A quick-assembly and disassembly filter structure and cabinet

Abstract

This utility model discloses a cabinet-type quick-release filter structure and cabinet. The cabinet has an air inlet. The filter structure includes: a protective cover adapted to be fixed to the cabinet, which has a first opening facing downwards, forming an air inlet channel adapted to connect the first opening and the air inlet; the air inlet channel has a slot extending from the side near the cabinet to the side away from the cabinet, and the protective cover has an insertion port communicating with the slot at the corresponding position; and a filter element adapted to be inserted into or removed from the slot through the insertion port, and covering the air passage section in the corresponding air inlet channel after being inserted into place. This filter structure allows for convenient installation and removal of the filter element.

Description

Technical Field

[0001] This utility model relates to the field of cabinet air intake structure technology, specifically to a cabinet quick-disassembly and assembly filter structure and a cabinet. Background Technology

[0002] Current electrical cabinets, such as energy storage cabinets, converter cabinets, and inverter cabinets, mainly consist of a cabinet body and electrical components located inside. These electrical components typically generate significant heat, requiring cooling. Electrical cabinets generally employ air cooling, which involves installing fans and air ducts inside the cabinet, and air inlets and outlets on the cabinet body. Cooler outside air is drawn into the air ducts through the air inlets, where the cool air carries away the heat from the electrical components. The warmer air is then expelled through the air outlets, completing the air cooling cycle.

[0003] In outdoor environments, server racks are directly exposed to the outdoors, and the electrical components inside require waterproofing and dustproofing. Therefore, additional structures are needed at the air inlets to prevent dust and rainwater from entering the rack. Existing waterproof and dustproof structures typically involve fixing a protective cover to the rack, with the airflow inlet facing downwards to prevent rainwater from entering. Filters, such as mesh filters or filter cotton, are then installed inside the cover to filter and block dust and other particles. However, when using filter cotton, its dense structure, while providing good filtration, easily accumulates dust and becomes clogged, requiring regular cleaning. Cleaning the filter requires removing it from the cover, which is usually fixed inside, with the cover opening facing downwards and positioned low, making removal and reassembly inconvenient. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects or problems in the background art and to provide a cabinet quick-disassembly and assembly filter structure and cabinet, which allows for easy disassembly and assembly of filter components.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Technical Solution 1: A cabinet quick-release filter structure, wherein the cabinet is provided with an air inlet, comprising: a protective cover adapted to be fixed to the cabinet, having a first opening facing downwards and forming an air inlet channel adapted to connect the first opening and the air inlet; the air inlet channel having a slot extending from a side close to the cabinet to a side away from the cabinet, and the protective cover having an insertion port communicating with the slot at a position corresponding to the slot; and a filter element adapted to be inserted into or removed from the slot through the insertion port, and covering the air passage section in the corresponding air inlet channel after being inserted into place.

[0007] Technical Solution 2 based on Technical Solution 1: The edge of the slot near the cabinet is lower than the edge away from the cabinet.

[0008] Technical solution three, based on technical solution one or two: The filter element includes a support frame and a filter body, the filter body is fixedly installed on the support frame and forms a filter interface for filtering, and the support frame is adapted to form a plug-in fit with the slot.

[0009] Technical Solution 4 based on Technical Solution 3: The air inlet channel has a protruding blocking wall on the inner wall near the cabinet that corresponds to the position of the slot; the blocking wall extends in a direction perpendicular to the movement direction of the filter element; after the filter element is inserted into the slot, its edge near the cabinet abuts against the upper surface of the blocking wall to cover the gap between the filter element and the inner wall of the air inlet channel.

[0010] Technical solution five based on technical solution three: The filter element further includes a cover plate; the cover plate is fixed to the side edge of the support frame away from the cabinet and is adapted to cover the insertion port corresponding to the slot after the filter element is inserted into the slot.

[0011] Technical solution six based on technical solution five: The cover plate is also provided with an operating handle.

[0012] Technical solution seven based on technical solution one: The air inlet channel has two supporting walls protruding from its inner walls on both sides in the direction of movement of the filter element, and a limiting wall located above the supporting walls. The supporting walls and the limiting walls both extend from the side closer to the cabinet to the side farther away from the cabinet. The supporting walls and the limiting walls located on the same inner wall of the air inlet channel cooperate to form an insertion part, and the two corresponding insertion parts cooperate to form the slot.

