CN221202968U - Dustproof device and electrical equipment - Google Patents

Abstract

The utility model provides a dustproof device and an electrical device, wherein the dustproof device comprises: a dust-proof cotton body; the installation structure is arranged at the air inlet of the electrical equipment main body and comprises an installation piece, a first ventilation hole and a first supporting structure, wherein the first ventilation hole and the first supporting structure are arranged on the installation piece, the first ventilation hole is communicated with the air inlet, and the dustproof cotton main body is arranged on the installation piece; the compressing structure comprises a compressing piece, a second ventilation hole and a second supporting structure, wherein the second ventilation hole and the second supporting structure are arranged on the compressing piece, the second supporting structure is in limit fit with the first supporting structure, the second ventilation hole is communicated with the first ventilation hole, the compressing piece is detachably connected with the mounting piece, and the compressing piece is used for compressing the dustproof cotton main body. Therefore, when the dustproof cotton main body is mounted, the second support plate and the first support plate can be in limit fit, so that the pressing piece is ensured to be stable on the mounting piece, and then the pressing piece and the mounting piece are connected, so that the dustproof cotton main body is pressed. The dustproof device in the prior art has been solved to this scheme in the loaded down with trivial details and difficult problem of dismouting process.

Description

Dustproof device and electrical equipment

Technical Field

The utility model relates to the technical field of dustproof devices, in particular to a dustproof device and electrical equipment.

Background

Generally, electric equipment (an inverter, a PCS, a low-voltage cabinet, a power distribution cabinet, a UPS cabinet and the like) is provided with a heat dissipation system for dissipating heat of internal devices, and the heat dissipation system is provided with an air inlet and outlet to realize a heat dissipation loop for cold air entering and hot air discharging. The dustproof cotton is widely applied to an air inlet and an air outlet of a heat radiation system and is used for blocking dust and foreign matters with certain particle size from entering a machine to play a dustproof role. Dust and foreign matters can accumulate along with time in the normal use process of the dustproof cotton, and maintenance personnel are required to maintain and replace the dustproof cotton regularly. The installation device of dustproof cotton in the prior art is complicated in installation mode, and a plurality of screws are required to be disassembled and assembled to replace one piece of dustproof cotton, so that time and labor are wasted, and batch maintenance efficiency is affected.

Disclosure of utility model

The utility model provides a dustproof device and electrical equipment, which are used for solving the problems that the dustproof device in the prior art is complex and difficult to assemble and disassemble.

In order to solve the above-described problems, according to an aspect of the present utility model, there is provided a dust-proof device comprising: a dust-proof cotton body; the installation structure is arranged at the air inlet of the electrical equipment main body and comprises an installation piece, a first ventilation hole and a first supporting structure, wherein the first ventilation hole and the first supporting structure are arranged on the installation piece, the first ventilation hole is communicated with the air inlet, and the dustproof cotton main body is arranged on the installation piece; the compressing structure comprises a compressing piece, a second ventilation hole and a second supporting structure, wherein the second ventilation hole and the second supporting structure are arranged on the compressing piece, the second supporting structure is in limit fit with the first supporting structure, the second ventilation hole is communicated with the first ventilation hole, the compressing piece is detachably connected with the mounting piece, and the compressing piece is used for compressing the dustproof cotton main body.

Further, the first support structure comprises a first support plate arranged on the mounting piece, the second support structure comprises a second support plate arranged on the pressing piece, and the second support plate is in limit fit with the first support plate.

Further, the first support structure further comprises a support groove, the support groove penetrates through the mounting piece, the first support plate is located below the support groove, and the second support plate penetrates through the support groove and is in butt joint with the first support plate.

Or the first bearing structure still includes transition board and first butt board, and the second bearing structure still includes the second butt board, and first backup pad is connected with the one end of transition board, and first butt board is connected with the transition board other end, and first backup pad is parallel with first butt board, and first backup pad, first butt board are all perpendicular with the transition board, and the second backup pad is connected with the second butt board, has the contained angle between second butt board and the second backup pad, and second butt board and first butt board butt.

Further, the dustproof device further comprises a second fastening piece, the installation piece is an installation plate, the pressing piece is a pressing plate, the installation plate is provided with a first assembly hole, the pressing plate is provided with a second assembly hole, the first assembly hole and the first supporting structure are respectively located on two sides of the installation plate, the second assembly hole and the second supporting structure are respectively located on two sides of the pressing plate, and the second fastening piece sequentially penetrates through the second assembly hole and the first assembly hole to connect the installation plate with the pressing plate.

