Extensible switch leading-out terminal structure for low-voltage generator car

Abstract

The invention discloses an expandable switch leading-out terminal structure for a low-voltage generator car. The expandable switch leading-out terminal structure comprises a main body bracket; the sliding rail is fixedly connected to the accommodating cavity; the sliding seat is slidably connected to the sliding rail; each outgoing line switch module is arranged on a sliding seat, and in a first working state, all the sliding seats are locked on a sliding rail, so that the outgoing line switch modules are arranged side by side and are electrically isolated from one another, and each outgoing line switch module independently supplies power to one path of load; and in a second working state, the sliding seat is unlocked and the position of the sliding seat is adjusted, so that part or all of the outgoing line switch modules are adjacent, and the outgoing line terminals of the adjacent outgoing line switch modules are electrically connected in parallel through the connecting pieces, so that multiple paths of small current outputs are converged into one path or multiple paths of large current outputs. The structure can overcome the defects that the leading-out terminal of the generator car is poor in flexibility and difficult to adapt to diversified power supply requirements in the prior art, and solves the problems of potential safety hazards, low efficiency and the like existing in a traditional crimping mode.

Description

Technical Field

[0001] This invention relates to the technical field of low-voltage generator vehicles, and more specifically to an expandable switch output terminal structure for low-voltage generator vehicles. Background Technology

[0002] In scenarios such as power emergency repairs, field operations, or temporary power supply, mobile generators play a crucial role as mobile power sources. Traditional low-voltage generators typically have a fixed number and specifications of outgoing interfaces, which exposes limitations when facing diverse power supply demands. For example, when simultaneously powering multiple low-power devices, there may be insufficient outgoing interfaces or wasted power; conversely, when powering a single high-power device, the current capacity of a single outgoing interface may be insufficient, requiring complex external parallel connection schemes, increasing operational difficulty and safety hazards.

[0003] Furthermore, the current connection of low-voltage lines and flexible cables in low-voltage generator vehicles in power distribution networks mainly uses hydraulic crimping. This method requires carrying heavy hydraulic equipment and various tools / molds when working at heights, resulting in high workload, long operation time, low efficiency, and personal safety hazards for construction workers. Especially for flexible cables composed of multiple strands of fine copper wire, crimping is prone to insecure connections or broken strands, leading to poor contact, overheating, and wire burning. Due to the frequent connection and disconnection of cables in generator vehicles, the connection points between the lugs and conductors are subjected to severe stress and wear, making insulation damage and broken copper strands more likely. Traditional crimping methods are also susceptible to vibration, and dragging or wrapping the conductors can easily cause bending at the connection point between the terminal and the conductor, damaging the conductor. Even with thickened insulating tape, it is easy to wear off. Therefore, there is an urgent need for a crimp-free, self-locking connection device to solve these problems.

[0004] Existing generator vehicle outgoing line structures often lack flexibility and scalability, making it difficult to quickly adapt to power supply demands of different current levels and number of circuits. Furthermore, numerous problems with traditional crimp connection methods also restrict power supply efficiency and safety. Therefore, developing a scalable switchout outgoing line structure for low-voltage generator vehicles that can be flexibly configured according to actual needs and possesses the capability for multiple independent power supplies and high-current centralized power supply is a pressing technical problem that needs to be solved. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an expandable switch output terminal structure for low-voltage generator vehicles, which solves the shortcomings of the prior art in terms of poor flexibility of generator vehicle output terminals and difficulty in adapting to diverse power supply needs. At the same time, it also solves the safety hazards and low efficiency of traditional crimping methods.

