CN109780259A

CN109780259A - Heat control valve

Info

Publication number: CN109780259A
Application number: CN201711115307.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Sanhua Automotive Components Co Ltd
Current assignee: Zhejiang Sanhua Automotive Components Co Ltd
Priority date: 2017-11-13
Filing date: 2017-11-13
Publication date: 2019-05-21
Anticipated expiration: 2037-11-13
Also published as: CN109780259B

Abstract

The present invention discloses a kind of heat control valve, and including the spool in end cap, valve body and valve chamber, heat control valve has the first, second first entrance for exporting, being connected to valve chamber, and the first valve port of connection valve chamber and second outlet is also opened up in valve body；Reset spring and memory spring are additionally provided in valve chamber；One end of reset spring is abutted with spool one end, and the reset spring other end is abutted with valve body；Memory spring one end and another end in contact of spool, the memory spring other end are contacted with end cap, and when memory spring temperature rise to particular value generates elastic force to drive spool to overcome the reset force mobile, the first valve port of closing；At least part of spool outer wall is slidably matched with the inner wall of valve chamber, first entrance be set to body wall.The response time of memory spring faster can open in time the first valve port so that medium switches to another flow path.When being applied to cooler and speed changer, the performance of speed changer can be promoted.The heat control valve does not need that thermostatic element, small volume additionally is arranged.

Description

Heat control valve

Technical field

The present invention relates to valve body technical fields, and in particular to a kind of heat control valve.

Background technique

It needs to accommodate lubricating oil in the speed changer of vehicle, which can play the function of lubrication and cooling, and moisten The temperature of lubricating oil influences whether the reliability and durability of speed changer, so needing to control lubricating oil in suitable work temperature Degree.

When gearbox lubrication oil temperature is higher, cooled down by external cooling device.Cooling device using heat exchanger come It is cooled down, the higher lubricating oil of temperature is cooled down using cooling water or refrigerant, to reach gear-box lubricating oil holding In certain operating temperature range.And when lubricating oil temperature is lower, it does not need to be cooled down, lubricating oil can be flowed back to directly Gearbox, without apparatus for supercooling, i.e. gearbox outflow of lubrication oil when, have two paths, one be through apparatus for supercooling, One is directly to flow back to gearbox.

Currently, the switching of above-mentioned two paths is carried out by heat control valve.It is equipped with thermostatic element in heat control valve and is looped around The spring of thermostatic element periphery, thermostatic element are expanded with heat and contract with cold according to the temperature that heat-sensitive materials experience fluid, and transmitting acts on when heat expansion Power is to spring, and band movable valve plug is mobile, and the path for flowing through cooling device is opened, and when shrinkage resets, and flows directly into the road of gearbox Diameter is opened.

However, there are following technical problems for above scheme:

Temperature is experienced to expanding with heat and contract with cold again to acting force of the spring is given from heat-sensitive materials, needs certain response time, i.e., The response time of thermostatic element is slower, and the temperature of lubricating oil can be made to generate certain hysteresis quality, then influences the property of speed changer Can, or even damage speed changer.

Also, the thermostatic element volume of above-mentioned heat-sensitive materials is larger, needs just to be able to achieve flow path with spring cooperation Switching, causes heat control valve volume larger.

Summary of the invention

The present invention provides a kind of heat control valve, to improve the temperature control sensitive time, promotes transmission performance.

Heat control valve, including end cap, valve body and the spool in the valve body valve chamber, heat control valve has first outlet, the Two outlets, the first entrances that are connected to the valve chamber, the valve chamber and the second outlet can be connected to by also opening up in the valve body The first valve port, when the spool is mobile, the spool is openable or closes first valve port；It is additionally provided in the valve chamber Reset spring and memory spring, the memory spring are made of memorial alloy；The reset spring, providing opens the spool The reset force of first valve port；One end of the reset spring and one end of the spool abut against, the reset spring The other end is abutted against with the valve body；One end of the memory spring is in contact with the other end of spool, the memory spring The other end is in contact with the end cap, and the memory spring generates elastic force when temperature is increased to particular value to drive the valve Core overcomes the reset force mobile, closes first valve port；

At least part of the spool outer wall and the inner wall of the valve chamber are slidably matched, and the first entrance is set to described The side wall of valve body.

Above scheme, the mobile control element of heat control valve control valve core are memory spring, compared to ring spring around the dynamic member of heat The response time of the scheme of part, memory spring faster can open in time the second valve port so that medium switches to another flowing Path.When being specifically employed to cooler and speed changer, the performance of speed changer can be promoted, transmission failure is prevented.At the same time, The heat control valve does not need that thermostatic element additionally is arranged, and structure is simple, easy for installation, so that entire heat control valve lighter in weight, volume Also smaller.

In addition, the intake channel between first entrance and valve chamber is opposite with the first valve port, in this way, first entrance and the first valve Access between mouth, first outlet is linear passages, and when the second valve port is opened, medium can be flowed out via the linear passages, is rung It should more quickly.At least part of spool outer wall and the inner wall of the valve chamber are slidably matched, when can prevent fluid from flowing into and valve Core or memory spring generate impact and cause to deviate.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of heat control valve first embodiment provided by the present invention；

Fig. 2 is the schematic diagram of another angle of heat control valve in Fig. 1, shows bottom；

Fig. 3 is the cross-sectional view of Fig. 1, and the second valve port is closed, and the first valve port is opened；

Fig. 4 be Fig. 3 in spool move to right after schematic diagram, the first valve port close, the second valve port open；

Fig. 5 is the schematic diagram of valve body in 3；

Fig. 6 is the structure sectional view of heat control valve second embodiment provided by the present invention, and the second valve port is closed, and the first valve port is opened It opens；

Fig. 7 be Fig. 6 in spool move to right after schematic diagram, the first valve port close, the second valve port open；

Fig. 8 is the structure sectional view of heat control valve 3rd embodiment provided by the present invention, is in original state, the first valve port tool There is default aperture, the second valve port has default aperture；

After Fig. 9 is increased to particular value for temperature in Fig. 8, the deformed heat control valve schematic diagram of memory spring, the first valve port is closed It closes, the second valve port is opened；

