CN219800983U - Power battery thermal management system - Google Patents
Power battery thermal management system Download PDFInfo
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- CN219800983U CN219800983U CN202223497206.9U CN202223497206U CN219800983U CN 219800983 U CN219800983 U CN 219800983U CN 202223497206 U CN202223497206 U CN 202223497206U CN 219800983 U CN219800983 U CN 219800983U
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- Prior art keywords
- power battery
- pipeline
- management system
- liquid circulation
- thermal management
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000000110 cooling liquid Substances 0.000 claims abstract description 38
- 230000005676 thermoelectric effect Effects 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims 3
- 238000001802 infusion Methods 0.000 claims 3
- 238000001816 cooling Methods 0.000 abstract description 13
- 230000001502 supplementing effect Effects 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 230000005679 Peltier effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- Secondary Cells (AREA)
Abstract
The utility model provides a power battery, a thermoelectric effect refrigerator and a resistance wire heater of a power battery thermal management system, which are sequentially and circularly communicated and installed through a cooling liquid circulation pipeline, wherein an electronic water pump is installed on the cooling liquid circulation pipeline; the power battery temperature control device has the advantages that the power battery temperature control device is used for controlling the temperature of the power battery in real time by improving the cooling mode and adding the power battery preheating function and the controller assembly, so that the power battery works in a reasonable temperature range, the stability of the power battery performance is further ensured, and the normal work of a crane is ensured.
Description
Technical Field
The utility model relates to a power battery thermal management system of a new energy crane, in particular to a power battery thermal management system.
Background
With the continuous progress of the technology, the crane is gradually developed towards the direction of electric and hybrid, and in the process, the power battery is gradually applied to the crane. The power battery has higher temperature requirement in the use process, and the over-high temperature or the over-low temperature can influence the performance, the capacity and the like of the battery, so that the power battery is irreversibly damaged, and the service life of the battery is reduced. The working temperature of the power battery is managed, so that the power battery works within a reasonable temperature range, the stability of the power battery is further ensured, and the normal work of the crane is ensured.
The main emphasis of the temperature management technology of the existing power battery is to cool the power battery, and the cooling mode mainly adopts an air cooling mode and a mode of additionally installing a heat-conducting silica gel gasket for cooling; the air cooling technology utilizes natural wind or a fan and dissipates heat of the power battery by means of a ventilation air duct on the battery pack structure of the power battery. The technology of adding the heat conduction silica gel gasket is to utilize the high heat conduction of the silica gel gasket to conduct the heat generated by the power battery to the metal shell of the power battery so as to radiate the power battery; the power battery is heated mainly by the resistance heating existing after the power battery works, so that the power battery is heated.
The cooling technology of the power battery in the prior art has the problems of low cooling speed, low efficiency and the like; in the prior art, the power battery heating technology needs to slowly heat the power battery in the working process, and when the environmental temperature is too low, the power battery cannot work directly, so that the crane cannot be started normally.
Disclosure of Invention
The utility model provides a battery thermal management system for a crane, which aims at solving the problems that the cooling speed is low, the efficiency is low, and the power battery cannot be preheated before starting in the current power battery cooling technology.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme: a power battery thermal management system, comprising:
a power battery, a device for providing energy for the power equipment to work;
the expansion water tank is positioned at the highest point of the whole power battery thermal management system; the cooling liquid is stored in the cooling liquid storage device, is used for buffering the volume change of the cooling liquid during expansion and contraction, and is used for supplementing the cooling liquid in the system;
a thermoelectric effect refrigerator for refrigerating by utilizing the Peltier effect of the electrified semiconductor material;
an electronic water pump for circularly conveying the cooling liquid in the cooling liquid circulation pipeline after being electrified;
a resistance wire heater for heating by using the heat effect of current passing through the resistor;
the power battery, the thermoelectric effect refrigerator and the resistance wire heater are sequentially installed in a circulating mode through a cooling liquid circulating pipeline, an electronic water pump is installed on the cooling liquid circulating pipeline, a liquid circulating pipeline at the outlet end of the power battery is communicated with a liquid supplementing pipeline and is communicated with the outlet end of the liquid supplementing pipeline, the inlet end of the liquid supplementing pipeline is communicated with the outlet end of an expansion water tank, an exhaust pipeline is communicated between the inlet end of the expansion water tank and the liquid circulating pipeline, and the exhaust pipeline is used for guiding gas in the cooling liquid circulating pipeline to the expansion water tank.
Further, the intelligent cooling system further comprises a power battery water outlet pipe and a power battery water inlet pipe, wherein the power batteries are arranged into a plurality of groups, the outlet end of each power battery is communicated with the cooling liquid circulation pipeline through the power battery water outlet pipe, and the inlet end of each power battery is communicated with the cooling liquid circulation pipeline through the power battery water inlet pipe.
