CN203351504U - Self-recovery temperature protector - Google Patents

Self-recovery temperature protector Download PDF

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Publication number
CN203351504U
CN203351504U CN 201320433371 CN201320433371U CN203351504U CN 203351504 U CN203351504 U CN 203351504U CN 201320433371 CN201320433371 CN 201320433371 CN 201320433371 U CN201320433371 U CN 201320433371U CN 203351504 U CN203351504 U CN 203351504U
Authority
CN
China
Prior art keywords
moving contact
housing
insulating base
contact
self
Prior art date
Application number
CN 201320433371
Other languages
Chinese (zh)
Inventor
胡群雄
Original Assignee
旭程电子(深圳)有限公司
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 旭程电子(深圳)有限公司 filed Critical 旭程电子(深圳)有限公司
Priority to CN 201320433371 priority Critical patent/CN203351504U/en
Application granted granted Critical
Publication of CN203351504U publication Critical patent/CN203351504U/en

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Abstract

The utility model discloses a self-recovery temperature protector, comprising a housing, an elastic element, a moving contact, a static contact, a memory spring prepared from memory alloy material and an insulation seat. A slideway is arranged in the housing, the insulation seat is arranged at one end in the slideway, and the static contact is arranged at the inner side end of the insulation seat and is electrically connected with the first lead penetrating the housing and the insulation seat; the elastic element is arranged at the other end in the slideway, the inner side end of the elastic element performs effect on the moving contact and enables the moving contact to be supported against to the static contact, and the moving contact is electrically connected with a second lead penetrating the housing; and two ends of the memory spring are respectively supported against the end surfaces of the moving contact and the insulation seat. According to the self-recovery temperature protector, the structure is simple, manufacture is convenient, when the memory spring senses high temperature and memories shape, the memory spring is expanded to enable the moving contact to be separated from the static contact, when the temperature recovers to the normal temperature, the moving contact is affected by the elastic element and automatically recovers to the state in contact with the static contact, and the cycle that a line is cut off at high temperature and automatically recovers at normal temperature is achieved.

