Multilayer protection lithium battery pack

Abstract

The utility model provides a multi-layer protection lithium battery pack, which relates to the technical field of lithium battery protection, and comprises a protection outer shell, a mounting assembly is arranged in the protection outer shell, a protection inner shell is arranged on the mounting assembly, a lithium battery is arranged in the protection inner shell, and square through grooves are formed in four side surfaces of the protection outer shell. And protection buffer assemblies are arranged in the square through grooves. The protective outer shell and the protective inner shell are arranged, the protective outer shell and the protective inner shell are arranged outside the lithium battery pack, the lithium battery pack is protected through the double-layer protection effect, and when the protective outer shell is impacted, a gap between the protective outer shell and the protective inner shell can provide buffering; and the protective inner shell on the inner side and the lithium battery in the lithium battery cannot be extruded, so that the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium battery protection technical field especially relates to a multilayer protection lithium battery group. BACKGROUND

[0002] Lithium battery group is by a plurality of lithium batteries through series connection, parallel connection or series and parallel combination and becomes power system, and lithium battery is a kind of with lithium metal or lithium alloy as negative electrode material, uses non-aqueous electrolyte solution battery.A typical lithium battery mainly includes positive pole, negative pole, diaphragm and electrolyte.

[0003] The existing lithium battery group is mostly installed in battery box, and is used by series connection, parallel connection or series and parallel combination, the existing battery box only the battery box's ontology can protect lithium battery group, resist impact, and the overall protection capability is weak, when the battery box of outside is impacted and broken, the lithium battery ontology in the inside is exposed, so that lithium battery is easily damaged. UTILITY MODEL CONTENT

[0004] To solve the above problem, the utility model provides a multilayer protection lithium battery group to more exactly solve the above-mentioned problem.

[0005] The utility model is realized by the following technical schemes:

[0006] The utility model provides a multilayer protection lithium battery group, including protective shell, installation component is arranged in the protective shell, protective inner shell is arranged on the installation component, lithium battery is installed in the protective inner shell, square through slot is equipped on the four sides of the protective shell, and protective buffer assembly is arranged in the square through slot.

[0007] In an example, the protective buffer assembly includes a fixed frame located within the square through slot, the fixed frame is fixedly connected with the protective shell, a protective plate is slidably connected within the fixed frame, a vertical plate is fixedly connected within the protective shell, three circular rods are fixedly connected to a side of the protective plate facing the vertical plate, all the circular rods pass through the vertical plate and are slidably connected with the vertical plate, and a first spring is fixedly connected between the vertical plate and the protective plate.

[0008] In an example, a square slot is provided on one side of the protective plate, and an elastic buffer pad is fixedly connected in the square slot.

[0009] In an example, an elastic conical tube is fixedly connected to the outside of all the circular rods, and the elastic conical tube is located between the vertical plate and the protective plate.

[0010] In one example, the circular rod is provided with a circular through hole communicating with the square groove, the elastic buffer pad is fixedly connected with a heat-conducting rubber column on one side, the heat-conducting rubber column passes through the circular rod and is in sliding connection with the circular rod, the heat-conducting rubber column is fixedly connected with a heat-conducting plate on one side, the heat-conducting plate is in contact with the protective inner shell, and the elastic buffer pad is made of heat-conducting rubber.

[0011] In one example, the mounting assembly comprises a mounting frame fixedly connected with the protective outer shell, opposite two side walls of the mounting frame are provided with sliding grooves, sliding blocks are in sliding connection in the sliding grooves, two fixing rods are fixedly connected between the two sliding blocks, the mounting plate is in sliding connection on the fixing rods, the protective inner shell is fixedly connected with the mounting plate, the second spring is fixedly connected between the mounting plate and the sliding block, and the third spring is fixedly connected between the sliding block and the mounting frame.

[0012] In one example, the protective outer shell is fixedly connected with a box cover on the upper end, and the box cover is fixedly connected with a handle on the upper surface.

