Electric air pump testing system and testing method thereof

Abstract

The invention discloses an electric air pump testing system and a testing method thereof. The electric air pump testing system comprises a main control module, an electric control multi-way valve group, an electric air pump and a plurality of air cylinders. Wherein the electric control multi-way valve group and the electric air pump are electrically connected with the main control module; the electric control multi-way valve group is connected with the electric air pump and the plurality of air cylinders through air paths, and is used for independently controlling the conducting state or the blocking state of the air paths of the air cylinders according to an instruction of the main control module; the electric air pump is used for supplying air to the air bottle in a conducting state; the main control module is used for collecting working performance parameters of the electric air pump in the working process. Thus, by arranging the electric control multi-way valve group, the main control module uniformly controls the conduction or blocking state of the gas paths of the gas cylinders, and automatic switching of the gas cylinders is achieved. The electric air pump can be used for sequentially carrying out inflation test on air cylinders with different volumes or pressure settings without manual intervention, so that the test period is remarkably shortened, and the test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of electric air pump testing technology, and in particular to an electric air pump testing system and testing method. Background Technology

[0002] Electric air pumps, as devices that convert mechanical energy into gas pressure energy, are widely used in vehicle maintenance, industrial equipment gas supply, and household air filling equipment. In the research, development, production, and quality testing of electric air pumps, comprehensive testing of their performance parameters (such as operating voltage, operating current, response time, and temperature rise characteristics) is a crucial step in ensuring product reliability and consistency.

[0003] In existing electric air pump tests, the electric air pump is usually connected directly to the tire to be inflated. For example, the operator needs to connect the output interface of the electric air pump to different types of tires such as bicycle tires and car tires through air hoses to test inflation and record various test data, resulting in low testing efficiency of electric air pumps. Summary of the Invention

[0004] This application provides an electric air pump testing system and method, which can solve at least one of the above-mentioned technical problems.

[0005] In a first aspect, embodiments of this application provide an electric air pump testing system, including a main control module, an electrically controlled multi-way valve group, an electric air pump, and multiple air cylinders;

[0006] Among them, the electrically controlled multi-way valve group and the electric air pump are both electrically connected to the main control module;

[0007] The electronically controlled multi-way valve group is connected to an electric air pump and multiple gas cylinders through an air circuit, and is used to independently control the conduction or blockage status of the air circuit of each gas cylinder according to the instructions of the main control module.

[0008] An electric air pump is used to supply air to a gas cylinder that is in the conductive state;

[0009] The main control module is used to collect the working performance parameters of the electric air pump during operation.

[0010] In some embodiments, the electrically controlled multi-way valve group includes multiple solenoid valves, a first pipeline and multiple second pipelines. The multiple solenoid valves are all electrically connected to the main control module. Each solenoid valve is connected to the outlet of the electric air pump through the first pipeline. Each solenoid valve corresponds to a second pipeline and a gas cylinder. Each solenoid valve is connected to the corresponding gas cylinder through the corresponding second pipeline.

[0011] In some implementations, the electrically controlled multi-way valve assembly also includes multiple pressure relief lines, each corresponding to a solenoid valve and a gas cylinder. The pressure relief lines are used to release the residual pressure in the corresponding gas cylinder after the test is completed.

[0012] In some embodiments, the electric air pump testing system further includes a first pressure sensor electrically connected to the main control module. The first pressure sensor is used to measure the first pressure information of the first pipeline and transmit the first air pressure information to the main control module.

[0013] In some embodiments, the electric air pump testing system also includes multiple second pressure sensors, all of which are electrically connected to the main control module. Each gas cylinder is equipped with a second pressure sensor, and each second pressure sensor is used to measure the second air pressure information of the corresponding gas cylinder and send the second air pressure information to the main control module.

[0014] In some implementations, the electric air pump testing system also includes a power supply module, which is electrically connected to the main control module, the electrically controlled multi-way valve group, and the electric air pump. The power supply module is used to supply power to the main control module, the electrically controlled multi-way valve group, and the electric air pump. The main control module is also used to collect voltage information, current information, and operating time of the electric air pump during the power supply process of the power supply module.

[0015] In some implementations, the electric air pump testing system also includes a noise sensor electrically connected to the main control module. The noise sensor is used to detect noise information of the electric air pump during the testing process and send the noise information to the main control module.

[0016] In some implementations, there are multiple electric air pumps.

[0017] In some implementations, the volumes of the multiple gas cylinders may be the same or different.

[0018] Secondly, this application provides an electric air pump testing method, applied to the electric air pump testing system of any of the above embodiments. The main control module is used to execute the following method steps, and the testing method includes:

[0019] Receive test instructions;

[0020] Based on the test command, the electronically controlled multi-way valve group is controlled to open the gas path corresponding to the target gas cylinder under test, so that the gas path corresponding to the target gas cylinder under test is in the open state, wherein the target gas cylinder under test is at least one of multiple gas cylinders;

[0021] The electric air pump is started to supply air to the target gas cylinder in the conductive state to conduct the test, and the test results of the electric air pump are obtained. The test results include the working performance parameters of the electric air pump.

