Pluggable PCB (printed circuit board) card board

Abstract

The utility model discloses a drawing and inserting PCB card board, two side edges of the PCB card board are respectively provided with an elastic sheet assembly, and when the PCB card board is drawn and inserted along a guide groove of an equipment body, the elastic sheet assemblies generate elastic deformation in the guide groove so as to limit the PCB card board from shaking in the guide groove. The PCB clamping plate has the advantages of being compact in structure, small in size, convenient and fast to install, high in stability and the like, and overcomes the defects that a clamping plate in an existing device containing a movable pluggable PCB clamping plate collapses and shakes.

Description

Technical Field

[0006] ,

[0001] The utility model relates to the technical field of PCB boards, and particularly relates to a pluggable PCB card board. Background Art

[0002] The PCB card board needs to be inserted and removed inside the device. First, a guide rail / groove needs to be set inside the device. The PCB card board can work properly only when it is inserted along the guide rail / groove into the female connector inside the device. Since the female connector docked with the PCB card board is welded, there are certain position errors in the welding process. In addition, when the PCB card board is installed inside the device, there are assembly tolerances. When the guide rail / groove is installed inside the device, there are also assembly tolerances. Under the superposition of multiple tolerances, to ensure that the gold fingers of the PCB card board are accurately inserted into the female connector, enough clearance must be left between the PCB card board and the guide rail / groove to allow the PCB card board to have enough moving space to smoothly insert into the female connector, so as to eliminate all position / dimension errors, as Figure 1 shown. Therefore, the clearance must be reserved. After leaving the clearance, it is inevitable that the PCB card board will shake. The shaking will cause poor contact between the gold fingers of the PCB card board and the female connector, resulting in signal interruption. And the shaking will cause abnormal noise inside the device, with poor user experience. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a pluggable PCB card board with a compact structure, small size, convenient installation and high stability in view of the above problems of the prior art.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] A pluggable PCB card board, with elastic sheet components provided on both sides of the PCB card board. When the PCB card board is inserted and removed along the guide groove of the device body, the elastic sheet components generate elastic deformation in the guide groove to limit the shaking of the PCB card board in the guide groove.

[0006] As a further improvement of the utility model, the elastic sheet component includes integrally formed ear guards, the ear guards are in a "匚" - shaped structure to be connected and fixed to the side of the PCB card board; multiple inclined elastic feet are provided on the ear guards, and an arc - shaped bending part is provided at one end of the elastic feet far away from the ear guards, and the arc - shaped bending part abuts against the inner wall of the guide groove. When the PCB card board is inserted and removed along the guide groove of the device body, the elastic feet are deformed under pressure in the guide groove.

[0007] As a further improvement of the utility model, the stroke generated by the elastic feet under pressure is greater than the width of the clearance between the PCB card board and the guide groove.

[0008] As a further improvement of the present invention, the ear protector includes a first side, a second side and a third side; a first elastic foot is provided on the first side, a second elastic foot is provided on the second side, and a third elastic foot is provided on the third side; the arc-shaped bending portion on the first elastic foot, the arc-shaped bending portion on the second elastic foot and the arc-shaped bending portion on the third elastic foot are all bent toward the direction close to the side.

[0009] As a further improvement of the present invention, a soldering pad is provided on the side of the PCB card board, and the ear protector of the shrapnel assembly is fixed on the soldering pad by welding.

[0010] As a further improvement of the present invention, the spring components are symmetrically arranged on both sides of the PCB card.

[0011] As a further improvement of the present invention, the shrapnel assembly is made of beryllium copper.

