CN217215008U

CN217215008U - Protection architecture of C-NCAP head-on collision battery high-voltage plug

Info

Publication number: CN217215008U
Application number: CN202220738993.2U
Authority: CN
Inventors: 孙凌飞; 罗洲; 唐彪; 陆兴旺
Original assignee: Lantu Automobile Technology Co Ltd
Current assignee: Lantu Automobile Technology Co Ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-16
Anticipated expiration: 2032-03-30

Abstract

The utility model relates to a protection structure of a high-voltage plug of a C-NCAP (C-NCAP) front collision battery, which comprises a power battery arranged in a vehicle body, wherein the power battery is fixedly provided with the high-voltage plug; a protection block is fixedly arranged between the vehicle body and the power battery, and two ends of the protection block are respectively matched with the vehicle body and the power battery; the protection block is arranged adjacent to the high-voltage plug, and the size of the protection block in the X direction of the whole vehicle coordinate system is larger than that of the high-voltage plug. The utility model discloses a structure is under the prerequisite that does not change vehicle overall structure and power battery installation position, protects the high-voltage plug on the battery when vehicle frontal collision, damages the high-voltage plug when preventing the collision and causes the serious safety problem of vehicle, has protected vehicle and personnel's safety.

Description

Protection architecture of C-NCAP head-on collision battery high-voltage plug

Technical Field

The utility model relates to an electric automobile technical field, concretely relates to protection architecture of C-NCAP head-on collision battery high voltage plug.

Background

C-NCAP (China New Car evaluation protocol) is the first edition of China New Car evaluation protocol officially released by China automotive research center on 3/2 2006 to promote the healthy development of the China automotive industry and accelerate the global progress of the domestic automotive market. The C-NCAP carries out all-dimensional safety performance tests on the vehicle according to stricter and more comprehensive requirements, wherein the tests comprise passenger protection, pedestrian protection, active safety, electric safety and the like; full-width head-on collision is a working condition of the C-NCAP test, namely the front 100% overlap rigid barrier collision, and the collision speed of the test vehicle is 50 km/h. With the popularization of Chinese electric vehicles, the safety problem of front collision electricity is increasingly severe, the problem that a battery high-voltage wire plug is extruded by a front-end hard part in front collision is difficult to effectively solve, and if the high-voltage plug is extruded and broken, serious safety problems such as electric shock of passengers, vehicle fire and the like can be caused.

To cope with this problem, the existing solution avoids the risk of the high-voltage plug at the front end of the battery being squeezed in the frontal collision by specifying the arrangement position of the battery pack in the whole vehicle, but the solution puts high demands on the volume of the power battery of the vehicle and the relative position in the vehicle. The mainstream vehicle type in the market at present adopts to arrange the battery high-voltage plug in the non-collision deformation area to ensure that the high-voltage plug is not bumped. However, with the increase of the driving mileage of the electric automobile, the size of the battery is continuously increased, the power battery is difficult to be completely arranged in the front collision non-deformation area of the automobile, and the problem that the high-voltage plug at the front end of the battery is extruded in collision can not be effectively solved all the time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide a protection architecture of C-NCAP head-on collision battery high-voltage plug, it is under the prerequisite that does not change vehicle overall structure and power battery installation position, protects the high-voltage plug on the battery when vehicle head-on collision, damages high-voltage plug when preventing to collide and causes the serious safety problem of vehicle.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a protection structure of a high-voltage plug of a C-NCAP (C-NCAP) front collision battery comprises a power battery arranged in a vehicle body, wherein the power battery is fixedly provided with the high-voltage plug; a protection block is fixedly arranged between the vehicle body and the power battery, and two ends of the protection block are respectively matched with the vehicle body and the power battery; the protection block is arranged adjacent to the high-voltage plug, and the size of the protection block in the X direction of the whole vehicle coordinate system is larger than that of the high-voltage plug.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Preferably, a plurality of high-voltage plugs are arranged on one side of the power battery, the protection block is arranged among the high-voltage plugs, and the protection block is fixedly connected with the shell of the power battery; at the end facing away from the power cell, the end of the protection block extends beyond the most distal end of the high voltage plug.

Preferably, one end of the protection block is fixedly connected with the inner side of the vehicle body, and the other end of the protection block is matched with a shell of the power battery; the power battery is provided with a plurality of high-voltage plugs, and the protection block is arranged among the high-voltage plugs and is insulated from the high-voltage plugs.

Preferably, the protection block is fixedly installed by welding or screwing.

Preferably, a hollow cavity is arranged in the protection block, and criss-cross support ribs are arranged in the hollow cavity.

