Circulation system for vibration test of automobile radiator

Abstract

The invention discloses a circulation system for an automobile radiator vibration test, which comprises a vibration test bench and a test radiator, and also comprises a liquid supply unit and an electric control unit, the liquid supply unit is connected with the test radiator and is used for conveying cooling liquid for cooling to the test radiator, and the electric control unit is connected with the test radiator. The cooling device is used for recycling the cooling liquid conveyed to the test radiator; and the electrical control unit is connected with the liquid supply unit and is used for carrying out operation control and operation monitoring on the liquid supply unit. With the adoption of the circulating system, the liquid supply unit is controlled by the electrical control unit, and the temperature, pressure and flow parameters of the cooling liquid are controlled, so that a radiator vibration test can be carried out under different parameter conditions under high-temperature and high-pressure working conditions; the method provides more accurate data for improving the reliability design of the radiator so as to meet the actual use requirements of the radiator, has great practical significance and is suitable for popularization and application.

Description

Technical Field

[0001] The invention relates to the technical field of automobile radiators, and in particular to a circulation system for a vibration test of an automobile radiator. Background Art

[0002] The automobile radiator consists of three parts: the water inlet chamber, the water outlet chamber and the radiator core. The coolant flows in the radiator core, and the air passes outside the radiator. The hot coolant cools down due to the heat dissipation to the air, and the cold air heats up due to the absorption of the heat dissipated by the coolant. The radiator is an indispensable and important component in the cooling system of the automobile water-cooled engine. In the actual use of the automobile radiator, because its interior is in a high temperature, high pressure and flowing state, and the exterior is subjected to vibration and impact loads in all directions, the radiator vibration test has become an important test item that all manufacturers must conduct during the research and development process. At present, automobile manufacturers and parts companies all use QC / T 468-2010 "Automobile Radiator". The standard 5.6 Hot and Cold Cycle Test and 5.10 Vibration Performance Test have made relevant provisions for hot and cold shock tests and vibration resistance tests respectively.

[0003] The traditional radiator vibration test is to place the radiator on a vibration test bench after filling it with coolant at room temperature. However, in the actual application of the radiator, the coolant inside the radiator is in a high temperature, high pressure and flowing state. Therefore, the traditional vibration test bench fails to fully simulate the actual working condition of the radiator. Based on the current status of vibration testing, it cannot simulate the actual operation of the car, and it takes a long time and has low work efficiency. Therefore, in order to provide a radiator vibration test that can simulate high temperature and high pressure working conditions, a vibration test system that can simulate the actual working conditions of the car radiator is provided to solve the problem that the existing vibration test cannot simulate the cooling effect of the coolant under high temperature, flowing and high pressure working conditions, so as to meet the actual use needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to solve the problems existing in the background technology. In order to solve the problem that the radiator vibration test conforms to the actual operating state of the automobile, a circulation system with a simple structure and easy operation is provided. By using the circulation system, test results that are more in line with actual working conditions can be obtained, and more accurate data can be provided for improving the reliability design of the radiator, so as to meet the actual use needs of the radiator. Specifically, it is a circulation system for automobile radiator vibration test.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a circulation system for automobile radiator vibration test, including a vibration test bench and a test radiator installed in the vibration test bench, and also including a liquid supply unit and an electrical control unit. The liquid supply unit is connected to the test radiator and is used to transport coolant for cooling the test radiator and to recover the coolant transported to the test radiator; and the electrical control unit is connected to the liquid supply unit and is used to control and monitor the operation of the liquid supply unit.

[0006] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and the liquid supply unit includes a liquid supply system, a cooling system and a centrifugal pump. The liquid supply system is connected to the cooling system through the centrifugal pump, and the cooling system is connected to the test radiator for conveying coolant for cooling the test radiator, and the liquid supply system is connected to the test radiator for recovering the coolant conveyed to the test radiator; the electrical control unit is respectively connected to the liquid supply system, the cooling system and the centrifugal pump, and is used for controlling and monitoring the operation of the liquid supply system, the cooling system and the centrifugal pump.