[0006] To achieve the above objectives, the present invention employs a low-voltage generator vehicle expandable switch output terminal structure, comprising: Main support frame; The sliding track is fixedly connected to the cavity inside the main support frame. A sliding seat, which is slidably connected to the aforementioned sliding track; At least one outgoing line switch module is provided, each of which is mounted on the sliding base. Each outgoing line switch module includes a circuit breaker and outgoing terminals. The sliding track has a first working state and a second working state; In the first working state, all the sliding seats are locked on the sliding rail, so that each of the outgoing switch modules is arranged side by side and electrically isolated from each other, and each outgoing switch module independently provides power to one load. In the second working state, the sliding seat is unlocked and its position is adjusted so that some or all of the outgoing switch modules are adjacent, and the outgoing terminals of the adjacent outgoing switch modules are electrically connected in parallel through a detachable connector, so that multiple low-current outputs are combined into one or more high-current outputs.

[0007] As a further optimization of the above solution, a protective cover is provided on the outside of the main support, and an observation window is opened on the protective cover.

[0008] As a further optimization of the above solution, a locking mechanism is installed on the sliding seat to lock the sliding seat onto the sliding track.

[0009] As a further optimization of the above solution, the locking mechanism includes a locking pin located on the sliding seat and a locking hole located on the sliding track, wherein the locking pin can be inserted into the locking hole to fix the sliding seat.

[0010] As a further optimization of the above solution, a detachable connector is provided between the outgoing switch modules, which enables the outgoing switch modules to be connected in parallel in the second working state.

[0011] As a further optimization of the above solution, the connector is a copper busbar or a flexible connecting cable.

[0012] As a further optimization of the above solution, the outgoing terminal includes a terminal housing, a wire inlet bushing, a wire bundle cone, a preload spring, and a clamping bolt. The terminal housing is mounted on the outgoing switch module and has an inlet hole for wire entry. The wire inlet bushing is disposed inside the terminal housing and connected to the inlet hole. The wire bundle cone is disposed inside the wire inlet bushing and is cone-shaped to separate the incoming wires. The preload spring is disposed behind the wire bundle cone and applies a thrust to the wire bundle cone. The clamping bolt is disposed at the tail of the wire bundle cone and applies a continuous thrust to the wire bundle cone to keep it in close contact with the wires.

[0013] As a further optimization of the above solution, the inlet channel inside the terminal housing is configured as a stepped shape.

[0014] As a further optimization of the above solution, the outgoing terminal also includes a cold-shrink insulating sleeve.

[0015] A method for applying an expandable switch output terminal structure for a low-voltage generator vehicle, employing the structure described in the above technical solution, and configuring the operating state of the output switch module according to user requirements, includes the following steps: S1: Preparation: Connect the generator car's main power supply to the input power interface, check the status of each outgoing switch module, and ensure that the circuit breaker is in the open state. S2: Select the working state. If multiple independent power supplies are required, move all the sliding seats along the sliding rail to a position where they are side by side and electrically isolated from each other, lock the sliding seats, and connect the cables of different loads to the output terminals of each output switch module respectively. If a large current centralized power supply is required, unlock the sliding seats that need to be connected in parallel, move the sliding seats along the sliding track and make the sliding seats adjacent, use detachable connectors to connect the outgoing terminals of adjacent outgoing switch modules that need to be connected in parallel, lock the sliding seats, and connect the high-power load cables to the outgoing terminal group after parallel connection. S3: End power supply and recovery, disconnect the load cable, remove the connector, unlock and reset the sliding seat, and disconnect the main power supply and input power interface of the generator car.

[0016] The expandable switch output terminal structure for low-voltage generator vehicles of the present invention has the following beneficial effects: 1. The expandable switch output terminal structure for low-voltage generator vehicles of the present invention has high flexibility and adaptability. The expandable switch output terminal structure can flexibly switch between two modes of "multiple independent power supply" and "high current centralized power supply" according to actual power supply needs, so that the generator vehicle can efficiently supply power to multiple low-power devices, while also providing sufficient current to a single high-power device, greatly improving the applicability and utilization efficiency of the generator vehicle.

