A server case capable of realizing self-locking of PCB card plate

Abstract

The application discloses a server case capable of realizing self-locking of a PCB card plate, which comprises a PCB card plate, a case shell and a lock catch assembly, the inside of the case shell is provided with guide rails for assisting the pulling and inserting of the PCB card plate, the rear end of the case shell is provided with a gold finger female seat, the rear end of the PCB card plate is provided with a gold finger, the lock catch assembly is located at the front end of the case shell, the lock catch assembly is arranged on the side of the PCB card plate along the pulling and inserting movement direction of the PCB card plate, or the lock catch assembly is arranged at the bottom of the guide rail; after the gold finger is inserted into the gold finger female seat, the lock catch assembly is actuated, so that the PCB card plate is connected and fixed with the guide rail through the lock catch assembly, thereby realizing self-locking of the PCB card plate in the case shell. The application has the characteristics of compact structure, convenient operation and high connection reliability, and can realize the fixation of the PCB card plate very conveniently.

Description

Technical Field

[0001] This invention belongs to the field of audio and video transmission technology, specifically relating to a server chassis that can achieve self-locking of PCB boards. Background Technology

[0002] Server chassis with movable PCB boards currently available on the market generally fall into two structural categories: One type of server chassis has a fixed front panel. The gold finger connector 200 of the PCB board 100 is located at the front of the chassis, and the PCB board 100 is pulled out from the rear and locked in place by hand-tightening screws 300. The signal interface 400 is located at the rear, so signal cables are also connected from the rear. This type of server chassis offers good stability, but its disadvantage is that the locking mechanism and signal interface are located at the rear, taking up more space. Figure 1 As shown.

[0003] Another type features a server chassis with an openable front panel. The gold finger connector 200 of the PCB board 100 is located at the rear. The PCB board 100 is pulled out from the front and can only be secured at the front. The signal interface 400 is located at the rear, and signal cables are connected from the rear. Because the front panel is an openable, movable structure, the overall stability of the server chassis is lower. However, because there are no hand-tightening screws 300 or other fixing structures at the rear, the overall space occupied by the chassis is smaller. Figure 2 As shown.

[0004] In the prior art, to secure the PCB cards 100, a push rod 503 is installed on the front panel 501 of the chassis. After all the PCB cards 100 are inserted, the front panel 501 is closed and the thumbscrews 300 on both sides of the front panel 501 are tightened. The push rod 503 will then push all the PCB cards 100 forward to prevent them from retracting. Figure 3 As shown. This method has the following disadvantages: (1) Since the PCB board 100 must rely on the front panel 501 for support, when the user replaces the PCB board 100, if the front panel 501 is not closed before the rear signal line is connected, the PCB board 100 may be pushed out of the front of the chassis by the rear, resulting in a very poor user experience. (2) If the part processing error plus the assembly error results in the overall size being too small, the PCB board 100 will not be tightly secured and will have loose space, which will lead to poor contact of the gold fingers of the PCB board 100 and functional problems. (3) If the part processing error plus the assembly error results in an overall larger size, the PCB board 100 will be pushed too tightly, which will cause the PCB board 100 to deform and the probability of functional problems is extremely high. (4) If the PCB board 100 is pushed too tightly, another problem will arise, namely that the hand screw 300 cannot be fully tightened, resulting in a large gap or step difference between the front panel 501 and the chassis 500, which seriously affects the appearance of the product. Moreover, the user experience of hand screwing is also very poor, as the resistance is high when it is tightened, making it difficult to screw in.

[0005] (5) Since the PCB board 100 is relatively long and there are gaps between the PCB board 100 and the upper and lower guide rails inside the chassis 500, it is difficult to slide and wipe smoothly if no gap is left. The connecting rod assembly 502 of the front panel 501 is usually set at the upper left of the PCB board 100 and the gold fingers of the PCB board 100 are located at the lower right of the board. Therefore, the clamping force provided by the push rod 503 is not on the same horizontal line, which can easily cause the PCB board 100 to tilt. The pin pitch of the gold fingers is very small (0.5mm / pich), and the PCB board tilt can easily lead to poor contact of the gold fingers. Summary of the Invention

