Thermal management system based on twelve-way valve
By adjusting the branch connections of the twelve-way valve system, the problems of complex and costly water valve systems in the thermal management system of electric vehicles are solved, and multi-functional switching and simplified operation of heat transfer are realized.
Patent Information
- Application Number
- CN202422726969.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-08
AI Technical Summary
In existing electric vehicle thermal management systems, water valve systems are complex, costly, and heavy, making it difficult to effectively achieve multiple heat transfer functions.
A twelve-way valve system is adopted, and the connection mode of different branches is adjusted by rotating the valve core of the twelve-way valve to form multiple closed loops, thereby realizing the heat transfer of branches such as battery, cooling, heat dissipation, and electric drive.
The number of water valves was simplified, reducing manufacturing costs and system weight, decreasing operational complexity, and enabling the switching of multiple thermal management functions.
Smart Images
Figure CN223520580U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application generally relates to the technical field of automobile thermal management system, and particularly relates to a thermal management system based on a twelve-way valve. BACKGROUND
[0002] The energy consumption of an electric vehicle directly affects the vehicle's endurance. The whole vehicle thermal management system has a great influence on the whole vehicle energy consumption. For example, cabin heating at low temperature and power battery heating consume a lot of power battery power and reduce the vehicle's endurance.
[0003] In order to reduce the energy consumption of the thermal management system, the current electric vehicle usually uses an integrated thermal management system with a heat pump system. Compared with the traditional cabin electric heating scheme, the heat pump system can reduce the energy consumption of the cabin heating. The integrated scheme integrates the electric drive cooling system, the power battery temperature control system (including the heating system and the cooling system), and the air conditioning system (including the refrigeration and heating system) of the whole vehicle, which can connect the systems and realize the flow of heat between the systems. For example, the heat generated by the electric drive system (drive motor, motor controller) during operation is recovered for cabin heating and power battery heating. A water cooling system is usually used to connect the systems, and the flow of the refrigerant liquid realizes the heat transfer between the systems.
[0004] In engineering, a water valve is used to switch the flow mode of the refrigerant liquid. The current system has the following problems:
[0005] In order to realize the switching of the complex water cooling branch, a complex water valve system is usually designed. The current system usually includes multiple water valves, which is complex, high in cost, and heavy in weight. CONTENT OF THE UTILITY MODEL
[0006] In view of the above defects or deficiencies in the prior art, it is desirable to provide a thermal management system based on a twelve-way valve.
[0007] The present application provides a thermal management system based on a twelve-way valve, comprising:
[0008] a twelve-way valve, the twelve-way valve having a first end, a second end, a third end, a fourth end, a fifth end, a sixth end, a seventh end, an eighth end, a ninth end, a tenth end, an eleventh end, and a twelfth end;
[0009] a battery branch, the battery branch being in communication with the first end and the twelfth end;
[0010] a cooling branch, the cooling branch being in communication with the second end and the eleventh end; the cooling branch is used for refrigerating the refrigerant liquid;
[0011] a heat dissipation branch, the heat dissipation branch being in communication with the third end and the fourth end; the heat dissipation branch is used for dissipating heat for the refrigerant liquid;
[0012] an electric drive branch, which is in communication with the fifth end and the tenth end;
[0013] a PTC branch, which is in communication with the sixth end and the seventh end; the PTC branch is used for heating the refrigerant liquid;
[0014] a straight-through branch, which is in communication with the eighth end and the ninth end;
[0015] the twelve-way valve is used for heat exchange of the battery branch, the cooling branch, the heat dissipation branch, the electric drive branch and the PTC branch through the refrigerant liquid.
[0016] According to the technical scheme provided by the application, the twelve-way valve has a first state;
[0017] when in the first state,
[0018] the first end is in communication with the fourth end;
[0019] the second end is in communication with the third end;
[0020] the fifth end is in communication with the twelfth end;
[0021] the sixth end is in communication with the eleventh end;
[0022] the seventh end is in communication with the eighth end;
[0023] the ninth end is in communication with the tenth end;
[0024] the battery branch, the heat dissipation branch, the cooling branch, the PTC branch, the straight-through branch and the electric drive branch are sequentially in communication to form a loop, which is used for filling the refrigerant liquid.
[0025] According to the technical scheme provided by the application, the twelve-way valve has a second state;
[0026] when in the second state,
[0027] the first end is in communication with the second end;
[0028] the third end is in communication with the twelfth end;
[0029] the fourth end is in communication with the eleventh end;
[0030] the fifth end is in communication with the tenth end;
[0031] the sixth end is in communication with the seventh end;
[0032] the eighth end is in communication with the ninth end;
[0033] The battery branch, the cooling branch, and the heat dissipation branch are sequentially communicated to form a loop, and the battery branch is cooled by the refrigerant liquid.
