Standby power supply of railway electric service system

Abstract

The utility model discloses a railway electric service system standby power supply comprising a rectangular cabinet body and a plurality of battery modules, the front side of the cabinet body is provided with a cabinet door through a hinge, the upper part of the rear side of the cabinet body is fixedly provided with a control box, the inner cavity of the cabinet body is fixedly provided with a bearing frame, and the bearing frame comprises a rectangular outer frame and an inner bearing frame. The inner carrying frame is welded to the middle of an inner cavity of the outer frame, a plurality of containing cavities are formed in the inner carrying frame in the height direction, module bins are correspondingly installed at the bottoms of the containing cavities, the battery modules are inserted into the module bins in a one-to-one correspondence mode, two vertical copper bars are installed on the rear side of the inner carrying frame through insulation columns, and a positive electrode and a negative electrode are arranged on the rear side of each battery module. Collision heads are formed at the outer ends of the electrodes, a plurality of collision bases are correspondingly installed on the copper bar in the height direction, and the collision heads are clamped with the collision bases in a one-to-one correspondence mode. When the battery module is replaced, the battery module can be directly pulled out from the front, and when the battery module is installed, connection can be realized by directly pushing the battery module, so that the battery module is very convenient and rapid to replace.

Description

Technical Field

[0001] This utility model relates to the field of backup power technology, specifically to backup power for railway signaling systems. Background Technology

[0002] The railway signaling section is a crucial organization within the railway system, primarily responsible for managing and maintaining the normal operation of ground signals, locomotive signals, and turnouts during train operation. In the event of a malfunction and the power grid's inability to guarantee signal power, diesel generator sets or battery storage devices are required as emergency backup power. A search revealed a Chinese utility model patent (CN218243104U) that discloses a backup power supply for a railway signaling system. This patent utilizes two independent, alternating backup batteries for power supply, allowing for battery replacement without system shutdown. However, this solution also has drawbacks: the two battery sets significantly increase the overall size and weight of the power supply, making it inconvenient to move and transport. Utility Model Content

[0003] The purpose of this invention is to provide a backup power supply for railway electrical systems in order to solve the problems mentioned in the background section.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a backup power supply for a railway electrical system, comprising a rectangular cabinet and multiple battery modules. A cabinet door is hinged to the front of the cabinet, and a control box is fixedly installed on the upper rear side of the cabinet. A support frame is fixedly installed within the cabinet's interior cavity. The support frame includes a rectangular outer frame and an inner support frame. The inner support frame is welded to the center of the inner cavity of the outer frame. Gaps are formed between the inner support frame and the outer frame around its perimeter. Multiple accommodating cavities are formed along the height direction of the inner support frame, and module compartments are correspondingly installed at the bottom of each cavity. Battery modules are inserted into the module compartments one by one. Two vertical and parallel copper busbars are installed on the rear side of the inner support frame via insulating posts. Two electrodes, positive and negative, are provided on the rear side of each battery module. The outer ends of the electrodes form collision heads. Multiple contact seats are correspondingly installed on the copper busbars along the height direction, and the collision heads engage with the contact seats one by one.

[0005] Preferably, the module compartment has a U-shaped cross-section and rotatable stop pins are installed on both sides of the front end. When the stop pins are flipped to a horizontal state, they block the front side of the battery module.

[0006] Preferably, the support frame is made of square tubular profile welded together, and the bottom of the cabinet is equipped with omnidirectional casters.

[0007] Preferably, a U-shaped handle is fixedly installed on the front side of the battery module for pushing, pulling, and gripping.

[0008] Compared with existing technologies, the advantages of this invention are as follows: After the battery module is inserted into the module compartment, its positive and negative electrodes respectively contact the two copper busbars at the rear. The battery modules in each layer are connected in parallel via copper plates. When replacing a battery module, it can be pulled out directly from the front, and when installing, it can be pushed in directly to establish a connection. Therefore, replacing battery modules is very convenient and quick. Furthermore, the voltage between the two copper busbars remains unchanged after one battery module is removed, allowing for uninterrupted operation during replacement intervals. Compared to using two sets of batteries, this invention helps reduce weight and size. Attached Figure Description

[0009] Figure 1 This is a side sectional view of the present invention.

[0010] Figure 2 This is a three-dimensional structural diagram of the support frame;

[0011] Figure 3 This is a schematic diagram of the three-dimensional structure of the module compartment;

[0012] Figure 4 This is a schematic diagram showing the connection between the battery module and the copper busbar.

[0013] In the diagram: 1. Cabinet; 2. Universal casters; 3. Control box; 4. Cabinet door; 5. Support frame; 51. Outer frame; 52. Inner support frame; 53. Reception cavity; 6. Battery module; 7. Module compartment; 8. Insulating column; 9. Copper busbar; 10. Stop pin; 11. Collision head; 12. Collision seat. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Please see Figure 1-4 This utility model provides a technical solution: a backup power supply for a railway electrical system, comprising a rectangular cabinet 1 and multiple battery modules 6. Each battery module 6 includes several battery cells connected in series and a casing. Ventilation holes and a fan are installed on the cabinet 1 for ventilation and heat dissipation. A cabinet door 4 is hinged to the front of the cabinet 1. A control box 3 is fixedly installed on the upper rear of the cabinet 1. Charging and discharging interfaces are located in the control box 3. A support frame 5, made of welded square tubular profile, is fixedly installed inside the cabinet 1. Universal casters 2 are installed at the bottom of the cabinet 1 for easy movement of the power supply.

[0016] The support frame 5 includes a rectangular outer frame 51 and an inner support frame 52. The inner support frame 52 is welded to the center of the inner cavity of the outer frame 51. Gaps are formed between the inner support frame 52 and the outer frame 51 around its perimeter for air circulation and to prevent local heat accumulation. The inner support frame 52 has multiple accommodating cavities 53 along its height. A module compartment 7 is installed at the bottom of each accommodating cavity 53. The module compartment 7 has a U-shaped cross-section and rotatable stop pins 10 installed on both sides of its front end. When the stop pins 10 are flipped to the horizontal position, they block the front side of the battery module 6. The stop pins 10 are used to prevent the battery module 6 from sliding forward after insertion, thus serving as a lateral limit.

[0017] Battery modules 6 are inserted one-to-one into module compartments 7. A U-shaped handle is fixedly installed on the front of each battery module 6 for pushing, pulling, and gripping. Two vertical and parallel copper busbars 9 are installed on the rear of the inner frame 52 via insulating posts 8. Each battery module 6 has positive and negative electrodes on its rear side, with the outer ends of the electrodes forming impact heads 11. Multiple contact seats 12 are installed along the height of the copper busbars 9, with each impact head 11 engaging with a contact seat 12. The impact heads 11 are olive-shaped or spindle-shaped. Each contact seat 12 has two spring-driven grippers. After the battery module 6 is pushed into place, the impact heads 11 are gripped tightly from opposite sides by the grippers. The battery modules 6 in each layer are connected in parallel via the copper busbars 9, and the upper end of the copper busbars 9 is electrically connected to the control box 3 via wires.

[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Railway electric system backup power supply, comprising a rectangular cabinet body (1) and a plurality of battery modules (6), the front side of the cabinet body (1) is hingedly installed with a cabinet door (4), and the rear upper side of the cabinet body (1) is fixedly installed with a control box (3), characterized in that: The inner cavity of the cabinet (1) is fixedly installed with a support frame (5). The support frame (5) includes a rectangular outer frame (51) and an inner support frame (52). The inner support frame (52) is welded to the middle of the inner cavity of the outer frame (51). There are gaps between the inner support frame (52) and the outer frame (51) on all sides. The inner support frame (52) has multiple accommodating cavities (53) along the height direction. The bottom of the accommodating cavity (53) is correspondingly installed with a module compartment (7). The battery modules (6) are inserted into the module compartments (7) one by one. Two vertical and parallel copper busbars (9) are installed on the rear side of the inner support frame (52) through insulating columns (8). The rear side of the battery module (6) is provided with two positive and negative electrodes. The outer end of the electrode forms a collision head (11). The copper busbar (9) is correspondingly installed with multiple contact seats (12) along the height direction. The collision head (11) is engaged with the contact seat (12) one by one.

2. The railway wayside system backup power supply of claim 1, wherein: The module compartment (7) has a U-shaped cross section and rotatable stop pins (10) are installed on both sides of the front end. When the stop pins (10) are flipped to the horizontal state, they block the front side of the battery module (6).

3. The railway wayside system backup power supply of claim 1, wherein: The support frame (5) is made of square tube profile welded together, and the bottom of the cabinet (1) is equipped with universal casters (2).

4. The railway wayside system backup power supply of claim 1, wherein: The battery module (6) is fixedly equipped with a U-shaped handle for pushing, pulling and gripping.

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