A convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker

Abstract

This utility model discloses a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker, relating to the technical field of permanent magnet high-voltage AC circuit breakers. It includes a fixed contact assembly and an adjusting mechanism. Adjusting mechanisms are horizontally mounted at both ends of the fixed contact assembly, and a movable contact component is horizontally inserted between the adjusting mechanism and the fixed contact assembly. This convenient contact replacement structure for the permanent magnet high-voltage AC circuit breaker, through the inclusion of a fixed contact assembly, adjusting mechanism, and movable contact component, makes the contact replacement process more convenient. It also ensures the auxiliary support remains stable during expansion and contraction, avoiding the risk of damage to the contact assembly due to shaking. It allows for easy assembly and disassembly, further improving the convenience of contact replacement. It has advantages such as simple structure, convenient operation, high replacement efficiency, low maintenance cost, and reliable overall performance.

Description

Technical Field

[0001] This utility model relates to the technical field of permanent magnet high-voltage AC circuit breakers, specifically a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker. Background Technology

[0002] Permanent magnet high-voltage AC circuit breakers are high-voltage vacuum circuit breakers that use permanent magnet operating mechanisms. They are mainly used for control and protection in power systems and feature high reliability, long lifespan, and maintenance-free operation.

[0003] Power systems: Used in power plants, substations and other places to cut off and connect the no-load and load current of high-voltage circuits, and to work with relay protection devices to quickly cut off fault current.

[0004] Smart grid: Some models have communication functions, which can detect line faults and automatically disconnect them, making them suitable for smart substations.

[0005] Conventional contact structures often require the entire contact assembly to be disassembled during replacement, which is cumbersome and inefficient. In addition, the contact assembly is easily damaged during disassembly, increasing maintenance costs. Utility Model Content

[0006] The purpose of this invention is to provide a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker, comprising a fixed contact assembly and an adjusting mechanism. Adjusting mechanisms are horizontally installed at both ends of the fixed contact assembly, and a movable contact component is horizontally inserted between the adjusting mechanism and the fixed contact assembly. Auxiliary supports are movably installed at the lower ends of both sides of the fixed contact assembly, and a fixing bolt is symmetrically and vertically installed in the middle of the fixed contact assembly. The fixed contact assembly includes a contact base component, a fixing seat, a combined insert block, a combined stake, and a conductor component. A fixing seat is provided in the middle of the top surface of the contact base component, and a combined insert block is symmetrically arranged on the lower end of one side of the contact base component. Conductor components are horizontally arranged on both the top left and right ends of the combined insert block.

[0008] Furthermore, the contact base component and the fixing base are integrally formed, and the conductor component is embedded in the top surface of the contact base component. One end of the conductor component is horizontally inserted into the lower end of one side of the fixing base, and the fixing bolts are vertically installed at the left and right ends of the fixing base. Two sets of fixing bolts are provided at one end of the conductor component.

[0009] Furthermore, the contact base component has a socket structure on the side surface away from the combined plug and the combined stake that matches the outer surface structure of the combined plug and the combined stake. The middle part of the combined plug and the edge of the contact base component away from the combined plug have holes for vertical bolt installation. The vertical thread of the fixing bolt passes through the fixing seat and the contact base component in sequence.

[0010] Furthermore, the adjusting component includes a clamping block, adjusting bolts, and limiting components. Two sets of adjusting bolts are horizontally threaded through the upper end of the clamping block, and two sets of limiting components are installed at the end of the adjusting bolts near the fixed seat.

[0011] Furthermore, the end of the adjusting bolt away from the clamp is horizontally mounted on the upper side of the fixed base, and the bottom of the clamp is slidably connected to the top surface of the conductor member.

[0012] Furthermore, the movable contact component includes a contact terminal, a mounting bolt component, and contact holes. One end of the contact terminal is horizontally connected to the mounting bolt component, and the surface of the contact terminal is provided with two sets of contact holes of different sizes.

[0013] Furthermore, the auxiliary support includes a dual-segment damping hinge, a first mounting base, and a second mounting base. The end of the dual-segment damping hinge closer to the fixed contact assembly is connected to the first mounting base, and the end of the dual-segment damping hinge farther from the first mounting base is connected to the second mounting base.

[0014] Furthermore, both ends of the first and second mounting bases are provided with hole structures for bolt installation, and the double-segment damping hinge, the first mounting base and the second mounting base are fixedly connected.

