Waterproof frequency conversion control cabinet for outdoor operation
By using a curved exhaust pipe and a labyrinth-type sealing structure in the frequency converter control cabinet, the problem of rainwater entering during outdoor operations is solved, the waterproof performance is improved, and the safety of electrical components is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUFU JIAXIN ELECTRIC
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-24
AI Technical Summary
When it rains, rainwater can easily enter the frequency converter control cabinet used for outdoor operations, causing short circuits or damage to electrical components. Existing heat dissipation designs cannot effectively prevent water from entering.
It adopts a curved exhaust pipe to connect with the outdoor atmosphere, combined with a labyrinth-type sealing structure and complex sealing components, including staggered sealing partitions and inclined water baffles, to ensure that rainwater does not enter the enclosure.
It effectively prevents rainwater from entering the control cabinet, ensuring the safety of electrical components, avoiding short circuits and damage, and achieving improved waterproof performance.
Smart Images

Figure CN224164986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of frequency converter control cabinet technology, and more specifically to a waterproof frequency converter control cabinet for outdoor operation. Background Technology
[0002] Variable frequency control cabinets are mainly used to adjust the operating frequency of equipment, enabling smooth equipment startup and reducing the damage to the motor caused by the large current generated when the equipment is started directly. During operation, the internal components of the variable frequency control cabinet will generate a lot of heat. If the heat cannot be dissipated in time, it will cause serious damage to the control cabinet.
[0003] Currently, fans and vents are typically used together for heat dissipation. However, for frequency converter control cabinets used in outdoor operations, rainwater can easily enter the cabinet during rainfall in order to ensure heat dissipation. This may cause the electrical components of the frequency converter control cabinet to get wet, or even cause short circuits or damage. To solve the above problems, we propose a waterproof frequency converter control cabinet for outdoor operations. Utility Model Content
[0004] One advantage of this utility model is that it provides a waterproof frequency converter control cabinet for outdoor operation. It is connected to the outdoor atmosphere through a curved exhaust pipe, which ensures that no rainwater will enter the cabinet through the ventilation grille during air circulation. At the same time, a new sealing structure is set between the cabinet door and the cabinet body to ensure that rainwater cannot seep into the cabinet body from this point. A water baffle is also set on the cabinet door to reduce the amount of rainwater flowing through the gap between the cabinet door and the cabinet body.
[0005] To achieve at least one of the above advantages of this utility model, this utility model provides a waterproof frequency converter control cabinet for outdoor operation, including a cabinet, ventilation components on both sides of the cabinet, and a door hinged to the front of the cabinet; a sealing component is also provided between the cabinet and the door, the sealing component including several interlocking sealing partitions, the several sealing partitions forming a labyrinth-type sealing structure.
[0006] According to one embodiment of the present invention, the ventilation component includes ventilation openings fixedly disposed on both sides of the housing, a ventilation grille fixedly disposed on the inner edge of the ventilation opening, and an exhaust pipe fixedly disposed on the outer side of the ventilation opening.
[0007] According to one embodiment of the present invention, the exhaust pipe has a curved cylinder structure, and the opening at the outer end of the exhaust pipe is vertically downward.
[0008] According to one embodiment of the present invention, the top of the box body is provided with a box top, which is inclined and its front end is lower than its rear end.
[0009] According to one embodiment of the present invention, an inclined baffle plate is fixedly provided on the front end of the top of the tank.
[0010] According to one embodiment of the present invention, the sealing assembly includes a door top plate and a second sealing partition plate fixedly disposed on the periphery of the door, the second sealing partition plate being located on the inner side of the door top plate;
[0011] The sealing assembly also includes a top plate, a third sealing partition, and a first sealing partition that are fixedly installed around the perimeter of the enclosure;
[0012] When the container door is closed, the container top plate, door top plate, third sealing partition, first sealing partition and second sealing partition are arranged in sequence from top to bottom.
[0013] According to one embodiment of the present invention, the lower surface of the box top plate is in contact with the upper surface of the door top plate;
[0014] The lower surface of the first sealing partition is in contact with the upper surface of the second sealing partition.
[0015] According to one embodiment of the present invention, the third sealing partition is inclined, and a flexible strip is fixedly provided on the outer end of the third sealing partition, and the flexible strip contacts the connection between the door panel and the top panel of the door.
[0016] According to one embodiment of the present invention, a guide groove is provided on the inner end of the third sealing partition.
