Connecting structure of PCB (Printed Circuit Board) and board shell

Abstract

The utility model relates to a connecting structure of a PCB (printed circuit board) and a board shell, which belongs to the technical field of electronic equipment and comprises a shell, the PCB is placed on the inner bottom wall of the shell, a positioning groove penetrating through the PCB is arranged on the PCB, a positioning block penetrating through the PCB through the positioning groove is fixed on the inner bottom wall of the shell, and the positioning block is fixed on the inner bottom wall of the shell. The top of the positioning block is provided with a stabilizing assembly which penetrates through the PCB, extends into the bottom wall of the shell and can guarantee the connection stability. According to the connecting structure of the PCB and the plate shell, through cooperation of the supporting part and the stabilizing part, the stability of overall connection can be effectively improved, the connecting force can still be guaranteed after multiple times of installation, and therefore a good and stable working environment is better provided for the PCB, and through cooperation of the positioning block and the stabilizing assembly, the stability of the PCB is improved. Stable supporting force is provided for the stabilizing assembly through the positioning block, then the positioning pin on the stabilizing assembly is matched with the shell, it can be guaranteed that the PCB is stably fixed, and it is guaranteed that good stability is still achieved after repeated installation.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field, concretely is a kind of connection structure of PCB board and board shell. BACKGROUND

[0002] PCB board connection structure can provide the electrical connection of set, reduce the possible piece of connection gap and slack, to improve the stability and reliability of circuit, can better protect circuit from outside interference and damage, the connection stability between PCB board and board shell can affect the normal work of PCB board.

[0003] In the normal use of PCB board, it needs to be grounded to ensure its continuous and stable work, current and signal in electronic equipment can generate electromagnetic field, possibly interfere with the normal operation of other circuits and equipment, by effective grounding design, a low impedance loop can be formed on PCB board, to reduce electromagnetic radiation and received interference.

[0004] But the grounding of this connection structure is not convenient enough, it needs to specially design grounding position to effectively ground it, actual use is not convenient enough, so a kind of connection structure of PCB board and board shell is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of prior art, the utility model provides a kind of connection structure of PCB board and board shell, with the advantages of easy grounding, solve the problem of inconvenient grounding of connection structure.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of connection structure of PCB board and board shell, including shell, the inner bottom wall of the shell is placed with insulating pad, the inner side of the insulating pad is placed with PCB board, two positioning slots passing through PCB board are set on the PCB board, the inner bottom wall of the shell is fixed with two positioning blocks respectively passing through two positioning slots and passing through PCB board, the top of the shell is equipped with two stable components passing through PCB board and extending to shell and can guarantee the stability of connection, the top of the stable component has anti-pulling cover, the top of the shell is fixed with top cover, the left and right sides of the top cover are respectively with two stable components abutment;

[0007] Each stable component includes positioning pin passing through PCB board and extending to the inner bottom wall of shell, the top wall of the positioning pin is abutted with protective shell, the inner bottom wall of the protective shell and the right side of the positioning block are fixed with mounting block, the outer surface of the positioning pin is sleeved with chrysanthemum washer, the bottom of the chrysanthemum washer is attached with the top of PCB board.

[0008] Further, the left side of the shell is fixed with limit shell, the bottom of the limit shell is concave, the positioning pin extends to the concave place of limit shell.

[0009] Further, the inner bottom wall of the shell is provided with a stable groove, the PCB is provided with a stable hole penetrating the PCB, the stable groove and the stable hole are located at the same axis, and the positioning pin penetrates the stable hole and extends into the stable groove.

[0010] Further, the front and rear side walls of the inner cavity of the protective shell are fixed with cross beams, the bottom of the anti-pulling cover is fixed with two limiting blocks, and the two limiting blocks are respectively in abutment with the two cross beams.

[0011] Further, the right side wall of the protective shell is provided with a communication groove, and the communication groove is in communication with the inner cavity of the protective shell.

[0012] Further, the inner bottom wall of the protective shell is provided with a mounting hole penetrating the protective shell, and the mounting hole is flush with the inner side wall of the mounting block.

[0013] Further, the front and rear sides of the protective shell and above the shell are fixed with ear plates, the two ear plates extend to the top of the shell and abut the top of the shell.

[0014] Further, the top of the mounting block and the anti-pulling cover are provided with threaded holes, and the two threaded holes are coaxial.