Further, the expansion tank is provided with a liquid level sensor, the power battery is provided with a battery temperature sensor, and the controller assembly is respectively and electrically connected with the liquid level sensor and the battery temperature sensor.
Further, a fan is arranged on the thermoelectric effect refrigerator and is used for blowing heat conducted out of the thermoelectric effect refrigerator to the outside of the crane.
Further, the controller assembly is electrically connected with the thermoelectric effect refrigerator, the fan, the electronic water pump and the resistance wire heater respectively.
In summary, the utility model provides a power battery thermal management system, which realizes the real-time control of the temperature of the power battery by improving a cooling mode, adding a power battery preheating function and a controller assembly, so that the power battery works in a reasonable temperature range, further the stable performance of the power battery is ensured, and the normal work of a crane is ensured.
Drawings
FIG. 1 is a schematic diagram of a power cell thermal management system of the present utility model;
in the figure: 1-a power battery; 2-a cooling liquid circulation pipeline; 3-an exhaust pipeline; 4-a fluid supplementing pipeline; 5-an expansion tank; 6-a liquid level sensor; 7-thermoelectric effect refrigerator; 8, a fan; 9-an electronic water pump; 10-a resistance wire heater; 11-a battery temperature sensor; 12-a controller assembly; 13-a power battery water inlet pipe; 14-a power battery water outlet pipe.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1, a power battery thermal management system includes: a power battery 1, a device for providing energy for the power equipment to work; an expansion tank 5 located at the highest point of the entire power battery thermal management system; the cooling liquid is stored in the cooling liquid storage device, is used for buffering the volume change of the cooling liquid during expansion and contraction, and is used for supplementing the cooling liquid in the system; a thermoelectric effect refrigerator 7 for refrigerating by the peltier effect of the energized semiconductor material; an electronic water pump 9 for circulating and conveying the cooling liquid in the cooling liquid circulation pipeline 2 after being electrified; a resistance wire heater 10 for heating by using a thermal effect of a current passing through the resistor;
the power battery 1, the thermoelectric effect refrigerator 7 and the resistance wire heater 10 are sequentially installed in a circulating mode through the cooling liquid circulating pipeline 2, an electronic water pump 9 is installed on the cooling liquid circulating pipeline 2, the liquid circulating pipeline 2 at the outlet end of the power battery 1 is communicated with the liquid supplementing pipeline 4 and is communicated with the outlet end of the liquid supplementing pipeline 4, the inlet end of the liquid supplementing pipeline 4 is communicated with the outlet end of the expansion water tank 5, cooling liquid in the expansion water tank 5 is guided into the cooling liquid circulating pipeline 2 after the exhaust pipeline 3 through the liquid supplementing pipeline 4, an exhaust pipeline 3 is communicated between the inlet end of the expansion water tank 5 and the liquid circulating pipeline 2, and the exhaust pipeline 3 is used for guiding gas in the cooling liquid circulating pipeline 2 to the expansion water tank 5.
Further, the outlet end of the power battery 1 is provided with a power battery water outlet pipe 14 communicated with the cooling liquid circulation pipeline 2, the inlet end is provided with a power battery water inlet pipe 13 communicated with the cooling liquid circulation pipeline 2, the power battery 1 liquid pipeline covered by the power battery 1 is assembled with the power battery water inlet pipe 13 through the power battery water outlet pipe 14 to collect liquid and liquid, and the power battery water outlet pipe 14, the power battery water inlet pipe 13 and the cooling liquid circulation pipeline 2 are used for improving the temperature control management of the power battery 1.
Further, the power battery cooling and heating system further comprises a controller assembly 12, a liquid level sensor 6 is arranged on the expansion water tank 5 and used for transmitting liquid level information in the expansion water tank 5 into the controller assembly 12, a battery temperature sensor 11 is arranged on the power battery 1, the battery temperature sensor 11 is used for transmitting temperature information of the power battery 1 into the controller assembly 12, the controller assembly 12 is electrically connected with the liquid level sensor 6 and the battery temperature sensor 11 respectively, and the controller assembly 12 determines whether the power battery 1 enters a cooling or heating mode according to the information transmitted by the battery temperature sensor 11 and the liquid level sensor 6.
Further, a fan 8 is arranged on the thermoelectric effect refrigerator 7, and the fan 8 is used for blowing heat conducted by the thermoelectric effect refrigerator 7 to the outside of the crane.
Further, the model of the controller assembly 12 is preferably CSCALE, the controller assembly 12 is electrically connected with the thermoelectric effect refrigerator 7, the fan 8, the electronic water pump 9 and the resistance wire heater 10 respectively, and the controller assembly 12 controls each module to start and run according to the transmitted current state information of the resistance wire heater 10, the electronic water pump 9, the thermoelectric effect refrigerator 7 and the fan 8, so that the power battery 1 enters a refrigerating or heating mode.
