CN113804027A - Thermal management device - Google Patents

Abstract

The invention discloses a heat management device which comprises a connecting body, a throttling unit and a heat exchange core body, wherein a pipe body is positioned in a first pore passage, the pipe body is fixed with a valve port part through a connecting part so as to realize the communication between a pipe body cavity and the valve port, and the connecting part is fixed with a first valve body.

Description

Thermal management device

Technical Field

The invention relates to the technical field of thermal management, in particular to a thermal management device.

Background

The heat management system comprises a heat exchanger and an expansion valve, wherein the heat exchanger is communicated with the expansion valve in a pipeline connection mode. The heat exchanger and the expansion valve are integrated, and the valve body of the expansion valve is fixed with the heat exchanger, so that the whole structure is compact, and the connecting pipe is still connected with the valve body of the expansion valve.

Disclosure of Invention

It is an object of the present application to provide a thermal management device to facilitate miniaturization of the thermal management device structure.

One embodiment of the technical scheme of the invention provides a heat management device, which comprises a connecting body, a throttling unit and a heat exchange core body, wherein the heat exchange core body comprises a plurality of stacked plates, a first plate body and a second plate body, and the plates are positioned between the first plate body and the second plate body along the stacking direction of the plates; the heat exchange core body is also provided with a first pore channel;

the throttling unit comprises a first valve body and a valve port part, the throttling unit is provided with a first channel and a second channel, the valve port part is provided with a valve port, and the valve port can be communicated with the first channel and the second channel; the first valve body is fixed with the second plate body and comprises a first through hole, and the bottom wall of the first valve body is provided with an opening facing the first pore passage;

the connector includes body and connecting portion, and at least part the body is located first pore, the body chamber with the second passageway intercommunication, connecting portion have the intercommunication chamber and hold at least part the first chamber that holds of valve opening portion, the intercommunication chamber intercommunication first passageway with first pore, connecting portion still include the fixed part, the fixed part with the wall of first through-hole is fixed to be set up.

The heat management device provided by the above embodiment of the application comprises a connecting body, a throttling unit and a heat exchange core body, wherein the pipe body is positioned in the first pore channel, the pipe body is fixed with the valve port part through the connecting part so as to realize the communication between the pipe body cavity and the valve port, and the connecting part is fixed with the first valve body, so that the heat management device is relatively compact in structure and beneficial to miniaturization.

Drawings

FIG. 1 is a schematic block diagram of a connection of a thermal management system;

FIG. 2 is a schematic block diagram of another connection of a thermal management system;

FIG. 3 is a schematic perspective view of a first embodiment of a thermal management device;

FIG. 4 is a schematic view of the partially exploded perspective structure of FIG. 3 from a first perspective;

FIG. 5 is a perspective view from a second perspective of the partial explosion of FIG. 3;

FIG. 6 is a schematic top view of FIG. 3;

FIG. 7 is a schematic view of a first cross-sectional configuration taken along line A-A of FIG. 6;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 6;

FIG. 9 is a perspective view of the connecting part;

FIG. 10 is an enlarged schematic view of portion A of FIG. 7;

FIG. 11 is an enlarged schematic view of the portion B of FIG. 7;

FIG. 12 is a schematic perspective view of a second embodiment of a thermal management device;

FIG. 13 is a second enlarged view of portion A;

FIG. 14 is a schematic view of another cross-sectional configuration taken along line A-A of FIG. 6;

fig. 15 is a plate structure diagram of the second heat exchanging portion in fig. 14;

FIG. 16 is an enlarged schematic view of portion A of FIG. 14;

FIG. 17 is a perspective view of a third embodiment of a thermal management device.

Detailed Description

The thermal management system and the thermal management device in the technical scheme of the invention can be implemented in various ways, at least one of which can be applied to a vehicle thermal management system, and at least one of which can be applied to other thermal management systems such as a household thermal management system or a commercial thermal management system, and the following description takes the vehicle thermal management device as an example and is combined with the accompanying drawings.

Please refer to fig. 3-11. The thermal management device 1000 comprises a heat exchanging core comprising a first plate body 1140 and a second plate body 1210 and a plurality of stacked plates between the first plate body 1140 and the second plate body 1210 in a stacking direction of the plates and a throttling unit 1300. In some embodiments, the heat exchanging core comprises a first heat exchanging part 1100, a connecting plate body 1400 and a second heat exchanging part 1200, in this embodiment, the first plate body 1140 is a part of the first heat exchanging part 1100, the second plate body 1210 is a part of the second heat exchanging part 1200, the first heat exchanging part 1100 further comprises a top plate, and a plurality of plates of the first heat exchanging part 1100 are stacked from the first plate body 1140 to the top plate. The second heat exchanging part 1200 further includes a bottom plate, and a plurality of plates of the second heat exchanging part 1200 are stacked from the bottom plate to the second plate body 1210. The connecting plate 1400 is located between the top plate and the bottom plate and is welded and fixed with the top plate and the bottom plate. In another embodiment, the top plate and the bottom plate may not be provided, and the connection plate 1400 may be directly welded and fixed to the plate of the first heat exchanging unit 1100 and the plate of the second heat exchanging unit 1200. It should be noted that, for convenience of description, the second heat exchanging part 1200 is defined to be located above the first heat exchanging part 1100. Certainly, the connection plate body may not be provided, the heat exchange core is a set of structure, the heat exchange core includes a first plate 1140, a second plate 1210, and a plurality of stacked plates located between the first plate 1140 and the second plate 1210 along the stacking direction of the plates, and along the stacking direction of the plates, the plates are located between the first plate 1140 and the second plate 1210, and a plurality of plates are stacked from the first plate 1140 to the second plate 1210, or a plurality of plates are stacked from the second plate 1210 to the first plate 1140.