Figure 10 is that temperature is reduced under particular value in Fig. 9, and memory spring loses the heat control valve schematic diagram after characteristic, first Valve port is opened, and the second valve port is closed；

Figure 11 is the structural schematic diagram of spool in Fig. 8；

Figure 12 is the structure sectional view of heat control valve fourth embodiment provided by the present invention, is in original state, the first valve port With default aperture, the second valve port has default aperture；

After Figure 13 is increased to particular value for temperature in Figure 12, the deformed heat control valve schematic diagram of memory spring, the first valve port It closes, the second valve port is opened；

Figure 14 is that temperature is reduced under particular value in Figure 13, and memory spring loses the heat control valve schematic diagram after characteristic, the One valve port is opened, and the second valve port is closed；

Figure 15 is the structural schematic diagram of end cap in Figure 12；

Figure 16 is the structure sectional view of the 5th embodiment of heat control valve provided by the present invention, is in original state, the first valve port With default aperture, the second valve port has default aperture；

After Figure 17 is increased to particular value for temperature in Figure 16, the deformed heat control valve schematic diagram of memory spring, the first valve port It closes, the second valve port is opened；

Figure 18 is that temperature is reduced under particular value in Figure 17, and memory spring loses the heat control valve schematic diagram after characteristic, the One valve port is opened, and the second valve port is closed；

Figure 19 is the structure sectional view of heat control valve sixth embodiment provided by the present invention, and the first valve port is closed, the second valve port It opens；

Figure 20 is the structural schematic diagram of spool in Figure 19；

Figure 21 is the structure sectional view of the 7th embodiment of heat control valve provided by the present invention, and the first valve port is closed, the second valve port It opens；

Figure 22 is the structure sectional view of the 8th embodiment of heat control valve provided by the present invention, and the first valve port is opened, the second valve port It closes；

Figure 23 is the heat control valve schematic diagram in Figure 22 after memory spring elevated temperature deformation, and the first valve port is closed, and the second valve port is opened It opens；

Figure 24 is the schematic diagram after end cap and spool in Figure 22, reset spring, memory spring installation；

Figure 25 is the stereoscopic schematic diagram of Figure 24.

Figure 27 is the structure sectional view of the tenth embodiment of heat control valve provided by the present invention, and the first valve port is opened, the second valve port It closes；

Figure 28 be Figure 27 in spool move to right after schematic diagram, the second valve port open, the first valve port close；

Figure 29 is the schematic diagram of spool in Figure 27.

The reference numerals are as follows in Fig. 1-2 9:

10 valve bodies；10a valve chamber, 10b beeline channel, 10c aperture, 10d exit passageway, 10e intake channel；The first valve port of B, The second valve port of A；

101 first outlets, 102 second entrances, 103 first entrances, 104 second outlets；

201 memory springs, 202 reset springs；

30 end caps, 301 level-one step surfaces, 302 two stage steps faces；

40 spools, 401 main parts, 401a lug bosses at end part, 402 sleeve parts, 402a introducing port, 402b opening, 402c notch； 403 guide rods, 405 sealing plates, 405a shrinkage pool, 404 spherical portions；40 ' diaphragm seals；

50 external connectors, 60 valve rods.

Specific embodiment

It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention Applying example, the present invention is described in further detail.

Fig. 1-4 is please referred to, Fig. 1 is the structural schematic diagram of heat control valve first embodiment provided by the present invention；Fig. 2 is in Fig. 1 The schematic diagram of another angle of heat control valve, shows bottom；Fig. 3 is the cross-sectional view of Fig. 1, and the second valve port is closed, and the first valve port is opened；Figure 4 moved to right for spool in Fig. 3 after schematic diagram, the first valve port closes, and the second valve port is opened；Fig. 5 is the schematic diagram of valve body in 3.

Heat control valve in first embodiment, including valve body 10 form valve chamber 10a inside valve body 10, specifically in the embodiment In, valve chamber 10a is as shown in Fig. 3,5, from left to right, penetrates through one end end face of valve body 10, forms the valve chamber that left end has port 10a is blocked using end cap 30 at port.Valve chamber 10a is built-in with spool 40, and spool 40 can be moved axially along valve chamber 10a, herein Axial is extending direction of the one end valve chamber 10a to the other end, is Fig. 3, left and right directions shown in 4, when valve body 10 is such as Fig. 1,2 Shown in rectangular shape when, axial direction here is also the length direction of valve body 10 or valve chamber 10a.

Heat control valve has first outlet 101, second entrance 102, second outlet 104, and be connected to the valve chamber 10a First entrance 103, in this embodiment, above-mentioned entrance, outlet are shaped in the outer wall of valve body 10, can be with extraneous portion Part connects.In Fig. 3, the first valve port B of connection valve chamber 10a and second outlet 104, and connection valve chamber are also opened up in valve body 10 The second valve port A of 10a and first outlet 101.Wherein, the second valve port A is specifically set to the side cavity wall of valve chamber 10a, the second valve port A It is exit passageway 10d between first outlet 101；First valve port B is formed in the cavity wall of the one end valve chamber 10a, i.e. right end in Fig. 3 Cavity wall, left end are the port blocked by end cap 30, and the first valve port B is connected to by 104 channel of second outlet with second outlet 104, 104 channel of second outlet in Fig. 3 includes the beeline channel 10b between aperture 10c and second entrance 102, second outlet 104.

All heat control valves as described in the examples herein, can be used between speed changer and cooler, heat control valve internal flow Medium be lubricating oil.I.e. the entrance of the connection cooler of first outlet 101 of heat control valve, second entrance 102 are connected to cooler Outlet, second outlet 104 are connected to the entrance of speed changer, and first entrance 103 is connected to the outlet of speed changer, and lubricating oil is from gearbox stream Enter heat control valve through first entrance 103 after out, can directly flow back to speed changer through the first valve port B, second outlet 104, or through second Valve port A, first outlet 101 flow back to speed changer through second entrance 102, second outlet 104 again after entering cooler cooling, hereafter lead The course of work is wanted also to be illustrated with this application.It is to be understood that speed changer, cooler be the present invention in heat control valve answer A kind of more typical occasion, it is clear that other than speed changer, can also be applied to other and need to carry out temperature control adjustment medium The occasion of flow path.

