CN204905192U - Hot protection mechanism of circuit breaker - Google Patents

Hot protection mechanism of circuit breaker Download PDF

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Publication number
CN204905192U
CN204905192U CN201520700243.6U CN201520700243U CN204905192U CN 204905192 U CN204905192 U CN 204905192U CN 201520700243 U CN201520700243 U CN 201520700243U CN 204905192 U CN204905192 U CN 204905192U
Authority
CN
China
Prior art keywords
plate
thermal
hypoplastron
hole
circuit breaker
Prior art date
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.)
Expired - Fee Related
Application number
CN201520700243.6U
Other languages
Chinese (zh)
Inventor
郑虎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yueqing Jialing Electrical Appliance Co Ltd
Original Assignee
Yueqing Jialing Electrical Appliance Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yueqing Jialing Electrical Appliance Co Ltd filed Critical Yueqing Jialing Electrical Appliance Co Ltd
Priority to CN201520700243.6U priority Critical patent/CN204905192U/en
Application granted granted Critical
Publication of CN204905192U publication Critical patent/CN204905192U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a hot protection mechanism of circuit breaker, include thermal element, bimetallic strip and go up the connecting rod, wherein: the thermal element includes upper plate, hypoplastron and connecting plate, upper plate and hypoplastron are connected to the connecting plate, the upper plate is parallel with the hypoplastron, the slope of the relative upper plate of connecting plate sets up, the hypoplastron is provided with the connecting hole, bimetallic strip has seted up the through -hole, connecting hole and through -hole riveting, the upper plate flection is the conducting block, the conducting block pastes tight electrically conductively with last connecting rod, when the scheme is adopted, upper plate and hypoplastron are parallel, shared spatial comparison is little, the connecting plate becomes less angle with the upper plate, make the upper plate and the skew coplanar of hypoplastron of thermal element, make hypoplastron and bimetallic strip contact conduction heat, thereby bimetallic strip receives the crooked mesh that reaches the dropout of thermogenesis in hypoplastron department, use the riveting to connect thermal element and bimetallic strip, connect the fastening, the hot -pressing film layer does not drop off easily, at the direct crooked play conducting block of upper plate department, moreover, the steam generator is simple in structure, machining is convenient.

