Multi-way valve and battery thermal management device

Abstract

The utility model provides a multi-way valve and a battery thermal management device. The multi-way valve comprises an actuator used for driving work; the valve cover is arranged below the actuator in a covering manner; the shell is arranged below the valve cover and is in closed connection with the valve cover to form a containing groove; a runner opening is formed in the lower part of the accommodating groove; the valve element is rotationally arranged in the containing groove. The valve element comprises a through flow channel and a gear ring arranged along the periphery, the actuator is meshed with the gear ring to drive the valve element to rotate, and the flow channel and a flow channel opening form a circulation channel. The multi-way valve has the advantages of being small in size, strong in balance and high in reliability, the space layout of the battery heat management device can be compact, the production cost is reduced, and the product reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy heat management field especially a kind of multi-way valve and battery heat management device. BACKGROUND

[0002] The battery heat management system of new energy vehicle is managed to each subsystem by multiple fluid control devices, and with the development of new energy vehicle industry, integrated battery heat management system becomes new trend, and small volume, high integration, strong reliability multi-way valve becomes important element in battery heat management device.In prior art, planar water valve is difficult to solve the impact from fluid flow direction in use process, so there is the problem of pressure imbalance in the upper and lower surfaces of valve core.In battery heat management system, when the flow mode of multi-way valve is switched, the valve core is subjected to greater resistance from fluid, so greater output torque is required, and the equipment performance requirement of battery heat management device is higher.

[0003] Therefore, a multi-way valve is needed, which solves the balance problem caused by fluid pressure from inside the valve body, to reduce the dependence of valve body on other actuators, while reducing the volume of multi-way valve, reducing production cost and improving product reliability. SUMMARY

[0004] The utility model aims at providing a kind of multi-way valve and battery heat management device, solve the pressure balance problem in the valve body caused by liquid flow in existing heat management system.

[0005] According to one aspect of the utility model, a kind of multi-way valve is provided, comprising: for driving work's actuator;Valve cover is covered in the lower of the actuator;Shell and valve core are set to the lower of the valve cover and are closed connection with the valve cover to form accommodating groove;The lower part of the accommodating groove is provided with flow channel mouth;The valve core can be rotatably arranged in the accommodating groove;The valve core includes through-flow channel and is arranged along the gear ring of outer periphery, the actuator is engaged with the gear ring to drive the valve core rotation, and the flow channel and the flow channel mouth form flow-through passage.

[0006] By setting gear ring on the outer periphery of valve core, actuator drives valve core rotation by engaging with gear ring, and then controls fluid to enter and exit from different flow-through passages of multi-way valve.Change gear ring setting position, increase the transmission ratio of gear ring and actuator, and reduce the height of multi-way valve.

[0007] Further, the valve core includes valve disc and rotating shaft;The flow channel is through-flow channel arranged on the valve disc;The rotating shaft is arranged at the center of the valve disc, and is connected with the valve cover and the flow channel mouth;The gear ring is arranged on the outer periphery of the valve disc.

[0008] The flow channel of the valve core is arranged through, which reduces the impact force of fluid on the valve core during use, avoids the valve core from moving during use, realizes the self-balance of pressure in the up and down directions of the valve core, and can improve the service life of the product.

[0009] Further, the housing further comprises a sealing assembly, which comprises a first sealing ring arranged on the lower side of the flow channel opening at the bottom of the housing, a second sealing ring arranged on the lower side of the valve core, and a third sealing ring arranged on the upper side of the valve core; the second sealing ring and the third sealing ring are symmetrically arranged.

[0010] Further, the valve disc comprises a structure groove arranged circumferentially along the side wall, the structure groove is arranged towards the center of the valve disc, and the structure groove is fan-shaped on the plane.

[0011] Further, the valve disc comprises a buffer groove, which is arranged in the vertical direction of the valve disc and is spaced apart from the structure groove.

[0012] Further, one side of the valve core close to the valve cover is an upper end face, and the other side is a lower end face; the buffer groove comprises a first buffer groove and a second buffer groove; the opening direction of the first buffer groove is arranged in the direction of the upper end face or the lower end face; the second buffer groove is arranged at the symmetric position of the upper end face and the lower end face.

