Battery Module

Abstract

The battery module according to the present invention includes a plurality of battery assemblies and a flexible rod. Each battery assembly includes a frame and at least one battery unit, and the battery unit is disposed in the frame. The flexible rod passes through the battery assemblies in sequence, and the battery assemblies jointly form a bending structure by bending the flexible rod.

Description

[Technical field]

[0001] The present invention relates to a battery module, and more particularly to a battery module including a plurality of battery assemblies.

[0002] This application claims priority to Korean Patent Application No. 10-2022-0167628 filed on December 5, 2022, the entire contents of which are incorporated herein by reference in their entirety in the specification and drawings. [Background technology]

[0003] A battery module for an electric bicycle is generally arranged on the lower tube of a bicycle frame. The battery module includes a number of battery assemblies connected in series, and fixing spokes pass through the battery assemblies in series to fix them to each other, and the battery assemblies are arranged in series along the lower tube of the frame. However, the battery assemblies are limited by the fixing spokes and can only be arranged in a straight line, so that they can only be used on a straight lower tube, limiting the versatility of the battery module. Summary of the Invention [Problem to be solved by the invention]

[0004] An object of the present invention is to provide a battery module having good versatility. [Means for solving the problem]

[0005] The battery module according to the present invention includes a plurality of battery assemblies and a flexible rod. Each battery assembly includes a frame and at least one battery unit, the battery unit being disposed within the frame. The flexible rod passes through the battery assemblies in turn, and the battery assemblies jointly form a curved structure by bending the flexible rod.

[0006] In one embodiment of the invention, the frame includes a through hole, and the flexible rod passes through the through hole.

[0007] In one embodiment of the present invention, the battery module further includes at least one conductive elastic piece, which connects between one of the battery assemblies and another of the battery assemblies.

[0008] In one embodiment of the present invention, the battery assemblies are connected to each other in sequence.

[0009] In one embodiment of the invention, the material of the flexible rod comprises metal.

[0010] In one embodiment of the invention, the flexible rod is a coiled tube.

[0011] The battery module may further include a conductive elastic piece connected between two adjacent battery assemblies to electrically connect a battery unit of each battery assembly to a battery unit of another adjacent battery assembly.

[0012] At this time, the conductive elastic piece may be deformed due to bending of the battery module.

[0013] In addition, the battery module may include an upper battery unit and a lower battery unit, the upper battery unit may be electrically connected to the lower battery unit via a conductive sheet, and the flexible rod may pass between the upper battery unit and the lower battery unit.

[0014] The battery assembly may include a pivot joint, and the plurality of battery assemblies may be connected to one another in sequence via the pivot joint. Effect of the Invention

[0015] As described above, in the battery module according to the present invention, a plurality of battery assemblies are connected to each other via flexible rods, and a user can adjust the battery module into a bent shape by bending the flexible rods, thereby enabling it to be installed on lower tubes of bicycle frames having various curvatures. [Brief description of the drawings]

[0016] [Figure 1] 2 is an exemplary side view of a battery module according to an embodiment of the present invention; FIG. [Diagram 2] FIG. 2 is a diagram showing bending of the battery module of FIG. 1; [Diagram 3] FIG. 2 is a cross-sectional view showing the battery module of FIG. 1. [Figure 4] 3 is a diagram showing the battery module of FIG. 2 mounted on a bicycle frame. [Diagram 5] FIG. 2 is a diagram showing a local structure of the battery module of FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Fig. 1 is an exemplary side view of a battery module according to an embodiment of the present invention, Fig. 2 is a diagram showing bending of the battery module of Fig. 1, and Fig. 3 is a cross-sectional view showing the battery module of Fig. 1.

[0018] 1 to 3, a battery module 100 according to the present embodiment includes a plurality of battery assemblies 110 and a flexible rod 120. Each battery assembly 110 includes a frame 112 and a plurality of battery units 114, and the battery units 114 are disposed within the frame 112. FIGS. 1 to 3 exemplarily illustrate the frame 112, and the frame 112 may actually only locally cover the battery units 114. The flexible rod 120 in turn penetrates the frame 112 of the battery assembly 110, and the battery assembly 110 may jointly configure a bending structure by bending the flexible rod 120, as shown in FIG. 2.

[0019] FIG. 4 shows that the battery module 100 of FIG. 2 is installed on a bicycle frame 50. As described above, in the battery module 100 according to this embodiment, the multiple battery assemblies 110 are connected to each other via the flexible rods 120, allowing a user to adjust the battery module 100 to a bent shape by bending the flexible rods 120, so that the battery module 100 is installed on the bent lower tube 52 of the bicycle frame 50 shown in FIG. 4. The user adjusts the battery module 100 to have different curvatures by bending the flexible rods 120, so that the battery module 100 is installed on the lower tube 52 of the bicycle frame 50 having different curvatures. Thus, the battery module 100 according to this embodiment has good versatility.