The first heat exchanging part 1100 and the second heat exchanging part 1200 each include a plurality of stacked plates, and the plate structures of the first heat exchanging part 1100 and the second heat exchanging part 1200 may be the same, and the first heat exchanging part 1100 is taken as an example to describe the structure thereof. In the first heat exchanging portion 1100, adjacent plates are stacked to form a first inter-plate flow channel and a second inter-plate flow channel, except for two plates closest to the first plate 1140 and the top plate, one side of the inner plate is a first inter-plate flow channel, and the other side is a second inter-plate flow channel. The fluid of the first plate interspaces may be heat exchangeable with the fluid of the second plate interspaces. It should be noted that the first inter-plate flow channels and the second inter-plate flow channels are not communicated with each other relatively, which means that the first heat exchanging portion 1100 is not communicated with each other, and the thermal management device 1000 may be communicated with each other after becoming a part of the thermal management system. The thickness of the body portion of the connecting plate, top plate, and bottom plate described herein is greater than the thickness of the body portion of the sheet, and serves to enhance the mechanical strength of the thermal management device.

The thermal management device 1000 has a refrigerant flow channel, a coolant flow channel, a first inlet 1001, a first outlet 1002, a second inlet 1003 and a second outlet 1004, the refrigerant flow channel connects the first inlet 1001 and the first outlet 1002, that is, the first inlet 1001 is an inlet of the refrigerant flow channel, and the first outlet 1002 is an outlet of the refrigerant flow channel; the coolant flow channel communicates with a second inlet 1003 and a second outlet 1004, the second inlet 1003 being an inlet of the coolant flow channel, and the second outlet 1004 being an outlet of the coolant flow channel. Wherein a second outlet 1004, a second inlet 1003 and a coolant flow channel are formed in the second heat exchanging portion 1200, a first outlet 1002 and a first inlet 1001 are formed in the first heat exchanging portion 1100, the second outlet 1004 and the second inlet 1003 are located on one side of the heat managing means 1000, and the first outlet 1002 and the first inlet 1001 are located on the opposite side of the heat managing means 1000 in the stacking direction of the slabs. The first inlet 1001 and the first outlet 1002 may be formed as a nipple or a protrusion fixedly connected to the first plate body, the second inlet 1003 and the second outlet 1004 may be formed as a nipple or a protrusion fixedly connected to the first plate body, and in other embodiments, the first inlet 1001 and the first outlet 1002 may be formed as a first plate body, and the second inlet 1003 and the second outlet 1004 may be formed as a first plate body.

Referring to fig. 7 and 8, the refrigerant flow channel includes a first flow channel, a second flow channel and a third flow channel, the first flow channel and the second flow channel are formed in the first heat exchanging portion 1100, the first inter-plate flow channel of the first heat exchanging portion 1100 is a part of the first flow channel, and the second inter-plate flow channel of the first heat exchanging portion 1100 is a part of the second flow channel. The third flow passage is formed in the second heat exchanging portion.

In this embodiment, referring to fig. 7 and 8, the first heat exchanging portion 1100 at least includes a fifth porthole 1160, a second porthole 1120, a third porthole 1130, and a fourth porthole 1150, which extend along the plate stacking direction of the first heat exchanging portion. The first flow channel comprises a fifth channel 1160, first plate-to-plate channels between the plates and a second channel 1120, and the first plate-to-plate channels of the first heat exchanging part 1100 are communicated with the fifth channel 1160 and the second channel 1120. In this embodiment, the first inlet 1001 is communicated with the fifth channel 1160, the refrigerant enters the fifth channel 1160 from the first inlet 1001, then enters the first inter-plate channel of the first heat exchanging part, and enters the second channel 1120 after exchanging heat with the refrigerant in the second inter-plate channel of the first heat exchanging part, the second channel 1120 has an opening on the top plate of the first heat exchanging part, and the refrigerant leaves the first heat exchanging part 1100 through the opening of the top plate of the first heat exchanging part. The second flow channel includes third portholes 1130, second plate-to-plate channels between the plates, and fourth portholes 1150, and the second plate-to-plate channels of the first heat exchanging part 1100 communicate the third portholes 1130 and the fourth portholes 1150. The first outlet 1002 is communicated with the fourth orifice 1150, that is, the refrigerant in the second flow channel enters the second inter-plate channel of the first heat exchanging part 1100 through the third orifice 1130, exchanges heat with the refrigerant in the first inter-plate channel, and then enters the fourth orifice 1150, and the refrigerant in the fourth orifice 1150 exits the heat management device through the first outlet 1002.

