Battery module

Abstract

The present invention relates to a battery module and the battery module comprises: a tube; the positioning component is rotatably arranged in the pipe, comprises at least one positioning part and rotates between a fixed state and a released state relative to the pipe; and at least one battery assembly disposed within the tube and having a groove portion. When the positioning element is in the fixed state, the positioning portion is positioned within the groove portion and prevents the battery assembly from moving in the axial direction of the tube. And when the positioning element is in the release state, the at least one positioning part is separated from the groove part.

Description

Technical Field

[0001] The present disclosure relates to a battery module, and more particularly, to a battery module in which a battery assembly is sheathed in a tube. This application claims priority to Korean Patent Application No. 10-2023-0172722 filed in Korea on December 1, 2023, the disclosure of which is incorporated herein by reference. Background Art

[0002] Typically, electric bicycles are equipped with battery modules to provide power. These modules consist of multiple stacked battery assemblies, housed within a tube. To prevent the battery assemblies from accidentally shifting axially within the tube, they are typically secured with adhesive. This complicates the assembly process and makes rework difficult. Summary of the Invention

[0003] Technical issues

[0004] The present disclosure has been designed to solve the problems of the related art, and thus the present disclosure is directed to providing a battery module capable of stably fixing a battery assembly in a simple manner.

[0005] Technical Solution

[0006] According to one aspect of the present disclosure, a battery module is provided, which includes: a tube; a positioning element, which is rotatably arranged in the tube, has at least one positioning portion, and is configured to rotate relative to the tube between a fixed state and a released state; and at least one battery assembly, which is arranged in the tube and has a groove, wherein when the positioning element is in the fixed state, the at least one positioning portion is positioned in the groove to prevent the at least one battery assembly from moving in the axial direction of the tube.

[0007] In an embodiment of the present disclosure, when the positioning element is in the released state, the at least one positioning portion leaves the groove.

[0008] In an embodiment of the present disclosure, the groove has two opposing inner walls, and when the positioning element is in the fixed state, the at least one positioning portion is located between the two inner walls to stop the two inner walls in the axial direction.

[0009] In an embodiment of the present disclosure, the at least one battery assembly includes a plurality of battery assemblies, wherein the battery assemblies are stacked sequentially in the axial direction, wherein the at least one positioning portion includes a plurality of positioning portions, and the positioning portions are arranged to be spaced apart from each other in the axial direction so as to respectively correspond to the grooves of the battery assemblies.

[0010] In an embodiment of the present disclosure, the positioning element comprises a rotation shaft portion, wherein the rotation shaft portion is configured to rotate relative to the tube along a rotation axis parallel to the axial direction, and wherein the at least one positioning portion is connected to the rotation shaft portion.

[0011] In an embodiment of the present disclosure, the positioning element further includes a connecting portion, and the connecting portion extends from the rotation shaft portion in a direction perpendicular to the rotation axis and is connected to the at least one positioning portion.

[0012] In an embodiment of the present disclosure, the tube has a pivot groove, and wherein the rotation shaft portion is received in the pivot groove to pivot along the rotation axis.

[0013] In an embodiment of the present disclosure, the pivot slot has two stop surfaces, and the two stop surfaces are configured to limit a rotation angle range of the positioning element.

[0014] In an embodiment of the present disclosure, the rotating shaft portion has an operating portion at an end portion of the rotating shaft portion in the axial direction, and the operating portion receives a force to rotate the rotating shaft portion along the rotation axis.

[0015] In an embodiment of the present disclosure, the at least one positioning portion has an arcuate surface, and when the positioning element is in the fixed state, the arcuate surface is guided to the groove.

[0016] In an embodiment of the present disclosure, the positioning element is made of metal.

[0017] Beneficial effects

[0018] In the battery module according to the present disclosure, a positioning element for positioning the battery assembly is further mounted within the tube. The user can simply rotate the positioning element to prevent the battery assembly from moving axially along the tube. Therefore, the battery module according to the present disclosure can stably secure the battery assembly in a simple manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a perspective view of a battery module according to an embodiment of the present disclosure.

[0020] Figure 2 yes Figure 1An exploded view of the battery module is shown.

[0021] Figure 3a and Figure 3b are shown separately Figure 2 Figures showing the released and fixed states of the positioning element on the battery assembly.

[0022] Figure 4a and Figure 4b They are Figure 3a and Figure 3b A plan view of the positioning elements and battery assembly.

[0023] Figure 5a and Figure 5b Along Figure 4a and Figure 4b A cross-sectional view of the battery module taken along line II in FIG.

[0024] Figure 6 yes Figure 3a Perspective view of the frame.

[0025] Figure 7 yes Figure 2 Front view of the positioning element in .

