CN212010877U - Thermal tripping structure of miniature circuit breaker - Google Patents
Thermal tripping structure of miniature circuit breaker Download PDFInfo
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- CN212010877U CN212010877U CN202020447861.5U CN202020447861U CN212010877U CN 212010877 U CN212010877 U CN 212010877U CN 202020447861 U CN202020447861 U CN 202020447861U CN 212010877 U CN212010877 U CN 212010877U
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- circuit breaker
- miniature circuit
- trip bar
- trip
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Abstract
The utility model relates to a miniature circuit breaker thermal tripping structure, it belongs to the miniature circuit breaker field. The utility model discloses an operating device, trip bar and bimetallic strip, operating device are equipped with the hasp, and it has the slide groove to open on the hasp, and the one end of trip bar links to each other with this slide groove, and the other end of this trip bar links to each other with the bimetallic strip. The utility model has the advantages of simple and reasonable design, safe and reliable, convenient operation, assembly efficiency is high, satisfies the user demand.
Description
Technical Field
The utility model relates to a dropout structure especially relates to a miniature circuit breaker thermal tripping structure, and it belongs to the miniature circuit breaker field.
Background
The existing large-ampere small circuit breaker is placed on a cover due to space abdication and the motion track limit design of a trip bar, the trip bar is in a free state before the cover is assembled, and the existing large-ampere small circuit breaker cannot be correctly assembled on the set characteristics of the cover when the cover is assembled, so that the false assembly and the rework are caused; the trip bar has a determined assembly direction and is low in assembly efficiency.
Therefore, it is particularly necessary to provide a thermal tripping structure of a miniature circuit breaker, which has simple and reasonable structural design and is convenient to assemble.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design simple reasonable, safe and reliable, convenient operation, the hot trip gear of miniature circuit breaker that assembly efficiency is high.
The utility model provides a technical scheme that above-mentioned problem adopted is: this miniature circuit breaker thermal tripping structure, including operating device, operating device is equipped with hasp, its characterized in that: the lock catch is provided with a slide piece groove, one end of the trip bar is connected with the slide piece groove, the other end of the trip bar is connected with the bimetallic strip, the bimetallic strip is provided with an open slot, and the open slot is matched with the trip bar; the tripping rod is moved and limited, so that the assembly is convenient.
Preferably, the tripping rod of the utility model adopts a double-symmetrical structure; avoiding flip-chip.
Preferably, the size of slide groove corresponds with the size of trip bar, and this slide groove realizes the motion of trip bar and slides the orbit.
Preferably, the trip bar of the utility model comprises a first connecting part, a middle part and a second connecting part, wherein the first connecting part and the second connecting part are respectively vertically bent at two ends of the middle part; the flexible design of this structure increases assembly efficiency.
Compared with the prior art, the utility model, have following advantage and effect: the whole structure is simple and reasonable in design, safe and reliable, convenient and efficient to operate, the lock catch is provided with the sliding piece groove, the sliding track is arranged, and the assembly is convenient; the open slot on the bimetallic strip is used for limiting the motion of the trip rod, so that the horizontal linear motion is ensured, and the structure is simple and effective; the trip bar adopts bisymmetry structure, effectively avoids preventing the flip-chip.
Drawings
Fig. 1 is a schematic structural diagram of the embodiment of the present invention before tripping.
Fig. 2 is a schematic structural diagram of the embodiment of the present invention after tripping.
Fig. 3 is a schematic structural view of a trip bar according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a lock according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a bimetal of an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a cover body according to an embodiment of the present invention.
Fig. 7 is a schematic structural view of the trip bar of the embodiment of the present invention disposed on the cover.
In the figure: the tripping device comprises an operating mechanism 1, a lock catch 2, a tripping rod 3, a bimetallic strip 4, a cover body 5, a limiting structure 6, a sliding piece groove 21, a first connecting part 31, a middle part 32, a second connecting part 33, a full-symmetrical structure 34, an open slot 41, a pre-tripping A and a post-tripping B.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 7, the thermal trip structure of the miniature circuit breaker of the present embodiment includes an operating mechanism 1, a trip bar 3 and a bimetal 4, the operating mechanism 1 is provided with a latch 2, the latch 2 is provided with a slider groove 21, one end of the trip bar 3 is connected to the slider groove 21, and the other end of the trip bar 3 is connected to the bimetal 4.
The size of the slide groove 21 of the present embodiment corresponds to the size of the trip bar 3, and the slide groove 21 realizes the movement sliding track of the trip bar 3.
Referring to fig. 3, the trip bar 3 of the present embodiment adopts a fully symmetrical structure 34; the trip bar 3 includes a first connecting portion 31, a middle portion 32 and a second connecting portion 33, and the first connecting portion 31 and the second connecting portion 33 are respectively vertically bent at both ends of the middle portion 32.
Referring to fig. 5, a schematic structural diagram of a bimetallic strip 4 before tripping a and after tripping B is shown; the bimetal 4 is provided with an open slot 41, and the open slot 41 is matched with the trip bar 3.
In this embodiment, a position-limiting structure 6 is disposed in the cover 5; this limit structure 6 is arranged in placing trip bar 3 in the trip structure, the spacing of the assembly position of being convenient for.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (4)
1. The utility model provides a miniature circuit breaker thermal tripping structure, includes operating device, operating device is equipped with the hasp, its characterized in that: the buckle is provided with a slide piece groove, one end of the buckle is connected with the slide piece groove, the other end of the buckle is connected with the bimetallic strip, and the bimetallic strip is provided with an open slot which is matched with the buckle rod.
2. The thermal trip structure of a miniature circuit breaker according to claim 1, wherein: the trip bar adopts a double-symmetrical structure.
3. The thermal trip structure of a miniature circuit breaker according to claim 1, wherein: the size of the sliding piece groove corresponds to that of the trip rod, and the sliding piece groove realizes the movement sliding track of the trip rod.
4. The thermal trip structure of a small circuit breaker according to claim 1 or 3, wherein: the trip bar comprises a first connecting part, a middle part and a second connecting part, and the first connecting part and the second connecting part are respectively and vertically bent at two ends of the middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447861.5U CN212010877U (en) | 2020-03-31 | 2020-03-31 | Thermal tripping structure of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020447861.5U CN212010877U (en) | 2020-03-31 | 2020-03-31 | Thermal tripping structure of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212010877U true CN212010877U (en) | 2020-11-24 |
Family
ID=73422178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020447861.5U Active CN212010877U (en) | 2020-03-31 | 2020-03-31 | Thermal tripping structure of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212010877U (en) |
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2020
- 2020-03-31 CN CN202020447861.5U patent/CN212010877U/en active Active
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