Low-voltage power-off structure with branching capability

Abstract

The utility model discloses a low -voltage power -off structure with the ability of branch, relates to dangerous goods transport vehicle low -voltage circuit safety field. This low -voltage power -off structure with the ability of branch, including battery, positive pole safety box and power -off relay, positive pole safety box and power -off relay install respectively in the top and side of battery, the first copper row, second copper row, third copper row and stake head terminal are built -in in positive pole safety box. This low -voltage power -off structure with the ability of branch, through the direct installation of positive pole safety box in the top of battery, and the integration of first copper row, second copper row and third copper row in positive pole safety box, completely solve the problem that pick -up truck cabin compact car model cannot reserve independent installation space for positive pole safety box, avoid the circuit layout confusion of prior art due to space limitation, and the adaptability of vehicle model modification is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage circuit safety in dangerous goods transport vehicles, and in particular to a low-voltage power-off structure with branching capability. Background Technology

[0002] Currently, most hazardous materials transport vehicles are upgraded and developed based on basic models (such as pickup trucks) rather than developing dedicated models. The core purpose is to reduce the development cost of the vehicle and the manufacturing cost of the whole vehicle.

[0003] However, the engine compartment space of pickup trucks has significant limitations—unlike light trucks and other vehicles with ample space that can have the positive fuse box installed independently, pickup trucks cannot reserve independent installation space for the positive fuse box in their engine compartment.

[0004] In existing technologies, to achieve circuit connection, the positive terminal is typically fixed directly to the copper busbar of the positive fuse box, and then the positive fuse box is fixed to the positive terminal of the battery via the terminal. This design not only results in poor relative positional stability between the positive fuse box and the terminal, but also easily leads to a messy power distribution link layout, reducing the reliability of power failure control response. At the same time, due to space and fixing methods, the existing structure is difficult to adapt to the modification needs of different basic vehicle models, lacking versatility, and ultimately posing a potential risk to the driving and parking safety of hazardous materials transportation. Utility Model Content

[0005] The purpose of this invention is to provide a low-voltage power-off structure with branching capability to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a low-voltage power-off structure with branching capability, comprising a battery, a positive fuse box, and a power-off relay, wherein the positive fuse box and the power-off relay are respectively installed on the top and side of the battery, and the positive fuse box contains a first copper busbar, a second copper busbar, a third copper busbar, and terminal blocks. The battery has a positive terminal, and the terminal is fixed to the positive terminal. One end of the first copper busbar is electrically connected to the terminal block, and the other end of the first copper busbar is electrically connected to one end of the external wiring harness, and the other end of the external wiring harness is electrically connected to the input terminal of the power-off relay. One end of the second copper busbar is electrically connected to the output terminal of the power-off relay via an external wiring harness; The third copper busbar is connected to the other end of the second copper busbar, and the third copper busbar is used to realize the power distribution of the whole vehicle.

[0007] Preferably, one end of the first copper busbar is connected to the pile head terminal by a first bolt.

[0008] Preferably, the other end of the first copper busbar is connected to a second bolt, and the second bolt is detachably connected to one end of the external wiring harness.

[0009] Preferably, the two ends of the second copper busbar are respectively connected to a third bolt and a fourth bolt, and the output terminal of the power-off relay is detachably connected to the third bolt through an external wiring harness.

[0010] Preferably, the third copper busbar is detachably connected to the second copper busbar by a fourth bolt.

[0011] Preferably, a power-off switch is connected to the external wiring harness between the output terminal of the power-off relay and the third bolt.

[0012] Preferably, the positive electrode fuse box is provided with a transparent protective cover on its outer side.

[0013] Preferably, a fuse box is also provided on the back of the battery.

[0014] The technical effects and advantages of this utility model are as follows: This structure directly installs the positive fuse box on the top of the battery and integrates the first copper busbar, the second copper busbar and the third copper busbar inside the positive fuse box. This completely solves the problem that compact vehicles such as pickup trucks cannot reserve independent installation space for the positive fuse box, avoids the chaotic circuit layout caused by space limitations in the prior art, and greatly improves the adaptability of vehicle modification. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positive electrode fuse box of this utility model.

