CN204241125U - Temperature sensor - Google Patents
Temperature sensor Download PDFInfo
- Publication number
- CN204241125U CN204241125U CN201420735690.0U CN201420735690U CN204241125U CN 204241125 U CN204241125 U CN 204241125U CN 201420735690 U CN201420735690 U CN 201420735690U CN 204241125 U CN204241125 U CN 204241125U
- Authority
- CN
- China
- Prior art keywords
- web joint
- ntc resistance
- spring
- shell
- sleeve
- 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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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a kind of temperature sensor, comprise conductive shell, web joint and thermistor is provided with in housing, thermal paste is filled with in housing, housing comprises the shell and sleeve that are tightly connected, thermistor comprises a NTC resistance and the 2nd NTC resistance, web joint is between shell and sleeve, sleeve is provided with A, B, C contact pin, three contact pins are welded in web joint side, one NTC resistance and the 2nd NTC resistance are positioned at the opposite side of web joint, web joint is passed by guide rod and a NTC resistance welded in one end of A contact pin, also spring is provided with in housing, one end of C contact pin is welded with spring one end through web joint, the spring other end presses described 2nd NTC resistance and the 2nd NTC resistance is contacted with inner walls.Temperature sensor of the present utility model can output signal by two-wire, provides electric signal to respectively panel board and automobile ECU.
Description
Technical field
The utility model belongs to technical field of automobile components, especially a kind of temperature sensor for testing automobile engine coolant and lubricating oil, MAT change.
Background technology
Temperature sensor of the prior art comprises shell and is installed on the NTC thermistor in shell, NTC thermistor in shell is changed himself resistance value and produces electric signal by the temperature variation of perception engine coolant and lubricating oil, and by wire transmission to panel board, improve accurate information to human pilot by panel board, avoid indicating oven temp. of engine and damage.But owing to being only provided with a NTC thermistor in it in temperature sensor of the prior art, single line output signal can only being formed and be supplied to panel board, can not directly provide signal to automobile ECU.
Utility model content
In order to overcome the deficiencies in the prior art, the utility model provides a kind of reliable temperature sensor sensitiveer in prior art, this temperature sensor can output signal by two-wire, provides electric signal to respectively panel board and automobile ECU, has the advantage that signal transmission is sensitive more in time.
To achieve these goals, the technical solution adopted in the utility model is: a kind of temperature sensor, comprise conductive shell, web joint and thermistor is provided with in housing, thermal paste is filled with in housing, housing comprises the shell and sleeve that are tightly connected, it is characterized in that: described thermistor comprises a NTC resistance and the 2nd NTC resistance, web joint is between shell and sleeve, sleeve is provided with A, B, C contact pin, three contact pins are welded in web joint side, one NTC resistance and the 2nd NTC resistance are positioned at the opposite side of web joint, web joint is passed by guide rod and a NTC resistance welded in one end of described A contact pin, also spring is provided with in described housing, one end of C contact pin is welded with spring one end through web joint, the spring other end presses described 2nd NTC resistance and the 2nd NTC resistance is contacted with inner walls.
In said structure, form two bars transmission lines by two NTC resistance in this temperature sensor to be connected with panel board and automobile ECU respectively, A contact pin, B contact pin and a NTC resistance form the first output line road and are connected to automobile ECU, 2nd NTC resistance one end is connected with C contact pin, the other end and housing are connected to form secondary signal outlet line and are connected with panel board, contact pin is electrically connected with web joint, and web joint and spring are also for being electrically connected.
As further setting of the present utility model, described spring is arranged in shell and one end of spring abuts described web joint, and the other end of spring presses described 2nd NTC resistance, and described guide rod and a NTC resistance are arranged in spring bores.
In said structure, guide rod and a NTC resistance are all arranged in spring bores, save installing space, greatly reduce the volume of temperature sensor.
As further setting of the present utility model, described spring overcoat is provided with Teflon sleeve pipe.
In said structure, Furtulon sleeve pipe box is located at spring outside and plays insulating effect.