[0013] Technical solution eight based on technical solution seven: The protective cover includes a cover body and a fixed bracket; the cover body is adapted to be fixedly connected to the cabinet and is adapted to form the air intake channel alone or in cooperation with the cabinet; the fixed bracket is fixedly connected to the inner wall of the cover body and is provided with the slot.

[0014] Technical solution nine, based on technical solution one, also includes a filter screen; the filter screen is fixed inside the air inlet channel and located below the slot.

[0015] In addition, the present invention also provides technical solution ten: a cabinet, including a cabinet body, wherein the cabinet body is provided with an air inlet, which adopts the cabinet quick-disassembly and filtration structure as described in any one of technical solutions one to nine.

[0016] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following beneficial effects:

[0017] Technical Solution 1 provides a cabinet-mounted quick-release filter structure. The protective cover in this filter structure can be fixed to the cabinet and can either work with the cabinet or form an air intake channel on its own. One end of this air intake channel is a first opening, and the other end connects to an air inlet on the cabinet. The first opening faces downwards, thus preventing rainwater from entering the air intake channel. Furthermore, the air intake channel extends the distance from the first opening to the air inlet on the cabinet, making it even less likely for rainwater to enter the air inlet. In addition, the air intake channel has a large airflow area, effectively reducing wind resistance and thus improving air-cooling efficiency.

[0018] Meanwhile, a laterally extending slot is provided within the air inlet duct, and an insertion port communicating with the slot is provided through the protective cover. The filter element can be inserted into the slot through the insertion port or removed from the slot through the insertion port. After the filter element is inserted into place, it can cover the corresponding airflow section to ensure that the filtration structure can perform a good filtering and blocking function. The lateral insertion port and slot allow the filter element to be inserted or removed from the side of the protective layer. Compared to conventional structures that are fixed to the protective cover and can only be disassembled from below, the plug-in structure in this technical solution makes the installation and removal of the filter element simple and quick, greatly facilitating maintenance personnel to perform regular cleaning or replacement of the filter element.

[0019] In technical solution two, the slot extends at an angle, with a lower position near the cabinet and a higher position near the insertion port. This angled design ensures that after the filter element is inserted, its own weight will tend to keep it at the innermost part of the slot, helping to prevent the filter element from accidentally sliding out of the slot due to equipment vibration or airflow impact. Furthermore, this angled design also helps guide the filter element during insertion.

[0020] In technical solution three, the filter element includes a support frame that provides structural strength and a filter body that performs the filtration function. The support frame is responsible for mating with the slot. The filter body itself has a soft structure that makes it difficult to slide directly in the slot and maintain its shape. The support frame provides the necessary rigidity to ensure that the filter element does not deform during insertion and removal, and can stably cover the entire air passage cross section after installation, ensuring the filtration effect.

[0021] In technical solution four, a baffle wall is installed inside the air inlet channel, at the corresponding slot position, on the side closest to the cabinet. When the filter element is fully inserted, its inner edge rests on top of the baffle wall. After the filter element is inserted, a gap may exist between its inner edge and the inner wall of the air inlet channel because they cannot fit tightly together. Airflow may bypass the filter element and enter the cabinet directly through this gap, reducing filtration efficiency. By having the inner edge of the filter element rest against the upper surface of the baffle wall, this potential bypass gap is effectively sealed, improving the tightness and effectiveness of filtration.

[0022] In technical solution five, a cover plate is added to the outside of the filter element, that is, the side near the insertion port. When the filter element is installed in place, this cover plate covers the insertion port on the protective cover, thereby preventing rainwater and dust from entering the air intake channel through the insertion port and improving the overall protection level of the filter structure.

[0023] In technical solution six, a handle is added to the cover plate. The handle provides a convenient place for the user to apply force, making it easier to operate whether pushing the filter into the slot or pulling it out of the slot.

[0024] In technical solution seven, a lower support wall and an upper limiting wall are provided on the inner walls of opposite sides of the air inlet channel, which together form a slot for guiding and fixing the filter element. The support wall supports the filter element, and the limiting wall prevents the filter element from tilting upward or falling out. The insertion part formed by the two can fit with the edge of the corresponding side of the filter element, thereby ensuring the smooth sliding of the filter element during insertion and removal and its firm retention after insertion.

