CN210625891U - Single thermistor temperature sensor - Google Patents
Single thermistor temperature sensor Download PDFInfo
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- CN210625891U CN210625891U CN201922006122.2U CN201922006122U CN210625891U CN 210625891 U CN210625891 U CN 210625891U CN 201922006122 U CN201922006122 U CN 201922006122U CN 210625891 U CN210625891 U CN 210625891U
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Abstract
The utility model discloses a single thermistor temperature sensor, which comprises a thermistor, an electric wire, a metal cover, an insulating bracket for fixedly mounting the thermistor and carrying out insulating support on two-pole pins of the thermistor and connecting parts of the two-pole pins of the thermistor and the electric wire, and a heat-conducting insulating part for heat-conducting insulation, which is arranged in the metal cover and is positioned between the cover surface of the metal cover and the thermistor; the heat-conducting insulating part is in heat-conducting contact with the metal cover and the thermistor respectively; the thermistor is supported in an insulating way by the insulating support and the heat-conducting insulating piece, heat conduction among the metal cover, the heat-conducting insulating piece and the thermistor is gapless, and the consistency of thermal reaction and thermal reaction is good; the electric wire can be directly folded together through the electric wire folding port on the insulating support, and meanwhile, the problems that the existing insulating mode of adding the insulating sleeve after axial glass sealing is adopted is complex in production process, high in production cost, low in production efficiency, incapable of realizing automatic production, easy to cause quality defects in the production link and the like can be solved.
Description
Technical Field
The utility model belongs to the technical field of the component is listened to the temperature, concretely relates to temperature sensor.
Background
The temperature is a very key physical quantity for controlling the intelligent electric cooker to cook, the intelligent electric cooker can monitor and judge possible heating defects through the temperature, and then timely finds and processes the heating defects, prevents the phenomenon of sticking to the cooker, and sets the operation according to the preset temperature, thereby ensuring the cooking quality. The process can be realized only by combining a thermistor temperature sensor and a singlechip to acquire temperature and then perform digital temperature conversion and output.
The assembling structure of the current thermistor temperature sensor for electric cookers such as electric cookers, electric pressure cookers, electric frying pans, electric chafing dishes and the like is shown in the attached drawing 1-2, exposed pins of two poles of a thermistor 1 are respectively welded or riveted with an electric wire 2 through a copper strip 3, then a glass fiber sleeve 4 is sleeved on the thermistor 1, the length of the glass fiber sleeve 4 extends to the copper strip 3 to prevent electric leakage, a transparent silicone tube 5 is sleeved outside the glass fiber sleeve 4, the length of the transparent silicone tube 5 extends to exceed the copper strip 3 to wrap the copper strip 3, then an inner glue outer fiber silicone tube 6 is sleeved on a connecting section of the thermistor 1 and the electric wire 2 outside the transparent silicone tube 5 to increase insulativity, a nylon ribbon 7 is used for tying the inner glue outer fiber silicone tube 6 and the transparent silicone tube 5, and a heat-conducting silicone grease 8 is coated on the transparent silicone tube 5 corresponding to the thermistor 1, the tied and connected electric wire 2 is sleeved with the sleeve 4, The thermistor 1 of the transparent silicone tube 5 and the inner glue outer fiber silicone tube 6 is sleeved on the inner fixing plate 9 and put into the metal cover 10, then the metal cover 10 is tightened to tightly press and connect the metal cover 10 on the inner fixing plate 9, and finally the spring 11 is installed. When the electric cooker is used, the inner container of the electric cooker is placed into the cooker body and then pressed on the metal cover 10, the metal cover 10 moves downwards for a certain distance, the resistance value of the thermistor 1 is changed along with the change of the temperature of the inner container, and signals are transmitted to the microprocessor control board to control heating.