[0022] The electric air pump testing system and method provided in this application include a main control module, an electrically controlled multi-way valve group, an electric air pump, and multiple gas cylinders. The electrically controlled multi-way valve group and the electric air pump are electrically connected to the main control module. The electrically controlled multi-way valve group is connected to the electric air pump and multiple gas cylinders via air passages and is used to independently control the conduction or blockage state of the air passages of each gas cylinder according to the instructions of the main control module. The electric air pump supplies air to the gas cylinders in the conduction state. The main control module collects the operating performance parameters of the electric air pump during operation. Traditional testing methods rely on manual replacement of the air source load (such as different tires), which is cumbersome and time-consuming. This invention, by setting up an electrically controlled multi-way valve group, allows the main control module to uniformly control the conduction or blockage state of the air passages of each gas cylinder, achieving automatic switching between multiple gas cylinders. The electric air pump can sequentially perform inflation tests on gas cylinders with different volumes or pressure settings without manual intervention, significantly shortening the testing cycle and improving testing efficiency. Furthermore, using standardized gas cylinders as the load, instead of actual tires, avoids test deviations caused by factors such as tire type, initial air pressure, and ambient temperature. Parameters such as cylinder volume and initial pressure can be precisely set and reused, ensuring that each test is conducted under identical conditions, improving the comparability and accuracy of test data. Moreover, multiple gas cylinders can be combined in different ways to simulate load characteristics under various real-world application scenarios (such as small-volume high pressure, large-volume low pressure, etc.). The main control module can control the electrically controlled multi-way valve group according to a preset program, enabling the electric air pump to operate continuously under different load conditions, comprehensively collecting its performance parameters under various operating conditions, and achieving a systematic evaluation of key indicators such as electric air pump response time, output flow rate, energy consumption characteristics, and temperature rise trend. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the electric air pump testing system provided in the embodiments of this application.

[0025] Figure 2 This is a flowchart illustrating the electric air pump testing method provided in an embodiment of this application.

[0026] Explanation of icon numbers:

[0027] 10. Electric air pump testing system; 100. Main control module; 200. Electrically controlled multi-way valve assembly; 300. Electric air pump; 400. Gas cylinder;

[0028] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0030] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figure 1 This application proposes an electric air pump testing system 10, which includes a main control module 100, an electrically controlled multi-way valve group 200, an electric air pump 300, and multiple gas cylinders 400. The electrically controlled multi-way valve group 200 and the electric air pump 300 are both electrically connected to the main control module 100. The electrically controlled multi-way valve group 200 is connected to the electric air pump 300 and the multiple gas cylinders 400 via air passages, and is used to independently control the conduction or blockage state of the air passages of each gas cylinder 400 according to the instructions of the main control module 100. The electric air pump 300 is used to supply air to the gas cylinders 400 in the conduction state. The main control module 100 is used to collect the operating performance parameters of the electric air pump 300 during operation.

[0034] Traditional testing methods rely on manual replacement of the air source load (such as different tires), which is cumbersome and time-consuming. This invention addresses this by setting up an electrically controlled multi-way valve group 200, with the main control module 100 centrally controlling the opening and closing states of the air passages of each gas cylinder 400, enabling automatic switching between multiple gas cylinders 400. The electric air pump 300 can sequentially perform inflation tests on gas cylinders 400 with different volumes or pressure settings without manual intervention, significantly shortening the testing cycle and improving testing efficiency.

[0035] Furthermore, using a standardized gas cylinder 400 as the load instead of the actual tire avoids test deviations caused by factors such as tire type, initial air pressure, and ambient temperature. The volume, initial pressure, and other parameters of the gas cylinder 400 can be precisely set and reused, ensuring that each test is conducted under identical conditions, thus improving the comparability and accuracy of the test data.

[0036] Furthermore, multiple gas cylinders 400 can be combined in different ways to simulate the load characteristics of various practical application scenarios (such as small-volume high pressure, large-volume low pressure, etc.). The main control module 100 can control the electrically controlled multi-way valve group 200 according to a preset program, so that the electric air pump 300 can operate continuously under different load conditions, comprehensively collect its working performance parameters under various working conditions, and realize a systematic evaluation of key indicators such as response time, output flow, energy consumption characteristics, and temperature rise trend of the electric air pump 300.

[0037] The electric air pump testing system 10 eliminates the need for frequent replacement of real tires or manual connection of air lines by operators, reducing equipment wear and tear and the risk of human error. Furthermore, multiple air cylinders 400 can be reused for extended periods, lowering testing consumable costs and making it suitable for online testing in high-volume production environments.

[0038] The main control module 100 serves as the control core of the electric air pump testing system 10, undertaking signal processing, logic judgment, and command issuance functions. The electrically controlled multi-way valve group 200 and the electric air pump 300 are both electrically connected to the main control module 100, receiving control signals from the main control module 100 and feeding back their operating status to the main control module 100.

[0039] The electrically controlled multi-way valve assembly 200 integrates multiple solenoid valves and air passages, and has multiple input and output interfaces. The electrically controlled multi-way valve assembly 200 is connected to the outlet of the electric air pump 300 and the inlet of each gas cylinder 400 via air passages. Based on commands from the main control module 100, the electrically controlled multi-way valve assembly 200 independently controls the on / off state of the air passage to each gas cylinder 400. When a gas passage is open, gas can flow from the electric air pump 300 to the corresponding gas cylinder 400; when a gas passage is blocked, the gas cylinder 400 is isolated from other parts of the electric air pump testing system 10 to prevent gas backflow or pressure leakage.

