Protective shell for new energy battery

Abstract

The utility model relates to the technical field of new energy battery protection, and discloses a protective shell for a new energy battery, which comprises a battery main body and a protective shell, the two sides of the protective shell are symmetrically provided with heat dissipation ports, a first protective assembly is arranged in the protective shell, and a second protective assembly is arranged on the outer side of the protective shell. The first protection assembly comprises a protection cavity formed in the protection shell, a first air bag is arranged in the protection shell, a partition plate is fixedly connected between the inner walls of the protection cavity, air bag inlets are symmetrically formed in the surface of the partition plate, and a fixing frame is fixedly connected between the inner walls of the protection shell. The surface of the inner wall of the fixing frame is fixedly connected with a buffering piece. According to the utility model, through the cooperative use of the first protection assembly and the second protection assembly, the protection shell is prevented from being in direct contact with the bottom of the protection shell after collision, so that the protection shell is prevented from being damaged, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery protection technical field especially relates to a protective shell for new energy battery. BACKGROUND

[0002] The battery of new energy automobile is located at the bottom of the automobile, which is to improve the stability and gravity center of the vehicle, but also easily leads to the exposure of the battery to the external environment and potential impact risk, collision, impact or other accidents occur in the driving process of new energy automobile, in order to protect new energy battery from the damage of external environment and accidental impact, new energy battery protection shell is used to protect new energy battery;

[0003] The existing new energy battery protection shell is installed at the bottom of the new energy battery to wrap the bottom of the new energy battery for protecting the new energy battery;

[0004] The protection mode of the existing new energy battery protection shell, in actual application, the deformed protection plate contacts the bottom of the new energy battery when the new energy battery protection plate is collided, which still causes damage to the new energy battery, therefore, the protective shell for new energy battery is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a protective shell for new energy battery, which aims at improving the protection mode of the existing new energy battery protection shell in the prior art, in actual application, the deformed protection plate contacts the bottom of the new energy battery when the new energy battery protection plate is collided, which still causes damage to the new energy battery.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a protective shell for new energy battery, including battery main part and protection shell, both sides of the protection shell are symmetrically provided with heat dissipation opening, the inside of the protection shell is provided with first protection assembly, the outside of the protection shell is provided with second protection assembly, the first protection assembly includes protection cavity opened in the inside of protection shell, the inside of the protection shell is provided with first gasbag, the inner wall of the protection cavity is fixedly connected with baffle, the surface of the baffle is symmetrically opened with gasbag inlet, the inner wall of the protection shell is fixedly connected with fixed frame, the inner wall surface of the fixed frame is fixedly connected with buffer piece;

[0007] As a further description of the above technical scheme: the second protection assembly includes protection shell arranged below the protection shell, the inside of the protection shell is opened with placing cavity, the inside of the protection shell is provided with second gasbag, the bottom center of the protection shell is fixedly connected with pressing piece, the outside four corners of the protection shell are fixedly connected with buffer damper;

[0008] As the further description of the above technical scheme: the connecting assembly is arranged between the buffer damping and the protective shell, the connecting assembly comprises connecting blocks fixedly connected at the other end of the buffer damping, a through hole is formed in the interior of each of the four connecting blocks, connecting grooves are uniformly formed on the outer side surface of the protective shell, a locking rod is arranged in the interior of the protective shell, a limiting groove is formed in one side of the connecting groove in the interior of the protective shell, a limiting ring is fixedly connected to the surface of the locking rod, and a spring is fixedly connected between the surface of the limiting ring and the inner wall of the limiting groove;

[0009] As the further description of the above technical scheme: the inner side bottom edge of the protective cavity is provided as an arc-shaped groove, the first air bag is placed in the interior of the protective cavity, the first air bag is located below the partition plate, the air bag inlet is arranged above the two ends of the first air bag, and the buffer member abuts against the outer surface of the battery main body;

[0010] As the further description of the above technical scheme: the area of the protective shell is greater than that of the protective shell, the second air bag is placed in the interior of the placing cavity, the pressing member is located above the second air bag and abuts against the waist portion of the second air bag, and is used for extruding the second air bag;

[0011] As the further description of the above technical scheme: the connecting blocks and the connecting grooves are mutually adapted, and the connecting blocks are movably connected in the interiors of the connecting grooves;

[0012] As the further description of the above technical scheme: the through hole and the limiting groove are in communication, the hole diameter of the through hole is smaller than the inner diameter of the limiting groove, and the locking rod is slidably connected in the interiors of the through hole and the limiting groove;

[0013] As the further description of the above technical scheme: the limiting ring is located in the interior of the limiting groove, the spring is located in the interior of the limiting groove, and the limiting groove can limit the spring.

[0014] The utility model has the advantages of the following beneficial effects:

[0015] 1、In the utility model, through the cooperation of the first protective assembly and the second protective assembly, the protective shell directly contacts the bottom of the protective shell after collision is avoided, thereby avoiding the damage of the protective shell, reducing the cost during maintenance, and when the impact force is too large, the protective shell is deformed, the first air bag is extruded to the surface of the battery main body, the battery main body is wrapped and protected, the battery main body is also avoided from being extruded, and the risk of liquid leakage or explosion of the battery main body is reduced.

[0016] 2. The utility model discloses a connecting assembly is provided, realized the quick installation of second protection assembly at the bottom of protection shell, also can realize the effect that quick detach second protection assembly, and then the replacement of protection shell is convenient, the heat dissipation port of parallel symmetry of setting at the both sides of protection shell makes the stable heat dissipation function of battery main part can be guaranteed while the protection of battery main part is implemented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A three-dimensional schematic view of a protective shell for a new energy battery is provided for the utility model;

[0018] Figure 2 A structure schematic view of a first protection assembly of a protective shell for a new energy battery is provided for the utility model;

[0019] Figure 3 For Figure 2 An enlarged view of A in the middle;

[0020] Figure 4 A structure schematic view of a connecting assembly of a protective shell for a new energy battery is provided for the utility model;

[0021] Figure 5 A structure schematic view of a locking rod of a protective shell for a new energy battery is provided for the utility model.

[0022] Legend:

[0023] 1, battery main part;2, protection shell;3, heat dissipation port;4, first protection assembly;41, protection cavity;42, first air bag;43, baffle;44, air bag inlet;45, fixed frame;46, buffer;5, second protection assembly;51, protection shell;52, place cavity;53, second air bag;54, pressing piece;55, buffer damper;6, connecting assembly;61, connecting block;62, through -hole;63, connecting groove;64, locking rod;65, limit slot;66, limit ring;67, spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Refer to Figure 1 - Figure 5The utility model provides an embodiment: a protective shell for new energy battery, including battery main body 1 and protection shell 2, both sides of protection shell 2 are symmetrically provided with the heat dissipation mouth 3, the inside of protection shell 2 is provided with first protection subassembly 4, the outside of protection shell 2 is provided with second protection subassembly 5, first protection subassembly 4 includes the protection cavity 41 of opening in the inside of protection shell 2, the inside of protection shell 2 is provided with first gasbag 42, fixedly connected with the baffle 43 between the inner wall of protection cavity 41, the surface of baffle 43 is symmetrically provided with gasbag inlet 44, the inner wall of protection shell 2 is fixedly connected with fixed frame 45, the inner wall surface of fixed frame 45 is fixedly connected with buffer 46, the inside bottom edge of protection cavity 41 is arc groove arrangement, first gasbag 42 is placed in the inside of protection cavity 41, first gasbag 42 is below baffle 43, gasbag inlet 44 is arranged above both ends of first gasbag 42, buffer 46 and the outer surface of battery main body 1 abut;