[0017] 2. The expandable switch output terminal structure for low-voltage generator vehicles of the present invention, through the design of a sliding seat and locking mechanism, makes the configuration and adjustment of the module simple and quick. In high-current mode, multiple parallel connections can be achieved through detachable connectors, avoiding complex external wiring and additional parallel equipment, and reducing the difficulty and time of on-site operation; 3. The expandable switch output terminal structure for low-voltage generator vehicles of the present invention is equipped with a circuit breaker for each output switch module, providing overload, short-circuit, and leakage protection functions to ensure power supply safety. The protective cover and observation window design of the main support provide dustproof, waterproof, and electric shock protection, and facilitate monitoring of the working status. At the same time, the output terminals avoid the safety hazards caused by poor contact, overheating, wire burning, insulation damage, and broken wire strands due to problems such as weak crimping, wear, and vibration in traditional crimping methods, greatly improving the reliability of the connection; 4. The expandable switch output terminal structure for low-voltage generator vehicles of the present invention features a modular design for the output switch module, making fault location and replacement more convenient. Furthermore, by increasing or decreasing the number of sliding seats and output switch modules, the power supply capacity of the system can be easily expanded or adjusted, exhibiting good maintainability and scalability.

[0018] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and the embodiments of the present invention include many changes, modifications and equivalents. Attached Figure Description

[0019] Figure 1 A schematic diagram of the expandable switch output terminal structure for low-voltage generator vehicles; Figure 2 This is a schematic diagram of the main support structure in this invention; Figure 3 This is a schematic diagram of the outgoing switch module in the first working state of the present invention; Figure 4 This is a schematic diagram of the outgoing switch module in the second working state of the present invention; Figure 5 This is a schematic diagram of the outgoing line switch module in this invention; Figure 6 This is a schematic diagram of the structure of the outgoing terminal in this invention; Figure 7 This is a schematic diagram of the locking mechanism in this invention; Figure 8 This is a schematic diagram of the operating handle in this invention.

[0020] In the diagram: 1. Main support; 11. Receiving cavity; 2. Sliding rail; 21. Guide groove; 22. Conical positioning hole; 3. Sliding seat; 4. Outgoing switch module; 41. Circuit breaker; 42. Outgoing terminal; 421. Terminal housing; 4211. Inlet hole; 422. Wire inlet bushing; 423. Wire bundle cone; 424. Preload spring; 425. Clamping bolt; 5. Protective cover; 51. Observation window; 6. Locking mechanism; 61. Floating pin seat; 62. Positioning probe; 63. Brake shoe; 64. Wedge-shaped push block; 65. Operating handle; 66. Connecting rod; 67. Drive shaft; 7. Connecting piece; 8. Cold shrink insulation sleeve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention.

[0022] It should be noted that when an element is referred to as "set on" or "provided with" another element, it can be directly on the other element or there may be an intermediate element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. "Fixed connection" means fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this document. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in the specification herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Please refer to the instruction manual appendix. Figure 1-8 The present invention provides a first embodiment of an expandable switch output terminal structure for a low-voltage generator vehicle. In the first embodiment, the present invention provides an expandable switch output terminal structure for a low-voltage generator vehicle, including a main support 1, a sliding rail 2, a sliding seat 3, and an output switch module 4.

[0024] The main support frame 1 serves as the foundation of the entire structure. It integrates an input power interface for connecting to the main power supply of the generator vehicle. The input power interface is connected to the incoming terminals of the circuit breakers 41 of all outgoing switch modules 4 via the main busbar, ensuring that power can be evenly distributed to each outgoing module.

[0025] Furthermore, the main support frame 1 is made of aluminum alloy or high-strength engineering plastic. Aluminum alloy has a good strength-to-weight ratio, corrosion resistance, thermal conductivity, and is easy to process and form, which is conducive to achieving the lightweighting of the generator vehicle.

