CN217917587U - Electric drive system heat management device and pure electric vehicle - Google Patents
Electric drive system heat management device and pure electric vehicle Download PDFInfo
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- CN217917587U CN217917587U CN202222019245.1U CN202222019245U CN217917587U CN 217917587 U CN217917587 U CN 217917587U CN 202222019245 U CN202222019245 U CN 202222019245U CN 217917587 U CN217917587 U CN 217917587U
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Abstract
The utility model relates to an electricity drives system's heat management device and pure electric vehicles, the device includes: the first check valve, the second check valve, the heat dissipation module, the compensation kettle, the module to be heated, the three-way valve, the electronic water pump and the water jacket, the first check valve, the electronic water pump, the water jacket, the three-way valve and the module to be heated are sequentially connected end to form a waste heat recovery loop for heating the power battery, and the second check valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat dissipation module are sequentially connected end to form a heat dissipation loop for cooling the power supply and drive system. The device realizes waste heat recovery through two check valves, a three-way valve, avoids introducing too much water valve and water pipe way, has greatly simplified the structure of waste heat recovery return circuit, avoids taking too much front deck sky, effectively reduces the cost. Meanwhile, the waste heat recovery loop is simple, so that the circulation path of waste heat recovery can be reduced, extra energy consumption is not caused, and the energy utilization rate is effectively improved.
Description
Technical Field
The utility model relates to a pure electric vehicles technical field especially relates to an electricity drive system heat management device and pure electric vehicles.
Background
At present, two modes of forced air cooling and liquid cooling are adopted for cooling power batteries of most pure electric vehicles, wherein the forced air cooling utilizes cold air in a vehicle body to dissipate heat of the power batteries, and the liquid cooling utilizes a heat exchanger to dissipate heat and cool through heat exchange of air conditioner refrigerants and cooling liquid. However, in a low-temperature environment, the charge and discharge capacity and voltage of the power battery are both sharply reduced, and the cruising ability is affected. And the service life of the power battery can be accelerated to decay after long-time operation in a low-temperature environment.
The electric drive system is used as a core power drive system of the new energy automobile, and heat dissipation is particularly important for maintaining normal work of the new energy automobile. If the waste heat of the electric driving system is recycled for heating the power battery, the resource utilization rate can be greatly improved. The existing waste heat recovery structure of the electric drive system needs to introduce additional pipelines and water valves, and for some vehicle types with complex systems and short front cabin space, management and arrangement are difficult to achieve, and waste heat of the electric drive system is difficult to effectively recover.
Disclosure of Invention
Based on this, the utility model provides an electricity drive system's heat management device and pure electric vehicles, simple structure can effectively retrieve the waste heat of electricity drive system.
The application provides an electricity drive system thermal management device, the device includes:
the water heater comprises a first one-way valve, a second one-way valve, a heat dissipation module, a compensation kettle, a module to be heated, a three-way valve, an electronic water pump and a water jacket;
the first one-way valve, the electronic water pump, the water jacket, the three-way valve and the module to be heated are sequentially connected end to form a waste heat recovery loop for heating the power battery;
the second one-way valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat dissipation module are sequentially connected end to form a heat dissipation loop for cooling the power supply and drive system.
According to the utility model provides an in an achievable mode, it includes battery liquid cold drawing or air conditioner heating circuit to wait to heat the module.
According to the utility model discloses in the embodiment an achievable mode, first check valve, electronic water pump, water jacket, three-way valve and wait to heat the module end to end connection in proper order, include:
the first end of the first one-way valve is connected with the first end of the battery liquid cooling plate, the second end of the battery liquid cooling plate is connected with the first outlet of the three-way valve, the inlet of the three-way valve is sequentially connected with the water jacket and the electronic water pump, and the electronic water pump is connected with the second end of the first one-way valve.
According to the utility model discloses in the embodiment of an achievable mode, first check valve, electronic water pump, water jacket, three-way valve and wait to heat the module end to end connection in proper order, include:
the first end of the first one-way valve is connected with the output end of the air-conditioning heating loop, the input end of the air-conditioning heating loop is connected with the first outlet of the three-way valve, the inlet of the three-way valve is sequentially connected with the water jacket and the electronic water pump, and the electronic water pump is connected with the second end of the first one-way valve.
