Intelligent vacuum circuit breaker

By designing the first and second wire mechanisms in the vacuum circuit breaker, the coordination of the limit port and the roller body is used to solve the problems of wire winding and wear during the wiring process, and the effective tightening of the wire and the improvement of the wiring effect is achieved.

CN119764106AActive Publication Date: 2025-04-04SHENZHEN MEIHUA POWER ENG DESIGN CO LTD
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Patent Information

Application Number
CN202411974955.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2025-04-04
Estimated Expiration
2044-12-31

AI Technical Summary

Technical Problem

During the wiring process of the vacuum circuit breaker, multiple wires are wound together, causing wear between adjacent wires, which affects the working effect of the vacuum circuit breaker.

Method used

An intelligent vacuum circuit breaker is designed, using a first wire bundle mechanism and a second wire bundle mechanism. Through the coordination of the limit port, the first wire bundle roller and the second wire bundle roller, the tightening treatment of the wire is realized to prevent the wire from being wound and wear.

Benefits of technology

By tightening the wire, the wiring effect is improved, the wire is worn and dragged, and the normal operation of the vacuum circuit breaker is ensured.

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Abstract

The invention belongs to the technical field of electrical elements, and particularly relates to an intelligent vacuum circuit breaker which comprises a shell, the bottom of the shell is connected with a supporting trolley through a bolt, one side of the shell is provided with a vacuum arc-extinguishing chamber, one side of the vacuum arc-extinguishing chamber is connected with a control panel through a bolt, and the control panel is connected with the supporting trolley through a bolt. A control panel is arranged in the shell, two control buttons are arranged on one side of the control panel, a switching-on and switching-off indicator lamp and an energy storage indicator lamp are arranged on one side of the control panel, a control system is arranged on one side of the inner wall of the vacuum arc-extinguishing chamber, a support is connected to one side of the shell through bolts, and a plurality of pole columns are connected to the top of the support through bolts. And contact arms are welded at two ends of one side of the pole. According to the invention, wires can be effectively tensioned, so that the wiring effect of the wires is improved, and the situation that wear is generated between adjacent wires due to the fact that a plurality of wires are wound together in the wiring process, so that the work of the vacuum circuit breaker is influenced is prevented.
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Description

Technical Field

[0001] The present invention relates to the field of electrical components, and in particular to an intelligent vacuum circuit breaker. Background Art

[0002] A vacuum circuit breaker is a mechanical device that uses an operating mechanism to drive an arc extinguishing chamber to achieve circuit opening and closing control. It is widely used in electricity consumption and distribution. A vacuum circuit breaker is mainly composed of a vacuum arc extinguishing chamber and an opening and closing operating mechanism, and has the advantage of fast opening and closing speed.

[0003] After searching, a Chinese patent application with application publication number CN208422770U discloses a new type of vacuum circuit breaker, including a utility pole and a vacuum circuit breaker body, wherein a fixed base is connected to the utility pole through a first clamp, a lateral support frame is connected to the outer side of the fixed base, and the bottom end of the lateral support frame is connected to the utility pole through a second clamp, and the vacuum circuit breaker body is fixed to the top of the fixed base, and a fixed frame is connected to the outer side of the top of the vacuum circuit breaker body. In this application, an insulating wire fixing disk is provided on the fixed frame of the vacuum circuit breaker, and the wire fixing frame on the insulating wire fixing disk can fix the wire to prevent the wire from being loaded with weight due to snow accumulation in winter, which may cause the connection between the wire and the vacuum circuit breaker to loosen, thereby reducing the probability of failure of the vacuum circuit breaker wiring. At the same time, the insulating wire fixing disk can be rotated and adjusted, making it more convenient to connect wires.

[0004] During the operation of the vacuum circuit breaker, the components inside the vacuum circuit breaker are usually wired to improve the working effect of the vacuum circuit breaker. However, during the wiring process, due to the entanglement of multiple wires, wear occurs between adjacent wires, which affects the operation of the vacuum circuit breaker. Summary of the invention

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An intelligent vacuum circuit breaker comprises a shell, the bottom of which is connected to a supporting trolley by bolts, a vacuum arc chamber is opened on one side of the shell, a control panel is connected to one side of the vacuum arc chamber by bolts, and two control buttons are arranged on one side of the control panel, a closing and opening indicator light and an energy storage indicator light are arranged on one side of the control panel respectively, a control system is arranged on one side of the inner wall of the vacuum arc chamber, a support is connected to one side of the shell by bolts, and a plurality of poles are connected to the top of the support by bolts, contact arms are welded at both ends of one side of the pole, and contacts are arranged on one side of the contact arms, a terminal block is connected to one side of the inner wall of the vacuum arc chamber near the bottom by bolts, a first wire harness mechanism is arranged on one side of the vacuum arc chamber, and the first wire harness mechanism is located above the terminal block.

