CN108266520B - Temperature regulating valve - Google Patents

Abstract

The invention discloses a temperature regulating valve, which comprises a valve body, a first elastic element, a second elastic element, a valve seat assembly, a valve core and a thermal element, wherein the temperature regulating valve comprises six interfaces and four valve port parts which respectively form a valve port: a first valve port part, a second valve port part, a third valve port part and a fourth valve port part; the temperature regulating valve comprises a first cavity and a second cavity which are not communicated with each other, one of a third interface, a fourth interface and a sixth interface of the six interfaces is communicated with the second cavity, and the other two interfaces can be respectively communicated with the second cavity through a valve port; one of the first port, the second port and the fifth port of the six ports is communicated with the first cavity, and the other two ports can be respectively communicated with the first cavity through one valve port.

Description

Temperature regulating valve

Technical Field

The invention relates to the field of fluid control, in particular to a temperature regulating valve capable of changing the fluid flow mode along with the temperature change.

Background

During the running process of the automobile, all parts of the automobile need to be lubricated by lubricating oil in time to ensure the normal running of the automobile. If the lubricating performance of the lubricating oil is not good enough, the service life of the automobile can be influenced, for example, the gearbox oil and the like, and the gearbox oil generally realizes temperature regulation through a temperature control flow path consisting of a temperature regulating valve and a heat exchange device for external cooling. When the temperature of the oil way of the gearbox rises, the thermosensitive substance of the thermal element is heated to expand, the gearbox oil directly flows back to the channel of the gearbox to be sealed or the flow of the channel is reduced, and the high-temperature oil enters the heat exchange device for external cooling to be cooled and then flows back to the gearbox. On the contrary, when the oil temperature is too low, the thermosensitive substances of the thermal actuator begin to solidify and contract, the ejector rod resets, and the channel for directly flowing the gearbox oil back to the gearbox is opened. The oil in the oil way of the gearbox exchanges heat with the heated gearbox components in the flowing process, so that the oil temperature is controlled in a proper range. With the development of vehicle technology, at present, transmission oil can also be subjected to heat exchange with cooling fluid in advance, and a temperature regulating component or a temperature regulating valve for controlling temperature adopts different modes.

Disclosure of Invention

The technical scheme of the invention is to provide a temperature regulating valve with a new structure, and simultaneously two fluids can be controlled, so the invention adopts the following technical scheme:

a temperature regulating valve comprises a valve body, a first elastic element, a second elastic element, a valve seat assembly, a valve core and a thermal actuator, wherein the valve seat assembly comprises a valve seat, the valve body comprises a first valve body and a second valve body, and the first elastic element, the second elastic element, the valve seat assembly, the valve core and the thermal actuator are arranged in the valve body; the temperature regulating valve comprises a first cavity and a second cavity, the first cavity and the second cavity are isolated from each other and are not communicated, the first valve port part is positioned in the second cavity, the fourth valve port part is positioned in the first cavity, the first elastic element is positioned in the second cavity, the second elastic element is positioned in the first cavity, part of the thermal element is positioned in the first cavity, the other part of the thermal element is positioned in the second cavity, one end of the thermal element is abutted against the first elastic element, and the other end of the thermal element is abutted against the second elastic element; one of the third port, the fourth port and the sixth port is communicated with the second cavity, and the other two ports can be communicated with the second cavity through a valve port; one of the first interface, the second interface and the fifth interface is communicated with the first cavity, and the other two interfaces can be communicated with the first cavity through a valve port.

The first valve port part can be arranged on the second valve body or a second valve body component, the fourth valve port part is arranged on the first valve body or a first valve body component, and the first valve body or the first valve body component and the second valve body or the second valve body component are relatively fixed or limited; the valve seat assembly comprises the second valve port part and a third valve port part, the valve seat assembly is partially positioned in the first cavity, partially positioned in the second cavity or forms a part of the second cavity, the valve seat assembly comprises a partition part, the partition part is matched with the thermal element, two sides of the partition part are not communicated, and the first cavity is not communicated with the second cavity; the third port is communicated with a second cavity, the fourth port can be communicated with the third port through the first port of the first port part, the sixth port can be communicated with the third port through the second port of the second port part, and at least one of the fourth port and the sixth port is communicated with the second cavity; the second port is communicated with the first cavity, the first port can be communicated with the second port through the fourth port of the fourth port part, the fifth port can be communicated with the second port through the third port of the third port part, and at least one of the first port and the fifth port is communicated with the first cavity.

The valve seat assembly comprises a valve seat and at least one sealing element limited at the outward part of the valve seat, and the sealing element at the outward part of the valve seat is positioned between the valve seat and the inner wall part of the valve body and is used for being matched with the inner wall part of the valve body to realize sealing; the valve seat assembly is arranged opposite to the thermal actuator in a sealing mode, the valve seat assembly is matched with the thermal actuator to enable the first cavity and the second cavity of the valve body not to be communicated, the thermal actuator comprises a push rod, and one end of the push rod penetrates through the valve seat assembly to be partially located in the first cavity.

The valve seat assembly comprises a valve seat, at least one sealing element limited at the outward part of the valve seat and at least one sealing element limited at the inward part of the valve seat, wherein the sealing element limited at the outward part of the valve seat is positioned between the valve seat and the inner wall part of the valve body and is used for being matched with the inner wall part of the valve body to realize sealing; the heat actuated element comprises an ejector rod and a body part, and a sealing piece at the inward part of the valve seat is positioned between the valve seat and the ejector rod and is used for being matched with the ejector rod to realize dynamic sealing.

The thermal element can be matched with the first valve port part and the second valve port part to enable the first valve port or the second valve port to be not communicated, and the valve core can be matched with the third valve port part and the fourth valve port part to enable the third valve port or the fourth valve port to be not communicated; the tempering valve comprises at least two working modes: a first operating mode, a second operating mode, wherein in the first operating mode: the thermal element is in an initial state or the length of the thermal element is relatively short, the thermal element is matched with the second valve port part to enable the second valve port to be basically non-conductive, the valve core is matched with the third valve port part to enable the third valve port to be basically non-conductive, the thermal element does not close the first valve port part, the valve core does not close the fourth valve port part, and the first valve port and the fourth valve port can be conducted; in the second operating mode: the thermal element is in a state of relatively high temperature or the length of the thermal element is relatively long, the second valve port and the third valve port can be conducted, the thermal element is matched with the first valve port part to enable the first valve port to be basically not conducted, and the valve core is matched with the fourth valve port part to enable the fourth valve port to be basically not conducted.

The temperature regulating valve further comprises a third cavity, the first cavity and the third cavity are arranged in a sealing mode, the third cavity is located between the first cavity and the second cavity, the second interface is communicated with the first cavity, the third interface is communicated with the second cavity, and the sixth interface is communicated with the third cavity; the third cavity can be communicated with the second cavity through a second valve port of the second valve port part; the valve seat assembly comprises at least two first columnar parts, at least one second columnar part and a separating part, wherein the separating part is relatively positioned between the first columnar part and the second columnar part; the valve seat assembly is provided with the second valve port portion and a third valve port portion, the second cylindrical portion connects the second valve port portion and the partition portion, and the second cylindrical portion is located between the second valve port portion and the partition portion.

The valve seat assembly may further include an annular portion having a substantially semicircular ring shape, two first columnar portions connecting the annular portion and the partition portion, an inward surface of the first columnar portion having a substantially circular arc-shaped configuration when viewed from the axial direction, an axial direction extending substantially in the columnar configuration, an inward surface of the annular portion having a circular arc-shaped configuration when viewed from the axial direction, the annular portion and the first columnar portions being part of the third valve portion, and the valve element being slidably fitted to the inward surfaces of the annular portion and the first columnar portions.

The valve body comprises two steps in a direction relatively close to the first interface: the valve core is in sliding fit with an inner wall part of a cavity formed between the first step part and the second step part; the valve core comprises a supporting part, one end of the second elastic element is abutted with the supporting part of the valve core, the thermal element is abutted with the second elastic element through the valve core, and the other end of the second elastic element is abutted with the second step part of the valve body.