According to an embodiment of the present invention, in an achievable manner, the heat dissipation module includes an electronic fan and a low temperature heat sink.
According to the utility model discloses in an embodiment one kind realizable mode, second check valve, electronic pump, water jacket, three-way valve, compensation kettle and radiating module end to end connection in proper order, include:
the first end of the second one-way valve is connected with the electronic water pump and the water jacket in sequence, the water jacket is connected with the inlet of the three-way valve, and the second outlet of the three-way valve is connected with the compensation kettle and the electronic fan in sequence and connected with the second end of the second one-way valve.
According to the embodiment of the utility model provides an achievable mode, second check valve, electronic pump, water jacket, three-way valve, compensation kettle and heat radiation module end to end connection in proper order, include:
the first end of the second one-way valve is sequentially connected with the electronic water pump and the water jacket, the water jacket is connected with the inlet of the three-way valve, and the second outlet of the three-way valve is sequentially connected with the compensation kettle and the low-temperature radiator and is connected with the second end of the second one-way valve.
The present application provides a pure electric vehicle including the electric drive system thermal management device in any one of the first aspect and the first aspect.
According to the technical content provided by the embodiment of the present invention, the device includes: the first check valve, the second check valve, the heat dissipation module, the compensation kettle, the module to be heated, the three-way valve, the electronic water pump and the water jacket, the first check valve, the electronic water pump, the water jacket, the three-way valve and the module to be heated are sequentially connected end to form a waste heat recovery loop for heating the power battery, and the second check valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat dissipation module are sequentially connected end to form a heat dissipation loop for cooling the power supply and drive system. The device realizes waste heat recovery through reverse two check valves, a three-way valve that set up, avoids introducing too much water valve and water pipe way, has greatly simplified the structure of waste heat recovery return circuit, avoids occupying too much front deck sky, effectively reduces the cost. Meanwhile, the waste heat recovery loop is simple, so that the circulation path of waste heat recovery can be reduced, extra energy consumption is not caused, and the energy utilization rate is effectively improved.
Drawings
FIG. 1 is a schematic illustration of a thermal management device for an electric drive system according to one embodiment;
FIG. 2 is a schematic diagram of the water circuit in the heat dissipation loop in one embodiment;
FIG. 3 is a schematic diagram of the water circuit in the waste heat recovery circuit in one embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram illustrating an electric drive system thermal management device according to an embodiment of the present invention. As shown in fig. 1, an electric drive system thermal management device 100 includes: the water heater comprises a first one-way valve 110, a second one-way valve 120, a heat dissipation module 130, a compensation kettle 140, a module to be heated 150, a three-way valve 160, an electronic water pump 170 and a water jacket 180. The heat dissipation module 130 includes an electronic fan 131 and a low-temperature heat sink 132, and the module 150 to be heated may be a battery liquid cold plate or an air conditioning heating loop.
The first one-way valve 110, the electronic water pump 170, the water jacket 180, the three-way valve 160 and the module 150 to be heated are sequentially connected end to form a waste heat recovery loop for heating the power battery. The second one-way valve 120, the electronic water pump 170, the water jacket 180, the three-way valve 160, the compensation kettle 140 and the heat dissipation module 130 are sequentially connected end to form a heat dissipation loop for cooling the electric drive system.
When the module 150 to be heated is a battery liquid cooling plate, the first end of the first check valve 110 is connected to the first end of the battery liquid cooling plate, the second end of the battery liquid cooling plate is connected to the first outlet of the three-way valve 160, the inlet of the three-way valve 160 is sequentially connected to the water jacket 180 and the electronic water pump 170, and the electronic water pump 170 is connected to the second end of the first check valve 110.
When the module 150 to be heated is an air-conditioning heating loop, the first end of the first check valve 110 is connected to the output end of the air-conditioning heating loop, the input end of the air-conditioning heating loop is connected to the first outlet of the three-way valve 160, the inlet of the three-way valve 160 is sequentially connected to the water jacket 180 and the electronic water pump 170, and the electronic water pump 170 is connected to the second end of the first check valve 110.
