CN220821399U - Permanent magnet spring double-operation circuit breaker for mining high-explosive cabinet - Google Patents
Permanent magnet spring double-operation circuit breaker for mining high-explosive cabinet Download PDFInfo
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- CN220821399U CN220821399U CN202322580768.8U CN202322580768U CN220821399U CN 220821399 U CN220821399 U CN 220821399U CN 202322580768 U CN202322580768 U CN 202322580768U CN 220821399 U CN220821399 U CN 220821399U
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- shell
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- 238000005065 mining Methods 0.000 title claims abstract description 15
- 239000002360 explosive Substances 0.000 title description 2
- 230000007246 mechanism Effects 0.000 claims abstract description 82
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 238000004146 energy storage Methods 0.000 claims abstract description 10
- 238000004880 explosion Methods 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 47
- 229910052742 iron Inorganic materials 0.000 claims description 22
- 230000003068 static effect Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 230000008569 process Effects 0.000 description 5
- 230000010354 integration Effects 0.000 description 4
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model provides a mining permanent magnet spring double operation circuit breaker for high explosion cabinet belongs to circuit breaker technical field. The circuit breaker comprises a circuit breaker shell, wherein a solid-sealed polar pole is fixed outside the circuit breaker shell, and a conductive arm is connected to the solid-sealed polar pole; the lower part in the breaker shell is provided with a transmission main shaft; a permanent magnet mechanism and an auxiliary switch are arranged on the left side inside the circuit breaker shell; the middle part inside the breaker shell is provided with a capacitor and a permanent magnet controller; an energy storage spring and a spring operating mechanism are arranged on the right inside the circuit breaker shell; the outside of circuit breaker casing left side is equipped with the secondary connector, and the outside of circuit breaker casing right side is equipped with closing interface and separating brake interface. The utility model ensures that the circuit breaker has the remote control convenience of the permanent magnet mechanism and the operation function of the spring mechanism under special conditions, and the two operation mechanisms are mutually noninterfere, so that the circuit breaker body has two sets of operation modes in actual operation, and the operation reliability of a power grid is improved.
Description
Technical Field
The utility model belongs to the technical field of circuit breakers, and particularly relates to a permanent magnet spring double-operation circuit breaker for a mining high-explosion cabinet, which can be matched with a high-explosion-proof cabinet body used in the 12kV mining industry, and can embody the intellectualization, integration, safety and humanization of the traditional 12kV mining circuit breaker.
Background
The development speed of the electric power technology in China is high, and especially the development and the update of the conventional circuit breaker industry are improved, so that the intelligent level is increased; however, circuit breakers for special applications are slow to develop due to individual industry barriers; in recent years, the country has put forward the requirement of 'digital mine' for mining industry products, and has put forward new requirements for mining circuit breakers; in addition to meeting conventional power distribution, control and protection requirements, there is a need for a mining switch that meets the need for safe and reliable operation, which requires the mining switch to be intelligent and safe, with the most reliable mode being two reliable modes of operation.
At present, small modified circuit breakers and permanent magnet circuit breakers of a handcart type high-voltage vacuum circuit breaker VS1-12 series widely used in a power distribution system of the domestic mining industry have the following defects:
1) The VS1-12 series circuit breaker is a spring operating mechanism, which essentially comprises a motor for storing energy for a spring, releases spring energy during closing, pushes the circuit breaker to move towards the closing direction, and simultaneously stores energy for a breaking spring; when the breaker is opened, the mechanical lock catch is released, and the contact pressure spring and the opening spring pull the breaker to move towards the opening direction. The spring operating mechanism has a large number of parts, so that clamping stagnation or interlocking faults can easily occur, and faults occur with a high probability.
2) Because the circuit breaker driven by the permanent magnet mechanism has a simple structure, compared with a spring operating mechanism, 70% of mechanical parts are reduced, and on the basis of the structure, the permanent magnet mechanism is less prone to mechanical failure, and meanwhile, the permanent magnet mechanism is more suitable for frequent operation occasions and has high durability. However, the driving of the permanent magnet mechanism needs to use a special controller and a capacitor with larger capacity for driving; it can be said that almost all permanent magnet circuit breakers in the market rely on permanent magnet controllers, and the permanent magnet circuit breakers cannot operate when there is no permanent magnet controller or no operating power supply.