The thermal actuator comprises a push rod and a thermal actuator body, the thermal actuator body comprises a second part and a first part, the second part and the first part are relatively fixedly arranged, the first part is positioned between the second part and the push rod, and the push rod can move relative to the second part and the first part when the temperature changes; the second part is at least partially positioned in the second cavity, the ejector rod penetrates through the partition part to enable one end of the ejector rod to be positioned in the first cavity, the thermal actuator is abutted with the first elastic element through the second part, and the thermal actuator is abutted with the second elastic element through the ejector rod; the first valve port part is of a step-shaped structure, the second part is matched with the first valve port part, and at least part of the second part is larger than the hole of the step-shaped structure of the first valve port part; the second valve port part is of an annular structure, the first part is matched with the second valve port part, and at least part of the first part is larger than the hole of the annular structure of the second valve port part.

The initial deformation force of the first elastic element is smaller than that of the second elastic element, and the initial deformation force of the second elastic element is larger than the elastic force generated by the deformation of the first elastic element when the second part of the thermal actuator abuts against the first valve opening part; the valve core is matched with the fourth valve port part to enable the fourth valve port to be basically non-conductive, the valve core is matched with the third valve port part to enable the third valve port to be basically non-conductive, the valve core can abut against the valve seat when the third valve port is basically non-conductive, and the axial distance (L) from the end face of the valve core abutting against the first step part is larger than the axial height (h) of the valve core; the valve core is at least partially approximately cylindrical or columnar in shape, and the maximum distance between the inward wall parts of the two first columnar parts is larger than the outer diameter of the valve core; the second elastic element is abutted with the ejector rod through the valve core.

First valve body andor second valve body can combine machining through metal casting's mode to form or stamping forming machining again or adopt thermoplastic plastic material or thermosetting plastic material to form through injection molding processing, or for the section bar forms through machining, first valve body and second valve body still are provided with at least one sealing member through bolt fixed connection or through buckle fixed connection between the two.

Therefore, the temperature regulating valve can control two fluids simultaneously only by one thermal element, so that the system is simpler.

Drawings

FIG. 1 is a perspective view of a thermal management assembly with a thermostat valve and heat exchanger combined in accordance with an embodiment of the present invention.

Figure 2 is a schematic front view of the thermal management assembly shown in figure 1.

Figure 3 is a schematic view of the thermal management assembly of figure 2 taken along section a-a.

Fig. 4 is a perspective view of the thermostat valve shown in fig. 1.

Fig. 5 is a schematic view of one orientation of the trim valve of fig. 4.

FIG. 6 is a schematic cross-sectional view of the trim valve of FIG. 5 in the direction B-B, wherein solid arrows indicate the manner in which two fluids can flow within the trim valve and dashed arrows indicate the manner in which two fluids can flow when the trim valve is in another operating state.

Fig. 7 is a schematic cross-sectional view of the tempering valve shown in fig. 6 in two operating states in the direction C-C.

Fig. 8 is an exploded view of the thermostat valve of the above embodiment.

Fig. 9 is a perspective view of the valve seat of the temperature-adjusting valve of the above embodiment, shown from two directions, respectively.

FIG. 10 is a schematic cross-sectional view of the valve seat shown in FIG. 9 and a schematic cross-sectional view of a valve seat assembly incorporating a seal or the like.

Fig. 11 is a schematic sectional view of the valve body of the temperature control valve of the above embodiment.

FIG. 12 is a schematic perspective view and a schematic cross-sectional view of a valve seat assembly mated to a valve cartridge.

Figure 13 is a schematic illustration of the application of the heat exchange assembly or thermal management assembly in a first operating state of the system.

Figure 14 is a schematic illustration of the application of the heat exchange assembly or thermal management assembly in a second operating state of the system.

The solid arrows in the figure indicate the way in which the fluid can flow, and the dashed arrows indicate the possible non-flow of fluid in the flow path.

Fig. 15 is a schematic perspective view of a thermostat valve of the second embodiment, shown from two directions, respectively.

Fig. 16 is a perspective view and a cross-sectional view of the second valve body of the temperature-regulating valve of fig. 15.

Fig. 17 is a schematic perspective view of a thermostat valve of the third embodiment, shown from two directions, respectively.

FIG. 18 is a schematic cross-sectional view of the temperature regulating valve of FIG. 17, wherein solid arrows indicate the manner in which two fluids can flow within the temperature regulating valve and dashed arrows indicate the manner in which two fluids can flow when the temperature regulating valve is in another operating state.

FIG. 19 is a schematic cross-sectional view of the trim valve of FIG. 18 taken along the direction D-D, E-E.

FIG. 20 is a perspective view of a valve seat of the trim valve of FIG. 18.

FIG. 21 is an orientation view and cross-sectional schematic view of the valve seat of FIG. 20.

Detailed Description

Referring now to the drawings and the detailed description, FIGS. 1-12 are schematic diagrams associated with one embodiment thereof, wherein FIG. 1 is a perspective view of a thermal management assembly with a trim valve in combination with a heat exchanger, FIG. 2 is a front view of the thermal management assembly, FIG. 3 is a schematic view of the thermal management assembly of FIG. 2 taken along A-A, FIG. 4 is a perspective view of the trim valve of FIG. 1, FIG. 5 is a schematic view of one direction of the trim valve, FIG. 6 is a schematic view of a trim valve taken along B-B, wherein solid arrows indicate the manner in which two fluids can flow when the trim valve is in a depicted state, dashed arrows indicate the manner in which two fluids can flow when the trim valve is in another operational state after actuation of the valve, FIG. 7 is a schematic view of a cross-section of the trim valve of FIG. 6 taken along C-C in two operational states, fig. 8 is an exploded view of the temperature control valve, fig. 9 is a perspective view of a valve seat of the temperature control valve, which are respectively shown from two directions, fig. 10 is a sectional view of the valve seat and a valve seat assembly of the temperature control valve, fig. 11 is a sectional view of a valve element, and fig. 12 is a perspective view and a sectional view of the valve seat assembly and a valve housing.

The temperature control valve 2 comprises a valve body 20 with a cavity therein, a first elastic element 22, a second elastic element 23, a valve seat assembly 24 ', a valve core 25 and a thermal actuator 21, wherein the valve body 20 comprises a first valve body 201 and a second valve body 202, the valve seat assembly 24' comprises a valve seat 24, the first elastic element 22, the second elastic element 23, the valve seat 24, the valve core 25 and the thermal actuator 21 are arranged in the cavity of the valve body 20, the valve seat and the valve body are relatively fixed, the first valve body 201 and the second valve body 202 are fixed through bolts or screws 51, and a sealing member 28 can be arranged at the joint of the two to realize relative sealing. The valve body 20 is provided with six ports which can be respectively communicated with the outside, and the six ports comprise a first port 63, a second port 64, a third port 65, a fourth port 66, a fifth port 67 and a sixth port 68. The third port 65, the fourth port 66 and the sixth port 68 can be used for the first fluid circulation, the first port 63, the second port 64 and the fifth port 67 can be used for the second fluid circulation, one of the third port 65, the fourth port 66 and the sixth port 68, such as the third port 65 in the embodiment shown in the figure, can be used as an inlet of the first fluid, and the other two can be used as outlets of the first fluid; one of the first port 63, the second port 64, and the fifth port 67, such as the second port 64 of the illustrated embodiment, may serve as an inlet of the second fluid, and the other two may serve as outlets of the second fluid. The valve core is of an integral structure, and can be formed by combining two or more parts, namely the valve core can be of an integral structure or a mode of combining a plurality of parts.

The cavity of the valve body 20 comprises a first cavity 2010, a third cavity 2011 and a second cavity 2020, the first cavity 2010 and the third cavity 2011 are arranged in a sealing mode, the third cavity 2011 is located between the first cavity 2010 and the second cavity 2020, the second port 64 is communicated with the first cavity 2010, the third port 65 is communicated with the second cavity 2020, and the third cavity 2011 is communicated with the sixth port 68; the thermal actuator 21 comprises a thermal actuator body and a mandrel 213 and a heat-sensitive substance filled in the thermal actuator, wherein the heat-sensitive substance can generate volume change along with the change of temperature, and the volume change of the heat-sensitive substance pushes the mandrel 213 to move relative to the body, so that the mandrel can be driven to move relative to the thermal actuator body; the thermal element body comprises a second part 212 and a first part 211, the second part 212 and the first part 211 are relatively fixedly arranged, the first part 211 is positioned between the second part 212 and a push rod 213, and the push rod can move relative to the second part 212 and the first part 211 when the temperature changes; the second part 212 is positioned in the second cavity 2020, or at least part of the second part 212 is positioned in the second cavity 2020, the end of the rod 213 is positioned in the first cavity 2010, and the extended part of the rod is generally an integral structure, or the extended part of the rod 213 can be a separate structure, and the end of one end of the extended part can be realized by abutting against other parts such as an abutting part, and the abutting part extends out of the first cavity 2010, that is, the rod further comprises the abutting part; the top rod and the second part 212 are oppositely arranged and respectively abut against the first elastic element 22 and the second elastic element 23, wherein the abutting comprises direct abutting and indirect abutting, specifically, the second part 212 abuts against one end of the first elastic element 22, and the other end of the first elastic element 22 abuts against the second valve body 202 for limiting; the push rod 213 is in contact with one end of the second elastic element 23, here indirectly contacting the second elastic element 23 through the valve core 25, and the other end of the second elastic element 23 is in contact with the first valve body 201 for limiting, i.e. the two ends of the thermal element are supported by the two elastic elements respectively.

