CN102787902B - Thermostat of automobile engine - Google Patents
Thermostat of automobile engine Download PDFInfo
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- CN102787902B CN102787902B CN201210312378.6A CN201210312378A CN102787902B CN 102787902 B CN102787902 B CN 102787902B CN 201210312378 A CN201210312378 A CN 201210312378A CN 102787902 B CN102787902 B CN 102787902B
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- driving element
- thermostat
- pipeline
- cylindrical
- automobile engine
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Abstract
The invention discloses a thermostat of an automobile engine. The thermostat of the automobile engine comprises a valve main body and is characterized in that the valve main body comprises a first part and a second part which are vertically arranged. The outer lateral wall of the first part is fixed with the inner side of a pipeline of an automobile cooling system, and the first part and the second part form a whole circle to seal the pipeline. The thermostat of the automobile engine further comprises a driving element made of memory alloy, wherein two ends of the driving element are respectively fixed with the first part and the second part. When cooling liquid in the cooling system reaches a specified value, the driving element deforms to drive the second part to rotate in a radial plane of the pipeline. The driving element is made of the memory alloy instead of traditional paraffin wax, the torsional behavior provided by the memory alloy is utilized to control the opening direction of a valve, and the opening direction of the valve is not the same as the water flow direction but is perpendicular to the water flow direction, so that pressure loss can be reduced by more than 90%, and large space is provided for design of water pumps of users.
Description
Technical field
The present invention relates to the temperature regulator in a kind of cooling system of motor car engine, the thermostat in especially a kind of cooling system pipeline.
Background technique
Thermostat is thermoregulator strength member in engine-cooling system, it regulates according to the height of cooling water temperature the water yield that enters radiator automatically, change the range of DO of water, to regulate the heat dissipation potential of cooling system, guarantee motor is worked in suitable temperature range.Thermostat must keep good state of the art, otherwise can have a strong impact on the normal work of motor.
Conventional thermostat is waxtype thermostat at present, when chilling temperature is during lower than specified value, the paraffin in thermostat temperature sensor is solid-state, thermostat valve under the effect of spring, kill engine and radiator between passage, cooling liquid, through water pump return engine, is carried out short circle in motor.When coolant temperature reaches after specified value, paraffin starts thawing and gradually becomes liquid, volume increases the effect to push rod thereupon makes valve opening, at this moment cooling liquid is via radiator and thermostat valve, flow back to motor through water pump again, carry out major cycle, if notice of authorization number is the disclosed a kind of thermostat of Chinese patent of CN201650435U.
In addition, also there is electric-controlled type thermostat, it is the driving mode coordinating with electromagnetic coil and armature, replace paraffin, by the control of electromagnetic coil being completed to the keying folding of valve, control sensitively, reliability is high, if notice of authorization number is the disclosed a kind of electric-controlled thermostat of Chinese patent of CN202348410U.
These above-mentioned thermostats, valve opening and closing direction is consistent with water (flow) direction, due to the narrow limitation of this structure itself, causes circulating water flow in the time of thermostat, and crushing strengthens, and cooling capacity reduces.And along with the development of automotive engineering, also more and more higher to the requirement of energy consumption, cooling capacity reduces and directly causes pump power constantly to reduce.
Summary of the invention
Technical problem to be solved by this invention is to provide one can significantly reduce crushing, improves the thermostat of automobile engine of cooling capacity.
The present invention solves the problems of the technologies described above adopted technological scheme: a kind of thermostat of automobile engine, comprise valve body, it is characterized in that, described valve body comprises first portion setting up and down and second portion, the outer side wall of described first portion and the pipeline of automobile cooling system inner side are fixing, thereby described first portion and second portion form a full circle seals described pipeline, also comprise the driving element of being made by memory alloy, the two ends of described driving element are fixed with described first portion and second portion respectively, after the cooling liquid of described driving element in described cooling system reaches specified value distortion drive described second portion in described canal path to rotation with in surface.
According to an aspect of the present invention, the equal semicircular in shape of described first portion and second portion, comprises integrated the first arm and the second arm, and the end of described the first arm and described first portion are fixed, the end of described the second arm and described valve body are fixed, and between two arms, have angle.In the time that coolant temperature reaches specified value, driving element starts distortion, and the angle between two arms of driving element increases, thereby can drive second portion at its rotation with in surface with the second arm that second portion is fixed.
According to another aspect of the present invention, described first portion comprises the inner inner circle of being positioned at of concentric setting and is positioned at outside cylindrical, described inner circle is divided into four equal portions to form spaced inner circle solid section and inner circle openwork part, described outer fenestra is divided into four equal portions to form spaced cylindrical solid section and cylindrical openwork part, the setting of staggering of described inner circle solid section and cylindrical solid section, described cylindrical openwork part arranged outside has the eccentric circular ring that angle is identical, identical and two the orthogonal settings of part of the shape of described second portion and first portion, the solid section of first portion and the openwork part of second portion are overlapping thus, the openwork part of first portion and the solid section of second portion are overlapping, two parts form full circle closing pipe line in the time that driving element is not out of shape.
The means of fixation of described driving element and valve body, can fix for one end and described first portion after middle torsion, and the other end is through fixing after the solid section of described second portion.
Also comprise that the signal by receiving the temperature transducer arranging in described pipeline controls the ECU of described driving element, better the keying of valve body is controlled.
Compared with prior art, the invention has the advantages that: driving element memory alloy is replaced to traditional paraffin, the twisting characteristic that utilizes memory alloy to provide, carry out control valve opening direction, the opening direction of valve is no longer consistent with water (flow) direction, but vertical with water (flow) direction, can reduce crushing more than 90%, larger space is provided to the design alternative of user's water pump.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is that the thermostat of Fig. 1 is in the structural representation of opening state;
Fig. 3 is the structural representation of the embodiment of the present invention two;
Fig. 4 is the perspective exploded view of the embodiment of the present invention two;
Fig. 5 is that the thermostat of Fig. 3 is in the structural representation of opening state.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment one:
Referring to Fig. 1 and Fig. 2, this thermostat of automobile engine, comprises valve body 1 and driving element 2.Wherein, valve body 1 comprises first portion 11 and the second portion 12 of equal semicircular in shape setting up and down, and the outer side wall of first portion 11 and the pipeline of cooling system 3 inner sides are fixed.Driving element 2 is made up of memory alloy, taking Cu base as main, as Ti-Ni-Cu or Cu-Al-Be.Driving element 2 comprises integrated two arms, and the end of the first arm 21 and first portion 11 are fixing, and the end of the second arm 22 and second portion 12 are fixing, between two arms, have angle.
When chilling temperature is during lower than specified value, driving element 2 is in original state, and two parts of valve body 1 form full circle, have sealed the passage between motor and radiator, and cooling liquid, through water pump return engine, is carried out short circle in motor, referring to Fig. 1.When coolant temperature reaches after specified value, driving element 2 starts distortion, article two, the angle between arm increases, and because first portion 11 maintains static with pipeline 3, promotes second portion 12 thus rotate with the second arm 22 of the fixing driving element 2 of second portion 12, make itself and first portion 11 overlapping and do not reconstruct full circle at least partly, valve body 1 is opened, and at this moment cooling liquid is via radiator and thermostat, then flows back to motor through water pump, carry out major cycle, referring to Fig. 2.
Embodiment two:
Referring to Fig. 3 and Fig. 4, this thermostat of automobile engine, comprises valve body 1 ' and driving element 2 '.Wherein, valve body 1 ' comprises the first portion 11 ' and the second portion 12 ' that arrange with one heart up and down, the inner side of the outer side wall of first portion 11 ' and the pipeline of cooling system 3 is fixed, first portion 11 ' comprises two concentric circles, be positioned at inner inner circle 111 ' and be divided into four equal portions, form spaced inner circle solid section 1111 ' and inner circle openwork part 1112 ', be positioned at outside cylindrical 112 ' and be divided into equally four equal portions, form spaced cylindrical solid section 1121 ' and cylindrical openwork part 1122 ', the setting of staggering of inner circle solid section 1111 ' and cylindrical solid section 1121 ', cylindrical openwork part 1122 ' arranged outside has the shape of eccentric circular ring 113 ' second portion 12 ' that angle is identical and first portion 11 ' identical.
Driving element 2 ' is made up of memory alloy, and taking Cu base as main, as Ti-Ni-Cu or Cu-Al-Be, after middle torsion, one end and first portion 11 ' are fixing, and the other end is through fixing after the solid section of second portion 12 '.
When chilling temperature is during lower than specified value, driving element 2 ' is in original state, between two parts of valve body 1 ', be 90 degree and orthogonal setting, form thus solid full circle, seal the passage between motor and radiator, cooling liquid, through water pump return engine, is carried out short circle in motor, referring to Fig. 3.When coolant temperature reaches after specified value, driving element 2 starts distortion, angle between two arms after torsion increases, and because first portion 11 ' maintains static with pipeline 3, promotes second portion 12 ' thus rotate with the fixing driving element 2 ' one end of second portion 12 ', make itself and first portion 11 ' overlapping and do not reconstruct full circle at least partly, valve body 1 ' is opened, and at this moment cooling liquid is via radiator and thermostat, then flows back to motor through water pump, carry out major cycle, referring to Fig. 5.
