Dustproof power distribution cabinet
By adopting a first dustproof frame and sealing gasket, a second dustproof frame and docking area design in the power distribution cabinet, combined with a sliding connection structure and sealing ring, the problem of insufficient sealing between the cabinet door and the cabinet body is solved, achieving a balance between dust prevention and heat dissipation.
Patent Information
- Application Number
- CN202520362891.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-03-04
AI Technical Summary
The existing distribution cabinet has an insufficient sealing structure between the cabinet door and the cabinet body, which makes it easy for dust to enter the cabinet body. The sealing performance is further reduced after the sealing ring ages.
The design incorporates a first dustproof frame with a sealing gasket, a second dustproof frame and a docking area, a sliding connection structure and a sealing ring to ensure the airtightness of the cabinet door and the cabinet body. The design of the exhaust box and cooling fan prevents dust from entering and heat from being discharged.
It effectively prevents dust from entering the cabinet, maintains the airtightness between the cabinet door and the cabinet body, avoids the problem of wire harness getting stuck during the opening and closing process of traditional hinged structures, and ensures heat dissipation.
Smart Images

Figure CN223967526U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the field of power distribution cabinet technology, specifically to a dustproof power distribution cabinet. Background Technology
[0002] In the dustproof design of power distribution cabinets, a sealing ring structure is usually installed between the cabinet body and the cabinet door. At the same time, a filter structure is installed at the air vents on the power distribution cabinet for heat dissipation. Additionally, sealing plugs are added to the wire holes for wire harness routing to achieve the dustproof function design of the power distribution cabinet.
[0003] An existing patent (publication number: CN219226944U) discloses a dustproof power distribution cabinet, including a cabinet body, a cabinet door, and a heat dissipation mesh. The cabinet door is vertically hinged to one side of the cabinet body, and two heat dissipation meshes are installed opposite each other on the side of the cabinet body. A heat dissipation mechanism is installed at the inner edge of the cabinet body. The heat dissipation mechanism includes heat dissipation elements, a fixing frame A, a fixing frame B, and a cooling fan. This dustproof power distribution cabinet uses a large-area heat dissipation element in conjunction with two upper and lower fixing frames installed inside the cabinet body, dividing the cabinet body into two areas. The front part is used as a mounting cavity for installing electrical control equipment, and the rear part, together with the heat dissipation meshes on both sides, forms an independent heat dissipation cavity. The large-area heat dissipation element absorbs heat from inside the mounting cavity and conducts it to the heat dissipation fins located in the heat dissipation cavity. The cooling fan, together with the heat dissipation mesh, forces outside air to pass through the heat dissipation fins, thereby achieving heat dissipation. Therefore, the cabinet body can be completely sealed during operation while ensuring its heat dissipation performance.
[0004] In implementing this solution, the inventors used a hinged structure for the cabinet door and the cabinet body. This assembly structure requires a sealing ring to be installed between the cabinet door and the cabinet body to prevent dust from entering the cabinet body due to insufficient sealing of the assembly gap reserved for opening and closing. As the equipment is used for a longer period of time, the aging of the sealing ring will cause the gap between the cabinet body and the cabinet door to increase, which will increase the probability of dust entering the cabinet body. Utility Model Content
[0005] 1. Technical problem solved by the utility model:
[0006] This utility model provides a dustproof power distribution cabinet, which solves the technical problem of insufficient sealing in the existing hinge structure between the equipment cabinet and the cabinet door.
[0007] 2. Technical Solution:
[0008] To achieve the above objectives, the technical solution provided by this utility model is: a dustproof power distribution cabinet, comprising the following structure:
[0009] The cabinet has a first dustproof frame and a second dustproof frame fixed at the front opening. A sealing gasket is adhered to the outside of the first dustproof frame, and a mating area is defined between the middle of the second dustproof frame and the outside of the first dustproof frame.
[0010] The cabinet door has an extension frame fixed on its left side, and a slide is hinged to the rear end of the extension frame. The right side of the slide is slidably connected to the left side of the cabinet body, and the top and bottom of the slide are slidably connected to the top and bottom of the mounting frame, respectively.
[0011] Furthermore, a backup chassis is fixedly installed on the rear side of the cabinet, the inner side of which is connected to the inner side of the cabinet. A first sealing ring is provided at the connection between the backup chassis and the cabinet. A cable management box is fixedly installed on the right side of the cabinet, and a second sealing ring is provided at the connection between the cable management box and the cabinet.
