CN114754171A - Multiport valve and thermal management system with same - Google Patents
Multiport valve and thermal management system with same Download PDFInfo
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- CN114754171A CN114754171A CN202110034526.1A CN202110034526A CN114754171A CN 114754171 A CN114754171 A CN 114754171A CN 202110034526 A CN202110034526 A CN 202110034526A CN 114754171 A CN114754171 A CN 114754171A
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 230000000149 penetrating effect Effects 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 description 25
- 239000002826 coolant Substances 0.000 description 16
- 230000000694 effects Effects 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
A multi-port valve comprises a valve shell and a valve core, wherein a connecting area is arranged on the peripheral wall of the valve shell, and a plurality of outer valve ports penetrating through the peripheral wall of the valve shell are arranged in the connecting area; the valve core is provided with at least two sections which are distributed along the circumferential direction; a plurality of inner valve ports are arranged on each section, the inner valve ports are communicated in pairs, and the position relationship between the inner valve ports communicated in pairs in one of the at least two sections is not completely the same as that of other sections; the valve core is rotatably accommodated in the valve shell, and selectively aligns one section of the valve core with the connecting area of the valve shell according to the rotation to different positions, so that a plurality of inner valve ports in the selected section are communicated with a plurality of outer valve ports of the valve shell in a one-to-one alignment mode.
Description
Technical Field
The invention relates to the technical field of valves, in particular to a multi-port valve and a thermal management system with the same.
Background
Valves are control components in fluid delivery systems that can be used to control the flow of fluids, etc. For example, in a thermal management system of a new energy vehicle, a valve is generally required to control the flow of coolant. A common automotive thermal management system includes a plurality of cooling circuits, such as a battery cooling circuit and an electric drive cooling circuit, and a plurality of heat exchangers, such as a radiator and a cooler. In practice, thermal management systems for automobiles often require multiple cooling circuits and multiple heat exchangers to be integrated together to achieve different operating modes. Existing automotive thermal management systems often use multiple valves for coolant to transfer coolant between multiple cooling circuits and/or multiple heat exchangers to achieve different operating modes. Such automotive thermal management systems are complex and costly.
Disclosure of Invention
In view of the above, the present invention aims to provide a multi-port valve which can solve the above problems or at least alleviate the above problems to some extent, and a thermal management system having the multi-port valve.
Therefore, the invention provides a multi-port valve, which comprises a valve shell and a valve core, wherein a connecting area is arranged on the peripheral wall of the valve shell, and a plurality of outer valve ports penetrating through the peripheral wall of the valve shell are arranged in the connecting area; the valve core is provided with at least two sections which are distributed along the circumferential direction; each section is provided with a plurality of inner valve ports which are communicated in pairs, and the position relationship between the inner valve ports communicated in pairs in one of the at least two sections is not completely the same as that between the inner valve ports communicated in pairs in other sections; the valve core is rotatably accommodated in the valve shell, and selectively aligns one of the sections of the valve core with the connection area of the valve shell according to the rotation to different positions, so that a plurality of inner valve ports in the selected section are communicated with a plurality of outer valve ports of the valve shell in a one-to-one alignment manner.
In some embodiments, the valve housing is provided with a first group of outer ports and a second group of outer ports arranged along the circumferential direction, the first group of outer ports comprises a first outer port, a second outer port, a third outer port and a fourth outer port arranged along the axial direction, the second group of outer ports comprises a fifth outer port, a sixth outer port, a seventh outer port and an eighth outer port arranged along the axial direction, each of the sections of the valve core is provided with a first group of inner ports and a second group of inner ports arranged along the circumferential direction, the first group of inner ports comprises a first inner port, a second inner port, a third inner port and a fourth inner port arranged along the axial direction, and the second group of inner ports comprises a fifth inner port, a sixth inner port, a seventh inner port and an eighth inner port arranged along the axial direction.
In some embodiments, the valve core is provided with six sections distributed along the circumferential direction, and the connection relationship between at least two groups of communicated inner valve ports between every two sections of the six sections is different.
In some embodiments, the six segments are uniformly arranged along the circumferential direction of the valve core, and the central angle of each segment is 60 °.
In some embodiments, the at least two segments are selected from two or more segments in the group of: a first section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the sixth internal valve port, the third internal valve port is communicated with the fourth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port; a second section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the sixth internal valve port, the third internal valve port is communicated with the seventh internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port; a third section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the third internal valve port, the fourth internal valve port is communicated with the sixth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port; a fourth section: the first internal valve port is communicated with the fourth internal valve port, the second internal valve port is communicated with the third internal valve port, the fifth internal valve port is communicated with the sixth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port; a fifth section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the third internal valve port, the sixth internal valve port is communicated with the seventh internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port; and a sixth section: the first internal valve port is communicated with the seventh internal valve port, the second internal valve port is communicated with the third internal valve port, the fifth internal valve port is communicated with the sixth internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port.