[0007] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and the liquid supply system includes a liquid storage tank, a recovery pipe, and a heater and a first temperature sensor arranged in the liquid storage tank, the heater is used to heat the coolant stored in the liquid storage tank, and the first temperature sensor is used to monitor the coolant temperature in the liquid storage tank, and an automatic exhaust control valve is also provided on the top of the liquid storage tank, the liquid storage tank is connected to the cooling system through a centrifugal pump, and the liquid storage tank is connected to the test radiator through a recovery pipe, and is used to recover the coolant delivered to the test radiator; the heater, the first temperature sensor and the automatic exhaust control valve are respectively electrically connected to the electrical control unit.

[0008] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and the cooling system includes a heat sink, a delivery pipeline, and a fan and a second temperature sensor arranged in the heat sink, the fan is used to cool the coolant delivered to the heat sink, and the second temperature sensor is used to monitor the coolant temperature in the heat sink, the heat sink is connected to the liquid storage tank in the liquid supply system through a centrifugal pump, the heat sink is connected to the test radiator through the delivery pipeline, and is used to deliver coolant for cooling to the test radiator, and the fan and the second temperature sensor are respectively electrically connected to the electrical control unit.

[0009] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and a bypass pipe is also provided between the liquid supply system and the cooling system, the input end of the bypass pipe is connected to the delivery pipe, and the output end thereof is communicated with the liquid storage tank, and a bypass electromagnetic ball valve is installed in the bypass pipe, and the bypass electromagnetic ball valve is electrically connected to the electrical control unit.

[0010] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and a delivery electromagnetic ball valve, a pressure gauge, a flow sensor and a temperature transmitter are installed in the delivery pipeline. The delivery electromagnetic ball valve, the pressure gauge, the flow sensor and the temperature transmitter are respectively installed in the delivery pipeline along the delivery direction of the delivery pipeline, and are respectively electrically connected to the electrical control unit.

[0011] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, characterized in that: the electrical control unit includes a controller, a circuit breaker, a power converter and an intermediate relay, the controller is an integrated control monitoring system with a display screen, and the intermediate relay is provided with multiple, the electrical control unit is electrically connected to an external 220V AC power supply through a circuit breaker, the controller is electrically connected to the circuit breaker through a power converter, the controller is electrically connected to a centrifugal water pump, a heater and a fan respectively through corresponding intermediate relays, and the first temperature sensor, the second temperature sensor, the automatic exhaust control valve, the bypass electromagnetic ball valve, the delivery electromagnetic ball valve, the pressure gauge, the flow sensor and the temperature transmitter are electrically connected to the controller respectively, the controller controls the working status of the centrifugal water pump, the heater and the fan respectively according to the monitoring data information fed back by the first temperature sensor, the second temperature sensor, the pressure gauge, the flow sensor and the temperature transmitter, so as to provide the test radiator with coolant that meets the vibration test requirements.

[0012] Furthermore, a circulation system for automobile radiator vibration test described in the present invention is adopted, and the test radiator includes a coolant input interface and a coolant output interface. The test radiator is connected to a delivery pipeline in the cooling system through the coolant input interface, which is used to deliver coolant for cooling to the test radiator, and its coolant output interface is connected to a recovery pipeline in the liquid supply system, which is used to recover the coolant delivered to the test radiator, thereby realizing the recycling of the coolant.

[0013] Compared with the prior art, the circulation system for automobile radiator vibration test described in the present invention has the following beneficial effects: by adding an external circulation system and using an electrical control unit to control the liquid supply unit, and by controlling the temperature, pressure and flow parameters of the coolant, it is possible to simulate high temperature and high pressure working conditions, so that the radiator vibration test can be carried out under different parameter conditions, thereby obtaining test results that are more in line with actual working conditions, providing more accurate data for improving the reliability design of the radiator, so as to meet the actual use needs of the radiator, having great practical significance, and being suitable for popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0015] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a circuit schematic diagram of the present invention; Figure 3 It is a circuit control structure block diagram of the present invention.