The temperature regulating valve 2 comprises four valve ports, wherein the first valve port is used for controlling the conduction between the fourth interface 66 and the third interface 65, the second valve port is used for controlling the conduction between the sixth interface 68 and the third interface 65, the third valve port is used for controlling the conduction between the fifth interface 67 and the second interface 64, and the fourth valve port is used for controlling the conduction between the first interface 63 and the second interface 64; in the present embodiment, the first valve port portion 2022 having the first valve port is located at the position of the flow channel between the third port 65 and the fourth port 66, the second valve port portion 243 is located at the position of the flow channel between the third port 65 and the sixth port 68, the third valve port portion 240 is located at the position of the flow channel between the second port 64 and the fifth port 67, and the fourth valve port portion 2013 is located at the position of the flow channel between the second port 64 and the first port 63, wherein the first valve port 2022 is disposed on the second valve body 202, the fourth valve port 2013 is disposed on the first valve body 201, and the second valve port portion 243 and the third valve port portion 240 are disposed on the valve seat 24; the first valve port part can be arranged on the second valve body part, namely, the part provided with the first valve port part can be other parts which are fixed or limited relative to the first valve body and are fixed or limited with the second valve body, and the parts and the second valve body form the second valve body part; the fourth valve port may be disposed on the first valve body component, that is, another component disposed on the fourth valve port may be fixed or limited relative to the fourth valve body, and the component is fixed or limited with the first valve body and forms the first valve body component with the first valve body. The second and third valve port portions may not necessarily be provided on the valve seat, but may be provided on another member fixed or retained to the first valve element or the valve seat assembly, and this member may be regarded as a part of the valve seat assembly. The second portion 212 of the thermal element 21 cooperates with the first valve port portion 2022 to achieve conduction or non-conduction of the first valve port, the first portion 211 of the thermal element 21 cooperates with the second valve port portion 243 to achieve conduction or non-conduction of the second valve port, the valve element 25 cooperates with the third valve port portion 240 to achieve conduction or non-conduction of the third valve port, and the valve element 25 cooperates with the fourth valve port portion 2013 to achieve conduction or non-conduction of the fourth valve port, the first valve port and the second valve port can selectively close one of them under specific conditions, the third valve port and the fourth valve port can selectively close one of them under specific conditions, in this embodiment, when the temperature is lower than a certain value, the second valve port and the third valve port can not conduct, and the first valve port and the fourth valve port can conduct; when the temperature is higher than another specific value, the second valve port and the third valve port can be conducted, and the first valve port and the fourth valve port can be not conducted.

The first elastic element 22 is located in the second cavity 2020, the second elastic element 23 is located in the first cavity 2010, the first valve port enables the second cavity 2020 to form a fourth cavity 20201 and a fifth cavity 20202 opposite to each other, the fourth cavity 20201 is communicated with the third port 65, the fifth cavity 20202 is communicated with the fourth port 66, and the fourth cavity 20201 and the fifth cavity 20202 can be communicated or not communicated through the first valve port; the fourth chamber 20201 and the third chamber 2011 can be communicated or not communicated through the second valve port. The initial deformation force of the first elastic element 22 is smaller than that of the second elastic element 23, and the initial deformation force of the second elastic element 23 is larger than the elastic force generated by the deformation of the first elastic element 22 when the second part of the thermal element contacts and closes the first valve port. The initial deformation force described in the specification refers to the pressure which is required to be applied to the spring which is in a compressed state when the product is not used and is subjected to deformation under the action of external force.

The thermal element may further include a position-limiting portion 214, the first elastic element 22 may be sleeved on the position-limiting portion, i.e. limited by the position-limiting portion 214, and accordingly, the thermal element is also supported by the first elastic element 22. There is a transition section between the first portion and the second portion of the thermal element in this embodiment, and the first portion and the second portion may be integrated, for example, the first portion and the second portion have a cylindrical shape, one end of the cylindrical shape serves as the first portion and functions as the first portion, and the other end of the cylindrical shape serves as the second portion and functions as the second portion; alternatively, a combination of two cylindrical structures with a stepped portion may be used, in which one end functions as a first portion and the other end functions as a second portion.

The valve seat assembly 24' is fixed to the valve body, and specifically, may be limited to the cavity of the first valve body by the position-limiting member 27, when assembling, the second elastic member, the valve core, the valve seat assembly and the first valve body may be assembled first, then the position-limiting member 27 is clamped in the corresponding groove of the first valve body 201, the first elastic member, the thermal actuator and the second valve body are assembled, then the two assembled valve bodies are assembled, and then the two assembled valve bodies are fixed by bolts and the like. The valve seat assembly 24 'is provided with a separating part 24 a', the separating part 24a 'separates the cavities in the valve body, and the first cavity 2010 and the third cavity 2011 are relatively separated and relatively sealed by matching with the ejector rod, or the separating part 24 a' relatively separates the first cavity 2010 and the second cavity 2020 and the third cavity 2011 and is relatively sealed. So that the two sides can be used for different fluids, respectively. The valve seat assembly 24' comprises a valve seat 24, a limiting piece 26, at least one sealing piece 28 limited at the outward part of the valve seat and at least one sealing piece 28 limited at the inward part of the valve seat, wherein the sealing piece 28 limited at the outward part of the valve seat is used for being matched with the inner wall part of the valve body to realize sealing, the sealing piece 28 limited at the inward part of the valve seat is sleeved on the ejector rod 213 and is used for being in sliding fit with the ejector rod 213 to realize dynamic sealing, the whole ejector rod can be of a cylindrical structure, the minimum position of a hole 249 of the valve seat is about 0.10mm-0.5mm larger than the ejector rod of the movable element, and the limiting piece 26 is used for limiting the sealing piece. In the case of a seal which can be achieved or where the sealing requirements are not too high, the seal 28 can be arranged one inside the other, which is relatively simple. When the sealing requirement is higher, two grooves can be respectively arranged to ensure sealing, as shown in fig. 10 and 6, two grooves are arranged at the outer part of the valve seat: the groove 245 and the groove 244 are provided, each groove is limited with a sealing element 28 for matching with the inner wall part of the valve body to realize sealing, two sealing element accommodating parts are also arranged at the inward part of the valve seat, and the limiting part 26 is adopted to realize the limiting of the sealing element after the sealing element 28 is put in.