[0013] The multi-layer protective lithium battery pack can bring the following beneficial effects:

[0014] Firstly, the protective outer shell and the protective inner shell are arranged outside the lithium battery pack, and the double-layer protection provides protection for the lithium battery pack, when the protective outer shell is impacted, the impact is first borne by the protective plate, the protective plate moves to the inner side of the protective outer shell under the impact force, pushes the three circular rods to move on the vertical plate, extrudes the first spring during the movement, the first spring is compressed to store energy, gradually buffers the impact force, and continuously weakens the impact force on the protective plate, so that the buffering and force releasing effects are achieved, the protection intensity for the lithium battery pack is improved, the protective inner shell on the inner side and the lithium battery on the inner side are not extruded, and the safety is improved.

[0015] Secondly, the elastic buffer pad and the heat-conducting rubber column are arranged, the heat-conducting plate contacts the protective inner shell, the heat of the protective inner shell is conducted to the elastic buffer pad on the outer side through the heat-conducting rubber column, the heat is dissipated by the elastic buffer pad, the heat dissipation speed of the internal lithium battery pack is improved, and when impacted, the elastic buffer pad and the heat-conducting rubber column are elastic and can buffer to some extent, so that the use is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application, form a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0017] In the drawings:

[0018] Figure 1 The drawings are structural schematic diagrams of the present application.

[0019] Figure 2 It is the structure schematic view of protective shell and protective inner shell of the utility model.

[0020] Figure 3 It is the structure schematic view of elastic conical tube and heat conduction rubber column of the utility model.

[0021] Figure 4 It is the structure schematic view of mounting assembly of the utility model.

[0022] In the figure: 1, protective shell;2, mounting assembly;21, mounting frame;22, sliding block;23, fixed rod;24, mounting plate;25, second spring;26, third spring;3, protective inner shell;4, protective buffer assembly;41, fixed frame;42, protective plate;43, vertical plate;44, round rod;45, first spring;5, elastic buffer pad;6, elastic conical tube;7, heat conduction rubber column;8, heat conduction plate;9, lid;10, handle. DETAILED DESCRIPTION

[0023] In order to more clearly explain the overall concept of the utility model, the following detailed description is made in an exemplary manner in conjunction with the drawings of the specification.

[0024] As Figures 1-4 The embodiment of the utility model discloses a multilayer protective lithium battery group, which is characterized by comprising a protective shell 1, a mounting assembly 2 is arranged in the protective shell 1, a protective inner shell 3 is arranged on the mounting assembly 2, a lithium battery is installed in the protective inner shell 3, square through slots are arranged on four sides of the protective shell 1, protective buffer assemblies 4 are arranged in the square through slots, the device is provided with the protective shell 1 and the protective inner shell 3 outside the lithium battery group, the double-layer protective effect is provided for the lithium battery group, meanwhile, the protective shell 1 and the protective inner shell 3 have a gap, when the protective shell 1 is deformed by impact, the gap between the protective shell 1 and the protective inner shell 3 can provide buffering, the protective inner shell 3 on the inner side and the lithium battery in the interior are not extruded, and safety is improved.

[0025] As Figure 2 With Figure 3As shown, the protective buffer assembly 4 includes a fixed frame 41 located in the square through slot, the fixed frame 41 is fixedly connected with the protective shell 1, the protective plate 42 is slidably connected in the fixed frame 41, the vertical plate 43 is fixedly connected in the protective shell 1, three circular rods 44 are fixedly connected on the side of the protective plate 42 facing the vertical plate 43, all the circular rods 44 penetrate through the vertical plate 43 and are slidably connected with the vertical plate 43, the first spring 45 is fixedly connected between the vertical plate 43 and the protective plate 42, when the protective shell 1 is impacted, it first impacts on the protective plate 42, the protective plate 42 moves to the inside of the protective shell 1 under the action of the impact force, pushes the three circular rods 44 to move on the vertical plate 43, and extrudes the first spring 45 when moving, the first spring 45 is compressed and stored, gradually buffers the impact force, and continuously weakens the impact force on the protective plate 42, so as to achieve the effect of buffering and unloading, and improve the protection strength of the lithium battery pack.