[0016] As shown in the figure: 1- vibration test bench, 2- test radiator, 3- liquid storage tank, 4- heater, 5- automatic exhaust control valve, 6- centrifugal pump, 7- heat sink, 8- fan, 9- bypass solenoid ball valve, 10- delivery solenoid ball valve, 11- pressure gauge, 12- flow sensor, 13- temperature transmitter. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0018] like Figures 1 to 3As shown, a circulation system for automobile radiator vibration test provided by this embodiment includes a vibration test bench 1 and a test radiator 2 installed in the vibration test bench 1, and also includes a liquid supply unit and an electrical control unit. The liquid supply unit is connected to the test radiator 2 and is used to deliver coolant for cooling to the test radiator and to recover the coolant delivered to the test radiator; and the electrical control unit is connected to the liquid supply unit and is used to control and monitor the operation of the liquid supply unit; wherein the liquid supply unit includes a liquid supply system, a cooling system and a centrifugal pump 6, and the centrifugal pump 6 is a pressure-resistant water pump, the liquid supply system is connected to the cooling system through the centrifugal pump 6, the cooling system is connected to the test radiator and is used to deliver coolant for cooling to the test radiator, and the liquid supply system is connected to the test radiator and is used to recover the coolant delivered to the test radiator; the electrical control unit is respectively connected to the liquid supply system, the cooling system and the centrifugal pump, and is used to control and monitor the operation of the liquid supply system, the cooling system and the centrifugal pump.

[0019] Furthermore, a circulation system for automobile radiator vibration test described in this embodiment is adopted, and the liquid supply system includes a liquid storage tank 3, a recovery pipe, and a heater 4 and a first temperature sensor arranged in the liquid storage tank 3, the heater 4 is used to heat the coolant stored in the liquid storage tank 3, and the first temperature sensor is used to monitor the coolant temperature in the liquid storage tank 3, and an automatic exhaust control valve 5 is also provided on the top of the liquid storage tank 3, the liquid storage tank 3 is connected to the cooling system through a centrifugal pump 6, and the liquid storage tank 3 is connected to the test radiator 2 through a recovery pipe, which is used to recover the coolant delivered to the test radiator 2; the heater 4, the first temperature sensor and the automatic exhaust control valve 5 are electrically connected to the electrical control unit respectively; and the cooling system includes a radiator 7, a delivery pipe, and a fan 8 and a first temperature sensor arranged in the radiator 7. Two temperature sensors, the fan 8 is used to cool the coolant delivered to the heat sink 7, and the second temperature sensor is used to monitor the coolant temperature in the heat sink 7, the heat sink 7 is connected to the liquid storage tank 3 in the liquid supply system through the centrifugal pump 6, the heat sink 7 is connected to the test radiator 2 through the delivery pipeline, and is used to deliver the coolant for cooling to the test radiator 2, the fan 8 and the second temperature sensor are electrically connected to the electrical control unit respectively; and the test radiator 2 includes a coolant input interface and a coolant output interface, the test radiator 2 is connected to the delivery pipeline in the cooling system through the coolant input interface, and is used to deliver the coolant for cooling to the test radiator 2, and its coolant output interface is connected to the recovery pipeline in the liquid supply system, and is used to recover the coolant delivered to the test radiator 2, so as to realize the recycling of the coolant.

[0020] Furthermore, a circulation system for automobile radiator vibration test described in this embodiment is adopted, and a delivery electromagnetic ball valve 10, a pressure gauge 11, a flow sensor 12 and a temperature transmitter 13 are installed in the delivery pipeline. The delivery electromagnetic ball valve 10, the pressure gauge 11, the flow sensor 12 and the temperature transmitter 13 are respectively installed in the delivery pipeline along the delivery direction of the delivery pipeline, and are respectively electrically connected to the electrical control unit.

[0021] Further, a circulation system for automobile radiator vibration test described in this embodiment is adopted, the electrical control unit includes a controller, a circuit breaker, a power converter and an intermediate relay, the controller is an integrated control and monitoring system with a display screen, the circuit breaker is provided with a QF, the power converter adopts a 24V AC / DC power supply, and the intermediate relay is provided with three, the three intermediate relays are KA1, KA2 and KA3, the electrical control unit is electrically connected to the external 220V AC power supply through the QF circuit breaker, and the controller is electrically connected to the circuit breaker through the power converter The controller is electrically connected to the centrifugal water pump, the heater and the fan through three intermediate relays, and the first temperature sensor, the second temperature sensor, the automatic exhaust control valve 5, the delivery electromagnetic ball valve 10, the pressure gauge 11, the flow sensor 12 and the temperature transmitter 13 are electrically connected to the controller respectively. The controller controls the working states of the centrifugal pump 6, the heater 4 and the fan 8 respectively according to the monitoring data information fed back by the first temperature sensor, the second temperature sensor, the pressure gauge 11, the flow sensor 12 and the temperature transmitter 13, so as to provide the test radiator 2 with coolant that meets the requirements of the vibration test. Example 2

