CN216449049U - High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor - Google Patents
High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor Download PDFInfo
- Publication number
- CN216449049U CN216449049U CN202122805316.6U CN202122805316U CN216449049U CN 216449049 U CN216449049 U CN 216449049U CN 202122805316 U CN202122805316 U CN 202122805316U CN 216449049 U CN216449049 U CN 216449049U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- sensing element
- pin
- temperature sensor
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor which comprises a sensing end and a sleeve, wherein the sensing end comprises a sensing element and a pin, the sensing element is arranged at one end of the sleeve, the pin penetrates through one end of the sleeve and can be electrically connected with a wire positioned at the other end of the sleeve, and an insulating sleeve is formed at the end, through which the pin penetrates, of the sleeve through injection molding. The high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor provided by the utility model has the advantages that the product structure is optimized, the production process is simplified, and the product performance is improved.
Description
Technical Field
The utility model relates to the technical field of temperature sensing, in particular to a high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor.
Background
In the prior art, a bullet-type temperature sensor is generally coated with epoxy resin or coated with epoxy resin, then the insulation of a sleeve is added at a welding point, and then the bullet-type temperature sensor is placed into a metal shell and is encapsulated and fixed by epoxy resin. Referring to fig. 1 and 2, since the epoxy resin 100 is in a liquid state, the coating process is not easy to control, and the coating thickness is inspected by visual inspection, which is likely to cause inconsistent or substandard insulation thickness, resulting in poor insulation and voltage resistance; and when the sleeve is added for insulation and re-encapsulation, the product is easy to have extremely many bubbles, and in addition, the glass shell of the sensing element is possibly provided with epoxy resin which is not wiped clean, so that the thermal conductivity of the epoxy resin is small, and the improvement of the response time of the product is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor, which optimizes the product structure, simplifies the production process and improves the product performance.
The utility model discloses a high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor, which adopts the technical scheme that:
the utility model provides a high-temperature high-pressure high-sensitivity sleeve injection type temperature sensor, includes sensing end and sleeve, sensing end includes sensing element and pin, sensing element locates telescopic one end, the pin passes and can be connected with the wire rod electricity that is located the sleeve other end from telescopic one end, the sleeve forms the insulating cover through moulding plastics in the one end that the pin was worn out.
Preferably, the insulating sleeve is oval.
Preferably, an annular groove is formed in the outer side of the insulating sleeve.
Preferably, the sensing element is an NTC resistor.
Preferably, the sleeve is provided with a cavity, the cavity comprises a sensing element cavity and a pin cavity communicated with the sensing element cavity, and the sensing element is arranged in the sensing element cavity and exposed out of the sensing element cavity.
Preferably, the pin cavity comprises a first pin cavity and a second pin cavity which are isolated from each other and respectively communicated with the sensing element cavity.
The utility model discloses a high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor, which has the beneficial effects that: the sensing element is arranged at one end of the sleeve, a pin penetrates through the sleeve to be electrically connected with the wire, and then the insulating sleeve is obtained at the tail end of the sleeve through injection molding. The sensing element and the pin as well as the conducting structure of the pin and the wire respectively adopt the sleeve and injection insulation protection, and the thickness of the insulation part can be kept consistent and controllable through a reasonable injection structure and a standard sleeve, so that the insulation and voltage resistance performance of a product is improved, the problem of response time is solved, the structure of the product is optimized, the production process is simplified, and the performance of the product is improved. And after the sensing end adopts the sleeve and reasonably performs injection insulation protection, the whole product can be controlled in size, only the conducting structure of the pin and the wire is covered, and the glass shell of the sensing element is well reserved and exposed through the sleeve, so that the subsequent process is simple, the production efficiency is high, and the performance of the product is well improved. Therefore, the insulating and voltage-resisting performance is excellent, consistent and reliable, the thermal response time of the product is fast, and the product is kept stable.
Drawings
FIG. 1 is a schematic view of a prior art epoxy over-thinned structure.
Fig. 2 is a schematic view of a prior art epoxy over-thick coating.
Fig. 3 is a partial structural schematic view of the high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor of the utility model.
FIG. 4 is a schematic view of a part of the installation structure of the high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor of the utility model.
Fig. 5 is a schematic structural view of a high-temperature, high-pressure, high-sensitivity sleeve injection molding type temperature sensor of the present invention.
Detailed Description
The utility model will be further elucidated and described with reference to the embodiments and drawings of the specification:
referring to fig. 3, 4 and 5, the high-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor comprises a sensing end 10 and a sleeve 20, wherein the sensing end 10 comprises a sensing element 12 and a pin 14. The sensing element 12 is arranged at one end of a sleeve 20, the pin 14 penetrates through one end of the sleeve 20 and can be electrically connected with a wire at the other end of the sleeve 20, and an insulating sleeve 30 is formed at the end, where the pin 14 penetrates out, of the sleeve 20 through injection molding.
The sensing element 12 is arranged at one end of the sleeve 20, and the pin 14 penetrates the sleeve 20 to be electrically connected with the wire, and then the insulating sleeve 30 is obtained at the tail end of the sleeve 20 through injection molding. The conducting structures of the sensing element 12 and the pin 14 and the conducting structures of the pin 14 and the wire are respectively protected by the sleeve 20 through injection molding insulation, and the thickness of the insulation part can be kept consistent and controllable through a reasonable injection molding structure and the standard sleeve 20, so that the insulation and voltage resistance performance of a product is improved, the problem of response time is solved, the structure of the product is optimized, the production process is simplified, and the performance of the product is improved. And after the sensing end adopts the sleeve 20 and reasonable injection insulation protection, the whole product has controllable size, only covers the conducting structure of the pin 14 and the wire, and well keeps and exposes the glass shell of the sensing element 12 through the sleeve 20, so that the subsequent process is simple, the production efficiency is high, and the performance of the product is well improved. Therefore, the insulating and voltage-resisting performance is excellent, consistent and reliable, the thermal response time of the product is fast, and the product is kept stable.