[0012] Furthermore, an exhaust box is detachably snapped onto the exhaust port at the top of the cabinet. A cooling fan is fixedly installed in the middle of the exhaust box. The air intake end of the cooling fan extends to the inside of the cabinet. A guide cone sleeve is detachably snapped onto the top of the exhaust box. The exhaust end of the cooling fan extends to the air intake of the guide cone sleeve. An exhaust pipe is fixedly installed at the exhaust port of the guide cone sleeve. The exhaust port of the exhaust pipe extends to the bottom of the cabinet.
[0013] Furthermore, the rear edge of the cabinet door extends into the mating area, the rear side of the cabinet door extends to the front opening of the cabinet body, the inner rear end of the cabinet door is sleeved with the outer side of the sealing gasket, and the outer rear end of the cabinet door is sleeved with the middle of the second dustproof frame.
[0014] Furthermore, the right side of the mounting bracket is fixedly connected to the left side of the cabinet, and a limiting plate is fixedly provided at the front end of the mounting bracket. The rear right side of the limiting plate abuts against the left front end of the slide, and the front right side of the limiting plate abuts against the left rear end of the extension bracket.
[0015] Furthermore, an air inlet box is detachably snapped onto the front end of the cabinet door where it abuts the air inlet, and an air inlet cover is detachably snapped onto the front end of the air inlet box. An air inlet is fixed on the surface of the air inlet cover, and an air inlet pipe is inserted into the inner side of the air inlet box. An air inlet filter is snapped onto the air inlet of the air inlet pipe, and the air outlet at the rear end of the air inlet pipe extends to the inner side of the cabinet.
[0016] 3. Beneficial effects:
[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:
[0018] This utility model provides a dustproof power distribution cabinet. The first dustproof frame works in conjunction with the sealing gasket to ensure the sealing between the cabinet door and the cabinet body when the cabinet door is closed on the front side. The second dustproof frame and the docking area are set to shield the outside of the cabinet door, so as to prevent dust from falling into the cabinet body when the cabinet door is opened after dust has accumulated on the edge of the cabinet door. At the same time, the cooperation of the first dustproof frame and the second dustproof frame can still ensure the sealing between the cabinet door and the cabinet body even if the sealing gasket fails.
[0019] This utility model provides a dustproof power distribution cabinet. The cabinet door needs to be pulled out horizontally at the front of the cabinet. After the connection between the extension frame and the slide is away from the limiting plate, the cabinet door and the extension frame can be deflected at the front of the slide to open the cabinet door at the front of the cabinet. This opening and closing method of the cabinet door can also avoid the problem of the wire harness inside the cabinet getting stuck during the opening and closing process of the traditional hinged structure.
[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0021] Figure 1 This is a perspective view of the structure of this utility model;
[0022] Figure 2 This is a half-sectional perspective view of the air intake box structure of this utility model;
[0023] Figure 3 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;
[0024] Figure 4 This is an exploded view of the cabinet structure of this utility model;
[0025] Figure 5 This is a half-sectional perspective view of the cabinet structure of this utility model;
[0026] Figure 6 This is a three-dimensional view of the cabinet door structure of this utility model;
[0027] Figure 7 This is a utility model Figure 6 Enlarged view of the structure at point B.
[0028] Figure label:
[0029] Cabinet-1; Spare Chassis-11; Cable Management Box-12;
[0030] First dustproof frame-2; sealing gasket-21;
[0031] Second dustproof frame -3;
[0032] Cabinet door - 4; Extension rack - 41; Slide rack - 42; Mounting rack - 43; Limiting plate - 44;
[0033] Air intake box-5; Air intake shroud-51; Air intake pipe-52; Air intake filter-53;
[0034] Exhaust box-6; Cooling fan-61; Guide cone sleeve-62; Exhaust pipe-63. Detailed Implementation
[0035] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element; the terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0038] See attached document Figure 1-7 This utility model provides a dustproof power distribution cabinet, which includes the following structure:
[0039] Cabinet 1, with a first dustproof frame 2 and a second dustproof frame 3 fixed at the front opening of the cabinet 1 respectively. A sealing gasket 21 is glued to the outside of the first dustproof frame 2, and a docking area is divided between the middle of the second dustproof frame 3 and the outside of the first dustproof frame 2.
[0040] Cabinet door 4, with an extension frame 41 fixed on the left side of cabinet door 4. A slide 42 is hinged to the rear end of the extension frame 41. The right side of the slide 42 is slidably connected to the left side of cabinet body 1. The top and bottom of the slide 42 are slidably connected to the top and bottom of mounting frame 43, respectively.
[0041] In this embodiment, a backup chassis 11 is fixedly installed on the rear side of the cabinet 1. The inner side of the backup chassis 11 is connected to the inner side of the cabinet 1. A first sealing ring is provided at the connection between the backup chassis 11 and the cabinet 1. A cable management box 12 is fixedly installed on the right side of the cabinet 1. A second sealing ring is provided at the connection between the cable management box 12 and the cabinet 1.
[0042] Due to limited internal installation space in cabinet 1, a spare chassis 11 can be added to meet the customer's customization needs. A cable management box 12 can be added at the cable routing port of cabinet 1 to prevent the sealing rings and other rubber seals at the cable routing port from being directly exposed to the external environment.
[0043] In this embodiment, an exhaust box 6 is detachably snapped onto the exhaust port at the top of the cabinet 1. A cooling fan 61 is fixed in the middle of the exhaust box 6. The air inlet end of the cooling fan 61 extends to the inside of the cabinet 1. A guide cone sleeve 62 is detachably snapped onto the top of the exhaust box 6. The exhaust end of the cooling fan 61 extends to the air inlet of the guide cone sleeve 62. An exhaust pipe 63 is fixed at the exhaust port of the guide cone sleeve 62. The exhaust port of the exhaust pipe 63 extends to the bottom of the cabinet 1.
[0044] The exhaust box 6 and the cooling fan 61 work together to exhaust the heat generated by the electrical equipment inside the cabinet 1 into the guide cone sleeve 62. The guide cone sleeve 62 and the exhaust pipe 63 work together to exhaust the hot air inside the cabinet 1. The exhaust port of the exhaust pipe 63 extends to the bottom of the cabinet 1 to prevent external rainwater from entering the cabinet 1 through the exhaust pipe 63.
[0045] In this embodiment, the rear edge of the cabinet door 4 extends into the docking area, the rear side of the cabinet door 4 extends to the front opening of the cabinet body 1, the inner rear end of the cabinet door 4 is sleeved with the outer side of the sealing gasket 21, and the outer rear end of the cabinet door 4 is sleeved with the middle part of the second dustproof frame 3.
[0046] The first dustproof frame 2 works in conjunction with the sealing gasket 21 to ensure the sealing between the cabinet door 4 and the cabinet body 1 when the cabinet door 4 is closed on the front side of the cabinet body 1. The second dustproof frame 3 and the mating area are set to shield the outside of the cabinet door 4, so as to prevent dust from falling into the cabinet body 1 when the cabinet door 4 is opened after dust has accumulated on its edge. At the same time, the cooperation of the first dustproof frame 2 and the second dustproof frame 3 can still ensure the sealing between the cabinet door 4 and the cabinet body 1 even if the sealing gasket 21 fails.
[0047] In this embodiment, the right side of the mounting bracket 43 is fixedly connected to the left side of the cabinet 1, and a limiting plate 44 is fixedly provided at the front end of the mounting bracket 43. The rear right side of the limiting plate 44 abuts against the left front end of the slide 42, and the front right side of the limiting plate 44 abuts against the left rear end of the extension bracket 41.
[0048] The limiting plate 44 cooperates with the mounting bracket 43 to limit the deflection position of the extension bracket 41 at the front of the slide 42. When the connection between the extension bracket 41 and the slide 42 is on the right side of the limiting plate 44, the cabinet 1 is facing the cabinet 1, which makes it convenient for the cabinet door 4 to be inserted into the docking area, thus completing the cooperation between the cabinet door 4 and the sealing gasket 21 and the second dustproof frame 3.
[0049] During the process of opening cabinet door 4, cabinet door 4 needs to be pulled out horizontally at the front of cabinet body 1. After the connection between extension frame 41 and slide 42 is away from limit plate 44, cabinet door 4 and extension frame 41 can be deflected at the front of slide 42 to complete the opening of cabinet door 4 at the front of cabinet body 1. This opening and closing method of cabinet door 4 can also avoid the problem of wire harness in cabinet body 1 getting stuck during the opening and closing process of traditional hinged structure.
