CN208140618U - Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery - Google Patents
Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery Download PDFInfo
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- CN208140618U CN208140618U CN201820389685.7U CN201820389685U CN208140618U CN 208140618 U CN208140618 U CN 208140618U CN 201820389685 U CN201820389685 U CN 201820389685U CN 208140618 U CN208140618 U CN 208140618U
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- 238000011056 performance test Methods 0.000 title claims abstract description 13
- 238000005094 computer simulation Methods 0.000 title claims abstract 4
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000012360 testing method Methods 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 121
- 238000004088 simulation Methods 0.000 claims description 111
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000000110 cooling liquid Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 5
- 239000002826 coolant Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002528 anti-freeze Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000819 phase cycle Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The application provides battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery.The battery pack Performance Test System of the application and the cold and hot Dynamic Simulation system integration of on-vehicle battery are in integration apparatus, it can not only be as cold-hot integrated machine for cooling and heating test to battery pack, it can also be used to simulate the dynamic characteristic of battery cooling-heating system under vehicle-mounted state as cold-hot integrated machine, it is compact-sized, flow resistance is lower, excellent heat transfer properties, low in cost.
Description
Technical Field
The application relates to the technical field of battery testing, in particular to a battery pack performance testing system and a vehicle-mounted battery cold and hot dynamic characteristic simulation system.
Background
With the increase of energy density and cost of battery packs, the heat productivity of battery packs is higher and higher, and many automobile battery packs are cooled by a liquid cooling method and heated by liquid. Therefore, a cooling and heating integrated machine is required for the battery pack cooling and heating test. At present, in the market, the number of cold and hot all-in-one machines specially designed for testing the thermal performance characteristics of the battery pack is small, and the cold and hot all-in-one machine for simulating the dynamic characteristics of a battery cooling-heating system in a vehicle-mounted state is not available.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present application aims to provide a battery pack performance testing system and a vehicle-mounted battery cooling and heating dynamic characteristic simulation system, which are used for solving the above-mentioned problems in the prior art.
To achieve the above and other related objects, the present application provides a battery pack performance testing system, including: a water tank; the water tank is internally provided with anti-freezing cooling liquid, an evaporator and a first heater which are immersed in the anti-freezing cooling liquid; the water inlet of the water tank is connected with the water outlet of the battery pack through a first pipeline, and the water outlet of the water tank is connected with the water inlet of the battery pack through a second pipeline; a first compressor; the low-pressure inlet end of the first compressor is connected with the outlet end of the evaporator; a first condenser; the inlet end of the first condenser is connected with the high-pressure outlet end of the first compressor; a first expansion valve; the first expansion valve is respectively connected with the outlet end of the first condenser and the inlet end of the evaporator; the first water pump, the flow valve, the flow meter and the first pressure gauge are sequentially arranged on the second pipeline; the first water pump is arranged at one end close to the water outlet of the water tank, and the first pressure gauge is arranged at one end close to the water inlet of the battery pack; and the second pressure gauge is arranged at one end of the first pipeline close to the water outlet of the battery pack.
In one embodiment of the present application, the flow meter is a positive displacement volumetric meter.
In an embodiment of the present application, the test system further includes: a first filter, and/or a second filter; the first filter is arranged between the low-pressure inlet end of the first compressor and the outlet end of the evaporator; the second filter is arranged on the second pipeline and is positioned between the water outlet of the water tank and the first water pump.
To achieve the above and other related objects, the present application provides a vehicle-mounted battery cooling and heating dynamic characteristic simulation system based on a battery pack performance test system as described above, including: the vehicle-mounted battery cooling dynamic characteristic simulation branch and the vehicle-mounted battery heating dynamic characteristic simulation branch are connected with the vehicle-mounted battery cooling dynamic characteristic simulation branch; the input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the input end of the vehicle-mounted battery heating dynamic characteristic simulation branch are connected to the first pipeline so as to be connected with the water outlet of the battery pack, and the input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the input end of the vehicle-mounted battery heating dynamic characteristic simulation branch share the second pressure gauge with the battery pack performance test system; the output end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the output end of the vehicle-mounted battery heating dynamic characteristic simulation branch are connected into the second pipeline so as to be connected with the water inlet of the battery pack, and share the flowmeter and the first pressure gauge with the battery pack performance testing system.