In some embodiments, the valve element includes a main body portion and a driving shaft penetrating through the main body portion, the internal valve ports are formed in the main body portion, and the driving shaft is configured to drive the main body portion to rotate relative to the valve housing.
In some embodiments, the peripheral wall of the body portion comprises a first portion, a second portion, and a third portion arranged in axial sequence, the peripheral wall of the body portion being shaped to be configured as one of the following: the first portion, the second portion, and the third portion are located on a same radial outer periphery; the second portion protrudes in a radial direction from the first portion and the third portion; and the first portion and the third portion protrude from the second portion in a radial direction.
In some embodiments, one side of at least one of the first portion, the second portion, and the third portion has a linear or arc-shaped axial cross-section.
In another aspect, the present invention further provides a thermal management system, including the multi-port valve described above.
Different sections of the multi-port valve of the invention can be communicated with different outer valve ports when being rotated to be aligned with a plurality of outer valve ports. Thus, the multi-port valve of the present invention provides at least two different fluid flow paths as compared to the prior art.
Drawings
Fig. 1 is a perspective view of a multi-port valve according to a first embodiment of the present invention.
Fig. 2 is an exploded view of the multiport valve shown in fig. 1.
Fig. 3 is a perspective view of a valve cartridge of the multi-port valve shown in fig. 1.
Fig. 4A is a front view of the valve cartridge of fig. 3, showing the first section intact.
FIG. 4B is a schematic view of a thermal management system for a vehicle according to an embodiment of the present invention, wherein a plurality of inner ports and a plurality of outer ports of the first segment of the valve core are aligned one by one.
Fig. 5A is a front view of the valve cartridge of fig. 3, showing the second section intact.
FIG. 5B is a schematic view of a thermal management system for a vehicle according to an embodiment of the present invention, wherein the plurality of inner ports and the plurality of outer ports of the second segment of the valve core are aligned one by one.
Fig. 6A is a front view of the valve cartridge of fig. 3, showing a third, complete section.
FIG. 6B is a schematic view of a thermal management system for a vehicle according to an embodiment of the present invention, wherein a plurality of inner ports and a plurality of outer ports of a third segment of a valve core are aligned one by one.
Fig. 7A is a front view of the valve cartridge of fig. 3, showing a fourth, complete segment.
FIG. 7B is a schematic view of an automotive thermal management system in accordance with an embodiment of the present invention, wherein the inner ports and the outer ports of the fourth section of the valve cartridge are aligned one-to-one.
Fig. 8A is a front view of the valve cartridge of fig. 3, showing a fifth, complete segment.
FIG. 8B is a schematic view of an automotive thermal management system in accordance with an embodiment of the present invention, wherein the inner ports of the fifth section of the valve cartridge are aligned with the outer ports one-to-one.
Fig. 9A is a front view of the valve cartridge of fig. 3, showing a sixth section in its entirety.
FIG. 9B is a schematic view of an automotive thermal management system in accordance with an embodiment of the present invention, wherein the plurality of inner ports and the plurality of outer ports of the sixth section of the valve cartridge are aligned one-to-one, respectively.
FIG. 10 is a perspective view of a valve spool of a multi-port valve according to a second embodiment of the present invention; FIG. 10A is a front view of the valve cartridge of FIG. 10 showing a first segment intact; FIG. 10B is a front view of the valve cartridge of FIG. 10 showing a second section in its entirety; FIG. 10C is a front view of the valve cartridge of FIG. 10 showing a third section in its entirety; FIG. 10D is a front view of the valve cartridge of FIG. 10 showing a fourth section in its entirety; FIG. 10E is a front view of the valve cartridge of FIG. 10 showing a fifth, complete section; fig. 10F is a front view of the valve cartridge of fig. 10 showing the sixth section in its entirety.
FIG. 11 is a perspective view of a valve spool of a multi-port valve according to a third embodiment of the present invention; FIG. 11A is a front view of the valve cartridge of FIG. 11 showing a first segment intact; FIG. 11B is a front view of the valve cartridge of FIG. 11 showing a second section in its entirety; FIG. 11C is a front view of the valve cartridge of FIG. 11 showing a third section in its entirety; FIG. 11D is a front view of the valve cartridge of FIG. 11 showing a fourth section in its entirety; FIG. 11E is a front view of the valve cartridge of FIG. 11 showing a fifth, complete segment; FIG. 11F is a front view of the valve cartridge of FIG. 11 showing the sixth section in its entirety.