[0025] In technical solution eight, the protective cover includes a cover body and a fixed bracket, with the aforementioned slots provided on the fixed bracket. The cover body itself can be formed using a relatively simple process, primarily responsible for its shape and basic protective function. The fixed bracket with its precision slot structure can be manufactured separately and then assembled onto the cover body. This modular design may be more economical and efficient than directly forming complex slots on the cover body. Furthermore, if the slot structure is damaged, only the fixed bracket needs to be replaced, rather than the entire protective cover.

[0026] In technical solution nine, an additional filter screen fixed within the air intake channel is added below the removable filter element. This filter screen typically has a larger pore size, acting as a coarse filter to intercept larger particles and debris, reducing the burden on the main filter element and extending its cleaning cycle and lifespan. Furthermore, when the user removes the filter element from the slot for cleaning or replacement, this fixed filter screen remains in place, preventing larger foreign objects from accidentally entering the cabinet during this time, providing a basic layer of safety.

[0027] Technical solution ten provides a cabinet that adopts the above-mentioned quick-release filter structure. Its filter components can be easily and quickly disassembled and installed, which improves the maintainability of the cabinet and reduces the difficulty and cost of operation and maintenance. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an exploded view of the cabinet quick-assembly and disassembly filter structure involved in an embodiment of the present invention. Figure 1 ;

[0030] Figure 2 This is an exploded view of the cabinet quick-assembly and disassembly filter structure involved in an embodiment of the present invention. Figure 2 ;

[0031] Figure 3 This is a three-dimensional schematic diagram of the cabinet quick-assembly and disassembly filter structure involved in the embodiments of the present invention. Figure 1 ;

[0032] Figure 4 This is a three-dimensional schematic diagram of the cabinet quick-assembly and disassembly filter structure involved in the embodiments of the present invention. Figure 2 ;

[0033] Figure 5 This is a rear view of the cabinet quick-assembly and disassembly filter structure involved in an embodiment of the present invention;

[0034] Figure 6 for Figure 5 Schematic diagram of section AA;

[0035] Figure 7 for Figure 1 A schematic diagram of the structure of the fixed bracket.

[0036] Explanation of key figure labels:

[0037] 10; 11; 12; 13; 14; 15; 16; 17; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18; 18;

[0038] Filter element 20; support frame 21; filter body 22; cover plate 23; operating handle 24;

[0039] Filter screen 30. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are preferred embodiments of the present utility model and should not be considered as excluding other embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0041] Unless otherwise expressly defined, the use of terms such as "first," "second," or "third" in the claims, description, and drawings of this utility model is for distinguishing different objects and not for describing a specific order.

[0042] Unless otherwise expressly defined, in the claims, description, and accompanying drawings of this utility model, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing this utility model and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific protection scope of this utility model.

[0043] Unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" used in the claims, description and drawings of this utility model shall be interpreted broadly to refer to any connection in which there is no displacement or relative rotation relationship between the two parties, including non-removable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or components.

[0044] In the claims, description and accompanying drawings of this utility model, the terms "comprising", "having", and variations thereof are used to mean "including but not limited to".

[0045] Example 1

[0046] Embodiment 1 of this utility model relates to a quick-assembly and disassembly filter structure for a server rack, which is used to filter the air intake of the server rack's air-cooling system. The filter structure is installed on the server rack's cabinet, which has an air inlet. Typically, the air inlet is located on the side wall of the cabinet; in other cases, it may also be located on the top wall. This embodiment uses the example of an air inlet located on the side wall of the cabinet for illustration.

[0047] The cabinet quick-assembly and detachable filter structure involved in this embodiment mainly includes a protective cover 10, a filter element 20, and a filter screen 30.

[0048] Reference Figure 1 and Figure 2 The protective cover 10 is adapted to be fixed to the cabinet, and has a first opening 11 facing downward, forming an air intake channel 12 adapted to connect the first opening 11 and the air inlet; the air intake channel 12 has a slot 14 extending from the side close to the cabinet to the side away from the cabinet, and the protective cover 10 has an insertion port 15 communicating with the slot 14 at the position corresponding to the slot 14; the filter element 20 is adapted to be inserted into or out of the slot 14 through the insertion port 15, and after it is inserted into place, it covers the air passage section in the corresponding air intake channel 12.