The first end of the second one-way valve 120 is connected with the electronic water pump 170 and the water jacket 180 in sequence, the water jacket 180 is connected with the inlet of the three-way valve 160, and the second outlet of the three-way valve 160 is connected with the compensation kettle 180 and the electronic fan 131 in sequence and connected with the second end of the second one-way valve 120.
The first end of the second one-way valve 120 is connected with the electronic water pump 170 and the water jacket 180 in sequence, the water jacket 180 is connected with the inlet of the three-way valve 160, and the second outlet of the three-way valve 160 is connected with the compensation kettle 180 and the low-temperature radiator 132 in sequence and connected with the second end of the second one-way valve 120.
As shown in fig. 1, the first end of the first check valve 110 is an a-end, and the second end is a b-end. The inlet of the three-way valve 160 is port 1, the first outlet is port 2, and the second outlet is port 3.
The a end of the first check valve 110 is connected with the port 2 of the three-way valve 160 through the module 150 to be heated, the port 1 of the three-way valve 160 is connected with the water jacket 180 and the electronic water pump 170 in sequence, and the electronic water pump is connected with the b end of the first check valve.
The first end of the second check valve 120 is a b-end, and the second end is an a-end. The b end of the second one-way valve 120 is connected with the electronic water pump 170 and the water jacket 180 in sequence, the water jacket 180 is connected with the port 1 of the three-way valve 160, and the port 3 of the three-way valve 160 is connected with the compensation kettle 140 and the heat dissipation module 130 in sequence and connected with the a end of the second one-way valve 120.
The direction from the a end to the b end of the first check valve 110 is the on direction of the first check valve 110, and the direction from the b end to the a end is the off direction of the first check valve 110.
The direction from the end a to the end b of the second check valve 120 is the cut-off direction, and the direction from the end b to the end a is the conduction direction.
After the vehicle is started, the electric drive system is operated and the three-way valve 160 is closed by default to the radiator circuit. When the temperature of the electric drive system component is detected to be greater than the preset temperature threshold value, the electronic water pump 170 and the electronic fan 131 in the heat dissipation module 130 are controlled to operate. As shown in fig. 2, the water path of the heat dissipation loop circulates clockwise, the second check valve 120 is turned on, the first check valve 110 is turned off, and the hot water flows into the low temperature heat sink 132 of the heat dissipation module 130 for heat dissipation.
When the temperature of the battery cell is detected to be low, heating is needed, and when the temperature of the electric drive system is detected to reach the preset required temperature, the three-way valve 160 is controlled to switch the port 1 and the port 2 to the waste heat recovery loop. As shown in fig. 3, the water flow of the heat recovery circuit circulates counterclockwise, the first check valve 110 is turned on, the second check valve 120 is turned off, and the hot water flows into the module to be heated 150 to heat the module. When the module 150 to be heated has no heating requirement, the port 1 and the port 3 can be switched to the heat dissipation loop by controlling the three-way valve 160, and the electric drive system heat dissipation mode is entered.
This electricity drives system heat management device realizes waste heat recovery through two check valves, a three-way valve, avoids introducing too much water valve and water pipe way, has greatly simplified the structure of waste heat recovery return circuit, avoids occupying too much front deck sky, effectively reduces the cost. Meanwhile, the waste heat recovery loop is simple, so that the circulation path of waste heat recovery can be reduced, extra energy consumption is not caused, and the energy utilization rate is effectively improved.
Illustratively, the required temperature for heating the power battery is preset to be 40 ℃, the optimum temperature for operating the battery core of the power battery is 20-30 ℃, the temperature threshold of the electric drive system component is 55 ℃, and cooling is needed when the temperature of the electric drive system component exceeds 55 ℃.
And starting the vehicle under a low-temperature environment (the ambient temperature is less than 0 ℃), enabling the electric drive system to work, and controlling the electronic water pump 170 and the electronic fan 131 in the heat dissipation module 130 to work when the temperature of the parts of the electric drive system is detected to be more than 55 ℃. At this time, the second check valve 120 is turned on, the first check valve 110 is turned off, and the hot water flows into the low temperature radiator 132 of the heat dissipation module 130 to dissipate heat.
