CN201763433U - Automobile thermostat - Google Patents
Automobile thermostat Download PDFInfo
- Publication number
- CN201763433U CN201763433U CN2010202552047U CN201020255204U CN201763433U CN 201763433 U CN201763433 U CN 201763433U CN 2010202552047 U CN2010202552047 U CN 2010202552047U CN 201020255204 U CN201020255204 U CN 201020255204U CN 201763433 U CN201763433 U CN 201763433U
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- valve
- valve seat
- automobile
- valve body
- valve gap
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Abstract
The utility model provides an automobile thermostat, belongs to the technical field of automobile components, and solves the problem in the conventional automobile thermostat that the valve cap and the valve seat make a sharp knocking sound due to contact. The automobile thermostat comprises a cylindrical valve body, a valve seat fixedly connected to the opening part of the valve body and forming an inner chamber with the valve body, and an ejection mechanism penetrating the bottom of the valve body and axially moving along the valve body; the upper end of the ejection mechanism is fixedly connected with the inner side of the valve seat; the automobile thermostat further comprises an annular valve cap fixedly connected with the periphery of the ejection mechanism and a closed spring sleeved on the outer side of the ejection mechanism; one end of the closed spring is propped against the valve cap, and the other end of the closed spring is propped against the bottom of the valve body; the valve cap is propped against the valve seat under the elastic action of the closed spring; the inner chamber is divided into two parts by the valve cap; and a buffer layer is arranged between the valve cap and the valve seat. The utility model has the advantages of long service life and good sealing performance and the like.
Description
Technical field
The utility model belongs to technical field of automobile parts, relates to the controlling device of temperature in a kind of cooling system, particularly a kind of automobile thermostat.
Background technique
Thermostat is the thermoregulator strength member of cooling system, and what of quantity of circulating water in the cooling system its switching by valve gap regulate, to realize the control to engine water temperature.For example, Chinese patent discloses a kind of automobile thermostat [notice of authorization number be: CN2789428Y], comprise end cap, support, liftout mechanism and be fixed on the liftout mechanism valve gap, bottom with its interlock, liftout mechanism comprises the storage of tubbiness spring chamber, sealing cover and center push rod, the sealing cover center is provided with the through hole that is slidingly fitted with the central term shank diameter, push rod one end in center passes from through hole, spring is store indoor chamber the helical spring of being made by memory alloy is housed, helical spring lower end is against intracavity bottom, and top is against on another termination of center push rod.
Its working principle is such: when water temperature is lower than setting temperature, the spring that memory alloy in the spring storage chamber is made is in contraction state, valve gap is closed the major cycle passage being pressed under the effect of closing spring force on the end cap central through bore, carry bottom on simultaneously to open the short circle passage; When water temperature is higher than when setting temperature, the spring that memory alloy is made is in extended configuration, and its elastic force overcomes the elastic force of closing spring to be store spring under the chamber and push away, and valve gap moves down with spring storage chamber and opens the major cycle passage, and bottom is with the short circle pathway closure simultaneously.
Use the more waxtype thermostat that also has in the market, expanding after this thermostat is heated by paraffin upwards promotes the center push rod, and the wax chamber moves down opens the major cycle passage.These two kinds of thermostats all have merits and demerits separately, but all be by the switching of valve gap regulate quantity of circulating water in the cooling system what.Cooling system by short circle in the process that major cycle is switched, because this moment, water temperature changed greatly, thermostat opens and closes frequent, easily send sharp-pointed knocking between the valve gap of thermostat and the valve seat, the thermostat vibration will take place when serious, when working life, the especially thermostat of reduction thermostat is arranged in cylinder cap water outlet place.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed the automobile thermostat of a kind of long service life, good seal performance.
