CN204271013U - A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function - Google Patents

A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function Download PDF

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Publication number
CN204271013U
CN204271013U CN201420613445.2U CN201420613445U CN204271013U CN 204271013 U CN204271013 U CN 204271013U CN 201420613445 U CN201420613445 U CN 201420613445U CN 204271013 U CN204271013 U CN 204271013U
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China
Prior art keywords
district
alarm
fork
wholesale
small amount
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CN201420613445.2U
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Chinese (zh)
Inventor
陈可仁
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JIANGSU ZHONGREN ELECTRICAL CO Ltd
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JIANGSU ZHONGREN ELECTRICAL CO Ltd
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Abstract

The utility model discloses a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function, it is characterized in that, comprise bimetal leaf, support, fork, heat-conducting block, pcb board, contact copper coin, static iron core, alarm lamp and buzzer; Described heat-conducting block, bimetal leaf are fixing described on support by same bolt, described bimetal leaf side is vertically provided with described fork, described fork middle and lower part is located in rotating shaft, be flexible coupling with the described copper coin that contacts bottom described fork, described pcb board is close to below described contact plate, described pcb board is provided with A district, B district and C district successively in the described contact copper coin direction of motion, described A district, power supply, alarm lamp, buzzer are connected with B district wire, and described A district, power supply, static iron core are connected with C district wire.The utility model structure is simple, cost is low, working stability has small amount overload-alarm non-tripping reliably, wholesale overlond trip warning function.

Description

A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function
Technical field
The utility model relates to field of circuit breakers, is specifically related to a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function.
Background technology
Circuit breaker is a kind of circuit protection device, has overload, short circuit and under voltage protection function, has the ability of protection circuit and power supply.Circuit breaker of a great variety, wherein breaker of plastic casing is more conventional, using plastic insulation as shell, is used between insulated conductor and ground metal portion.When electric current exceedes escape setting, breaker of plastic casing can cut off electric current automatically.
In medical treatment, chemical industry, main equipment easily causes circuit breaker to transship when running, when but if main equipment surpasses rated power work, during circuit overloads, circuit breaker disconnects at once, it can cause damage to the electronic instrument of precision, general thermomagnetic circuit breaker is not suitable for this field, and electronic breaker has that cost is high, thermal stability is poor and the easy shortcoming such as aging in hot operation situation.
Utility model content
For solving the problems of the technologies described above; we have proposed a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function; structure is simple, cost is low, working stability has small amount overload-alarm non-tripping reliably; wholesale overlond trip function; the overload-alarm non-tripping of Thermomagnetic type breaker of plastic casing can be realized; effectively thread off when equipment wholesale overload and short circuit, the protection person and property safety.
For achieving the above object, the technical solution of the utility model is as follows:
There is a thermomagnetic circuit breaker for small amount overload-alarm wholesale overlond trip function, comprise bimetal leaf, support, fork, heat-conducting block, pcb board, contact copper coin, static iron core, alarm lamp and buzzer; Described heat-conducting block, bimetal leaf are bolted on described support by same, described bimetal leaf side is vertically provided with described fork, described fork middle and lower part is located in rotating shaft, be flexible coupling with the described copper coin that contacts bottom described fork, described pcb board is close to below described contact copper coin, described pcb board is provided with A district, B district and C district successively in the described contact copper coin direction of motion, described A district, power supply, alarm lamp, buzzer are connected with B district wire, and described A district, power supply, static iron core are connected with C district wire.
Preferably, be provided with dynamic magnetic core above described static iron core, described dynamic magnetic core is provided with draw bar, and described draw bar is located on pivot pin.
Pass through technique scheme; the utility model structure is simple, cost is low, working stability has small amount overload-alarm non-tripping reliably; wholesale overlond trip function; the overload-alarm non-tripping of Thermomagnetic type breaker of plastic casing can be realized; effectively thread off when equipment wholesale overload and short circuit, the protection person and property safety.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation with the thermomagnetic circuit breaker of small amount overload-alarm wholesale overlond trip function disclosed in the utility model embodiment.
Numeral and the corresponding component title represented by letter in figure:
1. bimetal leaf 2. support 3. fork 4. heat-conducting block 5.PCB plate 6. contacts copper coin 7. static iron core 8. alarm lamp 9. buzzer 10. and moves magnetic core 11. draw bar 12. pivot pin.
Embodiment
Below in conjunction with embodiment and embodiment, the utility model is described in further detail.
The utility model provides a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function, its operation principle is: electric current is passed through in contact, produce heat, heat-conducting block by produce heat conduction on bimetal leaf 1, bimetal leaf 1 heated bending, drives fork 3 to rotate around the axis.In normal operation, the thermal Finite that heat-conducting block produces, fork rotational angle is little, and the contact copper coin stroke of its lower end is less, only touches A district, and peripheral buzzer and alarm lamp can not conductings, do not send alarm signal.When small amount overload situations appears in circuit, the heat that heat-conducting block produces increases, and the bending stroke of bimetal leaf increases, fork rotational angle becomes large, contact copper coin travels forward and contacts A district and B district, and peripheral warning circuit is connected, and buzzer and alarm lamp send alarm signal.When circuit wholesale is transshipped, the heat that heat-conducting block produces continues to increase, the bending stroke of bimetal leaf continues to become large, cause contact copper coin conducting A district, B district and C district, buzzer and alarm lamp send alarm signal, simultaneously during wholesale overload, and magnetostatic wicking priming magnetic core, draw bar rotate pin rotate, formed thread off.When line short, the electromagnet snap action of thermomagnetic circuit breaker, interrupting short circuit, in this process, small amount overload-alarm non-tripping, the wholesale overload of thermomagnetic circuit breaker are not only threaded off but also report to the police, by affecting circuit breaker short circuit protection act.
Embodiment 1.
As shown in Figure 1, a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function, comprises bimetal leaf 1, support 2, fork 3, heat-conducting block 4, pcb board 5, contact copper coin 6, static iron core 7, alarm lamp 8 and buzzer 9; Described heat-conducting block, bimetal leaf are bolted on described support by same, described bimetal leaf side is vertically provided with described fork, described fork middle and lower part is located in rotating shaft, be flexible coupling with the described copper coin that contacts bottom described fork, described pcb board is close to below described contact copper coin, described pcb board is provided with A district, B district and C district successively in the described contact copper coin direction of motion, described A district, power supply, alarm lamp, buzzer are connected with B district wire, and described A district, power supply, static iron core are connected with C district wire; Be provided with dynamic magnetic core 10 above described static iron core, described dynamic magnetic core is provided with draw bar 11, and described draw bar is located on pivot pin 12.
Pass through technique scheme; the utility model structure is simple, cost is low, working stability has small amount overload-alarm non-tripping reliably; wholesale overlond trip function; the overload-alarm non-tripping of Thermomagnetic type breaker of plastic casing can be realized; effectively thread off when equipment wholesale overload and short circuit, the protection person and property safety.
Above-described is only a kind of thermomagnetic circuit breaker preferred implementation with small amount overload-alarm wholesale overlond trip function of the present utility model; should be understood that; for the person of ordinary skill of the art; under the prerequisite not departing from the utility model creation design; can also make some distortion and improvement, these all belong to protection range of the present utility model.

