CN217641525U - Phase change radiator and integrated battery thermal management system - Google Patents
Phase change radiator and integrated battery thermal management system Download PDFInfo
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- CN217641525U CN217641525U CN202221442111.4U CN202221442111U CN217641525U CN 217641525 U CN217641525 U CN 217641525U CN 202221442111 U CN202221442111 U CN 202221442111U CN 217641525 U CN217641525 U CN 217641525U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a become radiator and integrated form battery thermal management system. It includes the casing, fills in the inside phase transition layer of casing, be equipped with two heat pipes in the phase transition layer, the heat pipe includes feed liquor pipe, first current concentration box, second current concentration box and drain pipe, the one end of feed liquor pipe and drain pipe all extends to the casing outside, the first current concentration box of feed liquor pipe other end intercommunication, the drain pipe other end intercommunication second current concentration box, through a plurality of parallel arrangement's shunt tubes intercommunication between first current concentration box and the second current concentration box. The cooling liquid of the utility model circulates in a shunting way through a plurality of shunt tubes in the heat conduction pipe, thereby quickening the circulation rate of the cooling liquid and facilitating the quick realization of heat exchange; meanwhile, the plurality of shunt tubes are independently arranged, so that the contact area between the shunt tubes and the phase-change material is increased, and the heat exchange efficiency between the shunt tubes and the phase-change material is further improved.
Description
Technical Field
The utility model belongs to the technical field of automobile power battery, concretely relates to phase change radiator and integrated form battery thermal management system.
Background
The phase change characteristic of the phase change material is utilized to effectively reduce the temperature of the power battery, the battery is kept to work in a proper temperature environment, the opening of other radiating units can be reduced, and the energy consumption of a heat management system is reduced. At present, phase change materials are applied to battery thermal management, most of the phase change materials are used for wrapping batteries, and the phase change materials are in direct or indirect contact with the batteries, so that the heat dissipation of the batteries is realized.
The use of phase change materials in direct or indirect contact with the cell has certain disadvantages. If the phase change material melts due to the fact that the temperature of the battery is too high, the phase change material cannot absorb heat by utilizing latent heat of the phase change material, and the heat dissipation capacity is lost. If the temperature of the battery needs to be further reduced, other heat dissipation methods such as air cooling, water cooling and the like need to be used. The air-cooled heat dissipation efficiency is poor and can not be applied to the high-rate discharging system of the large-capacity battery, and the water cooling can provide effective heat dissipation, but provides the heat dissipation of the battery, and simultaneously, the heat dissipation is carried out on the phase-change material, so that the energy waste is caused.
At present, a heat radiator is formed by wrapping a single heat conducting pipe by using a phase change material, and heat exchange is realized between the heat radiator and the phase change material in a mode that coolant flows through the heat conducting pipe, so that the purpose of battery heat management is achieved. This type of radiator has a relatively slow rate of coolant flow due to the single heat pipe, which results in an unexpected heat exchange performance.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the deficiencies in the prior art, providing a phase change radiator and integrated form battery thermal management system that simple structure, heat exchange efficiency are high.
The utility model adopts the technical proposal that: the utility model provides a phase transition radiator, includes the casing, fills in the inside phase transition layer of casing, be equipped with two heat pipes in the phase transition layer, the heat pipe includes feed liquor pipe, first current concentration box, second current concentration box and drain pipe, the one end of feed liquor pipe and drain pipe all extends to the casing outside, the first current concentration box of feed liquor pipe other end intercommunication, the drain pipe other end intercommunication second current concentration box, shunt tubes intercommunication through a plurality of parallel arrangement between first current concentration box and the second current concentration box.
Further, the heat pipe still includes a plurality of conducting strips, and parallel interval arrangement between a plurality of conducting strips, a plurality of shunt tubess pass a plurality of conducting strips perpendicularly.
Further, the shunt pipe is of a straight pipe structure.
Furthermore, the shunt tubes are of bent tube structures
Furthermore, one end of the liquid inlet pipe and one end of the liquid outlet pipe extend out of the shell from two adjacent side faces of the shell respectively.
Furthermore, one end of the liquid inlet pipe and one end of the liquid outlet pipe extend out of the shell from two opposite side surfaces of the shell respectively.
An integrated battery thermal management system comprises a battery thermal management circulation loop and a motor thermal management circulation loop, wherein the phase change radiator is arranged in the battery thermal management circulation loop and the motor thermal management circulation loop.
