CN202024891U - Electron thermostat tester - Google Patents

Abstract

Translated fromChinese

本实用新型公开了一种电子节温器测试仪，包括恒温水箱、散热器，所述的恒温水箱、散热器以及电子节温器相互之间均通过保温流通管道连接，所述的保温流通管道上设有流量计和传感器，所述的流量计和传感器通过数据采集模块和信号反馈模块与控制计算机连接。本实用新型所提供的电子节温器测试仪设计合理，结构简单，可以检测电子节温器各个通道的流通体积流量、阀门行程与冷却水温度之间的对应关系、阀门有效行程范围内的最短时间，最终形成水温、流量与阀门行程之间的三维图，使用户能直观的观察电子节温器的性能，同时所检测的数据与控制计算机连通，控制计算机能快速准确的提取试验数据并对试验数据做出分析和自动记录，方便用户随时调取采用。

The utility model discloses an electronic thermostat tester, which comprises a constant temperature water tank and a radiator. The constant temperature water tank, the radiator and the electronic thermostat are connected to each other through heat preservation circulation pipes. The heat preservation circulation pipes A flow meter and a sensor are arranged on it, and the flow meter and sensor are connected with the control computer through a data acquisition module and a signal feedback module. The electronic thermostat tester provided by the utility model has a reasonable design and a simple structure, and can detect the circulation volume flow rate of each channel of the electronic thermostat, the corresponding relationship between the valve stroke and the cooling water temperature, and the shortest value within the effective stroke range of the valve. Time, and finally form a three-dimensional map between the water temperature, flow rate and valve stroke, so that users can intuitively observe the performance of the electronic thermostat, and at the same time, the detected data is connected with the control computer, which can quickly and accurately extract test data and analyze The test data is analyzed and automatically recorded, which is convenient for users to call and use at any time.

Description

Translated fromChinese

电子节温器测试仪Electronic thermostat tester

技术领域technical field

本实用新型涉及一种电子节温器测试仪，具体涉及一种汽、柴油机冷却系统中控制大小循环系统的电子节温器的测试装置。The utility model relates to a tester for an electronic thermostat, in particular to a test device for an electronic thermostat for controlling the large and small circulation systems in the cooling system of a gasoline and diesel engine.

背景技术Background technique

任何一台发动机都离不开冷却系统，发动机的冷却系统根据冷却水是否流过散热器分为冷却水大、小循环系统，而在发动机中控制冷却水大、小循环系统的部件就是节温器，而为了能让发动机在最佳的冷却环境下工作，通常需要对节温器中各个管路冷却水流通流量、内部阀座升程时间比、加热电阻丝功率等进行检测并评价。现代汽车发动机对冷却系统的要求越来越严格，特别是在对发动机工况能更加的响应迅速上，因此带有电热阻丝的电子节温器成为发展趋势。但是，目前传统节温器在市场上所占率非常高，因此所出现的节温器测试装置都是针对传统节温器的，且只能测量各个节温器在稳态温度下所实现的各个管路流通冷却水流量是否达标。电子节温器之所以较传统节温器有着更快的响应速率是因为其内部有加热电阻丝，可快速加热节温器内部的膨胀元件（蜡或乙醚等），使阀座升起实现大、小循环系统的切换，保证发动机在每个工况下都能得到最佳的冷却。因此电子节温器成为节温器的发展趋势，所占有的市场份额也在逐渐上升，但目前市场上缺乏相应的检测设备以至于产品质量的界定没有可行性，因此研制电子节温器性能的测试装置迫在眉睫。Any engine is inseparable from the cooling system. The cooling system of the engine is divided into large and small cooling water circulation systems according to whether the cooling water flows through the radiator. The part that controls the large and small cooling water circulation systems in the engine is the thermostat. In order to allow the engine to work in the best cooling environment, it is usually necessary to detect and evaluate the cooling water flow rate of each pipeline in the thermostat, the lift time ratio of the internal valve seat, and the power of the heating resistance wire. Modern automobile engines have more and more stringent requirements on cooling systems, especially in terms of faster response to engine operating conditions, so electronic thermostats with electric resistance wires have become a development trend. However, the current market share of traditional thermostats is very high, so the thermostat test devices that appear are all aimed at traditional thermostats, and can only measure the temperature achieved by each thermostat at a steady state temperature. Whether the flow rate of cooling water in each pipeline is up to standard. The reason why the electronic thermostat has a faster response rate than the traditional thermostat is that there is a heating resistance wire inside, which can quickly heat the expansion element (wax or ether, etc.) inside the thermostat, so that the valve seat can rise to achieve a large , The switching of the small circulation system ensures that the engine can get the best cooling under each working condition. Therefore, electronic thermostats have become the development trend of thermostats, and their market share is gradually increasing. However, the lack of corresponding testing equipment in the market currently makes it impossible to define product quality. Therefore, the development of electronic thermostat performance The test unit is imminent.