Claims (2)

1. there is a thermomagnetic circuit breaker for small amount overload-alarm wholesale overlond trip function, it is characterized in that, comprise bimetal leaf, support, fork, heat-conducting block, pcb board, contact copper coin, static iron core, alarm lamp and buzzer; Described heat-conducting block, bimetal leaf are bolted on described support by same, described bimetal leaf side is vertically provided with described fork, described fork middle and lower part is located in rotating shaft, be flexible coupling with the described copper coin that contacts bottom described fork, described pcb board is close to below described contact copper coin, described pcb board is provided with A district, B district and C district successively in the described contact copper coin direction of motion, described A district, power supply, alarm lamp, buzzer are connected with B district wire, and described A district, power supply, static iron core are connected with C district wire.
2. a kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function according to claim 1, it is characterized in that, be provided with dynamic magnetic core above described static iron core, described dynamic magnetic core is provided with draw bar, and described draw bar is located on pivot pin.
CN201420613445.2U 2014-10-22 2014-10-22 A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function Active CN204271013U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420613445.2U CN204271013U (en) 2014-10-22 2014-10-22 A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420613445.2U CN204271013U (en) 2014-10-22 2014-10-22 A kind of thermomagnetic circuit breaker with small amount overload-alarm wholesale overlond trip function

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CN204271013U true CN204271013U (en) 2015-04-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106206186A (en) * 2016-08-30 2016-12-07 成都乐也科技有限公司 A kind of circuit breaker trip prompting mechanism
CN107039215A (en) * 2017-04-25 2017-08-11 杭州申发电气有限公司 The overload-alarm and fault type and phase judgment instruction device of thermomagnetic circuit breaker
CN107689313A (en) * 2016-08-05 2018-02-13 天津中电华利电器科技集团有限公司 A kind of low-voltage circuit breaker

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107689313A (en) * 2016-08-05 2018-02-13 天津中电华利电器科技集团有限公司 A kind of low-voltage circuit breaker
CN106206186A (en) * 2016-08-30 2016-12-07 成都乐也科技有限公司 A kind of circuit breaker trip prompting mechanism
CN107039215A (en) * 2017-04-25 2017-08-11 杭州申发电气有限公司 The overload-alarm and fault type and phase judgment instruction device of thermomagnetic circuit breaker

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