CN201837482U - Cooling fluid temperature sensor - Google Patents
Cooling fluid temperature sensor Download PDFInfo
- Publication number
- CN201837482U CN201837482U CN2010205653317U CN201020565331U CN201837482U CN 201837482 U CN201837482 U CN 201837482U CN 2010205653317 U CN2010205653317 U CN 2010205653317U CN 201020565331 U CN201020565331 U CN 201020565331U CN 201837482 U CN201837482 U CN 201837482U
- Authority
- CN
- China
- Prior art keywords
- thermistor
- assembly
- temperature sensor
- cooling fluid
- end button
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a cooling fluid temperature sensor which belongs to the technical field of temperature sensors and mainly solves the problems of slow heat conduction, long response time, low accuracy, complicated assembly process and high cost of the existing integral encapsulation technology. The cooling fluid temperature sensor is mainly characterized by comprising a gasket, a sealing washer, a shell, a thermistor, an inserting piece and an end button assembly formed in an injection molding manner by the inserting piece through a mould, wherein the end button assembly is welded with the thermistor to form an end button thermistor assembly; heat conducting epoxy resin is arranged between the shell and the thermistor; and the end button assembly is connected with the shell through rolloff riveting. The cooling fluid temperature sensor has the characteristics of simple structure, low cost, high accuracy and no damage to the appearance, and is mainly used for detecting the temperature of a water tank of an automobile engine with plus Euro III emission.
Description
Technical field
The utility model belongs to the temperature sensor technical field.Be specifically related to a kind of sensor that is used to measure the radiator of car engine temperature of discharging more than three in Europe.
Background technology
At present, the overall package of the cooling-water temperature transmitter on the motor car engine generally adopts the mode of copper shell to encapsulate, pass through punch riveting together between terminal and the housing, its weak point is a punch riveting technogenic influence sensor outward appearance, cause stress to concentrate, copper shell is caused damage, reduce sealing effectiveness; Conventional cooling-water temperature transmitter heat conduction is by copper shell heat conduction, and its weak point is that heat conduction is slow, and the response time is long, and precision is low.In addition, the thermistor of conventional temperature sensor links together by spring compression housing, terminal, and its weak point is that assemble flow is loaded down with trivial details, cost height (part that needs is many).
Summary of the invention
The purpose of this utility model be exactly to provide at above-mentioned weak point a kind of simple in structure, cost is low, precision is high, the undamaged cooling-water temperature transmitter of outward appearance.
Technical solution of the present utility model is: a kind of cooling-water temperature transmitter, comprise pad, packing washer, housing, thermistor, inserted sheet, and it is characterized in that: also comprise by the terminal assembly of inserted sheet by mold injection molding; The terminal assembly becomes terminal thermistor assembly with the thermistor welding structure; Add thermal conductivity epoxy resin between housing and the thermistor; It between terminal assembly and the housing rolling riveted joint.
Terminal assembly described in the technical solution of the present utility model is to adopt the PA66 GF30 of Du Pont injection molding.
Thermistor described in the technical solution of the present utility model is a high precision NTC bar shaped thermistor.
Thermal conductivity epoxy resin described in the technical solution of the present utility model is HT1101 single component heat-conducting silicone grease epoxy resin.
The utility model abandoned traditional impact style because the encapsulation of terminal assembly and housing adopts rolling to revolve riveting, overcome the deficiency of the appearance poor that punching press causes, easy damaged, poor stability.Adding epoxy resin between thermistor and housing, to have overcome air heat conduction slow, response time, the low deficiency of long precision.Thermistor and inserted sheet welded together overcome the problem that assemble flow is loaded down with trivial details, cost is high (part that needs is many).The utlity model has simple in structure, cost is low, precision is high, the undamaged characteristics of outward appearance.The utility model is mainly used in measures the radiator of car engine coolant temperature that discharge more than three in Europe.
Description of drawings
Fig. 1 is a contour structures synoptic diagram of the present utility model.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the vertical view of Fig. 1.