[0017] According to one embodiment of the present invention, a sealing strip is provided at the lower end of the first sealing partition, and the sealing strip is in close contact with the end of the second sealing partition. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a partially enlarged schematic diagram of the present invention. Figure 1 ;
[0020] Figure 3 This is a partially enlarged schematic diagram of the present invention. Figure 2 ;
[0021] Figure 4 This is a schematic diagram of the external structure of this utility model;
[0022] In the attached diagram: 1. Box body, 2. Box top, 3. Box door, 4. Second mounting strip, 5. First mounting strip, 6. Ventilation grille, 7. Third mounting strip, 8. First sealing partition, 9. Second sealing partition, 10. Water baffle, 11. Hinge, 12. Drainage channel, 13. Sealing strip, 14. Third sealing partition, 15. Flexible strip, 16. Exhaust pipe. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Attached Figure 4 The present invention will be described in more detail below.
[0024] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.
[0025] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do 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. Therefore, the above terms should not be construed as limitations on this utility model.
[0026] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.
[0027] This utility model provides a waterproof frequency converter control cabinet for outdoor operation, including a cabinet 1. Ventilation components are provided on both sides of the cabinet 1, and a door 3 is hinged to the front of the cabinet 1. A sealing component is also provided between the cabinet 1 and the door 3, comprising several interlocking sealing partitions forming a labyrinth-type sealing structure. The ventilation component includes ventilation openings fixedly installed on both sides of the cabinet 1, with ventilation grilles 6 fixedly installed on the inner edge of the ventilation openings and exhaust pipes 16 fixedly installed on the outer side of the ventilation openings. The exhaust pipes 16 have a curved cylindrical structure, with the opening at the outer end of the exhaust pipes 16 pointing vertically downwards. A cabinet top 2 is provided on the top of the cabinet 1, with the front end of the top 2 being lower than its rear end. An inclined baffle 10 is fixedly installed at the front end of the cabinet top 2. The sealing component includes a door top fixedly installed around the door 3. The sealing assembly includes a top plate 2, a third sealing partition 14, and a first sealing partition 8, all fixedly disposed around the periphery of the enclosure 1. When the enclosure door 3 is closed, the top plate 2, the top plate, the third sealing partition 14, the first sealing partition 8, and the second sealing partition 9 are arranged sequentially from top to bottom. The lower surface of the top plate 2 contacts the upper surface of the top plate. The lower surface of the first sealing partition 8 contacts the upper surface of the second sealing partition 9. The third sealing partition 14 is inclined, and a flexible strip 15 is fixedly disposed on the outer end of the third sealing partition 14, which contacts the connection between the door panel and the top plate. A guide groove 12 is disposed on the inner end of the third sealing partition 14. A sealing strip 13 is disposed on the lower end of the first sealing partition 8, which is in close contact with the end of the second sealing partition 9.
[0028] The first embodiment of this utility model is as follows:
[0029] A waterproof frequency converter control cabinet for outdoor operation includes a cabinet 1. The front of the cabinet 1 is hinged to a door 3 via a hinge 11. The inner side of the cabinet 1 is provided with a vertical first mounting strip 5 and a horizontal third mounting strip 7 for installing electrical equipment inside the control cabinet. Two second mounting strips 4 are fixedly installed on the door 3 for installing electrical equipment.
[0030] Ventilation components are provided on both sides of the enclosure 1 to enable communication between the internal and external air. Fans can be installed on the inside for ventilation and heat dissipation. The ventilation components include vents fixedly installed on both sides of the enclosure 1, and ventilation grilles 6 are fixedly installed on the inner edge of the vents. The ventilation grilles 6 can filter out pollutants such as willow catkins and dust in the air. Fans can be installed inside the ventilation grilles 6. An exhaust pipe 16 is fixedly installed on the outer side of the vents. The exhaust pipe 16 has a curved cylindrical structure, and the opening at the outer end of the exhaust pipe 16 is vertically downward. When it rains, rainwater will not enter the enclosure 1 from the exhaust pipe 16, ensuring waterproof performance.
[0031] A sealing assembly is also provided between the box body 1 and the box door 3. The sealing assembly includes several intersecting sealing partitions, which form a labyrinth-type sealing structure. This labyrinth-type sealing structure ensures that rainwater will not seep into the box body 1.
