New energy storage cabinet for outdoor use

Abstract

The utility model relates to new energy storage cabinet's technical field especially relates to a new energy storage cabinet for outdoor, it includes new energy storage cabinet, including shock damping base, box, inclined roof and energy storage cabin, the top of shock damping base is fixedly connected with the bottom of box, through dustproof board in the operation of heat dissipation fan can intercept dust and other impurities in gas, through the screw of double shaft motor drive makes the cleaning piece to run, because long -time use, dust and other impurities can gather into a group, the dustproof board inside dust and other impurities are conveniently cleaned out by cleaning piece, at this time through scraping member can scrape out the dust and other impurities and handle, and the dust and other impurities scraped can be collected by collecting member, scraping member will drive the air -blowing spare in the process of running, the air -blowing spare will scrape the dust and other impurities better and blow to the inside of collection box, because the inside of collection box can inject water, can avoid the wind that enters collection box inside makes dust and other impurities spread.

Description

Technical Field

[0001] This utility model relates to the technical field of new energy storage cabinets, and in particular to a new energy storage cabinet for outdoor use. Background Technology

[0002] Outdoor renewable energy storage cabinets are devices used to store and distribute renewable energy, typically in outdoor environments such as solar power plants and wind farms. Their main function is to store electricity generated by solar or wind power and release it when needed, ensuring the stability and reliability of the power supply.

[0003] An existing patent discloses an outdoor safe new energy storage device, publication number CN221708841U, which includes a heat dissipation component, including a housing, a sloping top, a dual-axis motor, and heat sinks. The sloping top is fixed to the top of the housing, the dual-axis motor is fixed to both sides of the housing, and the heat sinks are disposed on both sides of the housing. A protective component is also disclosed, disposed at the bottom of the housing's inner cavity, including a base plate, an energy storage chamber, a pressure member, and a shock absorber. The base plate is slidably connected to the bottom of the housing's inner cavity, the energy storage chamber is fixed to the top of the base plate, the pressure member is disposed at the bottom of the base plate, and the shock absorber is disposed at the bottom of the pressure member. The beneficial effects achieved by this utility model are: the inclined top design allows rainwater to drain from the top, preventing rainwater from seeping into the interior of the cabinet; the pressure and shock-absorbing components protect the battery and reduce noise pollution. During use, the aforementioned new energy storage device accumulates a large amount of dust after prolonged use due to the dustproof plate intercepting dust in the gas, affecting the heat dissipation and normal operation of the equipment inside the new energy storage cabinet; and the dustproof plate cannot be cleaned quickly when cleaning is required. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current outdoor new energy storage cabinets, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a new energy storage cabinet for outdoor use, which is to quickly clean dust and other impurities inside the dustproof panel, and to absorb and prevent the cleaning of dust and other impurities.

[0007] To solve the above technical problems, this utility model provides the following technical solution: a new energy storage cabinet, which includes a shock-absorbing base, a box body, an inclined top and an energy storage compartment. The top of the shock-absorbing base is fixedly connected to the bottom of the box body, the bottom of the inclined top is fixedly connected to the top of the box body, and the energy storage compartment is installed inside the box body.

[0008] A heat dissipation cleaning mechanism includes a dual-axis motor, two cooling fans, screws, cleaning components, and dustproof plates. The top of the dual-axis motor is fixedly connected to the top of the housing. The opposite sides of the two cooling fans are fixedly connected to the left and right sides of the housing, respectively. The screws are symmetrically arranged on the left and right sides of the dual-axis motor, with the side of the screw closest to the output end of the dual-axis motor fixedly connected to the output end. The cleaning components are symmetrically arranged on both sides of the housing, and the dustproof plates are symmetrically arranged on both sides of the housing. The surface of the dustproof plates is fixedly connected to the interior of the housing.

[0009] The dust collection mechanism includes a scraper, a collector, and a blower. The scraper is symmetrically arranged on the left and right sides of the housing. The collector is symmetrically arranged on the left and right sides of the housing and located at the bottom of the scraper. The blower is symmetrically arranged on the left and right sides of the housing and located behind the scraper.

[0010] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the cleaning component includes an L-shaped block, a movable plate, and multiple protruding pillars. The top of the interior of the L-shaped block is threadedly connected to the surface of the screw. The right side of the L-shaped block is fixedly connected to the left side of the movable plate. The left sides of the multiple protruding pillars are all fixedly connected to the right side of the movable plate and are evenly distributed.