In an embodiment of the present application, the on-vehicle battery cooling dynamic characteristic simulation branch includes: the system comprises a regulating valve, a plate heat exchanger for simulating a plate heat exchanger for cooling the vehicle-mounted battery, a second expansion valve, a second condenser, a second compressor for simulating a compressor for cooling the vehicle-mounted battery, an expansion kettle and an interface for connecting a second water pump; the regulating valve is respectively connected with the second pressure gauge and the input end of the first heat exchange side of the plate heat exchanger; the output end of the first heat exchange side of the plate heat exchanger is connected with the input end of the expansion kettle; the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter; the output end of the second heat exchange side of the plate heat exchanger is connected with the low-pressure inlet end of the second compressor; the high-pressure outlet end of the second compressor is connected with the input end of the second condenser; and the output end of the second condenser is connected with the input end of a second heat exchange side of the plate heat exchanger through the second expansion valve.
In an embodiment of the present application, the second water pump includes: a vehicle-mounted water pump, or a plurality of water pump sets connected in series.
In an embodiment of the present application, the simulation system further includes: and the third filter is connected between the output end of the second heat exchange side of the plate heat exchanger and the low-pressure inlet end of the second compressor.
In an embodiment of the present application, the on-vehicle battery heating dynamic characteristic simulation branch includes that: the system comprises a regulating valve, a second heater for simulating a heater for heating a vehicle-mounted battery, an expansion kettle and a connector for connecting a second water pump; the regulating valve is respectively connected with the second pressure gauge and one end of the second heater; the other end of the second heater is connected with the input end of the expansion kettle; the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter.
In an embodiment of the present application, the second water pump includes: a vehicle-mounted water pump, or a plurality of water pump sets connected in series.
In an embodiment of the present application, the simulation system further includes: and the fourth filter is connected between the second heater and the input end of the expansion kettle.
In an embodiment of the present application, the on-board battery cooling dynamic characteristic simulation branch includes: the simulation system comprises a plate heat exchanger for simulating a plate heat exchanger for cooling the vehicle-mounted battery, a second expansion valve, a second condenser and a second compressor for simulating a compressor for cooling the vehicle-mounted battery, and further comprises: a first three-way valve and a second three-way valve; the first three-way valve is connected in series between the regulating valve and the second heater, and the output end of the first three-way valve is connected with the input end of the first heat exchange side of the plate heat exchanger; the second three-way valve is connected between the output end of the first three-way valve and the input end of the first heat exchange side of the plate heat exchanger in series, and the output end of the second three-way valve is connected with the output end of the first heat exchange side of the plate heat exchanger; the output end of the first heat exchange side of the plate heat exchanger is connected with the input end of the expansion kettle; the output end of the second heat exchange side of the plate heat exchanger is connected with the low-pressure inlet end of the second compressor; the high-pressure outlet end of the second compressor is connected with the input end of the second condenser; and the output end of the second condenser is connected with the input end of a second heat exchange side of the plate heat exchanger through the second expansion valve.
In an embodiment of the present application, the simulation system further includes: and the fourth filter is connected between the output end of the first heat exchange side of the plate heat exchanger and the input end of the expansion kettle.
In an embodiment of the present application, the exterior of one or more combinations of the plate heat exchanger, the second heater, the first pipeline, and the second pipeline is wrapped with insulation cotton.
In an embodiment of the present application, the total length of the pipes from the vehicle-mounted battery cooling dynamic characteristic simulation branch and the vehicle-mounted battery heating dynamic characteristic simulation branch, the length of the pipe from the water inlet of the battery pack to the simulation system, and the length of the pipe from the water outlet of the battery pack to the simulation system respectively correspond to the length of the vehicle-mounted pipe; the pipeline resistance coefficients of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the vehicle-mounted battery heating dynamic characteristic simulation branch, the resistance coefficient from the water inlet of the battery pack to the pipeline of the simulation system, and the resistance coefficient from the water outlet of the battery pack to the pipeline of the simulation system respectively correspond to the vehicle-mounted pipeline resistance coefficients.
In an embodiment of the present application, the horizontal heights of the on-board battery cooling dynamic characteristic simulation branch and the on-board battery heating dynamic characteristic simulation branch are consistent with the height of the battery pack for testing.
In an embodiment of the present application, the simulation system further includes: and the human-computer interface is in communication connection with the simulation system so as to remotely control the simulation system.
In an embodiment of the present application, the simulation system further includes: and the auxiliary device is in communication connection with the simulation system so as to monitor the running condition of the simulation system and give an alarm and record when an abnormal condition is found.
As described above, the battery pack performance testing system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system integrate the battery pack performance testing system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system into an integrated device, can be used as a cold and hot all-in-one machine for cooling and heating tests of a battery pack, and can also be used as a cold and hot all-in-one machine for simulating the dynamic characteristics of a battery cooling-heating system in a vehicle-mounted state, and have the advantages of being compact in structure, low in flow resistance, excellent in heat transfer performance, low in cost and the like.
Drawings
Fig. 1 is a schematic structural diagram of an on-vehicle battery cooling and heating dynamic characteristic simulation system based on a battery performance testing system according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application and are not drawn according to the number, shape and size of the components in actual implementation, and the type, number and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The application provides a battery pack testing system and a vehicle-mounted battery cold and hot dynamic performance simulation system based on the testing system, which can be used for testing the cold and hot performance characteristics of a battery pack and can also be used for simulating the dynamic characteristics of a battery cooling-heating system in a vehicle-mounted state.
First embodiment
This embodiment provides a battery package capability test system, and the part that this system includes has: the system comprises a water tank, a first expansion valve, a first condenser, a first compressor, a first filter, a second filter, a first water pump, a flow valve, a second pipeline, a flow meter, a first pressure gauge, a second pressure gauge and a first pipeline. Referring to fig. 1, these components in fig. 1 correspond to the following components in the figure: 101 water tank with heater and evaporator, 102 expansion valve, 103 condenser and fan, 104 compressor, 105 filter, 106 water pump filter, 107 water pump, 108 flow valve, 109 water line, 140 flow meter, 141 pressure gauge, 142 pressure gauge, and 122 water line. It should be noted that the test system of the present embodiment includes both the first filter and the second filter to achieve a better filtering effect, and in practical applications, a person skilled in the art may completely omit the arrangement of the two components, or select one of the two components to perform the arrangement.
And an anti-freezing cooling liquid, an evaporator immersed in the anti-freezing cooling liquid and a first heater are arranged in the water tank. The water inlet of the water tank is connected with the water outlet of the battery pack through a first pipeline, and the water outlet of the water tank is connected with the water inlet of the battery pack through a second pipeline. The low-pressure inlet end of the first compressor is connected with the outlet end of the evaporator. The inlet end of the first condenser is connected with the high-pressure outlet end of the first compressor. The first expansion valve is respectively connected with the outlet end of the first condenser and the inlet end of the evaporator. First water pump, flow valve, flowmeter, and first manometer set gradually in the second pipeline, wherein, first water pump sets up nearly the one end of the delivery port of water tank, first manometer sets up nearly the one end of the water inlet of battery package. The second pressure gauge is arranged at one end of the first pipeline, which is close to the water outlet of the battery pack. The first filter is disposed between a low pressure inlet end of the first compressor and an outlet end of the evaporator. The second filter is arranged on the second pipeline and is positioned between the water outlet of the water tank and the first water pump.
The battery pack performance testing system provided by the embodiment has the following characteristics:
the method is characterized in that: the evaporator and the heater are immersed in the antifreeze coolant, the antifreeze coolant is generally glycol water solution, and the temperature fluctuation of the coolant is generally less than or equal to +/-1 ℃. The first compressor has higher refrigeration power, the heater has higher heating power, the water tank is larger, the first water pump has higher power, and the flow valve is used for setting flow, so that the flow can be output according to the specified temperature requirement and flow requirement within the temperature range of minus 30-60 ℃ and the flow range of 2-25L/min.
The second characteristic: the flow meter adopts a positive displacement flow meter, such as a gear flow meter, so that the flow of the ethylene glycol aqueous solution can be kept at a high measurement precision at low temperature, and the precision is realized to be less than or equal to 0.5L/min. At present, the most extensive flow meter in the battery test field is a speed type flow meter, and almost no liquid cooling and liquid heating test equipment adopting a gear flow meter exists.
The characteristics are three: the first pressure gauge and the second pressure gauge adopt high-precision pressure gauges, and the precision is realized to be less than or equal to 50 pa.