[0026] The main support 1 is also equipped with a protective cover 5, which has the functions of dustproof, waterproof and electric shock protection. The protective cover 5 has an observation window 51 to facilitate observation of the working status of the outgoing switch module 4.

[0027] Preferably, the protective cover 5 may be made of high-strength transparent polycarbonate or opaque PC / ABS alloy.

[0028] The sliding rail 2 is fixedly connected to the receiving cavity 11 inside the main support 1, for example, by adopting a T-slot structure to provide a stable sliding path. The sliding rail 2 is provided with multiple locking holes for cooperating with the locking mechanism 6 of the sliding seat 3.

[0029] The sliding seat 3 can slide on the sliding track 2. Each sliding seat 3 has a slider at its bottom that mates with a T-slot to ensure smooth and stable sliding. The sliding seat 3 is also provided with a locking mechanism 6. In some embodiments, the locking mechanism 6 includes a locking pin, which can be manually or by means of an operating rod inserted into a locking hole on the sliding track 2 to fix the sliding seat 3 in a specific position.

[0030] Furthermore, in the second working state, the sliding seat 3 is unlocked and its position is adjusted so that some or all of the outgoing switch modules 4 are adjacent, and the outgoing terminals 42 of the adjacent outgoing switch modules 4 are electrically connected in parallel through the detachable connector 7, so that multiple small current outputs are combined into one or more large current outputs; Regarding the locking mechanism 6, in this embodiment, the locking mechanism 6 includes an elastic pre-positioning component, a lateral expansion locking component, and a dead-point toggle drive component to achieve precise positioning and vibration-resistant locking of the sliding seat 3 on the sliding track 2.

[0031] The inner wall of the sliding track 2 is provided with a guide groove 21 in the shape of a dovetail groove or a T-shaped groove. The bottom surface of the guide groove 21 is provided with a plurality of conical positioning holes 22 arranged in an array along the length direction. The elastic pre-positioning component is located at the bottom center of the sliding seat 3, including a floating pin seat 61 and a positioning probe 62 with a conical end. The positioning probe 62 extends downward under the bias of the spring in its natural state, and is used to fall into the conical positioning hole 22 before locking to achieve automatic alignment.

[0032] The lateral expansion locking assembly is symmetrically arranged on both sides of the elastic prepositioning assembly, including two opposing brake shoes 63 and a wedge-shaped pusher 64 located between the two brake shoes; the outer surface of the brake shoes 63 is provided with anti-slip teeth for abutting against the side wall of the guide groove 21; the over-dead-point toggle drive assembly includes an operating handle 65, a connecting rod 66 and a drive shaft 67, the operating handle 65 is hinged to the wedge-shaped pusher 64 through the connecting rod 66; when the operating handle 65 is pressed down, the wedge-shaped pusher 64 moves downward and squeezes the two brake shoes 63 to open to both sides until the hinge point between the connecting rod 66 and the operating handle 65 passes the dead point of force, thus achieving self-locking.

[0033] Specifically, the working principle of the locking mechanism 6 is as follows: During the movement of the sliding seat 3, it is difficult for the operator to visually determine whether the module is precisely aligned with the preset position. The positioning probe 62 designed in this invention has a conical head that matches the conical positioning hole 22 at the bottom of the track. When the module slides close to the predetermined position, under the action of spring force, the positioning probe 62 automatically slides into the center of the conical positioning hole 22. Utilizing the "automatic centering principle of conical surface fit," it ensures that when multiple modules are aligned, the outgoing terminals 42 on each module are on the same horizontal line, providing perfect dimensional tolerance fit for the subsequent installation of the rigid connector 7, and avoiding difficulties in copper busbar installation or forced assembly stress due to hole position deviations.

