CN216309255U - Do benefit to high leakproofness temperature sensor of measurement - Google Patents
Do benefit to high leakproofness temperature sensor of measurement Download PDFInfo
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- CN216309255U CN216309255U CN202122531252.5U CN202122531252U CN216309255U CN 216309255 U CN216309255 U CN 216309255U CN 202122531252 U CN202122531252 U CN 202122531252U CN 216309255 U CN216309255 U CN 216309255U
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- thermistor
- hexagonal copper
- temperature sensor
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Abstract
The utility model relates to a high-tightness water temperature sensor beneficial to measurement, which is provided with a plastic shell, wherein a contact pin for transmitting signals is arranged in the plastic shell, the lower end of the plastic shell is hermetically connected with a hexagonal copper base, a thermistor for detecting water temperature is arranged in an inner cavity of the hexagonal copper base, the upper end of the thermistor is connected with the lower end of the contact pin, a fluorine rubber sealing ring is arranged between the lower end surface of the plastic shell and the upper end surface of the inner cavity of the hexagonal copper base, and a sealing gasket is arranged on the bottom surface of a hexagon head of the hexagonal copper base. The temperature sensor adopts the hexagonal copper base structure, is convenient to install and good in installation stability, and can transmit the temperature of the cooling liquid to the sensing chip more quickly by utilizing the characteristic of better heat conductivity of the copper material, so that the accuracy and response time of temperature detection are improved, and the sealing performance of the whole sensor is better improved due to the matching of the fluorine rubber sealing ring and the sealing washer.
Description
Technical Field
The utility model relates to the technical field of sensors, in particular to a high-tightness water temperature sensor which is applied to automobile coolant detection and is beneficial to measurement.
Background
At present, the water temperature sensor is widely applied to the field of automobile cooling liquid detection, and the pressure is applied to the heat sensitive sheet through an internal spring to ensure that the heat sensitive sheet is in contact with the bonding of the shell, and meanwhile, the heat sensitive sheet is connected with a transmission plug through a lead and then a temperature signal is output through the plug. The water temperature sensor with the structure has high requirements on the flexibility and the temperature resistance of the lead because the lead is easy to break. In addition, the water temperature sensor with the structure not only needs to ensure that the thermistor is reliably contacted with the shell, but also needs to avoid the situation that the thermistor is crushed due to overlarge pressure, so that the requirement on the spring is strict. In the actual manufacturing process, the thermistor is in poor contact with the ground frequently, no signal output is caused, the reliability is poor, and the requirements of automobile manufacturers cannot be met.
In the existing water temperature sensor structure, the connecting process of the thermistor and the sensor pin is more complicated, the production automation is inconvenient, the stability is not high after the integral assembly, the sealing performance is not enough, and the accuracy and the response time of the temperature detection cannot completely meet the detection use requirements of the automobile coolant.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: in order to overcome the defects in the prior art, the utility model provides the high-tightness water temperature sensor which improves the whole tightness, simplifies the assembly process and is beneficial to measurement.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a do benefit to high leakproofness temperature sensor of measuring, has plastic housing, is equipped with transmission signal's contact pin in the plastic housing, plastic housing lower extreme sealing connection have a hexagonal copper base, be located the inner chamber that hexagonal copper base has and be equipped with the thermistor of surveying the temperature, the thermistor upper end is connected with the contact pin lower extreme, be equipped with the fluorine rubber sealing washer under the plastic housing between terminal surface and the hexagonal copper base inner chamber up end, the hexagon head bottom surface of hexagonal copper base is equipped with seal ring.
In order to improve the thermal induction sensitivity, the bottom of the inner cavity of the hexagonal copper base is internally provided with heat-conducting silica gel, and a detection head of the thermistor is positioned in the heat-conducting silica gel.
In order to facilitate the connection between the thermistor and the sensor contact pin, the bottom end of the contact pin is provided with a guide notch, and the upper end of the thermistor is inserted into the guide notch in a positioning way.
The utility model has the beneficial effects that: the temperature sensor adopts the hexagonal copper base structure, is convenient to install and good in installation stability, and can transmit the temperature of the cooling liquid to the sensing chip more quickly by utilizing the characteristic of better heat conductivity of the copper material, so that the accuracy and response time of temperature detection are improved, and the sealing performance of the whole sensor is better improved due to the matching of the fluorine rubber sealing ring and the sealing washer.