[0026] As shown in the figure, Figure 2 With Figure 3 As shown, one side of the protective plate 42 is provided with a square slot, the elastic buffer pad 5 is fixedly connected in the square slot, the outer side of all the circular rods 44 is fixedly connected with the elastic conical tube 6, the elastic conical tube 6 is located between the vertical plate 43 and the protective plate 42, when the impact force impacts on the protective plate 42, it first contacts the elastic buffer pad 5, the elastic buffer pad 5 deforms, first buffers and weakens the impact force, then when the impact force impacts the protective plate 42 to move, the protective plate 42 pushes the circular rods 44 to slide on the vertical plate 43, extrudes the elastic conical tube 6 in the middle, so that the elastic conical tube 6 deforms, and then buffers the impact force to a certain extent, thereby reducing the damage of the impact force to the protective shell 1.

[0027] As shown in the figure, Figure 3 As shown, one side of the circular rod 44 is provided with a circular through hole, the circular through hole is communicated with the square slot, one side of the elastic buffer pad 5 is fixedly connected with the heat-conducting rubber column 7, the heat-conducting rubber column 7 penetrates through the circular rod 44 and is slidably connected with the circular rod 44, one side of the heat-conducting rubber column 7 is fixedly connected with the heat-conducting plate 8, the heat-conducting plate 8 is in contact with the protective inner shell 3, the material of the elastic buffer pad 5 is heat-conducting rubber, in use, the heat-conducting plate 8 contacts the protective inner shell 3, and the lithium battery pack inside the protective inner shell 3 generates heat when in use, causing the temperature of the protective inner shell 3 to rise, affecting the heat dissipation of the lithium battery pack, at this time, the heat-conducting plate 8 conducts the heat on the protective inner shell 3 to the outside elastic buffer pad 5 through the heat-conducting rubber column 7, and the elastic buffer pad 5 performs heat dissipation treatment, thereby improving the heat dissipation speed of the internal lithium battery pack, and when impacted, the elastic buffer pad 5 and the heat-conducting rubber column 7 are both elastic and can buffer to a certain extent, making use more convenient.

[0028] As shown in the figure, Figure 4As shown, the mounting assembly 2 comprises a mounting frame 21 fixedly connected with the protective shell 1, the opposite two side walls of the mounting frame 21 are each provided with a sliding groove, a sliding block 22 is slidably connected in the sliding groove, two fixing rods 23 are fixedly connected between the two sliding blocks 22, a mounting plate 24 is slidably connected on the fixing rod 23, the protective inner shell 3 is fixedly connected with the mounting plate 24, a second spring 25 is fixedly connected between the mounting plate 24 and the sliding block 22, a third spring 26 is fixedly connected between the sliding block 22 and the mounting frame 21, the box cover 9 is fixedly connected on the upper end of the protective shell 1, the handle 10 is fixedly connected on the upper surface of the box cover 9, the protective inner shell 3 is mounted on the mounting plate 24 and can move horizontally on the mounting frame 21, when an impact force pushes the protective inner shell 3 through the heat-conducting rubber column 7 and the heat-conducting plate 8, the protective inner shell 3 slides on the mounting frame 21 to avoid the impact, the second spring 25 or the third spring 26 is compressed to buffer the impact, then the second spring 25 or the third spring 26 can push the mounting plate 24 to reset, thereby reducing the damage to the protective inner shell 3 and the lithium battery pack.