Preferably, the protection block is made of aluminum.

The utility model has the advantages that: the utility model discloses a structure under the prerequisite that does not change original overall structure of vehicle and power battery mounted position, increases the protection piece near power battery's high-pressure plug. When the vehicle has a frontal collision, the two ends of the protection block are respectively abutted against the inner side of the vehicle body and the battery shell, so that the high-voltage plug of the battery is prevented from being extruded in the collision process, and the electrical safety of the vehicle and the personal safety of personnel in the vehicle are protected.

Drawings

Fig. 1 is a schematic view of the body, the protection block and the power battery of the present invention;

FIG. 2 is a schematic diagram of the position matching between the protection block and the high-voltage plug of the present invention;

FIG. 3 is an enlarged view of the portion A of FIG. 2 according to the present invention;

FIG. 4 is a schematic diagram of the size fit between the protection block and the high-voltage plug of the present invention;

fig. 5 is a schematic structural diagram of a protection block according to an embodiment of the present invention;

fig. 6 is a schematic view of the connection between the protection block and the vehicle body according to one embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the power battery 101, the high-voltage plug 2, the vehicle body 3, the protection block 301, the support rib a, the hollow cavity h and the size are different.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to 3, the embodiment provides a protection structure for a high-voltage plug of a C-NCAP front-collision battery, including a power battery 1 installed in a vehicle body 2, wherein the power battery 1 is fixedly provided with a high-voltage plug 101; a protection block 3 is fixedly arranged between the vehicle body 2 and the power battery 1, and two ends of the protection block 3 are respectively matched with the vehicle body 2 and the power battery 1; the protection block 3 is arranged adjacent to the high-voltage plug 101, and the size of the protection block 3 in the X direction of the whole vehicle coordinate system is larger than that of the high-voltage plug 101.

It can be understood that the whole vehicle coordinate system X direction refers to the front-back direction of the vehicle, while the high-voltage plug 101 of the power battery 1 in a general vehicle is arranged approximately along the vehicle X direction, when the vehicle is in a frontal collision, the vehicle body 2 is pressed towards the power battery 1, so that the high-voltage plug 101 is crushed, and the vehicle electrical safety problem is caused. In the solution of the present embodiment, by utilizing the advantage that the casing of the power battery 1 is generally higher in hardness than the high-voltage plug 101, the protection block 3 is disposed between the inner side of the vehicle body 2 and the battery casing, as shown in fig. 4, the dimension of the protection block 3 in the vehicle X direction is larger than that of the high-voltage plug 101, and this dimension difference h provides a protection space for the high-voltage plug 101 and its high-voltage wires, so as to protect the high-voltage plug 101 in the event of a frontal collision. The structure of this embodiment has prevented to cause destruction to high voltage plug 101 when frontal collision, has promoted the electric safety performance of vehicle, has protected vehicle and interior personnel's safety, and does not change the original structure of vehicle, and the cost is lower, is suitable for the popularization.

On the basis of the above technical solution, the present embodiment can be further improved as follows.

As a preferred embodiment, as shown in fig. 2 to 3, a plurality of high voltage plugs 101 are arranged on one side of the power battery 1, the protection block 3 is arranged between the plurality of high voltage plugs 101, and the protection block 3 is fixedly connected with a housing of the power battery 1; at the end facing away from the power cell 1, the end of the protective block 3 extends beyond the most distal end of the high-voltage plug 101. By adopting the rigid protection block 3, a plurality of high-voltage plugs 101 nearby the rigid protection block can be protected, the overall cost is reduced, and the expected technical effect is achieved.

As another preferred embodiment, as shown in fig. 6, one end of the protection block 3 is fixedly connected with the inner side of the vehicle body 2, and the other end thereof is attached to the outer shell of the power battery 1; the power battery 1 is provided with a plurality of high-voltage plugs 101, and the protection block 3 is arranged among the high-voltage plugs 101 and is insulated from the high-voltage plugs 101. In this embodiment, for the equipment of power battery 1 in the car of being convenient for more, can be in advance with protection piece 3 fixed mounting in automobile body 2 inboard, then with power battery 1 correspond install automobile body 2 in, protection piece 3 both can provide frontal collision's protect function in automobile body 2 inboard, can carry on spacingly for power battery 1 again in the installation, is convenient for promote the efficiency of battery installation.

In order to effectively fix the protection block 3 on the inner side of the vehicle body 2 or the shell of the power battery 1, the protection block 3 is fixedly arranged on the inner side of the vehicle body 2 or the shell of the power battery 1 by welding or screw/bolt connection.