Based on the problems of the prior art described above, improvements are therefore required.
Disclosure of utility model
The utility model solves the technical problems that: the utility model provides a permanent magnet spring double-operation circuit breaker for a mining high-explosion cabinet, which aims at the spring type vacuum circuit breakers VS1-12 and the conventional permanent magnet circuit breakers widely used in the current market, and performs optimization integration design from the aspects of intelligence, integration, safety and humanization so that the permanent magnet type vacuum circuit breaker has high durability and reliability, and simultaneously integrates a set of independent spring mechanisms; the permanent magnet operating mechanism is adopted to drive the breaker to switch on and off during normal operation, and the spring operating mechanism can be adopted for emergency operation when the permanent magnet operating mechanism cannot operate.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
The permanent magnet spring double-operation circuit breaker for the mining high-explosion cabinet comprises a circuit breaker shell, wherein a solid-sealed pole is fixed outside the circuit breaker shell, and a conductive arm is connected to the solid-sealed pole;
The lower part in the circuit breaker shell is provided with a transmission main shaft; a permanent magnet mechanism and an auxiliary switch are arranged on the left side inside the circuit breaker shell; a capacitor and a permanent magnet controller are arranged in the middle of the inside of the circuit breaker shell; an energy storage spring and a spring operating mechanism are arranged on the right inside the circuit breaker shell; the outer part of the left side of the circuit breaker shell is provided with a secondary connector, and the outer part of the right side of the circuit breaker shell is provided with a closing interface and a separating interface;
The secondary connector is electrically connected with the permanent magnet controller, the permanent magnet controller is electrically connected with the capacitor, the capacitor is electrically connected with the permanent magnet mechanism, the output of the permanent magnet mechanism is connected with the input of the transmission main shaft, and the transmission main shaft is connected with the solid-sealed polar pole; the auxiliary switch is connected with the transmission main shaft;
The switching-on interface is connected with the spring operating mechanism, the spring operating mechanism is connected with the energy storage spring, the spring operating mechanism is connected with the transmission main shaft, and the switching-off interface is connected with the spring operating mechanism.
Further limiting the scheme, the permanent magnet mechanism comprises an outer magnetic yoke, a central shaft penetrates through the outer magnetic yoke, moving iron, static iron, a permanent magnet and a coil are arranged inside the outer magnetic yoke in a social mode, the moving iron and the static iron are sleeved on the central shaft, the outer wall of the static iron is connected with the inner wall of the outer magnetic yoke, the permanent magnet and the coil are sleeved outside the moving iron, and the outer wall of the coil is connected with the inner wall of the outer magnetic yoke.
Further limiting the scheme, the solid-sealed polar pole comprises an epoxy resin shell, a vacuum arc-extinguishing chamber is arranged inside the epoxy resin shell, an upper wire outlet seat is connected to the upper end of the vacuum arc-extinguishing chamber, a lower wire outlet seat is connected to the lower end of the vacuum arc-extinguishing chamber, an insulating pull rod is connected to the lower end of the lower wire outlet seat, and a contact spring is arranged in the insulating pull rod.
Further limiting the scheme, the transmission main shaft is connected with the solid-sealed polar pole through a four-bar linkage.
Further limiting the scheme, the lower part of the breaker shell is provided with an electric propulsion mechanism.
Compared with the prior art, the utility model has the advantages that:
1. The scheme is to optimize and integrate design aiming at spring type vacuum circuit breakers VS1-12 and conventional permanent magnet type circuit breakers widely used in the current market from the aspects of intellectualization, integration, safety and humanization, so that the spring type vacuum circuit breakers have high durability and reliability of the permanent magnet type circuit breakers, and meanwhile, a set of independent spring mechanisms are integrated; during normal operation, a permanent magnet operating mechanism is adopted to drive the breaker to switch on or off; when the permanent magnet mechanism is operated, the permanent magnet controller, the capacitor and the secondary control element are utilized to release energy to the permanent magnet mechanism, the permanent magnet mechanism driving mechanism drives the main shaft to enable the inner conductors of the solid-sealed polar poles to be in contact, and power transmission and power failure operations are completed; in the process, the spring mechanism part does not act; when the permanent magnet mechanism is not operated, the connecting rod outside the cabinet body is operated with the switching-on interface of the circuit breaker to store energy for the energy storage spring, so that switching-on operation is completed; after closing, the transmission main shaft can be driven to rotate through the brake separating interface to finish brake separating operation; the spring operating mechanism can be used for operation in an emergency without an external control power supply in the operation process of the spring mechanism. According to the structure, through the design of the permanent magnet spring double-operation circuit breaker, the circuit breaker simultaneously has the remote permanent magnet mechanism control convenience and the spring mechanism operation function under special conditions, so that the circuit breaker body has two sets of operation modes in actual operation, and the operation reliability of a power grid is improved;
2. The permanent magnet spring double-operation circuit breaker mainly comprises a permanent magnet mechanism and a spring mechanism which are not mutually interfered when being respectively operated, are independent and mutually connected, and can reliably drive the switching-on and switching-off operation of the arc extinguishing chamber according to technical requirements;
3. The circuit breaker in this scheme has electric propulsion mechanism, but remote operation circuit breaker is from experimental position to working position or from working position back to experimental position, can avoid the people to operate before the cabinet body, possesses the interface of manual operation under the emergency again simultaneously.
Drawings
Fig. 1 is a schematic view illustrating an internal structure of a circuit breaker according to the present utility model;
Fig. 2 is a schematic structural view of a circuit breaker with a solid-sealed pole;
FIG. 3 is a schematic diagram of a permanent magnet mechanism according to the present utility model;
FIG. 4 is a schematic view of the structure of the encapsulated pole in the present utility model;
Fig. 5 is a schematic diagram of a four-bar linkage mechanism according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
Referring to fig. 1-5, embodiments of the present utility model are described in detail.
This embodiment: the permanent magnet spring double-operation circuit breaker for the mining high-explosion cabinet is shown in figures 1 and 2, and comprises a circuit breaker shell 1, wherein a solid-sealed pole 13 is fixed outside the circuit breaker shell 1, and a conductive arm 14 is connected to the solid-sealed pole 13;
The lower part in the breaker shell 1 is provided with a transmission main shaft 4; the left side inside the breaker shell 1 is provided with a permanent magnet mechanism 2 and an auxiliary switch 5; a capacitor 6 and a permanent magnet controller 7 are arranged in the middle of the inside of the breaker shell 1; the right side inside the breaker shell 1 is provided with an energy storage spring 8 and a spring operating mechanism 9, and the right side extends out of an operating rod for interlocking with the operation of the explosion-proof cabinet. The circuit breaker is characterized in that a secondary connector 3 is arranged outside the left side of the circuit breaker shell 1, and a closing interface 10 and a separating interface 11 are arranged outside the right side of the circuit breaker shell 1.
The secondary connector 3 is electrically connected with the permanent magnet controller 7, the permanent magnet controller 7 is electrically connected with the capacitor 6, the capacitor 6 is electrically connected with the permanent magnet mechanism 2, the output of the permanent magnet mechanism 2 is connected with the input of the transmission main shaft 4, and the transmission main shaft 4 is connected with the solid-sealed polar pole 13; the switching-on interface 10 is connected with the spring operating mechanism 9, the spring operating mechanism 9 is connected with the energy storage spring 8, the spring operating mechanism 9 is connected with the transmission main shaft 4, and the switching-off interface 11 is connected with the spring operating mechanism 9; the auxiliary switch 5 is connected with the transmission main shaft 4, and can acquire the position state of the transmission main shaft 4, and is electrically connected with the permanent magnet controller 7 and the secondary connector 3.
Specifically, as shown in fig. 3, the permanent magnet mechanism 2 comprises an outer magnetic yoke, a central shaft 2-2 is arranged on the outer magnetic yoke in a penetrating manner, a moving iron 2-3, a static iron 2-4, a permanent magnet 2-5 and a coil 2-6 are arranged inside the outer magnetic yoke in a social manner, the moving iron 2-3 and the static iron 2-4 are sleeved on the central shaft 2-2, the outer wall of the static iron 2-4 is connected with the inner wall of the outer magnetic yoke, the permanent magnet 2-5 and the coil 2-6 are sleeved outside the moving iron 2-3, and the outer wall of the coil 2-6 is connected with the inner wall of the outer magnetic yoke.
Specifically, as shown in fig. 4, the solid-sealed polar pole 13 comprises an epoxy resin housing 13-1, a vacuum arc-extinguishing chamber 13-2 is arranged in the epoxy resin housing 13-1, an upper wire outlet seat 13-3 is connected to the upper end of the vacuum arc-extinguishing chamber 13-2, a lower wire outlet seat 13-4 is connected to the lower end of the vacuum arc-extinguishing chamber 13-2, an insulation pull rod 13-5 is connected to the lower end of the lower wire outlet seat 13-4, and a contact spring is arranged in the insulation pull rod 13-5.
Specifically, as shown in fig. 5, the transmission main shaft 4 is movably connected with the four-bar linkage 15, so as to change the movement direction, the four-bar linkage 15 is fixedly bolted with the insulating pull rod in the solid-sealed pole 13 through a nut, when the switch is closed, the insulating pull rod moves upwards, the arc extinguishing chamber is conducted, when the switch is opened, the insulating pull rod moves downwards, and the arc extinguishing chamber is disconnected.
The main operating principle of the circuit breaker is as follows:
The main principle of the permanent magnet spring double-operation circuit breaker is as follows: the circuit breaker transmits power to a permanent magnet controller 7 of the circuit breaker through a secondary connector 3, the permanent magnet controller 7 charges a capacitor 6, when a closing condition is met, an external closing instruction is sent to the permanent magnet controller 7 through the secondary connector 3, an IGBT element in the permanent magnet controller 7 releases energy of the capacitor 6 to forward current of a permanent magnet mechanism 2, the permanent magnet mechanism 2 generates a forward magnetic field to attract permanent magnets in the permanent magnet mechanism 2, so that a transmission main shaft 4 is driven, and an arc-extinguishing chamber in a solid-sealed polar pole 13 is conducted through a four-bar structure to complete closing action; when the breaker is opened, an external opening command signal supplies reverse current to the permanent magnet controller 7 through the secondary connector 3, the permanent magnet mechanism 2 generates a reverse magnetic field, the direction of the reverse magnetic field of the permanent magnet mechanism 2 is opposite to that of the permanent magnet mechanism 2, and the contact spring driving mechanism and the vacuum arc-extinguishing chamber in the solid-sealed pole 13 of the breaker move towards the opening direction to finish the opening action.
When an external control signal or a control power supply is powered off, a switching-on interface 10 on the right side of the circuit breaker can be driven by a switching-on lever outside the cabinet body, the energy storage spring 8 is charged by the spring operating mechanism 9 and rotates to a certain requirement, the energy of the energy storage spring 8 is released, the transmission main shaft 4 and the permanent magnet mechanism 2 are driven to move towards a switching-on direction until moving iron and static iron in the permanent magnet mechanism 2 are attracted, and the state is kept in a switching-on state; when the switch-off is performed, the switch-off lever outside the cabinet body drives the switch-off interface 11 on the right side of the circuit breaker, the direct driving mechanism drives the main shaft 4 to forcedly separate the moving iron and the static iron of the permanent magnet mechanism 2, and the circuit breaker contact pressure spring drives the vacuum arc extinguishing chamber to switch off.
The permanent magnet spring double-operation circuit breaker in the structure is mainly characterized in that the permanent magnet mechanism and the spring mechanism are not mutually interfered when respectively operating, and are independent and mutually connected, so that the switching-on and switching-off operation of the arc extinguishing chamber can be reliably driven according to technical requirements.
In this embodiment, the lower part of the breaker housing 1 is provided with an electric propulsion mechanism 12 with a driving motor. The main body part of the circuit breaker is connected with the electric propulsion mechanism through the circuit breaker shell after being integrally installed with the solid-sealed polar pole and the conductive arm. The electric propulsion mechanism 12 is used for moving the whole breaker from the test position to the working position when the operation table sends a vehicle entering command, and enabling the conductive arm to reliably contact with the cabinet body contact, so that the breaker can be remotely operated from the test position to the working position or back to the test position from the working position, manual operation in front of the cabinet body can be avoided, and meanwhile, the electric propulsion mechanism also has an interface for manual operation in emergency.
