CN102445959A - Latch mechanism for latching screen and mainframe of portable computer and computer thereof - Google Patents

Abstract

The invention discloses a latching mechanism for latching a screen and a host of a portable computer and the portable computer, wherein the latching mechanism comprises a first latching part which is arranged on one side of the screen in a manner of extending out of the screen; the pushing piece is used for driving the first latch fastener to rotate in a first rotating direction when being pushed in a first translation direction so as to enable the first latch fastener to slide into a first groove of the screen; and the elastic element is arranged on the pushing piece and connected with the first latch piece, and is used for driving the first latch piece to rotate in a second rotating direction opposite to the first rotating direction when the pushing piece is pushed in a second translating direction opposite to the first translating direction, so that the first latch piece extends out of the first groove of the screen and is used for latching a host.

Description

Latch mechanism for latching screen and mainframe of portable computer and computer thereof

technical field

The present invention relates to a latch mechanism for latching the screen and host of a portable computer and related portable computers, in particular to a latch mechanism with double-sided latch function and related portable computers . the

Background technique

Generally speaking, when the notebook computer is in the closed state, in order to fix the combination between the screen and the host, a latch mechanism for latching the screen and the host emerges at the historic moment. For example, the traditional latch mechanism often uses A hook structure, a latch structure, or a magnetic element configuration are used to achieve the purpose of combining and fixing the screen and the host. For example, U.S. Patent Application No. 12/323,445 discloses that a linkage set and a latch cooperate with each other to achieve a mechanism design for latching the screen and the host. However, in the background art, the mechanism movable part of the latch mechanism is often They are all installed on the host side, while the screen side is only equipped with fixed parts such as bolts. The mechanism of latch and release is achieved through the mutual cooperation of the movable part and the fixed part. In this way, the mechanism design is more complicated and takes up more mechanism space. The movable part used to execute the latch or release action will occupy the configuration space of other mechanical components on the host side, such as the configuration space of speakers, etc., and the host side often has more configuration components, so the design of the mechanism space is convenient. Every penny must be compared. Furthermore, for the convenience of users, a reversible notebook computer with handwriting input function is designed. The screen can be rotated 180 degrees. From the angle of view, so that customers can clearly see the content of the presentation, or discuss matters with colleagues at any time, so that two-way communication is barrier-free, and it has two usage modes of general notebook computer and tablet computer, which means that it can be used as a screen When it is pivoted 180 degrees and combined with the host, it can be used as a tablet computer. However, the latch mechanism currently used in this reversible notebook computer has not been developed from the mechanism design of the screen side that can be double-sidedly engaged with the host side, which means that it is used in two modes of use of a general notebook computer and a tablet computer. The mechanism design of the lower locking host end, so how to design a latch mechanism with a double-sided locking mechanism is a subject that needs to be worked hard for the design of the current portable computer mechanism. the

Contents of the invention

The object of the present invention is to provide a latch mechanism for latching the screen and host of a portable computer and the related portable computer to solve the above problems. the

To achieve the above purpose, the present invention discloses a latch mechanism for latching a screen and a host of a portable computer, which includes a first latch, which can be stretched out from the screen A first groove is installed on one side of the screen; a pusher is connected to the first latch, and the pusher is used to drive the first latch when pushed in a first translation direction The member rotates in a first rotation direction, so that the first latch member slides into the first slot of the screen; and an elastic member is installed on the push member and connected to the first latch member , the elastic element is used to drive the first latch to rotate in a second rotation direction opposite to the first rotation direction when the pusher is pushed in a second translation direction opposite to the first translation direction, The first latch member protrudes out of the first slot of the screen for latching the host. the

According to the present invention, one end of the first latch member is formed with a first rotating shaft hole and a first fixing hole, and one side of the pushing member is provided with a first positioning column, and the elastic element is sleeved on the first positioning column. , and one end of the first positioning post and the elastic element of the pusher is respectively inserted into the first rotating shaft hole and the first fixing hole. the

According to the claimed invention, an inclined surface structure is formed at one end of the first latch for guiding the first latch to protrude out of the first slot of the screen. the

According to the claimed invention, a plurality of rib structures are formed on the pushing member. the

According to the claimed invention, the elastic element is a torsion spring element. the