[0040] An electric air pump 300 is installed in a fixed position within the electric air pump testing system 10. The air inlet of the electric air pump 300 is connected to the external atmosphere or a filter device, and the air outlet of the electric air pump 300 is connected to the common output port of the electrically controlled multi-way valve assembly 200. Under the control of the main control module 100, the electric air pump 300 starts operating, converting mechanical energy into gas pressure energy to continuously deliver compressed gas into the gas cylinder 400, which is in a conductive state. The operating mode of the electric air pump 300 can be set to continuous operation, intermittent operation, or variable frequency operation according to testing requirements to simulate different usage scenarios.

[0041] Multiple gas cylinders 400 are fixed on the test platform of the electric air pump test system 10 according to a predetermined layout. The volume, rated pressure, and initial air pressure of each gas cylinder 400 can be preset. As standardized load units, the gas cylinders 400 replace tires used in traditional testing, providing stable and repeatable inflatable objects. Different gas cylinders 400 can represent different types of air-using equipment, such as small-volume bicycle tires simulating loads and large-volume car tires simulating loads, thereby enabling rapid switching and testing of multiple load types.

[0042] The main control module 100 has a built-in data acquisition unit and control logic program. The main control module 100 collects various performance parameters of the electric air pump 300 in real time during operation, including but not limited to operating voltage, operating current, start / stop response time, cumulative running time, motor temperature, and exhaust pressure. The collected data is stored in an internal storage unit and can be transmitted to an external monitoring terminal or data analysis system via a communication interface.

[0043] The main control module 100 automatically executes the test task according to the preset test procedure. At the start of the test, the main control module 100 first sends a command to the electrically controlled multi-way valve group 200 to select the gas path corresponding to the target gas cylinder 400 to be opened, while keeping the other gas paths closed. Then, the main control module 100 starts the electric air pump 300 to begin filling one or more target gas cylinders 400 with gas. During the filling process, the main control module 100 continuously records the current change curve and pressure rise rate of the electric air pump 300 to evaluate its dynamic response capability.

[0044] Once the target gas cylinder 400 reaches the preset pressure value or completes the specified filling time, the main control module 100 stops the electric air pump 300 and controls the electronically controlled multi-way valve group 200 to switch to the gas path of the next gas cylinder 400, repeating the above test process. The entire test process requires no manual intervention and can achieve fully automatic cyclic testing.

[0045] In some embodiments, the electrically controlled multi-way valve group 200 includes multiple solenoid valves, a first pipeline and multiple second pipelines. The multiple solenoid valves are electrically connected to the main control module 100. Each solenoid valve is connected to the outlet of the electric air pump 300 through the first pipeline. Each solenoid valve corresponds to a second pipeline and a gas cylinder 400. Each solenoid valve is connected to the corresponding gas cylinder 400 through the corresponding second pipeline.

[0046] The electrically controlled multi-way valve assembly 200 consists of multiple solenoid valves, a first pipeline, and multiple second pipelines, used to selectively connect the electric air pump 300 with multiple gas cylinders 400. This electrically controlled multi-way valve assembly 200 serves as the control hub for gas flow, dynamically switching the gas supply path according to testing requirements.

[0047] Multiple solenoid valves are arranged in an array or modular manner on the valve body mounting plate. Each solenoid valve has an independent electrical control interface and pneumatic channel. All solenoid valves are connected to the output port of the main control module 100 via wires, receiving switching commands from the main control module 100 to achieve precise control of the on / off state of their respective air paths. The operating status of each solenoid valve is programmed and managed by the main control module 100 according to a preset test procedure, supporting single opening, sequential opening, or multi-channel parallel operation modes.

[0048] The first pipeline is a shared air supply channel. One end connects to the outlet of the electric air pump 300, and the other end is connected in parallel to the inlet of each solenoid valve. This first pipeline evenly distributes the compressed gas output from the electric air pump 300 to the input side of each solenoid valve, ensuring a stable air supply when any solenoid valve is open. The first pipeline is made of pressure-resistant metal or high-strength engineering plastic tubing, possessing excellent sealing performance and fatigue resistance, and is suitable for working environments with frequent start-stop cycles and pressure fluctuations.

[0049] Each second pipeline serves as an independent branch gas path, connecting the outlet of a solenoid valve to the inlet of a gas cylinder 400. Multiple second pipelines are arranged radially to avoid mutual interference. Each second pipeline is equipped with a pressure sensor and a check valve. The pressure sensor monitors pressure changes within the corresponding gas cylinder 400 in real time and feeds the data back to the main control module 100; the check valve prevents gas from flowing back from the gas cylinder 400 to the solenoid valve, ensuring system safety and the accuracy of test results.

[0050] When the main control module 100 initiates a test task, it sends an opening signal to the target solenoid valve. The valve core inside the solenoid valve actuates, connecting the first pipeline with the corresponding second pipeline, forming a complete airflow channel from the electric air pump 300 to the designated gas cylinder 400. At this time, the compressed gas output by the electric air pump 300 enters the target gas cylinder 400 through the first pipeline, the open solenoid valve, and the second pipeline, completing the filling process. The remaining unselected solenoid valves remain closed, and their corresponding gas cylinders 400 are isolated and do not participate in the current test.

[0051] In some embodiments, the electrically controlled multi-way valve assembly 200 also includes multiple pressure relief lines, each corresponding to a solenoid valve and a gas cylinder 400, the pressure relief lines being used to release the residual pressure in the corresponding gas cylinder 400 after the test is completed.

[0052] The electrically controlled multi-way valve assembly 200 further integrates multiple pressure relief lines to safely and controllably release the residual pressure inside each gas cylinder 400 after the test process is completed. This helps to enhance the safety and operational continuity of the electric air pump test system 10 and avoid the risks of leakage, explosion or misoperation caused by long-term retention of high-pressure gas.

