CN214122806U - Liquid cooling test device and test system of power battery - Google Patents
Liquid cooling test device and test system of power battery Download PDFInfo
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- CN214122806U CN214122806U CN202120372280.4U CN202120372280U CN214122806U CN 214122806 U CN214122806 U CN 214122806U CN 202120372280 U CN202120372280 U CN 202120372280U CN 214122806 U CN214122806 U CN 214122806U
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Abstract
The application relates to a liquid cooling test device and a test system of a power battery. This liquid cooling test device includes: the liquid cooling input end, the liquid cooling output end and the liquid cooling pipeline; the liquid cooling pipeline is used for communicating the liquid cooling input end with the liquid cooling output end; the liquid cooling pipeline is provided with a temperature adjusting device and a flow adjusting device, the temperature adjusting device is used for adjusting the temperature of cooling liquid circulating in the liquid cooling pipeline, and the flow adjusting device is used for adjusting the flow of the cooling liquid circulating in the liquid cooling pipeline. The scheme that this application provided can be more for testing power battery's liquid cooling management system comprehensively.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a liquid cooling test device and a test system of a power battery.
Background
In the use process of the power battery, the performance and safety of the power battery are affected by too high or too low temperature, and in order to control the temperature of the power battery system not to be too high or too low, a thermal management system is required to be configured for the power battery. In the production process of the vehicle, the thermal management system needs to be tested so as to ensure that the thermal management system can realize effective temperature control on the power battery in the use process of the vehicle.
In the related art, a liquid cooling management system is generally adopted in a thermal management system of a power battery, and a test device is required to test the liquid cooling management system in a vehicle production process.
SUMMERY OF THE UTILITY MODEL
In order to solve or partially solve the problems existing in the related art, the application provides a liquid cooling test device and a test system of a power battery.
According to the utility model discloses an aspect provides a liquid cooling test device, include: the liquid cooling input end, the liquid cooling output end and the liquid cooling pipeline;
the liquid cooling pipeline is used for communicating the liquid cooling input end with the liquid cooling output end;
the liquid cooling pipeline is provided with a temperature adjusting device and a flow adjusting device, the temperature adjusting device is used for adjusting the temperature of cooling liquid circulating in the liquid cooling pipeline, and the flow adjusting device is used for adjusting the flow of the cooling liquid circulating in the liquid cooling pipeline.
In one embodiment, the cooling liquid circulation switching device is further included;
the cooling liquid circulation switching device is used for switching the cooling liquid circulating in the liquid cooling pipeline to an external circulation state or an internal circulation state.
In one embodiment, the liquid cooling conduit includes an internal circulation conduit in communication between the liquid cooling input and the liquid cooling output;
the cooling liquid circulation switching device comprises a first switch valve arranged at the liquid cooling input end, a second switch valve arranged at the liquid cooling output end and a third switch valve arranged in the inner circulation pipeline;
the first switch valve and the second switch valve are opened, and when the third switch valve is closed, the cooling liquid in the liquid cooling pipeline is switched to the external circulation state;
the first switch valve and the second switch valve are closed, and when the third switch valve is opened, the cooling liquid in the liquid cooling pipeline is switched to the internal circulation state.
In one embodiment, the liquid cooling system further comprises a liquid amount adjusting device for adjusting the capacity of the cooling liquid flowing in the liquid cooling pipe.
In one embodiment, the liquid amount adjusting device comprises a liquid storage tank communicated with the liquid cooling pipeline, and a liquid supplementing device and/or a liquid returning device communicated with the liquid storage tank;
the liquid storage tank is used for storing cooling liquid;
the liquid supplementing device is used for supplementing cooling liquid to the liquid storage tank;
the liquid return device is used for recovering the cooling liquid outside the liquid cooling pipeline to the liquid storage tank.
In one embodiment, a control system is also included;
the control system is respectively in communication connection with at least one of the temperature adjusting device, the flow adjusting device, the cooling liquid circulation switching device and the liquid amount adjusting device;
the control system is used for respectively controlling the working states of the temperature adjusting device, the flow adjusting device, the cooling liquid circulation switching device and the liquid amount adjusting device.
In one embodiment, the temperature regulating device comprises a heating device and/or a cooling device, and the heating device and the cooling device are connected with the control system in a communication way;
the control system is used for adjusting the working states of the heating device and the cooling device.
According to the utility model discloses the second aspect of the embodiment provides a power battery's test system, include as above liquid cooling test device.