FIG. 12 is a perspective view of a spool of a multi-port valve of a fourth embodiment of the present invention; FIG. 12A is a front view of the valve cartridge of FIG. 12, showing the first section intact; FIG. 12B is a front view of the valve cartridge of FIG. 12, showing the second section intact; FIG. 12C is a front view of the valve cartridge of FIG. 12 showing a third, complete section; FIG. 12D is a front view of the valve cartridge of FIG. 12 showing a fourth, complete segment; FIG. 12E is a front view of the valve cartridge of FIG. 12 showing a fifth, full segment; fig. 12F is a front view of the valve cartridge of fig. 12 showing the sixth section in its entirety.
FIG. 13 is a perspective view of a valve spool of a multi-port valve according to a fifth embodiment of the present invention; FIG. 13A is a front view of the valve cartridge of FIG. 13, showing a first segment in its entirety; FIG. 13B is a front view of the valve cartridge of FIG. 13 showing a second section in its entirety; FIG. 13C is a front view of the valve cartridge of FIG. 13 showing a third section in its entirety; FIG. 13D is a front view of the valve cartridge of FIG. 13 showing a fourth segment in its entirety; FIG. 13E is a front view of the valve cartridge of FIG. 13 showing a fifth, complete segment; fig. 13F is a front view of the valve cartridge of fig. 13 showing the sixth section in its entirety.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, so that the technical solutions and advantages thereof will be more clearly understood. It is to be understood that the drawings are provided for purposes of illustration and description only and are not intended as a definition of the limits of the invention, but are drawn to scale.
Referring to fig. 1 and 2, a multi-port valve 300 according to a first embodiment of the present invention includes a valve housing 10 and a valve spool 20 rotatably received in the valve housing 10. A connection area 111 is provided on the peripheral wall of the valve housing 10, and a plurality of outer valve ports 100 penetrating through the peripheral wall of the valve housing 10 are provided in the connection area 111. The valve element 20 is provided with at least two sections 200 distributed in the circumferential direction. A plurality of internal valve ports 210 are provided in each segment 200. The internal valve ports 210 are communicated in pairs, and the position relationship between the internal valve ports 210 communicated in pairs in one section 200 of the at least two sections 200 is not completely the same as the position relationship between the internal valve ports 210 communicated in pairs in other sections 200. The valve core 20 is rotatably received in the valve housing 10, and selectively aligns one of the sections 200 of the valve core 20 with the connection region 111 of the valve housing 10 according to the rotation to different positions, so that the plurality of inner ports 210 in the selected section 200 are in one-to-one aligned communication with the plurality of outer ports 100 of the valve housing 10.
In the multi-port valve of the present embodiment, the plurality of inner ports 210 of each segment 200 can be respectively communicated with the plurality of outer ports 100 one by one, and the plurality of inner ports 210 are communicated two by two. Therefore, fluid can flow in from one outer port 100, enter one inner port 210 communicated with the outer port 100, flow to another inner port 210 communicated with the inner port 210, and finally flow out from another outer port 100 communicated with the another inner port 210.
By rotating the valve core 20, the plurality of inner ports 210 of different sections 200 can be communicated with the plurality of outer ports 100 one by one under different conditions. Specifically, when the valve core 20 is rotated to a specific angle, the plurality of inner ports 210 of one segment 200 communicate with the plurality of outer ports 100 one by one, respectively; when the valve core 20 is rotated to another specific angle, the inner ports 210 of the other segment 200 are respectively communicated with the outer ports 100 one by one.
Further, the positional relationship between the inner valve ports 210 that are two-by-two communicated in one section 200 of at least two sections 200 is not identical to the positional relationship between the inner valve ports 210 that are two-by-two communicated in the other sections 200. Therefore, when different segments 200 are rotated to align with a plurality of external ports 100, different external ports 100 can be connected. Thus, the multi-port valve of the present embodiment provides at least two different fluid flow paths compared to the prior art.
Specifically, in this embodiment, the valve housing 10 includes a hollow supporting seat 11 having an open end and a closed end, and a cover plate 12 sealing the open end of the supporting seat 11. The support seat 11 has a receiving cavity 13 at the center thereof, which is communicated with the opening thereof, for receiving the valve core 20. It will be appreciated that in other embodiments, the valve housing may be formed as a single piece in an over-molded manner. In this embodiment, the supporting seat 11 includes a first body portion 110 for forming the receiving cavity 13, and the connecting portion 111 protruding from the outer peripheral wall of the first body portion 110. The exterior valve port 100 is formed in the connection region 111 and penetrates a sidewall of the first body 110.
