Automobile boosting box mounting structure and automobile

Abstract

The utility model discloses an automobile boosting box installation structure, an automobile comprises a trunk floor and a rear auxiliary frame, the rear auxiliary frame is provided with a rear cross beam, and an installation support is fixedly arranged at the bottom of the trunk floor; the mounting bracket is provided with a boosting box mounting surface which is obliquely arranged from the back to the front lower part, the boosting box is fixedly mounted on the boosting box mounting surface, and the boosting box mounting surface extends towards the rear cross beam side along the inclination direction of the boosting box mounting surface and then is not intersected with the rear cross beam all the time; according to the automobile boosting box installation structure and the automobile, the risk that the automobile boosting box arranged at the bottom of the automobile trunk floor collides with the rear beam of the rear auxiliary frame in the rear collision process can be reduced, and therefore the safety of the automobile is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile design, specifically relates to a kind of automobile booster box installation structure and automobile. BACKGROUND

[0002] Automobile booster box, usually called high-voltage distribution box, is mainly responsible for the distribution and management of high-voltage power, and is a key component in the high-voltage system of electric vehicles. In the related art, the automobile booster box is arranged at the bottom of the trunk floor, and is usually directly fixed to the trunk floor by bolts. In a load-bearing body structure with a rear subframe, the horizontally arranged booster box is prone to collision with the rear cross beam of the rear subframe during high-speed (usually greater than 90 km / h) rear impact. Since the booster box is in a high-voltage state after the vehicle is powered on, damage to the booster box can easily cause a high-voltage short circuit and pose a fire risk, reducing the safety of the vehicle. Therefore, it is necessary to improve the design of the installation structure of the existing automobile booster box to reduce the risk of collision between the automobile booster box arranged at the bottom of the trunk floor and the rear cross beam of the rear subframe during rear impact, and to improve the safety of the vehicle. SUMMARY

[0003] Therefore, the purpose of the utility model is to provide an automobile booster box installation structure and automobile, which can reduce the risk of collision between the automobile booster box arranged at the bottom of the trunk floor and the rear cross beam of the rear subframe during rear impact, and improve the safety of the vehicle.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile booster box installation structure, the automobile comprising a trunk floor and a rear subframe, the rear subframe having a rear cross beam, and the trunk floor bottom being provided with a mounting bracket; the mounting bracket is provided with a booster box mounting surface inclined from rear to front and downward, the booster box being fixedly installed on the booster box mounting surface, and the booster box mounting surface extending to the rear cross beam side along the inclination direction thereof without intersecting the rear cross beam.

[0005] Further, the mounting bracket comprises an upper bracket fixedly arranged at the bottom of the trunk floor and a lower bracket fixedly connected to the bottom of the upper bracket, and the booster box mounting surface is arranged at the bottom of the lower bracket.

[0006] Further, the upper bracket has a W-shaped structure in transverse cross section, and a first reinforcing cavity with two open ends in longitudinal direction is formed between the upper bracket and the trunk floor.

[0007] Further, the upper bracket top is provided with outwardly folded lap flange portions on both sides in transverse direction, and the lap flange portions are welded and fixed to the trunk floor.

[0008] Further, the longitudinal section of the lower support is in the shape of a Chinese character 'Z', and a second reinforcing cavity is formed between the lower support and the booster box, and the second reinforcing cavity has two ends open in the transverse direction.

[0009] Further, the top surface of the lower support is provided with a plurality of concave reinforcing ribs.

[0010] Further, the upper support and the lower support are sheet metal parts.

[0011] Further, the upper support and the lower support are provided with lightening holes.

[0012] Further, the top edge of the booster box is provided with a plurality of connecting lugs in the circumferential direction, and the connecting lugs are detachably connected to the mounting support.

[0013] Also provided is an automobile comprising the automobile booster box mounting structure as described above.