Description

A kind of Thermal protection mechanism of circuit breaker
Technical field
The utility model relates to a kind of Thermal protection mechanism, and more particularly, it relates to a kind of Thermal protection mechanism of circuit breaker.
Background technology
Circuit breaker refer to the electric current that can close, carry and cut-off under normal loop condition and can close, the switching device of carrying and the electric current under cut-offfing abnormal loop condition in official hour.Existingly to be made up of parts such as bimetal leaf, heater element, draw bars for thermal release device for plastic circuit breaker; when rated current flows through thermal element or bimetal leaf; through after a period of time; bimetal leaf directly generates heat bending or induction heater element heat is bending; be arranged on bimetal leaf adjustment screw by adjustment again draw bar is promoted; operating mechanism is threaded off, circuit breaker disjunction, realize the overload protection to circuit.
China Patent No. is the thermal element mechanism of the circuit breaker of CN201120379858.5, and it comprises support, bimetallic original paper, thermal element and connector.This thermal element mechanism structure is complicated, needs to arrange special support to install bimetal leaf and thermal element, install loaded down with trivial details, and it is larger to take up space.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is the Thermal protection mechanism providing the simple circuit breaker of a kind of structure.
For achieving the above object; the utility model provides following technical scheme: a kind of Thermal protection mechanism of circuit breaker; comprise thermal element, bimetal leaf and upper connecting rod; wherein: described thermal element comprises upper plate, lower plate and connecting plate; described connecting plate connects upper plate and lower plate; described upper plate is parallel with lower plate; the relative upper plate of described connecting plate is obliquely installed; described lower plate is provided with connecting hole; described bimetal leaf offers through hole; described connecting hole and through hole riveted joint, described upper board part is bent into conducting block, and described conducting block and upper connecting rod are adjacent to conduction.
By adopting technique scheme, upper plate and lower plate be arranged in parallel, and do not bend at upper plate and lower plate body place, its cross section is linear and parallel, the thermal element of upper plate or lower plate is set relative to bending, institute takes up space smaller, save the space of circuit breaker internal, connecting plate becomes to be obliquely installed with upper plate, the upper plate of thermal element and lower plate is made to depart from same plane, lower plate is made to contact heat conduction with bimetal leaf, bimetal leaf is heated at lower plate place and produces bending thus reach the object of dropout, riveted joint is used to connect thermal element and bimetal leaf, connect fastening, difficult drop-off, process equipment is simple, easy to process, save cost, at upper plate, place directly bends out conducting block, structure is simple, easy to process.
The utility model is set to further: described conducting block lower end is provided with recess.
By adopting technique scheme, the brake forming of conducting block causes stress to concentrate, and provides the setting of recess, excessive stress will be caused to concentrate to curved edge time bending, prevents the distortion of thermal element and affects its use.
The utility model is set to further: described recess is set to rectangle.
By adopting technique scheme, the recess processing of rectangle is easy, saves cost.
The utility model is set to further: described connecting hole is set to two.
By adopting technique scheme, adopt diplopore riveted joint, it is more firm to connect, and prevents thermal element from rotating situation generation, and the position of thermal element is fixed, and is convenient to install.
The utility model is set to further: described lower plate is divided into wide plate and narrow boards, and described through hole is arranged on wide plate place, and one end of described wide plate is connected with upper plate, and the other end is connected with narrow boards, and the junction of described wide plate and narrow boards is provided with the fillet for transition.
By adopting technique scheme, the setting of narrow boards, save raw-material use, and the space decreased shared by thermal element, more easily differentiate the position of thermal element when mounted, avoid setup error, adopt fillet excessive, the stress reducing junction is concentrated, and improves the fatigue strength of thermal element.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the Thermal protection mechanism embodiment of a kind of circuit breaker of the utility model;
Fig. 2 is the structural representation of the thermal element of the Thermal protection mechanism embodiment of a kind of circuit breaker of the utility model.
Accompanying drawing illustrates: 1. thermal element; 2. bimetal leaf; 3. go up connecting rod; 11. upper plates; 12. connecting plates; 13. lower plates; 131. wide plate; 132. narrow boards; 14. connecting holes; 15. conducting blocks; 16. recesses.
Embodiment
Referring to figs. 1 through Fig. 2, the Thermal protection mechanism embodiment of a kind of circuit breaker of the utility model is described further.
A kind of Thermal protection mechanism of circuit breaker; comprise thermal element 1, bimetal leaf 2 and upper connecting rod 3; wherein: described thermal element 1 comprises upper plate 11, lower plate 13 and connecting plate 12; described connecting plate 12 connects upper plate 11 and lower plate 13; described upper plate 11 is parallel with lower plate 13; described connecting plate 12 and upper plate 11 one-tenth 10 ° of angles; described lower plate 13 is provided with connecting hole 14; described bimetal leaf 2 offers through hole; described connecting hole 14 and through hole riveted joint; described upper plate 11 bend portions is conducting block 15, and described conducting block 15 is adjacent to conduction with upper connecting rod 3.
Principle of the present utility model is: upper plate 11 is parallel with lower plate 13, and do not bend at upper plate 11 and lower plate 13 body place, its cross section is linear and parallel, relative to bending, upper plate 11 or lower plate 13 are set, institute takes up space smaller, save the space of circuit breaker internal, the angle that connecting plate 12 is less with upper plate 11 one-tenth, the upper plate 11 of thermal element 1 and lower plate 13 is made to depart from same plane, lower plate 13 is made to contact heat conduction with bimetal leaf 2, bimetal leaf 2 is heated at lower plate 13 place and produces bending thus reach the object of dropout, riveted joint is used to connect thermal element 1 and bimetal leaf 2, connect fastening, difficult drop-off, process equipment is simple, easy to process, save cost, at upper plate 11, place directly bends out conducting block 15, structure is simple, easy to process.
Preferably, described conducting block 15 lower end is provided with recess 16, and described recess 16 is set to rectangle.The advantage of the program is: the brake forming of conducting block 15 causes stress to concentrate, and provides the setting of recess 16, excessive stress will be caused to concentrate to curved edge time bending, prevents the distortion of thermal element 1 and affects its use; The recess 16 of rectangle is processed easy, saves cost.
Preferably, described connecting hole 14 is set to two, the advantage of the program: adopt diplopore riveted joint, it is more firm to connect, and prevents thermal element 1 from rotating situation generation, and the position of thermal element 1 is fixed, and is convenient to install.
Preferably, described lower plate 13 is divided into wide plate 131 and narrow boards 132, and described through hole is arranged on wide plate 131 place, and one end of described wide plate 131 is connected with upper plate 11, the other end is connected with narrow boards 132, and described wide plate 131 and the junction of narrow boards 132 are provided with the fillet for transition.
The principle of the program is: the setting of narrow boards 132, save raw-material use, and the space decreased shared by thermal element 1, more easily differentiate the position of thermal element 1 when mounted, avoid setup error, employing fillet is excessive, and the stress reducing junction is concentrated, and improves the fatigue strength of thermal element 1.
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 (5)