[0026] Figure 8a and Figure 8b Is shown assembled Figure 1 FIG. 1 is a diagram showing an example of the order of battery modules. DETAILED DESCRIPTION

[0027] Figure 1 is a perspective view of a battery module according to an embodiment of the present disclosure. Figure 2 yes Figure 1 Exploded view of the battery module shown. Figure 1 and Figure 2 The battery module 100 according to the present embodiment includes a tube 110, a positioning element 120, a plurality of battery assemblies 130, and two covers 140 and 150. The positioning element 120 is rotatably disposed inside the tube 110 and has a plurality of positioning portions 122. The battery assemblies 130 are disposed inside the tube 110 so as to be sequentially stacked in the axial direction A1 of the tube 110, and each battery assembly 130 has a groove 130a. The positioning portions 122 of the positioning element 120 are arranged to be spaced apart from each other in the axial direction A1 of the tube 110 so as to correspond to the corresponding grooves 130a of the battery assemblies 130. The two covers 140 and 150 are respectively disposed at opposite ends of the tube 110 to cover the battery assemblies 130.

[0028] Figure 3a and Figure 3b are shown separately Figure 2Figures showing the released and fixed states of the positioning element on the battery assembly. Figure 4a and Figure 4b They are Figure 3a and Figure 3b A plan view of the positioning elements and battery assembly. Figure 5a and Figure 5b Along Figure 4a and Figure 4b The positioning element 120 according to this embodiment is configured to be Figure 3a 、 Figure 4a and Figure 5a The release state shown is the same as Figure 3b 、 Figure 4b and Figure 5b The battery assembly 130 is rotated relative to the tube 110 between the fixed states shown. When the positioning element 120 is in the fixed state, each positioning portion 122 is positioned in the corresponding groove 130a to prevent the battery assembly 130 from moving in the axial direction A1 of the tube 110. When the positioning element 120 is in the released state, each positioning portion 122 leaves the corresponding groove 130a, thereby releasing the battery assembly 130.

[0029] As described above, in the battery module 100 according to this embodiment, the positioning element 120 is further provided inside the tube 110 to position the battery assembly 130. The user can simply rotate the positioning element 120 to prevent the battery assembly 130 from moving in the axial direction A1 of the tube 110 via the positioning portion 122. Therefore, the battery module 100 according to this embodiment can stably fix the battery assembly 130 in a simple manner.

[0030] Reference Figure 3a and Figure 3b In this embodiment, each battery assembly 130 includes a frame 132 and a plurality of battery cells 134. The battery cells 134 are disposed within the frame 132, and grooves 130a are formed on the outer surface of the frame 132. In other embodiments, the battery assembly 130 may have various forms, and the present disclosure is not limited thereto.

[0031] Figure 6 yes Figure 3a A perspective view of the frame in . Figure 6 According to the present embodiment, the groove 130a has two opposing inner walls W. When the positioning element 120 is in a fixed state, the positioning portion 122 can be positioned between the two inner walls W and stop the two inner walls W in the axial direction A1 of the tube 110, thereby preventing the battery assembly 130 from moving in the axial direction A1 of the tube 110 as described above.

[0032] Reference Figure 3a and Figure 5aSpecifically, the tube 110 according to this embodiment has a pivot groove 110a. The positioning element 120 includes a rotation shaft portion 124 and a connection portion 126. The rotation shaft portion 124 is accommodated in the pivot groove 110a to pivot along a rotation axis A2 parallel to the axial direction A1, thereby rotating relative to the tube 110 along the rotation axis A2. The connection portion 126 extends from the rotation shaft portion 124 in a direction perpendicular to the rotation axis A2 to connect to the positioning portion 122. In other words, the positioning portion 122 is connected to the rotation shaft portion 124 via the connection portion 126.

[0033] In addition, if Figure 5a and Figure 5b As shown, the pivot groove 110a according to the present embodiment has two stop surfaces S1 and S2, and the two stop surfaces S1 and S2 stop the connection portion 126 to limit the rotation angle range of the positioning element 120. When the positioning element 120 is in the released state, as shown in FIG. Figure 5a As shown, the connecting portion 126 is stopped by the stop surface S1, and when the positioning element 120 is in the fixed state, as shown in FIG. Figure 5b As shown, the connection portion 126 is stopped by the stop surface S2. Specifically, the rotation angle range of the positioning element 120 is limited to, for example, 90 degrees by the two stop surfaces S1 and S2, but the present disclosure is not limited thereto.

[0034] In this embodiment, if Figure 5a and Figure 5b As shown, the positioning portion 122 has an arcuate surface 1221, and when the positioning element 120 is in a fixed state, the arcuate surface 1221 of the positioning portion 122 is guided to the groove 130a of the battery assembly 130. That is, the arcuate surface 1221 faces the outer surface of the positioning element 120. During the rotation of the positioning element 120, the arcuate surface 1221 serves as a guide to allow the positioning element 120 to rotate smoothly.