The purpose of this utility model can realize by following technical proposal:
This automobile thermostat, comprise tubular valve body, be connected in the valve seat of valve body openings place and valve body formation inner chamber, and wear and penetrate in valve body bottom and can be along the axially movable liftout mechanism of valve body, the upper end of described liftout mechanism is connected in the inboard of valve seat, it is characterized in that, this automobile thermostat also comprises the ring-type valve gap that is fixed on the liftout mechanism periphery and is set in the spring of cutting out in the liftout mechanism outside, a described end of closing spring is resisted against on the above-mentioned valve gap, the other end is resisted against the bottom of described valve body, above-mentioned valve gap leans with described valve seat under the elastic force effect of closing spring, described valve gap is separated into two parts with above-mentioned inner chamber, is provided with buffer layer between described valve gap and valve seat.
The working principle of this automobile thermostat is such: when the temperature of motor car engine surpasses setting value, liftout mechanism is extended by Temperature Influence, valve gap is driven position away from valve seat, the inner chamber that this moment, valve body and valve seat formed is communicated with again, cooling liquid is cooled off motor through inner chamber, realizes the major cycle of cooling liquid; When the temperature of motor car engine was lower than setting value, liftout mechanism was subjected to Temperature Influence and shortens, and this moment, valve gap was resisted against on the valve seat again, and cooling liquid is stoped by valve gap, closes the circulation of cooling liquid.Buffer layer is located at valve gap and valve seat contacting point, and buffer layer in the form of a ring.When this automobile thermostat frequently cuts out, owing to there is buffer layer in the middle of valve gap and valve seat, to play the cushion seal effect, contact the knock that is brought so just can well solve valve gap with the valve seat rigidity, improved the working life of this automobile thermostat, also strengthened the sealing of automobile thermostat.
In above-mentioned automobile thermostat, described liftout mechanism comprises the sealing cover of tubular body and the described body openings of sealing, and be located at intrinsic center push rod, described sealing cover center is provided with the through hole that is slidingly matched with the center push rod, one end of described center push rod passes through hole, also be provided with elastic component in described body, an end of described elastic component is resisted against the chamber body bottom, and the other end is resisted against the other end of above-mentioned center push rod.
During liftout mechanism work, the elastic component that is provided with in it is flexible under Temperature Influence, promotes body and moves along the center push rod, realizes the folding between valve gap and the valve seat.When engine temperature surpassed setting temperature, the elastic component elongation was pushed body to away from valve seat direction, and this moment, valve gap and valve seat were separated; When engine temperature was lower than setting temperature, elastic component shortened, and makes valve gap and valve seat match again, stoped flowing of cooling liquid.
In above-mentioned automobile thermostat, described elastic component is a paraffin.
Paraffin has the performance that heat absorption is expanded, and paraffin can return to original state again after temperature reduces, and this paraffin formula thermostat is widely used.
In above-mentioned automobile thermostat, the helical spring of described elastic component for making by memory alloy.
The memory alloy helical spring has the performance of expanding with heat and contract with cold, and raise by temperature and elongation and can return to remember condition when temperature reduces.
In above-mentioned automobile thermostat, described buffer layer is coated in the downside of valve seat and/or the upside of valve gap.
This automobile thermostat is by applying one deck buffer layer on the sealing surface of valve body and/or valve gap, to solve because original valve gap contacts the vibration of knocking that is brought with the valve seat rigidity, improved the life-span of thermostat, the sealing after the thermostat that has applied buffer layer simultaneously cuts out also significantly gets a promotion.The buffer layer here can only apply the downside of valve seat, also can only be coated in the upside of valve gap, perhaps all is coated with buffer layer at the downside of valve body and the upside of valve gap.
In above-mentioned automobile thermostat, described buffer layer is the EDPM material layer.
EPDM Chinese ethylene propylene diene rubber by name, it is the terpolymer of ethene, propylene and non-conjugated diene hydrocarbon, its topmost characteristic is exactly superior resistance to oxidation, anti-ozone and erosion-resistant ability, can play the effect of buffering when being coated on valve body and/or the valve gap.