Specifically, the spool 40 in the present embodiment can be moved to switch the opening and closing of the first valve port B, the second valve port A, such as be schemed Shown in 3, spool 40, which moves to right, can block the first valve port B, open the second valve port A；Spool 40 moves to left again, can block the second valve port A, open Open the first valve port B.The opening and closing of first valve port B, the second valve port A, realize the switching of two kinds of flow paths, be applied to speed changer, When cooler, i.e., realization lubricating oil is cooling via cooler, or directly returns to speed changer without cooling.

The mobile specific implementation of spool 40, mainly passes through the reset spring 202 and memory spring in valve chamber 10a 201, memory spring 201 is i.e. by shape memory alloy material (SMA material.Shape Memory Alloy) made of spring.It is multiple Position spring 202, it is possible to provide make the spool 40 open the reset force of the first valve port B, in the embodiment, reset spring 202 is to draw Spring provides pulling force, to the left, tension spring can play the role of connecting spool 40, spool 40 direction of pull of spool provided in Fig. 3 40 can be processed the structure of a lateral H shape for axial cross section shown in figure, mitigate weight, easy to remove；Memory spring 201 is in temperature When degree is increased to particular value, elastic characteristic is activated, and has elastic potential energy to provide elastic force, elastic force direction and pulling force side To on the contrary, to drive the spool 40 to overcome reset force mobile.The particular value that above-mentioned 201 elasticity of memory spring is activated can basis The selection for needing to carry out material makes it carry out elevated temperature deformation under the environment temperature for needing to carry out path switching.

The working principle of the embodiment is as follows:

Working condition shown in Fig. 3, medium (lubricating oil of e.g. above-mentioned speed changer) are flowed into from first entrance 103 and are adjusted The valve chamber 10a of warm valve, since the second valve port A is closed, the first valve port B is opened, and medium flows to aperture 10c, straight line through the first valve port B Channel 10b, second outlet 104 return to speed changer；

After medium temperature is increased to particular value, it will be in working condition shown in Fig. 4, the spring of memory spring 201 Characteristic is activated, and the elastic force of generation is greater than the reset force of reset spring 202, and spool 40 in memory spring 201 and resets at this time To close to the movement of the direction of the first valve port B under the power difference of spring 202, spool 40 can block the first valve port B, open the second valve port A It opens.Medium from first entrance 103 inflow after, through the second valve port A, exit passageway 10d, first outlet 101 enter cooler into Row cooling, lubricating oil after cooling flows out by cooler, then enters valve chamber 10a from second entrance 102, and through beeline channel 10b, Second outlet 104, reenters speed changer；

Medium cooling and lower than after particular value, the spring performance of memory spring 201 will fail, and elastic force reduces, disappears, valve Again far from the first valve port B, the first valve port B unlatching under the reset force effect of reset spring 202, the second valve port A is closed, is returned core 40 To state shown in Fig. 3.As it can be seen that the memory spring 201 being arranged in the embodiment serves as the thermostatic element that driving spool 40 acts, Structure is simple.

In the embodiment, memory spring 201 and reset spring 202 are set between end cap 30 and spool 40, it is clear that setting Mode is without being limited thereto.

Please continue to refer to Fig. 6-7, Fig. 6 is the structure sectional view of heat control valve second embodiment provided by the present invention, the second valve Mouth A is closed, and the first valve port B is opened；Fig. 7 be Fig. 6 in spool 40 move to right after schematic diagram, the first valve port B close, the second valve port A It opens.

The embodiment and first embodiment are essentially identical, and memory spring 201 remembers bullet between end cap 30 and spool 40 One end of spring 201 is in contact with the other end of spool 40, and the other end of memory spring 201 is in contact with end cap 30.In valve body 10 Stepped hole is formed, macropore, that is, valve chamber 10a of stepped hole, aperture 10c and macropore joint form the first valve port B.Difference is, schemes Reset spring 202 provides screen resilience in 6 rather than pulling force, i.e. reset spring 202 and memory spring 201 can be divided into the two of spool 40 End, one end of reset spring 202 and one end of spool 40 abut against, and the other end and the valve body 10 of reset spring 202 abut against, with Direction opposite effect power is provided for spool 40.

Specifically reset spring 202 is set in aperture 10c, step, 202 precommpression of reset spring are equipped in aperture 10c Between spool 40 and the step, driving screen resilience of the spool 40 far from the first valve port B is provided, is acted on memory spring 201 The elastic force of spool 40 is contrary.At this point, the settable protrusion of the right end of spool 40 towards reset spring 202 is to be inserted into reset bullet In spring 202, play the role of assembling reset spring 202, while also positioning, Pilot poppet 40.

Certainly, step can also be not provided in aperture 10c, the right end of reset spring 202 directly abuts to beeline channel 10b Inner wall, or shrinkage pool is set in the inner wall of beeline channel 10b, the right end of reset spring 202 is directly connected in shrinkage pool；Reset bullet Spring 202 can be with precommpression between the cavity wall of the right part of spool 40 and valve chamber 10a.

In addition, the right end of spool 40 is its sealing in the first, second embodiment, the first valve port B can be blocked when moving to right； And the then sealing as the second valve port A of memory spring 201, when medium temperature is lower, memory spring 201 can be at compression simultaneously Tight form, and correspond to the position of the second valve port A, to block the second valve port A, when the heating of memory spring 201 is in expansion shape When state, anamorphic stretching, the diameter of memory spring 201 reduces, and occurs gap between the second valve port A, and memory spring 201 Also it will appear notch between several spring rings, the medium in valve chamber 10a can flow to the second valve port A cocurrent by gap and notch Out, at this point, the second valve port A is opened.As it can be seen that so set, the heat that memory spring 201 has acted not only as the driving movement of spool 40 is moved Element, but also it can be used as sealing, to simplify 40 structure of spool.

Certainly, the mode for blocking the second valve port A is without being limited thereto, can be tune provided by the present invention with continued reference to Fig. 8-11, Fig. 8 The structure sectional view of warm valve 3rd embodiment is in original state, and the first valve port B, which is opened, has default aperture, the second valve port A With initial default aperture；After Fig. 9 is increased to particular value for temperature in Fig. 8, the signal of the deformed heat control valve of memory spring 201 Figure, the first valve port B are closed, and the second valve port A is opened；Figure 10 is that temperature is reduced under particular value in Fig. 9, and memory spring 201 loses Heat control valve schematic diagram after going characteristic, the first valve port B are opened, and the second valve port A is closed；Figure 11 is that the structure of spool 40 in Fig. 8 is shown It is intended to.

