CN103471739A - Improved temperature sensor for vehicle - Google Patents
Improved temperature sensor for vehicle Download PDFInfo
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- CN103471739A CN103471739A CN 201310408228 CN201310408228A CN103471739A CN 103471739 A CN103471739 A CN 103471739A CN 201310408228 CN201310408228 CN 201310408228 CN 201310408228 A CN201310408228 A CN 201310408228A CN 103471739 A CN103471739 A CN 103471739A
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- cylindrical hole
- plug
- connecting portion
- wall
- temperature sensor
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Abstract
The invention discloses an improved temperature sensor for a vehicle. The improved temperature sensor for the vehicle comprises a cushion piece, a plug, a shell, a sealed cushion ring and a thermistor, contact pins are arranged in the plug, and the thermistor is welded to the contact pins. A stair-hole-shaped cavity is formed inside the shell, the stair-hole-shaped cavity is composed of an upper cylindrical hole and a lower cylindrical hole, the diameter of the upper cylindrical hole is larger than the diameter of the lower cylindrical hole, inner threads are formed in the inner wall of the upper cylindrical hole, a circular cushion block is connected to the inner wall of the upper cylindrical wall in a screw-joint mode, the plug is fixed to the top end of the shell, a spring is inserted in the upper cylindrical hole in a sleeved mode, and the thermistor is inserted in the spring, the circular cushion block and the lower cylindrical hole sequentially from top to bottom in a sleeved mode, and one end of the spring is connected to the plug in a force-applying mode, and the other end of the spring is connected to the circular cushion block in a force-applying mode. The improved temperature sensor for the vehicle is simple in structure, low in cost and high in accuracy, meanwhile, due to the fact that the adjustable circular cushion block is arranged in the upper cylindrical hole in the shell, springs with different elasticity can be installed in the shell, and product quality is improved.
Description
Technical field:
The present invention relates to the temperature sensor technical field, relate in particular a kind of improved temperature sensor for vehicle
Background technology:
At present, the overall package of the cooling-water temperature transmitter on motor car engine generally adopts the mode of copper shell to be encapsulated, pass through punch riveting together between plug and housing, its weak point is punch riveting technogenic influence sensor outward appearance, cause stress to concentrate, copper shell is caused to damage, reduce sealing effectiveness, and the thermistor of conventional temperature sensor for housing and plug and is compressed by both ends of the spring, housing is connected more firm with plug, the elastic force of the spring adopted when its weak point is assembling must meet the acting force to housing and plug, excessive or the fixing firm degree of too small all impacts of acting force.
Simultaneously, existing 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.
Summary of the invention:
Purpose of the present invention is exactly the deficiency for prior art, and provide a kind of improved temperature sensor for vehicle, it is simple in structure, cost is low, precision is high, simultaneously, be provided with adjustable circular cushion block in the upper cylindrical hole of its housing, make in housing the different spring of elastic force can be installed, improve the quality of product.
Technology solution of the present invention is as follows:
A kind of improved temperature sensor for vehicle, comprise pad, plug, housing, packing washer and thermistor, in described plug, is provided with contact pin, and thermistor and contact pin weld together;
Form shoulder hole die cavity body in described housing, shoulder hole die cavity body is comprised of upper cylindrical hole and lower cylindrical hole, the diameter of upper cylindrical hole is greater than the diameter of lower cylindrical hole, upper cylindrical hole inwall forms internal thread, circular cushion block is screwed onto on the inwall of cylindrical hole, and plug is fixed on the top of housing, and the spring sleeve is in upper cylindrical hole, thermistor by upper under sleeve is in spring, circular cushion block and lower cylindrical hole successively, spring one end is put forth effort on plug, the other end is put forth effort on circular cushion block.
Be filled with thermal conductivity epoxy resin between the madial wall of described thermistor and upper cylindrical hole.
The cylindrical induction part that described housing is formed by connecting portion and connecting portion bottom forms, form cylindrical hole in connecting portion, form lower cylindrical hole in cylindrical induction part, the external wall of upper portion of connecting portion is six cylinders, form external thread on the bottom outer wall of connecting portion, the middle part outer wall upper sleeve of the connecting portion between the external thread on the bottom outer wall of six cylinders and connecting portion has pad.