[0016] In the diagram: 1. Battery; 2. Positive fuse box; 21. First copper busbar; 211. First bolt; 212. Second bolt; 22. Second copper busbar; 221. Third bolt; 222. Fourth bolt; 23. Third copper busbar; 24. Terminal block; 3. Engine compartment fuse box; 4. Power-off relay. Detailed Implementation

[0017] 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.

[0018] This invention provides, for example Figures 1-2The low-voltage power-off structure with splitting capability shown includes a battery 1, a positive fuse box 2 and a power-off relay 4. The positive fuse box 2 and the power-off relay 4 are respectively installed on the top and side of the battery 1. The positive fuse box 2 has a first copper busbar 21, a second copper busbar 22, a third copper busbar 23 and a terminal 24 inside. The battery 1 has a positive terminal, and the terminal 24 is fixed to the positive terminal. One end of the first copper busbar 21 is electrically connected to the terminal 24, and the other end of the first copper busbar 21 is electrically connected to one end of the external wiring harness, and the other end of the external wiring harness is electrically connected to the input terminal of the power-off relay 4. One end of the second copper busbar 22 is electrically connected to the output terminal of the power-off relay 4 via an external wiring harness. The third copper busbar 23 is connected to the other end of the second copper busbar 22, and the third copper busbar 23 is used to realize the power distribution of the whole vehicle.

[0019] This structure directly installs the positive fuse box 2 on top of the battery 1, and integrates the first copper busbar 21, the second copper busbar 22 and the third copper busbar 23 inside the positive fuse box 2. This completely solves the problem that compact vehicles such as pickup trucks cannot reserve independent installation space for the positive fuse box 2, avoids the chaotic circuit layout caused by space limitations in the existing technology, and greatly improves the adaptability of vehicle modification.

[0020] Furthermore, one end of the first copper busbar 21 is connected to the pile head terminal 24 by a first bolt 211.

[0021] Furthermore, the other end of the first copper busbar 21 is connected to a second bolt 212, and the second bolt 212 is detachably connected to one end of the external wiring harness.

[0022] Furthermore, the two ends of the second copper busbar 22 are respectively connected to the third bolt 221 and the fourth bolt 222, and the output end of the power-off relay 4 is detachably connected to the third bolt 221 through an external wiring harness.

[0023] Furthermore, the third copper busbar 23 is detachably connected to the second copper busbar 22 via the fourth bolt 222.

[0024] The first copper busbar 21 is fixed to the terminal 24 by the first bolt 211 and connected to the external wiring harness by the second bolt 212. The second copper busbar 22 is connected to the external wiring harness of the output terminal of the power-off relay 4 by the third bolt 221 and connected to the third copper busbar 23 by the fourth bolt 222. The bolt connection method not only ensures the reliability of the electrical connection between the components, but also realizes the pre-fixation of the positive fuse box 2 and the terminal 24, ensuring the stability of their relative positions. At the same time, this design improves the positioning accuracy during the final assembly of the main engine plant and reduces the assembly difficulty.

[0025] Furthermore, a power-off switch is connected to the external wiring harness between the output terminal of the power-off relay 4 and the third bolt 221.

[0026] Furthermore, a transparent protective cover is provided on the outside of the positive electrode fuse box 2.

[0027] Furthermore, a compartment fuse box 3 is also installed on the back of the battery 1.

[0028] When the vehicle is in motion, the power-off switch associated with the control power-off relay 4 is closed, and the circuit forms a complete power supply link: The current output from the positive terminal of battery 1 is first transmitted to the terminal 24 fixed to the positive terminal; Current flows through the first bolt 211 into the first copper busbar 21 inside the positive fuse box 2; The current flows along the first copper busbar 21, is connected to the external wiring harness through the second bolt 212, and is transmitted to the input terminal of the power-off relay 4; When the power-off relay 4 is closed, it becomes internally conductive, and current flows out from its output terminal, through the external wiring harness, and into the second copper busbar 22 via the third bolt 221. The current flows along the second copper busbar 22 and is transmitted to the third copper busbar 23 through the fourth bolt 222; Finally, the third copper busbar 23 completes the power distribution of all electrical components in the vehicle, ensuring normal power supply to the vehicle and ensuring stable driving.