[0006] The technical problem this invention aims to solve is to address the deficiency of existing server chassis in audio and video transmission systems where PCB boards cannot be securely locked. This invention provides a server chassis that is compact, easy to operate, and highly reliable, enabling PCB board self-locking. To achieve the above objective, this invention can adopt the following technical solution: A server chassis capable of self-locking PCB boards, the server chassis being used for audio and video transmission, includes PCB boards, a chassis housing, and a locking assembly. The chassis housing has internal guide rails for assisting in the insertion and removal of the PCB boards. A gold finger socket is located at the rear end of the chassis housing, and gold fingers are located at the rear end of the PCB boards. The locking assembly is located at the front end of the chassis housing and is positioned on the side of the PCB boards along the insertion and removal direction of the PCB boards, or at the bottom of the guide rails. When the gold fingers are inserted into the gold finger socket, the locking assembly is activated, causing the PCB boards to connect and be fixed to the guide rails via the locking assembly, thus achieving self-locking of the PCB boards within the chassis housing. As a further improvement of the present invention, the locking assembly includes a locking body, which adopts an elastic metal sheet structure; when the PCB board is self-locked in the chassis housing, the locking body is connected and fixed to the PCB board and the guide rail respectively. As a further improvement of the present invention, the front end of the PCB board is provided with an elongated hole and a first connecting hole; the upper part of the locking body is provided with a locking hook, and the lower part of the locking body is provided with a second connecting hole corresponding to the first connecting hole. A screw post is riveted in the second connecting hole, and a screw is screwed into the screw post and the first connecting hole to realize the rotatable connection between the locking body and the PCB board; when the gold finger is inserted into the gold finger socket, the locking body is rotated left and right, the locking hook is inserted into the elongated hole, and the bottom of the locking body is inserted into the guide rail to realize the self-locking of the PCB board. As a further improvement of the present invention, a spring washer and a first flat washer are provided between the screw and the PCB board, and a second flat washer is provided between the locking body and the PCB board. As a further improvement of the present invention, a limiting plate is provided on the side of the locking body. When the PCB card is self-locked, the limiting plate abuts against the side of the PCB card. As a further improvement of the present invention, the front end of the PCB board is provided with a first connecting hole; the side of the locking body is provided with a locking hook, and the end of the locking body is provided with a second connecting hole corresponding to the first connecting hole. Screws are screwed into the second connecting hole and the first connecting hole, and the screws are tightened by a patch nut to realize the rotatable connection between the locking body and the PCB board; when the gold finger is inserted into the gold finger socket, the locking body is rotated up and down, and the locking hook is inserted into the guide rail to realize the self-locking of the PCB board. As a further improvement of the present invention, the front end of the PCB board is provided with an upper limit hole and a lower limit hole, and the latch body is provided with a limiting protrusion, which is located above the latch hook; when the PCB board is in the locked state, the limiting protrusion is inserted into the lower limit hole, and when the PCB board is in the unlocked state, the limiting protrusion is inserted into the upper limit hole. As a further improvement of the present invention, the guide rail is provided with a locking limit hole, and the locking limit hole is provided with an elastic buffer; when the PCB board is in the locked state, the locking assembly is inserted into the locking limit hole. As a further improvement of the present invention, the PCB board has a notch at the bottom, one end of the locking body has a locking hook, the other end of the locking body has a second connecting hole, and the guide rail has mounting holes corresponding to the second connecting hole. Screws are screwed into the second connecting hole and the mounting hole to connect the locking body to the guide rail. The locking hook is located on the outer side of the end of the guide rail. When the gold finger is inserted into the gold finger socket, the locking body is lifted up and the locking hook is inserted into the notch to achieve self-locking of the PCB board.