The first inter-plate flow channels of the second heat exchanging part 1200 are part of the third flow channels, and the second inter-plate flow channels of the second heat exchanging part 1200 are part of the coolant flow channels. The second heat exchanging part 1200 includes at least a first hole passage 1240, a sixth hole passage 1230, a seventh hole passage 1260 and an eighth hole passage 1270, wherein the first hole passage 1240 and the sixth hole passage 1230 are a part of the third flow passage, and the seventh hole passage 1260 and the eighth hole passage 1270 are a part of the cooling liquid flow passage. The third flow channel comprises a first channel 1240 and a sixth channel 1230, and is located in the first inter-plate flow channel of the second heat exchange portion 1200, and the first inter-plate channel of the second heat exchange portion 1200 is communicated with the first channel 1240 and the sixth channel 1230. The coolant flow passage includes a seventh bore 1260, second plate interspaces in the second heat exchanging part 1200 and an eighth bore 1270, the second plate interspaces of the second heat exchanging part 1200 communicating the seventh bore 1260 and the eighth bore 1270. In this embodiment, the second inlet 1003 is communicated with the seventh bore 1260, the second outlet 1004 is communicated with the eighth bore 1270, and the cooling liquid enters the seventh bore 1260 from the second inlet 1003, then enters the second inter-plate channel of the second heat exchanging part 1200, exchanges heat with the refrigerant in the third flow channel, enters the eighth bore 1270, and is discharged out of the heat management device from the second outlet 1004.

Along the plate stacking direction, the connection plate body 1400 is located between the first heat exchange portion 1100 and the second heat exchange portion 1200, specifically, the first heat exchange portion 1100 includes a first wall 1110, and the second heat exchange portion 1200 includes a second wall 1220, in this embodiment, the first wall 1110 is formed on the top plate of the first heat exchange portion 1100, the second wall 1220 is formed on the bottom plate of the second heat exchange portion 1200, the lower side wall of the connection plate body 1400 is welded and fixed with the first wall 1110, and the upper side wall of the connection plate body 1400 is welded and fixed with the second wall 1220. The first wall 1110 and the second wall 1220 are oppositely disposed, and the relative disposition described herein includes an indirect relative disposition and a direct relative disposition, and the indirect relative disposition means that there is another object between the first wall 1110 and the second wall 1220, such as the connection plate 1400, and the connection plate 1400 may not be disposed between the first wall 1110 and the second wall 1220, that is, the first wall and the second wall are directly oppositely disposed and fixed by welding. The heat exchange core includes a first through hole 1410 and a second through hole 1420, in this embodiment, the first through hole 1410 and the second through hole 1420 are formed in the connecting plate body 1400, the first through hole 1410 and the second through hole 1420 penetrate the connecting plate body 1400, and openings are respectively formed in the upper wall and the lower wall of the connecting plate body 1400, and the second through hole 1420 communicates the sixth hole 1230 with the third hole 1130, that is, the second through hole 1420 communicates the third flow channel with the second flow channel. Specifically, the sixth aperture 1230 has a second opening 1231 in the second wall, the second opening 1231 facing at least partially toward the second through hole 1420 and communicating with the second through hole 1420. The third bore 1130 has a first opening 1131 in the first wall, the first opening 1131 facing at least partially toward the second through hole 1420, the first opening 1131 communicating with the second opening 1231 through the second through hole 1420, such that the third bore 1130 communicates with the sixth bore 1230 through the second through hole 1420. In this embodiment, the first opening 1131 and the second opening 1231 are disposed in a staggered manner, and the second through hole extends in a long and narrow manner, which is beneficial to smooth the circulation of the refrigerant at the second through hole, and of course, the first opening 1131 and the second opening 1231 may be disposed opposite to each other. The refrigerant of the third flow passage exchanges heat with the coolant of the coolant flow passage in the second heat exchanging portion 1200, and then enters the second flow passage of the first heat exchanging portion through the second through holes 1420, and then exchanges heat with the refrigerant of the first flow passage in the first heat exchanging portion 1100.

The first through hole 1410 communicates with the second hole 1120, and specifically, the second hole 1120 forms a first communication hole 1121 at the first wall 1110, and the first communication hole 1121 at least partially faces the first through hole 1410 and communicates with the first through hole 1410. Of course, the first wall 1110 is hermetically provided at the corresponding position of the connection plate body 1400 to prevent the refrigerant from leaking from the connection of the first heat exchanging part 1100 and the connection plate body 1400, and the second wall 1220 is hermetically provided at the corresponding position of the connection plate body 1400 to prevent the refrigerant from leaking from the connection of the second wall and the connection plate body 1400. In addition, in this embodiment, the connecting plate body 1400 further includes two square holes 1430, and the square holes 1430 serve to reduce the weight of the connecting plate body 1400, thereby reducing the weight of the thermal management device 1000; the two square holes 1430 are larger than the first through hole and the second through hole, and the square holes 1430 also have the function of reducing the heat conduction between the first heat exchange part 1100 and the second heat exchange part 1200; the two square holes 1430 are located near the middle of the connecting plate body 1400, and the middle of the first heat exchanging part 1100 and the second heat exchanging part 1200 has a large temperature difference, so that heat conduction is reduced, and the mass distribution of the heat management device is balanced.