[0034] The electric drive branch forms a closed loop, and the electric drive branch is heated by the refrigerant liquid.
[0035] According to the technical scheme provided in the application, the twelve-way valve has a fourth state;
[0036] When in the fourth state,
[0037] The first end is communicated with the tenth end;
[0038] The second end is communicated with the ninth end;
[0039] The third end is communicated with the eighth end;
[0040] The fourth end is communicated with the fifth end;
[0041] The sixth end is communicated with the seventh end;
[0042] The eleventh end is communicated with the twelfth end;
[0043] The battery branch, the electric drive branch, the heat dissipation branch, the straight-through branch, and the cooling branch are sequentially communicated to form a loop;
[0044] The heat dissipation branch is used for dissipating heat of the battery branch and the electric drive branch by the refrigerant liquid;
[0045] The cooling branch is used for absorbing heat in the battery branch, the electric drive branch, and the surrounding environment by the refrigerant liquid to perform refrigeration.
[0046] According to the technical scheme provided in the application, the twelve-way valve has a fifth state;
[0047] When in the fifth state,
[0048] The first end is communicated with the eighth end;
[0049] The second end is communicated with the seventh end;
[0050] The third end is communicated with the fourth end;
[0051] The fifth end is communicated with the sixth end;
[0052] The ninth end is communicated with the twelfth end;
[0053] The tenth end is communicated with the eleventh end;
[0054] The battery branch and the straight-through branch form a closed loop for maintaining a current temperature for the battery branch;
[0055] The electric drive branch, the PTC branch and the cooling branch are sequentially communicated to form a loop; when the PTC branch or the cooling branch works, the electric drive branch is heated or cooled by the refrigerant liquid respectively, so as to adjust the temperature of the electric drive branch.
[0056] According to the technical scheme provided by the application, the twelve-way valve has a sixth state;
[0057] When in the sixth state,
[0058] The first end is communicated with the sixth end;
[0059] The second end is communicated with the third end;
[0060] The fourth end is communicated with the fifth end;
[0061] The seventh end is communicated with the twelfth end;
[0062] The eighth end is communicated with the eleventh end;
[0063] The ninth end is communicated with the tenth end;
[0064] The battery branch and the PTC branch are sequentially communicated to form a loop, and the battery branch is heated by the refrigerant liquid.
[0065] The electric drive branch, the heat dissipation branch, the cooling branch and the straight-through branch are sequentially communicated to form a loop; the heat dissipation branch or the cooling branch works, and the electric drive branch is cooled by the refrigerant liquid respectively.
[0066] According to the technical scheme provided by the application, the twelve-way valve has a seventh state;
[0067] When in the seventh state,
[0068] The first end is communicated with the second end;
[0069] The third end is communicated with the fourth end;
[0070] The fifth end is communicated with the twelfth end;
[0071] The sixth end is communicated with the eleventh end;
[0072] The seventh end is communicated with the tenth end;
[0073] The eighth end is communicated with the ninth end;
[0074] The battery branch, the cooling branch, the PTC branch and the electric drive branch are sequentially communicated to form a loop, when the PTC branch or the cooling branch works, the battery branch and the electric drive branch are heated or cooled simultaneously by the refrigerant liquid.
[0075] According to the technical scheme provided by the application, the twelve-way valve has an eighth state;
[0076] When in the eighth state,
[0077] The first end is communicated with the twelfth end;
[0078] The second end is communicated with the third end;
[0079] The fourth end is communicated with the eleventh end;
[0080] The fifth end is communicated with the tenth end;
[0081] The sixth end is communicated with the ninth end;
[0082] The seventh end is communicated with the eighth end;
[0083] The battery branch forms a closed loop for maintaining the current temperature of the battery branch;
[0084] The electric drive branch forms a closed loop for heat accumulation of the electric drive branch.
[0085] According to the technical scheme provided by the application, the twelve-way valve has a ninth state;
[0086] When in the ninth state,
[0087] The first end is communicated with the second end;
[0088] The third end is communicated with the tenth end;
[0089] The fourth end is communicated with the ninth end;
[0090] The fifth end is communicated with the eighth end;
[0091] The sixth end is communicated with the seventh end;
[0092] The eleventh end is communicated with the twelfth end;
[0093] The battery branch and the cooling branch are sequentially communicated to form a loop for cooling the battery branch by the refrigerant liquid;
[0094] The electric drive branch, the straight-through branch and the heat dissipation branch are sequentially communicated to form a loop, and the loop is used for heat dissipation of the electric drive branch through the refrigerant liquid.
