CN216770811U - Temperature sensor assembly - Google Patents
Temperature sensor assembly Download PDFInfo
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- CN216770811U CN216770811U CN202123212947.3U CN202123212947U CN216770811U CN 216770811 U CN216770811 U CN 216770811U CN 202123212947 U CN202123212947 U CN 202123212947U CN 216770811 U CN216770811 U CN 216770811U
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- temperature
- thermistor
- limiting
- temperature sensor
- sensor assembly
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Abstract
The utility model discloses a temperature sensor assembly, comprising: a thermistor element formed with a temperature-sensitive core thermistor head and a conductive pin extending from the temperature-sensitive core thermistor head; the base component is provided with a first limiting part for limiting the temperature sensing core thermistor head and a second limiting part for limiting the conductive pin, and the thermistor element is limited on the base component through assembly; the outer covering component is integrally molded by injection and covers the periphery of the base component, the temperature-sensitive core thermistor head is completely embedded in the outer covering component, and the conductive pins extend out of the outer covering component and form butt joint pin parts; the base component is provided with a plurality of injection molding positioning areas exposed out of the outer cover component. The temperature measurement device has good temperature measurement accuracy and good sealing performance.
Description
Technical Field
The present invention relates to a temperature sensor assembly.
Background
A temperature sensor (temperature transducer) refers to a sensor that senses temperature and converts it into a usable output signal. With the development of electronic technology, it becomes more important to control the battery temperature in electronic devices, and temperature sensors are widely used in various electronic devices to monitor the battery temperature. The sensor comprises a temperature sensing probe and a welding end connected by a lead. However, when the temperature sensor is assembled, the temperature sensing core thermistor head is not at the optimal temperature measuring point, which may cause the temperature measuring accuracy of the sensor to be insufficient, and in addition, in order to adapt to different complex environments, the periphery of the temperature sensor generally needs to be sealed.
Disclosure of Invention
The utility model aims to provide a novel temperature sensor assembly which has good temperature measurement accuracy and good sealing performance.
In order to achieve the purpose, the utility model provides the following technical scheme:
a temperature sensor assembly comprising:
a thermistor element formed with a temperature-sensitive core thermistor head and a conductive pin extending from the temperature-sensitive core thermistor head;
the base component is provided with a first limiting part for limiting the temperature sensing core thermistor head and a second limiting part for limiting the conductive pin, and the thermistor element is limited on the base component through assembly;
the outer covering component is integrally molded by injection and covers the periphery of the base component, the temperature-sensitive core thermistor head is completely embedded in the outer covering component, and the conductive pins extend out of the outer covering component and form butt joint pin parts;
the base component is provided with a plurality of injection molding positioning areas exposed out of the outer covering component.
Further, the first limiting part is a limiting groove structure formed by inwards recessing the base component.
Further, the base member includes a columnar body portion having a longitudinal shape, and the first stopper portion is formed at one end of the columnar body portion.
Further, the other end of the columnar body part is integrally connected with a transverse part, the second limiting part comprises a first limiting groove formed on the outer peripheral surface of the columnar body part, a second limiting groove formed on the outer surface of the transverse part and a notch hole part penetrating through the transverse part towards the direction far away from the temperature sensing core thermistor head, and the first limiting groove, the second limiting groove and the notch hole part are communicated with each other.
Further, the first limiting groove and the second limiting groove are groove structures formed by inwards recessing the outer surfaces of the corresponding columnar body part and the corresponding transverse part.
Furthermore, after the conductive pins are assembled and limited in the first limiting groove and the second limiting groove, a plurality of local positioning points are formed through hot melting.
Further, the base member and the outer cover member are both made of an insulating material, and the base member is superior in heat resistance to the outer cover member.
Further, when the thermistor element is assembled and limited on the base member, at least part of the temperature-sensitive core thermistor head protrudes out of the base member, and the conductive pin only protrudes out of the base member.
Further, the outer cover member covers the entire outer peripheral surface of the columnar body portion.
Further, the injection molding positioning area comprises a through hole structure or a blind hole structure which is formed on the transverse part and exposed out of the outer package component.
Compared with the prior art, the utility model has the beneficial effects that: the temperature measurement device has good temperature measurement accuracy and good sealing performance.
Drawings
FIG. 1 is a perspective view of a temperature sensor assembly of the present invention.
