CN110207972A - A kind of life testing method and test equipment of automobile cooling system components - Google Patents

A kind of life testing method and test equipment of automobile cooling system components Download PDF

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Publication number
CN110207972A
CN110207972A CN201910604945.7A CN201910604945A CN110207972A CN 110207972 A CN110207972 A CN 110207972A CN 201910604945 A CN201910604945 A CN 201910604945A CN 110207972 A CN110207972 A CN 110207972A
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CN
China
Prior art keywords
temperature
pressure
water tank
tested
components
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CN201910604945.7A
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Chinese (zh)
Inventor
范子春
杨孝东
严月华
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Shanghai Cary Automation Testing Technology Co Ltd
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Shanghai Cary Automation Testing Technology Co Ltd
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Priority to CN201910604945.7A priority Critical patent/CN110207972A/en
Publication of CN110207972A publication Critical patent/CN110207972A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles

Abstract

The invention discloses the life testing methods and test equipment of a kind of automobile cooling system components, this method is applied in the test equipment including sweat box, vacuum pump, high speed restrictions valve, high temperature water tank and low temperature water tank, comprising: determines the pressure target value and temperature target that solution is tested in components to be tested;Pressure adjustment is carried out using the vacuum pump and the high speed restrictions valve, so that the pressure reaches the pressure target value according to preset pressure ripple frequency;Temperature adjustment is carried out using the high temperature water tank and the low temperature water tank, so that the temperature reaches the temperature target according to default change rate;The test result of the components to be tested is obtained according to the process of the process of pressure adjustment and temperature adjustment in preset environment temperature, to increase the adjustable extent of pressure, rate temperature change is effectively increased, more accurate test result is obtained.

Description

A kind of life testing method and test equipment of automobile cooling system components
Technical field
The present invention relates to field of vehicle part detection, in particular to a kind of life test of automobile cooling system components Method and test equipment.
Background technique
In recent years, with the attention that Environmental is protected, the market share that new-energy automobile occupies is increasing, and new The test of cooling system components on energy automobile needs higher requirement compared with orthodox car, and the prior art is carrying out When above-mentioned test, in terms of there are problems that following two:
In terms of pressure amplitude, the test of the cooling system components on new-energy automobile expands the pressure of tested components The lower limit value of power range, pressure is 0.1bar (absolute pressure), and test pressure in the prior art can only achieve 1.0bar (absolute pressure);
In terms of temperature, the test of the cooling system components on new-energy automobile improves the speed of temperature change, needs Reach harsher temperature shock effect, and only relies solely on improving heating or refrigeration work consumption raising lifting in the prior art Warm speed, temperature changing speed is slow, low efficiency.
Summary of the invention
The present invention provides a kind of life testing method of automobile cooling system components, tests in the prior art to solve Pressure limit is small, and rate temperature change is slow, the low technical problem of testing efficiency, this method be applied to including sweat box, vacuum pump, In the test equipment of high speed restrictions valve, high temperature water tank and low temperature water tank, which comprises
Determine the pressure target value and temperature target that solution is tested in components to be tested, wherein described to be tested zero Component is located in the sweat box and the test solution full of flowing;
Pressure adjustment is carried out using the vacuum pump and the high speed restrictions valve, so that the pressure is according to preset pressure arteries and veins Dynamic frequency reaches the pressure target value;
Temperature adjustment is carried out using the high temperature water tank and the low temperature water tank, so that the temperature is according to default change Rate reaches the temperature target;
Described in the process of the process and temperature adjustment that are adjusted in preset environment temperature according to the pressure obtains The test result of components to be tested.
