Electrohydraulic detection device for storage battery of motor train unit

Abstract

The utility model discloses a liquid-electric detection device for a storage battery of a motor train unit. The liquid-electric detection device comprises a test head, a sensor and a control box, the sensor is nested in the testing head, and the testing head is connected with the control box through a cable. The utility model provides a miniaturized and digitalized device for simultaneously detecting the height and the voltage of residual electrolyte in a liquid battery of a single motor train unit, the distance between a liquid level surface and a reference surface is detected through an ultrasonic sensor nested in a testing head, and the distance is converted into the actual liquid level height through certain calculation; meanwhile, the voltage value can be accurately measured through the probes on the two sides, the structure is simple, measurement is accurate and reliable, and operation is convenient.

Description

Technical Field

[0001] This technical solution mainly involves the field of EMU technology, especially the field of EMU battery operation. Background Technology

[0002] The batteries inside the high-speed train are used for train activation, pantograph power supply, and related functional tests during maintenance. They also ensure the normal operation of critical systems such as emergency lighting, emergency ventilation, onboard safety equipment, and broadcasting and communication systems in emergencies such as lack of grid voltage or high-voltage system failure. Alkaline batteries in high-speed trains widely use electrolyte as the battery polarity carrier. To ensure normal battery voltage and chemical performance, it is necessary to measure the electrolyte level, the voltage of each individual cell in the module, and the overall voltage.

[0003] Existing testing tools use pipettes and simple markings for electrolyte level calibration. The operator inserts a straight tube into the electrolyte, holds the vent, and then pulls it out, observing whether the liquid level is above the markings. This method cannot accurately read the liquid level, and there are key problems such as easy spillage and electrolyte contamination by the pipette. Furthermore, manual observation of the lowest liquid level is affected by viewing angle, leading to rough measurement results. Additionally, the battery box cannot be fully removed, leaving part of the battery inside the vehicle, and the relatively long tube inserted into the battery compartment is inconvenient. Summary of the Invention

[0004] The technical problem this invention aims to solve is: a rapid digital measurement device for battery level and voltage that can be operated efficiently by a single person while ensuring electrolyte cleanliness. The device can simultaneously measure battery level and individual cell voltage in a single setup, without contacting the electrolyte liquid, thus ensuring electrolyte cleanliness and preventing contamination and spillage. Adjustable detection probes ensure compatibility with various battery models.

[0005] The present invention adopts the following technical solution:

[0006] A device for testing the liquid and electrical properties of a high-speed train battery is characterized by comprising a test head (1), a sensor (2), and a control box (3). The test head (1) is matched with the liquid filling port of the battery under test and can simultaneously measure the liquid level and the voltage of a single cell. The sensor (2) is used to detect the distance from the liquid level surface to the reference surface. The control box (3) is used to control and drive the test head (1). The sensor (2) is nested inside the test head (1), and the test head (1) and the control box (3) are connected by a cable.

[0007] Preferably, the above-mentioned electric vehicle battery liquid-electric detection device is characterized in that: the test head (1) includes a sensor (2) fixed on a sliding sleeve (8), the sliding sleeve (8) is embedded in the inner wall of the test head housing (4), and the sliding sleeve (8) can drive the test head (1) to slide vertically up and down in cooperation with the inner wall of the test head housing (4); the detection button (5) and the movable probe (6) are installed on the outside of the test head housing (4), and the movable probe (6) is used to touch the electrode of the battery under test to measure the voltage; the dust cover (7) is installed on the upper part of the test head housing (4), and the tail of the sensor (2) can extend out from it.

[0008] Preferably, the above-mentioned electric vehicle battery liquid electrostatic testing device is characterized in that: the sliding sleeve (8) is fixed to the sensor (2) and the movable probe (6) respectively by threads, and the fixing screw passes through the grooves on both sides of the test head housing (4) so ​​that the sliding sleeve (8), the sensor (2) and the movable probe (6) can slide up and down along the guide groove on the side of the test head housing (4) while the two are relatively fixed. At the same time, the three are not rotatable relative to the test head housing (4). By changing the height of the test port contact surface of the sensor (2) and the movable probe (6) relative to the test head housing (4), it can adapt to the liquid electrostatic measurement of different types of batteries, and at the same time shorten the overall height of the equipment during the test as much as possible.

[0009] Preferably, the above-mentioned electric vehicle battery liquid electrostatic testing device is characterized in that: the control box (3) includes a panel (9) covering the housing (10); the control board (11) and the battery (12) are fixed inside the housing (10), the control board (11) is used to collect and process data, and has communication function to upload the processed data to the host computer, the battery (12) is used to provide power to the device; the test pen (13) is inserted through the slot on one side of the housing (10) to measure the voltage of the output terminal of the entire electric vehicle battery pack, the voltage is generally between 90V and 130V; the selection button (14) and the display (15) are fixed on the front of the panel (9) for the operator to select the battery model, operate the device and read and observe the test value.

[0010] Preferably, the above-mentioned electric vehicle battery liquid-electric detection device is characterized in that: the side of the housing (10) has an external charging port, the inside has a slot in which the battery (12) can be inserted, and the front of the housing also has a lever door to realize the quick replacement of the battery (12). Beneficial effects

[0011] The above technical solution has the following advantages or beneficial effects: Compared with the prior art, this utility model is based on ultrasonic sensor ranging, avoiding pollution caused by direct contact with liquids and the influence of ambient light on measurement accuracy. The equipment is easy to operate and provides accurate measurements. Furthermore, its dedicated structure allows for simultaneous measurement of individual battery cell voltages and is compatible with various battery models. The structure is simple, stable, and reliable. The use of a Bluetooth transmission module enables the device to connect to various host computers, realizing digital intelligent operation and maintenance of high-speed trains. Attached Figure Description

[0012] Embodiments of the invention will be described more fully with reference to the accompanying drawings. However, the drawings are for illustration and explanation only and do not constitute a limitation on the scope of the invention.