In one embodiment, the testing system for power battery further includes:
the system comprises a power battery system, a temperature test box and a charge and discharge test system;
the power battery system is arranged in the temperature test box, and the temperature test box is used for configuring an adjustable temperature and humidity environment for the power battery system; the power battery system is provided with a liquid cooling management interface which is communicated with the liquid cooling output end and the liquid cooling input end of the liquid cooling test device and used for exchanging heat with the liquid cooling test device through the liquid cooling management interface;
the charging and discharging test system is provided with a power supply interface and is used for transmitting power supply with the power battery system through the power supply interface.
In one embodiment, the charging and discharging test system is in communication connection with the temperature test box, the power battery system and the liquid cooling test device respectively.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the liquid cooling test device that this application embodiment provided includes: the liquid cooling input end, the liquid cooling output end and the liquid cooling pipeline; the liquid cooling pipeline is used for communicating the liquid cooling input end with the liquid cooling output end; the liquid cooling pipeline is provided with a temperature adjusting device and a flow adjusting device, the temperature adjusting device is used for adjusting the temperature of cooling liquid circulating in the liquid cooling pipeline, and the flow adjusting device is used for adjusting the flow of the cooling liquid circulating in the liquid cooling pipeline. After the arrangement, after the cooling liquid enters the liquid cooling pipeline from the liquid cooling input end, the temperature adjusting device and the flow adjusting device can respectively adjust the temperature and the flow of the cooling liquid, so that the liquid cooling condition of the cooling liquid output by the liquid cooling output end can be controlled in real time, and further the liquid cooling management system of the power battery can be tested comprehensively.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application, as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.
FIG. 1 is a schematic structural diagram of a liquid cooling test apparatus in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a test system of a power battery in an embodiment of the present application.
Reference numerals:
10-liquid cooling test device
100-liquid cooled input
200-liquid cooled output
300-liquid cooled pipe
410-heating device
420-Cooling device
421-cooling water tower
500-flow regulating device
610-internal circulation pipe
620-first switching valve
630-second on-off valve
640-third on-off valve
710-liquid storage tank
720-fluid infusion device
730-liquid return device
800-control system
810-temperature sensor
820-flow sensor
830-pressure sensor
20-power battery test system
21-Charge/discharge test System
22-temperature test chamber
23-Power Battery System
Detailed Description
Preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It should be understood that although the terms "first," "second," "third," etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the related art, a liquid cooling management system is generally adopted in a thermal management system of a power battery, and a test device is required to test the liquid cooling management system in the vehicle production process. The application provides a liquid cooling test device, this liquid cooling test device can adjust the temperature and the flow of coolant liquid for the liquid cooling condition of the coolant liquid of output can be controllable in real time, and then can be more for testing power battery's liquid cooling management system comprehensively.
The technical solutions of the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, a liquid cooling test apparatus 10 provided in the embodiment of the present application includes: a liquid cooling input terminal 100, a liquid cooling output terminal 200, and a liquid cooling pipe 300; the liquid cooling pipeline 300 is used for communicating the liquid cooling input end 100 with the liquid cooling output end 200; wherein, be equipped with temperature regulation apparatus and flow regulator 500 on the liquid cooling pipeline 300, temperature regulation apparatus is used for adjusting the temperature of the coolant liquid that circulates in liquid cooling pipeline 300, and flow regulator 500 is used for adjusting the flow of the coolant liquid that circulates in liquid cooling pipeline 300. After the arrangement, after the cooling liquid enters the liquid cooling pipeline 300 from the liquid cooling input end 100, the temperature adjusting device and the flow adjusting device 500 can respectively adjust the temperature and the flow of the cooling liquid, so that the liquid cooling condition of the cooling liquid output by the liquid cooling output end 200 can be controlled in real time, and the liquid cooling management system of the power battery can be tested more comprehensively.
In one implementation, the cooling liquid circulation switching device is further included; the cooling liquid circulation switching device is used for switching the cooling liquid flowing in the liquid cooling pipeline 300 to an external circulation state or an internal circulation state. When the power battery system is subjected to a thermal management test, the liquid cooling input end 100 and the liquid cooling output end 200 are connected with a temperature test device such as a temperature test box provided with the power battery system, and cooling liquid is switched between an external circulation state and an internal circulation state through a cooling liquid circulation switching device, so that the thermal management control of the power battery system can be conveniently performed. In addition, in order to facilitate filtering of impurities in the liquid cooling pipe 300, the liquid cooling input terminal 100 is provided with a filter.
