Dustproof circuit board convenient to maintain

Abstract

The utility model belongs to circuit board technical field especially relates to a dustproof circuit board convenient to maintain, including the lower shell that is equipped with the open upward containing cavity, the circuit board body that is located in the containing cavity, the upper cover that is hinged in the lower shell opening edge, the limit flange that is located in the upper cover close to the containing cavity one side edge, and the rotary mounting mechanism that rotates and connects the lower shell and the upper cover, when using, the circuit board body is installed in the containing cavity, the upper cover is turned down to cover in the lower shell, has the effect of dustproof, waterproof, protection, and the limit flang extends into the containing cavity and is pasted with the containing cavity inner wall, the structure is more compact, avoids the upper cover to shake and shift, when the circuit board needs maintenance and replacement when failure, directly opens the upper cover, the upper cover turns up and away from the containing cavity, need not to disassemble screw, maintenance and replacement are very convenient, and avoid the upper cover to separate and lose.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board technology, and in particular relates to a dustproof circuit board that is easy to maintain. Background Technology

[0002] A circuit board is a device that connects electronic components to form an electronic device with a specific function. Existing circuit boards are exposed to the air, and dust frequently enters during daily use. This dust accumulation is particularly severe on circuit boards used in outdoor electronic devices. Dust buildup on circuit boards not only affects the normal operation and efficiency of electrical components but can also cause short circuits, thus reducing the lifespan of both the circuit board and the electrical components.

[0003] Therefore, existing circuit boards are equipped with dustproof shells, with the circuit board body inside the dustproof shells, which have the functions of dustproof, waterproof and protective. However, for existing dustproof circuit boards, after the circuit board body is installed in the lower shell, the upper cover is closed on the lower shell. In order to prevent the upper cover from falling off and being lost, screws are used to fix it. When the circuit board fails and needs to be repaired or replaced, the screws need to be removed and the upper cover needs to be taken out, which is very inconvenient for repair and replacement. Summary of the Invention

[0004] The purpose of this invention is to provide a dustproof circuit board that is easy to maintain.

[0005] This utility model is achieved by the following technical solution: A dustproof circuit board that is easy to maintain, comprising: The lower shell has an upward-facing receiving cavity. The circuit board body is located inside the receiving cavity; The upper cover is hinged to the opening edge of the lower shell. The upper cover has a limiting flange on the side edge near the receiving cavity. The upper cover can be flipped downwards so that the limiting flange extends into the receiving cavity and is in contact with the inner wall of the receiving cavity, so as to cover the lower shell, or flipped upwards away from the receiving cavity. A rotating mounting mechanism is located between the lower shell and the upper cover, and is used to rotatably connect the lower shell and the upper cover.

[0006] As described above, for a dustproof circuit board that is easy to maintain, the rotating mounting mechanism includes: The first connecting hole is located on the side wall of the lower shell; The second connecting hole is located on the upper cover; The connecting hinge includes a first hinge and a second hinge that is hinged to the first hinge. The first hinge has a third connecting hole corresponding to the first connecting hole, and the second hinge has a fourth connecting hole corresponding to the second connecting hole. There are two connecting hinges, and the two connecting hinges are arranged along the length direction of the lower shell.

[0007] As described above, a dustproof circuit board that is easy to maintain has a mounting post inside the receiving cavity. One end of the mounting post is located at the bottom of the lower shell, and the other end is detachably connected to the circuit board body, so that the circuit board body is suspended in the receiving cavity. The circuit board body divides the receiving cavity into an upper cavity and a lower cavity that are connected.

[0008] As described above, a dustproof circuit board that is easy to maintain has a cooling fan on the upper cover and a first heat dissipation hole communicating with the lower cavity on the side wall of the lower shell. When the upper cover is flipped down to cover the lower shell, the cooling fan can blow outside air into the upper cavity and flow into the lower cavity through the gap between the circuit board body and the inner wall of the lower shell, and then discharge it from the first heat dissipation hole.

