Side plate for storage battery box assembly box body of new energy automobile

Abstract

The utility model is applicable to the technical field of new energy automobile storage battery boxes, and provides a side plate for a new energy automobile storage battery box assembly box body, the side plate comprises a plate outer wall part and a plate inner wall part, the plate outer wall part and the plate inner wall part form a hollow plate body, the side wall of the plate outer wall part is provided with two counterbores, and the counterbores are arranged in the plate outer wall part. The side wall of the plate inner wall part is provided with two adaptive holes, the two counterbores correspond to the two adaptive holes, and the problems that when a solid plate is impacted, energy is directly transmitted to other parts and an energy absorption spring, so that the impact effect of the spring is poor, the buffering effect is poor, and the overall structural weight and the manufacturing cost are additionally increased are solved; according to the mechanism, the partition plate is arranged to divide the cavity of the hollow plate body into the first inner cavity and the second inner cavity, the first inner cavity and the second inner cavity are matched to disperse stress, the extrusion and impact resistance of the side plate is improved, the inner cavities independently absorb energy when being collided and vibrated, harm diffusion can be prevented when battery faults occur, and the manufacturing cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy automobile battery box technical field, more specifically, it relates to a kind of side plate for new energy automobile battery box assembly box body. BACKGROUND

[0002] New energy automobile battery box is the bearing of new energy automobile power battery, generally installed in the lower part of vehicle body, mainly used to protect lithium battery from damage when subjected to external collision, extrusion. The battery box box body structure is mainly composed of upper cover, tray, various metal supports, side plate and other structures, which plays the role of supporting, resisting mechanical impact, mechanical vibration and environmental protection.

[0003] At present, the side plate of the existing battery box assembly box body is a solid structure, and a sliding plate and a hinged plate are provided on the front side of the front side plate. An energy-absorbing spring is provided between the sliding plate and the front side plate. The energy-absorbing spring can have a shock-absorbing effect. The sliding plate and the hinged plate can make the front side plate have better shock-absorbing effect, and avoid deformation caused by impact force.

[0004] However, since the solid plate directly transmits energy to other components and energy-absorbing springs when subjected to impact, the impact effect of the energy-absorbing springs is limited, and there is also a rebound effect, which reduces the buffering effect. The spring buffering and energy-absorbing effect is poor, and the overall structure weight and manufacturing cost are increased. UTILITY MODEL CONTENT

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a side plate for a new energy automobile battery box assembly box body.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a side plate for a new energy automobile battery box assembly box body, comprising an outer wall portion and an inner wall portion, the outer wall portion and the inner wall portion form a hollow plate body, two counterbores are provided on the side wall of the outer wall portion, two adapter holes are provided on the side wall of the inner wall portion, the two counterbores and the two adapter holes are correspondingly arranged, and two mounting holes are provided on the top of the hollow plate body.

[0007] The length of the bottom of the hollow plate body is less than the length of the top of the hollow plate body, and the bottom of the hollow plate body is horizontally arranged, the top of the hollow plate body is inclinedly arranged, the length of the bottom of the hollow plate body is p, the value of p is 122.1mm, and the length of the top of the hollow plate body is f, the value of f is 140.2mm.

[0008] The utility model further sets up: the angle of two included angles of the side wall bottom of board outer wall part is set up as x and y, the angle value of x and y is all 90, the two included angles of the side wall top of board outer wall part is set up as h and k respectively, the angle value of h is 100, the angle value of k is 80, the shape of board inner wall part is same with the shape of board outer wall part.

[0009] The utility model further sets up: the hollow plate body inside is integrative with the partition, the partition divides the cavity of hollow plate body into first inner chamber and second inner chamber, the inclination angle of partition is same with the inclination angle of hollow plate body top, the countersunk hole and the adaptive hole all are located below the partition and communicate with second inner chamber.

[0010] Through adopting above-mentioned technical scheme, the countersunk hole and corresponding adaptive hole cooperate to fix or position the storage battery on the support, and in the storage battery box body, the countersunk hole can avoid the direct contact of fastener head and storage battery or other electrical elements, thereby reducing the risk of electrical short circuit, the countersunk hole makes the fastener head not protrude from the surface of storage battery box side plate, thereby reducing the accidental injury caused by accidentally touching the fastener head in the use process.

