CN202513077U - Temperature protector with repeated memory capability - Google Patents
Temperature protector with repeated memory capability Download PDFInfo
- Publication number
- CN202513077U CN202513077U CN2012200055208U CN201220005520U CN202513077U CN 202513077 U CN202513077 U CN 202513077U CN 2012200055208 U CN2012200055208 U CN 2012200055208U CN 201220005520 U CN201220005520 U CN 201220005520U CN 202513077 U CN202513077 U CN 202513077U
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- Prior art keywords
- contact
- power supply
- housing
- memory alloy
- memory
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- Expired - Fee Related
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Abstract
The utility model discloses a temperature protector with a repeated memory capability. The temperature protector comprises a housing, memory alloy springs, a movable contact block, thrust springs and a lead. The movable contact block arranged inside the housing is an integrated cylindrical object formed by a backseat and a contact; and a limit convex edge is arranged between the backseat and the contact. The memory alloy springs that are sleeved at the contact rod portion have forward-backward flexible spaces; one encircling end portions of the alloy springs are close to the convex edge and the other encircling end portions thereof are close to a side end surface of a contact cap inside the housing. The thrust springs are sleeved on the backseat; and one encircling end portions of the thrust springs are close to the convex edge and the other encircling end portions of are close to the inner side end of the housing. A power supply lead of a power supply input terminal penetrates the housing and is contacted with a contact point of the contact; and a power supply lead of a power supply output terminal is connected with a power supply of electrical equipment. According to the temperature protector provided by the utility model, the thermal transmission is fast; immediate memory and connection can be realized and the repeated memory durable number can reach 50 thousand; and the protector can be used permanently only with assembling once. And moreover, the protector has advantages of simple structure, low manufacturing cost and small product volume; and there is no melted material when the power supply is cut off.
Description
Technical field
The utility model relates to the safeties of a kind of electrical equipment and electronic equipment overcurrent protection, short circuit, particularly a kind of protector of memory temperature repeatedly.
Background technology
The traditional insurance silk is that self fuses under specific temperature, and its primary structure is made up of Polymer material and electric terminal, spring etc., after once moving, is discarding.Present international electronic devices and components Thermal Cutoffs mainly contains following dual mode: 1, disposable Thermal Cutoffs: when ambient temperature surpasses operating temperature; Importing heat into through the lead-in wire metal shell is fused into the temperature-sensitive frit aqueous; This moment, spring ejected elongation with the movable electrode release, thereby cut off circuit.This fuse is just scrapped after the protection action is carried out, and fusing slowly makes the protection action lag behind.2, from the recovery temperature fuse: be to be processed into through special process by high-tech polymer resin and conductive nano crystal grain, under the normal condition, the conductive nano crystal forms chain conductive path, fuse operate as normal with the resin-based link; When circuit was short-circuited or transships, the big electric current of the fuse of flowing through made its collection temperature rise, when reaching Curie temperature; Its density of states reduces rapidly; Phase transformation increases, and inner electrically conductive links is change of snowslide attitude or fracture, and fuse is phase step type and adjourns high-impedance state; Electric current is by rapid pinch off, thereby circuit is limited and protects.The structure of this fuse is comparatively complicated, can not break off rapidly or connect, and when void is disconnected, has a resistance and can cause damage to electrical equipment, recovers number of times certainly and has only 40～50 times.
The utility model content
The purpose of the utility model is to overcome the defective that prior art exists, and provides a kind of simple in structure, and low cost of manufacture is connected and broken off rapidly, remembers the many protectors of memory temperature repeatedly of durability times repeatedly.
What the utility model push-and-pull contact block spring adopted is that memory alloy material is processed repeatedly; When meeting heavy current, high temperature; Memory alloy spring shrinks and promotes contact block contact deenergization repeatedly; When electric current, temperature refresh memory alloy spring memory normality, the memory alloy spring refresh memory is stretched spring pulling contact block and is recovered power supply.The purpose of the utility model is to adopt following technical scheme to realize: a kind of protector of memory temperature repeatedly; The memory alloy spring, movable contact block, thrust spring and the lead-in wire that comprise housing, processed by memory alloy material are repeatedly formed; It is characterized in that: the movable contact block that is positioned at housing is the column that is made up of one back seat and contact, has spacing convex edge between back seat and the contact; The memory alloy spring that is enclosed within contact stem portion has elastic space, and of memory alloy spring relies on the convex edge around the end, and another relies on the contact cap side end face in the housing around the end; Thrust spring is sleeved on the back seat, and one of thrust spring relies on the convex edge around the end, and another relies on the housing medial extremity around the end; The power supply lead wire of current input terminal penetrates the contact cap and contacts with the contact of stylus, and the power supply lead wire of current output terminal is connected with appliances power source.
