CN212783237U - Small household electrical appliance temperature controller capable of preventing dry burning - Google Patents
Small household electrical appliance temperature controller capable of preventing dry burning Download PDFInfo
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- CN212783237U CN212783237U CN202021830527.4U CN202021830527U CN212783237U CN 212783237 U CN212783237 U CN 212783237U CN 202021830527 U CN202021830527 U CN 202021830527U CN 212783237 U CN212783237 U CN 212783237U
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- movable contact
- rod
- fusing
- temperature controller
- contact piece
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Abstract
The utility model provides a prevent small household appliances temperature controller of dry combustion method, including base, contact group, the base including the metal disc, contact group including movable contact spring and static contact, including the fusing pole, the fusing pole setting between metal disc and movable contact spring, constitute location fit between the one end of fusing pole and the metal disc, the other end of fusing pole can compress tightly on the movable contact spring, and the fusing pole can relieve compressing tightly to the movable contact spring when burning futilely, the movable contact spring pressurized can swing to hugging closely the position department at the static contact spring, and the movable contact spring can elastic reset to the position department with the static contact phase separation. The utility model provides a small household appliance temperature controller for preventing dry heating, which has simpler structure and lower cost.
Description
Technical Field
The utility model relates to a prevent small household appliances temperature controller of dry combustion method.
Background
The temperature controller is also called as a temperature controller and a temperature protector, and is commonly used in small household electrical appliances, such as a hot water kettle, a coffee pot and other liquid heaters with electric heating generating devices, the temperature controller in the prior art generally comprises a contact piece group, a temperature sensing on-off component and an anti-dry burning component, wherein the contact piece group comprises a static contact piece and a movable contact piece, the temperature sensing on-off component is used for controlling the separation/attachment between the static contact piece and the movable contact piece, the anti-dry burning component comprises a swing rod, one end of the swing rod extends to a position close to the contact piece group, the swing rod can enable the contact piece group to extend into the space between the static contact piece and the movable contact piece after the separation of the temperature sensing on-off component, so that the movable contact piece and the static contact piece can not reset to the attached state after the temperature is reduced, thereby avoiding the small household electrical appliances from reciprocating temperature increase/decrease caused by the, the phenomenon of 'dry burning' occurs after the water is evaporated. But the small household appliance temperature controller of the prior art, its spare part of preventing dry combustion method subassembly is more, the structure is comparatively complicated, makes the volume of temperature controller great on the one hand, and on the other hand cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model provides a small household appliance temperature controller for preventing dry heating, which has simpler structure and lower cost.
In order to realize the purpose, the utility model provides a prevent small household appliances temperature controller of dry combustion method, including base, contact group and fusing pole, the base including the metal disc, contact group including movable contact spring and static contact, the fusing pole setting between metal disc and movable contact spring, constitute location fit between the one end of fusing pole and the metal disc, the other end of fusing pole can compress tightly on the movable contact spring, and the fusing pole can relieve compressing tightly to the movable contact spring when burning futilely, the movable contact spring pressurized can swing to hugging closely the position department at the static contact spring, and the movable contact spring can elastic reset to the position department with the static contact phase separation.
The technical scheme has the advantages that: through the fusing pole that sets up between metal disc and movable contact spring, and the fusing pole can be based on whether little household electrical appliances are in the state of dry combustion method, keep/remove compressing tightly the movable contact spring, when little household electrical appliances normal operating, the fusing pole compresses tightly on the movable contact spring, make movable contact spring swing to the position department of hugging closely the static contact spring, make the circuit intercommunication, when little household electrical appliances dry combustion method, the fusing pole removes compressing tightly the movable contact spring, movable contact spring elasticity resets the back, movable contact spring and static contact phase separation, circuit disconnection this moment, thereby the condition that small household electrical appliances product took place "dry combustion method", and the structure is simple relatively, the spare part of needs is few, be favorable to the reduce cost when product volume further reduces.
The utility model discloses can further set up to: the fusing rod comprises a rear rod body and a front rod body located at one end of the rear rod body, the radius of the rear rod body is larger than that of the front rod body, an annular abutting portion is formed between the rear rod body and the front rod body, the front rod body is inserted into the metal disc, and the abutting portion is abutted to the metal disc.
