CN202513078U - Switch with temperature control function and overheat protection function - Google Patents
Switch with temperature control function and overheat protection function Download PDFInfo
- Publication number
- CN202513078U CN202513078U CN2012201344794U CN201220134479U CN202513078U CN 202513078 U CN202513078 U CN 202513078U CN 2012201344794 U CN2012201344794 U CN 2012201344794U CN 201220134479 U CN201220134479 U CN 201220134479U CN 202513078 U CN202513078 U CN 202513078U
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- Prior art keywords
- temperature
- temperature control
- spring
- switch
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Abstract
The utility model discloses a switch with a temperature control functional and an overheat protection function. The switch comprises a cylindrical housing, wherein a separating plate is arranged in the middle of the housing, and separates the housing into two chambers; and a temperature control subassembly and an overheat protecting subassembly are arranged in two hollow chambers respectively. The switch integrates two functions of a temperature controller and a fuse, and overcomes the shortcoming that current household appliance adopts two individual devices for achieving temperature control and temperature protection, and effectively reduces the cost, so that the production is safe and reliable; and a memory alloy is adopted for controlling temperature, which shows the temperature control precision and wearable performance superior to those of current double-metal temperature control program.
Description
Technical field
The utility model relates to the electronic devices and components field, and specifically a kind of temperature causes the switch of contact closure or openness.
Background technology
At present, the control of the temperature of household electric appliances is two kinds of different electronic components with Temperature protection, all is to use the independent device of two covers to accomplish; Thermostat has various ways, and wherein modal is double-metal sheet type, and volume is big; Complex structure; Quality is unstable, and cost is high, and particularly small household appliances receive volume restrictions and use very inconvenience.
The utility model content
The purpose of the utility model provides a kind of switch with temperature control and overheat protective function, and thermostat and fuse dual-use function are arranged.Volume is little, and is simple in structure, and temperature is adjustable, and temperature control is accurate, safe and reliable.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of switch with temperature control and overheat protective function; Comprise cylindrical case; Be provided with dividing plate in the middle of the shell, shell is divided into two cavitys, be respectively equipped with temperature-controlling module and overtemperature protection assembly in two cavitys; Thermostat and fuse dual-use function are arranged, and the preset temperature of temperature-controlling module is lower than the break-off signal of overtemperature protection assembly.
The thermostat function: utilization memory metal spring has shape memory characteristic, and stressed at low temperatures back produces plastic deformation, in case after being heated to phase transition temperature point, produce deformation, returns to the high temperature shape.Use trying hard to recommend that its temperature deformation produces to start the contact, deenergization, when temperature drops to below the transformation temperature, the plastic deformation of memory metal spring form generation, at this moment the dynamic and static closing of contact reaches temperature control purpose under acting force of the spring.
Insurance function: when temperature occurs unusually, and reach the fusing-off temperature of setting, fuse-link melts fast, and the star contact has lost the fuse-link support, and circuit is broken off, when playing a protective role when unusual appears in temperature.
The beneficial effect of the utility model is:
The utlity model has temperature control and two kinds of functions of temperature protection, overcome the deficiency of existing household electrical appliances, can reduce cost effectively, make product more safe and reliable for realizing that temperature control and temperature protection adopt two cover self-contained units to accomplish.In the utility model, adopt memory metal to carry out temperature control, its temperature control precision and durability degree all are superior to existing bimetallic temperature control scheme.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation.
Fig. 1 is the cutaway view under the utility model normally state;
Fig. 2 is the cutaway view after the action of the utility model memory metal spring;
Fig. 3 is the cutaway view after the utility model temperature sensor fusing.
Among the figure: 1, lead-in wire A 2, insulating ceramics A 3, disjunction spring 4, movable contact spring 5, pad 6, barrel-shaped spring 7, pad 8, temperature sensor 9, shell 10, back-moving spring 11, moving contact 12, memory metal spring 13, insulating ceramics B 14, lead-in wire B
Embodiment
As shown in Figure 1, a kind of switch with temperature control and overheat protective function comprises cylindrical case 9, is provided with dividing plate in the middle of the shell 9, and shell is divided into two cavitys, is respectively equipped with temperature-controlling module and overtemperature protection assembly in two cavitys.
Said temperature-controlling module comprises back-moving spring 10, moving contact 11, memory metal spring 12, insulating ceramics B13 and lead-in wire B14; Moving contact 11 places in the cavity; Be provided with back-moving spring 10 between moving contact 11 and the dividing plate; Lead-in wire B 14 is fixed in the cavity afterbody through insulating ceramics B13, between lead-in wire B 14 and the moving contact 11 memory metal spring 12 is set.
Said overtemperature protection assembly comprises temperature sensor 8, movable contact spring 4 and lead-in wire A1; Temperature sensor 8 places in the cavity with movable contact spring 4; Be provided with barrel-shaped spring 6 between temperature sensor 8 and the movable contact spring 4, lead-in wire A1 is fixed on the cavity afterbody through insulating ceramics A 2, is provided with disjunction spring 3 between lead-in wire A1 and the movable contact spring 4.