Further, the compacting plate comprises a compacting main plate and an assembling block arranged on the compacting main plate, the second assembling hole is formed in the assembling block and penetrates through the assembling block and the compacting main plate, and the second assembling hole is a waist-shaped hole.

Further, the dustproof device further comprises a first fastening piece, the installation piece comprises a first installation plate, a second installation plate and a third installation plate which are sequentially connected, the second installation plate is provided with a first ventilation hole, the first installation plate and the third installation plate are connected with the main body of the electrical equipment through the first fastening piece, the first installation plate and the pressing piece are detachably connected, the second installation plate is provided with a containing groove, and the dustproof cotton main body is installed in the containing groove.

Further, the second mounting panel is including installing the mainboard and setting up first limiting plate and second limiting plate on the installation mainboard, and first limiting plate, second limiting plate set up respectively in the both sides of installing the mainboard, and first limiting plate, installation mainboard and second limiting plate form the holding tank, and first limiting plate, second limiting plate are all connected with first mounting panel, and dustproof cotton main part inserts in the holding tank, and covers first ventilation hole.

Further, the first limiting plate comprises a first plate body and a second plate body which are connected with each other, the second limiting plate comprises a third plate body and a fourth plate body which are connected with each other, one side of the first plate body is connected with one side of the installation main plate, the first plate body is vertical to the second plate body, the third plate body is connected with the other side of the installation main plate, the third plate body is vertical to the fourth plate body, the first plate body, the second plate body, the third plate body, the fourth plate body and the installation main plate form a containing groove, and the first plate body and the third plate body are all connected with the first installation plate.

Further, the installation mainboard includes interconnect's mainboard body and bottom plate, and bottom plate and mainboard body are perpendicular, and the mainboard body has first ventilation hole, and bottom plate and third mounting panel are connected, and first limiting plate, second limiting plate all are connected with the mainboard body, and first limiting plate, mainboard body, bottom plate and second limiting plate form the holding tank.

According to another aspect of the present utility model, there is provided an electrical apparatus including an electrical apparatus main body and the dust-proof device described above.

By applying the technical scheme of the utility model, the utility model provides a dustproof device, which comprises the following components: a dust-proof cotton body; the installation structure is arranged at the air inlet of the electrical equipment main body and comprises an installation piece, a first ventilation hole and a first supporting structure, wherein the first ventilation hole and the first supporting structure are arranged on the installation piece, the first ventilation hole is communicated with the air inlet, and the dustproof cotton main body is arranged on the installation piece; the compressing structure comprises a compressing piece, a second ventilation hole and a second supporting structure, wherein the second ventilation hole and the second supporting structure are arranged on the compressing piece, the second supporting structure is in limit fit with the first supporting structure, the second ventilation hole is communicated with the first ventilation hole, the compressing piece is detachably connected with the mounting piece, and the compressing piece is used for compressing the dustproof cotton main body. By adopting the scheme, the first supporting structure is arranged on the mounting piece, and the second supporting structure is arranged on the pressing piece, so that the second supporting plate and the first supporting plate are in limit fit when being mounted, the pressing piece is ensured to be stable on the mounting piece, and then the pressing piece and the mounting piece are connected, so that the dustproof cotton main body is pressed. By utilizing the dustproof device, the problems that the dustproof device in the prior art is complicated and difficult to assemble and disassemble can be effectively solved; and only need dismantle the compress tightly the piece can when the dismouting, improved maintenance efficiency.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 shows an exploded view of a dust guard provided in accordance with a first embodiment of the present utility model;

FIG. 2 shows a schematic structural view of the mounting structure of FIG. 1;

FIG. 3 shows a schematic structural view of the compression structure of FIG. 1;

FIG. 4 shows a side view of the dust guard of FIG. 1;

FIG. 5 shows a partial enlarged view of A in FIG. 4;

FIG. 6 shows a partial enlarged view of B in FIG. 4;

FIG. 7 is a schematic view showing a part of the structure of the dust-proof device in FIG. 1;

Fig. 8 is a schematic structural view showing a mounting structure according to a second embodiment of the present utility model;

Fig. 9 is a cross-sectional view showing a part of the structure of a dust-proof device provided in a second embodiment of the present utility model;

Fig. 10 is a schematic structural view showing a mounting structure provided in a third embodiment of the present utility model;

fig. 11 shows a schematic structural view of a pressing structure provided in the third embodiment of the present utility model.