Fig. 4 is an inner structure diagrammatic cross-section of the present utility model.
Fig. 5 is a terminal thermistor assembly of the present utility model.
Embodiment
Extremely shown in Figure 5 as Fig. 1.Cooling-water temperature transmitter is made up of terminal assembly 1, inserted sheet 2, packing washer 3, housing 4, pad 5 and thermistor 6; By mold injection molding, terminal thermistor assembly has terminal assembly and thermistor to weld together to terminal assembly 1 by inserted sheet 2, and its material that adopts is the PA66 GF30 of Du Pont.The part integral surface adopts the inferior optical processing of sandblast, grey.
Wherein the inserted sheet 2 of thermistor 6 with the terminal assembly welded together, filling heat-conductive epoxy resin in housing 4, terminal thermistor assembly insert in the housing 4, and terminal thermistor assembly 7 and housing 4 rivet together by rolling.In housing 4, add thermal conductivity epoxy resin and increase temperature conductivity, shortened the response time of sensor.Thermal conductivity epoxy resin is HT1101 single component heat-conducting silicone grease epoxy resin.Adopt the rolling to revolve riveting, overcome the problem of the appearance poor that punching press causes, easy damaged, poor stability.Thermistor 6 is a high precision NTC bar shaped thermistor.
Claims (4)
1. a cooling-water temperature transmitter comprises pad (5), packing washer (3), housing (4), thermistor (6), inserted sheet (2), it is characterized in that: also comprise by the terminal assembly (1) of inserted sheet (2) by mold injection molding; Terminal assembly (1) becomes terminal thermistor assembly with thermistor (6) welding structure; Add thermal conductivity epoxy resin between housing (4) and the thermistor (6); It between terminal assembly (1) and the housing (4) the rolling riveted joint.
2. a kind of cooling-water temperature transmitter according to claim 1 is characterized in that: described mould terminal assembly (1) is to adopt the PA66 GF30 of Du Pont injection molding.
3. a kind of cooling-water temperature transmitter according to claim 1 and 2 is characterized in that: described thermistor (6) is a high precision NTC bar shaped thermistor.
4. cooling-water temperature sensor according to claim 1 is characterized in that: described thermal conductivity epoxy resin is HT1101 single component heat-conducting silicone grease epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205653317U CN201837482U (en) | 2010-10-19 | 2010-10-19 | Cooling fluid temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205653317U CN201837482U (en) | 2010-10-19 | 2010-10-19 | Cooling fluid temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201837482U true CN201837482U (en) | 2011-05-18 |
Family
ID=44007591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205653317U Expired - Fee Related CN201837482U (en) | 2010-10-19 | 2010-10-19 | Cooling fluid temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201837482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645008A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Pressure sensor shell structure |
| CN107449518A (en) * | 2017-08-30 | 2017-12-08 | 东风汽车电子有限公司 | A kind of commercial car environment temperature sensor |
-
2010
- 2010-10-19 CN CN2010205653317U patent/CN201837482U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645008A (en) * | 2013-11-27 | 2014-03-19 | 芜湖通和汽车管路系统有限公司 | Pressure sensor shell structure |
| CN103645008B (en) * | 2013-11-27 | 2016-04-06 | 芜湖致通汽车电子有限公司 | A kind of pressure sensor shell structure |
| CN107449518A (en) * | 2017-08-30 | 2017-12-08 | 东风汽车电子有限公司 | A kind of commercial car environment temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Free format text: FORMER NAME: DONGFENG XIANGFAN INSTRUMENT SYSTEMS CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 441001 No. 227 East Daqing Road, Hubei, Xiangyang Patentee after: DONGFENG AUTOMOBILE ELECTRONICS CO., LTD. Address before: 441001 No. 227 East Daqing Road, Hubei, Xiangfan Patentee before: Dongfeng Xiangfan Instrument Systems Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20161019 |