CN212432371U - Temperature sensor - Google Patents
Temperature sensor Download PDFInfo
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- CN212432371U CN212432371U CN202020583408.7U CN202020583408U CN212432371U CN 212432371 U CN212432371 U CN 212432371U CN 202020583408 U CN202020583408 U CN 202020583408U CN 212432371 U CN212432371 U CN 212432371U
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- thermistor
- temperature sensor
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- body portion
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Abstract
The utility model provides a temperature sensor, it includes terminal, sleeve pipe, arranges the intraductal heat conduction resin of sleeve and thermistor subassembly in. The thermistor assembly includes a thermistor, a first leg connecting the thermistor to a terminal, and a second leg connecting the thermistor to the terminal. The first leg portion comprises a first main body portion connected with the thermistor, a first inclined portion inclined to one side from the first main body portion and a first end portion formed by upward extending from the first inclined portion, and a first bending area is arranged between the first main body portion and the first inclined portion. The second leg portion comprises a second main body portion connected with the thermistor, a second inclined portion inclined to the other side from the second main body portion and a second end portion formed by upward extending from the second inclined portion, and a second bending area is arranged between the second main body portion and the second inclined portion. The temperature sensor also comprises a fixing block which covers the first bending area and the second bending area. The utility model provides a temperature sensor can avoid the emergence of short circuit.
Description
Technical Field
The utility model relates to a temperature sensor, especially a temperature sensor with thermistor.
Background
The conventional temperature sensor includes a terminal, a sleeve, a heat conductive resin disposed in the sleeve, and a thermistor assembly. The thermistor assembly includes a thermistor, a first leg connecting the thermistor to a terminal, and a second leg connecting the thermistor to the terminal. The first leg portion is provided with a first bending area, and the second leg portion is provided with a second bending area. When the thermistor is inserted into the heat conductive resin, the heat conductive resin generates a resistance to the thermistor, thereby allowing the first bending region and the second bending region to be easily deformed. Since the first and second bending regions are closer together, the touch is likely to occur to cause a short circuit.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can avoid taking place temperature sensor of short circuit.
According to an aspect of the present invention, there is provided a temperature sensor, which includes a terminal, a sleeve, a heat conductive resin disposed in the sleeve, and a thermistor assembly. The thermistor assembly includes a thermistor, a first leg connecting the thermistor to the terminal, and a second leg connecting the thermistor to the terminal, the thermistor being disposed within a thermally conductive resin. The first leg portion comprises a first main body portion connected with the thermistor, a first inclined portion inclined to one side from the first main body portion and a first end portion formed by upward extending from the first inclined portion, and a first bending area is arranged between the first main body portion and the first inclined portion. The second leg portion comprises a second main body portion connected with the thermistor, a second inclined portion inclined to the other side from the second main body portion and a second end portion formed by upward extending from the second inclined portion, and a second bending area is arranged between the second main body portion and the second inclined portion. The temperature sensor also comprises a fixing block which covers the first bending area and the second bending area.
Preferably, the fixing block is fixed to the first leg portion and the second leg portion by injection molding.
Preferably, the first leg portion and the second leg portion are symmetrically disposed about a central axis of the thermistor.
Preferably, it further comprises a plug to which the terminal is fixed and a connecting member connecting the plug to the sleeve, one end of the terminal projecting into the sleeve.
Preferably, the terminal is provided with a land, the first leg portion and the second leg portion are fixed to the land of the terminal by welding, and the thermally conductive resin covers the land.
Preferably, an X-Y-Z coordinate axis is defined, a Z-axis direction is parallel to a direction of a central axis of the thermistor, the first inclined portion and the second inclined portion are located in an X-Z plane, the first main body portion and the second main body portion are located in a Y-Z plane, and the first main body portion and the second main body portion are bent.
Preferably, the first main body portion includes a first section parallel to the Z-axis direction and a second section extending obliquely upward from the first section, the second main body portion includes a third section parallel to the Z-axis direction and a fourth section extending obliquely upward from the third section, and the first main body portion and the second main body portion are overlapped in the Y-Z plane.
Preferably, a third bending area is arranged between the first end portion and the first inclined portion, a fourth bending area is arranged between the second end portion and the second inclined portion, and the third bending area and the fourth bending area are located on the outer side of the fixing block.
Preferably, the first end portion and the second end portion are parallel to a central axis of the thermistor.
Preferably, the temperature sensor is an EGR temperature sensor.