[0011] The cavity of hollow plate body is divided into different areas, the stress is dispersed, the side plate can bear greater extrusion force and impact force, deformation and damage caused by local excessive stress are prevented, the overall stability of storage battery box is maintained, and the safety of internal battery is ensured.When collision and vibration occur, the small spaces separated from each other independently buffer and absorb energy, compared with the buffer by using energy-absorbing springs and solid side plates with greater rigidity, the buffer effect is more fine and efficient, the impact force is weakened layer by layer, and the vibration transmitted to the battery is reduced to the greatest extent. Moreover, the air contained in each separated space can block heat transmission and weaken the interference of external temperature fluctuation on the battery. In extreme conditions, if the battery leaks, catches fire or other accidents occur, the first inner chamber, the second inner chamber and the partition can block the harmful liquid, flame and high-temperature gas from running inside the side plate, thereby reducing the scope of accident hazards.

[0012] The utility model further sets up: the top and bottom four corners of hollow plate body are integrally formed with inclined parts.

[0013] The utility model further sets up: the inside bottom wall of second inner chamber is integrally formed with a wedge-shaped part, the top of the wedge-shaped part has the same inclination angle as the partition, and the length of the wedge-shaped part is less than the length of the inside bottom wall of the second inner chamber.

[0014] The utility model further sets up: the interval between two ends of the wedge part and the inside bottom wall edge position of the second inner chamber is set as a, the value of a is 10.5±0.2mm, the thickness between the higher end bottom of the wedge part and the hollow plate body bottom is set as b, the value of b is 5.5±0.2mm, the thickness between the lower end bottom of the wedge part and the hollow plate body bottom is set as c, the value of c is 5±0.2mm.

[0015] By adopting the above technical scheme, when the side plate is injection molded, the corner with the inclined part can reduce friction and adhesion with the mold in the mold demolding stage, so that the molded side plate is more easily separated from the mold, which helps to improve production efficiency and reduce the rate of defective products. When subjected to external force impact, extrusion or internal stress due to temperature change, the inclined part changes the sharp corner of the side plate edge into a gentle transition slope, so that the stress can be more evenly dispersed in a larger range, improving the damage resistance of the side plate.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] (1) By setting the partition plate, the hollow plate body cavity is divided into a first inner cavity and a second inner cavity by the partition plate, the first inner cavity and the second inner cavity area are dispersed in stress, the extrusion and impact resistance of the side plate is improved, and the normal use of the battery box is maintained. When the battery box box is subjected to impact and vibration, the smaller space inside the first inner cavity and the second inner cavity can independently absorb energy, and the buffer is more delicate. In the event of battery leakage, fire and other conditions, it can also block the spread of hazards. Compared with solid side plates, the design of the hollow plate body can effectively reduce material costs and reduce manufacturing costs. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model relates to a whole structure schematic diagram of a side plate for new energy automobile battery box assembly box body.

[0019] Figure 2 The Figure 1 rear view structure schematic diagram.

[0020] Figure 3 The utility model discloses a front view internal cut structure schematic diagram.

[0021] Figure 4 The utility model discloses a side view internal cut structure schematic diagram.

[0022] Figure 5 The utility model discloses a front view structure schematic diagram.

[0023] Explanation of reference signs: 1, outer wall part of plate; 2, countersunk hole; 3, partition plate; 4, first inner cavity; 5, second inner cavity; 6, wedge-shaped part; 7, inclined part; 8, mounting hole; 9, inner wall part of plate; 10, fitting hole. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0026] Please refer to Figures 1-5 The present application provides the following technical solutions:

[0027] Embodiment one, refer to Figures 1-4 A side plate for a new energy automobile storage battery box assembly box body, comprising an outer wall part of plate 1 and an inner wall part of plate 9, the outer wall part of plate 1 and the inner wall part of plate 9 form a hollow plate body, the hollow plate body is formed by the outer wall part of plate 1 and the inner wall part of plate 9, which can achieve the requirement of weight reduction, and under the premise of ensuring the overall strength of the storage battery box, the hollow design can remove excess material, greatly reduce the weight, and the hollow plate body can achieve the effect of buffer protection, and the hollow part forms a buffer space. When the storage battery is subjected to external impact and vibration, the hollow structure can absorb and disperse energy through its own deformation, reduce the impact of impact force on the storage battery, reduce the risk of damage to the internal battery module, and protect the safety and service life of the battery, and the hollow plate body can achieve the effect of heat insulation and heat preservation, that is, the air sealed in the hollow structure can play a role in heat insulation, and the interference of external temperature change on the storage battery is reduced.

[0028] Compared with the solid side plate, the design of the hollow plate body can effectively reduce the material cost and reduce the manufacturing cost.

[0029] Refer to Figure 5 The length of the bottom of the hollow plate body is less than the length of the top of the hollow plate body, the length of the bottom of the hollow plate body is set as p, the value of p is 122.1mm, the length of the top of the hollow plate body is set as f, the value of f is 140.2mm, the bottom of the hollow plate body is horizontally arranged, and the top of the hollow plate body is inclined.

[0030] Refer to Figure 5 In the embodiment, the angles of the two angles of the side wall bottom of the outer wall part of plate 1 are set as x and y, the angle values of x and y are both 90°, the two angles of the side wall top of the outer wall part of plate 1 are set as h and k, the angle value of h is 100°, and the angle value of k is 80°, and the shape of the inner wall part of plate 9 is the same as that of the outer wall part of plate 1.

[0031] Referring to Figures 1-4 In this embodiment, the hollow plate body is integrally formed with a partition plate 3, which strengthens the structure of the hollow plate body and divides the cavity of the hollow plate body into a first inner cavity 4 and a second inner cavity 5 by the partition plate 3, i.e., divides the cavity of the hollow plate body into different areas, disperses the stress, enables the side plate to withstand greater extrusion force and impact force, prevents deformation and damage due to excessive local stress, maintains the overall stability of the battery box, and ensures the safety of the internal battery.

[0032] When a collision or vibration occurs, the small spaces separated from each other independently buffer and absorb energy, and compared with the use of energy-absorbing springs and solid side plates with greater rigidity for buffering, the buffering effect is more delicate and efficient, and the impact force is weakened layer by layer to minimize the vibration transmitted to the battery.

[0033] In addition, the air contained in each separated space can block heat transfer and weaken the interference of external temperature fluctuations on the battery. In extreme conditions, if the battery leaks or catches fire, the first inner cavity 4, the second inner cavity 5, and the partition plate 3 can block the harmful liquid, flame, and high-temperature gas from flowing inside the side plate, thereby reducing the scope of the accident.

[0034] Referring to Figure 3 The inclination angle of the partition plate 3 is the same as that of the top of the hollow plate body, and the inner bottom wall of the second inner cavity 5 is integrally formed with a wedge-shaped portion 6, the top of the wedge-shaped portion 6 has the same inclination angle as the partition plate 3, the length of the wedge-shaped portion 6 is less than the length of the inner bottom wall of the second inner cavity 5, and the wedge-shaped portion 6 not only improves the strength of the second inner cavity 5, but also plays a guiding and blocking role in the second inner cavity 5.

[0035] Referring to Figure 3 The distance between the two ends of the wedge-shaped portion 6 and the edge position of the inner bottom wall of the second inner cavity 5 is set as a, the value of a is 10.5±0.2mm, the thickness between the bottom of the higher end of the wedge-shaped portion 6 and the bottom of the hollow plate body is set as b, the value of b is 5.5±0.2mm, and the thickness between the bottom of the lower end of the wedge-shaped portion 6 and the bottom of the hollow plate body is set as c, the value of c is 5±0.2mm.

