CN212277132U - Tripping device - Google Patents
Tripping device Download PDFInfo
- Publication number
- CN212277132U CN212277132U CN202020851057.3U CN202020851057U CN212277132U CN 212277132 U CN212277132 U CN 212277132U CN 202020851057 U CN202020851057 U CN 202020851057U CN 212277132 U CN212277132 U CN 212277132U
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- Prior art keywords
- iron core
- skeleton
- coil
- return spring
- ejector pin
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000003068 static effect Effects 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000005690 magnetoelectric effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a release relates to circuit breaker technical field, including first skeleton, first coil, first iron core, first reset spring and the first ejector pin of moving, wherein, first skeleton outside cover is equipped with first coil is equipped with in proper order from the inside one end of first skeleton first iron core and outside cover are equipped with first ejector pin of first reset spring, first ejector pin stretch out from the first skeleton other end, insert in the second skeleton, follow the inside one end of second skeleton is played and is equipped with the second in proper order and moves iron core and second ejector pin, the second moves the iron core and all is equipped with the first through-hole that first ejector pin can pass in the second ejector pin. Aiming at the technical problem of incomplete tripping of the circuit breaker in the prior art, the circuit breaker has reliable action under the condition of low voltage, and can be completely tripped.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to release.
Background
A circuit breaker is a mechanical switching device for switching on, carrying and breaking a current under normal circuit conditions, and in which contacts are opened when a residual current reaches a prescribed value under prescribed conditions, and the current is carried for a certain time and automatically broken under prescribed abnormal circuit conditions (e.g., low voltage). When overload, short circuit or leakage current are too high, tripping is not thorough, and under the condition of low voltage, action is reliable, so that the circuit breaker can be tripped thoroughly.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
To the not thorough technical problem of circuit breaker dropout among the prior art, the utility model provides a release, it can make the circuit breaker dropout thorough, under the low-voltage condition, and the action is reliable, can make the circuit breaker thoroughly dropout.
2. Technical scheme
In order to solve the above problem, the utility model provides a technical scheme does:
the utility model provides a release, includes first skeleton, first coil, first movable iron core, first reset spring and first ejector pin, wherein, first skeleton outside cover is equipped with first coil is equipped with in proper order from the inside one end of first skeleton first movable iron core and outside cover are equipped with first reset spring's first ejector pin, first ejector pin stretch out from the first skeleton other end, insert in the second skeleton, follow the inside one end of second skeleton is equipped with the second in proper order and moves iron core and second ejector pin, the second moves the first through-hole that the iron core and second ejector pin can pass all to be equipped with in the iron core.
Optionally, a first contact surface larger than the cross section of the first ejector rod body is arranged at one end of the first ejector rod, which is in contact with the first movable iron core.
Optionally, one end of the first return spring is adjacent to the first contact surface, and the other end of the first return spring is adjacent to the end of the other end of the first framework or adjacent to the end of one end of the second framework.
Optionally, one end of the first movable iron core is adjacent to the shell supporting piece, and the other end of the first movable iron core is adjacent to the first ejector rod.
Optionally, the end parts of the two ends of the first framework are provided with first annular bulges for assembling the first coil.
A release comprises a second framework, a second movable iron core, a second ejector rod, a second reset spring and a second coil, wherein the second coil is sleeved outside the second framework; the second movable iron core and a second ejector rod sleeved with the second return spring are sequentially arranged at one end in the second framework; first through holes through which the first ejector rod can pass are formed in the second movable iron core and the second ejector rod; and a second through hole through which the second ejector rod can pass is formed in the end part of the other end of the second framework.
Optionally, still include quiet iron core, quiet iron core is located inside the second skeleton, and is adjacent with second skeleton other end tip.
Optionally, the end portions of the two ends of the second framework are provided with second annular protrusions for assembling the second coil.
Optionally, one end of the second return spring is adjacent to the second movable iron core, and the other end of the second return spring is adjacent to the stationary iron core or the end of the other end of the second framework.