Further, the battery heat management circulation loop comprises a first water pump, a first cooler, a battery water cooling plate, a first valve, a second valve and a phase change radiator, wherein first heat conduction pipes in the first water pump, the battery water cooling plate, the second valve and the phase change radiator are sequentially connected to form a closed loop, one end of the first valve is connected between the battery water cooling plate and the second valve, the other end of the first valve is connected with one end of the first cooler, and the other end of the first cooler is connected between the first water pump and the phase change radiator.
Furthermore, the motor heat management circulation loop comprises a second water pump, a second cooler, a motor controller, a fourth valve, a fifth valve and a phase-change radiator, wherein second heat conduction pipes of the second water pump, the motor controller, the fourth valve and the phase-change radiator are sequentially connected to form a closed loop, one end of the fifth valve is connected between the motor controller and the fourth valve, the other end of the fifth valve is connected with one end of the second cooler, and the other end of the second cooler is connected between the second water pump and the phase-change radiator.
The beneficial effects of the utility model are that:
the utility model discloses inlay in the phase transition layer that constitutes by phase change material and establish the heat pipe, through a plurality of independent shunt tubes intercommunication between two collection flow boxes of heat pipe, when the coolant liquid flowed in the collection flow box from one end feed liquor pipe, can shunt through a plurality of shunt tubes, then collect in the collection flow box of the other end again, flowed through the drain pipe at last. The cooling liquid of the utility model circulates in a shunting way through a plurality of shunt tubes in the heat conduction pipe, thereby quickening the circulation rate of the cooling liquid and facilitating the quick realization of heat exchange; meanwhile, the plurality of shunt tubes are independently arranged, so that the contact area between the shunt tubes and the phase-change material is increased, and the heat exchange efficiency between the shunt tubes and the phase-change material is further improved.
The utility model discloses a plurality of shunt tubes design is straight tube or return bend form, and not only simple structure also can be according to the nimble flexible position of arranging of the volume size of radiator.
The utility model relates to a plurality of water conservancy diversion pieces, a plurality of shunt tubes pass the water conservancy diversion piece perpendicularly, have further increaseed heat pipe and phase change material's contact surface, have improved the performance of heat transfer.
The utility model discloses utilize phase change heat sink effectively to unite motor thermal management system and battery thermal management system, not only can effectively reduce the temperature of battery under the high temperature condition, can also reduce the frequency reduction system energy consumption of radiator. Meanwhile, the heat can be released to effectively heat the battery at low temperature, the heat can be used as a medium to realize waste heat utilization of the motor, the heat of the motor is utilized to heat the battery, other high-energy-consumption modes are adopted to heat the battery at low temperature, and the energy consumption of a heat management system of the whole vehicle is reduced. Therefore, the utility model discloses not only can realize better heat management effect, can realize the energy consumption arable land simultaneously, the combined effect is higher.
Drawings
Fig. 1 is a perspective view of the phase change heat sink of embodiment 1 of the present invention.
Fig. 2 is a perspective view of the heat pipe of embodiment 1 of the phase change heat sink of the present invention.
Fig. 3 is a perspective view of another view angle of the heat pipe of embodiment 1 of the phase change heat sink of the present invention.
Fig. 4 is a plan view of a perspective of the heat pipe of embodiment 1 of the phase change heat sink of the present invention.
Fig. 5 is a plan view of another view angle of the heat pipe of embodiment 1 of the phase change heat sink of the present invention.
Fig. 6 is a perspective view of the phase change heat sink of embodiment 2 of the present invention.
Fig. 7 is a perspective view of a heat pipe according to embodiment 2 of the phase change heat sink of the present invention.
Fig. 8 is a plan view of the heat pipe of embodiment 2 of the phase change heat sink of the present invention.
Fig. 9 is a schematic diagram of an integrated battery thermal management system according to the present invention.