[0013] Further, the flow channel comprises a flow blocking part arranged on the lower end face, the flow blocking part is arranged between the flow channels to form a first flow channel gap and a second flow channel gap, and the first flow channel gap and the second flow channel gap are respectively located on both sides of the flow blocking part.

[0014] Preferably, the actuator comprises a transmission assembly, the transmission assembly is engaged with the valve disc; the transmission assembly comprises a first double gear, a second double gear engaged with the first double gear, a third double gear connected with the second double gear, and a micro motor driving the first double gear to rotate; the third double gear is engaged with the gear ring to drive the valve core to rotate.

[0015] Further, the housing comprises a first sealing groove arranged at the lower part of the accommodating groove; the flow channel opening is equally divided to form a sub-flow channel opening, the sub-flow channel openings are combined at the combination center to form a fixed opening for fixing the valve core; the housing comprises a second housing part and a transmission part; the second housing part is arranged above the accommodating groove and is used for connecting the valve cover to seal the housing; the transmission part is used for mounting the third double gear.

[0016] Further, the valve cover comprises a second sealing groove arranged at the lower part of the valve cover for fixing the third sealing ring.

[0017] Further, the second sealing ring comprises a sealing rib connected with the lower end face; and the third sealing ring comprises a sealing rib connected with the upper end face.

[0018] The multi-way valve provided by the utility model changes the transmission mode of the valve core, that is, the torsion spline arranged on the traditional valve core rotating shaft is replaced by the gear ring arranged on the outer periphery of the valve disc, so that the height and volume of the product are reduced, and the production cost is saved.

[0019] The utility model further provides a battery thermal management device, including the multi-way valve like any preceding. Adopt this kind of multi-way valve, can promote the transmission efficiency of thermal management device motor, reduce the dependence on motor in thermal management mode switching process. Because the volume of multi-way valve is reduced, therefore, the space layout in battery thermal management device is more reasonable, management precision is higher, and thermal management efficiency is further promoted. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further explained in detail in combination with the drawings and specific embodiments:

[0021] Figure 1 A multi-way valve schematic view provided for the embodiment.

[0022] Figure 2 A multi-way valve structure schematic provided for the embodiment Figure 1 .

[0023] Figure 3 A multi-way valve valve core structure schematic provided for the embodiment.

[0024] Figure 4 It is the cross section schematic drawing along the direction of valve core AA1.

[0025] Figure 5 A multi-way valve valve cover structure schematic provided for the embodiment.

[0026] Figure 6 A multi-way valve shell structure schematic provided for the embodiment Figure 1 .

[0027] Figure 7 A multi-way valve shell structure schematic provided for the embodiment Figure 2 .

[0028] Figure 8 A multi-way valve second sealing ring schematic provided for the embodiment.

[0029] Figure 9 A multi-way valve structure schematic provided for the embodiment Figure 2 .

[0030] Figure 10 A multi-way valve connection mode diagram provided for an embodiment Figure 1 .

[0031] Figure 11 A multi-way valve connection mode diagram provided for an embodiment Figure 2 .

[0032] Figure 12 A multi-way valve connection mode diagram provided for an embodiment Figure 3 .

[0033] Figure 13 A multi-way valve connection mode diagram provided for an embodiment Figure 4 .

[0034] BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 100 - multi-way valve

[0036] 1 - actuator; 11 - transmission assembly; 111 - first double gear; 112 - second double gear; 113 - third double gear; 12 - micro motor; 2 - valve cover; 21 - second sealing groove; 3 - shell; 31 - accommodating groove; 311 - first sealing groove; 32 - flow passage opening; 321 - sub-flow passage opening; 322 - fixed opening; 33 - second shell part; 34 - transmission part; 4 - valve core; 41 - valve disc; 411 - gear ring; 412 - structure groove; 413 - buffer groove; 413a - first buffer groove; 413b - second buffer groove; 401 - upper end face; 402 - lower end face; 42 - rotating shaft; 414 - flow passage; 4141 - flow blocking part; 414a - first flow passage gap; 414b - second flow passage gap; 5 - sealing assembly; 51 - first sealing ring; 52 - second sealing ring; 53 - third sealing ring; 521 - sealing rib DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0038] For the sake of simplicity of the drawings, only the parts related to the present application are shown in the drawings, which do not represent the actual structure of the product. In addition, in order to make the drawings simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown schematically, or only one of them is marked. In this document, "one" not only means "only one", but also means "more than one" situation.