Optionally, an annular groove or a step matched with the second return spring is arranged in the stationary iron core.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
according to the electric release provided by the embodiment of the application, the electric leakage release and the electromagnetic system work independently and do not interfere with each other. When the electric leakage system works, the electric leakage iron core moves to push the aluminum ejector rod to release the mechanism. When the electromagnetic system works, the movable iron core of the electromagnetic system moves to push the ejector rod of the electromagnetic system to release the mechanism. The leakage tripping and the electromagnetic system tripping are stable in performance, particularly the leakage tripping can work normally under the condition of low voltage, the assembly is convenient, and the action is reliable.
The leakage release is arranged at the rear side of the movable iron core of the electromagnetic system and consists of a leakage release framework, a leakage iron core, an aluminum ejector rod and a reset spring. The leakage release is supported by one side of the leakage iron core close to the shell, the other side of the leakage iron core close to the aluminum ejector rod, the center of the leakage release sequentially penetrates through the reset spring, the movable iron core of the electromagnetic system and the center hole of the plastic ejector rod, and the leakage release is supported outside the coil framework of the electromagnetic system in a reset mode by the reset spring with a smaller force value.
The electromagnetic system is provided with a coil framework, a plastic ejector rod, an iron core spring, a movable iron core, a static iron core, a coil and a magnetic yoke. When the electromagnetic system works, the movable iron core pushes the plastic ejector rod and the iron core spring to move to release.
The leakage release and the electromagnetic system work independently and do not interfere with each other. When the electric leakage system works, the electric leakage iron core moves to push the ejector rod to release the mechanism. When the electromagnetic system works, the movable iron core of the electromagnetic system moves to push the ejector rod to release the mechanism. The leakage tripping and the electromagnetic system tripping are stable in performance, particularly the leakage tripping can work normally under the condition of low voltage, the assembly is convenient, and the action is reliable.
Drawings
Fig. 1 is a schematic view of a trip apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic view of a first skeleton structure according to an embodiment of the present invention.
Fig. 3 is a schematic view of a second skeleton structure according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a second push rod according to an embodiment of the present invention.
Fig. 5 is a schematic view of a second movable iron core according to an embodiment of the present invention.
Fig. 6 is a schematic structural view of a first push rod according to an embodiment of the present invention.
Fig. 7 is a schematic view of a first movable iron core according to an embodiment of the present invention.
Fig. 8 is a schematic view of a static iron core according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of a first return spring according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a second return spring according to an embodiment of the present invention.
Fig. 11 is a schematic view of a magnetic yoke structure according to an embodiment of the present invention.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the embodiments illustrated in the drawings.
Example 1
The utility model provides a release, includes first skeleton 102, first coil 101, first movable iron core 104, first reset spring 106 and first ejector pin 105, wherein, first skeleton 102 outside cover is equipped with first coil 101, be equipped with in proper order from the inside one end of first skeleton 102 first movable iron core 104 and outside cover are equipped with first ejector pin 105 of first reset spring 106, first ejector pin 105 stretches out from the first skeleton 102 other end, inserts in the second skeleton 202, follows the inside one end of second skeleton 202 is equipped with second movable iron core 203 and second ejector pin 204 in proper order, the second is moved in the iron core 203 and all is equipped with the first through-hole that first ejector pin 105 can pass in the second ejector pin 204.
As shown in fig. 1, the first release 1 is described above, leakage current is input to the first coil 101, and after the first coil 101 is electrified, a magnetoelectric effect is generated to attract the first movable iron core 104 to act and push the first push rod 105, the first return spring 106 is compressed, and the first push rod 105 penetrates through the through hole to push the trip frame of the circuit breaker to act, so as to separate the moving contact from the stationary contact. The second framework 202, which forms the second release, is isolated from the above components and does not affect each other.
As one of the possible implementation manners of this embodiment, a first contact surface 1051 larger than the cross section of the body of the first plunger 105 is provided at one end of the first plunger 105 contacting with the first plunger 104. As shown in fig. 6, the first contact surface 1051 increases the contact surface between the first plunger 105 and the first plunger 104, and the force is uniform and stable.