The side of said contact cover has the cavity that the contact that holds the contact tip and power supply lead wire end in contact are broken off, the relying on contact around the end and overlap the side end face of memory alloy spring.The utlity model has following distinguishing feature:
What 1, the utility model push-and-pull contact block spring adopted is that memory alloy material is processed repeatedly; When meeting heavy current, high temperature, memory alloy spring shrinks and promotes the electrode deenergization repeatedly, and the hotness transmission rapidly; Moment memory, moment break off, and automatically reset and effectively protect various electric equipment products; The memory temperature of this product memory alloy spring is 75 ℃～170 ℃, and remembering durability times repeatedly is more than 50,000 times, and this product can once assemble permanent use;
2, simple in structure, small product size is little, simple installation; During welding because the erosion of electric current and temperature; This moment, the fuse electrode was in off-state, and when temperature, electric current refresh memory alloy spring memory normality, electrode recovers merging phase (not needing any auxiliary original paper to cooperate);
Do not have any melted material when 3, cutting off the electricity supply, cut off the electricity supply, recover rapidly power supply rapidly and supply with;
4, operation principle is simple, and cut-out, merging power environment can bear environment by memory alloy spring according to product and full powers control; Type of action: temperature and electric current (℃-A) two-way control;
5, low cost of manufacture is manufactured easily, can replace the popular disposable Thermal Cutoffs of present international electron trade fully and from the recovery temperature fuse.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Shown in accompanying drawing; Memory alloy spring, movable contact block, thrust spring and lead-in wire that the utility model is mainly processed by housing, by memory alloy material are repeatedly formed; The movable contact block 3 that is located in the housing 1 is the concentric columns that are made up of one back seat 3-1 and contact 3-2; Be provided with spacing convex edge 3-3 between back seat and the contact, to constitute spacing to the memory alloy spring 2 on two sides, convex edge and thrust spring 4; The memory alloy spring repeatedly 2 that is enclosed within contact stem portion has elastic space, and of this memory alloy spring 2 relies on convex edge 3-3 around the end, and another relies on contact cap 7 side end faces in the housing around the end; The side of contact cap 7 has and holds the cavity that contact tip and power supply lead wire end in contact are broken off, repeatedly memory alloy spring 2 around diameter greater than contact cap 7 cavity diameters, so memory alloy spring 2 around the spacing side end face that relies on contact cap 7, end.Thrust spring 4 is sleeved on the back seat 3-1, and of thrust spring 4 relies on convex edge 3-3 around the end, and another relies on housing 1 medial extremity around the end; It is that contact is connected with the most advanced and sophisticated contact of contact 3-2 that the power supply lead wire 6 of current input terminal penetrates contact cap 7, and the power supply lead wire 5 of current output terminal is connected with appliances power source.
When meeting heavy current, high temperature, memory alloy wire expands alloy spring 2 is shunk, and promotes the contact deenergization; When electric current, temperature refresh memory alloy spring memory normality, memory alloy spring 2 refresh memories, and stretch spring pulling contact and recover power supply.Memorial alloy fuse product has two kinds of specifications repeatedly: a kind of is diameter 4mm, is applicable to refrigerator, high temperature such as microwave oven, electric frying pan, high pressure, high electric current (alternating current) household electrical appliance; Another kind of product diameter is 2mm, is applicable to dc electric apparatus such as battery of mobile phone, cells in notebook computer, LED illumination, charger.
Claims (2)
1. memory temperature protector repeatedly; The memory alloy spring, movable contact block, thrust spring and the lead-in wire that comprise housing, processed by memory alloy material are repeatedly formed; It is characterized in that: the movable contact block that is positioned at housing is the column that is made up of one back seat and contact, has spacing convex edge between back seat and the contact; The memory alloy spring that is enclosed within contact stem portion has elastic space, and of memory alloy spring relies on the convex edge around the end, and another relies on the contact cap side end face in the housing around the end; Thrust spring is sleeved on the back seat, and one of thrust spring relies on the convex edge around the end, and another relies on the housing medial extremity around the end; The power supply lead wire of current input terminal penetrates the contact cap and contacts with the contact of stylus, and the power supply lead wire of current output terminal is connected with appliances power source.
2. the protector of memory temperature repeatedly according to claim 1 is characterized in that: the side of said contact cover has the cavity that the contact that holds the contact tip and power supply lead wire end in contact are broken off, the relying on contact around the end and overlap the side end face of memory alloy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200055208U CN202513077U (en) | 2012-01-06 | 2012-01-06 | Temperature protector with repeated memory capability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200055208U CN202513077U (en) | 2012-01-06 | 2012-01-06 | Temperature protector with repeated memory capability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513077U true CN202513077U (en) | 2012-10-31 |
Family
ID=47065541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200055208U Expired - Fee Related CN202513077U (en) | 2012-01-06 | 2012-01-06 | Temperature protector with repeated memory capability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513077U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078279A (en) * | 2013-03-27 | 2014-10-01 | 比亚迪股份有限公司 | Circuit protector |
| CN104797018A (en) * | 2015-01-27 | 2015-07-22 | 上海华族实业有限公司 | Electric heating tube provided with embedded temperature protection device |
| CN109959050A (en) * | 2017-12-22 | 2019-07-02 | 北京绿能嘉业新能源有限公司 | A kind of overheating protection electric heating hole plate |
| CN113192795A (en) * | 2021-04-07 | 2021-07-30 | 成都理工大学 | Multi-temperature step control device and method based on shape memory alloy |
-
2012
- 2012-01-06 CN CN2012200055208U patent/CN202513077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078279A (en) * | 2013-03-27 | 2014-10-01 | 比亚迪股份有限公司 | Circuit protector |
| CN104797018A (en) * | 2015-01-27 | 2015-07-22 | 上海华族实业有限公司 | Electric heating tube provided with embedded temperature protection device |
| CN109959050A (en) * | 2017-12-22 | 2019-07-02 | 北京绿能嘉业新能源有限公司 | A kind of overheating protection electric heating hole plate |
| CN113192795A (en) * | 2021-04-07 | 2021-07-30 | 成都理工大学 | Multi-temperature step control device and method based on shape memory alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140106 |