The utility model provides a temperature sensor is through setting up the fixed block, fixes thermistor's first shank and the district of bending of second shank, avoids first shank and second shank to touch because of taking place to warp and is in the same place.
Drawings
Fig. 1 is an exploded perspective view of the temperature sensor of the present invention.
Fig. 2 is a cross-sectional view of the temperature sensor of the present invention.
Fig. 3 is a front view of a thermistor assembly with a fixing hole.
Fig. 4 is a perspective view of a thermistor assembly.
Fig. 5 is a front view of the thermistor assembly.
Fig. 6 is a side view of a thermistor assembly.
Detailed Description
Referring to fig. 1 and 2, the present invention discloses a temperature sensor 100, which includes a first assembly 1, a sleeve 3, and a connecting member 2 connecting the sleeve 3 to the first assembly 1. The first assembly 1 includes a plug 11, a terminal 12 fixed to the plug 11, and a holder 13 for fixing the terminal 12. The terminal 12 is composed of two pieces. In order to prevent the terminals 12 outside the plug 11 from touching and shorting together, the terminals 12 are fixed by the retainer 13. Preferably, the plug 11 and the retainer 13 are injection molded to secure the terminal 12. In other embodiments, the plug 11 and the retainer 13 may also be assembled to fix the terminal 12. In order to achieve a sealing effect, a sealing ring 6 is arranged between the plug connector 11 and the connecting piece 2. The temperature sensor 100 is also provided with a gasket 7, a thermistor assembly 4, and a heat conductive resin 5.
As further shown in fig. 3-6, the thermistor assembly 4 includes a thermistor 41, a first leg 42 connecting the thermistor 41 to the terminal 12, and a second leg 43 connecting the thermistor 41 to the terminal 12. The thermistor 41 is disposed in the heat conductive resin 5. The first leg portion 42 includes a first main body portion 421 connected to the thermistor 41, a first inclined portion 422 inclined to one side from the first main body portion 421, and a first end portion 423 formed to extend upward from the first inclined portion 422. A first bending region 424 is disposed between the first main body 421 and the first inclined portion 422. The second leg portion 43 includes a second main body portion 431 connected to the thermistor 41, a second inclined portion 432 inclined from the second main body portion 431 to the other side, and a second end portion 433 formed to extend upward from the second inclined portion 432. A second bending region 434 is provided between the second main body portion 431 and the second inclined portion 432. The temperature sensor further includes a mounting block 44 that encases the first bending region 424 and the second bending region 434. When the thermistor 41 is inserted into the heat conductive resin 5, the heat conductive resin 5 generates a resistance to the thermistor 41, so that the first bending region 424 and the second bending region 434 are easily elastically deformed. Due to the close proximity of the first bending region 424 and the second bending region 434, the first bending region 424 and the second bending region 434 can be prevented from touching together by providing the fixing block 44 for fixing the first bending region 424 and the second bending region 434.
The fixing block 44 may be fixed to the first leg 42 and the second leg 43 by injection molding. In other manners, the fixing block 44 may be fixed to the first leg 42 and the second leg 43 by assembling. The ends of the first leg 42 and the second leg 43 are exposed to the outside of the fixing block 44, and the first leg 42 and the second leg 43 of the thermistor assembly 4 are fixed to the terminal 12. The terminal 12 is provided with a land 121. The first leg portion 42 and the second leg portion 43 are fixed to the land 121 of the terminal 12 by means of soldering. The thermally conductive resin 5 covers the lands 121.
For convenience of description, X-Y-Z coordinate axes are defined, wherein the Z-axis direction is parallel to the direction of the central axis L of the thermistor 41. The first and second slope parts 422 and 432 are located in the X-Z plane, the first and second main body parts 421 and 431 are located in the Y-Z plane, and the first and second main body parts 421 and 431 are bent. The first main body 421 includes a first segment 4211 parallel to the Z-axis direction and a second segment 4212 extending obliquely upward from the first segment 4211. The second body portion 431 includes a third section 4311 parallel to the Z-axis direction and a fourth section 4312 extending obliquely upward from the third section 4311. The first body portion 421 and the second body portion 431 overlap in the Y-Z plane.
A third bending region 425 is disposed between the first end portion 423 and the first inclined portion 422, and a fourth bending region 435 is disposed between the second end portion 433 and the second inclined portion 432. The third 425 and fourth 435 bending zones are located outside the fixing block 44. Due to the large distance between third bending zone 425 and fourth bending zone 435, even if this zone is deformed, it is difficult to touch together. The third bending region 425 and the fourth bending region 435 are disposed outside the fixing hole 44, so that the material of the fixing block 44 can be saved.
