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Integrated expansion kettle, heat management system and electric vehicle

A technology of thermal management system and expansion kettle, which is applied to electric vehicles, electric power devices, circuits, etc., can solve the problem of low integration of expansion kettles, and achieve the effects of saving layout space, reducing weight and improving performance.

Pending Publication Date: 2022-04-08
上海飞龙新能源汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The multi-way valve set in this patent document is a five-way solenoid valve. Although three water pumps are provided, the water pump of the heating circuit is set separately and is not integrated on the expansion kettle. Therefore, the integration degree of the expansion kettle proposed in this patent document is not high. high

Method used

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  • Integrated expansion kettle, heat management system and electric vehicle
  • Integrated expansion kettle, heat management system and electric vehicle
  • Integrated expansion kettle, heat management system and electric vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] refer to Figure 1-Figure 4 , this embodiment is used to provide an integrated expansion kettle, including a kettle body 1 , a multi-way valve 3 arranged at the bottom of the kettle body 1 , a water pump group and a channel group arranged on the casing of the kettle body 1 .

[0068] The kettle body 1 includes an upper kettle body 11 and a lower kettle body 12 , and the lower kettle body 12 is located below the upper kettle body 11 . The upper pot body 11 and the lower pot body 12 can be fixed by hot-melt welding, and in some optional embodiments, the upper pot body 11 and the lower pot body 12 can also be fixedly connected by fasteners. The top of the upper pot body 11 is provided with a filling port for filling the interior of the kettle body 1 with cooling liquid, and the filling port is provided with a pot cover 13 capable of thread sealing.

[0069] The bottom of the kettle body 1 is provided with a multi-way valve 3, and the top of the multi-way valve 3 is provid...

Embodiment 2

[0094] refer to Figure 6 , this embodiment is used to provide a thermal management system, including the integrated expansion kettle as described in Embodiment 1, a passenger compartment heating system 5 communicated with the expansion kettle, a battery thermal management system 6, and a motor electronically controlled cooling system 7, and a control module for thermal management control.

[0095] The passenger compartment heating system 5 is used to heat the passenger compartment, including a high-voltage electric heater 51 (HVH, High Voltage Heater), and a warm air core 52. The warm air core 52 is arranged at the passenger compartment, and its pipelines are arranged in sequence according to the flow direction of the coolant. It communicates with the second water pump 22 , the high-voltage electric heater 51 , the warm air core 52 and the first channel 41 .

[0096] The battery thermal management system 6 is used to heat or cool down the battery pack 61, including a battery...

Embodiment 3

[0104] refer to Figure 7 , this embodiment is used to provide a thermal management system. Compared with Embodiment 2, the expansion kettle of this embodiment adopts working mode ten, the first channel 41 communicates with the fourth channel 44, and the second channel 42 communicates with the fourth channel. The three channels 43 are in communication, and the sixth channel 46 is in communication with the seventh channel 47 .

[0105] When the second water pump 22 and the third water pump 23 are working, the second water pump 22 drives the coolant to flow out from the second channel 42 , the temperature rises after flowing through the high-voltage electric heater 51 , and flows into the cooling fluid after flowing through the warm air core 52 The first channel 41 then flows into the fourth channel 44; the third water pump 23 drives the cooling liquid to flow out from the fourth channel 44, flows through the battery cooler 62 and the battery pack 61 in sequence, flows into the ...

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Abstract

The invention provides an integrated expansion kettle, a heat management system and an electric vehicle, and belongs to the technical field of electric vehicles. The integrated expansion kettle comprises a kettle body, a multi-way valve, a channel set and a water pump set, wherein the multi-way valve is fixedly arranged at the bottom of the kettle body and partially extends into the kettle body, and the channel set and the water pump set are fixedly arranged on the kettle body. The channel set comprises seven independent channels, and the independent channels are communicated with an inner cavity of the multi-way valve and the outside of the kettle body. The water pump set comprises three water pumps, water inlets of the water pumps are directly communicated with the independent channels in a one-to-one mode, and one to two independent channels are distributed among the water pumps. The multi-way valve is used for changing the communication state of the independent channels. The length and the number of pipelines of the heat management system can be reduced, heat loss can be reduced, the performance of the heat management system is improved, and the assembly and maintenance difficulty can be reduced.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, and in particular relates to an integrated expansion kettle, a heat management system and an electric vehicle. Background technique [0002] Existing electric vehicles are equipped with three sets of coolant circulation loops for the passenger cabin, battery and motor electronic control. If the three sets of coolant circulation loops are set separately, a separate water pump and expansion kettle will be used, which not only takes up a lot of car body space, but also Moreover, the piping will be messy and complicated, resulting in difficulties in piping layout and assembly, which will affect system performance and also bring difficulties to assembly and maintenance. In this case, some integrated expansion pots have appeared, which can connect three sets of coolant circulation circuits through one expansion pot. [0003] For example, the patent document CN113733842A proposes an integrate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60H1/00B60K1/00B60K11/02B60L58/26B60L58/27H01M10/613H01M10/615H01M10/625H01M10/6556H01M10/6567H01M10/6568
CPCY02E60/10Y02T10/70
Inventor 丁卯宋宏利蔡操平
Owner 上海飞龙新能源汽车部件有限公司
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