Flexible telescopic battery cell shell and battery cell

Abstract

The utility model relates to the technical field of battery cell shells, in particular to a flexible telescopic battery cell shell and a battery cell, the flexible telescopic battery cell shell comprises a flexible shell, the flexible shell can be flexibly telescopic along the height direction, the upper end and the lower end of the flexible shell are respectively and fixedly connected with an upper shell and a lower shell, and the upper shell and the lower shell are respectively connected with the flexible shell. The interiors of the upper shell, the flexible shell and the lower shell jointly form an accommodating cavity for accommodating a battery cell, the upper shell and the lower shell are respectively provided with an upper fixed hanging lug and a lower fixed hanging lug, and the upper fixed hanging lug and the lower fixed hanging lug are fixedly connected through a long screw rod. According to the utility model, the battery cell shell is divided into three parts, namely the upper shell, the flexible shell and the lower shell, the middle part of the battery cell shell adopts the flexible shell, the height of the flexible shell can be adjusted within a certain range, the upper shell and the lower shell are fixedly connected through the long screw rod, and the height of the whole shell can be fixed through the long screw rod; the height adjusting device is simple in structure, and the height is very convenient to adjust.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery shell, specifically relates to a flexible telescopic battery shell and battery. BACKGROUND

[0002] The existing passenger car power battery is different from each other, and the battery box is also different. The same car type needs to be distributed and designed. Each different capacity battery needs to be re-molded, re-verified, and re-molded. The verification period is long, the battery shells cannot be compatible, the battery factory R&D period is greatly prolonged, and the manufacturing cost is increased.

[0003] The utility model discloses a height-adjustable variable battery shell, through unlocking locking mechanism, can make the main body lower cover along the main body middle cover height direction up and down sliding, with the main body middle cover's side wall and the main body lower cover's side wall between the coincidence face size of adjusting, can adjust the height of the containing cavity, can make the battery shell suitable for the height demand of different motor vehicle's battery installation space. However, the main body middle cover and the main body lower cover are connected by sliding, and the locking mechanism needs to be set to fix the main body middle cover and the main body lower cover, and the structure is relatively complex. UTILITY MODEL CONTENTS

[0004] The utility model discloses a flexible telescopic battery shell and battery for the defects of prior art, the battery shell is divided into three parts, i. e. upper shell, flexible shell and lower shell, the middle part of the battery shell adopts the flexible shell, the height of the flexible shell can be adjusted within a certain range, the upper shell and the lower shell are fixedly connected through the long screw rod, and the height of the whole shell can be fixed through the long screw rod. The utility model is simple in structure, and the height adjustment is very convenient.

[0005] In order to solve the above technical problems, in the first aspect, the utility model provides a flexible telescopic battery shell, which comprises a flexible shell, the flexible shell can be flexibly telescopic along the height direction, the upper and lower ends of the flexible shell are fixedly connected with an upper shell and a lower shell respectively, the interiors of the upper shell, the flexible shell and the lower shell jointly form a containing cavity for containing a battery, upper fixed lugs and lower fixed lugs are arranged on the upper shell and the lower shell respectively, and the upper fixed lugs and the lower fixed lugs are fixedly connected through a long screw rod.

[0006] In some embodiments, the flexible shell comprises an aluminum plastic film body.

[0007] Further, the flexible shell comprises a plurality of reinforcing ribs, and the reinforcing ribs are arranged along the height direction of the aluminum plastic film body.

[0008] In some embodiments, the lower fixed hanging ear is threadedly connected with the long screw rod, and the upper fixed hanging ear is threadedly connected with the long screw rod or fixedly connected by bolts.

[0009] In some embodiments, a cover plate is included, the cover plate is provided with a cover plate hanging ear, and the long screw rod passes through the cover plate hanging ear to fix the cover plate on the top of the upper housing.

[0010] Further, a sealing groove is formed on the side opposite to the upper housing of the cover plate, and a sealing member is arranged in the sealing groove, which is used to seal between the cover plate and the upper housing.

[0011] Further, the sealing member includes a sealing strip or sealing glue.

[0012] Further, the cover plate is tightly pressed on the top of the upper housing by the bolt at the top end of the long screw rod.

[0013] Further, the aluminum plastic film body is glued between the upper housing and the lower housing.

[0014] In a second aspect, the present application provides a battery cell, which includes the flexible and extendable battery cell housing.