发明内容Contents of the invention

针对现有技术的不足，本实用新型提供了一种专门用于检测电子节温器的电子节温器测试仪，所述的电子节温器测试仪可对电子节温器的流通流量、阀座升程、响应时间等重要参数进行检测与评价。Aiming at the deficiencies of the prior art, the utility model provides an electronic thermostat tester specially used for testing the electronic thermostat, and the electronic thermostat tester can measure the flow rate, valve Important parameters such as seat lift and response time are tested and evaluated.

为实现上述目的，本实用新型提供了一种电子节温器测试仪，包括恒温水箱、散热器，所述的恒温水箱、散热器以及电子节温器相互之间均通过保温流通管道连接，所述的保温流通管道上设有流量计和传感器，所述的流量计和传感器均与控制计算机连接。In order to achieve the above purpose, the utility model provides an electronic thermostat tester, which includes a constant temperature water tank and a radiator. A flow meter and a sensor are arranged on the thermal insulation circulation pipeline, and the flow meter and the sensor are all connected with a control computer.

本实用新型可进一步设置为所述的流量计和传感器通过数据采集模块和信号反馈模块与控制计算机连接。The utility model can be further configured such that the flow meter and the sensor are connected with the control computer through the data acquisition module and the signal feedback module.

本实用新型的有益效果是：本实用新型所提供的电子节温器测试仪设计合理，结构简单，可以检测电子节温器各个通道的流通体积流量、阀门行程与冷却水温度之间的对应关系、阀门有效行程范围内的最短时间，最终形成水温、流量与阀门行程之间的三维图，使用户能直观的观察电子节温器的性能，同时所检测的数据与控制计算机连通，控制计算机能快速准确的提取试验数据并对试验数据做出分析和自动记录，方便用户随时调取采用。The beneficial effects of the utility model are: the electronic thermostat tester provided by the utility model has a reasonable design and a simple structure, and can detect the corresponding relationship between the circulation volume flow rate of each channel of the electronic thermostat, the valve stroke and the cooling water temperature , the shortest time within the effective stroke range of the valve, and finally form a three-dimensional map between the water temperature, flow and valve stroke, so that the user can intuitively observe the performance of the electronic thermostat, and at the same time the detected data is connected with the control computer, and the control computer can Quickly and accurately extract test data, analyze and automatically record the test data, which is convenient for users to call and use at any time.

附图说明Description of drawings

图1为本实用新型的结构示意图；Fig. 1 is the structural representation of the utility model;

图2为本实用新型的原理框图。Fig. 2 is a functional block diagram of the utility model.