The top of described connecting portion forms shrinkage pool, shrinkage pool communicates with upper cylindrical hole, the bottom of plug and packing washer sleeve are in shrinkage pool, the bottom face of plug is pressed against on packing washer, packing washer is pressed against on the bottom face of shrinkage pool, the side wall and pressure of shrinkage pool lean against on the bottom lateral wall of plug form fixing.
Beneficial effect of the present invention is:
It is simple in structure, cost is low, precision is high, simultaneously, is provided with adjustable circular cushion block in the upper cylindrical hole of its housing, makes can install in housing the spring of various different elastic force, improves the quality of product.
The accompanying drawing explanation:
Fig. 1 is structural representation of the present invention.
Embodiment:
Embodiment: as shown in Figure 1, a kind of improved temperature sensor for vehicle, comprise pad 1, plug 2, housing 3, packing washer 4 and thermistor 5, be provided with contact pin 21 in described plug 2, contact pin 21 carries out injection moulding and directly is fixed in the plug 2 of moulding in mould, and thermistor 5 and contact pin 21 weld together;
Form shoulder hole die cavity body 31 in described housing 3, shoulder hole die cavity body 31 is comprised of upper cylindrical hole 31a and lower cylindrical hole 31b, the diameter of upper cylindrical hole 31a is greater than the diameter of lower cylindrical hole 31b, upper cylindrical hole 31a inwall forms internal thread, circular cushion block 6 is screwed onto on the inwall of cylindrical hole 31a, plug 2 is fixed on the top of housing 3, spring 7 sleeves are in upper cylindrical hole 31a, thermistor 5 by upper under successively sleeve at spring 7, in circular cushion block 6 and lower cylindrical hole 31b, spring 7 one ends are put forth effort on plug 2, the other end is put forth effort on circular cushion block 6, so when mounted, because the elastic force of each spring 7 is different, vary, elastic force is crossed ambassador's plug 2 and can't better be fixed in housing 3, too small, easily make housing 3 and plug 2 form loosening, at this moment, just by the rotation position of circular cushion block 6 in upper cylindrical hole 31a, regulate the spacing between the bottom face of circular cushion block 6 and plug 2, regulating spring 7 pressures, thereby meet the reacting force of 7 pairs of housings 3 of spring and plug 2, the differentiated spring 7 of elastic force tool can be installed like this, improve the quality of product.Wherein circular cushion block 6 middle parts form sexangle through hole 61, facilitate allen key to rotate and regulate.
Be filled with thermal conductivity epoxy resin 8 between the madial wall of described thermistor 5 and upper cylindrical hole 31a, thermal conductivity epoxy resin 8 is HT1101 single component heat-conducting silicone grease epoxy resin, and it is slow that it has overcome air heat conduction, the deficiency that the response time is long, precision is low.
The cylindrical induction part 33 that described housing 3 is formed by connecting portion 32 and connecting portion 32 bottoms forms, form cylindrical hole 31a in connecting portion 32, form lower cylindrical hole 31b in cylindrical induction part 33, the external wall of upper portion of connecting portion 32 is six cylinders 321, form external thread on the bottom outer wall of connecting portion 32, the middle part outer wall upper sleeve of the connecting portion 32 between the external thread on the bottom outer wall of six cylinders 321 and connecting portion 32 has pad 1.
The top of described connecting portion 32 forms shrinkage pool 34, shrinkage pool 34 diameters are greater than cylindrical hole 31a, shrinkage pool 34 communicates with upper cylindrical hole 31a, the bottom of plug 2 and packing washer 4 sleeves are in shrinkage pool 34, the bottom face of plug 2 is pressed against on packing washer 4, packing washer 4 is pressed against on the bottom face of shrinkage pool 34, and the sidewall of shrinkage pool 34 revolves riveting by rolling to be made on its bottom lateral wall that is pressed against plug 2 to form fixing, has overcome the problem of the appearance poor that punching press causes, easy damaged, poor stability.Thermistor 6 is high precision NTC bar shaped thermistor.