Description

The self-recovering type temperature insurance device
[technical field]
The utility model relates to a kind of safeties for the electrical equipment overcurrent protection, particularly a kind of self-recovering type temperature insurance device.
[background technology]
The insurance means that have now for the overcurrent protection of electrical equipment and electronic equipment normally adopt fusible link, and when the electric current of the fusible link of flowing through is excessive, electric current raises rapidly its temperature, the time fusible link fuse, thereby cut off circuit, electrical equipment is protected; But fusible link belongs to disposable use element, can not automatically reset after fusing, after use once, will again change, increase the maintenance cost of product, the useful life of having reduced product, and the fusible link after changing has increased electronic waste, not environmental protection.
[summary of the invention]
The purpose of this utility model is to overcome deficiency of the prior art, and a kind of reusable self-recovering type temperature insurance device is provided.
The purpose of this utility model is achieved in that it comprises housing, elastomeric element, moving contact, fixed contact, the memory spring of being made by memory alloy material, insulating base, there is a slideway in described housing, described insulating base is arranged on the end in slideway, described fixed contact is arranged on the medial extremity of insulating base, and is electrically connected to the first wire in penetrating housing and insulating base; Described elastomeric element is arranged on the other end in slideway, and its medial extremity acts on moving contact, and described moving contact is conflicted on fixed contact, and described moving contact is electrically connected to the second wire that penetrates housing; The two ends of described memory spring are connected to respectively on the end face of moving contact and insulating base.
In said structure, described insulating base inner face inwardly convexes with a round platform, and described fixed contact is arranged on the end face of this round platform, and the medial extremity of described memory spring butt insulating base also is set on round platform.
In said structure, described elastomeric element is metal compression spring, and described moving contact is connected with the second wire by compression spring.
In said structure, the end face that described moving contact contacts with compression spring convexes with a fixture block, and described fixture block snaps in this compression spring.
Described insulating base adopts ceramic material to make, and its outer end protrudes from housing, between outer end and housing, adopts epoxy sealing to be connected.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, easy to make, by the memory spring that compression spring and is made by memory alloy material is set in the slideway of housing, make moving contact between compression spring and memory spring, and moved left and right in slideway by the active force of two springs; Under normal temperature, the be stressed elastic force of spring of moving contact is conflicted on fixed contact, when electric current excessive, when in slideway, temperature raises, thereby memory spring is expanded by the effect shape memory of high temperature, promote moving contact and compressed to elastomeric element, moving contact and fixed contact are separated, cause the first wire and the second wire in off-state, reach the overcurrent protection to electrical appliance; When in slideway, temperature retrieval is to normal temperature, the be stressed effect of spring of moving contact automatically restores to the state contacted with fixed contact, disconnects the iterative cycles automatically recovered during normal temperature while realizing circuit high temperature.
[accompanying drawing explanation]
Fig. 1 is circuit connection diagram under the utility model normal temperature;
Fig. 2 is that the utility model circuit when high temperature disconnects schematic diagram.
[embodiment]
Below in conjunction with the drawings and the specific embodiments, the utility model is further described:
As depicted in figs. 1 and 2, self-recovering type temperature insurance device of the present utility model, comprise housing 1, elastomeric element 2, moving contact 3, fixed contact 4, the memory spring 5 of being made by memory alloy material, insulating base 6, there is a slideway 11 in described housing 1, the cross section of described slideway 11 is circular hole, and described elastomeric element 2, moving contact 3, fixed contact 4, memory spring 5 and insulating base 6 all are arranged in slideway; Described insulating base 6 is arranged on the end in slideway 11, and described fixed contact 4 is fixedly installed on the medial extremity of insulating base 6, and is electrically connected to the first wire 8 in penetrating housing 1 and insulating base 6; Described elastomeric element 2 is arranged on the other end in slideway 11, and its medial extremity acts on moving contact 3, and described moving contact 3 is conflicted on fixed contact 4, and described moving contact 3 is electrically connected to the second wire 9 that penetrates housing 1; The two ends of described memory spring 5 are connected to respectively on the end face of moving contact 3 and insulating base 6.
Shown in Fig. 1, temperature in housing is at normal temperatures the time, described moving contact 3 is moved to and the contacted position of fixed contact 4 by the active force of elastomeric element 2, and now the first wire 8 and the second wire 9 are in on-state, and plastic deformation occurs the memory spring 5 between moving contact 3 and insulating base 6.Shown in Fig. 2, when the electric current of flow through moving contact 3 and fixed contact 4 is excessive, electric current raises rapidly the temperature in slideway 11, thereby described memory spring 5 is expanded by the effect shape memory of high temperature, promoting moving contact 3 is compressed to elastomeric element 2, moving contact 3 and fixed contact 4 are separated, cause the first wire 8 and the second wire 9 in off-state.When the interior temperature of passage 11 of housing 1 returns to normal temperature, moving contact 3 is subject to the effect of elastomeric element 2 to automatically restore to the state contacted with fixed contact 4, disconnects the iterative cycles automatically recovered during normal temperature while realizing circuit high temperature.
Further, described insulating base 6 inner faces inwardly convex with a round platform 61, described fixed contact 4 is fixedly installed on the end face of this round platform 61, this medial extremity of described memory spring 5 butt insulating bases 6 also is set on round platform 61, increase the length of the memory spring 5 between insulating base 6 and moving contact 3 with this, motive force while improving memory spring 5 high temperature, while guaranteeing high temperature separate moving contact 3 and fixed contact 4.Described elastomeric element 2 is metal compression spring, and described moving contact 3 is electrically connected to the second wire 9 by compression spring; The end face that described moving contact 3 contacts with compression spring convexes with a fixture block 31, and described fixture block 31 snaps in an end of this compression spring, and moving contact 3 is fixed on compression spring; Described elastomeric element 2 can also adopt non-metal elastomers, and now moving contact 3 directly is electrically connected to the second wire 9; Described insulating base 6 adopts ceramic material to make, and its outer end 62 protrudes from outside housing 1, between outer end 62 and housing 1, adopts epoxy resin 7 to be tightly connected, and makes the interior slideway 11 of housing in sealing state.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also carry out suitable change and modification to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, to modifications and changes more of the present utility model, also should fall in the protection range of claim of the present utility model.In addition, although used some specific terms in this specification, these terms just for convenience of description, do not form any restriction to the utility model.