The valve core 20 includes a second main body 220 and a driving shaft 221 inserted into the second main body 220. The plurality of interior valve ports 210 are formed in the second body portion 220. In this embodiment, the second body portion 220 has a cylindrical shape, and one end thereof is open and the other end thereof is closed. In other words, in the present embodiment, the respective portions of the outer peripheral wall of the second body portion 220 in the axial direction are located on the same radial outer periphery. Accordingly, the first body portion 110 is cylindrical. The driving shaft 221 is used for driving the second main body part 220 to rotate relative to the valve housing 10. In this embodiment, one end of the driving shaft 221 penetrates through the second body 220 to the bottom wall rotatably supported on the first body 110, and the other end penetrates through the cover 12 and protrudes out of the cover 12, so as to connect to an external driving mechanism, so that the driving shaft 221 drives the second body 220 to rotate relative to the valve housing 10.
Referring to fig. 2 and 3, in this embodiment, the valve housing 10 is provided with a first set of external ports 14 and a second set of external ports 15 arranged along the circumferential direction. The first group of outer ports 14 includes a first outer port 1, a second outer port 2, a third outer port 3, and a fourth outer port 4, which are arranged in the axial direction. Preferably, the first outer port 1, the second outer port 2, the third outer port 3, and the fourth outer port 4 are arranged at equal intervals along the axial direction. The second group of external valve ports 15 includes a fifth external valve port 5, a sixth external valve port 6, a seventh external valve port 7, and an eighth external valve port 8, which are arranged in the axial direction. Preferably, the fifth external valve port 5, the sixth external valve port 6, the seventh external valve port 7, and the eighth external valve port 8 are arranged at equal intervals along the axial direction. Preferably, the first outer port 1 and the fifth outer port 5 are located on the same horizontal plane. The second outer port 2 and the sixth outer port 6 are located on the same horizontal plane. The third external port 3 and the seventh external port 7 are located on the same horizontal plane. The fourth outer port 4 and the eighth outer port 8 are located on the same horizontal plane.
Each section 200 of the valve core 20 is provided with a first group of inner ports 207 and a second group of inner ports 208 which are arranged along the circumferential direction. The first group of internal ports 207 includes a first internal port 21, a second internal port 22, a third internal port 23, and a fourth internal port 24, which are arranged in the axial direction. Preferably, the first internal valve port 21, the second internal valve port 22, the third internal valve port 23 and the fourth internal valve port 24 are arranged at equal intervals along the axial direction. The first internal port 21, the second internal port 22, the third internal port 23, and the fourth internal port 24 may be aligned with the first external port 1, the second external port 2, the third external port 3, and the fourth external port 4, respectively. The second group of internal ports 208 includes a fifth internal port 25, a sixth internal port 26, a seventh internal port 27, and an eighth internal port 28, which are arranged in the axial direction. Preferably, the fifth internal valve port 25, the sixth internal valve port 26, the seventh internal valve port 27 and the eighth internal valve port 28 are arranged at equal intervals along the axial direction. The fifth internal port 25, the sixth internal port 26, the seventh internal port 27, and the eighth internal port 28 may be aligned with the fifth external port 5, the sixth external port 6, the seventh external port 7, and the eighth external port 8, respectively.
Preferably, six segments 200 are provided on the valve element 20, distributed along the circumferential direction. At least two sets of communicating internal ports 210 are different between each two of the six sections 200. More preferably, the six sections 200 are uniformly arranged along the circumferential direction of the valve core 20, and the central angle of each section 200 is 60 °.
Referring to fig. 4A and 4B, in the first section 201 of the valve spool 20 in the present embodiment, the first port 21 and the fifth port 25 communicate with each other, the second port 22 and the sixth port 26 communicate with each other, the third port 23 and the fourth port 24 communicate with each other, and the seventh port 27 and the eighth port 28 communicate with each other.