[0039] It should be further understood that the term "and / or" used in the specification and appended claims of the present application means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0040] In this document, it should be noted that unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the specific embodiments of the present application will be described with reference to the drawings. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor, and other embodiments can also be obtained.

[0043] Referring to Figures 1 to 13The embodiment shown provides a multi-way valve, which realizes battery thermal management by switching the flow mode of the multi-way valve. The multi-way valve in the embodiment includes an actuator 1, a valve cover 2, a housing 3, and a valve core 4 for controlling the flow mode. The valve cover 2 is arranged below the actuator 1, the valve cover 2 is in closed connection with the housing 3 to form a receiving groove 31, the valve core 4 is arranged in the receiving groove 31, and the lower part of the receiving groove 31 is provided with a flow port 32. The valve core 4 is arranged to rotate in the receiving groove 31, a gear ring 411 for transmission is arranged on the outer periphery of the valve core 4, the actuator 1 is in meshing connection with the gear ring 411, and the rotation of the valve core 4 is controlled. The valve core 4 is provided with a flow channel 414, one end of which is connected to a control module of a thermal management device, and the other end is connected to a battery heat exchange part. Specifically, the control module is connected to the actuator 1, and the flow port 32 is connected to the inlet and outlet liquid components of the battery heat exchange part. Since the flow channel 414 is arranged at different positions of the valve core 4, during the rotation of the valve core 4 driven by the actuator 1, the flow channel 414 and the flow port 32 combine to form a fluid flow channel, and the rotation angle of the valve core 4 is different, and the fluid inlet and outlet modes in the flow channel are different. The multi-way valve provided in the embodiment is a six-way valve, that is, it has six flow ports 32, and the embodiment has three different liquid inlet and outlet exchange modes. Referring to Figures 10-12 In the embodiment, during use, the size of the flow channel 414 is set according to the requirements of the thermal management device, so as to switch the angle of the valve core 4 to realize the connection of different flow channels. The flow channel 414 of the valve core 4 is symmetrically arranged, and the flow ports 32 are a port, a port, a port, a port, a port, and a port. In mode one, the a port and the b port are in communication with the flow channel to form a flow channel, and the d port and the e port are in communication with another flow channel. In mode two, the b port and the c port are in communication with the flow channel to form a flow channel, and the e port and the f port are in communication with another flow channel. In mode three, the c port and the d port are in communication with the flow channel to form a flow channel, and the f port and the a port are in communication with another flow channel. The preset mode one is the standard position, and when the valve core 4 rotates by 60 degrees, it is switched to mode two. In order to make the valve core 4 adapt to the use of the battery thermal management device, the rotation of the valve core 4 is an integer multiple of 60 degrees. In the embodiment, the multi-way valve is provided with a gear ring 411 on the outer periphery of the valve core 4, the gear ring 411 is in meshing connection with the actuator 1, the number of gear rings 411 is increased, the rotation speed of the gear ring 411 is reduced, and the transmission ratio is reduced. Therefore, for the multi-way valve in the embodiment, the number of transmission gears and the transmission stages can be reduced.

