Refrigerator car performance detection device

Abstract

The utility model discloses a refrigerator car performance detection device in the field of vehicle performance detection, which comprises a high-voltage connector switching wire harness for testing, a module power supply, a high-voltage direct-current electric energy acquisition module and an intelligent data transmission module, and the high-voltage connector switching wire harness for testing is provided with a male connector and a female connector. The high-voltage direct-current electric energy acquisition module is connected with the refrigerator car and the detected equipment through a high-voltage connector switching wire harness for testing; the intelligent data transmission module is electrically connected with the high-voltage direct-current electric energy acquisition module and the module power supply through wires. According to the utility model, the data uploading state can be monitored in real time through a background APP or a PC, and the data board is analyzed; after the test is finished, data can be exported in time through a terminal background, a performance test data billboard is generated, performance data performance of corresponding vehicle types can be visually evaluated, and remote performance test can be carried out on refrigerator cars of different brands or different life stages.

Description

Technical Field

[0001] The utility model relates to the field of vehicle performance detection, in particular to a performance detection device for a refrigerated truck. Background Technique

[0002] With the continuous growth of the market demand for cold chain logistics in China and the continuous development of related product technologies such as refrigerated trucks and refrigeration equipment, the cold chain transportation industry has developed rapidly. New energy refrigerated trucks have also developed rapidly. Cold chain logistics products put on the market continuously develop different cold storage materials and high-efficiency refrigeration equipment to match different pure electric refrigerated truck models.

[0003] For the refrigeration efficiency, energy consumption performance, heat conduction performance, subcooling performance, etc. of refrigeration units and cold compartments, corresponding performance test verifications need to be carried out simultaneously to discover refrigeration equipment with high efficiency and low energy consumption. At the same time, combined with the type, dosage composition, and layout method of the compartment materials, better new energy refrigerated trucks can be matched.

[0004] At present, for the performance test of refrigerated trucks, technicians usually conduct on-site tests and record data such as temperature and power in real time. There are situations where the data collection method is not convenient and the data sorting workload is large and prone to errors, which affect the convenience of the test process and the accuracy of the results. Therefore, technicians in this field have provided a performance detection device for refrigerated trucks to solve the problems raised in the above background technique. Content of the Utility Model

[0005] The purpose of the utility model is to provide a performance detection device for a refrigerated truck to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A performance detection device for a refrigerated truck includes a test high-voltage connector patch cord, a module power supply, a high-voltage DC power acquisition module, and an intelligent data transmission module. It is characterized in that: the test high-voltage connector patch cord has a male connector and a female connector, and the high-voltage DC power acquisition module is connected to both the refrigerated truck and the device to be detected through the test high-voltage connector patch cord; the intelligent data transmission module is electrically connected to the high-voltage DC power acquisition module and the module power supply through wires, and the module power supply is electrically connected to the high-voltage DC power acquisition module through a wire; the high-voltage DC power acquisition module internally includes an RS485 converter, a power interface end, a display meter, a data acquisition and processing unit, and a shunt; the intelligent data transmission module internally includes a DC / DC voltage stabilization power supply module, an RS485 communication circuit, a main control chip, a wireless communication module, a SIM card, and a peripheral interface.

[0008] As a further solution of the present utility model: The A and B terminals of the RS485 converter are connected to the A and B terminals on the intelligent data transmission module, which are used to receive data such as current / voltage / power consumption transmitted by the data acquisition and processing unit. The RS485 converter is also connected to the data acquisition and processing unit, and the data acquisition and processing unit is connected to the display instrument and the shunt.

[0009] As a further solution of the present utility model: The device to be detected is a cold machine (also known as a refrigerating machine).

[0010] As a further solution of the present utility model: The high-voltage DC power acquisition module acquires the current and voltage signals of the shunt, which are used to calculate the current value and power consumption data of the DC circuit of the device to be detected, and are transmitted to the terminal background through the intelligent data transmission module.

[0011] As a further solution of the present utility model: The test high-voltage connector patch cord can be customized according to the type of the actual vehicle high-voltage connector to form a high-voltage connector patch cord tool set, and the patch cord adapted to different vehicle models can be replaced at any time, which is convenient for the efficient development of the test.

[0012] As a further solution of the present utility model: The positive pole of the test high-voltage connector patch cord is connected in parallel with the 3rd pin of the data acquisition and processing unit, and at the same time, it is connected in series to the input terminal of the shunt after passing through the positive pole of the device to be detected. The input terminal of the shunt is connected in parallel with the 1st pin of the data acquisition and processing unit; the output terminal of the shunt is directly connected back to the negative pole of the high-voltage connector patch cord, and at the same time, the output terminal of the shunt is connected in parallel with the 2nd / 4th pins of the data acquisition and processing unit.

[0013] As a further solution of the present utility model: In the intelligent data transmission module, the DC / DC voltage stabilizing power supply module is docked with the GND interface and VCC interface on the RS485 communication circuit and the GND interface and 3.3V+ interface on the main control chip. The RS485 communication circuit is electrically connected to the main control chip. The main control chip is connected to the TX, RX, and EN interfaces on the wireless communication module. The DC / DC voltage stabilizing power supply module is docked with the GND interface and 3.8V+ interface on the wireless communication module. The wireless communication module is connected to the SIM card. The DC / DC voltage stabilizing power supply module and the RS485 communication circuit are connected to the peripheral interface.