Referring to fig. 4B, an automotive thermal management system 400 in accordance with an embodiment of the present invention includes the multiport valve 300, a cooler connecting leg 410 in communication with each of the outer ports of the multiport valve 300, a first leg 420, an electric drive cooling leg 430, a second leg 440, a third leg 450, a battery cooling leg 460, a fourth leg 470, and a radiator connecting leg 480. The cooler 411 is connected to the cooler connecting branch 410, a first end of the cooler connecting branch 410 is communicated with the first external valve port 1, a first end of the first branch 420 is communicated with the second external valve port 2, and a second end of the cooler connecting branch 410 is interconnected with a second end of the first branch 420. An electric drive 431 and a first pump 432 for driving the flow of coolant are connected to the electric drive cooling branch 430, a first end of the electric drive cooling branch 430 is communicated with the third external valve port 3, a first end of the second branch 440 is communicated with the fourth external valve port 4, and a second end of the electric drive cooling branch 430 is interconnected with a second end of the second branch 440. The electric drive 431 generally includes a traction motor and a power control system. The first end of the third branch 450 is communicated with the fifth external valve port 5, the battery 461 and the second pump 462 for driving the coolant to flow are connected to the battery cooling branch 460, the first end of the battery cooling branch 460 is communicated with the sixth external valve port 6, and the second end of the third branch 450 is interconnected with the second end of the battery cooling branch 460. A first end of the fourth branch 470 is communicated with the seventh external valve port 7, a first end of the radiator connecting branch 480 is communicated with the eighth external valve port 8, a radiator 481 is connected to the radiator connecting branch 480, and a second end of the fourth branch 470 is interconnected with a second end of the radiator connecting branch 480.
When the valve core 20 rotates to align the inner ports of the first section 201 with the outer ports of the valve housing 10, the first outer port 1 and the fifth outer port 5 of the valve housing 10 are communicated through the first inner port 21 and the fifth inner port 25, the second outer port 2 and the sixth outer port 6 are communicated through the second inner port 22 and the sixth inner port 26, the cooler connecting branch 410, the first branch 420, the third branch 450 and the battery cooling branch 460 are connected in series to form a loop, and under the action of the second pump 462, the coolant flows through the cooler 411 to exchange heat and cool the battery 461. The third external valve port 3 and the fourth external valve port 4 are communicated through the communicated third internal valve port 23 and the fourth internal valve port 24, the electric drive device cooling branch 430 and the second branch 440 are connected in series to form a loop, and under the action of the first pump 432, the coolant flows through the electric drive device 431 to perform internal circulation, that is, heat exchange with a radiator or a cooler is not performed. Here, the coolant may store heat from the electric drive 431. The seventh external port 7 and the eighth external port 8 are communicated through the communicated seventh internal port 27 and the eighth internal port 28, and the fourth branch 470 and the radiator connecting branch 480 are connected in series to form a loop.
Referring to fig. 5A and 5B, in the second section 202 of the valve spool 20 in the present embodiment, the first port 21 and the fifth port 25 communicate with each other, the second port 22 and the sixth port 26 communicate with each other, the third port 23 and the seventh port 27 communicate with each other, and the fourth port 24 and the eighth port 28 communicate with each other. When the valve core 20 rotates to align the inner ports of the second section 202 with the outer ports of the valve housing 10, the first outer port 1 and the fifth outer port 5 of the valve housing 10 are communicated through the first inner port 21 and the fifth inner port 25, the second outer port 2 and the sixth outer port 6 are communicated through the second inner port 22 and the sixth inner port 26, the cooler connecting branch 410, the first branch 420, the third branch 450 and the battery cooling branch 460 are connected in series to form a loop, and under the action of the second pump 462, the coolant flows through the cooler 411 to exchange heat and cool the battery 461. The third external port 3 and the seventh external port 7 of the valve housing 10 are communicated through the third internal port 23 and the seventh internal port 27, the fourth external port 4 and the eighth external port 8 are communicated through the fourth internal port 24 and the eighth internal port 28, which are communicated with each other, the electric drive cooling branch 430, the second branch 440, the fourth branch 470, and the radiator connecting branch 480 are connected in series to form a loop, and under the action of the first pump 432, the coolant flows through the radiator 481 to exchange heat, and cools the electric drive 431.
Referring to fig. 6A and 6B, in the third section 203 of the valve spool 20 in the present embodiment, the first port 21 and the fifth port 25 communicate with each other, the second port 22 and the third port 23 communicate with each other, the sixth port 26 and the fourth port 24 communicate with each other, and the seventh port 27 and the eighth port 28 communicate with each other. When the valve core 20 rotates to align the inner ports of the third section 203 with the outer ports of the valve housing 10, the first outer port 1 and the fifth outer port 5 of the valve housing 10 are communicated through the communicated first inner port 21 and the fifth inner port 25, the second outer port 2 and the third outer port 3 are communicated through the communicated second inner port 22 and the third inner port 23, the fourth outer port 4 and the sixth outer port 6 are communicated through the communicated fourth inner port 24 and the sixth inner port 26, the cooler connecting branch 410, the first branch 420, the electric driving device cooling branch 430, the second branch 440, the third branch 450 and the battery cooling branch 460 are connected in series to form a loop, and under the action of the first pump 432 and the second pump 462, the coolant flows through the cooler 411 to exchange heat and cool the electric driving device 431 and the battery 461. The seventh external port 7 and the eighth external port 8 of the valve housing 10 are communicated through the seventh internal port 27 and the eighth internal port 28, and the fourth branch 470 and the radiator connecting branch 480 are connected in series to form a loop.