In the figure: 1-a battery water cooling plate; 2-a first valve; 3-a first water pump; 4-a first cooler; 5-a second valve; 6-a third valve; 7-a phase change heat sink; 8-a fourth valve; 9-a fifth valve; 10-a sixth valve; 11-a second cooler; 12-a second water pump; 13-a motor; 14-a motor controller; 15-a housing; 16-a phase change layer; 17-a first heat pipe; 18-a second thermally conductive pipe; 19-a liquid inlet pipe; 20-a liquid outlet pipe; 21-a first manifold box; 22-a second manifold box; 23-a shunt tube; 24-heat conducting fins.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1-8, the utility model provides a phase change radiator, including casing 15, pack in the inside phase change layer 16 of casing 15, phase change layer 16 comprises phase change material, and it is filled up with inside casing 15, inlay in the phase change layer 16 and be equipped with two independent heat pipes, the heat pipe includes feed liquor pipe 19, first current collecting box 21, second current collecting box 22 and drain pipe 20, the one end of feed liquor pipe 19 and drain pipe 20 all extends to casing 15 outside, the first current collecting box 21 of feed liquor pipe 19 other end intercommunication, the second current collecting box 22 of drain pipe 20 other end intercommunication, the shunt tubes 23 intercommunication through a plurality of parallel arrangement between first current collecting box 21 and the second current collecting box 22 forms array's arrangement structure between a plurality of shunt tubes, can reduce the area of radiator.
The utility model discloses inlay in the phase change layer that constitutes by phase change material and establish two heat pipes, through a plurality of independent shunt tubes 23 intercommunication between two collection flow boxes of heat pipe, when the coolant liquid flowed in the collection flow box from one end feed liquor pipe 19, can shunt through a plurality of shunt tubes 23, then collect in the collection flow box of the other end again, flowed out through drain pipe 20 at last. The cooling liquid of the utility model circulates in the heat conduction pipe in a shunting way through the plurality of shunt tubes, thereby quickening the circulation rate of the cooling liquid and facilitating the quick realization of heat exchange; meanwhile, the plurality of shunt tubes are independently arranged, so that the contact area between the shunt tubes and the phase-change material is increased, and the heat exchange performance between the shunt tubes and the phase-change material is further improved.
In the above solution, the heat pipe further includes a plurality of heat conducting fins 24, the plurality of heat conducting fins 24 are arranged in parallel at intervals, and the plurality of shunt tubes 23 vertically pass through the plurality of heat conducting fins 24. The design of the flow deflector 24 further increases the contact surface between the heat conduction pipe and the phase-change material, and improves the heat exchange performance.
In the above solution, the structure of the shunt tube 23 can have various forms, such as a straight tube structure, or an S-shaped bent tube structure. When the shunt tube 23 is an elbow structure, the deflector 24 is disposed on a straight line segment to form a vertical arrangement with the shunt tube 23.
In the above scheme, according to the layout position requirement of the heat sink in the thermal management system, the liquid inlet and the liquid outlet may be disposed on any two sides or the same side of the housing 15, specifically, one end of the liquid inlet tube 19 and one end of the liquid outlet tube 20 extend out of the housing from two adjacent sides of the housing 15, or one end of the liquid inlet tube 19 and one end of the liquid outlet tube 20 extend out of the housing from two opposite sides of the housing 15.
Example 1
As shown in fig. 1-5, the utility model provides a phase change radiator, include casing 15, pack in the inside phase change layer 16 of casing, be equipped with two independent heat pipes in the phase change layer 16, be first heat pipe 17 and second heat pipe 18 respectively, the heat pipe includes feed liquor pipe 19, first current collecting box 21, second current collecting box 22, drain pipe 20 and a plurality of conducting strip 24, the casing is outside from two adjacent sides of casing 1 extension respectively to the one end of feed liquor pipe 19 and drain pipe 20, the first current collecting box 21 of feed liquor pipe 19 other end intercommunication, the drain pipe 20 other end intercommunication second current collecting box 22, communicate through a plurality of parallel arrangement' S shunt tubes 23 between first current collecting box 21 and the second current collecting box 22, shunt tubes 23 is the elbow structure of S-shaped, parallel interval arrangement between a plurality of conducting strip 24, a plurality of straightway among a plurality of shunt tubes 23 passes a plurality of conducting strip 24 perpendicularly. The utility model discloses the coolant liquid circulates with the form of reposition of redundant personnel through shunt tubes 23 of a plurality of return bend forms in the heat pipe to combine conducting strip 24 to arrange, improved its and phase change material's area of contact, accelerated the circulation speed of coolant liquid, the quick realization of being convenient for and phase change material's heat exchange.