[0015] This utility model provides a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker, which has the following advantages:

[0016] 1. This utility model, by providing a fixed contact assembly and an adjusting structure, utilizes the cooperation of a clamping block and an adjusting bolt in the adjusting structure to achieve stable clamping and flexible adjustment of the movable contact component. The clamping block is designed with a sliding groove adapted to the top surface of the conductor component, allowing the clamping block to slide smoothly on the conductor component under the drive of the adjusting bolt, thereby achieving precise adjustment of the position of the movable contact component. At the same time, the setting of the limiting component effectively ensures the stability and safety of the contact structure. In addition, the design of the combination plug and combination stake in the fixed contact assembly not only realizes the combinability and expandability between the contact base components, but also enhances the overall strength and stability of the contact assembly. The cooperation of the combination plug and combination stake with the socket structure on the other side can realize the splicing and combination of the contact base components. This design enables the assembly and combination of multiple fixed contact components. Holes for vertical bolt installation are provided in the middle of the combined plug and on the edge of the contact base component away from the combined plug. The use of bolts ensures a more secure connection between the contact base components, preventing loosening and guaranteeing reliable operation of the contact components under high pressure. During use, operators can adjust the adjusting bolts in the adjusting mechanism to slide the clamping block on the top surface of the conductor component, allowing for flexible insertion and removal of the movable contact component between the fixed contact components. This design not only simplifies contact replacement procedures but also improves replacement efficiency and reduces maintenance costs. This modular design significantly reduces the complexity and time cost of maintenance work, improving work efficiency.

[0017] 2. This utility model, by incorporating an auxiliary support, utilizes a double-segment damping hinge connecting the first and second mounting bases to provide stable support for the entire contact assembly. The double-segment damping hinge design ensures the auxiliary support remains stable during expansion and contraction, preventing damage to the contact assembly due to shaking. It also provides the auxiliary support with buffering and shock absorption functions, effectively absorbing and dispersing the impact force on the contact assembly during circuit breaker operation, further protecting it from damage. This design not only improves the durability of the contact assembly but also extends the service life of the entire circuit breaker. Furthermore, the bolt mounting holes on the first and second mounting bases simplify the installation and disassembly of the auxiliary support, allowing operators to complete installation without complex tools or procedures, greatly improving work efficiency. The auxiliary support can also be selectively used as needed. The fixing bolts are used to secure the conductor components, ensuring structural stability. Additionally, the movable contact components enable stable contact under different current loads. To ensure the normal operation of the circuit breaker, the contact terminals are made of highly conductive materials, possessing excellent conductivity and wear resistance, guaranteeing the stability and reliability of current transmission. The threaded structure design of the mounting bolt component allows the movable contact component to be firmly installed on the mating structure, preventing loosening or detachment, further improving the stability and safety of the contact structure. The design of the contact holes ensures good contact with the conductor components in the fixed contact assembly, while also facilitating interconnection and combination with the wire structure, ensuring smooth current transmission. In addition, the design of the entire contact structure fully considers the need for easy cleaning and maintenance. Operators can easily disassemble and clean each component, thereby extending the service life of the entire circuit breaker. Therefore, by utilizing the above-mentioned structural design, the entire device structure not only has the advantages of simple structure, convenient operation, high replacement efficiency, low maintenance cost, and overall reliable performance, but also improves the durability, stability, and safety of the contact assembly, making it very suitable for the contact replacement and maintenance of high-voltage vacuum circuit breakers in power systems, smart grids, and other fields. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main body of a permanent magnet high-voltage AC circuit breaker with a convenient contact replacement structure according to the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the bracket body of a permanent magnet high-voltage AC circuit breaker with a convenient replacement fixed contact assembly according to the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the arc-shaped cover of a conveniently replaceable and adjustable component of a permanent magnet high-voltage AC circuit breaker according to the present invention.

[0021] Figure 4This is a three-dimensional structural diagram of the arc-shaped cover of a conveniently replaceable movable contact component of a permanent magnet high-voltage AC circuit breaker according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the arc-shaped cover of a convenient replacement auxiliary support for a permanent magnet high-voltage AC circuit breaker according to this utility model.