Referring to fig. 7A and 7B, in a fourth section 204 of the valve spool 20 in the present embodiment, the first port 21 and the fourth port 24 communicate with each other, the second port 22 and the third port 23 communicate with each other, the fifth port 25 and the sixth port 26 communicate with each other, and the seventh port 27 and the eighth port 28 communicate with each other. When the valve core 20 rotates to align the inner ports of the fourth segment 204 with the outer ports of the valve housing 10, the first outer port 1 and the fourth outer port 4 of the valve housing 10 are communicated through the communicated first inner port 21 and the fourth inner port 24, the second outer port 2 and the third outer port 3 are communicated through the communicated second inner port 22 and the third inner port 23, the cooler connecting branch 410, the first branch 420, the electric drive cooling branch 430 and the second branch 440 are connected in series to form a loop, and under the action of the first pump 432, the coolant flows through the cooler 411 to exchange heat and cool the electric drive 431. The fifth external valve port 5 and the sixth external valve port 6 are communicated through the communicated fifth internal valve port 25 and the sixth internal valve port 26, the third branch 450 and the battery cooling branch 460 are connected in series to form a loop, and under the action of the second pump 462, the coolant flows through the battery 461 to perform internal circulation, namely, does not perform heat exchange with the radiator or the cooler. The seventh external port 7 and the eighth external port 8 are communicated through the communicated seventh internal port 27 and the eighth internal port 28, and the fourth branch 470 and the radiator connecting branch 480 are connected in series to form a circuit.
Referring to fig. 8A and 8B, in a fifth section 205 of the valve spool 20 in the present embodiment, the first port 21 and the fifth port 25 communicate with each other, the second port 22 and the third port 23 communicate with each other, the sixth port 26 and the seventh port 27 communicate with each other, and the fourth port 24 and the eighth port 28 communicate with each other. When the valve spool 20 rotates to align the respective inner ports of the fifth section 205 with the respective outer ports of the valve housing 10, the first outer port 1 and the fifth outer port 5 of the valve housing 10 are communicated through the communicated first inner port 21 and the fifth inner port 25, the second outer port 2 and the third outer port 3 are communicated through the communicated second inner port 22 and the third inner port 23, the sixth outer port 6 and the seventh outer port 7 are communicated through the communicated sixth inner port 26 and the seventh inner port 27, the fourth outer port 4 and the eighth outer port 8 are communicated through the communicated fourth inner port 24 and the eighth inner port 28, the cooler connecting branch 410, the first branch 420, the electric driver cooling branch 430, the second branch 440, the third branch 450, the battery cooling branch 460, the fourth branch 470, and the radiator connecting branch 480 are connected in series to form a loop, and under the action of the first pump 432 and the second pump 462, the coolant flows through the cooler 411 and the radiator 481 to exchange heat, and cools the electric drive 431 and the battery 461.
Referring to fig. 9A and 9B, in a sixth section 206 of the valve spool 20 in the present embodiment, the first port 21 and the seventh port 27 communicate with each other, the second port 22 and the third port 23 communicate with each other, the fifth port 25 and the sixth port 26 communicate with each other, and the fourth port 24 and the eighth port 28 communicate with each other. When the valve core 20 rotates to align the inner ports of the sixth section 206 with the outer ports of the valve housing 10, the first outer port 1 and the seventh outer port 7 of the valve housing 10 are communicated through the communicated first inner port 21 and the seventh inner port 27, the second outer port 2 and the third outer port 3 are communicated through the communicated second inner port 22 and the third inner port 23, the fourth outer port 4 and the eighth outer port 8 are communicated through the communicated fourth inner port 24 and the eighth inner port 28, the cooler connecting branch 410, the first branch 420, the electric drive cooling branch 430, the second branch 440, the fourth branch 470, and the radiator connecting branch 480 are connected in series to form a loop, and under the action of the first pump 432, the coolant flows through the cooler 411 and the radiator 481 to exchange heat, and cools the electric drive 431. The fifth external valve port 5 and the sixth external valve port 6 are communicated through the communicated fifth internal valve port 25 and the sixth internal valve port 26, the third branch 450 and the battery cooling branch 460 are connected in series to form a loop, and under the action of the second pump 462, the coolant flows through the battery 461 to perform internal circulation, i.e. does not perform heat exchange with the radiator or the cooler.
