An electric power supply box for a trackless vehicle in a mine

Abstract

The utility model discloses an underground trackless vehicle power supply box relates to power supply box technical field, including box and install two power supply battery in the box, the upper side of box articulates the box cover, and the box cover is fixedly connected with the compression strip, and the top of two power supply battery is paved with rubber pad, and the compression strip is pressed on the rubber pad, and the sidewall of box still is fixed with bipolar main power isolation switch, and is used for protecting the fuse no.

Description

Technical Field

[0001] This utility model relates to the field of power supply box technology, specifically to a power supply box for an underground trackless vehicle. Background Technology

[0002] Trackless vehicles are critical transportation equipment in enclosed environments such as underground mines and tunnels. The battery box, as the core component of electric trackless vehicles, is responsible for providing a stable and reliable power supply. However, the underground environment is complex, with challenges such as confined space, poor ventilation, high humidity, abundant dust, and corrosive gases. This places extremely high demands on the battery box's environmental adaptability, safety, heat dissipation performance, and ease of maintenance. Currently, traditional battery boxes used in underground applications generally suffer from insufficient protection levels, lack of short-circuit protection, poor heat dissipation, and difficult maintenance, leading to shortened battery life, reduced vehicle operating efficiency, and even safety hazards. Therefore, developing a battery box that is adaptable to the harsh underground environment, easy to maintain, has good heat dissipation, includes short-circuit protection, and has a compact structure has become a key technological requirement driving the development of trackless vehicles in underground mines. Utility Model Content

[0003] The purpose of this utility model is to provide a power supply box for trackless underground vehicles, which aims to solve the problem of lack of short-circuit protection in the aforementioned background technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a power supply box for an underground trackless vehicle, comprising a box body and two power supply batteries installed inside the box body. A box cover is hinged to the upper side of the box body, and a pressure strip is fixedly connected to the box cover. Rubber pads are laid on the top of the two power supply batteries, and the pressure strip presses on the rubber pads. A double-pole main power isolation switch is also fixed on the side wall of the box body, as well as a fuse one and two fuse two for protecting the power supply of the power box.

[0005] Furthermore, a latch is fixedly connected to the front end of the lid, and the latch is locked to the front side wall of the box by fastening bolts. A handle is fixedly installed on the top of the lid.

[0006] Furthermore, the bottom of the box is provided with a mounting bracket for mounting and connecting to the vehicle body.

[0007] Furthermore, a through hole is provided on the rear side wall of the enclosure for the power supply cable to pass through.

[0008] Furthermore, drainage holes are provided on the bottom wall of the box.

[0009] This utility model has the following beneficial effects:

[0010] This utility model provides a power supply box for underground trackless vehicles. It has a compact spatial structure and can continuously and stably output power to underground trackless equipment, ensuring stable vehicle operation. The structure is simple, has good heat dissipation, is easy to maintain, and has a low failure rate. It integrates the main power switch and fuse into one unit, which can stably provide the required DC power to the underground vehicle and ensure normal vehicle operation. It solves the problem that traditional trackless vehicles require a separate electrical control box to house the main power switch and fuse due to their compact structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 3 This is a bottom view of the structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the electrical principle of this utility model;

[0015] In the diagram: 1. Box body; 2. Box cover; 3. Pressure strip; 4. Rubber gasket; 5. Double-pole main power disconnect switch; 6. Fuse 1; 7. Fuse 2; 8. Lock; 9. Handle; 10. Mounting bracket; 11. Through hole; 12. Drain hole. Detailed Implementation

[0016] like Figures 1 to 4 As shown, a power supply box for an underground trackless vehicle includes a box body 1 and two power supply batteries installed inside the box body 1. The corners of the bottom inner side of the box body 1 are filled with rigid foam, which is secured to the corners of the two power supply batteries. A box cover 2 is hinged to the upper side of the box body 1, and a pressure strip 3 is fixedly connected to the box cover 2. Rubber pads 4 are laid on the top of the two power supply batteries, and the pressure strip 3 presses on the rubber pads 4. A double-pole main power isolation switch 5 for controlling the switching of the main power supply of the power supply box is also fixed on the side wall of the box body 1. A fuse 6 and two fuses 7 are provided on the rear inner wall for protecting the power supply of the power supply box.