[0012] Compared with the prior art, the advantages of the present invention are:

[0013] The utility model provides a PCB card for insertion and extraction, by providing spring assemblies on both sides of the PCB card. The elastic deformation of the spring assemblies is used to eliminate the gap between the PCB card and the guide groove. Then, the gold fingers of the PCB card cooperate with the female connector inside the device body, so that the PCB card forms a double fixed position inside the device body, achieving the purpose of both a tight fit of the PCB card without shaking and smooth insertion and extraction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the installation of a PCB card inside a device in the prior art;

[0015] Figure 2 This is a schematic diagram of the structural principle of the PCB card in a specific embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the insertion and displacement of a PCB card in a specific embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the structural principle of the spring assembly in a specific embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the structural principle of the spring element in another embodiment of the present invention;

[0019] Figure 6 This is a schematic diagram of the structural principle of the PCB card before it is drawn in according to a specific embodiment of the present invention;

[0020] Figure 7 This is a schematic diagram of the deformation of the side of the spring assembly in a specific embodiment of the present utility model;

[0021] Figure 8 This is a schematic diagram of the overall deformation of the spring assembly in a specific embodiment of the present utility model;

[0022] Figure 9 This is a schematic diagram of the structural principle after the PCB card is drawn in according to a specific embodiment of the present invention;

[0023] Figure 10 This is a schematic diagram of the structural principle after the PCB card is drawn into the device in a specific embodiment of the utility model;

[0024] Legend: 100, PCB card board; 101, gold finger; 102, soldering pad; 200, device body; 201, guide groove; 202, connector socket; 203, display screen; 300, spring assembly; 301, first side; 302, second side; 303, third side; 304, first spring foot; 305, second spring foot; 306, third spring foot; 307, arc-shaped bending part; 308, ear protector. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the scope of protection of the present invention is not limited thereby.

[0026] In the description of the present invention, it should be understood that the terms "side", "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] Example

[0029] like Figure 2 、 Figure 3 and Figure 10As shown in the figure, for the pluggable PCB card of the present utility model, elastic piece assemblies 300 are symmetrically arranged on both sides of the PCB card 100. When the PCB card 100 is inserted and removed along the guide groove 201 of the device body 200, the elastic piece assemblies 300 undergo elastic deformation in the guide groove 201 to limit the shaking of the PCB card 100 in the guide groove 201.

[0030] In this embodiment, by arranging elastic piece assemblies 300 on both sides of the PCB card 100, the elastic deformation of the elastic piece assemblies 300 is utilized to eliminate the gap between the PCB card 100 and the guide groove 201. Then, through the cooperation of the gold fingers 101 of the PCB card 100 and the female connector 202 inside the device body 200, the PCB card 100 forms a double fixed position inside the device body 200, achieving the purpose that the PCB card 100 is tightly fitted without shaking and does not affect the smoothness of insertion and removal.

[0031] As Figure 2 shown, the side of the PCB card 100 is provided with pads 102, and the elastic piece assemblies 300 are welded and fixed on the pads 102. The elastic piece assemblies 300 are made of beryllium copper. Beryllium copper has excellent elastic memory and can be bent and restored to its original state after the external force is removed.

[0032] In this embodiment, the specific position where the elastic piece assemblies 300 are placed on the side of the PCB card 100 can be determined according to the length of the guide groove 201, and basically placed at the starting end of the guide groove 201, just let the elastic piece assemblies 300 be completely immersed in the guide groove (as Figure 3 shown). By designing pads 102 at the corresponding positions on the side of the PCB card 100 and fixing them with solder, it is both stable and easy to achieve. In this way, the PCB card 100 forms two fixed positions. One is the tight fit and fixation of the gold fingers 101 and the female connector 202, and the other is the tight fit and fixation of the elastic piece assemblies 300 and the guide groove 201. The shaking of the PCB card 100 is restricted, and at the same time, due to the good elasticity of the elastic piece assemblies 300, it does not affect the smoothness of insertion and removal of the PCB card 100.

[0033] As Figure 4 and Figure 5 shown, the elastic piece assembly 300 includes integrally formed ear guards 308, and the ear guards 308 are in a "C" - shaped structure to be welded and fixed on the pads 102 on the side of the PCB card 100. The ear guards 308 are provided with a plurality of inclined elastic feet, and an arc - shaped bending portion 307 is provided at one end of the elastic feet far away from the ear guards 308, and the arc - shaped bending portion 307 abuts against the inner wall of the guide groove 201, as Figure 7 and Figure 8 shown. As Figure 6 and Figure 9As shown, when the PCB card board 100 is inserted and pulled along the guide groove 201 of the device body 200, the elastic foot is compressed and deformed in the guide groove 201.