It should be noted that the components (electric drive, battery, radiator, cooler, etc.) of the vehicle thermal management system 400 are shown by way of example only and do not limit the thermal management system of the present invention. In other embodiments, the multi-port valve of the present embodiment may also be used in automotive thermal management systems that include other automotive components. Even further, the multi-port valve of the present embodiment may be used in other thermal management systems where heat exchange is required.
Referring to fig. 10 to 10F, the multi-port valve according to the second embodiment of the present invention is similar to the multi-port valve according to the first embodiment of the present invention, and the same parts are not described again, and the multi-port valve according to the second embodiment of the present invention is different from the multi-port valve according to the first embodiment of the present invention mainly in the shape of the valve core. Specifically, the outer circumferential wall of the spool 520 of the multi-port valve according to the second embodiment of the present invention is recessed toward the middle in the axial direction, and specifically, the outer circumferential wall of the spool 520 of the multi-port valve according to the present embodiment includes a first portion 521, a second portion 522, and a third portion 523, which are sequentially arranged in the axial direction, wherein the first portion 521 and the third portion 523 protrude from the second portion 522 in the radial direction. In particular, the axial section of one side of the outer circumferential wall of the spool 520 of the multi-port valve in the present embodiment is continuously arc-shaped. Accordingly, the shape of the valve housing is adapted. By providing the valve core 520 with a curved outer contour and a corresponding valve housing, the cross-sectional area can be increased, thereby reducing the flow pressure loss of the flow channel (the flow channel formed by communicating the outer valve ports and/or the flow channel formed by communicating the inner valve ports), increasing the sealing area, and facilitating the processing of forming a plurality of flow channels.
Referring to fig. 11 to 11F, the multi-port valve according to the third embodiment of the present invention is similar to the multi-port valve according to the first embodiment of the present invention, and the same parts are not described again. Specifically, the outer peripheral wall of the valve core 620 of the multi-port valve according to the third embodiment of the present invention is recessed in the axial middle portion, and specifically, the outer peripheral wall of the valve core 620 of the multi-port valve according to the present embodiment includes a first portion 621, a second portion 622, and a third portion 623 which are sequentially arranged in the axial direction, wherein the first portion 621 and the third portion 623 protrude from the second portion 622 in the radial direction. Specifically, the first portion 621 is large in top and small in bottom, and one side thereof has a linear axial section. The second portion 622 has a cylindrical shape, and one side thereof has a linear axial cross section. The third portion 623 is small in top and large in bottom, and has a linear axial cross section on one side. Accordingly, the shape of the valve housing is also adapted. Further effects provided by the multi-port valve of this embodiment can be referred to the further effects provided by the multi-port valve of the second embodiment, which are not described herein again.
Referring to fig. 12 to 12F, a multi-port valve according to a fourth embodiment of the present invention is similar to the multi-port valve according to the first embodiment of the present invention, and the same parts are not described again, and the multi-port valve according to the fourth embodiment of the present invention is different from the multi-port valve according to the first embodiment of the present invention mainly in the shape of a valve core. Specifically, the peripheral wall of the spool 720 of the multi-port valve of the fourth embodiment of the present invention protrudes toward the middle, and specifically, the peripheral wall of the spool 720 of the multi-port valve of the present embodiment includes a first portion 721, a second portion 722, and a third portion 723, which are arranged in order in the axial direction, wherein the second portion 722 protrudes from the first portion 721 and the third portion 723 in the radial direction. In particular, the axial cross-section of one side of the peripheral wall of the spool 720 of the multi-port valve in this embodiment is a continuous arc. Accordingly, the shape of the valve housing is also adapted. Further effects provided by the multi-port valve of this embodiment can be referred to the further effects provided by the multi-port valve of the second embodiment, which are not described herein again.
Referring to fig. 13 to 13F, a multi-port valve according to a fifth embodiment of the present invention is similar to the multi-port valve according to the first embodiment of the present invention, and the same parts are not repeated. Specifically, the outer circumferential wall of the valve element 820 of the multi-port valve according to the fifth embodiment of the present invention is recessed in the axial middle portion, and specifically, the outer circumferential wall of the valve element 820 of the multi-port valve according to the present embodiment includes a first portion 821, a second portion 822, and a third portion 823 which are arranged in order in the axial direction, wherein the second portion 822 protrudes from the first portion 821 and the third portion 823 in the radial direction. Specifically, the first portion 821 is small in top and large in bottom, and has a linear axial cross section on one side. The second portion 822 has a cylindrical shape, and has a linear axial cross section on one side. The third portion 823 is large in the upper portion and small in the lower portion, and has a linear axial cross section on one side. Accordingly, the shape of the valve housing is adapted. Further effects provided by the multi-port valve of this embodiment can be referred to the further effects provided by the multi-port valve of the second embodiment, which are not described herein again.
