Environment-friendly ring main unit lower isolation circuit breaker switch module

Abstract

The utility model discloses an environment-friendly ring main unit lower isolation circuit breaker switch module, particularly relates to the field of circuit breaker switches, and comprises a circuit breaker frame, a lower contact seat is fixedly arranged on the circuit breaker frame, a static contact is arranged on the lower contact seat, a driving mechanism is further arranged on the circuit breaker frame, and the driving mechanism comprises a transmission seat. A transmission mechanism is arranged on the circuit breaker frame, the transmission mechanism comprises a moving contact, the transmission seat drives the moving contact to be in contact with the static contact through rotation to complete switching-on, and the transmission seat drives the moving contact to be separated from the static contact through rotation to complete switching-off. According to the utility model, through reasonable design of a switching-on and switching-off mode, mechanical control of movement of the moving contact and perfect design of an isolation main shaft and a grounding switching-on mechanism, the safety of workers during maintenance or overhaul can be ensured, measures can be taken in time when a fault occurs, and the accident risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker switches, and more specifically, to an environmentally friendly ring network cabinet bottom isolation circuit breaker switch module. Background Art

[0002] Environmentally friendly ring main units (RMUs) are power distribution equipment used in medium-voltage power systems. They play a vital role in distributing electrical energy, protecting circuits, and enabling various power system operations within urban distribution networks. They offer advantages such as compact structure, easy installation, and reliable operation. With increasing demands for environmental protection, traditional RMUs are increasingly being developed towards environmentally friendly designs, with greater emphasis placed on environmental friendliness in material selection, manufacturing processes, operation and maintenance, and waste disposal.

[0003] The existing isolation circuit breaker switch, isolation shaft and grounding closing mechanism under the ring main cabinet are not well designed and cannot ensure the safety of workers during maintenance or overhaul. As a result, timely measures cannot be taken when a fault occurs, increasing the risk of accidents. Utility Model Content

[0004] The utility model provides an environmentally friendly ring network cabinet under-isolating circuit breaker switch module, which aims to solve the problem that the existing ring network cabinet under-isolating circuit breaker switch, the isolation main shaft and the grounding closing mechanism are not well designed, which cannot ensure the safety of workers during maintenance or repair, resulting in the inability to take timely measures when a fault occurs, increasing the risk of accidents.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an environmentally friendly ring network cabinet lower isolation circuit breaker switch module, comprising a circuit breaker frame, a lower contact seat fixedly provided on the circuit breaker frame, a static contact provided on the lower contact seat, a drive mechanism further provided on the circuit breaker frame, the drive mechanism including a transmission seat, a transmission mechanism provided on the circuit breaker frame, the transmission mechanism including a moving contact, the transmission seat completes closing by rotating and driving the moving contact to contact the static contact, and completes opening by rotating and driving the moving contact to separate from the static contact.

[0006] In a preferred embodiment, the driving mechanism further comprises a main shaft, on which an umbrella skirt is fixedly provided, and a transmission seat is fixedly provided on the main shaft, and the main shaft drives the transmission seat to perform circular motion along the horizontal axis of the main shaft.

[0007] In a preferred embodiment, a vacuum interrupter is slidably provided on the circuit breaker frame, a soft connection is fixedly provided on the circuit breaker frame, the top of the vacuum interrupter is in contact with the soft connection, and an elastic member is provided between the soft connection and the transmission seat.

[0008] In a preferred embodiment, the transmission mechanism includes an isolation seat, which is fixedly arranged on the circuit breaker frame, and the moving contact is slidably arranged in the isolation seat. A connecting contact is fixedly arranged on the top of the moving contact, and the connecting contact is fixedly arranged on the bottom of the vacuum interrupter.

[0009] In a preferred embodiment, an arc-shaped hole is opened on the transmission seat, an auxiliary rod is fixedly provided on the top of the vacuum interrupter, a connecting shaft is rotatably provided on the auxiliary rod, the connecting shaft is movably provided in the arc-shaped hole, and the soft connection is located on the auxiliary rod.

[0010] The beneficial effects of the present invention are:

[0011] 1. The utility model reasonably designs the closing and opening modes, mechanically controls the movement of the moving contacts, isolates the main shaft, and improves the grounding closing mechanism design, which can ensure the safety of workers during maintenance or overhaul, and can take timely measures to reduce the risk of accidents when a fault occurs.

