CN209786002U - A double-layer structure aluminum alloy battery box for an environmentally friendly new energy vehicle - Google Patents

Abstract

The utility model discloses a double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle, which comprises a box body and a top cover. A first cooling hole is opened at the center of the bottom of the box body. The first mounting plate is welded symmetrically about the vertical center line of the box body, and the inside of the box body is located on both sides of the first mounting plate and is welded with limit blocks symmetrically. grooves, and shock-absorbing spring coils are sleeved inside the slide grooves. In the utility model, the battery box for new energy vehicles adopts an aluminum alloy structure as a whole, which is light in weight and strong in rigidity. The multi-layer placement process of the battery pack can be realized. This structure not only increases the placement area inside the battery box, facilitates the placement and handling of multiple battery packs, but also improves the space utilization rate inside the battery box.

Description

A double-layer structure aluminum alloy battery box for an environmentally friendly new energy vehicle

technical field

The utility model belongs to the technical field of battery boxes for new energy vehicles, in particular to an environment-friendly new energy vehicle with a double-layer structure aluminum alloy battery box.

Background technique

New energy vehicles refer to the use of unconventional vehicle fuels as power sources (or the use of conventional vehicle fuels, the use of new vehicle power devices), integrated vehicle power control and advanced technology in driving, the formation of advanced technical principles, with Vehicles with new technology and new structure, new energy vehicles include pure electric vehicles, extended-range electric vehicles, hybrid vehicles, fuel cell electric vehicles, hydrogen engine vehicles, other new energy vehicles, etc. The battery box is composed of several single batteries, box A battery pack consisting of a body, a battery management system, and related installation structural parts (equipment), etc., has a standard battery box structure, battery box monitoring equipment, battery box connectors, battery box environmental control equipment, etc. The existing battery boxes for new energy vehicles on the market have simple structures and single functions. There is a single layer for placement, and there is no multi-layer structure inside to facilitate the placement of the battery pack. The utilization rate of the placement space is low. It is more difficult to discharge heat, which will easily lead to a reduction in the service life of the battery pack. Finally, the existing battery box for new energy vehicles does not have a shock-absorbing protection device for the battery pack inside, and the shock-absorbing and shock-resistant effects are poor.

Utility model content

The purpose of this utility model is: in order to solve the problems of low space utilization rate inside the battery box, poor heat dissipation effect of the battery box, and poor shock absorption of the battery box, to provide an environment-friendly new energy vehicle. Structural aluminum alloy battery box.

The technical scheme that the utility model adopts is as follows:

An environment-friendly double-layer structure aluminum alloy battery box for new energy vehicles, comprising a box body and a top cover, the bottom center of the box body is provided with a first cooling hole, and the bottom of the inner wall of the box body is vertically connected to the box body. The center line is symmetrically welded with a first mounting plate, and the inside of the box is located on both sides of the first mounting plate and is welded with limiting blocks symmetrically. The inner center of the limiting block is vertically provided with multiple sets of slide grooves. The inside of the groove is sleeved with shock-absorbing spring coils, and the inside of the box is located below the limit block and is provided with a first layer structure, and the bottom two sides of the first layer structure are symmetrical above the vertical centerline of the chute. Welding limited sliding posts, the top of the first layer structure is welded with a second mounting plate symmetrically with respect to the vertical centerline of the first layer structure, the top of the first layer structure is located on both sides of the second mounting plate through the first The fixing studs are symmetrically fixedly connected with a support plate, the top of the support plate is welded with a second layer structure, and the top of the second layer structure is welded with a third mounting plate symmetrically with respect to the vertical midline of the second layer structure. The top of the box body is fixedly connected with a top cover through the second fixing stud, and the inner two sides of the top cover are symmetrically provided with second cooling holes, and the outer sides of the top cover are welded on one side of the second cooling holes. Dust-proof partition.

Wherein, the four corners of the bottom of the box are embedded with non-slip rubber pads.

Wherein, the insides of the first heat dissipation holes and the second heat dissipation holes are embedded with dust-proof leakage nets.

Wherein, a plurality of sets of mounting holes are equally spaced at the inner centers of the first mounting plate, the second mounting plate and the third mounting plate.

Wherein, there are three sets of limit sliding posts in total, and the three sets of limit sliding posts are symmetrically distributed with respect to the vertical center line of the first layer structure, and the distance between any two of them is equal.

Wherein, the tops of the first layer structure and the second layer structure are provided with multiple groups of through holes.

Wherein, the cross-section of the dust-proof partition is an inverted L-shaped structure.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. In this utility model, the battery box for new energy vehicles adopts an aluminum alloy structure as a whole, which is light in weight and strong in rigidity. This structure not only increases the placement area inside the battery box, facilitates the placement and handling of multiple battery packs, but also improves the space utilization rate inside the battery box.

