Bidirectional magnetic control driving device of circuit breaker
By adopting a two-way magnetron driving device in the circuit breaker, the bidirectional driving of the circuit breaker is achieved by using magnetic field changes, the response time and overload risk caused by the spring transmission structure in the prior art are solved, and faster response speed and higher control accuracy are achieved.
Patent Information
- Application Number
- CN202421720564.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In existing circuit breaker equipment, due to the damping effect of the spring transmission structure, the equipment response time is extended, increasing the risk of overload.
The circuit breaker bidirectional magnetron driving device is adopted to achieve bidirectional driving of the circuit breaker through the cooperation of the coil and the driving block, thereby reducing the use of the spring transmission structure.
It effectively shortens the response time of the circuit breaker, reduces the risk of overload, and improves the response speed and control accuracy of the equipment.
Smart Images
Figure CN222801732U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breaker equipment, in particular to a bidirectional magnetic control driving device of a circuit breaker. Background Art
[0002] A circuit breaker is an electrical device used to protect circuits from overload current and short-circuit current. Its main function is to quickly cut off the power supply when abnormal current is detected in the circuit to prevent equipment damage, fire or other dangerous situations. The circuit breaker includes an electromagnet, a thermal protection element and a trigger mechanism, which can trigger the action according to the changes in the current size and direction.
[0003] Existing technologies include: traditional circuit breakers use electromagnets as trigger elements. When the current exceeds the set value, the magnetic field generated by the electromagnet will cause the circuit breaker to trip and cut off the power supply. With the development of electronic technology, electronic circuit breakers have emerged. They use electronic components such as transistors and integrated circuits to achieve current detection and control, and can provide more precise protection and control functions. Bidirectional magnetic control drive devices use the magnetic field generated by electromagnets to control the action of circuit breakers. They have higher response speeds and more precise control capabilities, and can provide more reliable protection.
[0004] There are a large number of spring transmission structures inside traditional equipment. Due to the damping effect of the spring, the response time of the equipment is prolonged, which greatly increases the risk of equipment overload. Therefore, a bidirectional magnetic control drive device for circuit breaker is proposed to solve the above problem. Utility Model Content
[0005] In order to make up for the above deficiencies, the utility model provides a bidirectional magnetically controlled drive device for a circuit breaker, aiming to improve the problems of prolonged equipment response time and increased equipment overload risk caused by spring damping in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bidirectional magnetic control drive device for a circuit breaker comprises a shell, a coil 1 is fixedly connected to the inner rear side of the shell, a coil 2 is fixedly connected to the inner lower part of the shell, a fixed block 1 is fixedly connected to the inner lower part of the shell, the fixed block 1 is fixedly connected to the middle part of the coil 2, a driving block is slidably connected to the inner rear side of the shell, the rear end of the coil 2 abuts against the lower end of the driving block, the driving block is slidably connected to the inner side of the coil 1, a lever 1 is fixedly connected to the upper end of the driving block, a fixed rod 1 is fixedly connected to the inner upper part of the shell, and the lever 1 slides The lever is connected to the outer periphery of the fixed rod one, the front end of the lever one is rotatably connected to the lever two, the front end of the lever two is rotatably connected to the lever three, the inner front side of the shell is fixedly connected to a rotating rod, the rotation of the lever three is connected to the outer periphery of the rotating rod, the right side of the lever three is fixedly connected to the fixed rod two, the inner front side of the shell is fixedly connected to a fixed block three, the interior of the fixed block three is fixedly connected to a spring one, the lower end of the spring one is fixedly connected to the interior of the fixed rod two, the inner middle part of the shell is fixedly connected to an arc extinguishing chamber, a splicing assembly is provided inside the shell, and the splicing assembly is used to splice different numbers of circuit breakers together.
[0007] Furthermore, the splicing assembly includes a pull rod, which is slidably connected to the inner rear side of the shell, the middle part of the pull rod is fixedly connected to a limit plate, the middle outer periphery of the pull rod is sleeved with a spring 2, the upper and lower parts of the pull rod are fixedly connected to a clamping block 1, the right rear part of the shell is fixedly connected to two clamping blocks 2, and two sliding grooves are provided on the inner rear side of the shell, and the two clamping blocks 1 are respectively slidably connected to the inside of the two sliding grooves.
[0008] Furthermore, the rear end of the coil 2 is in the shape of a C-shaped plate.