[0012] 2. Through the rational design of the driving mechanism, the utility model not only improves the performance and service life of the equipment itself, but also enhances the safety and reliability of the power system. The application of the vacuum interrupter enables the circuit breaker to quickly and safely cut off the current under extreme conditions. The design of the driving mechanism and the main shaft ensures the accuracy and response speed of the operation. The structural design of the soft connection and the circuit breaker frame also plays an important role in improving the stability and durability of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model.

[0015] Figure 3 It is a structural diagram of the main view of the utility model.

[0016] Figure 4 It is a schematic structural diagram of the utility model from a top view.

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the vacuum interrupter of the utility model.

[0018] The accompanying drawings are marked as follows: 1. Circuit breaker frame; 11. Lower contact seat; 12. Static contact; 2. Driving mechanism; 21. Main shaft; 22. Umbrella skirt; 23. Transmission seat; 3. Transmission mechanism; 31. Isolation seat; 32. Moving contact; 33. Connecting contact; 4. Vacuum interrupter; 5. Soft connection. DETAILED DESCRIPTION

[0019] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Refer to the instruction manual Figures 1 to 5 An environmentally friendly ring network cabinet lower isolation circuit breaker switch module includes a circuit breaker frame 1, a lower contact seat 11 is fixedly provided on the circuit breaker frame 1, and a static contact 12 is provided on the lower contact seat 11. The circuit breaker frame 1 is also provided with a driving mechanism 2, and the driving mechanism 2 includes a transmission seat 23. The circuit breaker frame 1 is provided with a transmission mechanism 3, and the transmission mechanism 3 includes a moving contact 32. The transmission seat 23 completes closing by rotating and driving the moving contact 32 to contact with the static contact 12, and completes opening by rotating and driving the moving contact 32 to separate from the static contact 12.

[0021] A vacuum interrupter 4 is slidably provided on the circuit breaker frame 1 , a flexible connection 5 is fixedly provided on the circuit breaker frame 1 , the top of the vacuum interrupter 4 contacts the flexible connection 5 , and an elastic member is provided between the flexible connection 5 and the transmission seat 23 .

[0022] It should be noted that the circuit breaker frame 1 provides support and protection for the entire circuit breaker, ensuring that each component can be stably installed and work normally; the lower contact seat 11 provides fixation and support for the static contact 12, ensuring the stability of the position of the static contact 12, and also provides an accurate docking target for the moving contact 32; the moving contact 32 and the static contact 12 are the parts of the circuit breaker that most directly perform the breaking task. The moving contact 32 moves to contact or separate from the static contact 12, thereby realizing the connection or disconnection of the circuit; the vacuum arc extinguishing chamber 4 is used to quickly extinguish the arc generated when the moving contact 32 is separated from the static contact 12, ensuring the safety and reliability of the disconnection process, and the arc in a vacuum environment is more easily extinguished.

[0023] It should also be noted that the elastic member is configured as a spring, which is disposed between the transmission seat 23 and the flexible connector 5. The material selection for the flexible connector 5 is determined based on the specific application environment, temperature range, corrosion resistance, conductivity, and other requirements. Different materials are suitable for different application scenarios to ensure that the flexible connector 5 can achieve optimal performance during use. The materials used include but are not limited to rubber and copper flexible connectors.

[0024] The specific implementation scenario is as follows: when the circuit needs to be connected, the transmission base 23 is driven to rotate externally, so that the moving contact 32 moves toward the static contact 12 until the two contact, forming a conductive path, and the circuit is connected; when a fault is detected or the circuit needs to be disconnected, the transmission base 23 reverses and separates the moving contact 32 from the static contact 12. During this process, an arc will be generated between the two contacts, but the arc will be quickly guided into the vacuum interrupter 4 and quickly extinguished in the vacuum, ensuring the safety and reliability of the disconnection process; in the disconnected state, the transmission base 23 ensures sufficient electrical isolation at both ends of the circuit breaker, providing an obvious and safe disconnection point, which is convenient for subsequent inspection and maintenance work.

[0025] Refer to the instruction manual Figures 1 to 5 In order to facilitate the stable rotation of the driving seat 23, specifically, the driving mechanism 2 also includes a main shaft 21, an umbrella skirt 22 is fixedly provided on the main shaft 21, and the transmission seat 23 is fixedly provided on the main shaft 21. The main shaft 21 drives the transmission seat 23 to perform circular motion along the horizontal axis of the main shaft 21.

