Low-voltage frame circuit breaker

Abstract

The utility model provides a low-voltage frame circuit breaker, and relates to the technical field of circuit elements, the low-voltage frame circuit breaker comprises a frame, a circuit breaker, a mounting assembly and a cooling assembly, the circuit breaker is arranged in the frame, and the mounting assembly used for conveniently mounting and dismounting the circuit breaker is arranged on the outer side of the circuit breaker. And a cooling assembly for absorbing heat and cooling is arranged above the mounting assembly. Installation and fixation can be facilitated, the installation efficiency is improved, meanwhile, automatic heat absorption and cooling can be achieved, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of circuit element technology, and more specifically, to a low-voltage frame circuit breaker. Background Technology

[0002] In power systems, low-voltage circuit breakers play a crucial role, primarily protecting circuits from abnormal conditions such as overloads and short circuits. With the continuous advancement of power technology and the expanding scale of power systems, the performance requirements for low-voltage circuit breakers are also increasing.

[0003] In existing technologies, during long-term operation, low-voltage frame circuit breakers generate a large amount of heat due to the electrothermal effect of current flow, causing the circuit breaker temperature to rise and affecting its normal operation and service life. In addition, low-voltage frame circuit breakers are mainly fixed by screws, which requires a lot of time for installation and disassembly, greatly reducing installation efficiency.

[0004] Therefore, we have made improvements to this and proposed a low-voltage frame circuit breaker. Utility Model Content

[0005] The purpose of this invention is to address the problem that current circuit breakers experience temperature increases, which affect their normal operation and service life; and the need for extensive installation and disassembly, which significantly reduces installation efficiency.

[0006] In order to achieve the above-mentioned utility model objectives and improve the above-mentioned problems, this utility model provides a low-voltage frame circuit breaker, including a frame, a circuit breaker, a mounting assembly, and a cooling assembly. The circuit breaker is installed inside the frame, and the mounting assembly for facilitating the installation and removal of the circuit breaker is installed outside the circuit breaker. A cooling assembly for absorbing heat and cooling is installed above the mounting assembly.

[0007] The mounting assembly includes a mounting post disposed on the outer side of the circuit breaker. One end of the mounting post is inserted into a telescopic connecting plate. A connecting rod is welded to the side of the telescopic connecting plate. The side of the connecting rod is fixed to a snap-fit ​​plate inside the frame. A placement plate is inserted into the bottom of the circuit breaker. A sliding block is fixedly connected to the bottom of the placement plate. A sliding groove is formed at the bottom of the frame below the sliding block.

[0008] As a preferred technical solution of this application, the sliding block slides in conjunction with the inside of the sliding groove.

[0009] As a preferred technical solution of this application, a tension ring is fixedly connected to the insertion point of the mounting column and the telescopic connecting plate.

[0010] As a preferred technical solution of this application, the snap-fit ​​slot of the snap-fit ​​plate is a C-shaped opening.

[0011] As a preferred technical solution of this application, a placement slot is provided at the rear of the frame.

[0012] As a preferred technical solution of this application, the cooling component includes a cavity plate disposed at the top of the frame, a heat-absorbing plate placed inside the cavity plate, a cooling frame fixed to the top of the frame above the heat-absorbing plate, a cooling pipe fixedly connected to the top of the cooling frame, a cooling fan connected to the top of the cooling pipe, a drive motor fixedly connected to the top of the cooling fan, a cold water column fixedly placed in the placement slot below the drive motor, and a ventilation net fixedly connected between the rear of the cold water column and the frame.

[0013] As a preferred technical solution of this application, a ventilation pipe is provided at the top of the cooling frame away from the cooling pipe.

[0014] As a preferred technical solution of this application, the cavity plate is provided with a number of through holes.

[0015] As a preferred technical solution of this application, a fixing plate is fixedly connected inside the cooling frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In the scheme of this application:

[0018] 1. By manually placing the circuit breaker on the placement plate using the telescopic connecting plate, mounting column, and placement plate, and pushing the placement plate into the frame using the sliding block, the circuit breaker drives the mounting column to insert into the telescopic connecting plate, and then the connecting rod is engaged in the slot of the snap-fit ​​plate, thus achieving fixed installation of the circuit breaker within the frame. This facilitates installation and fixation, improves installation efficiency, and solves the problem that the existing technology requires a lot of time for installation and disassembly, which greatly reduces installation efficiency.