[0034] Furthermore, the stroke generated by the compression of the elastic foot is greater than the gap width between the PCB card board 100 and the guide groove 201, so as to ensure close contact between the elastic element 300 and the guide groove 201, thereby ensuring the stability of the PCB card board 100.

[0035] like Figure 4 and Figure 5 As shown, the ear protector 308 includes a first side 301, a second side 302, and a third side 303. A first elastic foot 304 is provided on the first side 301, a second elastic foot 305 is provided on the second side 302, and a third elastic foot 306 is provided on the third side 303. The arcuate bend 307 on the first elastic foot 304, the arcuate bend 307 on the second elastic foot 305, and the arcuate bend 307 on the third elastic foot 306 are all bent toward the side. The first elastic foot 304, the second elastic foot 305, and the third elastic foot 306 correspond to the three surfaces of the PCB board 100 that contact the guide groove 201. After the spring clip assemblies 300 are provided on both sides of the PCB card board 100, there is no need to spend a lot of money to control the precision of each component. Even if there is a slight deviation, the PCB card board 100 can be smoothly inserted into the connector female socket 202 because the spring clip assemblies 300 provide a quantitative buffer, allowing the PCB card board 100 to have sufficient movement space, thereby greatly reducing manufacturing costs.

[0036] like Figure 6 and Figure 9 As shown, the PCB card board 100 carries two spring assemblies 300 made of beryllium copper on the left and right, which are inserted into the interior of the device body 200 along the guide groove 201, and the gold finger 101 is plugged into the connector socket 202 inside the device body 200. The spring assembly 300 at the starting end of the guide groove 201 is completely immersed. Since the spring assembly 300 is provided with spring feet in three directions, and the downward stroke of the spring feet is greater than the gap between the PCB card board 100 and the guide groove 201, the deformation caused by the spring feet completely eliminates the gap. Since there is a spring assembly 300 on each of the left and right sides of the PCB card board 100, the gaps in the four directions of up, down, left and right of the PCB card board 100 are eliminated at the same time. In this way, there will be no shaking after the PCB card board 100 is inserted. Finally, it is formed as shown below. Figure 10 The complete device shown.

[0037] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A PCB card board, characterized in that: Both sides of the PCB card (100) are provided with spring assemblies (300); when the PCB card (100) is inserted or withdrawn along the guide groove (201) of the device body (200), the spring assemblies (300) are elastically deformed in the guide groove (201) to limit the PCB card (100) from shaking in the guide groove (201); The shrapnel assembly (300) comprises an integrally formed ear protector (308), the ear protector (308) being connected and fixed to the side of the PCB card (100); a plurality of inclined spring feet are provided on the ear protector (308), and an arc-shaped bending portion (307) is provided at one end of the spring foot away from the side, the arc-shaped bending portion (307) abuts against the inner wall of the guide groove (201), and when the PCB card (100) is inserted and pulled along the guide groove (201) of the device body (200), the spring feet are compressed and deformed in the guide groove (201).

2. The plug-in PCB card according to claim 1, characterized in that: The stroke generated by the elastic foot being pressed is greater than the width of the gap between the PCB card (100) and the guide groove (201).

3. The plug-in PCB card according to claim 2, characterized in that: The ear protector (308) comprises a first side (301), a second side (302) and a third side (303); a first elastic foot (304) is provided on the first side (301), a second elastic foot (305) is provided on the second side (302), and a third elastic foot (306) is provided on the third side (303); the arc-shaped bending portion (307) on the first elastic foot (304), the arc-shaped bending portion (307) on the second elastic foot (305) and the arc-shaped bending portion (307) on the third elastic foot (306) are all bent towards a direction close to the side.

4. The plug-in PCB card according to any one of claims 1 to 3, characterized in that: A soldering pad (102) is provided on the side of the PCB card (100), and the ear protector (308) of the shrapnel assembly (300) is fixed on the soldering pad (102) by welding.

5. The plug-in PCB card according to claim 4, characterized in that: The spring assembly (300) is symmetrically arranged on both sides of the PCB card (100).

6. The plug-in PCB card according to any one of claims 1 to 3, characterized in that: The shrapnel assembly (300) is made of beryllium copper.

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