[0026] Second protection subassembly 5 includes the protection shell 51 of setting below protection shell 2, the inside of protection shell 51 is provided with the placing cavity 52, the inside of protection shell 51 is provided with second gasbag 53, the bottom center of protection shell 2 is fixedly connected with pressing piece 54, the outside four corners of protection shell 2 are fixedly connected with buffer damper 55, the area of protection shell 51 is greater than protection shell 2, second gasbag 53 is placed in the inside of placing cavity 52, pressing piece 54 is above second gasbag 53, and abuts with the waist of second gasbag 53, for extruding second gasbag 53, through the cooperation of first protection subassembly 4 and second protection subassembly 5, avoid the contact of protection shell 51 with the bottom of protection shell 2 after collision, thereby avoid the damage of protection shell 2, reduce the cost when maintaining, simultaneously, when the impact force is too big, protection shell 2 deforms, first gasbag 42 is extruded to the surface of battery main body 1 under stress, realize the wrapping protection of battery main body 1, also avoid the extrusion of battery main body 1 when protecting battery main body 1, reduce the risk of battery main body 1 pressure leakage or explosion.

[0027] Refer to Figure 1 - Figure 5The connecting assembly 6 is arranged between the buffer damping 55 and the protective shell 51, the connecting assembly 6 comprises four connecting blocks 61 fixedly connected to the other end of the buffer damping 55, the four connecting blocks 61 are internally provided with through holes 62, the outer side surface of the protective shell 51 is uniformly provided with connecting grooves 63, the inside of the protective shell 51 is provided with locking rods 64, the inside of the protective shell 51 and located on one side of the connecting grooves 63 are provided with limiting grooves 65, the surface of the locking rods 64 is fixedly connected with limiting rings 66, the surface of the limiting rings 66 and the inner wall of the limiting grooves 65 are fixedly connected with springs 67, the connecting blocks 61 and the connecting grooves 63 are mutually adapted, and the connecting blocks 61 are movably connected in the connecting grooves 63, the through holes 62 and the limiting grooves 65 are in communication, and the hole diameter of the through holes 62 is smaller than the inner diameter of the limiting grooves 65, the locking rods 64 are slidingly connected in the through holes 62 and the limiting grooves 65, the limiting rings 66 are located in the limiting grooves 65, the springs 67 are located in the limiting grooves 65, and the limiting grooves 65 can limit the springs 67, through the arrangement of the connecting assembly 6, the second protective assembly 5 is quickly installed at the bottom of the protective shell 2, and the second protective assembly 5 can also be quickly disassembled, thereby facilitating the replacement of the protective shell 51, and the heat dissipation openings 3 symmetrically arranged on both sides of the protective shell 2 can ensure the stable heat dissipation function of the battery main body 1 while protecting the battery main body 1.

[0028] Working principle: in use, first, the connecting groove 63 on the surface of the protective shell 51 is aligned with the connecting block 61, then the locking rods 64 at the four corners of the protective shell 51 are pulled at the same time, the locking rods 64 drive the limiting ring 66 to move, the spring 67 is compressed, the locking rods 64 are separated from the connecting groove 63, the connecting block 61 is placed in the inside of the connecting groove 63, at this time, the locking rods 64 are released, the spring 67 drives the locking rods 64 to reset through the limiting ring 66, so that the protective shell 51 is connected with the connecting block 61, the second protective assembly 5 is quickly installed at the bottom of the protective shell 2, at the same time, the above-mentioned operation is reversed, the second protective assembly 5 can be quickly disassembled, and the protective shell 51 is convenient to replace, when the battery pack of the automobile carrying the device collides in the driving process, the impact force generated by the collision is first transmitted to the bottom of the buffer damping 55 through the protective shell 51, the impact force is reduced through the buffer damping 55, then the impact force is transmitted to the surface of the second air bag 53 through the protective shell 51, at this time, the pressing piece 54 at the bottom of the protective shell 2 extrudes the top surface of the second air bag 53, so that the second air bag 53 is extruded to the two sides of the protective shell 51, thereby avoiding the direct contact between the protective shell 51 and the bottom of the protective shell 2 after the collision, thereby avoiding the damage of the protective shell 2 and reducing the cost during maintenance, when the impact force is too large and is transmitted to the protective shell 2 through the buffer damping 55, the protective shell 2 is deformed, so that the first air bag 42 in the protective shell 2 is extruded, since the inner bottom edge of the protective cavity 41 is an arc-shaped groove, the two ends of the first air bag 42 are extruded to the surface of the battery main body 1 through the air bag inlet 44 on the surface of the partition plate 43 on the two sides, thereby realizing the wrapping protection of the battery main body 1, while protecting the battery main body 1, the risk of liquid leakage or explosion caused by extrusion of the battery main body 1 is avoided, the heat dissipation openings 3 symmetrically arranged on the two sides of the protective shell 2 can ensure the stable heat dissipation function of the battery main body 1 while protecting the battery main body 1.

