CN220549020U - Circuit system for vehicle and vehicle - Google Patents

Abstract

The utility model discloses a circuit system for a vehicle and the vehicle. The circuitry for a vehicle includes: the first fuse box, the second fuse box, the third fuse box, first conductor and second conductor, first fuse box and second fuse box interval set up, and the third fuse box is located between first fuse box and the second fuse box, and first conductor intercommunication first fuse box and second fuse box, second conductor intercommunication third fuse box and first conductor, first fuse box are used for supplying power to first conductor. According to the circuit system for the vehicle, the first conductor is communicated with the first fuse box and the second fuse box, and the third fuse box can take electricity to the first conductor through the second conductor, so that the length of the second conductor is reduced, and the cost of the circuit system is reduced.

Description

Circuit system for vehicle and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a circuit system for a vehicle and the vehicle.

Background

With the rapid development of automobile electronization and informatization, the requirements of people on automobile electronic and electric functions are continuously improved, and in order to cope with more and more electric functions, a circuit system of the whole automobile is provided with a plurality of safeties.

In the related art, a plurality of fuse boxes of the circuit system are usually arranged in series, but as the number of the fuse boxes increases, the length of conductors connecting the fuse boxes is longer and longer, resulting in higher and higher cost of the circuit system due to different arrangement positions of each fuse box in the whole vehicle.

Disclosure of Invention

The present utility model aims to solve, at least to some extent, one of the above technical problems in the prior art. Therefore, the utility model provides the circuit system for the vehicle, which can reduce the cost of the circuit system.

The utility model further provides a vehicle with the circuit system.

According to an embodiment of the utility model, a circuit system for a vehicle includes: the first safe box and the second safe box are arranged at intervals; a first conductor communicating the first fuse box and the second fuse box; the third safe box is arranged between the first safe box and the second safe box; and the second conductor is communicated with the third fuse box and the first conductor, and the first fuse box is used for supplying power to the first conductor.

According to the circuit system for the vehicle, the first conductor is communicated with the first fuse box and the second fuse box, and the third fuse box can take electricity to the first conductor through the second conductor, so that the length of the second conductor is reduced, and the cost of the circuit system is reduced.

According to some embodiments of the utility model, the first conductor comprises an aluminum row and the second conductor comprises a copper wire connected to the aluminum row.

Further, the aluminum bars are connected with the copper wires through ultrasonic welding.

According to some embodiments of the utility model, the circuit system for a vehicle further comprises a heat shrink tube sleeved at the connection of the aluminum row and the copper wire.

Further, the heat shrinkage tube is configured as a three-way tube, the heat shrinkage tube is provided with a first opening, a second opening and a third opening, the aluminum row penetrates through the first opening and the second opening, and the copper wire penetrates through the third opening.

Further, the current-carrying capacity of the copper wire is the same as that of the aluminum busbar.

Further, the first conductor further comprises a first round wire and a second round wire, the first round wire is connected to one ends of the first fuse box and the aluminum row, and the second round wire is connected to the other ends of the second fuse box and the aluminum row.

According to some embodiments of the utility model, the first fuse box is provided in a trunk of the vehicle, the second fuse box is provided in an engine compartment of the vehicle, and the third fuse box is provided in a passenger compartment of the vehicle.

According to some embodiments of the utility model, the first fuse box is a BFB, the second fuse box is an MDB, and the third fuse box is a CJB.

According to another aspect of the utility model, a vehicle includes the above-described circuitry for a vehicle.

According to the vehicle provided by the embodiment of the utility model, the first conductor of the circuit system is communicated with the first fuse box and the second fuse box, and the third fuse box can take electricity to the first conductor through the second conductor, so that the length of the second conductor is reduced, the cost of the circuit system is reduced, and the cost of the vehicle is further reduced.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic diagram of circuitry according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of an aluminum row and copper wire connection in accordance with an embodiment of the present utility model;

fig. 3 is a schematic view of a heat shrink tube according to an embodiment of the present utility model.

Reference numerals:

the first fuse box 1, the second fuse box 2, the third fuse box 3, the first conductor 4, the aluminum row 41, the first round wire 42, the second round wire 43, the second conductor 5, the copper wire 51, the heat shrinkage tube 6, the first tube 61, the first opening 611, the second opening 612, the second tube 62, the third opening 621, the rubber sheath 7, and the circuit system 10.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the azimuth or positional relationship indicated by the terms "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following describes in detail a circuit system 10 for a vehicle and a vehicle according to an embodiment of the utility model in connection with fig. 1-3.