[0053] Each pressure relief line is independently configured, corresponding to one solenoid valve and one gas cylinder 400, forming a one-to-one pressure relief channel. One end of the pressure relief line is connected to the second line near the air inlet of the gas cylinder 400, and the other end leads to the external atmosphere or a centralized exhaust device. The connection point of the pressure relief line can be located at the gas line node between the solenoid valve and the gas cylinder 400, or it can be set independently on the corresponding gas cylinder 400, ensuring that pressure relief operation can still be performed independently when the solenoid valve is closed, without affecting the sealing status of other gas lines.

[0054] Each pressure relief pipeline is equipped with an independent pressure relief control valve, which can be a solenoid valve or a pneumatic valve, and its control terminal is electrically connected to the main control module 100. Based on the test completion signal or a preset pressure relief program, the main control module 100 sends an opening command to the target pressure relief control valve, initiating the pressure relief process of the corresponding gas cylinder 400. Compressed gas is discharged in an orderly manner through the pressure relief pipeline, achieving a rapid pressure drop. During the pressure relief process, the main control module 100 monitors the pressure changes inside the gas cylinder 400 in real time using a pressure sensor. When the pressure drops to a safe threshold (such as atmospheric pressure), the main control module 100 sends a closing signal, shutting off the pressure relief control valve and ending the pressure relief action.

[0055] The outlet end of the pressure relief pipeline is equipped with a silencer or throttling device to reduce noise and airflow impact generated during high-speed gas discharge. The silencer uses porous sound-absorbing materials or a labyrinth structure to effectively attenuate exhaust noise, improve the acoustic conditions of the testing environment, and comply with environmental protection and safety regulations for industrial equipment.

[0056] In multi-round continuous testing scenarios, the pressure relief function supports the cyclical operation of the testing system. After the previous round of testing is completed, the main control module 100 automatically performs a pressure relief operation on all or a designated group of gas cylinders 400, restoring each gas cylinder 400 to its initial low-pressure state, preparing it for the next round of testing. This process requires no manual intervention, avoiding the safety hazards and time delays caused by operators manually opening valves to release gas.

[0057] In some embodiments, the electric air pump testing system 10 further includes a first pressure sensor electrically connected to the main control module 100. The first pressure sensor is used to measure the first pressure information of the first pipeline and transmit the first air pressure information to the main control module 100.

[0058] The electric air pump testing system 10 is equipped with a first pressure sensor for real-time monitoring of the gas pressure at the outlet of the electric air pump 300. The first pressure sensor is installed on the main body of the first pipeline, located between the outlet of the electric air pump 300 and the inlets of multiple solenoid valves, and can accurately sense the dynamic pressure changes of compressed gas before it enters the electrically controlled multi-way valve group 200.

[0059] The first pressure sensor is fixed to the first pipeline via a threaded interface or quick-connect fitting, ensuring good airtightness and mechanical stability at the connection point. The first pressure sensor employs a high-precision piezoresistive or capacitive sensing element, featuring a wide measurement range, high response speed, and long-term stability, capable of accurately measuring pressure values ​​from atmospheric pressure to the maximum output pressure of the electric air pump at 300 rpm.

[0060] The signal output terminal of the first pressure sensor is connected to the analog input channel of the main control module 100 via a shielded cable to achieve real-time transmission of pressure data. During the operation of the electric air pump 300, the first pressure sensor continuously collects pressure information in the first pipeline, converts the analog signal into a digital signal, and sends it to the main control module 100. The main control module 100 receives this pressure data as an important basis for judging the working status of the electric air pump 300 and evaluating its output performance.

[0061] The main control module 100 uses the pressure information provided by the first pressure sensor to analyze the start-stop characteristics, pressure build-up rate, maximum output pressure, and pressure fluctuations of the electric air pump 300. For example, at the beginning of the test, the main control module 100 records the time required for the pressure to rise from the initial value to the target value and calculates the response speed of the electric air pump 300; during the stable air supply phase, the main control module 100 analyzes the smoothness of the pressure curve to determine whether the electric air pump 300 is overloaded or has insufficient air supply.

[0062] The data from the first pressure sensor is also used in the safety protection logic of the electric air pump testing system 10. When the pressure in the first pipeline exceeds a preset safety threshold, the main control module 100 immediately issues a shutdown command to cut off the power supply to the electric air pump 300, preventing pipeline rupture or equipment damage due to abnormal high pressure. Simultaneously, the main control module 100 can combine this data with other parameters such as current and temperature for comprehensive fault diagnosis, improving the reliability of the electric air pump testing system 10.

[0063] In some embodiments, the electric air pump testing system 10 further includes multiple second pressure sensors, all of which are electrically connected to the main control module 100. Each gas cylinder 400 is equipped with a second pressure sensor, and each second pressure sensor is used to measure the second air pressure information of the corresponding gas cylinder 400 and send the second air pressure information to the main control module 100.

[0064] The electric air pump testing system 10 is equipped with multiple second pressure sensors to independently monitor the gas pressure changes inside each gas cylinder 400. Each second pressure sensor is directly installed at the air inlet of the corresponding gas cylinder 400 or at the end of the second pipeline near the gas cylinder 400, ensuring accurate sensing of the real-time pressure status of the gas cylinder 400 during the filling process.