Fig. 2 is a perspective view of the temperature sensor assembly of fig. 1 from another angle.
Fig. 3 is a partially exploded perspective view of the temperature sensor assembly of the present invention, particularly illustrating the perspective of the outer cover member when detached from the base member, and illustrating the combination of the base member and the thermistor element.
Fig. 4 is a perspective view of fig. 3 from another angle.
Figure 5 is an exploded perspective view of the temperature sensor assembly of the present invention,
fig. 6 is a bottom view of the temperature sensor assembly of the present invention.
Fig. 7 is a cross-sectional view of the temperature sensor assembly of the present invention taken along line a-a of fig. 6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, a temperature sensor assembly according to the present invention is disclosed, which is mainly electrically connected to an area of a device requiring temperature detection, so as to detect the temperature with high precision. The temperature sensor assembly mainly comprises a thermistor element 1, a base member 2 for limiting the thermistor element 1 through assembly, and an outer covering member 3 which is formed through integral injection molding and correspondingly covers the periphery of the base member 2. Wherein the base member 2 is used for precise positioning of the thermistor element 1 and the cover member 3 is used for forming a protective casing around the thermistor element 1.
Specifically, the thermistor element 1 includes a temperature-sensing core thermistor head 11 and a conductive pin 12 extending from the temperature-sensing core thermistor head 11, the conductive pin 12 includes a butt-joint pin 121 protruding to the outside of the outer covering member 3, and the butt-joint pin 121 is used for electrically connecting with a conductive circuit of a device. The thermistor element 1 described in the present application is a sensor resistor, and the resistance value thereof can be changed with the change of Temperature, and specifically can be a Positive Temperature Coefficient thermistor (PTC thermistor, i.e., Positive Temperature Coefficient thermistor) and a Negative Temperature Coefficient thermistor (NTC thermistor, i.e., Negative Temperature Coefficient thermistor).
Referring to fig. 3 to 5, the base member 2 is formed with a first position-limiting portion 21 for limiting the temperature-sensitive core thermistor head 11 and a second position-limiting portion 22 for limiting the conductive pin 12, and the thermistor element 1 is assembled and limited on the base member 2. Specifically, the base member 2 includes a columnar body portion 201 elongated in a longitudinal direction, and a lateral portion 202 integrally connected to one free end of the columnar body portion 201. The first position-limiting portion 21 is formed at an end of the cylindrical body 201 away from the transverse portion 202. Specifically, the first position-limiting portion 21 is a position-limiting groove structure 212 formed by inward recessing of one end of the cylindrical body portion 201 away from the transverse portion 202. When the temperature-sensitive core thermistor head 11 is assembled and limited on the first limiting portion 21, at least a part of the temperature-sensitive core thermistor head 11 protrudes out of the base member 2.
The second position-limiting portion 22 includes a first position-limiting groove 2011 formed on the outer peripheral surface of the columnar body portion 201, a second position-limiting groove 2012 formed on the outer surface of the transverse portion 202, and a groove hole portion 2013 penetrating the transverse portion 202 in a direction away from the temperature sensing core thermistor head 11, and the first position-limiting groove 2011, the second position-limiting groove 2012 and the groove hole portion 2013 are communicated with each other. Specifically, the first and second retaining grooves 2011 and 2012 are recessed structures formed by the outer surfaces of the corresponding cylindrical body portion 201 and the corresponding transverse portion 202.
Referring to fig. 2 to 5, the manufacturing process of the temperature sensor assembly of the present application is as follows: firstly, the thermistor element 1 is assembled and fixed to the base member 2, specifically, the temperature-sensitive core thermistor head 11 is limited and fixed by the first limiting part 21; the conductive pin 12 is fixed by the second position-limiting portion 22 (specifically, the first position-limiting groove 2011, the second position-limiting groove 2012, and the slot portion 2013). Secondly, a plurality of local positioning points 4 are formed at the local positions of the first limiting groove 2011 and the second limiting groove 2012 through hot melting. Finally, an outer covering member 3 covering the periphery of the base member 2 is formed by integral injection molding, a plurality of injection molding positioning areas 20 exposed outside the outer covering member 3 are formed on the base member 2, and the injection molding positioning areas 20 are mainly used for accurately positioning the base member 2 provided with the thermistor element 1 when the outer covering member 3 is injection molded. In the present application, the temperature-sensitive core thermistor head 11 is completely embedded in the exterior member 3; the conductive pins 12 project out of the base member 2 only from the pin portion 121; the outer cover member 3 covers the entire outer peripheral surface of the columnar body portion 201, that is, the columnar body portion 201 is completely embedded in the outer cover member 3. Further, in the present application, it is preferable that the base member 2 and the outer cover member 3 are both made of an insulating material, and the base member 2 has a heat resistance superior to that of the outer cover member 3.