As further setting of the present utility model, described shell is provided with installation cavity, the openend of described installation cavity is provided with U-lag, the bottom surface of U-lag is communicated with installation cavity, described sleeve is inserted in U-lag, and described web joint is between sleeve and U-lag, web joint is provided with O shape rubber ring towards one end of U-lag bottom surface.
In said structure, between shell and sleeve, formed the installation cavity of sealing by O shape rubber ring.
As further setting of the present utility model, described outer shell outer wall is arranged with copper backing.
In said structure, because the red copper material of copper backing is softer, certain deformation can be there is when being subject to external force and compressing and make the more firm difficult drop-off of its mounting structure, form the firm installation structure of sealing gasket ring type.
Adopt such scheme, the utility model has the advantage of two-wire output signal, and have signal transmission rapid sensitive, compact conformation, volume is little, the advantage of sealing and anti-leakage.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model specific embodiment structural front view;
Accompanying drawing 2 is the utility model specific embodiment structure vertical view;
Accompanying drawing 3 is the utility model specific embodiment structure cut-open view;
Accompanying drawing 4 is the utility model specific embodiment spring structure front view;
Accompanying drawing 5 is the utility model specific embodiment spring structure left view;
Accompanying drawing 6 is the utility model specific embodiment surface structure schematic diagram;
To be the utility model C contact pin with the temperature of shell change to contrast with resistance (electric current embodies) accompanying drawing 7 schemes, and wherein panel board test voltage is 13.5V;
Accompanying drawing 8 is the schematic diagram of two bars outlet lines of the present utility model;
Accompanying drawing 9 is the syndeton schematic diagram of temperature sensor of the present utility model;
Housing 1, shell 11, installation cavity 111, U-lag 112, sleeve 12, thermistor 2, a NTC resistance 21, the 2nd NTC resistance 22, web joint 3, A contact pin 41, B contact pin 42, C contact pin 43, guide rod 5, spring 6, Teflon sleeve pipe 7, O shape rubber ring 8, copper washer 9.
Embodiment
Specific embodiment of the utility model is temperature sensor as shown in figs 1-9, comprise conductive shell 1, web joint 3 and thermistor 2 is provided with in housing 1, thermal paste is filled with in housing 1, as heat-conducting silicone grease, its temperature range is-30 ~ 150 DEG C, housing 1 comprises the shell 11 and sleeve 12 that are tightly connected, thermistor 2 comprises a NTC resistance 21 and the 2nd NTC resistance 22, web joint 3 is between shell 11 and sleeve 12, sleeve 12 is provided with A, B, C contact pin (41, 42, 43), three contact pins (41, 42, 43) web joint 3 side is welded in, one NTC resistance 21 and the 2nd NTC resistance 22 are positioned at the opposite side of web joint 3, one end of A contact pin 41 is welded with a NTC resistance 21 by guide rod 5 through web joint 3, spring 6 is also provided with in housing 1, one end of C contact pin 43 is welded with spring 6 one end through web joint 3, spring 6 other end presses the 2nd NTC resistance 22 and makes the 2nd NTC resistance 22 and housing 1 contact internal walls, this housing 1 is metal shell 1, this housing and the 2nd NTC resistance 22, current return is formed between C contact pin 43.Form two bars transmission lines by two NTC resistance 21,22 in this temperature sensor to be connected with panel board and automobile ECU respectively, A contact pin 41, B contact pin 42 and a NTC resistance 21 form the first output line road and are connected to automobile ECU, 2nd NTC resistance 22 one end is connected with C contact pin 43, and the other end and housing 1 are connected to form secondary signal outlet line and are connected with panel board.
Above-mentioned spring 6 is arranged in shell 11 and one end of spring 6 abuts web joint 3, and the other end of spring 6 presses the 2nd NTC resistance 22, and guide rod 5 and a NTC resistance 21 are arranged in spring bores.Guide rod 5 and a NTC resistance 21 are all arranged in spring bores, save installing space, greatly reduce the volume of temperature sensor.These spring 6 two ends are three circles and tightly, wherein small end polishes, in right-handed spiral configuration, when temperature range is-40 ~ 125 DEG C, and its resistance < 1 Ω; Its number of total coils is 30 circles, and number of active coils is 24 circles, is-40 ~ 125 DEG C in temperature, and after compression 6mm keeps 1,000 hours, elastic force meets P2=7 ± 2N.
