New energy locomotive battery cabinet

Abstract

This invention discloses a battery cabinet for new energy locomotives. The cabinet includes a single-layer frame; a movable battery compartment housed within the frame; a tooling door located on one side of the frame and openable outwards; an internal sliding rail located at the bottom inner side of the frame; and an upper sliding rail located inside the tooling door. When the tooling door is open, the upper sliding rail and the internal sliding rail are on the same plane. The movable battery compartment has two sets of roller mechanisms at its bottom, which engage with the internal and upper sliding rails respectively, allowing the battery compartment to move out of the frame along these rails. This invention solves the problem of existing locomotive battery cabinets being inconvenient for battery removal, installation, and maintenance.

Description

Technical Field

[0001] This invention relates to the field of rail locomotive equipment technology, specifically to a battery cabinet for new energy locomotives. Background Technology

[0002] The operation of rail locomotives requires multiple batteries connected in series to provide DC 110V control power. Existing locomotive control battery cabinets are mostly multi-layered structures installed on the vehicle or single-layered, hinged-top structures. Multi-layered structures, due to the large number of batteries, have limited space for battery installation and removal between layers, requiring specialized tools. While single-layered, hinged-top structures allow access to the batteries from above after opening the cover, the batteries' weight necessitates auxiliary equipment to remove them from the cabinet after opening. Both cabinet structures present problems of inconvenient battery installation and removal, and difficulties in inspection and maintenance, hindering regular battery inspection and maintenance. Therefore, a new type of battery cabinet for new energy locomotives with a reasonable structure that facilitates battery installation, removal, inspection, and maintenance is needed.

[0003] It should be noted that the above statements are only used to provide background information related to the present invention and do not necessarily constitute prior art. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention discloses a battery cabinet for new energy locomotives, which can solve the problem that existing locomotive battery cabinets are inconvenient for battery disassembly, installation, inspection, and maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: Battery cabinets for new energy locomotives include: The cabinet includes a single-layer frame, a movable battery compartment housed within the frame, and a tooling door located on one side of the frame, capable of opening outwards. An internal sliding rail is positioned at the bottom inner side of the frame, and an upper sliding rail is located inside the tooling door. When the tooling door is open, the upper sliding rail and the internal sliding rail are on the same plane. The movable battery compartment has two sets of roller mechanisms at its bottom, which engage with the internal and upper sliding rails respectively, allowing the battery compartment to move out of the frame along these rails.

[0006] According to some embodiments of the present invention, the sliding guide rail inside the cabinet and the sliding guide rail on the door are two sets of sliding guide rails arranged parallel to each other along the opening direction of the tooling door. The two sets of roller mechanisms roll along the two sets of sliding guide rails respectively to move the movable battery compartment from the cabinet frame to the tooling door.

[0007] According to some embodiments of the present invention, the tooling door is connected to the cabinet frame via hinges, the hinges including door hinges and cabinet hinges, the door hinges and the cabinet hinges being connected by pins; the tooling door is provided with two lugs, the cabinet frame is provided with lugs inside, and the lugs on the tooling door are connected to the lugs inside the cabinet frame via a pull rod mechanism to maintain the horizontal state of the tooling door after it is opened.

[0008] According to some embodiments of the present invention, the two sets of roller mechanisms are arranged parallel to each other along the opening direction of the tooling door, and the rolling surfaces of the two sets of roller mechanisms are on the same plane.

[0009] According to some embodiments of the present invention, a ventilation hood is provided on the top of the cabinet frame, the ventilation hood being used for air circulation between the inside and outside of the cabinet frame.

[0010] According to some embodiments of the present invention, the front end of the movable battery compartment is provided with a detachable door, which is used to remove the battery from the movable battery compartment after being opened.

[0011] According to some embodiments of the present invention, the cabinet frame is a single-layer structure and only accommodates one movable battery compartment, which contains multiple batteries, and the batteries are connected in series with each other.

[0012] This invention discloses a battery cabinet for new energy locomotives, which has the following advantages: By setting up an outward-opening tooling door, and ensuring that the sliding guide rail on the inner side of the tooling door is on the same plane as the sliding guide rail inside the bottom of the cabinet frame after the tooling door is opened, along with two sets of roller mechanisms at the bottom of the movable battery compartment, the battery compartment can be smoothly pulled out of the cabinet along the sliding guide rail to the tooling door. The battery can be removed without the need for auxiliary equipment, making disassembly and assembly convenient and significantly improving maintenance efficiency.

[0013] The cabinet frame adopts a single-layer structure, which can only accommodate one movable battery compartment. The structure is simple and avoids the problem of limited operating space caused by multi-layer structures, which is conducive to battery wiring and heat dissipation.

[0014] The tooling door is connected to the cabinet frame via hinges and is kept horizontal after being opened by a pull rod mechanism, providing a stable support platform for the removal of the battery compartment and ensuring the safety and reliability of the operation process.

[0015] The top of the cabinet frame is equipped with a ventilation hood, which allows air circulation between the inside and outside of the cabinet, which is beneficial for heat dissipation during battery operation and extends the battery's service life.

[0016] The movable battery compartment has a detachable door at the front. The battery can be taken out from the front of the battery compartment by opening the door, without having to remove the battery compartment and battery as a whole from the vehicle, which further simplifies the inspection and maintenance operation.

[0017] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, specific embodiments of the present invention are described below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the battery cabinet for new energy locomotives provided in an embodiment of the present invention.

[0020] Figure 2 This is a three-dimensional structural schematic diagram of the tooling door provided in an embodiment of the present invention.

[0021] Figure 3 This is a three-dimensional structural schematic diagram of the movable battery compartment provided in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0023] This embodiment provides a battery cabinet for a new energy locomotive. The battery cabinet is installed under the locomotive to house the batteries and provide DC 110V control power to the locomotive. The battery cabinet mainly includes a cabinet frame 1, a movable battery compartment 5, a tooling door 3, an internal sliding rail 2, and an upper sliding rail 6. The structure and connection relationships of each component are described in detail below.

[0024] The cabinet frame 1 is a single-layer structure, welded from stainless steel, with an overall rectangular box-like structure, possessing sufficient structural strength to withstand vibrations and impacts during vehicle operation. All panels of the cabinet frame 1 are fully welded, and the welds are ground and then coated with anti-rust primer and topcoat to meet the stringent waterproof, dustproof, and rustproof requirements of the under-vehicle installation environment. The base plate of the cabinet frame 1 is made of stainless steel with a thickness of no less than 3mm to support the overall weight of the movable battery compartment 5 and the battery.

[0025] Two ventilation hoods 4 are installed at the top of the cabinet frame 1. The ventilation hoods 4 employ a louvered structure with downward-sloping louvers, allowing airflow between the inside and outside of the cabinet frame 1 while effectively preventing rainwater and dust from entering the cabinet frame 1 through the ventilation hoods 4. A sealing gasket is installed between the ventilation hoods 4 and the top plate of the cabinet frame 1, and the connection is secured with bolts to ensure no leakage at the joint. The ventilation hoods 4 allow the heat generated by the battery during charging and discharging to dissipate promptly, maintaining the battery within a suitable operating temperature range and contributing to extending the battery's lifespan.

[0026] The back of the cabinet frame 1 is provided with a cable outlet hole, and a cable connector is installed at the cable outlet hole for the positive and negative leads of the battery to pass through. A sealing ring is provided between the cable connector and the cabinet frame 1 to ensure the sealing performance of the cable outlet and prevent moisture and dust from entering the interior of the cabinet frame 1 from the cable outlet hole.

[0027] The bottom of the cabinet frame 1 is equipped with a mounting base, which has bolt holes for fixing the cabinet frame 1 to the mounting bracket under the locomotive. Reinforcing ribs are welded between the mounting base and the bottom plate of the cabinet frame 1 to enhance the load-bearing capacity and vibration resistance of the mounting base.

[0028] like Figure 3 As shown, the movable battery compartment 5 is housed within the cabinet frame 1 and is used to accommodate the batteries. The movable battery compartment 5 has an open rectangular structure and is made of stainless steel sheet, bent and welded, featuring light weight, high strength, and corrosion resistance. The internal dimensions of the movable battery compartment 5 are determined according to the external dimensions of the batteries to be placed inside, ensuring the batteries are securely placed within the compartment and preventing displacement or shaking during locomotive operation.

[0029] The bottom of the movable battery compartment 5 is equipped with two sets of roller mechanisms 8. These two sets of roller mechanisms 8 are arranged parallel to each other along the opening direction of the tooling door 3, and the rolling surfaces of the two sets of roller mechanisms 8 are on the same plane, ensuring that the movable battery compartment 5 moves smoothly on the sliding guide rail without tilting or jamming. Each set of roller mechanisms 8 includes a roller bracket and a roller. The roller is rotatably mounted on the roller bracket via a roller shaft, and the roller bracket is fixedly mounted to the bottom of the movable battery compartment 5. The roller is made of wear-resistant material, possessing sufficient load-bearing capacity and wear resistance, capable of supporting the overall weight of the movable battery compartment 5 and the battery, and rolling repeatedly on the sliding guide rail for extended periods without significant wear.

[0030] The front end of the movable battery compartment 5 is equipped with a detachable door 9. The detachable door 9 is connected to the side wall of the movable battery compartment 5 by bolts or clips, making disassembly convenient. After opening the detachable door 9, the battery can be directly removed or inserted from the front of the movable battery compartment 5 without having to remove the entire battery compartment and battery from the vehicle, greatly simplifying battery disassembly, assembly, and maintenance. A sealing strip is provided between the inner side of the detachable door 9 and the contact surface of the movable battery compartment 5, which acts as a seal when the detachable door 9 is closed, preventing dust and moisture from entering the interior of the movable battery compartment 5.

[0031] The inner sides of both side walls of the movable battery compartment 5 are equipped with battery positioning baffles. These baffles fit snugly against the side walls of the batteries to limit horizontal displacement of the batteries within the compartment, ensuring the batteries remain in a fixed position during locomotive operation. An insulating pad is also provided on the inner bottom side of the movable battery compartment 5. This pad is placed between the batteries and the bottom of the compartment, providing electrical insulation and vibration damping.

[0032] The fixture door 3 is located on one side of the cabinet frame 1 and can open outwards. The fixture door 3 is made of stainless steel sheet, bent and welded, and its outer surface is flush with the outer surface of the cabinet frame 1, ensuring the overall appearance of the cabinet frame 1 is flat. The fixture door 3 has sealing grooves around its perimeter, and sealing strips are embedded in the sealing grooves. When the fixture door 3 is closed, the sealing strips fit tightly against the door frame of the cabinet frame 1, forming a reliable seal that meets waterproof and dustproof requirements.

[0033] The tool door 3 is connected to the cabinet frame 1 via hinges. The hinges include a door hinge and a cabinet hinge. The door hinge is fixedly installed on the lower inner side of the tool door 3, and the cabinet hinge is fixedly installed on the lower part of the door frame of the cabinet frame 1. The door hinge and the cabinet hinge are connected by a pin, allowing the tool door 3 to open by rotating outwards around the pin. The hinges are installed close to the lower edge of the tool door 3, allowing the tool door 3 to rotate downwards to a near-horizontal position after opening.

[0034] The tooling door 3 has an upper sliding guide rail 6 on its inner side. The upper sliding guide rail 6 is fixedly installed on the bottom inner side of the tooling door 3 by bolts or welding, and extends along the width direction of the tooling door 3. When the tooling door 3 is opened, the upper sliding guide rail 6 and the inner sliding guide rail 2 on the bottom inner side of the cabinet frame 1 are on the same plane, forming a continuous and seamless sliding channel. The two sets of roller mechanisms 8 at the bottom of the movable battery compartment 5 can smoothly transition from the inner sliding guide rail 2 to the upper sliding guide rail 6 without jamming or jumping due to the height difference at the joint of the guide rails.

[0035] The tooling door 3 has two lugs, and the cabinet frame 1 also has lugs inside. The lugs on the tooling door 3 and the lugs inside the cabinet frame 1 are connected by a pull rod mechanism. The pull rod mechanism includes a pull rod and a locking element. The two ends of the pull rod are hinged to the lugs on the tooling door 3 and the lugs inside the cabinet frame 1, respectively. When the tooling door 3 is opened to the horizontal position, the pull rod mechanism extends to its limit position and automatically locks, maintaining the horizontal state of the tooling door 3 and providing a stable support platform for the removal of the movable battery compartment 5. The locking of the pull rod mechanism ensures that the tooling door 3 remains horizontal even when bearing the weight of the movable battery compartment 5 and the battery, preventing it from sagging or wobbling under load, thus ensuring the safety and reliability of the operation. When it is necessary to close the tooling door 3, the locking of the pull rod mechanism is released, and the tooling door 3 is flipped upwards to the closed position.

