Storage battery for electric vehicle

Through the design of the battery casing barrel with soft rubber material and the built-in battery pad, combined with the forced heat dissipation of the fan barrel and the electric fan, the problem of poor heat dissipation effect of electric vehicle batteries in high temperature environments is solved, and effective temperature management and safety improvement is achieved.

CN223181257UActive Publication Date: 2025-08-01WUXI DAYANG ELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202421962553.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2025-08-01
Estimated Expiration
2034-08-14

AI Technical Summary

Technical Problem

Electric vehicle batteries have poor heat dissipation effects in high temperature environments, which can easily lead to spontaneous combustion and damage to the lives and property of the electric vehicle and its surrounding areas.

Method used

A battery casing cylinder is designed to use soft rubber material, and a battery pad is installed inside to increase the spacing. It is equipped with a fan barrel and an electric fan for forced heat dissipation. The case cover plate is connected to the power interface. The fan barrel realizes internal ventilation and heat dissipation through the inlet and outlet air holes.

Benefits of technology

It improves the heat dissipation performance of the battery, reduces the battery surface temperature, prevents spontaneous combustion, and extends the service life of the battery.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223181257U_ABST
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Abstract

The utility model discloses a storage battery for an electric vehicle, which relates to the technical field of electric vehicles and comprises a storage battery shell cylinder, the storage battery shell cylinder is of a cylindrical structure and is made of a soft rubber material, a storage battery is mounted in the storage battery shell cylinder, and a shell cover plate is mounted at the top end of the storage battery shell cylinder. The air outlet hole communicated with the interior of the fan cylinder is formed in the bottom of the inner wall of the storage battery shell cylinder, and the electric fan sucks air at the bottom of the electric vehicle through the air inlet hole during working and blows the air into the storage battery shell cylinder through the air inlet hole; air exchange and heat dissipation are carried out through the vent holes in the storage battery shell barrel and the distance between every two adjacent batteries, and finally hot air is exhausted from the exhaust holes in the top of the top supporting plate, so that the heat dissipation performance of each storage battery in the storage battery shell barrel is improved, and the surface temperature of the batteries during working is effectively reduced.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and particularly relates to a storage battery for an electric vehicle. Background Art

[0002] An electric vehicle, whose full name is an electric bicycle, refers to a bicycle that uses a storage battery as an auxiliary energy source. Compared with a traditional pedal bicycle, a series of improvements have been made in terms of appearance, structure, and usage functions, and is equipped with an electrical system such as a battery, a motor, and a controller.

[0003] The storage battery is an important component of an electric vehicle, and its performance directly affects the endurance and overall performance of the electric vehicle. Currently, the common storage batteries for electric vehicles on the market mainly include lead-acid batteries, nickel-metal hydride batteries, and lithium-ion batteries. When the voltage of a single battery cannot meet the needs of the electric vehicle, multiple storage batteries can be connected in series to increase the total supply voltage. Therefore, connecting multiple storage batteries in series is a common circuit connection method for electric vehicles.

[0004] Currently, in practical applications, in order to ensure the safety and reliability of the battery pack, multiple batteries are usually placed in a housing for storing the storage battery, and certain circuit designs are carried out in the housing, and the series-connected batteries are balanced so that each battery can work in the best state.

[0005] Currently, during the use of the storage battery of an electric vehicle, especially in summer when the temperature is high, the storage battery is placed at the bottom of the electric vehicle with poor heat dissipation effect. Multiple storage batteries are placed inside the housing of the storage battery, resulting in a high surface temperature and easy heat accumulation. Poor heat dissipation of the storage battery easily causes the battery to catch fire, thereby causing damage to the electric vehicle and the life and property around the electric vehicle. Content of the Utility Model

[0006] In view of this, the purpose of the present utility model is to provide a storage battery for an electric vehicle to solve the technical problem that currently, during the use of the storage battery of an electric vehicle, especially in summer when the temperature is high, the storage battery is placed at the bottom of the electric vehicle with poor heat dissipation effect. Multiple storage batteries are placed inside the housing of the storage battery, resulting in a high surface temperature and easy heat accumulation. Poor heat dissipation of the storage battery easily causes the battery to catch fire, thereby causing damage to the electric vehicle and the life and property around the electric vehicle.