Preferably, it is obtained in preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment The test result of the components to be tested is taken, specifically:
In preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment make it is described to Test components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data
Preferably, pressure adjustment is carried out using the vacuum pump and the high speed restrictions valve, specifically:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
Preferably, which is characterized in that carry out temperature adjustment using the high temperature water tank and the low temperature water tank, specifically Are as follows:
It is described to be tested to entering by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of components carries out water inlet switching, wherein testing the first temperature value of solution in the high temperature water tank higher than described The second temperature value of solution is tested in low temperature water tank;
The high temperature water tank and the low temperature are back to from the components to be tested by return water two position three-way valve The test solution of water tank carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
Preferably, before carrying out temperature adjustment using the high temperature water tank and the low temperature water tank, the method Further include:
High temperature circulation and high temperature heat exchange are carried out to the test solution in the high temperature water tank to maintain first temperature Angle value;
Low-temperature circulating and low temperature heat exchange are carried out to the test solution in the low temperature water tank to maintain second temperature Angle value.
Correspondingly, the invention also provides a kind of equipment for testing service life of automobile cooling system components, including sweat box, Vacuum pump, high speed restrictions valve, high temperature water tank and low temperature water tank, further includes:
Determining module, for determining the pressure target value and temperature target of testing solution in components to be tested, wherein The components to be tested are located in the sweat box and the test solution full of flowing;
Pressure adjusting module, for carrying out pressure adjustment using the vacuum pump and the high speed restrictions valve, so that described Pressure reaches the pressure target value according to preset pressure ripple frequency;
Temperature adjusts module, for carrying out temperature adjustment using the high temperature water tank and the low temperature water tank, so that The temperature reaches the temperature target according to default change rate;
Module is obtained, for what is adjusted in preset environment temperature according to the process of pressure adjustment and the temperature Process obtains the test result of the components to be tested.
Preferably, the acquisition module, is specifically used for:
In preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment make it is described to Test components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data.
Preferably, the pressure adjusting module, is specifically used for:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
Preferably, the temperature adjusts module, is specifically used for:
It is described to be tested to entering by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of components carries out water inlet switching, wherein testing the first temperature value of solution in the high temperature water tank higher than described The second temperature value of solution is tested in low temperature water tank;
The high temperature water tank and the low temperature are back to from the components to be tested by return water two position three-way valve The test solution of water tank carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
Preferably, further include temperature maintenance module, be specifically used for:
High temperature circulation and high temperature heat exchange are carried out to the test solution in the high temperature water tank to maintain first temperature Angle value;
Low-temperature circulating and low temperature heat exchange are carried out to the test solution in the low temperature water tank to maintain second temperature Angle value.
Be compared with the prior art, the present invention have it is following the utility model has the advantages that
The invention discloses a kind of life testing method of automobile cooling system components, it is applied to including sweat box, very In the test equipment of empty pump, high speed restrictions valve, high temperature water tank and low temperature water tank, comprising: determine and surveyed in components to be tested Try the pressure target value and temperature target of solution;Pressure adjustment is carried out using the vacuum pump and the high speed restrictions valve, with The pressure is set to reach the pressure target value according to preset pressure ripple frequency;Utilize the high temperature water tank and the low temperature Water tank carries out temperature adjustment, so that the temperature reaches the temperature target according to default change rate;In preset environment The test knot of the components to be tested is obtained in temperature according to the process of the process of pressure adjustment and temperature adjustment Fruit effectively increases rate temperature change to increase the adjustable extent of pressure, obtains more accurate test result.
Detailed description of the invention
Fig. 1 is a kind of process signal of the life testing method for automobile cooling system components that the embodiment of the present invention proposes Figure;
Fig. 2 is a kind of structural principle for automobile cooling system part life test macro that the embodiment of the present invention proposes Figure;
Fig. 3 is a kind of structural representation of the equipment for testing service life for automobile cooling system components that the embodiment of the present invention proposes Figure.
Specific embodiment
As stated in the background art, in the prior art when testing automobile cooling system part life, pressure limit is tested Small, rate temperature change is slow, and testing efficiency is low.
To solve the above problems, the embodiment of the present application proposes a kind of life test side of automobile cooling system components Method, carries out pressure adjustment by vacuum pump and high speed restrictions valve, carries out temperature adjustment by high temperature water tank and low temperature water tank, The adjustable extent of pressure is increased, rate temperature change is effectively increased, obtains more accurate test result.
