CN204558390U - Tripping device for circuit breaker - Google Patents
Tripping device for circuit breaker Download PDFInfo
- Publication number
- CN204558390U CN204558390U CN201520265212.2U CN201520265212U CN204558390U CN 204558390 U CN204558390 U CN 204558390U CN 201520265212 U CN201520265212 U CN 201520265212U CN 204558390 U CN204558390 U CN 204558390U
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- CN
- China
- Prior art keywords
- tripping device
- tripping
- circuit breaker
- snap close
- handle
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a kind of tripping device for circuit breaker, comprise base and be positioned at handle, snap close and the tripping device on base, described handle and tripping device are connected, described tripping device is articulated with on base, described tripping device is provided with strengthens clamping projection, described snap close comprises in barb-like clamping groove, when handle is "on" position, and clamping groove and the clamping of reinforcement clamping projection.The purpose of this utility model is to provide a kind of tripping device for circuit breaker, and its advantage to make its performance of the trip gear of circuit breaker more stable, is not easy the accident dropout phenomenon caused because of tripping and loosening of snap close under non-electric current reason.
Description
Technical field
The utility model relates to a kind of Protector for electric appliances, and more particularly, it relates to a kind of circuit breaker.
Background technology
Circuit breaker, also referred to as automatic air-break switch, can be used to connect and disjunction load circuit, also can be used to the motor controlling infrequently to start.Its function is equivalent to electrical appliance part or whole function summations such as knife switch, overcurrent relay, no-voltage relay, thermal relay and earth leakage protective device, is a kind of important protective device in low-voltage network.
Low-voltage circuit breaker comprises base and is positioned at handle, snap close and the tripping device on base, tripping device is articulated with on base, snap close comprises groove, handle is hinged to be provided with for connecting and driving the connector of tripping device, handle can drive tripping device and snap close clamping by connector, when handle is "on" position, groove is conflicted with the end of tripping device and is connected.
Circuit breaker on market, be connected owing to only just conflicting with snap close groove in the end of its tripping device, the connection less stable of the two, the accuracy that trip gear is used is low, to such an extent as to the stability of circuit breaker reduces, and there is the situation of often tripping operation.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of tripping device for circuit breaker, its advantage to make its performance of the trip gear of circuit breaker more stable, is not easy the accident dropout phenomenon caused because of tripping and loosening of snap close under non-electric current reason.
For achieving the above object, the utility model provides following technical scheme:
A kind of tripping device for circuit breaker, comprise base and be positioned at handle, snap close and the tripping device on base, described handle and tripping device are connected, described tripping device is articulated with on base, described tripping device is provided with strengthens clamping projection, described snap close comprises in barb-like clamping groove, when handle is "on" position, and clamping groove and the clamping of reinforcement clamping projection.
By adopting technique scheme, in the setting setting of barb-like clamping groove and tripping device being strengthened clamping projection on snap close, make both can more closely, appropriateness matches, described snap close can be formed with tripping device and interlock, reinforcement clamping projection particularly on snap close in barb-like clamping groove and on tripping device is formed and interlocks, its performance of the trip gear of circuit breaker can be made so more stable, be not easy the accident dropout phenomenon caused because of tripping and loosening of snap close under non-electric current reason.
The utility model is set to further: described tripping device is connected with moving contact, and described handle, tripping device, snap close and moving contact link successively.
The utility model is set to further: described moving contact includes Access Division, and described tripping device is provided with the cavity that Access Division is held in clamping, and described reinforcement clamping projection and cavity are placed in the pin joint both sides of tripping device and base respectively.
The utility model is set to further: described tripping device is hinged with tripping part, described tripping part and moving contact hinged, described handle is hinged to be provided with for connecting and driving the connector of tripping part, described handle drives tripping part by connector, and described tripping part drives tripping device and snap close clamping or disengaging by moving contact.
When circuit breaker trip, handle drives tripping part by connector, tripping device and snap close clamping or disengaging is driven by moving contact again by tripping part, it is strengthened clamping projection and departs from clamping groove on snap close to make the tripping device hinged with base, snap close rotates and the reinforcement clamping projection of clamping groove and tripping device is misplaced, until both are separated, destroy mutual interlocking to connect, and then complete trip action, tripping device with corresponding arrange to latch in when circuit breaker disconnects remove interlocking state, thus disconnect electrical connection.
By adopting technique scheme, the cavity that the Access Division of moving contact and tripping device are arranged can make handle in "on" position, cavity and Access Division clamping, handle, tripping part, moving contact, tripping device and snap close link successively, make the Interruption of circuit breaker can be more stable.