According to the claimed invention, the latch mechanism further includes a second latch, which is installed on the other side of the screen through a second slot protruding from the screen, and the first latch is connected to the second slot of the screen. The second latch is respectively connected to the two ends of the elastic element, and the pusher is also used to drive the second latch to rotate in the first rotation direction when being pushed in the second translation direction, so that the first Two latches slide into the second slot of the screen, and the elastic element is used to drive the second latch in the second rotation direction when the pusher is pushed in the first translation direction Rotate so that the second latch protrudes out of the second slot of the screen for latching the host. the

According to the present invention, one end of the second latch member is formed with a second rotating shaft hole and a second fixing hole, and one side of the pushing member is provided with a second positioning column, and the elastic element is sleeved on the second positioning column. , and one end of the second positioning post and the elastic element of the pushing member are respectively inserted into the second rotating shaft hole and the second fixing hole. the

According to the claimed invention, an inclined surface structure is formed at one end of the second latch for guiding the second latch to extend out of the second slot of the screen. the

The present invention also discloses a portable computer with a latch mechanism, which includes a host with an opening formed on it; a screen pivotally connected to the host, and a first opening formed on one side of the screen. slot; and a latch mechanism, which is used to latch the screen and the host, and the latch mechanism includes a first latch member, which can be installed in a manner that can extend out of the first slot of the screen On the side of the screen; a pusher connected to the first latch, the pusher is used to drive the first latch to rotate in a first rotational direction when pushed in a first translation direction to allow the first latch to slide into the first slot of the screen; and an elastic element installed on the pusher and connected to the first latch, the elastic element is used for the When the pusher is pushed in a second translation direction opposite to the first translation direction, the first latch is driven to rotate in a second rotation direction opposite to the first rotation direction, so that the first latch Extending out of the first slot of the screen, it is used for latching in the opening of the host. the

According to the claimed invention, a second slot is formed on the other side of the screen, and the latch mechanism further includes a second latch, which is installed in the second slot of the screen so as to protrude from the second slot. On the other side of the screen, the first latch and the second latch are respectively connected to the two ends of the elastic element, and the pusher is also used to drive the second The latch is rotated in the first rotation direction, so that the second latch is slid into the second slot of the screen, and the elastic element is also used for the pushing member to be moved in the first translation direction. When pushing, the second latch is driven to rotate in the second rotation direction, so that the second latch extends out of the second slot of the screen, and is used for latching in the opening of the host . the

According to the claimed invention, a guide groove structure and a stop block structure are respectively formed on the sides of the second slot of the screen, which are used to guide the second latch to slide into the second slot of the screen. in the slot. the

According to the claimed invention, the screen is pivotally connected to the host in a reversible manner. the

Description of drawings

Fig. 1 and Fig. 2 are respectively the appearance diagrams of the portable computer of the preferred embodiment of the present invention in different states;

FIG. 3 is an exploded schematic view of the components of the latch mechanism installed on the screen according to the preferred embodiment of the present invention;

Figure 4 and Figure 5 are schematic diagrams of the latch mechanism of the preferred embodiment of the present invention at different angles of view;

Figure 6 is an exploded schematic diagram of components of the latch mechanism of a preferred embodiment of the present invention;

Fig. 7 is the enlarged schematic view of side plate of preferred embodiment of the present invention;

Figures 8 to 12 are schematic diagrams of the continuous action of the internal structure of the latch mechanism of the preferred embodiment of the present invention;

Fig. 13 is the appearance schematic diagram of portable computer of another preferred embodiment of the present invention;

Fig. 14 is the schematic diagram of latch mechanism of another preferred embodiment of the present invention;

FIG. 15 is an exploded schematic view of components of a latch mechanism according to another preferred embodiment of the present invention. the