Example 2
As shown in fig. 6-8, the utility model provides a phase change radiator, include casing 15, fill in the inside phase change layer 16 of casing, be equipped with two independent heat pipes in the phase change layer 16, be first heat pipe 17 and second heat pipe 18 respectively, the heat pipe includes feed liquor pipe 19, first current collecting box 21, second current collecting box 22, drain pipe 20 and a plurality of conducting strip 24, the casing 15 outside is extended from two relative sides of casing 15 respectively to the one end of feed liquor pipe 19 and drain pipe 20, the first current collecting box 21 of feed liquor pipe 19 other end intercommunication, the drain pipe 20 other end intercommunication second current collecting box 22, communicate through a plurality of parallel arrangement's shunt tubes 23 between first current collecting box 21 and the second current collecting box 22, shunt tubes 23 is the straight tube structure, parallel interval arrangement between a plurality of conducting strip 24, a plurality of shunt tubes 23 pass a plurality of conducting strip 24 perpendicularly. The utility model discloses the shunt tubes through a plurality of straight tube forms of coolant liquid circulate with the form of reposition of redundant personnel in the heat pipe to combine the conducting strip to arrange, improved its and phase change material's area of contact, accelerated the circulation speed of coolant liquid, the quick realization of being convenient for and phase change material's heat exchange.
As shown in fig. 9, the utility model also provides an integrated form battery thermal management system, including battery thermal management circulation circuit and motor thermal management circulation circuit, be equipped with as above phase change radiator 7 in battery thermal management circulation circuit and the motor thermal management circulation circuit.
The battery thermal management circulation loop comprises a first water pump 3, a first cooler 4, a battery water cooling plate 1, a first valve 2, a second valve 5, a phase change radiator 7 and a third valve 6, wherein first heat conduction pipes 17 in the first water pump 3, the battery water cooling plate 1, the second valve 5 and the phase change radiator 7 are sequentially connected to form a closed loop, one end of the first valve 2 is connected between the battery water cooling plate 1 and the second valve 5, the other end of the first valve is connected with one end of the first cooler 4, the other end of the first cooler 4 is connected between the first heat conduction pipes 17 of the first water pump 3 and the phase change radiator 7, and the third valve 6 is arranged in parallel with a branch formed by the first valve 2 and the first cooler 4.
The motor heat management circulation loop comprises a second water pump 12, a second cooler 11, a motor 13 (a water cooling plate), a motor controller 14 (a water cooling plate), a fourth valve 8, a fifth valve 9, a phase change radiator 7 and a sixth valve 10, wherein the second water pump 12, the motor 13, the motor controller 14, the fourth valve 8 and the second heat pipe 18 of the phase change radiator 7 are sequentially connected to form a closed loop, one end of the fifth valve 9 is connected between the motor controller 14 and the fourth valve 8, the other end of the fifth valve is connected with one end of the second cooler 11, the other end of the second cooler 11 is connected between the second water pump 12 and the second heat pipe 18 of the phase change radiator 17, and the branch formed by the sixth valve 10, the fifth valve 9 and the second cooler 11 are arranged in parallel. The first valve to the sixth valve are all electromagnetic valves.
The utility model integrates the battery heat management system and the motor heat management system into an integral heat management system through the phase-change radiator 7, and the heat exchange between the battery and the phase-change material is realized through the first heat conduction pipe 17 by the battery cooling liquid; the heat exchange between the motor and the phase-change material is realized through the second heat conduction pipe 18, meanwhile, the waste heat of the motor can be stored, the battery is heated at low temperature, the power consumption of the whole heat management system can be effectively reduced, and the driving range of the electric automobile is improved.
The utility model discloses thermal management principle of thermal management system when different operating modes as follows:
the heat dissipation working condition is as follows: under conventional operating mode, battery coolant liquid circulates through first water pump 3 and enters into battery water-cooling board 1 after, takes place heat exchange, coolant liquid temperature risees, then open second valve 5 on the phase change radiator branch road, battery coolant liquid gets into first heat pipe 17 in the phase change radiator 7, carry out heat exchange with the phase change layer that comprises phase change material, phase change material heat absorption reduces coolant liquid temperature, coolant liquid after the temperature reduction is again through first water pump 3 entering battery water-cooling board, so reciprocal, realize the heat dissipation to the battery.
Under the high temperature operating mode, phase change material is in the state of melting after exerting its phase transition absorptive maximum ability, and battery temperature continues to rise, at this moment, opens first valve 2 on the first cooler branch road, utilizes first cooler 4 further to dispel the heat to the battery, and effective control battery temperature rises fast.