[0007] Preferably, the four control buttons are named opening button and closing button from left to right, and the opening button and closing button are electrically connected to the control system respectively.

[0008] Preferably, a bracket is connected between the outer walls on both sides and the top of the shell by bolts, and a storage rack is connected to one side of the bracket by bolts, and the bottom of the storage rack is connected to the top of the shell by bolts.

[0009] Preferably, one side of the top of the shell is connected with an aviation socket via bolts, and one end of the aviation socket is stored inside the storage rack.

[0010] Preferably, the first wire-bearing mechanism includes a constraint frame, two rotating shafts, two limiting rollers, a first wire-bearing roller and a second wire-bearing roller, and one side of the constraint frame is connected to one side of the vacuum arc extinguishing chamber by bolts, and a plurality of limiting openings are arranged on the top of the constraint frame, and the two ends of the two rotating shafts are respectively rotatably connected with the two sides opposite to the limiting openings by bearings, and the two limiting rollers are fixedly sleeved on the outer wall of the rotating shaft, and the two ends of one side of the limiting opening are respectively connected to the first fixing frame and the second fixing frame by bolts, and the first fixing frame is located above the second fixing frame, and the opposite sides of the first fixing frame are rotatably connected with the first wire-bearing roller by bearings, and the two ends of the second wire-bearing roller are rotatably connected with the second fixed frame by bearings, and the first wire-bearing roller and the second wire-bearing roller are distributed in a straight line.

[0011] Preferably, the outer walls of the two limiting rollers are provided with a plurality of anti-slip grooves, and the two limiting rollers are made of elastic material.

[0012] Preferably, a second wire harness mechanism is provided at a position near the bottom inside the limiting opening, and the second wire harness mechanism is located below the first wire harness mechanism, and the first wire harness mechanism and the second wire harness mechanism are matched with each other.

[0013] Preferably, the second wiring harness mechanism consists of two turntables, two push rods, two push plates, two airbags, two support plates and a wiring harness assembly, and one side of the support plate is connected to the limit opening by bolts, the airbag is located between the bottom of the push plate and the top of the support plate, the push plate is slidably connected to the limit opening, one of the turntables is welded to one end of the first wiring harness roller, and the other turntable is welded to one end of the second wiring harness roller, a pin is welded to one side of the two turntables near the top, a shaft sleeve is rotatably sleeved on the outer wall of the pin, and both ends of the push rod are respectively connected to the bottom of the shaft sleeve and the top of the push plate by hinges.

[0014] Preferably, the cable harness assembly consists of a cable harness seat and two extrusion pads, and the two ends of the cable harness seat are fixedly connected to the inner wall of the limiting opening. A cable harness opening is opened through the top of the cable harness seat, and the opposite sides of the cable harness opening are bonded to the two extrusion pads. The extrusion pads are made of hollow elastic material, and a catheter is arranged between the extrusion pad and the airbag.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention provides a first wire bundling mechanism. When the vacuum circuit breaker is working, the closing button and the opening button are used to close and open the vacuum circuit breaker. During this period, when wiring the components inside the vacuum circuit breaker, one end of the wire will connect the components inside the vacuum circuit breaker, and the other end of the wire will be connected to the terminal board through the first wire bundling mechanism. The other end of the wire will be installed on the terminal board through two limiting rollers, the first wire bundling roller and the second wire bundling roller in sequence. Since the first wire bundling roller and the second wire bundling roller are arranged in a straight line, the wire will be distributed in an S shape under the action of the first wire bundling roller and the second wire bundling roller. The cooperation between the first wire-bundling roller and the second wire-bundling roller can effectively tighten the wire, and the setting of multiple limit openings can independently set the wire. Therefore, the cooperation between the limit opening, the first wire-bundling roller and the second wire-bundling roller can effectively tighten the wire, thereby improving the wiring effect of the wire and preventing abrasion between adjacent wires due to entanglement of multiple wires during wiring, thereby affecting the operation of the vacuum circuit breaker. At the same time, by tightening the wire, it is possible to prevent the wire from being dragged due to the gravity of the wire, thereby preventing the wire from falling off during wiring, thereby affecting the operation of the vacuum circuit breaker.

