CN109904040B - Release and electrical switching device - Google Patents
Release and electrical switching device Download PDFInfo
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- CN109904040B CN109904040B CN201910186659.3A CN201910186659A CN109904040B CN 109904040 B CN109904040 B CN 109904040B CN 201910186659 A CN201910186659 A CN 201910186659A CN 109904040 B CN109904040 B CN 109904040B
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- 238000002955 isolation Methods 0.000 claims abstract description 58
- 238000012360 testing method Methods 0.000 abstract description 9
- 239000004020 conductor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention provides a release, comprising: outer casing (210), isolation picture peg (240) and protection module group (280), isolation picture peg (240) with protection module group (280) locate in outer casing (210), protection module group (280) are including protection module (281) and voltage bridge module (285), voltage bridge module (285) can convey voltage signal to protection module (281), isolation picture peg (240) can insert between protection module (281) and voltage bridge module (285), and can be right protection module (281) and voltage bridge module (285) carry out electrical isolation. The invention can lead the electric switch device not to need to disassemble the controller and damage the controller when carrying out electric test.
Description
Technical Field
The invention relates to the field of low-voltage electrical appliances, in particular to a release and an electrical switching device comprising the release.
Background
The electronic release is a circuit formed by electronic elements, detects the current of the main circuit, amplifies and pushes the distribution leakage protector, and is an important component in low-voltage electrical appliances. Document EP0843332Al discloses a current switching device comprising a trip unit connected to a current sensor and controlling the electrical switching of the device on the basis of information provided by the current sensor, the trip unit comprising a dedicated power supply module supplied by a voltage input to the switching device and generating a trip supply voltage, the dedicated power supply module supplying the trip unit when it is not in operation externally, the dedicated power supply module ensuring the proper operation of the trip unit even when the switching device is off. However, during certain electrical tests, such as those defined in the GB14048.2 and GB14048.1 standards, the input voltage supply is susceptible to dielectric failure, resulting in the input voltage supply being damaged, which in turn can cause damage to the trip unit.
In view of the above problem, document CN105590799A discloses a trip unit for an electrical switch, comprising a protective casing, a first electrical connection terminal, and a power supply module, wherein the power supply module comprises a second input/output terminal from which an input voltage obtained from the protective casing can be received and transmitted, and the power supply module is movable relative to the protective casing. Thus, in the test procedure described above, the power supply module can be moved to a certain isolation position by using this structure, so that it is not damaged by a specific operating condition or a specific electrical test. However, the scheme has a complex structure and more parts, and the economical efficiency cannot achieve the best effect.
Disclosure of Invention
Against this background, the present invention provides a trip unit which can achieve the object of avoiding the trip unit from being destroyed in the above-described limit test with a reduced number of parts and a simpler operation.
The technical scheme of the invention is as follows:
a trip unit, comprising: shell body, isolation picture peg and protection module group, keep apart the picture peg with protection module group locates in the shell body, protection module group is including protection module and voltage bridging module, voltage bridging module can convey voltage signal to protection module, it can insert to keep apart the picture peg between protection module and the voltage bridging module, and can be right protection module and voltage bridging module carry out electrical isolation.
Preferably, the outer casing comprises a casing base and a casing cover, the casing base and the casing cover are detachably fixed together and form a complete outer casing.
Preferably, the isolating insert plate is translatable or rotatable between an isolating position within the outer housing and an operating position, but is not permitted to escape the confines of the outer housing.
Preferably, the protection module group is fixed in the outer shell and is not movable.
Preferably, the protection module and the voltage bridge module are fixed in relative positions and electrically connected through the conductive terminals.
Preferably, when the isolation plugboard is located at the working position, the protection module is electrically connected with the voltage bridging module, and when the isolation plugboard is located at the isolation position, the electrical connection state is destroyed, so that electrical isolation is realized.
Preferably, the conductive terminal may be disposed on the protection module, the voltage bridge module, or the isolation board.
Preferably, the isolation inserting plate is provided with a stop block, and the stop block can prevent the isolation inserting plate from being separated from the outer shell.
Preferably, the conductive terminal is an elastic member.
Preferably, the isolation plugboard is provided with a plurality of through holes, and the through holes are matched with the conductive terminals.
Preferably, one end of the isolation inserting plate is provided with a holding part and an isolation part, and the through hole is formed in the isolation part.
Preferably, a boss is arranged between every two adjacent through holes.
Preferably, the end of the isolation part is provided with a guide inclined plane.