[0007] As a further improvement of the present invention, the side of the latch body is provided with an elastic buffer member. When the latch hook is inserted into the notch, the elastic buffer member is located between the latch hook and the notch. Compared with the prior art, the advantages of the present invention are as follows: The server chassis of the present invention enables PCB card self-locking. By setting the locking assembly at the front end of the chassis shell, specifically, the locking assembly can be set on the side of the PCB card along the insertion and removal direction of the PCB card, or it can be set at the bottom of the guide rail. The locking assembly and the gold fingers are almost on the same horizontal line, which greatly eliminates the risk of PCB card tilting under force. When the gold fingers are inserted into the gold finger socket, the locking assembly is moved to fix the PCB card to the guide rail through the locking assembly, thus realizing the self-locking of the PCB card in the chassis shell. Correspondingly, the locking assembly can be moved to unlock the PCB card from the guide rail, which is convenient to operate and does not cause any appearance problems between the front panel and the chassis shell. Attached Figure Description

[0008] Figure 1 This is one of the structural diagrams of a server chassis in the prior art; Figure 2 This is the second schematic diagram of a server chassis in the prior art; Figure 3 This is a schematic diagram of the internal structure of a server chassis in the prior art; Figure 4 This is a schematic diagram of the structural principle of a server chassis that enables PCB board self-locking in specific embodiment 1 of the present invention; Figure 5 for Figure 4 A schematic diagram of the structural principle at point A in the middle; Figure 6 This is a schematic diagram of the exploded structure principle of the locking assembly in specific embodiment 1 of the present invention; Figure 7 Figure 1 is a schematic diagram of the self-locking structure of the PCB board in a specific embodiment of the present invention; wherein, Figure (a) shows the schematic diagram of the structure of the PCB board in the unlocked state, Figure (b) shows the schematic diagram of the structure of the PCB board in the locked state, and Figure (c) shows the side view of the structure of the PCB board in the locked state. Figure 8 This is a schematic diagram illustrating the structural principle of a server chassis capable of self-locking PCB boards in specific embodiment 2 of the present invention; Figure 9 for Figure 8 A schematic diagram of the structural principle at point B; Figure 10 This is a schematic diagram of the exploded structure principle of the locking assembly in specific embodiment 2 of the present invention; Figure 11 This is a schematic diagram of the self-locking structure of the PCB board in a specific embodiment 2 of the present invention; wherein, Figure (a) shows the schematic diagram of the structure of the PCB board in the unlocked state, and Figure (b) shows the schematic diagram of the structure of the PCB board in the locked state; Figure 12 This is a schematic diagram of the structural principle of the server chassis that enables PCB board self-locking in specific embodiment 3 of the present invention; Figure 13 for Figure 12 A schematic diagram of the structural principle at point C; Figure 14 This is a schematic diagram of the exploded structure principle of the locking assembly in specific embodiment 3 of the present invention; Figure 15 This is a schematic diagram of the self-locking structure of the PCB board in a specific embodiment 3 of the present invention; wherein, Figure (a) shows the schematic diagram of the structure of the PCB board in the unlocked state, and Figure (b) shows the schematic diagram of the structure of the PCB board in the locked state; Legend: 100, PCB board; 101, Gold finger; 102, Long strip hole; 103, First connecting hole; 104, Upper limit hole; 105, Lower limit hole; 106, Notch; 200, Gold finger socket; 300, Tightening screw; 400, Signal interface; 500, Chassis housing; 501, Front panel; 502, Linkage assembly; 503, Top rod; 504, Guide rail; 505, Locking limit hole; 506, Elastic buffer; 507, Mounting hole; 600, Locking assembly; 601, Locking body; 602, Locking hook; 603, Limiting plate; 604, Second connecting hole; 605, Screw post; 606, Screw; 607, Spring washer; 608, First flat washer; 609, Second flat washer; 610, Paddle; 611, Limiting protrusion; 612, Patch nut. Detailed Implementation

[0009] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but this does not limit the scope of protection of the present invention.

[0010] In the description of this invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0011] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more unless otherwise explicitly specified.

[0012] Example 1 like Figures 4 to 7 As shown, the present invention provides a server chassis with a PCB board self-locking capability, which is used for audio and video transmission. The server chassis includes a PCB board 100, a chassis housing 500, and a locking assembly 600. The chassis housing 500 has guide rails 504 on both the upper and lower inner sides for assisting in the insertion and removal of the PCB board 100. A gold finger female connector 200 is located at the rear end of the chassis housing 500, and a gold finger 101 and a signal interface 400 are located at the rear end of the PCB board 100. The locking assembly 600 is located at the front end of the chassis housing 500, and is positioned on the side of the PCB card 100 along the insertion / removal direction of the PCB card 100. When the PCB card 100 is inserted into the chassis housing 500 from the front end, and the gold fingers 101 are inserted into the gold finger socket 200, the locking assembly 600 is activated, causing the PCB card 100 to be connected and fixed to the guide rail 504 via the locking assembly 600, thereby achieving self-locking of the PCB card 100 within the chassis housing 500. It is understood that the specific internal structure of the chassis housing 500 can employ conventional technical means, and will not be elaborated upon here.