A kind of stream of the life testing method of the automobile cooling system components proposed as shown in Figure 1 for the embodiment of the present invention Journey schematic diagram, this method are applied to the survey including sweat box, vacuum pump, high speed restrictions valve, high temperature water tank and low temperature water tank It tries in equipment, comprising the following steps:
S101 determines the pressure target value and temperature target that solution is tested in components to be tested, wherein to be tested zero Component is located in the sweat box and the test solution full of flowing.
Specifically, sweat box is used to provide test environment for components to be tested, components to be tested are located at the temperature In case and full of the test solution flowed, the pressure, temperature variation pair that solution is tested in components to be tested is flowed through by changing Components are tested, and in test, can first determine the target value of pressure and temperature.Those skilled in the art can be according to test-strips The difference of part determines the target value of corresponding pressure and temperature.
S102 carries out pressure adjustment using the vacuum pump and the high speed restrictions valve, so that the pressure is according to default The fluctuating frequency of pressure reaches the pressure target value;
Specifically, pressure need to be made to reach target value by preset the fluctuating frequency of pressure, in this Shen when carrying out pressure adjustment In concrete application scene please, as shown in Fig. 2, vacuum pump 12 connects vacuum tank 14 by vacuum pressure valve 13, vacuum tank 14 is logical The top that vacuum line is connected to 18 right side of low temperature water tank is crossed, system can be made to generate negative pressure, high speed by running vacuum pump 12 Throttle valve 10 is located between the outlet and return water two position three-way valve 24 of components to be tested, can be used for generating by default ripple frequency Pulsatile pressure passes through operation vacuum pump and adjusts high speed restrictions valve and realizes above-mentioned adjustment.
Effectively to carry out pressure adjustment, in a preferred embodiment of the present application, the vacuum pump and the high speed joint are utilized It flows valve and carries out pressure adjustment, specifically:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
Specifically, generating negative pressure by running the vacuum pump, it is possible to increase the lower limit value of pressure so that the pressure can It adjusts range to reach preset threshold, preset pressure ripple frequency is generated by adjusting high speed restrictions valve, so as to press preset pressure Ripple frequency carries out pressure adjustment in the preset threshold of pressure limit.
It should be noted that those skilled in the art can determine according to actual needs vacuum pump and high speed restrictions valve in equipment In connection type, can flexibly select the vacuum pump and high speed restrictions valve of distinct device parameter, according to different situations can be selected not Same adjustment means, this has no effect on the protection scope of the application.
S103 carries out temperature adjustment using the high temperature water tank and the low temperature water tank so that the temperature according to Default change rate reaches the temperature target.
Specifically, in the concrete application scene of the application, as shown in Fig. 2, high temperature water tank 1, for storing high temperature side Try solution, low temperature water tank 18, for storing low-temperature test solution, by high-temperature pressurizing pump 2 by high temperature test solution by into Water two position three-way valve 23 is squeezed into the components to be tested in sweat box 7, is led to low-temperature test solution by low temperature force (forcing) pump 19 It crosses water inlet two position three-way valve 23 to squeeze into the components to be tested in sweat box 7, be built to the components to be tested in sweat box 7 One pressure and temperature environment, it is molten by the test entered in components to be tested to high temperature water tank 1 and low temperature water tank 18 Liquid switches over, and to generate preset rate of temperature change, temperature is made to reach target value by the change rate.
