CN210607533U - Vehicle battery pack refrigerant direct cooling heat dissipation and heating device - Google Patents
Vehicle battery pack refrigerant direct cooling heat dissipation and heating device Download PDFInfo
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- CN210607533U CN210607533U CN201921607209.9U CN201921607209U CN210607533U CN 210607533 U CN210607533 U CN 210607533U CN 201921607209 U CN201921607209 U CN 201921607209U CN 210607533 U CN210607533 U CN 210607533U
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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 vehicle battery pack refrigerant direct cooling heat dissipation and heating device; the device comprises two electronic circulation valves, a collecting pipe, a cooling pipe, a temperature control system and the like; the temperature control system comprises a controller, a temperature sensor, a PTC heater, a liquid temperature sensor and the like; the PTC heaters are positioned in the cooling circulation loop and are orderly arranged among the cooling pipes; the battery pack controller detects the temperature signal of the battery pack through each sensor and sends the temperature signal to the battery pack controller, the battery pack controller judges whether the battery pack controller is located in a proper temperature interval, an internal control instruction is read to start the PTC heater to increase the temperature of the battery pack or reduce the temperature of the battery pack through a refrigerant direct cooling heat dissipation system, and the vehicle battery pack is guaranteed to be always located in the proper temperature interval, so that the working efficiency of a vehicle battery system is improved.
Description
Technical Field
The utility model relates to a vehicle battery group heat management field especially relates to a vehicle battery group refrigerant directly cools heat dissipation and heating device.
Background
The battery pack of the electric automobile can normally and efficiently work at a proper temperature, and the cycle charge-discharge efficiency, the service life and other performances of the battery pack can be influenced by overhigh or overlow temperature. The battery pack can generate a large amount of heat in the charging and discharging processes, and a cooling device is generally installed on the battery pack; meanwhile, the performance of the battery can be reduced when the temperature is too low, and the battery can not work normally when the temperature is serious, so that a heating device needs to be additionally arranged, and the heating device and the battery are matched with each other to enable the battery pack to work in a normal temperature range.
In the prior art, heating and radiating devices generally exist independently, the heating device adopts a heating sheet to generate heat, and the radiating device adopts a water-cooled type or an air-cooled type.
The air-cooled heat dissipation efficiency is limited, and the application is gradually reduced.
The water-cooled battery pack generally comprises a heat exchanger, a water channel circulating system, a high energy consumption, and large weight and volume of each component, which is not favorable for light weight of the battery pack.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's shortcoming and not enough, provide a vehicle battery group refrigerant directly cools off heat dissipation and heating device. The device is skillfully and organically combined with the existing vehicle refrigerating unit, and under the condition of keeping the normal operation of the existing vehicle refrigerating unit, the heat management performance of the battery pack is greatly improved and optimized; the battery pack is favorable for light weight requirements of the battery pack, the structural layout is simplified, and the resource integration degree is greatly improved.
The utility model discloses a following technical scheme realizes:
a vehicle battery pack refrigerant direct cooling heat dissipation and heating device comprises a battery pack circulation loop device and a temperature control system, wherein the battery pack circulation loop device and the temperature control system are arranged around a battery module 1; the battery pack circulation loop device is connected in parallel at two ends of an evaporator of the automobile air-conditioning refrigerating unit; the battery pack circulation loop device comprises a first electronic circulation valve 2, a collecting pipe 3, a cooling pipe 4 and a second electronic circulation valve 5;
the temperature control system comprises: the battery pack temperature controller, the battery pack temperature sensor, the PTC heater 6, the PTC temperature sensor and the liquid temperature sensor;
the collecting pipe 3 is divided into an upper collecting pipe and a lower collecting pipe which are respectively connected in parallel at the refrigerant inlet/outlet end of the evaporator; the upper collecting pipe and the lower collecting pipe are positioned outside the battery pack; a plurality of cooling pipes 4 are communicated in parallel between the upper collecting pipe and the lower collecting pipe, and the pipe body of each cooling pipe 4 is respectively attached between each battery monomer in the battery pack;
the PTC heaters 6 are distributed among the battery monomers; the plurality of PTC temperature sensors are arranged around each PTC heater 6 and used for collecting temperature signals around the PTC heaters in real time;
the number of the first electronic circulation valves 2 is four, and the first electronic circulation valves are respectively arranged at the inlet ends and the outlet ends of the upper collecting pipe and the lower collecting pipe and are used for controlling the flow and the speed of a cooling medium in the collecting pipe 3; the plurality of second electronic circulation valves 5 are provided at the upper end or the lower end of each cooling pipe 4.