The valve seat 24 includes a second valve port portion 243 and a third valve port portion 240, the valve seat 24 includes at least two first column portions 247, second column portions 248 and isolation portions, the isolation portions are oppositely located between the first column portions 247 and the second column portions, the first column portions 247 and the second column portions 248 are also used as connection portions, the second column portions 248 connect the second valve port portion 243 and the isolation portions, the first column portions 247 are used as a part of the third valve port portion 240, and the annular portion 246 which is another part of the third valve port portion 240 is connected with the isolation portions, wherein the surface of the first column portions 247 facing inwards is in a substantially arc-shaped structure when viewed from the axial direction, the surface of the second column portions 248 facing inwards can also be in a substantially arc-shaped structure when viewed from the axial direction, or the inner sides of the cross sections of the two column portions can be in two arc-shaped structures; the second valve port portion 243 is generally annular in configuration and has an inner bore end portion 2430 which serves as a second valve port for mating with the first portion of the thermal element. The valve seat 24 is also provided with an internal bore 249 at the partition, through which bore 249 the stem lifter can pass. The third orifice portion 240 includes a semicircular annular portion 246, two first column portions 247, and a portion of the end surface 2403 of the isolation portion facing the first column portion 247, the inward first wall portion 2401 of the annular portion 246, the inward second wall portions 2402 of the two first column portions 247, and the end surface 2403 of the isolation portion facing the first column portion 247 form the third orifice, the shapes of the first wall portion 2401 and the inward second wall portions 2402 of the two first column portions 247 match the shape of the spool 25, the spool is in sliding fit with the third orifice portion 240, and the maximum distance between the inward second wall portions 2402 of the two first column portions 247 is greater than the outer diameter of the spool. The valve core 25 is substantially cylindrical, the outer wall portion 251 of the valve core is matched with the first wall portion 2401 and the second wall portion 2402 of the valve seat, the end face portion 253 of the valve core can be attached to the end face 2403 of the valve seat under the action of external force, the valve core further comprises a limiting hole 252 which is arranged inwards and can accommodate the end portion of the ejector rod 213, the bottom of the limiting hole 252 can be abutted to the ejector rod 213, the valve core further comprises a supporting portion 254, and one end of the second elastic element is abutted to the supporting portion 254. The valve body comprises two steps in the direction to the first interface: the first step 2015 may further include a guide portion (not numbered), and the valve element 25 may further include a guide portion 255, the outer wall portion 251 of the valve element 25 is slidably fitted to an inner wall portion of the cavity 2016 between the first step 2015 and the second step 2014, one end of the second elastic element 23 abuts against the support portion 254 of the valve element, and the other end abuts against the second step 2014. The outer wall portion 251 of the valve element 25 of the present embodiment is used for fitting the third valve port portion 240 and also fitting the fourth valve port portion 2013, when the end surface portion 253 of the valve element 25 abuts against the end surface 2403 of the valve seat, the end surface portion 253 of the valve element 25 fits against the end surface 2403 of the valve seat, the outer wall portion 251 of the valve element fits against the inner wall portion 2401 of the annular portion 246, and the inner wall portions 2402 of the two first columnar portions 247 fit against both sides of the outer wall portion 251 of the valve element, so that the third valve port is substantially non-conductive, the valve element 25 is spaced from the first step portion 2015 by a certain distance, so that the fourth valve port portion 2013 is conductive, and the axial distance L from the end surface 2403 of the valve seat to the first step portion 2015 is greater than the axial height h of the valve element, or the axial distance L from the end surface 2403 of the valve. When the thermal element expands due to heat, the plunger 213 abuts against the valve element 25 to move the valve element 25 toward the second step until part of the valve element 25 extends into the cavity 2016 between the first step 2015 and the second step 2014, the valve element 25 cooperates with the fourth valve port to make the fourth valve port substantially non-conductive, and at this time, the end surface 253 of the valve element is away from the end surface 2403 of the valve seat, fluid can flow between the two, and the third valve port is conductive. It can be seen that the outer wall portion of the valve element of the present embodiment can be fitted to both the fourth and third valve port portions.

In order to ensure that the leakage of any fluid does not have great influence on the temperature regulating valve and a system, the valve seat 24 of the embodiment is further provided with a row of holes 241, the row of holes 241 is communicated with a valve seat inner hole 249 and the outer side of the valve seat, meanwhile, a discharge part 2012 is also arranged at the position of the valve body corresponding to the row of holes, and the discharge part 2012 is communicated with the row of holes, so that even if the fluid on one side leaks, the fluid can be discharged through the row of holes and the discharge part, and the influence on another fluid system cannot be caused; meanwhile, in order to improve the discharging effect, the groove portion 242 is provided at the corresponding portion where the row hole 241 is provided, and regardless of which side the leakage from the other side must pass through the groove portion 242 or the row hole, the position of the row hole may be provided at any portion of the circumference, and the leakage is discharged therethrough. In addition, the discharge portion and the discharge hole can be used for observation. A filter (not shown) may be further provided at the discharge part 2012 in order not to allow external dust to enter the surface of the carrier rod.

The heat management assembly 01 comprises a temperature adjusting valve 20 and a heat exchanger 10, the heat exchanger 10 comprises a mounting plate 31, a connecting piece 40 and a heat exchange core 11, the connecting piece 40 is provided with a first connecting channel 401 and a second connecting channel 402, the first connecting channel 401 is communicated with a sixth interface 68, the second connecting channel 402 is communicated with a fifth interface 67, the first connecting channel 401 is communicated with a first fluid channel 101 of the heat exchange core, the second connecting channel 402 is communicated with a second fluid channel 103 of the heat exchange core, the first fluid channel 101 is not communicated with the second fluid channel 103, so that the sixth interface 68 is communicated with the first fluid channel 101 of the heat exchange core, the fifth interface 67 is communicated with the second fluid channel 103 of the heat exchange core, and the two fluid channels are not communicated with each other. The fifth port 67 is different from the sixth port 68 in the axial position of the thermostat valve, and the direction in which the thermal element can operate is referred to as the axial direction of the thermostat valve in this specification. In addition, a connecting piece is not needed, and the temperature regulating valve and the heat exchange core body are directly fixed by welding.

Thermal management assembly 01 additionally includes two ports that may be used to connect to the system: the first port 61 of the first fluid channel 101, the first port 62 of the second fluid channel 103, the second port of the first fluid channel 101 is communicated with the first connection channel 401 of the connection piece 40, that is, communicated with the sixth port of the temperature regulating valve 20, and the second port of the second fluid channel 103 is communicated with the second connection channel 402 of the connection piece 40, that is, communicated with the fifth port 67 of the temperature regulating valve 20, when in use, the first port 61 of the first fluid channel 101 and the fourth port of the temperature regulating valve are simultaneously connected with one port, such as an inlet, of the cooler 03, or both the first port 61 of the first fluid channel 101 and the fourth port of the temperature regulating valve are merged and then connected with one port of the cooler 03, and the other port of the cooler is connected with the third port of the temperature regulating valve; the first port 62 of the second fluid channel 103 and the first port 63 of the thermostat valve are simultaneously connected to a port, such as an inlet, of the transmission case 02, or both the first port 62 of the second fluid channel 103 and the first port 63 of the thermostat valve may be merged and then connected to a port of the transmission case 02, and the other port of the transmission case 02 is connected to the second port 64 of the thermostat. The term "connected" as used herein includes both direct and indirect connections, as in the case of a connection via a line or a connection or a line and a connection, etc. Therefore, the first fluid and the second fluid can respectively realize corresponding work so as to meet the requirement of the system on the temperature control of the gearbox oil.

The thermal management assembly is connected, in use, to the gearbox 02 and to a cooler 03 for heat exchange, and in particular as shown in figures 13 and 14, figure 13 is a schematic view, partly in section, of the way in which the thermal management assembly is applied in a first operating state of the system, and figure 14 is a schematic view, partly in section, of the way in which the thermal management assembly is applied in a second operating state of the system. The thermal management assembly comprises six interfaces or ports for connection to the system, respectively a first port 61 of a first fluid channel, a first port 62 of a second fluid channel, a first interface 63 of a thermostat valve, a second interface 64, a third interface 65, a fourth interface 66, while the gearbox 02, the cooler 03 each comprise at least two interfaces, such as at least one inlet and at least one outlet, respectively. The first port 61 of the first fluid channel 101 and the fourth port 66 of the thermostat valve are simultaneously connected with one port of the cooler 03, the other port of the cooler 03 is connected with the third port 65 of the thermostat, the first port 62 of the second fluid channel 103 and the first port 63 of the thermostat valve are simultaneously connected with one port of the gearbox 02, and the other port of the gearbox 02 is connected with the second port 64 of the thermostat, wherein the gearbox can be communicated with the second fluid channel of the heat exchanger, and the cooler can be communicated with the first fluid channel of the heat exchanger.

The application of thermal management assembly 01 to a system includes at least two modes of operation, the first mode of operation being shown in FIG. 13. When the temperature of the fluid from the transmission is low, such as lower than a set first temperature T1, when the heat sensitive substance of the thermal element is in a relatively contracted state, the body of the thermal element is relatively close to or abuts against the valve seat, and the valve core is also relatively close to or abuts against the valve seat, the first elastic element 22 and the second elastic element 23 are in an initial deformation state, which is a state in which the elastic force in the temperature regulating valve is the smallest possible, when the first portion 211 abuts against the second valve port portion 243, the second valve port 2430 is substantially non-conductive, and the second portion 212 is away from the first valve port portion 2022, so that the first valve port is conductive; the valve element abuts against the end surface 2403 of the valve seat, and at this time, the valve element 25 is engaged with the third valve opening portion 240 to make the third valve opening substantially non-conductive, and the valve element 25 is spaced from the first step portion 2015 by a certain distance, so that the fourth valve opening is conductive. Thus, the second fluid from the transmission flows into the second cavity of the temperature regulating valve through the second port 64 of the temperature regulating valve, and directly flows back to the transmission 02 through the first port 63 without heat exchange of the heat exchanger; the first fluid from the cooler 03 flows into the first chamber of the thermostat valve via the third port 65 of the thermostat valve and flows via the fourth port directly back to the cooler 03 via the fourth port 66, without undergoing heat exchange in a heat exchanger, which does not operate substantially here.

A second mode of operation of the thermal management assembly in the application of the system is shown in fig. 14, when the temperature of the fluid exiting the transmission is high, such as greater than or equal to the second temperature T2, the thermal sensitive substance of the thermal actuator is in a relatively expanded state, the body of the thermal actuator is relatively far away from the valve seat or away from the second valve port, and the valve element is also moved by the ejector pin in a direction opposite to the second step or away from the valve seat. The thermal actuator compresses the first elastic element 22 and makes the body of the thermal actuator overcome the elasticity of the first elastic element 22 to move towards the first valve port 2022 until the second portion 212 abuts against the first valve port 2022 and the second portion can not move any more, at this time, the thermal actuator overcomes the elasticity of the second elastic element 23, the ejector rod 213 of the thermal actuator carries the valve core together to move towards the second step part, when the valve core moves to a certain distance, the valve core cooperates with the fourth valve port to make the fourth valve port no longer circulate, accordingly, the end surface 253 of the valve core leaves the end surface 2403 of the valve seat, and the third valve port is conducted. The first elastic element 22 and the second elastic element 23 are in a relatively compressed state, at this time, the first portion 211 and the second valve port portion are no longer abutted, so that the second valve port 2430 is conducted, and the second portion 212 and the first valve port 2022 are abutted, so that the first valve port is not conducted; the valve core is not abutted with the end surface 2403 of the valve seat any more, so that the third valve port is conducted, and the valve core 25 is matched with the fourth valve port part 2013 to basically prevent the fourth valve port from being conducted. Thus, the second fluid from the transmission flows into the second cavity of the temperature regulating valve through the second port 64 of the temperature regulating valve, flows through the second valve port and the fifth port 67 of the temperature regulating valve, then flows through the second fluid channel 103 of the heat exchanger, and flows back to the transmission 02 from the first port 62 of the second fluid after heat exchange by the heat exchanger 10; the first fluid from the cooler 03 flows into the first cavity of the temperature regulating valve through the third port 65 of the temperature regulating valve, flows to the first fluid channel 101 of the heat exchanger through the third port 68 through the sixth port 68, exchanges heat with the second fluid flowing in the second fluid channel in the heat exchanger, and then flows back to the cooler 03 through the first port 61 of the first fluid, and then the heat exchanger enables the two fluids to exchange heat.

The first temperature T1 and the second temperature T2 can be preset and adjusted according to system requirements, and the second temperature T2 is greater than the first temperature T1. In addition, the heat exchange system not only comprises the two working modes, but also can be in a working mode between the two working modes, such as a mode that the first valve port and the second valve port are partially communicated, a mode that the third valve port and the fourth valve port are partially communicated, and the like, the temperature regulating valve can perform control conversion of a flow path according to the temperature of the second fluid entering, so that the second fluid flowing back to the gearbox is in a relatively proper temperature range.

The two valve bodies of the above embodiment may be made of metal material such as aluminum alloy by combining metal casting with machining or by stamping and then machining, or may be made of thermoplastic plastic material or thermosetting plastic material by injection molding, then the parts of the temperature regulating valve are assembled with the corresponding valve bodies, then the two valve bodies are assembled and fixed by bolts, etc., and the sealing member 28 may be additionally arranged between the two valve bodies to seal the combining portions relatively. In addition, the two valve bodies may also be formed by machining a profile, as shown in fig. 15 and 16, in a second embodiment, fig. 15 is a schematic perspective view of the temperature regulating valve of the second embodiment, which is respectively shown from two directions, and fig. 16 is a schematic perspective view and a schematic sectional view of the second valve body of the temperature regulating valve. The first valve body 201 is still formed by combining metal casting or stamping with machining or by injection molding, but the second valve body 202' is formed by machining a section bar, and additionally has a port 2023a and a port 2024a, the port 2023a is matched with the connecting pipe 2023, the other port 2024a is matched with the other connecting pipe 2024, the connecting pipe and the second valve body are fixed by welding, and two interfaces for connection are formed: the third port 65 and the fourth port 66, and two ports provided in the second valve body 202' may be: the ports 2023a and 2024a directly serve as a third interface and a fourth interface for external connection, and the same can be achieved. The second valve body 202' has at least two protrusions: in addition, for convenience of connection, the second valve body of the present embodiment further includes a third protrusion 2027, the second valve body is provided with a threaded hole 51a at the third protrusion 2027, and at the same time, the first protrusion 2025 is also provided with a threaded hole 51a at the first protrusion 2025, the threaded hole 51a is arranged in a staggered manner with respect to the port 2023a located at the protrusion, i.e., the threaded hole 51a does not communicate with the port 2023a located at the protrusion, and the threaded hole 51a is arranged in a substantially crossed and perpendicular manner with respect to the axis of the port 2023a located at the protrusion. In addition, the threaded hole 51a and the port 2023a located in the protruding portion may be provided at both ends of the protruding portion, respectively, that is, the axes of the threaded hole and the port 2023a may be substantially coincident or parallel, so that the positions of the ports 2023a are different.

The profile of the second valve body also has several projections, and when machining, the profile can be machined to form two ports and threaded holes, and form a first valve port 2022, the port 2023a is communicated with the fifth chamber 20202, the fourth chamber 20201 is also communicated with the fifth chamber 20202 by partial penetration, and a step between the fourth chamber 20201 and the partial penetration hole forms the first valve port 2022. The processing of this mode is simple relatively, does not need work steps such as casting or injection molding, and adopts the section bar uniformity also relatively better. And the internal structure of the present embodiment may refer to the first embodiment.

A third embodiment of a thermostat is described as shown in fig. 17-21, fig. 17 is a schematic perspective view of a thermostat valve, shown from two directions, respectively, fig. 18 is a schematic sectional view in which solid arrows indicate the manner in which two fluids can flow within the thermostat valve, dashed arrows indicate the manner in which two fluids can flow in the thermostat valve in another work condition, fig. 19 is a schematic sectional view of the thermostat valve shown in fig. 18 taken along the direction D-D, E-E, fig. 20 is a schematic perspective view of a valve seat, and fig. 21 is a schematic front view and a schematic sectional view of the valve seat.

The temperature control valve 2 comprises a valve body 20 with a cavity, a first elastic element 22, a second elastic element 23, a valve seat assembly, a valve core 25 and a thermal actuator 21, wherein the valve seat assembly comprises a valve seat 24, the structure of the valve body 20 and the valve seat 24 is different from that of the above embodiment, and the matching mode of the thermal actuator and the valve seat is different. The valve body 20 comprises a first valve body 201 and a second valve body 202, and both the first valve body 201 and the second valve body 202 can be made of plastic materials through processing and forming such as injection molding or processing in a metal stamping or casting mode; the first elastic element 22, the second elastic element 23, the valve seat 24, the valve core 25 and the thermal element 21 are arranged in a cavity of the valve body 20, the valve seat assembly and the valve body are relatively fixed or limited, the first valve body 201 and the second valve body 202 are fixed through bolts or screws 51, and a sealing element 28 can be arranged at the joint of the two to realize relative sealing. The valve body 20 includes six ports that are respectively communicable with the outside, and the six ports include a first port 63, a second port 64, a third port 65, a fourth port 66, a fifth port 67, and a sixth port 68. The third port 65, the fourth port 66 and the sixth port 68 can be used for the first fluid circulation, the first port 63, the second port 64 and the fifth port 67 can be used for the second fluid circulation, one of the third port 65, the fourth port 66 and the sixth port 68, such as the third port 65 in the embodiment shown in the figure, can be used as an inlet of the first fluid, and the other two can be used as outlets of the first fluid; one of the first port 63, the second port 64, and the fifth port 67, such as the second port 64 of the illustrated embodiment, may serve as an inlet of the second fluid, and the other two may serve as outlets of the second fluid.

The chambers of the valve body 20 include a first chamber 2010 and a second chamber 2020, the first chamber 2010 and the second chamber 2020 are arranged in a relatively sealed manner, a partition 24a 'of the valve seat assembly is arranged between the first chamber 2010 and the second chamber 2020, the ejector pin 213 of the thermal actuator extends into the first chamber 2010 from the second chamber 2020 through the partition 24 a', a seal is arranged between the ejector pin 213 of the thermal actuator and the partition of the valve seat, and a seal is arranged between the inner wall portion of the valve body and the partition of the valve seat, so that the first chamber 2010 and the second chamber 2020 are relatively isolated and are not communicated. The second port 64 is communicated with the first chamber 2010, the third port 65 is communicated with the second chamber 2020, and the sixth port 68 and the second chamber 2020 have a second valve port portion 243a therebetween; the thermal actuator 21 comprises a thermal actuator body and a mandrel 213 and a heat-sensitive substance filled in the thermal actuator, wherein the heat-sensitive substance can generate volume change along with the change of temperature, and the volume change of the heat-sensitive substance pushes the mandrel 213 to move relative to the body, so that the mandrel can be driven to extend or retract relative to the thermal actuator body; the thermal actuator body comprises a second part 212 and a first part 211a, the second part 212 and the first part 211a are relatively fixedly arranged, the first part 211a is positioned between the second part 212 and a push rod 213, and the push rod can move relative to the second part 212 and the first part 211 when the temperature changes; the second part 212 is located in the second cavity 2020, or at least part of the second part 212 is located in the second cavity 2020, the end of the rod 213 is located in the first cavity 2010, or the end of the rod 213 can extend to the first cavity 2010 by abutting against other components such as an abutting part, that is, the rod is arranged opposite to the first part 211, and both abut against the first elastic element 22 and the second elastic element 23 respectively, where the abutting includes direct abutting and indirect abutting, specifically, the second part 212 abuts against one end of the first elastic element 22, and the other end of the first elastic element 22 abuts against the second valve body 202 to be limited; the push rod 213 is in contact with one end of the second elastic element 23, here indirectly contacting the second elastic element 23 through the valve core 25, and the other end of the second elastic element 23 is in contact with the first valve body 201 for limiting, i.e. the two ends of the thermal element are supported by the two elastic elements respectively.

The temperature regulating valve 2 comprises four valve ports, wherein the first valve port is used for controlling the conduction between the fourth interface 66 and the third interface 65, the second valve port is used for controlling the conduction between the sixth interface 68 and the third interface 65, the third valve port is used for controlling the conduction between the fifth interface 67 and the second interface 64, and the fourth valve port is used for controlling the conduction between the first interface 63 and the second interface 64; in this embodiment, the first valve port portion 2022 having the first valve port is located at the position of the flow channel between the third port 65 and the fourth port 66, the second valve port portion 243a is located at the position of the flow channel between the third port 65 and the sixth port 68, the third valve port portion 240 is located at the position of the flow channel between the second port 64 and the fifth port 67, and the fourth valve port portion 2013 is located at the position of the flow channel between the second port 64 and the first port 63. The first valve port portion 2022 is disposed on the second valve body 202, the fourth valve port portion 2013 is disposed on the first valve body 201, and the second valve port portion 243a and the third valve port portion 240 are disposed on the valve seat 24; the second portion 212 of the thermal actuator 21 cooperates with the first valve port portion 2022 to achieve conduction or non-conduction of the first valve port, the first portion 211a of the thermal actuator 21 cooperates with the second valve port portion 243a to achieve conduction or non-conduction of the second valve port, the valve element 25 cooperates with the third valve port portion 240 to achieve conduction or non-conduction of the third valve port, and the valve element 25 cooperates with the fourth valve port portion 2013 to achieve conduction or non-conduction of the fourth valve port, the first valve port and the second valve port can be selectively closed under specific conditions, the third valve port and the fourth valve port can be selectively closed under specific conditions, in this embodiment, when the temperature is lower than a certain value, the second valve port and the third valve port can be non-conducted, and the first valve port and the fourth valve port can be conducted; when the temperature is higher than another specific value, the second valve port and the third valve port can be conducted, and the first valve port and the fourth valve port can be not conducted.

The first elastic element 22 is located in a second cavity 2020, and the second elastic element 23 is located in a first cavity 2010, where the second cavity 2020 is formed by the first valve body 201, the second valve body 202, the valve seat 24, the thermal actuator 21, and the like, the first valve port portion makes the second cavity 2020 form a fourth cavity 20201 and a fifth cavity 20202 opposite to each other, the fourth cavity 20201 is communicated with the third port 65, the fifth cavity 20202 is communicated with the fourth port 66, and the fourth cavity 20201 and the fifth cavity 20202 can be communicated or not communicated through the first valve port; the sixth port 68 and the fourth chamber 20201 can be communicated or not communicated through the second valve port. The initial deformation force of the first elastic element 22 is smaller than that of the second elastic element 23, and the initial deformation force of the second elastic element 23 is larger than the elastic force generated by the deformation of the first elastic element 22 when the second part of the thermal element contacts and closes the first valve port. The initial deformation force described in the specification refers to the pressure which is required to be applied to the spring which is in a compressed state when the product is not used and is subjected to deformation under the action of external force.

The thermal element may further include a position-limiting portion 214, the first elastic element 22 may be sleeved on the position-limiting portion, i.e. limited by the position-limiting portion 214, and accordingly, the thermal element is also supported by the first elastic element 22. A transition section can be arranged between the first part and the second part of the thermal element, and the first part and the second part can also be integrated, for example, the first part and the second part are in cylindrical structures, one end of each cylinder is used as the first part to play the role of the first part, and the other end of each cylinder is used as the second part to play the role of the second part; alternatively, a combination of two cylindrical structures with a stepped portion may be used, in which one end functions as a first portion and the other end functions as a second portion.

The valve seat 24 is provided with a second valve port portion 243a and a third valve port portion 240, the valve seat 24 comprises at least two first column portions 247, at least two second column portions 248, a ring portion 246 in a substantially semi-annular shape, another ring portion 243 in a substantially semi-annular shape, and a separating portion, the first column portions 247 and the second column portions 248 are also used as connecting portions, the second column portions 248 are used as a part of the second valve port portion 243a, the ring portion which is another part of the second valve port portion 243a is connected with the separating portion, or the second valve port portion 243a is integrated with the separating portion, and the surface of the second column portions 248 facing the inner side is a substantially circular arc structure when viewed from the axial direction, or the inner side of the cross section of the two column portions can be two circular arcs and is matched with the outer wall of the first portion of the thermal actuator in a sliding manner; the second valve port portion 243a includes an annular portion 243, two second cylindrical portions 248, and a part of an end face 243a4 of the partition portion facing the second cylindrical portion 248, the end face of the first portion of the thermal element facing the end face 243a4 may be fitted with the end face 243a4 of the partition portion, the inward-facing first wall portion 243a1 of the annular portion 243, the inward-facing second wall portions 243a2 of the two second cylindrical portions 248, and the end face 243a4 of the partition portion facing the second cylindrical portion 248 constitute a second valve port, and the shape of the second valve port is adapted to the shape of the first portion. In addition, a part of the end face 243a4 of the isolation part facing the second cylindrical part 248 may be partially concave, as shown in fig. 20 and 21, so as to form a guide part 243a3, the guide part 243a3 is relatively close to the end face 243a4 and is sized to cooperate with the first part 211a, so that the guide part 243a3 can cooperate with the inward first wall part 243a1 of the annular part 243, the inward second wall parts 243a2 of the two second cylindrical parts 248 to realize relative sealing with the first part 211a, the first part 211a has a substantially cylindrical shape, and the inward first wall part 243a1 of the annular part 243, the inward second wall parts 243a2 of the two second cylindrical parts 248, and the guide part 243a3 form a second valve port; the guide portion 243a3, the end surface 243a4, the inward first wall portion 243a1 of the annular portion 243, and the inward second wall portions 243a2 of the two second cylindrical portions 248 may form a second valve port engageable with the first portion 211a of the thermal element.