Wherein the above figures include the following reference numerals:

10. A mounting structure; 11. a mounting member; 111. a first mounting plate; 112. a second mounting plate; 1121. installing a main board; 1122. a first limiting plate; 1123. a second limiting plate; 1124. a first plate body; 1125. a second plate body; 1126. a third plate body; 1127. a fourth plate body; 113. a third mounting plate; 114. a first fitting hole; 12. a first vent; 13. a first support structure; 131. a support groove; 132. a first support plate; 134. a transition plate; 135. a first abutting plate; 14. a receiving groove;

20. A compacting structure; 21. a pressing member; 211. a second fitting hole; 212. compressing the main board; 213. a mounting block; 22. a second vent hole; 23. a second support structure; 232. a second abutting plate;

30. A dust-proof cotton body;

40. An electrical device body.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 and 7 to 9, a first embodiment of the present utility model provides a dust-proof device, including: a dust-proof cotton body 30; the mounting structure 10 is mounted at an air inlet of the electrical equipment main body 40, the mounting structure 10 comprises a mounting piece 11, a first ventilation hole 12 and a first supporting structure 13, wherein the first ventilation hole 12 is arranged on the mounting piece 11, the first ventilation hole 12 is communicated with the air inlet, and the dustproof cotton main body 30 is mounted on the mounting piece 11; the compressing structure 20 comprises a compressing piece 21, a second ventilation hole 22 and a second supporting structure 23, wherein the second ventilation hole 22 and the second supporting structure 23 are arranged on the compressing piece 21, the second supporting structure 23 is in limit fit with the first supporting structure 13, the second ventilation hole 22 is communicated with the first ventilation hole 12, the compressing piece 21 is detachably connected with the mounting piece 11, and the compressing piece 21 is used for compressing the dustproof cotton main body 30.

By adopting the scheme, the first supporting structure 13 is arranged on the mounting piece 11, and the second supporting structure 23 is arranged on the pressing piece 21, so that the second supporting structure 23 and the first supporting structure 13 are in limit fit at first during mounting, the pressing piece 21 is ensured to be stable on the mounting piece 11, and then the pressing piece 21 and the mounting piece 11 are connected, so that the dustproof cotton main body 30 is pressed. By utilizing the dustproof device, the problems that the dustproof device in the prior art is complicated and difficult to assemble and disassemble can be effectively solved; and only need to dismantle compressing tightly piece 21 when the dismouting can, improved maintenance efficiency.

Wherein, the first supporting structure 13 includes a first supporting plate 132 disposed on the mounting member 11, and the second supporting structure 23 includes a second supporting plate disposed on the pressing member 21, and the second supporting plate is in limit fit with the first supporting plate 132.

The first supporting structure 13 and the second supporting structure 23 are arranged, so that when the pressing piece 21 is installed, the second supporting plate and the first supporting plate 132 are in limit fit, the supporting and limit functions can be achieved, and the installation is convenient.

As shown in fig. 2 to 5, in the second embodiment of the present utility model, the first support structure 13 further includes a support groove 131, the support groove 131 penetrates through the mounting member 11, the first support plate 132 is located below the support groove 131, and the second support plate penetrates through the support groove 131 and abuts against the first support plate 132.

The second support plate penetrates through the support groove 131 and is abutted against the first support plate 132, so that the first support plate 132 and the second support plate are abutted against each other conveniently, and the functions of support and limiting are achieved.

As shown in fig. 10 and 11, in the third embodiment of the present utility model, the first support structure 13 further includes a transition plate 134 and a first abutting plate 135, the second support structure 23 further includes a second abutting plate 232, the first supporting plate 132 is connected to one end of the transition plate 134, the first abutting plate 135 is connected to the other end of the transition plate 134, the first supporting plate 132 is parallel to the first abutting plate 135, the first supporting plate 132 and the first abutting plate 135 are perpendicular to the transition plate 134, the second supporting plate is connected to the second abutting plate 232, an included angle is formed between the second abutting plate 232 and the second supporting plate, and the second abutting plate 232 abuts against the first abutting plate 135.

By adopting the above arrangement, the second abutting plate 232 and the first abutting plate 135 can be abutted, so that the functions of supporting and limiting are achieved.

Wherein, mounting structure 10 still includes the first bearing structure 13 that sets up on mounting 11, compress tightly structure 20 still includes the second bearing structure 23 that sets up on compressing tightly piece 21, dust keeper still includes the second fastener, mounting 11 is the mounting panel, compressing tightly piece 21 is the pressure strip, the mounting panel has first pilot hole 114, the pressure strip has second pilot hole 211, first pilot hole 114, first bearing structure 13 is located the both sides of first ventilation hole 12 respectively, second pilot hole 211 and second bearing structure 23 are located the both sides of second ventilation hole 22 respectively, the second fastener passes second pilot hole 211 in proper order, first pilot hole 114, with mounting panel and pressure strip connection.