[0049] The protective cover 10 includes a cover body 16 and a fixing bracket 18; the cover body 16 is adapted to be fixed to the cabinet and is adapted to form the air intake channel 12 alone or in cooperation with the cabinet; the fixing bracket 18 is fixed to the inner wall of the cover body 16 and is provided with the slot 14.

[0050] In this embodiment, the positional relationships of the components are described using the directions of front, back, left, right, up, and down. The directions closer to and farther from the cabinet are defined in this specification and the claims. Figure 1 The cabinet is located in the front and back direction of the protective cover 10.

[0051] Reference Figure 1 The protective cover 10 includes a cover body 16, a base plate 17, and a fixing bracket 18. The base plate 17 is a flat plate with a second opening 13 extending through it in the front-to-back direction. The base plate 17 is detachably fixed to the side wall of the cabinet by bolts, and the second opening 13 on the base plate 17 seals against the air inlet on the cabinet after the base plate 17 is installed. The sealing between the second opening 13 and the air inlet is achieved by a sealing strip installed between the base plate 17 and the cabinet. (Refer to...) Figure 3 and Figure 4The cover 16 is fixed to the rear surface of the base plate 17, specifically through a flange on the cover 16. The cover 16 is generally a semi-enclosed cover-like component, open at the front and bottom, and has a flange at the front edge. After the cover 16 is fixed to the base plate 17, the two cooperate to form an air inlet channel 12, and a first opening 11 is formed at the bottom of the cover 16. The first opening 11 connects to a second opening 13 through the air inlet channel 12, and then connects to the air inlet of the cabinet.

[0052] Of course, in other embodiments, the protective cover 10 may not include the base plate 17, but the cover 16 may be directly fixed to the side wall of the cabinet, forming the above-mentioned air intake channel 12 and the first opening 11 by cooperating with the side wall of the cabinet. In this case, the first opening 11 can be directly connected to the air intake on the cabinet through the air intake channel 12.

[0053] The aforementioned fixing bracket 18 is bolted to the inner side of the cover 16, through which the protective cover 10 forms a slot 14 for inserting and removing the filter element 20. Meanwhile, referring to... Figure 2 An insertion port 15 is provided on the cover 16 at a position corresponding to the slot 14 on the fixed bracket 18. This insertion port 15 is rectangular in shape and is adapted to the shape and structure of the filter element 20. (Refer to...) Figure 5 and Figure 6 The filter element 20 can be inserted into or removed from the slot 14 through the insertion port 15, thereby enabling quick installation and removal of the filter element 20.

[0054] Among them, reference Figure 6 The edge of the slot 14 closest to the cabinet is lower than the edge furthest from the cabinet. Furthermore, referring to... Figure 7 The air inlet channel 12 has a protruding blocking wall 181 on the inner wall near the cabinet, corresponding to the position of the slot 14. The blocking wall 181 extends in a direction perpendicular to the movement direction of the filter element 20. After the filter element 20 is inserted into the slot 14, its edge near the cabinet abuts against the upper surface of the blocking wall 181 to cover the gap between the filter element 20 and the inner wall of the air inlet channel 12. The air inlet channel 12 has two corresponding support walls 182 protruding on the inner walls on both sides of the movement direction of the filter element 20, and a limiting wall 183 above the support walls 182. Both the support walls 182 and the limiting wall 183 extend from the side near the cabinet to the side away from the cabinet. The support walls 182 and the limiting walls 183 on the same inner wall of the air inlet channel 12 cooperate to form an insertion part 184, and the two corresponding insertion parts 184 cooperate to form the slot 14.