[0009] As described above, in a dustproof circuit board that is easy to maintain, the side wall of the lower shell is also provided with a second heat dissipation hole that communicates with the upper cavity. When the upper cover is flipped down to cover the lower shell, the cooling fan can blow outside air toward the upper surface of the circuit board body and carry away the heat from the upper surface of the circuit board body through the second heat dissipation hole.

[0010] As described above, in a dustproof circuit board that is easy to maintain, there are two cooling fans, which are arranged along the length of the upper cover.

[0011] As described above, in a dustproof circuit board that is easy to maintain, there are four mounting posts, which are arranged at the four corners of the circuit board body.

[0012] As described above, a dustproof circuit board that is easy to maintain has a fifth connecting hole at each of the four corners of the circuit board body, and a sixth connecting hole corresponding to the fifth connecting hole is provided on the mounting post.

[0013] As described above, a dustproof circuit board that is easy to maintain has a lower housing comprising a base plate and side plates surrounding the base plate, wherein the base plate and side plates are integrally formed.

[0014] As described above, a dustproof circuit board that is easy to maintain has a third heat dissipation hole arranged vertically on the side plate, and a plurality of the third heat dissipation holes are arranged along the length of the side plate.

[0015] Compared with the prior art, the present invention has the following advantages: This utility model provides a dustproof circuit board that is easy to maintain. It includes a lower shell with an upward-facing receiving cavity, a circuit board body disposed in the receiving cavity, an upper cover hinged to the edge of the opening of the lower shell, a limiting flange disposed on the side edge of the upper cover near the receiving cavity, and a rotating mounting mechanism that rotatably connects the lower shell and the upper cover. In use, the circuit board body is installed in the receiving cavity, and the upper cover is flipped down to cover the lower shell. It has the functions of dustproof, waterproof and protective. The limiting flange extends into the receiving cavity and is attached to the inner wall of the receiving cavity, making the structure more compact and preventing the upper cover from shaking or shifting. When the circuit board malfunctions and needs to be repaired or replaced, the upper cover can be opened directly and flipped up away from the receiving cavity without removing the screws. Repair and replacement are very convenient and the upper cover is prevented from falling off and being lost. In addition, the cavity of this application is provided with a mounting post. One end of the mounting post is located at the bottom of the lower shell, and the other end is detachably connected to the circuit board body, so that the circuit board body is suspended in the cavity. The circuit board body divides the cavity into an upper cavity and a lower cavity that are connected. The upper cover is provided with a cooling fan, and the side wall of the lower shell is provided with a first heat dissipation hole that communicates with the lower cavity. When the upper cover is flipped down and placed on the lower shell, the cooling fan can blow outside air into the upper cavity, take away the heat of the lower surface of the circuit board body, and flow through the gap between the circuit board body and the inner wall of the lower shell into the lower cavity, through the lower surface of the circuit board body, and out through the first heat dissipation hole, thus taking away the heat of the lower surface of the circuit board body. That is, heat dissipation is performed on the upper and lower surfaces of the circuit board body, and the heat dissipation effect is better. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the structure of a dustproof circuit board that is easy to maintain, as described in a specific embodiment of this utility model. Figure 2 This is a schematic diagram of the structure of a dustproof circuit board that is easy to maintain, as described in a specific embodiment of this utility model. Figure 3 This is a partially exploded structural diagram of the dustproof circuit board that is easy to maintain, according to a specific embodiment of this utility model. Figure 4 This is a cross-sectional view of a dustproof circuit board that is easy to maintain, as described in a specific embodiment of this utility model. Detailed Implementation To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of this utility model, unless they actually express the meaning of order according to the context, they should be understood as being used only for differentiation.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Specific embodiments, such as Figure 1-4 The dustproof circuit board shown is easy to maintain and includes: a lower shell 1 with an upward-facing receiving cavity 2; a circuit board body 3 disposed within the receiving cavity 2; an upper cover 4 hinged to the opening edge of the lower shell 1, wherein the upper cover 4 has a limiting flange 5 on one side edge near the receiving cavity 2, and the upper cover 4 can be flipped downwards so that the limiting flange 5 extends into the receiving cavity 2 and abuts against the inner wall of the receiving cavity 2 to cover the lower shell 1, or flipped upwards away from the receiving cavity 2; and a rotating mounting mechanism 6 disposed between the lower shell 1 and the upper cover 4 for rotatably connecting the lower shell 1 and the upper cover 4. In use, the circuit board body is installed in the receiving cavity, and the top cover is flipped down to cover the lower shell. It has the functions of dustproof, waterproof and protective. The limiting flange extends into the receiving cavity and is attached to the inner wall of the receiving cavity, making the structure more compact and preventing the top cover from shaking or shifting. When the circuit board malfunctions and needs to be repaired or replaced, the top cover can be opened directly and flipped up away from the receiving cavity without removing the screws. Repair and replacement are very convenient and prevent the top cover from falling off and being lost.