Said shell 9 is a metal material, and the edge of movable contact spring 4 contacts with shell 9 inwalls.
As preferably, said disjunction spring 3 two ends are provided with pad 5 and pad 7.
Under the normal temperature state, moving contact 11 is closure state with fixed contact on the lead-in wire B14, electric current through lead-in wire A 1 to movable contact spring 4, shell 9, back-moving spring 10, moving contact 11 to lead-in wire B 14.Return to the high temperature shape when temperature reaches control temperature spot (more than the transformation temperature) memory metal spring, use trying hard to recommend of its temperature deformation generation to start contact 11, deenergization.Each unit status after the action is as shown in Figure 2.When temperature drops to below the transformation temperature, the plastic deformation of memory metal spring form generation, at this moment moving contact is closed under the active force of back-moving spring 10, thereby reaches temperature control purpose.
Temperature control device occur unusual after, temperature continues to rise and reaches under the situation of fusion temperature of temperature sensor 8, temperature sensor 8 is fusing rapidly under the promotion of barrel-shaped spring 6, barrel-shaped spring 6 is expansion thereupon also.When the power of barrel-shaped spring 6 less than the power of disjunction spring 3 time, disjunction spring 3 is pushed movable contact spring 4 rapidly open, make its with lead-in wire A 1 on the separating of fixed contact, deenergization realizes that unusual safeties appear in temperature.Each unit status such as Fig. 3 after the action.
More than the disclosed specific embodiment that is merely this patent, but this patent is not limited thereto, for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model principle, the distortion of making should be regarded as belonging to the utility model protection range.
Claims (5)
1. have the switch of temperature control and overheat protective function, it is characterized in that: comprise cylindrical case (9), be provided with dividing plate in the middle of the shell (9), shell is divided into two cavitys, be respectively equipped with temperature-controlling module and overtemperature protection assembly in two cavitys.
2. the switch with temperature control and overheat protective function according to claim 1; It is characterized in that: said temperature-controlling module comprises back-moving spring (10), moving contact (11), memory metal spring (12), insulating ceramics B (13) and lead-in wire B (14); Moving contact (11) places in the cavity; Be provided with back-moving spring (10) between moving contact (11) and the dividing plate; Lead-in wire B (14) is fixed in the cavity afterbody through insulating ceramics B (13), between lead-in wire B (14) and the moving contact (11) memory metal spring (12) is set.
3. the switch with temperature control and overheat protective function according to claim 1; It is characterized in that: said overtemperature protection assembly comprises temperature sensor (8), movable contact spring (4) and lead-in wire A (1); Temperature sensor (8) and movable contact spring (4) place in the cavity; Be provided with barrel-shaped spring (6) between temperature sensor (8) and the movable contact spring (4), lead-in wire A (1) is fixed on the cavity afterbody through insulating ceramics A (2), is provided with disjunction spring (3) between lead-in wire A (1) and the movable contact spring (4).
4. the switch with temperature control and overheat protective function according to claim 1, it is characterized in that: said shell (9) is a metal material, and the edge of movable contact spring (4) contacts with shell (9) inwall.
5. the switch with temperature control and overheat protective function according to claim 3, it is characterized in that: said disjunction spring (3) two ends are provided with pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201344794U CN202513078U (en) | 2012-04-01 | 2012-04-01 | Switch with temperature control function and overheat protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201344794U CN202513078U (en) | 2012-04-01 | 2012-04-01 | Switch with temperature control function and overheat protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202513078U true CN202513078U (en) | 2012-10-31 |
Family
ID=47065542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201344794U Expired - Fee Related CN202513078U (en) | 2012-04-01 | 2012-04-01 | Switch with temperature control function and overheat protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202513078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208398A (en) * | 2012-04-01 | 2013-07-17 | 任运涛 | Switch with temperature control and overheating protection functions |
| CN103996582A (en) * | 2013-03-29 | 2014-08-20 | 厦门赛尔特电子有限公司 | Thermal fuse provided with two pawl reeds |
-
2012
- 2012-04-01 CN CN2012201344794U patent/CN202513078U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103208398A (en) * | 2012-04-01 | 2013-07-17 | 任运涛 | Switch with temperature control and overheating protection functions |
| CN103208398B (en) * | 2012-04-01 | 2016-02-17 | 任运涛 | There is the switch of temperature control and overheat protective function |
| CN103996582A (en) * | 2013-03-29 | 2014-08-20 | 厦门赛尔特电子有限公司 | Thermal fuse provided with two pawl reeds |
| WO2014154169A1 (en) * | 2013-03-29 | 2014-10-02 | 厦门赛尔特电子有限公司 | Thermal fuse having dual elastic clamps |
| CN103996582B (en) * | 2013-03-29 | 2016-09-14 | 厦门赛尔特电子有限公司 | A kind of Thermal Cutoffs with double pawl spring sheets |
| US10224167B2 (en) | 2013-03-29 | 2019-03-05 | Xiamen Set Electronics Co., Ltd | Thermal fuse |
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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: 20121031 Termination date: 20160401 |