[0011] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the scraping component includes a scraping block, a lifting block, a telescopic hose, a connecting block, and an electric telescopic column. The left side of the scraping block is attached to the outer side of the cabinet. The surface of the scraping block is fixedly connected to the left side of the interior of the lifting block. The top of the telescopic hose is fixedly connected to the bottom of the lifting block. The bottom of the connecting block is fixedly connected to the top of the lifting block. The right side of the bottom of the connecting block is fixedly connected to the top of the output end of the electric telescopic column.

[0012] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the collection component includes a support box and a collection box. The side of the support box near the box body is fixedly connected to the box body. The surface of the collection box is inserted into the interior of the support box. The top of the support box is fixedly connected to the bottom of the electric telescopic column. The bottom of the telescopic hose is fixedly connected to the top of the support box.

[0013] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the blowing component includes a fixing plate, an air bag, an inlet valve, an outlet valve, an outlet, and a mounting block. The left side of the fixing plate is fixedly connected to the right side of the housing. The bottom of the air bag is fixedly connected to the top of the fixing plate. The left side of the inlet valve is fixedly connected to the bottom of the right side of the air bag. The bottom of the outlet valve is fixedly connected to the top of the air bag. The surface of the outlet is fixedly connected to the top of the inside of the lifting block. The top of the outlet is fixedly connected to the front side of the outlet valve. The rear side of the bottom of the mounting block is fixedly connected to the top of the air bag. The front side of the mounting block is fixedly connected to the rear side of the connecting block.

[0014] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the cabinet body is provided with symmetrical limit frames on both sides, the surface of the screw is rotatably connected to the inside of the limit frame, the surface of the L-shaped block is slidably connected to the inside of the limit frame, and the top of the cooling fan is fixedly connected to the bottom of the limit frame.

[0015] As a preferred embodiment of the new energy storage cabinet for outdoor use described in this utility model, the surfaces of the plurality of protruding pillars are all inserted and connected to the interior of the dustproof plate, and the diameters of the plurality of protruding pillars are all the same as the interior diameters of the dustproof plate.

[0016] The beneficial effects of this utility model are as follows: When the cooling fan is running, it intercepts dust and other impurities in the air through the dustproof plate. The cleaning component is driven by the screw driven by the dual-axis motor. Due to long-term use, dust and other impurities will accumulate into clumps, which makes it easy for the cleaning component to push out the dust and other impurities inside the dustproof plate. At this time, the scraping component can scrape off the pushed-out dust and other impurities, and the scraped dust and other impurities can be collected by the collecting component. During the operation of the scraping component, the blowing component will drive the blowing component, which will blow the scraped dust and other impurities into the collection box. Since the inside of the collection box can be filled with water, it can prevent the air entering the collection box from spreading the dust and other impurities. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0018] Figure 1 A schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the internal structure of the box provided by this utility model.

[0020] Figure 3 A detailed three-dimensional schematic diagram of a partial structure provided by this utility model.

[0021] Figure 4 A three-dimensional structural diagram of the dust collection mechanism provided by this utility model.

[0022] Figure 5 An exploded three-dimensional diagram of a partial structure provided by this utility model. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Example 1

[0028] Reference Figures 1-5 This is the first embodiment of the present utility model, which provides a new energy storage cabinet 100, a dual-axis motor 201, a cooling fan 202, a screw 203, a cleaning component 204, a dustproof plate 205, and a limiting frame 102a. Through the new energy storage cabinet 100, the dual-axis motor 201, the cooling fan 202, the screw 203, the cleaning component 204, the dustproof plate 205, and the limiting frame 102a, dust and other impurities inside the dustproof plate 205 can be cleaned quickly.

[0029] The new energy storage cabinet 100 includes a shock-absorbing base 101, a box 102, a sloping top 103, and an energy storage compartment 104. The top of the shock-absorbing base 101 is fixedly connected to the bottom of the box 102, the bottom of the sloping top 103 is fixedly connected to the top of the box 102, and the energy storage compartment 104 is installed inside the box 102.