[0034] The butterfly-type lateral expansion brake. Traditional pin-type locking relies on "point contact" and has poor shear resistance. The lateral expansion locking assembly of this invention employs a "friction expansion principle" similar to that of train brakes. When the wedge-shaped pusher 64 is pressed down, it forces the brake shoes 63 on both sides to open laterally and press against the inner wall of the T-shaped groove of the sliding track 2. By transforming the point of force into a large-area friction surface, and with the locking force perpendicular to the track sidewall and perpendicular to the vehicle's direction of travel, the sliding seat movement caused by the vehicle's acceleration and deceleration inertia is reduced.

[0035] For ease of operation and safety, this invention incorporates the "over-dead-point toggle drive" principle. The operating handle 65, connecting rod 66, and wedge-shaped push block 64 constitute the toggle mechanism. Initially, when the handle is pressed down, the lever arm is relatively long, requiring only a small force from the operator to push the brake shoe 63 into contact with the track. Once the brake shoe 63 contacts the track, the mechanism enters the force-increasing phase; a minimal handle displacement generates a significant lateral compressive force, ensuring a secure lock.

[0036] It should be noted that in this embodiment, the operating handle 65 has a certain counterweight to ensure the movement effect of the operating handle 65.

[0037] When the handle is fully depressed, the hinge center point of the linkage crosses the center line of the drive shaft, i.e., crosses the dead point. At this point, the reaction force from the rail will only press the handle tighter, not cause it to spring back. It can only be unlocked by manually pulling the handle upwards with a specific force. This provides absolute mechanical safety under conditions of severe vibration in the generator car.

[0038] Outgoing switch module 4 is mounted on sliding base 3. Each outgoing switch module 4 includes a circuit breaker 41 and an outgoing terminal 42. The circuit breaker 41 has overload, short circuit and leakage protection functions to ensure power supply safety. The outgoing terminal 42 is a multi-functional terminal block, compatible with different cable specifications, improving versatility.

[0039] The core innovation of this invention lies in its ability to switch between two working states: First operating state (multi-path independent power supply mode): All sliding seats 3 are locked on the sliding rails 2, allowing the outgoing switch modules 4 to be arranged side by side, maintaining a certain distance and electrical isolation between the modules. In this state, each outgoing switch module 4 can independently provide power to one load, achieving multi-path independent power supply. For example, the generator can simultaneously provide power to multiple low-power devices without interference between the lines, greatly improving the flexibility of power supply and adaptability to diverse loads.

[0040] Second operating state (high-current centralized power supply mode): By unlocking the sliding seat 3 and adjusting its position, some or all of the outgoing switch modules 4 are brought close together. At this time, detachable connectors 7 (such as copper busbars or flexible connecting cables) can be used to electrically connect the outgoing terminals 42 of adjacent outgoing switch modules 4 in parallel. Through parallel connection, multiple low-current outputs can be combined into one or more high-current outputs, thereby meeting the power supply needs of a single high-power device. For example, when a large current needs to be provided to a large piece of equipment, two or more outgoing switch modules 4 can be connected in parallel to provide a higher current output capacity, avoiding the need for multiple generator sets or complex external parallel connection schemes, and simplifying on-site operation.

[0041] Please refer to the instruction manual appendix. Figure 1-8 This invention provides a second embodiment of an expandable switch output terminal structure for low-voltage generator vehicles. Based on the structure of the first embodiment described above, this invention provides a simpler fixed output terminal 42 structure. The principle is to use an intermediate component to expand the outer ring component, forming an inverted buckle within the mounting hole to prevent pull-out. The device includes: a terminal housing 421, a wire inlet bushing 422, a wire bundle cone 423, a preload spring 424, and a clamping bolt 425.

[0042] When multiple wires enter the terminal housing 421, the wire bundling cone 423, a pointed conical accessory located at the center of the product, separates the wires in an umbrella-like shape. Simultaneously, the wires and the product are rotated back and forth by hand to evenly distribute the multiple wires. Because the entry channel is stepped, the wires are forced to bend and deform as they pass through. A pre-tensioning spring 424 is installed behind the wire bundling cone 423, which compresses when the wires first enter, increasing the gap between the wire bundling cone 423 and the wire inlet bushing 422 to facilitate wire entry. After all the wires are inside the product, the wire bundling cone 423, under the action of elasticity, presses tightly against the wires, reducing the gap between it and the opening of the inlet hole 4211, and ensuring that the dispersed wires are tightly fitted against the inner wall of the terminal housing 421.