Referring to fig. 7 and 10, the throttling unit 1300 includes a valve element, a valve port portion 1350 and a valve seat 1370, the throttling unit 1300 further includes a first channel 1353 and a second channel 1352, the valve port portion 1350 has a valve port 1351, the second channel 1352 is closer to the first plate 1140 than the valve port 1351, and the second channel 1352 is communicated with the valve port 1351. In this embodiment, the valve element is a valve needle 1320, and the valve needle 1320 can move relative to the valve port portion 1350, thereby adjusting the opening degree of the valve port 1351. The throttling unit 1300 further comprises a transmission mechanism, a stator, a rotor and a guide 1380, wherein the transmission mechanism is a thread transmission mechanism, the thread transmission mechanism comprises a movable part and a fixed part, one of the movable part and the fixed part comprises a screw, the other comprises a nut in threaded fit with the screw, the movable part is assembled with the valve needle 1320, and the fixed part can be directly or indirectly fixed with the valve seat 1370; the guide portion 1380 is fixed to the valve seat 1370, and the guide portion 1380 can guide the needle and prevent the axial movement of the needle from deviating. The valve port 1350 is fixedly connected to the guide 1380, and in this embodiment, the valve port 1350 is integrally provided with the guide 1380, the valve needle 1320 and the valve port 1351 are substantially coaxially held, the first passage 1353 is formed in the guide 1380, and when the valve needle 1320 opens the valve port 1351, the first passage 1353 communicates with the valve port 1351. The stator is electrically connected with a control circuit for controlling the stator, an excitation magnetic field generated by the stator can drive the rotor to rotate when the stator is electrified, the valve needle is further driven to move by the thread transmission mechanism, when the rotor rotates, the screw rod can rotate and move axially relative to the nut under the driving of the rotor due to the function of the thread pitch, and the valve needle is relatively fixed on the screw rod, so that the valve needle can move axially along with the screw rod, and further, the gap between the valve needle 1320 and the valve port 1351 is increased or decreased, and further, the throttling of the refrigerant is realized. In this embodiment, the first passage or a substantial portion of the first passage is substantially perpendicular to the direction of movement of the valve needle and the second passage is substantially parallel to the direction of movement of the valve needle.

The throttle unit 1300 further includes a first valve body 1310, which may be block-shaped or tubular, the first valve body 1310 includes a first through hole 1311, the first through hole 1311 has an opening on an upper wall of the first valve body 1310, the first through hole 1311 has a third opening 1312 on a bottom wall of the first valve body 1310, the bottom wall of the first valve body 1310 and the second valve body 1210 are relatively fixed, which may be welded, bonded or screwed, the second valve body 1210 has a fourth opening 1211, the fourth opening 1211 is communicated with the first duct 1240, the third opening 1312 and the fourth opening 1211 are oppositely disposed, the third opening 1312 and the fourth opening 1211 are communicated, and the third opening 1312 and the first duct 1240 are communicated. The valve seat 1370 extends into the cavity formed by the first through hole 1311 and is fixed to the wall of the first through hole 1311, wherein the valve seat 1370 is screwed or inserted or welded to the wall of the first through hole 1311, and the valve seat 1370 is relatively close to the upper wall of the first valve body compared to the bottom wall of the first valve body 1310.

The heat management device further comprises a connector, the connector comprises a pipe body 1500 and a connecting part 1340, the pipe body 1500 and the connecting part 1340 are fixedly arranged, the pipe body 1500 and the connecting part 1340 can be of an integral structure or a split structure, and then are fixed through welding, in this embodiment, the pipe body 1500 and the connecting part 1340 are separately arranged. At least a portion of the connecting portion 1340 extends into the cavity formed by the first through hole 1311 and is fixed to the wall of the first through hole 1311, specifically, the first through hole 1311 is formed with a first step surface 1313, and the connecting portion 1340 is fixed to the first step surface 1313. The connecting portion 1340 is relatively close to the lower wall of the first valve body compared to the upper wall of the first valve body. The space between the valve seat 1370 and the connecting portion 1340 forms a valve chamber 1330 in the direction in which the first through hole 1311 extends, and when the valve needle 1320 opens the valve port 1351, the valve port 1351 communicates with the valve chamber 1330 through the first passage 1353.

Referring to fig. 9 and 10, the connecting portion 1340 includes a fixing portion 1343 and a first accommodating portion 1341, the connecting portion 1340 further has a communicating cavity 1342, wherein the fixing portion 1343 is fixed to a wall of the first through hole 1311, in this embodiment, the throttle unit 1300 further includes a supporting ring 1360, the supporting ring 1360 is located in the first through hole 1311, an outer wall of the supporting ring is screwed to an inner wall 1310 of the first through hole, a first end of the supporting ring 1360 abuts against the fixing portion 1343, and the fixing portion 1343 is further limited relative to the first step surface 1313. In another embodiment, the second end of the support ring 1360 abuts against the second plate body 1210, the first end of the support ring 1360 abuts against the fixing portion 1343, and the support ring 1360 limits the connecting portion 1340 to the first step surface during welding, thereby preventing the connecting portion 1340 from being displaced. In another embodiment, the outer diameter of the backup ring is matched with the inner diameter of the first through hole, the backup ring 1360 is tightly fitted to the first through hole 1311, and the fixing portion 1343 is brought into contact with the first step surface 1313.