[0007] To achieve the above purpose, the present utility model is realized through the following technical solutions:

[0008] An electric vehicle battery includes a battery outer shell cylinder, which is set as a cylindrical structure. The battery outer shell cylinder is made of soft rubber material. Inside the battery outer shell cylinder is installed a battery. At the top of the battery outer shell cylinder is installed an outer shell cover plate. At the top of the outer shell cover plate, near the edge of the outer shell cover plate, several locking screws are installed. The outer shell cover plate is locked and fixed to the top of the battery outer shell cylinder by the locking screws. At the top of the outer shell cover plate is installed a power interface. At the bottom of the power interface is provided a series cable. On the surface of the series cable are provided a plurality of connectors connected to each battery.

[0009] As a preferred technical solution of the present invention, between two adjacent batteries inside the battery outer shell cylinder, there is provided a battery cushion block, and the battery cushion block and the battery outer shell cylinder are set as an integral structure.

[0010] As a preferred technical solution of the present invention, a carrying rope is provided on the outer wall of the battery outer shell cylinder.

[0011] As a preferred technical solution of the present invention, at the bottom of the battery outer shell cylinder is provided a fan cylinder. At the bottom of the fan cylinder is provided a fixed base. On the surface of the fan cylinder, air inlet holes are arranged at equal circumferential intervals. Inside the fan cylinder is installed an electric fan. At the bottom of the inner wall of the battery outer shell cylinder, there are provided air outlet holes communicating with the inside of the fan cylinder.

[0012] As a preferred technical solution of the present invention, ventilation holes are reserved in the middle between two adjacent battery cushion blocks inside the battery outer shell cylinder.

[0013] As a preferred technical solution of the present invention, a hinge support is fixed at the top of the outer shell cover plate, and a carrying handle is rotatably connected to the hinge support.

[0014] As a preferred technical solution of the present invention, at the top of the carrying handle is provided a handle rod, and the handle rod is of a round rod structure.

[0015] As a preferred technical solution of the present invention, a top support plate is fixedly installed at the top of the outer shell cover plate. In the middle of the top support plate is provided an exhaust hole communicating with the inside of the battery outer shell cylinder. On the surface of the top support plate are installed locking bolts, and the top support plate is locked and fixed to the top of the outer shell cover plate by the locking bolts.

[0016] As a preferred technical solution of the present invention, a dust-proof net is fixed on the surface of the exhaust hole.

[0017] The battery shell cylinder of the utility model is set as a cylindrical structure, which is suitable for the special battery slots of some electric vehicles. The appearance and structure of the battery shell cylinder are novel. The outer wall of the battery shell cylinder is provided with a positioning card groove, which is convenient for installing and positioning the battery shell cylinder, and effectively makes the battery shell cylinder more firmly placed in the special battery slot of the electric vehicle without shaking. The interior of the battery shell cylinder is equipped with multiple batteries, which are convenient for series connection to achieve increased battery working performance. The top of the battery shell cylinder is installed with a shell cover plate, which protects the batteries inside the battery shell cylinder. The top of the shell cover plate is installed with a plurality of locking screws near the edge of the shell cover plate. The shell cover plate is tightened by The locking screw is locked and fixed to the top of the battery shell; the connection firmness of the shell cover is improved. The top of the shell cover is installed with a power interface for easy connection to the power line of the electric vehicle. A series cable is provided at the bottom of the power interface. The surface of the series cable is provided with multiple connectors connected to each battery. The series cable is designed as an internal circuit of the electric vehicle, which can enable multiple batteries in the battery shell to work in series. A battery pad is provided between two adjacent batteries in the battery shell to increase the distance between the two adjacent batteries and enhance the surface heat dissipation performance of each battery. The battery pad and the battery shell are configured as an integrated structure. The battery shell is made of soft rubber material, which makes it easier to place the battery in the battery shell or remove it from the battery shell. The battery can be removed from the battery shell by simply pulling the battery pad to deform the battery pad and the battery shell. The rubber material battery shell is corrosion-resistant and high-temperature-resistant, thereby protecting the battery for a longer life.

[0018] The utility model provides a fan tube at the bottom of the battery shell tube, and the bottom of the fan tube is provided with a fixed base. The fixed base is convenient for supporting the entire battery shell tube, and the outer diameter of the fixed base is smaller than the diameter of the battery shell tube. The bottom of the special battery slot of the electric vehicle is exposed at the bottom of the electric vehicle, and a metal bracket is provided at the bottom of the special battery slot of the electric vehicle to support the fixed base. The surface of the fan tube is provided with air inlet holes at equal intervals around the circumference, and an electric fan is installed inside the fan tube. The bottom of the inner wall of the battery shell tube is provided with air outlet holes connected to the inside of the fan tube. When the electric fan is working, it draws air from the bottom of the electric vehicle through the air inlet holes, and blows it to the inside of the battery shell tube through the air inlet holes. Ventilation and heat dissipation are carried out through the air vents inside the battery shell tube and the distance between two adjacent batteries, and finally the hot air is discharged from the exhaust holes on the top of the top support plate, thereby improving the heat dissipation performance of each battery inside the battery shell tube and effectively reducing the surface temperature of the battery when working.

[0019] Other advantages, objects, and features of the present utility model will be described to some extent in the subsequent description, and to some extent, will be apparent to those skilled in the art based on the examination and research of the following text, or can be learned from the practice of the present utility model. The objects and other advantages of the present utility model can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the external structure of the battery for an electric vehicle of the present utility model;

[0021] Figure 2 is a schematic diagram of the front view sectional structure of the battery for an electric vehicle of the present utility model;

[0022] Figure 3 is a partial enlarged view of part A in the appendix of the specification of the present utility model; Figure 2 of the present utility model;

[0023] Figure 4 is a schematic diagram of the top view sectional structure of the battery housing cylinder of the present utility model;

[0024] Figure 5 is a schematic diagram of the top view sectional structure of the fan cylinder of the present utility model;

[0025] In the figure: battery housing cylinder 1, positioning card slot 2, fan cylinder 3, air inlet hole 4, fixed base 5, locking screw 6, power interface 7, carrying rope 8, housing cover plate 9, handle rod 10, carrying handle 11, exhaust hole 12, dust-proof net 13, top support plate 14, hinge support 15, locking bolt 16, ventilation hole 17, battery cushion block 18, air outlet hole 19, series cable 20, battery 21, connector 22, ventilation cavity 23, electric fan 24. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model that is required to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0028] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] In the above description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "one side" and "the other side" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] In addition, terms such as "identical" do not mean that the components are absolutely identical, but there can be slight differences. The term "perpendicular" only means that the positional relationship between components is more perpendicular relative to "parallel", and does not mean that the structure must be completely perpendicular, but can be slightly inclined. Embodiment 1

[0031] Please refer to Figures 1-5 , a technical solution provided by the present utility model: a storage battery for an electric vehicle, including a storage battery outer shell cylinder 1. The storage battery outer shell cylinder 1 is set as a cylindrical structure. The storage battery outer shell cylinder 1 is made of soft rubber material. A storage battery 21 is installed inside the storage battery outer shell cylinder 1. An outer shell cover plate 9 is installed at the top of the storage battery outer shell cylinder 1. A plurality of locking screws 6 are installed at the top of the outer shell cover plate 9 near the edge of the outer shell cover plate 9. The outer shell cover plate 9 is locked and fixed to the top of the storage battery outer shell cylinder 1 through the locking screws 6. A power interface 7 is installed at the top of the outer shell cover plate 9. A series cable 20 is arranged at the bottom of the power interface 7. A plurality of connectors 22 connected to each storage battery 21 are arranged on the surface of the series cable 20.

[0032] The battery housing cylinder 1 of the present utility model is set as a cylindrical structure, which is suitable for the special battery slot of some electric vehicle models. The appearance structure of the battery housing cylinder 1 is novel. The outer wall of the battery housing cylinder 1 is provided with a positioning card slot 2, which is convenient for installing and positioning the battery housing cylinder 1, effectively making the battery housing cylinder 1 more firmly placed in the special battery slot of the electric vehicle without shaking. Inside the battery housing cylinder 1, there are multiple storage batteries 21, which are convenient for series connection to improve the working performance of the battery. At the top of the battery housing cylinder 1, there is an outer shell cover plate 9, which plays a role in protecting the storage batteries 21 inside the battery housing cylinder 1. At the top of the outer shell cover plate 9 and near the edge of the outer shell cover plate 9, there are several locking screws 6, and the outer shell cover plate 9 is locked and fixed to the top of the battery housing cylinder 1 through the locking screws 6, improving the connection firmness of the outer shell cover plate 9. At the top of the outer shell cover plate 9, there is a power interface 7, which is convenient for connecting with the power cord of the electric vehicle. At the bottom of the power interface 7, there is a series cable 20, and the surface of the series cable 20 is provided with multiple connectors 22 connected to each storage battery 21. The series cable 20 is designed for the internal circuit of the electric vehicle, enabling the multiple storage batteries 21 inside the battery housing cylinder 1 to work in series. Between two adjacent storage batteries 21 inside the battery housing cylinder 1, there is a battery spacer 18, which increases the distance between two adjacent storage batteries 21 and enhances the surface heat dissipation performance of each storage battery 21. The battery spacer 18 and the battery housing cylinder 1 are set as an integrated structure. The battery housing cylinder 1 is made of soft rubber material, which is convenient for placing the storage battery 21 in or removing it from the battery housing cylinder 1. Only by pulling the battery spacer 18 to deform the battery spacer 18 and the battery housing cylinder 1 can the storage battery 21 be removed from the battery housing cylinder 1. The rubber material battery housing cylinder 1 is corrosion-resistant and high-temperature-resistant, thus being able to protect the storage battery 21 for a longer life.

[0033] Between two adjacent storage batteries 21 inside the battery housing cylinder 1, there is a battery spacer 18, and the battery spacer 18 and the battery housing cylinder 1 are set as an integrated structure.

[0034] On the outer wall of the battery housing cylinder 1 of the present utility model, there is a lifting rope 8. Through the lifting rope 8, it is convenient to install and disassemble the battery housing cylinder 1 in the special battery slot of the electric vehicle. The lifting rope 8 is a nylon woven cloth strip, which is small in volume and light in structure and does not take up space when not in use. Embodiment 2

[0035] Please refer to Figures 1-5 , which is another technical solution provided by the present utility model. This embodiment has the same parts as the above Embodiment 1, and the same parts will not be elaborated in this embodiment. The specific differences are as follows:

[0036] A storage battery for an electric vehicle, comprising a storage battery outer shell cylinder 1. The storage battery outer shell cylinder 1 is set as a cylindrical structure. The storage battery outer shell cylinder 1 is made of soft rubber material. Inside the storage battery outer shell cylinder 1 is installed a storage battery 21. At the top of the storage battery outer shell cylinder 1 is installed an outer shell cover plate 9. Near the edge of the outer shell cover plate 9 at the top of the outer shell cover plate 9 are installed several locking screws 6. The outer shell cover plate 9 is locked and fixed to the top of the storage battery outer shell cylinder 1 through the locking screws 6. At the top of the outer shell cover plate 9 is installed a power interface 7. At the bottom of the power interface 7 is arranged a series cable 20. On the surface of the series cable 20 are arranged a plurality of connectors 22 connected to each storage battery 21.