[0095] According to the technical scheme provided in the application, the twelve-way valve has a twelfth state;
[0096] When the twelfth state is reached,
[0097] The first end is communicated with the sixth end;
[0098] The second end is communicated with the fifth end;
[0099] The third end is communicated with the fourth end;
[0100] The seventh end is communicated with the twelfth end;
[0101] The eighth end is communicated with the ninth end;
[0102] The tenth end is communicated with the eleventh end;
[0103] The battery branch and the PTC branch are sequentially communicated to form a loop, and the loop is used for heating of the battery branch through the refrigerant liquid;
[0104] The electric drive branch and the cooling branch are sequentially communicated to form a loop, and the loop is used for refrigeration and temperature reduction of the electric drive branch through the refrigerant liquid.
[0105] The application has the following beneficial effects:
[0106] The twelve-way valve is used for communication of the battery branch, the heat dissipation branch, the cooling branch, the PTC branch, the straight-through branch and the electric drive branch. The twelve-way valve has a specific communication mode inside, so that different branches are sequentially communicated to form a closed loop. During use, only the valve core of the twelve-way valve needs to be rotated, the communication mode of each end of the twelve-way valve is adjusted, the communication relationship of each branch is adjusted, and finally the multiple functions of the thermal management system are realized. This mode can reduce the number of water valves, thereby reducing the cost of manufacturing multiple water valves and reducing the overall weight of the system. Only the twelve-way valve needs to be rotated to realize the switching state, thereby reducing the complexity of operation. BRIEF DESCRIPTION OF DRAWINGS
[0107] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, made with reference to the accompanying drawings:
[0108] Figure 1 Fig. 1 is a schematic diagram of a communication relationship when a twelve-way valve is in a first state;
[0109] Figure 2 Fig. 2 is a schematic diagram of a communication relationship when the twelve-way valve is in a second state;
[0110] Figure 3 Fig. 12 is a schematic diagram of the connection relationship when the twelve-way valve is in the third state;
[0111] Figure 4 Fig. 13 is a schematic diagram of the connection relationship when the twelve-way valve is in the fourth state;
[0112] Figure 5 Fig. 14 is a schematic diagram of the connection relationship when the twelve-way valve is in the fifth state;
[0113] Figure 6 Fig. 15 is a schematic diagram of the connection relationship when the twelve-way valve is in the sixth state;
[0114] Figure 7 Fig. 16 is a schematic diagram of the connection relationship when the twelve-way valve is in the seventh state;
[0115] Figure 8 Fig. 17 is a schematic diagram of the connection relationship when the twelve-way valve is in the eighth state;
[0116] Figure 9 Fig. 18 is a schematic diagram of the connection relationship when the twelve-way valve is in the ninth state;
[0117] Figure 10 Fig. 19 is a schematic diagram of the connection relationship when the twelve-way valve is in the tenth state;
[0118] Figure 11 Fig. 20 is a schematic diagram of the connection relationship when the twelve-way valve is in the eleventh state;
[0119] Figure 12 Fig. 21 is a schematic diagram of the connection relationship when the twelve-way valve is in the twelfth state;
[0120] Figure 13 Fig. 22 is a schematic diagram of the structure of the twelve-way valve;
[0121] 1, battery branch; 2, cooling branch; 3, heat dissipation branch; 4, electric drive branch; 5, PTC branch; 6, straight-through branch; 7, first water pump; 8, battery water jacket; 9, radiator; 10, second water pump; 11, electric drive water jacket; 12, twelve-way valve; 13, fan; 14, PTC; 15, cooler;
[0122] 001, first end; 002, second end; 003, third end; 004, fourth end; 005, fifth end; 006, sixth end; 007, seventh end; 008, eighth end; 009, ninth end; 010, tenth end; 011, eleventh end; 012, twelfth end. DETAILED DESCRIPTION
[0123] The application will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to limit the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.
[0124] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in further detail below with reference to the drawings and embodiments.