[0014] Compared with the prior art, the automobile booster box mounting structure has the following beneficial effects:

[0015] The automobile booster box mounting structure and the automobile can reduce the risk of collision between the automobile booster box arranged at the bottom of the luggage compartment floor and the rear cross beam of the rear subframe during rear impact, thereby improving the safety of the automobile. Specifically, the booster box is mounted on the booster box mounting surface of the mounting support arranged obliquely, the booster box mounting surface can guide the displacement of the booster box, during rear impact of the automobile, the mounting support will first contact the rear cross beam, and the booster box will displace along the oblique direction of the booster box mounting surface. Since the booster box mounting surface extends to the side of the rear cross beam along the oblique direction of the booster box mounting surface and always does not intersect with the rear cross beam, the booster box can be staggered with the rear cross beam and does not collide with the rear cross beam, thereby effectively reducing the risk of collision between the booster box and the rear cross beam, and improving the safety of the automobile. Of course, in the automobile booster box mounting structure, the arrangement position and attitude of the booster box have high space utilization, and do not affect the ground clearance angle of the whole vehicle and the arrangement of other parts.

[0016] Other advantages, objects, and features of the present application will be apparent to those skilled in the art from the following specification, in some degree of generality, and to those who actually practice the present application based on the teachings herein, or can be learned from a study of the drawings. The objects and other advantages of the present application can be realized and attained by means of the instrumentalities and combinations pointed out in the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The front view structural schematic diagram of the embodiment of the present application;

[0018] Fig. 2 The axonometric structural schematic diagram of the booster box and the mounting support assembled together;

[0019] 1 - luggage compartment floor; 2 - rear subframe; 201 - rear cross beam; 3 - mounting bracket; 301 - upper bracket; 301a - first reinforcing cavity; 301b - lap flange portion; 301c - weight reduction hole; 302 - lower bracket; 302a - second reinforcing cavity; 302b - lower concave reinforcing rib; 4 - booster box; 401 - connecting lug. DETAILED DESCRIPTION

[0020] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the specification without departing from the spirit of the present application. It should be noted that the drawings provided in the following embodiments are only used to illustrate the basic concept of the present application, and the features in the following embodiments and embodiments can be combined with each other without conflict.

[0021] Please refer to Figs. 1-2 In the embodiment, a booster box mounting structure of an automobile is disclosed, the automobile comprises a luggage compartment floor 1 (i.e. automobile trunk floor) and a rear subframe 2, the rear subframe 2 is provided with a rear cross beam 201, and a mounting bracket 3 is fixedly arranged at the bottom of the luggage compartment floor 1; an inclined booster box mounting surface 3a is arranged on the mounting bracket 3 from the rear to the front and downward, the booster box 4 is fixedly mounted on the booster box mounting surface 3a, and the booster box mounting surface 3a extends to the side of the rear cross beam 201 along the inclined direction and does not intersect with the rear cross beam 201; that is, the extension surface of the booster box mounting surface 3a after extending to the side of the rear cross beam 201 along the inclined direction is below the rear cross beam 201 (the booster box mounting surface 3a is adapted to the top surface of the booster box, which is generally a plane, that is, it can be understood that the rear cross beam 201 is above the plane where the booster box mounting surface 3a is located in space); it should be noted that "front" and "rear" in "inclined from the rear to the front and downward" refer to the front and rear in the front-rear direction of the automobile, wherein the side of the vehicle head is the front, and the side of the vehicle tail is the rear; in theory, the specific structure of the mounting bracket 3 is not limited, as long as an inclined mounting surface for mounting the booster box 4 can be formed; it can be understood that the mounting bracket 3 is located at the rear of the rear cross beam 201 of the rear subframe 2 in the front-rear direction of the vehicle body, which reasonably utilizes the arrangement space of the rear of the rear subframe 2 and the bottom of the luggage compartment floor 1, and ensures the compactness of the vehicle arrangement;