[0065] Multiple second pressure sensors are configured in a one-to-one correspondence with each gas cylinder 400. Each second pressure sensor is fixed to the gas circuit connection point through a sealed connector, forming a stable and reliable measurement node. The second pressure sensors use high-precision, high-pressure resistant sensing elements, have good temperature compensation capabilities and vibration resistance, and can operate stably for a long time under frequent pressurization and depressurization conditions, ensuring the repeatability and accuracy of the measurement data.

[0066] The output of each second pressure sensor is connected to the analog acquisition channel of the main control module 100 via an independent signal line, enabling multi-channel parallel data transmission. During the test, the second pressure sensor continuously acquires the pressure value of its corresponding gas cylinder 400, converts the analog signal into a digital signal, and sends it to the main control module 100. The main control module 100 receives the pressure data streams from each channel and establishes the pressure-time change curve for each test branch.

[0067] The main control module 100 uses the pressure information provided by the second pressure sensor to analyze the filling efficiency of the electric air pump 300 for gas cylinders 400 with different volumes or initial pressures. For example, the main control module 100 calculates the time required to rise from the initial pressure to the target pressure and evaluates the output capability of the electric air pump 300 under different load conditions; by comparing the differences in pressure build-up rates of multiple gas cylinders 400, it determines the performance consistency of the electric air pump 300 under multiple operating conditions.

[0068] The data from the second pressure sensor is also used to control the automatic termination of the test process. When the pressure of a gas cylinder 400 reaches the preset upper limit, the main control module 100 immediately issues a command to close the solenoid valve corresponding to that branch and stop the operation of the electric air pump 300 to prevent overpressure filling from causing equipment damage. At the same time, the main control module 100 can combine the data from the first pressure sensor to compare the upstream and downstream pressures to verify the pipeline sealing and the reliability of valve operation.

[0069] This multi-point pressure monitoring structure enables independent monitoring and refined management of each test load. By installing a second pressure sensor at the 400 end of each gas cylinder, the system can obtain accurate terminal pressure feedback, supporting the execution of complex test logic, such as staged inflation, pressure holding tests, and leakage rate detection.

[0070] In some embodiments, the electric air pump testing system 10 further includes a power supply module, which is electrically connected to the main control module 100, the electrically controlled multi-way valve group 200 and the electric air pump 300, and is used to supply power to the main control module 100, the electrically controlled multi-way valve group 200 and the electric air pump 300. The main control module 100 is also used to collect voltage information, current information and working time of the electric air pump 300 during the power supply process of the power supply module.

[0071] The power supply module provides a stable power source for the electrical and electronic components in the system. The output terminals of the power supply module are connected to the power input interfaces of the main control module 100, the electrically controlled multi-way valve group 200, and the electric air pump 300, forming a unified power supply network. Based on the rated voltage and current requirements of each component, the power supply module outputs DC or AC power to ensure the normal operation of the control functions of the main control module 100, the solenoid valve operation of the electrically controlled multi-way valve group 200, and the drive motor of the electric air pump 300.

[0072] The power supply module adopts an adjustable regulated power supply or switching power supply structure, and has overvoltage, overcurrent, and short-circuit protection functions. The input terminal of the power supply module is connected to an external AC power grid or DC power system, and the output terminal is configured with multiple independent power supply channels. Each channel is equipped with a filter circuit and isolation device to suppress electromagnetic interference and improve power quality. The output parameters of the power supply module can be preset or dynamically adjusted according to the electrical characteristics of different models of the electric air pump 300, and it supports compatibility testing with a wide range of input voltages and various load types.

[0073] The main control module 100 monitors the voltage and current information output from the power supply module to the electric air pump 300 in real time through its built-in voltage acquisition circuit and current sensor. The voltage acquisition circuit is connected to the power supply line of the electric air pump 300 and uses a voltage divider circuit to obtain the real-time voltage value; the current sensor, using a Hall effect element or a sampling resistor, is connected in series in the power supply circuit of the electric air pump 300 to accurately detect changes in the operating current. The main control module 100 continuously records voltage and current data at a fixed sampling frequency to form a complete time series of electrical parameters.

[0074] The main control module 100 synchronously starts its internal timer to record the continuous running time of the electric air pump 300 after each start, i.e., the working duration. The working duration data is stored in association with voltage and current information, forming a complete electrical performance profile of the electric air pump 300 under specific test conditions. The main control module 100 uses this data to calculate key indicators of the electric air pump 300, such as instantaneous power, cumulative energy consumption, and starting inrush current, to evaluate its energy efficiency and electrical stability.

[0075] In some embodiments, the electric air pump testing system 10 also includes a noise sensor electrically connected to the main control module 100. The noise sensor is used to detect noise information of the electric air pump 300 during the testing process and send the noise information to the main control module 100.

[0076] The noise sensor is used to detect the acoustic characteristics of the electric air pump 300 during operation. The noise sensor is installed in the near field area of ​​the electric air pump 300, at a certain distance from the surface of the electric air pump 300 housing, in a relatively unobstructed free sound field environment, to ensure accurate capture of the air noise and structural vibration radiated noise generated by the electric air pump 300 during operation.

[0077] The noise sensor employs a high-sensitivity condenser microphone or digital sound level meter module, featuring a wide frequency response range and a large dynamic measurement interval. It can accurately identify noise signals across the entire frequency range, from low-frequency mechanical sounds to high-frequency airflow whistling sounds. The noise sensor's protective housing is dustproof, moisture-proof, and resistant to electromagnetic interference, adapting to the complex environments of industrial testing sites and ensuring the stability and reliability of long-term monitoring.