[0125] The application provides a twelve-way valve-based thermal management system, comprising:
[0126] a twelve-way valve 12, referring to Figure 13 , the twelve-way valve 12 has a first end 001, a second end 002, a third end 003, a fourth end 004, a fifth end 005, a sixth end 006, a seventh end 007, an eighth end 008, a ninth end 009, a tenth end 010, an eleventh end 011, and a twelfth end 012;
[0127] a battery branch 1, which communicates with the first end 001 and the twelfth end 012; the battery branch 1 comprises a first water pump 7 and a battery water jacket 8 which communicate with each other;
[0128] a cooling branch 2, which communicates with the second end 002 and the eleventh end 011; the cooling branch 2 comprises a cooler 15 for cooling the refrigerant liquid;
[0129] a heat dissipation branch 3, which communicates with the third end 003 and the fourth end 004; the heat dissipation branch 3 comprises a radiator 9 and a fan 13 for dissipating heat from the refrigerant liquid;
[0130] an electric drive branch 4, which communicates with the fifth end 005 and the tenth end 010; the electric drive branch 4 comprises a second water pump 10 and an electric drive water jacket 11 which communicate with each other;
[0131] a PTC branch 5, which communicates with the sixth end 006 and the seventh end 007; the PTC branch 5 comprises a PTC 14 for heating the refrigerant liquid;
[0132] a straight-through branch 6, which communicates the eighth end 008 and the ninth end 009;
[0133] The twelve-way valve 12 is used to exchange heat for the battery branch 1, the cooling branch 2, the heat dissipation branch 3, the electric drive branch 4, and the PTC branch 5 through the refrigerant liquid.
[0134] Specifically, in this embodiment, the refrigerant liquid is water. The water jacket is a cavity shell sleeved outside the device, which can exchange heat with the device after the refrigerant liquid is introduced inside.
[0135] The twelve-way valve has a valve core with twelve communication interfaces, and the twelve communication interfaces have a fixed communication mode. When the valve core is arranged in the shell of the twelve-way valve, the twelve-way valve has twelve states according to different relative angles between the valve core and the shell of the twelve-way valve.
[0136] The twelve states of the twelve-way valve make different branches sequentially communicate to form a closed loop. During use, only the valve core of the twelve-way valve needs to be rotated to adjust the communication mode of each end of the twelve-way valve, so as to adjust the communication relationship of each branch, and finally realize multiple functions of the thermal management system.
[0137] In this way, the number of water valves can be reduced, thereby reducing the cost of manufacturing multiple water valves and reducing the overall weight of the system. Since only the twelve-way valve needs to be rotated to switch states, the complexity of operation is reduced.
[0138] Further, with reference to Figure 1 , the twelve-way valve 12 has a first state;
[0139] In the first state,
[0140] The first end 001 communicates with the fourth end 004;
[0141] The second end 002 communicates with the third end 003;
[0142] The fifth end 005 communicates with the twelfth end 012;
[0143] The sixth end 006 communicates with the eleventh end 011;
[0144] The seventh end 007 communicates with the eighth end 008;
[0145] The ninth end 009 communicates with the tenth end 010;
[0146] When the refrigerant liquid needs to be filled, the first state is selected:
[0147] The battery branch 1, the heat dissipation branch 3, the cooling branch 2, the PTC branch 5, the straight-through branch 6, and the electric drive branch 4 sequentially communicate to form a loop, which is used to fill the refrigerant liquid into the pipeline of the entire thermal management system.
[0148] Further, with reference to Figure 2 , the twelve-way valve 12 has a second state;
[0149] In the second state,
[0150] The first end 001 is in communication with the second end 002;
[0151] The third end 003 is in communication with the twelfth end 012;
[0152] The fourth end 004 is in communication with the eleventh end 011;
[0153] The fifth end 005 is in communication with the tenth end 010;
[0154] The sixth end 006 is in communication with the seventh end 007;
[0155] The eighth end 008 is in communication with the ninth end 009;
[0156] When only the battery needs to be cooled, the second state is selected:
[0157] The PTC branch 5 and the straight-through branch 6 each form a closed loop;
[0158] The battery branch 1, the cooling branch 2, and the heat dissipation branch 3 are in sequence in communication to form a loop, for cooling the battery branch 1 by the refrigerant liquid;
[0159] Driven by the first water pump 7, the refrigerant liquid flows through the battery water jacket 8, the cooler 15, and the radiator 9 in sequence; when the refrigerant liquid flows through the battery water jacket 8, it exchanges heat with the battery and absorbs the heat emitted by the battery to the battery water jacket 8, and then when it flows through the radiator 9 and the cooler 15, it transfers heat to the radiator 9 and the cooler 15, finally achieving the effect of heat dissipation and cooling.
[0160] The electric drive branch 4 forms a closed loop alone, and since it is not in communication with other branches, the heat of the electric drive branch 4 is transferred to the electric drive water jacket 11, and then the electric drive branch 4 is heated by the refrigerant liquid.
[0161] Further, with reference to Figure 3 , the twelve-way valve 12 has a third state;
[0162] In the third state,
[0163] The first end 001 is in communication with the twelfth end 012;
[0164] The second end 002 is in communication with the eleventh end 011;
[0165] The third end 003 is in communication with the tenth end 010;
[0166] The fourth end 004 is in communication with the ninth end 009;
[0167] The fifth end 005 is in communication with the sixth end 006.