The utility model is set to further: described connector comprises first bending part hinged with handle and second bending part hinged with tripping part, and the first bending part is identical with the second bending part bearing of trend.
The utility model is set to further: described first bending part is parallel to the second bending part.
By adopting technique scheme, making handle and tripping device can be flexible by the first bending part on connector and the second bending part, linking together effectively more easily.
The utility model is set to further: described base is also provided with bimetal leaf and adjustment screw, described adjustment screw is installed on the side of bimetal leaf snap close and tripping device dorsad, and be connected with base contacts, one end of described adjustment screw is connected to bimetal leaf.
The utility model is set to further: the drive plate be arranged in parallel with bimetal leaf is extended in one end bending of described bimetal leaf, and described drive plate can be conflicted with one end of adjustment screw and is connected.
By adopting technique scheme, the setting of adjustment screw, can match with drive plate, make it touch drive plate by turning adjusting screw, thus make drive plate drive bimetal leaf, adjustment is carried out to the position of bimetal leaf, conveniently can finely tune like this, improve the accuracy of Interruption.
The utility model is set to further: one end of described snap close clamping groove dorsad is provided with can drives with bimetal leaf end the drive division contacted towards bimetal leaf.
By adopting technique scheme, make the contact between snap close and bimetal leaf, driving each other sensitiveer.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
The structural representation of embodiment when Fig. 1 is the utility model breaker open operation;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the B portion enlarged drawing of Fig. 2;
Fig. 4 is the structural representation of connector embodiment in the utility model;
The structural representation of embodiment when Fig. 5 is the utility model breaker closing;
Fig. 6 is the C portion enlarged drawing of Fig. 5.
Reference numeral: 1, base; 2, bimetal leaf; 3, drive plate; 4, adjustment screw; 5, snap close; 51, clamping groove; 52, drive division; 6, handle; 7, connector; 71, the first bending part; 72, the second bending part; 81, tripping device; 811, clamping projection is strengthened; 812, pin joint; 813, cavity; 82, tripping part; 9, moving contact; 91, Access Division.
Embodiment
Referring to figs. 1 through Fig. 6, the utility model embodiment is described further.
A kind of tripping device for circuit breaker, comprise base 1 and be positioned at handle 6, snap close 5 and the tripping device 81 on base 1, described handle 6 is connected with tripping device 81, described tripping device 81 is articulated with on base 1, described tripping device 81 is provided with strengthens clamping projection 811, described snap close 5 comprises in barb-like clamping groove 51, when handle 6 is in "on" position, and clamping groove 51 and the clamping of reinforcement clamping projection 811.Described tripping device 81 is connected with moving contact 9, and described handle 6, tripping device 81, snap close 5 and moving contact 9 link successively.Described moving contact 9 includes Access Division 91, and described tripping device 81 is provided with the cavity 813 that Access Division 91 is held in clamping, and reinforcement clamping projection 811 and cavity 813 are placed in the pin joint both sides of tripping device 81 and base 1 respectively.Described tripping device 81 is hinged with tripping part 82, described tripping part 82 is hinged with moving contact 9, described handle 6 is hinged to be provided with for connecting and driving the connector 7 of tripping part 82, described handle 6 drives tripping part 82 by connector 7, and described tripping part 82 drives tripping device 81 and snap close 5 clamping or disengaging by moving contact 9.
The structural representation of embodiment when wherein Fig. 5 is the utility model breaker closing;
Fig. 6 is the C portion enlarged drawing of Fig. 5.
In this embodiment, in the setting setting of barb-like clamping groove 51 and tripping device 81 being strengthened clamping projection 811 on such snap close 5, make both can more closely, appropriateness matches, described snap close 5 can be formed with tripping device 81 and interlock, particularly snap close 5 is formed with the reinforcement clamping projection 811 on tripping device 81 in barb-like clamping groove 51 and interlock, its performance of the trip gear of circuit breaker can be made so more stable, be not easy the accident dropout phenomenon caused because of tripping and loosening of snap close 5 under non-electric current reason.
The cavity 813 that the Access Division 91 of such moving contact and tripping device 81 are arranged can make handle 6 when being "on" position, cavity 813 and Access Division 91 clamping, handle 6, tripping part 82, moving contact, tripping device 81 and snap close 5 link successively, make the Interruption of circuit breaker can be more stable.