The existing single thermistor temperature sensor has the following defects:
1. the thermistor 1 is insulated in a mode of sleeving an insulating sleeve after axial glass sealing, the metal cover 10 conducts heat to the outer transparent silicone tube 5 and then to the inner glass fiber sleeve 4 and then to the thermistor 1, the thermistor 1 with the axial glass sealing cannot be effectively and tightly attached to the metal surface of the metal cover 10, the gap between the outer transparent silicone tube 5 and the metal cover 10 can influence the heat conductivity, the heat conduction between the outer transparent silicone tube 5 and the metal cover 10 can be enhanced under the action of the heat conduction silicone grease 8, but the heat conduction silicone grease 8 cannot be filled in the gap between the inner glass fiber sleeve 4 and the outer transparent silicone tube 5, the gap exists all the time, and the air is blocked during the heat conduction, so that the thermistor 1 is slow in reaction; if the wall thickness of the sleeve is not uniform, the temperature of the computer board of the intelligent electric cooker is affected by inconsistent heating of the thermistor 1, the judgment of the temperature is inconsistent, the heating effect is inconsistent, the cooked rice or uncooked rice is burnt, the taste is poor, and the problems of slow thermal reaction and poor thermal reaction consistency exist;
2. the sleeving of the glass fiber sleeve 4, the transparent silicone tube 5 and the inner glue outer fiber silicone tube 6, the tightening of the nylon binding belt 7, the tied connected electric wire 2, the sleeving of the glass fiber sleeve 4, the transparent silicone tube 5 and the thermistor 1 of the inner glue outer fiber silicone tube 6 on the inner fixing plate 9 are all completed manually, so that the process is complex, the labor cost is high, the used materials are more, the resource waste is serious, the production efficiency is low, and the automatic production cannot be realized;
3. when the thermistor 1 sleeved with the insulating sleeve is fixed in the metal cover 10 by the inner fixing plate 9, the insulating sleeve is easily pressed through, and the phenomenon of poor withstand voltage and electric leakage is caused.
In summary, the existing single thermistor temperature sensor has the problems of slow thermal reaction, poor thermal reaction consistency, complex production process, high production cost, low production efficiency, incapability of realizing automatic production, easiness in causing quality defects in the production link and the like, and needs to be improved.
Disclosure of Invention
The utility model aims at providing a thermal reaction and thermal reaction uniformity are good and production process is simple, with low costs, efficient, do benefit to the single thermistor temperature sensor who realizes automated production.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a single thermistor temperature sensor comprises a thermistor, an electric wire and a metal cover, wherein two pole pins of the thermistor are respectively connected with the electric wire, and the single thermistor temperature sensor also comprises an insulating bracket which is used for fixedly mounting the thermistor and carrying out insulating support on the two pole pins of the thermistor and the connecting part of the two pole pins of the thermistor and the electric wire; the heat conduction insulating piece is arranged in the metal cover and positioned between the cover surface of the metal cover and the thermistor and used for heat conduction and insulation; the heat-conducting insulating part is in heat-conducting contact with the metal cover and the thermistor respectively, and the insulating support is fixedly installed on the metal cover.
Furthermore, the thermistor is positioned and installed on the end face of the insulating support, a wire groove for accommodating the two-pole pins of the thermistor, the wire and the connecting part of the two-pole pins of the thermistor and the wire is arranged in the insulating support, and the insulating support is further provided with a wire furling opening communicated with the wire groove for the wire to penetrate out of the insulating support.
Furthermore, a resistor installation groove is formed in the end face of the insulating support and communicated with the wire groove, and the thermistor is installed in the resistor installation groove and heat conduction silicone grease is filled in the resistor installation groove.
Further, the heat conducting insulating part is a ceramic plate or a heat conducting silica gel plate, and the heat conducting insulating part is in direct contact with the cover surface of the metal cover or heat conducting silicone grease is coated and filled between the heat conducting insulating part and the cover surface of the metal cover.