[0044] The valve core 4 in the embodiment includes a valve disc 41 and a rotating shaft 42, and the flow channel 414 is arranged through the valve disc 41 in the vertical direction of the valve disc 41, so as to reduce the impact force of the fluid on the valve core 4 during use, avoid the impact of the fluid from causing the valve core 4 to move, make the pressure above and below the valve core 4 self-balanced, and improve the service life of the product. The rotating shaft 42 is arranged at the center of the valve disc 41, and the rotating shaft 42 is fixedly connected with the center of the valve cover 2 and the flow channel port 32. Since the multi-way valve in the embodiment is a six-way valve, i.e., has six flow channel ports 32, a fixed port 322 is formed at the center position where the flow channel ports 32 are connected with each other, and the fixed port 322 is used to fix the rotating shaft 42. In the traditional rotating shaft 42, a torsion spline is arranged at the fixed end of the valve cover 2, the torsion spline is connected with the actuator 1 to drive the valve core 4 to rotate, and in the embodiment, the gear ring 411 is arranged at the outer periphery of the valve disc 41 and located at the edge of the valve disc 41. Compared with the arrangement of the torsion spline at the rotating shaft 42, a larger reduction ratio can be achieved. In this case, the number of gears in the actuator 1 is reduced, and the larger reduction ratio can also reduce the demand of the motor output characteristics for the rotation of the valve core 4, so that the volume of the actuator 1 can be reduced.

[0045] The side of the valve core 4 close to the valve cover 2 is the upper end surface 401, the side close to the flow channel port 32 is the lower end surface 402, and the gear ring 411 is arranged at the outer periphery of the upper end surface 401. In order to control the flow rate of the fluid, the flow channel 414 is provided with a flow blocking part 4141 at the lower end surface 402, so as to control the flow rate of the fluid in the flow channel 414. The flow blocking part 4141 is located at the middle position of the flow channel and is arranged in parallel with the lower end surface 402. The flow blocking part 4141 forms a gap with both sides of the flow channel 414, so as to divide the flow channel 414 into a first flow channel gap 414a and a second flow channel gap 414b, so as to slow down the flow rate of the fluid in the flow channel. In addition, in the specific embodiment, the flow blocking part 4141 can also shield the flow channel port 32, as shown in Figure 13 If the flow channel ports 32a and 32c are used, the port 32b can be shielded under the condition of rotating by 60 degrees, so as to avoid the fluid in the flow channel connected with the port 32b from flowing, so as to achieve accurate and efficient heat exchange. It should be noted that the flow channel arranged on the valve core 4 can be a combination of the flow channel 414 with the flow blocking part 4141 and the flow channel 414 without the flow blocking part 4141. The number of the flow channels 414, the area of the flow channels on the valve disc 41 and the arrangement mode of the flow channels are arranged according to the demand of the heat management device. For example, in the embodiment, two flow channels 414 are arranged symmetrically in the diameter direction of the valve disc 41, and the flow channels 414 are arranged through the valve disc 41, and one flow channel 414 is provided with the flow blocking part 4141. In various embodiments, the size, arrangement mode and position of the flow channel 414 are not limited.

[0046] Referring to Figures 3-4The valve disc 41 has a circumferentially arranged structural groove 412 on its side wall. The structural groove 412 is arranged along the center of the valve disc 41 and is fan-shaped in plan view, that is, the structural groove 412 is fan-shaped when viewed from above, to accommodate the area of ​​the valve disc 41. The valve disc 41 also has a buffer groove 413 for buffering fluid. The buffer groove 413 is vertically arranged on the valve core 4 and is spaced apart from the structural groove 412. The purpose of setting the structural groove 412 and the buffer groove 413 is to stabilize the structure of the valve core 4 and to achieve pressure balance between the upper end face 401 and the lower end face 402 of the valve core 4. Specifically, the buffer groove 413 on the valve core 4 includes a first buffer groove 413a and a second buffer groove 413b. The opening direction of the first buffer groove 413a is set along the direction of the upper end face 401 or the lower end face 402, that is, the first buffer groove 413a is set along the height direction of the valve disc 41, and the bottom of the first buffer groove 413a is the upper end face 401 or the lower end face 402. The openings of the second buffer groove 413b are symmetrically arranged on the upper end face 401 and the lower end face 402 of the valve core 4, and the bottom of the second buffer groove 413b is set on the transverse center plane of the valve disc 41. With this arrangement, while maintaining the structural stability of the valve core 4 and the pressure balance of the upper end face 401 and the lower end face 402 of the valve core 4, it is also possible to save valve core 4 manufacturing materials and reduce production costs.