The injection positioning area 20 includes a planar structure directly exposed out of the outer cover member 3, and further includes a through hole structure or a blind hole structure (a through hole structure is used in the embodiment of the present application) formed on the transverse portion 202 and exposed out of the outer cover member 3. The injection molding positioning region 20 of the through-hole structure or the blind-hole structure enables more accurate positioning of the base member 2.
In the present application, the thermistor element 1 is assembled and fixed to the base member 2, and the outer cover member 3 is formed by integral injection molding, thereby forming a finished temperature sensor assembly. The thermistor element 1, particularly the temperature-sensitive core thermistor head 11, can be accurately positioned, which is advantageous for controlling the thickness uniformity of the temperature-sensitive core thermistor head 11 covered by the outer cover member 3 when the outer cover member 3 is formed by integral injection molding. Thereby improving the temperature measurement accuracy of the finished temperature sensor assembly and having good sealing performance.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A temperature sensor assembly, comprising:
a thermistor element formed with a temperature-sensitive core thermistor head and a conductive pin extending from the temperature-sensitive core thermistor head;
the base component is provided with a first limiting part for limiting the temperature sensing core thermistor head and a second limiting part for limiting the conductive pin, and the thermistor element is limited on the base component through assembly;
the outer covering component is integrally molded by injection and covers the periphery of the base component, the temperature-sensitive core thermistor head is completely embedded in the outer covering component, and the conductive pins extend out of the outer covering component and form butt joint pin parts;
the base component is provided with a plurality of injection molding positioning areas exposed out of the outer covering component.
2. The temperature sensor assembly of claim 1, wherein: the first limiting part is a limiting groove structure formed by inwards sinking the base component.
3. The temperature sensor assembly of claim 1 or 2, wherein: the base member includes a columnar body portion having a longitudinal shape, and the first stopper portion is formed at one end of the columnar body portion.
4. The temperature sensor assembly of claim 3, wherein: the other end of the columnar body part is integrally connected with a transverse part, the second limiting part comprises a first limiting groove formed on the outer peripheral surface of the columnar body part, a second limiting groove formed on the outer surface of the transverse part and a notch hole part penetrating through the transverse part towards the direction far away from the temperature sensing core thermistor head, and the first limiting groove, the second limiting groove and the notch hole part are communicated with each other.
5. The temperature sensor assembly of claim 4, wherein: the first limiting groove and the second limiting groove are groove structures formed by inwards sinking from the outer surfaces of the corresponding columnar body part and the corresponding transverse part.
6. The temperature sensor assembly of claim 5, wherein: after the conductive pins are assembled and limited in the first limiting groove and the second limiting groove, a plurality of local positioning points are formed through hot melting.
7. The temperature sensor assembly of claim 1 or 2, wherein: the base member and the outer cover member are both made of an insulating material, and the base member is superior in heat resistance to the outer cover member.
8. The temperature sensor assembly according to claim 1 or 2, wherein when the thermistor element is assembled and retained on the base member, the temperature-sensitive core thermistor head projects at least partially out of the base member, and the conductive pin projects out of the base member only by the pin portion.
9. The temperature sensor assembly of claim 3, wherein: the outer cover member covers the entire outer peripheral surface of the columnar body portion.
10. The assembly of claim 3, wherein the injection molding positioning region includes a through hole structure or a blind hole structure formed on the lateral portion and exposed outside the cover member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123212947.3U CN216770811U (en) | 2021-12-20 | 2021-12-20 | Temperature sensor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123212947.3U CN216770811U (en) | 2021-12-20 | 2021-12-20 | Temperature sensor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216770811U true CN216770811U (en) | 2022-06-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123212947.3U Active CN216770811U (en) | 2021-12-20 | 2021-12-20 | Temperature sensor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216770811U (en) |
-
2021
- 2021-12-20 CN CN202123212947.3U patent/CN216770811U/en active Active
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