Further, the liquid-cooling pipe 300 includes an inner circulation pipe 610 connected between the liquid-cooling input terminal 100 and the liquid-cooling output terminal 200; the cooling liquid circulation switching device comprises a first switch valve 620 arranged at the liquid cooling input end 100, a second switch valve 630 arranged at the liquid cooling output end 200 and a third switch valve 640 arranged at the inner circulation pipeline 610; when the first switch valve 620 and the second switch valve 630 are opened and the third switch valve 640 is closed, the cooling liquid in the liquid cooling pipeline 300 is switched to the external circulation state; when the first and second switching valves 620 and 630 are closed and the third switching valve 640 is opened, the cooling fluid in the fluid cooling pipe 300 is switched to the internal circulation state.
In this embodiment, the internal circulation pipe 610 is connected between the liquid cooling input end 100 and the liquid cooling output end 200, and the first switch valve 620 and the second switch valve 630 are closed to close the liquid cooling input end 100 and the liquid cooling output end 200, and the third switch valve 640 is opened to enable the cooling liquid to circularly flow in the loop formed by the internal circulation pipe 610 and the liquid cooling pipe 300, so as to realize the internal circulation state; by opening the first switch valve 620 and the second switch valve 630 and simultaneously opening the third switch valve 640, the liquid cooling input terminal 100 and the liquid cooling output terminal 200 are conducted, and the cooling liquid can be output through the liquid cooling output terminal and input through the liquid cooling input terminal, thereby realizing the external circulation state. The first, second, and third switching valves 620, 630, and 640 may be, but are not limited to, solenoid valves.
Further, in order to adjust the capacity of the cooling liquid in the liquid-cooling duct 300, the present embodiment further includes a liquid amount adjusting device for adjusting the capacity of the cooling liquid circulating in the liquid-cooling duct 300.
Further, the liquid amount adjusting device comprises a liquid storage tank 710 communicated with the liquid cooling pipeline 300, and a liquid supplementing device and/or a liquid returning device 730 communicated with the liquid storage tank 710; the liquid storage tank 710 is used for storing cooling liquid; the liquid replenishing device is used for replenishing cooling liquid to the liquid storage tank 710; the liquid returning device 730 is used for recovering the cooling liquid outside the liquid cooling pipeline 300 to the liquid storage tank 710. That is to say, the fluid infusion device 720 is mainly responsible for adding new coolant to the fluid reservoir 710, and ensures the stability of the fluid volume in the fluid reservoir 710, and the fluid return device 730 is mainly responsible for recovering the coolant flowing out from the fluid cooling pipeline 300 to the fluid reservoir 710, thereby avoiding the waste of the coolant. In the present embodiment, the liquid returning device 730 can recycle the cooling liquid outside the liquid cooling test apparatus 10 to the liquid storage tank 710 by compressing air.
Further, the present embodiment further includes a control system 800, and the control system 800 is respectively connected in communication with at least one of the temperature adjusting device, the flow rate adjusting device 500, the cooling liquid circulation switching device, and the liquid amount adjusting device; the control system 800 is configured to control the operating states of the temperature adjusting device, the flow adjusting device 500, the cooling liquid circulation switching device, and the liquid amount adjusting device, respectively, and realize automatic control of the temperature adjusting device, the flow adjusting device 500, and the cooling liquid circulation switching device.
In this embodiment, a liquid level sensor is arranged in the liquid storage tank 710, the liquid level sensor is used for detecting the liquid level of the cooling liquid in the liquid storage tank 710, the liquid level sensor is in communication connection with the control system 800, the liquid level sensor monitors the capacity of the cooling liquid in the liquid storage tank 710 in real time, and feeds back the capacity data of the cooling liquid in the liquid storage tank 710 to the control system 800 in real time, when the control system 800 judges that the capacity of the cooling liquid in the liquid storage tank 710 is insufficient, the liquid supplementing device 720 is controlled to supplement the liquid to the liquid storage tank 710, and the liquid supplementing device 720 can supplement the cooling liquid outside the system into the liquid storage tank 710.