[0013] In this embodiment, by setting the locking assembly 600 at the front end of the chassis housing 500, specifically, the locking assembly 600 can be positioned on the side of the PCB card 100 along the insertion / removal direction of the PCB card 100, or it can be positioned at the bottom of the guide rail 504. The locking assembly 600 and the gold finger 101 are almost on the same horizontal line, greatly eliminating the risk of the PCB card 100 tilting under force. When the gold finger 101 is inserted into the gold finger socket 200, moving the locking assembly 600 connects and fixes the PCB card 100 to the guide rail 504, thus achieving self-locking of the PCB card 100 within the chassis housing 500. Correspondingly, moving the locking assembly unlocks the PCB card 100 from the guide rail 504, making operation convenient and avoiding any aesthetic issues between the front panel and the chassis housing 500.

[0014] In this embodiment, the locking assembly 600 includes a locking body 601, which adopts an elastic metal sheet structure. Specifically, the locking body 601 is made of sheet metal with a thickness of 1.0 mm, cut into a predetermined shape and bent into shape. When the PCB board 100 is self-locked inside the chassis housing 500, the locking body 601 is connected and fixed to the PCB board 100 and the guide rail 504 respectively. When the PCB board 100 needs to be removed and replaced from the front end of the chassis housing 500, the locking assembly 600 provided on the PCB board 100 can lock or unlock the PCB board 100 by moving the locking body 601. like Figure 6 As shown, the front end of the PCB board 100 has an elongated hole 102 and a first connecting hole 103. The elongated hole 102 facilitates the operator's insertion and removal of the PCB board 100 by hand. The upper part of the locking body 601 has a locking hook 602, and the lower part of the locking body 601 has a second connecting hole 604 corresponding to the first connecting hole 103. A hexagonal screw post 605 is riveted into the second connecting hole 604. Screws 606 are screwed into the screw post 605 and the first connecting hole 103 to achieve a rotatable connection between the locking body 601 and the PCB board 100. Figure 7 As shown, when the gold finger 101 is inserted into the gold finger socket 200, the locking body 601 is rotated to the right, and the locking hook 602 is inserted into the elongated hole 102. The bottom of the locking body 601 is inserted into the guide rail 504 to achieve self-locking of the PCB board 100. When the PCB board 100 needs to be replaced, the locking body 601 is rotated to the left, and the locking hook 602 is pulled out from the elongated hole 102, and the bottom of the locking body 601 is removed from the guide rail 504.

[0015] In this embodiment, a lever 610 is also provided at the end of the latch body 601. The lever 610 is close to the latch hook 602 and away from the second connecting hole 604. By rotating the lever 610, the latch body 601 can be easily rotated. Figure 4 and Figure 5 As shown, a locking limit hole 505 is provided on the guide rail 504, and an elastic buffer 506 is provided inside the locking limit hole 505. When the PCB board 100 is in the locked state, the bottom of the latch body 601 is inserted into the locking limit hole 505. Since there are inevitably processing and assembly errors in structural components, in order to compensate for these dimensional errors, silicone is provided as an elastic buffer 506 at the latch body 601 and the locking limit hole 505 to ensure that the gold fingers 101 of the PCB board 100 are firmly inserted into the gold finger socket 200 even if the size is too large or too small.

[0016] like Figure 6As shown, a spring washer 607 and a first flat washer 608 are provided between the screw 606 and the PCB board 100, and a second flat washer 609 is provided between the locking body 601 and the PCB board 100. In this embodiment, the locking body 601 is fixed to the side of the PCB board 100 by using two flat washers on the left and right sides plus the spring washer 607 and a capped screw. The purpose of providing one flat washer on each side of the PCB board 100 is that when the locking body 601 makes a circular motion, it only comes into contact with the flat washer and the friction is limited to the area of ​​the flat washer, thus minimizing the wear between the PCB board 100 and the locking body 601. The purpose of providing a spring washer 607 under the screw 606 is to provide a pulling force to the locking body 601 inclined towards the elongated hole 102, ensuring that the locking hook 602 can be continuously and forcefully hooked into the elongated hole 102 of the PCB board 100 without loosening. Since once it comes loose, it is equivalent to unlocking, so it is necessary to ensure that the latch hook 602 is securely connected to the elongated hole 102.