The power battery thermal management system of the utility model is used in the following modes: when the controller assembly 12 determines that the power battery 1 needs to enter a refrigeration mode according to the sensor information and the states of all the module components, the thermoelectric effect refrigerator 7 is started to cool the cooling liquid in the cooling liquid circulation pipeline 2, the fan 8 blows heat generated at the moment out of the crane, the electronic water pump 9 is started to convey the cooling liquid cooled by the thermoelectric effect refrigerator 7 into the power battery 1 to cool the power battery 1, and the resistance wire heater 10 does not work at the moment. The controller assembly 12 receives the information transmitted by the battery temperature sensor 11 in real time, and turns off the thermoelectric effect refrigerator 7, the fan 8 and the electronic water pump 9 when the temperature of the power battery 1 reaches a set value.
When the controller assembly 12 determines that the power battery 1 needs to enter a heating mode according to the sensor information and the states of all the components, the resistance wire heater 10 is started, the cooling liquid in the cooling liquid circulation pipeline 2 is heated, the electronic water pump 9 is started, the cooling liquid heated by the resistance wire heater 10 is conveyed into the power battery 1, the power battery 1 is preheated, and at the moment, the thermoelectric effect refrigerator 7 and the fan 8 do not work. The controller assembly 12 receives the information transmitted by the battery temperature sensor 11 in real time, and turns off the resistance wire heater 10 and the electronic water pump 9 when the temperature of the power battery 1 reaches a set value.
In the refrigerating and heating processes, when the controller assembly 12 receives that the liquid level information transmitted by the liquid level sensor 6 is smaller than a set value, the system alarms and stops working, and at the moment, the cooling liquid needs to be manually supplemented into the expansion water tank 5, and the system is restarted after the cooling liquid is supplemented.
Claims (5)
1. The utility model provides a power battery thermal management system, a serial communication port, including power battery (1) exit end loops through coolant liquid circulation pipeline (2) tandem connection thermoelectric effect refrigerator (7), resistance wire heater (10), power battery (1) entrance point, be located and install electronic water pump (9) on coolant liquid circulation pipeline (2), power battery (1) exit end liquid circulation pipeline (2) intercommunication has fluid infusion pipeline (4), and with fluid infusion pipeline (4) exit end intercommunication, fluid infusion pipeline (4) entrance point communicates the exit end of expansion tank (5), communicate between the entrance point of expansion tank (5) and liquid circulation pipeline (2) has exhaust pipeline (3), exhaust pipeline (3) are arranged in guiding the gas in coolant liquid circulation pipeline (2) to expansion tank (5).
2. The power battery thermal management system according to claim 1, further comprising a power battery water outlet pipe (14) and a power battery water inlet pipe (13), wherein the power batteries (1) are arranged into a plurality of groups, the outlet end of each power battery (1) is communicated with the cooling liquid circulation pipeline (2) through the power battery water outlet pipe (14), and the inlet end of each power battery (1) is communicated with the cooling liquid circulation pipeline (2) through the power battery water inlet pipe (13).
3. The power battery thermal management system according to claim 1, further comprising a controller assembly (12), wherein the expansion tank (5) is provided with a liquid level sensor (6), the power battery (1) is provided with a battery temperature sensor (11), and the controller assembly (12) is electrically connected with the liquid level sensor (6) and the battery temperature sensor (11) respectively.
4. A power battery thermal management system according to claim 1, characterized in that the thermoelectric effect cooler (7) is provided with a fan (8), the fan (8) being arranged to blow heat conducted by the thermoelectric effect cooler (7) to the outside of the crane.
5. A power cell thermal management system according to claim 3, wherein the controller assembly (12) is electrically connected to the thermoelectric effect refrigerator (7), the blower (8), the electronic water pump (9), and the resistance wire heater (10), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497206.9U CN219800983U (en) | 2022-12-27 | 2022-12-27 | Power battery thermal management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223497206.9U CN219800983U (en) | 2022-12-27 | 2022-12-27 | Power battery thermal management system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219800983U true CN219800983U (en) | 2023-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223497206.9U Active CN219800983U (en) | 2022-12-27 | 2022-12-27 | Power battery thermal management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119674318A (en) * | 2024-12-03 | 2025-03-21 | 威海克莱特菲尔风机股份有限公司 | A liquid cooling pipeline system and design method thereof |
-
2022
- 2022-12-27 CN CN202223497206.9U patent/CN219800983U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119674318A (en) * | 2024-12-03 | 2025-03-21 | 威海克莱特菲尔风机股份有限公司 | A liquid cooling pipeline system and design method thereof |
| CN119674318B (en) * | 2024-12-03 | 2025-09-19 | 威海克莱特菲尔风机股份有限公司 | Liquid cooling pipeline system and design method thereof |
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