[0014] As a further solution of the present utility model: The intelligent data transmission module processes the received data signal through the built-in main control chip and wireless communication module and sends it to the terminal background to achieve the purpose of remote data transmission.

[0015] The utility model can monitor the data upload status in real time through the background APP or PC, and analyze the data dashboard; after the test, the data can be exported in time through the terminal background to generate a performance test data dashboard, visually evaluate the performance data of the corresponding vehicle model, and realize the remote performance test of refrigerated trucks of different brands or different life stages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the utility model;

[0017] Figure 2 is a circuit diagram of the utility model;

[0018] Figure 3 is a structural diagram of the intelligent data transmission module in the utility model.

[0019] In the figure: 1. High-voltage connector patch cord for testing; 2. High-voltage DC power acquisition module; 201. RS485 converter; 202. Shunt; 203. Power interface end; 204. Data acquisition and processing unit; 3. Module power supply; 4. Intelligent data transmission module; 5. Device under test. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Please refer to Figures 1 to 3 , in an embodiment of the utility model, a refrigerated truck performance detection device includes a high-voltage connector patch cord 1 for testing, a module power supply 3, a high-voltage DC power acquisition module 2, and an intelligent data transmission module 4, and is characterized in that: the high-voltage connector patch cord 1 for testing has a male connector and a female connector, and the high-voltage DC power acquisition module 2 is connected to both the refrigerated truck and the device under test 5 through the high-voltage connector patch cord 1 for testing; the intelligent data transmission module 4 is electrically connected to both the high-voltage DC power acquisition module 2 and the module power supply 3 through wires, and the module power supply 3 is electrically connected to the high-voltage DC power acquisition module 2 through a wire; the high-voltage DC power acquisition module 2 internally includes an RS485 converter 201, a power interface end 203, a display instrument, a data acquisition and processing unit 204, and a shunt 202; the intelligent data transmission module 4 internally includes a DC / DC voltage stabilization power module, an RS485 communication circuit, a main control chip, a wireless communication module, a SIM card, and a peripheral interface;

[0021] The GND interface and VCC interface on the DC / DC regulated power supply module are docked with the GND interface and 3.3V+ interface on the RS485 communication circuit, and the GND interface on the main control chip. The RS485 communication circuit is electrically connected to the main control chip. The main control chip is connected to the TX, RX, and EN interfaces on the wireless communication module. The GND interface and 3.8V+ interface on the DC / DC regulated power supply module are docked with the wireless communication module. The wireless communication module is connected to the SIM card. The DC / DC regulated power supply module and the RS485 communication circuit are connected to the peripheral interface.

[0022] Among them, the A end and B end of the RS485 converter 201 are connected to the A end and B end of the intelligent data transmission module 4 for receiving data such as current / voltage / power consumption transmitted by the data acquisition and processing unit 204. The RS485 converter 201 is also connected to the data acquisition and processing unit 204, and the data acquisition and processing unit 204 is connected to the display instrument and the shunt 202.

[0023] Among them, the device to be detected 5 is a cold machine (also known as a refrigerating machine).

[0024] Among them, the high-voltage DC power acquisition module 2 acquires the current and voltage signals of the shunt 202, calculates the current value and power consumption data of the DC loop of the device to be detected 5, and transmits them to the terminal background through the intelligent data transmission module 4.

[0025] Among them, the test high-voltage connector patch cord 1 can be customized according to the type of the actual vehicle high-voltage connector to form a high-voltage connector patch cord tool set, and the patch cord adapted to different vehicle models can be replaced at any time to facilitate the efficient development of the test.

[0026] Among them, the positive pole of the test high-voltage connector patch cord 1 is connected in parallel with the 3rd pin of the data acquisition and processing unit 204, and at the same time is connected in series to the input terminal of the shunt 202 after passing through the positive pole of the device to be detected 5. The input terminal of the shunt 202 is connected in parallel with the 1st pin of the data acquisition and processing unit 204; the output terminal of the shunt 202 is directly connected back to the negative pole of the high-voltage connector patch cord, and at the same time the output terminal of the shunt 202 and the 2nd / 4th pins of the data acquisition and processing unit 204 are both connected in parallel.

[0027] Among them, the intelligent data transmission module 4 processes the received data signals through the built-in main control chip and wireless communication module and sends them to the terminal background to achieve the purpose of remotely transmitting data.

[0028] The working principle of the present utility model is as follows: First, connect the high-voltage DC bus of the device to be detected 5 to the output plug of the high-voltage connector transfer wiring harness, connect the high-voltage DC bus of the whole vehicle to the input plug of the high-voltage connector transfer wiring harness, connect the module power supply input line of the high-voltage DC power acquisition module 2 to a 12 / 24V battery, and then start the device to work according to the following process:

[0029] 1. Neither the test high-voltage connector transfer wiring harness 1 nor the working module power supply 3 outputs voltage.

[0030] 2. Both the high-voltage DC power acquisition module 2 and the intelligent data transmission module 4 are in an unoperated state.

[0031] 3. The working module power supply 3 inputs a 12 / 24V low voltage.

[0032] 4. Both the high-voltage DC power acquisition module 2 and the intelligent data transmission module 4 start to work. Among them, the RS485 converter 201 / shunt 202; the display instrument / data acquisition and processing unit 204 are all in the power-on activation state; the intelligent data transmission module 4 initializes and runs, starts to receive and process the information state fed back by the high-voltage DC power acquisition module 2, and communicates with the terminal background.

[0033] Detection working principle:

[0034] Select the high-voltage connector transfer wiring harness of the adapted vehicle model and connect it to the test circuit. First, output a high voltage of 500 - 1000V to the device to be detected 5 to provide the high-voltage power for its operation. After starting the device to be detected 5 to run, the entire high-voltage circuit works in a normal closed-loop manner; the high-voltage DC power acquisition module 2 collects the input and output voltages of the device to be detected 5 through the data acquisition and processing unit 204, synchronously collects the input / output currents of the shunt 202, and after processing and calculation, transmits them to the display instrument in the module through the RS485 converter 201 for display, and at the same time communicates with the external intelligent data transmission module 4 to complete data interaction; the intelligent data transmission module 4 processes the data, and then the built-in 4G communication module completes the remote transmission of terminal data; during the test process, the data upload status can be monitored in real time through the background APP or PC, and the data dashboard can be analyzed; after the test is completed, the data can be exported in time through the terminal background to generate a performance test data dashboard, intuitively evaluate the performance data of the corresponding vehicle model, and remote performance tests can be carried out on refrigerated vehicles of different brands or different life stages.

[0035] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A refrigerated truck performance testing device, comprising a high-voltage connector adapter harness (1), a module power supply (3), a high-voltage direct current power collection module (2) and an intelligent data transmission module (4), characterized in that: The high-voltage connector adapter harness (1) for testing comprises a male connector and a female connector, and the high-voltage direct current power collection module (2) is connected to the refrigerated truck and the device to be tested (5) through the high-voltage connector adapter harness (1); the intelligent data transmission module (4) is electrically connected to the high-voltage direct current power collection module (2) and the module power supply (3) through wires, and the module power supply (3) is electrically connected to the high-voltage direct current power collection module (2) through wires; The high-voltage direct current power collection module (2) internally comprises an RS485 converter (201), a power interface terminal (203), a display instrument, a data collection processing unit (204) and a shunt (202); the intelligent data transmission module (4) internally comprises a DC / DC voltage-stabilized power supply module, an RS485 communication circuit, a main control chip, a wireless communication module, a SIM card and a peripheral interface.

2. A refrigerated vehicle performance detection device according to claim 1, characterized in that: The A end and the B end of the RS485 converter (201) are connected to the A end and the B end of the intelligent data transmission module (4). The RS485 converter (201) is also connected to a data acquisition processing unit (204), and the data acquisition processing unit (204) is connected to a display instrument and a splitter (202).

3. A refrigerated vehicle performance detection device according to claim 1, characterized in that: The detected device (5) is a cold machine.

4. A refrigerated vehicle performance detection device according to claim 1, characterized in that: The high-voltage direct current power collection module (2) collects current and voltage signals of the shunt (202) for calculating the current value and power consumption data of the direct current circuit of the detected device (5), and transmits the data to the terminal background through the intelligent data transmission module (4).

5. A refrigerated vehicle performance detection device according to claim 1, characterized in that: The positive pole of the testing high-voltage connector adapter harness (1) is connected in parallel with the third pin of the data acquisition processing unit (204), and is connected in series through the positive pole of the detected device (5) and then connected to the input terminal of the shunt (202). The input terminal of the shunt (202) and the first pin of the data acquisition processing unit (204) are connected in parallel; the output terminal of the shunt (202) is directly connected back to the negative pole of the high-voltage connector adapter harness, and the output terminal of the shunt (202) and the second / fourth pins of the data acquisition processing unit (204) are connected in parallel.

6. A refrigerated vehicle performance detection device according to claim 1, characterized in that: In the intelligent data transmission module (4), the DC / DC voltage-stabilized power supply module is connected to the GND interface and the VCC interface on the RS485 communication circuit and the GND interface and the 3.3V+ interface on the main control chip, the RS485 communication circuit is electrically connected to the main control chip, the main control chip is connected to the TX, RX and EN interfaces on the wireless communication module, the DC / DC voltage-stabilized power supply module is connected to the GND interface and the 3.8V+ interface on the wireless communication module, the wireless communication module is connected to the SIM card, and the DC / DC voltage-stabilized power supply module and the RS485 communication circuit are connected to the peripheral interface.

7. A refrigerated vehicle performance detection device according to claim 1 or 6, characterized in that: The intelligent data transmission module (4) processes the received data signal and sends it to the terminal background through the built-in main control chip and wireless communication module, thereby achieving the purpose of remote data transmission.

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