Be arranged with Furtulon sleeve pipe 7 outside above-mentioned spring 6, Teflon sleeve pipe 7 is set in spring 6 outside and plays insulating effect.
Above-mentioned shell 11 is provided with installation cavity 111, the openend of installation cavity 111 is provided with U-lag 112, the bottom surface of U-lag 112 is communicated with installation cavity 111, sleeve 12 is inserted in U-shaped 112, and web joint 3 is between sleeve 12 and U-lag 112, web joint 3 is provided with O shape rubber ring 8 towards one end of U-lag 112 bottom surface, is formed the installation cavity 111 of sealing between shell 11 and sleeve 12 by O shape rubber ring 8.
Above-mentioned shell 11 outer wall has conical section, and this conical section is arranged with copper backing 9.Because the red copper material of copper backing 9 is softer, certain deformation can be there is when being subject to external force and compressing and make the more firm difficult drop-off of mounting structure between itself and conical section, form the firm installation structure of sealing gasket ring type.
The utility model has the advantage of two-wire output signal, and have signal transmission rapid sensitive, compact conformation, volume is little, the advantage of sealing and anti-leakage.The utility model is not limited to above-mentioned embodiment; persons skilled in the art are content disclosed in the utility model; other multiple embodiments can be adopted to implement of the present utility model; or every employing project organization of the present utility model and thinking; do simple change or change, all fall into protection domain of the present utility model.
Claims (5)
1. a temperature sensor, comprise conductive shell, web joint and thermistor is provided with in housing, thermal paste is filled with in housing, housing comprises the shell and sleeve that are tightly connected, it is characterized in that: described thermistor comprises a NTC resistance and the 2nd NTC resistance, web joint is between shell and sleeve, sleeve is provided with A, B, C contact pin, three contact pins are welded in web joint side, one NTC resistance and the 2nd NTC resistance are positioned at the opposite side of web joint, web joint is passed by guide rod and a NTC resistance welded in one end of described A contact pin, also spring is provided with in described housing, one end of C contact pin is welded with spring one end through web joint, the spring other end presses described 2nd NTC resistance and the 2nd NTC resistance is contacted with inner walls.
2. temperature sensor according to claim 1, it is characterized in that: described spring is arranged in shell and one end of spring abuts described web joint, the other end of spring presses described 2nd NTC resistance, and described guide rod and a NTC resistance are arranged in spring bores.
3. temperature sensor according to claim 1 and 2, is characterized in that: described spring overcoat is provided with Teflon sleeve pipe.
4. temperature sensor according to claim 1, it is characterized in that: described shell is provided with installation cavity, the openend of described installation cavity is provided with U-lag, the bottom surface of U-lag is communicated with installation cavity, described sleeve is inserted in U-lag, and described web joint is between sleeve and U-lag, web joint is provided with O shape rubber ring towards one end of U-lag bottom surface.
5. temperature sensor according to claim 1, is characterized in that: described outer shell outer wall is arranged with copper backing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735690.0U CN204241125U (en) | 2014-11-28 | 2014-11-28 | Temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420735690.0U CN204241125U (en) | 2014-11-28 | 2014-11-28 | Temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204241125U true CN204241125U (en) | 2015-04-01 |
Family
ID=52770606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420735690.0U Expired - Fee Related CN204241125U (en) | 2014-11-28 | 2014-11-28 | Temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204241125U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546350A (en) * | 2016-10-22 | 2017-03-29 | 钟贵洪 | A kind of new automobile cooling-water temperature transmitter |
| CN106768430A (en) * | 2017-03-27 | 2017-05-31 | 惠州市物联微电子有限公司 | Novel intelligent temperature collecting device |
-
2014
- 2014-11-28 CN CN201420735690.0U patent/CN204241125U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106546350A (en) * | 2016-10-22 | 2017-03-29 | 钟贵洪 | A kind of new automobile cooling-water temperature transmitter |
| CN106768430A (en) * | 2017-03-27 | 2017-05-31 | 惠州市物联微电子有限公司 | Novel intelligent temperature collecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20201128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |