CN114439908A

CN114439908A - Heat exchange assembly

Info

Publication number: CN114439908A
Application number: CN202011214222.5A
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: 2020-11-04
Filing date: 2020-11-04
Publication date: 2022-05-06

Abstract

A heat exchange assembly comprises a valve module, a connecting block and a heat exchange core body, wherein the valve module is fixedly connected with the connecting block, the connecting block is fixedly connected with the heat exchange core body, the valve module is provided with a heat-actuated part and a valve core, the heat-actuated part is positioned in a first flow passage, the valve core is positioned in a passage communicated with a second flow passage, when the temperature of a first fluid is within a preset range, the valve core is far away from a valve port along with the temperature rise of the first flow passage, the valve core is close to the valve port along with the temperature reduction of the first flow passage, and then the flow rate of the second fluid entering the second flow passage is adjusted, so that the heat exchange quantity of the first fluid and the second fluid is favorably adjusted.

Description

Heat exchange assembly

Technical Field

The invention relates to the technical field of fluid control, in particular to a heat exchange assembly.

Background

The lubricating oil cooling system of the gearbox comprises a temperature regulating valve component and a heat exchanger, wherein in the lubricating oil cooling system, the temperature regulating valve controls the opening and closing of a lubricating oil flow path according to the temperature of lubricating oil, the flow path of cooling liquid is not controlled by the temperature regulating valve, and the heat exchange quantity of the lubricating oil and the cooling liquid in a heat exchange core body fluctuates within a certain range and the performance of the lubricating oil can be influenced.

Disclosure of Invention

The invention aims to provide a heat exchange assembly, which can better control the heat exchange quantity of the heat exchange assembly.

One embodiment of the present disclosure provides a heat exchange assembly including a valve module, a connection block, and a heat exchange core, the connection block being fixedly connected to the heat exchange core, the connection block having a mounting hole, at least a portion of the valve module being located in the mounting hole, the heat exchange core having a first flow channel and a second flow channel, the first flow channel and the second flow channel being relatively unconnected, a first fluid in the first flow channel and a second fluid in the second flow channel being capable of exchanging heat in the heat exchange core, the first flow channel including a first hole, the valve module including a heat valve and a valve core, the heat valve being located in the first hole, the heat exchange assembly having a first communication channel, a valve port, and a first port, the first port being capable of being in communication with the first communication channel by being engaged with the valve port by the valve device, the first communication channel being in communication with the second flow channel, the thermal valve is configured to actuate the valve element according to a temperature change of the first fluid in the first port, and when the temperature of the first fluid is in a predetermined range, the valve element is away from the valve port as the temperature of the first fluid increases, and the valve element is close to the valve port as the temperature of the first fluid decreases.

In the heat exchange assembly provided by the above embodiment of the application, the thermal power portion is located in a first hole for flowing a first fluid, the first port can be communicated with the first communicating channel through the valve port, the first communicating channel is communicated with a second channel for flowing a second fluid, the thermal power portion can drive the valve core to act according to a temperature change of the first fluid in the first hole, when a temperature of the first fluid reaches a set temperature, the valve core is far away from the valve port along with a rise of the temperature of the first fluid, a flow rate of the second fluid entering the heat exchange core is increased, the valve core is close to the valve port along with a decrease of the temperature of the first fluid, a flow rate of the second fluid entering the heat exchange core is decreased, a flow rate of the second fluid flowing through the heat exchange core is controlled according to the temperature of the first fluid, and further, a heat exchange amount of the first fluid and the second fluid in the heat exchange core is adjusted, so that the heat exchange amounts of the first fluid and the second fluid in the heat exchange core are matched, the heat exchange amount of the heat exchange assembly can be better controlled, and the performance of lubricating oil is improved.

Drawings

FIG. 1 is a schematic perspective view of a first embodiment of a heat exchange assembly of the present application;

FIG. 2 is a schematic top view of the heat exchange assembly of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the heat exchange assembly of FIG. 2 taken along section A-A;

FIG. 4 is a perspective view of the connector block of FIG. 1;

FIG. 5 is a schematic top view of the connector block of FIG. 4;

FIG. 6 is a cross-sectional view of the connecting block of FIG. 5 taken along section B-B;

FIG. 7 is a schematic perspective view of the heat exchange core of FIG. 1;

FIG. 8 is a schematic front view of a second embodiment of the heat exchange assembly of the present application;

FIG. 9 is a cross-sectional structural view of the thermal module of FIG. 8 taken along section C-C;

FIG. 10 is a schematic front view of the first embodiment of the valve module of FIG. 8;

FIG. 11 is a cross-sectional structural view of the valve module of FIG. 10 taken along section D-D;

FIG. 12 is a schematic front view of a second embodiment of the valve module of FIG. 8;

FIG. 13 is a cross-sectional structural view of the valve module of FIG. 12 taken along section E-E.

Detailed Description

The technical solution is specifically described below with reference to the accompanying drawings and the specific embodiments, and the upper and lower parts described in this specification are explained according to the corresponding orientation relationship in the drawings.

As shown in fig. 1 to 3, a heat exchange assembly 100, which can be used in a lubricating oil cooling system of a transmission, includes a valve module 1, a connecting block 2 and a heat exchange core 3, the connecting block 2 is fixedly connected to the heat exchange core 3, the connecting block 2 has a mounting hole 21, at least a portion of the valve module 1 is located in the mounting hole 21, the heat exchange core 3 has a first flow passage 31 and a second flow passage 32, the first flow passage 31 and the second flow passage 32 are relatively unconnected, a first fluid in the first flow passage 31 and a second fluid in the second flow passage 32 can be heat exchanged in the heat exchange core, the first flow passage 31 includes a first hole passage 311, the valve module 1 includes a heat valve element 11 and a valve spool 12, a portion of the heat element 11 is located in the first hole passage 311, the heat exchange assembly has a first communication passage 10, a valve port 134 and a first port 130, the first port 130 can be communicated with the first communication passage 10 by the valve port 134 cooperating with the valve spool 12, the first communicating channel 10 communicates with the second flow channel 32. When the temperature of the first fluid in the first orifice 311 is lower than the set temperature, the valve element 12 closes the valve port 134, the coolant cannot enter the heat exchange core 3 through the first communication passage 10, and the lubricating oil does not exchange heat with the coolant. When the temperature of the first fluid in the first hole 311 is higher than or equal to the set temperature, the heat sensitive substance in the heat transfer portion expands to drive the valve element to move upward, the valve element 12 opens the valve port 134, and the cooling liquid enters the heat exchange core body 3 through the first communication channel 10 to exchange heat with the first fluid, so as to reduce the temperature of the lubricating oil. The thermal valve 11 can drive the valve element 12 to act according to the temperature change of the fluid in the first port 311, and as the temperature of the first fluid rises, the valve element is far away from the valve port, that is, the opening degree of the valve port increases, and as the temperature of the first fluid decreases, the valve element is close to the valve port, that is, the opening degree of the valve port decreases. Therefore, the heat exchange assembly of the present embodiment can control the flow rate of the second fluid in the second flow passage 32 according to the temperature of the first fluid in the first flow passage 31. It should be noted here that the first fluid may be transmission lubrication oil and the second fluid may be cooling fluid. When the temperature of the lubricating oil reaches the set temperature, the opening degree of the valve port is smaller, and the flow of the cooling liquid entering the heat exchange core body is smaller; along with the rise of the temperature of the lubricating oil, the opening degree of the valve port is increased, the flow of the cooling liquid entering the heat exchange core body is also larger, the matching of the heat exchange quantity of the lubricating oil and the cooling liquid in the heat exchange core body is realized, and the lubricating oil of the gearbox is prevented from being excessively cooled or having overhigh temperature; and part of the valve modules are positioned on the heat exchange core body, so that the integration level of the heat exchange assembly is improved.

As shown in fig. 1 to 7, the heat exchange core includes a first plate 33 and a second plate 34, and the bottom wall of the connection block 2 is welded and fixed to the first plate 33. The heat exchange core has a first porthole 311 and a second porthole 321, and the second porthole 321 forms a second porthole 3210 on the wall of the first plate 33. The second plate 34 has a second port 341, the second port 341 may be a first hole inlet, the second plate 34 further has a third port 342, and the third port 342 may be a second hole inlet, although in other embodiments, the second port 341 may be an outlet of the first hole, and the third port 342 may be a second hole inlet.

The connecting block and the heat exchange core body are welded and fixed, the connecting block comprises an installation part, the installation part is provided with an installation hole, the installation part comprises a first matching part and a second matching part, and the second matching part is close to the heat exchange core body than the first matching part. Valve module 1 still includes valve body 13 and spring 14, and at least some valve bodies are located the mounting hole, and specifically, valve body 13 includes first connecting portion 131, and first connecting portion and first cooperation portion fixed connection or spacing connection just are sealed relatively in the junction, and the connected mode includes welding, threaded connection or other connected modes, and in this embodiment, first cooperation portion 212 is the internal thread, and first connecting portion 131 is the external screw thread, and the valve body passes through threaded connection with connecting block 2.

The valve body has a first port 130, a valve chamber 132 in communication with the first port, and a valve port 134 in communication with the valve chamber when the valve port is opened by the valve spool. The spring 14 is located in the valve cavity 132, one end of the spring 14 relatively close to the first port 130 is limited by a retainer ring, and one end of the spring 14 relatively far away from the first port 130 is abutted with the valve core 12.

The thermal actuator 11 includes a thermal actuator body 111, a second connection portion 112 and a valve stem 114, the valve plug 12 and the valve stem 114 are integrated or connected, the thermal actuator body 111 is located in the first port, and the thermal actuator body can actuate the valve stem 114 according to a temperature of a fluid in the first port, so that the valve stem drives the valve plug to actuate in the valve cavity. Along the axial direction of the first duct 311, the first connecting portion 131 is closer to the first port 130 than the second connecting portion 112, the second connecting portion is closer to the valve body than the thermal body, at least part of the valve stem is closer to the valve body than the second connecting portion, the second connecting portion is also located in the mounting hole, and the second connecting portion is fixedly connected with the second matching portion or in a limiting connection manner and is relatively sealed at the connecting portion. In this embodiment, the second mating portion includes a first groove 1121 and a second groove 1122, and a seal ring is disposed in each of the first groove 1121 and the second groove 1122. The second connecting portion 112 is in interference fit with the second fitting portion 213, and the sealing rings disposed in the first concave groove 1121 and the second concave groove 1122 seal the connection between the second connecting portion and the second fitting portion.

As shown in fig. 3 to 7, the heat exchange assembly has a first communicating passage 10 communicating with the first porthole 311. Specifically, the bottom wall of the connecting block is welded and fixed with the first plate body of the heat exchange core body, the connecting block 2 further comprises a concave portion 22, the concave portion 22 is provided with a concave cavity 23, the concave cavity is provided with an opening facing the first plate body on the bottom wall of the connecting block, the opening of part of the concave cavity faces a second pore channel, the second pore channel is communicated with the concave cavity, and in the embodiment, the wall forming the first communication channel comprises the wall of the concave portion and the wall of the corresponding first plate body. The cavity has an opening in the inner wall of the mounting portion, the cavity being in communication with the mounting hole.

Further, in other embodiments, the recess 22 may further include a first sub-portion 221 and a second sub-portion 222, and the first sub-portion 221 is closer to the first port 130 than the second sub-portion 222 along the axial direction of the first hole 311. The first sub-portion 221 has a first sub-cavity 2210, the second sub-portion 222 has a second sub-cavity 2220, the second sub-cavity 2220 has an opening in the bottom wall of the connection block 2, the first sub-cavity 2210 has an opening in the wall of the second sub-portion 222, the first sub-cavity 2210 communicates with the second sub-cavity 2220, the first sub-cavity 2210 has an opening 211 in the wall of the mounting hole 21, and the first sub-cavity 2210 communicates with the mounting hole 21 through the opening 211. The first sub-part is arranged to reduce the flowing resistance of the second fluid in the first communication channel, the height of the second sub-part in the axial direction of the valve body is smaller than that of the first sub-part, and the installation space of the connecting block is reduced. It should be noted here that the first sub-portion 221 and the second sub-portion 222 may be integrally provided.

Example two:

as shown in fig. 8 to 9, the valve body 13 includes a third connecting portion 133, the thermal actuator 11 includes a third mating portion 113, and the third connecting portion 133 is fixedly connected or connected in a limited manner to the third mating portion 113. The valve body 13 further has a communication hole 135 communicating with the valve port, the communication hole being closer to the heat actuator than the valve port, the communication hole 135 being located between the first connection portion 131 and the second connection portion 112 in the axial direction of the first orifice 311, the communication hole 135 having a communication port communicating with the first communication passage at an outer wall of the valve body.

In one embodiment of the present embodiment, the third connecting portion 133 is a female screw, the female screw 1331 is located inside the valve body 13, and the female screw is located below the communication hole 135 in the axial direction of the valve body 13. The third matching portion is an external thread 1131, the external thread is closer to the valve body than the second connecting portion, and the third connecting portion is in threaded connection with the third matching portion.

In the second embodiment of this embodiment, as shown in fig. 10 and 11, a part of the thermal element is located in the valve body, the third connection part is a first through hole 1332, and the third mating part is a third groove. The first through hole 1332 penetrates the valve body 13, and the first through hole 1332 is located below the communication hole 135 and the third groove 1132 is located in a peripheral wall of an end of the thermal actuator 11 away from the thermal actuator body 111 in the axial direction of the valve body 13. The valve module further includes a pair of pins 15, the pins 15 passing through the first through holes 1332 and partially located in the third grooves 1132, and the third connection parts and the third mating parts connected by the pins. It should be noted here that the third mating portion may also be a blind hole, the blind hole is located at the end of the thermal actuator 11 away from the thermal actuator body 111 and communicates with the first through hole 1332, the pin 15 passes through the first through hole 1332 and is partially located in the blind hole, and the third connecting portion and the third mating portion are connected by the pin.

In the third embodiment of the present embodiment, as shown in fig. 12 and 13, the third connecting portion is the end of the valve body 13 away from the first port 130, the third mating portion has a fourth groove 1133, the fourth groove 1133 has an opening facing the valve body 13, and the third connecting portion is located in the fourth groove 1133. The third connecting part is in interference fit with the third matching part. In other embodiments, the third mating portion is an end portion of the thermal actuator away from the thermal actuator body, the third mating portion is located in the third connecting portion, and the third connecting portion is in interference fit with the third mating portion.

The above description is only exemplary of the present invention and should not be taken as limiting the invention in any way. The terms top, bottom, upper, lower, left and right are used in an illustrative sense only and should not be construed to limit the orientation of the terms. The above embodiments are not intended to limit the present invention, and those skilled in the art can make many possible variations and modifications to the technical solution of the present invention using the above technical content, or modify equivalent embodiments of the equivalent variations, without departing from the scope of the technical solution of the present invention. Therefore, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are still within the protection scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims

1. A heat exchange assembly includes a valve module, a connection block, and a heat exchange core, the connection block is fixedly connected to the heat exchange core, the connection block has a mounting hole, at least a portion of the valve module is located in the mounting hole, the heat exchange core has a first flow passage and a second flow passage, the first flow passage and the second flow passage are not in relative communication, a first fluid in the first flow passage and a second fluid in the second flow passage can exchange heat in the heat exchange core, the first flow passage includes a first hole passage, the valve module includes a heat valve and a valve core, a portion of the heat valve is located in the first hole passage, the heat exchange assembly has a first communication passage, a valve port, and a first port, the first port can be in communication with the first communication passage through the valve port, the first communication passage is in communication with the second flow passage, the heat valve core can be actuated by the heat valve core according to a temperature change of the first fluid in the first hole passage, when the temperature of the first fluid is in a predetermined range, the valve element is away from the valve port as the temperature of the first fluid increases, and the valve element is close to the valve port as the temperature of the first fluid decreases.