[0015] Compared with the prior art, the technical scheme has the following beneficial effects:

[0016] The connecting structure of the PCB and the plate shell can quickly and conveniently position the protective shell, and can realize relatively good stability effect in cooperation with the ear plate, is not easy to shake in actual use, and has simple and reasonable structure cooperation, the positioning pin can also be conveniently grounded, without the need for separately designing a grounding structure, the connecting structure of the PCB and the plate shell is convenient to use, good in stability, convenient for grounding, and can effectively block glue. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a connection relationship diagram of the shell and the protective shell of the utility model;

[0019] Figure 3 It is a perspective view of the connection relationship of the PCB and the positioning block of the utility model.

[0020] In the drawing: 1 shell, 2 PCB, 3 positioning block, 4 stable assembly, 401 protective shell, 402 positioning pin, 403 mounting block, 404 daisy washer, 5 insulating pad, 6 anti-pulling cover, 7 top cover. DETAILED DESCRIPTION

[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Please refer to Figure 1 The connecting structure of the PCB and the shell in the embodiment comprises an outer shell 1, an insulating pad 5 is placed on the inner bottom wall of the outer shell 1, a PCB 2 is placed on the inner side of the insulating pad 5, two positioning grooves penetrating through the PCB 2 are formed on the PCB 2, the stability of the PCB 2 can be effectively improved by cooperation of the positioning blocks 3 and the positioning grooves, two positioning blocks 3 penetrating through the PCB 2 through the two positioning grooves are fixed on the inner bottom wall of the outer shell 1, two stable assemblies 4 penetrating through the PCB 2 and extending to the inner bottom wall of the outer shell 1 and capable of ensuring the connection stability are arranged on the top of the outer shell 1, a pull-resistant cover 6 is arranged on the top of the stable assembly 4, a top cover 7 is fixed on the top of the outer shell 1, and the left and right sides of the top cover 7 abut against the two stable assemblies 4 respectively.

[0023] In the embodiment, when in use, the PCB 2 is first placed on the inner bottom wall of the outer shell 1, then the PCB 2 is caused to abut against the positioning blocks 3, so that the PCB 2 can be effectively limited and prevented from sliding in the horizontal direction, and finally the connection stability can be further improved and grounding is facilitated by the stable assembly 4.

[0024] Please refer to Figure 1 and Figures 2 to 3 In order to ensure good stability and facilitate grounding, the stable assembly 4 in the embodiment comprises a positioning pin 402 penetrating through the PCB 2 and extending to the inner bottom wall of the outer shell 1, the positioning pin 402 can effectively prevent the PCB 2 from sliding horizontally relative to the outer shell 1, and the positioning pin 402 is in a protruding shape above the PCB 2, so that the PCB 2 above can be abutted against, thereby further improving the stability of the PCB 2, a protective shell 401 abuts against the top wall of the positioning pin 402, an installation block 403 is fixed on the inner bottom wall of the protective shell 401 and located on the right side of the positioning block 3, the installation block 403 facilitates installation of the protective shell 401 and other structures, a chrysanthemum gasket 404 is sleeved on the outer surface of the positioning pin 402, and the bottom of the chrysanthemum gasket 404 is attached to the top of the PCB 2.

[0025] It can be known that the left side of the shell 1 is fixed with a limiting shell, the bottom of the limiting shell is concave, the positioning pin 402 extends into the concave part of the limiting shell, the concave part cooperates with the positioning pin 402, which can make the positioning pin 402 stable, thereby indirectly improving the reliability of the connection between the PCB board 2 and the shell 1. The inner bottom wall of the shell 1 is provided with a stable groove, and the PCB board 2 is provided with a stable hole penetrating the PCB board 2. The stable groove and the stable hole are located at the same axis, and the positioning pin 402 penetrates the stable hole and extends into the stable groove.

[0026] In addition, the front and rear side walls of the inner cavity of the protective shell 401 are fixed with cross beams, which can provide good limiting effect. The bottom of the anti-pulling cover 6 is fixed with two limiting blocks, which respectively abut against the two cross beams. The right side wall of the protective shell 401 is provided with a communication groove, which communicates with the inner cavity of the protective shell 401. The inner bottom wall of the protective shell 401 is provided with a mounting hole penetrating the protective shell 401. The mounting hole cooperates with the mounting block 403, which can facilitate the installation of the stabilizing assembly 4 and other structures. The mounting hole and the inner side wall of the mounting block 403 are flush. The front and rear sides of the protective shell 401 and above the shell 1 are fixed with ear plates. The two ear plates extend to the top of the shell 1 and abut against the top of the shell 1. In actual use, the two ear plates can provide sufficient support force, cooperate with the limiting effect of the positioning pin 402, and improve the stability of the installed stabilizing assembly 4. The top of the mounting block 403 and the anti-pulling cover 6 are provided with threaded holes. The two threaded holes are coaxial. During installation, only bolts need to pass through the two threaded holes, cooperate with the protective shell 401 and the cross beam to limit the anti-pulling cover 6, and can effectively ensure the stability of the anti-pulling cover 6, and smoothly fix the anti-pulling cover 6 on the protective shell 401.

[0027] In the embodiment, during installation, the positioning pin 402 is inserted into the inner bottom wall of the shell 1 through the PCB board 2. The positioning pin 402 is limited at this time. Directly aligning the limiting shell on the protective shell 401 with the positioning pin 402 can complete the installation. Under the joint action of the positioning pin 402 and the ear plate, the overall stability can be effectively improved. At the same time, the positioning pin 402 also plays a grounding role.

[0028] It can be understood that the structure effectively limits the PCB board 2 through the positioning block 3 and the stabilizing assembly 4, and the stabilizing assembly 4 is convenient to install. The positioning pin 402 and the ear plate can effectively limit it. The connection structure has good glue blocking effect and convenient grounding.

[0029] The working principle of the above embodiment is as follows:

[0030] When fixing, the PCB board 2 is placed into the shell 1, the positioning pin 402 is inserted into the inner top wall of the shell 1 through the PCB board 2, the stable assembly 4 is placed on the positioning block 3, and the inner recess is aligned with the positioning pin 402, so that the installation is completed, and the two ear plates abut against the top of the shell 1 at this time, the structure is convenient for grounding, can effectively prevent glue, and has good stability.

[0031] It should be noted that, in this document, the terms such as first and second are used merely to distinguish one entity or action from another, and do not necessarily require or imply that these entities or actions exist in any actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "including a" does not exclude the existence of other identical elements in the process, method, article or equipment including the element.

[0032] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model.

Claims

1. A PCB and board shell connecting structure comprising a shell (1), characterized in that: The inner bottom wall of the shell (1) is provided with an insulating pad (5), the inner side of the insulating pad (5) is provided with a PCB board (2), the PCB board (2) is provided with two positioning grooves penetrating the PCB board (2), the inner bottom wall of the shell (1) is fixed with two positioning blocks (3) penetrating the PCB board (2) through the two positioning grooves respectively, the top of the shell (1) is provided with two stable assemblies (4) penetrating the PCB board (2) and extending into the shell (1) and capable of ensuring stable connection, the top of the stable assembly (4) is provided with a pull-resistant cover (6), the top of the shell (1) is fixed with a top cover (7), the left and right sides of the top cover (7) abut against the two stable assemblies (4) respectively. Each of the stable assemblies (4) comprises a positioning pin (402) penetrating the PCB board (2) and extending into the bottom wall of the shell (1), the top wall of the positioning pin (402) abuts against a protective shell (401), the inner bottom wall of the protective shell (401) and located at the right side of the positioning block (3) is fixed with a mounting block (403), the outer surface of the positioning pin (402) is sleeved with a chrysanthemum gasket (404), the bottom of the chrysanthemum gasket (404) is attached to the top of the PCB board (2).

2. The PCB and housing connection structure of claim 1, wherein: The left side of the shell (1) is fixed with a limiting shell, the bottom of the limiting shell is concave, and the positioning pin (402) extends into the concave part of the limiting shell.

3. The PCB and housing connection structure of claim 1, wherein: The inner bottom wall of the shell (1) is provided with a stable groove, the PCB board (2) is provided with a stable hole penetrating the PCB board (2), the stable groove and the stable hole are located at the same axis, and the positioning pin (402) penetrates the stable hole and extends into the stable groove.

4. The PCB and housing connection structure of claim 1, wherein: The front and rear side walls of the inner cavity of the protective shell (401) are fixed with cross beams, the bottom of the pull-resistant cover (6) is fixed with two limiting blocks, and the two limiting blocks abut against the two cross beams respectively.

5. The PCB and housing connection structure of claim 1, wherein: The right side wall of the protective shell (401) is provided with a communication groove, and the communication groove communicates with the inner cavity of the protective shell (401).

6. The PCB and housing connection structure of claim 1, wherein: The inner bottom wall of the protective shell (401) is provided with a mounting hole penetrating the protective shell (401), and the inner side wall of the mounting hole is flush with the inner side wall of the mounting block (403).

7. The PCB and housing connection structure of claim 1, wherein: The front and rear sides of the protective shell (401) and located above the shell (1) are fixed with ear plates, and the two ear plates extend to the top of the shell (1) and abut against the top of the shell (1).

8. The PCB and housing connection structure of claim 1, wherein: Threaded holes are formed in the top of the mounting block (403) and the pull-resistant cover (6), and the two threaded holes are coaxial.

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