Dustproof and moistureproof device for power electronic component

Abstract

The utility model discloses a dustproof and moistureproof device for power electronic components, which belongs to the technical field of electronic components, aims at solving the problems that a box body cannot be disassembled, internal electronic components and a fan cannot be overhauled and a perforated plate cannot be replaced, and comprises a mounting bottom plate, a box body shell, a connecting mechanism, a dustproof and moistureproof mechanism and a fan, the box body shell is arranged above the mounting bottom plate, the box body shell is connected with the mounting bottom plate through the connecting mechanism, the dustproof and moistureproof mechanisms are symmetrically arranged on the two sides of the box body shell, and the fans are symmetrically and fixedly mounted on the two sides of the upper portion of the mounting bottom plate; according to the utility model, through the arrangement of the connecting mechanism, the box body shell and the mounting bottom plate can be quickly dismounted and mounted, internal electronic components can be conveniently overhauled and maintained, the practicability and convenience of the device are improved, and the service life of the electronic components is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic components, and in particular relates to a dust and moisture proof device for power electronic components. Background Art

[0002] Power electronic components are an important part of electronic equipment. During use, dust in the air will be adsorbed on the surface of communication electronic components, affecting the heat dissipation of communication electronic components and causing corrosion to the inside of power electronic components, resulting in malfunction of power electronic components. Currently, moisture-proof treatment devices are commonly used to remove dust and moisture-proof power electronic components.

[0003] The prior art discloses a dust and moisture proof device for power electronic components with patent announcement number CN217282682U. The above patent can automatically clean the filter and dry the porous plate, effectively ensuring ventilation efficiency, and does not require personnel to perform cleaning and drying work, thereby reducing manpower consumption. During operation, the device can automatically detect the temperature in the box and automatically turn on the fan after the temperature rises. The fan does not need to be used for ventilation at the same time, thereby reducing power consumption. The device is suitable for dust and moisture proof use of power electronic components. However, the following deficiencies still exist in actual use: from a practical point of view, when electronic components and fans fail, the box cannot be disassembled, and the internal electronic components and fans cannot be repaired, which affects the use of the device. Moreover, after long-term use, the porous plate absorbs moisture many times and then dries, and the adsorption function will be weakened, and the porous plate cannot be replaced, which affects the moisture-proof performance of the device.

[0004] Therefore, a dust and moisture proof device for power electronic components is needed to solve the problems in the prior art that the box cannot be disassembled, the internal electronic components and fans cannot be repaired, and the porous plate cannot be replaced. Utility Model Content

[0005] The purpose of the utility model is to provide a dust and moisture proof device for power electronic components to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dust and moisture proof device for power electronic components, comprising a mounting base plate, a box shell, a connecting mechanism, a dust and moisture proof mechanism and a fan, the box shell is arranged above the mounting base plate, the box shell is connected to the mounting base plate through the connecting mechanism, the dust and moisture proof mechanism is symmetrically arranged on both sides of the box shell, and the fan is symmetrically fixedly installed on both sides above the mounting base plate.

[0007] It should be noted in the scheme that the connecting mechanism is composed of a fixed frame, a fixed rod, a movable block, a first spring and a positioning block. The fixed frame is symmetrically fixedly connected to both sides of the box shell, the fixed rod is fixedly connected to the inside of the fixed frame, and a fixed plate is fixedly connected to the outer side of the middle part of the fixed rod, the movable block is symmetrically slidably connected to the outside of the fixed rod, and the first spring is fixedly connected between the fixed plate and the movable block, and is sleeved on the outside of the fixed rod.

[0008] It is further worth noting that the positioning block is fixedly connected to the lower part of the moving block, and the positioning block is in an L-shape, and the bottom surface of the horizontal plate of the positioning block is provided with an arc surface.

[0009] It should be further explained that rectangular grooves are symmetrically provided on the top surface of the installation base plate, positioning grooves are symmetrically provided at both ends of the rectangular groove, and the positioning grooves are adapted to the shape of the positioning blocks.

[0010] As a preferred embodiment, the dust and moisture proof mechanism is composed of an installation frame, a filter, a porous plate, a second spring, a limit block, a push block, a push plate, a third spring and a limit strip, and installation grooves are symmetrically opened on both sides of the box shell, the installation frame is arranged inside the installation groove, the filter is installed on the inner outer side of the installation frame, and the porous plate is installed on the inner inner side of the installation frame.

[0011] As a preferred embodiment, circular grooves are symmetrically provided on both sides of the installation frame, the second spring is fixedly connected to the inside of the circular groove, the limit block is fixedly connected to the other end of the second spring, and the limit block is provided with an arc surface near the inside of the box shell.

[0012] As a preferred embodiment, the inner wall of the mounting groove of the box shell is symmetrically provided with limit grooves adapted to the limit block, the push block is slidably connected to the inside of the limit groove, the push plate is fixedly connected to one end of the push block, and the third spring is fixedly connected between the push plate and the outer wall of the box shell, and is sleeved on the outside of the push block.