[0029] Working principle: The lithium battery pack is externally provided with the protective shell 1 and the protective inner shell 3, which provides protection for the lithium battery pack through double-layer protection, when the impact force impacts on the protective plate 42, first contacts the elastic buffer pad 5, the elastic buffer pad 5 deforms to first buffer and weaken the impact force, then when the impact force impacts the protective plate 42 to move, the protective plate 42 pushes the circular rod 44 to slide on the vertical plate 43, compresses the elastic conical tube 6 in the middle to deform, further buffers the impact force, compresses the first spring 45 to store energy when moving, continuously weakens the impact force on the protective plate 42, when the impact force pushes the protective inner shell 3 through the heat-conducting rubber column 7 and the heat-conducting plate 8, the protective inner shell 3 slides on the mounting frame 21 to avoid the impact, the second spring 25 or the third spring 26 is compressed to buffer the impact, then the second spring 25 or the third spring 26 can push the mounting plate 24 to reset, the heat-conducting plate 8 conducts the heat on the protective inner shell 3 to the outside through the heat-conducting rubber column 7, and the elastic buffer pad 5 performs heat dissipation treatment.

[0030] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly describes the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.

[0031] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A multi-layer protected lithium battery pack, characterized in that, Including the protective shell (1), the installation assembly (2) is arranged in the protective shell (1), the protective inner shell (3) is arranged on the installation assembly (2), the lithium battery is installed in the protective inner shell (3), the protective shell (1) four sides are equipped with square through slot, and the protective buffer assembly (4) is arranged in the square through slot.

2. The multi-layer protected lithium battery pack of claim 1, wherein, The protective buffer assembly (4) includes a fixed frame (41), the fixed frame (41) is located in the square through slot, the fixed frame (41) is fixedly connected with the protective shell (1), the protective plate (42) is slidably connected in the fixed frame (41), the vertical plate (43) is fixedly connected in the protective shell (1), three circular rods (44) are fixedly connected on the side of the protective plate (42) towards the vertical plate (43), all the circular rods (44) penetrate through the vertical plate (43) and are slidably connected with the vertical plate (43), and the first spring (45) is fixedly connected between the vertical plate (43) and the protective plate (42).

3. The multi-layer protected lithium battery pack of claim 2, wherein, The side of the protective plate (42) is provided with a square groove, and the elastic buffer pad (5) is fixedly connected in the square groove.

4. The multi-layer protected lithium battery pack of claim 2, wherein, The outer side of all the circular rods (44) is fixedly connected with the elastic conical tube (6), and the elastic conical tube (6) is located between the vertical plate (43) and the protective plate (42).

5. The multi-layer protected lithium battery pack of claim 3, wherein, The side of the circular rod (44) is provided with a circular through hole, the circular through hole is communicated with the square groove, one side of the elastic buffer pad (5) is fixedly connected with the heat-conducting rubber column (7), the heat-conducting rubber column (7) penetrates through the circular rod (44) and is slidably connected with the circular rod (44), one side of the heat-conducting rubber column (7) is fixedly connected with the heat-conducting plate (8), the heat-conducting plate (8) is in contact with the protective inner shell (3), and the material of the elastic buffer pad (5) is heat-conducting rubber.

6. The multi-layer protected lithium battery pack of claim 1, wherein, The installation assembly (2) includes an installation frame (21), the installation frame (21) is fixedly connected with the protective shell (1), the opposite two side walls of the installation frame (21) are provided with sliding grooves, the sliding grooves are slidably connected with sliding blocks (22), two fixed rods (23) are fixedly connected between the two sliding blocks (22), the mounting plate (24) is slidably connected on the fixed rod (23), the protective inner shell (3) is fixedly connected with the mounting plate (24), the second spring (25) is fixedly connected between the mounting plate (24) and the sliding block (22), and the third spring (26) is fixedly connected between the sliding block (22) and the installation frame (21).

7. The multi-layer protected lithium battery pack of claim 1, wherein, The box cover (9) is fixedly connected to the upper end of the protective shell (1), and the handle (10) is fixedly connected to the upper surface of the box cover (9).

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