[0009] Furthermore, the upper part and the lower part of the coil 1 are mirror image spirals.
[0010] Furthermore, the arc extinguishing chamber is made of mutually insulated metal plates, and the arc extinguishing chamber is located above the lower end of the coil one.
[0011] Furthermore, the rotating rod and the spring do not contact each other.
[0012] Furthermore, the lower end of the coil 1 is bifurcated into a C shape.
[0013] Furthermore, the two card blocks 2 are both J-shaped.
[0014] The utility model has the following beneficial effects:
[0015] 1. In the utility model, when the current of coil one suddenly increases, the magnetic field change generated by the upper part of coil one will push the driving block downward. At this time, the driving block pushes coil two away from contact with coil one, the passage is disconnected, and the thrust exerted on the driving block disappears. Due to inertia, the driving block will push coil two to contact the lower end of coil one. At this time, a passage is formed between coil one and coil two. The lower end of coil one will generate an upward thrust to push the driving block upward. The passage between coil one and coil two is disconnected again, and coil two rebounds and forms a passage with coil one for the third time. In this process, the arc generated by coil two and coil one will be absorbed by the arc extinguishing chamber, and the driving block will pull the lever one to move downward first and then rise. At this time, the lever one will pull the upper end of the lever two to rise first and then fall, and the lower end of the lever two will first pull the lower end of the lever three to rotate counterclockwise and then rotate back clockwise. At this time, the lower end of the lever three will be pulled to rotate around the rotating rod, and the lever three drives the fixed rod two to swing regularly, and the fixed rod two pulls the spring one to extend and retract, thereby realizing the function of two-way driving of the device.
[0016] 2. In the utility model, the two card blocks 2 are aligned with the other two slide slots, and the two card blocks 2 are pushed to be inserted into the inside of the other two slide slots. The two card blocks 2 push the other two card blocks 1 to move downward, and another pull rod is pushed to move downward, and the pull rod pushes the limit plate to descend, and the limit plate squeezes the spring 2 to contract and then rebounds to push the limit plate, the pull rod and the two card blocks 1 to rise slightly and clamp the inside of the two card blocks 2. Pushing the pull rod downward can make the two card blocks 1 descend, and then the two devices can be separated. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional schematic diagram of the bidirectional magnetic control driving device of the circuit breaker proposed by the utility model;
[0018] Figure 2 This is a schematic structural diagram of a coil 1 of a bidirectional magnetically controlled drive device for a circuit breaker proposed in the utility model;
[0019] Figure 3 This is a structural schematic diagram of the lever 2 of the bidirectional magnetic control drive device for a circuit breaker proposed by the utility model;
[0020] Figure 4 This is a structural schematic diagram of the arc extinguishing chamber of the bidirectional magnetic control drive device of the circuit breaker proposed by the utility model;
[0021] Figure 5 This is a structural schematic diagram of a card block 1 of a bidirectional magnetically controlled drive device for a circuit breaker proposed in the utility model.
[0022] Legend:
[0023] 1. Shell; 2. Coil 1; 3. Coil 2; 4. Fixed block 1; 5. Driving block; 6. Arc extinguishing chamber; 7. Lever 1; 8. Fixed rod 1; 9. Rotating rod; 10. Lever 2; 11. Lever 3; 12. Fixed rod 2; 13. Spring 1; 14. Fixed block 3; 15. Pull rod; 16. Limit plate; 17. Spring 2; 18. Block 1; 19. Block 2; 20. Slide groove. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Reference Figure 1 - Figure 4The utility model provides an embodiment: a bidirectional magnetic control drive device for a circuit breaker, comprising a shell 1, the shell 1 is used to support and protect the internal structure, a coil 2 is fixedly connected to the inner rear side of the shell 1, the coil 2 is used for conducting and generating a magnetic field, the upper and lower parts of the coil 2 are mirror image spirals, the mirror image spirals can make the upper and lower parts of the coil 2 generate magnetic lines of force in different directions, the lower end of the coil 2 is bifurcated into a C shape, the C shape can cover the coil 2 3 therein, the inner lower part of the shell 1 is fixedly connected to the coil 2 3, the coil 2 3 is used for conducting, the rear end of the coil 2 3 is in the shape of a C-shaped plate, the C-shaped plate can prevent the coil 2 from blocking The lower part of the inner part of the shell 1 is fixedly connected with a fixed block 4, and the fixed block 4 is used to prevent the coil 23 from bouncing excessively. The fixed block 4 is fixedly connected to the middle part of the coil 23. The inner rear side of the shell 1 is slidably connected with a driving block 5, and the driving block 5 is used to push the C-shaped block to move. The rear end of the coil 23 abuts against the lower end of the driving block 5, and the driving block 5 is slidably connected to the inner side of the coil 2. The upper end of the driving block 5 is fixedly connected with a lever 7, and the lever 7 is used to connect the driving block 5 and the lever 20. The upper part of the inner part of the shell 1 is fixedly connected with a fixed rod 8, and the fixed rod 8 is used to fix the moving distance of the lever 7. The lever 7 is slidably connected to the inner side of the coil 2. The outer periphery of the fixed rod 1 8 is connected to the front end of the lever 1 7, which is rotatably connected to the lever 2 10. The lever 2 10 is used to pull the lever 3 11 to move. The front end of the lever 2 10 is rotatably connected to the lever 3 11. The lever 3 11 is used to push and reset the lever 2 10. The inner front side of the shell 1 is fixedly connected to the rotating rod 9. The rotating rod 9 is used to fix the rotating shaft of the lever 3 11. The rotation of the lever 3 11 is connected to the outer periphery of the rotating rod 9. The right side of the lever 3 11 is fixedly connected to the fixed rod 2 12. The fixed rod 2 12 is used to fix one end of the spring 13. The inner front side of the shell 1 is fixedly connected to the fixed block 3 14. The fixed block 3 14 is used to fix the spring 1 At the other end of 13, a spring 13 is fixedly connected inside the fixed block three 14, and the spring 13 is used for rebounding and pulling the fixed rod two 12 back to its original position. The rotating rod 9 and the spring 13 do not contact each other, and the movement of the two is not interfered. The lower end of the spring 13 is fixedly connected to the inside of the fixed rod two 12, and an arc extinguishing chamber 6 is fixedly connected to the middle part of the inner part of the shell 1. The arc extinguishing chamber 6 is used to absorb the arc generated when the coil two 3 and the coil one 2 are separated. The arc extinguishing chamber 6 is located at the upper part of the lower end of the coil one 2, and the arc extinguishing chamber 6 is made of mutually insulated metal plates. A splicing assembly is arranged inside the shell 1, and the splicing assembly is used to splice different numbers of circuit breakers together.
[0026] Reference Figure 1 , Figure 2 and Figure 5The splicing assembly includes a pull rod 15, which is used to push the two clamping blocks 18 to move. The pull rod 15 is slidably connected to the inner rear side of the shell 1. The middle part of the pull rod 15 is fixedly connected to a limit plate 16, which is used to prevent the pull rod 15 from slipping off. The middle part of the pull rod 15 is sleeved with a spring 17, which is used to rebound and push the limit plate 16 back to its original position. The upper and lower parts of the pull rod 15 are fixedly connected with a clamping block 18. The two clamping blocks 18 are used for the splicing of the auxiliary equipment. The shell 1 There are two fixed blocks 19 at the rear right side, and the two blocks 19 are used to cooperate with the two blocks 18 to complete the splicing of the equipment. The two blocks 19 are both J-shaped, and the J-shape can make the two blocks 19 buckled inside the two blocks 18 without slipping. Two slide grooves 20 are provided on the inner rear side of the shell 1, and the two slide grooves 20 are used to provide sliding space between the two blocks 19 and the two blocks 18 respectively, and the two blocks 18 are slidably connected inside the two slide grooves 20 respectively.