[0055] Specifically, the fixed bracket 18 is a metal frame component with its four sides forming a central opening. Its shape is roughly rectangular, and its four sides have a certain width in the vertical direction, thus forming a frame component with side walls. On the inner surfaces of the two side walls in the left and right directions of the fixed bracket 18, a support wall 182 and a limiting wall 183 are protruding through sheet metal bending or welding. On the same side, one support wall 182 and one limiting wall 183 cooperate to form a joint. Two joints at corresponding heights on the two side walls in the left and right directions cooperate to form a slot 14, which allows the filter element 20 to be inserted or removed. Both the support wall 182 and the limiting wall 183 tend to extend in the front-to-back direction. In this embodiment, the support wall 182 may extend obliquely from front to back and from bottom to top. In other embodiments, the support wall 182 and the limiting wall 183 may extend only horizontally from front to back. Therefore, the statement in this specification and claims that "the air inlet channel 12 is provided with a slot 14 extending from the side near the cabinet toward the side away from the cabinet" only indicates that the slot 14 has an extending tendency in the front-back direction. Meanwhile, at the rear edge of the fixing bracket 18, an opening is provided corresponding to the slot 14. This opening is rectangular in shape and adapts to the shape and structure of the filter element 20. The position of this opening corresponds to the insertion port 15 provided on the cover 16. Of course, in other embodiments, the rear edge of the fixing bracket 18 may not be provided, without affecting the arrangement of the slot 14.

[0056] The slot 14 extends at an angle, with a lower position near the cabinet and a higher position near the insertion port 15. This angled design ensures that after the filter element 20 is inserted, its own weight will cause it to tend to remain on the innermost side of the slot 14, helping to prevent the filter element 20 from accidentally sliding out of the slot 14 due to equipment vibration or airflow impact. Furthermore, this angled design also helps guide the filter element 20 during insertion. Additionally, the support wall 182 supports the filter element 20, and the limiting wall 183 prevents the filter element 20 from tilting upwards or falling out. The resulting insertion part can engage with the corresponding edge of the filter element 20, thereby ensuring smooth sliding of the filter element 20 during insertion and removal and secure retention after insertion.

[0057] Reference Figure 7A blocking wall 181, corresponding to the position of the slot 14, protrudes inward from the inner side of the front frame of the fixed bracket 18. The blocking wall 181 extends in the left-right direction and its two ends connect to the support walls 182 on the left and right sides of the fixed bracket 18 that belong to the same slot 14. When the filter element 20 is fully inserted, its inner edge will fall above the blocking wall 181. After the filter element 20 is fully inserted, there will be a gap between its inner edge and the inner wall of the air inlet channel 12 because they cannot fit tightly together. Airflow may bypass the filter body 22 and enter the cabinet directly through this gap, reducing the filtration efficiency. By allowing the inner edge of the filter element 20 to rest against the upper surface of the blocking wall 181, this potential bypass gap is effectively sealed, improving the tightness and effectiveness of filtration.

[0058] In addition, sealing elements 185 are provided on the front and rear side frames of the fixed bracket 18. The front and rear side frames of the fixed bracket 18 need to be tightly attached to the inner wall of the air inlet channel 12, and it is necessary to ensure that the airflow can only pass through the filter interface of the filter element 20. Therefore, at the position where the fixed bracket 18 is in contact with the inner wall of the air inlet channel 12, sealing elements 185 made of rubber or other materials can be provided to seal the gap between the fixed bracket 18 and the inner wall of the air inlet channel 12.

[0059] The protective cover 10 includes a cover body 16 and a fixing bracket 18, on which the aforementioned slot 14 is provided. The cover body 16 itself can be formed using a relatively simple process, mainly responsible for its shape and basic protective function. The fixing bracket 18 with its precision slot 14 structure can be manufactured separately and then assembled onto the cover body 16. This modular design may be more economical and efficient than directly forming the complex slot 14 on the cover body 16. Furthermore, if the slot 14 structure is damaged, only the fixing bracket 18 needs to be replaced, rather than the entire protective cover 10.

[0060] Furthermore, referring to Figure 1 and Figure 2 The filter element 20 includes a support frame 21 and a filter body 22. The filter body 22 is fixedly mounted on the support frame 21 and forms a filter interface for filtration. The support frame 21 is adapted to form a plug-in engagement with the slot 14. The filter element 20 also includes a cover plate 23. The cover plate 23 is fixedly connected to the edge of the support frame 21 away from the cabinet and is adapted to cover the insertion port 15 corresponding to the slot 14 after the filter element 20 is inserted into the slot 14. The cover plate 23 is also provided with an operating handle 24.