To guarantee that effectively carrying out temperature adjustment utilizes the high temperature water tank and institute in a preferred embodiment of the present application It states low temperature water tank and carries out temperature adjustment, specifically:
It is described to be tested to entering by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of components carries out water inlet switching, wherein testing the first temperature value of solution in the high temperature water tank higher than described The second temperature value of solution is tested in low temperature water tank;
The high temperature water tank and the low temperature are back to from the components to be tested by return water two position three-way valve The test solution of water tank carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
Specifically, include that water inlet switching and return water switch for the switching of high temperature test solution and low-temperature test solution, In the concrete application scene of the application, as shown in Fig. 2, by water inlet two position three-way valve 23 to by high temperature water tank 1 and by low temperature The test solution for the components to be tested that water tank 18 enters in sweat box 7 carries out water inlet switching, passes through return water two position three-way valve 24 pairs are returned from the test solution that the components to be tested in sweat box 7 are back to high temperature water tank 1 and low temperature water tank 18 Water switching makes the test solution temperature in components to be tested according to default change during switching by water inlet switching and return water Rate reaches temperature target.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed, Those skilled in the art can select different rate of temperature change according to the actual situation, and different means can be used and switched to above-mentioned Cheng Jinhang control, this has no effect on the protection scope of the application.
To guarantee that test solution keeps preset temperature in high temperature water tank and low temperature water tank, in the preferred reality of the application It applies in example, before carrying out temperature adjustment using the high temperature water tank and the low temperature water tank, the method also includes:
High temperature circulation and high temperature heat exchange are carried out to the test solution in the high temperature water tank to maintain first temperature Angle value;
Low-temperature circulating and low temperature heat exchange are carried out to the test solution in the low temperature water tank to maintain second temperature Angle value.
Specifically, in the concrete application scene of the application, high temperature die heater 15, for providing heat for high temperature water tank Energy;Plate heat exchanger 16, for the thermal energy that high temperature die heater 15 generates to be passed to high temperature test solution by heat exchange;High temperature Circulating pump 17 is required, low temperature die heater for making high temperature test solution complete circulation by plate heat exchanger 16 with reaching a high temperature 21, for providing the heat transferring medium of high temperature and low temperature;Shell-and-tube heat exchanger 20, for completing the heat transferring medium and low-temperature test The heat exchange of solution;Low-temperature circulating pump 22, for making low-temperature test solution complete circulation by shell-and-tube heat exchanger 20, to reach Low temperature requirements.
It should be noted that the scheme of preferred embodiment above is only a kind of specific implementation that the application is proposed, Those skilled in the art can also make test solution in high temperature water tank and low temperature water tank keep preset temperature using other Mode, this has no effect on the protection scope of the application.
S104 is obtained in preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment The test result of the components to be tested.
Specifically, also setting up environment temperature during the test, keep test environment true closer to components to be tested Working environment changes it by preset condition in a certain range by adjusting pressure and temperature, carries out to components to be tested Test, and obtain the test result of components to be tested, those skilled in the art can according to the actual situation flexible setting it is different Environment temperature.
To obtain reliable test result, in a preferred embodiment of the present application, according to institute in preset environment temperature The process of the process and temperature adjustment of stating pressure adjustment obtains the test result of the components to be tested, specifically:
In preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment make it is described to Test components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data.
Specifically, being made at components to be tested by the adjustment process of the pressure and temperature under preset environment temperature In scheduled test environment, the test data of components to be tested is obtained during the test, by carrying out to test data Analysis and processing, obtain the test result of components to be tested.
Those skilled in the art can pass through manual analysis, computer disposal or other modes using test according to the actual situation Data acquisition test result, this has no effect on the protection scope of the application.
It is including sweat box, vacuum pump, high speed restrictions valve, high temperature water tank and low temperature by applying above technical scheme In the test equipment of water tank, the pressure target value and temperature target that solution is tested in components to be tested are determined;Using institute It states vacuum pump and the high speed restrictions valve carries out pressure adjustment, so that the pressure reaches described according to preset pressure ripple frequency Pressure target value;Temperature adjustment is carried out using the high temperature water tank and the low temperature water tank, so that the temperature is according to pre- If change rate reaches the temperature target;The process and the temperature adjusted in preset environment temperature according to the pressure The test result that the process of adjustment obtains the components to be tested effectively increases to increase the adjustable extent of pressure Rate temperature change obtains more accurate test result.
For the technical idea that the present invention is further explained, now in conjunction with specific application scenarios, to technical side of the invention Case is illustrated.
