CN202003907U - Resettable temperature controller - Google Patents
Resettable temperature controller Download PDFInfo
- Publication number
- CN202003907U CN202003907U CN2011200472362U CN201120047236U CN202003907U CN 202003907 U CN202003907 U CN 202003907U CN 2011200472362 U CN2011200472362 U CN 2011200472362U CN 201120047236 U CN201120047236 U CN 201120047236U CN 202003907 U CN202003907 U CN 202003907U
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- temperature
- spring plate
- magnet
- spring
- sensitive
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Abstract
The utility model discloses a resettable temperature controller. The resettable temperature controller comprises a casing, a spring and a spring plate component, wherein both the spring and the spring plate component are arranged in the casing; the spring plate component consists of a movable spring plate and a fixed spring plate, and a movable contact of the movable spring plate corresponds to a fixed contact of the fixed spring plate; and the casing comprises an upper cavity and a lower cavity, a magnet body connected with the movable spring plate is arranged in the upper cavity of the casing, a temperature-sensitive magnet body is further arranged at the top of the upper cavity, and the spring is arranged between the magnet body and the temperature-sensitive magnet body. The resettable temperature controller can effectively avoid value variation caused by deformation due to repeated action of a metal sheet, is stable and fatigue-resistant, and has a long service life.
Description
Technical field
The utility model relates to a kind of thermostat, especially a kind of thermostat that resets.
Background technology
The thermostat that tradition is used for household appliances such as electric rice cooker, electric pressure cooker etc. is a bimetal strip thermostat.The main structure composition of bimetal strip thermostat includes cover plate, shell fragment assembly, lug plate and bimetal leaf etc., and the use of this thermostat is according to object rising-heat contracting-cold principle.Rising-heat contracting-cold is the general character of object, but the degree varies sample of its rising-heat contracting-cold of different objects.The two sides of bimetal leaf is the conductor of different material, makes the bimetal leaf bending owing to expansion-contraction degree is different under the temperature that changes, and runs into the contact or the switch of setting, and the circuit (protection) of setting is started working.Because successively repeatedly in the use of sheet metal, tired easily, the life-span is short, use a period of time after, the easy deformation variate; And unstable, under external force, the easy deformation variate; The while complex structure, required precision height, complex process, the low and cost height of production efficiency.
The utility model content
The purpose of this utility model provides a kind ofly effectively to be avoided sheet metal perseveration distortion and the variate problem occurs, stable, endurance, long resetted thermostat of life-span.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of thermostat that resets, comprise housing, spring, shell fragment assembly, spring and shell fragment assembly are located in the housing, this shell fragment assembly is made up of spring plate and quiet shell fragment, and the moving contact of spring plate is corresponding with the fixed contact of quiet shell fragment; Described housing is divided into epicoele and cavity of resorption, is provided with the magnet that is connected with spring plate in the epicoele of housing, also is provided with the temperature-sensitive magnet at the top of epicoele, and spring is located between magnet and the temperature-sensitive magnet.
Be connected by connecting rod between described magnet and the spring plate.
Described magnet is a permanent magnet.
The utility model is divided into epicoele and cavity of resorption by housing after adopting said structure, is provided with the magnet that is connected with spring plate in the epicoele of housing, also is provided with the temperature-sensitive magnet at the top of epicoele, and spring is located between magnet and the temperature-sensitive magnet; When the temperature t of temperature-sensitive magnet during less than the Curie temperature T of temperature-sensitive magnet, the temperature-sensitive magnet has magnetic force, and f inhales ﹥ G+F bullet, and permanent magnet is by the temperature-sensitive magnet absorption, and permanent magnet drives moving contact and fixed contact closure, circuit unlatching (connection); When the temperature t of temperature-sensitive magnet during more than or equal to the Curie temperature T of temperature-sensitive magnet, the temperature-sensitive magnet loses magnetic force, and f inhales=0, the temperature-sensitive magnet is under the acting in conjunction of gravity G own and spring force F bullet, permanent magnet moves downward, and permanent magnet drives moving contact to be separated with fixed contact, and circuit is closed; Along with the temperature t of temperature-sensitive magnet reduces, when temperature is reduced to Curie temperature T less than the temperature-sensitive magnet, repeat to adsorb closed action, realize circuit reset; So the spring plate of thermostat of the present utility model is controlled its action by the temperature-sensitive magnet, solved traditional bimetal strip thermostat and moved by rising-heat contracting-cold, tired easily repeatedly successively, the life-span is short, the problem of easy deformation variate.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model permanent magnet force analysis figure.