The first receiving portion 1341 is formed with a first receiving cavity, at least a portion of the valve port 1350 is located in the first receiving cavity, and an outer wall of the valve port 1350 and an inner wall of the first receiving portion 1341 are hermetically disposed, for example, a sealing ring is disposed between the outer wall of the valve port 1350 and the inner wall of the first receiving portion 1341, so that the valve port 1350 can be directly inserted into the first receiving portion 1341 when the thermal management device is assembled. In another specific embodiment, the guide portion and the valve port portion body are arranged along the axial direction of the first duct, the first channel is a gap between the guide portion and the valve port portion, and the valve port portion and the guide portion body are arranged, so that the valve port portion and the first accommodating portion can be welded and sealed.

The refrigerant flow channels may further include a fourth flow channel, and in this embodiment, the fourth flow channel is located in the heat exchange core, and the fourth flow channel can communicate the first flow channel and the third flow channel. Specifically, the third flow channel includes a first hole 1240, the first flow channel includes a second hole 1120, at least a portion of the fourth flow channel is located in the first hole 1240, one end of the fourth flow channel is communicated with the second hole 1120, and the other end of the fourth flow channel is communicated with the valve port 1351 of the throttling unit 1300, so that the refrigerant in the first heat exchanging part 1100 can enter the valve port 1351 of the throttling unit through the fourth flow channel.

Tube 1500 is hollow, tube 1500 is open at both ends, and most of tube 1500 is located in first hole 1240, or first hole 1240 receives tube 1500, and specifically, referring to fig. 11, the first plate of the second heat exchanging portion includes first hole 1204, and the plurality of first holes 1204 form the first hole, and along the radial direction of first hole 1240, first hole 1240 is located on the circumferential side of tube 1500, or the first hole receives at least part of the fourth flow channel. In the axial direction of the first hole 1240, at least a portion of the tube 1500 is located between the valve port 1351 and the second wall 1220, the second end of the tube 1500 is located in the first through hole 1410, and an outer wall of the second end of the tube 1500 is sealingly fixed with an inner wall of the first through hole 1410, so that the cavity of the first through hole 1410 is communicated with the cavity of the tube 1500, and the first flow channel is communicated with the first through hole, thereby realizing communication between the first flow channel and the cavity of the tube 1500. It can be appreciated that the second wall 1220 of the second heat exchanging part 1200 has an opening for receiving the tube body 1500. In this embodiment, the fourth flow passage includes a cavity of the pipe body 1500, that is, the fourth flow passage is a part of the refrigerant flow passage and can communicate the first flow passage with the valve port 1351 of the throttle unit.

The connecting portion 1340 further includes a pipe body engaging portion 1344, and the pipe body engaging portion 1344 is closer to the first plate body than the first accommodating portion 1341 along the axial direction of the first duct. The first end of the pipe body 1500 is fixed to the pipe body matching portion 1344 in a sealing manner, specifically, the first end of the pipe body 1500 is located in a cavity formed by the pipe body matching portion 1344, an outer wall of the first end of the pipe body 1500 is fixed to an inner wall of the pipe body matching portion 1344 in a sealing manner, and the inner wall of the first end of the pipe body 1500 may be fixed to an outer wall of the pipe body matching portion 1344 in a sealing manner. Further, the tube body matching portion 1344 includes a closing-in section 13441 and a small-diameter section 13442, the radial dimension of the closing-in section becomes smaller from the first accommodating portion to the small-diameter section, the closing-in section 13441 is closer to the first accommodating portion 1341 than the small-diameter section 13442 along the axial direction of the first duct 1240, and the radial dimension of the closing-in section 13441 is larger than that of the small-diameter section; accordingly, the first end of the tube includes a flared section 1510 and a flat section 1520, with the small diameter section 13442 matching the flat section 1520 and the flared section 1510 matching the necked-in section 13441. Further, the tube mating portion 1344 includes a second receiving cavity for receiving the first end of the tube, the outer wall of the flared section 1510 is sealingly fixed to the inner wall of the closing section 13411, and the outer wall of the straight section 1520 is sealingly fixed to the inner wall of the small-diameter section 13442. Along the axial of first pore, have the clearance between the first end of body and the valve port portion, set up the clearance between the two to because of the displacement appears in expend with heat and contract with cold when preventing to weld reduces the welding effect. In addition, because the radial dimension of closing in the section diminishes, can be spacing to the body, the body removes towards first plate body when preventing to weld.