The embodiment of the present application provides a kind of automobile cooling system part life test macro, using as described above Method tests automobile cooling system part life, which includes high temperature water tank and low temperature water tank, by following Ring and heat exchanging process make water tank keep high temperature or low temperature, then pass through force (forcing) pump for the test solution ethylene glycol water in water tank Solution is got in the components to be tested in sweat box, builds a pressure and temperature ring to the components to be tested in sweat box Border, this environment are consistent with actual working environment.By controlling the upper lower limit value of pressure and temperature, the ripple frequency and temperature of pressure The change rate of degree is tested, and then obtains the result of the fatigue life of components to be tested.
It is illustrated in figure 2 a kind of structure of automobile cooling system part life test macro of proposition of the embodiment of the present invention Schematic diagram, test solution is specially glycol water, wherein
Sweat box 7 is used to provide test environment for components to be tested, and components to be tested are located in sweat box 7 and are full of The test solution of flowing;High temperature water tank 1 for storing high temperature test solution, and provides the confined space for establishing negative pressure;Low temperature Water tank 18 for storing low-temperature test solution, and provides the confined space for establishing negative pressure, the top in 18 left side of low temperature water tank It is connected by shut-off valve with the top on 1 right side of high temperature water tank;High temperature die heater 15, for providing heat for high temperature water tank Energy;Plate heat exchanger 16, for the thermal energy that high temperature die heater 15 generates to be passed to high temperature test solution by heat exchange;High temperature Circulating pump 17 is required for making high temperature test solution complete circulation by plate heat exchanger 16 with reaching a high temperature;High-temperature pressurizing pump 2, for squeezing into the components to be tested in sweat box 7 high temperature test solution by two position three-way valve 23 of intaking, high temperature adds The outlet of press pump 2 is connect by throttle valve 3 with high temperature water tank 1, which can prevent the outlet pressure of high-temperature pressurizing pump 2 It is excessively high;High/low temperature die heater 21, for providing the heat transferring medium of high temperature and low temperature;Shell-and-tube heat exchanger 20, it is described for completing The heat exchange of heat transferring medium and low-temperature test solution;Low-temperature circulating pump 22, for making low-temperature test solution pass through pipe shell type heat exchange Device 20 completes circulation, to reach low temperature requirements;Low temperature force (forcing) pump 19, for low-temperature test solution to be passed through water inlet two position three-way valve 23 squeeze into the components to be tested in sweat box 7, and the outlet of low temperature force (forcing) pump 19 passes through throttle valve 25 and low temperature water tank 18 Connection, the throttle valve 25 can prevent the outlet pressure of low temperature force (forcing) pump 19 excessively high;In water inlet two position three-way valve 23 and to be tested zero It is also equipped with electromagnetic flowmeter 4 between the entrance of component, can be used for measuring the inlet flow rate of components to be tested;Water inlet two three Port valve 23 makes to test zero to be tested that solution enters in sweat box 7 for switching high temperature test solution and low-temperature test solution In part;Return water two position three-way valve 24 makes to test solution to be tested zero for completing switching with the water inlet cooperation of two position three-way valve 23 Corresponding water tank is flowed out in component;Vacuum pump 12, for establishing and maintaining system negative pressure;Vacuum pressure valve 13 is located at true Sky 12 entrances of pump, for guaranteeing that vacuum pump 12 is worked normally when opening;Vacuum tank 14 is used for buffer system negative pressure load, and The continuity of negative pressure is kept, vacuum tank 14 is connected to the top on 18 right side of low temperature water tank by vacuum line;To be tested zero The high speed restrictions valve 10 and overflow valve 11 being connected in parallel are additionally provided between the outlet and return water two position three-way valve 24 of component, high speed Throttle valve 10 can be used for generating pulsatile pressure by default ripple frequency, and overflow valve 11 can be used for that high speed restrictions valve 10 is assisted to produce Raw pulsatile pressure.
