Water pump voltage compensation test system

Abstract

The utility model discloses a water pump voltage compensation testing system, which relates to the technical field of water pump testing and specifically comprises a water pump testing module, a voltage compensation module, a main power supply and a water pump to be tested, the water pump testing module is connected with the water pump to be tested, and the main power supply is connected with the water pump to be tested through a main line. The main power supply is connected with the water pump test module and the voltage compensation module; the voltage compensation module is arranged between the main power supply and the water pump to be tested and comprises a voltage collector, a voltage comparison control module and an auxiliary power supply. According to the water pump voltage compensation test system, in order to solve the problems of overlarge line loss and large test result error caused by the overlarge line loss in the test process of the direct-current low-voltage running water pump, the actual power supply voltage input of the water pump is accurately regulated, controlled and detected by adding the voltage compensation test device outside the environment test box; and the accuracy of the water pump performance test is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water pump testing, in particular to a water pump voltage compensation testing system. Background Art

[0002] The water pump is an important component of many circulation systems such as the cooling system, water supply and drainage system, and is the heart of the automotive thermal management system and the household water circulation system. Functional testing of the water pump is the key to ensuring its normal operation during its life cycle. In the prior art, some systems for testing the performance of water pumps are disclosed, such as the solutions disclosed in the patent documents authorized by application numbers CN202310040547.3, CN202221207193.4 or CN202022922803.6. When the above scheme is in use, the performance of the water pump during operation is detected in real time through some testing equipment such as flow meters and temperature detectors, and the performance of the water pump to be tested is judged based on the real-time data analysis of the detection. However, since the loop line connecting the power output module of the industrial computer and the test prototype and related control modules is too long, and there are too many testing equipment or detection recording instruments in the line, the voltage difference on the line is too large, which causes the actual input voltage of the prototype to be much smaller than the power input, or cannot meet the test requirements, or cannot effectively simulate the complex working conditions of the water pump in actual use, affecting the accuracy of the functional test of the water pump; based on this, the present application proposes a water pump voltage compensation test system. Utility Model Content

[0003] The utility model provides a water pump voltage compensation test system, which solves the problem of large test result errors caused by excessive line loss during the water pump test process proposed in the background technology.

[0004] The utility model provides the following technical solutions: a water pump voltage compensation test system, comprising a water pump test module, a voltage compensation module, a main power supply and a water pump to be tested, wherein the water pump test module is connected to the water pump to be tested, the main power supply is connected to the water pump to be tested through a main line, and the main power supply is connected to the water pump test module and the voltage compensation module; the voltage compensation module is arranged between the main power supply and the water pump to be tested, and the voltage compensation module comprises a voltage collector, a voltage comparison control module and an auxiliary power supply;

[0005] The voltage collector is connected to the main line, and is used to collect the voltage of the main line in real time; the voltage comparison control module is connected to the voltage collector and the main power supply, and is used to collect real-time voltage data and rated voltage data required by the water pump to be tested, and compare the real-time voltage data with the rated voltage data;

[0006] The auxiliary power supply is connected to a voltage comparison control module, which controls the auxiliary power supply to output a difference compensation voltage. The auxiliary power supply is connected to the water pump to be tested through a branch line, and the auxiliary power supply outputs a difference compensation voltage to the water pump to be tested through the branch line.

[0007] Preferably, the main power supply is a low-voltage DC power supply, the voltage data output by the main power supply is collected by a voltage comparison control module, the voltage output by the main power supply is a rated voltage, and the voltage output by the main power supply is the voltage required by the test system for the water pump to be tested.

[0008] Preferably, the auxiliary power supply is a low-voltage DC power supply, and the auxiliary power supply is mounted on the water pump to be tested.

[0009] Preferably, the actual output voltage of the main power supply varies with the input voltage value given by the test system; the actual output voltage of the auxiliary power supply varies with the input voltage value given by the voltage comparison control module.

[0010] Preferably, it also includes an industrial computer, which is connected to both the main power supply and the water pump test module. The industrial computer is unidirectionally connected to the main power supply, and is bidirectionally connected to the water pump test module, and the input voltage value of the industrial computer is synchronously controlled with the actual output voltage of the main power supply.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The water pump voltage compensation test system aims to solve the problem of excessive line loss and large test result errors during the test of a water pump running at low DC voltage. By adding a voltage compensation test device outside the environmental test chamber, the actual power supply voltage input of the water pump can be accurately regulated and tested, effectively improving the accuracy of the water pump performance test.