[0061] Specifically, the filter element 20 uses filter cotton as the filter body 22. The support frame 21 of the filter element 20 is a rectangular metal frame component, with its four sides forming an opening in the middle. Several limiting ribs extending horizontally and vertically from this opening are provided on its upper and lower surfaces. The frame and limiting ribs of the support frame 21 define a groove-like structure in the vertical direction for accommodating the filter element 20. The filter element 20 can be installed into this groove-like structure and fixed by the limiting of the frame and ribs. The limiting ribs prevent the flexible filter element 20 from deforming in the middle position. Simultaneously, the thickness of the support frame 21 matches the width of the slot 14, reducing vertical wobbling of the support frame 21 after it is inserted into the slot 14. The filter element 20 includes the support frame 21 providing structural strength and the filter body 22 performing the filtration function, wherein the support frame 21 is responsible for cooperating with the slot 14. The filter element 22 itself has a soft structure that makes it difficult to slide directly in the slot 14 and maintain its shape. The support frame 21 provides the necessary rigidity to ensure that the filter element 20 does not deform during insertion and removal, and can stably cover the entire air passage section after installation, thus ensuring the filtration effect.

[0062] The filter element 20 is also provided with a cover plate 23, which is a flat plate extending in the vertical direction, and its front surface is fixedly connected to the rear side frame of the support frame 21. (Refer to...) Figure 6 When the support frame 21 is inserted into the slot 14, the cover plate 23 will protrude outside the cover 16 and cover the insertion port 15 on the cover 16 corresponding to the slot 14. Furthermore, a fastening through hole can be provided on the cover plate 23, and the cover plate 23 can be fixed to the cover 16 by threaded fasteners, thereby fixing the filter element 20 to the protective cover 10 and improving the installation stability of the filter element 20. Through the cover plate 23, external rainwater and dust can be prevented from entering the air inlet channel 12 through the insertion port 15, improving the overall protection level of the filter structure.

[0063] At the same time, refer to Figure 2 and Figure 6 An operating handle 24 is also provided on the rear side of the cover plate 23, through which the filter element 20 can be easily pulled out from the slot 14.

[0064] In addition, a filter screen 30 is included, which is fixedly disposed within the air inlet channel 12 and located below the slot 14. In this embodiment, the filter screen 30 is fixedly mounted on the aforementioned fixing bracket 18 by its outer frame, and the filter screen 30 can be configured with the same inclined structure as the filter element 20 after it is inserted into place. The filter screen 30 typically has a large pore size, which can act as a coarse filter to intercept larger particles and debris, reducing the burden on the main filter element 20 and extending its cleaning cycle and service life. Furthermore, when the user removes the filter element 20 from the slot 14 for cleaning or replacement, this fixed filter screen 30 remains in its original position, preventing larger foreign objects from accidentally entering the cabinet during this period, providing a basic layer of safety.

[0065] This embodiment relates to a cabinet quick-assembly and disassembly filter structure. The protective cover 10 in this filter structure can be fixed to the cabinet and can cooperate with the cabinet or form an air intake channel 12 on its own. One end of the air intake channel 12 is a first opening 11, and the other end connects to an air inlet on the cabinet. The first opening 11 faces downwards, thus preventing rainwater from entering the air intake channel 12. Furthermore, the air intake channel 12 extends the distance from the first opening 11 to the air inlet on the cabinet, making it even more difficult for rainwater to enter the air inlet. In addition, the air intake channel 12 has a large airflow area, which can effectively reduce wind resistance and thus improve air-cooling efficiency. Meanwhile, a laterally extending slot 14 is provided in the air inlet duct 12, and an insertion port 15 communicating with the slot 14 is provided through the protective cover 10. The filter element 20 can be inserted into the slot 14 through the insertion port 15, or removed from the slot 14 through the insertion port 15. After the filter element 20 is inserted into place, it can cover the corresponding airflow section to ensure that the filter structure can play a good filtering and blocking role. In particular, by providing a lateral insertion port 15 and slot 14, the filter element 20 can be inserted or removed from the side of the protective layer. Compared with the conventional structure that is fixed to the protective cover 10 and can only be disassembled from the bottom of the protective cover 10, the plug-in matching structure in this technical solution makes the installation and removal of the filter element 20 simple and quick, which greatly facilitates maintenance personnel to clean or replace the filter element 20 regularly.