[0017] like Figure 6 and Figure 7 As shown, a limiting plate 603 is provided on the side of the locking body 601. When the PCB card 100 is self-locked, the limiting plate 603 abuts against the side of the PCB card 100 to prevent the PCB card 100 from being squeezed due to excessive rotation angle of the locking body 601.

[0018] In this embodiment, the locking assembly 600 is designed with a paddle 610 (hand grip position) for easy user operation and a limiting plate 603 (flip limit) to restrict the flipping angle. Figure 7 As shown, the locking body 601 rotates around the cylindrical axis of the hexagonal screw post 605. Assuming the locking body 601 is in an unlocked state, it may be in a horizontal position. The user only needs to touch the lever 610 with their finger and rotate it upwards until the locking hook 602 moves to the vertical edge of the PCB board 100. Then, gently push the lever 610 to the right a certain distance. Due to the excellent elasticity of the 1.0mm thick sheet metal, the locking hook 602 deforms in the deformation area and hooks into the elongated hole 102. At this time, the bottom end of the locking body 601 and the locking limit hole 505 complete the clamping action. The PCB board 100 is pushed forward by this clamping action, and the gold finger 101 is inserted into the gold finger socket 200. This completes the locking of the PCB board 100. The above process is repeated. The reverse operation is the unlocking process of the PCB board 100. It is understandable that, since the structure of the latch body 601 needs to occupy a part of the edge area of ​​the PCB board 100, this area cannot be used for wiring or component placement and must be kept as empty as possible.

[0019] Example 2 like Figures 8 to 11As shown, the server chassis of the present invention, which enables PCB board self-locking, has a similar structural configuration and working principle to the server chassis in Embodiment 1. The main difference lies in that: the front end of the PCB board 100 has a first connecting hole 103; the side of the locking body 601 has a locking hook 602, and the end of the locking body 601 has a second connecting hole 604 corresponding to the first connecting hole 103. A screw 606 with a spring washer is screwed into the second connecting hole 604 and the first connecting hole 103, and the screw 606 is tightened by a patch nut 612 to achieve a rotatable connection between the locking body 601 and the PCB board 100. The screw 606 with the spring washer continuously provides clamping force to the locking body 601, ensuring that the locking body 601 is tightly attached to the PCB board 100. Figure 11 As shown, when the gold finger 101 is inserted into the gold finger socket 200, the locking body 601 is rotated downwards and the locking hook 602 is inserted into the guide rail 504 to achieve self-locking of the PCB board 100; correspondingly, the locking body 601 is lifted upwards and the locking hook 602 is pulled out from the guide rail 504 to achieve unlocking of the PCB board 100.

[0020] like Figure 10 and Figure 11 As shown, the front end of the PCB card 100 is also provided with an elongated hole 102, an upper limit hole 104, and a lower limit hole 105. The elongated hole 102 facilitates the insertion and removal of the PCB card 100 by pinching it. The latch body 601 is provided with a limiting protrusion 611, which is located above the latch hook 602. When the PCB card 100 is in the locked state, the limiting protrusion 611 is inserted into the lower limit hole 105; when the PCB card 100 is in the unlocked state, the limiting protrusion 611 is inserted into the upper limit hole 104. The setting of the upper limit hole 104 and the lower limit hole 105 ensures a stable connection between the PCB card 100, the latch body 601, and the guide rail 504 in the locked state, and also prevents the latch body 601 from affecting the insertion and removal of the PCB card 100 in the unlocked state.