[0047] See Figure 2 , Figure 8 The multi-way valve in this embodiment is further provided with a sealing component 5 to prevent fluid from flowing out. The sealing component 5 is disposed inside the housing 3 and positioned between the flow channel 32, the valve core 4, and the valve cover 2. Specifically, a first sealing ring 51 is provided at the bottom of the flow channel 32 to seal the flow channel 32 and the inlet / outlet liquid assembly; a second sealing ring 52 is provided between the flow channel 32 and the lower end face 402 of the valve core 4, and a third sealing ring 53 is provided between the valve cover 2 and the upper end face 401 of the valve core 4. The second sealing ring 52 at the upper end face 401 and the third sealing ring 53 at the lower end face 402 have the same structure and are symmetrically arranged to seal the flow channel 32 and the flow channel, preventing fluid from flowing in and out between the inlet / outlet liquid assemblies and affecting the control effect of the battery thermal management device. Sealing ribs 521 are provided at the connection between the second sealing ring 52 and the valve core 4, and at the connection between the third sealing ring 53 and the valve core 4. The sealing ribs 521 are arranged along the structure of the second sealing ring 52 and the third sealing ring 53. The second sealing ring 52 and the third sealing ring 53 are symmetrically arranged, that is, the side where the sealing ribs 521 are located is connected to the valve core 4, so that the second sealing ring 52, the third sealing ring 53 and the valve core 4 are sealed.

[0048] The shell 3 comprises a first sealing groove 311 arranged at the lower part of the accommodating groove 31, which is used for arranging the first sealing ring 51, and is also used for connecting the flow channel port 32 with the liquid inlet and outlet assembly of the battery thermal management device. In the embodiment, the flow channel port 32 is equally divided to form a sub-flow channel port 321, and the sub-flow channel ports 321 are combined at the combined center to form a fixed port 322, and the rotating shaft 42 is arranged in the fixed port 322, which is used for fixing the valve core 4, so that when the valve core 4 rotates, the sub-flow channel port 321 corresponds to the flow channel 414, and the exchange flow of the fluid is realized. The shell 3 is provided with a second shell part 33 and a transmission part 34, the second shell part 33 is arranged above the accommodating groove 31 and is connected with the valve cover 2, so as to realize the sealing between the shell 3 and the valve cover 2, and the transmission part 34 is used for connecting the actuator 1 with the valve core 4. The lower part of the valve cover 2 is provided with a second sealing groove 21, and when the valve cover 2 is fixed and sealed with the shell 3, the third sealing ring 53 is embedded in the second sealing groove 21 of the valve cover 2, so that the sealing effect of the multi-way valve in the embodiment is better, and the third sealing ring 53 is not easy to move.

[0049] In the multi-way valve provided in the embodiment, referring to Figure 9 The transmission assembly 11 of the actuator 1 comprises a micro motor 12, a first double gear 111, a second double gear 112 and a third double gear 113. The micro motor 12 rotates to drive the first double gear 111 to rotate, the second double gear 112 meshing with the first double gear 111 rotates synchronously, and then the third double gear 113 rotates following the second double gear 112. One end of the third double gear 113 is arranged in the transmission part 34 of the shell 3 and meshes with the gear ring 411 of the valve core 4, so that when the micro motor 12 rotates, the valve core 4 rotates synchronously. This structure depends less on the performance of the motor.

[0050] By changing the structure of the valve core, the transmission mode between the actuator and the valve core is changed. In the traditional structure, the torsion spline is arranged on the valve core shaft, the actuator drives the torsion spline to rotate, and then drives the valve core to rotate, thereby controlling the fluid inlet and outlet of different flow channels. By using this structure, the size of the actuator can be reduced, the height of the whole multi-way valve can be reduced, and the production cost can be saved. At the same time, the flow channel on the valve core is changed to a through design, which can effectively reduce the impact of the fluid on the valve core and improve the reliability of the product. By using the battery thermal management device provided in the embodiment, the transmission efficiency of the motor can be improved, and the dependence on the motor during the switching process of the thermal management mode can be reduced. At the same time, due to the smaller overall structure of the multi-way valve, the space layout in the battery thermal management device is more reasonable, which can improve the management accuracy and the thermal management efficiency.