[0029] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A protective shell for a new energy battery, comprising a battery main body (1) and a protective shell (2), characterized in that: Both sides of the protective shell (2) are symmetrically provided with heat dissipation openings (3), the inside of the protective shell (2) is provided with a first protection assembly (4), and the outside of the protective shell (2) is provided with a second protection assembly (5). The first protection assembly (4) comprises a protection cavity (41) formed in the inside of the protective shell (2), the inside of the protective shell (2) is provided with a first air bag (42), the inner walls of the protection cavity (41) are fixedly connected with a partition plate (43), the surface of the partition plate (43) is symmetrically provided with air bag access openings (44), and the inner walls of the protective shell (2) are fixedly connected with a fixed frame (45).

2. The protective case for new energy batteries according to claim 1, characterized in that: The second protection assembly (5) comprises a protection shell (51) arranged below the protective shell (2), the inside of the protection shell (51) is provided with a placing cavity (52), the inside of the protection shell (51) is provided with a second air bag (53), the bottom center of the protective shell (2) is fixedly connected with a pressing piece (54), and the four corners of the outside of the protective shell (2) are fixedly connected with buffer dampers (55).

3. The protective case for new energy batteries according to claim 2, characterized in that: The connecting assembly (6) is arranged between the buffer damper (55) and the protection shell (51), the connecting assembly (6) comprises a connecting block (61) fixedly connected to the other end of the buffer damper (55), four connecting blocks (61) are internally provided with through holes (62), the outside surface of the protection shell (51) is uniformly provided with connecting grooves (63), the inside of the protection shell (51) is provided with locking rods (64), the inside of the protection shell (51) and on one side of the connecting groove (63) are provided with limiting grooves (65), the surface of the locking rod (64) is fixedly connected with a limiting ring (66), and the surface of the limiting ring (66) and the inner wall of the limiting groove (65) are fixedly connected with springs (67).

4. The protective case for new energy batteries according to claim 1, characterized in that: The inside bottom edge of the protection cavity (41) is provided in an arc-shaped groove, the first air bag (42) is placed in the inside of the protection cavity (41), the first air bag (42) is below the partition plate (43), the air bag access openings (44) are arranged above the two ends of the first air bag (42), and the buffer piece (46) abuts against the outer surface of the battery body (1).

5. The protective case for new energy batteries according to claim 2, characterized in that: The protection shell (51) is larger than the area of the protective shell (2), the second air bag (53) is placed in the inside of the placing cavity (52), the pressing piece (54) is above the second air bag (53) and abuts against the waist of the second air bag (53) to press the second air bag (53).

6. The protective case for a new energy battery of claim 3, wherein: The connecting block (61) and the connecting groove (63) are matched with each other, and the connecting block (61) is movably connected in the inside of the connecting groove (63).

7. The protective case for new energy batteries according to claim 3, characterized in that: The through hole (62) and the limiting groove (65) are in communication with each other, the hole diameter of the through hole (62) is smaller than the inner diameter of the limiting groove (65), and the locking rod (64) is slidably connected in the inside of the through hole (62) and the limiting groove (65).

8. The protective case for new energy batteries according to claim 3, characterized in that: The limiting ring (66) is located in the inside of the limiting groove (65), the spring (67) is located in the inside of the limiting groove (65), and the limiting groove (65) can limit the spring (67).

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