[0020] 3, in this embodiment, the frame 112 has a through hole 112a, and the flexible rod 120 passes through the through hole 112a of each frame 112 in turn. The material of the flexible rod 120 according to this embodiment includes metal. Specifically, the flexible rod 120 may be a coil tube.

[0021] As shown in FIG. 1, the battery module 100 according to the present embodiment includes a plurality of conductive elastic pieces 130 and a conductive sheet 130'. Each conductive elastic piece 130 is connected between two adjacent battery assemblies 110, and the battery unit 114 of each battery assembly 110 is electrically connected to the battery unit 114 of the other adjacent battery assembly 110 through the conductive elastic piece 130, and each conductive elastic piece 130 may be deformed by bending the battery module 100. In addition, in the rightmost battery assembly 110 shown in FIG. 1, the upper battery unit 114 is electrically connected to the lower battery unit 114 through the conductive sheet 130'. A flexible rod 120 may pass between the upper battery unit 114 and the lower battery unit 114.

[0022] Also, in the leftmost battery assembly 110 shown in FIG. 1, the upper battery unit 114 and the lower battery unit 114 are electrically connected to a battery management system (Battery Management System, 140). Thus, the battery units 114 are connected to each other in a serial connection manner and connected to the battery management system 140. Although FIG. 1 and FIG. 2 only exemplarily show that the battery units 114 are electrically connected to each other through the conductive elastic piece 130, in reality, the conductive elastic piece 130 can be appropriately extended to directly contact the battery unit 114, or a conductive structure can be provided between the conductive elastic piece 130 and the battery unit 114 to connect the conductive elastic piece 130 and the battery unit 114 to each other. In this embodiment, the conductive elastic piece 130 can be connected between the two battery assemblies 110 by a method such as screw locking, riveting, snapping, etc., or can be connected between the two battery assemblies 110 by other suitable methods, but the present invention is not limited thereto.

[0023] In this embodiment, as shown in Fig. 1, each battery assembly 110 includes a pivot joint (1101), and the battery assemblies 110 are connected to each other in turn through the pivot joint 1101. The pivot joint 1101 in Fig. 1 is shown by way of example and will be described in detail below.

[0024] Fig. 5 is a diagram showing a local structure of the battery module according to Fig. 1. Referring to Fig. 5, the pivot joint 1101 of each battery assembly 110, for example, extends from the frame 112 and connects to the pivot joint 1101 of another battery assembly 110. The pivot joint 1101 and the other pivot joint 1101 can be connected to each other, for example, via a pivot shaft or in any other suitable manner, but the present invention is not limited thereto.

[0025] As described above, in the battery module according to the present invention, multiple battery assemblies are connected to each other via flexible rods, and a user can adjust the battery module into a bent shape by bending the flexible rods, thereby enabling the battery module to be installed on lower tubes of bicycle frames having various curvatures. [Explanation of symbols]

[0026] 50: Frame 52: Lower tube 100: Battery module 110: Battery assembly 1101: Pivot joint 112: Frame 112a: Through hole 114: Battery unit 120: Flexible rod 130: Conductive elastic piece 130': Conductive sheet 140: Battery Management System

Claims

1. a plurality of battery assemblies including a frame and at least one battery unit, the at least one battery unit being disposed within the frame; A battery module comprising: a flexible rod passing through the battery assemblies in sequence, the battery assemblies jointly forming a bending structure by bending the flexible rod.

2. The battery module according to claim 1 , wherein the frame has a through hole, and the flexible rod passes through the through hole.

3. 2. The battery module according to claim 1, further comprising at least one conductive elastic piece, the at least one conductive elastic piece being connected between one of the battery assemblies and another of the battery assemblies.

4. The battery module according to claim 1 , wherein the battery assemblies are connected to each other in sequence.

5. The battery module according to claim 1 , wherein the material of the flexible rod comprises a metal.

6. The battery module according to claim 1 , wherein the flexible rod is a coil tube.

7. 2. The battery module according to claim 1, further comprising a conductive elastic piece connected between two adjacent battery assemblies, electrically connecting a battery unit of each battery assembly to a battery unit of another adjacent battery assembly.

8. The battery module according to claim 3 or 7, wherein the conductive elastic piece is deformed by bending the battery module.

9. 8. The battery module according to claim 7, wherein the battery module includes an upper battery unit and a lower battery unit, the upper battery unit is electrically connected to the lower battery unit via a conductive sheet, and the flexible rod passes between the upper battery unit and the lower battery unit.

10. The battery module according to claim 1 , wherein the battery assembly includes a pivot joint, and the plurality of battery assemblies are connected to each other in sequence via the pivot joint.

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