Preferably, the isolation inserting plate is cylindrical, and a raised electric conductor is arranged in the circumferential direction of the cylinder.
Preferably, the isolation plugboard is made of an insulating material.
Preferably, the release further comprises a microswitch, and the isolating plug board can be contacted with or separated from the microswitch.
Preferably, a stop surface is arranged in the isolation outer shell, and the stop surface can be contacted with the isolation inserting plate.
It is another object of the present invention to provide an electrical switching apparatus, such as a circuit breaker, including a trip unit as described above.
The electrical switching device comprises the following features: by changing the position state of the isolation plugboard, the tripper is ensured not to be dismantled and damaged in voltage-related test and operation.
The release and the electrical switching device have the following beneficial effects:
1) the invention can ensure that the controller does not need to be disassembled and the controller can not be damaged when the electrical switch device is electrically tested.
2) The invention has the advantages of less parts, simple processing technology and simple and convenient operation.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of an electrical switching apparatus including a voltage isolation release according to the present invention.
Fig. 2 is an appearance structure schematic diagram of the release of the invention.
Fig. 3 is an exploded schematic view of the trip unit of the present invention.
Fig. 4 is a partially enlarged schematic view of fig. 3.
Fig. 5 is a schematic view of the protection module, the voltage bridge module and the conductive terminal according to the present invention.
Fig. 6 is a schematic structural diagram of the isolating plugboard of the invention.
Fig. 7 is a schematic view of the engagement of the stop block of the isolating plate of the present invention with the trip unit housing in the operating position.
Fig. 8 is a schematic view of the internal structure of the isolating insert plate of the invention in an operating position.
Figure 9 is a schematic view of another angular internal configuration of the isolating insert plate of the present invention in an operating position.
Fig. 10 is a schematic view of the internal structure of the isolating insert plate of the present invention in an isolating position.
Fig. 11 is a schematic view of another angular internal configuration of the isolating insert plate of the present invention in an isolating position.
Fig. 12 is an exploded view of a third embodiment of the present invention.
FIG. 13 is a partially exploded view of a third embodiment of the present invention.
Fig. 14 is a schematic view of an isolated position of a fourth embodiment of the present invention.
Fig. 15 is a schematic view of the fourth embodiment of the present invention in its operating position.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
As shown in fig. 1 to 4, the present invention discloses an electrical switching apparatus 100, wherein a release 200 is disposed on the electrical switching apparatus 100, the release 200 includes an outer casing 210, an isolation plug board 240 and a protection module set 280, the outer casing 210 includes a casing base 211 and a casing cover 212, the casing base 211 and the casing cover 212 are detachably fixed together to form a complete outer casing 210, and the isolation plug board 240 and the protection module set 280 are both disposed in the outer casing 210. The housing base 211 and the housing cover 212 may be fixed by screws or may be fastened together by a snap, and in this embodiment, they are fixed by screws. Protection module group 280 includes protection module 281 and voltage bridge module 285, voltage bridge module 285 can with electrical switching apparatus 100's voltage signal transfer gives protection module 281, isolation picture peg 240 one end is located the outside of shell body 210, the other end passes shell body mask 212 locates the inside of shell body 210, and be located between protection module 281 and the voltage bridge module 285. The isolating insert plate 240 is movably disposed to translate relative to the outer housing 210 while electrically isolating the protection module 281 from the voltage bridge module 285.
Specifically, as shown in fig. 3 to fig. 5, a connection terminal 286 is disposed at one end of the voltage bridge module 285, and the connection terminal 286 is connected to an external power source to provide voltage for normal operation of the trip unit 200; a conductive terminal 282 is disposed between the voltage bridge module 285 and the protection module 281, the voltage bridge module 285 and the protection module 281 are connected or disconnected through the conductive terminal 282, and when the voltage bridge module 285 and the protection module 281 are connected, the trip 200 performs signal acquisition and conversion. The conductive terminal 282 may be disposed on the voltage bridge module 285 or on the protection module 281, in this embodiment, the conductive terminal 282 is disposed on the voltage bridge module 285, and the conductive terminal 282 is an elastic member.