[0168] The seventh end 007 is in communication with the eighth end 008.
[0169] The battery branch 1 and the cooling branch 2 each form a closed loop; the electric drive branch 4, the PTC branch 5, the straight-through branch 6 and the heat dissipation branch 3 are in communication in sequence to form a closed loop.
[0170] Since the function realized by the twelve-way valve 12 in the fifth state is the same as that in the third state, the third state is generally not selected for use.
[0171] Further, referring to Figure 4 , the twelve-way valve 12 has a fourth state;
[0172] In the fourth state,
[0173] The first end 001 is in communication with the tenth end 010.
[0174] The second end 002 is in communication with the ninth end 009.
[0175] The third end 003 is in communication with the eighth end 008.
[0176] The fourth end 004 is in communication with the fifth end 005.
[0177] The sixth end 006 is in communication with the seventh end 007.
[0178] The eleventh end 011 is in communication with the twelfth end 012.
[0179] When it is required to simultaneously dissipate heat and refrigerate the battery and the electric drive, the fourth state is selected:
[0180] The PTC branch 5 alone forms a closed loop.
[0181] The battery branch 1, the electric drive branch 4, the heat dissipation branch 3, the straight-through branch 6 and the cooling branch 2 are in communication in sequence to form a loop; the heat dissipation branch 3 is used to dissipate heat for the battery branch 1 and the electric drive branch 4 through the refrigerant liquid; the cooling branch 2 is used to absorb heat in the battery branch 1, the electric drive branch 4 and the surrounding environment through the refrigerant liquid to refrigerate.
[0182] The refrigerant liquid absorbs heat when flowing through the battery branch 1 and the electric drive branch 4, and releases heat when flowing through the heat dissipation branch 3 and the cooling branch 2. Thus, the heat of the battery branch 1 and the electric drive branch 4 can be transferred to the heat dissipation branch 3 and the cooling branch 2 to realize the function of simultaneously dissipating heat and refrigerating the battery branch 1 and the electric drive branch 4.
[0183] Further, referring toFigure 5 , the twelve-way valve 12 has a fifth state;
[0184] In the fifth state,
[0185] The first end 001 communicates with the eighth end 008;
[0186] The second end 002 communicates with the seventh end 007;
[0187] The third end 003 communicates with the fourth end 004;
[0188] The fifth end 005 communicates with the sixth end 006;
[0189] The ninth end 009 communicates with the twelfth end 012;
[0190] The tenth end 010 communicates with the eleventh end 011;
[0191] When only temperature adjustment of the electric drive is needed, the fifth state is selected:
[0192] The heat dissipation branch 3 alone forms a closed loop;
[0193] The battery branch 1 and the straight-through branch 6 form a closed loop, and the first water pump 7 drives the refrigerant liquid to circulate by itself, for maintaining the current temperature of the battery branch 1;
[0194] The electric drive branch 4, the PTC branch 5 and the cooling branch 2 are sequentially communicated to form a loop; when the PTC branch 5 or the cooling branch 2 works, it is respectively used for heating or cooling the electric drive branch 4 through the refrigerant liquid, to adjust the temperature of the electric drive branch 4.
[0195] In this state, the PTC 14 and the cooler 15 do not work at the same time, and at most only one of them works at the same time.
[0196] When the temperature of the electric drive branch 4 is maintained within the normal range, neither of them works; when the temperature is too high, the cooler 15 is started to cool the electric drive branch 4 through the refrigerant liquid; when the temperature is too low, the PTC 14 is started to heat the electric drive branch 4 through the refrigerant liquid.
[0197] Further, with reference to Figure 6 , the twelve-way valve 12 has a sixth state;
[0198] In the sixth state,
[0199] The first end 001 communicates with the sixth end 006;
[0200] The second end 002 communicates with the third end 003;
[0201] The fourth end 004 is in communication with the fifth end 005;
[0202] The seventh end 007 is in communication with the twelfth end 012;
[0203] The eighth end 008 is in communication with the eleventh end 011;
[0204] The ninth end 009 is in communication with the tenth end 010;
[0205] When the battery temperature is too low, and the electric drive temperature is too high, the sixth state is selected:
[0206] The battery branch 1, the PTC branch 5 are in turn communicated to form a loop, start the PTC 14, for heating the battery branch 1 through the refrigerant liquid;
[0207] The electric drive branch 4, the heat dissipation branch 3, the cooling branch 2 and the straight-through branch 6 are in turn communicated to form a loop. The heat dissipation branch 3 or the cooling branch 2 works, respectively for transferring heat through the refrigerant liquid, for the electric drive branch 4 to dissipate heat or refrigeration cooling.