[0021] In this embodiment, a lever 610 is provided at the end of the latch body 601, and the lever 610 and the second connecting hole 604 are respectively located at both ends of the latch body 601. By lifting or pressing the lever 610, the latch body 601 will move in a circular motion around the screw 606. The latch body 601 can complete the locking and unlocking operation of the PCB card 100 by moving a short distance up and down. It can be understood that in this embodiment, the open area of ​​the PCB card 100 is slightly larger than that in embodiment 1. The reason is that the limiting protrusion 611 will contact the PCB card 100 and generate friction. Therefore, the distance between the second connecting hole 604 and the limiting protrusion 611 is made slightly longer to ensure that the deformation area of ​​the latch body 601 is longer and easier to deform, thereby reducing friction and extending the life of the PCB card 100.

[0022] like Figure 8 and Figure 9 As shown, a locking limit hole 505 is provided on the guide rail 504, and an elastic buffer 506 is provided inside the locking limit hole 505. When the PCB board 100 is in the locked state, the bottom of the locking hook 602 is inserted into the locking limit hole 505. Since there are inevitably processing and assembly errors in structural components, in order to compensate for these dimensional errors, silicone is provided as an elastic buffer 506 at the locking hook 602 and the locking limit hole 505 to ensure that the gold fingers 101 of the PCB board 100 are firmly inserted into the gold finger socket 200 even if the size is too large or too small.

[0023] Example 3 like Figures 12 to 15 As shown, the server chassis of the present invention, which enables PCB board self-locking, has a similar structural configuration and working principle to the server chassis in Embodiment 1. The main difference lies in the following: the PCB board 100 has a notch 106 at its bottom; the locking body 601 is made of 1.0mm thick sheet metal; one end of the locking body 601 has a locking hook 602; the other end of the locking body 601 has two parallel second connecting holes 604; and the guide rail 504 has mounting holes 507 corresponding to the second connecting holes 604. Screws 606 are screwed into the second connecting holes 604 and mounting holes 507 to connect the locking body 601 to the guide rail 504. The locking hook 602 is located on the outer side of the end of the guide rail 504. Figure 15 As shown, when the gold finger 101 is inserted into the gold finger socket 200, the locking body 601 is lifted and the locking hook 602 is inserted into the notch 106 to achieve self-locking of the PCB board 100.

[0024] like Figure 14 As shown, in this embodiment, a space for accommodating the latch body 601 is machined on the reverse side of the guide rail 504. The latch body 601 and the guide rail 504 are fixed by screws, thus forming an elastic latch structure. The elasticity of the latch body 601 and the latch hook 602 hook the notch 106 of the PCB card 100, forming a pulling force to prevent the PCB card 100 from being displaced by the rear push force.

[0025] like Figure 15As shown, the latch body 601 is fixed to the reverse side of the guide rail 504, and the latch hook 602 extends to the outer side of the end of the guide rail 504. Therefore, when the PCB board 100 slides into the chassis housing 500 through the guide groove on the guide rail 504, the lever 610 needs to be pressed down with a finger. The latch body 601 deforms, causing the latch hook 602 to descend, and the PCB board 100 is smoothly pushed into the chassis housing 500. After the PCB board 100 is pushed all the way in and the gold fingers 101 are inserted into the gold finger socket 200, the lever 610 is then lifted upwards to raise the latch hook 602, which hooks into the notch 106 at the bottom of the PCB board 100, thus completing the fixation.

[0026] like Figure 12 and Figure 13 As shown, the latch body 601 has an elastic buffer 506 on its side. When the latch hook 602 is inserted into the notch 106, the elastic buffer 506 is located between the latch hook 602 and the notch 106. Due to the possibility of processing and assembly errors in structural components, the elastic buffer 506 made of silicone material ensures that the gold fingers 101 of the PCB board 100 are securely inserted into the gold finger socket 200 even if the part size is too large or too small.

[0027] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, without departing from the spirit and technical essence of the invention. Therefore, any simple modifications, equivalent substitutions, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the scope of protection of the present invention.