Working principle
Make the high temperature in high temperature water tank 1 by operation high temperature die heater 15, plate heat exchanger 16 and high temperature circulation pump 17 Test solution keeps meeting the temperature of high temperature test requirement, passes through operation high/low temperature die heater 21, shell-and-tube heat exchanger 20 and low Warm circulating pump 22 makes the low-temperature test solution in low temperature water tank 18 keep the temperature for meeting low-temperature test requirement, is wanted according to test Ask the test solution in corresponding water tank is squeezed by high-temperature pressurizing pump 2 or low temperature force (forcing) pump 19 it is to be tested in sweat box 7 In components, make the test solution full of flowing in components to be tested.
The pressure target value and temperature target that solution is tested in components to be tested are first determined, in specific application scenarios In, it may include following 3 kinds of test conditions:
Test condition 1
(absolute pressure) minimum pressure: 0.5bar is tested in pressure fluctuation;Maximum pressure: 2.0bar;The fluctuating frequency of pressure: 25-35 1/min;Cycle-index: n times;Medium: automobile-used coolant liquid;Coolant temperature: 75 DEG C.
Positive pressure tests (absolute pressure) pressure: 4bar;Test period: 1 hour;Medium: automobile-used coolant liquid;Coolant liquid temperature Degree: 75 DEG C;Environment temperature: RT.
Test condition 2
Pressure fluctuation test (absolute pressure) highest water temperature: 75 DEG C;Highest environment temperature (environment storehouse): 85 DEG C;Pressure arteries and veins Dynamic frequency: (1.0 ± 0.5) Hz (sine);Minimum pressure: 0.1bar;Maximum pressure: 2.4bar.
Test condition 3
Pressure fluctuation test temperature requirement: highest water temperature+highest circumstance temperature (n times circulation), minimum water temperature+minimum circumstance temperature (N Secondary circulation);The fluctuating frequency of pressure: (1.0 ± 0.5) Hz (sine);Minimum pressure: 0.1bar;Maximum pressure: 2.4bar.
When test, operation vacuum pump 12 generates negative pressure so that the adjustable extent of pressure reaches preset threshold, adjusting high speed joint It flows valve 10 and generates preset pressure ripple frequency, to flow through the pressure for testing solution of components to be tested according to preset pressure arteries and veins Dynamic frequency reaches pressure target value;By intaking, two position three-way valve 23 enters to by high temperature water tank 1 and by low temperature water tank 18 The test solution of components to be tested in sweat box 7 carries out water inlet switching, by return water two position three-way valve 24 to from sweat box 7 In components to be tested be back to the test solution of high temperature water tank 1 and low temperature water tank 18 and carry out return water switching, by into The test solution temperature in components to be tested is set to reach temperature according to default change rate during water switching and return water switching Target value, in preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment obtain it is described to Test the test result of components.
By applying above technical scheme, it is effectively utilized the function of Hydraulic Elements function in the prior art, vacuum unit Can, the function of heat exchange element is at low cost, and it is easy to operate, the adjustable extent of pressure is increased, temperature change speed is effectively increased Rate, so that the test for the components of the cooling system of new-energy automobile provides strong technical support, for improve its zero The fatigue life of component provides scientific basis.
In order to reach the above technical purpose, present applicant proposes a kind of life tests of automobile cooling system components to set It is standby, including sweat box, vacuum pump, high speed restrictions valve, high temperature water tank and low temperature water tank, as shown in figure 3, further including
Determining module 301, for determining the pressure target value and temperature target of testing solution in components to be tested, In, components to be tested are located in the sweat box and the test solution full of flowing;
Pressure adjusting module 302, for carrying out pressure adjustment using the vacuum pump and the high speed restrictions valve, so that institute It states pressure and reaches the pressure target value according to preset pressure ripple frequency;
Temperature adjusts module 303, for carrying out temperature adjustment using the high temperature water tank and the low temperature water tank, with The temperature is set to reach the temperature target according to default change rate;
Obtain module 304, in preset environment temperature according to the pressure adjustment process and the temperature tune Whole process obtains the test result of the components to be tested.