In above-described embodiment one and embodiment two, electronic control unit (ECU) also can be set, receive the signal of the temperature transducer of pipeline 3 interior settings, thereby thereby control driving element 2, the 2 ' opening/shutting valve main body 1,1 ' by controlling electronic controller.
The foregoing is only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill in the art, not departing under principle prerequisite of the present invention, can also make various deformation and improvement, this also should be considered as protection scope of the present invention.
Claims (3)
1. a thermostat of automobile engine, comprise valve body (1 '), it is characterized in that, described valve body (1 ') comprises first portion's (11 ') setting up and down and second portion (12 '), the outer side wall of described first portion (11 ') and the pipeline of automobile cooling system (3) inner side are fixing, described first portion (11 ') and second portion (12 ') thus form a full circle seal described pipeline (3), also comprise the driving element (2 ') of being made by memory alloy, the two ends of described driving element (2 ') are fixing with described first portion (11 ') and second portion (12 ') respectively, after the cooling liquid of described driving element (2 ') in described cooling system reaches specified value, distortion drives described second portion (12 ') to rotate in described pipeline (3) radial plane, described first portion (11 ') comprises the inner circle (111 ') that being positioned at of concentric setting is inner and is positioned at outside cylindrical (112 '), described inner circle (111 ') is divided into four equal portions to form spaced inner circle solid section (1111 ') and inner circle openwork part (1112 '), described cylindrical (112 ') is also divided into four equal portions to form spaced cylindrical solid section (1121 ') and cylindrical openwork part (1122 '), the setting of staggering of described inner circle solid section (1111 ') and cylindrical solid section (1121 '), described cylindrical openwork part (1122 ') arranged outside has the eccentric circular ring (113 ') that angle is identical, identical and two the orthogonal settings of part of the shape of described second portion (12 ') and first portion's (11 ').
2. thermostat of automobile engine as claimed in claim 1, it is characterized in that, after reversing in the middle of described driving element (2 '), one end and described first portion (11 ') are fixing, and the other end is through fixing after the solid section of described second portion (12 ').
3. thermostat of automobile engine as claimed in claim 1 or 2, is characterized in that, also comprises that the signal by receiving the temperature transducer arranging in described pipeline (3) controls the ECU of described driving element (2 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312378.6A CN102787902B (en) | 2012-08-29 | 2012-08-29 | Thermostat of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210312378.6A CN102787902B (en) | 2012-08-29 | 2012-08-29 | Thermostat of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102787902A CN102787902A (en) | 2012-11-21 |
| CN102787902B true CN102787902B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210312378.6A Active CN102787902B (en) | 2012-08-29 | 2012-08-29 | Thermostat of automobile engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102787902B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882626B (en) * | 2016-02-25 | 2020-03-24 | 深圳市森威尔科技开发股份有限公司 | Temperature-saving device |
| CN106014592B (en) * | 2016-02-25 | 2017-12-19 | 温州市郎霸洁具有限公司 | Through-type thermostat |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202832755U (en) * | 2012-08-29 | 2013-03-27 | 宁波兴慈热动电器有限公司 | Automobile engine thermostat |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073179A (en) * | 1983-09-29 | 1985-04-25 | Furukawa Electric Co Ltd:The | Thermostat for water-cooled engine |
| US4913101A (en) * | 1989-03-28 | 1990-04-03 | Robertshaw Controls Company | Vehicle cooling system subassembly, parts therefor and methods of making the same |
| CN2143680Y (en) * | 1992-10-27 | 1993-10-13 | 甄凯玉 | Computerized temperature regulating device |
| CN201184235Y (en) * | 2008-03-05 | 2009-01-21 | 大连盛辉钛业有限公司 | Thermostat |
| CN101852117A (en) * | 2009-05-29 | 2010-10-06 | 柳光日 | Valve-plate electronic thermostat |
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2012
- 2012-08-29 CN CN201210312378.6A patent/CN102787902B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202832755U (en) * | 2012-08-29 | 2013-03-27 | 宁波兴慈热动电器有限公司 | Automobile engine thermostat |
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| CN102787902A (en) | 2012-11-21 |
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