A battery integrated structure

Abstract

This utility model relates to an integrated battery and seat structure. It includes a seat, a battery outer tube mounted on the rear wall of the seat, a bottom cover with a central wire hole at the lower end of the battery outer tube, a removable top cover installed inside the upper end of the battery outer tube, a fixing block with a central hole at the bottom of the inner cavity of the battery outer tube, and a fitting groove at the top center of the fixing block. A battery module is also housed inside the battery outer tube, with its lower end embedded in the fitting groove of the fixing block. The top cover presses against the upper end of the battery module. It also includes a wiring harness connected to the battery module, which passes through the central hole of the fixing block and exits through the wire hole. This utility model provides an integrated battery and seat structure that better integrates the seat and battery, improves overall structural strength and aesthetic simplicity, does not affect the installation of the seat tube, and simplifies the manufacturing process to reduce manufacturing costs.

Description

Technical Field

[0001] This utility model belongs to the field of electric-assisted bicycle technology, and in particular relates to an integrated structure of seat post and battery. Background Technology

[0002] The seatpost of an e-bike is a tube located in the middle of the frame, used to install and support the saddle tube. The seat assembly is located at the top of the saddle tube. The battery of an e-bike provides power to the drive motor, such as a mid-drive motor or hub motor. Improving the overall structure of e-bikes to achieve a more compact and lightweight design is an important direction for current development. In existing technologies, the seatpost and battery are usually separate components. The battery mounting structure needs to be installed on the seatpost, or, when the battery needs to be integrated with the seatpost, a groove needs to be cut into the seatpost. This not only negatively impacts structural strength but also affects saddle tube installation and makes component processing more complex, increasing manufacturing costs.

[0003] In summary, it is necessary to develop and design an integrated structure for the battery and the mounting tube to solve the aforementioned technical problems. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated structure for the seat tube and battery, which better integrates the seat tube and battery, improves the overall structural strength and appearance simplicity, does not affect the installation of the saddle tube, and simplifies the processing technology to reduce the cost of processing and manufacturing.

[0005] The technical solution adopted by this utility model is as follows: an integrated battery and battery structure, including a battery tube, an outer battery tube on the rear wall of the battery tube, a bottom cover with a wire hole in the middle on the lower end of the outer battery tube, a detachable top cover installed in the upper end of the outer battery tube, a fixing block with a central hole at the bottom of the inner cavity of the outer battery tube and a fitting groove in the middle of the top of the fixing block, a battery module inside the outer battery tube, the lower end of the battery module being embedded in the fitting groove of the fixing block, the top cover pressing on the upper end of the battery module, and a wire harness connected to the battery module, the wire harness passing through the central hole of the fixing block and exiting through the wire hole.

[0006] Preferably, the seat tube and the battery outer tube are made of aluminum alloy, the seat tube has a circular cross-section, and the battery outer tube has a V-shaped cross-section.

[0007] Preferably, the base tube and the outer battery tube are integrally extruded profiles, and the bottom cover is welded to the lower end of the outer battery tube, with the front edge of the bottom cover welded to the base tube.

[0008] Preferably, the battery housing and the battery outer tube are separate profiles, with the front edge of the battery outer tube welded to the housing, and the bottom cover welded to the lower end of the battery outer tube, with the front edge of the bottom cover welded to the housing.

[0009] Preferably, a downwardly extending sleeve is provided inside the top cover, an upper end block is provided on the top of the battery module, the upper end block is embedded in the sleeve of the top cover, and a sealing gasket is provided between the top cover and the upper port of the battery outer tube.

[0010] Preferably, the power connection terminal of the battery module is located at the lower center position, and a wiring terminal is provided at the end of the wire harness and is connected to the power connection terminal of the battery module.

[0011] The advantages and positive effects of this utility model are:

[0012] This invention provides an integrated battery and battery housing structure. The outer battery tube is attached to the rear of the housing, and the battery module is located inside the outer battery tube. Therefore, this integrated structure does not affect the overall structural strength of the housing. Since the outer battery tube is attached to the rear of the housing, it also increases the structural strength of the housing. The battery module is encapsulated inside the outer battery tube, thus receiving good protection against impacts, while also improving the simplicity of the outer tube.