The second electronic circulation valve 5, the battery pack temperature sensor, the PTC heater 6, the liquid temperature sensor and the first electronic circulation valve 2 are respectively electrically connected with a battery pack temperature controller.
The battery pack temperature sensors are distributed on the outer wall of the battery pack; the liquid temperature sensors are multiple and distributed on the outer wall of the pipe body of the cooling pipes 4.
The outer wall of the tube body distributed on the plurality of cooling tubes 4 is distributed on the outer wall of all or part of the cooling tubes 4.
The battery pack temperature sensor transmits the temperature information of each local part of the battery pack acquired in real time to the battery pack temperature controller, and when the temperature of the battery pack is in a set proper temperature interval, the four first electronic circulation valves 2 are all in a closed state at the moment, and the PTC heater 6 is in a power-off state;
when the temperature information transmitted to the battery pack temperature controller by the battery pack temperature sensor is lower than the proper temperature range, the battery pack temperature controller turns on the PTC heater 6, the heat generated by the PTC heater 6 is conducted to the battery pack through the heat transfer glue, so that the temperature of the battery pack gradually rises, and when the temperature information fed back to the battery pack temperature controller by the PTC temperature sensor is in the preset proper temperature range, the battery pack temperature controller turns off the PTC heater 6, so that the battery pack stops being heated;
when the temperature information transmitted to the battery pack temperature controller by the battery pack temperature sensor is higher than an appropriate temperature range, the battery pack temperature controller starts the automobile air-conditioning refrigerating unit to start refrigeration, at the moment, the battery pack temperature controller opens the first electronic circulation valve 2, so that a refrigerant passes through a collecting pipe 3 and a cooling pipe 4 of the battery pack circulation loop device, the cooling pipe 4 takes away heat generated by the battery pack, and finally the refrigerant flows back to the automobile air-conditioning refrigerating unit to finish direct cooling circulation of the battery pack refrigerant; meanwhile, the battery pack temperature sensor still feeds back a battery pack temperature signal to the battery pack temperature controller in real time, the battery pack temperature controller compares the temperature change rate, and if the temperature is in a gradually decreasing trend, the current situation is kept until the temperature of the battery pack is reduced to a proper temperature interval; if the temperature reduction speed is lower than the preset speed or the temperature is in an increasing trend, the temperature controller of the battery pack adjusts the opening degree of the second electronic circulation valve 5 to increase the refrigerant circulation and improve the heat dissipation rate until the temperature of the battery pack is reduced to a set proper temperature interval.
Compared with the prior art, the utility model, following advantage and effect have:
the utility model discloses for traditional liquid cooling system, reduced liquid cooling energy memory, heat transfer device.
The utility model discloses the cold and hot source comes from the vehicle and takes refrigerating unit certainly. The utility model discloses a connect in parallel at the upper and lower pressure manifold of the income/exit end of evaporimeter refrigerant to and the organic integration of sensor parts such as electron circulation valve. The integration not only preserves the working performance of the original vehicle refrigeration unit, but also solves the purpose of heating or cooling the vehicle battery pack. Under the condition of limited space of the vehicle, the structural integration has positive application value. The heat generated by the battery pack is taken away through the cooling pipe and finally flows back to the automobile air-conditioning refrigerating unit to complete the direct cooling circulation of the battery pack refrigerant; meanwhile, the battery pack temperature sensor still feeds back a battery pack temperature signal to the battery pack temperature controller in real time, the battery pack temperature controller compares the temperature change rate, and if the temperature is in a gradually decreasing trend, the current situation is kept until the temperature of the battery pack is reduced to a proper temperature interval; if the temperature reduction speed is lower than the preset speed or the temperature is in an increasing trend, the temperature controller of the battery pack adjusts the opening degree of the second electronic circulation valve to increase the refrigerant circulation and improve the heat dissipation rate until the temperature of the battery pack is reduced to a set proper temperature interval. The utility model not only greatly improves and optimizes the heat management performance of the battery pack through the structure integration and the optimization control process;
the utility model discloses a simple accurate technological means, ingenious combine this temperature control device and vehicle refrigerating system organic, can be well with vehicle battery group temperature control in suitable range, make the work efficiency of power battery group obtain improving.