In above-mentioned automobile thermostat, be fixed with guide pillar and can be on the bottom of described body along the axially movable bottom of guide pillar, described guide pillar is arranged with the turriform spring outward, and an end of described turriform spring is resisted against on the bottom, and the other end is resisted against the bottom of above-mentioned body.
When above-mentioned valve gap contacted with valve seat, this structure had constituted the short circle in the thermostat, and this moment, the turriform spring shortened, and bottom moves up along guide pillar, and the passage that will be positioned at the bottom below is opened, and constitutes the thermostat short circle.When opening between valve gap and the valve seat, short circle is closed.
Compared with prior art, this automobile thermostat has the following advantages:
Be coated with the EDPM layer at the downside of valve seat and/or the upside of valve gap, the EPDM material plays the cushion seal effect in the centre, can well solve valve gap and contact sharp-pointed the knocking that is brought, improve the working life of thermostat, strengthen the sealing of thermostat with the valve seat rigidity.
Description of drawings
Fig. 1 is the structural representation of this automobile thermostat.
Fig. 2 is the structural representation of this automobile thermostat of providing of embodiment one.
Fig. 3 is the structural representation of this automobile thermostat of providing of embodiment two.
Among the figure, 1, valve body; 11, inner chamber; 2, valve seat; 3, valve gap; 4, close spring; 5, buffer layer; 61, body; 62, sealing cover; 63, center push rod; 64, paraffin; 65, helical spring; 7, guide pillar; 8, bottom; 9, turriform spring.
Embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
Embodiment one
As shown in Figure 1, this automobile thermostat, comprise tubular valve body 1, be connected in that valve body 1 opening and valve body 1 upper end are connected as a single entity and form the valve seat 2 of inner chamber 11 with valve body 1, and wear that penetrate should be able to be along valve body 1 axially movable liftout mechanism in valve body 1 bottom, the upper end of liftout mechanism is connected on the valve seat 2 by screw thread, what be fixed with ring-type valve gap 3 in the periphery of liftout mechanism and be set in the liftout mechanism outside closes spring 4, valve gap 3 can move up and down and inner chamber 11 is separated into two parts with liftout mechanism, the effect of valve gap 3 is exactly to make two parts of inner chamber 11 separate or be communicated with, one end of closing spring 4 is resisted against on the valve gap 3, the other end is resisted against the bottom of valve body 1, and valve gap 3 leans with valve seat 2 under the elastic force effect of closing spring 4.
Concrete, liftout mechanism comprises the sealing cover 62 of tubular body 61 and enclosed body 61 openings, and be located at center push rod 63 in the body 61, sealing cover 62 centers are provided with the through hole that is slidingly matched with center push rod 63, one end of center push rod 63 passes through hole, the upper end of center push rod 63 is connected on the valve seat 2 by screw thread, in body 61, also be provided with elastic component, elastic component in the present embodiment is a paraffin 64, as shown in Figure 2, paraffin 64 is located in body 61 cavitys, and the lower end of center push rod 63 has the effect that can prevent that it from coming off and leaking to paraffin 64.Expansion by paraffin 64 and shrinking promotes body 61 along the moving up and down of center push rod 63, and reaches the purpose of opening and closing major cycle.
Be fixed with guide pillar 7 and can be along guide pillar 7 axially movable bottoms 8 on the bottom of body 61, guide pillar 7 is outer to be arranged with turriform spring 9, and an end of turriform spring 9 is resisted against on the bottom 8, and the other end is resisted against the bottom of body 61.When major cycle was closed, the short circle of Gou Chenging was opened here; When major cycle was opened, the short circle of Gou Chenging was closed here.So-called major cycle, be exactly valve gap 3 and valve seat 2 when being separated cooling liquid can cool off through 1 pair of motor of valve body.
Contact knock, the working life of improving thermostat that is brought, the sealing that strengthens thermostat with valve seat 2 rigidity in order well to solve valve gap 3, between valve gap 3 and valve seat 2, be provided with buffer layer 5.Concrete, the buffer layer 5 here is for being coated in the EDPM material layer of valve seat 2 downsides, the EDPM material layer ringwise, when major cycle is closed, valve gap 3 just is resisted against on the EDPM material layer, owing to have buffer layer 5 in the middle of valve gap 3 and valve seat 2, to play the cushion seal effect, solved because original valve gap 3 contacts the vibration of knocking that brings with valve seat 2 rigidity.
This automobile thermostat is work like this: when the temperature of motor car engine surpasses setting value, paraffin 64 is expanded by Temperature Influence in the liftout mechanism, the back body 61 that expands moves down along center push rod 63, this moment, valve gap 3 was also along with body 61 moves down, the inner chamber 11 that this moment, valve body 1 and valve seat 2 formed is communicated with again, cooling liquid is cooled off through 11 pairs of motors of inner chamber, realizes the major cycle of cooling liquid, is positioned at the short circle of valve body 1 bottom this moment and closes; When the temperature of motor car engine is lower than setting value, paraffin 64 is subjected to Temperature Influence and shrinks in the liftout mechanism, and this moment, valve gap 3 was resisted against on the valve seat 2 again, and cooling liquid is stoped by valve gap 3, close the major cycle of cooling liquid, be positioned at the short circle of valve body 1 bottom this moment and open.
Embodiment two
Structural principle in the present embodiment is basic identical with the structural principle among the embodiment one, different places are, the helical spring 65 of elastic component in the present embodiment for making by memory alloy, as shown in Figure 3, one end of helical spring 65 is resisted against body 61 inner chambers 11 bottoms, and the other end is resisted against the other end of center push rod 63.The helical spring 65 that this memory alloy is made can produce distortion under external force, when external force is removed, under certain temperature condition, can return to the original form.
Embodiment three
Structural principle in the present embodiment is basic identical with the structural principle among embodiment one and the embodiment two, and different places are that buffer layer 5 is for being coated in the EDPM material layer of valve gap 3 upsides, and the EDPM material layer ringwise.
Embodiment four
Structural principle in the present embodiment is basic identical with the structural principle among embodiment one and embodiment two and the embodiment three, and different places are, the EDPM material layer that buffer layer 5 is, and the EDPM material layer is ringwise.In the present embodiment EDPM material layer is coated in the downside of valve seat 2 and the upside of valve gap 3 respectively.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used valve body 1, inner chamber 11, valve seat 2, valve gap 3, closed terms such as spring 4, buffer layer 5, body 61, sealing cover 62, center push rod 63, paraffin 64, helical spring 65, guide pillar 7, bottom 8, turriform spring 9 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (7)
1. automobile thermostat, comprise tubular valve body (1), be connected in the valve seat (2) of valve body (1) opening and valve body (1) formation inner chamber (11), and wear and penetrate in valve body (1) bottom and can be along the axially movable liftout mechanism of valve body (1), the upper end of described liftout mechanism is connected in the inboard of valve seat (2), it is characterized in that, what this automobile thermostat also comprised the ring-type valve gap (3) that is fixed on the liftout mechanism periphery and was set in the liftout mechanism outside closes spring (4), a described end of closing spring (4) is resisted against on the above-mentioned valve gap (3), the other end is resisted against the bottom of described valve body (1), above-mentioned valve gap (3) leans with described valve seat (2) under the elastic force effect of closing spring (4), described valve gap (3) is separated into two parts with above-mentioned inner chamber (11), is provided with buffer layer (5) between described valve gap (3) and valve seat (2).
2. automobile thermostat according to claim 1, it is characterized in that, described liftout mechanism comprises the sealing cover (62) of tubular body (61) and sealing described body (61) opening, and be located at center push rod (63) in the body (61), described sealing cover (62) center is provided with the through hole that is slidingly matched with center push rod (63), one end of described center push rod (63) passes through hole, in described body (61), also be provided with elastic component, one end of described elastic component is resisted against body (61) inner chamber (11) bottom, and the other end is resisted against the other end of above-mentioned center push rod (63).