[0013] Figure 1 This is the overall appearance drawing of this utility model.

[0014] Figure 2 This is a structural diagram of the test head of this utility model.

[0015] Figure 3 This is a side sectional view of the test head of this utility model.

[0016] Figure 4 This is a structural diagram of the controller of this utility model.

[0017] Explanation of reference numerals in the attached diagram: 1. Test head; 2. Sensor; 3. Control box; 4. Test head housing; 5. Detection button; 6. Movable probe; 7. Dust cover; 8. Sliding sleeve; 9. Panel; 10. Housing; 11. Control board; 12. Battery; 13. Test pen; 14. Selection button; 15. Display. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0021] Please combine Figure 1As shown, the electric vehicle battery liquid-electric detection device includes a test head 1, a sensor 2, and a control box 3. The test head 1 is matched with the liquid filling port of the battery under test and is used to simultaneously measure the liquid level and the single cell voltage. Its small size allows it to be inserted into narrow spaces. The sensor 2 is used to detect the distance from the liquid level surface to the reference surface. The control box 3 is used to control and drive the test head 1 and can also be connected to a host computer to transmit data. The sensor 2 is nested inside the test head 1, and the test head 1 and the control box 3 are connected by a cable.

[0022] Combination Figure 2 As shown, the test head 1 is responsible for collecting liquid level data and single-cell voltage data. It includes a sensor 2 fixed on a sliding sleeve 8, which is embedded inside the test head housing 4. The sliding sleeve 8, in conjunction with the inner wall of the test head housing 4, can drive the test head 1 to slide vertically up and down. The detection button 5 and the movable probe 6 are installed on the outside of the test head housing 4. The movable probe 6 is used to touch the electrodes of the battery under test to measure the voltage. The dust cover 7 is installed on the upper part of the test head housing 4, and the tail of the sensor 2 can extend out from it.

[0023] Combination Figure 3 As shown, the test head 1 has a hollow cylindrical cavity inside, the sliding sleeve 8 can slide up and down along the cavity wall, the sensor 2 is fixed to the sliding sleeve 8 by threads, and the detection button 5 is fixed to the side of the test head housing 4 by threads.

[0024] Combination Figure 4 As shown, the control box 3 includes a panel 9 covering the housing 10; a control board 11 and a battery 12 are fixed inside the housing 10. The control board 11 is used to collect and process data, and also has communication functions to upload the processed data to the host computer. The battery 12 is used to provide power to the device; a test pen 13 is inserted through a slot on one side of the housing 10 to measure the voltage at the output terminal of the overall battery pack of the EMU, which is generally between 90V and 130V; a selection button 14 and a display 15 are fixed on the front of the panel 9, allowing the operator to select the battery model, operate the device, and read and observe the test values.

[0025] In a preferred embodiment of this utility model, combined with Figure 1 As shown, the procedure for the equipment to perform infusion testing is as follows:

[0026] Step S1: Turn on the power supply on the side of the control box 3 and press the start button to start the device.

[0027] Step S2: Select button 14 to the appropriate position according to the type of battery being tested.

[0028] Step S3: Remove the protective cap on the test head 1, align it with the liquid filling port of the battery under test, and at the same time align the movable probes (6) on both sides of the device with the electrodes on both sides of the battery under test and snap them off.

[0029] Step S4: After the reading on display 15 stabilizes, press the detection button 5 to collect the liquid level height and the unit voltage value.

[0030] Step S5: Repeat steps S3 to S4 to measure all individual cells in the battery compartment in sequence.

[0031] Step S6: End the individual cell liquid level and individual cell voltage measurement, remove the test pen 13 from the side of the housing 10 to measure the overall voltage of the battery compartment output bus, and press the detection button 5 to collect the data.

[0032] Step S7: End the test, turn off the power, and cover with the protective cover.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for testing the liquid and electrical properties of a high-speed train battery, characterized in that: It includes a test head (1), a sensor (2) and a control box (3); the sensor (2) is nested inside the test head (1), and the test head (1) and the control box (3) are connected by a cable; the test head (1) can simultaneously measure the liquid level value and the unit voltage value.

2. The electrolytic capacitor testing device for a high-speed train battery according to claim 1, characterized in that: The test head (1) includes a sensor (2) fixed on a sliding sleeve (8), which is embedded inside the test head housing (4); a detection button (5) and a movable probe (6) are installed on the outside of the test head housing (4); a dust cover (7) is installed on the upper part of the test head housing (4), from which the tail of the sensor (2) can extend.

3. The electrolytic capacitor testing device for a high-speed train battery according to claim 2, characterized in that: The sliding sleeve (8) is fixed to the sensor (2) and the movable probe (6) by threads, so that the sensor (2) and the movable probe (6) can slide up and down along the guide groove on the side of the test head housing (4) while the two are relatively fixed, which can adapt to the liquid and electrical measurement of different types of batteries.

4. The electrolytic capacitor testing device for a high-speed train battery according to claim 1, characterized in that: The control box (3) includes a panel (9) covering the housing (10); a control board (11) and a battery (12) fixed inside the housing (10); a test pen (13) being inserted through a slot on one side of the housing (10); and a selection button (14) and a display (15) fixed to the front of the panel (9).

5. The electrolytic capacitor testing device for a high-speed train battery according to claim 4, characterized in that: The casing (10) has an external charging port on the side and a slot inside where the battery (12) can be inserted. It also has a lever door on the front to allow for quick replacement of the battery (12).

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