[0022] The automobile booster box mounting structure provided above can reduce the risk of collision between the automobile booster box 4 arranged at the bottom of the automobile trunk floor 1 and the rear cross beam 201 of the rear subframe 2 in the rear collision, thereby improving the safety of the automobile. Specifically, by mounting the booster box 4 on the booster box mounting surface 3a arranged obliquely on the mounting bracket 3, the booster box mounting surface 3a can play a certain displacement guiding role on the booster box 4. In the rear collision of the automobile, the mounting bracket 3 will first contact the rear cross beam 201, and the booster box 4 will be displaced along the oblique direction of the booster box mounting surface 3a. Since the booster box mounting surface 3a always does not intersect with the rear cross beam 201 after extending to the side of the rear cross beam 201 along the oblique direction of itself, the booster box 4 can be staggered with the rear cross beam 201 and does not collide with the rear cross beam 201, effectively reducing the risk of collision between the booster box 4 and the rear cross beam 201, thereby improving the safety of the automobile. Of course, in the automobile booster box mounting structure, the arrangement position and attitude of the booster box 4 have high space utilization, and do not affect the ground clearance and arrangement of other parts of the automobile.

[0023] In the embodiment, the mounting bracket 3 includes an upper bracket 301 fixed to the bottom of the trunk floor 1 and a lower bracket 302 fixedly connected to the bottom of the upper bracket 301, and the booster box mounting surface 3a is arranged at the bottom of the lower bracket 302. Here, the upper bracket 301 and the trunk floor 1 can be fixedly connected by welding or bolt connection, and the lower bracket 302 can be connected to the upper bracket 301 by welding or bolt connection. In the structure design, the overall bracket structure formed by the two brackets is beneficial to simplify the structure design of the single bracket, thereby being beneficial to ensure the production quality of the single bracket and reduce the manufacturing cost. Arranging the booster box mounting surface 3a at the bottom of the lower bracket 302 is beneficial to the assembly and installation of the booster box 4.

[0024] In the embodiment, the upper bracket 301 has a W-shaped structure in the transverse cross section, and a first reinforcing cavity 301a with openings at both longitudinal ends is formed between the upper bracket 301 and the trunk floor 1. Here, "transverse" refers to the width direction of the vehicle body, and "longitudinal" refers to the length direction of the vehicle body. The W-shaped upper bracket 301 is fixedly connected to the bottom surface of the trunk floor 1. The upper bracket 301 in the structure design is simple in structure and good in overall structural strength, and the first reinforcing cavity 301a formed effectively improves the torsional strength of the upper bracket 301, thereby being beneficial to ensure the installation stability of the booster box 4 under normal working conditions. At the same time, the first reinforcing cavity 301a in the structure can play a certain buffering and energy absorption role in the rear collision of the automobile.

[0025] In the embodiment, the upper support 301 is provided with outwardly folded lap flanging portions 301b on the top of the two lateral sides, and the lap flanging portions 301b are welded and fixed on the luggage compartment floor 1. Here, the transverse direction refers to the width direction of the vehicle body. The two groups of lap flanging portions 301b are welded and connected with the luggage compartment floor 1, which is beneficial to ensure the connection stability of the upper support 301 and the luggage compartment floor 1 and improve the use durability of the overall structure.

[0026] In the embodiment, the longitudinal section of the lower support 302 is in a U-shaped structure, and the second reinforcing cavity 302a is formed between the lower support 302 and the booster box 4, and the two ends of the second reinforcing cavity 302a are open. Here, the longitudinal direction refers to the length direction of the vehicle body, and the bottom surface of the two flanges of the lower support 302 is the booster box mounting surface 3a. The U-shaped structure of the lower support 302 is simple, and the second reinforcing cavity 302a formed thereby is beneficial to ensure the stability of the mounting structure of the booster box 4 and the lower support 302. At the same time, the second reinforcing cavity 302a can play a certain buffering and energy absorption role when the automobile is rear-impacted. In addition, the overall support mounting structure formed by the first reinforcing cavity 301a on the upper support 301 has good structural strength, which is beneficial to ensure the mounting stability of the booster box 4.