具体实施方式Detailed ways

如图1、2所示给出了一种电子节温器测试仪，包括恒温水箱1、散热器2，所述的恒温水箱1、散热器2以及电子节温器3相互之间均通过保温流通管道4连接，所述的保温流通管道4上设有流量计5和传感器6，所述的流量计5和传感器6通过数据采集模块和信号反馈模块与控制计算机连接，恒温水箱1与电子节温器3相互之间通过保温流通管道4连接构成小循环系统，恒温水箱1、散热器2与电子节温器3相互之间通过保温流通管道4连接构成大循环系统。恒温水箱1用来模拟发动机缸内热量源，可输出0～100℃范围内的水，且大功率恒温水箱1可以在很短的时间内加热冷却水至最高温度，完全可以模拟发动机的瞬态工况。所述的保温流通管道4可保证循环水在其内部温度变化不大，保证测量精确度。所述的散热器2可优选双级散热器结构，可以实现快速降低冷却水温度的作用。流量计5采用液体体积流量计，用来测量流经电子节温器3的总流量和流经大、小循环口的冷却循环水流量。电子节温器3上还连接有电源7，电源7用来输出一定功率的电能，用来加热电子节温器3中的热电阻，使其能快速加热电子节温器3内部的膨胀元件（蜡或乙醚等），使膨胀元件（蜡或乙醚等）膨胀至打开相应循环通道。本实用新型所提供的电子节温器测试仪能脱离发动机来模拟发动机热平衡状态和瞬态状态下所需的各种冷却水温度，以此对电子节温器3各种工作性能进行检测，操作方便，数据采集准确、快速。此外信号反馈模块还能根据既定算法规则反馈控制加热电源7功率的输出，用来实时快速调整电子节温器3阀杆升至既定升程，控制计算机可以随时记录各类数据，并以成图的方式实现人性化监测。As shown in Figures 1 and 2, an electronic thermostat tester is provided, which includes a constanttemperature water tank 1 and a radiator 2. The circulation pipeline 4 is connected, and the heat preservation circulation pipeline 4 is provided with aflow meter 5 and asensor 6. Theflow meter 5 and thesensor 6 are connected to the control computer through a data acquisition module and a signal feedback module, and the constanttemperature water tank 1 is connected to the electronic section. The thermostats 3 are connected to each other through the heat preservation circulation pipe 4 to form a small circulation system, and the constanttemperature water tank 1, the radiator 2 and the electronic thermostat 3 are connected to each other through the heat preservation circulation pipe 4 to form a large circulation system. The constanttemperature water tank 1 is used to simulate the heat source in the engine cylinder, and can output water within the range of 0-100°C, and the high-power constanttemperature water tank 1 can heat the cooling water to the highest temperature in a very short time, which can completely simulate the transient state of the engine working conditions. The thermal insulation circulation pipe 4 can ensure that the internal temperature of the circulating water does not change much, so as to ensure the measurement accuracy. The radiator 2 can be preferably a two-stage radiator structure, which can achieve the effect of rapidly reducing the temperature of the cooling water. Theflow meter 5 adopts a liquid volume flow meter, which is used to measure the total flow flowing through the electronic thermostat 3 and the cooling circulating water flow flowing through the large and small circulation ports. The electronic thermostat 3 is also connected with apower supply 7, and thepower supply 7 is used to output electric energy of a certain power to heat the thermal resistance in the electronic thermostat 3, so that it can quickly heat the expansion element inside the electronic thermostat 3 ( Wax or ether, etc.), so that the expansion element (wax or ether, etc.) expands to open the corresponding circulation channel. The electronic thermostat tester provided by the utility model can be separated from the engine to simulate various cooling water temperatures required in the thermal balance state and transient state of the engine, so as to detect various working performances of the electronic thermostat 3 and operate Convenient, accurate and fast data collection. In addition, the signal feedback module can also feed back and control the output of theheating power supply 7 according to the established algorithm rules, which can be used to quickly adjust the valve stem of the electronic thermostat 3 to a predetermined lift in real time. The control computer can record various data at any time, and form a graph The way to achieve humanized monitoring.