[0078] The noise sensor is connected to the main control module 100 via a signal line or wireless communication to achieve real-time transmission of noise data. After the electric air pump 300 is started, the noise sensor continuously collects the sound pressure level information of the surrounding environment and converts the analog sound signal into a digital audio data stream, which is then sent to the main control module 100. The main control module 100 receives this data, performs spectrum analysis, weighting processing (such as A-weighting or C-weighting), and time-domain statistics to obtain multiple noise parameters, including the maximum sound pressure level, average noise value, and peak frequency.

[0079] The main control module 100 correlates noise information with the operating status of the electric air pump 300. For example, under different load conditions (such as filling gas cylinders 400 with different volumes), the main control module 100 compares the changing trend of noise levels to determine whether the electric air pump 300 has abnormal vibration or airflow turbulence under high back pressure conditions; by identifying sudden increases in specific frequency components, it assists in diagnosing potential faults such as motor bearing wear, blade imbalance, or valve plate knocking.

[0080] The noise sensor data is also used for product quality evaluation and compliance verification. The main control module 100 automatically determines whether the tested electric air pump 300 meets national or industry technical specifications regarding noise emissions, based on preset noise limit standards. The test results can generate a complete report including noise curves, spectrum distribution diagrams, and pass / fail conclusions, supporting quality traceability and certification audits.

[0081] This noise monitoring function expands the evaluation dimensions of the electric air pump test system 10, extending from traditional physical parameters such as pressure and current to acoustic performance.

[0082] In some embodiments, there are multiple electric air pumps 300.

[0083] Multiple electric air pumps 300 are used to simultaneously or alternately test multiple devices under test. The multiple electric air pumps 300 are installed at fixed intervals on designated positions on the test platform. The outlet of each electric air pump 300 is independently connected to the input interface of the electrically controlled multi-way valve assembly 200, forming a parallel air supply structure. This design supports centralized performance evaluation of multiple electric air pumps 300 of different types, models, or batches, significantly improving the throughput and utilization efficiency of the electric air pump testing system 10.

[0084] Each electric air pump 300 is connected to an independent output channel of the power supply module via a power cord, ensuring that the electric air pumps 300 do not interfere with each other during operation. The main control module 100 assigns an independent control address and data acquisition channel to each electric air pump 300, enabling it to control its start / stop status and independently acquire its electrical parameters such as operating voltage, operating current, and running time. The main control module 100 also synchronously records the pressure changes, energy consumption characteristics, and noise levels of the corresponding air circuits of each electric air pump 300, realizing parallel processing and storage of operating data from multiple devices.

[0085] During the testing process, the main control module 100 schedules the operating sequence of multiple electric air pumps 300 according to a preset program. Multiple electric air pumps 300 can be started simultaneously to evaluate the system's air supply capacity and consistency with electronic control response under high load conditions; they can also be started at different times to simulate a scenario of testing each pump one by one on a continuous production line. The electronically controlled multi-way valve group 200 dynamically switches the air path connections between each gas cylinder 400 and different electric air pumps 300 according to instructions from the main control module 100, supporting flexible test combination configurations.

[0086] The setup of multiple electric air pumps 300 meets batch testing requirements and is suitable for the factory inspection process of electric air pump 300 manufacturers. The testing system can complete full-performance tests on multiple devices in a single setup, including pressure build-up time, maximum pressure, temperature rise characteristics, energy consumption indicators, and noise levels, reducing the frequency of manual operation and lowering the testing cycle and labor costs. After testing, the main control module 100 automatically generates an independent test report for each electric air pump 300, and performs pass / fail determination and data archiving.

[0087] In some implementations, the volumes of the multiple gas cylinders 400 may be the same or different.

[0088] The volume of each gas cylinder 400 can be set to the same or different specifications according to testing requirements. The gas cylinder group 400 adopts a modular layout and is fixed to the test platform. Each gas cylinder 400 is connected to the electrically controlled multi-way valve group 200 via an independent second pipeline, forming a flexibly configurable load unit set. This design enables the test system to simulate the gas load characteristics under various real-world application scenarios, improving the diversity and realism of test conditions.

[0089] When multiple gas cylinders 400 have the same volume, each gas cylinder 400 is used as a standardized test load. Gas cylinders 400 of the same volume are used to evaluate the repeatability, stability, and batch consistency of the electric air pump 300 under consistent load conditions. The main control module 100 controls the electronically controlled multi-way valve group 200 to sequentially switch to each gas cylinder 400 of the same volume, performing multiple rounds of inflation tests. By comparing parameters such as pressure build-up time, energy consumption curve, and pressure fluctuation, the performance degradation or thermal equilibrium characteristics of the electric air pump 300 under continuous operation are determined.

[0090] When multiple gas cylinders 400 have different volumes, the gas cylinders 400 form a gradient load system. For example, the system can be configured with small-volume (e.g., 2 liters), medium-volume (e.g., 5 liters), and large-volume (e.g., 10 liters) gas cylinders 400 to simulate the inflation process of bicycle tires, motorcycle tires, and car tires, respectively. Gas cylinders 400 of different volumes are used to evaluate the dynamic response capability, output flow regulation characteristics, and motor load adaptability of the electric air pump 300 under variable load conditions. The main control module 100 automatically selects the target gas cylinder 400 and activates the corresponding solenoid valve according to the preset test procedure, realizing continuous performance verification from light load to heavy load.