[0066] Example 2

[0067] Embodiment 2 of this utility model relates to a cabinet, which includes a cabinet body and an air inlet on the cabinet body. This cabinet adopts the quick-release filter structure of Embodiment 1 above, and its filter element 20 can be easily and quickly disassembled and installed, which improves the maintainability of the cabinet and reduces the difficulty and cost of operation and maintenance.

[0068] The foregoing description of the specifications and embodiments is intended to explain the scope of protection of this utility model, but does not constitute a limitation on the scope of protection of this utility model. Modifications, equivalent substitutions, or other improvements to the embodiments of this utility model or a portion thereof that can be obtained by those skilled in the art through logical analysis, reasoning, or limited experimentation, based on the teachings of this utility model or the foregoing embodiments, should all be included within the scope of protection of this utility model.

Claims

1. A quick dismounting filter structure of a cabinet, the cabinet being provided with an air inlet, characterized in that, include: A protective cover (10), adapted to be fixed to the cabinet, has a first opening (11) facing downwards and forms an air inlet channel (12) adapted to connect the first opening (11) and the air inlet; the air inlet channel (12) has a slot (14) extending from the side near the cabinet to the side away from the cabinet, and the protective cover (10) has an insertion port (15) communicating with the slot (14) at a position corresponding to the slot (14); and A filter element (20) is adapted to be inserted into or removed from the slot (14) through the insertion port (15) and to cover the air passage section in the corresponding air inlet channel (12) after it is inserted into place.

2. The filter structure according to claim 1, wherein, The side edge of the slot (14) closer to the cabinet is lower than the side edge farther from the cabinet.

3. The filter structure according to claim 1 or 2, wherein the filter structure is characterized by, The filter element (20) includes a support frame (21) and a filter body (22). The filter body (22) is fixedly mounted on the support frame (21) and forms a filter interface for filtering. The support frame (21) is adapted to form a plug-in fit with the slot (14).

4. The filter structure according to claim 3, wherein the filter structure is characterized by, The air inlet channel (12) has a protruding baffle wall (181) on the inner wall near the cabinet, corresponding to the position of the slot (14); the baffle wall (181) extends in a direction perpendicular to the movement direction of the filter (20); after the filter (20) is inserted into the slot (14) in place, its edge near the cabinet abuts against the upper surface of the baffle wall (181) to cover the gap between the filter (20) and the inner wall of the air inlet channel (12).

5. The filter structure according to claim 3, wherein the filter structure is characterized by, The filter element (20) also includes a cover plate (23); the cover plate (23) is fixed to the side edge of the support frame (21) away from the cabinet and is adapted to cover the insertion port (15) corresponding to the slot (14) after the filter element (20) is inserted into the slot (14) in place.

6. The filter structure according to claim 5, wherein the filter structure is characterized by, The cover plate (23) is also provided with an operating handle (24).

7. The filter structure according to claim 1, wherein the filter structure is characterized by, The air inlet channel (12) has two support walls (182) protruding from its inner walls on both sides in the direction of movement of the filter (20), and a limiting wall (183) above the support walls (182). The support walls (182) and the limiting wall (183) both extend from the side closer to the cabinet to the side farther away from the cabinet. The support walls (182) and the limiting wall (183) on the same inner wall of the air inlet channel (12) cooperate to form an insertion part (184), and the two insertion parts (184) corresponding to each other cooperate to form the slot (14).

8. The cabinet quick-assembly and disassembly filter structure as described in claim 7, characterized in that, The protective cover (10) includes a cover body (16) and a fixing bracket (18); the cover body (16) is adapted to be fixed to the cabinet and is adapted to form the air intake channel (12) alone or in cooperation with the cabinet; the fixing bracket (18) is fixed to the inner wall of the cover body (16) and is provided with the slot (14).

9. The filter structure according to claim 1, wherein, It also comprises a filter screen (30) which is fixed in the air inlet channel (12) and below the slot (14).

10. A cabinet comprising a cabinet body, the cabinet body being provided with an air inlet, characterized in that, The cabinet quick dismounting filter structure adopts the cabinet quick dismounting filter structure according to any one of claims 1-9.

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