CN202308609U - Lock catch structure - Google Patents

Abstract

A lock catch structure is used for fixing a secondary circuit board on a primary circuit board. One end of the secondary circuit board is positioned on the primary circuit board, and the other end of the secondary circuit board is provided with at least one positioning hole. The lock catch structure comprises an operation portion and at least one locking piece, the locking piece comprises an elastic portion an a clamping portion, the elastic portion is fixed on the primary circuit board, and the clamping portion extends towards the direction far away from the primary circuit board from the elastic portion and is matched with the positioning hole of the secondary circuit board so that the secondary circuit board is clamped on the locking piece. The operation portion is connected to the elastic portion so as to drive the elastic portion to perform elastic deformation and enables the clamping portion to quit out of the positioning hole. The lock catch structure is simple and convenient to assemble, one-piece type design is adopted, costs for die development can be reduced, and product costs are reduced.

Description

Lock structure

technical field

The utility model relates to a locking structure of a wireless network card.

Background technique

In the prior art, a two-piece metal sheet is usually used to lock the sub-circuit board, such as a wireless network card, to the main circuit board, or a stud is provided on the main circuit board, and the sub-circuit board is fixed to the main circuit board by screws. Using two-piece metal sheets to fix the wireless network card has a complex structure and increases the cost of the product. Using screws to fix the wireless network card requires tools to install the studs and tighten the screws to fix the sub-circuit board, which brings inconvenience to the assembly.

Utility model content

In view of this, it is necessary to provide a locking structure for the sub-circuit board, which adopts a one-piece design. At the same time, the sub-circuit board can be fixed to the main circuit board manually, which is convenient for assembly and saves costs.

The locking structure provided by the utility model is used for fixing the sub-circuit board to the main circuit board. One end of the sub-circuit board is positioned on the main circuit board, and the other end is provided with at least one positioning hole. The locking structure includes an operating portion and at least one locking piece, and the locking piece includes an elastic portion and a buckle portion. The elastic part is fixed on the main circuit board. The locking portion extends from the elastic portion in a direction away from the main circuit board and cooperates with the positioning hole of the sub-circuit board to fasten the sub-circuit board to the locking member. The operating part is connected to the elastic part, so as to drive the elastic part to elastically deform so that the buckle part withdraws from the positioning hole.

Preferably, the buckle part includes a positioning piece and a hook, the hook passes through the positioning hole to fix the sub-circuit board to the locking piece, the positioning piece is accommodated in the positioning hole and against the inner wall of the positioning hole.

Preferably, the buckle part further includes a support piece for supporting the sub-circuit board, and the support piece is located between the elastic part and the positioning piece.

Preferably, the elastic portion is bent and extended.

Preferably, the main circuit board includes a pair of positioning holes, and the locking structure includes a pair of locking pieces respectively matched with the positioning holes.

Preferably, the locking structure is an integral structure.

Compared with the prior art, the locking structure provided by the utility model is designed with a one-piece metal sheet. When fixing the sub-circuit board to the main circuit board, it is only necessary to align the positioning hole of the sub-circuit board with the locking buckle The buckle part of the structure, press the wireless network card to lock and position the sub-circuit board on the main circuit board. By pressing the operating part of the locking structure, the positioning between the sub-circuit board and the locking piece can be released. The assembly is simple and convenient, and the one-piece design can reduce the cost of mold development and reduce product costs.

Description of drawings

FIG. 1 is a schematic diagram of a wireless network card fixed on a main circuit board in a specific embodiment of the present invention.

FIG. 2 is a three-dimensional schematic diagram of the locking structure in FIG. 1 .

Fig. 3 is a schematic cross-sectional view along III-III direction in Fig. 1 .

FIG. 4 is a partially enlarged view of part IV of FIG. 1 .

FIG. 5 is a schematic diagram showing the status of releasing the positioning between the wireless network card and the locking structure in FIG. 1 .

Description of main component symbols

Lock structure 100

main circuit board 10

Connector 11

Locking piece 20

Elastic part 21

Buckle part 22

Support sheet 221

Hook 222

Positioning piece 223

Operation Department 23

Sub-board 30

Positioning hole 31

The following specific embodiments will further illustrate the utility model in conjunction with the above-mentioned accompanying drawings.