Description of main component symbols

50 Portable Computer 52 Host

521 opening 54 screen

56 Latch Mechanism 58 Housing

60 side plate 62 first slot

64 Second Slot 66 First Latch

661 The first rotating shaft hole 663 The first fixing hole

665 Inclined Plane Structure 667 Inclined Plane Structure

68 Second latch fastener 681 Second rotation shaft hole

683 Second fixing hole 685 Slope structure

687 Slope Structure 70 Pushing Parts

701 The first positioning post 703 The second positioning post

705 Rib structure 72 Elastic element

74 Guide groove structure 75 Stop block structure

76 Guide groove structure 77 Stop block structure

100 Portable Computer 102 Latch Mechanism

Detailed ways

Please refer to Fig. 1 and Fig. 2, Fig. 1 and Fig. 2 are respectively the appearance diagrams of a portable computer 50 in different states of a preferred embodiment of the present invention, the portable computer 50 can be a notebook computer, such as a reversible For notebook computers, etc., the portable computer 50 includes a host 52 on which an opening 521 is formed; the portable computer 50 further includes a screen 54 pivotally connected to the host 52 . For example, the screen 54 is pivotally connected to the host 52 in a convertible manner, that is to say, the screen can be rotated 180 degrees relative to the host 52, so that the portable computer 50 can be equipped with a general notebook computer and Two modes of use of the tablet computer, namely the use state of a general notebook computer as shown in FIG. 1, or as shown in FIG. The combination of the screen 54 and the host 52 can be used as a tablet computer. In addition, the portable computer 50 further includes a latch mechanism 56, which is used to latch the screen 54 and the host 52, and the latch mechanism 56 has a double-sided latch function, which means that when the portable computer 50 is in the position shown in FIG. When using the general notebook computer and tablet computer as shown in FIG. 2 , the latch mechanism 56 can be used to latch the screen 54 and the host 52 . the

Please refer to FIG. 3 to FIG. 6. FIG. 3 is an exploded schematic view of the latch mechanism 56 of the preferred embodiment of the present invention installed on the screen 54. FIG. 4 and FIG. 6 is an exploded schematic diagram of components of a latch mechanism 56 according to a preferred embodiment of the present invention. The screen 54 may include a casing 58 and a side panel 60. The latch mechanism 56 may be accommodated in the casing 58 and the side panel 60. A first slot 62 and a second slot 64 may be formed between the side panels 60 and on opposite sides of the screen 54 , that is, on the side panel 60 and the casing 58 . The latch mechanism 56 includes a first latch 66 , a second latch 68 , a pusher 70 , and an elastic element 72 . The first latch 66 is mounted on one side of the screen 54 in a manner that can protrude from the first slot 62 of the screen 54 , wherein one end of the first latch 66 is formed with a first rotating shaft hole 661 and a first rotating shaft hole 661 . The first fixing hole 663, and the other end of the first latch 66 is formed with a slope structure 665, which is used to guide the first latch 66 to slide into the opening 521 of the host 52 when the screen 54 is closed, the first latch A slope structure 667 is formed on the opposite side of the fastener 66 relative to the slope structure 665, which is used to guide the first latch 66 out of the first slot 62 of the screen 54; the second latch 68 can The second slot 64 protruding from the screen 54 is installed on the other side of the screen 54, wherein one end of the second latch 68 is formed with a second rotation axis hole 681 and a second fixing hole 683, and The other end of the second latch 68 is formed with an inclined surface structure 685, which is used to guide the second latch 68 to slide into the opening 521 of the main body 52 when the screen 54 is closed, and the second latch 68 is opposite to the inclined surface structure. The opposite side of 685 is formed with a slope structure 687, which is used to guide the second latch 68 out of the second slot 64 of the screen 54, basically the first latch 66 and the second latch 68 It can be elements of the same structure, so it can be convenient for manufacturing and material preparation management; the pusher 70 is connected to the first latch 66 and the second latch 68, and the pusher 70 can be a push button, when the user pushes the pusher At 70, the first latch 66 and the second latch 68 can be synchronously driven, and one side of the pusher 70 is respectively provided with a first positioning post 701 and a second positioning post 703, and the pusher 70 can be formed with A plurality of rib structures 705 are used to provide a place for the user to push the pushing member 70; the elastic element 72 is installed on the pushing member 70 and its two ends are respectively connected to the first latch 66 and the second latch 68 , the two ends of the elastic element 72 can be sleeved on the first positioning column 701 and the second positioning column 703 respectively, and one end of the first positioning column 701 and the elastic element 72 of the pusher 70 are respectively inserted into the first positioning hole and the first rotating shaft The hole 661 and the first fixing hole 663 , the first positioning column 701 can be used as a rotation axis after being inserted into the first rotating shaft hole 661 , and the first fixing hole 663 can be used to connect the first latch 66 and the body of the elastic element 72 . The second positioning post 703 of the pusher 70 and the other end of the elastic element 72 are respectively inserted into the second positioning hole, the second rotating shaft hole 681 and the second fixing hole 683, and the second positioning post 703 can be used as a When the axis is rotated, the second fixing hole 683 can be used to connect the second latch 68 and the body of the elastic element 72 . In this way, the first latch 66 , the second latch 68 , and the elastic element 72 can be fixed on the pusher 70 . In addition, please refer to FIG. 3 and FIG. 7. FIG. 7 is an enlarged schematic view of the side panel 60 in a preferred embodiment of the present invention. A guide groove structure 74 and a stop block are respectively formed on the side of the first slot 62 of the screen 54. The structure 75 is similar to the structure of the side plate 60. The side of the second slot 64 of the housing 58 of the screen 54 can also be respectively formed with a guide groove structure 76 and a stop block structure 77. The guide groove structure 74 and the stop block structure The block structure 75 is used to guide the first latch 66 to slide into the first slot 62 of the screen 54 , and the guide groove structure 76 and the stopper structure 77 are used to guide the second latch 68 to slide in. Inside the second slot 64 of the screen 54 . the