[0043] In some embodiments, the outgoing terminal 42 further includes a cold-shrink insulating sleeve 8.

[0044] At this point, the wire has bent and deformed, wrapping around the middle wire bundle cone 423. When an external force pulls it outward, the wire and the wire bundle cone 423 are together locked at the inlet of the connector to prevent them from coming out. To cope with the tendency of the gap between the wire and the connector to increase due to external vibration, a clamping bolt 425 is provided at the tail of the wire bundle cone 423. It is installed in the tail hole of the terminal housing 421. Its forward thrust can be directly applied to the tail of the wire bundle cone 423, making the wire bundle cone 423 more continuously and tightly attached to the wire, reducing the gap with the wire inlet bushing 422, and achieving the purpose of locking.

[0045] Based on the above embodiments, the present invention also provides an application method for an expandable switch output terminal structure for low-voltage generator vehicles, which adopts the structure described in the first and second embodiments above, and configures the working state of the output switch module 4 according to user requirements.

[0046] Step S1: Preparation. Connect the generator car's main power supply to the input power interface, check the status of each outgoing switch module 4, and ensure that the circuit breaker 41 is in the open state.

[0047] Step S2: Select working status.

[0048] S21: When multiple independent power supplies are required.

[0049] S211: Adjust the sliding blocks 3: Move all the sliding blocks 3 along the sliding rail 2 to a position where they are side by side and electrically isolated from each other.

[0050] S212: Locking Slide 3: Insert the locking pin into the corresponding locking hole to securely lock each slide 3.

[0051] S213: Connecting loads: Connect cables with different loads to the output terminals 42 of each output switch module 4 through a pressure-free self-locking connection device.

[0052] S214: Power supply by closing the circuit breaker 41 of the outgoing switch module 4 that requires power supply, so as to supply power to the corresponding load.

[0053] S22: When a large current centralized power supply is required.

[0054] S221: Unlock and adjust slider 3: Unlock the sliders 3 that need to be connected in parallel, and move them along the sliding track 2 to make them closely adjacent.

[0055] S222: Install connector 7: Use a detachable connector 7 (such as a copper busbar or flexible connecting cable) to connect the outgoing terminals 42 of adjacent outgoing switch modules 4 that need to be connected in parallel.

[0056] S223: Locking slide block 3: Insert the locking pin into the corresponding locking hole to securely lock the adjusted slide block 3.

[0057] S224: Connecting load: Connect the high-power load cable to the parallel outgoing terminal 42 groups through a pressure-free self-locking connection device.

[0058] S225: Power supply: Close the circuit breaker 41 of all outgoing switch modules 4 in the parallel group to supply power to the high-power load.

[0059] Step S3: End power supply and recycle.

[0060] S31: Disconnect load: Disconnect all circuit breakers 41 and disconnect the load cable.

[0061] S32: Remove connector 7: If in the second working state, remove the detachable connector 7.

[0062] S33: Unlock and reset slider 3: Unlock all sliders 3 and push them back to their initial or stored positions.