In this embodiment, the mounting plate is provided with a first assembly hole 114, and the compression plate is provided with a second assembly hole 211, so that the mounting plate and the compression plate can be connected by a second fastener. Wherein the first support structure 13 may be arranged at any position on the mounting 11; likewise, the position of the second support structure 23 may be set at any position on the pressing member 21.

Further, the pressing plate includes a pressing main plate 212 and a fitting block 213 disposed on the pressing main plate 212, and the second fitting hole 211 is disposed on the fitting block 213 and penetrates the fitting block 213 and the pressing main plate 212, and the second fitting hole 211 is a waist-shaped hole.

The second fitting hole 211 is provided as a waist-shaped hole, which improves versatility of the dust-proof device.

Wherein, dust keeper still includes first fastener, and mounting 11 includes first mounting panel 111, second mounting panel 112 and the third mounting panel 113 that connect gradually, and second mounting panel 112 has first ventilation hole 12, and first mounting panel 111, third mounting panel 113 are connected with electrical equipment main part 40 through first fastener, and first mounting panel 111 and clamp 21 can dismantle the connection, and second mounting panel 112 has holding tank 14, and dustproof cotton main part 30 installs in holding tank 14.

So configured, the first mounting plate 111 and the third mounting plate 113 can be connected to the electric device main body 40, and the second mounting plate 112 can be provided with the first vent hole 12. The number of the first ventilation holes 12 is plural, and the plural first ventilation holes 12 are arranged at intervals.

Further, the second mounting plate 112 includes a mounting main plate 1121, and a first limiting plate 1122 and a second limiting plate 1123 disposed on the mounting main plate 1121, the first limiting plate 1122 and the second limiting plate 1123 are disposed on two sides of the mounting main plate 1121, the first limiting plate 1122, the mounting main plate 1121 and the second limiting plate 1123 form a receiving slot 14, the first limiting plate 1122 and the second limiting plate 1123 are connected with the first mounting plate 111, and the dust-proof cotton body 30 is inserted into the receiving slot 14 and covers the first vent hole 12.

In this way, the first and second stopper plates 1122 and 1123 are provided on both sides of the mounting main plate 1121, respectively, so that the housing groove 14 can be formed with the mounting main plate 1121, thereby facilitating insertion of the dust-proof cotton body 30 into the housing groove 14.

In the present embodiment, the first limiting plate 1122 includes a first plate body 1124 and a second plate body 1125 connected to each other, the second limiting plate 1123 includes a third plate body 1126 and a fourth plate body 1127 connected to each other, the first plate body 1124 is connected to one side of the mounting main plate 1121, the first plate body 1124 is perpendicular to the second plate body 1125, the third plate body 1126 is connected to the other side of the mounting main plate 1121, the third plate body 1126 is perpendicular to the fourth plate body 1127, the first plate body 1124, the second plate body 1125, the third plate body 1126, the fourth plate body 1127 and the mounting main plate 1121 form the accommodation groove 14, and the first plate body 1124, the third plate body 1126 are all connected to the first mounting plate 111.

By adopting the arrangement mode, the dustproof cotton main body 30 can be limited in the accommodating groove 14, so that the dustproof cotton main body 30 is limited.

Specifically, the installation main board 1121 includes a main board body and a bottom board that are connected to each other, the bottom board is perpendicular to the main board body, the main board body has a first ventilation hole 12, the bottom board is connected to the third installation board 113, the first limit board 1122, the second limit board 1123 are all connected to the main board body, and the first limit board 1122, the main board body, the bottom board and the second limit board 1123 form the accommodation groove 14.

In this scheme, the installation main board 1121 includes a main board body and a bottom board that are connected to each other, and a first vent hole 12 is provided on the main board body, and the first limiting board 1122, the main board body, the bottom board, and the second limiting board 1123 can form the accommodation groove 14.

In a fourth embodiment, not shown in the drawings, an electrical apparatus is provided, which includes the electrical apparatus main body 40 and the dust-proof device described above.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface on … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (11)

1. A dust-proof device, comprising:

A dust-proof cotton body (30);

The installation structure (10) is installed at an air inlet of the electrical equipment main body (40), the installation structure (10) comprises an installation piece (11), a first ventilation hole (12) and a first supporting structure (13) which are arranged on the installation piece (11), the first ventilation hole (12) is communicated with the air inlet, and the dustproof cotton main body (30) is installed on the installation piece (11);

Compress tightly structure (20), including compressing tightly piece (21) and setting are in second ventilation hole (22) and second bearing structure (23) on compressing tightly piece (21), second bearing structure (23) with first bearing structure (13) spacing cooperation, second ventilation hole (22) with first ventilation hole (12) intercommunication, compressing tightly piece (21) with install piece (11) can dismantle the connection, compressing tightly piece (21) are used for compressing tightly dustproof cotton main part (30).