[0022] This embodiment is based on the embodiment 1. In order to allow the coolant in the cooling system to flow back to the liquid supply system, a bypass pipeline is further provided between the liquid supply system and the cooling system. The input end of the bypass pipeline is connected to the delivery pipeline, and the output end thereof is connected to the liquid storage tank. A bypass electromagnetic ball valve 9 is installed in the bypass pipeline, and the bypass electromagnetic ball valve 9 is electrically connected to the electrical control unit. Through the bypass pipeline provided and the bypass electromagnetic ball valve 9 installed in the bypass pipeline, the opening state of the bypass electromagnetic ball valve 9 is controlled by the controller, so that the coolant in the heat sink 7 can be returned to the liquid storage tank 3, so as to realize the recycling of the coolant.

[0023] The circulation system of the present invention has the following working principle: through the configured electrical control unit, the circulation system is first connected to the AC 220V power supply, and then the circuit breaker is closed. After the AC / DC power supply of the power converter is powered, the controller is powered. In the display screen interface of the controller, the required test temperature of the coolant is set according to the test requirements. Under the action of the controller, the automatic operation function is turned on. At this time, the heater 4 in the liquid storage tank 3 starts to work, and then the centrifugal pump 6 is started to make the water pump start working. When the temperature reaches the set temperature, the heater 4 automatically stops working, and when it is lower than the set temperature, the heater 4 automatically starts. When the temperature is higher than the set value, the fan 8 starts working, and when the temperature drops to the set value, the fan 8 stops working. The heater 4 in the liquid storage tank 3 and the fan 8 in the heat sink 7 are controlled by the controller, and the first temperature sensor and the second temperature sensor are respectively used to detect the coolant temperature in the liquid storage tank 3 and the heat sink 7, so that the circulation system can always keep the coolant temperature of the circulation system within the set value range, and its maximum floating value is less than 0.2°C, so that more accurate control of the coolant temperature can be achieved. It can be seen that, in combination with the actual working conditions of the radiator, the temperature of the coolant is controlled by the control program through the configured pressure gauge 11, flow sensor 12 and temperature transmitter 13, and the flow rate of the coolant is controlled by the delivery electromagnetic ball valve 10. In this way, the temperature and pressure of the coolant delivered to the test radiator 2 can be stably maintained at the set working parameter point, so that the radiator vibration test can be carried out under different parameter conditions, thereby obtaining test results that are more in line with actual working conditions.

[0024] In summary, by adopting the circulation system described in the present invention, by adding an external circulation system and utilizing an electrical control unit to control the liquid supply unit, by controlling the temperature, pressure and flow parameters of the coolant, it is possible to simulate high temperature and high pressure working conditions, so that the radiator vibration test can be carried out under different parameter conditions, thereby obtaining test results that are more in line with actual working conditions, providing more accurate data for improving the reliability design of the radiator, so as to meet the actual use needs of the radiator, having great practical significance, and being suitable for popularization and application.

[0025] The circulation system described in the present invention includes the heater 4, the automatic exhaust control valve 5, the centrifugal pump 6, the fan 8, the bypass electromagnetic ball valve 9, the delivery electromagnetic ball valve 10, the pressure gauge 11, the flow sensor 12, the temperature transmitter 13, the first temperature sensor and the second temperature sensor involved in the liquid supply unit, and the controller, the circuit breaker, the power converter and the intermediate relay involved in the electrical control unit, which are all commonly used equipment in the prior art. Their application in the present invention does not involve any changes to their specific structures, and therefore no detailed description is given for their specific models. As long as they match each other and can meet the use requirements, it is sufficient.

[0026] Other details of the present invention are conventional technologies known to those skilled in the art and are therefore not described in detail.

[0027] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. The above description is only a preferred implementation method of the present invention and does not limit the present invention. Any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present invention should be included in the protection scope of the technical solutions of the present invention.

Claims

1. A circulation system for a vibration test of an automobile radiator, comprising a vibration test bench and a test radiator installed in the vibration test bench, characterized in that: The circulation system also includes a liquid supply unit and an electrical control unit. The liquid supply unit is connected to the test radiator and is used to transport coolant for cooling the test radiator and to recover the coolant transported to the test radiator. The electrical control unit is connected to the liquid supply unit and is used to control and monitor the operation of the liquid supply unit.