Further, the temperature adjusting device comprises a heating device 410 and/or a cooling device 420, and the heating device 410 and the cooling device 420 are in communication connection with the control system 800; the control system 800 is used to adjust the operating conditions of the heating device 410 and the cooling device 420. The cooling device 420 is used for cooling the cooling liquid in the liquid cooling circulation pipeline, the heating device 410 is used for heating the cooling liquid in the liquid cooling circulation pipeline, and the control system 800 controls the cooling device 420 and the heating device 410 so that the cooling liquid flowing out of the liquid cooling output end 200 has different temperatures.
The cooling power of the cooling device 420 in this embodiment can be freely adjusted within a preset range, for example, the range can be 10% -100%. The cooling device 420 can receive a refrigeration power instruction sent by the control system 800 to realize the adjustment of the refrigeration power, and the cooling device 420 can feed the refrigeration power back to the control system 800 in real time, so as to realize the free adjustment of the refrigeration of the cooling liquid. The heating power of the heating device 410 can be freely adjusted within a preset range of span, for example, within a range of 5% -100%. The heating device 410 can receive a heating power instruction sent by the control system 800 to automatically realize heating control, and feed the heating power back to the control system 800 in real time to realize free adjustment of heating of the cooling liquid.
In addition, in order to improve the cooling efficiency of the cooling device 420, the present embodiment may further include a cooling tower 421, and the cooling tower 421 is connected to the cooling device 420. The cooling tower 421 is a device for cooling water, in which the water exchanges heat and mass with air flowing therethrough, so that the temperature of the water is lowered; when the cooling tower 421 is selected, it is usually installed in a place where ventilation is good. The cooling tower 421 can cool the cooling liquid, and also can reduce the cooling component for the cooling liquid in the cooling device 420, so as to lower the temperature of the cooling component, thereby improving the cooling efficiency of the cooling module; moreover, the cooling tower 421 is used to cool the cooling liquid to reduce the noise and improve the comfort of the working environment. It should be noted that the cooling tower 421 may not be required in this embodiment.
The temperature adjusting device further comprises a temperature sensor 810 for detecting the temperature of the cooling liquid, the flow adjusting device 500 comprises a flow sensor 820 for detecting the flow and the flow rate of the cooling liquid, the temperature sensor 810 and the flow sensor 820 are in communication connection with the control system 800, the temperature sensor 810 and the flow sensor 820 feed back the detected temperature and flow data of the cooling liquid to the control system 800, and the control system 800 controls the temperature adjusting device and the flow adjusting device 500 to regulate and control the temperature and the flow of the cooling liquid according to the difference between the monitored temperature and flow data of the cooling liquid and the preset or required temperature and flow data, so that the cooling liquid output by the liquid cooling test device 10 can reach the preset or required liquid cooling condition. In some embodiments, the liquid-cooled input 100 and the liquid-cooled output 200 are provided with at least one of a temperature sensor 810, a flow sensor 820, and a pressure sensor 830.
The flow regulating device 500 further comprises a water pump, the control system 800 is in communication connection with the water pump, and the control system 800 adjusts the rotating speed of the water pump according to the required heat exchange efficiency, so that the flow of the cooling liquid is regulated.
The first switching valve 620, the second switching valve 630, and the third switching valve 640 are communicatively connected to the control system 800, respectively, and the control system 800 switches the internal circulation state and the external circulation state of the coolant by controlling the opening and closing of the first switching valve 620, the second switching valve 630, and the third switching valve 640.
The control system 800 can display the state of the cooling liquid to a user in a visual numerical form, and has the following functions:
1) the temperature value, the pressure value, the flow value, the total running time of the liquid cooling test device 10, the refrigerating power and the heating power of the cooling liquid in the liquid cooling input end 100 and the liquid cooling output end 200 are detected, displayed and recorded in real time, and a curve graph is formed by the temperature value, the pressure value, the flow value, the total running time, the refrigerating power and the heating power of the liquid cooling test device 10 and the time proportion, for example, the recording time interval can be freely set to be 0.01s to 100s, and meanwhile, the recorded data are stored in a form of a table for a user to copy.
2) The human-machine interface of the control system 800 can set the temperature and flow of the cooling liquid at the liquid cooling output end 200, and adjust the cooling power and the heating power of the cooling device 420 and the heating device 410.
3) The refrigerating/heating power, the liquid cooling temperature and the flow working condition can be flexibly set.
4) Can be connected with other test systems in a communication way.
5) The faults of all devices can be displayed on a human-computer interface of the control system 800 and an alarm signal is sent out; the intelligent alarm and protection system has the alarm and protection functions of overvoltage, locked rotor, leakage, over-temperature, over-low pressure, liquid level overrun, insulation leakage, dry burning prevention and the like, and the alarm and protection conditions support self-definition.