Along the extending direction of the first through hole 1311, the first end of the pipe body 1500 is closer to the second plate body than the valve port 1350, the valve port 1350 is relatively close to the valve seat 1370, and the opening of the pipe body 1500 faces the valve port 1351, so that the cavity of the pipe body 1500 communicates with the valve port 1351. The communication chamber 1342 is located between the fixing portion 1343 and the first accommodating portion 1341 in the radial direction of the first through hole 1311, and the communication chamber 1342 communicates with the valve chamber 1330 and the first bore 1240, and in this embodiment, the communication chamber is a hole penetrating the connecting portion 1340. When the thermal management device 1000 is in operation, the refrigerant flowing through the pipe 1500 is throttled at the valve port 1351, flows into the valve chamber 1330, and then flows into the first bore 1240 via the communicating chamber 1342, i.e., into the third flow channel. In this embodiment, the connecting portion 1340 is integrally formed by stamping a plate member, and has a substantially trumpet shape, and in other embodiments, the fixing portion of the connecting portion 1340 may be fixed between the second plate body 1210 and the first valve body 1310, or the fixing portion may be accommodated in the fourth opening 1211 and fixed to the inner wall of the fourth opening 1211, so that a support ring is not required, and the number of parts and assembly processes is relatively reduced. It should be noted that the fourth opening 1211 is a passage of the valve chamber communicating with the first bore 1240. Referring to fig. 11, the second heat exchanging part 1200 includes a first partition plate 1280, the first partition plate 1280 and a plate of the second heat exchanging part are integrated, the first partition plate 1280 forms a bottom wall of the first hole 1240 along an axial direction of the first hole 1240, the first partition plate 1280 includes a through hole for receiving the tube 1500, a wall of the through hole of the first partition plate 1280 is fixed to a wall of the tube 1500, and the through hole of the first partition plate 1280 is hermetically disposed between the wall of the through hole of the first partition plate 1280 and the wall of the tube 1500. In addition, referring to fig. 10, the second heat exchanging part 1200 further includes a second partition plate 1281, the second partition plate 1281 is closer to the throttling unit than the first partition plate, the second partition plate 1281 is located in the first hole 1240, the second partition plate 1281 and a plate of the second heat exchanging part are integrally formed, the second partition plate 1281 also has a through hole for accommodating the pipe body, and a wall of the through hole of the second partition plate 1281 is hermetically disposed with an outer wall of the pipe body, so that the second partition plate 1281 can change a flow direction of the refrigerant, and the second heat exchanging part 1200 has a plurality of flow paths.

Referring to fig. 7 and 8, the operation of the thermal management device 1000 is described with reference to the thermal management system shown in fig. 1. The thermal management system includes a compressor 100, a condenser 200, and a thermal management device 1000, an outlet of the compressor 100 being in communication with a first inlet 1001 of the thermal management device through the condenser 200, and a first outlet 1002 of the thermal management device being in communication with an inlet of the compressor 100. The thermal management system further comprises a first heat exchanger 400 and a pump 300, wherein a second inlet 1003 of the thermal management device is communicated with a second outlet 1004 of the thermal management device through the first heat exchanger 400 and the pump 300, or further, a coolant flow channel of the thermal management device 1000, the first heat exchanger 400 and the pump 300 form a coolant system or a part of the coolant system, and coolant of the coolant system flows in the coolant system under the driving of the pump 300. When the thermal management system works, high-temperature and high-pressure refrigerant releases heat in the condenser 200, relatively low-temperature and high-pressure refrigerant enters a refrigerant flow channel of the thermal management device 1000, namely a first flow channel of the first heat exchange portion 1100, then enters a cavity of the tube body 1500, the refrigerant enters the valve cavity 1330 after being throttled and depressurized through the valve port 1351, then enters the first hole channel 1240, namely a third flow channel, the refrigerant absorbs heat of cooling liquid in the third flow channel, reduces the temperature of the cooling liquid, then enters the sixth flow channel 1230, the refrigerant in the third flow channel enters the second flow channel through the second through hole 1420 of the connecting plate body 1400, and then is discharged out of the thermal management device 1000 through the first outlet 1002. The refrigerant in the second flow channel can exchange heat with the refrigeration in the first flow channel in the first heat exchange portion 1100, so that the temperature of the refrigerant in the first flow channel is further reduced, the temperature of the refrigeration in the second flow channel is increased, and the reduction of liquid impact of the compressor is facilitated. The temperature of the coolant in the coolant flow path is reduced and then enters the first heat exchanger 400 for reducing the temperature of the battery or other equipment. The heat management device 1000 comprises two heat exchange parts, the two heat exchange parts are fixed through a connecting plate body 1400, a first heat exchange part 1100 is used for refrigerant-refrigerant heat exchange, a second heat exchange part 1200 is used for refrigerant-cooling liquid heat exchange, the refrigerant of the first heat exchange part 1100 is communicated with a throttling unit 1300 through a pipe body 1500, the pipe body 1500 is arranged in a heat exchange core body, the throttling unit 1300 is fixed with a second plate body of the second heat exchange part 1200, the throttled refrigerant exchanges heat with the cooling liquid at the second heat exchange part, the temperature of the cooling liquid is reduced, and the length of the heat management device in the stacking direction of the plates is relatively reduced after the pipe body 1500 is arranged in the second heat exchange part 1200. The pipe body used for communicating the first heat exchange part 1100 with the throttling unit 1300 is internally provided with the heat exchange core body, so that the size of the heat management device 1000 can be further reduced, the damage to the pipe body from the outside can be effectively reduced, and the service life of the heat management device can be prolonged.