[0027] In the embodiment, the top surface of the lower support 302 is provided with a plurality of concave reinforcing ribs 302b. Specifically, there are two concave reinforcing ribs 302b, which are arranged along the inclined direction of the top surface of the lower support 302. By arranging a plurality of concave reinforcing ribs 302b at reasonable positions, the structural strength of the lower support 302 can be further improved, and the use durability can be improved.

[0028] In the embodiment, the upper support 301 and the lower support 302 are both sheet metal parts. The sheet metal part structure is simple to process, which is beneficial to reduce the manufacturing cost and facilitate the lightweight design of the overall structure.

[0029] In the embodiment, the upper support 301 and the lower support 302 are both provided with weight-reducing holes 301c. By arranging the weight-reducing holes 301c, the lightweight design of the overall structure can be further improved.

[0030] In the embodiment, the top edge of the booster box 4 is provided with a plurality of connecting lugs 401 in the circumferential direction, and the connecting lugs 401 are detachably connected to the mounting support 3. Specifically, two connecting lugs 401 are arranged on each of the two side surfaces of the booster box 4 along the inclined direction of the booster box mounting surface 3a, and the connecting lugs 401 and the booster box 4 are in an integral structure, and the booster box 4 and the mounting support 3 are connected by bolts. By arranging a plurality of connecting lugs 401 and in a detachable connection manner, the assembly of the booster box 4 can be improved, and the connection reliability of the booster box 4 can be ensured.

[0031] The automobile of the embodiment also discloses a car boost box mounting structure, and the automobile has good safety and small risk of boost box damage and fire.

[0032] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. An automobile boost box installation structure, characterized by: The automobile comprises a trunk floor (1) and a rear subframe (2), wherein the rear subframe (2) is provided with a rear crossbeam (201), and a mounting bracket (3) is fixedly provided at the bottom of the trunk floor (1); The mounting bracket (3) is provided with a boost box mounting surface (3a) arranged obliquely from the rear to the front and downward, the boost box (4) is fixedly mounted on the boost box mounting surface (3a), and the boost box mounting surface (3a) extends toward the rear cross beam (201) along its own oblique direction and never intersects with the rear cross beam (201).

2. The automobile step-up box mounting structure according to claim 1, characterized by: The mounting bracket (3) comprises an upper bracket (301) fixedly arranged at the bottom of the luggage compartment floor (1) and a lower bracket (302) fixedly connected to the bottom of the upper bracket (301), and the boost box mounting surface (3a) is arranged at the bottom of the lower bracket (302).

3. The automobile step-up box mounting structure according to claim 2, characterized by: The transverse cross-section of the upper bracket (301) is a W-shaped structure, and a first reinforcement cavity (301a) with longitudinal ends opened respectively is formed between the upper bracket (301) and the luggage compartment floor (1).

4. The automobile step-up box mounting structure according to claim 3, characterized by: The upper bracket (301) is provided with outwardly folded overlapping flanges (301b) on both sides of its top, and the overlapping flanges (301b) are welded and fixed to the luggage compartment floor (1).

5. The automobile step-up box mounting structure according to claim 2, characterized by: The longitudinal cross-section of the lower bracket (302) is an "X"-shaped structure, and a second reinforcement cavity (302a) with openings at both ends is formed between the lower bracket (302) and the boost box (4).

6. The automobile step-up box mounting structure according to claim 5, characterized by: A plurality of concave reinforcing ribs (302b) are provided on the top surface of the lower bracket (302).

7. The automobile step-up box mounting structure according to claim 2, characterized by: The upper bracket (301) and the lower bracket (302) are both sheet metal parts.

8. The automobile step-up box mounting structure according to claim 7, characterized by: The upper bracket (301) and the lower bracket (302) are both provided with weight-reducing holes (301c).

9. The automobile step-up box mounting structure according to claim 1, characterized by: The top edge of the boost box (4) is provided with a plurality of connecting ears (401) along the circumference, and the connecting ears (401) are detachably connected to the mounting bracket (3).

10. An automobile comprising the automobile boost box mounting structure according to any one of claims 1 to 9.

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