[0013] Compared with the prior art, the dust and moisture proof device for power electronic components provided by the utility model has at least the following beneficial effects:

[0014] (1) Through the provided connection mechanism, the box shell and the mounting base plate can be quickly disassembled and installed, which is convenient for the inspection and maintenance of the internal electronic components, thereby improving the practicality and convenience of the device and further increasing the service life of the electronic components.

[0015] (2) The filter and the porous plate can be disassembled by means of the dust and moisture proof mechanism, so that the filter can be deeply cleaned and the porous plate can be replaced, thereby improving the moisture and dust proof performance of the device and ensuring the stability of the operation of the internal electronic components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the connection mechanism structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the dust and moisture proof mechanism of the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0020] In the figure: 1. installation base plate; 2. box shell; 3. connecting mechanism; 4. dust and moisture proof mechanism; 5. fan; 301. fixing frame; 302. fixing rod; 303. moving block; 304. first spring; 305. positioning block; 306. rectangular groove; 307. positioning groove; 401. installation frame; 402. filter screen; 403. porous plate; 404. second spring; 405. limiting block; 406. limiting groove; 407. pushing block; 408. pushing plate; 409. third spring; 410. limiting strip. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] See also Figure 1-4 The utility model provides a dust and moisture proof device for power electronic components, comprising a mounting base plate 1, a box shell 2, a connecting mechanism 3, a dust and moisture proof mechanism 4 and a fan 5. The box shell 2 is arranged above the mounting base plate 1, the box shell 2 is connected to the mounting base plate 1 through the connecting mechanism 3, the dust and moisture proof mechanism 4 is symmetrically arranged on both sides of the box shell 2, and the fan 5 is symmetrically fixedly installed on both sides above the mounting base plate 1.

[0023] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth specifically explaining that the connecting mechanism 3 is composed of a fixed frame 301, a fixed rod 302, a moving block 303, a first spring 304 and a positioning block 305. The fixed frame 301 is symmetrically fixedly connected to both sides of the box shell 2, the fixed rod 302 is fixedly connected to the inside of the fixed frame 301, and the middle outer side of the fixed rod 302 is fixedly connected with a fixed plate, the moving block 303 is symmetrically slidably connected to the outside of the fixed rod 302, and the first spring 304 is fixedly connected between the fixed plate and the moving block 303, and is sleeved on the outside of the fixed rod 302;

[0024] The first spring 304 can drive the positioning block 305 to return to its original position through the elastic effect thereof, and extend into the positioning groove 307 to fix the connection between the positioning block 305 and the mounting base plate 1 , thereby ensuring the stability of the connection.

[0025] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth to explain in detail that the positioning block 305 is fixedly connected to the bottom of the moving block 303, and the positioning block 305 is L-shaped, and the bottom surface of the horizontal plate of the positioning block 305 is provided with an arc surface;

[0026] By providing the arc surface, the positioning block 305 can be squeezed when the box shell 2 moves downward, so that the positioning block 305 can be extended into the interior of the rectangular groove 306, thereby improving the practicability of the device.

[0027] Further Figure 1 , Figure 2 and Figure 4 As shown, it is worth to explain in detail that a rectangular groove 306 is symmetrically opened on the top surface of the installation base plate 1 , and positioning grooves 307 are symmetrically opened at both ends of the rectangular groove 306 , and the positioning grooves 307 are adapted to the shape of the positioning block 305 .

[0028] According to the above working process, it can be known that: through the provided connection mechanism 3, the box shell 2 and the mounting base plate 1 can be quickly disassembled and installed, which is convenient for the inspection and maintenance of the internal electronic components, thereby improving the practicality and convenience of the device, and further increasing the service life of the electronic components.

[0029] Further Figure 1 , Figure 2 and Figure 3 As shown, it is worth specifically explaining that the dust and moisture proof mechanism 4 is composed of a mounting frame 401, a filter screen 402, a porous plate 403, a second spring 404, a limit block 405, a push block 407, a push plate 408, a third spring 409 and a limit strip 410. The two sides of the box shell 2 are symmetrically provided with mounting grooves, the mounting frame 401 is arranged inside the mounting groove, the filter screen 402 is installed on the inner outer side of the mounting frame 401, and the porous plate 403 is installed on the inner inner side of the mounting frame 401;

[0030] The filter 402 can block impurities in the air entering the box shell 2 to improve the dustproof effect, and the porous plate 403 can adsorb moisture inside the box shell 2 to improve the moisture-proof effect.

[0031] Further Figure 1 , Figure 2 and Figure 3As shown, it is worth specifically explaining that circular grooves are symmetrically provided on both sides of the installation frame 401, the second spring 404 is fixedly connected to the inside of the circular groove, the limit block 405 is fixedly connected to the other end of the second spring 404, and the limit block 405 is provided with an arc surface close to the inside of the box shell 2, and the inner wall of the installation groove of the box shell 2 is symmetrically provided with limit grooves 406 adapted to the limit block 405, the push block 407 is slidably connected to the inside of the limit groove 406, the push plate 408 is fixedly connected to one end of the push block 407, and the third spring 409 is fixedly connected between the push plate 408 and the outer wall of the box shell 2, and is sleeved on the outside of the push block 407;

[0032] By extending the limiting block 405 into or out of the limiting groove 406, the installation frame 401 and the box shell 2 can be installed or removed, thereby improving the performance of the mechanism.