[0013] By placing a fixing block at the bottom of the inner cavity of the battery outer tube and connecting the lower end of the battery module to the fitting groove of the fixing block, a good fixation of the battery module is achieved. The fixing block also acts as a shock absorber, preventing bumps, battery movement, and noise. In this integrated structure, the wiring harness exits through a hole at the bottom and can then enter the frame through a hole on the frame fork tube, facilitating internal wiring. Furthermore, since the battery module is housed inside the battery outer tube, the internal space of the seatpost is unaffected. Therefore, this integrated seatpost and battery structure does not hinder the installation of the seatpost or the height adjustment of the seatpost. In addition, this integrated structure simplifies the manufacturing process and reduces production costs because it eliminates the need for grooving or other machining on the tubing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] In the picture:

[0017] 1. Battery housing; 2. Top cover; 3. Battery outer tube; 4. Bottom cover; 5. Wiring harness; 6. Upper end block; 7. Battery module; 8. Fixing adhesive block; 9. Wiring terminal; 10. Wire hole. Detailed Implementation

[0018] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0019] Please see Figure 1 and Figure 2 The present invention relates to an integrated battery and battery housing structure, comprising a housing 1, wherein an outer battery tube 3 is provided on the rear wall of the housing 1.

[0020] The base tube 1 and the battery outer tube 3 are made of aluminum alloy. The base tube 1 has a circular cross-section, and the battery outer tube 3 has a V-shaped cross-section. The structural form between the base tube 1 and the battery outer tube 3 can be one of the following two:

[0021] The first type is a one-piece extruded profile for the seat tube 1 and the battery outer tube 3. The profile is formed by extrusion using an extruder. During production, the profile segment is first cut according to the design dimensions of the seat tube 1. Then, the upper rear part and lower rear part of the profile segment are milled according to the design dimensions and position of the battery outer tube 3 to remove the excess parts.

[0022] In the second case, the seat tube 1 and the battery outer tube 3 are separate profiles, that is, the seat tube 1 is integrally extruded and the battery outer tube 3 is integrally extruded. The front edge of the battery outer tube 3 is welded to the seat tube 1. During production and processing, the profile is cut into profile segments according to the design dimensions of the seat tube 1 and the battery outer tube 3. Then, the battery outer tube 3 is fastened to the seat tube 1, and continuous welding is performed along the joint to assemble the two together.

[0023] A bottom cover 4 with a wire hole 10 in the middle is provided on the lower port of the battery outer tube 3. The bottom cover 4 is welded to the lower port of the battery outer tube 3 and the front edge of the bottom cover 4 is welded to the seat tube 1. That is, the bottom cover 4 completely closes the lower port of the battery outer tube 3, leaving only the wire hole 10 in the middle for wire threading.

[0024] A fixing block 8 with a central hole is provided at the bottom of the inner cavity of the battery outer tube 3, and a fitting groove is provided at the top center of the fixing block 8. A battery module 7 is also provided inside the battery outer tube 3. The lower end of the battery module 7 is embedded in the fitting groove of the fixing block 8, and the top cover 2 is pressed against the upper end of the battery module 7. A wiring harness 5 connected to the battery module 7 is also included. The wiring harness 5 passes through the central hole of the fixing block 8 and exits downward through the wire hole 10. The battery module 7 includes a cylindrical shell, a battery cell and a circuit board located inside the shell, and a power connection terminal located on the shell. The battery module 7 is an existing component, and its structure will not be described in detail.