Drawings
The utility model is further described with reference to the following figures and embodiments.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of an assembly structure of the thermistor and the contact pin according to the present invention.
In the figure: 1. the thermal resistor comprises a plastic shell, 2 parts of contact pins, 3 parts of a hexagonal copper base, 4 parts of a thermistor, 5 parts of a fluororubber sealing ring, 6 parts of a sealing washer, 7 parts of heat-conducting silica gel and 8 parts of a guide notch.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
A do benefit to high leakproofness temperature sensor of measuring as shown in figure 1, figure 2, has plastic housing 1, is equipped with transmission signal's contact pin 2 in the plastic housing 1, 1 lower extreme sealing connection of plastic housing 3, hexagonal copper base 3 has integrateed inductive head, connecting portion and the hexagon nut of sensor, and its bottom end wall thickness design is 1mm, compares thinly with former product, because the heat conductivility of copper material is better, and thickness is thinner, can give induction chip with the better transmission of the temperature of coolant liquid to the degree of accuracy and the response time of temperature detection have been improved.
The inner cavity that hexagonal copper base 3 had is equipped with thermistor 4 of surveying the temperature, and hexagonal copper base 3's inner chamber bottom embeds has heat conduction silica gel 7, and thermistor 4's detecting head is located heat conduction silica gel 7.
The upper end of the thermistor 4 is connected with the lower end of the contact pin 2, a guide notch 8 is formed in the bottom end of the contact pin 2, and the upper end of the thermistor 4 is inserted into the guide notch 8 in a positioning mode. Like this through the effect of direction notch 8, convenient thermistor 4's location when the welding simplifies the process, and reduce cost is more convenient for automated production.
A fluororubber sealing ring 5 is arranged between the lower end face of the plastic shell 1 and the upper end face of the inner cavity of the hexagonal copper base 3, the upper end face of the hexagonal copper base 3 is turned over and compressed with the bottom end of the plastic shell 1 through riveting technology to form a closed whole, and the sealing performance of the whole sensor is improved by matching with the fluororubber sealing ring 5.
Hexagonal head bottom surface of hexagonal copper base 3 is equipped with seal ring 6, and hexagonal head compresses tightly seal ring 6 after the sensor installation, has improved connection stability, and cooperation fluororubber sealing washer 5 makes the seal of sensor obtain better promotion.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. The utility model provides a do benefit to high leakproofness temperature sensor of measurement, has plastic housing (1), is equipped with transmission signal's contact pin (2) in plastic housing (1), characterized by: the lower end of the plastic shell (1) is hermetically connected with a hexagonal copper base (3), an inner cavity formed by the hexagonal copper base (3) is internally provided with a thermistor (4) for detecting water temperature, the upper end of the thermistor (4) is connected with the lower end of the contact pin (2), a fluororubber sealing ring (5) is arranged between the lower end face of the plastic shell (1) and the upper end face of the inner cavity of the hexagonal copper base (3), and a sealing gasket (6) is arranged on the bottom face of a hexagonal head of the hexagonal copper base (3).
2. The high-sealability water temperature sensor for facilitating measurement of claim 1, wherein: the inner chamber bottom of hexagonal copper base (3) built-in have heat conduction silica gel (7), the detecting head of thermistor (4) is located heat conduction silica gel (7).
3. The high-sealability water temperature sensor for facilitating measurement of claim 1, wherein: the bottom end of the contact pin (2) is provided with a guide notch (8), and the upper end of the thermistor (4) is inserted into the guide notch (8) in a positioning way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531252.5U CN216309255U (en) | 2021-10-19 | 2021-10-19 | Do benefit to high leakproofness temperature sensor of measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122531252.5U CN216309255U (en) | 2021-10-19 | 2021-10-19 | Do benefit to high leakproofness temperature sensor of measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216309255U true CN216309255U (en) | 2022-04-15 |
Family
ID=81115323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122531252.5U Active CN216309255U (en) | 2021-10-19 | 2021-10-19 | Do benefit to high leakproofness temperature sensor of measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216309255U (en) |
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2021
- 2021-10-19 CN CN202122531252.5U patent/CN216309255U/en active Active
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