The characteristics are as follows: the first compressor has safety functions of overheat protection, overcurrent protection, high and low pressure protection, overtemperature protection, flow protection, phase sequence/open phase protection, exhaust overheat protection and the like.
Second embodiment
On the basis of the aforementioned battery pack performance test system, the application also provides a vehicle-mounted battery cold and hot dynamic characteristic simulation system, and the simulation system comprises two branches: the vehicle-mounted battery cooling dynamic characteristic simulation branch circuit and the vehicle-mounted battery heating dynamic characteristic simulation branch circuit.
The input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch is connected with the first pipeline so as to be connected with the water outlet of the battery pack, and the input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch shares the second pressure gauge with the battery pack performance test system. The output end of the vehicle-mounted battery cooling dynamic characteristic simulation branch is connected with the second pipeline so as to be connected with the water inlet of the battery pack, and the flow meter and the first pressure gauge are shared by the vehicle-mounted battery cooling dynamic characteristic simulation branch and the battery pack performance test system.
The on-vehicle battery cooling dynamic characteristic simulation branch comprises: the system comprises a regulating valve, a plate heat exchanger for simulating a plate heat exchanger for cooling the vehicle-mounted battery, a second expansion valve, a second condenser, a second compressor for simulating a compressor for cooling the vehicle-mounted battery, an expansion kettle and a connector for connecting a second water pump (such as a vehicle-mounted water pump or a plurality of water pump sets connected in series). In detail: the regulating valve is respectively connected with the second pressure gauge and the input end of the first heat exchange side of the plate heat exchanger; the output end of the first heat exchange side of the plate heat exchanger is connected with the input end of the expansion kettle; the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter; the output end of the second heat exchange side of the plate heat exchanger is connected with the low-pressure inlet end of the second compressor; the high-pressure outlet end of the second compressor is connected with the input end of the second condenser; and the output end of the second condenser is connected with the input end of a second heat exchange side of the plate heat exchanger through the second expansion valve.
Optionally, the on-vehicle battery cooling dynamic characteristic simulation branch further includes: and the third filter is connected between the output end of the second heat exchange side of the plate heat exchanger and the low-pressure inlet end of the second compressor.
Preferably, the second compressor has safety functions of overheat protection, overcurrent protection, high and low pressure protection, overtemperature protection, flow protection, phase sequence/open phase protection, exhaust overheat protection and the like.
The input end of the vehicle-mounted battery heating dynamic characteristic simulation branch is connected with the first pipeline so as to be connected with the water outlet of the battery pack, and the input end of the vehicle-mounted battery heating dynamic characteristic simulation branch shares the second pressure gauge with the battery pack performance test system; the output end of the vehicle-mounted battery heating dynamic characteristic simulation branch is connected with the second pipeline so as to be connected with the water inlet of the battery pack, and the flow meter and the first pressure gauge are shared by the vehicle-mounted battery heating dynamic characteristic simulation branch and the battery pack performance test system.
The vehicle-mounted battery heating dynamic characteristic simulation branch comprises the following components in sequential connection: the system comprises a regulating valve, a second heater for simulating a heater for heating a vehicle-mounted battery, an expansion kettle and a connector for connecting a second water pump (such as a vehicle-mounted water pump or a plurality of water pump sets connected in series). In detail: the regulating valve is respectively connected with the second pressure gauge and one end of the second heater; the other end of the second heater is connected with the input end of the expansion kettle; the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter.
Optionally, the on-vehicle battery heating dynamic characteristic simulation branch further includes: and the fourth filter is connected between the second heater and the input end of the expansion kettle.
Third embodiment
Referring to fig. 1, the on-vehicle battery cooling dynamic characteristic simulation branch and the on-vehicle battery heating dynamic characteristic simulation branch of the second embodiment may also be integrated by a three-way valve, so that the structure of the whole simulation system is more compact. In detail, the components in these two branches: second condenser, second compressor, third filter, plate heat exchanger, second expansion valve, fourth filter, expansion kettle, second water pump, second three-way valve, first three-way valve, second heater, governing valve correspond to in the picture respectively: 110 condenser and fan, 111 compressor, 112 filter, 113 plate heat exchanger, 114 expansion valve, 115 filter, 116 expansion kettle, 117 pump, 118 three-way valve, 119 three-way valve, 120 heater, 121 electronic regulating valve. It should be noted that the test system of the present embodiment includes both the third filter and the fourth filter to achieve a better filtering effect, and in practical applications, a person skilled in the art may completely omit the arrangement of the two components, or select one of the two components to perform the arrangement.