The third valve 6 is opened when the cooling liquid is not cooled and heated, so that the cooling liquid is ensured to be in a circulating state.
And (3) low-temperature working condition: the heat stored in the phase-change material can be released and exchanges heat with the battery cooling liquid, and the battery is heated after the cooling liquid enters the battery water-cooling plate 1. Meanwhile, the motor 13 and the motor controller 14 always generate waste heat in the running process, heat is transferred to the phase-change material through the motor cooling liquid, the phase-change material can serve as a medium to transfer the heat of the motor to the battery, the battery is heated, the energy consumption of a whole vehicle heat management system can be effectively reduced, and the driving range of the electric vehicle is increased.
The above are only embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (9)
1. A phase change heat sink, its characterized in that: including casing (15), pack in inside phase change layer (16) of casing, be equipped with two heat pipes in phase change layer (16), the heat pipe includes feed liquor pipe (19), first current concentration box (21), second current concentration box (22) and drain pipe (20), the one end of feed liquor pipe (19) and drain pipe (20) all extends to casing (15) outside, first current concentration box (21) of feed liquor pipe (19) other end intercommunication, drain pipe (20) other end intercommunication second current concentration box (22), shunt tubes (23) through a plurality of parallel arrangement between first current concentration box (21) and the second current concentration box (22) communicate.
2. The phase change heat sink of claim 1, wherein: the heat conduction pipe further comprises a plurality of heat conduction sheets (24), the plurality of heat conduction sheets (24) are arranged in parallel at intervals, and the plurality of shunt pipes (23) vertically penetrate through the plurality of heat conduction sheets (24).
3. The phase change heat sink according to claim 1, wherein: the shunt pipe (23) is of a straight pipe structure.
4. The phase change heat sink of claim 1, wherein: the shunt pipe (23) is of an elbow structure.
5. The phase change heat sink of claim 1, wherein: one end of the liquid inlet pipe (19) and one end of the liquid outlet pipe (20) extend out of the shell (15) from two adjacent side surfaces of the shell respectively.
6. The phase change heat sink according to claim 1, wherein: one end of the liquid inlet pipe (19) and one end of the liquid outlet pipe (20) respectively extend out of the shell (15) from two opposite side surfaces of the shell.
7. An integrated battery thermal management system, comprising: the phase change heat radiator comprises a battery thermal management circulation loop and a motor thermal management circulation loop, wherein the phase change heat radiator is arranged in the battery thermal management circulation loop and the motor thermal management circulation loop, and the phase change heat radiator is arranged in any one of claims 1 to 6.
8. The integrated battery thermal management system of claim 7, wherein: the battery heat management circulation loop comprises a first water pump (3), a first cooler (4), a battery water cooling plate (1), a first valve (2), a second valve (5) and a phase change radiator (7), wherein first heat conduction pipes in the first water pump (3), the battery water cooling plate (1), the second valve (5) and the phase change radiator (7) are sequentially connected to form a closed loop, one end of the first valve (2) is connected between the battery water cooling plate (1) and the second valve (5), the other end of the first valve is connected with one end of the first cooler (4), and the other end of the first cooler (4) is connected between the first water pump (3) and the phase change radiator (7).
9. The integrated battery thermal management system of claim 7, wherein: the motor heat management circulation loop comprises a second water pump (12), a second cooler (11), a motor (13), a motor controller (14), a fourth valve (8), a fifth valve (9) and a phase change radiator (7), wherein second heat conducting pipes of the second water pump (12), the motor (13), the motor controller (14), the fourth valve (8) and the phase change radiator (7) are sequentially connected to form a closed loop, one end of the fifth valve (9) is connected between the motor controller (14) and the fourth valve (8), the other end of the fifth valve is connected with one end of the second cooler (11), and the other end of the second cooler (11) is connected between the second water pump (12) and the phase change radiator (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221442111.4U CN217641525U (en) | 2022-06-07 | 2022-06-07 | Phase change radiator and integrated battery thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221442111.4U CN217641525U (en) | 2022-06-07 | 2022-06-07 | Phase change radiator and integrated battery thermal management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641525U true CN217641525U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221442111.4U Active CN217641525U (en) | 2022-06-07 | 2022-06-07 | Phase change radiator and integrated battery thermal management system |
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| Country | Link |
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| CN (1) | CN217641525U (en) |
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2022
- 2022-06-07 CN CN202221442111.4U patent/CN217641525U/en active Active
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