Among the figure: 1 housing, 11 epicoeles, 12 cavity of resorptions, 2 springs, 3 shell fragment assemblies, 31 spring plates, 32 quiet shell fragments, 4 magnets, 5 temperature-sensitive magnets, 6 connecting rods.
Embodiment
Shown in Figure 1, the thermostat that resets of the present utility model, comprise housing 1, spring 2, shell fragment assembly 3, spring 2 and shell fragment assembly 3 are located in the housing 1, this shell fragment assembly 3 is made up of spring plate 31 and quiet shell fragment 32, and the moving contact of spring plate 31 is corresponding with the fixed contact of quiet shell fragment 32, and spring plate 31 is connected with two electrodes respectively with quiet shell fragment 32; Described housing 1 is divided into epicoele 11 and cavity of resorption 12, is provided with the magnet 4 that is connected with spring plate 31 in the epicoele 11 of housing 1, also is provided with temperature-sensitive magnet 5 at the top of epicoele 11, and spring 2 is located at 5 of magnet 4 and temperature-sensitive magnets.In the present embodiment, magnet 4 is a permanent magnet, is connected by connecting rod 6 between magnet 4 and the spring plate 31.
Shown in Figure 2, be permanent magnet 4 force analysis figure; Narrate the operation principle of the utility model thermostat below in conjunction with Fig. 2: when the temperature t of temperature-sensitive magnet 5 during less than the Curie temperature T of temperature-sensitive magnet, temperature-sensitive magnet 5 has magnetic force, f inhales ﹥ G+F bullet, permanent magnet 4 is by 5 absorption of temperature-sensitive magnet, permanent magnet 4 drives moving contact and fixed contact closure, and circuit is opened (connection); When the temperature t of temperature-sensitive magnet 5 during more than or equal to the Curie temperature T of temperature-sensitive magnet 5, temperature-sensitive magnet 5 loses magnetic force, and f inhales=0, temperature-sensitive magnet 5 is under the acting in conjunction of gravity G own and spring force F bullet, permanent magnet 4 moves downward, and permanent magnet 4 drives moving contact to be separated with fixed contact, and circuit is closed; Along with the temperature t of temperature-sensitive magnet 5 reduces, when temperature is reduced to Curie temperature T less than the temperature-sensitive magnet, repeat to adsorb closed action, realize circuit reset.
The above is a preferred implementation of the present utility model, certainly can not limit the interest field of the utility model with this, should be understood that, for those skilled in the art, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (3)
1. thermostat that can reset, comprise housing (1), spring (2), shell fragment assembly (3), spring (2) and shell fragment assembly (3) are located in the housing (1), this shell fragment assembly (3) is made up of spring plate (31) and quiet shell fragment (32), and the moving contact of spring plate (31) is corresponding with the fixed contact of quiet shell fragment (32); It is characterized in that: described housing (1) is divided into epicoele (11) and cavity of resorption (12), in the epicoele (11) of housing (1), be provided with the magnet (4) that is connected with spring plate (31), also be provided with temperature-sensitive magnet (5) at the top of epicoele (11), spring (2) is located between magnet (4) and the temperature-sensitive magnet (5).
2. the thermostat that resets according to claim 1 is characterized in that: be connected by connecting rod (6) between described magnet (4) and the spring plate (31).
3. the thermostat that resets according to claim 1 is characterized in that: described magnet (4) is a permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200472362U CN202003907U (en) | 2011-02-25 | 2011-02-25 | Resettable temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200472362U CN202003907U (en) | 2011-02-25 | 2011-02-25 | Resettable temperature controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003907U true CN202003907U (en) | 2011-10-05 |
Family
ID=44706636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200472362U Expired - Fee Related CN202003907U (en) | 2011-02-25 | 2011-02-25 | Resettable temperature controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993888A (en) * | 2017-12-12 | 2018-05-04 | 佛山市程显科技有限公司 | A kind of temperature controller automatic power-off protection device |
-
2011
- 2011-02-25 CN CN2011200472362U patent/CN202003907U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107993888A (en) * | 2017-12-12 | 2018-05-04 | 佛山市程显科技有限公司 | A kind of temperature controller automatic power-off protection device |
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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: 20111005 Termination date: 20120225 |