In this embodiment, a hollow cavity a is arranged in the protection block 3, and criss-cross support ribs 301 are arranged in the hollow cavity a. Set up protection piece 3 into hollow structure, can reduce protection piece 3's dead weight, do benefit to the fastness of protection piece 3 long-term installation, still can reduce product cost. The criss-cross support ribs 301 can provide higher support strength for the protection block 3, and prevent the protection block 3 from being deformed by pressure in the vehicle collision process, thereby influencing the protection effect on the high-voltage plug 101. For example, as shown in fig. 5, in the present embodiment, the housing of the protection block 3 is a rigid metal rectangular parallelepiped with a thickness of 6mm, and the inside of the protection block 3 is a field-shaped support structure made of the same material, so as to achieve a good support effect. Similarly, the protection block 3 may be provided with a groined structure, and specifically, what supporting rib 301 structure is provided in the hollow cavity a in the protection block 3, and various factors such as the material of the protection block 3 and the collision impact force need to be comprehensively evaluated.

Preferably, the protection block 3 may be made of aluminum. Aluminum materials, which are known lightweight materials, have advantages such as light weight, high strength, and corrosion resistance. The present embodiment utilizes the advantages of aluminum material to provide support protection for the high voltage plug 101 of the power battery 1, and prevent the high voltage plug from being damaged due to the backward movement of the hard part of the vehicle body 2 at the front end of the high voltage plug during collision.

The working principle is as follows:

the high-voltage safety of the vehicle is a key investigation item of the front collision safety and also an important index about the safety of users; at present, the mainstream measures are to stipulate the arrangement position of the battery pack in the whole vehicle to avoid the risk that a high-voltage wire plug at the front end of the battery is extruded in the frontal collision, but the scheme puts high requirements on the volume of the power battery 1 of the vehicle and the relative position in the vehicle, and the new parts of the vehicle, the vehicle body 2 and the battery pack are high in modification cost. The utility model discloses a scheme is under the prerequisite that does not change original overall structure of vehicle and 1 mounted position of power battery, through near the high-pressure plug 101 at 1 front end of power battery increase protection piece 3, provide the striking buffering space through the size difference h between protection piece 3 and the high-pressure plug 101. When the vehicle has a frontal collision, the two ends of the protection block 3 are respectively abutted against the inner side of the vehicle body 2 and the battery shell, so that the high-voltage plug 101 of the battery is prevented from being extruded in the collision process, and the electrical safety of the vehicle and the personal safety of personnel in the vehicle are protected. The utility model discloses a structure simple to operate just is applicable to current most vehicle structure, arranges the position to the battery package and does not have any requirement, the cost of the vehicle transformation that has significantly reduced.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A protection structure of a high-voltage plug of a C-NCAP (C-NCAP) front collision battery is characterized by comprising a power battery (1) arranged in a vehicle body (2), wherein the power battery (1) is fixedly provided with the high-voltage plug (101); a protection block (3) is fixedly arranged between the vehicle body (2) and the power battery (1), and two ends of the protection block (3) are respectively matched with the vehicle body (2) and the power battery (1); the protection block (3) is arranged adjacent to the high-voltage plug (101), and the size of the protection block (3) in the X direction of the whole vehicle coordinate system is larger than that of the high-voltage plug (101).

2. The protection structure of the high-voltage plug of the C-NCAP frontal collision battery is characterized in that a plurality of high-voltage plugs (101) are arranged on one side of the power battery (1), the protection block (3) is arranged among the high-voltage plugs (101), and the protection block (3) is fixedly connected with the shell of the power battery (1); at the end facing away from the power cell (1), the end of the protective block (3) extends beyond the outermost end of the high-voltage plug (101).

3. The protection structure of the high-voltage plug of the C-NCAP frontal collision battery is characterized in that one end of the protection block (3) is fixedly connected with the inner side of the vehicle body (2), and the other end of the protection block is matched with the shell of the power battery (1); the power battery (1) is provided with a plurality of high-voltage plugs (101), and the protection block (3) is arranged among the high-voltage plugs (101) and is insulated from the high-voltage plugs (101).

4. The protection structure of a high-voltage plug of a C-NCAP frontal collision battery according to claim 2 or 3, characterized in that the protection block (3) is fixedly installed by welding or screwing.

5. The protection structure of the high-voltage plug of the C-NCAP front-collision battery according to claim 2 or 3, characterized in that a hollow cavity (a) is arranged in the protection block (3), and criss-cross support ribs (301) are arranged in the hollow cavity (a).

6. The protection structure of the high-voltage plug of the C-NCAP front-impact battery according to claim 5, characterized in that the protection block (3) is made of aluminum.