[0208] Further, with reference to Figure 7 The twelve-way valve 12 has a seventh state;
[0209] In the seventh state,
[0210] The first end 001 is in communication with the second end 002;
[0211] The third end 003 is in communication with the fourth end 004;
[0212] The fifth end 005 is in communication with the twelfth end 012;
[0213] The sixth end 006 is in communication with the eleventh end 011;
[0214] The seventh end 007 is in communication with the tenth end 010;
[0215] The eighth end 008 is in communication with the ninth end 009;
[0216] When it is needed to heat or refrigerate the battery and the electric drive at the same time, the seventh state is selected:
[0217] The straight-through branch 6 and the heat dissipation branch 3 respectively form a closed loop alone;
[0218] The battery branch 1, the cooling branch 2, the PTC branch 5 and the electric drive branch 4 are in turn communicated to form a loop.
[0219] The PTC 14 and the cooler 15 do not work at the same time, and when the PTC branch 5 or the cooling branch 2 works, heat is respectively transferred through the refrigerant liquid to heat or cool the electric drive branch 4 and the electric drive branch 4 at the same time, and the temperature of the electric drive branch 4 and the electric drive branch 4 is adjusted.
[0220] Further, referring to Figure 8 , the twelve-way valve 12 has a ninth state;
[0221] In the ninth state,
[0222] The first end 001 communicates with the second end 002;
[0223] The third end 003 communicates with the tenth end 010;
[0224] The fourth end 004 communicates with the ninth end 009;
[0225] The fifth end 005 communicates with the eighth end 008;
[0226] The sixth end 006 communicates with the ninth end 009;
[0227] The seventh end 007 communicates with the eighth end 008;
[0228] When the temperature adjustment of the battery and the electric drive is not needed, the eighth state is selected:
[0229] The straight-through branch 6 and the PTC branch 5 communicate to form a closed loop; the cooling branch 2 and the heat dissipation branch 3 form a closed loop;
[0230] The battery branch 1 forms a closed loop for maintaining the current temperature of the battery branch 1;
[0231] The electric drive branch 4 forms a closed loop for heat storage of the electric drive branch 4.
[0232] Further, referring to Figure 9 , the twelve-way valve 12 has a ninth state;
[0233] In the ninth state,
[0234] The first end 001 communicates with the second end 002;
[0235] The third end 003 communicates with the tenth end 010;
[0236] The fourth end 004 communicates with the ninth end 009;
[0237] The fifth end 005 communicates with the eighth end 008;
[0238] The sixth end 006 is in communication with the seventh end 007;
[0239] The eleventh end 011 is in communication with the twelfth end 012;
[0240] When the battery needs to be cooled and the electric drive needs to be cooled, the ninth state is selected:
[0241] The battery branch 1 and the cooling branch 2 are in sequence to form a loop, and the battery branch 1 is cooled by the refrigerant liquid; the refrigerant liquid in this loop circulates between the battery and the cooler 15 to transfer heat.
[0242] The electric drive branch 4, the straight-through branch 6 and the heat dissipation branch 3 are in sequence to form a loop, and the electric drive branch 4 is cooled by the refrigerant liquid; the refrigerant liquid in this loop circulates between the electric drive and the heat sink 9 to transfer heat and achieve the heat dissipation effect.
[0243] Further, referring to Figure 10 , the twelve-way valve 12 has a tenth state;
[0244] In the tenth state,
[0245] The first end 001 is in communication with the twelfth end 012;
[0246] The second end 002 is in communication with the ninth end 009;
[0247] The third end 003 is in communication with the eighth end 008;
[0248] The fourth end 004 is in communication with the seventh end 007;
[0249] The fifth end 005 is in communication with the sixth end 006;
[0250] The tenth end 010 is in communication with the eleventh end 011.
[0251] The battery branch 1 forms a loop alone;
[0252] The electric drive branch 4, the PTC branch 5, the heat dissipation branch 3, the straight-through branch 6 and the cooling branch 2 are in sequence to form a closed loop.
[0253] Since when the twelve-way valve 12 is in the sixth state, the cooler 15 or the heat sink 9 can be started to cool the electric drive by closing the PTC 14, which is repeated with the function of the twelve-way valve 12 in the tenth state, and the tenth state is generally not selected for use.
[0254] Further, referring to Figure 11 , the eleven-way valve 12 has an eleventh state;
[0255] In the eleventh state,
[0256] The first end 001 communicates with the eighth end 008;
[0257] The second end 002 communicates with the seventh end 007;
[0258] The third end 003 communicates with the sixth end 006;
[0259] The fourth end 004 communicates with the fifth end 005;
[0260] The ninth end 009 communicates with the tenth end 010;
[0261] The eleventh end 011 communicates with the twelfth end 012.