[0023] In the figure: 1. Fixed contact assembly; 101. Contact base component; 102. Fixing seat; 103. Combined plug; 104. Combined stud; 105. Conductor component; 2. Adjusting structure component; 201. Clamping block; 202. Adjusting bolt; 203. Limiting component; 3. Movable contact component; 301. Contact terminal; 302. Mounting bolt component; 303. Contact hole; 4. Auxiliary bracket; 401. Double-segment damping hinge; 402. First mounting seat; 403. Second mounting seat; 5. Fixing bolt. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] like Figures 1 to 5As shown, a convenient contact replacement structure for a permanent magnet high-voltage AC circuit breaker includes a fixed contact assembly 1 and an adjusting mechanism 2. Adjusting mechanisms 2 are horizontally installed at both ends of the fixed contact assembly 1, and a movable contact component 3 is horizontally inserted between the adjusting mechanism 2 and the fixed contact assembly 1. Auxiliary supports 4 are movably installed at the lower ends of both sides of the fixed contact assembly 1, and symmetrically vertically installed with fixing bolts 5 in the middle of the fixed contact assembly 1. The fixed contact assembly 1 includes a contact base component 101, a fixing seat 102, a combined insertion block 103, a combined insertion post 104, and a conductor component 105. The fixing seat 102 is disposed in the middle of the top surface of the contact base component 101, and the contact base... A combination plug 103 is symmetrically arranged on the lower side of one side of the base component 101. Conductor components 105 are horizontally arranged on the top left and right ends of the combination plug 103. The contact base component 101 and the fixing seat 102 are integrally formed. The conductor components 105 are embedded in the top surface of the contact base component 101, with one end of the conductor component 105 horizontally inserted into the lower side of the fixing seat 102. Fixing bolts 5 are vertically installed on the left and right ends of the fixing seat 102. Two sets of fixing bolts 5 are provided at one end of the conductor component 105. The surface of the contact base component 101 away from the combination plug 103 and the combination post 104 has... The insert structure matches the outer surface structure of the combined insert block 103 and the combined insert post 104. Holes for vertical bolt installation are provided in the middle of the combined insert block 103 and on the edge of the contact base component 101 away from the combined insert block 103. The fixing bolt 5 is vertically threaded through the fixing seat 102 and the contact base component 101. The adjusting component 2 includes a clamping block 201, adjusting bolts 202, and limiting members 203. Two sets of adjusting bolts 202 are horizontally threaded through the upper end of the clamping block 201, and two sets of limiting members 203 are installed at the end of the adjusting bolt 202 near the fixing seat 102. The end of the adjusting bolt 202 away from the clamping block 201 is horizontally installed on the fixing seat 102. The upper side and the bottom of the clamping block 201 are slidably connected to the top surface of the conductor member 105. By utilizing the cooperation between the clamping block 201 and the adjusting bolt 202 in the adjusting structure component 2, the movable contact member 3 can be stably clamped and flexibly adjusted. The clamping block 201 is designed with a sliding groove that matches the top surface of the conductor member 105, so that the clamping block 201 can slide smoothly on the conductor member 105 under the drive of the adjusting bolt 202. In use, the operator can adjust the adjusting bolt 202 in the adjusting structure component 2 to drive the clamping block 201 to slide on the top surface of the conductor member 105, thereby realizing the flexible insertion and removal of the movable contact member 3 between the fixed contact assembly 1.

[0026] like Figures 1 to 5As shown, the movable contact component 3 includes a contact terminal 301, a mounting bolt component 302, and a contact hole 303. One end of the contact terminal 301 is horizontally connected to the mounting bolt component 302, and the surface of the contact terminal 301 has two sets of contact holes 303 of different sizes. The auxiliary bracket 4 includes a double-stage damping hinge 401, a first mounting base 402, and a second mounting base 403. The end of the double-stage damping hinge 401 near the fixed contact assembly 1 is connected to the first mounting base 402, and the end of the double-stage damping hinge 401 away from the first mounting base 402 is connected to the second mounting base 403. The first mounting base 402 and the second mounting base 403... Both ends of 03 are provided with holes for bolt installation, and the double-stage damping hinge 401, the first mounting base 402 and the second mounting base 403 are fixedly connected. The double-stage damping hinge 401 connects the first mounting base 402 and the second mounting base 403, providing stable support for the entire contact assembly. The design of the double-stage damping hinge 401 ensures that the auxiliary bracket 4 remains stable when unfolding and retracting, avoiding the risk of damage to the contact assembly due to shaking. The threaded structure design of the mounting bolt member 302 ensures that the movable contact member 3 can be firmly installed on the mating structure, and is not easy to loosen or fall off.

[0027] In summary, as Figures 1 to 5 As shown, the permanent magnet high-voltage AC circuit breaker has a convenient contact replacement structure. When using it, the operator first needs to correctly install the fixed contact assembly 1 on the main structure of the circuit breaker to ensure that the fixed seat 102 is firmly connected to the main structure. Then, by horizontally turning the adjusting bolt 202 in the adjusting structure component 2, the operator can flexibly adjust the position of the clamping block 201 on the conductor component 105 to adapt to the movable contact component 3 of different sizes or positions. The clamping block 201 slides smoothly under the drive of the adjusting bolt 202, ensuring accurate clamping of the movable contact component 3.