[0029] When the vehicle is parked and the safety of hazardous materials needs to be ensured, and it is necessary to disconnect the vehicle's power supply, operate the power disconnect switch to disconnect it, thus breaking the circuit link: After the power-off switch is turned off, the internal link of the power-off relay 4 is also cut off. The current output from the positive terminal of battery 1 can only be transmitted to the input terminal of power-off relay 4 through the terminal 24, the first copper busbar 21, and the external wiring harness, and cannot flow to the second copper busbar 22 through the output terminal of power-off relay 4. Since the third copper busbar 23 is connected to the second copper busbar 22 via the fourth bolt 222, the third copper busbar 23 is in a de-energized state when there is no current input to the second copper busbar 22. The third copper busbar 23 stops distributing power to the vehicle's electrical components, achieving a complete power outage for the entire vehicle and avoiding safety risks caused by circuit faults.

[0030] This structure directly installs the positive fuse box 2 on top of the battery 1, and integrates the first copper busbar 21, the second copper busbar 22 and the third copper busbar 23 inside the positive fuse box 2. This completely solves the problem that compact vehicles such as pickup trucks cannot reserve independent installation space for the positive fuse box 2, avoids the chaotic circuit layout caused by space limitations in the existing technology, and greatly improves the adaptability of vehicle modification.

[0031] The first copper busbar 21 is fixed to the terminal 24 by the first bolt 211 and connected to the external wiring harness by the second bolt 212. The second copper busbar 22 is connected to the external wiring harness of the output terminal of the power-off relay 4 by the third bolt 221 and connected to the third copper busbar 23 by the fourth bolt 222. The bolt connection method not only ensures the reliability of the electrical connection between the components, but also realizes the pre-fixation of the positive fuse box 2 and the terminal 24, ensuring the stability of their relative positions. At the same time, this design improves the positioning accuracy during the final assembly of the main engine plant and reduces the assembly difficulty.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-voltage power-off structure with branching capability, comprising a battery (1), a positive fuse box (2), and a power-off relay (4), wherein the positive fuse box (2) and the power-off relay (4) are respectively installed on the top and side of the battery (1), characterized in that, The positive electrode fuse box (2) contains a first copper busbar (21), a second copper busbar (22), a third copper busbar (23), and a terminal block (24). The battery (1) has a positive terminal, and the terminal (24) of the terminal is fixed to the positive terminal; One end of the first copper busbar (21) is electrically connected to the terminal block (24), and the other end of the first copper busbar (21) is electrically connected to one end of the external wiring harness, and the other end of the external wiring harness is electrically connected to the input terminal of the power-off relay (4). One end of the second copper busbar (22) is electrically connected to the output terminal of the power-off relay (4) via an external wiring harness; The third copper busbar (23) is connected to the other end of the second copper busbar (22), and the third copper busbar (23) is used to realize the power distribution of the whole vehicle.

2. The low-voltage power-off structure with branching capability according to claim 1, characterized in that, One end of the first copper busbar (21) is connected to the pile head terminal (24) by a first bolt (211).

3. A low-voltage power-off structure with branching capability according to claim 1, characterized in that, The other end of the first copper busbar (21) is connected to a second bolt (212), and the second bolt (212) is detachably connected to one end of the external wiring harness.

4. A low-voltage power-off structure with branching capability according to claim 1, characterized in that, The second copper busbar (22) is connected to a third bolt (221) and a fourth bolt (222) at its two ends respectively. The output end of the power-off relay (4) is detachably connected to the third bolt (221) through an external wiring harness.

5. A low-voltage power-off structure with branching capability according to claim 4, characterized in that, The third copper busbar (23) is detachably connected to the second copper busbar (22) by a fourth bolt (222).

6. A low-voltage power-off structure with branching capability according to claim 4, characterized in that, The output terminal of the power-off relay (4) is connected to the external wiring harness between the third bolt (221) and the power-off switch.

7. A low-voltage power-off structure with branching capability according to claim 1, characterized in that, The positive electrode fuse box (2) is provided with a transparent protective cover on its outer side.

8. A low-voltage power-off structure with branching capability according to claim 1, characterized in that, The battery (1) is also provided with a cabin safety box (3) on the back.

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