Furthermore, the insulation support comprises a left insulation support and a right insulation support, the left insulation support and the right insulation support are assembled, connected and combined to form the insulation support, the resistor installation grooves are symmetrically and respectively arranged on the end faces of the left insulation support and the right insulation support, the wire grooves are symmetrically and respectively arranged on the assembling faces of the left insulation support and the right insulation support along the directions of the two-pole pins of the thermistor, the connecting portions of the two-pole pins of the thermistor and the wire and the direction of the wire, and the wire drawing openings are symmetrically arranged on the left insulation support and the right insulation support.
Furthermore, a clamping groove is formed in the left insulating support, a barb clamping pin is arranged on the right insulating support corresponding to the clamping groove, and the right insulating support is connected with the clamping groove and the left insulating support in an assembling and connecting mode through the barb clamping pin to form the insulating support.
Furthermore, the outer wall of one end of the insulating support fixedly provided with the thermistor is provided with metal cover assembling grooves in a distributed mode, and the metal cover is tightly connected with the metal cover assembling grooves and the insulating support in a fixed mode through the side wall of the metal cover.
Furthermore, the device also comprises a spring, wherein the spring is arranged on the metal cover and sleeved on the outer side of the insulating support.
Preferably, the heat-conducting insulating member is in direct contact with the whole cover surface of the metal cover or in contact with the whole cover surface through the heat-conducting silicone grease.
Preferably, the pin of the thermistor is riveted and connected with the electric wire through a copper belt.
The utility model discloses following beneficial effect has:
the utility model relates to a single thermistor temperature sensor, which uses an insulating bracket and a heat conduction insulating part to carry out insulating support on a thermistor, and heat conduction among a metal cover, the heat conduction insulating part and the thermistor has no clearance, and the consistency of thermal reaction and thermal reaction is good; the electric wire can be directly folded together through the electric wire folding port on the insulating support, meanwhile, the problems that the existing mode of adding an insulating sleeve after axial glass sealing to insulate is complex in production process, high in production cost, low in production efficiency, incapable of realizing automatic production, easy to cause quality defects in the production link and the like can be solved, and the electric wire folding device has the advantages of being good in thermal reaction and thermal reaction consistency, simple in production process, low in cost, high in efficiency and beneficial to realizing automatic production.
Drawings
FIG. 1 is a schematic diagram of an overall assembly structure of a conventional single thermistor temperature sensor;
FIG. 2 is a schematic diagram of an insulation structure of a conventional single thermistor temperature sensor;
fig. 3 is a schematic view of an overall assembly structure of a single thermistor temperature sensor according to the present invention;
FIG. 4 is an exploded view of a single thermistor temperature sensor according to the present invention;
FIG. 5 is a schematic view of the end face structure of a single thermistor temperature sensor of the present invention when a thermistor is mounted and fixed on an insulating support thereof;
fig. 6 is a split structure diagram of the insulation support of the single thermistor temperature sensor of the present invention.
In the figure: 1. a thermistor; 2. an electric wire; 3. copper strips; 4. a glass fiber sleeve; 5. a transparent silicone tube; 6. an inner glue and outer fiber silicone tube; 7. nylon cable ties; 8. heat-conducting silicone grease; 9. an inner fixing plate; 10. a metal cover; 11. a spring; 12. an insulating support; 13. a thermally conductive insulator; 120. a wire gathering opening; 121. a resistor mounting groove; 122. a wire slot; 123. a metal cover assembly groove; 124. a left insulating support; 125. a right insulating support; 124a, a card slot; 125a and a barb clamp pin.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments so as to more clearly understand the technical idea claimed in the invention.