In this embodiment, the sensing element 12 is an NTC resistor.
In this embodiment, the insulating sheath 30 is oval. Specifically, since the metal shell is required to be placed later, and the metal shell is usually circular, the elliptical insulating sleeve 30 and the circular metal shell have enough space left for filling the subsequent potting adhesive after being matched. Further, an annular groove 32 is formed on the outer side of the insulating sleeve 30. Specifically, the annular groove 32 is at least provided with an upper annular groove and a lower annular groove, and the annular groove 32 is used for flowing in pouring sealant, so that the insulating sleeve 30 and the pouring sealant are fixed together, and the fixing is firmer.
In this embodiment, the sleeve 20 defines a cavity 22, the cavity 22 includes a sensing element cavity 24 and a pin cavity 26 communicating with the sensing element cavity 24, and the sensing element 12 is disposed in the sensing element cavity 24 and exposed to the sensing element cavity 24. Specifically, the front end of the sleeve 20 is retracted inwards to form a sensing element cavity 24 in which the sensing element 12 is placed, and after the bottom of the sensing element 12 is placed in the sensing element cavity 24, the risk of the element glass shell being broken due to excessive exposure and stress can be effectively reduced, and meanwhile, when the insulating sleeve 30 is injection-molded, the resistance glass shell exposed outside the sensing element cavity 24 can be better retained, and because the glass shell of the NTC resistor is the place which is most sensitive to temperature sensing, the reaction time can be effectively ensured to be shorter after the glass shell is exposed. While pin cavity 26 is used for pin 14 to pass through sleeve 20 and electrically connect to the wire, after which an insulating sleeve 30 is injection molded at the end of sleeve 20 and the excess of cavity 22 is filled. Further, the lead chamber 26 includes a first lead chamber 27 and a second lead chamber 28 isolated from each other and respectively communicating with the sensing element chamber 24. The provision of the first pin chamber 27 and the second pin chamber 28 facilitates the positive and negative wires of the pin 14 not to interfere with each other.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. The utility model provides a high-temperature high-pressure high-sensitivity sleeve injection type temperature sensor, its characterized in that includes sensing end and sleeve, sensing end includes sensing element and pin, sensing element locates telescopic one end, the pin passes and can be connected with the wire rod electricity that is located the sleeve other end from telescopic one end, the sleeve forms insulating cover through moulding plastics at the one end that the pin was worn out.
2. The injection molded temperature sensor of claim 1, wherein the insulating sleeve is oval in shape.
3. The injection-molded temperature sensor of the high-temperature high-pressure high-sensitivity sleeve of claim 2, wherein an annular groove is formed on the outer side of the insulating sleeve.
4. The injection molded temperature sensor of claim 1, wherein the sensing element is an NTC resistor.
5. The injection-molded temperature sensor of claim 1, wherein the sleeve defines a cavity, the cavity includes a sensing element cavity and a pin cavity in communication with the sensing element cavity, and the sensing element is disposed in the sensing element cavity and exposed out of the sensing element cavity.
6. The high temperature, high pressure, high sensitivity sleeve injection molded temperature sensor of claim 5 in which the pin chamber comprises a first pin chamber and a second pin chamber isolated from each other and in communication with the sensing element chamber, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122805316.6U CN216449049U (en) | 2021-11-16 | 2021-11-16 | High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122805316.6U CN216449049U (en) | 2021-11-16 | 2021-11-16 | High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216449049U true CN216449049U (en) | 2022-05-06 |
Family
ID=81352945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122805316.6U Active CN216449049U (en) | 2021-11-16 | 2021-11-16 | High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216449049U (en) |
-
2021
- 2021-11-16 CN CN202122805316.6U patent/CN216449049U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202720070U (en) | High-stability and rapid NTC temperature sensor | |
| CN216449049U (en) | High-temperature high-pressure high-sensitivity sleeve injection molding type temperature sensor | |
| CN210664795U (en) | NTC temperature sensor | |
| CN201247106Y (en) | Temperature sensor | |
| CN215677336U (en) | Single-ended NTC encapsulation temperature sensor that moulds plastics suitable for bullet head shell | |
| CN210837636U (en) | Pressure-resistant explosion-proof over-temperature protection type composite fuse | |
| CN204085708U (en) | For the temperature sensor of electric kettle | |
| CN203442571U (en) | Novel injection type lamp head | |
| CN107167260B (en) | Thermosensitive sensor | |
| CN215639836U (en) | Plastic package temperature sensor | |
| CN205192650U (en) | Temperature sampling subassembly and battery module thereof | |
| CN211234764U (en) | Temperature sensing device and temperature sensing assembly for intelligent toilet seat | |
| CN203772445U (en) | NTC temperature sensor of household washing machine | |
| CN210442290U (en) | Water content sensor | |
| CN111537095B (en) | Temperature sensor and manufacturing method thereof | |
| CN113465765A (en) | Plastic package temperature sensor and preparation method thereof | |
| CN201248151Y (en) | Composite electric heating tube | |
| CN220912486U (en) | Highly-sealed NTC temperature sensor with excellent waterproof performance | |
| CN206114139U (en) | Temperature -sensing probe | |
| CN206132261U (en) | Temperature sensor and bread machine | |
| CN213733161U (en) | Temperature-sensing line structure and hot runner system | |
| CN211013278U (en) | Digital temperature sensor | |
| CN217111219U (en) | NTC temperature sensor | |
| CN205403995U (en) | Temperature sensor support | |
| CN209783769U (en) | High waterproof easy installation type NTC temperature sensor for water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |