A battery liquid adding device for a motor train unit

Abstract

The application discloses a motor train unit battery liquid adding device, which comprises a control box, a pump body and a liquid adding head. The pump body is nested in the control box, and the liquid adding head is connected with the control box and the pump body. The device has the function of Bluetooth wireless data transmission, can be used for quickly adding battery electrolyte and can be automatically started and stopped. The automatic stopping of liquid adding is realized through a liquid level probe nested in the test head. The device transmits state signals such as "ready to add liquid", "adding liquid", "adding liquid completed" and the like to an upper computer through Bluetooth. The device has the advantages of simple structure, fast liquid adding and convenient operation.

Description

Technical Field

[0001] This technical solution mainly relates to the field of EMU maintenance, and in particular to the field of EMU battery operation. Background Technology

[0002] When a high-speed train starts, the battery provides a stable power supply to equipment and systems such as startup activation, pantograph power supply, vacuum circuit breaker closure, and charger startup, enabling the train to have initial power and control conditions. In the event of a main power failure, the battery can provide emergency power to ensure train control, communication, emergency air conditioning, and emergency lighting functions. Alkaline batteries in high-speed trains widely use electrolyte as the battery polarity carrier. During operation, the internal resistance generates heat, causing the electrolyte to evaporate. To ensure the stability of the battery voltage and chemical performance, electrolyte needs to be replenished.

[0003] The existing method of adding electrolyte involves manually pouring water from a bottle into the battery's electrolyte inlet, stopping the addition based on the maximum and minimum electrolyte level markings on the semi-transparent battery casing. However, the battery casing is relatively thick, and due to lighting conditions at the maintenance site, it is difficult to clearly see the electrolyte level from the casing. Manual addition is challenging, and the electrolyte levels in multiple individual batteries are often inconsistent, failing to reach the optimal level. Therefore, a specialized tool for adding electrolyte to high-speed train batteries needs to be developed to facilitate convenient, rapid, and accurate electrolyte replenishment. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide a single-person operation for quickly replenishing battery electrolyte using a battery electrolyte filling device. The device draws distilled water from a tank, and the operator simply holds the filling head for convenient and rapid electrolyte addition. The filling head is equipped with a liquid level probe; when the electrolyte level rises and touches the probe, the filling automatically stops. This device, through the liquid level probe, ensures that the electrolyte level of all individual batteries is uniform and at the optimal level after filling, which helps maintain balanced voltage in each battery and extends their service life.

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

[0006] A battery filling device for high-speed trains, characterized in that: it includes a control box (1), a pump body (2) and a filling head (3), the pump body (2) is nested inside the control box (1), the filling head (3) is connected to the control box (1) by a cable, and the filling head (3) is connected to the pump body (2) to realize automatic start and stop of filling; the filling head (3) includes a start button (4), a filling pipe (5), a liquid level probe (6), a negative electrode active probe (7), and a one-way valve (8), the start button (4) is installed on the filling head (3) by a threaded connection, and the filling pipe (5) is installed through the filling head (3). The upper part of the filling tube (5) is connected to a one-way valve (8), and the lower part of the filling head (3) is equipped with a liquid level probe (6). A pair of negative electrode movable probes (7) are installed on the side of the filling head (3). The negative electrode movable probes (7) are used to contact the negative terminals of batteries of different specifications respectively. The liquid level probes (6) and the filling tube (5) are fixedly installed on the central hole of the filling head and are used to extend into the battery when adding liquid. The one-way valve (8) on the upper part of the filling tube (5) is used to prevent liquid backflow or air intake. The bottom of the filling head is provided with a multi-layer ladder to accommodate battery filling holes of different diameters.

[0007] Preferably, the above-mentioned electric train battery liquid filling device is characterized in that: the control box (1) includes a power switch (9), a junction box (10), a water outlet (11), and a water inlet (12), the pump body (2) is installed inside the control box (1), and the control box (1) is embedded with a Bluetooth module. Beneficial effects

[0008] The above technical solution has the following advantages or beneficial effects: Compared with the existing manual electrolyte filling method, this utility model uses a pump to draw distilled water from the water tank, which can replenish electrolyte for multiple individual batteries without repeatedly filling them with water; the filling head is lightweight and quick, easy to operate, and its built-in liquid level probe can accurately control the filling height and realize automatic start; the filling device of this utility model can ensure that the liquid level of multiple individual batteries is uniform, avoiding voltage differences caused by different electrolyte levels, thereby extending the battery's service life; through the built-in Bluetooth communication module, status signals such as "preparing to add electrolyte", "adding electrolyte", and "adding electrolyte complete" can be transmitted to the computer, enabling feedback on the filling status. Attached Figure Description

[0009] 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.

[0010] Figure 1 This is the overall appearance drawing of this utility model.

[0011] Figure 2 This is a structural diagram of the liquid dispensing head of this utility model.