[0019] 2. Through the installation of a cavity plate, heat absorption plate, and cooling fan, the circuit breaker generates electric heat during operation. The heat rises in the enclosed environment and enters the cavity plate through the through-hole, where it is absorbed by the heat absorption plate. Subsequently, the drive motor is manually started to drive the cooling fan to rotate, accelerating air circulation and driving the heat out through the ventilation pipe. This achieves automatic heat absorption and cooling, improves service life, and solves the problem of temperature rise in existing circuit breakers, which affects their normal operation and service life. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of a low-voltage frame circuit breaker provided in this application;

[0021] Figure 2 A partial cross-sectional structural diagram of components such as mounting columns, telescopic connecting plates, and connecting rods in a low-voltage frame circuit breaker provided in this application;

[0022] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0023] Figure 4 This is a partial cross-sectional structural diagram of the hollow plate, heat-absorbing plate, and cooling frame components in a low-voltage frame circuit breaker provided in this application.

[0024] Figure 5 This application provides a schematic diagram of the structure of the cooling water column and ventilation network in a low-voltage frame circuit breaker.

[0025] The image shows:

[0026] 1. Frame; 2. Circuit breaker; 3. Mounting assembly; 4. Cooling assembly; 301. Mounting column; 302. Telescopic connecting plate; 303. Connecting rod; 304. Snap-fit ​​plate; 305. Placement plate; 306. Sliding block; 401. Cavity plate; 402. Heat absorption plate; 403. Cooling frame; 404. Cooling pipe; 405. Cooling fan; 406. Drive motor; 407. Cold water column; 408. Ventilation net; 5. Ventilation pipe; 6. Fixing plate. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] Example

[0032] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A low-voltage frame circuit breaker includes a frame 1, a circuit breaker 2, a mounting assembly 3, and a cooling assembly 4. The circuit breaker 2 is installed inside the frame 1, and the mounting assembly 3 is installed outside the circuit breaker 2 to facilitate the installation and removal of the circuit breaker 2. The cooling assembly 4 for heat absorption and cooling is installed above the mounting assembly 3.

[0033] The mounting assembly 3 includes a mounting post 301 disposed on the outer side of the circuit breaker 2. One end of the mounting post 301 is inserted into a telescopic connecting plate 302. A connecting rod 303 is welded to the side of the telescopic connecting plate 302. The side of the connecting rod 303 is fixed to a snap-fit ​​plate 304 inside the frame 1. A placement plate 305 is inserted into the bottom of the circuit breaker 2. A sliding block 306 is fixedly connected to the bottom of the placement plate 305. A groove is formed at the bottom of the frame 1 below the sliding block 306. The circuit breaker 2 is manually placed on the placement plate 305, and then the placement plate 305 is pushed to move into the frame 1 through the sliding block 306. This causes the circuit breaker 2 to drive the mounting post 301 to insert into the telescopic connecting plate 302. The telescopic connecting plate 302 then drives the connecting rod 303 to insert into the C-shaped slot of the snap-fit ​​plate 304. Thus, the circuit breaker 2 is fixedly installed in the frame 1, which facilitates installation and improves installation efficiency.

[0034] Furthermore, such as Figure 1 , Figure 4 and Figure 5 As shown, the cooling component 4 includes a cavity plate 401 disposed at the top of the frame 1. A heat-absorbing plate 402 is placed inside the cavity plate 401. A cooling frame 403 is fixed to the top of the frame 1 above the heat-absorbing plate 402. A cooling pipe 404 is fixedly connected to the top of the cooling frame 403. A cooling fan 405 is connected to the top of the cooling pipe 404. A drive motor 406 is fixedly connected to the top of the cooling fan 405. A cold water column 407 is fixedly placed in a placement slot below the drive motor 406. A ventilation net 408 is fixedly connected between the rear of the cold water column 407 and the frame 1. When the circuit breaker 2 is in use, it will generate heat over time. Since the circuit breaker 2 is in a... When used in a closed environment, the heat generated inside the device flows upward through the air and enters the cavity plate 401 through the through-hole. The heat-absorbing plate 402 inside the cavity plate 401 absorbs the heat. Then, the drive motor 406 is manually started, which drives the cooling fan 405 to rotate and blow air. The airflow accelerates the air circulation, causing the heat absorbed by the heat-absorbing plate 402 to be discharged from the ventilation pipe 5. At the same time, the remaining heat generated in the circuit breaker 2 is absorbed by the cold water column 407 placed in the slot behind the frame 1. The heat absorbed by the cold water column 407 is reduced by the ventilation network, and the temperature of the cold water in the cold water column 407 is restored. It can automatically absorb heat and cool down, thus improving its service life.