[0051] As is apparent to those skilled in the art, various modifications and changes can be made to the above-described exemplary embodiments of the present application without departing from the spirit and scope of the present application. Therefore, it is intended that the present application cover modifications and changes as long as they come within the scope of the appended claims and their equivalents.

Claims

1. A multi-way valve characterized by comprising: include: An actuator, which is used to drive the work; A valve cover, which is disposed below the actuator; A housing is disposed below the valve cover and is closedly connected to the valve cover to form a receiving groove, and a flow channel is provided at the lower part of the receiving groove; The valve core is rotatably disposed in the receiving groove. The valve core includes a through flow channel and a toothed ring disposed along its outer periphery. The actuator meshes with the toothed ring to drive the valve core to rotate. The flow channel and the flow channel opening form a flow passage.

2. A multiple port valve as claimed in claim 1, characterised in that The valve core includes a valve disc and a rotating shaft; the flow channel is disposed through the valve disc; the rotating shaft is disposed at the center of the valve disc and connected to the valve cover and the flow channel opening; the gear ring is disposed on the outer periphery of the valve disc.

3. A multiple port valve as claimed in claim 2, characterised in that, The housing is also provided with a sealing assembly, which includes a first sealing ring disposed on the lower side of the flow channel at the bottom of the housing, a second sealing ring disposed on the lower side of the valve core, and a third sealing ring disposed on the upper side of the valve core; the second sealing ring and the third sealing ring are symmetrically arranged.

4. A multiple port valve as claimed in claim 3, characterised in that The valve disc includes a structural groove arranged circumferentially along the side wall, the structural groove being arranged toward the center of the valve disc, and the structural groove being fan-shaped in the plane.

5. A multiple port valve as claimed in claim 4, characterised in that, The valve disc includes a buffer groove, which is spaced apart from the structural groove in the vertical direction of the valve disc.

6. A multiple port valve as claimed in claim 5, characterised in that, The valve core has an upper end face on the side closest to the valve cover and a lower end face on the other side; the buffer groove includes a first buffer groove and a second buffer groove; the opening direction of the first buffer groove is arranged along the direction of the upper end face or the direction of the lower end face; the second buffer groove is arranged at a symmetrical position on the upper end face and the lower end face.

7. A multiple port valve as claimed in claim 6, characterised in that The flow channel includes a flow-blocking portion disposed on the lower end face. The flow-blocking portion is disposed between the flow channels to form a first flow channel gap and a second flow channel gap. The first flow channel gap and the second flow channel gap are respectively located on both sides of the flow-blocking portion.

8. A multiple port valve as claimed in claim 7, characterised in that, The actuator includes a transmission assembly that meshes with the valve disc; the transmission assembly includes a first double gear, a second double gear that meshes with the first double gear, a third double gear that is connected to the second double gear, and a micro motor that drives the first double gear to rotate; the third double gear meshes with the gear ring and drives the valve core to rotate.

9. A multiple port valve as claimed in claim 8, characterised in that, The housing includes a first sealing groove disposed at the lower part of the receiving groove; the flow channel is divided into sub-flow channels, and the sub-flow channels are combined at the center of the combination to form a fixing port, which is used to fix the valve core; the housing includes a second housing part and a transmission part; the second housing part is disposed above the receiving groove and is used to connect the valve cover to seal the housing; the transmission part is used to install the third double gear.

10. A multiple port valve as claimed in claim 9, characterised in that, The valve cover includes a second sealing groove disposed at the lower part of the valve cover for fixing the third sealing ring.

11. A multiple port valve as claimed in claim 10, characterised in that, The second sealing ring includes a sealing rib connected to the lower end face; the third sealing ring includes a sealing rib connected to the upper end face.

12. A battery thermal management device, characterized by, Including the multi-way valve as described in any one of claims 1-11 above.

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