Through further setting up, preceding body of rod is inserted and is established on the metal disc, and be formed with between the body of rod and the preceding body of rod behind because the radius difference with metal disc butt complex butt portion, on the one hand, the both ends of the body of rod of back respectively with the metal disc, movable contact spring looks butt, and provide a reverse elastic force when receiving to compress tightly by the movable contact spring, form axial clamp tightly, it is spacing, on the other hand, insert the preceding body of rod of establishing on the metal disc and can form the radial spacing of fusing rod, and insert the preceding body of rod of establishing on the metal disc and also can be convenient for fix a position it when fusing rod assembles.
The utility model discloses can further set up to: including the guide that is the tube-shape, the guide cup joint in the back body of rod department of fusing the pole, and be provided with a plurality of protruding muscle on the body of rod of back, a plurality of protruding muscle circumference equipartition on the periphery wall of the body of rod of back.
Through further setting up, because the fusing pole is the last line of defence that the small household appliances prevented dry combustion method, can not trigger the use in the longer time, through the back body of rod department that the guide part cup joints at the fusing pole that will be the tube-shape, avoid the radial rocking of fusing pole to a plurality of protruding muscle of back body of rod department circumference equipartition strengthen joint strength between them, avoid in advance the pine to take off, damage.
The utility model discloses can further set up to: the guide piece including connecting portion, the base including the drain pan, the drain pan on be provided with the constant head tank that supplies the connecting portion installation, the constant head tank set up in the radial one side department of fuse-link, and the cross-section of constant head tank is T shape.
Through further setting up, the constant head tank that the cross-section is the T shape supplies connecting portion to install, constitutes being connected between guide and the drain pan, the installation of the fusing pole of being convenient for to the constant head tank cross-section is the T shape, and sets up in the radial extension department of fusing pole, and the fusing pole of avoiding that can be fine takes place radial rocking with the guide, and leads to the condition emergence of not hard up, separation.
The utility model discloses can further set up to: the thermistor comprises thermistor pieces which are arranged in series, wherein the thermistor pieces are positive temperature coefficient thermistors.
By further providing the thermistor member as a positive temperature coefficient thermistor, the resistance value of the thermistor member can be increased sharply when the temperature rises to a certain level, and the circuit can be cut off in an insulated manner at a certain temperature, thereby controlling the temperature within a certain range of values.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention;
fig. 2 is a top view of an embodiment of the present invention;
fig. 3 is a cross-sectional view taken along line a-a of fig. 2 according to an embodiment of the present invention;
fig. 4 is a schematic diagram of the internal structure of the embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fuse in an embodiment of the present invention.
Wherein: a base 1; a metal plate 11; a bottom case 12; a positioning groove 121; a contact set 2; a movable contact piece 21; a static contact piece 22; a fuse rod 3; a rear rod body 31; an abutting portion 311; the convex ribs 312; a front rod body 32; a temperature sensing on-off component 4; a bimetal 41; a ceramic rod 42; a thermistor member 5; a guide 6; a connecting portion 61.