[0027] Working principle: align the two blocks 2 19 of one shell 1 with the two slide grooves 20 of the other shell 1, and then push the first shell 1 to insert the two blocks 2 19 into the other two slide grooves 20. The two blocks 2 19 push the other two blocks 18 to move downward, and the pull rod 15 of the other shell 1 is pushed downward. At this time, the pull rod 15 pushes the limit plate 16 to descend, and the limit plate 16 squeezes the spring 2 17 to contract, and then rebounds to push the limit plate 16, the pull rod 15 and the two blocks 18 to rise slightly and be stuck in the two blocks 2 19 of the first shell 1. Pushing the pull rod 15 downward can make the two blocks 18 descend, and then the two devices can be separated. When the current of coil 1 2 suddenly increases, the upper part of coil 1 2 produces a sudden change in magnetic field, which will push the drive block 5 downward. At this time, the lower end of the drive block 5 will abut against the upper part of the C-shaped plate of coil 2 3, pushing coil 2 3 away from contact with coil 1 2, thereby opening the passage. Disconnected, the thrust on the driving block 5 disappears. Due to inertia, the driving block 5 will push the coil 2 3 to continue to descend and contact the lower end of the coil 1 2. At this time, a passage is formed between the coil 1 2 and the coil 2 3, and the lower end of the coil 1 2 will generate an upward thrust to push the driving block 5 upward. At this time, the passage between the coil 1 2 and the coil 2 3 is disconnected again, and the coil 2 3 rebounds and forms a passage with the coil 2 for the third time. In this process, the arc generated by the coil 2 3 and the coil 1 2 will be absorbed by the arc extinguishing chamber 6, and the driving block 5 will pull the lever 1 7 to move downward first and then rise. At this time, the lever 1 7 will pull the upper end of the lever 2 10 to rise first and then fall. The lower end of the lever 2 10 will first pull the lower end of the lever three 11 to rotate counterclockwise, and then rotate clockwise back to its original position. At this time, the lower end of the lever three 11 will be pulled to rotate around the rotating rod 9, and the lever three 11 drives the fixed rod 2 12 to swing regularly. The fixed rod 2 12 pulls the spring 13 to expand and contract, thereby realizing the operation of the equipment.
[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A bidirectional magnetically controlled drive device for a circuit breaker, comprising a housing (1), characterized in that: The inner rear side of the shell (1) is fixedly connected with a coil 1 (2), the inner lower part of the shell (1) is fixedly connected with a coil 2 (3), the inner lower part of the shell (1) is fixedly connected with a fixed block 1 (4), the fixed block 1 (4) is fixedly connected to the middle part of the coil 2 (3), the inner rear side of the shell (1) is slidably connected with a driving block (5), the rear end of the coil 2 (3) abuts against the lower end of the driving block (5), the driving block (5) is slidably connected to the inner side of the coil 1 (2), the upper end of the driving block (5) is fixedly connected with a lever 1 (7), the inner upper part of the shell (1) is fixedly connected with a fixed rod 1 (8), the lever 1 (7) is slidably connected to the outer periphery of the fixed rod 1 (8), the front end of the lever 1 (7) is rotated The housing (1) is rotatably connected to a lever 2 (10), the front end of the lever 2 (10) is rotatably connected to a lever 3 (11), the inner front side of the housing (1) is fixedly connected to a rotating rod (9), the rotating rod 3 (11) is rotatably connected to the outer periphery of the rotating rod (9), the right side of the lever 3 (11) is fixedly connected to a fixing rod 2 (12), the inner front side of the housing (1) is fixedly connected to a fixing block 3 (14), the inside of the fixing block 3 (14) is fixedly connected to a spring 1 (13), the lower end of the spring 1 (13) is fixedly connected to the inside of the fixing rod 2 (12), the inner middle part of the housing (1) is fixedly connected to an arc extinguishing chamber (6), and a splicing assembly is provided inside the housing (1), and the splicing assembly is used to splice together different numbers of circuit breakers.
2. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The splicing assembly includes a pull rod (15), the pull rod (15) is slidably connected to the inner rear side of the shell (1), the middle part of the pull rod (15) is fixedly connected to a limit plate (16), the outer periphery of the middle part of the pull rod (15) is provided with a spring 2 (17), the upper and lower parts of the pull rod (15) are fixedly connected to a clamping block 1 (18), the right rear part of the shell (1) is fixedly connected to two clamping blocks 2 (19), and the inner rear side of the shell (1) is provided with two sliding grooves (20), and the two clamping blocks 1 (18) are respectively slidably connected to the inside of the two sliding grooves (20).
3. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The rear end of the coil 2 (3) is in the shape of a C-shaped plate.
4. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The upper and lower parts of the coil one (2) are mirror image spirals.
5. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The arc extinguishing chamber (6) is made of mutually insulated metal plates, and the arc extinguishing chamber (6) is located above the lower end of the coil 1 (2).
6. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The rotating rod (9) and the spring one (13) do not contact each other.
7. The bidirectional magnetic control driving device for circuit breaker according to claim 1, characterized in that: The lower end of the coil 1 (2) is bifurcated into a C shape.
8. The bidirectional magnetic control driving device for circuit breaker according to claim 2, characterized in that: The two clamping blocks (19) are both J-shaped.