[0025] A removable top cover 2 is installed inside the upper port of the battery outer tube 3. The top cover 2 is used to seal the upper port of the battery outer tube 3 to prevent water ingress. The top cover 2 can be an injection molded part. In this embodiment, a downwardly extending sleeve is provided inside the top cover 2, and an upper end block 6 is provided on the top of the battery module 7. The upper end block 6 is embedded in the sleeve of the top cover 2. In this way, the top cover 2 has the function of auxiliary limiting and fixing the upper end of the battery module 7, thereby improving stability. A sealing gasket is provided between the top cover 2 and the upper port of the battery outer tube 3. The sealing gasket can improve the sealing at the upper port and prevent water ingress.

[0026] A tamper-evident structure can be provided for the top cover 2 to prevent it from being opened arbitrarily or falling off under the influence of bumps or other forces. The tamper-evident structure can be a tamper-evident screw. Specifically, a threaded hole can be provided at the rear of the top cover 2, and a threaded hole can be provided at the corresponding position on the upper outer wall of the battery outer tube 3. After the top cover 2 is installed, the tamper-evident screw is screwed into the aforementioned threaded hole.

[0027] In this embodiment, the power connection terminal of the battery module 7 is located at the lower center position, and the wiring terminal 9 is provided at the end of the wire harness 5 and is connected to the power connection terminal of the battery module 7.

[0028] Assembly method:

[0029] Connect the terminal 9 on the wiring harness 5 to the power terminal of the battery module 7. Then, pass the wiring harness 5 through the center hole of the fixing block 8. Finally, the terminal 9 is located in the center hole of the fixing block 8 and the lower end of the battery module 7 is fitted and connected to the fitting groove of the fixing block 8. Then, pass the wiring harness 5 through the wire hole 10 and place the battery module 7 and the fixing block 8 into the inside of the battery outer tube 3 until the bottom of the fixing block 8 contacts the bottom cover 4. Then, install the top cover 2.

Claims

1. A battery holder integrated structure, characterized in that: The device includes a base tube (1), a battery outer tube (3) on the rear wall of the base tube (1), a bottom cover (4) with a wire hole (10) in the middle on the lower end of the battery outer tube (3), a removable top cover (2) installed in the upper end of the battery outer tube (3), a fixing block (8) with a central hole at the bottom of the inner cavity of the battery outer tube (3) and a fitting groove in the middle of the top of the fixing block (8), a battery module (7) inside the battery outer tube (3), the lower end of the battery module (7) being embedded in the fitting groove of the fixing block (8), the top cover (2) pressing on the upper end of the battery module (7), and a wire harness (5) connected to the battery module (7), the wire harness (5) passing through the central hole of the fixing block (8) and exiting through the wire hole (10).

2. The integrated battery holder structure as described in claim 1, characterized in that: The seat tube (1) and the battery outer tube (3) are made of aluminum alloy. The seat tube (1) has a circular cross-section, and the battery outer tube (3) has a V-shaped cross-section.

3. The integrated battery holder structure as described in claim 2, characterized in that: The seat tube (1) and the battery outer tube (3) are integral extruded profiles. The bottom cover (4) is welded and installed on the lower end of the battery outer tube (3), and the front edge of the bottom cover (4) is welded and connected to the seat tube (1).

4. The integrated battery holder structure as described in claim 2, characterized in that: The seat tube (1) and the battery outer tube (3) are separate profiles. The front edge of the battery outer tube (3) is welded to the seat tube (1). The bottom cover (4) is welded to the lower end of the battery outer tube (3) and the front edge of the bottom cover (4) is welded to the seat tube (1).

5. The integrated battery holder structure as described in claim 3 or 4, characterized in that: in The top cover (2) has a downward extending sleeve inside, and an upper end block (6) is provided on the top of the battery module (7). The upper end block (6) is embedded in the sleeve of the top cover (2), and a sealing gasket is provided between the top cover (2) and the upper port of the battery outer tube (3).

6. The integrated battery holder structure as described in claim 3 or 4, characterized in that: The power connection terminal of the battery module (7) is located at the center of the lower end, and the wiring terminal (9) is provided at the end of the wire harness (5) and the wiring terminal (9) is connected to the power connection terminal of the battery module (7).

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