1. the Thermal protection mechanism of a circuit breaker; comprise thermal element, bimetal leaf and upper connecting rod; it is characterized in that: described thermal element comprises upper plate, lower plate and connecting plate, described connecting plate connects upper plate and lower plate, and described upper plate is parallel with lower plate; the relative upper plate of described connecting plate is obliquely installed; described lower plate is provided with connecting hole, and described bimetal leaf offers through hole, described connecting hole and through hole riveted joint; described upper board part is bent into conducting block, and described conducting block and upper connecting rod are adjacent to conduction.
2. the Thermal protection mechanism of a kind of circuit breaker according to claim 1, is characterized in that: described conducting block lower end is provided with recess.
3. the Thermal protection mechanism of a kind of circuit breaker according to claim 2, is characterized in that: described recess is set to rectangle.
4. the Thermal protection mechanism of a kind of circuit breaker according to claim 1, is characterized in that: described connecting hole is set to two.
5. the Thermal protection mechanism of a kind of circuit breaker according to claim 1; it is characterized in that: described lower plate is divided into wide plate and narrow boards; described through hole is arranged on wide plate place; one end of described wide plate is connected with upper plate; the other end is connected with narrow boards, and the junction of described wide plate and narrow boards is provided with the fillet for transition.
CN201520700243.6U 2015-09-10 2015-09-10 Hot protection mechanism of circuit breaker Expired - Fee Related CN204905192U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520700243.6U CN204905192U (en) 2015-09-10 2015-09-10 Hot protection mechanism of circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520700243.6U CN204905192U (en) 2015-09-10 2015-09-10 Hot protection mechanism of circuit breaker

Publications (1)

Publication Number Publication Date
CN204905192U true CN204905192U (en) 2015-12-23

Family

ID=54927351

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520700243.6U Expired - Fee Related CN204905192U (en) 2015-09-10 2015-09-10 Hot protection mechanism of circuit breaker

Country Status (1)

Country Link
CN (1) CN204905192U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810522A (en) * 2016-06-02 2016-07-27 常熟开关制造有限公司(原常熟开关厂) Heat element structure of releaser of circuit breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810522A (en) * 2016-06-02 2016-07-27 常熟开关制造有限公司(原常熟开关厂) Heat element structure of releaser of circuit breaker
CN105810522B (en) * 2016-06-02 2018-03-27 常熟开关制造有限公司(原常熟开关厂) The thermal element structure of circuit breaker release

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20151223

Termination date: 20180910