CN210981572U - Novel temperature sensor with grounding wire - Google Patents
Novel temperature sensor with grounding wire Download PDFInfo
- Publication number
- CN210981572U CN210981572U CN201922410925.4U CN201922410925U CN210981572U CN 210981572 U CN210981572 U CN 210981572U CN 201922410925 U CN201922410925 U CN 201922410925U CN 210981572 U CN210981572 U CN 210981572U
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- temperature sensor
- cup
- inner cup
- thermistor
- temperature
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Abstract
The utility model provides a novel take temperature sensor of earth connection guarantees the effect of earth connection through the improvement structure, improves the security of product. The temperature sensor comprises a temperature sensor inner cup and a temperature sensor outer cup with bottom through holes, a spring with acting force along the vertical direction is arranged between the temperature sensor inner cup and the temperature sensor outer cup, a temperature sensing cap is fixed at the cup opening of the temperature sensor inner cup, supporting legs in the vertical direction are arranged at the bottom of the temperature sensor inner cup, a limiting seam for inserting the supporting legs is arranged at the bottom of the temperature sensor outer cup, the bottom of the supporting legs is inserted into the limiting seam and then clamped with the limiting seam through deformation, a thermistor is tightly attached to the inner top surface of the temperature sensing cap, a connecting wire of the thermistor sequentially penetrates through the bottom through holes of the temperature sensor inner cup and the bottom through holes of the temperature sensor outer cup, the thermistor is fixed through a supporting cover which is overlapped between the cup openings of the temperature sensing cap and the temperature sensor inner cup, the bottom of the supporting cover is connected with a ground wire, and the ground wire sequentially penetrates through the.
Description
Technical Field
The utility model relates to an electricity rice cooker temperature sensor technical field, concretely relates to novel take temperature sensor of earth connection.
Background
The traditional electric rice cooker usually adopts a magnetic steel suction device as a switch for controlling heating of the electric rice cooker in a temperature-limiting manner, as shown in fig. 1 and fig. 2, an inner cup 1 and an outer cup 2 of a temperature sensor are provided with through holes at the bottom, a spring 3 with acting force along the vertical direction is arranged between the inner cup 1 and the outer cup 2 of the temperature sensor, a temperature sensing cap 4 is fixed at the cup mouth of the inner cup 1 of the temperature sensor, a supporting leg 11 in the vertical direction is arranged at the bottom of the inner cup 1 of the temperature sensor, a limiting seam 21 for inserting the supporting leg 11 is arranged at the bottom of the outer cup 2 of the temperature sensor, the limiting seam 21 is clamped by deformation after the bottom end of the supporting leg 11 is inserted into the limiting seam 21, a magnetic steel 5 is arranged on the inner. During operation, the magnetic steel 5 is higher than or lower than the Curie point through the induction temperature to realize the on-off of the heating circuit, and the power-off protection is realized without the inner pot through the draw hook 6 and the elastic structure. The magnetic steel attracting device has higher performance requirement on the magnetic steel, and when the magnetic steel is used for a long time, the magnetism of the magnetic steel is reduced due to various reasons, so that the whole magnetic steel attracting device cannot work, and the temperature sensor fails. At present, the mainstream electric rice cooker adopts a new electronic temperature sensor using a thermistor, and the electronic temperature sensor has the advantages of large temperature controllable range, good control performance and the like. The structure of the magnetic steel suction device is greatly different from that of an electronic temperature sensor adopting a thermistor, if a manufacturer needs to produce a new electronic temperature sensor, a large amount of original production line equipment investment and a large amount of semi-finished products need to be abandoned, and the structure of the bottom plate of the electric cooker needs to be redesigned, so that great resource waste can be caused. Therefore, in the existing electronic temperature sensor using the thermistor, the external temperature sensing structure still continues to use the metal inner and outer cup structure of the traditional magnetic steel suction device. However, at present, the new electronic temperature sensor using the thermistor is not provided with a ground wire, or the ground wire is connected to the bottom of the inner cup of the temperature sensor or the bottom of the outer cup of the temperature sensor due to the problem of the assembly process, so that a part of damage rate still exists in the leakage test, and the 3C certification requirement cannot be met.
Disclosure of Invention
The utility model aims at providing a novel take temperature sensor of earth connection guarantees the effect of earth connection through the improvement structure, improves the security of product.
According to the utility model, a novel temperature sensor with grounding wires comprises a temperature sensor inner cup and a temperature sensor outer cup with bottom uniform through holes, a spring with acting force along the vertical direction is arranged between the temperature sensor inner cup and the temperature sensor outer cup, a temperature sensing cap is fixed on the cup mouth of the temperature sensor inner cup, a supporting leg in the vertical direction is arranged at the bottom of the temperature sensor inner cup, a limiting seam for the supporting leg to be inserted is arranged at the bottom of the temperature sensor outer cup, the bottom end of the supporting leg is inserted into the limiting seam and then clamped by deformation, a thermistor is tightly fixed on the inner top surface of the temperature sensing cap, the connecting wire of the thermistor sequentially passes through the bottom through hole of the temperature sensor inner cup and the bottom through hole of the temperature sensor outer cup, the key is that the thermistor is fixed through a supporting cover lapped between the cup mouths of the temperature sensor inner cup and the temperature sensor inner cup, the bottom of the supporting cover is connected with the grounding wire, the ground wire sequentially penetrates through the bottom through hole of the inner cup of the temperature sensor and the bottom through hole of the outer cup of the temperature sensor.
