Novel low-voltage control cabinet

Abstract

The utility model discloses a novel low-voltage control cabinet, which comprises a cabinet body, one side of the cabinet body is hinged with a cabinet door, the cabinet body and the cabinet door form an accommodating cavity for accommodating control equipment, and the side wall of the accommodating cavity is provided with a fan; the air exhaust assembly is arranged on the side portion of the cabinet body, the air exhaust assembly and the fan are located on the same side and coincide in position, the air exhaust assembly comprises a frame and a swing part movably arranged on the frame, and the swing part can act outwards to form an air exhaust gap when the fan works; and the air exhaust gap is increased along with the increase of the wind power of the fan. The fan is arranged on the side wall of the containing cavity, and the exhaust assembly is innovatively designed. The exhaust assembly comprises a frame and a swing part movably arranged on the frame, the swing part can act outwards to form an exhaust gap when the fan works, and the exhaust gap is increased along with increase of wind power of the fan. The design not only improves the heat dissipation efficiency, but also can automatically adjust the size of the air outlet according to the temperature in the cabinet body, thereby achieving the intelligent heat dissipation.

Description

Technical Field

[0001] The utility model relates to the technical field of control cabinets, in particular to a novel low-voltage control cabinet. Background Art

[0002] In the fields of power systems and industrial automation, low-voltage control cabinets are key equipment responsible for controlling, protecting, and distributing electrical energy. Traditional low-voltage control cabinet designs often overlook internal heat dissipation, leading to rapid temperature increases during extended operation or under high loads. This impacts the proper operation of control equipment (such as circuit breakers, knife switches, intelligent controllers, and control switches), and can even cause equipment damage or malfunction.

[0003] To address this issue, fans are typically installed on the side walls of low-voltage control cabinets to promote air circulation inside and outside the cabinet, achieving a cooling effect. However, this simple heat dissipation method has many drawbacks. For example, the fan's cooling efficiency is affected by factors such as the cabinet structure, fan power, and layout, making it difficult to ensure uniform temperature distribution within the cabinet. More importantly, when the fan stops working, the cabinet lacks effective dust protection, allowing dust to easily enter the cabinet through the fan opening, posing a potential threat to the control equipment. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In order to solve the above problems, the utility model proposes a new low-voltage control cabinet, which aims to solve the problem in the prior art that when the fan stops working, the cabinet lacks effective dust prevention measures, and dust can easily enter the cabinet through the fan port, posing a potential threat to the control equipment.

[0006] (2) Technical solution

[0007] The utility model discloses a novel low-voltage control cabinet, which comprises:

[0008] A cabinet body, with a cabinet door hinged on one side, the cabinet body and the cabinet door forming a cavity for accommodating the control device, and a fan is provided on the side wall of the cavity;

[0009] An exhaust assembly is arranged on the side of the cabinet. The exhaust assembly and the fan are on the same side and their positions overlap. The exhaust assembly includes a frame and a swinging member movably arranged on the frame. The swinging member can move outward when the fan is working to form an exhaust gap. The exhaust gap increases as the wind force of the fan increases.

[0010] In the present invention, the top of the frame is provided with an opening to form a semi-enclosed structure, and the top of the frame is provided with a plurality of step-by-step sliding grooves vertically downward, and the swinging member is arranged in the sliding grooves;

[0011] The swinging member includes a main fan blade body and connecting rods arranged at both ends of the fan blade body. The bottom of the sliding groove is provided with a circular groove for facilitating the connection and rotation of the connecting rod.

[0012] In the present invention, the frame is further provided with a plurality of stop walls arranged step by step, for preventing the swing member from rotating in the reverse direction, and the stop walls are arranged between the two sliding grooves.

[0013] In the present invention, a magnetic sheet is provided on the back of the fan blade, a magnetic block is provided on the retaining wall and is matched with the magnetic sheet, and the magnetic block is embedded in the retaining wall.

[0014] In the present invention, a dustproof portion is further provided at the bottom of the main fan blades to prevent dust from entering the cabinet.