[0036] Referring to Figure 1 , Figure 4 and Figure 5The side wall of the outer wall part 1 is provided with two countersunk holes 2, the side wall of the inner wall part 9 is provided with two matching holes 10, the two countersunk holes 2 are arranged corresponding to the two matching holes 10, the top of the hollow plate body is provided with two mounting holes 8, the countersunk holes 2 and the matching holes 10 are located below the partition plate 3 and are communicated with the second inner cavity 5, the countersunk holes 2 and the corresponding matching holes 10 cooperate to fix the storage battery or position the storage battery on the bracket, and in the storage battery box, the countersunk holes 2 can avoid the direct contact between the head of the fastener and the storage battery or other electrical elements, thereby reducing the risk of electrical short circuit, the countersunk holes 2 make the head of the fastener not protrude from the surface of the side plate of the storage battery box, thereby reducing accidental injuries caused by accidentally touching the head of the fastener during use.

[0037] Referring to Figures 1-3 The top and the bottom of the hollow plate body are integrally formed with inclined parts 7 at the corners, when the side plate is injection molded, the corners with the inclined parts 7 can reduce the friction and adhesion with the mold during the mold demolding stage, so that the molded side plate is more easily separated from the mold, which helps to improve the production efficiency and reduce the defective rate, and when subjected to external force impact, extrusion or internal stress due to temperature change, the inclined parts 7 change the sharp corners of the side plate edge into a smooth transition slope, so that the stress can be more evenly dispersed in a larger range, improving the damage resistance of the side plate.

[0038] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

Claims

1. A side plate for a new energy automobile battery box assembly box, characterized in that: The hollow plate body comprises an outer plate wall part (1) and an inner plate wall part (9), the outer plate wall part (1) and the inner plate wall part (9) form a hollow plate body, the side wall of the outer plate wall part (1) is provided with two countersunk holes (2), the side wall of the inner plate wall part (9) is provided with two matching holes (10), the two countersunk holes (2) and the two matching holes (10) are correspondingly arranged, and the top of the hollow plate body is provided with two mounting holes (8). The length of the bottom of the hollow plate body is less than the length of the top of the hollow plate body, the bottom of the hollow plate body is horizontally arranged, the top of the hollow plate body is obliquely arranged, the length of the bottom of the hollow plate body is p, the value of p is 122.1mm, and the length of the top of the hollow plate body is f, the value of f is 140.2mm.

2. The side plate of the battery box assembly case for new energy vehicles according to claim 1, characterized in that: The angles of the two included angles of the side wall of the bottom of the outer plate wall part (1) are x and y, the angle values of x and y are both 90°, the two included angles of the top of the side wall of the outer plate wall part (1) are h and k, the angle value of h is 100°, the angle value of k is 80°, and the shape of the inner plate wall part (9) is the same as that of the outer plate wall part (1).

3. The side plate of the battery box assembly case for new energy vehicles according to claim 1, characterized in that: The hollow plate body is integrally formed with a partition plate (3) inside, the partition plate (3) divides the cavity of the hollow plate body into a first inner cavity (4) and a second inner cavity (5), the inclination angle of the partition plate (3) is the same as that of the top of the hollow plate body, and the countersunk hole (2) and the matching hole (10) are located below the partition plate (3) and communicate with the second inner cavity (5).

4. The side plate of the battery box assembly case for new energy vehicles according to claim 1, characterized in that: The top and the bottom of the hollow plate body are integrally formed with inclined parts (7) at the four corners.

5. The side plate of the battery box assembly case for new energy vehicles according to claim 3, characterized in that: The inside bottom wall of the second inner cavity (5) is integrally formed with a wedge-shaped part (6), the top of the wedge-shaped part (6) has the same inclination angle as the partition plate (3), and the length of the wedge-shaped part (6) is less than the length of the inside bottom wall of the second inner cavity (5).

6. The side plate of the battery box assembly case for new energy vehicles according to claim 5, characterized in that: The distance between the two ends of the wedge-shaped part (6) and the edge position of the inside bottom wall of the second inner cavity (5) is a, the value of a is 10.5±0.2mm, the thickness between the bottom of the higher end of the wedge-shaped part (6) and the bottom of the hollow plate body is b, the value of b is 5.5±0.2mm, and the thickness between the bottom of the lower end of the wedge-shaped part (6) and the bottom of the hollow plate body is c, the value of c is 5±0.2mm.

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