Since the configuration of the on-vehicle battery cooling dynamic characteristic simulation branch and the configuration of the on-vehicle battery heating dynamic characteristic simulation branch are described in detail in the second embodiment, the present embodiment will mainly describe a structure in which these two branches are integrated into one. The integrated structure is mainly realized by the first three-way valve and the second three-way valve, and the detailed structure comprises the following components: the first three-way valve is connected in series between the regulating valve and the heater, and the output end of the first three-way valve is connected with the input end of a first heat exchange side of the plate heat exchanger; the second three-way valve is connected in series between the output end of the first three-way valve and the input end of the first heat exchange side of the plate heat exchanger, and the output end of the second three-way valve is connected with the output end of the first heat exchange side of the plate heat exchanger.
Preferably, the plate heat exchanger, the second heater, and the first pipeline and the second pipeline are wrapped by heat insulation cotton. The second expansion valve adopts an electronic expansion valve, the second compressor adopts a variable frequency compressor, and a fan of the second condenser adopts a PMW (pulse-modulated Power unit) to control the fan. The first pressure gauge and the second pressure gauge adopt high-precision pressure gauges.
According to the vehicle-mounted battery cold and hot dynamic characteristic simulation system provided by the embodiment, when the battery pack is heated, the coolant does not pass through the plate heat exchanger through the second three-way valve; when the battery pack is cooled, the first three-way valve is used for preventing the cooling liquid from passing through the second heater. The refrigerating power and the superheat degree are adjusted by adjusting the frequency of the second compressor and the plate heat exchanger and adjusting the opening degree of the second expansion valve, so that the refrigerating process of the battery pack under the vehicle-mounted environment is simulated. The heating power is adjusted by adjusting the power of the second heater, and the flow rate is adjusted by adjusting the power of the second water pump (group) and the electronic regulating valve. In addition, in order to simulate a more real situation, the third embodiment reserves an interface of the second water pump on the simulation system, and can be directly externally connected with a vehicle-mounted water pump for a certain vehicle type to perform a heating test of the heating battery pack.
Since the viscosity of the coolant is high at low temperatures, the length and local resistance of the tube outside the battery pack have a large influence on the flow rate. In view of this, the length and the resistance coefficient of the pipeline inside the simulation system, the length and the resistance coefficient of the pipeline from the water inlet of the battery pack to the simulation system, and the length and the resistance coefficient of the pipeline from the water outlet of the battery pack to the simulation system are close to the length and the resistance coefficient of the pipeline on the vehicle. In addition, the horizontal height of the simulation system of the embodiment is basically consistent with the height of the battery pack for testing, and the length of the pipeline is as close as possible to the length of the vehicle-mounted pipeline, so that the vehicle-mounted heating process can be simulated more truly.
Fourth embodiment
On the basis of the battery pack performance test system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system, the embodiment provides a human-computer interface for remotely controlling the battery pack performance test system and an auxiliary device for detecting the running condition of the battery pack.
The man-machine interface is connected with electronic components in the battery pack performance testing system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system through communication, and controls the electronic components according to control instructions input by a user, for example: the system is connected with a pressure gauge (arranged as required) to obtain measured values of water taking and water returning pressure and display the measured values to a user, is connected with a flowmeter (arranged as required) to realize flow measurement and display the measured values to the user, is connected with a water tank to control the temperature of cooling liquid and the like, can be selected, and can also store and output acquired measured data into formats such as excel, csv and the like according to user instructions; for another example, the start-stop operation of the water pump is controlled by being connected with the water pump; for another example, the second compressor, the plate heat exchanger, and the second expansion valve may be feedback-controlled while the cooling power, the degree of superheat, and the plate exchange outlet water temperature are displayed in real time. Due to the limited space, it is not always a list.
The auxiliary device is connected with electronic components in the battery pack performance testing system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system through communication, automatically diagnoses monitored operation conditions according to preset protection limit values at all levels, gives an alarm (such as audible and visual alarm and emergency shutdown) and displays when abnormal conditions are found, and then stores fault information, such as automatically storing recorded information 10min before shutdown.
