CN215418062U - Double-linkage leakage circuit breaker - Google Patents

Abstract

The utility model relates to a double-linkage leakage circuit breaker which is characterized by comprising an N-level circuit breaker and an L-level circuit breaker, wherein the N-level circuit breaker and the L-level circuit breaker share one group of operating mechanisms, the N-level circuit breaker and the L-level circuit breaker are simultaneously broken, each operating mechanism comprises a moving contact support, a first moving contact and a second moving contact, the first moving contacts are positioned on two sides of the moving contact support, the first moving contacts are positioned on one side close to the N-level circuit breaker, and the second moving contacts are positioned on one side close to the L-level circuit breaker. By adopting one set of operating mechanism, the two-stage circuit breaker is simultaneously closed and opened, so that accessories are reduced, and the size can be reduced.

Description

Double-linkage leakage circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a double-linkage leakage circuit breaker.

Background

The leakage circuit breaker is widely applied, mainly used in industrial, commercial and civil residence places, and mainly used for short circuit overload protection and leakage protection. The product width is generally widened in current product 1P + N product adoption, assembles electric leakage module or under the unchangeable condition of current miniature circuit breaker foundation structure in current miniature circuit breaker's basis promptly, increases circuit board and tripping device and leakage current test device and realizes at miniature circuit breaker's upside or downside, and the product width is generally great. Or realize through extension product length, set up circuit board and test device tripping device promptly at miniature circuit breaker's upside or downside, consequently must increase the length of earth leakage circuit breaker, and the increase of consumer that present user used, the increase of distribution circuit, consequently the width of block terminal must increase or lengthen, but the block terminal design space in house generally is difficult to change, consequently current broad or longer earth leakage circuit breaker has not satisfied user's needs. At present, a small-size high-breaking-capacity residual current circuit breaker is urgently needed to fill the domestic blank.

The moving contact operating mechanisms of the existing residual current circuit breaker are complex, and the N-level circuit breaker and the L-level circuit breaker are respectively provided with an independent operating mechanism, so that the cost is increased and accessories are added by the two sets of operating mechanisms, and the size is enlarged.

Disclosure of Invention

The utility model aims to provide a double-linkage leakage circuit breaker, which realizes that an N-level circuit breaker and an L-level circuit breaker share one set of operating mechanism, reduces the cost and reduces the volume of the leakage circuit breaker.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a double-linkage residual current circuit breaker, its characterized in that includes N level circuit breaker and L level circuit breaker, a set of operating device is shared with L level circuit breaker to N level circuit breaker, N level circuit breaker and L level circuit breaker divide absolutely simultaneously.

The utility model further provides that the operating mechanism comprises a moving contact support, a first moving contact and a second moving contact, wherein the first moving contact and the second moving contact are positioned on two sides of the moving contact support, the first moving contact is positioned on one side close to the N-stage circuit breaker, and the second moving contact is positioned on one side close to the L-stage circuit breaker.

The utility model is further provided with a first articulated shaft and a second articulated shaft which are respectively formed on two sides of the lower end of the moving contact support, wherein the first articulated shaft is articulated with the first moving contact, and the second articulated shaft is articulated with the second moving contact.

The utility model further provides that the operating mechanism further comprises an operating handle, a trip buckle, a lock catch and a tension spring, wherein a linkage rod is arranged between the operating handle and the trip buckle, the trip buckle is hinged to the upper end part of the moving contact support, the lock catch is rotatably arranged in the middle of the moving contact support, the lock catch extends towards one side of the trip buckle and is in abutting fit with the trip buckle to limit the rotation of the trip buckle, one end of the tension spring is connected with the shell of the N-level circuit breaker, and the other end of the tension spring is connected with the moving contact support.

The utility model further provides a lock catch which comprises a butting part, a hinging part, a first indicating block and a second indicating block, wherein the butting part is butted against the jump buckle, the hinging part is hinged with the moving contact support, the first indicating block is arranged close to the first moving contact, the second indicating block is arranged close to the second moving contact, the first indicating block and the second indicating block are used for indicating the position of the lock catch, and indicating block observing holes are formed in a shell of the corresponding N-level circuit breaker and a shell of the corresponding L-level circuit breaker.

The utility model has the beneficial effects that by adopting one set of operating mechanism, the two-stage circuit breaker can be simultaneously closed and opened, the accessories are reduced, and the size can be reduced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic diagram of the L-class circuit breaker with the housing removed according to the embodiment of the utility model.

Fig. 3 is a schematic diagram of the embodiment of the utility model with the N-stage circuit breaker housing removed.

Fig. 4 is a perspective view of the jump buckle according to the embodiment of the utility model.

Reference numeral, 10, N-stage circuit breaker; 20. an L-class breaker; 30. a moving contact support; 40. a first moving contact; 50. a second moving contact; 60. a first hinge shaft; 70. a second hinge shaft; 80. an operating handle; 90. jumping and buckling; 100. locking; 110. a tension spring; 120. a linkage rod; 130. a contact part; 140. a hinge portion; 150. a first indication block; 160. a second indication block; 170. an indicator block sight hole; 180. a pin shaft;

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

As shown in fig. 1 to 4, the double-linkage residual current circuit breaker of the present invention includes an N-stage circuit breaker 10 and an L-stage circuit breaker 20, wherein the N-stage circuit breaker 10 and the L-stage circuit breaker 20 share a set of operating mechanism, and the N-stage circuit breaker 10 and the L-stage circuit breaker 20 are opened simultaneously.