2. In the utility model, when the battery pack inside the battery box is working, due to the effect of air flow, the heat generated by the battery pack will rise vertically toward the top cover, and the hot air inside the battery box will pass through the top cover. The second cooling hole is exhausted, and at the same time, due to the effect of air circulation, the cold air from the outside will enter the inside of the battery box through the first cooling hole at the bottom of the box. This structure is convenient for the circulation and heat dissipation of the battery pack inside the battery box. Discharge the heat inside the box, thus prolonging the service life of the battery pack.

3. In the utility model, the battery pack fixed on the mounting plate on the first layer structure and the second layer structure, due to the effect of gravity, will squeeze the shock-absorbing spring coil inside the limit plate through the limit sliding column, thereby maintaining the first In the elastic equilibrium state of the first-tier structure and the second-tier structure, when the vehicle is bumping, due to the gravity of the battery pack, the limit sliding column will vertically squeeze the shock-absorbing spring coil in the chute downward, and the shock-absorbing spring coil It will be deformed, so as to buffer the impact force of the battery. This structure can perform elastic shock absorption protection on the battery pack, thereby improving the shock absorption of the battery box.

Description of drawings

Fig. 1 is a kind of environmental protection type new energy automobile of the present utility model double-layer structure aluminum alloy battery box structural schematic diagram;

Fig. 2 is a side sectional view of the first layer structure and the second layer structure in the utility model;

Fig. 3 is a top view of the first layer structure in the present invention.

Marks in the figure: 1. Box body; 2. Non-slip rubber pad; 3. The first heat dissipation hole; 4. Dust-proof leakage net; 5. The first mounting plate; 6. Limiting block; 7. Shock absorbing spring coil; 1st layer structure; 9. Limit sliding column; 10. Second mounting plate; 11. Support plate; 12. Second layer structure; 13. First fixing stud; 14. Third mounting plate; 15. Top cover ; 16, the second fixing stud; 17, the second cooling hole; 18, the dust-proof partition; 19, the chute; 20, the mounting hole; 21, the through hole.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific Therefore, it cannot be construed as a limitation on the present invention; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be interpreted as indicating or implying relative importance; in addition, Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be interpreted in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, or an indirect connection through an intermediary, or an internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Referring to Figures 1-3, a double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle includes a box body 1 and a top cover 15, the bottom center of the box body 1 is provided with a first heat dissipation hole 3, and the box body 1 The bottom of the inner wall is symmetrically welded with a first mounting plate 5 with respect to the vertical center line of the box body 1. The inside of the box body 1 is located on both sides of the first mounting plate 5 and is welded with a limit block 6 symmetrically. The inner center of the limit block 6 is vertically opened. There are multiple sets of chute 19, the inside of the chute 19 is sleeved with shock absorbing spring coil 7, the inside of the box body 1 is located below the limit block 6 and is provided with a first layer structure 8, the bottom of the first layer structure 8 is two The side is located above the vertical centerline of the chute 19 and is welded with a limit slide column 9 symmetrically. The top of the first layer structure 8 is welded with a second mounting plate 10 symmetrically about the vertical centerline of the first layer structure 8. The first layer structure 8 The top is located on both sides of the second mounting plate 10 and is fixedly connected with the support plate 11 symmetrically through the first fixing studs 13. The top of the support plate 11 is welded with the second layer structure 12, and the top of the second layer structure 12 is about the second layer structure. The vertical midline of 12 is welded with a third mounting plate 14 symmetrically, the top of the box body 1 is fixedly connected with a top cover 15 through a second fixing stud 16, and the inside of the top cover 15 is symmetrically provided with a second cooling hole 17 on both sides. The outer two sides of the cover 15 are welded with dust-proof partitions 18 on one side of the second cooling hole 17 .

Further, anti-skid rubber pads 2 are embedded at the four corners of the bottom of the box body 1. The setting of the anti-skid pads 2 not only improves the placement stability of the box body 1, but also raises the box body 1 to a certain height. It is convenient for heat dissipation treatment of the box body 1 .

Further, the inside of the first cooling hole 3 and the second cooling hole 17 are all embedded with a dust-proof filter 4, and the setting of the dust-proof filter 4 can prevent external dust from entering the inside of the box body 1, causing the inside of the box body 1 to of ash.

Further, a plurality of sets of mounting holes 20 are equally spaced in the inner centers of the first mounting plate 5 , the second mounting plate 10 and the third mounting plate 14 , and the mounting holes 20 are used for mounting and fixing the battery pack.

Further, there are three groups of limiting sliding columns 9, and the three groups of limiting sliding columns 9 are symmetrically distributed about the vertical centerline of the first layer structure 8, and the distance between each pair is equal. The setting of multiple groups of limiting sliding columns 9 , the stability of the movement of the first layer structure 8 and the second layer structure 12 can be improved.