Drawings
Fig. 1 is a schematic structural diagram of the battery pack circulation loop device of the present invention.
Fig. 2 is an electrical block diagram of the temperature control system of the present invention.
Fig. 3 is a schematic diagram of the combination relationship between the battery pack circulation loop device and the existing automobile refrigeration unit.
Fig. 4 is a flow chart of the direct cooling heat dissipation and heating control process of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
Examples
As shown in fig. 1-4. The utility model discloses a vehicle battery pack refrigerant direct cooling heat dissipation and heating device, which comprises a battery pack circulation loop device and a temperature control system which are arranged around a battery module 1; the battery pack circulation loop device is connected in parallel at two ends of an evaporator of the automobile air-conditioning refrigerating unit; the battery pack circulation loop device comprises a first electronic circulation valve 2, a collecting pipe 3, a cooling pipe 4 and a second electronic circulation valve 5;
the temperature control system comprises: a battery pack temperature controller (a double-temperature double-control electronic temperature control module), a battery pack temperature sensor, a PTC heater 6 (a 12-220V constant-temperature PTC aluminum shell ceramic heater heating plate/sheet), a PTC temperature sensor and a liquid temperature sensor;
the collecting pipe 3 is divided into an upper collecting pipe and a lower collecting pipe which are respectively connected in parallel at the refrigerant inlet/outlet end of the evaporator; the upper collecting pipe and the lower collecting pipe are positioned outside the battery pack; a plurality of cooling pipes 4 are communicated in parallel between the upper collecting pipe and the lower collecting pipe, and the pipe body of each cooling pipe 4 is respectively attached between each battery monomer in the battery pack;
the PTC heaters 6 are distributed among the battery monomers; the plurality of PTC temperature sensors are arranged around each PTC heater 6 and used for collecting temperature signals around the PTC heaters in real time;
the number of the first electronic circulation valves 2 is four, and the first electronic circulation valves are respectively arranged at the inlet ends and the outlet ends of the upper collecting pipe and the lower collecting pipe and are used for controlling the flow and the speed of a cooling medium in the collecting pipe 3; the plurality of second electronic circulation valves 5 are provided at the upper end or the lower end of all the cooling pipes 4 or a part of the cooling pipes 4.
The second electronic circulation valve 5, the battery pack temperature sensor, the PTC heater 6, the liquid temperature sensor and the first electronic circulation valve 2 are respectively electrically connected with a battery pack temperature controller.
The battery pack temperature sensors are distributed on the outer wall of the battery pack; the liquid temperature sensors are multiple and distributed on the outer wall of the pipe body of the cooling pipes 4.
The utility model discloses vehicle group battery refrigerant is directly cooled heat dissipation and heating control process as follows:
the battery pack temperature sensor transmits the temperature information of each local part of the battery pack acquired in real time to the battery pack temperature controller, and when the temperature of the battery pack is in a set proper temperature interval, the four first electronic circulation valves 2 are all in a closed state at the moment, and the PTC heater 6 is in a power-off state;
when the temperature information transmitted to the battery pack temperature controller by the battery pack temperature sensor is lower than the proper temperature range, the battery pack temperature controller turns on the PTC heater 6, the heat generated by the PTC heater 6 is conducted to the battery pack through the heat transfer glue, so that the temperature of the battery pack gradually rises, and when the temperature information fed back to the battery pack temperature controller by the PTC temperature sensor is in the preset proper temperature range, the battery pack temperature controller turns off the PTC heater 6, so that the battery pack stops being heated;
when the temperature information transmitted to the battery pack temperature controller by the battery pack temperature sensor is higher than an appropriate temperature range, the battery pack temperature controller starts the automobile air-conditioning refrigerating unit to start refrigeration, at the moment, the battery pack temperature controller opens the first electronic circulation valve 2, so that a refrigerant passes through a collecting pipe 3 and a cooling pipe 4 of the battery pack circulation loop device, the refrigerant in the cooling pipe 4 takes away heat generated by the battery pack and finally flows back to the automobile air-conditioning refrigerating unit, and the direct cooling circulation of the refrigerant of the battery pack is completed; meanwhile, the battery pack temperature sensor still feeds back a battery pack temperature signal to the battery pack temperature controller in real time, the battery pack temperature controller compares the temperature change rate, and if the temperature is in a gradually decreasing trend, the current situation is kept until the temperature of the battery pack is reduced to a proper temperature interval; if the temperature reduction speed is lower than the preset speed or the temperature is in an increasing trend, the temperature controller of the battery pack adjusts the opening degree of the second electronic circulation valves 5 or opens all the second electronic circulation valves 5 to increase the refrigerant circulation and improve the heat dissipation rate until the temperature of the battery pack is reduced to be within the set proper temperature interval.