The operating mechanism comprises a moving contact support 30, a first moving contact 40 and a second moving contact 50, wherein the first moving contact 40 and the second moving contact 50 are located on two sides of the moving contact support 30, the first moving contact 40 is located on one side close to the N-level circuit breaker 10, the second moving contact 50 is located on one side close to the L-level circuit breaker 20, a first hinge shaft 60 and a second hinge shaft 70 are respectively formed on two sides of the lower end of the moving contact support 30, the first hinge shaft 60 is hinged to the first moving contact 40, the second hinge shaft 70 is hinged to the second moving contact 50, the operating mechanism further comprises an operating handle 80, a trip 90, a lock catch 100 and a tension spring 110, a linkage rod 120 is arranged between the operating handle 80 and the trip 90, the trip 90 is hinged to the upper end portion of the moving contact support 30, and the lock catch 100 is rotatably arranged in the middle of the moving contact support 30, and the lock catch 100 extends towards one side of the trip buckle 90 to abut against the trip buckle 90 to cooperate with the trip buckle 90 to limit the rotation of the trip buckle 90, one end of the tension spring 110 is connected with the casing of the N-level circuit breaker 10, and the other end is connected with the movable contact support 30.

The latch 100 includes an abutting portion 130 abutting against the trip buckle 90, a hinge portion 140, a first indication block 150 and a second indication block 160, the abutting portion 130 is disposed near the trip buckle 90, the hinge portion 140 is hinged to the movable contact support 30, the first indication block 150 is disposed near the first movable contact 40, the second indication block 160 is disposed near the second movable contact 50, the first indication block 150 and the second indication block 160 are used for indicating the position of the latch 100, and the corresponding indication block observation holes 170 are disposed on the housing of the N-level circuit breaker 10 and the housing of the L-level circuit breaker 20.

The working principle of the utility model is as follows: the rotation of the moving contact is realized by the matching of the moving contact support 30 and the tension spring 110, the moving process of the moving contact is that when the static contact is switched on, the abutting part 130 of the lock catch 100 is abutted and matched with the trip buckle 90 to limit the rotation of the trip buckle 90, when the condition of the leakage circuit breaker acts, a release push rod of the circuit breaker pushes the lock catch 100 to rotate, the lock catch 100 rotates to enable the trip buckle 90 to be abutted and unlocked with the abutting part 130, at the moment, the moving contact support 30 rotates under the action of the tension spring 110 to realize the circuit breaker opening, and meanwhile, the handle also rotates to an opening state; when the switch is switched on, the handle is rotated, at this time, the linkage rod 120 drives the trip buckle 90 and the movable contact support 30 to rotate around the pin shaft 180, until the movable contact is contacted with the fixed contact, the handle continues to rotate at this time, and at this time, because the movable contact is contacted with the fixed contact and the position change cannot occur, the movable contact support 30 can only move wholly, so that the contact between the movable contact and the fixed contact is tighter, and the good contact between the movable contact and the fixed contact is ensured.

By adopting one set of operating mechanism, the two-stage circuit breaker is simultaneously closed and opened, so that accessories are reduced, and the size can be reduced.

Certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

More uses such as 10, N class circuit breakers; 20. an L-class breaker; 30. a moving contact support; 40. a first moving contact; 50. a second moving contact; 60. a first hinge shaft; 70. a second hinge shaft; 80. an operating handle; 90. jumping and buckling; 100. locking; 110. a tension spring; 120. a linkage rod; 130. a contact part; 140. a hinge portion; 150. a first indication block; 160. a second indication block; 170. an indicator block sight hole; 180. pin, etc., it is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or system comprising a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (5)

1. The utility model provides a double-linkage residual current circuit breaker, its characterized in that includes N level circuit breaker and L level circuit breaker, a set of operating device is shared with L level circuit breaker to N level circuit breaker, N level circuit breaker and L level circuit breaker divide absolutely simultaneously.

2. The double-linkage residual current circuit breaker according to claim 1, wherein the operating mechanism comprises a movable contact support, a first movable contact and a second movable contact, the first movable contact and the second movable contact are located on two sides of the movable contact support, the first movable contact is located on one side close to the N-stage circuit breaker, and the second movable contact is located on one side close to the L-stage circuit breaker.

3. A double-linkage residual current circuit breaker according to claim 2, wherein a first hinge shaft and a second hinge shaft are respectively formed at both sides of the lower end of the movable contact support, the first hinge shaft is hinged to the first movable contact, and the second hinge shaft is hinged to the second movable contact.

4. A double-linkage residual current circuit breaker according to claim 3, wherein the operating mechanism further comprises an operating handle, a trip buckle, a lock catch and a tension spring, a linkage rod is arranged between the operating handle and the trip buckle, the trip buckle is hinged to the upper end portion of the moving contact support, the lock catch is rotatably arranged in the middle of the moving contact support, the lock catch extends towards one side of the trip buckle and is abutted against the trip buckle to cooperate with the trip buckle to limit the rotation of the trip buckle, one end of the tension spring is connected with the casing of the N-level circuit breaker, and the other end of the tension spring is connected with the moving contact support.

5. The double-linkage residual current circuit breaker according to claim 4, wherein the latch comprises a contact portion, a hinge portion, a first indication block and a second indication block, the contact portion is arranged close to the jump buckle, the hinge portion is hinged to the movable contact support, the first indication block is arranged close to the first movable contact, the second indication block is arranged close to the second movable contact, the first indication block and the second indication block are used for indicating the position of the latch, and indication block observation holes are formed in a shell of the corresponding N-level circuit breaker and a shell of the corresponding L-level circuit breaker.

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