Claims

1. A server case capable of realizing self-locking of PCB card plate, the server case is used for audio and video transmission, characterized in that, The system includes a PCB board (100), a chassis housing (500), and a locking assembly (600). The chassis housing (500) has internal guide rails (504) for assisting in the insertion and removal of the PCB board (100). A gold finger socket (200) is located at the rear end of the chassis housing (500), and gold fingers (101) are located at the rear end of the PCB board (100). The locking assembly (600) is located at the front end of the chassis housing (500). 0) The latch assembly (600) is set on the side of the PCB board (100) along the insertion and removal direction of the PCB board (100), or the latch assembly (600) is set at the bottom of the guide rail (504); when the gold finger (101) is inserted into the gold finger socket (200), the latch assembly (600) is moved so that the PCB board (100) is connected and fixed to the guide rail (504) through the latch assembly (600) so as to realize the self-locking of the PCB board (100) in the chassis housing (500); The latch assembly (600) includes a latch body (601), which adopts an elastic metal sheet structure. When the PCB board (100) is self-locked in the chassis housing (500), the latch body (601) is connected and fixed to the PCB board (100) and the guide rail (504) respectively. The front end of the PCB board (100) is provided with an elongated hole (102) and a first connecting hole (103); the upper part of the latch body (601) is provided with a latch hook (602), and the lower part of the latch body (601) is provided with a second connecting hole (604) corresponding to the first connecting hole (103). A screw post (605) is riveted in the second connecting hole (604), and a screw (606) is screwed into the screw post (605) and the first connecting hole (103) to realize the rotatable connection between the latch body (601) and the PCB board (100); when the gold finger (101) is inserted into the gold finger socket (200), the latch body (601) is rotated left and right, the latch hook (602) is inserted into the elongated hole (102), and the bottom of the latch body (601) is inserted into the guide rail (504) to realize the self-locking of the PCB board (100).

2. The server case capable of realizing self-locking of a PCB card plate according to claim 1, characterized in that, A spring washer (607) and a first flat washer (608) are provided between the screw (606) and the PCB board (100), and a second flat washer (609) is provided between the latch body (601) and the PCB board (100).

3. The server case capable of realizing self-locking of a PCB card plate according to claim 1, characterized in that, The latch body (601) is provided with a limiting plate (603) on the side. When the PCB board (100) is locked, the limiting plate (603) abuts against the side of the PCB board (100).

4. The server chassis with PCB self-locking capability according to claim 1, characterized in that, The front end of the PCB board (100) is provided with a first connection hole (103); the side of the latch body (601) is provided with a latch hook (602), and the end of the latch body (601) is provided with a second connection hole (604) corresponding to the first connection hole (103). Screws (606) are screwed into the second connection hole (604) and the first connection hole (103), and the screws (606) are tightened by the patch nut (612) to realize the rotatable connection between the latch body (601) and the PCB board (100); when the gold finger (101) is inserted into the gold finger socket (200), the latch body (601) is rotated up and down, and the latch hook (602) is inserted into the guide rail (504) to realize the self-locking of the PCB board (100).

5. The server chassis with PCB self-locking capability according to claim 4, characterized in that, The front end of the PCB board (100) is provided with an upper limit hole (104) and a lower limit hole (105). The latch body (601) is provided with a limiting protrusion (611), which is located above the latch hook (602). When the PCB board (100) is in the locked state, the limiting protrusion (611) is inserted into the lower limit hole (105). When the PCB board (100) is in the unlocked state, the limiting protrusion (611) is inserted into the upper limit hole (104).

6. The server chassis with PCB self-locking capability according to claim 1 or 4, characterized in that, The guide rail (504) is provided with a locking limit hole (505), and an elastic buffer (506) is provided in the locking limit hole (505); when the PCB board (100) is in the locked state, the locking assembly (600) is inserted into the locking limit hole (505).

7. The server chassis with PCB self-locking capability according to claim 1, characterized in that, The PCB board (100) has a notch (106) at the bottom. One end of the latch body (601) has a latch hook (602), and the other end of the latch body (601) has a second connecting hole (604). The guide rail (504) has a mounting hole (507) corresponding to the second connecting hole (604). Screws (606) are screwed into the second connecting hole (604) and the mounting hole (507) to connect the latch body (601) with the guide rail (504). The latch hook (602) is located on the outer side of the end of the guide rail (504). When the gold finger (101) is inserted into the gold finger socket (200), the latch body (601) is lifted up, and the latch hook (602) is inserted into the notch (106) to achieve self-locking of the PCB board (100).

8. The server chassis with PCB self-locking capability according to claim 7, characterized in that, The side of the latch body (601) is provided with an elastic buffer (506). When the latch hook (602) is inserted into the notch (106), the elastic buffer (506) is located between the latch hook (602) and the notch (106).

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