2. The heat exchange assembly of claim 1, wherein the valve module includes a valve body, the valve body includes a first connecting portion located in the mounting hole, the thermal actuator includes a second connecting portion located in the first porthole, and the thermal actuator includes a first engaging portion and a second engaging portion, the first connecting portion is fixedly or limitedly connected to the first engaging portion and relatively sealed at the connection, the second connecting portion is fixedly or limitedly connected to the second engaging portion and relatively sealed at the connection, the first connecting portion is closer to the first port than the second connecting portion, and the second connecting portion is closer to the valve body than the thermal actuator in an axial direction of the first porthole.

3. The heat exchange assembly as claimed in claim 1 or 2, wherein the valve body has a valve cavity and the valve port, the thermal actuator includes a valve rod, the valve rod and the valve core are integrally formed or connected, the valve core is located in the valve cavity, the valve cavity is communicated with the first port, and when the valve core opens the valve port, the valve cavity is communicated with the valve port.

4. The heat exchange assembly of claim 3, wherein the valve body comprises a third connecting portion, the thermal actuator comprises a third mating portion, and the third connecting portion is fixedly connected or connected in a limiting manner with the third mating portion;

the valve body has a communication hole having a communication opening communicating with the first communication passage in an outer wall of the valve body, the communication hole being located between the first connection portion and the second connection portion in an axial direction of the first hole passage.

5. The heat exchange assembly according to claim 4, wherein the third connecting portion is an internal thread which is located inside the valve body in an axial direction of the valve body, the internal thread being located below the communication hole, the third fitting is an external thread which is closer to the valve body than the second connecting portion, and the third connecting portion is screwed with the third fitting portion;

or, the valve module further comprises a pair of pins, the third connecting part is a first through hole, the third matching part is provided with a third groove or a blind hole, and the third connecting part and the third matching part are connected through the pins;

or the third matching part is provided with a fourth groove, the fourth groove is provided with an opening facing the valve body, the third connecting part is positioned in the fourth groove, and the fourth groove is in interference fit with the third connecting part;

or the third matching part is an end part of the thermal actuator far away from the thermal actuator body, the third matching part is positioned in the third connecting part, and the third connecting part is in interference fit with the third matching part.

6. The heat exchange assembly of claim 5, wherein the connecting block comprises a recess having a cavity with an opening at a bottom wall of the connecting block, the heat exchange core comprises a first plate body, at least a portion of the first plate body is welded and fixed with the bottom wall of the connecting block, and the wall of the first communication channel comprises a wall of the recess and a corresponding wall of the first plate body;

the second flow passage comprises a second hole passage, the second hole passage is provided with a second hole passage opening on the wall of the first plate body, and the opening of part of the cavity faces the second hole passage opening.

7. The heat exchange assembly of claim 6, wherein the recess includes a first sub-portion and a second sub-portion, the first sub-portion being closer to the first port than the second sub-portion in an axial direction of the first porthole, the first sub-portion having a first sub-chamber having an opening facing the communication hole at a wall of the mounting hole, the first sub-chamber being in communication with the communication hole;

the second sub-portion has a second cavity having an opening in a bottom wall of the connecting block, the first sub-cavity has an opening in a wall of the second sub-portion, and the first sub-cavity is in communication with the second sub-cavity.

8. The heat exchange assembly of claim 7 wherein the heat exchange core comprises a second plate body, and the first porthole forms an outlet or inlet of the first flow channel in the second plate body.