[0020] Specifically, the rotating mounting mechanism 6 includes: a first connecting hole 61 located on the side wall of the lower shell 1; a second connecting hole 62 located on the upper cover 4; and connecting hinges 63, including a first hinge 631 and a second hinge 632 hinged to the first hinge 631. The first hinge 631 has a third connecting hole 7 corresponding to the first connecting hole 61, and the second hinge 632 has a fourth connecting hole 8 corresponding to the second connecting hole 62. There are two connecting hinges 63, which are arranged along the length of the lower shell 1 and are fixed with screws, resulting in a stable structure.

[0021] In addition, the cavity 2 is provided with a mounting post 9. One end of the mounting post 9 is located at the bottom of the lower shell 1, and the other end is detachably connected to the circuit board body 3, so that the circuit board body 3 is suspended in the cavity 2. The circuit board body 3 divides the cavity 2 into an upper cavity 21 and a lower cavity 22 that are connected, thereby improving the heat dissipation effect.

[0022] Furthermore, the upper cover 4 is equipped with a cooling fan 10, and the side wall of the lower shell 1 is provided with a first heat dissipation hole 11 communicating with the lower cavity 22. When the upper cover 4 is flipped down to cover the lower shell 1, the cooling fan 10 can blow outside air into the upper cavity 21, and flow through the gap between the circuit board body 3 and the inner wall of the lower shell 1 into the lower cavity 22, and then discharge from the first heat dissipation hole 11. When the upper cover is flipped down to cover the lower shell, the cooling fan can blow outside air into the upper cavity, carrying away the heat from the lower surface of the circuit board body, and flowing through the gap between the circuit board body and the inner wall of the lower shell into the lower cavity, passing through the lower surface of the circuit board body, and dissipating from the first heat dissipation hole, thus carrying away the heat from the lower surface of the circuit board body. This achieves better heat dissipation for both the upper and lower surfaces of the circuit board body.

[0023] More specifically, the lower shell 1 is also provided with a second heat dissipation hole 12 communicating with the upper cavity 21 on its side wall. When the upper cover 4 is flipped down to cover the lower shell 1, the cooling fan 10 can blow outside air toward the upper surface of the circuit board body 3 and carry away the heat on the upper surface of the circuit board body 3 through the second heat dissipation hole 12, thereby further improving the heat dissipation effect.

[0024] Furthermore, there are two cooling fans 10, which are arranged along the length of the upper cover 4, resulting in higher heat dissipation performance.

[0025] Furthermore, to make the mounting structure more stable, there are four mounting columns 9, which are arranged at the four corners of the circuit board body 3.

[0026] Specifically, the circuit board body 3 has a fifth connecting hole 13 at each of its four corners, and the mounting post 9 has a sixth connecting hole 14 corresponding to the fifth connecting hole 13. The circuit board body 3 is connected with screws, allowing for detachable installation.

[0027] More specifically, the lower shell 1 includes a bottom plate 15 and side plates 16 surrounding the bottom plate 15. The bottom plate 15 and the side plates 16 are integrally formed, which improves production efficiency and reduces production costs.

[0028] In addition, in order to further improve the heat dissipation performance, the side plate 16 is provided with a third heat dissipation hole 17 arranged in the vertical direction, and a plurality of the third heat dissipation holes 17 are arranged along the length direction of the side plate 16.