[0036] The tooling door 3 is equipped with a handle and a door lock on the outside. The handle is used for opening and closing the tooling door 3, and the door lock is used for locking the tooling door 3 after it is closed to prevent the tooling door 3 from being accidentally opened during locomotive operation.

[0037] The sliding guide rail 2 inside the cabinet is located at the bottom inside the cabinet frame 1, and the sliding guide rail 6 on the door is located inside the tooling door 3. Both the sliding guide rail 2 inside the cabinet and the sliding guide rail 6 on the door are two sets of sliding guide rails arranged parallel to the opening direction of the tooling door 3, and the distance between the two sets of sliding guide rails matches the distance between the two sets of roller mechanisms 8 at the bottom of the movable battery compartment 5.

[0038] Both the internal sliding rail 2 and the external sliding rail 6 are made of stainless steel profiles. The top surface of the rail is a smooth rolling surface, on which the rollers of the roller mechanism 8 roll. Flanged edges are provided on both sides of the rail, which limit and guide the rollers, preventing the movable battery compartment 5 from shifting or coming off during movement. The internal sliding rail 2 is fixedly installed on the inner bottom plate of the cabinet frame 1 by bolts or welding, and the external sliding rail 6 is fixedly installed on the inner side of the tooling door 3 by bolts or welding. During installation, it must be ensured that the rolling surfaces of the internal sliding rail 2 and the external sliding rail 6 are on the same plane after the tooling door 3 is opened, with no steps or gaps at the joint, to ensure a smooth transition of the movable battery compartment 5.

[0039] In this embodiment, four 6-GFM-150 type batteries are placed inside the movable battery compartment 5. These batteries are valve-regulated sealed lead-acid batteries with a rated voltage of 12V and a rated capacity of 150Ah. The four batteries are connected in series in pairs, and the total output voltage is DC48V, which is converted into DC110V control power by a DC / DC converter installed on the locomotive.

[0040] The batteries, from left to right, are labeled as Battery 1, Battery 2, Battery 3, and Battery 4. The positive terminal of Battery 1 is connected to the input terminal of a fuse via a connecting wire. The output terminal of the fuse is led out through a cable outlet on one side of the back of the cabinet frame 1 via a lead cable, serving as the positive output terminal of the battery pack. The negative terminal of Battery 4 is led out through a cable outlet on the other side of the back of the cabinet frame 1 via a lead cable, serving as the negative output terminal of the battery pack. The negative terminal of Battery 1 is connected to the positive terminal of Battery 2 via a series connector, the negative terminal of Battery 2 is connected to the positive terminal of Battery 3 via a series connector, and the negative terminal of Battery 3 is connected to the positive terminal of Battery 4 via a series connector, thus achieving a series connection of the four batteries.

[0041] The fuses are installed in fuse holders inside the cabinet frame 1 and are used for short-circuit and overcurrent protection of the battery pack. The series connecting pieces use tin-plated copper busbars, which have good conductivity and corrosion resistance. All connections are secured with bolts and coated with anti-oxidation conductive grease to ensure reliable connections and low contact resistance. All connecting wires and lead-out cables are made of high-temperature resistant and flame-retardant cables to meet the harsh operating environment under the locomotive.

[0042] The working process of the new energy locomotive battery cabinet in this embodiment is as follows: When the battery needs inspection or maintenance, first unlock the door lock on the tooling door 3, and then use the handle to flip the tooling door 3 outwards. As the tooling door 3 flips outwards around the pin axis, the pull rod mechanism unfolds accordingly. When the tooling door 3 is flipped to the horizontal position, the pull rod mechanism automatically locks, maintaining the horizontal state of the tooling door 3. At this time, the sliding guide rail 6 on the door and the sliding guide rail 2 inside the cabinet align to form a continuous sliding channel, and the rolling surface of the sliding guide rail 6 on the door and the rolling surface of the sliding guide rail 2 inside the cabinet are on the same plane.

[0043] Then, pull the movable battery compartment 5 outward along the sliding guide rail. The two sets of roller mechanisms 8 at the bottom of the movable battery compartment 5 roll along the sliding guide rail 2 inside the cabinet, causing the movable battery compartment 5 to gradually move out of the cabinet frame 1. When the roller mechanism 8 transitions from the sliding guide rail 2 inside the cabinet to the sliding guide rail 6 on the door, the transition is smooth and without obstruction because the rolling surfaces of the inner and outer guide rails are on the same plane. Continue pulling the movable battery compartment 5 until it is completely moved onto the tooling door 3, at which point the roller mechanism 8 stops on the sliding guide rail 6 on the door.

[0044] At this point, the movable battery compartment 5 is fully exposed in front of the operator. By unscrewing the connecting bolts or loosening the clips of the detachable door 9, and removing the detachable door 9, the battery requiring inspection or replacement can be directly removed from the front of the movable battery compartment 5. The operator can then test the battery's voltage, internal resistance, and other parameters, or replace the battery. Because the battery can be removed directly from the front of the battery compartment, there is no need for auxiliary equipment to lift and unload the entire battery compartment from the vehicle; the operation can be completed by a single person, greatly improving maintenance efficiency.

[0045] After maintenance, place the battery back into the movable battery compartment 5, ensuring the battery's positioning surface aligns with the battery positioning baffle to guarantee proper placement. Then, reinstall the detachable door 9 back into the front end of the movable battery compartment 5, tightening the connecting bolts or engaging the clips. Push the movable battery compartment 5 inward along the sliding guide rail; the two sets of roller mechanisms 8 will roll along the sliding guide rail 6 on the door and transition to the sliding guide rail 2 inside the cabinet, pushing the movable battery compartment 5 back to its original position within the cabinet frame 1. Finally, release the locking mechanism of the pull rod, flip the tooling door 3 upward to close it, ensuring the sealing strip is tightly fitted to the door frame, and lock the door to complete all operations.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Modifications or substitutions to the technical solutions described in the foregoing embodiments do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery cabinet for new energy locomotives, characterized in that, include: Cabinet frame, wherein the cabinet frame is a single-layer structure; A movable battery compartment is provided within the cabinet frame for accommodating storage batteries. A tooling door is provided on one side of the cabinet frame, and the tooling door can be opened outwards; The cabinet has an internal sliding guide rail, which is located at the bottom inner side of the cabinet frame. A sliding guide rail on the door, wherein the sliding guide rail on the door is disposed on the inner side of the tooling door; When the tooling door is opened, the sliding guide rail on the door and the sliding guide rail inside the cabinet are on the same plane. The bottom of the movable battery compartment is provided with two sets of roller mechanisms. The two sets of roller mechanisms cooperate with the sliding guide rail inside the cabinet and the sliding guide rail on the door, respectively, so that the movable battery compartment can be moved out of the cabinet frame along the sliding guide rail inside the cabinet and the sliding guide rail on the door.

2. The new energy locomotive battery cabinet according to claim 1, characterized in that, The sliding guide rail inside the cabinet and the sliding guide rail on the door are two sets of sliding guide rails arranged parallel to the opening direction of the tooling door. The two sets of roller mechanisms roll along the two sets of sliding guide rails respectively to move the movable battery compartment from the cabinet frame to the tooling door.

3. The new energy locomotive battery cabinet according to claim 1, characterized in that, The tooling door is connected to the cabinet frame via hinges, which include a door hinge and a cabinet hinge. The door hinge and the cabinet hinge are connected by a pin. The tooling door has two lugs, and the cabinet frame has lugs inside. The lugs on the tooling door and the lugs inside the cabinet frame are connected by a pull rod mechanism to maintain the horizontal state of the tooling door when it is opened.

4. The new energy locomotive battery cabinet according to claim 1, characterized in that, The two sets of roller mechanisms are arranged parallel to each other along the opening direction of the tooling door, and the rolling surfaces of the two sets of roller mechanisms are on the same plane.

5. The new energy locomotive battery cabinet according to claim 1, characterized in that, The top of the cabinet frame is equipped with a ventilation hood, which is used for air circulation between the inside and outside of the cabinet frame.

6. The new energy locomotive battery cabinet according to claim 1, characterized in that, The movable battery compartment has a detachable door at its front end, which is used to remove the battery from the movable battery compartment after the detachable door is opened.

7. The new energy locomotive battery cabinet according to claim 1, characterized in that, The cabinet frame is a single-layer structure that can only accommodate one movable battery compartment. Multiple batteries are placed inside the movable battery compartment, and the batteries are connected in series with each other.

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