To sum up, the battery pack performance testing system and the vehicle-mounted battery cold and hot dynamic characteristic simulation system effectively overcome various defects in the prior art and have high industrial utilization value.
The above embodiments are merely illustrative of the principles and utilities of the present application and are not intended to limit the application. Any person skilled in the art can modify or change the above-described embodiments without departing from the spirit and scope of the present application. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed in the present application shall be covered by the claims of the present application.
Claims (17)
1. A battery pack performance testing system, comprising:
a water tank; the water tank is internally provided with anti-freezing cooling liquid, an evaporator and a first heater which are immersed in the anti-freezing cooling liquid; the water inlet of the water tank is connected with the water outlet of the battery pack through a first pipeline, and the water outlet of the water tank is connected with the water inlet of the battery pack through a second pipeline;
a first compressor; the low-pressure inlet end of the first compressor is connected with the outlet end of the evaporator;
a first condenser; the inlet end of the first condenser is connected with the high-pressure outlet end of the first compressor;
a first expansion valve; the first expansion valve is respectively connected with the outlet end of the first condenser and the inlet end of the evaporator;
the first water pump, the flow valve, the flow meter and the first pressure gauge are sequentially arranged on the second pipeline; the first water pump is arranged at one end close to the water outlet of the water tank, and the first pressure gauge is arranged at one end close to the water inlet of the battery pack;
and the second pressure gauge is arranged at one end of the first pipeline close to the water outlet of the battery pack.
2. The system of claim 1, wherein the flow meter is a positive displacement volumetric meter.
3. The system of claim 1, further comprising: a first filter, and/or a second filter;
the first filter is arranged between the low-pressure inlet end of the first compressor and the outlet end of the evaporator;
the second filter is arranged on the second pipeline and is positioned between the water outlet of the water tank and the first water pump.
4. An on-vehicle battery cooling-heating dynamic characteristic simulation system based on the battery pack performance test system according to any one of claims 1 to 3, comprising: the vehicle-mounted battery cooling dynamic characteristic simulation branch and the vehicle-mounted battery heating dynamic characteristic simulation branch are connected with the vehicle-mounted battery cooling dynamic characteristic simulation branch; wherein,
the input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the input end of the vehicle-mounted battery heating dynamic characteristic simulation branch are connected to the first pipeline so as to be connected with the water outlet of the battery pack, and the input end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the input end of the vehicle-mounted battery heating dynamic characteristic simulation branch share the second pressure gauge with the battery pack performance testing system;
the output end of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the output end of the vehicle-mounted battery heating dynamic characteristic simulation branch are connected into the second pipeline so as to be connected with the water inlet of the battery pack, and share the flowmeter and the first pressure gauge with the battery pack performance testing system.
5. The simulation system of claim 4, wherein the on-board battery cooling dynamics simulation branch comprises: the system comprises a regulating valve, a plate heat exchanger for simulating a plate heat exchanger for cooling the vehicle-mounted battery, a second expansion valve, a second condenser, a second compressor for simulating a compressor for cooling the vehicle-mounted battery, an expansion kettle and an interface for connecting a second water pump; wherein,
the regulating valve is respectively connected with the second pressure gauge and the input end of the first heat exchange side of the plate heat exchanger;
the output end of the first heat exchange side of the plate heat exchanger is connected with the input end of the expansion kettle;
the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter;
the output end of the second heat exchange side of the plate heat exchanger is connected with the low-pressure inlet end of the second compressor;
the high-pressure outlet end of the second compressor is connected with the input end of the second condenser;
and the output end of the second condenser is connected with the input end of a second heat exchange side of the plate heat exchanger through the second expansion valve.
6. The simulation system of claim 5, wherein the second water pump comprises: a vehicle-mounted water pump, or a plurality of water pump sets connected in series.
7. The simulation system of claim 5, further comprising: and the third filter is connected between the output end of the second heat exchange side of the plate heat exchanger and the low-pressure inlet end of the second compressor.
8. The simulation system of claim 4, wherein the vehicle-mounted battery heating dynamic simulation branch comprises, connected in sequence: the system comprises a regulating valve, a second heater for simulating a heater for heating a vehicle-mounted battery, an expansion kettle and a connector for connecting a second water pump;
the regulating valve is respectively connected with the second pressure gauge and one end of the second heater;
the other end of the second heater is connected with the input end of the expansion kettle;
the interface is connected between the expansion kettle and the flowmeter; the interface enables a low-pressure input end of a second water pump connected with the interface to be connected with an output end of the expansion kettle, and a high-pressure output end of the second water pump connected with the interface is connected with the flowmeter.