In specific application scenarios, the acquisition module 304 is specifically used for:
In preset environment temperature according to the process of the process of pressure adjustment and temperature adjustment make it is described to Test components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data.
In specific application scenarios, the pressure adjusting module 302 is specifically used for:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
In specific application scenarios, the temperature adjusts module 303, is specifically used for:
It is described to be tested to entering by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of components carries out water inlet switching, wherein testing the first temperature value of solution in the high temperature water tank higher than described The second temperature value of solution is tested in low temperature water tank;
The high temperature water tank and the low temperature are back to from the components to be tested by return water two position three-way valve The test solution of water tank carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
In specific application scenarios, further includes temperature maintenance module, is specifically used for:
High temperature circulation and high temperature heat exchange are carried out to the test solution in the high temperature water tank to maintain first temperature Angle value;
Low-temperature circulating and low temperature heat exchange are carried out to the test solution in the low temperature water tank to maintain second temperature Angle value.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can lead to Hardware realization is crossed, the mode of necessary general hardware platform can also be added to realize by software.Based on this understanding, this hair Bright technical solution can be embodied in the form of software products, which can store in a non-volatile memories In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including making a computer equipment (can be in the form of some instructions It is personal computer, server or the network equipment etc.) execute method described in each implement scene of the present invention.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or Process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device can describe to be distributed in implement scene according to implement scene Device in, can also carry out corresponding change be located at different from this implement scene one or more devices in.Above-mentioned implementation field The module of scape can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the superiority and inferiority of implement scene.
Disclosed above is only several specific implementation scenes of the invention, and still, the present invention is not limited to this, Ren Heben What the technical staff in field can think variation should all fall into protection scope of the present invention.

Claims (10)

1. a kind of life testing method of automobile cooling system components, which is characterized in that be applied to include sweat box, vacuum In the test equipment of pump, high speed restrictions valve, high temperature water tank and low temperature water tank, which comprises
Determine the pressure target value and temperature target that solution is tested in components to be tested, wherein the components to be tested In the sweat box and full of the test solution flowed;
Pressure adjustment is carried out using the vacuum pump and the high speed restrictions valve, so that the pressure is pulsed frequently according to preset pressure Rate reaches the pressure target value;
Temperature adjustment is carried out using the high temperature water tank and the low temperature water tank, so that the temperature is according to default change rate Reach the temperature target;
Process acquisition in preset environment temperature according to the process of pressure adjustment and temperature adjustment is described to be measured Try the test result of components.
2. the method as described in claim 1, which is characterized in that the mistake adjusted in preset environment temperature according to the pressure Journey and the process of temperature adjustment obtain the test result of the components to be tested, specifically:
The process adjusted in preset environment temperature according to the pressure and the process of temperature adjustment make described to be tested Components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data.
3. the method as described in claim 1, which is characterized in that carry out pressure using the vacuum pump and the high speed restrictions valve Adjustment, specifically:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
4. the method as described in claim 1, which is characterized in that carried out using the high temperature water tank and the low temperature water tank Temperature adjustment, specifically:
Enter described zero to be tested to by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of part carries out water inlet switching, wherein the first temperature value for testing solution in the high temperature water tank is higher than the low temperature The second temperature value of solution is tested in water tank;
The high temperature water tank and the low temperature water storage are back to from the components to be tested by return water two position three-way valve The test solution of case carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
5. method as claimed in claim 4, which is characterized in that using the high temperature water tank and the low temperature water tank into Before trip temperature adjustment, the method also includes:
High temperature circulation and high temperature heat exchange are carried out to maintain first temperature value to the test solution in the high temperature water tank;
Low-temperature circulating and low temperature heat exchange are carried out to maintain the second temperature value to the test solution in the low temperature water tank.