[0026] It should be noted that the main shaft 21, as a core component, is responsible for transmitting power to the transmission seat 23 to adjust the moving contact 32, ensuring that the moving contact 32 can move accurately. The umbrella skirt 22 is used to increase the creepage distance, improve the insulation performance, and prevent flashover caused by high voltage.

[0027] It should also be noted that when the main shaft 21 rotates, it drives the transmission base 23 to rotate, further controlling the circuit breaking and the passage.

[0028] Refer to the instruction manual Figures 1 to 5 The transmission mechanism 3 includes an isolation seat 31, which is fixed on the circuit breaker frame 1. The moving contact 32 is slidably set in the isolation seat 31. A connecting contact 33 is fixed on the top of the moving contact 32, and the connecting contact 33 is fixed to the bottom of the vacuum interrupter 4.

[0029] It should be noted that when the circuit breaker is in the disconnected state, the isolation seat 31 ensures a sufficiently large electrical gap between the two ends of the circuit breaker, providing a clearly visible disconnection point, which is crucial for safety during inspection and maintenance.

[0030] Refer to the instruction manual Figure 5 Specifically, an arc-shaped hole is opened on the transmission seat 23, an auxiliary rod is fixedly provided on the top of the vacuum interrupter 4, a connecting shaft is rotatably provided on the auxiliary rod, the connecting shaft is movably provided in the arc-shaped hole, and the soft connection 5 is located on the auxiliary rod.

[0031] It should be noted that the combination of the arc-shaped hole, the auxiliary rod and the connecting shaft not only improves the mechanical flexibility and stability of the circuit breaker, but also reduces wear, improves operating accuracy and safety, and simplifies the assembly and maintenance process.

[0032] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. An environmentally friendly ring main unit lower isolation circuit breaker switch module, characterized in that: The invention comprises a circuit breaker frame (1), wherein a lower contact seat (11) is fixedly provided on the circuit breaker frame (1), a static contact (12) is provided on the lower contact seat (11), a driving mechanism (2) is further provided on the circuit breaker frame (1), the driving mechanism (2) includes a transmission seat (23), a transmission mechanism (3) is provided on the circuit breaker frame (1), the transmission mechanism (3) includes a moving contact (32), the transmission seat (23) completes closing by rotating and driving the moving contact (32) to contact the static contact (12), and completes opening by rotating and driving the moving contact (32) to separate from the static contact (12).

2. The environmentally friendly ring main unit bottom isolation circuit breaker switch module according to claim 1 is characterized in that: The driving mechanism (2) further comprises a main shaft (21), an umbrella skirt (22) is fixedly arranged on the main shaft (21), and the transmission seat (23) is fixedly arranged on the main shaft (21), and the main shaft (21) drives the transmission seat (23) to perform circular motion along the horizontal axis of the main shaft (21).

3. The environmentally friendly ring main unit bottom isolation circuit breaker switch module according to claim 2, characterized in that: A vacuum interrupter (4) is slidably provided on the circuit breaker frame (1), a soft connection (5) is fixedly provided on the circuit breaker frame (1), the top of the vacuum interrupter (4) is in contact with the soft connection (5), and an elastic member is provided between the soft connection (5) and the transmission seat (23).

4. The environmentally friendly ring main unit bottom isolation circuit breaker switch module according to claim 3 is characterized by: The transmission mechanism (3) comprises an isolation seat (31), the isolation seat (31) is fixedly arranged on the circuit breaker frame (1), the moving contact (32) is slidably arranged in the isolation seat (31), a connecting contact (33) is fixedly arranged at the top end of the moving contact (32), and the connecting contact (33) is fixedly arranged at the bottom of the vacuum interrupter (4).

5. The environmentally friendly ring main unit bottom isolation circuit breaker switch module according to claim 4, characterized in that: An arc-shaped hole is provided on the transmission seat (23); an auxiliary rod is fixedly provided on the top of the vacuum interrupter (4); a connecting shaft is rotatably provided on the auxiliary rod; the connecting shaft is movably provided in the arc-shaped hole; and the soft connection (5) is located on the auxiliary rod.

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