[0030] The heat dissipation cleaning mechanism 200 includes a dual-axis motor 201, two cooling fans 202, a screw 203, cleaning components 204, and a dustproof plate 205. The top of the dual-axis motor 201 is fixedly connected to the top of the interior of the housing 102. The opposite sides of the two cooling fans 202 are fixedly connected to the left and right sides of the interior of the housing 102, respectively. The screw 203 is symmetrically arranged on the left and right sides of the dual-axis motor 201. The side of the screw 203 near the output end of the dual-axis motor 201 is fixedly connected to the output end of the dual-axis motor 201. The cleaning components 204 are symmetrically arranged on both sides of the interior of the housing 102. The dustproof plate 205 is symmetrically arranged on both sides of the housing 102, and the surface of the dustproof plate 205 is fixedly connected to the interior of the housing 102.

[0031] The cleaning component 204 includes an L-shaped block 204a, a movable plate 204b, and a plurality of protrusions 204c. The top of the interior of the L-shaped block 204a is threadedly connected to the surface of the screw 203. The right side of the L-shaped block 204a is fixedly connected to the left side of the movable plate 204b. The left sides of the plurality of protrusions 204c are all fixedly connected to the right side of the movable plate 204b and are evenly distributed.

[0032] The two sides inside the housing 102 are symmetrically provided with limit frames 102a. The surface of the screw 203 is rotatably connected to the inside of the limit frame 102a. The surface of the L-shaped block 204a is slidably connected to the inside of the limit frame 102a. The top of the cooling fan 202 is fixedly connected to the bottom of the limit frame 102a.

[0033] The surfaces of multiple protrusions 204c are all inserted into the interior of the dustproof plate 205, and the diameters of the multiple protrusions 204c are the same as those of the interior of the dustproof plate 205.

[0034] Specifically, the lengths of the multiple protrusions 204c are all the same as the internal length of the dustproof plate 205. The output end of the dual-axis motor 201 can drive the screw 203 to rotate. The rotation of the screw 203 can move the cleaning component 204. When the L-shaped block 204a drives the moving plate 204b and the multiple protrusions 204c to move, after the multiple protrusions 204c are inserted and connected to the inside of the dustproof plate 205, the multiple protrusions 204c will push out the dust and other impurities inside the dustproof plate 205. The limiting frame 102a can limit the L-shaped block 204a and support the screw 203, so that the L-shaped block 204a drives the moving plate 204b and the multiple protrusions 204c to move stably and parallel.

[0035] Furthermore, when the cooling fan 202 runs for a long time, the dust filter 205 will intercept dust and other impurities in the gas. When it is necessary to clean the dust filter 205.

[0036] By operating the dual-axis motor 201, the output end of the dual-axis motor 201 drives the screw 203. The rotation of the screw 203 causes the L-shaped block 204a to move the moving plate 204b and multiple protrusions 204c to one side of the dustproof plate 205. The L-shaped block 204a, the moving plate 204b and the multiple protrusions 204c move stably through the limit frame 102a. When all the protrusions 204c are inserted into the interior of the dustproof plate 205, the dual-axis motor 201 stops running. At this time, all the dust inside the dustproof plate 205 is pushed out by the multiple protrusions 204c.

[0037] Example 2

[0038] Reference Figures 1-5 The second embodiment of this utility model provides a scraping component 301, a collecting component 302, and a blowing component 303. Through the scraping component 301, the collecting component 302, and the blowing component 303, dust and other impurities pushed out from inside the dustproof plate 205 can be quickly cleaned and collected.

[0039] The dust collection mechanism 300 includes a scraper 301, a collector 302, and a blower 303. The scraper 301 is symmetrically arranged on the left and right sides of the housing 102. The collector 302 is symmetrically arranged on the left and right sides of the housing 102 and is located at the bottom of the scraper 301. The blower 303 is symmetrically arranged on the left and right sides of the housing 102 and is located behind the scraper 301.

[0040] The scraping component 301 includes a scraping block 301a, a lifting block 301b, a telescopic hose 301c, a connecting block 301d, and an electric telescopic column 301e. The left side of the scraping block 301a is attached to the outside of the housing 102. The surface of the scraping block 301a is fixedly connected to the left side of the inside of the lifting block 301b. The top of the telescopic hose 301c is fixedly connected to the bottom of the lifting block 301b. The bottom of the connecting block 301d is fixedly connected to the top of the lifting block 301b. The right side of the bottom of the connecting block 301d is fixedly connected to the top of the output end of the electric telescopic column 301e.