Referring to fig. 2 and 12, fig. 2 illustrates another embodiment of a thermal management system. In contrast to the embodiment of fig. 1, in this embodiment, the thermal management device further comprises a third outlet 1005 and a third inlet 1006, wherein the third outlet 1005 communicates with the second port 1120. That is, the refrigerant of the second port may enter the throttling unit 1300 through the pipe body 1500, or may be discharged from the third outlet 1005, and the third inlet 1006 communicates with the third port 1130, that is, the refrigerant flowing into the third port has both the refrigerant flowing from the second heat exchanging portion and the refrigerant flowing from the third inlet 1006. Compared with the thermal management system illustrated in fig. 1, the refrigerant in the first flow channel of the thermal management device 1000 may enter the throttling unit 1300 through the pipe body 1500, or enter the throttling element 500 through the third outlet 1005, the throttling element 500 enters the second heat exchanger 600 to absorb external heat after being throttled, and then the refrigerant enters the first heat exchanging portion 1100 of the thermal management device through the third inlet 1006, and finally is discharged through the first outlet 1002 and enters the compressor 100. The thermal management device 1000 adds an inlet and an outlet to the first heat exchanging portion 1100, so that the second heat exchanger 600 can be connected to the thermal management system as an additional evaporator, and the integration level of the thermal management device is higher.

Referring to fig. 13, fig. 13 illustrates a structure in which the connection portion and the tube are integrated. The cavity formed by the connecting portion accommodates at least a portion of the valve port portion 1350, and a sidewall of the valve port portion 1350 is hermetically disposed with a wall of the first accommodating portion. Thus, the valve port communicates with the lumen of the body. Because the connecting part 1340 is not arranged, the throttled refrigerant directly enters the first hole channel after entering the valve cavity, so that not only are parts reduced, but also the installation steps are reduced.

The valve port 1350 shown in fig. 13 is located in the first through hole 1311 of the first valve body, and the valve port 1350 and the connecting body may be located in the first aperture 1240 after being fixed, so that the length of the first valve body can be reduced along the radial direction of the first aperture 1240, and the volume of the thermal management device is relatively small.

Referring to fig. 14-16, the first plate of the second heat exchanging part 1200 includes a first aperture 1204 and at least one second aperture 1205, the wall forming the first aperture 1204 includes a first flange 1290, the first flange 1290 is folded from the main body of the first plate toward the throttling unit 1300, a plurality of first plate stacks are formed, the first flange 1290 is inserted into the first flange on the upper side adjacent to the first flange 1290, and is sealed between two adjacent flanges, so that the plurality of first flange stacks can form the pipe body 1500, the inner wall of the first flange 1290 of the plurality of plates forms the wall of the fourth flow channel, the first flange 1290 adjacent to the valve port 1350 is partially located in the first receiving cavity and is sealed between the wall of the first receiving part 1341, so that the fourth flow channel is communicated with the valve port 1351. Radially of the first aperture 1240, four second apertures 1205 are distributed outside the first aperture 1204, and the second apertures 1205 form the first aperture 1240. In other embodiments, at least one second aperture is included in each plate. The opening of the first valve body 1310 faces the first bore 1240, enabling communication between the valve chamber 1330 and the first bore 1240. In other embodiments, the connecting portion 1340 can be inserted into the inner wall of the first flange 1290 and sealed. It will be appreciated that the plate closest to the first heat exchange portion comprises only the first portholes, not the second portholes, instead of the second portholes being the first separator 1280.

In another specific embodiment, referring to fig. 17, the heat exchanging core only includes the second heat exchanging portion 1200, that is, the plate of the second heat exchanging portion is located between the first plate body 1210 and the second plate body 1140, and the second heat exchanging portion has a plate contacting with the first plate body, and then the first through hole and the second through hole are formed in the first plate body, wherein the first through hole forms a first inlet 1003 in the bottom wall of the first plate body, the first inlet is directly communicated with the tube body cavity, the second through hole forms a first outlet 1004 in the bottom wall of the first plate body, and the first outlet is directly communicated with the tube body cavity.

It should be noted that: although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified or substituted equally by those skilled in the art, and any modifications and improvements made thereto without departing from the spirit and scope of the present invention should be considered as within the claims of the present invention.

Claims (10)

1. A heat management device comprises a connecting body, a throttling unit and a heat exchange core body, wherein the heat exchange core body comprises a plurality of stacked plates, a first plate body and a second plate body, and the plates are positioned between the first plate body and the second plate body along the stacking direction of the plates; the heat exchange core body is also provided with a first pore channel;

the throttling unit comprises a first valve body and a valve port part, the throttling unit is provided with a first channel and a second channel, the valve port part is provided with a valve port, and the valve port can be communicated with the first channel and the second channel; the first valve body is fixed with the second plate body and comprises a first through hole, and the bottom wall of the first valve body is provided with an opening facing the first pore passage;

the connector includes body and connecting portion, at least part the body is located first pore, the body chamber with the second passageway intercommunication, connecting portion have the intercommunication chamber and hold at least part the first chamber that holds of valve opening portion, the intercommunication chamber intercommunication first passageway with first pore, connecting portion still include the fixed part, the fixed part with the wall of first through-hole is fixed to be set up.