The valve seat 24 is further provided with an inner hole 249 at the isolation part, the ejector rod can penetrate through the inner hole 249, the whole ejector rod can be of a cylindrical structure, and the minimum position of the inner hole 249 of the valve seat is about 0.10mm-0.5mm larger than the ejector rod of the thermal element. The third valve port portion may be similar in structure to the second valve port portion. The third valve portion 240 includes a substantially semicircular annular portion 246, at least two first columnar portions 247, and a portion of the end surface 2403 of the spacer portion facing the first columnar portion 247, and the end surface 2403 may be flat or partially recessed. The inward first wall portion 2401 of the annular portion 246, the inward second wall portions 2402 of the two first columnar portions 247, and the end surface 2403 of the isolation portion facing the first columnar portion 247 constitute a third orifice, the shapes of the first wall portion 2401 and the inward second wall portions 2402 of the two first columnar portions 247 are matched with the shape of the spool 25, the spool is in sliding fit with the third orifice portion 240, and the maximum distance between the inward second wall portions 2402 of the two first columnar portions 247 is larger than the outer diameter of the spool. The valve core 25 is substantially cylindrical, the outer wall portion 251 of the valve core is matched with the first wall portion 2401 and the second wall portion 2402 of the valve seat, the end face portion 253 of the valve core can be attached to the end face 2403 of the valve seat under the action of external force, the valve core further comprises a limiting hole 252 which is arranged inwards and can accommodate the end portion of the ejector rod 213, the bottom of the limiting hole 252 can be abutted to the ejector rod 213, the valve core further comprises a supporting portion 254, and one end of the second elastic element is abutted to the supporting portion 254. The valve body comprises two steps in the direction to the first interface: the first step 2015 and the second step 2014 are respectively provided with a fourth valve port 2013, the first step 2015 further comprises a guide portion (not numbered), the valve core 25 is also correspondingly provided with a guide portion 255, the outer wall 51 of the valve core 25 is in sliding fit with the inner wall of the cavity between the first step 2015 and the second step 2014, the gap is approximately between 0.10mm and 0.5mm, one end of the second elastic element 23 is abutted against the support portion 254 of the valve core, and the other end of the second elastic element 23 is abutted against the second step 2014. The outer wall portion 251 of the valve body 25 is used for matching with the third valve port portion 240 and the fourth valve port portion 2013, when the end surface portion 253 of the valve body 25 abuts against the end surface 2403 of the valve seat, the end surface portion 253 of the valve body 25 is matched with the end surface 2403 of the valve seat, the outer wall portion 251 of the valve body is matched with the inner wall portion 2401 of the annular portion 246, the inner wall portions 2402 of the two first columnar portions 247 are matched with two sides of the outer wall portion of the valve body, at this time, the third valve port is basically not conducted, the valve body 25 is at a certain distance from the first step portion 2015, so that the fourth valve port portion 2013 is conducted, and the axial distance L from the end surface 2403 of the valve seat to the first step portion 2015 is greater than the. When the thermal element expands due to heat, the plunger rod abuts against the valve core 25 to move the valve core 25 towards the second step part until the valve core 25 partially extends into the cavity 2016 between the first step part 2015 and the second step part 2014, the fourth valve port is basically not conducted, and the end surface 253 of the valve core is separated from the end surface 2403 of the valve seat, so that fluid can flow between the two, and the third valve port is conducted. It can be seen that the outer wall portion of the valve element of the present embodiment can be fitted to both the fourth and third valve port portions. In addition, the structure of the valve seat can be partially concave, namely, the structure of the second valve port can also have a plurality of composition modes of the second valve port according to the structure of the second valve port.

The valve seat assembly 24' is fixed to the valve body, for example, the valve seat assembly is limited to the cavity of the first valve body by the retaining member 27, when assembling, the second elastic element, the valve core, the valve seat and the first valve body can be assembled, then the retaining member 27 is retained in the first valve body 201, and simultaneously the first elastic element, the thermal element and the second valve body are assembled, then the two assembled valve bodies are assembled together, and then the two assembled valve bodies are fixed by bolts and the like. The valve seat assembly 24 ' is provided with a partition part 24a ', the partition part 24a ' partitions the cavity in the valve body, so that the first cavity 2010 and the second cavity 2020 are relatively isolated and are relatively arranged in a sealing manner. Thus, the two sides can be respectively used for different fluids, namely, two different fluids can flow in the temperature regulating valve, and the two fluids can change the flow mode according to the temperature change. The valve seat assembly 24' comprises a valve seat 24, a limiting member 26, at least one sealing member 28 limiting the outward part of the valve seat, and at least one sealing member 28 limiting the inward part of the valve seat, wherein the sealing member 28 limiting the outward part of the valve seat is used for being matched with the inner wall part of the valve body to realize sealing, the sealing member 28 limiting the inward part of the valve seat is sleeved on the ejector rod 213 and is used for being in sliding fit with the ejector rod 213 to realize dynamic sealing, and the limiting member 26 is used for limiting the sealing member 28 for dynamic sealing, so that the sealing member cannot be disengaged during. In the case of a sealing which is possible or in the case of less demanding sealing requirements, the sealing elements 28 can be arranged one on each, so that the construction is relatively simple. And when the sealing requirement is higher, can set up two respectively to ensure sealed, as shown in fig. 18, the relative outer position of the disk seat of this embodiment is provided with two recesses: the groove 245 and the groove 244 are provided, each groove is limited with a sealing element 28 for matching with the inner wall part of the valve body to realize sealing, two sealing element accommodating parts are also arranged at the inward part of the valve seat, and the limiting part 26 is adopted to realize the limiting of the sealing element after the sealing element 28 is put in. In addition, a limiting piece is not needed, a groove is formed in the inward portion of the valve seat, the sealing piece can be placed in the groove, and the sealing piece can be limited.

In order to ensure that any fluid leakage does not have great influence on the temperature regulating valve and the system, the valve seat 24 of the embodiment is further provided with a row of holes 241, the row of holes 241 is communicated with a valve seat inner hole 249 and the outer side of the valve seat, and meanwhile, a discharge part 2012 is also arranged at the position of the valve body corresponding to the row of holes 241, so that even if one side of the fluid leaks, the fluid can be discharged through the row of holes and the discharge part, and the other fluid system and the system cannot be influenced; at the same time, in order to improve the discharging effect, the groove portion 242 is provided at the corresponding portion where the row hole 241 is provided, and the leakage from any side to the other side must pass through the groove portion 242 or the row hole, and thus the leakage is discharged therethrough. In addition, the discharge portion and the discharge hole can be used for observation. A filter (not shown) may be further provided at the discharge part 2012 in order not to allow external dust to enter the surface of the carrier rod. In this embodiment, the first portion 211a of the heat-actuated element may be always in a state of being partially engaged with the second valve port portion when the heat-actuated element is actuated. Or in the axial direction, the first part is always matched with the semi-annular part 243 of the second valve port part, so that the guide of the action of the thermal actuator is relatively realized, the thermal actuator is limited, and the action of the thermal actuator is more stable and reliable.

The specific use, connection and the like of this embodiment can refer to the above first embodiment, the attemperation valve can also be assembled with a heat exchanger to form a thermal management component, the thermal management component includes an attemperation valve and a heat exchanger 10, the heat exchanger 10 includes a mounting plate 31, a connecting member 40 and a heat exchange core 11, the connecting member 40 is provided with a first connecting channel 401 and a second connecting channel 402, the first connecting channel 401 is communicated with the sixth interface 68, the second connecting channel 402 is communicated with the fifth interface 67, the first connecting channel 401 is communicated with the first fluid channel 101 of the heat exchange core, the second connecting channel 402 is communicated with the second fluid channel 103 of the heat exchange core, in this way, the sixth interface 68 is communicated with the first fluid channel 101 of the heat exchange core, the fifth interface 67 is communicated with the second fluid channel 103 of the heat exchange core, and the two fluid channels are not communicated with. The fifth port 67 is different from the sixth port 68 in the axial position of the temperature control valve, the fifth port 67 is different from the fourth port 66 in the axial position of the temperature control valve, and the fifth port 67 is different from the first port 63 in the axial position of the temperature control valve. The term "connected" in the present specification includes not only a direct connection but also a case where the connection is made through another member, that is, a case where the connection is indirect, and the communication includes not only a direct communication but also a case where the connection is made through another member, that is, a case where the connection is indirect.

The first valve port portion and the thermal element of the above embodiment are in an abutting structure, and in addition, a matching mode similar to the fourth valve port portion may also be adopted, that is, the thermal element may further extend into a cavity where the first valve port is located after relatively closing the first valve port, that is, a fifth cavity, so that the fourth valve port portion may be in an abutting mode, that is, a matching mode similar to the first valve port portion, and thus, requirements of the first elastic element and the second elastic element are relatively higher, and the same can be achieved.

