Corrosion-resistant power supply circuit board

Abstract

The utility model discloses a corrosion-resistant power supply circuit board, which belongs to the technical field of circuit boards and comprises a power supply circuit board body, a shell, a top cover, supporting legs and a fan. The supporting legs are fixed to the bottom of the shell, the top cover covers the top of the shell, and grating holes are formed in the top cover; the power supply circuit board body is located in the shell, gaps are formed between the power supply circuit board body and the top cover and between the power supply circuit board body and the inner wall of the shell, the fan is installed at the bottom in the shell, and filter holes are formed in the bottom of the shell. According to the utility model, the problem of poor corrosion resistance of the existing power supply circuit board is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit boards, and more specifically, to a corrosion-resistant power supply circuit board. Background Art

[0002] Circuit board, also known as circuit board, makes circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. Circuit board can be called printed circuit board or printed circuit board. Circuit board can be divided into three major categories according to the number of layers: single-sided board, double-sided board and multi-layer circuit board.

[0003] Affected by the use environment, the power circuit board is sometimes placed in a humid environment, and the existing power circuit board has poor corrosion resistance. When used in a humid environment or water seeps in, it will be corroded, thereby affecting the service life of the power circuit board. In view of this, the utility model provides a new type of corrosion-resistant power circuit board. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a corrosion-resistant power circuit board, which solves the problem that the existing power circuit board has poor corrosion resistance.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A corrosion-resistant power circuit board comprises a power circuit board body, a shell, a top cover, legs and a fan;

[0007] The legs are fixed to the bottom of the shell, the top cover is arranged on the top of the shell, and the top cover is provided with grille holes;

[0008] The power circuit board body is located in the shell and is spaced apart from the top cover and the inner wall of the shell. The fan is installed at the bottom of the shell, and a filter hole is provided at the bottom of the shell.

[0009] Further preferably, a plug post is arranged in the shell, a sleeve is fixed to the bottom of the top cover, the lower end of the plug post is fixed to the bottom of the shell, and the upper end is inserted in the sleeve;

[0010] A support block for supporting the power circuit board body upward is fixed on the plug post. A plug hole matching the plug post is provided on the power circuit board body. The power circuit board body is located between the support block and the sleeve.

[0011] It is further preferred that: at least two of the plug posts and at least two of the sleeves are provided.

[0012] It is further preferred that: the shell and the power circuit board body are both rectangular in top view, four of the plug posts and four of the sleeves are provided, the four plug posts and the four sleeves are located in one-to-one correspondence and are respectively located at four angles of the power circuit board body.

[0013] It is further preferred that: a guide plate is provided between the top cover and the power circuit board body.

[0014] It is further preferred that: the guide plate comprises a first guide plate and a second guide plate, and the second guide plate is located below the first guide plate;

[0015] The first guide plate and the second guide plate each include an inclined plate and a vertical plate, and the vertical plates of the first guide plate and the second guide plate are respectively located at two opposite sides of the interior of the housing;

[0016] The vertical plate is fixed on the outer surface of the sleeve, one end of the inclined plate is fixed to the vertical plate, and the other end extends upward toward the middle of the top cover.

[0017] It is further preferred that a desiccant is placed above the inclined plate.

[0018] More preferably, the top cover and the shell are fixed by screws.

[0019] More preferably, a plurality of filter holes are provided.

[0020] In summary, the utility model has the following beneficial effects: the setting of the guide plate allows the outside wind to fully stay around the power circuit board body after entering through the filter hole, so that the heat of the power circuit board body can be brought out of the shell through the grille holes by the airflow. In addition, once water infiltration occurs, it will also be gathered between the vertical plate and the inclined plate of the guide plate, and will not immediately corrode the power circuit board body. Moreover, the shell is raised by the legs, which is not easy to contact with corrosive substances such as water, and the power circuit board body can be effectively protected. Therefore, the power circuit board has good corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment, which is mainly used to reflect the structure of a power circuit board;

[0022] Figure 2 is a cross-sectional schematic diagram of an embodiment, mainly used to illustrate the internal structure of the housing;

[0023] Figure 3 It is a structural schematic diagram of an embodiment, which is mainly used to reflect the internal structure of the housing;

[0024] Figure 4 It is a structural schematic diagram of an embodiment, mainly used to illustrate the structure of the top cover.

[0025] In the figure, 1, shell; 2, mounting hole; 3, support leg; 4, top cover; 5, grille hole; 6, first guide plate; 7, filter hole; 8, fan; 9, power circuit board body; 10, plug column; 11, support block; 12, sleeve; 13, second guide plate; 14, desiccant. DETAILED DESCRIPTION

[0026] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment: A corrosion-resistant power circuit board, such as Figure 1-4 As shown, it includes a power circuit board body 9, a shell 1, a top cover 4, legs 3 and a fan 8. The shell 1 and the power circuit board body 9 are both rectangular in top view, and there are four legs 3, which are respectively fixed at four angles at the bottom of the shell 1. The top cover 4 is set on the top of the shell 1, and the top cover 4 and the shell 1 are fixed by screws. Specifically, the top cover 4 and the shell 1 are both provided with mounting holes 2, and the screws are installed in the mounting holes 2. The top cover 4 is provided with grille holes 5 for ventilation and heat dissipation. The power circuit board body 9 is located in the shell 1 and is spaced from the top cover 4 and the inner wall of the shell 1, that is, the power circuit board body 9 is suspended in the shell 1 and does not contact the top cover 4 and the inner wall of the shell 1, so as to facilitate the heat dissipation of the power circuit board body 9. In order to speed up air circulation, facilitate heat dissipation and keep the inside of the shell 1 dry, the utility model is provided with a fan 8, which is installed at the bottom of the shell 1, and a filter hole 7 is provided at the bottom of the shell 1, and a plurality of filter holes 7 are provided, so that the outside air can enter the shell 1 through the filter hole 7.