[0015] The present application has the following beneficial effects:

[0016] 1. The battery cell housing is divided into three parts, i.e., the upper housing, the flexible housing, and the lower housing, the middle part of the battery cell housing adopts the flexible housing, the height of the flexible housing can be adjusted within a certain range, the upper housing and the lower housing are fixedly connected by the long screw rod, and the height of the entire housing can be fixed by the long screw rod, the present application has simple structure and is very convenient to adjust the height.

[0017] 2. The flexible housing of the present application includes the aluminum plastic film body and the reinforcing ribs, the aluminum plastic film body is very soft and the shape cannot be fixed after being extruded, the multiple reinforcing ribs are arranged to support, so that the aluminum plastic film body as a whole can be in the shape of a cuboid.

[0018] 3. The cover plate of the present application is provided with a cover plate hanging ear, the cover plate can be directly fixed on the upper housing by the long screw rod, without welding the cover plate with the upper housing, the welding process is saved, and the cover plate can be disassembled and maintained.

[0019] 4. The cover plate of the present application can be sealed by arranging the rubber sealing strip or sealing glue between the cover plate and the upper housing, when the sealing glue is used for sealing, the connection strength between the cover plate and the upper housing can be further enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present application.

[0021] Reference numerals: 1-flexible shell; 11-aluminum plastic film body; 12-reinforcing rib; 2-upper shell; 21-upper fixed ear; 3-lower shell; 31-lower fixed ear; 4-cover plate; 41-cover plate ear. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved in the present application more clear and explicit, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0023] As Figure 1 shown, the utility model provides a kind of flexible telescopic electric core shell, including flexible shell 1, flexible shell 1 can be flexible along height direction, and the upper and lower ends of flexible shell 1 are respectively fixedly connected with upper shell 2 and lower shell 3, and upper shell 2, flexible shell 1, lower shell 3 can be square or cylindrical or other shape, and the inside of upper shell 2, flexible shell 1, lower shell 3 is formed together to accommodate cavity for accommodating electric core, and upper fixed ear 21 and lower fixed ear 31 are respectively arranged on upper shell 2 and lower shell 3, and upper fixed ear 21 is fixedly arranged on the position of the two sides of upper shell 2 close to top by welding, and lower fixed ear 31 is fixedly arranged on the position of the two sides of lower shell 3 close to bottom by welding, and upper fixed ear 21 and lower fixed ear 31 are fixedly connected by long screw, Figure 1 Long screw is not shown in the figure.

[0024] It can be understood that when the height of electric core shell needs to be adjusted, only the height of flexible shell 1 is adjusted, and the relative position of upper shell 2 and lower shell 3 is fixed by long screw, so that the height of the whole electric core shell can be fixed, the adjustment method is simple and efficient, and the structure of the whole electric core shell is also very simple, without the need to repeatedly open electric core shell mold, which is very convenient in design or sample verification of electric core.

[0025] In some embodiments, the flexible shell 1 includes an aluminum plastic film body 11.

[0026] Further, the flexible shell 1 includes a plurality of reinforcing ribs 12 arranged along the height direction of the aluminum plastic film body 11. The reinforcing rib 12 is annular and parallel to the bottom end surface of the lower shell 3. The reinforcing rib 12 can be made of plastic material and can be fixed on the inner wall or outer wall of the aluminum plastic film body 11.

[0027] It can be understood that since the aluminum plastic film body 11 is very soft and the shape cannot be fixed after being squeezed, the plurality of reinforcing ribs 12 are arranged to support the aluminum plastic film body 11 to form a cuboid shape.

[0028] In some embodiments, the lower fixed lug 31 is threadedly connected with the long screw, and the upper fixed lug 21 is threadedly connected with the long screw or fixedly connected with the long screw through a bolt.

[0029] It can be understood that when the upper fixed lug 21 is threadedly connected with the long screw, the height of the upper shell 2 is directly positioned, and then the long screw is passed through the upper fixed lug 21 and the lower fixed lug 31 to fix the upper shell 2 and the lower shell 3; when the upper fixed lug 21 is fixedly connected with the long screw through a bolt, the long screw is first passed from bottom to top through the lower fixed lug 31, a bolt is screwed on the long screw, then the long screw is passed through the upper fixed lug 21, and a bolt is screwed on the long screw, at this time, the upper and lower sides of the upper fixed lug 21 are provided with a bolt respectively, then the height of the upper shell 2 is adjusted, and after the height adjustment of the upper shell 2 is completed, the two bolts are rotated to abut against the upper fixed lug 21, and the upper shell 2 is limited by the two bolts.