[0012] Figure 3 This is a bottom view of the liquid dispensing head of this utility model.

[0013] Figure 4 This is a structural diagram of the controller of this utility model.

[0014] Explanation of reference numerals in the attached diagram: 1. Controller; 2. Pump body; 3. Filling head; 4. Start button; 5. Filling pipe; 6. Liquid level probe; 7. Negative electrode movable probe; 8. Check valve; 9. Power switch; 10. Junction box; 11. Water outlet; 12. Water inlet. Detailed Implementation

[0015] 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.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] The present invention will be further described below with reference to the accompanying drawings and typical embodiments, but this is not intended to limit the present invention.

[0018] Please combine Figure 1 As shown, the electric train battery liquid filling device includes a control box (1), a pump body (2) and a liquid filling head (3); the pump body (2) is nested inside the control box (1), and the liquid filling head (3) is connected to the control box (1) by a cable; the liquid filling head (3) is connected to the pump body (2), which can realize the automatic start and stop of liquid filling.

[0019] Combination Figure 2As shown, the filling head (3) includes a start button (4), a filling tube (5), a liquid level probe (6), a negative electrode movable probe (7), and a one-way valve (8). The filling tube (5) and the liquid level probe (6) can extend into the battery filling hole. The negative electrode movable probe (7) is elastically applied to the negative terminal of the battery during filling. When the electrolyte level rises and contacts the liquid level probe (6), the pump (2) stops filling. There are two negative electrode movable probes (7) on the filling head (3), which can contact the negative terminals of batteries of different specifications. When the start button (4) is pressed and held during filling, it can not only control the pump (2) to start filling, but also manually stop filling if the filling has not stopped automatically. The liquid level probe (6) and the filling tube (5) are fixedly installed on the central hole of the filling head. The bottom of the filling head has multiple steps, which can be used to lock the filling head onto the battery filling hole during filling. The check valve (8) prevents liquid backflow and air intake into the pipe, which can cause splashing.

[0020] Combination Figure 3 As shown, the bottom of the filling head has multiple stepped platforms, which can be locked onto the filling holes of different types of batteries.

[0021] Combination Figure 4 As shown, the control box (1) includes a power switch (9), a junction box (10), a water outlet (11), and a water inlet (12); the pump body (2) is installed inside the control box. The control box (1) is equipped with a Bluetooth module, which transmits status signals such as "ready to add liquid", "adding liquid", and "adding liquid completed" to the computer, and can realize feedback of the liquid adding status.

[0022] In a typical embodiment of this utility model, combined with Figure 1 As shown, the liquid addition process for the equipment is as follows:

[0023] Step S1: Turn on the controller power switch. The Bluetooth module will automatically transmit a "ready to add liquid" signal to the computer.

[0024] Step S2: Attach the ladder at the bottom of the filling head to the filling port, make the negative electrode probe contact the negative terminal of the battery, press and hold the start button on the filling head to begin filling, and the Bluetooth module will automatically transmit a "filling" signal to the computer.

[0025] Step S3: When the electrolyte level rises and touches the level probe of the filling head, the pump stops working and transmits a "filling complete" signal to the host computer via Bluetooth.

[0026] Step S4: Release the start button on the liquid dispensing head to finish dispensing.

[0027] The above description is only a typical 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 contents of the present utility model specification and illustrations should be included within the protection scope of the present utility model.

Claims

1. A battery electrolyte filling device for high-speed trains, characterized in that: The system includes a control box (1), a pump body (2), and a filling head (3). The pump body (2) is nested inside the control box (1). The filling head (3) is connected to the control box (1) via a cable. The filling head (3) is connected to the pump body (2) to achieve automatic start and stop of filling. The filling head (3) includes a start button (4), a filling pipe (5), a liquid level probe (6), a negative electrode active probe (7), and a one-way valve (8). The start button (4) is installed on the filling head (3) via a threaded connection. The filling pipe (5) is installed through the filling head (3). The upper part of the filling pipe (5) is connected to... A one-way valve (8) is provided. A liquid level probe (6) is installed at the bottom of the filling head (3). A pair of negative electrode movable probes (7) are installed on the side of the filling head (3). The negative electrode movable probes (7) are used to contact the negative terminals of batteries of different specifications. The liquid level probes (6) and the filling tube (5) are fixedly installed on the central hole of the filling head and are used to extend into the battery when adding liquid. The one-way valve (8) at the top of the filling tube (5) is used to prevent liquid backflow or air intake. The bottom of the filling head is provided with a multi-layer ladder to accommodate battery filling holes of different diameters.

2. The battery electrolyte filling device for high-speed trains according to claim 1, characterized in that: The control box (1) includes a power switch (9), a junction box (10), a water outlet (11), and a water inlet (12). The pump body (2) is installed inside the control box (1), and a Bluetooth module is embedded inside the control box (1).

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