[0063] S34: Disconnect main power supply: Disconnect the main power supply of the generator car from the input power supply interface.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An expandable switch output terminal structure for low-voltage generator vehicles, characterized in that, include: Main support frame (1); The sliding track (2) is provided in the cavity (11) of the main support (1) and the sliding track (2) is fixedly connected to the cavity (11). The sliding seat (3) is slidably connected to the sliding rail (2) mentioned above; At least one outgoing switch module (4), each of the outgoing switch modules (4) is disposed on the sliding seat (3), and the outgoing switch module (4) includes a circuit breaker (41) and an outgoing terminal (42), wherein, The sliding track (2) has a first working state and a second working state; In the first working state, all the sliding seats (3) are locked on the sliding rail (2), so that each of the outgoing switch modules (4) is arranged side by side and electrically isolated from each other, and each outgoing switch module (4) independently provides power to one load; In the second working state, the sliding seat (3) is unlocked and the position of the sliding seat (3) is adjusted so that some or all of the outgoing switch modules (4) are adjacent, and the outgoing terminals (42) of the adjacent outgoing switch modules (4) are electrically connected in parallel through the detachable connector (7) so that multiple small current outputs are combined into one or more large current outputs.

2. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 1, characterized in that: The main support (1) is provided with a protective cover (5) on the outside, and the protective cover (5) has an observation window (51).

3. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 1, characterized in that: The sliding seat (3) is equipped with a locking mechanism (6) that locks the sliding seat (3) onto the sliding rail (2).

4. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 3, characterized in that: The locking mechanism (6) includes a locking pin located on the sliding seat (3) and a locking hole located on the sliding track (2), wherein the locking pin can be inserted into the locking hole to fix the sliding seat (3).

5. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 4, characterized in that: A detachable connector (7) is provided between the outgoing switch modules, which enables the outgoing switch modules to be connected in parallel in the second working state.

6. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 5, characterized in that: The connector (7) is a copper busbar or a flexible connecting cable.

7. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 6, characterized in that: The outgoing terminal (42) includes a terminal housing (421), a wire inlet bushing (422), a wire bundle cone (423), a preload spring (424), and a clamping bolt (425). The terminal housing (421) is mounted on the outgoing switch module (4) and has an inlet hole (4211) for wire entry. The wire inlet bushing (422) is disposed inside the terminal housing (421) and the wire inlet bushing (422) is adjacent to the inlet hole (4211). 1) Connected, the wire bundle cone (423) is disposed inside the wire inlet bushing (422), the wire bundle cone (423) is cone-shaped to separate the incoming wires, the preload spring (424) is disposed behind the wire bundle cone (423) and the preload spring (424) applies a thrust to the wire bundle cone (423), and the clamping bolt (425) is disposed at the tail of the wire bundle cone (423) and the clamping bolt applies a continuous thrust to the wire bundle cone (423) to keep it close to the wires.

8. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 7, characterized in that: The inlet channel inside the terminal housing (421) is stepped.

9. The expandable switch output terminal structure for low-voltage generator vehicles according to claim 8, characterized in that: The outgoing terminal (42) also includes a cold-shrink insulating sleeve (8).

10. An application method for an expandable switch output terminal structure for a low-voltage generator vehicle, characterized in that: Using the structure described in any one of claims 1-9, the working state of the outgoing line switch module (4) is configured according to user requirements, including the following steps: S1: Preparation work, connect the main power supply of the generator car to the input power interface, check the status of each outgoing switch module (4), and ensure that the circuit breaker (41) is in the open state; S2: Select the working state. If multiple independent power supplies are required, move all the sliding seats (3) along the sliding rail (2) to a position where they are side by side and electrically isolated from each other, lock the sliding seats (3), and connect the cables of different loads to the output terminals (42) of each output switch module (4). If a large current is required for centralized power supply, unlock the sliding seat (3) that needs to be connected in parallel, move the sliding seat (3) along the sliding track (2) and make the sliding seats (3) adjacent, use the detachable connector (7) to connect the output terminals (42) of the adjacent output switch modules (4) that need to be connected in parallel, lock the sliding seat (3), and connect the high power load cable to the output terminal (42) group after parallel connection; S3: End power supply and recycling, disconnect the load cable, remove the connector (7), unlock and reset the sliding seat (3), and disconnect the connection between the generator car's main power supply and the input power supply interface.

Images