Referring to fig. 1, a circuit system 10 for a vehicle includes: the first fuse box 1, the second fuse box 2, the third fuse box 3, the first conductor 4 and the second conductor 5, wherein the first fuse box 1 and the second fuse box 2 are arranged at intervals, the third fuse box 3 is arranged between the first fuse box 1 and the second fuse box 2, the first conductor 4 is communicated with the first fuse box 1 and the second fuse box 2, the second conductor 5 is communicated with the third fuse box 3 and the first conductor 4, the first fuse box 1 is used for supplying power to the first conductor 4, that is, the first fuse box 1 can supply power to the second fuse box 2 through the first conductor 4, and the third fuse box 3 arranged between the first fuse box 1 and the second fuse box 2 can take electricity from the first conductor 4 through the second conductor 5, so that the length of the second conductor 5 is reduced, and the process switching between conductors in the circuit system 10 is reduced.

It can be appreciated that, because the first fuse box 1 and the second fuse box 2 are arranged at intervals, the first fuse box 1 needs to supply power to the second fuse box 2 through the first conductor 4, and the third fuse box 3 located between the first fuse box 1 and the second fuse box 2 can access power to the first conductor 4 through the second conductor 5, compared with the scheme that the third fuse box 3 is directly connected with the first fuse box 1 or the second fuse box 2 to access power, the length of the second conductor 5 can be reduced, and the switching times on the power access path of the third fuse box 3 can be reduced, so that the stability of the circuit system 10 is improved.

According to the circuit system 10 for the vehicle, the first conductor 4 is communicated with the first fuse box 1 and the second fuse box 2, and the third fuse box 3 can power the first conductor 4 through the second conductor 5, so that the length of the second conductor 5 is reduced, and the cost of the circuit system 10 is reduced.

In some embodiments of the present utility model, referring to fig. 1 and 2, the first conductor 4 includes an aluminum row 41, the second conductor 5 includes a copper wire 51 connected to the aluminum row 41, the aluminum row 41 is low in cost and light in weight, the aluminum row 41 is convenient to bend and has high space utilization, and the aluminum row 41 can be bent to form fit with a sheet metal part of a vehicle body so as to reduce the occupied space of the first conductor 4 in the vehicle. Preferably, the copper wire 51 is a copper round wire so that it can be connected to the terminal of the third fuse box 3.

In some embodiments of the present utility model, referring to fig. 2, the aluminum bar 41 is connected to the copper wire 51 by ultrasonic welding to ensure the reliability of the connection between the aluminum bar 41 and the copper wire 51, and to prevent the aluminum oxide film formed on the aluminum bar 41 from affecting the conduction between the aluminum bar 41 and the copper wire 51 during the welding process.

It will be appreciated that ultrasonic welding is a process in which high-frequency vibration waves are transmitted to the surfaces of the aluminum bar 41 and the copper wire 51, and under the application of pressure, the surfaces of the aluminum bar 41 and the copper wire 51 are rubbed against each other, thereby breaking the aluminum oxide film on the aluminum bar 41 and causing the aluminum bar 41 and the copper wire 51 to form fusion between the molecular layers.

The outer sides of the aluminum row 41 and the copper wire 51 are each provided with an insulating sheath, and the insulating sheath of the aluminum row 41 and the copper wire 51 at the welded portion needs to be removed during welding.

In some embodiments of the present utility model, referring to fig. 3, the circuit system 10 further includes a heat shrink tube 6, where the heat shrink tube 6 is sleeved at the connection between the aluminum row 41 and the copper wire 51, and the heat shrink tube 6 can seal the connection between the aluminum row 41 and the copper wire 51, so that the connection between the aluminum row 41 and the copper wire 51 is isolated from the external environment, electrochemical corrosion at the connection between the aluminum row 41 and the copper wire 51 is avoided, and electrical performance and mechanical performance of the connection between the aluminum row 41 and the copper wire 51 are ensured, thereby being beneficial to improving the service life and reliability of the circuit system 10.

It will be appreciated that there is a chemical potential difference between the copper metal in the copper wire 51 and the aluminum metal in the aluminum row 41, and that when the copper wire 51 and the aluminum row 41 are simultaneously in the electrolyte, a primary cell is formed, and an electrochemical reaction occurs, and the aluminum atoms in the aluminum row 41 at a low potential will leave the lattice and lose electrons, thereby forming hydrated ions, and the aluminum row 41 in this environment will be gradually depleted. If the connection between the aluminum busbar 41 and the copper wire 51 is not sealed, an ideal electrolyte environment is formed when the humidity in the air is high or when the copper wire 41 contains salinized impurities, a galvanic cell using aluminum as a negative electrode and copper as a positive electrode is formed at a portion where the copper wire 51 and the aluminum busbar 41 are directly contacted, and electrochemical corrosion is further formed, so that the electrical performance and mechanical performance of the connection between the copper wire 51 and the aluminum busbar 41 are degraded.