2. The thermal management device according to claim 1, wherein the throttle unit further includes a support ring that is located at the first through-hole, the first through-hole includes a first step surface, and the fixing portion is in contact with the first step surface and a first end portion of the support ring, respectively.

3. The thermal management device according to claim 2, wherein the outer wall of the support ring is tightly fitted to the inner wall of the first through-hole so that the fixing portion is positioned on the first step surface, or the outer wall of the support ring is screwed to the inner wall of the first through-hole so that the fixing portion is positioned on the first step surface.

4. The thermal management device according to any one of claims 1 to 3, wherein the tube body is provided separately from the connecting portion, the connecting portion includes a tube body engaging portion and a first receiving portion, the first receiving portion forms the first receiving chamber or a part of the first receiving chamber, the tube body engaging portion is fixed to the first end portion of the tube body in a sealing manner, and the tube body engaging portion is closer to the first plate body than the first receiving portion in an axial direction of the first hole.

5. The thermal management device according to claim 4, wherein the tube body fitting portion includes a constricted section and a small diameter section, the constricted section being closer to the first receiving portion than the small diameter section in an axial direction of the first port, the constricted section having a radial dimension larger than a radial dimension of the small diameter section;

the first end of the tube body includes a flared section and a straight section, the small diameter section is mated with the straight section, and the flared section is mated with the closed section.

6. The thermal management device according to claim 5, wherein the tube body engaging portion includes a second receiving cavity, an outer wall of the flared section is sealingly fixed to an inner wall of the flared section, an outer wall of the straight section is sealingly fixed to an inner wall of the small-diameter section, and a gap is formed between the first end portion of the tube body and the valve port portion in an axial direction of the first duct.

7. The thermal management device according to claim 5 or 6, wherein the throttling unit comprises a guide portion which is provided separately from the valve port portion, the wall of the first passage comprises an upper wall of the valve port portion and a lower wall of the guide portion, and a welding seal is formed between a side wall of the valve port portion and a wall of the first accommodating portion;

or, the throttling unit comprises a guide part, the guide part and the valve opening part are integrally arranged, the first channel is formed on the guide part, and a sealing ring is arranged between the side wall of the valve opening part and the wall of the first accommodating part.

8. The thermal management device according to any of claims 1-7, wherein said heat exchanging core comprises a first through hole, said first valve body is located at one end of said first port, said first through hole is located at the opposite end of said first port, said second end of said tube body is sealingly connected to said first through hole, and the lumen of said second through hole is in communication with said lumen of said tube body;

the heat exchange core body comprises a first partition plate, the first partition plate and one plate of the second heat exchange portion are of an integral structure, the first partition plate forms a bottom wall of the first hole along the axial direction of the first hole, the first partition plate is provided with an opening for accommodating the pipe body, and a wall forming the opening of the first partition plate and a wall of the pipe body are arranged in a sealing mode.

9. The thermal management device according to claim 8, wherein said heat exchange core further comprises at least one second partition, said second partition being of unitary construction with one of said plates of said heat exchange core, said second partition being closer to said first valve body than said first partition in the axial direction of said first porthole, said second partition having an opening for receiving said tube, and a seal being provided between a wall defining said opening of said second partition and a wall of said tube.

10. The thermal management device according to claim 9, wherein the heat exchange core includes a connection plate body, a first heat exchange portion, and a second heat exchange portion, the connection plate body is located between the first heat exchange portion and the second heat exchange portion, the connection plate body is fixed to the first heat exchange portion and the second heat exchange portion, and the first through hole is formed in the connection plate body; the heat management device comprises a refrigerant flow channel and a cooling liquid flow channel, wherein the cooling liquid flow channel is formed in the second heat exchanging part, the refrigerant flow channel comprises a first flow channel, a second flow channel and a third flow channel, the first flow channel and the second flow channel are formed in the first heat exchanging part, the third flow channel is formed in the second heat exchanging part, the refrigerant in the first flow channel and the refrigerant in the second flow channel can exchange heat in the first heat exchanging part, and the refrigerant in the third flow channel and the cooling liquid in the cooling liquid flow channel can exchange heat in the second heat exchanging part; the first heat exchange portion comprises a first wall, the second heat exchange portion comprises a second wall, the first wall and the second wall are oppositely arranged, the first wall is formed with a first opening which is communicated with the second flow channel, the second wall is formed with a second opening which is communicated with the third flow channel, the first opening and the second opening are oppositely or staggeredly arranged, and the first opening is communicated with the second opening;

the third flow channel comprises the first pore passage, the first flow channel comprises a second pore passage, the first wall is provided with a first communication port, at least part of the first communication port is arranged opposite to the first through hole and the second pore passage, and the first through hole is communicated with the second pore passage.

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