[0033] This solution has the following working process: when in use, the motor fan 5 is controlled to drive the internal high-temperature gas to be output through the porous plate 403 and the filter 402, thereby reducing the temperature inside the box shell 2 and ensuring the normal operation of the internal electronic components. At the same time, the porous plate 403 can adsorb the internal water vapor to ensure the dryness of the inside of the box shell 2 and increase the service life of the electronic components; when it is necessary to inspect and repair the electronic components inside the box shell 2, the moving blocks 303 are pressed in opposite directions to drive the positioning blocks 305 to disengage. The connection between the positioning block 305 and the mounting base plate 1 is released inside the positioning groove 307, and the box shell 2 can be pulled out upward, so that the electronic components above the mounting base plate 1 can be inspected and repaired, and the operation is convenient; then the push plate 408 is pressed to drive the push block 407 to squeeze the limit block 405, so that the limit block 405 shrinks into the inside of the circular groove, and the connection between the mounting frame 401 and the box shell 2 is released, so that the mounting frame 401 can be disassembled, and the filter screen 402 can be cleaned, and the porous plate 403 can be replaced, thereby improving the practicability of the device.

[0034] In summary: through the provided connecting mechanism 3, the box shell 2 and the mounting base plate 1 can be quickly disassembled and installed, which is convenient for the inspection and maintenance of the internal electronic components, thereby improving the practicability and convenience of the device, and thus increasing the service life of the electronic components; through the provided dust and moisture proof mechanism 4, the filter 402 and the porous plate 403 can be disassembled, the filter 402 can be deeply cleaned, and the porous plate 403 can be replaced, thereby improving the moisture and dust proof performance of the device and ensuring the stability of the operation of the internal electronic components.

Claims

1. A dust and moisture proof device for power electronic components, comprising a mounting base plate (1), a box housing (2), a connecting mechanism (3), a dust and moisture proof mechanism (4) and a fan (5), characterized in that: The box shell (2) is arranged above the mounting base plate (1), the box shell (2) is connected to the mounting base plate (1) via a connecting mechanism (3), the dust and moisture proof mechanism (4) is symmetrically arranged on both sides of the box shell (2), and the fan (5) is symmetrically fixedly installed on both sides above the mounting base plate (1); The connecting mechanism (3) is composed of a fixed frame (301), a fixed rod (302), a moving block (303), a first spring (304) and a positioning block (305); the fixed frame (301) is symmetrically fixedly connected to both sides of the box shell (2); the fixed rod (302) is fixedly connected to the inside of the fixed frame (301); and a fixed plate is fixedly connected to the outer side of the middle part of the fixed rod (302); the moving block (303) is symmetrically slidably connected to the outside of the fixed rod (302); the first spring (304) is fixedly connected between the fixed plate and the moving block (303), and is sleeved on the outside of the fixed rod (302).

2. A dust and moisture proof device for power electronic components according to claim 1, characterized in that: The positioning block (305) is fixedly connected to the bottom of the moving block (303), and the positioning block (305) is L-shaped, and the bottom surface of the horizontal plate of the positioning block (305) is provided with an arc surface.

3. A dust and moisture proof device for power electronic components according to claim 2, characterized in that: A rectangular groove (306) is symmetrically provided on the top surface of the installation base plate (1), and positioning grooves (307) are symmetrically provided at both ends of the rectangular groove (306), and the positioning grooves (307) are adapted to the shape of the positioning block (305).

4. The dust and moisture proof device for power electronic components according to claim 1, characterized in that: The dust and moisture proof mechanism (4) is composed of a mounting frame (401), a filter screen (402), a porous plate (403), a second spring (404), a limit block (405), a push block (407), a push plate (408), a third spring (409) and a limit strip (410). The housing (2) is symmetrically provided with mounting grooves on both sides. The mounting frame (401) is arranged inside the mounting grooves. The filter screen (402) is installed on the inner outer side of the mounting frame (401). The porous plate (403) is installed on the inner inner side of the mounting frame (401).

5. A dust and moisture proof device for power electronic components according to claim 4, characterized in that: Circular grooves are symmetrically provided on both sides of the installation frame (401); the second spring (404) is fixedly connected to the inside of the circular groove; the limit block (405) is fixedly connected to the other end of the second spring (404); and the limit block (405) is provided with an arc surface close to the inside of the box shell (2).

6. A dust and moisture proof device for power electronic components according to claim 5, characterized in that: The inner wall of the mounting groove of the box shell (2) is symmetrically provided with a limiting groove (406) adapted to the limiting block (405); the push block (407) is slidably connected to the inside of the limiting groove (406); the push plate (408) is fixedly connected to one end of the push block (407); the third spring (409) is fixedly connected between the push plate (408) and the outer wall of the box shell (2), and is sleeved on the outside of the push block (407).

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