[0041] The collection component 302 includes a support box 302a and a collection box 302b. The support box 302a is fixedly connected to the box 102 on the side near the box 102. The surface of the collection box 302b is inserted into the interior of the support box 302a. The top of the support box 302a is fixedly connected to the bottom of the electric telescopic column 301e. The bottom of the telescopic hose 301c is fixedly connected to the top of the support box 302a.

[0042] The blower component 303 includes a fixed plate 303a, an airbag 303b, an air inlet valve 303c, an air outlet valve 303d, an air outlet 303e, and a mounting block 303f. The left side of the fixed plate 303a is fixedly connected to the right side of the housing 102. The bottom of the airbag 303b is fixedly connected to the top of the fixed plate 303a. The left side of the air inlet valve 303c is fixedly connected to the bottom right side of the airbag 303b. The bottom of the air outlet valve 303d is fixedly connected to the top of the airbag 303b. The surface of the air outlet 303e is fixedly connected to the top inside the lifting block 301b. The top of the air outlet 303e is fixedly connected to the front side of the air outlet valve 303d. The rear side of the bottom of the mounting block 303f is fixedly connected to the top of the airbag 303b. The front side of the mounting block 303f is fixedly connected to the rear side of the connecting block 301d.

[0043] Specifically, the telescopic hose 301c can be extended in height. The electric telescopic column 301e drives the connecting block 301d to move, which will cause the lifting block 301b to move the scraping block 301a. At this time, the lifting block 301b will cause the telescopic hose 301c to deform. Water can be injected into the collection box 302b. The support box 302a and the collection box 302b can be fixed by bolts. The airbag 303b is in a compressed state at this time. The mounting block 303f can drive the airbag 303b to unfold or compress through the connecting block 301d.

[0044] Furthermore, the electric telescopic column 301e is operated, causing the output end of the electric telescopic column 301e to cause the connecting block 301d to move the lifting block 301b upward. The lifting block 301b will cause the scraping block 301a and the telescopic hose 301c to move upward. The scraping block 301a will scrape and clean the impurities pushed out by the multiple protrusions 204c. The scraped dust and other impurities will enter the interior of the telescopic hose 301c through the shape inside the lifting block 301b, and then pass through the support box 302a into the interior of the collection box 302b.

[0045] As the connecting block 301d moves, the mounting block 303f moves upward and the airbag 303b deforms. At this time, the airbag 303b is inflated through the air inlet valve 303c. After the scraping block 301a scrapes away dust and other impurities, the output end of the electric telescopic column 301e moves downward, causing the connecting block 301d to drive the lifting block 301b, scraping block 301a, telescopic hose 301c, and mounting block 303f to move downward. The mounting block 303f compresses the airbag 303b, and the gas inside the airbag 303b is discharged from the air outlet 303e through the air outlet valve 303d, thereby blowing towards the interior of the lifting block 301b, so that the scraped dust and other impurities can enter the interior of the collection box 302b more quickly.

[0046] It should be noted that the 301c telescopic hose is made of PVC hose material.

[0047] The remaining structure is the same as that in Example 1.

[0048] In summary, when cleaning the dustproof plate 205 is required, it is not necessary to remove the dustproof plate 205 for cleaning, saving time and effort. The cleaning component 204 is operated by the screw 203 driven by the dual-axis motor 201. The cleaning component 204 can push out the dust and other impurities inside the dustproof plate 205. At this time, the scraper 301 can be driven to scrape off the pushed-out dust and other impurities, which are then collected by the collection component 302. When the scraper 301 is in use, it will cause the air bag 303b to be inflated accordingly. The gas inside the air bag 303b will be discharged through the air outlet 303e, which will accelerate the entry of the dust and other impurities scraped by the scraper 301 into the collection box 302b.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of this utility model. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the present invention, or those features that are not relevant to implementing the present invention.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A new energy storage cabinet for outdoor use, characterized in that: include A new energy storage cabinet (100) includes a shock-absorbing base (101), a box (102), a sloping top (103), and an energy storage compartment (104). The top of the shock-absorbing base (101) is fixedly connected to the bottom of the box (102), the bottom of the sloping top (103) is fixedly connected to the top of the box (102), and the energy storage compartment (104) is installed inside the box (102). A heat dissipation cleaning mechanism (200) includes a dual-axis motor (201), two cooling fans (202), a screw (203), cleaning components (204), and a dustproof plate (205). The top of the dual-axis motor (201) is fixedly connected to the top of the interior of the housing (102). The opposite sides of the two cooling fans (202) are fixedly connected to the left and right sides of the interior of the housing (102), respectively. The screw (203) is symmetrically arranged on the left and right sides of the dual-axis motor (201). The side of the screw (203) near the output end of the dual-axis motor (201) is fixedly connected to the output end of the dual-axis motor (201). The cleaning components (204) are symmetrically arranged on both sides of the interior of the housing (102). The dustproof plate (205) is symmetrically arranged on both sides of the housing (102), and the surface of the dustproof plate (205) is fixedly connected to the interior of the housing (102). The dust collection mechanism (300) includes a scraper (301), a collector (302), and a blower (303). The scraper (301) is symmetrically arranged on the left and right sides of the housing (102). The collector (302) is symmetrically arranged on the left and right sides of the housing (102) and located at the bottom of the scraper (301). The blower (303) is symmetrically arranged on the left and right sides of the housing (102) and located behind the scraper (301).