The above description is only a preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above listed embodiments, and any simple changes or equivalent substitutions of the technical solutions obvious to those skilled in the art within the technical scope of the present invention are within the protection scope of the present invention.
Claims (9)
1. A multiport valve comprises a valve shell and a valve core, and is characterized in that a connecting area is arranged on the peripheral wall of the valve shell, and a plurality of outer valve ports penetrating through the peripheral wall of the valve shell are arranged in the upper connecting area; the valve core is provided with at least two sections which are distributed along the circumferential direction; each section is provided with a plurality of inner valve ports which are communicated in pairs, and the position relationship between the inner valve ports communicated in pairs in one of the at least two sections is not completely the same as that between the inner valve ports communicated in pairs in other sections; the valve core is rotatably accommodated in the valve shell, and selectively aligns one of the sections of the valve core with the connection area of the valve shell according to the rotation to different positions, so that a plurality of inner valve ports in the selected section are communicated with a plurality of outer valve ports of the valve shell in a one-to-one alignment manner.
2. The multiport valve of claim 1, wherein the valve housing defines a first set of outer ports and a second set of outer ports arranged in a circumferential direction, the first set of outer ports includes first, second, third, and fourth outer ports arranged in an axial direction, the second set of outer ports includes fifth, sixth, seventh, and eighth outer ports arranged in an axial direction, each of the segments of the poppet defines a first set of inner ports and a second set of inner ports arranged in a circumferential direction, the first set of inner ports includes first, second, third, and fourth inner ports arranged in an axial direction, and the second set of inner ports includes fifth, sixth, seventh, and eighth inner ports arranged in an axial direction.
3. The multiport valve according to claim 2, wherein the valve core is provided with six circumferentially distributed segments, and at least two groups of communicated inner ports of each two segments of the six segments are different in connection relation.
4. The multi-port valve of claim 3, wherein the six segments are uniformly arranged along the circumference of the spool, and each segment has a corresponding central angle of 60 °.
5. The multiport valve according to claim 2, wherein said at least two sections are selected from two or more sections of the group:
a first section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the sixth internal valve port, the third internal valve port is communicated with the fourth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port;
a second section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the sixth internal valve port, the third internal valve port is communicated with the seventh internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port;
a third section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the third internal valve port, the fourth internal valve port is communicated with the sixth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port;
a fourth section: the first internal valve port is communicated with the fourth internal valve port, the second internal valve port is communicated with the third internal valve port, the fifth internal valve port is communicated with the sixth internal valve port, and the seventh internal valve port is communicated with the eighth internal valve port;
A fifth section: the first internal valve port is communicated with the fifth internal valve port, the second internal valve port is communicated with the third internal valve port, the sixth internal valve port is communicated with the seventh internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port; and
a sixth section: the first internal valve port is communicated with the seventh internal valve port, the second internal valve port is communicated with the third internal valve port, the fifth internal valve port is communicated with the sixth internal valve port, and the fourth internal valve port is communicated with the eighth internal valve port.
6. The multi-port valve of claim 1, wherein the spool includes a main body portion and a drive shaft extending through the main body portion, the plurality of internal valve ports being formed in the main body portion, the drive shaft being configured to drive the main body portion to rotate relative to the valve housing.
7. The multi-port valve of claim 6, wherein the peripheral wall of the body portion comprises a first portion, a second portion, and a third portion arranged in axial sequence, the peripheral wall of the body portion being shaped to one of the following:
the first portion, the second portion, and the third portion are located on the same radial outer periphery;
The second portion protrudes in a radial direction from the first portion and the third portion; and
the first portion and the third portion protrude from the second portion in a radial direction.
8. The multi-port valve of claim 7, wherein an axial cross-section of one side of at least one of the first, second, and third portions is linear or arcuate.
9. A thermal management system comprising a multi-port valve according to any of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034526.1A CN114754171A (en) | 2021-01-11 | 2021-01-11 | Multiport valve and thermal management system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110034526.1A CN114754171A (en) | 2021-01-11 | 2021-01-11 | Multiport valve and thermal management system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114754171A true CN114754171A (en) | 2022-07-15 |
Family
ID=82325570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110034526.1A Pending CN114754171A (en) | 2021-01-11 | 2021-01-11 | Multiport valve and thermal management system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114754171A (en) |
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2021
- 2021-01-11 CN CN202110034526.1A patent/CN114754171A/en active Pending
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