In the embodiment, the second valve port A is also provided at the side cavity wall of valve chamber 10a, and the first valve port B is set to valve chamber 10a mono- The cavity wall at end.In contrast, the spool 40 also in embodiment is also additionally provided with sleeve part 402, and memory spring 201 is set to sleeve part In 402, between end cap 30 and spool 40, the right end of spool 40 forms the first sealing for blocking the first valve port B at this time, and Sleeve part 402 on spool 40 then forms the second sealing for blocking the second valve port A, and the specifically outer wall of sleeve part 402 can edge The sliding of valve chamber 10a side cavity wall, to block or open the second valve port A, memory spring 201 at this time is acted only as according to temperature change And the thermostatic element for driving spool 40 mobile.

Inner face for the assembly convenient for memory spring 201, end cap 30 towards spool 40 is equipped with boss, memory spring 201 One end is arranged boss.Spool 40 includes the sleeve part 402 of the main part 401 and coat part main part 401 that axially extend, main The left end in body portion 401 is protruded into sleeve part 402, and the other end of memory spring 201 is arranged the left end of main part 401.Spool 40 Sleeve part 402 and main part 401 can also may be integrally formed, as shown in figure 11 with parts processing.

In 3rd embodiment, stepped hole is also formed in, valve body 10 identical as the first and second embodiment, the macropore of stepped hole is Valve chamber 10a, the macropore of stepped hole and the joint aperture 10c form the first valve port B.In addition, the right side of 40 main part 401 of spool End is used as the first sealing, is also connected with guide rod 403, guide rod 403 can fission in main part 401 or be integrally formed In main part 401, guide rod 403 is inserted into the aperture 10c with the movement of Pilot poppet 40.Guiding is set on spool 40 Bar 403 is equally applicable in other embodiments with being inserted into the feature that aperture 10c is oriented to.As shown in figure 11, spool 40 towards first One end of valve port B can be hollow, with loss of weight, saves material.

In second embodiment, sealing of the right end of spool 40 as the first valve port B of sealing is equipped with boss insertion and resets bullet In spring 202, reset spring 202 is located in aperture 10c, can also play certain guiding role；But 3rd embodiment, directly to lead It is inserted into aperture 10c to bar 403 to be oriented to, guide effect is be more good.Since sleeve part 402 is arranged, at this time without small For hole 10c hole wall processing step to install reset spring 202, reset spring 202 can be connected to the end of sleeve part 402 and valve chamber 10a Between portion's cavity wall, as shown in Figure 8.

In addition, due to the setting of spool 40 sleeve part 402 in 3rd embodiment, sleeve part 402 and valve chamber 10a side cavity wall are sliding Dynamic cooperation is equipped with opening 402b (being the lower section of bottom in Fig. 8) close to the position of the first valve port B in 402 bottom of sleeve part, so as to Medium can flow into the inner cavity of sleeve part 402, to flow to the second valve port A.Note faster, is more touched for the ease of medium Recall spring 201,402 bottom of sleeve part in Fig. 8 is additionally provided with and passes through in the position (top of bottom in Fig. 8) far from the first valve port B The introducing port 402a of logical bottom, as drain flow path, introducing port 402a is connected to the inner cavity of valve chamber 10a and sleeve part 402.Introducing port 402a can be the quantity of one or more.

It is worth noting that, the left end of 40 main part 401 of spool is equipped with lug bosses at end part 401a, first in 3rd embodiment One end of memory spring 201 when dispatching from the factory, is looped around the position lug bosses at end part 401a, contradicted in lug bosses at end part by beginning state It is the initial position of 201 end of memory spring, at this time as shown in figure 8, first on the step surface that 401a and main part 401 are formed Valve port B is not fully opened, has default aperture, and the second valve port A also has initial default aperture, so that the heat control valve is first The characteristic that beginning state has the second valve port A normally opened, consequently facilitating while original state fills lubricating oil to speed changer, it can also To inject lubricating oil into cooler, meets the needs of initial fill.That is, two valve ports are opened.

Later, after lubricating oil temperature is increased to particular value, memory spring 201 is deformed, and has certain expansion, thus de- From lug bosses at end part 401a, it is surrounded to the bigger main part 401 of outer diameter, hereafter memory spring 201 is switched to normal operating conditions, will Main part 401 can be looped around always, as shown in figure 9, and deform and abut to the bottom position of sleeve part 402, which is work Make position, at this point, the first valve port B continues to close under the resilient force of memory spring 201.Memory spring described in the text The initial position of 201 ends and operating position all refer to end and valve body 10 (10 valve chamber cavity wall of valve body or end cap 30) or spool 40 relative position does not change with the movement of spool 40.

When temperature is lower than particular value, memory spring 201 loses characteristic, under the reset force effect of reset spring 202, valve Core 40 is mobile and compresses memory spring 201.Due to the distance of 402 bottom of sleeve part and end cap 30 be greater than 401 boss of main part and The distance of end cap 30, after memory spring 201 is detached from from 401 boss of main part and is surrounded to main part 401, spool 40 is multiple Can be further towards end cap 30 under the action of the spring 202 of position, then sleeve part 402 can block the second valve port A, eliminate initial pre- If aperture, as shown in Figure 10.

It is found that the embodiment provides a kind of set-up mode, i.e., two stage steps are arranged on spool 40, and (level-one step surface is held Step surface between portion boss 401a and main part 401,402 bottoms of two stage steps face, that is, sleeve part), level-one, two stage steps Face is respectively formed initial position and operating position.When memory spring 201 is located at initial position, the first valve port B has default aperture, And the distance between spool 40 and the first valve port B, are located at less than memory spring 201 when memory spring 201 is located at initial position Operating position and the distance between when temperature is under particular value spool 40 and the first valve port B.