Described connector 7 comprises first bending part 71 hinged with handle 6 and second bending part 72 hinged with tripping part 82 in this embodiment, and the first bending part 71 is identical with the second bending part 72 bearing of trend.Described first bending part 71 is parallel to the second bending part 72.Make handle 6 and tripping device 81 can be flexible by the first bending part 71 on connector 7 and the second bending part 72 like this, link together effectively more easily.
In this embodiment described base 1 is also provided with bimetal leaf 2 and adjustment screw 4, described adjustment screw 4 is installed on the side of bimetal leaf 2 snap close 5 and tripping device 81 dorsad, and contact with base 1 and connect, and make it act on base 1 by turning adjusting screw 4 thus change the position of bimetal leaf 2.The drive plate 3 be arranged in parallel with bimetal leaf 2 is extended in one end bending of described bimetal leaf 2, and described drive plate 3 can be conflicted with one end of adjustment screw 4 and is connected.
Bimetal leaf 2 is arranged on base 1, particularly, described bimetal leaf 2 is arranged on the side of base 1, and adjustment screw 4 is arranged on bimetal leaf 2 side and contacts with base 1 to connect and makes it act on base 1 by turning adjusting screw 4 thus change the position of bimetal leaf 2.
The setting of such adjustment screw 4, can match with drive plate 3, makes it touch drive plate 3 by turning adjusting screw 4, thus make drive plate 3 drive bimetal leaf 2, adjustment is carried out to the position of bimetal leaf 2, can conveniently finely tune like this, improve the accuracy of Interruption.
Can promote snap close 5 during described bimetal leaf 2 heated bending and make tripping device 81 action realize the mechanical unlocking of circuit breaker, one end of snap close 5 clamping groove 51 dorsad is provided with can drives with bimetal leaf 2 end the drive division 52 contacted towards bimetal leaf 2.Make the contact between snap close 5 and bimetal leaf 2, driving each other sensitiveer like this.
The utility model tripping device for circuit breaker, the side of described bimetal leaf 2 is provided with adjustment screw 4, opposite side can drive with the snap close 5 of circuit breaker operation mechanism and be connected, and changes the relative distance of bimetal leaf 2 and snap close 5 thus reach adjustment circuit breaker tripping by turning adjusting screw 4.
Described drive plate 3 is for having elastically-deformable metallic plate, adjustment screw 4 can drive with the side of drive plate 3 and be connected, and make it act on drive plate 3 by turning adjusting screw 4, can drive after drive plate 3 is squeezed and be fixed on bimetal leaf 2 and move, thus the relative distance of adjustment bimetal leaf 2 and snap close 5.
Tripping part 82 is driven by handle 6 when breaker closing, and tripping part 82 can drive moving contact 9 hinged with it, its Access Division 91 of moving contact 9 of rotating can be connected in the cavity 813 on tripping device 81, now clamping groove 51 and reinforcement clamping just in time projection clamping completely, and it is maximum with clamping groove 51 opposing force to strengthen clamping projection 811.Moving contact 9 is formed with hard-wired fixed contact on base 1 and is electrically connected, and tripping device 81 arranges snap close 5 breaker closing phase lap is buckle-shaped and becomes to interlock with corresponding thus keep the "on" position of circuit breaker.
During normal power current, the magnetic force produced is not enough to allow action unshakable in one's determination, but when short circuit produces decades of times or the hundreds of times of big current to power current time, the magnetic field that coil produces, be enough to pull iron core, moving contact 9, tripping part 82, tripping device 81, snap close 5 are linked successively, and circuit breaker has just been threaded off.
In this particular embodiment, as the structural representation of embodiment when Fig. 1 is the utility model breaker open operation;
Shown in Fig. 2 is A portion enlarged drawing in Fig. 1 arrow indication circle;
Shown in Fig. 3 is B portion enlarged drawing in Fig. 2 arrow indication circle.
When mains side has a power failure or supply voltage is too low; the electromagnetic force that electromagnet produces is not enough to the pulling force overcoming reaction force spring; armature is pulled upwardly; handle 6, tripping part 82, moving contact, tripping device 81 and snap close 5 link successively and make circuit breaker breaking, play under-voltage and zero voltage protection effect.
Pull operating grip 6 when supply voltage is normal, the auxiliary contact of often opening of circuit breaker closes, and electromagnet obtains electric, and armature is held by electromagnet, and clamping groove 51 and reinforcement clamping just in time projection clamping completely, be locked in closing position, circuit breaker puts into operation.