Referring to fig. 6 to 9, one end of the isolating plug board 240 is provided with a handheld portion 245, the other end of the isolating plug board 240 is provided with an isolating portion 242, a protruding stop block 241 is disposed between the handheld portion 245 and the isolating portion 242, when the isolating plug board 240 is located at an operating position, a certain clearance is provided between the stop block 241 and the inner wall of the housing cover 212, the isolating portion 242 is provided with a plurality of through holes 243, the through holes 243 are used for accommodating the conductive terminals 282, and the conductive terminals 282 are in contact with the protection module 281 through the through holes 243, so that the voltage bridge module 285 and the protection module 281 are conducted. The number of the through holes 243 is equal to the number of the conductive terminals 282, the number of the conductive terminals 282 is equal to the number of the electrical switching devices, and the bosses 244 are provided between the adjacent through holes 243 on the isolation portion 242 to increase the creepage distance and the electrical gap of the conductive terminals 282, thereby improving the insulation performance. A guiding bevel is also provided at the end of the isolating portion 240 to better fit the conductive terminal 282.
Referring to fig. 10 to 11, when a force is applied to the isolating plug board 240 by the handheld portion 245 toward the outside of the trip unit, the isolating plug board 240 moves away from the voltage bridge module 285, when the stop block 241 contacts with the inner wall of the housing cover 212, the isolating plug board 240 stops moving, and due to the elasticity of the conductive terminal 282, when the isolating plug board 240 moves outward for a certain distance, the conductive terminal 282 is pressed into the through hole 243, so that the voltage bridge module 285 is disconnected from the protection module 281. At this point, the isolation board 240 is in the isolation position and performance testing of the electrical switching apparatus can begin.
After performance testing, the accessible handheld portion 245 is right keep apart picture peg 240 and exert an orientation the inside effort of release, keep apart picture peg 240 to being close to the direction motion of voltage bridge module 285, when moving a certain distance, keep apart picture peg 240 and setting up when the backstop face 213 on casing base 211 contacts, keep apart picture peg 240 stop motion, at this moment, conductive terminal 282 pops out through-hole 243, and with protection module 281 contacts to make keep apart picture peg 240 in operating position, then will keep apart the picture peg with outer casing 210 is fixed together through the screw can.
Certainly, the through holes 243 in the isolation interposer 240 may also be replaced by raised conductive pillars, the arrangement of the through holes 243 is eliminated, the conductive pillars penetrate through the isolation portion 242, and the two ends of the conductive pillars may respectively contact the protection module 281 and the voltage bridge module 285, at this time, an acting force is also applied to the isolation interposer 240, so that the two ends of the conductive pillars may respectively contact the protection module 281 and the voltage bridge module 285, thereby achieving electrical conduction therebetween; applying a force opposite to the above-mentioned force to the isolating plug board 240 can separate the two ends of the conductive pillar from the ranges of the protection module 281 and the voltage bridge module 285, so as to achieve the electrical disconnection therebetween.
Example two
The embodiment discloses another tripper structure, and the difference between the embodiment and the first embodiment is that the working position and the isolation position of the isolation plugboard are reversed by adjusting the position of the through hole on the isolation plugboard, and at this time, the electrical on-off movement process of the tripper is opposite to that of the embodiment.
EXAMPLE III
Referring to fig. 12 to 13, in this embodiment, another trip device is provided, in this embodiment, the protection module group of the trip device includes a protection module 281 and a plurality of micro switches 283, the micro switches 283 are installed on the protection module 281, and the micro switches 283 are arranged in pairs, opposite to each other, an isolation board 240 is provided with a handheld portion 245 at one end and an isolation portion 242 at the other end, the isolation portion 242 can be inserted between the micro switches 283 arranged in pairs, and an acting force is applied to the isolation board 240 through the handheld portion 245, so that the isolation portion 242 can be inserted into or pulled out from between the micro switches 283 arranged in pairs, thereby achieving electrical disconnection or conduction of the trip device.
Example four
As shown in fig. 14 and fig. 15, in this embodiment, an isolation board 240 is disposed between the protection module 281 and the voltage bridge module 285, the isolation board 240 includes a handheld portion 245 and an isolation portion 242, the isolation portion 242 has a cylindrical structure, a plurality of protruding conductors 249 are disposed in a circumferential direction of the isolation portion 242, and when a test is required, the handheld portion 245 rotates the isolation board 240 to make the conductors 249 contact the protection module 281 and the voltage bridge module 285 respectively, so as to achieve conduction between the protection module 281 and the voltage bridge module 285; after the test is finished, the hand-held unit 245 rotates the isolation board 240 to make the conductors 249 not contact with the protection module 281 and the voltage bridge module 285, respectively, so as to electrically disconnect the protection module 281 and the voltage bridge module 285.
In this embodiment, the isolation board 240 is an insulating member, and the conductor 249 is made of metal.