[0017] 2. The present invention provides a first wire harness mechanism and a second wire harness mechanism. When the first wire harness mechanism is used to tighten and constrain the wire, the first wire harness roller and the second wire harness roller will rotate under the action of the wire tension. At this time, the two turntables will rotate along with the rotation of the first wire harness roller and the second wire harness roller, and the pin shaft will rotate in a circle with the center of the turntable as the center of the circle. At this time, the push rod will drive the push plate to swing back and forth up and down under the action of the pin shaft and the shaft sleeve. At this time, the push plate will squeeze the airbag when it swings back and forth, and the gas inside the airbag will be squeezed. After being squeezed, it will be transported to the inside of the squeeze pad through the conduit. The air pressure inside the squeeze pad will increase with the input of gas. At this time, the squeeze pad will bulge under the action of the air pressure, and the bulged squeeze pad will act on the wire. Since the squeeze pad is made of flexible material, the squeeze pad can protect the wire while squeezing it. Therefore, the wire can be effectively tightened by the squeeze pad to facilitate the restraint of the wire, thereby improving the wiring effect of the wire and preventing the wire from falling off during connection, thereby affecting the operation of the vacuum circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of an intelligent vacuum circuit breaker proposed by the present invention;

[0019] Figure 2 A rear view structural schematic diagram of an intelligent vacuum circuit breaker proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the main structure of an intelligent vacuum circuit breaker proposed by the present invention;

[0021] Figure 4 A cross-sectional structural schematic diagram of an intelligent vacuum circuit breaker proposed by the present invention;

[0022] Figure 5 A schematic diagram of the structure of a wire harness mechanism of an intelligent vacuum circuit breaker proposed by the present invention;

[0023] Figure 6 A schematic cross-sectional structure diagram of a first wire harnessing mechanism of an intelligent vacuum circuit breaker proposed by the present invention;

[0024] Figure 7 A schematic diagram of the partial structure of an intelligent vacuum circuit breaker proposed by the present invention;

[0025] Figure 8 This is a schematic structural diagram of a second wire harness mechanism of an intelligent vacuum circuit breaker proposed in the present invention.

[0026] In the attached drawings: 1. Shell; 2. Bracket; 3. Support; 4. Pole; 5. Contact arm; 6. Contact; 7. Aviation socket; 8. Control panel; 9. Control button; 10. Storage rack; 11. Vacuum arc extinguishing chamber; 12. Terminal block; 13. Constraint frame; 14. Limit opening; 15. First wire harness mechanism; 16. Second wire harness mechanism; 17. Rotating shaft; 18. Limiting roller; 19. Anti-skid groove; 20. First fixed frame; 21. First wire harness roller; 22. Second fixed frame; 23. Second wire harness roller; 24. Wiring assembly; 25. Turntable; 26. Pin; 27. Bushing; 28. Push rod; 29. ​​Push plate; 30. Airbag; 31. Support plate; 32. Wiring seat; 33. Wiring opening; 34. Extrusion pad; 35. Conduit. DETAILED DESCRIPTION

[0027] Example 1, reference Figure 1-Figure 7An intelligent vacuum circuit breaker comprises a shell 1, the bottom of the shell 1 is connected to a supporting trolley by bolts, a vacuum interrupter 11 is provided on one side of the shell 1, a control panel 8 is connected to one side of the vacuum interrupter 11 by bolts, and two control buttons 9 are arranged on one side of the control panel 8, a closing and opening indicator light and an energy storage indicator light are arranged on one side of the control panel 8, a control system is arranged on one side of the inner wall of the vacuum interrupter 11, a support 3 is connected to one side of the shell 1 by bolts, and a plurality of poles 4 are connected to the top of the support 3 by bolts, contact arms 5 are welded at both ends of one side of the pole 4, and a contact 6 is arranged on one side of the contact arm 5, and the vacuum interrupter 11 is provided with a plurality of poles 4, and a plurality of poles 4 are connected to the top of the support 3 by bolts ... A terminal block 12 is connected to one side of the inner wall of the arc chamber 11 near the bottom by bolts. A first wire bundling mechanism 15 is provided on one side of the vacuum arc chamber 11, and the first wire bundling mechanism 15 is located above the terminal block 12, which can effectively tighten the wires, thereby improving the wiring effect of the wires and preventing wear between adjacent wires due to the entanglement of multiple wires during the wiring process, thereby affecting the operation of the vacuum circuit breaker. At the same time, by tightening the wires, it is possible to prevent the wires from being dragged due to the gravity of the wires, thereby preventing the wires from falling off during wiring, thereby affecting the operation of the vacuum circuit breaker.