Please refer to Fig. 1 to Fig. 11, Fig. 8 to Fig. 12 are schematic diagrams of the continuous operation of the internal structure of the latch mechanism 56 of the preferred embodiment of the present invention, in order to clearly show the first latch 66 and the second latch 68 on the screen 54, the first latch 66 and the second latch 68 are shown in perspective in FIGS. 8 to 12 . As shown in FIG. 8 , when the first latch 66 is fully stretched out of the first slot 62 , the second latch 68 is not stretched out of the second slot 64 but accommodated in the screen 54 . At this time, the first latch 66 can be used to latch the opening 521 of the host 52, which means that the portable computer 50 can be latched by the first latch 66 in the use state of the general notebook computer shown in FIG. 1 . Lock the host computer 52 and the screen 54 . And when the user pushes the pusher 70 to move in a first translation direction (+X direction), the first latch 66 will rotate in a first rotation direction (clockwise), so that the first latch 66 Gradually slide into the first slot 62 of the screen 54, and through the design of the guide groove structure 74 and the stopper structure 75, the first latch 66 can slide into the first slot 62 of the screen 54 more smoothly. While the first latch member 66 slides into the first slot 62 of the screen 54, the second latch member 68 can be driven gradually opposite to the first rotation direction due to the torsion force provided by the elastic member 72. Rotate in a second rotation direction (counterclockwise), so that the second latch 68 gradually protrudes out of the second slot 64 of the screen 54, and the design of the slope structure 687 allows the second latch to The member 68 extends out of the second slot 64 of the screen 54 more smoothly. As shown in FIG. 12 , when the first latch 66 is fully retracted into the first slot 62 and accommodated in the screen 54 , the second latch 68 is completely extended out of the second slot 64 . If the screen 54 is turned over 180 degrees at the same time, the second latch 68 can be used to latch the opening 521 of the host 52, which means that the portable computer 50 can be used in the use state of the tablet computer shown in FIG. The second latch 68 is used to latch the host 52 and the screen 54 . the

Correspondingly, when the user pushes the pusher 70 to move in a second translation direction (-X direction) opposite to the first translation direction, the second latch 68 will rotate in the first rotation direction (clockwise direction). so that the second latch 68 gradually slides into the second slot 64 of the screen 54, and the design of the guide groove structure 76 and the stop block structure 77 allows the second latch 68 to slide in more smoothly. In the second slot 64 of the screen 54, while the second latch 68 slides into the second slot 64 of the screen 54, the first latch 66 can be driven gradually due to the torsion provided by the elastic element 72. Rotate in the second rotation direction (counterclockwise), so that the first latch 66 gradually protrudes out of the first slot 62 of the screen 54, and the design of the slope structure 667 allows the first latch The fastener 66 protrudes out of the first slot 62 of the screen 54 more smoothly. To sum up, through the two-way movement of the pusher 70, the first latch 66 or the second latch 68 can be driven to protrude from the screen 54 or slide into the screen 54, respectively, and then determine whether it is suitable for a general notebook computer. Or when the tablet computer is in use, use the latch on the corresponding side to latch the host 52 and the screen 54 to achieve the double-sided latch function. the

In addition, the latch mechanism of the present invention can also be applied to the mechanism design of a single-sided latch, that is, the configuration of the first latch or the second latch is omitted, so that the latch can be extended when the latch is required to perform the latching action. The latch is placed outside the screen, and if the latch is not needed for latching action, the latch can be hidden inside the screen to keep the overall appearance beautiful. Please refer to FIG. 13. FIG. 13 is a schematic view of another preferred embodiment of the present invention—a portable computer 100. The portable computer 100 can be a notebook computer, which includes a host computer 52 with openings formed on it. 521; the portable computer 100 further includes a screen 54, which is pivotally connected to the host 52; the difference between the aforementioned embodiments is that the portable computer 100 further includes a latch mechanism 102, which is used to latch the screen 54 With the host 52, the latch mechanism 102 only has a single-side latch function. the

Please refer to FIG. 13 to FIG. 15 , FIG. 14 is a schematic diagram of a latch mechanism 102 according to another preferred embodiment of the present invention, and FIG. 15 is an exploded schematic diagram of components of a latch mechanism 102 according to another preferred embodiment of the present invention. In this embodiment The middle latch mechanism 102 only includes a single first latch 66, and the first latch 66 is also installed on one side of the screen 54 in a manner that can protrude from the first slot 62 of the screen 54. The first latch One end of the fastener 66 is formed with a first rotating shaft hole 661 and a first fixing hole 663 , and the other end of the first latch 66 is formed with a slope structure 665 , which is used to guide the first latch 66 on the screen 54 When closed, it slides into the opening 521 of the host 52, and the first latch 66 is formed with a slope structure 667 on the side opposite to the slope structure 665, which is used to guide the first latch 66 out of the second screen 54. A slot 62 outside. The pusher 70 is connected to the first latch 66, and the pusher 70 can be a push button. When the user pushes the pusher 70, the first latch 66 can be driven synchronously, and one side of the pusher 70 is respectively provided with a second A positioning column 701, and a plurality of rib structures 705 may be formed on the pusher 70, which is used to provide a place for the user to push the pusher 70; the elastic element 72 is installed on the pusher 70 and one end thereof is connected to the first The latch 66 and the elastic element 72 can be sleeved on the first positioning column 701, and the first positioning column 701 of the pusher 70 and the end of the elastic element 72 are respectively inserted into the first rotating shaft hole 661 and the first fixing hole 663, The first positioning column 701 can be used as a rotation axis after being inserted into the first rotation shaft hole 661, and the first fixing hole 663 can be used to connect the first latch 66 and the body of the elastic element 72 for fixing the first latch 66, The elastic element 72 is on the pusher 70 . the

8 to 12 of the previous embodiment is that when the user pushes the pusher 70 to move in the first translation direction (+X direction), the first latch 66 will move in the first rotation direction (+X direction). clockwise) so that the first latch 66 gradually slides into the first slot 62 of the screen 54 for hiding and storing the first latch 66 . In contrast, when the user pushes the pusher 70 to move in the direction opposite to the second translation direction (-X direction), the first latch 66 can be driven gradually in the second rotation direction due to the torsion force provided by the elastic member 72 Rotate (counterclockwise) so that the first latch 66 gradually protrudes out of the first slot 62 of the screen 54, for utilizing the first latch 66 to latch the host computer 52 and the screen 54, and Its working principle is the same as that of the aforementioned embodiments, only the configuration of the aforementioned second latch and related structures is omitted, so it will not be repeated here. the

Compared with the background technology, the movable part of the latch mechanism of the present invention is arranged on the screen side, so it can save the mechanism configuration space on the host side, and it has a mechanism design of double-sided latching host and screen, which means The main unit and the screen can be latched and fixed under the two use modes of a general notebook computer and a tablet computer. To sum up, the present invention provides a practical latch mechanism. the

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the patent of the present invention. the

Claims (19)

1. A latch mechanism for latching a screen and a host of a portable computer, comprising: a first latch member installed on one side of the screen in a manner capable of protruding from a first slot of the screen; a pusher, which is connected to the first latch, and is used to drive the first latch to rotate in a first rotation direction when pushed in a first translation direction, so that the first latch slide into the first slot of the screen; and an elastic element mounted on the pusher and connected to the first latch for driving the first latch when the pusher is pushed in a second translation direction opposite to the first translation direction The fastener rotates in a second rotation direction opposite to the first rotation direction, so that the first latch extends out of the first slot of the screen for latching the host. 2. The latch mechanism as claimed in claim 1, wherein one end of the first latch member is formed with a first rotating shaft hole and a first fixing hole, one side of the push member is provided with a first positioning post, the The elastic element is sheathed on the first positioning post, and one end of the first positioning post and the elastic element of the pusher is respectively inserted into the first rotating shaft hole and the first fixing hole. 3. The latch mechanism as claimed in claim 1, wherein one end of the first latch is formed with a slope structure, which is used to guide the first latch to protrude from the first slot of the screen . 4. The latch mechanism as claimed in claim 1, wherein a plurality of rib structures are formed on the pushing member. 5. The latch mechanism as claimed in claim 1, wherein the elastic element is a torsion spring element. 6. The latch mechanism according to claim 1, further comprising a second latch, which is installed on the other side of the screen in a second slot that can protrude from the screen, the The first latch and the second latch are respectively connected to both ends of the elastic element, and the pusher is also used to drive the second latch in the first rotation direction when the second translation direction is pushed rotate, so that the second latch member slides into the second slot of the screen, and the elastic element is used to drive the second latch member when the pusher is pushed in the first translation direction Rotate in the second rotation direction, so that the second latch part protrudes out of the second slot of the screen, and is used for latching the host. 7. The latch mechanism as claimed in claim 6, wherein one end of the second latch member is formed with a second rotating shaft hole and a second fixing hole, one side of the pushing member is provided with a second positioning post, the The elastic element is sheathed on the second positioning post, and one end of the second positioning post and the elastic element of the pushing member are respectively inserted into the second rotating shaft hole and the second fixing hole. 8. The latch mechanism as claimed in claim 6, wherein one end of the second latch is formed with a slope structure, which is used to guide the second latch to protrude from the second slot of the screen . 9. A portable computer with a latch mechanism, comprising: a host with an opening formed thereon; a screen, which is pivotally connected to the host, and a first slot is formed on one side of the screen; and A latch mechanism, which is used to latch the screen and the host, and the latch mechanism includes: a first latch mounted on the side of the screen in a manner protruding from the first slot of the screen; a pusher, which is connected to the first latch, and is used to drive the first latch to rotate in a first rotation direction when pushed in a first translation direction, so that the first latch slide into the first slot of the screen; and an elastic element mounted on the pusher and connected to the first latch for driving the first latch when the pusher is pushed in a second translation direction opposite to the first translation direction The buckle rotates in a second rotation direction opposite to the first rotation direction, so that the first latch protrudes out of the first slot of the screen, and is used for latching to the opening of the host Inside. 10. The portable computer as claimed in claim 9, wherein one end of the first latch member is formed with a first rotating shaft hole and a first fixing hole, and one side of the pushing member is provided with a first positioning column, The elastic element is sheathed on the first positioning post, and one end of the first positioning post and the elastic element of the pusher is respectively inserted into the first rotating shaft hole and the first fixing hole. 11. The portable computer as claimed in claim 9, wherein one end of the first latch is formed with a slope structure, which is used to guide the first latch to protrude from the first slot of the screen outside. 12. The portable computer as claimed in claim 9, wherein a guide groove structure is formed on the side of the first slot of the screen, which is used to guide the first latch to slide into the screen. in the first slot. 13. The portable computer as claimed in claim 9, wherein a plurality of rib structures are formed on the pushing member. 14. The portable computer as claimed in claim 9, wherein the elastic element is a torsion spring element. 15. The portable computer as claimed in claim 9, wherein a second slot is formed on the other side of the screen, and the latch mechanism further comprises a second latch, which can protrude from the screen. The second slot of the screen is installed on the other side of the screen, the first latch and the second latch are respectively connected to the two ends of the elastic element, and the pusher is also used for the When the second translation direction is pushed, the second latch member is driven to rotate in the first rotation direction, so that the second latch member slides into the second slot of the screen, and the elastic element is also used for When the pusher is pushed in the first translation direction, the second latch is driven to rotate in the second rotation direction, so that the second latch protrudes out of the second slot of the screen. The latch is in the opening of the host. 16. The portable computer as claimed in claim 15, wherein one end of the second latch member is formed with a second rotating shaft hole and a second fixing hole, and one side of the pushing member is provided with a second positioning post, The elastic element is sheathed on the second positioning post, and one end of the second positioning post and the elastic element of the pushing member are respectively inserted into the second rotating shaft hole and the second fixing hole. 17. The portable computer as claimed in claim 15, wherein one end of the second latch is formed with a slope structure, which is used to guide the second latch to protrude from the second slot of the screen outside. 18. The portable computer as claimed in claim 15, wherein the side of the second slot of the screen is respectively formed with a guide groove structure and a stop block structure, which are used to guide the second latch The piece slides into the second slot of the screen. 19. The portable computer as claimed in claim 15, wherein the screen is hinged to the host in a convertible manner.

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