Detailed ways

Please refer to Figure 1. The locking structure 100 provided by the utility model is used for fixing the sub-circuit board 30 to the main circuit board 10 . One end of the sub-circuit board 30 is inserted into the connector 11 provided on the main circuit board 10 to realize electrical connection with the main circuit board 10 . The other end of the sub-circuit board 30 is provided with at least one positioning hole 31 for matching with the locking structure 100 so as to be positioned on the main circuit board 10 . In this embodiment, the sub-circuit board 30 is a wireless network card.

Please refer to Figure 2. The locking structure 100 includes an operating portion 23 and at least one locking member 20 . Each locking member 20 includes an elastic portion 21 and a locking portion 22 . The elastic part 21 is fixed to the main circuit board 10 by welding. The locking portion 22 extends from the elastic portion 21 toward the direction away from the main circuit board 10 and cooperates with the positioning hole 31 of the sub-circuit board 30 to fasten the sub-circuit board 30 to the locking member 20 . The operating portion 23 is connected to the elastic portion 21 of the at least one locking member 20 to drive the elastic portion 21 to elastically deform so that the locking portion 22 exits the positioning hole 31 .

In this embodiment, the locking structure 100 includes a pair of locking pieces 20, and correspondingly, the sub-circuit board 30 includes a pair of positioning holes 31, which respectively cooperate with the locking pieces 20 to firmly secure the sub-circuit board 30. Positioned on the main circuit board 10 .

In this embodiment, the buckle portion 22 includes a support piece 221 , a hook 222 and a positioning piece 223 . The supporting piece 221 is located between the elastic portion 21 and the positioning piece 223 for supporting the sub-circuit board 30 . The positioning piece 223 is disposed between the hook 222 and the elastic portion 21 .

Please refer to Figure 3 and Figure 4 at the same time. During installation, the hook 222 is aligned with the positioning hole 31 of the sub-circuit board 30 . Press the sub-circuit board 30, so that the hook 222 passes through the positioning hole 31 of the sub-circuit board 30 and is fixed on the surface of the sub-circuit board 30, and the positioning piece 223 is accommodated in the positioning hole 31 of the sub-circuit board 30 and against Hold on the inner wall of the positioning hole 31 , the supporting piece 221 supports the sub-circuit board 30 , so as to position the sub-circuit board 30 on the main circuit board 10 .

Please refer to Figure 5. When the sub-circuit board 30 needs to be removed, press the operation part 23, the elastic part 21 is compressed and elastically deformed under the drive of the operation part 23, and the hook 222 withdraws from the positioning hole 31, thereby releasing the Positioning between the sub-circuit board 30 and the main circuit board 10 .

In this embodiment, the elastic portion 21 is bent and extended to enhance the elasticity of the elastic portion 21 . The locking structure 100 is made of metal sheet, and is integrally formed.

The locking structure provided by the utility model is designed with a one-piece metal sheet. When fixing the sub-circuit board to the main circuit board, it is only necessary to align the positioning hole of the sub-circuit board with the buckle part of the locking structure and press The sub-circuit board can lock and position the sub-circuit board on the main circuit board. By pressing the operating part of the locking structure, the positioning between the sub-circuit board and the locking piece can be released. The assembly is simple and convenient, and the one-piece design can reduce the cost of mold development and reduce product costs.

Claims (6)

1. A locking structure for fixing the sub-circuit board to the main circuit board, one end of the sub-circuit board is positioned on the main circuit board, and the opposite end is provided with at least one positioning hole, characterized in that, The locking structure includes an operating part and at least one locking member, the locking member includes an elastic part and a buckle part, the elastic part is fixed on the main circuit board, and the buckle part is away from the elastic part The direction of the main circuit board extends and cooperates with the positioning hole of the sub-circuit board to fasten the sub-circuit board to the locking member, and the operating part is connected to the elastic part to drive the elastic The elastic deformation of the buckle part causes the buckle part to withdraw from the positioning hole. 2. The lock structure according to claim 1, wherein the buckle part includes a positioning piece and a hook, and the hook passes through the positioning hole to fix the sub-circuit board on the As for the locking piece, the positioning piece is accommodated in the positioning hole and resisted against the inner wall of the positioning hole. 3. The locking structure according to claim 2, characterized in that, the buckling part further comprises a supporting piece supporting the sub-circuit board, and the supporting piece is located between the elastic part and the positioning piece . 4. The locking structure according to claim 1, wherein the elastic portion is bent and extended. 5 . The locking structure according to claim 1 , wherein the main circuit board comprises a pair of positioning holes, and the locking structure comprises a pair of locking pieces respectively matched with the positioning holes. 6. The locking structure according to claim 1, characterized in that, the locking structure is an integral structure.

Images