In the case where 40 position of spool is certain, initial position is less than operating position and end cap 40 at a distance from end cap 40 Distance, such memory spring 201 is under arbitrary temp environment (not to be influenced) by particular value, and the first valve port B is held at closing State, and then there is the second valve port A default aperture (to be such as not provided with the second valve port A, then medium can then flow directly into first outlet 104).Behind operating position, the distance between 40 operating position of end cap 30 and spool is longer, and such reset spring 202 can Band movable valve plug 40 compresses the more distances of memory spring 202, to open the first valve port B, the second valve port A can be closed.

It is appreciated that initial position, operating position setting, be between adjusting spool 40 and end cap 30 or valve body 10 away from From so that the distance between 201 both ends of memory spring compressible degree under two kinds of operating positions is different, and then realizing the One valve port B is closed or opened.Therefore, initial position, operating position can also set with spool 40 or valve body 10, equally can be with It is realized by way of two stage steps, and initial, operating position or spool 40 can be arranged in both spool 40 and valve body 10 Initial, operating position can be set with 30 the two of end cap, the both ends of such memory spring 201 can be connected to initial bit It sets or operating position.

In above-described embodiment, first outlet 101, second entrance 102, second outlet 104, first entrance 103 are set to institute The side wall of valve body 10 is stated, the first valve port B is set to the end cavity wall of valve chamber 10a, and the second valve port A is set to the side cavity wall of valve chamber 10a. Wherein, second outlet 104 and second entrance 102 are opposite, form beeline channel 10b (following other embodiments also shape therebetween Be in line channel 10b), the first valve port B is connected to beeline channel 10b, above-described embodiment particular by stepped hole aperture 10c It is connected to beeline channel 10b.So set, first entrance 103 and second entrance 102, the two, which can share one section and flow to second, to be gone out The access of mouth 104, so that structure is simplified, it is easy to process.It is of course also possible to take other set-up modes.

Temperature adjustment valve inlet, outlet, the setting of valve port can also have other modes.

Figure 12-15 is please referred to, Figure 12 is the structure sectional view of heat control valve fourth embodiment provided by the present invention, in initial State, the first valve port B have default aperture, and the second valve port A has default aperture；Figure 13 is that temperature is increased to particular value in Figure 12 Afterwards, the deformed heat control valve schematic diagram of memory spring 201, the first valve port B are closed, and the second valve port A is opened；Figure 14 is Figure 13 medium temperature Degree is reduced under particular value, and memory spring 201 loses the heat control valve schematic diagram after characteristic, and the first valve port B is opened, the second valve port A is closed；Figure 15 is the structural schematic diagram of end cap 30 in Figure 12.

In the embodiment, end cap 30 actually not only covers the port position of valve body 10, and becomes a kind of adapter Structure can specifically be connected to cooler in the present embodiment as the interface outside connection.The adapter, which is equipped with, to be penetrated through inside and outside it Channel, the channel form exit passageway 10d, inner port, that is, the second valve port A of exit passageway 10d, and external port i.e. first goes out Mouth 101.At this point, axial direction distribution of the second valve port A and the first valve port B along valve chamber 10a, in this way, spool 40 is in moving process, One end can be the first sealing, and to block the first valve port B, the other end is the second sealing, block the second valve port A.So set, Closure of the spool 40 for the first valve port B and the second valve port A, more convenient in operation, spool 40 is more readily processed.The embodiment In, other than forming the first outlet 101 of heat control valve in addition to end cap 30 is adapter base structure, second outlet 104, second entrance 102 and first entrance 103, it is also the formation of external connector 50 on valve body 10, and as above first into 3rd embodiment, and it is outer The outlet of boundary's connection, entrance form nipple structure directly on valve body 10, both schemes are feasible in all realities of this programme Apply example.

In addition, in the fourth embodiment, equally having carried out the setting of initial default aperture.It can refer to Figure 15 understanding, turn Joint chair is equipped with two-stage step towards the inner end of spool 40, and level-one outer diameter of step is less than two stage steps outer diameter, is respectively formed towards valve The level-one step surface 301 of core 40 and two stage steps face 302, I and II step surface are respectively initial position, operating position.Then valve Core 40 is less than spool 40 at a distance from operating position at a distance from initial position.In this way, in the original state of factory, memory spring 201 left end is looped around at the level-one step of spool 40, is contradicted in level-one step surface 301, at this point, the first valve port B is closed, second Valve port A has initial default aperture, as shown in figure 12, so that the heat control valve has the second valve port A normally opened in original state Characteristic, consequently facilitating lubricating oil can also be injected into cooler while original state fills lubricating oil to speed changer, it is full The demand of sufficient initial fill.Certainly, when being not provided with the second valve port A, memory spring 201 is connected to initial position, the first valve port B It closes, lubricating oil can be flowed to first outlet 101 with direct current and inject cooler.

Later, after lubricating oil temperature is increased to particular value, memory spring 201 is deformed, and has certain expansion, thus de- From level-one step, two stage steps are surrounded to, hereafter memory spring 201 is switched to normal operation position, it will be looped around two always Grade step, as shown in figure 13, also deformation contradicts in two stage steps face 302, at this point, the first valve port B is remembering memory spring 201 simultaneously Recall and continues to close under the resilient force of spring 201.

When temperature is lower than particular value, memory spring 201 loses characteristic, under the reset force effect of reset spring 202, valve Core 40 is mobile and compresses memory spring 201.Due to the distance in two stage steps face 302 and spool 40, it is greater than 301 He of level-one step surface The distance of spool 40, after memory spring 201 is detached from from level-one step and is surrounded to two stage steps, spool 40 is in reset spring Can be further towards end cap 30 under the action of 202, then the left part of spool 40 can block the second valve port A, eliminate initial pre- If aperture, the first valve port B is now in open state.

In fourth embodiment, spool 40 is outer towards the end (left part, i.e. the second sealing in Figure 12) of the second valve port A Week is tapered, that is, has the conical surface cooperated with the second valve port A, in order to preferably block the second valve port A, and has the work of guiding With at this point, the left part of spool 40 is additionally provided with ring week protrusion, as shown in figure 12, note for the ease of contradicting with memory spring 201 The right end for recalling spring 201 is contradicted in ring week protrusion.Spool 40 is towards end (right part in Figure 12, i.e., first of the first valve port B Sealing), there is boss, can be inserted into reset spring 202.Reset spring 202 is placed in aperture 10c.