[0262] The eleventh state and the first state are both full-communication states, and can also be used as refrigerant liquid filling.
[0263] Further, with reference to Figure 12 , the twelve-way valve 12 has a twelfth state;
[0264] In the twelfth state,
[0265] The first end 001 communicates with the sixth end 006;
[0266] The second end 002 communicates with the fifth end 005;
[0267] The third end 003 communicates with the fourth end 004;
[0268] The seventh end 007 communicates with the twelfth end 012;
[0269] The eighth end 008 communicates with the ninth end 009;
[0270] The tenth end 010 communicates with the eleventh end 011;
[0271] When the battery needs to be heated and the electric drive needs to be refrigerated, the twelfth state is selected:
[0272] The battery branch 1 and the PTC branch 5 are sequentially communicated to form a loop, and the refrigerant liquid circulates and transfers heat in the loop, which is used to heat the battery branch 1 through the refrigerant liquid;
[0273] The electric drive branch 4 and the cooling branch 2 are sequentially communicated to form a loop, and the refrigerant liquid circulates and transfers heat in the loop, which is used to refrigerate and cool the electric drive branch 4 through the refrigerant liquid.
[0274] The above description is only the preferred embodiment of the present application and the explanation of the applied technical principles. It should be understood by those skilled in the art that the inventive scope of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by the combinations of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by the mutual replacement of the above features and the technical features with similar functions disclosed in the present application (but not limited to) without departing from the inventive concept.
Claims
1. A twelve-way valve based thermal management system having a coolant fluid flowing internally, characterized by, Comprising: a twelve-way valve (12) having a first end (001), a second end (002), a third end (003), a fourth end (004), a fifth end (005), a sixth end (006), a seventh end (007), an eighth end (008), a ninth end (009), a tenth end (010), an eleventh end (011), and a twelfth end (012); a battery branch (1) in communication with the first end (001) and the twelfth end (012); a cooling branch (2) in communication with the second end (002) and the eleventh end (011); the cooling branch (2) is used for refrigerating the refrigerant liquid; a heat dissipation branch (3) in communication with the third end (003) and the fourth end (004); the heat dissipation branch (3) is used for dissipating heat for the refrigerant liquid; an electric drive branch (4) in communication with the fifth end (005) and the tenth end (010); a PTC branch (5) in communication with the sixth end (006) and the seventh end (007); the PTC branch (5) is used for heating the refrigerant liquid; a straight-through branch (6) in communication with the eighth end (008) and the ninth end (009); the twelve-way valve (12) is used for heat exchange of the battery branch (1), the cooling branch (2), the heat dissipation branch (3), the electric drive branch (4), and the PTC branch (5) through the refrigerant liquid.
2. The twelve-way valve based thermal management system of claim 1, wherein, the twelve-way valve (12) has a first state; in the first state, the first end (001) is in communication with the fourth end (004); the second end (002) is in communication with the third end (003); the fifth end (005) is in communication with the twelfth end (012); the sixth end (006) is in communication with the eleventh end (011); the seventh end (007) is in communication with the eighth end (008); the ninth end (009) is in communication with the tenth end (010); the battery branch (1), the heat dissipation branch (3), the cooling branch (2), the PTC branch (5), the straight-through branch (6), and the electric drive branch (4) are sequentially in communication to form a loop, which is used for filling the refrigerant liquid.
3. The twelve-way valve based thermal management system of claim 1, wherein, the twelve-way valve (12) has a second state; in the second state, the first end (001) is in communication with the second end (002); the third end (003) is in communication with the twelfth end (012); the fourth end (004) is in communication with the eleventh end (011); the fifth end (005) is in communication with the tenth end (010); the sixth end (006) is in communication with the seventh end (007); the eighth end (008) is in communication with the ninth end (009); the battery branch (1), the cooling branch (2), and the heat dissipation branch (3) are sequentially in communication to form a loop, which is used for cooling the battery branch (1) through the refrigerant liquid. The electric drive branch (4) forms a closed loop for heat storage of the electric drive branch (4) by the refrigerant liquid.
4. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a fourth state; In the fourth state, The first end (001) is in communication with the tenth end (010); The second end (002) is in communication with the ninth end (009); The third end (003) is in communication with the eighth end (008); The fourth end (004) is in communication with the fifth end (005); The sixth end (006) is in communication with the seventh end (007); The eleventh end (011) is in communication with the twelfth end (012); The battery branch (1), the electric drive branch (4), the heat dissipation branch (3), the straight-through branch (6) and the cooling branch (2) are sequentially in communication to form a loop; The heat dissipation branch (3) is used for heat dissipation of the battery branch (1) and the electric drive branch (4) by the refrigerant liquid; The cooling branch (2) is used for refrigeration by absorbing heat in the battery branch (1), the electric drive branch (4) and the surrounding environment.
5. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a fifth state; In the fifth state, The first end (001) is in communication with the eighth end (008); The second end (002) is in communication with the seventh end (007); The third end (003) is in communication with the fourth end (004); The fifth end (005) is in communication with the sixth end (006); The ninth end (009) is in communication with the twelfth end (012); The tenth end (010) is in communication with the eleventh end (011); The battery branch (1) and the straight-through branch (6) form a closed loop for maintaining the current temperature of the battery branch (1); The electric drive branch (4), the PTC branch (5) and the cooling branch (2) are sequentially in communication to form a loop; when the PTC branch (5) or the cooling branch (2) works, it is respectively used for heating or refrigeration of the electric drive branch (4) by the refrigerant liquid, so as to adjust the temperature of the electric drive branch (4).
6. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a sixth state; In the sixth state, The first end (001) is in communication with the sixth end (006); The second end (002) is in communication with the third end (003); The fourth end (004) is in communication with the fifth end (005); The seventh end (007) is in communication with the twelfth end (012); The eighth end (008) is in communication with the eleventh end (011); The ninth end (009) is in communication with the tenth end (010); The battery branch (1) and the PTC branch (5) are sequentially in communication to form a loop, which is used for heating of the battery branch (1) by the refrigerant liquid; The electric drive branch (4), the heat dissipation branch (3), the cooling branch (2) and the straight-through branch (6) are sequentially in communication to form a loop; the heat dissipation branch (3) or the cooling branch (2) works, which is respectively used for heat dissipation or refrigeration of the electric drive branch (4) by the refrigerant liquid.
7. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a seventh state; In the seventh state, The first end (001) is in communication with the second end (002); The third end (003) is in communication with the fourth end (004); The fifth end (005) is in communication with the twelfth end (012); The sixth end (006) is in communication with the eleventh end (011); The seventh end (007) is in communication with the tenth end (010); The eighth end (008) is in communication with the ninth end (009); The battery branch (1), the cooling branch (2), the PTC branch (5) and the electric drive branch (4) are sequentially communicated to form a loop, when the PTC branch (5) or the cooling branch (2) works, respectively used for heating or cooling the electric drive branch (4) and the electric drive branch (4) through the refrigerant liquid, adjusting the temperature of the electric drive branch (4) and the electric drive branch (4).
8. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has an eighth state; In the eighth state, The first end (001) is in communication with the twelfth end (012); The second end (002) is in communication with the third end (003); The fourth end (004) is in communication with the eleventh end (011); The fifth end (005) is in communication with the tenth end (010); The sixth end (006) is in communication with the ninth end (009); The seventh end (007) is in communication with the eighth end (008); The battery branch (1) forms a closed loop, used for maintaining the current temperature of the battery branch (1); The electric drive branch (4) forms a closed loop, used for heat storage of the electric drive branch (4).
9. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a ninth state; In the ninth state, The first end (001) is in communication with the second end (002); The third end (003) is in communication with the tenth end (010); The fourth end (004) is in communication with the ninth end (009); The fifth end (005) is in communication with the eighth end (008); The sixth end (006) is in communication with the seventh end (007); The eleventh end (011) is in communication with the twelfth end (012); The battery branch (1) and the cooling branch (2) are sequentially communicated to form a loop, used for cooling the battery branch (1) through the refrigerant liquid; The electric drive branch (4), the straight-through branch (6) and the heat dissipation branch (3) are sequentially communicated to form a loop, used for heat dissipation of the electric drive branch (4) through the refrigerant liquid.
10. The twelve-way valve based thermal management system of claim 1, wherein, The twelve-way valve (12) has a twelfth state; In the twelfth state, The first end (001) is in communication with the sixth end (006); The second end (002) is in communication with the fifth end (005); The third end (003) is in communication with the fourth end (004); The seventh end (007) is in communication with the twelfth end (012); The eighth end (008) is in communication with the ninth end (009); The tenth end (010) is in communication with the eleventh end (011); The battery branch (1) and the PTC branch (5) are sequentially communicated to form a loop, and the battery branch (1) is heated by the refrigerant liquid. The electric drive branch (4) and the cooling branch (2) are sequentially communicated to form a loop, and the electric drive branch (4) is cooled by the refrigerant liquid.