2. The dust protection device according to claim 1, characterized in that the first support structure (13) comprises a first support plate (132) arranged on the mounting member (11), the second support structure (23) comprises a second support plate arranged on the pressing member (21), and the second support plate is in limit fit with the first support plate (132).

3. The dust protection device according to claim 2, wherein the first support structure (13) further comprises a support groove (131), the support groove (131) extending through the mounting (11), the first support plate (132) being located below the support groove (131), the second support plate extending through the support groove (131) and abutting the first support plate (132).

4. The dust keeper of claim 2, wherein the first support structure (13) further includes a transition plate (134) and a first abutment plate (135), the second support structure (23) further includes a second abutment plate (232), the first support plate (132) is connected to one end of the transition plate (134), the first abutment plate (135) is connected to the other end of the transition plate (134), the first support plate (132) is parallel to the first abutment plate (135), the first support plate (132), the first abutment plate (135) are perpendicular to the transition plate (134), the second support plate is connected to the second abutment plate (232), an included angle is formed between the second abutment plate (232) and the second support plate, and the second abutment plate (232) is in abutment with the first abutment plate (135).

5. The dust prevention device according to claim 1, further comprising a second fastening member, wherein the mounting member (11) is a mounting plate, wherein the pressing member (21) is a pressing plate, wherein the mounting plate is provided with a first mounting hole (114), wherein the pressing plate is provided with a second mounting hole (211), wherein the first mounting hole (114) and the first supporting structure (13) are respectively located at two sides of the mounting plate, wherein the second mounting hole (211) and the second supporting structure (23) are respectively located at two sides of the pressing plate, and wherein the second fastening member sequentially penetrates through the second mounting hole (211) and the first mounting hole (114) to connect the mounting plate and the pressing plate.

6. The dustproof device according to claim 5, characterized in that the pressing plate comprises a pressing main plate (212) and a fitting block (213) arranged on the pressing main plate (212), the second fitting hole (211) is arranged on the fitting block (213) and penetrates through the fitting block (213) and the pressing main plate (212), and the second fitting hole (211) is a waist-shaped hole.

7. The dustproof device according to claim 1, characterized in that the dustproof device further comprises a first fastening piece, the mounting piece (11) comprises a first mounting plate (111), a second mounting plate (112) and a third mounting plate (113) which are sequentially connected, the second mounting plate (112) is provided with the first ventilation hole (12), the first mounting plate (111) and the third mounting plate (113) are connected with the electrical equipment main body (40) through the first fastening piece, the first mounting plate (111) and the pressing piece (21) are detachably connected, the second mounting plate (112) is provided with a containing groove (14), and the dustproof cotton main body (30) is installed in the containing groove (14).

8. The dust-proof device according to claim 7, wherein the second mounting plate (112) includes a mounting main plate (1121) and a first limit plate (1122) and a second limit plate (1123) provided on the mounting main plate (1121), the first limit plate (1122) and the second limit plate (1123) are provided on both sides of the mounting main plate (1121), the first limit plate (1122), the mounting main plate (1121) and the second limit plate (1123) form the accommodation groove (14), the first limit plate (1122) and the second limit plate (1123) are connected to the first mounting plate (111), and the dust-proof cotton body (30) is inserted into the accommodation groove (14) and covers the first ventilation hole (12).

9. The dust keeper of claim 8, wherein the first limiting plate (1122) includes first (1124) and second (1125) plates connected to each other, the second limiting plate (1123) includes third (1126) and fourth (1127) plates connected to each other, the first (1124) and second (1125) plates are connected to one side of the mounting plate (1121), the third (1126) and second (1121) plates are connected to the other side of the mounting plate (1126), the third (1126) and fourth (1127) plates are connected to each other, the first (1124), second (1125), third (1126), fourth (1127) plates and the mounting plate (1121) plates form the receiving slot (14), and the first (1124), third (1126) and first (111) plates are connected to each other.

10. The dust-proof device according to claim 9, wherein the mounting main board (1121) includes a main board body and a bottom board connected to each other, the bottom board is perpendicular to the main board body, the main board body has the first ventilation hole (12), the bottom board is connected to the third mounting board (113), the first limit board (1122), the second limit board (1123) are connected to the main board body, and the first limit board (1122), the main board body, the bottom board, and the second limit board (1123) form the accommodation groove (14).

11. An electrical apparatus, characterized in that the electrical apparatus comprises an electrical apparatus body (40) and a dust protection device according to any one of claims 1 to 10.