Further, the tops of the first layer structure 8 and the second layer structure 12 are provided with a plurality of sets of through holes 21, and the arrangement of the through holes 21 facilitates the air circulation inside the box body 1, thereby improving the heat dissipation effect of the battery box.

Furthermore, the cross-section of the dust-proof partition 18 is an inverted L-shaped structure, which can prevent external dust from accumulating outside the second heat dissipation hole 17 , resulting in a decrease in the circulation of the second heat dissipation hole 17 .

Working principle: place the battery pack on the first mounting plate 5 inside the box body 1, and screw the battery pack into the mounting hole 20 in the first mounting plate 5 through bolts to complete the installation of the battery pack on the first mounting plate 5. Then the battery pack is placed on the second mounting plate 10 on the first layer structure 8 and the third mounting plate 14 on the second layer structure 12 in turn, and the battery pack is fixed on the second mounting plate 10 and the second mounting plate 14 by bolts. On the third mounting plate 14, the first layer of structure 8 is slid into the chute 19 inside the limit block 6 through the limit slide column 9, and the placement process of the battery pack is completed, and the limit slide column 9 will be due to Under the effect of gravity, it slides vertically into the chute 19, squeezes the shock-absorbing spring coil 7 in the chute 19, thereby performing elastic buffer protection on the battery pack, placing the top cover 15 on the top of the box body 1, and passing The second fixing stud 16 is fixed, and the installation of the battery pack is completed. When the battery pack is working, the heat generated by the battery pack will rise vertically towards the top cover 15, and the hot air inside the battery box will pass through the top cover 15. The second heat dissipation hole 17 on the top is discharged, and at the same time, due to the effect of air flow, the cold air from the outside will enter the inside of the box body 1 through the first heat dissipation hole 3 at the bottom of the box body 1, and the battery pack in the box body 1 Perform thermal treatment.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (7)

1. A double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle, comprising a box body (1) and a top cover (15), is characterized in that: the bottom center of the box body (1) is provided with a first Cooling holes (3), the bottom of the inner wall of the box (1) is symmetrically welded with a first mounting plate (5) with respect to the vertical center line of the box (1), and the inside of the box (1) is located on the first mounting plate The two sides of (5) are welded with limit block (6) symmetrically, and the inner center of the limit block (6) is provided with multiple sets of chute (19) vertically, and the inside of the chute (19) is evenly sleeved. A shock-absorbing spring coil (7) is connected, and the inside of the box body (1) is located below the limit block (6) to be provided with a first layer structure (8), and the bottom two sides of the first layer structure (8) The side is located above the vertical center line of the chute (19), and the limit slide column (9) is welded symmetrically, and the top of the first layer structure (8) is welded with a second layer symmetrically about the vertical center line of the first layer structure (8). The mounting plate (10), the top of the first layer structure (8) is located on both sides of the second mounting plate (10) and is fixedly connected with a support plate (11) symmetrically through the first fixing studs (13), the support The top of the plate (11) is welded with a second layer structure (12), and the top of the second layer structure (12) is welded with a third mounting plate (14) symmetrically about the vertical midline of the second layer structure (12), The top of the box body (1) is fixedly connected with a top cover (15) through a second fixing stud (16), and the inner two sides of the top cover (15) are symmetrically provided with second cooling holes (17). The outer two sides of the top cover (15) are welded with dust-proof partitions (18) on one side of the second cooling hole (17). 2. A double-layer structure aluminum alloy battery box for environment-friendly new energy vehicles as claimed in claim 1, characterized in that: the four corners of the bottom of the box body (1) are embedded with non-slip rubber pads (2 ). 3. A double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle as claimed in claim 1, characterized in that: the insides of the first heat dissipation holes (3) and the second heat dissipation holes (17) are all embedded It is provided with a dust-proof leakage net (4). 4. A double-layer structure aluminum alloy battery box for environment-friendly new energy vehicles as claimed in claim 1, characterized in that: the first mounting plate (5), the second mounting plate (10) and the third mounting plate A plurality of sets of installation holes (20) are equally spaced at the inner center of the plate (14). 5. A double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle as claimed in claim 1, characterized in that: there are three sets of limit sliding posts (9), and three sets of limit sliding posts (9) symmetrically distributed with respect to the vertical centerline of the first layer structure (8), and the distance between any two is equal. 6. A double-layer structure aluminum alloy battery box for an environment-friendly new energy vehicle as claimed in claim 1, characterized in that: the tops of the first layer structure (8) and the second layer structure (12) are opened There are multiple groups of through holes (21). 7. The double-layer structure aluminum alloy battery box for environment-friendly new energy vehicles according to claim 1, characterized in that: the cross-section of the dust-proof partition (18) is an inverted L-shaped structure.