The utility model discloses a new thermistor fixed knot constructs and ground wire fixed knot constructs for the direct electricity of ground wire connects relational element and has both included thermistor, has included the interior cup of temperature sensing cap and temperature sensor again, and the effect performance of ground wire can be guaranteed to the influence of ground wire electrical property to the movable contact of cup and the outer cup of temperature sensor in having avoided the temperature sensor again simultaneously, improves the reliability of product.
Preferably, the ground wire is welded and fixed to the support cover.
Preferably, the inner cup of the temperature sensor and the temperature sensing cap are fixed by riveting.
Drawings
Fig. 1 is a schematic structural diagram of a conventional magnetic steel temperature limiter.
FIG. 2 is a schematic bottom structure view of the outer cup of the temperature sensor.
Fig. 3 is a schematic structural diagram of the present invention.
In which the figures are as follows: 1. an inner cup of a temperature sensor; 11. supporting legs; 2. a temperature sensor outer cup; 21. limiting the seam; 3. a spring; 4. a temperature sensing cap; 5. magnetic steel; 6. pulling a hook; 7. a thermistor; 8. a support cover; 9. and a ground line.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, and the like.
Referring to fig. 2 and 3, the novel temperature sensor with grounding wire of the present invention comprises a temperature sensor inner cup 1 and a temperature sensor outer cup 2 having through holes at the bottom, a spring 3 having an acting force along the vertical direction is arranged between the temperature sensor inner cup 1 and the temperature sensor outer cup 2, a temperature sensing cap 4 is fixed at the rim of the temperature sensor inner cup 1, a supporting leg 11 is arranged at the bottom of the temperature sensor inner cup 1, a spacing seam 21 for the supporting leg 11 to insert is arranged at the bottom of the temperature sensor outer cup 2, the spacing seam 21 is blocked by deformation after the bottom end of the supporting leg 11 is inserted into the spacing seam 21, a thermistor 7 is closely fixed at the inner top surface of the temperature sensing cap 4, a connecting wire of the thermistor 7 sequentially passes through the through hole at the bottom of the temperature sensor inner cup 1 and the through hole at the bottom of the temperature sensor outer cup 2, the thermistor 7 is fixed by a supporting cap 8 overlapping between the temperature sensing cap 4 and the rim of the temperature sensor inner cup 1, the bottom of, the ground wire 9 sequentially passes through the bottom through hole of the inner cup 1 of the temperature sensor and the bottom through hole of the outer cup 2 of the temperature sensor.
The utility model discloses a new thermistor fixed knot constructs and ground wire fixed knot constructs for the direct electric connection relation element of ground wire 9 has both included thermistor 7, has included cup 1 in temperature sensing cap 4 and the temperature sensor again, and the movable contact of cup 1 in the temperature sensor and the outer cup 2 of temperature sensor has been avoided again simultaneously to the influence of ground wire 9 electrical property, can guarantee the effect performance of ground wire 9, improves the reliability of product, accords with the requirement of 3C authentication.
Preferably, the ground wire 9 is welded to the support cover 8.
Preferably, the temperature sensor inner cup 1 and the temperature sensing cap 4 are fixed by caulking.
Claims (3)
1. A novel temperature sensor with a grounding wire comprises a temperature sensor inner cup and a temperature sensor outer cup with through holes at the bottom, wherein a spring with acting force along the vertical direction is arranged between the temperature sensor inner cup and the temperature sensor outer cup, a temperature sensing cap is fixed at the cup opening of the temperature sensor inner cup, a supporting leg in the vertical direction is arranged at the bottom of the temperature sensor inner cup, a limiting seam for the supporting leg to be inserted is arranged at the bottom of the temperature sensor outer cup, the bottom end of the supporting leg is inserted into the limiting seam and then clamped with the limiting seam through deformation, a thermistor is tightly fixed at the inner top surface of the temperature sensing cap, a connecting wire of the thermistor sequentially passes through a bottom through hole of the temperature sensor inner cup and a bottom through hole of the temperature sensor outer cup, the temperature sensor is characterized in that the thermistor is fixed through a supporting cover lapped between the cup openings of the temperature sensing cap and the temperature sensor inner cup, the bottom of the supporting cover is connected with, the ground wire sequentially penetrates through the bottom through hole of the inner cup of the temperature sensor and the bottom through hole of the outer cup of the temperature sensor.
2. The novel grounded temperature sensor of claim 1, wherein the ground is secured to the support cap by welding.
3. The novel temperature sensor with a grounding wire according to claim 1 or 2, wherein the temperature sensor inner cup and the temperature sensing cap are fixed by riveting.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922410925.4U CN210981572U (en) | 2019-12-28 | 2019-12-28 | Novel temperature sensor with grounding wire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201922410925.4U CN210981572U (en) | 2019-12-28 | 2019-12-28 | Novel temperature sensor with grounding wire |
Publications (1)
Publication Number | Publication Date |
---|---|
CN210981572U true CN210981572U (en) | 2020-07-10 |
Family
ID=71438142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201922410925.4U Expired - Fee Related CN210981572U (en) | 2019-12-28 | 2019-12-28 | Novel temperature sensor with grounding wire |
Country Status (1)
Country | Link |
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CN (1) | CN210981572U (en) |
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2019
- 2019-12-28 CN CN201922410925.4U patent/CN210981572U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20201228 |
|
CF01 | Termination of patent right due to non-payment of annual fee |