The liquid cooling test device 10 provided by the present application is introduced above, and correspondingly, the present application also provides a test system 20 for a power battery, which includes the above liquid cooling test device 10.
The liquid cooling test device 10 comprises a liquid cooling input end 100, a liquid cooling output end 200 and a liquid cooling pipeline 300; the liquid cooling pipeline 300 is used for communicating the liquid cooling input end 100 with the liquid cooling output end 200; wherein, be equipped with temperature regulation apparatus and flow regulator 500 on the liquid cooling pipeline 300, temperature regulation apparatus is used for adjusting the temperature of the coolant liquid that circulates in liquid cooling pipeline 300, and flow regulator 500 is used for adjusting the flow of the coolant liquid that circulates in liquid cooling pipeline 300. After the arrangement, after the cooling liquid enters the liquid cooling pipeline 300 from the liquid cooling input end 100, the temperature and the flow of the cooling liquid can be respectively adjusted by the temperature adjusting device adjusting and flow adjusting device 500, so that the liquid cooling condition of the cooling liquid output by the liquid cooling output end 200 can be controlled in real time, and the liquid cooling management system of the power battery can be tested more comprehensively.
Further, in order to simulate the service state of the power battery system 23 more truly and improve the test data of the liquid cooling test, please refer to fig. 2, the test system 20 of the power battery further includes a charging and discharging test system 21 and a temperature test box 22.
A power battery system 23 is arranged in the temperature test box 22, and the temperature test box 22 is used for configuring an adjustable temperature and humidity environment for the power battery system 23; the power battery system 23 is provided with a liquid cooling management interface a which is communicated with a liquid cooling output end and a liquid cooling input end of the liquid cooling test device and is used for carrying out heat exchange with the liquid cooling test device through the liquid cooling management interface a; the charging and discharging test system 21 is provided with a high-voltage transmission interface b, and the charging and discharging test system 21 is used for transmitting a high-voltage power supply with the power battery system 23 through the high-voltage transmission interface b.
Different temperature and humidity environments of the power battery system 23 are simulated through the temperature test box 22, and the liquid cooling condition data of the power battery system 23 in various temperature and humidity environments can be tested, so that the power battery system 23 keeps high-efficiency work; the power cell system 23 is brought into an operating state by the charge and discharge test system 21. The charging and discharging test system 21 adjusts the charging and discharging power of the power battery system 23 through the high-voltage transmission interface b to simulate different working conditions of the power battery, and the liquid cooling test device 10 outputs different liquid cooling conditions of the cooling liquid of the power battery system 23, such as different temperatures, different flow rates and different pressures, so as to obtain liquid cooling test data of the power battery system 23 under different working conditions.
Further, the charge and discharge test system 21 is in communication connection with the temperature test chamber 22, the power battery system 23, and the liquid cooling test apparatus 10, respectively. That is, the charging and discharging test system 21 is in communication linkage with the power battery system 23 and the liquid cooling test device 10, for example, RS485 CAN be used for communication, and a CAN (Controller Area Network) 2.0 communication interface is reserved. The liquid cooling test device 10 adjusts the temperature, flow rate, pressure and the like of cooling liquid according to the working condition of the power battery system 23, and outputs different liquid cooling conditions for the power battery system 23; the charging and discharging test system 21 simulates different working conditions of the power battery system 23 by controlling the charging and discharging power of the power battery system 23; the charge and discharge test system 21 transmits the charge and discharge condition of the power battery system 23 to the liquid cooling test apparatus 10, and the liquid cooling test apparatus 10 can prepare for adjusting the temperature, flow rate, pressure, and the like of the cooling liquid according to the adjustment condition of the charge and discharge of the power battery system 23. Through the linkage of the three, the charging and discharging numerical value and the temperature numerical value of the power battery system 23 and the liquid cooling condition numerical value for exchanging heat with the power battery system 23 can be obtained. Through the three groups of adaptive numerical values, the data such as the temperature, the flow rate and the flow velocity of the cooling liquid when the power battery system 23 has high heat exchange efficiency can be adapted, and the test system of the liquid cooling management system is perfected.