2. A circulation system for automobile radiator vibration test according to claim 1, characterized in that: The liquid supply unit includes a liquid supply system, a cooling system and a centrifugal pump. The liquid supply system is connected to the cooling system through the centrifugal pump. The cooling system is connected to the test radiator and is used to transport coolant for cooling the test radiator. The liquid supply system is connected to the test radiator and is used to recover the coolant transported to the test radiator. The electrical control unit is respectively connected to the liquid supply system, the cooling system and the centrifugal pump, and is used to control and monitor the operation of the liquid supply system, the cooling system and the centrifugal pump.

3. A circulation system for automobile radiator vibration test according to claim 2, characterized in that: The liquid supply system includes a liquid storage tank, a recovery pipe, and a heater and a first temperature sensor arranged in the liquid storage tank. The heater is used to heat the coolant stored in the liquid storage tank, and the first temperature sensor is used to monitor the coolant temperature in the liquid storage tank. An automatic exhaust control valve is also provided on the top of the liquid storage tank. The liquid storage tank is connected to the cooling system through a centrifugal pump, and the liquid storage tank is connected to the test radiator through a recovery pipe, which is used to recover the coolant delivered to the test radiator; the heater, the first temperature sensor and the automatic exhaust control valve are electrically connected to the electrical control unit respectively.

4. A circulation system for automobile radiator vibration test according to claim 3, characterized in that: The cooling system includes a heat sink, a delivery pipeline, and a fan and a second temperature sensor arranged in the heat sink. The fan is used to cool the coolant delivered to the heat sink, and the second temperature sensor is used to monitor the coolant temperature in the heat sink. The heat sink is connected to a liquid storage tank in a liquid supply system through a centrifugal pump, and the heat sink is connected to a test radiator through a delivery pipeline, and is used to deliver coolant for cooling to the test radiator. The fan and the second temperature sensor are electrically connected to an electrical control unit, respectively.

5. A circulation system for automobile radiator vibration test according to claim 4, characterized in that: A bypass pipe is also provided between the liquid supply system and the cooling system, the input end of the bypass pipe is connected to the delivery pipe, and the output end thereof is communicated with the liquid storage tank, and a bypass electromagnetic ball valve is installed in the bypass pipe, and the bypass electromagnetic ball valve is electrically connected to the electrical control unit.

6. A circulation system for automobile radiator vibration test according to claim 5, characterized in that: A delivery electromagnetic ball valve, a pressure gauge, a flow sensor and a temperature transmitter are installed in the delivery pipeline. The delivery electromagnetic ball valve, the pressure gauge, the flow sensor and the temperature transmitter are respectively installed in the delivery pipeline along the delivery direction of the delivery pipeline and are respectively electrically connected to the electrical control unit.

7. A circulation system for automobile radiator vibration test according to claim 6, characterized in that: The electrical control unit includes a controller, a circuit breaker, a power converter and an intermediate relay. The controller is an integrated control and monitoring system with a display screen, and the intermediate relays are provided in plurality. The electrical control unit is electrically connected to an external 220V AC power supply through a circuit breaker, and the controller is electrically connected to the circuit breaker through a power converter. The controller is electrically connected to a centrifugal water pump, a heater and a fan through corresponding intermediate relays, respectively, and the first temperature sensor, the second temperature sensor, the automatic exhaust control valve, the bypass electromagnetic ball valve, the delivery electromagnetic ball valve, the pressure gauge, the flow sensor and the temperature transmitter are electrically connected to the controller, respectively. The controller controls the working states of the centrifugal water pump, the heater and the fan, respectively, according to the monitoring data information fed back by the first temperature sensor, the second temperature sensor, the pressure gauge, the flow sensor and the temperature transmitter, so as to provide the test radiator with coolant that meets the vibration test requirements.

8. A circulation system for automobile radiator vibration test according to claim 7, characterized in that: The test radiator includes a coolant input interface and a coolant output interface. The test radiator is connected to a delivery pipeline in a cooling system via the coolant input interface, and is used to deliver coolant for cooling to the test radiator. The coolant output interface is connected to a recovery pipeline in a liquid supply system, and is used to recover the coolant delivered to the test radiator, thereby realizing the recycling of the coolant.

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