Claims (4)
1. an improved temperature sensor for vehicle, comprise pad (1), plug (2), housing (3), packing washer (4) and thermistor (5), it is characterized in that: be provided with contact pin (21) in described plug (2), thermistor (5) and contact pin (21) weld together;
Form shoulder hole die cavity body (31) in described housing (3), shoulder hole die cavity body (31) is comprised of upper cylindrical hole (31a) and lower cylindrical hole (31b), the diameter of upper cylindrical hole (31a) is greater than the diameter of lower cylindrical hole (31b), upper cylindrical hole (31a) inwall forms internal thread, circular cushion block (6) is screwed onto on the inwall of cylindrical hole (31a), plug (2) is fixed on the top of housing (3), spring (7) sleeve is in upper cylindrical hole (31a), thermistor (5) by upper under successively sleeve in spring (7), in circular cushion block (6) and lower cylindrical hole (31b), spring (7) one ends are put forth effort on plug (2), the other end is put forth effort on circular cushion block (6).
2. a kind of improved temperature sensor for vehicle according to claim 1, is characterized in that: between the madial wall of described thermistor (5) and upper cylindrical hole (31a), be filled with thermal conductivity epoxy resin (8).
3. a kind of improved temperature sensor for vehicle according to claim 1, it is characterized in that: the cylindrical induction part (33) that described housing (3) is formed by connecting portion (32) and connecting portion (32) bottom forms, form cylindrical hole (31a) in connecting portion (32), form lower cylindrical hole (31b) in cylindrical induction part (33), the external wall of upper portion of connecting portion (32) is six cylinders (321), form external thread on the bottom outer wall of connecting portion (32), the middle part outer wall upper sleeve of the connecting portion (32) between the external thread on the bottom outer wall of six cylinders (321) and connecting portion (32) has pad (1).
4. according to the described a kind of improved temperature sensor for vehicle of claim 1 or 3, it is characterized in that: the top of described connecting portion (32) forms shrinkage pool (34), shrinkage pool (34) communicates with upper cylindrical hole (31a), the bottom of plug (2) and packing washer (4) sleeve are in shrinkage pool (34), the bottom face of plug (2) is pressed against on packing washer (4), packing washer (4) is pressed against on the bottom face of shrinkage pool (34), the side wall and pressure of shrinkage pool (34) lean against on the bottom lateral wall of plug (2) form fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310408228 CN103471739A (en) | 2013-09-09 | 2013-09-09 | Improved temperature sensor for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310408228 CN103471739A (en) | 2013-09-09 | 2013-09-09 | Improved temperature sensor for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103471739A true CN103471739A (en) | 2013-12-25 |
Family
ID=49796682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310408228 Pending CN103471739A (en) | 2013-09-09 | 2013-09-09 | Improved temperature sensor for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103471739A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784009A (en) * | 2016-05-25 | 2016-07-20 | 芜湖力锐达汽车部件有限公司 | Motorcycle position air inlet temperature and pressure sensor |
| US9909929B2 (en) | 2014-06-30 | 2018-03-06 | Denso Corporation | Temperature sensor and process of manufacturing same |
-
2013
- 2013-09-09 CN CN 201310408228 patent/CN103471739A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9909929B2 (en) | 2014-06-30 | 2018-03-06 | Denso Corporation | Temperature sensor and process of manufacturing same |
| DE102015109063B4 (en) | 2014-06-30 | 2021-08-26 | Denso Corporation | Temperature sensor and method of making the same |
| CN105784009A (en) * | 2016-05-25 | 2016-07-20 | 芜湖力锐达汽车部件有限公司 | Motorcycle position air inlet temperature and pressure sensor |
| CN105784009B (en) * | 2016-05-25 | 2018-01-02 | 芜湖力锐达汽车部件有限公司 | A kind of motorcycle positions air inlet temperature/pressure sensor |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131225 |