3. automobile thermostat according to claim 2 is characterized in that, described elastic component is paraffin (64).
4. automobile thermostat according to claim 2 is characterized in that, the helical spring (65) of described elastic component for being made by memory alloy.
5. according to claim 1 or 2 or 3 or 4 described automobile thermostats, it is characterized in that described buffer layer (5) is coated in the downside of valve seat (2) and/or the upside of valve gap (3).
6. automobile thermostat according to claim 5 is characterized in that, described buffer layer (5) is the EDPM material layer.
7. according to claim 2 or 3 or 4 described automobile thermostats, it is characterized in that, be fixed with guide pillar (7) and can be on the bottom of described body (61) along the axially movable bottom of guide pillar (7) (8), the outer turriform spring (9) that is arranged with of described guide pillar (7), one end of described turriform spring (9) is resisted against on the bottom (8), and the other end is resisted against the bottom of above-mentioned body (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202552047U CN201763433U (en) | 2010-07-12 | 2010-07-12 | Automobile thermostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202552047U CN201763433U (en) | 2010-07-12 | 2010-07-12 | Automobile thermostat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201763433U true CN201763433U (en) | 2011-03-16 |
Family
ID=43716040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202552047U Expired - Fee Related CN201763433U (en) | 2010-07-12 | 2010-07-12 | Automobile thermostat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201763433U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742245A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Automobile engine stepped temperature adjusting device |
| CN103758623A (en) * | 2013-12-23 | 2014-04-30 | 柳州正菱集团有限公司 | Automobile engine thermostat |
| CN107013306A (en) * | 2017-03-24 | 2017-08-04 | 林晓峰 | Engine thermostat is uncapped the temperature control of circulation |
| CN107407441A (en) * | 2015-03-24 | 2017-11-28 | 韦内特公司 | For the circulation that controls fluid thermostat and include the thermostatic valve of this device |
| US10795385B2 (en) | 2016-04-26 | 2020-10-06 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| US10817006B2 (en) | 2016-04-26 | 2020-10-27 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| US11003199B2 (en) | 2016-07-21 | 2021-05-11 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| US11175684B2 (en) | 2015-12-07 | 2021-11-16 | Vernet | Thermostatic single-control cartridge and mixer tap provided with such a cartridge |
-
2010
- 2010-07-12 CN CN2010202552047U patent/CN201763433U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742245A (en) * | 2013-12-23 | 2014-04-23 | 柳州正菱集团有限公司 | Automobile engine stepped temperature adjusting device |
| CN103758623A (en) * | 2013-12-23 | 2014-04-30 | 柳州正菱集团有限公司 | Automobile engine thermostat |
| CN107407441A (en) * | 2015-03-24 | 2017-11-28 | 韦内特公司 | For the circulation that controls fluid thermostat and include the thermostatic valve of this device |
| US10663073B2 (en) | 2015-03-24 | 2020-05-26 | Vernet | Thermostatic device for controlling the circulation of a fluid, and thermostatic valve including such a device |
| CN107407441B (en) * | 2015-03-24 | 2020-07-28 | 韦内特公司 | Thermostatic device for controlling the passage of a fluid and thermostatic valve comprising such a device |
| US11175684B2 (en) | 2015-12-07 | 2021-11-16 | Vernet | Thermostatic single-control cartridge and mixer tap provided with such a cartridge |
| US10795385B2 (en) | 2016-04-26 | 2020-10-06 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| US10817006B2 (en) | 2016-04-26 | 2020-10-27 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| US11003199B2 (en) | 2016-07-21 | 2021-05-11 | Vernet | Mixing unit and mixer tap comprising such a mixing unit |
| CN107013306A (en) * | 2017-03-24 | 2017-08-04 | 林晓峰 | Engine thermostat is uncapped the temperature control of circulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130712 |