[0050] In this embodiment, an air inlet box 5 is detachably snapped onto the front end of the cabinet door 4 where it abuts the air inlet. An air inlet cover 51 is detachably snapped onto the front end of the air inlet box 5. An air inlet is fixed on the surface of the air inlet cover 51. An air inlet pipe 52 is inserted into the inner side of the air inlet box 5. An air inlet filter element 53 is snapped onto the air inlet of the air inlet pipe 52. The air outlet at the rear end of the air inlet pipe 52 extends to the inner side of the cabinet body 1.
[0051] The air intake box 5 and the air intake cover 51 work together to prevent the air intake filter element 53 from directly contacting the external environment. The air intake filter element 53, the air intake pipe 52 and the cooling fan work together to complete the air exhaust process inside the cabinet 1.
[0052] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A dustproof power distribution cabinet, characterized in that: Includes the following structure: Cabinet (1), a first dustproof frame (2) and a second dustproof frame (3) are fixed at the front opening of the cabinet (1), a sealing gasket (21) is glued to the outside of the first dustproof frame (2), and a docking area is divided between the middle of the second dustproof frame (3) and the outside of the first dustproof frame (2). Cabinet door (4), an extension frame (41) is fixedly provided on the left side of the cabinet door (4), a slide (42) is hinged to the rear end of the extension frame (41), the right side of the slide (42) is slidably connected to the left side of the cabinet body (1), and the top and bottom of the slide (42) are slidably connected to the top and bottom of the mounting frame (43) respectively.
2. The dustproof power distribution cabinet according to claim 1, characterized in that: A backup chassis (11) is fixedly installed on the rear side of the cabinet (1). The inner side of the backup chassis (11) is connected to the inner side of the cabinet (1). A first sealing ring is provided at the connection between the backup chassis (11) and the cabinet (1). A cable tray (12) is fixedly installed on the right side of the cabinet (1). A second sealing ring is provided at the connection between the cable tray (12) and the cabinet (1).
3. A dustproof power distribution cabinet according to claim 1, characterized in that: An exhaust box (6) is detachably snapped onto the exhaust port at the top of the cabinet (1). A cooling fan (61) is fixedly installed in the middle of the exhaust box (6). The air intake end of the cooling fan (61) extends to the inside of the cabinet (1). A guide cone sleeve (62) is detachably snapped onto the top of the exhaust box (6). The exhaust end of the cooling fan (61) extends to the air intake of the guide cone sleeve (62). An exhaust pipe (63) is fixedly installed at the exhaust port of the guide cone sleeve (62). The exhaust port of the exhaust pipe (63) extends to the bottom of the cabinet (1).
4. A dustproof power distribution cabinet according to claim 1, characterized in that: The rear edge of the cabinet door (4) extends into the docking area, the rear side of the cabinet door (4) extends to the front opening of the cabinet body (1), the inner rear end of the cabinet door (4) is sleeved with the outer side of the sealing gasket (21), and the outer rear end of the cabinet door (4) is sleeved with the middle part of the second dustproof frame (3).
5. A dustproof power distribution cabinet according to claim 1, characterized in that: The right side of the mounting bracket (43) is fixedly connected to the left side of the cabinet (1). A limiting plate (44) is fixedly provided at the front end of the mounting bracket (43). The rear right side of the limiting plate (44) abuts against the left front end of the slide (42). The front right side of the limiting plate (44) abuts against the left rear end of the extension frame (41).
6. A dustproof power distribution cabinet according to claim 1, characterized in that: An air inlet box (5) is detachably snapped onto the front end of the cabinet door (4) at the air inlet. An air inlet cover (51) is detachably snapped onto the front end of the air inlet box (5). An air inlet is fixed on the surface of the air inlet cover (51). An air inlet pipe (52) is inserted into the inner side of the air inlet box (5). An air inlet filter (53) is snapped onto the air inlet of the air inlet pipe (52). The air outlet of the rear end of the air inlet pipe (52) extends to the inner side of the cabinet body (1).
Citation Information
Patent Citations
Dustproof power distribution cabinet
CN219226944U