[0030] In some embodiments, the cover plate 4 is provided, the cover plate 4 is provided with a cover plate lug 41, and the long screw is passed through the cover plate lug 41 to fix the cover plate 4 on the top of the upper shell 2.

[0031] Since the cover plate 4 is provided with the cover plate lug 41, the cover plate 4 can be directly fixed on the upper shell 2 through the long screw, without welding the cover plate 4 and the upper shell 2, thereby saving the welding process and enabling the cover plate 4 to be disassembled and maintained.

[0032] Further, a sealing groove is formed in the side, opposite to the upper shell 2, of the cover plate 4, and a sealing element is arranged in the sealing groove and used for sealing between the cover plate 4 and the upper shell 2.

[0033] Further, the sealing element comprises a sealing strip or sealing glue.

[0034] The cover plate 4 and the upper shell 2 can be sealed by arranging a rubber sealing strip or applying sealing glue therebetween, and the connection strength between the cover plate 4 and the upper shell 2 can be further enhanced when the sealing glue is applied.

[0035] Further, the cover plate 4 is tightly pressed on the top of the upper shell 2 through the bolt at the top end of the long screw. That is, the long screw is in sliding connection with the cover plate lug 41, and after the upper end of the long screw is passed through the cover plate lug 41, the cover plate 4 can be tightly pressed on the top of the upper shell 2 through the bolt, so as to ensure the sealing between the cover plate 4 and the upper shell 2.

[0036] Further, the aluminum plastic film body 11 is glued between the upper shell 2 and the lower shell 3. The aluminum plastic film body 11 and the upper shell 2 and the lower shell 3 can be glued by ultraviolet curing glue, so as to ensure the firmness and sealing property of the glue.

[0037] The application further provides a battery cell, comprising the flexible and retractable battery cell shell.

[0038] The battery cell shell of the application can be fully and maximally compatible with battery cells of the same size, the height of the battery cell can be adjusted according to the height of the box of the vehicle model, and the battery cell shell is maximally compatible with battery cells of other sizes without mold, and has the advantages of simple structure, convenient adjustment, good compatibility, high efficiency and low cost.

[0039] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalent ones; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A flexible, scalable battery cell housing, characterized by: The flexible shell (1) is flexible in the height direction, and upper and lower ends of the flexible shell (1) are fixedly connected with an upper shell (2) and a lower shell (3) respectively, the inside of the upper shell (2), the flexible shell (1) and the lower shell (3) together form a containing cavity for containing an electric core, and the upper shell (2) and the lower shell (3) are respectively provided with an upper fixed ear (21) and a lower fixed ear (31), and the upper fixed ear (21) and the lower fixed ear (31) are fixedly connected through a long screw rod.

2. The flexible, scalable battery cell housing of claim 1, wherein: The flexible shell (1) comprises an aluminum plastic film body (11).

3. The flexible, scalable battery cell housing of claim 2, wherein: The flexible shell (1) comprises a plurality of reinforcing ribs (12) arranged in the height direction of the aluminum plastic film body (11).

4. The flexible, scalable battery cell housing of any one of claims 1 to 3, wherein: The lower fixed ear (31) is threadedly connected with the long screw rod, and the upper fixed ear (21) is threadedly connected or fixedly connected through a bolt with the long screw rod.

5. The flexible, scalable battery cell housing of any one of claims 1 to 3, wherein: The cover plate (4) is provided with a cover plate ear (41), and the long screw rod passes through the cover plate ear (41) to fix the cover plate (4) on the top of the upper shell (2).

6. The flexible, scalable battery cell housing of claim 5, wherein: A sealing groove is formed on the side of the cover plate (4) opposite to the upper shell (2), and a sealing element is arranged in the sealing groove, which is used to seal the cover plate (4) and the upper shell (2).

7. The flexible, scalable battery cell housing of claim 6, wherein: The sealing element comprises a sealing strip or a sealing glue.

8. The flexible, scalable battery cell housing of claim 5, wherein: The cover plate (4) is tightly pressed on the top of the upper shell (2) through the bolt at the top end of the long screw rod.

9. The flexible, scalable battery cell housing of claim 2, wherein: The aluminum plastic film body (11) is glued with the upper shell (2) and the lower shell (3).

10. An electric cell characterized by: The flexible and stretchable electric core shell comprises the flexible and stretchable electric core shell according to any one of claims 1 to 9.

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