Spool 40 can also be other structures, and as shown in figs. 16-17, Figure 16 is heat control valve the 5th provided by the present invention implementation The structure sectional view of example is in original state, and the first valve port B has default aperture, and the second valve port A has default aperture；Figure 17 After being increased to particular value for temperature in Figure 16, the deformed heat control valve schematic diagram of memory spring 201, the first valve port B is closed, and second Valve port A is opened；Figure 18 is that temperature is reduced under particular value in Figure 17, and memory spring 201 loses the heat control valve signal after characteristic Figure, the first valve port B are opened, and the second valve port A is closed.

Identical as fourth embodiment in the embodiment, difference is only that the structure of spool 40, and spool 40 is spherical, ball The spool 40 of shape can play better plugging effect when carrying out the first valve port B, the second valve port A closure.Remaining embodiment In, spherical valve core 40, or the part at least blocked can also be used to be processed as spherical surface.

In 5th embodiment, also in two-stage step is arranged on the end cap 30 of adapter base structure, have memory spring 201 There is initial configuration, forms initial default aperture, injected convenient for cooling oil into cooler.

It about 40 structure of spool, can also continue to understand with reference to Figure 19, Figure 19 is that heat control valve the 6th provided by the present invention is real The structure sectional view of example is applied, the first valve port B is closed, and the second valve port A is opened；Figure 20 is the structural schematic diagram of spool 40 in Figure 19.

Identical as fourth, fifth embodiment in the embodiment, difference is that 40 structure of spool includes the spherical portion being connected 404 and sealing plate 405.Spherical portion 404 is for blocking the second valve port A, and sealing plate 405 is for blocking the first valve port B.Sealing plate 405 towards spherical portion 404 one side be equipped with shrinkage pool 405a, enable spherical portion 404 to be partially submerged into shrinkage pool 405a and fix, thus It is easy to implement the fixation of the two；The another side of sealing plate 405 is equipped with protrusion, to be inserted into reset spring 202, plays positioning, leads To, convenient for reset spring 202 install effect.At this point, spherical portion 404 is not necessarily to while meeting the closure of two valve ports, bullet is remembered Spring 201 is between end cap 30 and sealing plate 405.

It please see Figure the structure sectional view that 21, Figure 21 is the 7th embodiment of heat control valve provided by the present invention again, the first valve port B is closed It closes, the second valve port A is opened.

For the embodiment compared with the 4th to sixth embodiment, same difference is only that the structure of spool 40.Spool 40 is in column Shape, both ends of the surface are respectively used to sealing the first valve port B and the second valve port A, also are provided with protrusion on one side towards the first valve port B, with It is inserted into reset spring 202, plays the role of positioning, guiding, convenient for the installation of reset spring 202.

Please continue to refer to Figure 22-25, Figure 22 be the 8th embodiment of heat control valve provided by the present invention structure sectional view, first Valve port B is opened, and the second valve port A is closed；Figure 23 is the heat control valve schematic diagram in Figure 22 after 201 elevated temperature deformation of memory spring, first Valve port B is closed, and the second valve port A is opened；Figure 24 is that end cap 30 and spool 40, reset spring 202, memory spring 201 are pacified in Figure 22 Schematic diagram after dress；Figure 25 is the stereoscopic schematic diagram of Figure 24.

Compared with the four to seven embodiment, the second valve port A is also provided with end cap 30 (end cap is not in the embodiment Using adapter base structure), but first outlet 101 is still set to the side wall of valve body 10.At this point, the company of opening up on end cap 30, valve body 10 The exit passageway 10d of logical first outlet 101, the second valve port A, exit passageway 10d are effectively equivalent to L shape, as shown in figure 22. It is similar with the second valve port location A of example IV to seven, so that the closure that spool 40 is moved and carried out is more convenient.

In addition, end cap 30 is equipped with jack in the embodiment, heat control valve separately sets a valve rod 60, and one end of valve rod 60 can be along axis Fixed into insertion jack, the other end stretches out end cap 30, and the other end that valve rod 60 stretches out end cap 30 can be inserted into spool 40, with valve Core 40 is slidably matched.In this way, spool 40 in moving process, can be moved along valve rod 60, to play good positioning, guiding is made With.

As shown in Figure 24,25,30 periphery of end cap forms circular passage, flows to first outlet 101 convenient for medium.In Figure 24, The left part of end cap 30 is used to block the left end port of valve chamber 10a, and right part forms the second valve port A, also has therebetween There is connector, valve rod 60 is inserted into connector from the second valve port A and enters left part.The left part of end cap 30, right part, connector Integrally formed, structure is reliable, realizes the reliable installation of valve rod 60, memory spring 201, can be reloaded into valve chamber after the assembly is completed In 10a.The left part of certain end cap 30, right part, connector can also fission link together.

Obviously, valve rod 60 is also applied for other embodiments, is set to the end cap 30 of adapter base structure for first outlet 101 For embodiment, as shown in figure 19, the channel of end cap 30 is can be inserted in valve rod, and the end of valve rod can be fixed on logical by connector The side wall in road.

It should be noted that the valve rod 60 and end cap 30 in the 8th embodiment are fixed, it will be understood that valve rod 60 can also be consolidated It due to spool 40, and is slidably matched with end cap 30, in contrast, valve rod 60 is fixed on end cap 30 and makes the operation of spool 40 more flat Surely, reliably.

Here the settable through hole of spool 40, convenient for being slided along valve rod 60.In addition, the right end periphery wall in spool 40 is set There is diaphragm seal 40 ', diaphragm seal 40 ' is used as the first sealing, for blocking the first valve port B.In order to install reset spring 202, The periphery wall of 40 right end of spool is also set to annular groove, and one end of reset spring 202 is embedded in annular groove, the other end against At the step of aperture 10c, it is of course also possible to the inner wall of beeline channel 10b or the end cavity wall of valve chamber 10a are directly abutted, Embodiment as above has statement, does not repeat.

About diaphragm seal 40 ', can also be processed as one formula structure with spool 40, and as shown in figure 25, Figure 25 is the present invention The structure sectional view of provided the 9th embodiment of heat control valve, the first valve port B are closed, and the second valve port A is opened.Diaphragm seal 40 ' and valve When core 40 is integrally machined, there is more structurally sound intensity, reset spring 202 can abut directly against on diaphragm seal 40 ', Tu25Zhong Shown in 202 precompressed of reset spring shrink on the step and diaphragm seal 40 ' of aperture 10c.Various embodiments of the present invention make spool 40 Various deformation designs out, and 40 structure of spool in each embodiment can be replaced.

It is worth noting that, each embodiment is directed to, when first entrance 103 is set to 10 side wall of valve body, in order to improve spool 40 mobile reliabilities, spool 40 can be designed as, the inner wall with valve chamber 40 is slidably matched at least partially, can prevent in this way Impact is generated with spool 40 or memory spring 201 when fluid flows into.

Please continue to refer to Figure 27-29, Figure 27 be the tenth embodiment of heat control valve provided by the present invention structure sectional view, first Valve port B is opened, and the second valve port A is closed；Figure 28 be Figure 27 in spool 40 move to right after schematic diagram, the second valve port A open, the first valve Mouth B is closed；Figure 29 is the schematic diagram of spool 40 in Figure 27.

In the embodiment, spool 40 is moved axially along valve chamber 10a, and part and the inner wall of valve chamber 10a are slidably matched.Its In, the first valve port B is located at the end cavity wall of valve chamber 10a, i.e., axial cavity wall, the second valve port A is located at the side cavity wall of valve chamber 10a, I.e. radial cavity wall.First entrance 103 and the second valve port A are opposite in this programme, specifically, connect first entrance 103 and valve chamber 10a Intake channel 10e, it is opposite with the second valve port A, the position exit passageway 10d.In this way, first entrance 103 and first outlet 101 it Between access be linear passages, as shown in figure 28, when the second valve port A open when, medium can flow out via the linear passages, respond More quickly.

This 40 structure of embodiment spool is similar with embodiment three, spool 40 includes sleeve part 402, as blocking the second valve port The second sealing of A.Memory spring 201 is set in sleeve part 402, between spool 40 and end cap 30.Certainly, using other 40 structure of spool, or it is also feasible for blocking the second valve port A using memory spring 201.

In addition, the edge of 402 open end of sleeve part is equipped with notch 402c in the tenth embodiment, enter as medium is imported Drain flow path in sleeve part 402.As shown in figure 27, when sleeve part 402 blocks the second valve port A, medium can be through the notch The position 402c enters in sleeve part 402, so that memory spring 201 can touch the medium after heating in time, and When be deformed.It is appreciated that drain flow path is not limited to notch 402c shown in figure, for example, can also be in sleeve part 402 Side wall, bottom opening.

It should be noted that the exit passageway 10d and intake channel 10e of the embodiment are oppositely arranged, when sleeve part 402 is sliding When dynamic cooperation valve chamber 10a inner wall, in order to avoid also blocking the access between medium and the first valve port B, Tu27Zhong, sleeve part 402 Outer wall corresponding with the second valve port A is slidably matched with valve chamber 10a inner wall, and sleeve part 402 and intake channel 10e, first There is gap, to guarantee that medium can flow to the first valve port B between the corresponding outer wall of entrance 103 and valve chamber 10a inner wall.I.e. Two sealings only need to seal the second valve port A, towards the part of intake channel 10e, need to be equipped with gap with valve chamber 10a inner wall. As shown in figure 27, the central axis of the central axis of valve chamber 10a and spool 40 deviates, portion of the valve chamber 10a with respect to intake channel 10e Point indent, it is of course possible to understand, valve chamber 10a can not also indent, 40 relative axis of spool is set as eccentric structure can also be with.This The mode that kind 40 part of spool and valve chamber 10a inner wall are slidably matched not only had met stability protecting against shock, but also has been convenient for the circulation of fluid.

In addition, forming second level stepped hole in the embodiment in the valve body 10 of heat control valve, largest hole is the valve chamber 10a, in Between hole and largest hole joint form the first valve port B.So set, the mobile stroke for blocking the first valve port B of spool 40 is contracted It is short, certainly, still as above-described embodiment setting is also applicable including macropore, the stepped hole of aperture.

The second entrance 102 and second outlet 104 of the embodiment are also opposite, form beeline channel 10b between, multiple Position spring 202 runs through minimum aperture, is compressed between spool 40 and the inner wall of beeline channel 10b, and inner wall can be set for resetting bullet The groove of 202 end of spring insertion, it is clear that be compressed in valve chamber 10a end wall, or step is set in minimum aperture, be compressed in step and spool 40.

It should be noted that the valve chamber 10a of formation is the cavity that one end has port in above embodiments, set at port There is end cap 30, memory spring 201 is set between end cap 30 and spool 40.This mode is convenient for the machining on valve body 10 to form valve Chamber 10a, it is to be understood that, valve chamber 10a structure is not limited to this.For example, when using such as casting technique, the both ends valve chamber 10a Can there is no port, be not provided with end cap, then memory spring 201 and reset spring 202 (first embodiment) can be set to valve chamber Between 10a cavity wall and spool 40.

The purpose that can be seen that setting two stage steps from the embodiment of default aperture is the spy using memory spring 201 Property, operating position can be switched to from initial position after the dilatancy that heats up, and be maintained at operating position.Therefore, also unlimited In setting two stage steps, for example, annular groove is arranged in the end of spool 40, it is recessed that the end of memory spring 201 is looped around annular It in slot, after heating, is detached from out of annular groove, contradicts and arrive other positions, as operating position, it is initial pre- also to can be realized setting If the purpose of aperture.

In above-described embodiment, the mobile control element of heat control valve control valve core 40 is memory spring 201, compared to ring spring Around the scheme of thermostatic element, the response time of memory spring 201 faster can open the second valve port A so that medium is cut in time Shift to another flow path.When being specifically employed to cooler and speed changer, the performance of speed changer can be promoted, prevents speed changer from damaging It is bad.

At the same time, which does not need that thermostatic element additionally is arranged, and structure is simple, easy for installation, so that entire adjust Warm valve lighter in weight, volume are also smaller.