[0029] The above description is one embodiment provided in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Furthermore, due to different industry naming conventions, it is not limited to the above names or English names. Any methods or structures similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the scope of protection of this utility model.

Claims

1. A dustproof circuit board that is easy to maintain, characterized in that, include: The lower shell (1) has an upward-facing receiving cavity (2). The circuit board body (3) is located inside the receiving cavity (2); The upper cover (4) is hinged to the opening edge of the lower shell (1). The upper cover (4) has a limiting flange (5) on one side edge near the receiving cavity (2). The upper cover (4) can be flipped downwards until the limiting flange (5) extends into the receiving cavity (2) and is attached to the inner wall of the receiving cavity (2) to cover the lower shell (1), or flipped upwards away from the receiving cavity (2). Rotary mounting mechanism (6) is located between the lower shell (1) and the upper cover (4) for rotatably connecting the lower shell (1) and the upper cover (4).

2. The dustproof circuit board for easy maintenance according to claim 1, characterized in that, The rotating mounting mechanism (6) includes: The first connecting hole (61) is located on the side wall of the lower shell (1); The second connecting hole (62) is provided on the upper cover (4); The connecting hinge (63) includes a first hinge (631) and a second hinge (632) hinged to the first hinge (631). The first hinge (631) is provided with a third connecting hole (7) corresponding to the first connecting hole (61), and the second hinge (632) is provided with a fourth connecting hole (8) corresponding to the second connecting hole (62). There are two connecting hinges (63), and the two connecting hinges (63) are arranged along the length direction of the lower shell (1).

3. The dustproof circuit board for easy maintenance according to claim 1, characterized in that, The cavity (2) is provided with a mounting post (9). One end of the mounting post (9) is located at the bottom of the lower shell (1), and the other end is detachably connected to the circuit board body (3) so that the circuit board body (3) is suspended in the cavity (2). The circuit board body (3) divides the cavity (2) into an upper cavity (21) and a lower cavity (22) that are connected.

4. The dustproof circuit board for easy maintenance according to claim 3, characterized in that, The upper cover (4) is provided with a cooling fan (10), and the side wall of the lower shell (1) is provided with a first heat dissipation hole (11) communicating with the lower cavity (22). When the upper cover (4) is flipped down to cover the lower shell (1), the cooling fan (10) can blow outside air into the upper cavity (21), and flow into the lower cavity (22) through the gap between the circuit board body (3) and the inner wall of the lower shell (1), and discharge from the first heat dissipation hole (11).

5. A dustproof circuit board for easy maintenance according to claim 4, characterized in that, The lower shell (1) is also provided with a second heat dissipation hole (12) communicating with the upper cavity (21). When the upper cover (4) is flipped down to cover the lower shell (1), the heat dissipation fan (10) can blow outside air to the upper surface of the circuit board body (3) and carry the heat of the upper surface of the circuit board body (3) out through the second heat dissipation hole (12).

6. A dustproof circuit board for easy maintenance according to claim 4, characterized in that, There are two cooling fans (10), and the two cooling fans (10) are arranged along the length of the upper cover (4).

7. A dustproof circuit board for easy maintenance according to claim 3, characterized in that, There are four mounting posts (9), which are arranged at the four corners of the circuit board body (3).

8. A dustproof circuit board for easy maintenance according to claim 7, characterized in that, The circuit board body (3) has a fifth connection hole (13) at each of its four corners, and the mounting post (9) has a sixth connection hole (14) corresponding to the fifth connection hole (13).

9. A dustproof circuit board for easy maintenance according to claim 1, characterized in that, The lower shell (1) includes a bottom plate (15) and a side plate (16) surrounding the bottom plate (15), the bottom plate (15) and the side plate (16) being integrally formed.

10. A dustproof circuit board for easy maintenance according to claim 9, characterized in that, The side plate (16) is provided with a third heat dissipation hole (17) arranged in the vertical direction, and a plurality of the third heat dissipation holes (17) are arranged along the length direction of the side plate (16).

Images