电子节温器测试仪的测试过程及原理是：首先恒温水箱1将内部冷却液进行加热。在温度较低的过程中，电子节温器3只打开小循环系统，控制计算机收集流量计5及传感器6的信号数据。当恒温水箱1温度继续上升至某一温度时（这个温度可根据所检测电子节温器3数据而设定），电子节温器3内部的膨胀元件（蜡或乙醚等）开始膨胀，当温度继续上升时电子节温器3内部的阀座开始升起，当恒温水箱1的温度加热到既定最高温度时阀座完全打开，大循环通道完全畅通。这时，数据采集模块收集来自于各个流量计5和传感器6的信号，并进行记录，且通过大循环通路的流量来反映电子节温器3阀杆上升的幅度。控制计算机及内部程序在通过检测以上数据与被测电子节温器3的标准数据进行对比，进而得出评价。以上检测过程为针对电子节温器3在稳态过程中的性能检测。The testing process and principle of the electronic thermostat tester are as follows: first, the constanttemperature water tank 1 heats the internal coolant. When the temperature is low, the electronic thermostat 3 only opens the small circulation system, and the control computer collects the signal data of theflowmeter 5 and thesensor 6 . When the temperature of the constanttemperature water tank 1 continues to rise to a certain temperature (this temperature can be set according to the detected data of the electronic thermostat 3), the expansion element (wax or ether, etc.) inside the electronic thermostat 3 begins to expand. When continuing to rise, the valve seat inside the electronic thermostat 3 begins to rise, and when the temperature of the constanttemperature water tank 1 is heated to a predetermined maximum temperature, the valve seat is fully opened, and the large circulation channel is completely unblocked. At this time, the data acquisition module collects and records the signals from thevarious flowmeters 5 andsensors 6, and reflects the rising range of the valve stem of the electronic thermostat 3 through the flow of the large circulation path. The control computer and the internal program compare the above data with the standard data of the electronic thermostat 3 under test to obtain an evaluation. The above detection process is aimed at the performance detection of the electronic thermostat 3 in the steady state process.

当需要检测电子节温器3的响应特性时，大功率恒温水箱1开始快速的将内部的冷却液进行加热至高温状态，此时电源7开始对电子节温器3内部的电热阻丝进行加热，使其内部的膨胀元件（蜡或乙醚等）加速膨胀，迅速提升阀杆，打开大循环系统通道。在此过程中数据采集模块收集所有的传感器6和流量计5的信号以及电源7的输出电流信号。从电源7有输出信号开始到大循环系统通道完全打开的时间作为电子节温器3的响应时间。控制计算机及内部程序通过检测各项数据与电子节温器3的标准数据进行对比，得出评价。以上检测过程为电子节温器3在加速瞬态过程中的性能检测。When it is necessary to detect the response characteristics of the electronic thermostat 3, the high-power constanttemperature water tank 1 starts to quickly heat the internal coolant to a high temperature state, and at this time thepower supply 7 starts to heat the electric resistance wire inside the electronic thermostat 3 , to accelerate the expansion of the internal expansion element (wax or ether, etc.), quickly lift the valve stem, and open the large circulation system channel. During this process, the data acquisition module collects all the signals of thesensor 6 and theflowmeter 5 and the output current signal of thepower supply 7 . The time from when thepower supply 7 has an output signal to when the channel of the large circulation system is fully opened is taken as the response time of the electronic thermostat 3 . The control computer and internal program compare the various data detected with the standard data of the electronic thermostat 3 to obtain an evaluation. The above detection process is the performance detection of the electronic thermostat 3 in the acceleration transient process.

此外，还可根据大循环系统通道流量的变化是否适应冷却液温度的变化（即电子节温器3的响应时间是否达标）来反馈控制可调电源7，让其加大输出电流，增加电子节温器3的响应时间，从而判断出该被测电子节温器3内部的加热阻丝的功率值要提高多少。In addition, theadjustable power supply 7 can also be feedback-controlled according to whether the change of the channel flow rate of the large circulation system adapts to the change of the coolant temperature (that is, whether the response time of the electronic thermostat 3 meets the standard), so that it can increase the output current and increase the electronic energy saving. The response time of the thermostat 3 can be used to determine how much the power value of the heating resistance wire inside the electronic thermostat 3 under test should be increased.

Claims (2)

1. electronic thermostat tester, it is characterized in that: comprise constant temperature water tank, heating radiator, described constant temperature water tank, heating radiator and electronic thermostat all connect by the insulation circulation duct each other, described insulation circulation duct is provided with flowmeter and sensor, and described flowmeter all is connected with control computer with sensor.

2. electronic thermostat tester according to claim 1 is characterized in that: described flowmeter is connected with control computer with the signal feedback module by data acquisition module with sensor.

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