[0032] The top of the box body 1 is provided with a box top 2. The box top 2 is inclined, with its front end lower than its rear end. When it rains, rainwater falls on the box top 2 and flows forward along the inclination. An inclined baffle 10 is fixedly provided at the front end of the box top 2. The front side of the baffle 10 is raised to block the water flow and make it converge to both sides and flow down.
[0033] The sealing assembly includes a top panel and a second sealing partition 9 fixedly disposed around the periphery of the door 3, with the second sealing partition 9 located inside the top panel; the sealing assembly also includes a top panel 2, a third sealing partition 14, and a first sealing partition 8 fixedly disposed around the periphery of the enclosure 1; the top panel 2, the third sealing partition 14, and the first sealing partition 8 are fixed to the enclosure 1, and the top panel and the second sealing partition 9 are located on the door 3; when the door 3 is closed, the top panel 2, the top panel, the third sealing partition 14, the first sealing partition 8, and the second sealing partition 9 are arranged sequentially from top to bottom to form a complex labyrinth-type sealing structure.
[0034] The lower surface of the top plate 2 contacts the upper surface of the top plate of the door, and the lower surface of the first sealing partition 8 contacts the upper surface of the second sealing partition 9, which can prevent rainwater from seeping in. The third sealing partition 14 is set at an angle, and a soft strip 15 is fixedly set on the outer end of the third sealing partition 14. The soft strip 15 contacts the connection between the door panel and the top plate of the door. The soft strip 15 can both hold the door 3 and play a soft contact role, and also play a certain sealing role. The inner end of the third sealing partition 14 is provided with a guide groove 12. Even if a small amount of rainwater seeps in, it will flow outward along the guide groove 12 and will only stay at the door 3 and will not flow into the box 1.
[0035] A sealing strip 13 is provided at the lower end of the first sealing partition 8. The sealing strip 13 is in close contact with the end of the second sealing partition 9, serving as the final seal and achieving a complete sealing effect for the box door 3.
[0036] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.
[0037] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.
Claims
1. A waterproof frequency converter control cabinet for outdoor operation, characterized in that: The device includes a housing, on both sides of which ventilation components are provided, and a door is hinged to the front of the housing. A sealing component is also provided between the housing and the door, and the sealing component includes several interlocking sealing partitions, which together form a labyrinth-type sealing structure.
2. The waterproof frequency converter control cabinet for outdoor operation according to claim 1, characterized in that: The ventilation assembly includes ventilation openings fixedly installed on both sides of the housing, ventilation grilles fixedly installed on the inner edge of the ventilation openings, and exhaust pipes fixedly installed on the outer side of the ventilation openings.
3. The waterproof frequency converter control cabinet for outdoor operation according to claim 2, characterized in that: The exhaust pipe has a curved cylindrical structure, and the opening at the outer end of the exhaust pipe is vertically downward.
4. The waterproof frequency converter control cabinet for outdoor operation according to claim 1, characterized in that: The top of the box is provided with a box top, which is inclined and its front end is lower than its rear end.
5. The waterproof frequency converter control cabinet for outdoor operation according to claim 4, characterized in that: An inclined baffle is fixedly installed on the front end of the top of the tank.
6. The waterproof frequency converter control cabinet for outdoor operation according to claim 1, characterized in that: The sealing assembly includes a top panel fixedly disposed around the perimeter of the door and a second sealing partition, wherein the second sealing partition is located on the inner side of the top panel. The sealing assembly also includes a top plate, a third sealing partition, and a first sealing partition, which are fixedly installed on the periphery of the enclosure. When the box door is closed, the box top plate, door top plate, third sealing partition, first sealing partition and second sealing partition are arranged in sequence from top to bottom.
7. The waterproof frequency converter control cabinet for outdoor operation according to claim 6, characterized in that: The lower surface of the box top plate is in contact with the upper surface of the door top plate; The lower surface of the first sealing partition is in contact with the upper surface of the second sealing partition.
8. The waterproof frequency converter control cabinet for outdoor operation according to claim 6, characterized in that: The third sealing partition is inclined, and a flexible strip is fixedly installed on the outer end of the third sealing partition. The flexible strip contacts the connection between the door panel and the top panel of the door.
9. The waterproof frequency converter control cabinet for outdoor operation according to claim 6, characterized in that: The inner end of the third sealing partition is provided with a flow guide groove.
10. The waterproof frequency converter control cabinet for outdoor operation according to claim 6, characterized in that: A sealing strip is provided at the lower end of the first sealing partition, and the sealing strip is in close contact with the end of the second sealing partition.