6. a kind of equipment for testing service life of automobile cooling system components, which is characterized in that including sweat box, vacuum pump, high speed Throttle valve, high temperature water tank and low temperature water tank, further includes:
Determining module, for determining the pressure target value and temperature target of testing solution in components to be tested, wherein described Components to be tested are located in the sweat box and the test solution full of flowing;
Pressure adjusting module, for carrying out pressure adjustment using the vacuum pump and the high speed restrictions valve, so that the pressure Reach the pressure target value according to preset pressure ripple frequency;
Temperature adjusts module, for carrying out temperature adjustment using the high temperature water tank and the low temperature water tank, so that described Temperature reaches the temperature target according to default change rate;
Module is obtained, the process for adjusting in preset environment temperature according to the process of pressure adjustment and the temperature Obtain the test result of the components to be tested.
7. test equipment as claimed in claim 5, which is characterized in that the acquisition module is specifically used for:
The process adjusted in preset environment temperature according to the pressure and the process of temperature adjustment make described to be tested Components are in scheduled test environment;
Obtain test data of the components to be tested in the scheduled test environment;
The test result of the components to be tested is obtained according to the test data.
8. test equipment as claimed in claim 5, which is characterized in that the pressure adjusting module is specifically used for:
It runs the vacuum pump and generates negative pressure, so that the adjustable extent of the pressure reaches preset threshold;
It adjusts the high speed restrictions valve and generates the preset pressure ripple frequency;
The pressure adjustment is carried out based on the preset threshold and the preset pressure ripple frequency.
9. test equipment as claimed in claim 5, which is characterized in that the temperature adjusts module, is specifically used for:
Enter described zero to be tested to by the high temperature water tank and by the low temperature water tank by water inlet two position three-way valve The test solution of part carries out water inlet switching, wherein the first temperature value for testing solution in the high temperature water tank is higher than the low temperature The second temperature value of solution is tested in water tank;
The high temperature water tank and the low temperature water storage are back to from the components to be tested by return water two position three-way valve The test solution of case carries out return water switching, wherein the water inlet switching is corresponding with return water switching;
The process of process and return water switching based on the water inlet switching carries out the temperature adjustment.
10. test equipment as claimed in claim 9, which is characterized in that further include temperature maintenance module, be specifically used for:
High temperature circulation and high temperature heat exchange are carried out to maintain first temperature value to the test solution in the high temperature water tank;
Low-temperature circulating and low temperature heat exchange are carried out to maintain the second temperature value to the test solution in the low temperature water tank.
CN201910604945.7A 2019-07-05 2019-07-05 A kind of life testing method and test equipment of automobile cooling system components Pending CN110207972A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375046A (en) * 2010-08-18 2012-03-14 中国科学技术大学 Simulation experiment box
CN102735437A (en) * 2012-07-03 2012-10-17 福建闽机机械科技有限公司 Test machine for service life of valve core of water heating product
CN106289745A (en) * 2016-08-11 2017-01-04 上海汽车集团股份有限公司 Composite material plate spring high/low temperature fatigue and rolling capability testboard bay
CN106644419A (en) * 2015-11-03 2017-05-10 重庆唯馨科技有限公司 Device for testing service life of automobile parts
CN107271200A (en) * 2017-06-29 2017-10-20 北京新能源汽车股份有限公司 cooling system failure monitoring method and device
CN108151918A (en) * 2018-03-14 2018-06-12 泉州七洋机电有限公司 A kind of calorimeter endurance test apparatus and its test method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102375046A (en) * 2010-08-18 2012-03-14 中国科学技术大学 Simulation experiment box
CN102735437A (en) * 2012-07-03 2012-10-17 福建闽机机械科技有限公司 Test machine for service life of valve core of water heating product
CN106644419A (en) * 2015-11-03 2017-05-10 重庆唯馨科技有限公司 Device for testing service life of automobile parts
CN106289745A (en) * 2016-08-11 2017-01-04 上海汽车集团股份有限公司 Composite material plate spring high/low temperature fatigue and rolling capability testboard bay
CN107271200A (en) * 2017-06-29 2017-10-20 北京新能源汽车股份有限公司 cooling system failure monitoring method and device
CN108151918A (en) * 2018-03-14 2018-06-12 泉州七洋机电有限公司 A kind of calorimeter endurance test apparatus and its test method

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