Claims (5)

1. a self-recovering type temperature insurance device, it is characterized in that: comprise housing, elastomeric element, moving contact, fixed contact, the memory spring of being made by memory alloy material, insulating base, there is a slideway in described housing, described insulating base is arranged on the end in slideway, described fixed contact is arranged on the medial extremity of insulating base, and is electrically connected to the first wire in penetrating housing and insulating base; Described elastomeric element is arranged on the other end in slideway, and its medial extremity acts on moving contact, and described moving contact is conflicted on fixed contact, and described moving contact is electrically connected to the second wire that penetrates housing; The two ends of described memory spring are connected to respectively on the end face of moving contact and insulating base.
2. self-recovering type temperature insurance device according to claim 1, it is characterized in that: described insulating base inner face inwardly convexes with a round platform, described fixed contact is arranged on the end face of this round platform, and the medial extremity of described memory spring butt insulating base also is set on round platform.
3. self-recovering type temperature insurance device according to claim 1 and 2, it is characterized in that: described elastomeric element is metal compression spring, described moving contact is connected with the second wire by compression spring.
4. self-recovering type temperature insurance device according to claim 3, it is characterized in that: the end face that described moving contact contacts with compression spring convexes with a fixture block, and described fixture block snaps in this compression spring.
5. self-recovering type temperature insurance device according to claim 1 is characterized in that: described insulating base adopts ceramic material to make, and its outer end protrudes from housing, between outer end and housing, adopts epoxy sealing to be connected.
CN 201320433371 2013-07-19 2013-07-19 Self-recovery temperature protector CN203351504U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320433371 CN203351504U (en) 2013-07-19 2013-07-19 Self-recovery temperature protector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320433371 CN203351504U (en) 2013-07-19 2013-07-19 Self-recovery temperature protector

Publications (1)

Publication Number Publication Date
CN203351504U true CN203351504U (en) 2013-12-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320433371 CN203351504U (en) 2013-07-19 2013-07-19 Self-recovery temperature protector

Country Status (1)

Country Link
CN (1) CN203351504U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810529A (en) * 2016-05-18 2016-07-27 朱小菊 Recoverable fuse
CN107240795A (en) * 2017-05-09 2017-10-10 苏州木星电子有限公司 A kind of NEW TYPE OF COMPOSITE terminal
CN107394723A (en) * 2017-07-03 2017-11-24 杭州耐立电气有限公司 A kind of profile material assembling formula enclosed busbar crane span structure
CN110085490A (en) * 2019-04-30 2019-08-02 曹欢 A kind of durable recovery fuse
CN110364402A (en) * 2019-08-15 2019-10-22 刘晓丹 A kind of quick response formula DC fuse

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105810529A (en) * 2016-05-18 2016-07-27 朱小菊 Recoverable fuse
CN105810529B (en) * 2016-05-18 2017-12-26 新昌县兴旺轴承有限公司 Fuse can be recovered
CN107240795A (en) * 2017-05-09 2017-10-10 苏州木星电子有限公司 A kind of NEW TYPE OF COMPOSITE terminal
CN107394723A (en) * 2017-07-03 2017-11-24 杭州耐立电气有限公司 A kind of profile material assembling formula enclosed busbar crane span structure
CN107394723B (en) * 2017-07-03 2019-02-12 杭州耐立电气有限公司 A kind of profile material assembling formula enclosed busbar gantry
CN110085490A (en) * 2019-04-30 2019-08-02 曹欢 A kind of durable recovery fuse
CN110364402A (en) * 2019-08-15 2019-10-22 刘晓丹 A kind of quick response formula DC fuse

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