When circuit breaker trip, handle 6 drives tripping part 82, moving contact 9 hinged is with it driven again by tripping part 82, its Access Division 91 of moving contact 9 of rotating can be connected in the cavity 813 on tripping device 81, thus it is strengthened clamping projection 811 and departs from clamping groove 51 on snap close 5 to make the tripping device 81 hinged with base 1, moving contact 9 is disconnected with hard-wired fixed contact on base 1 be electrically connected, and tripping device 81 removes interlocking state with the corresponding snap close 5 that arranges when circuit breaker disconnects, thus the "on" position of cut-off breaker.Bimetal leaf 2 heated bending drives snap close 5 to rotate by the Access Division 91 of the evagination that snap close 5 is arranged and the clamping groove 51 of snap close 5 is misplaced with the reinforcement clamping projection 811 of tripping device 81, until both are separated, destroy mutual interlocking to connect, and then make moving contact 98 be separated trip action with fixed contact 9.
The drive plate 3 be arranged in parallel with bimetal leaf 2 is extended in one end of base 1, and described drive plate 3 drives to contact with one end of adjustment screw 4 and connects.Adjustment screw 4 acts on the drive plate 3 of parallel double sheet metal 2 setting, can base 1 be made to drive bimetal leaf 2 to move in the process of adjustment bimetal leaf 2 more stable.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1. a tripping device for circuit breaker, comprise base and be positioned at handle, snap close and the tripping device on base, described handle and tripping device are connected, and described tripping device is articulated with on base, it is characterized in that: described tripping device is provided with strengthens clamping projection,
Described snap close comprises in barb-like clamping groove, when handle is "on" position, and clamping groove and the clamping of reinforcement clamping projection.
2. tripping device for circuit breaker according to claim 1, is characterized in that: described tripping device is connected with moving contact, and described handle, tripping device, snap close and moving contact link successively.
3. tripping device for circuit breaker according to claim 2, it is characterized in that: described moving contact includes Access Division, described tripping device is provided with the cavity that Access Division is held in clamping, and described reinforcement clamping projection and cavity are placed in the pin joint both sides of tripping device and base respectively.
4. the tripping device for circuit breaker according to claim 1 or 2 or 3, it is characterized in that: described tripping device is hinged with tripping part, described tripping part and moving contact hinged, described handle is hinged to be provided with for connecting and driving the connector of tripping part, described handle drives tripping part by connector, and described tripping part drives tripping device and snap close clamping or disengaging by moving contact.
5. tripping device for circuit breaker according to claim 4, is characterized in that: described connector comprises first bending part hinged with handle and second bending part hinged with tripping part, and the first bending part is identical with the second bending part bearing of trend.
6. tripping device for circuit breaker according to claim 5, is characterized in that: described first bending part is parallel to the second bending part.
7. tripping device for circuit breaker as claimed in any of claims 1 to 3, it is characterized in that: described base is also provided with bimetal leaf and adjustment screw, described adjustment screw is installed on the side of bimetal leaf snap close and tripping device dorsad, and be connected with base contacts, one end of described adjustment screw is connected to bimetal leaf.
8. tripping device for circuit breaker according to claim 7, is characterized in that: the drive plate be arranged in parallel with bimetal leaf is extended in one end bending of described bimetal leaf, and described drive plate can be conflicted with one end of adjustment screw and is connected.
9. tripping device for circuit breaker according to claim 8, is characterized in that: one end of described snap close clamping groove dorsad is provided with can drives with bimetal leaf end the drive division contacted towards bimetal leaf.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265212.2U CN204558390U (en) | 2015-04-28 | 2015-04-28 | Tripping device for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520265212.2U CN204558390U (en) | 2015-04-28 | 2015-04-28 | Tripping device for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558390U true CN204558390U (en) | 2015-08-12 |
Family
ID=53833473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520265212.2U Expired - Fee Related CN204558390U (en) | 2015-04-28 | 2015-04-28 | Tripping device for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801816A (en) * | 2017-11-16 | 2019-05-24 | 三信国际电器上海有限公司 | The processing method and breaker of a kind of operating mechanism, operating mechanism |
| CN111968891A (en) * | 2020-08-17 | 2020-11-20 | 浙江思创电力科技股份有限公司 | Locking device and circuit breaker |
-
2015
- 2015-04-28 CN CN201520265212.2U patent/CN204558390U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109801816A (en) * | 2017-11-16 | 2019-05-24 | 三信国际电器上海有限公司 | The processing method and breaker of a kind of operating mechanism, operating mechanism |
| CN111968891A (en) * | 2020-08-17 | 2020-11-20 | 浙江思创电力科技股份有限公司 | Locking device and circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20160428 |