The invention also discloses an electrical switching device which is provided with the release in any one of the first embodiment to the fourth embodiment.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and therefore, it will be apparent to those skilled in the art that various changes, substitutions of equivalents, modifications, etc. can be made therein without departing from the spirit and scope of the invention and are intended to be included within the scope of the appended claims.
The above is merely a preferred embodiment of the present invention, and those skilled in the art can make various changes or modifications to the embodiment of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (9)
1. A trip unit, comprising: shell body (210), isolation picture peg (240) and protection module group (280), isolation picture peg (240) with protection module group (280) are located in shell body (210), its characterized in that: protection module group (280) are including protection module (281) and voltage bridge module (285), voltage bridge module (285) can convey voltage signal to protection module (281), the one end of isolation picture peg (240) is equipped with handheld portion (245), the other end of isolation picture peg (240) is equipped with isolation portion (242), isolation portion (242) insert between protection module (281) and voltage bridge module (285) or insert in protection module group (280), and can translation or rotation between isolation position in shell body (210) and the operating position, it is right protection module (281) and voltage bridge module (285) carry out electrical isolation.
2. The trip unit of claim 1, wherein the set of protection modules (280) is secured within the outer housing (210).
3. A trip unit according to claim 1, wherein the protection module (281) and the voltage bridge module (285) are fixed in relation to each other and are electrically connected by means of electrically conductive terminals (282).
4. A trip unit as claimed in claim 3, wherein the conducting terminals (282) are provided on the protection module (281), the voltage bridge module (285) or the isolating plug board (240).
5. The release according to claim 1, wherein the isolating insert plate (240) is provided with a stop block (241).
6. A trip unit according to claim 3, characterized in that the conductive terminal (282) is a resilient member.
7. The electrical release of claim 6, wherein the isolating insert plate (240) has a plurality of through holes (243), and the plurality of through holes (243) are adapted to mate with the conductive terminals (282).
8. Trip unit according to claim 1, characterized in that the outer housing (210) comprises a housing base (211), in which housing base (211) a stop surface (213) is provided.
9. An electrical switching apparatus, characterized in that it comprises a trip unit according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186659.3A CN109904040B (en) | 2019-03-13 | 2019-03-13 | Release and electrical switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910186659.3A CN109904040B (en) | 2019-03-13 | 2019-03-13 | Release and electrical switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109904040A CN109904040A (en) | 2019-06-18 |
| CN109904040B true CN109904040B (en) | 2022-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910186659.3A Active CN109904040B (en) | 2019-03-13 | 2019-03-13 | Release and electrical switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109904040B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2756095B1 (en) * | 1996-11-15 | 1998-12-24 | Schneider Electric Sa | CIRCUIT BREAKER WITH A CIRCUIT BREAKER AND PROCESSING, CALIBRATION AND COMMUNICATION MODULES |
| US6518866B1 (en) * | 1997-07-30 | 2003-02-11 | General Electric Company | Circuit breaker compartment door |
| FR3028348B1 (en) * | 2014-11-10 | 2016-12-30 | Schneider Electric Ind Sas | TRIGGER FOR ELECTRIC SWITCHING DEVICE AND ELECTRICAL SWITCHING DEVICE COMPRISING SUCH A TRIGGER |
| CN105679616B (en) * | 2016-03-28 | 2018-01-23 | 首瑞（天津）电气设备有限公司 | Breaker electronic controller and breaker |
| KR101890683B1 (en) * | 2016-12-29 | 2018-08-22 | 엘에스산전 주식회사 | Isolation mechanism of controller for circuit breaker |
| KR101912699B1 (en) * | 2017-07-27 | 2018-12-28 | 엘에스산전 주식회사 | Direct current air circuit breaker |
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2019
- 2019-03-13 CN CN201910186659.3A patent/CN109904040B/en active Active
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| Publication number | Publication date |
|---|---|
| CN109904040A (en) | 2019-06-18 |
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Effective date of registration: 20240521 Address after: 301800 No. 17-1 Chaoyang East Road, Koudong Industrial Park, Baodi Economic Development Zone, Baodi District, Tianjin, China Patentee after: SOOAR (TIANJIN) ELECTRICAL EQUIPMENT Co.,Ltd. Country or region after: China Address before: 102600 2nd floor, building 2, 29 Jinyuan Road, economic development zone, Daxing District, Beijing Patentee before: BEIJING JINGREN ELECTRIC APPLIANCE Co.,Ltd. Country or region before: China |