[0035] The usage process of the low-voltage frame circuit breaker 2 provided by this utility model is as follows:

[0036] Manually place the circuit breaker 2 on the placement plate 305, then push the placement plate 305 to move into the frame 1 via the sliding block 306, so that the circuit breaker 2 drives the mounting column 301 to insert into the telescopic connecting plate 302. The telescopic connecting plate 302 drives the connecting rod 303 to insert into the C-shaped slot of the snap-fit ​​plate 304, thus fixing the circuit breaker 2 in the frame 1. When the circuit breaker 2 is in use, it will generate heat over time. Since the circuit breaker 2 is used in a closed environment, the heat generated inside will flow upward through the air, and then the heat will enter the cavity plate 401 through the through hole, so that the heat-absorbing plate 402 in the cavity plate 401 will absorb the heat. Then manually start the drive motor 406, so that the drive motor 406 drives the cooling fan 405 to rotate and blow air, so that the airflow will accelerate the air circulation and drive the heat absorbed by the heat-absorbing plate 402 to be discharged from the ventilation pipe 5.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A low-voltage frame circuit breaker, characterized in that, The device includes a frame (1), a circuit breaker (2), an installation component (3), and a cooling component (4). The frame (1) contains the circuit breaker (2), and the outside of the circuit breaker (2) is provided with an installation component (3) for easy installation and disassembly of the circuit breaker (2). The installation component (3) is provided with a cooling component (4) for heat absorption and cooling. The mounting assembly (3) includes a mounting post (301) disposed on the outer side of the circuit breaker (2). One end of the mounting post (301) is inserted into a telescopic connecting plate (302). A connecting rod (303) is welded to the side of the telescopic connecting plate (302). The side of the connecting rod (303) is fixed to a snap-fit ​​plate (304) inside the frame (1). A placement plate (305) is inserted into the bottom of the circuit breaker (2). A sliding block (306) is fixedly connected to the bottom of the placement plate (305). A sliding groove is opened at the bottom of the frame (1) below the sliding block (306).

2. A low-voltage frame circuit breaker according to claim 1, characterized in that, The sliding block (306) slides in conjunction with the inside of the groove.

3. A low-voltage frame circuit breaker according to claim 2, characterized in that, A tension ring is fixedly connected at the insertion point of the mounting column (301) and the telescopic connecting plate (302).

4. A low-voltage frame circuit breaker according to claim 3, characterized in that, The snap-fit ​​slot of the snap-fit ​​plate (304) is a C-shaped opening.

5. A low-voltage frame circuit breaker according to claim 4, characterized in that, A placement slot is provided at the rear of the frame (1).

6. A low-voltage frame circuit breaker according to claim 5, characterized in that, The cooling component (4) includes a cavity plate (401) set at the top of the frame (1), a heat absorption plate (402) is placed inside the cavity plate (401), a cooling frame (403) is fixed above the heat absorption plate (402) and fixed at the top of the frame (1), a cooling pipe (404) is fixedly connected to the top of the cooling frame (403), a cooling fan (405) is connected to the top of the cooling pipe (404), a drive motor (406) is fixedly connected to the top of the cooling fan (405), a cold water column (407) is fixedly placed in the placement slot below the drive motor (406), and a ventilation net (408) is fixedly connected between the rear of the cold water column (407) and the frame (1).

7. A low-voltage frame circuit breaker according to claim 6, characterized in that, A ventilation pipe (5) is provided at the top of the cooling frame (403) away from the cooling pipe (404).

8. A low-voltage frame circuit breaker according to claim 7, characterized in that, The cavity plate (401) has several through holes.

9. A low-voltage frame circuit breaker according to claim 8, characterized in that, A fixing plate (6) is fixedly connected inside the cooling frame (403).

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