The first end portion 423 and the second end portion 433 are parallel to the central axis L of the thermistor 41. The first leg portion 42 and the second leg portion 43 are disposed symmetrically about the center axis L of the thermistor 41.
The Temperature sensor is an EGR (Exhaust Gas Recirculation) Temperature sensor, and the thermistor 41 is an NTC (Negative Temperature Coefficient) thermistor. In other embodiments, the Temperature sensor 100 may be used in other applications, and the thermistor 41 may be a PTC (Positive Temperature Coefficient) type thermistor.
It will be apparent to those skilled in the art that various modifications and variations can be made to the above-described exemplary embodiments of the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (10)
1. A temperature sensor includes a terminal (12), a bushing (3), a heat conductive resin (5) disposed in the bushing (3), and a thermistor assembly (4), the thermistor assembly (4) includes a thermistor (41), a first leg portion (42) connecting the thermistor (41) to the terminal (12), and a second leg portion (43) connecting the thermistor (41) to the terminal (12), the thermistor (41) is disposed in the heat conductive resin (5), the first leg portion (42) includes a first main body portion (421) connected to the thermistor (41), a first inclined portion (422) inclined to one side from the first main body portion (421), and a first end portion (423) formed by extending upward from the first inclined portion (422), a first bending region (424) is provided between the first main body portion (421) and the first inclined portion (422), the second leg portion (43) comprises a second main body portion (431) connected with the thermistor (41), a second inclined portion (432) inclined to the other side from the second main body portion (431), and a second end portion (433) formed by upward extending from the second inclined portion (432), a second bending area (434) is arranged between the second main body portion (431) and the second inclined portion (432), and the temperature sensor is characterized by further comprising a fixing block (44) covering the first bending area (424) and the second bending area (434).
2. Temperature sensor according to claim 1, in which the fixing block (44) is fixed to the first leg (42) and the second leg (43) by means of injection moulding.
3. The temperature sensor according to claim 1, wherein the first leg (42) and the second leg (43) are symmetrically arranged about a central axis (L) of the thermistor (41).
4. A temperature sensor according to claim 1, further comprising a plug (11) and a connector (2) connecting the plug (11) to the sleeve (3), the terminal (12) being fixed to the plug (11), one end of the terminal (12) projecting into the sleeve (3).
5. The temperature sensor according to claim 1, wherein the terminal (12) is provided with a land (121), the first leg portion (42) and the second leg portion (43) are fixed to the land (121) of the terminal (12) by welding, and the heat conductive resin (5) covers the land (121).
6. The temperature sensor according to claim 1, wherein an X-Y-Z coordinate axis is defined, a Z-axis direction is parallel to a direction of a central axis (L) of the thermistor (41), the first inclined portion (422) and the second inclined portion (432) are located in an X-Z plane, the first main body portion (421) and the second main body portion (431) are located in a Y-Z plane, and the first main body portion (421) and the second main body portion (431) are bent.
7. The temperature sensor according to claim 6, wherein the first body portion (421) includes a first segment (4211) parallel to the Z-axis direction and a second segment (4212) extending obliquely upward from the first segment (4211), and the second body portion (431) includes a third segment (4311) parallel to the Z-axis direction and a fourth segment (4312) extending obliquely upward from the third segment (4311), and the first body portion (421) and the second body portion (431) are overlapped in the Y-Z plane.
8. The temperature sensor according to claim 1, characterized in that a third bending zone (425) is provided between the first end portion (423) and the first inclined portion (422), a fourth bending zone (435) is provided between the second end portion (433) and the second inclined portion (432), and the third bending zone (425) and the fourth bending zone (435) are located outside the fixing block (44).
9. The temperature sensor according to claim 1, wherein the first end portion (423) and the second end portion (433) are parallel to a central axis (L) of the thermistor (41).
10. The temperature sensor of claim 1, wherein the temperature sensor is an EGR temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583408.7U CN212432371U (en) | 2020-04-17 | 2020-04-17 | Temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020583408.7U CN212432371U (en) | 2020-04-17 | 2020-04-17 | Temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212432371U true CN212432371U (en) | 2021-01-29 |
Family
ID=74298201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020583408.7U Active CN212432371U (en) | 2020-04-17 | 2020-04-17 | Temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212432371U (en) |
-
2020
- 2020-04-17 CN CN202020583408.7U patent/CN212432371U/en active Active
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