[0028] On the basis of the above, the names of the four control buttons 9 from left to right are opening button and closing button, and the opening button and closing button are electrically connected to the control system respectively.

[0029] On the basis of the above, a bracket 2 is connected between the outer walls and the top of the shell 1 by bolts, and a storage rack 10 is connected to one side of the bracket 2 by bolts, and the bottom of the storage rack 10 is connected to the top of the shell 1 by bolts.

[0030] On the basis of the above, one side of the top of the housing 1 is connected with an aviation socket 7 by bolts, and one end of the aviation socket 7 is stored inside the storage rack 10 .

[0031] On the basis of the above, the first wire-bearing mechanism 15 includes a constraint frame 13, two rotating shafts 17, two limiting rollers 18, a first wire-bearing roller 21 and a second wire-bearing roller 23, and one side of the constraint frame 13 is connected to one side of the vacuum arc extinguishing chamber 11 by bolts, and a plurality of limiting openings 14 are arranged on the top of the constraint frame 13. The two ends of the two rotating shafts 17 are respectively connected to the two sides opposite to the limiting openings 14 by bearings to form a rotational connection. The two limiting rollers 18 are fixedly sleeved on the outer wall of the rotating shaft 17. The two ends of one side of the limiting opening 14 are respectively connected to the first fixing frame 20 and the second fixing frame 22 by bolts. The first fixing frame 20 is located above the second fixing frame 22, and the first fixing frame 20 is located above the second fixing frame 22. The first fixing frame 20 is located above the second fixing frame 22. A rotational connection is formed by bearings, and two ends of the second wire bundling roller 23 are rotationally connected to the second fixed frame 22 by bearings. The first wire bundling roller 21 and the second wire bundling roller 23 are distributed in a straight line. The cooperation between the limit opening 14, the first wire bundling roller 21 and the second wire bundling roller 23 can effectively tighten the wires, thereby improving the wiring effect of the wires and preventing wear between adjacent wires due to the entanglement of multiple wires during the wiring process, thereby affecting the operation of the vacuum circuit breaker. At the same time, by tightening the wires, it is possible to prevent the wires from being dragged due to the gravity of the wires, thereby preventing the wires from falling off during wiring, thereby affecting the operation of the vacuum circuit breaker.

[0032] On the basis of the above, the outer walls of the two limiting rollers 18 are provided with a plurality of anti-slip grooves 19 , and the two limiting rollers 18 are both made of elastic material.

[0033] Example 2, reference Figure 1-Figure 8 , an intelligent vacuum circuit breaker, compared with Example 1, on the basis of Example 1, a second wire harness mechanism 16 is arranged near the bottom of the inner part of the limit opening 14, and the second wire harness mechanism 16 is located below the first wire harness mechanism 15, and the first wire harness mechanism 15 and the second wire harness mechanism 16 are matched with each other.

[0034] On the basis of the above, the second wiring harness mechanism 16 is composed of two turntables 25, two push rods 28, two push plates 29, two air bags 30, two support plates 31 and a wiring harness assembly 24, and one side of the support plate 31 is connected to the limit opening 14 by bolts, the air bag 30 is located between the bottom of the push plate 29 and the top of the support plate 31, and the push plate 29 is slidably connected to the limit opening 14. One of the turntables 25 is welded to one end of the first wiring harness roller 21, and the other turntable 25 is welded to one end of the second wiring harness roller 23. A pin 26 is welded to one side of the two turntables 25 near the top, and a shaft sleeve 27 is rotatably sleeved on the outer wall of the pin 26. The two ends of the push rod 28 are respectively connected to the bottom of the shaft sleeve 27 and the top of the push plate 29 The two ends of the wire harness seat 32 are fixedly connected to the inner wall of the limit opening 14, and a wire harness opening 33 is provided on the top of the wire harness seat 32. The two opposite sides of the wire harness opening 33 are bonded to the two squeeze pads 34. The squeeze pads 34 are made of hollow elastic material. A conduit 35 is provided between the squeeze pads 34 and the airbag 30. The squeeze pads 34 can protect the wires while squeezing the wires, so that the squeeze pads 34 can effectively tighten the wires to facilitate the restraint of the wires, thereby improving the wiring effect of the wires and preventing the wires from falling off during connection, thereby affecting the operation of the vacuum circuit breaker.

[0035] In summary, with the aid of the above technical solution of the present invention: when the vacuum circuit breaker is working, the vacuum circuit breaker is closed and opened by means of the closing button and the opening button. During this period, when wiring the components inside the vacuum circuit breaker, one end of the wire will connect the components inside the vacuum circuit breaker, and the other end of the wire will be connected to the terminal board 12 through the first wire bundling mechanism 15. The other end of the wire will be installed on the terminal board 12 through two limiting rollers 18, the first wire bundling roller 21 and the second wire bundling roller 23 in sequence. Since the first wire bundling roller 21 and the second wire bundling roller 23 are distributed in a straight line, the wire will be on the first wire bundling roller. The first wire roller 21 and the second wire roller 23 are S-shaped under the action of the first wire roller 21 and the second wire roller 23. Therefore, the cooperation between the first wire roller 21 and the second wire roller 23 can effectively tighten the wire, and the setting of multiple limit openings 14 can independently set the wire. Therefore, the cooperation between the limit openings 14, the first wire roller 21 and the second wire roller 23 can effectively tighten the wire, thereby improving the wiring effect of the wire, preventing the adjacent wires from being worn due to the entanglement of multiple wires during the wiring process, thereby affecting the operation of the vacuum circuit breaker. At the same time, by tightening the wire, it can be prevented that the gravity of the wire leads to The wire is dragged, and thus the wire falls off during wiring, which in turn affects the operation of the vacuum circuit breaker. When the wire is tightened and constrained by the first wire harness mechanism 15, the first wire harness roller 21 and the second wire harness roller 23 rotate under the action of the wire tension. At this time, the two turntables 25 rotate with the rotation of the first wire harness roller 21 and the second wire harness roller 23, and the pin 26 rotates in a circle with the center of the turntable 25 as the center. At this time, the push rod 28 drives the push plate 29 to swing back and forth up and down under the action of the pin 26 and the sleeve 27. At this time, the push plate 29 squeezes the airbag 30 when it swings back and forth up and down. After being squeezed, the gas inside the airbag 30 will be transported to the inside of the squeezing pad 34 through the conduit 35. The air pressure inside the squeezing pad 34 will increase with the input of the gas. At this time, the squeezing pad 34 will swell under the action of the air pressure, and the swollen squeezing pad 34 will act on the wire. Since the squeezing pad 34 is made of flexible material, the squeezing pad 34 can protect the wire while squeezing the wire. Therefore, the squeezing of the squeezing pad 34 can effectively tighten the wire, so as to facilitate the restraint of the wire, thereby improving the wiring effect of the wire and preventing the wire from falling off during connection, thereby affecting the operation of the vacuum circuit breaker.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent vacuum circuit breaker, comprising a housing (1), the bottom of the housing (1) being connected to a supporting trolley by bolts, characterized in that: A vacuum arc extinguishing chamber (11) is provided on one side of the housing (1), a control panel (8) is connected to one side of the vacuum arc extinguishing chamber (11) by bolts, and two control buttons (9) are provided on one side of the control panel (8), a closing and opening indicator light and an energy storage indicator light are provided on one side of the control panel (8), respectively, a control system is provided on one side of the inner wall of the vacuum arc extinguishing chamber (11), a support (3) is connected to one side of the housing (1) by bolts, and a plurality of poles (4) are connected to the top of the support (3) by bolts, contact arms (5) are welded to both ends of one side of the poles (4), and a contact (6) is provided on one side of the contact arm (5), a terminal block (12) is connected to one side of the inner wall of the vacuum arc extinguishing chamber (11) near the bottom by bolts, a first wire harnessing mechanism (15) is provided on one side of the vacuum arc extinguishing chamber (11), and the first wire harnessing mechanism (15) is located above the terminal block (12).

2. The intelligent vacuum circuit breaker according to claim 1, characterized in that: The four control buttons (9) are named from left to right as an opening button and a closing button, and the opening button and the closing button are electrically connected to the control system respectively.

3. The intelligent vacuum circuit breaker according to claim 1, characterized in that: A bracket (2) is connected between the outer walls on both sides and the top of the shell (1) by bolts, and a storage rack (10) is connected to one side of the bracket (2) by bolts, and the bottom of the storage rack (10) is connected to the top of the shell (1) by bolts.

4. The intelligent vacuum circuit breaker according to claim 3, characterized in that: One side of the top of the housing (1) is connected to an aviation socket (7) via bolts, and one end of the aviation socket (7) is stored inside the storage rack (10).

5. The intelligent vacuum circuit breaker according to claim 1, characterized in that: The first wire-bundling mechanism (15) comprises a restraining frame (13), two rotating shafts (17), two limiting rollers (18), a first wire-bundling roller (21) and a second wire-bundling roller (23), and one side of the restraining frame (13) is connected to one side of the vacuum arc extinguishing chamber (11) by bolts, a plurality of limiting openings (14) are arranged on the top of the restraining frame (13), two ends of the two rotating shafts (17) are respectively connected to two sides opposite to the limiting openings (14) by bearings to form a rotational connection, and the two limiting rollers (18) are fixedly sleeved on the rotating shaft (17). 7), two ends of one side of the limiting opening (14) are respectively connected with a first fixing frame (20) and a second fixing frame (22) by bolts, the first fixing frame (20) is located above the second fixing frame (22), the two opposite sides of the first fixing frame (20) are rotatably connected to the first wire beam roller (21) by bearings, the two ends of the second wire beam roller (23) are rotatably connected to the second fixing frame (22) by bearings, and the first wire beam roller (21) and the second wire beam roller (23) are arranged in a straight line.

6. The intelligent vacuum circuit breaker according to claim 5, characterized in that: The outer walls of the two limiting rollers (18) are each provided with a plurality of anti-slip grooves (19), and the two limiting rollers (18) are both made of elastic material.

7. The intelligent vacuum circuit breaker according to claim 5, characterized in that: A second wire harness mechanism (16) is provided at a position near the bottom of the inner portion of the limiting opening (14), and the second wire harness mechanism (16) is located below the first wire harness mechanism (15), so that the first wire harness mechanism (15) and the second wire harness mechanism (16) are matched.

8. The intelligent vacuum circuit breaker according to claim 1, characterized in that: The second wire harness mechanism (16) is composed of two rotating disks (25), two push rods (28), two push plates (29), two air bags (30), two support plates (31) and a wire harness assembly (24), and one side of the support plate (31) is connected to the limiting opening (14) by bolts, the air bag (30) is located between the bottom of the push plate (29) and the top of the support plate (31), and the push plate (29) is slidably connected to the limiting opening (14), one of the rotating disks (25) is welded to one end of the first wire harness roller (21), and the other rotating disk (25) is welded to one end of the second wire harness roller (23), and a pin shaft (26) is welded near the top of one side of the two rotating disks (25), and a shaft sleeve (27) is rotatably sleeved on the outer wall of the pin shaft (26), and two ends of the push rod (28) are respectively connected to the bottom of the shaft sleeve (27) and the top of the push plate (29) by hinges.

9. The intelligent vacuum circuit breaker according to claim 8, characterized in that: The cable harness assembly (24) is composed of a cable harness seat (32) and two extrusion pads (34), and the two ends of the cable harness seat (32) are fixedly connected to the inner wall of the limiting opening (14), and a cable harness opening (33) is provided through the top of the cable harness seat (32), and the two opposite sides of the cable harness opening (33) are bonded to the two extrusion pads (34), and the extrusion pads (34) are made of a hollow elastic material, and a catheter (35) is provided between the extrusion pad (34) and the airbag (30).

Citation Information

Patent Citations

  • Novel vacuum circuit breaker

    CN208422770U

  • Indoor vacuum circuit breaker

    CN207038422U

  • Vacuum encapsulation having an empty chamber

    US20080041825A1