When the temperature of the battery cell is detected to be low, heating is needed, and when the temperature of the electric drive system is detected to reach 40 ℃, the three-way valve 160 is controlled to be communicated with the port 1 and the port 2 to be switched to the waste heat recovery loop. At this time, the first check valve 110 is turned on, the second check valve 120 is turned off, and hot water flows into the battery liquid cooling plate 150 to heat the power battery.
When the temperature of the electric core of the power battery reaches 20-30 ℃, the port 1 and the port 3 can be switched to a heat dissipation loop through the control three-way valve 160, and an electric drive system heat dissipation mode is entered.
The control heat management device of the electric driving system structurally utilizes two one-way valves to realize mechanical interlocking according to the one-way conductivity of the one-way valves, only one three-way valve is needed to be controlled, and the waste heat of the electric driving system can be effectively recovered.
The embodiment provides a pure electric vehicle which comprises the electric drive system heat management device.
Compared with the prior art, the utility model provides a pure electric vehicles's beneficial effect is the same with the beneficial effect that the electric drive system heat management device that above-mentioned technical scheme provided reached, does not do here and describe repeatedly.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An electric drive system thermal management device, the device comprising: the device comprises a first one-way valve, a second one-way valve, a heat dissipation module, a compensation kettle, a module to be heated, a three-way valve, an electronic water pump and a water jacket;
the first one-way valve, the electronic water pump, the water jacket, the three-way valve and the module to be heated are sequentially connected end to form a waste heat recovery loop for heating the power battery;
the second one-way valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat dissipation module are sequentially connected end to form a heat dissipation loop for cooling the electric drive system.
2. The apparatus of claim 1, wherein the module to be heated comprises a battery liquid cold plate or an air conditioning heating loop.
3. The device of claim 2, wherein the first one-way valve, the electric water pump, the water jacket, the three-way valve and the module to be heated are connected end to end in sequence, and the device comprises:
the first end of the first one-way valve is connected with the first end of the battery liquid cooling plate, the second end of the battery liquid cooling plate is connected with the first outlet of the three-way valve, the inlet of the three-way valve is sequentially connected with the water jacket and the electronic water pump, and the electronic water pump is connected with the second end of the first one-way valve.
4. The device of claim 2, wherein the first one-way valve, the electric water pump, the water jacket, the three-way valve and the module to be heated are connected end to end in sequence, and the device comprises:
the first end of the first one-way valve is connected with the output end of the air-conditioning heating loop, the input end of the air-conditioning heating loop is connected with the first outlet of the three-way valve, the inlet of the three-way valve is sequentially connected with the water jacket and the electronic water pump, and the electronic water pump is connected with the second end of the first one-way valve.
5. The apparatus of claim 1, wherein the heat dissipation module comprises an electronic fan and a low temperature heat sink.
6. The apparatus of claim 5, wherein the second one-way valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat dissipation module are sequentially connected end to end, and the apparatus comprises:
the first end of the second one-way valve is sequentially connected with the electronic water pump and the water jacket, the water jacket is connected with the inlet of the three-way valve, and the second outlet of the three-way valve is sequentially connected with the compensation kettle and the low-temperature radiator and is connected with the second end of the second one-way valve.
7. The apparatus of claim 6, wherein the second one-way valve, the electronic water pump, the water jacket, the three-way valve, the compensation kettle and the heat sink module are sequentially connected end to end, and comprise:
the first end of the second one-way valve is sequentially connected with the electronic water pump and the water jacket, the water jacket is connected with the inlet of the three-way valve, and the second outlet of the three-way valve is sequentially connected with the compensation kettle and the electronic fan and is connected with the second end of the second one-way valve.
8. A pure electric vehicle comprising an electric drive system thermal management device according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019245.1U CN217917587U (en) | 2022-08-02 | 2022-08-02 | Electric drive system heat management device and pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222019245.1U CN217917587U (en) | 2022-08-02 | 2022-08-02 | Electric drive system heat management device and pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217917587U true CN217917587U (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222019245.1U Active CN217917587U (en) | 2022-08-02 | 2022-08-02 | Electric drive system heat management device and pure electric vehicle |
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| Country | Link |
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| CN (1) | CN217917587U (en) |
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2022
- 2022-08-02 CN CN202222019245.1U patent/CN217917587U/en active Active
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