[0091] The volume difference of gas cylinders 400 directly affects the pressure rise rate and total gas consumption during the filling process. The main control module 100, combining data from the second pressure sensor, analyzes the pressure build-up slope and cumulative gas supply time of the electric air pump 300 under different volume gas cylinders 400, calculating its effective exhaust volume and operating efficiency. For large volume gas cylinders 400, the electric air pump 300 needs to run continuously for a longer period, which can be used to evaluate its temperature rise characteristics and long-term operational reliability; for small volume gas cylinders 400, the electric air pump 300 quickly completes the filling task, suitable for testing start-stop response speed and control accuracy.

[0092] The variable-volume gas cylinder 400 structure enhances the adaptability and functionality of the testing system. By flexibly combining gas cylinders 400 of the same or different volumes, the electric air pump testing system 10 can perform standardized batch testing as well as conduct multi-dimensional performance studies, meeting various application needs such as R&D verification, quality sampling inspection, and durability testing.

[0093] Please see Figure 2 This application provides an electric air pump testing method. The electric air pump testing method is applied to the electric air pump testing system 10 of any of the above embodiments. The main control module 100 is used to execute the following method steps. The electric air pump testing method includes: step 010, step 020 and step 030.

[0094] Step 010: Receive test instructions.

[0095] The main control module 100, as the core control unit of the electric air pump testing system 10, receives start commands from external operating terminals or automated testing systems through a built-in communication interface or human-machine interface. Test commands can be input via manual triggering, remote control signal access, or automatic wake-up after a preset time, supporting flexible operation in various application scenarios.

[0096] The test command contains complete test task parameters, specifically covering the target gas cylinder 400's number or combination, preset inflation pressure value, single test duration, number of test cycles, data sampling frequency, whether the pressure relief function is enabled, and whether multi-pump parallel testing is performed. The main control module 100 parses and verifies the received test command, checking the legality and completeness of the parameters to ensure the safety and accuracy of subsequent execution.

[0097] After completing instruction parsing, the main control module 100 enters the test preparation state. The main control module 100 initializes its internal timers, data acquisition channels, and communication modules, resets the readings of each sensor, and sends a self-test signal to the electrically controlled multi-way valve group 200 to confirm that all solenoid valves are closed and there is no risk of leakage. Simultaneously, the main control module 100 reads the initial pressure values ​​of each gas cylinder 400 to determine if the test start conditions are met; if residual pressure exists, it automatically executes the pressure relief procedure.

[0098] Step 020: Based on the test command, control the electronically controlled multi-way valve group 200 to open the gas path corresponding to the target gas cylinder 400, so that the gas path corresponding to the target gas cylinder 400 is in the open state, wherein the target gas cylinder 400 is at least one of multiple gas cylinders 400.

[0099] The main control module 100 generates the corresponding solenoid valve control signal based on the target gas cylinder 400 configuration information in the parsed test command. The target gas cylinder 400 is at least one of multiple gas cylinders 400 in the system, and its selection is determined according to the test task requirements. It can be a single gas cylinder 400, multiple specific gas cylinders 400, or a combination of all gas cylinders 400.

[0100] The main control module 100 sends an opening command to the designated solenoid valve in the electrically controlled multi-way valve assembly 200 via its digital output port. Upon receiving the control signal, the electrically controlled multi-way valve assembly 200 drives the actuator of the corresponding solenoid valve in the target gas cylinder 400, switching the airflow passage inside the solenoid valve from a closed state to an open state. This creates a continuous passage between the first pipeline and the second pipeline between the target gas cylinder 400, allowing compressed gas to enter the target gas cylinder 400 from the electric air pump 300 via the first pipeline, the opened solenoid valve, and the second pipeline.

[0101] When a test command specifies multiple target gas cylinders 400 to participate in the test simultaneously, the main control module 100 outputs multiple control signals in parallel, synchronously activating multiple solenoid valves to achieve simultaneous gas supply from multiple gas cylinders 400. The activation status of each gas path is independent and does not affect each other, ensuring that the pressure changes and operating parameters of each branch can be independently monitored and recorded. After issuing the control command, the main control module 100 receives status feedback signals from the solenoid valves, confirms that the gas path activation action has been successfully executed, and records the timestamp of the gas path switching.

[0102] During the gas circuit connection process, the main control module 100, in conjunction with the pressure sensors installed on each of the second pipelines, monitors the pressure changes at the target gas cylinder 400 in real time to determine whether there is an abnormal leak or the valve is not fully open. If an abnormal pressure rise or response delay is detected, the main control module 100 initiates a fault diagnosis program, issues an alarm, and suspends subsequent gas supply operations to ensure the safety of the testing process.

[0103] This pneumatic path control procedure enables precise selection and dynamic switching of the test load. Through the programmed operation of the electrically controlled multi-way valve group 200, the system can flexibly configure the test path, supporting various test modes such as single-path verification, multi-path parallel operation, or sequential rotation, providing an accurate pneumatic load environment for subsequent performance evaluation of the electric air pump 300. The entire process requires no manual intervention, improving the automation level and execution efficiency of the testing process.

[0104] Step 030: Start the electric air pump 300 to supply air to the target gas cylinder 400 in the conducting state to conduct a gas supply test and obtain the test results of the electric air pump 300, including the working performance parameters of the electric air pump 300.

[0105] After confirming that the gas path corresponding to the target gas cylinder 400 is in a conductive state, the main control module 100 sends a start command to the electric air pump 300, driving the electric air pump 300 to start running. The electric air pump 300 is connected to the rated voltage provided by the power supply module, and its internal motor drives the compression mechanism to operate, drawing in ambient air and pressurizing it, and then outputting compressed gas through the outlet end.