In some embodiments of the present utility model, referring to fig. 3, the heat shrink tube 6 is configured as a three-way tube, the heat shrink tube 6 has a first opening 611, a second opening 612 and a third opening 621, the aluminum row 41 is perforated with the first opening 611 and the second opening 612, and the copper wire 51 is perforated with the third opening 621, so that the sealing effect of the heat shrink tube 6 on the connection part of the aluminum row 41 and the copper wire 51 can be ensured.

Referring to fig. 3, the heat shrink tubing 6 includes a first tube body 61 and a second tube body 62, both ends of the first tube body 61 have opposite first and second openings 611 and 612, one end of the second tube body 62 communicates with a sidewall of the first tube body 61, the other end of the second tube body 62 forms a third opening 621, the third opening 621 is located radially outside the first and second openings 611 and 612, and at least one of the first and second openings 611 and 612 may pass through the aluminum row 41 and the copper wire 51 simultaneously before heating the heat shrink tubing 6.

Referring to fig. 2 and 3, before the aluminum row 41 and the copper wire 51 are connected, the aluminum row 41 may pass through the first opening 611 and the second opening 612 of the heat shrink tube 6, after the heat shrink tube 6 is moved to the left side of the welding position, one end of the copper wire 51 is inserted into the heat shrink tube 6 through the third opening 621 and protrudes from the second opening 612, after the aluminum row 41 and the copper wire 51 are ultrasonically welded, the heat shrink tube 6 may be moved to the welding position, and the first tube 61 is sleeved outside the aluminum row 41, the second tube 62 is sleeved outside the copper wire 51, the welding point is positioned in the heat shrink tube 6 between the first opening 611, the second opening 612 and the third opening 621, then the heat shrink tube 6 is baked, the heat shrink tube 6 is shrunk inwards after being heated, and simultaneously the sealant on the inner wall of the heat shrink tube 6 is heated, and the sealant may overflow to the end surface of the heat shrink tube 6, which is in contact with the aluminum row 41 and the copper wire 51, namely, the first opening 611, the second opening 612 and the third opening 621, the sealing effect is achieved after cooling, and electrochemical corrosion of the aluminum row 41 and the copper wire 51 can be prevented.

In some embodiments of the present utility model, the current-carrying capacity of the copper wire 51 is the same as that of the aluminum busbar 41, that is, the aluminum busbar 41 and the copper wire 51 can be continuously carried without causing the stable temperature thereof to exceed the maximum current of the specified value to be the same, and the cross-sectional area of the copper wire 51 can be adjusted to adapt the current-carrying capacity of the copper wire 51 and the aluminum busbar 41, so that the copper wire 51 and the aluminum busbar 41 can share the first fuse provided for the aluminum busbar 41 by the first fuse box 1, thereby being beneficial to reducing the cost of the circuit system 10 and ensuring the safety of the circuit system 10.

For example, the aluminum row 41 has a specification of 60mm2, the copper wire 51 has a specification of 35mm2, and the first fuse box 1 is provided with a first fuse connected in series with the first conductor 4, and the rated current of the first fuse is 400A.

In some embodiments of the present utility model, referring to fig. 1, the first conductor 4 further includes a first round wire 42 and a second round wire 43, the first round wire 42 is connected to one ends of the first fuse box 1 and the aluminum row 41, the second round wire 43 is connected to the other ends of the second fuse box 2 and the aluminum row 41, the first round wire 42 is convenient to connect with a terminal of the first fuse box 1, the second round wire 43 is convenient to connect with a terminal of the second fuse box 2, and reliability of the circuit system 10 is ensured.

Preferably, the first round wire 42 and the second round wire 43 are each an aluminum material member to reduce the weight and cost of the first round wire 42 and the second round wire 43.

In some embodiments of the utility model, the first fuse box 1 is provided in a trunk of the vehicle, the second fuse box 2 is provided in an engine compartment of the vehicle, the third fuse box 3 is provided in a passenger compartment of the vehicle, the first fuse box 1 may be powered by a 12V battery at the trunk, the second fuse box 2 may be connected to electrical devices in the engine compartment, and the third fuse box 3 may be connected to electrical devices in the passenger compartment to facilitate the placement of the circuit system 10.