[0037] In the storage battery of the present utility model, the storage battery outer shell cylinder 1 is set as a cylindrical structure, which is suitable for the special battery slots of some electric vehicle models. The appearance structure of the storage battery outer shell cylinder 1 is novel. On the outer wall of the storage battery outer shell cylinder 1 is provided a positioning slot 2, which is convenient for installing and positioning the storage battery outer shell cylinder 1, effectively making the storage battery outer shell cylinder 1 more firmly placed in the special battery slot of the electric vehicle without shaking. Inside the storage battery outer shell cylinder 1 are installed multiple storage batteries 21, which is convenient for series connection to improve the working performance of the battery. At the top of the storage battery outer shell cylinder 1 is installed an outer shell cover plate 9, which plays a role in protecting the storage battery 21 inside the storage battery outer shell cylinder 1. Near the edge of the outer shell cover plate 9 at the top of the outer shell cover plate 9 are installed several locking screws 6. The outer shell cover plate 9 is locked and fixed to the top of the storage battery outer shell cylinder 1 through the locking screws 6, improving the connection firmness of the outer shell cover plate 9. At the top of the outer shell cover plate 9 is installed a power interface 7, which is convenient for connecting to the power cord of the electric vehicle. At the bottom of the power interface 7 is arranged a series cable 20. On the surface of the series cable 20 are arranged a plurality of connectors 22 connected to each storage battery 21. The series cable 20 is designed for the internal circuit of the electric vehicle, enabling the multiple storage batteries 21 inside the storage battery outer shell cylinder 1 to work in series. Between two adjacent storage batteries 21 inside the storage battery outer shell cylinder 1 is provided a battery spacer 18, increasing the distance between two adjacent storage batteries 21 and enhancing the surface heat dissipation performance of each storage battery 21. The battery spacer 18 and the storage battery outer shell cylinder 1 are set as an integral structure. The storage battery outer shell cylinder 1 is made of soft rubber material, which is convenient for placing the storage battery 21 in or removing it from the storage battery outer shell cylinder 1. Only by pulling the battery spacer 18 to deform the battery spacer 18 and the storage battery outer shell cylinder 1 can the storage battery 21 be removed from the storage battery outer shell cylinder 1. The rubber material of the storage battery outer shell cylinder 1 is corrosion-resistant and high-temperature-resistant, thus being able to provide protection for the storage battery 21 for a longer life.

[0038] At the bottom of the storage battery outer shell cylinder 1 is provided a fan cylinder 3. At the bottom of the fan cylinder 3 is provided a fixed base 5. On the surface of the fan cylinder 3 are evenly spaced circularly arranged air inlet holes 4. Inside the fan cylinder 3 is installed an electric fan 24. At the bottom of the inner wall of the storage battery outer shell cylinder 1 is provided an air outlet hole 19 communicating with the inside of the fan cylinder 3.

[0039] There is a ventilation hole 17 reserved in the middle of the interior of the battery case cylinder 1 between two adjacent battery pads 18.

[0040] At the bottom of the battery case cylinder 1 of the present utility model, there is a fan cylinder 3. At the bottom of the fan cylinder 3, there is a fixed base 5. The fixed base 5 is convenient for supporting the entire battery case cylinder 1. The outer diameter of the fixed base 5 is smaller than the diameter of the battery case cylinder 1. The bottom of the special battery slot of the electric vehicle is exposed at the bottom of the electric vehicle. At the bottom of the special battery slot of the electric vehicle, there is a metal bracket to hold the fixed base 5. On the surface of the fan cylinder 3, air inlet holes 4 are arranged at equal intervals in the circumferential direction. Inside the fan cylinder 3, there is an electric fan 24. At the bottom of the inner wall of the battery case cylinder 1, there is an air outlet hole 19 communicating with the inside of the fan cylinder 3. When the electric fan 24 works, it sucks in the air at the bottom of the electric vehicle through the air inlet holes 4 and blows it into the interior of the battery case cylinder 1. It exchanges air and dissipates heat through the ventilation holes 17 inside the battery case cylinder 1 and the space between two adjacent batteries, and finally discharges the hot air from the exhaust hole 12 at the top of the top support plate 14, thereby improving the heat dissipation performance of each battery 21 inside the battery case cylinder 1 and effectively reducing the surface temperature of the battery during operation.

[0041] At the top end of the outer shell cover plate 9, there is a hinge support 15 fixed. A handgrip 11 is rotatably connected to the hinge support 15.

[0042] At the top end of the handgrip 11, there is a handle rod 10. The handle rod 10 is of a round rod structure.

[0043] At the top end of the outer shell cover plate 9 of the present utility model, there is a hinge support 15 fixed. A handgrip 11 is rotatably connected to the hinge support 15, which is convenient for lifting the outer shell cover plate 9. When the outer shell cover plate 9 is fixed integrally with the battery case cylinder 1, it is convenient for lifting the entire battery case cylinder 1. At the top end of the handgrip 11, there is a handle rod 10. The handle rod 10 is of a round rod structure. It can realize single-handed holding of the handle rod 10, which is convenient for the convenient operation during the installation, placement or maintenance of the battery case cylinder 1.

[0044] At the top end of the outer shell cover plate 9, there is a top support plate 14 fixedly installed. In the middle of the top support plate 14, there is an exhaust hole 12 communicating with the inside of the battery case cylinder 1. On the surface of the top support plate 14, there are locking bolts 16. The top support plate 14 is locked and fixed to the top end of the outer shell cover plate 9 through the locking bolts 16.

[0045] A dust-proof net 13 is fixed on the surface of the exhaust hole 12.

[0046] A top support plate 14 is fixedly installed at the top end of the outer shell cover plate 9. An exhaust hole 12 communicating with the inside of the battery outer shell cylinder 1 is provided in the middle of the top support plate 14. A round hole communicating with the exhaust hole 12 and the inside of the battery outer shell cylinder 1 is also provided at the top end of the outer shell cover plate 9. A locking bolt 16 is installed on the surface of the top support plate 14. The top support plate 14 is locked and fixed to the top end of the outer shell cover plate 9 through the locking bolt 16 to improve the installation firmness of the top support plate 14. A dust-proof net 13 is fixed on the surface of the exhaust hole 12 to effectively prevent dust from entering the inside of the battery outer shell cylinder 1 through the exhaust hole 12.

[0047] In addition, the battery outer shell cylinder in the present utility model is applicable to the special battery slots of some electric vehicles. There are heat dissipation openings inside the battery slots of the electric vehicles. Therefore, the battery outer shell cylinder in the present utility model dissipates heat into the battery slots of the electric vehicles, and the heat is dissipated to the outside through the heat dissipation openings in the battery slots of the electric vehicles.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present utility model, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A storage battery for an electric vehicle, comprising a storage battery outer shell cylinder (1), characterized in that: The battery housing cylinder (1) is set as a cylindrical structure. The battery housing cylinder (1) is made of soft rubber material. A battery (21) is installed inside the battery housing cylinder (1). An outer shell cover plate (9) is installed at the top end of the battery housing cylinder (1). A number of locking screws (6) are installed at the top end of the outer shell cover plate (9) near the edge of the outer shell cover plate (9). The outer shell cover plate (9) is locked and fixed to the top end of the battery housing cylinder (1) through the locking screws (6); A power interface (7) is installed at the top end of the outer shell cover plate (9). A series cable (20) is arranged at the bottom of the power interface (7). A plurality of connectors (22) connected to each battery (21) are arranged on the surface of the series cable (20).

2. The storage battery for an electric vehicle according to claim 1, characterized in that: A battery cushion block (18) is arranged between two adjacent batteries (21) inside the battery housing cylinder (1). The battery cushion block (18) and the battery housing cylinder (1) are set as an integral structure.

3. The storage battery for an electric vehicle according to claim 1, characterized in that: A carrying rope (8) is arranged on the outer wall of the battery housing cylinder (1).

4. The storage battery for an electric vehicle according to claim 1, wherein: A fan cylinder (3) is arranged at the bottom of the battery housing cylinder (1). A fixed base (5) is arranged at the bottom of the fan cylinder (3). Air inlet holes (4) are arranged on the surface of the fan cylinder (3) at equal circumferential intervals. An electric fan (24) is installed inside the fan cylinder (3). An air outlet hole (19) communicating with the inside of the fan cylinder (3) is opened at the bottom of the inner wall of the battery housing cylinder (1).

5. A storage battery for an electric vehicle according to claim 2, characterized in that: An air vent hole (17) is reserved in the middle of the inside of the battery housing cylinder (1) between two adjacent battery cushion blocks (18).

6. The storage battery for an electric vehicle according to claim 1, wherein: A hinge support (15) is fixed at the top end of the outer shell cover plate (9). A carrying handle (11) is rotatably connected to the hinge support (15).

7. An electric vehicle battery according to claim 6, characterized in that: A handle rod (10) is arranged at the top end of the carrying handle (11). The handle rod (10) is of a round rod structure.

8. The storage battery for an electric vehicle according to claim 5, characterized in that: A top support plate (14) is fixedly installed at the top end of the outer shell cover plate (9). An exhaust hole (12) communicating with the inside of the battery housing cylinder (1) is opened in the middle of the top support plate (14). A locking bolt (16) is installed on the surface of the top support plate (14). The top support plate (14) is locked and fixed to the top end of the outer shell cover plate (9) through the locking bolt (16).

9. The storage battery for an electric vehicle according to claim 8, wherein: A dust-proof net (13) is fixed on the surface of the exhaust hole (12).