9. The simulation system of claim 8, wherein the second water pump comprises: a vehicle-mounted water pump, or a plurality of water pump sets connected in series.
10. The simulation system of claim 8, further comprising: and the fourth filter is connected between the second heater and the input end of the expansion kettle.
11. The simulation system of claim 8, wherein the on-board battery cooling dynamics simulation branch comprises: the simulation system comprises a plate heat exchanger for simulating a plate heat exchanger for cooling the vehicle-mounted battery, a second expansion valve, a second condenser and a second compressor for simulating a compressor for cooling the vehicle-mounted battery, and further comprises: a first three-way valve and a second three-way valve; wherein,
the first three-way valve is connected in series between the regulating valve and the second heater, and the output end of the first three-way valve is connected with the input end of a first heat exchange side of the plate heat exchanger;
the second three-way valve is connected between the output end of the first three-way valve and the input end of the first heat exchange side of the plate heat exchanger in series, and the output end of the second three-way valve is connected with the output end of the first heat exchange side of the plate heat exchanger;
the output end of the first heat exchange side of the plate heat exchanger is connected with the input end of the expansion kettle;
the output end of the second heat exchange side of the plate heat exchanger is connected with the low-pressure inlet end of the second compressor;
the high-pressure outlet end of the second compressor is connected with the input end of the second condenser;
and the output end of the second condenser is connected with the input end of a second heat exchange side of the plate heat exchanger through the second expansion valve.
12. The simulation system of claim 11, further comprising: and the fourth filter is connected between the output end of the first heat exchange side of the plate heat exchanger and the input end of the expansion kettle.
13. The simulation system of claim 11, wherein an exterior of one or more combinations of the plate heat exchanger, the second heater, the first conduit, and the second conduit is wrapped with insulating cotton.
14. The simulation system according to claim 11, wherein the total length of the pipes of the on-board battery cooling dynamics simulation branch and the on-board battery heating dynamics simulation branch, the length of the pipe from the water inlet of the battery pack to the simulation system, and the length of the pipe from the water outlet of the battery pack to the simulation system correspond to the length of the on-board pipe, respectively; the pipeline resistance coefficients of the vehicle-mounted battery cooling dynamic characteristic simulation branch and the vehicle-mounted battery heating dynamic characteristic simulation branch, the resistance coefficient from the water inlet of the battery pack to the pipeline of the simulation system, and the resistance coefficient from the water outlet of the battery pack to the pipeline of the simulation system respectively correspond to the vehicle-mounted pipeline resistance coefficients.
15. The simulation system of claim 11, wherein the on-board battery cooling dynamics simulation branch and the on-board battery heating dynamics simulation branch have a level that is consistent with a height of a test battery pack.
16. The simulation system of claim 11, further comprising: and the human-computer interface is in communication connection with the simulation system so as to remotely control the simulation system.
17. The simulation system of claim 11, further comprising: and the auxiliary device is in communication connection with the simulation system so as to monitor the running condition of the simulation system and give an alarm and record when an abnormal condition is found.
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| CN201820389685.7U CN208140618U (en) | 2018-03-20 | 2018-03-20 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
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| CN201820389685.7U CN208140618U (en) | 2018-03-20 | 2018-03-20 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303445A (en) * | 2018-03-20 | 2018-07-20 | 爱驰汽车有限公司 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
| CN112758882A (en) * | 2019-11-05 | 2021-05-07 | 上海重塑能源科技有限公司 | Method and device for filling coolant in fuel cell vehicle |
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2018
- 2018-03-20 CN CN201820389685.7U patent/CN208140618U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303445A (en) * | 2018-03-20 | 2018-07-20 | 爱驰汽车有限公司 | Battery pack Performance Test System and the cold and hot Dynamic Simulation system of on-vehicle battery |
| CN112758882A (en) * | 2019-11-05 | 2021-05-07 | 上海重塑能源科技有限公司 | Method and device for filling coolant in fuel cell vehicle |
| CN112758882B (en) * | 2019-11-05 | 2022-07-12 | 上海重塑能源科技有限公司 | Method and device for filling coolant in fuel cell vehicle |
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