[0013] 2. The water pump voltage compensation test system avoids the influence of voltage and current transmission loss in complex circuit loops on the test results by setting the required input voltage value of the main power supply and the actual output voltage for synchronous control.

[0014] 3. The water pump voltage compensation test system can accurately control the medium, flow, pressure and other parameters in the water pump, and can detect the head of the water pump under standard working voltage and ambient temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A framework diagram of a water pump voltage compensation test system provided by the utility model;

[0016] Figure 2 A framework diagram of a water pump voltage compensation test system provided in an embodiment of the utility model. DETAILED DESCRIPTION

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

[0018] The utility model provides a water pump voltage compensation test system, comprising a water pump test module, a voltage compensation module, a main power supply, a water pump to be tested and an industrial computer. The main power supply is connected to the water pump test module, the main power supply supplies power to the water pump test module, the industrial computer is bidirectionally connected to the water pump test module, the water pump test module is connected to the water pump to be tested, when the test system is in use, the industrial computer can control the water pump test module to work, the water pump test module can test the function of the water pump to be tested, and the performance parameters of the water pump detected by the water pump test module are fed back to the industrial computer, the industrial computer coordinates the flow, head, voltage and other operating data, and the staff can analyze the performance of the water pump using the operating data of the water pump.

[0019] The main power supply is connected to the water pump to be tested through the main line. The main power supply can supply power to the water pump to be tested. The industrial computer is unidirectionally connected to the main power supply. The industrial computer controls the main power supply to output the rated voltage according to the rated voltage required by the water pump test system, and the actual output voltage of the main power supply changes with the input voltage value given by the test system. The input voltage value of the industrial computer and the actual output voltage of the main power supply can be controlled synchronously to avoid the influence of voltage and current transfer losses in complex circuit loops on the test results.

[0020] The voltage compensation module is arranged between the main power supply and the water pump to be tested. The main power supply is connected to the voltage compensation module to supply power to the voltage compensation module. The voltage compensation module includes a voltage collector, a voltage comparison control module and an auxiliary power supply. The voltage collector is connected to the main line, and the voltage collector is used to collect the voltage of the main line in real time. The voltage comparison control module is connected to the voltage collector and the main power supply. The real-time voltage data collected by the voltage collector is uploaded to the voltage comparison control module. The voltage comparison control module collects the actual output voltage data of the main power supply. The voltage comparison control module collects the real-time voltage data and the rated voltage data required by the water pump to be tested, and compares the real-time voltage data with the rated voltage data, thereby obtaining the voltage loss value on the main line.

[0021] The auxiliary power supply is connected to the voltage comparison control module, which controls the auxiliary power supply to output the difference compensation voltage. The auxiliary power supply is connected to the water pump to be tested through a branch line, and the auxiliary power supply outputs the difference compensation voltage to the water pump to be tested through the branch line to ensure that the input voltage and power of the water pump to be tested are stable and operate normally.

[0022] The above-mentioned main power supply and auxiliary power supply are both low-voltage DC power supplies. The actual output voltage of the auxiliary power supply varies with the input voltage value given by the voltage comparison control module. In order to reduce the voltage loss on the branch line, the auxiliary power supply can be installed on the water pump to be tested.

[0023] From the above description, it can be seen that when the water pump voltage compensation test system is in use, the auxiliary power supply accurately compensates the power supply, accurately regulates and detects the actual power supply voltage input of the water pump to be tested, simulates the conditions of the water pump in actual use as much as possible, improves the accuracy and functionality of the test, and solves the problem of excessive line loss in the test process of the DC low-voltage water pump and the resulting large errors in the test results.

[0024] Below, the present application is further described through an embodiment of the present application.