As shown in fig. 3-4, the present invention relates to a single thermistor temperature sensor, which comprises a thermistor 1, an electric wire 2 and a metal cover 10, wherein two-pole pins of the thermistor 1 are respectively connected to the electric wire 2, the single thermistor temperature sensor further comprises an insulating support 12 for fixedly mounting the thermistor 1 and supporting the two-pole pins of the thermistor 1 and the two-pole pins of the thermistor 1 in an insulating manner with a connecting portion of the electric wire 2, and a heat conducting insulating member 13 for conducting heat and insulating disposed in the metal cover 10 and located between a cover surface of the metal cover 10 and the thermistor 1; the heat conducting insulator 13 is respectively in heat conducting contact with the metal cover 10 and the thermistor 1, and the insulating bracket 12 is fixedly mounted on the metal cover 10; the thermistor 1 is supported in an insulating mode through the insulating support 12 and the heat conducting insulating piece 13, heat conduction among the metal cover 10, the heat conducting insulating piece 13 and the thermistor 1 is gapless, and thermal reaction consistency are good.
Specifically, the thermistor 1 is positioned and mounted on an end surface of the insulating support 12, a wire groove 122 for accommodating two-pole pins of the thermistor 1, the wire 2 and a connecting portion between the two-pole pins of the thermistor 1 and the wire 2 is arranged in the insulating support 12, the insulating support 12 further has a wire drawing opening 120 communicated with the wire groove 122 for the wire 2 to pass through the insulating support 12, and the wire 2 can be directly drawn together through the wire drawing opening 120 on the insulating support 12.
More specifically, a resistor installation groove 121 is formed in the end face of the insulating support 12, the resistor installation groove 121 is communicated with the wire groove 122, the thermistor 1 is installed in the resistor installation groove 121, the heat-conducting silicone grease 8 is filled in the resistor installation groove 121, and no heat-conducting gap exists between the heat-conducting insulating member 13 and the thermistor 1.
The heat conducting insulating part 13 is a ceramic plate or a heat conducting silica gel plate, the heat conducting insulating part 13 is in direct contact with the cover surface of the metal cover 10, or heat conducting silicone grease 8 is coated and filled between the heat conducting insulating part 13 and the cover surface of the metal cover 10, and no gap exists between the metal cover 10 and the heat conducting insulating part 13 in heat conduction.
The insulation support 12 is fixedly provided with a metal cover assembling groove 123 distributed on the outer wall of one end of the thermistor 1, the metal cover 10 is tightly pressed and connected with the metal cover assembling groove 123 and the insulation support 12 through the side wall of the metal cover, and the assembly structure between the metal cover 10 and the insulation support 12 is simple and convenient to assemble.
As shown in fig. 5 to 6, the insulating support 12 specifically includes a left insulating support 124 and a right insulating support 125, the left insulating support 124 and the right insulating support 125 are assembled, connected and combined to form the insulating support 12, the resistor installation slots 121 are symmetrically disposed on the end surfaces of the left insulating support 124 and the right insulating support 125 respectively, the wire slots 122 are symmetrically disposed on the assembled surfaces of the left insulating support 124 and the right insulating support 125 respectively along the two-pole pins of the thermistor 1, the connection portion between the two-pole pins of the thermistor 1 and the wire 2, and the direction of the wire 2, and the wire gathering openings 120 are symmetrically disposed on the left insulating support 124 and the right insulating support 125; the insulation support 12 adopts an assembled structure, so that the thermistor 1 and the pins thereof and the wire 2 can be conveniently installed and positioned.
Specifically, a clamping groove 124a is formed in the left insulating support 124, a barb clamping pin 125a is formed in the right insulating support 125 corresponding to the clamping groove 124a, the right insulating support 125 is connected to the clamping groove 124a through the barb clamping pin 125a in a clamping mode and is assembled with the left insulating support 124 to form the insulating support 12, and the left insulating support 124 and the right insulating support 125 of the insulating support 12 are simple in assembling and connecting structure and convenient to assemble.
As shown in fig. 3, the metal cover further comprises a spring 11, and the spring 11 is mounted on the metal cover 10 and is sleeved outside the insulating support 12.