Example 2
In the trip unit according to this embodiment, an improvement may be made on the basis of embodiment 1, where one end of the first return spring 106 is adjacent to the first contact surface 1051, and the other end of the first return spring 106 is adjacent to the other end of the first bobbin 102 or the one end of the second bobbin 202.
The first framework 102 and the second framework 202 are both fixed on a shell of the circuit breaker. As shown in fig. 1 and 9, when the first coil 101 is de-energized, the first movable iron core 104 is no longer stressed, and the first movable iron core 104 and the first push rod 105 can be reset in the first framework 102 by the elastic force of the compressed first reset spring 106.
When the other end of the first return spring 106 is adjacent to the other end of the first framework 102, the first return spring 106 is compressed between the first movable iron core 104 and the other end of the first framework 102; when the other end of the first return spring 106 is adjacent to one end of the second bobbin 202, the first return spring 106 is compressed between the first plunger 104 and the one end of the second bobbin 202.
As one of the possible implementation manners of this embodiment, one end of the first plunger 104 is adjacent to the casing support 103, and the other end of the first plunger 104 is adjacent to the first ram 105. Referring to fig. 1 and 7, a schematic structural diagram of the first plunger 104 is characterized. As one of the possible implementation manners of this embodiment, the end portions of both ends of the first bobbin 102 are provided with first annular protrusions 1021 for assembling the first coil 101. As shown in fig. 1 and 2, the first coil 101 is sleeved outside the first frame 102 and located between the first protrusions 1021 at two ends of the first frame 102.
Example 3
The trip unit of this embodiment is the second trip unit 2 according to the trip unit described in embodiment 1 or 2, and includes a second frame 202, a second movable iron core 203, a second push rod 204, a second return spring 205, and a second coil 201, where the second coil 201 is sleeved outside the second frame 202; the second movable iron core 203 and a second ejector rod 204 sleeved with the second return spring 205 are sequentially arranged at one end inside the second framework 202; a first through hole through which the first push rod 105 can pass is formed in each of the second movable iron core 203 and the second push rod 204; a second through hole through which the second ejector rod 204 can pass is formed in the end part of the other end of the second framework 202; as shown in fig. 1, when the second coil 201 is powered on to generate a magnetoelectric effect, the first movable iron core 203 acts to push the second push rod 204, the second return spring 205 is compressed, the second push rod 204 penetrates out of the second through hole to push the trip frame, and the trip frame drives the movable contact to separate the movable contact from the fixed contact.
Example 4
A release of the present embodiment, according to the release described in the above embodiment 1, 2 or 3, can be improved as follows: the magnetic suspension type magnetic suspension device further comprises a static iron core 206, wherein the static iron core 206 is located inside the second framework 202 and is adjacent to the end part of the other end of the second framework 202. As shown in fig. 1, when the second coil 201 is energized, the stationary core 206 is energized to cooperate with the second coil 201, so as to increase the strength of the magnetoelectric effect, further attract the second movable core 203 to act, and push the second plunger 204 to act, so as to separate the moving contact from the stationary contact, thereby tripping the switch.
As one of the possible implementation manners of this embodiment, the end portions of both ends of the second bobbin 202 are provided with second annular protrusions 2021 for fitting the second coil 201. As shown in fig. 1 and 2, the second coil 201 is sleeved outside the first frame 202 and located between the second protrusions 2021 at two ends of the first frame 202.
As one of the possible implementation manners of this embodiment, one end of the second return spring 205 is adjacent to the second movable iron core 203, and the other end of the second return spring 205 is adjacent to the stationary iron core 206 or the end of the second framework 202. As shown in fig. 1 and 10, after the second coil 201 is de-energized, the second plunger 203 is no longer stressed, and the compressed second return spring 205 rebounds to return the second plunger 203 and the second plunger 204.
Example 5
A release of the present embodiment, according to the release described in the above embodiment 1 or 2 or 3 or 4, can be improved as follows: an annular groove or a step matched with the second return spring 205 is arranged in the static iron core 206. As shown in fig. 1 and 10, when the other end of the second return spring 205 is adjacent to the stationary core 206, a step matching with the second return spring 205 is provided in the stationary core 206 to block the other end of the compressed second return spring 205; when the other end of the second return spring 205 is adjacent to the end of the other end of the second frame 202, an annular groove matched with the second return spring 205 is formed in the stationary core 206, so as to allow the second return spring 205 to pass through.
As shown in fig. 1 and 11, a magnetic yoke 4 is disposed at the bottom of the second coil 201, the magnetic yoke 4 is connected to a stationary contact 3, and the stationary contact 3 is connected to a stationary iron core 206. When the circuit where the circuit breaker is located is short-circuited, the short-circuit current passes through the static contact 3 and the yoke 4 to electrify the second coil 201, and the short-circuit current passes through the static contact 3 to electrify the static iron core 206.
As shown in fig. 4, the second push rod 204 is provided with a second contact surface 2041 having a cross section larger than the cross section of the second push rod 204, so as to increase the contact surface between the second push rod 204 and the second movable iron core 203, and when the second movable iron core 203 operates, the second push rod 204 can be stably pushed to operate.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (10)
1. A release is characterized by comprising a first framework, a first coil, a first movable iron core, a first return spring and a first ejector rod, wherein,
first skeleton outside cover is equipped with first coil, is equipped with in proper order from the inside one end of first skeleton first move iron core and outside cover and be equipped with first reset spring's first ejector pin, first ejector pin stretches out from the first skeleton other end, inserts in the second skeleton, follows the inside one end of second skeleton is equipped with the second in proper order and moves iron core and second ejector pin, the second moves the iron core in and all is equipped with the first through-hole that first ejector pin can pass in the second ejector pin.
2. The trip unit of claim 1, wherein the end of the first plunger contacting the first plunger has a first contact surface larger than the cross-section of the body of the first plunger.
3. The trip unit of claim 2, wherein the first return spring has one end adjacent the first contact surface and the other end adjacent the other end of the first leg or the end of the second leg.
4. The trip unit of claim 1, wherein the first plunger has one end adjacent the housing support and another end adjacent the first push rod.
5. The trip unit of claim 1, wherein the first bobbin has first annular protrusions at both ends thereof for fitting the first coil.
6. A trip unit, characterized in that the trip unit according to any one of claims 1 to 5 comprises a second bobbin, a second movable iron core, a second ejector pin, a second return spring, and a second coil, wherein,
the second coil is sleeved outside the second framework;
the second movable iron core and a second ejector rod sleeved with the second return spring are sequentially arranged at one end in the second framework;
first through holes through which the first ejector rod can pass are formed in the second movable iron core and the second ejector rod;
and a second through hole through which the second ejector rod can pass is formed in the end part of the other end of the second framework.
7. The trip unit of claim 6, further comprising a stationary core positioned within the second leg adjacent the other end of the second leg.
8. The trip unit of claim 6, wherein the ends of the second bobbin at both ends are provided with second annular protrusions for fitting the second coil.
9. The trip unit of claim 7, wherein one end of the second return spring is adjacent to the second movable core, and the other end of the second return spring is adjacent to the stationary core or the end of the second bobbin.
10. The electrical release of claim 9, wherein the stationary core has an annular recess or step therein that mates with the second return spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020851057.3U CN212277132U (en) | 2020-05-20 | 2020-05-20 | Tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020851057.3U CN212277132U (en) | 2020-05-20 | 2020-05-20 | Tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212277132U true CN212277132U (en) | 2021-01-01 |
Family
ID=73878613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020851057.3U Active CN212277132U (en) | 2020-05-20 | 2020-05-20 | Tripping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212277132U (en) |
-
2020
- 2020-05-20 CN CN202020851057.3U patent/CN212277132U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee after: Zhejiang Chuangqi Electric Co.,Ltd. Address before: 325600 No. 18, Sha Hung Road, North white elephant Town, Yueqing City, Wenzhou, Zhejiang. Patentee before: ZHEJIANG CHUANGQI ELECTRIC Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |