Solid-state battery for power-assisted bicycle

By designing a solid-state battery for electric bicycles, using solid-state cells and a specific connection structure, the problem of insufficient performance of existing lithium-ion batteries is solved, and the safety and energy density are improved, meeting the lightweight requirements of electric bicycles.

CN223514123UActive Publication Date: 2025-11-04TIANJIN HUAHUI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202422627210.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-11-04
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

The lithium-ion and lithium-ion polymer batteries currently used in electric bicycles are inferior to solid-state batteries in terms of safety performance, energy density, and charging speed, and there are no applications of solid-state batteries.

Method used

Design a solid-state battery for electric bicycles, using solid-state cells and connected by a battery box, battery cover, circuit board and power port, to achieve lightweight and improved safety of the battery.

Benefits of technology

This technology improves the safety and reliability of solid-state batteries for electric bicycles, achieving high energy density and meeting lightweight requirements.

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Abstract

A solid-state battery for a power-assisted bicycle is characterized by comprising a battery box, a battery cover and a solid-state battery cell, the solid-state battery cell is installed in an inner cavity of the battery box, the battery cover is installed at an opening in the upper end of the battery box through screws, a groove is formed in one side of the battery box, and a circuit board upper cover is installed at a groove opening of the groove of the battery box through screws. A circuit board is arranged in a groove of the battery box, a power supply female port is formed in the circuit board, a plugging through hole is formed in the center of an upper cover of the circuit board, a solid-state battery cell is arranged in the battery box, and the solid-state battery cell is connected with a circuit board wire arranged in the groove in one side of the battery box. The battery cover is installed at the opening in the upper end of the battery box through screws, the circuit board upper cover is installed at the notch of the groove through screws, the solid-state battery is small in overall size and meets the lightweight requirement of the power-assisted bicycle, the safety performance and the reliability are improved through the solid-state battery cells, and the energy density is high.
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Description

Technical Field

[0001] This utility model relates to the field of solid-state battery technology for electric bicycles, and in particular to a solid-state battery for electric bicycles. Background Technology

[0002] Bicycles, also known as pedal bikes or bicycles, are a green and environmentally friendly mode of transportation. For the elderly and infirm who are physically weak, or when encountering steep uphill sections, using a battery-powered bicycle is a suitable choice. This provides a green, environmentally friendly, and healthy way to travel without requiring too much effort. The battery provides power to the bicycle and also serves as a light source.

[0003] Current power-assisted bicycles generally use lithium-ion batteries and lithium-ion polymer batteries. However, the safety performance, energy density, and charging speed of lithium-ion batteries and lithium-ion polymer batteries are not as good as those of solid-state batteries. However, there are currently no power-assisted bicycles that use solid-state batteries. Therefore, this utility model designs a solid-state battery for power-assisted bicycles. Utility Model Content

[0004] In view of the above-mentioned technical problems, this utility model provides a solid-state battery for electric bicycles, which has a small overall size to meet the lightweight requirements of electric bicycles, and the use of solid-state cells improves safety and reliability.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A solid-state battery for electric bicycles is characterized by comprising a battery box, a battery cover, and solid-state cells. The solid-state cells are installed within the inner cavity of the battery box. The battery cover is screwed onto the upper opening of the battery box. A groove is provided on one side of the battery box, and a circuit board cover is screwed onto the groove opening. A circuit board is installed within the groove of the battery box, and the circuit board has a power female connector. A through hole is provided at the center of the circuit board cover.

[0007] The power female port is equipped with a socket sealing gasket.

[0008] Specifically, the solid-state battery cell is connected to the circuit board via wires.

[0009] Specifically, the power female port is adapted to connect with the power interface, and the power interface is installed on the electric bicycle. After the power interface is connected to the power female port, it provides power to the electric bicycle.

[0010] The beneficial effects of this utility model are:

[0011] This invention installs solid-state battery cells inside a battery box. The solid-state battery cells are connected to circuit board wires installed in a groove on one side of the battery box. The battery cover is installed with screws at the top opening of the battery box, and the circuit board cover is installed with screws at the groove opening. The solid-state battery has a small overall size, which meets the lightweight requirements of electric bicycles. The use of solid-state battery cells improves safety and reliability, as well as energy density. Attached Figure Description

[0012] Figure 1 This is a rear view schematic diagram of the overall structure of a solid-state battery for a power-assisted bicycle according to the present invention;

[0013] Figure 2 This is a front view schematic diagram of the overall structure of a solid-state battery for a power-assisted bicycle according to the present invention.

[0014] Figure 3 This is an exploded structural diagram of a solid-state battery and power interface for a power-assisted bicycle according to the present invention; as shown in the figure: 1. Battery box, 11. Groove, 2. Battery cover, 3. Solid-state battery cell, 4. Power female port, 41. Power interface, 5. Socket sealing gasket, 6. Circuit board cover, 61. Plug-in through hole. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Example 1

[0019] As shown in the figure, a solid-state battery cell 3 is installed inside the battery box 1. A battery cover 2 is screwed onto the upper opening of the battery box 1. A groove 11 is provided on one side of the battery box 1, which is used to install a circuit board. A circuit board cover 6 is screwed onto the groove 11 of the battery box 1.

[0020] The circuit board is connected to the solid-state battery cell 3 inside the battery box 1 via a guide, and a power female port 4 is provided on the circuit board, with a socket sealing gasket 5 provided on the power female port 4.

[0021] A plug-in hole 61 is provided at the center of the circuit board cover 6, so that the power interface 41 extends through the plug-in hole 61 and is adapted to connect with the internal power female port 4, wherein the power interface 41 is installed on the electric bicycle.

[0022] This invention can be installed anywhere on an electric bicycle.

[0023] For example, select the basket position on the electric bicycle, set up the battery installation compartment on the basket, install the solid battery designed in this utility model into the battery installation compartment, and set the power interface 41 on the basket position accordingly. After being adapted and connected to the solid battery, it provides power and assistance to the electric bicycle.

[0024] For example, if the battery is installed on the pedal position of the bicycle frame, a battery mounting compartment and a corresponding power interface 41 can be set at the same position.

[0025] The solid-state battery designed in this invention utilizes the characteristics of solid-state cells 3 to improve safety and reliability, as well as achieve high energy density. In addition, the overall size of the solid-state battery is small, which meets the lightweight requirements of electric bicycles.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A solid-state battery for electric bicycles, characterized in that... The device includes a battery box, a battery cover, and solid-state battery cells. The solid-state battery cells are installed inside the cavity of the battery box. The battery cover is screwed onto the upper opening of the battery box. A groove is provided on one side of the battery box. A circuit board cover is screwed onto the groove of the battery box. A circuit board is installed inside the groove of the battery box. The circuit board is equipped with a power female port. A plug-in through hole is provided at the center of the circuit board cover.

2. A solid-state battery for electric bicycles according to claim 1, characterized in that... The power female port is equipped with a socket sealing gasket.

3. A solid-state battery for electric bicycles according to claim 1, characterized in that... The solid-state battery cell is connected to the circuit board via wires.

4. A solid-state battery for a power-assisted bicycle according to claim 1, characterized in that... The power female port is connected to the power interface adapter.