In addition, the power battery system is also provided with a low-voltage input interface c for connecting with a 12V power supply, and the 12V power supply transmits the low-voltage power supply to the power battery system through the low-voltage input interface c; the power battery system, the temperature test box, the charging and discharging test system and the liquid cooling test device are all provided with a communication interface d, and communication linkage is carried out among the four through the communication interface d.
Other embodiments of the present application further include a mounting structure that can be implemented by combining technical features in the above embodiments.
The aspects of the present application have been described in detail hereinabove with reference to the accompanying drawings.
Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (10)
1. A liquid cooling test device, characterized by, includes:
the liquid cooling input end, the liquid cooling output end and the liquid cooling pipeline;
the liquid cooling pipeline is used for communicating the liquid cooling input end with the liquid cooling output end;
the liquid cooling pipeline is provided with a temperature adjusting device and a flow adjusting device, the temperature adjusting device is used for adjusting the temperature of cooling liquid circulating in the liquid cooling pipeline, and the flow adjusting device is used for adjusting the flow of the cooling liquid circulating in the liquid cooling pipeline.
2. The liquid cooling test apparatus of claim 1, wherein:
the cooling liquid circulation switching device is also included;
the cooling liquid circulation switching device is used for switching the cooling liquid circulating in the liquid cooling pipeline to an external circulation state or an internal circulation state.
3. The liquid cooling test apparatus of claim 2, wherein:
the liquid cooling pipeline comprises an inner circulation pipeline communicated between the liquid cooling input end and the liquid cooling output end;
the cooling liquid circulation switching device comprises a first switch valve arranged at the liquid cooling input end, a second switch valve arranged at the liquid cooling output end and a third switch valve arranged in the inner circulation pipeline;
the first switch valve and the second switch valve are opened, and when the third switch valve is closed, the cooling liquid in the liquid cooling pipeline is switched to the external circulation state;
the first switch valve and the second switch valve are closed, and when the third switch valve is opened, the cooling liquid in the liquid cooling pipeline is switched to the internal circulation state.
4. The liquid cooling test apparatus of claim 3, wherein:
also comprises a liquid quantity adjusting device;
the liquid amount adjusting device is used for adjusting the capacity of the cooling liquid flowing in the liquid cooling pipeline.
5. The liquid cooling test apparatus of claim 4, wherein:
the liquid amount adjusting device comprises a liquid storage tank communicated with the liquid cooling pipeline, and a liquid supplementing device and/or a liquid returning device communicated with the liquid storage tank;
the liquid storage tank is used for storing cooling liquid;
the liquid supplementing device is used for supplementing cooling liquid to the liquid storage tank;
the liquid return device is used for recovering the cooling liquid outside the liquid cooling pipeline to the liquid storage tank.
6. The liquid cooling test apparatus of claim 5, wherein:
the system also comprises a control system;
the control system is respectively in communication connection with at least one of the temperature adjusting device, the flow adjusting device, the cooling liquid circulation switching device and the liquid amount adjusting device;
the control system is used for respectively controlling the working states of the temperature adjusting device, the flow adjusting device, the cooling liquid circulation switching device and the liquid amount adjusting device.
7. The liquid cooling test apparatus of claim 6, wherein:
the temperature adjusting device comprises a heating device and/or a cooling device, and the heating device and the cooling device are in communication connection with the control system and used for adjusting the working states of the heating device and the cooling device.
8. A test system of power battery is characterized in that: comprising a liquid-cooled test apparatus according to any of claims 1-7.
9. The power cell testing system of claim 8, further comprising:
the system comprises a power battery system, a temperature test box and a charge and discharge test system;
the power battery system is arranged in the temperature test box, and the temperature test box is used for configuring an adjustable temperature and humidity environment for the power battery system; the power battery system is provided with a liquid cooling management interface which is communicated with the liquid cooling output end and the liquid cooling input end of the liquid cooling test device and used for exchanging heat with the liquid cooling test device through the liquid cooling management interface;
the charging and discharging test system is provided with a power supply interface and is used for transmitting power supply with the power battery system through the power supply interface.
10. The power cell testing system of claim 9, wherein:
and the charging and discharging test system is in communication connection with the temperature test box, the power battery system and the liquid cooling test device respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120372280.4U CN214122806U (en) | 2021-02-09 | 2021-02-09 | Liquid cooling test device and test system of power battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120372280.4U CN214122806U (en) | 2021-02-09 | 2021-02-09 | Liquid cooling test device and test system of power battery |
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| CN214122806U true CN214122806U (en) | 2021-09-03 |
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