[0028] Meanwhile, the setting of the limiting member 203 effectively ensures the stability and safety of the contact structure. After the movable contact member 3 is inserted between the fixed contact assembly 1, the operator can use the mounting bolt member 302 to firmly install it on the docking structure, ensuring good contact between the contact terminal 301 and the conductor member 105, thereby realizing smooth current transmission.

[0029] Furthermore, the expansion and contraction of the auxiliary bracket 4 can be easily achieved through the double-stage damping hinge 401, providing additional support and stability for the entire contact assembly and further protecting the contact assembly from the risk of damage. During use, operators can also selectively use the auxiliary bracket 4 as needed to meet the usage requirements of different scenarios. With the structural configuration of the first mounting base 402 and the second mounting base 403, and with the use of bolts, the fixed contact assembly 1 and the auxiliary bracket 4 can be quickly combined, while also being connected and fixed to the mounting structure surface. When it is necessary to clean or maintain the contact structure, operators can easily disassemble each component to perform necessary cleaning or replacement work, thereby extending the service life of the entire circuit breaker.

[0030] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A convenient replacement contact structure of a permanent magnet high voltage AC circuit breaker, comprising a fixed contact assembly (1) and a regulating structure (2), characterized in that: The fixed contact assembly (1) has horizontally mounted adjusting components (2) at both ends, and a movable contact component (3) is horizontally inserted between the adjusting components (2) and the fixed contact assembly (1). Auxiliary brackets (4) are movably mounted at the lower ends of the left and right sides of the fixed contact assembly (1). A fixing bolt (5) is symmetrically and vertically mounted in the middle of the fixed contact assembly (1). The fixed contact assembly (1) includes a contact base component (101), a fixing seat (102), a combination plug (103), a combination stud (104), and a conductor component (105). A fixing seat (102) is provided in the middle of the top surface of the contact base component (101), and a combination plug (103) is symmetrically provided on the lower end of one side of the contact base component (101). A conductor component (105) is horizontally provided on both the top left and right ends of the combination plug (103).

2. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 1, characterized in that, The contact base component (101) and the fixing seat (102) are integrally formed. The conductor component (105) is embedded in the top surface of the contact base component (101). One end of the conductor component (105) is horizontally inserted into the lower side of the fixing seat (102). The fixing bolts (5) are vertically installed on the left and right ends of the fixing seat (102). Two sets of fixing bolts (5) are provided at one end of the conductor component (105).

3. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 1, characterized in that, The contact base component (101) has a socket structure on the side surface away from the combined plug (103) and the combined stud (104) that matches the outer surface structure of the combined plug (103) and the combined stud (104). The middle part of the combined plug (103) and the edge of the contact base component (101) away from the combined plug (103) have holes for vertical bolt installation. The fixing bolt (5) has vertical threads that pass through the fixing seat (102) and the contact base component (101) in sequence.

4. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 1, characterized in that, The adjusting component (2) includes a clamping block (201), an adjusting bolt (202), and a limiting component (203). The upper end of the clamping block (201) is threaded with two sets of adjusting bolts (202), and the end of the adjusting bolt (202) near the fixed seat (102) is equipped with two sets of limiting components (203).

5. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 4, characterized in that, The adjusting bolt (202) is horizontally mounted on the upper side of the fixed base (102) at one end away from the clamp (201), and the bottom of the clamp (201) is slidably connected to the top surface of the conductor member (105).

6. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 1, characterized in that, The movable contact component (3) includes a contact terminal (301), a mounting bolt component (302), and a contact hole (303). One end of the contact terminal (301) is horizontally connected to the mounting bolt component (302), and the surface of the contact terminal (301) is provided with two sets of contact holes (303) of different sizes.

7. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 1, characterized in that, The auxiliary support (4) includes a double-segment damping hinge (401), a first mounting base (402) and a second mounting base (403). The first mounting base (402) is connected to one end of the double-segment damping hinge (401) near the fixed contact assembly (1), and the second mounting base (403) is connected to one end of the double-segment damping hinge (401) away from the first mounting base (402).

8. The convenient contact replacement structure of a permanent magnet high-voltage AC circuit breaker according to claim 7, characterized in that, Both ends of the first mounting base (402) and the second mounting base (403) are provided with hole structures for bolt installation, and the double-segment damping hinge (401), the first mounting base (402) and the second mounting base (403) are fixedly connected.

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