Detailed Description
The utility model relates to an embodiment of a small household appliance temperature controller for preventing dry heating is shown in figures 1-5: the device comprises a base 1, a contact piece group 2, a fusing rod 3, a temperature sensing on-off component 4 and a thermistor 5, wherein the base 1 comprises a metal disc 11, the contact piece group 2 comprises a movable contact piece 21 and a static contact piece 22, the fusing rod 3 is arranged between the metal disc 11 and the movable contact piece 21, one end of the fusing rod 3 and the metal disc 11 form positioning fit, the other end of the fusing rod 3 can be tightly pressed on the movable contact piece 21, the fusing rod 3 can release the compression on the movable contact piece 21 in dry burning, in the embodiment, the dry burning refers to a state that the internal liquid is too little after the small household appliance is repeatedly boiled and evaporated, the fusing rod 3 is made of plastic materials, the fusing rod can be melted due to overhigh temperature in the dry burning state, so that the compression on the movable contact piece 21 is released, the movable contact piece 21 can swing to the position of the static contact piece 22 under the pressure, and the movable contact piece 21 can be elastically restored to a position separated from the stationary contact piece 22. The temperature sensing on-off assembly 4 comprises a bimetallic strip 41 and a ceramic rod 42, the bimetallic strip 41 can be deformed by heating and pushes the ceramic rod 42 to displace, and the ceramic rod 42 displaces to break a circuit, the thermistor piece 5 is a positive temperature coefficient thermistor, and the resistance value of the positive temperature coefficient thermistor can be increased sharply until the thermistor is insulated when the temperature rises to a certain height. The fusing rod 3 comprises a rear rod body 31 and a front rod body 32 located at one end of the rear rod body, the radius of the rear rod body 31 is larger than that of the front rod body 32, an annular abutting portion 311 is formed between the rear rod body 31 and the front rod body 32, the front rod body 32 is inserted into the metal disc 11, and the abutting portion 311 is abutted to the metal disc 11. Including the guide 6 that is the tube-shape, guide 6 cup joint the back body of rod 31 department at fusing rod 3, and be provided with a plurality of protruding muscle 312 on the back body of rod 31, a plurality of protruding muscle 312 circumference equipartition on the periphery wall of the back body of rod 31. Guide 6 including connecting portion 61, base 1 including drain pan 12, drain pan 12 on be provided with the constant head tank 121 that supplies connecting portion 61 to install, constant head tank 121 set up in the radial one side department of fusing pole 3, and the cross-section of constant head tank 121 is T shape.
The above examples are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a prevent small household appliances temperature controller of dry combustion method, including base, contact group, the base including the metal disc, contact group including movable contact spring and static contact, its characterized in that: the fusing rod is arranged between the metal disc and the movable contact piece, one end of the fusing rod is in positioning fit with the metal disc, the other end of the fusing rod can be pressed on the movable contact piece, the fusing rod can release the pressing of the movable contact piece during dry burning, the movable contact piece can swing to the position tightly attached to the static contact piece under the pressure, and the movable contact piece can elastically reset to the position separated from the static contact piece.
2. The small household appliance temperature controller for preventing dry burning according to claim 1, which is characterized in that: the fusing rod comprises a rear rod body and a front rod body located at one end of the rear rod body, the radius of the rear rod body is larger than that of the front rod body, an annular abutting portion is formed between the rear rod body and the front rod body, the front rod body is inserted into the metal disc, and the abutting portion is abutted to the metal disc.
3. The small household appliance temperature controller for preventing dry heating according to claim 1 or 2, characterized in that: including the guide that is the tube-shape, the guide cup joint in the back body of rod department of fusing the pole, and be provided with a plurality of protruding muscle on the body of rod of back, a plurality of protruding muscle circumference equipartition on the periphery wall of the body of rod of back.
4. The small household appliance temperature controller for preventing dry burning of claim 3, which is characterized in that: the guide piece including connecting portion, the base including the drain pan, the drain pan on be provided with the constant head tank that supplies the connecting portion installation, the constant head tank set up in the radial one side department of fuse-link, and the cross-section of constant head tank is T shape.
5. The small household appliance temperature controller for preventing dry burning according to claim 1, 2 or 4, characterized in that: the thermistor comprises thermistor pieces which are arranged in series, wherein the thermistor pieces are positive temperature coefficient thermistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830527.4U CN212783237U (en) | 2020-08-27 | 2020-08-27 | Small household electrical appliance temperature controller capable of preventing dry burning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021830527.4U CN212783237U (en) | 2020-08-27 | 2020-08-27 | Small household electrical appliance temperature controller capable of preventing dry burning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212783237U true CN212783237U (en) | 2021-03-23 |
Family
ID=75055399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021830527.4U Active CN212783237U (en) | 2020-08-27 | 2020-08-27 | Small household electrical appliance temperature controller capable of preventing dry burning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212783237U (en) |
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2020
- 2020-08-27 CN CN202021830527.4U patent/CN212783237U/en active Active
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