As described above, the present invention can be preferably realized.
The embodiments of the present invention are not limited by the above-mentioned embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (4)
1. A vehicle battery pack refrigerant direct cooling heat dissipation and heating device comprises a battery pack circulation loop device and a temperature control system, wherein the battery pack circulation loop device and the temperature control system are arranged around a battery module (1); the method is characterized in that: the battery pack circulation loop device is connected in parallel at two ends of an evaporator of the automobile air-conditioning refrigerating unit; the battery pack circulation loop device comprises a first electronic circulation valve (2), a collecting pipe (3), a cooling pipe (4) and a second electronic circulation valve (5);
the temperature control system comprises: the battery pack temperature controller, the battery pack temperature sensor, the PTC heater (6), the PTC temperature sensor and the liquid temperature sensor;
the collecting pipe (3) is divided into an upper collecting pipe and a lower collecting pipe, and the upper collecting pipe and the lower collecting pipe are respectively connected in parallel at the refrigerant inlet/outlet end of the evaporator; the upper collecting pipe and the lower collecting pipe are positioned outside the battery pack; a plurality of cooling pipes (4) are communicated in parallel between the upper collecting pipe and the lower collecting pipe, and the pipe body of each cooling pipe (4) is respectively attached between each battery monomer in the battery pack;
the PTC heaters (6) are distributed among the battery cells; the plurality of PTC temperature sensors are arranged around each PTC heater (6) and used for acquiring temperature signals around the PTC heaters in real time;
the number of the first electronic circulation valves (2) is four, and the four first electronic circulation valves are respectively arranged at the inlet ends and the outlet ends of the upper collecting pipe and the lower collecting pipe and are used for controlling the flow and the speed of a cooling medium in the collecting pipe (3); the second electronic circulation valves (5) are provided in plurality and are respectively provided at the upper end or the lower end of each cooling pipe (4).
2. The vehicle battery pack cooling medium direct-cooling heat dissipation and heating device of claim 1, wherein: the second electronic circulation valve (5), the battery pack temperature sensor, the PTC heater (6), the liquid temperature sensor and the first electronic circulation valve (2) are respectively and electrically connected with the battery pack temperature controller.
3. The vehicle battery pack cooling medium direct-cooling heat dissipation and heating device of claim 2, wherein: the battery pack temperature sensors are distributed on the outer wall of the battery pack; the liquid temperature sensors are multiple and distributed on the outer wall of the pipe body of the cooling pipes (4).
4. The vehicle battery pack cooling medium direct-cooling heat dissipation and heating device of claim 3, wherein: the outer wall of the pipe body distributed on the plurality of cooling pipes (4) refers to the outer wall of the pipe body distributed on all or part of the cooling pipes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921607209.9U CN210607533U (en) | 2019-09-25 | 2019-09-25 | Vehicle battery pack refrigerant direct cooling heat dissipation and heating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921607209.9U CN210607533U (en) | 2019-09-25 | 2019-09-25 | Vehicle battery pack refrigerant direct cooling heat dissipation and heating device |
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| CN210607533U true CN210607533U (en) | 2020-05-22 |
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| CN201921607209.9U Active CN210607533U (en) | 2019-09-25 | 2019-09-25 | Vehicle battery pack refrigerant direct cooling heat dissipation and heating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581330A (en) * | 2019-09-25 | 2019-12-17 | 华南理工大学 | Vehicle battery pack refrigerant direct cooling heat dissipation and heating device and temperature control method thereof |
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- 2019-09-25 CN CN201921607209.9U patent/CN210607533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110581330A (en) * | 2019-09-25 | 2019-12-17 | 华南理工大学 | Vehicle battery pack refrigerant direct cooling heat dissipation and heating device and temperature control method thereof |
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