Specifically, the heat conducting insulating part 13 is in direct contact with the whole cover surface of the metal cover 10 or is in contact with the heat conducting silicone grease 8, so that the heat conducting effect between the metal cover 10 and the heat conducting insulating part 13 is better and faster.
The pin of the thermistor 1 is riveted with the wire 2 through a copper strip 3.
The utility model discloses a single thermistor temperature sensor, when the production assembly, firstly two poles of the earth pin of thermistor 1 connect electric wire 2 respectively, then two poles of the earth pin of thermistor 1, two poles of the earth pin of thermistor 1 and the connecting portion of electric wire 2 and electric wire 2 fall into the wire casing 122 of left insulating support 124 or right insulating support 125 of insulating support 12, thermistor 1 falls into the resistance mounting groove 121 of left insulating support 124 or right insulating support 125, then left insulating support 124 and right insulating support 125 are assembled together, then fill in resistance mounting groove 121 and thermistor 1 surface coating heat conduction silicone grease 8, then put heat conduction insulator 13 into metal cover 10 after coating heat conduction silicone grease 8 on the inside capping of metal cover 10, then pack insulating support 12 installed with thermistor 1 into metal cover 10 and compress tightly and connect by tightening up metal cover 10, finally, the spring 11 is sleeved outside the insulating support 12 and is arranged in the metal cover 10; the thermistor 1 is supported in an insulating way by the insulating support 12 and the heat-conducting insulating piece 13, heat conduction among the metal cover 10, the heat-conducting insulating piece 13 and the thermistor 1 is gapless, and the consistency of thermal reaction and thermal reaction is good; the wires 2 can be directly folded together through the wire folding openings 120 on the insulating bracket 12 without being tied by a binding tape; meanwhile, the problems that the existing mode of adding an insulating sleeve after axial glass sealing to insulate is complex in production process, more in used materials, more in material waste, high in production cost, low in production efficiency, incapable of realizing automatic production, easy to cause quality defects in the production link and the like can be solved, and the method has the characteristics of good thermal reaction and thermal reaction consistency, simple production process, low cost, high efficiency and contribution to realizing automatic production.
Various other changes and modifications may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such changes and modifications should fall within the scope of the present invention.
Claims (10)
1. The utility model provides a single thermistor temperature sensor, includes thermistor (1), electric wire (2) and metal covering (10), the two poles of the earth pin of thermistor (1) is connected respectively electric wire (2), its characterized in that: the wire fixing device is characterized by also comprising an insulating support (12) which is used for fixedly mounting the thermistor (1) and carrying out insulating support on the two-pole pins of the thermistor (1) and the connecting part of the two-pole pins of the thermistor (1) and the wire (2);
a heat conduction insulating piece (13) which is arranged in the metal cover (10) and is positioned between the cover surface of the metal cover (10) and the thermistor (1) and used for heat conduction and insulation;
the heat-conducting insulating piece (13) is in heat-conducting contact with the metal cover (10) and the thermistor (1) respectively, and the insulating support (12) is fixedly installed on the metal cover (10).
2. A single thermistor temperature sensor according to claim 1, characterized in that: thermistor (1) location install in the terminal surface of insulating support (12), have in insulating support (12) and hold two poles of the earth pin of thermistor (1), electric wire (2) and two poles of the earth pin of thermistor (1) with wire casing (122) of the connecting portion of electric wire (2), insulating support (12) still have with the communicating confession of wire casing (122) electric wire (2) are followed electric wire draw in mouthful (120) that wear out in insulating support (12).
3. A single thermistor temperature sensor according to claim 2, characterized in that: be provided with resistance mounting groove (121) on the terminal surface of insulating support (12), resistance mounting groove (121) with wire casing (122) communicate with each other, thermistor (1) install in resistance mounting groove (121) just fill heat conduction silicone grease (8) in resistance mounting groove (121).