[0106] Compressed gas enters the electrically controlled multi-way valve group 200 through the first pipeline, and continuously fills the target gas cylinder 400 through the opened solenoid valve and the corresponding second pipeline. During the gas supply process, the main control module 100 simultaneously starts a multi-channel data acquisition program to acquire the operating performance parameters of the electric air pump 300 in real time. The operating performance parameters include the operating voltage, operating current, cumulative running time, motor surface temperature, exhaust pressure, and operating noise of the electric air pump 300.

[0107] The main control module 100 continuously monitors changes in electrical parameters and calculates instantaneous power and energy consumption values ​​through a voltage acquisition circuit and a current sensor connected to the power supply circuit of the electric air pump 300. A first pressure sensor provides real-time feedback on the gas pressure in the first pipeline, reflecting the output capacity of the electric air pump 300. A second pressure sensor installed at the end of the target gas cylinder 400 records the dynamic curve of the pressure rise within the cylinder 400 over time, used to analyze the pressure build-up rate and maximum output pressure. A noise sensor collects sound pressure level data during the operation of the electric air pump 300, and the main control module 100 performs spectrum analysis to identify abnormal noise frequencies.

[0108] The main control module 100 aligns and associates the collected parameters according to the time series to form a complete test dataset. When the pressure of the target gas cylinder 400 reaches the upper limit set in the test command, or when the electric air pump 300 runs continuously for a preset time, the main control module 100 issues a stop command to stop the electric air pump 300 and close the corresponding solenoid valve to terminate the gas supply process.

[0109] The main control module 100 generates test results based on the collected data. The test results include key indicators such as the response time, inflation efficiency, energy consumption characteristics, temperature rise trend, pressure stability, and noise level of the electric air pump 300. The main control module 100 compares the test results with preset standards, completes the pass / fail determination, and generates a structured test report. If the test process includes multiple target gas cylinders 400 or multiple rounds of test tasks, the main control module 100 executes the gas supply test sequentially until all test items are completed.

[0110] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0111] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric air pump testing system, characterized in that, The system includes a main control module, an electrically controlled multi-way valve assembly, an electric air pump, and multiple gas cylinders. The electrically controlled multi-way valve assembly and the electric air pump are both electrically connected to the main control module. The electrically controlled multi-way valve assembly is connected to the electric air pump and the multiple gas cylinders via air passages and is used to independently control the open or closed state of the air passages of each gas cylinder according to instructions from the main control module. The electric air pump is used to supply air to the gas cylinders in the open state. The main control module is used to collect the operating performance parameters of the electric air pump during operation.

2. The electric air pump testing system according to claim 1, characterized in that, The electrically controlled multi-way valve group includes multiple solenoid valves, a first pipeline, and multiple second pipelines. The multiple solenoid valves are all electrically connected to the main control module. Each solenoid valve is connected to the outlet of the electric air pump through the first pipeline. Each solenoid valve corresponds to one second pipeline and one gas cylinder. Each solenoid valve is connected to the corresponding gas cylinder through the corresponding second pipeline.

3. The electric air pump testing system according to claim 2, characterized in that, The electrically controlled multi-way valve assembly also includes multiple pressure relief lines, each of which corresponds to a solenoid valve and a gas cylinder. The pressure relief lines are used to release the residual pressure in the corresponding gas cylinder after the test is completed.

4. The electric air pump testing system according to claim 2, characterized in that, The electric air pump testing system also includes a first pressure sensor, which is electrically connected to the main control module. The first pressure sensor is used to measure the first pressure information of the first pipeline and transmit the first air pressure information to the main control module.

5. The electric air pump testing system according to claim 1, characterized in that, The electric air pump testing system also includes multiple second pressure sensors, all of which are electrically connected to the main control module. Each gas cylinder is equipped with a second pressure sensor, and each second pressure sensor is used to measure the second air pressure information of the corresponding gas cylinder and send the second air pressure information to the main control module.

6. The electric air pump testing system according to claim 1, characterized in that, The electric air pump testing system also includes a power supply module, which is electrically connected to the main control module, the electrically controlled multi-way valve group, and the electric air pump. The power supply module is used to supply power to the main control module, the electrically controlled multi-way valve group, and the electric air pump. The main control module is also used to collect the voltage information, current information, and working time of the electric air pump during the power supply process of the power supply module.

7. The electric air pump testing system according to claim 1, characterized in that, The electric air pump testing system also includes a noise sensor, which is electrically connected to the main control module. The noise sensor is used to detect the noise information of the electric air pump during the testing process and send the noise information to the main control module.

8. The electric air pump testing system according to claim 1, characterized in that, The number of electric air pumps is multiple.

9. The electric air pump testing system according to claim 1, characterized in that, The gas cylinders may have the same or different volumes.

10. A method for testing an electric air pump, characterized in that, The main control module, used in the electric air pump testing system according to any one of claims 1 to 9, is configured to perform the following method steps, the testing method comprising: Receive test instructions; Based on the test command, the electronically controlled multi-way valve group is controlled to open the gas path corresponding to the target gas cylinder under test, so that the gas path corresponding to the target gas cylinder under test is in the open state, wherein the target gas cylinder under test is at least one of multiple gas cylinders; The electric air pump is started to supply air to the target gas cylinder in the conductive state for a test, and the test results of the electric air pump are obtained, wherein the test results include the working performance parameters of the electric air pump.

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