[0028] Preferably, a plug post 10 is provided in the housing 1, a sleeve 12 is fixed at the bottom of the top cover 4, the lower end of the plug post 10 is fixed to the bottom of the housing 1, and the upper end is inserted in the sleeve 12 and contacts the bottom of the top cover 4. A support block 11 for supporting the power circuit board body 9 upward is fixed on the plug post 10, and a socket matching the plug post 10 is provided on the power circuit board body 9. The power circuit board body 9 is passed through the plug post 10 and sandwiched between the support block 11 and the sleeve 12, so that the power circuit board body 9 is limited in the housing 1.

[0029] Preferably, at least two plugs 10 and sleeves 12 are provided. In order to improve the installation stability of the power circuit board body 9, specifically, four plugs 10 and four sleeves 12 are provided, and the four plugs 10 and the four sleeves 12 correspond to each other and are respectively located at the four angles of the power circuit board body 9.

[0030] Preferably, a guide plate for water seepage diversion and wind diversion is provided between the top cover 4 and the power circuit board body 9. The guide plate includes a first guide plate 6 and a second guide plate 13, and the second guide plate 13 is located below the first guide plate 6. The first guide plate 6 and the second guide plate 13 both include an inclined plate and a vertical plate, and the vertical plates of the first guide plate 6 and the second guide plate 13 are respectively located on opposite sides of the inside of the shell 1. The vertical plate is fixed to the outer surface of the sleeve 12, one end of the inclined plate is fixed to the vertical plate, and the other end extends upward toward the middle of the top cover 4. The upper end of the vertical plate of the second guide plate 13 is located between the upper end and the lower end of the vertical plate of the first guide plate 6 and close to the upper end to prevent external water from penetrating through the grille hole 5 and contacting the power circuit board body 9. The inclined plate and the vertical plate are both in contact with the inner wall of the shell 1. In order to keep the inside of the shell 1 dry, a desiccant 14 can also be placed above the inclined plate.

[0031] When installing the power circuit board body 9, just align the perforation on the power circuit board body 9 with the plug 10, then cover the top cover 4, screw on the top cover 4, and use it simply and conveniently. The power circuit board body 9 is limited in the housing 1 by the plug 10, the support block 11 and the sleeve 12, and is firmly positioned without displacement and shaking. The setting of the guide plate allows the external wind to fully stay around the power circuit board body 9 after entering through the filter hole 7, so that the heat of the power circuit board body 9 can be taken out of the housing 1 through the grille hole 5 through the airflow. In addition, once water infiltration occurs, it will also be collected between the vertical plate and the inclined plate of the guide plate, and will not immediately erode the power circuit board body 9. The housing 1 is raised by the legs 3, and is not easy to contact with corrosive substances such as water, which can effectively protect the power circuit board body 9.

[0032] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A corrosion-resistant power circuit board, comprising a power circuit board body (9), characterized in that: It also includes a housing (1), a top cover (4), legs (3) and a fan (8); The supporting legs (3) are fixed to the bottom of the shell (1), the top cover (4) is arranged on the top of the shell (1), and the top cover (4) is provided with grille holes (5); The power circuit board body (9) is located in the shell (1) and is spaced apart from the top cover (4) and the inner wall of the shell (1). The fan (8) is installed at the bottom of the shell (1). A filter hole (7) is provided at the bottom of the shell (1).

2. The corrosion-resistant power circuit board according to claim 1, characterized in that: The shell (1) is provided with an insertion column (10), the bottom of the top cover (4) is fixed with a sleeve (12), the lower end of the insertion column (10) is fixed to the bottom of the shell (1), and the upper end is inserted into the sleeve (12); A support block (11) for supporting the power circuit board body (9) upward is fixed on the plug post (10); a socket matched with the plug post (10) is provided on the power circuit board body (9); and the power circuit board body (9) is located between the support block (11) and the sleeve (12).

3. The corrosion-resistant power circuit board according to claim 2, characterized in that: At least two of the plug posts (10) and the sleeves (12) are provided.

4. The corrosion-resistant power circuit board according to claim 3, characterized in that: The shell (1) and the power circuit board body (9) are both rectangular in top view, and four of the plug posts (10) and four of the sleeves (12) are provided. The four plug posts (10) and the four sleeves (12) are located in one-to-one correspondence and are respectively located at four angles of the power circuit board body (9).

5. The corrosion-resistant power circuit board according to claim 3, characterized in that: A guide plate is provided between the top cover (4) and the power circuit board body (9).

6. The corrosion-resistant power circuit board according to claim 5, characterized in that: The guide plate comprises a first guide plate (6) and a second guide plate (13), wherein the second guide plate (13) is located below the first guide plate (6); The first guide plate (6) and the second guide plate (13) both comprise an inclined plate and a vertical plate, and the vertical plates of the first guide plate (6) and the second guide plate (13) are respectively located on two opposite sides of the interior of the housing (1); The vertical plate is fixed to the outer surface of the sleeve (12); one end of the inclined plate is fixed to the vertical plate, and the other end extends upward toward the middle of the top cover (4).

7. The corrosion-resistant power circuit board according to claim 6, characterized in that: A desiccant (14) is placed above the inclined plate.

8. The corrosion-resistant power circuit board according to claim 1, characterized in that: The top cover (4) and the shell (1) are fixed by screws.

9. The corrosion-resistant power circuit board according to claim 1, characterized in that: The filter holes (7) are provided in plurality.

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