4. A single thermistor temperature sensor according to claim 1, characterized in that: the heat conducting insulating part (13) is a ceramic plate or a heat conducting silica gel plate, and the heat conducting insulating part (13) is in direct contact with the cover surface of the metal cover (10) or heat conducting silicone grease (8) is coated and filled between the heat conducting insulating part (13) and the cover surface of the metal cover (10).
5. A single thermistor temperature sensor according to claim 3, characterized in that: the insulation support (12) comprises a left insulation support (124) and a right insulation support (125), the left insulation support (124) and the right insulation support (125) are assembled, connected and combined to form the insulation support (12), the resistor installation grooves (121) are symmetrically arranged on the end faces of the left insulation support (124) and the right insulation support (125) respectively, the wire grooves (122) are symmetrically arranged on the assembling faces of the left insulation support (124) and the right insulation support (125) respectively along the two-pole pins of the thermistor (1), the connecting portion of the two-pole pins of the thermistor (1) and the wire (2) and the trend of the wire (2), and the wire furling ports (120) are symmetrically arranged on the left insulation support (124) and the right insulation support (125).
6. A single thermistor temperature sensor according to claim 5, characterized in that: a clamping groove (124 a) is formed in the left insulating support (124), a barb clamping pin (125 a) is arranged on the right insulating support (125) corresponding to the clamping groove (124 a), and the right insulating support (125) is connected to the clamping groove (124 a) through the barb clamping pin (125 a) in a clamping mode and is assembled with the left insulating support (124) to form the insulating support (12).
7. A single thermistor temperature sensor according to claim 1, characterized in that: the insulation support (12) is fixedly provided with a metal cover assembling groove (123) which is distributed on the outer wall of one end of the thermistor (1), and the metal cover (10) is tightly pressed and connected with the metal cover assembling groove (123) through the side wall of the metal cover assembling groove and fixedly connected with the insulation support (12).
8. A single thermistor temperature sensor according to claim 1, characterized in that: the insulating support is characterized by further comprising a spring (11), wherein the spring (11) is installed on the metal cover (10) and sleeved on the outer side of the insulating support (12).
9. A single thermistor temperature sensor according to claim 4, characterized in that: the heat-conducting insulating piece (13) is in direct contact with the whole cover surface of the metal cover (10) or in contact with the whole cover surface through the heat-conducting silicone grease (8).
10. A single thermistor temperature sensor according to claim 1, characterized in that: the pin of the thermistor (1) is riveted with the electric wire (2) through a copper strip (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006122.2U CN210625891U (en) | 2019-11-20 | 2019-11-20 | Single thermistor temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922006122.2U CN210625891U (en) | 2019-11-20 | 2019-11-20 | Single thermistor temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210625891U true CN210625891U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922006122.2U Active CN210625891U (en) | 2019-11-20 | 2019-11-20 | Single thermistor temperature sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN210625891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532677A (en) * | 2021-08-23 | 2021-10-22 | 广东福尔电子有限公司 | Insulating type electric pot temperature sensor detection device |
| CN115014563A (en) * | 2022-07-14 | 2022-09-06 | 广东福尔电子有限公司 | Single thermistor sensor |
-
2019
- 2019-11-20 CN CN201922006122.2U patent/CN210625891U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113532677A (en) * | 2021-08-23 | 2021-10-22 | 广东福尔电子有限公司 | Insulating type electric pot temperature sensor detection device |
| CN115014563A (en) * | 2022-07-14 | 2022-09-06 | 广东福尔电子有限公司 | Single thermistor sensor |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A single thermistor temperature sensor Effective date of registration: 20220424 Granted publication date: 20200526 Pledgee: China Construction Bank Corporation Xinyi sub branch Pledgor: GUANGDONG FUER ELECTRONICS Co.,Ltd. Registration number: Y2022980004727 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230626 Granted publication date: 20200526 Pledgee: China Construction Bank Corporation Xinyi sub branch Pledgor: GUANGDONG FUER ELECTRONICS Co.,Ltd. Registration number: Y2022980004727 |