The foregoing is illustrative of the present invention and is not to be construed as limiting thereof in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the scope of the invention. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (11)

1. A temperature regulating valve comprises a valve body, a first elastic element, a second elastic element, a valve seat assembly, a valve core and a thermal actuator, wherein the valve seat assembly comprises a valve seat, the valve body comprises a first valve body and a second valve body, and the first elastic element, the second elastic element, the valve seat assembly, the valve core and the thermal actuator are arranged in the valve body; the temperature regulating valve comprises a first cavity and a second cavity, the first cavity and the second cavity are isolated from each other and are not communicated, the first valve port part is positioned in the second cavity, the fourth valve port part is positioned in the first cavity, the first elastic element is positioned in the second cavity, the second elastic element is positioned in the first cavity, part of the thermal element is positioned in the first cavity, the other part of the thermal element is positioned in the second cavity, one end of the thermal element is abutted against the first elastic element, the other end of the thermal element is abutted against the second elastic element, the initial deformation force of the first elastic element is smaller than that of the second elastic element, and the initial deformation force of the second elastic element is larger than the elastic force generated by deformation of the first elastic element when one end of the thermal element is abutted against the first valve port part; one of the third port, the fourth port and the sixth port is communicated with the second cavity, and the other two ports can be communicated with the second cavity through a valve port; one of the first interface, the second interface and the fifth interface is communicated with the first cavity, and the other two interfaces can be communicated with the first cavity through a valve port.

2. The thermostat valve of claim 1, wherein the first valve port portion is disposed on the second valve body or a second valve body component, and the fourth valve port portion is disposed on the first valve body or a first valve body component, the first valve body or the first valve body component being fixed or retained relative to the second valve body or the second valve body component; the valve seat assembly comprises the second valve port part and a third valve port part, the valve seat assembly is partially positioned in the first cavity, partially positioned in the second cavity or forms a part of the second cavity, the valve seat assembly comprises a partition part, the partition part is matched with the thermal element, two sides of the partition part are not communicated, and the first cavity is not communicated with the second cavity; the third port is communicated with a second cavity, the fourth port can be communicated with the third port through the first port of the first port part, the sixth port can be communicated with the third port through the second port of the second port part, and at least one of the fourth port and the sixth port is communicated with the second cavity; the second port is communicated with the first cavity, the first port can be communicated with the second port through the fourth port of the fourth port part, the fifth port can be communicated with the second port through the third port of the third port part, and at least one of the first port and the fifth port is communicated with the first cavity.

3. The thermostatic valve according to claim 2 wherein said valve seat assembly includes a valve seat, at least one sealing member positioned outwardly of said valve seat, said sealing member positioned between said valve seat and said interior wall portion of said valve body for sealing engagement with said interior wall portion of said valve body; the valve seat assembly is arranged opposite to the thermal actuator in a sealing mode, the valve seat assembly is matched with the thermal actuator to enable the first cavity and the second cavity of the valve body not to be communicated, the thermal actuator comprises a push rod, and one end of the push rod penetrates through the valve seat assembly to be partially located in the first cavity.

4. The thermostat valve of claim 2, wherein the valve seat assembly includes a valve seat, at least one sealing member positioned outwardly of the valve seat, at least one sealing member positioned inwardly of the valve seat, the sealing member positioned outwardly of the valve seat between the valve seat and the inner wall portion of the valve body for sealing engagement with the inner wall portion of the valve body; the heat actuated element comprises an ejector rod and a body part, and a sealing piece at the inward part of the valve seat is positioned between the valve seat and the ejector rod and is used for being matched with the ejector rod to realize dynamic sealing.

5. The thermostat valve according to any one of claims 1-4, wherein the thermal element is capable of engaging the first port portion and the second port portion to render the first port or the second port non-conductive, and the valve element is capable of engaging the third port portion and the fourth port portion to render the third port or the fourth port non-conductive; the tempering valve comprises at least two working modes: a first operating mode, a second operating mode, wherein in the first operating mode: the thermal element is in an initial state or the length of the thermal element is relatively short, the thermal element is matched with the second valve port part to make the second valve port non-conductive, the valve core is matched with the third valve port part to make the third valve port non-conductive, the thermal element does not close the first valve port part, the valve core does not close the fourth valve port part, and the first valve port and the fourth valve port can be conducted; in the second operating mode: the thermal element is in a state of relatively high temperature or the length of the thermal element is relatively long, the second valve port and the third valve port can be conducted, the thermal element is matched with the first valve port part to enable the first valve port to be not conducted, and the valve core is matched with the fourth valve port part to enable the fourth valve port to be not conducted.

6. The temperature regulating valve according to claim 5, further comprising a third chamber, wherein the first chamber and the third chamber are arranged in a sealing manner, the third chamber is located between the first chamber and the second chamber, the second port is communicated with the first chamber, the third port is communicated with the second chamber, and the sixth port is communicated with the third chamber; the third cavity can be communicated with the second cavity through a second valve port of the second valve port part; the valve seat assembly comprises at least two first columnar parts, at least one second columnar part and a separating part, wherein the separating part is relatively positioned between the first columnar part and the second columnar part; the valve seat assembly is provided with the second valve port portion and a third valve port portion, the second cylindrical portion connects the second valve port portion and the partition portion, and the second cylindrical portion is located between the second valve port portion and the partition portion.

7. The thermostat valve of claim 6, wherein the valve seat assembly further includes a generally semi-annular ring portion, two first post portions connecting the ring portion and the partition portion, the first post portions having an inwardly facing surface that is generally arcuate when viewed axially and an axially extending generally cylindrical configuration, the inwardly facing surface of the ring portion being arcuate when viewed axially, the ring portion and the first post portions being part of the third orifice portion, the valve element being in sliding engagement with the inwardly facing surfaces of the ring portion and the first post portions.

8. The thermostat valve according to claim 6, wherein the valve seat assembly further includes a substantially semi-annular portion, two first pillar portions connecting the annular portion and the partition portion, an inwardly facing surface of the first pillar portions being of a substantially arcuate configuration when viewed in the axial direction, and extending in the axial direction to be of a substantially cylindrical configuration, an inwardly facing surface of the annular portion being of an arcuate configuration when viewed in the axial direction, the annular portion and the first pillar portions being part of the third valve orifice portion, the valve element being in sliding engagement with the inwardly facing surfaces of the annular portion and the first pillar portions;

the valve body comprises two steps in a direction relatively close to the first interface: the valve core is in sliding fit with an inner wall part of a cavity formed between the first step part and the second step part; the valve core comprises a supporting part, one end of the second elastic element is abutted with the supporting part of the valve core, the thermal element is abutted with the second elastic element through the valve core, and the other end of the second elastic element is abutted with the second step part of the valve body.

9. A thermostatic valve according to claim 8 wherein said thermal element comprises a plunger and a thermal element body, the thermal element body comprising a second portion, a first portion, the second portion being fixedly disposed relative to the first portion, the first portion being disposed between the second portion and the plunger, the plunger being operable relative to the second portion and the first portion upon a change in temperature; the second part is at least partially positioned in the second cavity, the ejector rod penetrates through the partition part to enable one end of the ejector rod to be positioned in the first cavity, the thermal actuator is abutted with the first elastic element through the second part, and the thermal actuator is abutted with the second elastic element through the ejector rod; the first valve port part is of a step-shaped structure, the second part is matched with the first valve port part, and at least part of the second part is larger than the hole of the step-shaped structure of the first valve port part; the second valve port part is of an annular structure, the first part is matched with the second valve port part, and at least part of the first part is larger than the hole of the annular structure of the second valve port part.

10. The temperature control valve according to claim 9, wherein the valve body is engageable with the fourth port portion to render the fourth port non-conductive, the valve body is engageable with the third port portion to render the third port non-conductive, the valve body is engageable with the valve seat when the third port is non-conductive, and an axial distance (L) from the first stepped portion to an end surface of the valve body for abutting against the valve seat is larger than an axial height (h) of the valve body; the valve core is at least partially approximately cylindrical or columnar in shape, and the maximum distance between the inward wall parts of the two first columnar parts is larger than the outer diameter of the valve core; the second elastic element is abutted with the ejector rod through the valve core.

11. A tempering valve according to any of the previous claims 6-10, characterized in that said first valve body and or second valve body is machined by metal casting in combination or by stamping and then machining or by injection molding using thermoplastic or thermosetting plastic material or by machining a profile, said first and second valve body are fixedly connected by bolts or by snap fastening, and at least one sealing element is arranged between them.

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