[0015] In the present invention, the dustproof part is a combination of one or more of bristles made of ultra-fine fiber material and rubber sheets made of soft material.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) The present invention is provided with a fan on the side wall of the chamber and innovatively designed with an exhaust assembly. The exhaust assembly comprises a frame and a swinging member movably mounted on the frame. The swinging member can move outward when the fan is operating to form an exhaust gap, and the exhaust gap increases as the wind force of the fan increases. This design not only improves the heat dissipation efficiency, but also automatically adjusts the size of the exhaust port according to the temperature inside the cabinet, thus achieving intelligent heat dissipation.

[0019] (2) The main body of the blade of the swing member in the present invention is made of lightweight materials (such as foam plastics, polymer-based foam plastics, PPS plastics, thermoplastic composite materials, etc.), which effectively reduces the load when the fan rotates and reduces energy consumption. At the same time, the use of lightweight materials also improves the flexibility and durability of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the low-voltage control cabinet;

[0022] Figure 2 This is a schematic diagram of the internal structure of the low-voltage control cabinet;

[0023] Figure 3 Schematic diagram of the three-dimensional structure of the frame;

[0024] Figure 4 It is a schematic diagram of the enlarged structure of the local structure;

[0025] Figure 5 Schematic diagram of the working status of the exhaust component;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the swing part.

[0027] 10. Cabinet body, 11. Cabinet door, 12. Exhaust assembly, 13. Cavity, 14. Fan, 15. Frame, 16. Retaining wall, 17. Slide groove, 18. Circular groove, 19. Swinging part, 20. Connecting rod, 21. Fan blade body, 22. Magnetic sheet, 23. Magnetic block, 24. Dustproof part. DETAILED DESCRIPTION

[0028] Compared to the embodiments shown in the drawings, feasible embodiments within the scope of protection of the present disclosure may have fewer components, additional components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0029] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the art to which this invention belongs. The terms "first," "second," and similar expressions used in the specification and claims of this utility model patent application do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "a" or "an" do not necessarily indicate a quantitative limitation. Terms such as "include," "comprising," or "having" mean that the element or object preceding the term encompasses the elements or objects listed after the term, and their equivalents, without excluding other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections or communications as shown in the accompanying drawings, but may include equivalent connections or communications, whether direct or indirect. Terms such as "upper," "lower," "left," "right," "horizontal," and "vertical" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Example 1

[0032] like Figures 1-6 A new type of low-voltage control cabinet is shown, which includes a cabinet body 10 and a cabinet door 11. The cabinet door 11 is hinged on one side of the cabinet door 11 through a connecting piece. The cabinet body 10 and the cabinet door 11 form a cavity 13 for accommodating control equipment, wherein the control equipment includes circuit breakers, knife switches, intelligent controllers, control switches, etc.

[0033] Since the cabinet 10 is a confined space, it is easy for the cabinet 10 to overheat, causing malfunction or damage to control devices or switches due to high temperature. Therefore, a fan 14 is provided on the side wall of the cavity 13 so that when the temperature inside the cabinet 10 is abnormal, the fan 14 can circulate the hot air inside the cabinet 10 to the outside.

[0034] Specifically, an exhaust assembly 12 is further provided on the side of the cabinet 10. The exhaust assembly 12 and the fan 14 are located on the same side and overlap each other. Both the exhaust assembly 12 and the fan 14 can be fixed to the cabinet 10 by bolts. When bolts are used, holes are usually drilled on the back of the bottom of the exhaust assembly for installation. In particular, the exhaust assembly can also be bonded or clamped to the side of the cabinet.

[0035] The exhaust assembly 12 includes a frame 15 and a swinging member 19 movably provided on the frame 15 . The swinging member 19 can move outward to form an exhaust gap when the fan 14 is working. The exhaust gap increases as the wind force of the fan 14 increases.

[0036] The top of the frame 15 is provided with an opening to form a semi-enclosed structure, and the top of the frame 15 is provided with a plurality of step-by-step sliding grooves 17 vertically downward, that is, the depth of the sliding grooves 17 increases or decreases step by step, and the change amount of each sliding groove 17 is the same.

[0037] The swing member 19 is arranged in the slide 17. The swing member 19 includes a main blade body 21 and connecting rods 20 arranged at both ends of the blade body 21. The bottom of the slide 17 is provided with a circular groove 18 for facilitating the connection and rotation of the connecting rod 20. After the swing member 19 is inserted into the slide 17, it can rotate through the cooperation of the circular groove 18 and the connecting rod 20. In particular, one blade body corresponds to one retaining wall and slide.

[0038] Furthermore, in order to minimize the resistance of wind to the fan blades, the fan blade body 21 can be made of lightweight materials, namely foam plastics, polymer-based foam plastics, PPS plastics (polyphenylene sulfide), thermoplastic composite plastics, etc.

[0039] The frame 15 is also provided with a plurality of step-by-step retaining walls 16 for preventing the swinging member 19 from rotating in the opposite direction. The retaining walls 16 are provided between the two slide slots 17. A magnetic sheet 22 is provided on the back of the fan body 21. A magnetic block 23 is provided on the retaining wall 16 to cooperate with the magnetic sheet 22. The magnetic block 23 is embedded in the retaining wall 16. The arrangement of the magnetic block 23 and the magnetic sheet 22 increases stability while giving the fan blade a certain counterweight and resistance when opening. Therefore, it is necessary to reduce the attraction between the magnetic block 23 and the magnetic sheet 22. In this embodiment, the attraction between the magnetic sheet 22 and the magnetic block 23 is approximately half of the minimum wind force of the fan 14. That is, the attraction between the magnetic sheet 22 and the magnetic block 23 is controlled by reducing the density of the magnetic sheet 22 or the magnetic block 23, reducing its length, cross-sectional area, etc.

[0040] The bottom of the main fan blade is also provided with a dustproof part 24 for preventing dust from entering the cabinet 10. The dustproof part 24 is a combination of one or more of microfiber bristles and soft rubber sheets.

[0041] The exhaust assembly 12 in this embodiment can not only prevent dust from entering the cabinet 10 when the fan 14 stops working, but can also adapt the size of the exhaust port to itself when the fan 14 is working, which is more reliable.

[0042] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the concept and scope of the present invention. Any modifications and improvements to the technical solution of the present invention made by a person of ordinary skill in the art without departing from the design concept of the present invention shall fall within the scope of protection of the present invention. The technical content sought to be protected by the present invention is fully set forth in the claims.

Claims

1. A new type of low voltage control cabinet, characterized in that, The low-voltage control cabinet comprises: A cabinet body, with a cabinet door hinged on one side, the cabinet body and the cabinet door forming a cavity for accommodating the control device, and a fan is provided on the side wall of the cavity; An exhaust assembly is arranged on the side of the cabinet. The exhaust assembly and the fan are on the same side and their positions overlap. The exhaust assembly includes a frame and a swinging member movably arranged on the frame. The swinging member can move outward when the fan is working to form an exhaust gap. The exhaust gap increases as the wind force of the fan increases.

2. The novel low-voltage control cabinet according to claim 1 is characterized in that: The top of the frame is provided with an opening to form a semi-enclosed structure, and the top of the frame is provided with a plurality of step-by-step sliding grooves vertically downward, and the swinging member is arranged in the sliding grooves; The swinging member includes a main fan blade body and connecting rods arranged at both ends of the fan blade body. The bottom of the sliding groove is provided with a circular groove for facilitating the connection and rotation of the connecting rod.

3. The novel low-voltage control cabinet according to claim 2 is characterized in that: The frame is also provided with a plurality of stop walls arranged step by step for preventing the swing member from rotating in the reverse direction, and the stop walls are arranged between the two sliding grooves.

4. The novel low-voltage control cabinet according to claim 3 is characterized in that: A magnetic sheet is provided on the back of the fan blade body, and a magnetic block is provided on the retaining wall to cooperate with the magnetic sheet. The magnetic block is embedded in the retaining wall.

5. The novel low-voltage control cabinet according to claim 4 is characterized in that: A dustproof portion is also provided at the bottom of the main fan blades to prevent dust from entering the cabinet.

6. The novel low-voltage control cabinet according to claim 5 is characterized in that: The dustproof part is a combination of one or more of bristles made of capillary fiber material and rubber sheets made of soft material.

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