It should be noted that, because the distance between the first fuse box 1 and the second fuse box 2 is far, the first conductor 4 needs to be routed in the passenger cabin and the engine cabin, in order to reduce the cost and the arrangement difficulty of the first conductor 4, the first conductor 4 may be an aluminum material piece, the aluminum row 41 of the first conductor 4 is convenient to bend, the aluminum row 41 may be bent to follow the floor of the vehicle body so as to improve the utilization ratio of the space in the vehicle, the first conductor 4 is provided with the rubber sheath 7 at the position of the passing front wall plate, and the rubber sheath 7 may seal the first conductor 4 at the position of the passing front wall plate so as to isolate the noise and the water vapor of the engine cabin.

In some embodiments of the utility model, the third fuse box 3 is connected to the first conductor 4 by the second conductor 5, the connection point of the second conductor 5 to the first conductor 4 may be 875mm from the rubber sheath 7, the second conductor 5 extends to the third fuse box 3 close to the inner side of the front floor and the front wall side panel, and the length of the second conductor 5 is 330mm.

In the same vehicle model, if the third fuse box 3 is powered to the second fuse box 2, the length of the conductor connecting the third fuse box 3 and the second fuse box 2 needs to be at least 2000mm, and the second fuse box 2 needs to be provided with a fuse connected in series with the conductor.

Thus, according to the circuit system 10 of the embodiment of the utility model, the length of the second conductor 5 can be shortened, and the number of fuses used can be reduced, thereby being beneficial to reducing the cost of the circuit system 10.

In some embodiments of the present utility model, the first FUSE 1 is a BFB (BATTERY FUSE BOX), the second FUSE 2 is an MDB (MAIN DISTRIBUTION BOX, main FUSE BOX), and the third FUSE 3 is a CJB (CENTRAL JUNCTION BOX, center FUSE BOX), wherein the BFB may be connected to a 12V BATTERY and powered by the 12V BATTERY, the MDB may be connected to a wash pump, a headlight, a fuel injector, a carbon tank solenoid valve, etc. in an engine compartment, and the CJB may be connected to an air conditioner, a center screen, a dome lamp, a speaker, etc.

A vehicle according to another embodiment of the utility model, including the above embodiment of the electrical circuit system 10 for a vehicle, wherein the vehicle may be a PHEV (Plug-in hybrid electric vehicle, plug-in hybrid vehicle) or HEV (Hybrid Electric Vehicle ).

According to the vehicle of the embodiment of the utility model, the first conductor 4 of the circuit system 10 is communicated with the first fuse box 1 and the second fuse box 2, and the third fuse box 3 can take electricity to the first conductor 4 through the second conductor 5, so that the length of the second conductor 5 is reduced, the cost of the circuit system 10 is reduced, and the cost of the vehicle is further reduced.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A circuit system for a vehicle, comprising:

the first safe box and the second safe box are arranged at intervals;

a first conductor communicating the first fuse box and the second fuse box;

the third safe box is arranged between the first safe box and the second safe box;

and the second conductor is communicated with the third fuse box and the first conductor, and the first fuse box is used for supplying power to the first conductor.

2. The electrical circuit system for a vehicle of claim 1, wherein the first conductor comprises an aluminum row and the second conductor comprises a copper wire connected to the aluminum row.

3. The electrical circuit system for a vehicle of claim 2, wherein the aluminum row is connected to the copper wire by ultrasonic welding.

4. A circuit system for a vehicle according to claim 2 or 3, further comprising a heat shrink tube, the heat shrink tube being sleeved at the junction of the aluminum row and the copper wire.

5. The electrical circuit system for a vehicle according to claim 4, wherein the heat shrink tube is configured as a tee having a first opening, a second opening, and a third opening, the aluminum row passing through the first opening and the second opening, the copper wire passing through the third opening.

6. The electrical circuit system for a vehicle of claim 2, wherein the copper wire is the same current carrying capacity as the aluminum row.

7. The electrical circuit system for a vehicle of claim 2, wherein the first conductor further comprises a first round wire connected to one end of the first fuse box and the aluminum row and a second round wire connected to the other end of the second fuse box and the aluminum row.

8. The electrical circuit system for a vehicle according to claim 1, wherein the first fuse box is provided to a trunk of the vehicle, the second fuse box is provided to an engine compartment of the vehicle, and the third fuse box is provided to a passenger compartment of the vehicle.

9. The electrical circuit system for a vehicle of claim 1, wherein the first fuse box is a BFB, the second fuse box is an MDB, and the third fuse box is a CJB.

10. A vehicle characterized by comprising a circuit system for a vehicle according to any of claims 1-9.