[0017] Fuse 1 (6) is rated 300A and fuse 2 (7) is rated 50A. They are used to prevent battery damage caused by short circuits in external circuits. Both fuse 1 (6) and fuse 2 (7) are installed on the inner side wall of the housing 1 via fuse mounting brackets. When the housing cover 2 is closed, the pressure strip 3 presses against the rubber gasket 4 to secure the battery and prevent short circuits caused by violent shaking of the battery during vehicle operation.

[0018] The two power supply batteries are both 12V, and are connected in series to form a 24V power supply. The positive terminal of this power supply passes through fuse 6 and then through the double-pole main power disconnect switch 5, which controls the on / off state of the power output. Fuse 6 provides protection for the main power supply. After the 24V power supply comes out of the main switch, it passes through two fuses 7 to form two 24V power supply circuits. Each 24V power supply circuit is protected by a 50A fuse 7. This system can simultaneously provide two power supply circuits for the trackless vehicle underground, one for the working system and the other for the walking system, preventing the vehicle from becoming immobile due to a failure in the working system.

[0019] A latch 8 is fixedly connected to the front end of the cover 2. The latch 8 is locked to the front side wall of the box body 1 by fastening bolts. A handle 9 is fixedly installed on the top of the cover 2. The handle 9 consists of a pin and a handle. The pin is placed on the cover and the handle is connected to two concentric pins, which makes it convenient for the operator to open the cover and inspect the power supply box, thus facilitating maintenance.

[0020] The bottom of the housing 1 is provided with a mounting bracket 10 for installation and connection with the vehicle body.

[0021] A through hole 11 is provided on the rear side wall of the enclosure 1 for the power supply cable to pass through.

[0022] A drain hole 12 is provided on the bottom wall of the box 1. When water enters the power box, it can drain the water in time to prevent the power supply battery from being damaged by water.

[0023] The specific operation process of this utility model is as follows:

[0024] The housing 1 is fixedly installed on the body of the loader using the mounting bracket 10. The positive terminal of the power supply battery is connected to one end of the fuse mounting bracket of fuse 6 via a cable. The other end of the fuse mounting bracket of fuse 6 is connected to the double-pole main power disconnect switch 5. The double-pole main power disconnect switch 5 is connected to the fuse mounting brackets of two fuses 7 respectively. The other end of the fuse mounting brackets of the two fuses 7 is connected to a cable. The cable passes through the through hole 11 and is connected to the vehicle load. The negative terminal of the power supply battery is grounded.

Claims

1. A power supply box for an underground trackless vehicle, comprising a box body (1) and two power supply batteries installed inside the box body (1), characterized in that: The box body (1) is hinged to the upper side with a box cover (2), and a pressure strip (3) is fixedly connected to the box cover (2). Rubber pads (4) are laid on the top of the two power supply batteries. The pressure strip (3) presses on the rubber pads (4). A double-pole main power isolation switch (5) is also fixed on the side wall of the box body (1), as well as a first fuse (6) and two second fuses (7) for protecting the power supply of the power box.

2. The power supply box according to claim 1, characterized in that, The front end of the box cover (2) is fixedly connected to a buckle (8), and the buckle is locked to the front side wall of the box body (1) by fastening bolts. A handle (9) is fixedly installed on the top of the box cover (2).

3. The power supply box according to claim 1, characterized in that, The bottom of the housing (1) is provided with a mounting bracket (10) for installation and connection with the vehicle body.

4. The power supply box according to claim 1, characterized in that, The rear side wall of the enclosure (1) is provided with a through hole (11) for the power supply cable to pass through.

5. The power supply box according to claim 1, characterized in that, The bottom wall of the box (1) is provided with a drainage hole (12).

Images