It should be noted that above-described embodiment is illustrated so that the first valve port B, the second valve port A is arranged in valve body 10 as an example, It is appreciated that it is also possible to be not provided with the second valve port A.For being applied to gearbox, cooler, when the first valve port B is closed When, medium (such as lubricating oil) can flow directly into cooler；When the first valve port B is opened, even without the second valve port A, only There is the exit passageway of connection first outlet 101, since cooler is connected to first outlet 101, the flow resistance meeting of 101 flow path of first outlet Greater than the flow resistance for flowing directly into 104 flow path of second outlet through the first valve port B, therefore, medium majority can flow to through the first valve port B Two outlets 104.Certainly, the second valve port A is set, carries out open/close states switching with the first valve port B, more can clearly distribute Jie Flow path of the matter under different demands reduces leakage in system.

In addition, when being not provided with the second valve port A, in the initial position mentioned, in the embodiment of operating position, can design so that When memory spring 201 is in initial position, the first valve port B is being closed, in this way, lubricating oil can be flowed into directly from first outlet 101 Cooler is to play the role of filling lubricating oil under original state.Meanwhile second entrance 102 should be set, then the first valve port B also can Be connected to second entrance 102 so that from the lubricating oil that second entrance 102 flows into can also fill the first valve port B and speed changer it Between access, complete the oiling process of whole system.

When the second valve port A is arranged, the first valve port B can have default aperture described in embodiment as above, can also close, When closed, equally, it is preferably provided with the second entrance 102 being connected to second outlet 104 in the valve body 10 of heat control valve, so that from The lubricating oil that two entrances 102 flow into can also fill the access between the first valve port B and speed changer.Certainly, initial position first When valve port B has default aperture, the available filling of access before the first valve port B and speed changer, valve body 10 and unlimited at this time Second entrance 102 is set surely, and the outlet of cooler can also be connected to speed changer by other accesses.

Regardless of whether the second valve port A of setting is set to when carrying out the filling of original state convenient for cooler: memory The distance between spool 40 and the first valve port B when spring 201 is located at initial position are less than memory spring 201 and are located at operating position And temperature the distance between spool 40 and the first valve port B when being under particular value.In this way, making at memory spring 201 When below particular value temperature, length is different, to realize that the first valve port B and/or the second valve port A has in initial, operating position There is different aperture adjustment.

The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as Protection scope of the present invention.

Claims

1. a kind of heat control valve, including end cap, valve body and the spool in the valve body valve chamber, heat control valve have first outlet, Second outlet, the first entrance being connected to the valve chamber, the valve chamber and described second can be connected to by, which also opening up in the valve body, goes out First valve port of mouth, when the spool is mobile, the spool is openable or closes first valve port；It is characterized in that,

Reset spring and memory spring are additionally provided in the valve chamber, the memory spring is made of memorial alloy；The reset bullet Spring provides the reset force for making the spool open first valve port；One end of one end of the reset spring and the spool It abuts against, the other end of the reset spring is abutted against with the valve body；One end of the memory spring and the other end of spool It is in contact, the other end of the memory spring is in contact with the end cap, and the memory spring is when temperature is increased to particular value Elastic force is generated to drive the spool to overcome the reset force mobile, closes first valve port；

At least part of the spool outer wall and the inner wall of the valve chamber are slidably matched, and the first entrance is set to the valve body Side wall.

2. heat control valve as described in claim 1, which is characterized in that the heat control valve is additionally provided with the second valve port, and described second Valve port is set to the side cavity wall of the valve chamber, opposite with the first entrance；The spool includes blocking described first respectively First sealing of valve port, the second sealing for blocking second valve port；Second sealing is towards the first entrance Part, between the inner wall of the valve chamber have gap.

3. heat control valve as claimed in claim 2, which is characterized in that the spool is equipped with sleeve part, described memory spring one end It is protruded into the sleeve part from the open end of the sleeve part；

The sleeve part forms second sealing, and the part that the sleeve part outer wall corresponds to second valve port can be sealed Second valve port is blocked up, and the sleeve part outer wall has corresponding between the part of the first entrance and the inner wall of the valve chamber There is gap.

4. heat control valve as claimed in claim 3, which is characterized in that the spool or the end cap are provided with initial position and work Make position, the memory spring at least one end part is in the valve body or the initial position of the spool, in the memory spring When positioned at initial position, first valve port is in close state；It is described after deformation when the memory spring is warming up to particular value End can be detached from the initial position and be held in the operating position；

In the operating position, the memory spring generates elastic force when temperature is increased to particular value to drive the spool gram It is mobile to take the reset force, closes the firstth valve port；After the memory spring is cooled to the particular value or less, the note Recall spring and lose characteristic, the reset spring drives first valve port to open.

5. heat control valve as claimed in claim 3, which is characterized in that the sleeve part outer wall, which is equipped with, is connected the valve chamber and described The drain flow path of sleeve part inner cavity.

6. heat control valve as claimed in claim 5, which is characterized in that the edge of the sleeve part open end is equipped with several notches, The notch forms the drain flow path.

7. heat control valve as claimed in any one of claims 1 to 6, which is characterized in that form second level stepped hole in the valve body, most Macropore is the valve chamber, and interstitial hole and the largest hole joint form first valve port, the second outlet and described the Two entrances are set to the side wall of the valve body, and are oppositely arranged, and form beeline channel therebetween, and the reset spring runs through institute Minimum aperture is stated, is compressed between the spool and the inner wall of the beeline channel.

8. heat control valve as claimed in claim 7, which is characterized in that the inner wall of the beeline channel is equipped with groove, the reset One end of spring is located in the groove.

9. heat control valve as claimed in any one of claims 1 to 6, which is characterized in that be additionally provided with the second of the connection second outlet Entrance, the first outlet, the second entrance, the second outlet, the first entrance are set to the side wall of the valve body； The second outlet and the second entrance are opposite, form beeline channel therebetween, and first valve port is connected to the straight line Channel.

10. heat control valve as claimed in any one of claims 1 to 6, which is characterized in that be additionally provided with the of the connection second outlet Two entrances, the first outlet and the second entrance are separately connected cooler entrance and cooler outlet；The first entrance Speed changer outlet and speed changer entrance are separately connected with the second outlet.