2. The outdoor new energy storage cabinet according to claim 1, characterized in that: The cleaning component (204) includes an L-shaped block (204a), a movable plate (204b), and a plurality of protrusions (204c). The top of the interior of the L-shaped block (204a) is threadedly connected to the surface of the screw (203). The right side of the L-shaped block (204a) is fixedly connected to the left side of the movable plate (204b). The left sides of the plurality of protrusions (204c) are all fixedly connected to the right side of the movable plate (204b) and are evenly distributed.

3. The outdoor new energy storage cabinet according to claim 1, characterized in that: The scraping component (301) includes a scraping block (301a), a lifting block (301b), a telescopic hose (301c), a connecting block (301d), and an electric telescopic column (301e). The left side of the scraping block (301a) is attached to the outside of the housing (102). The surface of the scraping block (301a) is fixedly connected to the left side of the interior of the lifting block (301b). The top of the telescopic hose (301c) is fixedly connected to the bottom of the lifting block (301b). The bottom of the connecting block (301d) is fixedly connected to the top of the lifting block (301b). The right side of the bottom of the connecting block (301d) is fixedly connected to the top of the output end of the electric telescopic column (301e).

4. The outdoor new energy storage cabinet according to claim 3, characterized in that: The collection component (302) includes a support box (302a) and a collection box (302b). The support box (302a) is fixedly connected to the box (102) on the side near the box (102). The surface of the collection box (302b) is inserted into the interior of the support box (302a). The top of the support box (302a) is fixedly connected to the bottom of the electric telescopic column (301e). The bottom of the telescopic hose (301c) is fixedly connected to the top of the support box (302a).

5. The outdoor new energy storage cabinet according to any one of claims 2 to 4, characterized in that: The blower component (303) includes a fixing plate (303a), an air bag (303b), an air inlet valve (303c), an air outlet valve (303d), an air outlet (303e), and a mounting block (303f). The left side of the fixing plate (303a) is fixedly connected to the right side of the housing (102). The bottom of the air bag (303b) is fixedly connected to the top of the fixing plate (303a). The left side of the air inlet valve (303c) is fixedly connected to the bottom right side of the air bag (303b). The bottom of the air valve (303d) is fixedly connected to the top of the airbag (303b), the surface of the air outlet (303e) is fixedly connected to the top of the inside of the lifting block (301b), the top of the air outlet (303e) is fixedly connected to the front side of the air valve (303d), the rear side of the bottom of the mounting block (303f) is fixedly connected to the top of the airbag (303b), and the front side of the mounting block (303f) is fixedly connected to the rear side of the connecting block (301d).

6. The outdoor new energy storage cabinet according to claim 2, characterized in that: The housing (102) has symmetrically arranged limit frames (102a) on both sides inside. The surface of the screw (203) is rotatably connected to the inside of the limit frame (102a). The surface of the L-shaped block (204a) is slidably connected to the inside of the limit frame (102a). The top of the cooling fan (202) is fixedly connected to the bottom of the limit frame (102a).

7. The outdoor new energy storage cabinet according to claim 2, characterized in that: The surfaces of the plurality of protrusions (204c) are all inserted into the interior of the dustproof plate (205), and the diameter of the plurality of protrusions (204c) is the same as that of the interior of the dustproof plate (205).

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