[0025] A water pump voltage compensation test system disclosed in this embodiment includes a water pump test module, a voltage compensation module, a main power supply, a water pump to be tested and an industrial computer, and in this embodiment, the water pump test module includes a multi-channel temperature collector, a liquid storage barrel, a waste liquid storage barrel, a pneumatic valve and a flow monitoring and feedback unit. A multi-channel temperature acquisition instrument is connected to the water pump to be tested. The multi-channel temperature acquisition instrument is used to perform real-time detection of the temperature of the water pump to be tested, and upload the detected data to the industrial computer; the liquid inlet end of the water pump to be tested extends to the inner cavity of the liquid storage barrel through the water inlet pipe, and a thermostat is arranged in the liquid storage barrel, and the temperature of the medium water sample is controlled by the thermostat; the liquid outlet end of the water pump to be tested is connected to the waste liquid storage barrel through the water outlet pipe, and a filter is arranged between the waste liquid storage barrel and the liquid storage barrel, and the impurities in the water are filtered by the filter, so that the water can be reused and resources are saved; a proportional control valve, a flow meter and a pneumatic valve are arranged on the water inlet pipe in sequence, and the pneumatic valve is located on the side of the flow meter close to the water pump to be tested; when the system is in use, the proportional control valve can be used to adjust the pressure of the medium water sample flowing in the water inlet pipe, and the flow meter can be used to perform real-time detection of the flow of the medium water sample flowing in the water inlet pipe, and the flow monitoring and feedback unit is arranged on the water outlet pipe.

[0026] When the water pump voltage compensation test system disclosed in this embodiment is in use, the pneumatic valve is opened, the experimental conditions of the test system are set, the main power supply is turned on, the main power supply supplies power to the test system, and the industrial computer issues instructions to the main power supply so that the voltage output by the main power supply to the water pump to be tested is the rated voltage of the water pump to be tested required by the test system. When the water pump to be tested is powered on, the water pump to be tested works. When the water pump to be tested works, the water pump to be tested can pump the water in the liquid storage barrel into the waste liquid storage barrel, and use the flow monitoring and feedback unit to perform real-time detection of the pumping performance of the water pump to be tested, and the multi-channel temperature acquisition instrument performs real-time detection of the temperature of the water pump to be tested, and feeds back the detection data to the industrial computer. The industrial computer replenishes the liquid storage tank according to demand, and can control the temperature, flow, pressure and other parameters of the medium water sample in the water pump.

[0027] When the water pump to be tested is working, the voltage compensation module works, the power compensation module collects real-time voltage data through the voltage collector, and the voltage comparison module compares the collected real-time voltage data with the rated voltage required by the industrial computer, calculates the voltage loss on the main line, and requires the auxiliary power supply to output the difference compensation voltage to ensure that the input voltage and power of the water pump to be tested are stable and operate normally.

[0028] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art and will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A water pump voltage compensation test system, comprising a water pump test module, a voltage compensation module, a main power supply and a water pump to be tested, characterized in that: The water pump test module is connected to the water pump to be tested, the main power supply is connected to the water pump to be tested through the main line, and the main power supply is connected to the water pump test module and the voltage compensation module; the voltage compensation module is arranged between the main power supply and the water pump to be tested, and the voltage compensation module includes a voltage collector, a voltage comparison control module and an auxiliary power supply; The voltage collector is connected to the main line, and is used to collect the voltage of the main line in real time; the voltage comparison control module is connected to the voltage collector and the main power supply, and is used to collect real-time voltage data and rated voltage data required by the water pump to be tested, and compare the real-time voltage data with the rated voltage data; The auxiliary power supply is connected to a voltage comparison control module, which controls the auxiliary power supply to output a difference compensation voltage. The auxiliary power supply is connected to the water pump to be tested through a branch line, and the auxiliary power supply outputs a difference compensation voltage to the water pump to be tested through the branch line.

2. A water pump voltage compensation test system according to claim 1, characterized in that: The main power supply is a low-voltage DC power supply. The voltage data output by the main power supply is collected by a voltage comparison control module. The voltage output by the main power supply is a rated voltage, and the voltage output by the main power supply is the voltage required by the test system to give the water pump to be tested.

3. A water pump voltage compensation test system according to claim 1, characterized in that: The auxiliary power supply is a low-voltage direct current power supply, and the auxiliary power supply is assembled on the water pump to be tested.

4. A water pump voltage compensation test system according to claim 1, characterized in that: The actual output voltage of the main power supply varies with the input voltage value given by the test system; the actual output voltage of the auxiliary power supply varies with the input voltage value given by the voltage comparison control module.

5. A water pump voltage compensation test system according to claim 1, characterized in that: It also includes an industrial computer, which is connected to both the main power supply and the water pump test module. The industrial computer is unidirectionally connected to the main power supply, and is bidirectionally connected to the water pump test module. The input voltage value of the industrial computer is synchronously controlled with the actual output voltage of the main power supply.

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