[0035] Figure 7 yes Figure 2 Front view of the positioning component in . Figure 7 The rotating shaft portion 124 according to the present embodiment has an operating portion 1241 at its end portion in the axial direction A1, and a force is applied to the operating portion 1241 so that the rotating shaft portion 124 moves along the rotation axis A2 (see Figure 2 ) is rotated. Specifically, the operating portion 1241 may be a straight slot operated using a straight tool (such as a flat-head screwdriver), but the present disclosure is not limited thereto. The positioning element 120 according to the present embodiment is made of, for example, a metal having good structural strength to stably position the battery assembly 130. According to other embodiments, the positioning element 120 may be made of various other materials, and the present disclosure is not limited thereto.

[0036] Figure 8a and Figure 8b Is shown assembled Figure 1 Hereinafter, the assembly method of the battery module 100 according to the present embodiment will be described. First, as Figure 8a As shown, the tube 110 connected to the cover 140 is sleeved on the stacked battery assemblies 130 along the D1 direction for installation. Then, after the battery assembly 130 is completely positioned inside the tube 110, the positioning element 120 is inserted into the tube 110 along the D2 direction, as shown in FIG. Figure 8b Next, as shown Figure 5a and Figure 5b As shown, the positioning element 120 is rotated from the release state to the fixed state, and then, as shown in FIG. Figure 1 As shown, the cover 150 is coupled to the tube 110 , thereby completing the assembly of the battery module 100 .

[0037] As described above, in the battery module according to the present disclosure, a positioning element for positioning the battery assembly is further mounted within the tube. The user can simply rotate the positioning element to prevent the battery assembly from moving axially along the tube using the positioning portion. Therefore, the battery module according to the present disclosure can stably secure the battery assembly using a simple method.

[0038] [Description of Reference Signs]

[0039] 100: Battery module

[0040] 110: Tube

[0041] 110a: Pivot slot

[0042] 120: Positioning element

[0043] 122: Positioning unit

[0044] 1221: curved surface

[0045] 124: Rotating shaft

[0046] 1241: Operation Department

[0047] 126: Connection

[0048] 130: Battery components

[0049] 130a: Groove

[0050] 132: Framework

[0051] 134: Battery Cell

[0052] 140, 150: Cover

[0053] A1: Axial direction

[0054] A2: Rotation axis

[0055] D1, D2: direction

[0056] S1, S2: Stop surfaces

[0057] W: inner wall

Claims

1. A battery module, comprising: Tube; a positioning element rotatably disposed within the tube, having at least one positioning portion and configured to rotate relative to the tube between a fixed state and a released state; as well as at least one battery assembly disposed within the tube and having a recess, wherein, when the positioning element is in the fixed state, the at least one positioning portion is positioned in the groove to prevent the at least one battery assembly from moving in the axial direction of the tube, and Wherein, when the positioning element is in the released state, the at least one positioning portion leaves the groove.

2. The battery module according to claim 1, in, The groove has two opposite inner walls, and Wherein, when the positioning element is in the fixed state, the at least one positioning portion is located between the two inner walls to stop the two inner walls in the axial direction.

3. The battery module according to claim 1, in, The at least one battery assembly includes a plurality of battery assemblies, wherein the battery assemblies are stacked sequentially in the axial direction, wherein the at least one positioning portion includes a plurality of positioning portions, and the positioning portions are arranged to be spaced apart from each other in the axial direction so as to respectively correspond to the grooves of the battery assemblies.

4. The battery module according to claim 1, in, The positioning element comprises a rotation shaft portion, wherein the rotation shaft portion is configured to rotate relative to the tube along a rotation axis parallel to the axial direction, and wherein the at least one positioning portion is connected to the rotation shaft portion.

5. The battery module according to claim 4, in, The positioning element further includes a connecting portion, and wherein the connecting portion extends from the rotation shaft portion in a direction perpendicular to the rotation axis and is connected to the at least one positioning portion.

6. The battery module according to claim 4, in, The tube has a pivot groove, and wherein the rotating shaft portion is received in the pivot groove to pivot along the rotating axis.

7. The battery module according to claim 6, in, The pivot slot has two stop surfaces, and wherein the two stop surfaces are configured to limit the rotational angular range of the positioning element.

8. The battery module according to claim 4, in, The rotating shaft portion has an operating portion at an end portion of the rotating shaft portion in the axial direction, and wherein the operating portion receives a force to rotate the rotating shaft portion along the rotation axis.

9. The battery module according to claim 1, in, The at least one positioning portion has an arcuate surface, and when the positioning element is in the fixed state, the arcuate surface is guided to the groove.

10. The battery module according to claim 1, in, The positioning element is made of metal.

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