In conclusion, the permanent magnet spring double-operation circuit breaker has the remote permanent magnet mechanism control convenience and the spring mechanism operation function under special conditions, so that the circuit breaker body has two sets of operation modes in actual operation, and the operation reliability of a power grid is improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The permanent magnet spring double-operation circuit breaker for the mining high-explosion cabinet comprises a circuit breaker shell (1), wherein a solid-sealed polar pole (13) is fixed outside the circuit breaker shell (1), and a conductive arm (14) is connected to the solid-sealed polar pole (13); the method is characterized in that:
The lower part in the breaker shell (1) is provided with a transmission main shaft (4); a permanent magnet mechanism (2) and an auxiliary switch (5) are arranged on the left side inside the circuit breaker shell (1); a capacitor (6) and a permanent magnet controller (7) are arranged in the middle of the inside of the circuit breaker shell (1); an energy storage spring (8) and a spring operating mechanism (9) are arranged on the right side inside the circuit breaker shell (1); the circuit breaker is characterized in that a secondary connector (3) is arranged outside the left side of the circuit breaker shell (1), and a closing interface (10) and a separating interface (11) are arranged outside the right side of the circuit breaker shell (1);
The secondary connector (3) is electrically connected with the permanent magnet controller (7), the permanent magnet controller (7) is electrically connected with the capacitor (6), the capacitor (6) is electrically connected with the permanent magnet mechanism (2), the output of the permanent magnet mechanism (2) is connected with the input of the transmission main shaft (4), and the transmission main shaft (4) is connected with the solid-sealed polar pole (13); the auxiliary switch (5) is connected with the transmission main shaft (4);
The switching-on interface (10) is connected with the spring operating mechanism (9), the spring operating mechanism (9) is connected with the energy storage spring (8), the spring operating mechanism (9) is connected with the transmission main shaft (4), and the switching-off interface (11) is connected with the spring operating mechanism (9).
2. The permanent magnet spring double-operation circuit breaker for mine high-explosion cabinet according to claim 1, wherein: the permanent magnet mechanism (2) comprises an outer magnetic yoke, a central shaft (2-2) is arranged on the outer magnetic yoke in a penetrating mode, a moving iron (2-3), a static iron (2-4), a permanent magnet (2-5) and a coil (2-6) are arranged in the outer magnetic yoke, the moving iron (2-3) and the static iron (2-4) are sleeved on the central shaft (2-2), the outer wall of the static iron (2-4) is connected with the inner wall of the outer magnetic yoke, the permanent magnet (2-5) and the coil (2-6) are sleeved outside the moving iron (2-3), and the outer wall of the coil (2-6) is connected with the inner wall of the outer magnetic yoke.
3. The permanent magnet spring double-operation circuit breaker for mine high-explosion cabinet according to claim 1, wherein: the solid-sealed pole (13) comprises an epoxy resin shell (13-1), a vacuum arc-extinguishing chamber (13-2) is arranged inside the epoxy resin shell (13-1), an upper wire outlet seat (13-3) is connected to the upper end of the vacuum arc-extinguishing chamber (13-2), a lower wire outlet seat (13-4) is connected to the lower end of the vacuum arc-extinguishing chamber (13-2), an insulating pull rod (13-5) is connected to the lower end of the lower wire outlet seat (13-4), and a contact spring is arranged in the insulating pull rod (13-5).
4. The permanent magnet spring double-operation circuit breaker for mine high-explosion cabinet according to claim 1, wherein: the transmission main shaft (4) is connected with the solid sealing polar pole (13) through a four-bar linkage (15).
5. The permanent magnet spring double-operation circuit breaker for mine high-explosion cabinet according to claim 1, wherein: the lower part of the breaker shell (1) is provided with an electric propulsion mechanism (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322580768.8U CN220821399U (en) | 2023-09-22 | 2023-09-22 | Permanent magnet spring double-operation circuit breaker for mining high-explosive cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322580768.8U CN220821399U (en) | 2023-09-22 | 2023-09-22 | Permanent magnet spring double-operation circuit breaker for mining high-explosive cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220821399U true CN220821399U (en) | 2024-04-19 |
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ID=90710666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322580768.8U Active CN220821399U (en) | 2023-09-22 | 2023-09-22 | Permanent magnet spring double-operation circuit breaker for mining high-explosive cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220821399U (en) |
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2023
- 2023-09-22 CN CN202322580768.8U patent/CN220821399U/en active Active
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