Cylindrical battery

Abstract

The utility model relates to the technical field of batteries, and discloses a cylindrical battery, which comprises a cylindrical shell, a cylindrical battery core, a cylindrical battery core, a cylindrical battery core, a cylindrical battery core and a cylindrical battery core, and is characterized in that an opening is formed at one end of the cylindrical shell; the circuit board is arranged in the cylindrical shell, and one side of the circuit board abuts against the gear structure; the connection supporting piece is arranged in the cylindrical shell and abuts against the other side of the circuit board; the battery cell is arranged in the cylindrical shell, and a second electrode of the battery cell is conductively connected with the cylindrical shell; the first electrode of the circuit board is conductively connected with the first electrode of the battery cell, and the second electrode of the circuit board is conductively connected with the cylindrical shell through the connecting support piece. According to the cylindrical battery provided by the utility model, the gear structure is propped against one side of the circuit board, and the connecting support piece fixedly arranged in the cylindrical shell is propped against the other side of the circuit board, so that the circuit board is extruded, propped and fixed, and the second electrode of the circuit board is conductively connected with the cylindrical shell through the connecting support piece; and the stability of conductive connection between the circuit board and the cylindrical shell can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a cylindrical battery. Background Art

[0002] Cylindrical batteries are prone to vibration and bumps during transportation or when installed in mobile devices. However, due to the poor connection stability between the circuit board and the battery casing inside cylindrical batteries, when the cylindrical battery is shaken or bumped, the relative position of the circuit board and the battery casing may change, resulting in an unstable conductive connection between the circuit board and the battery casing, which in turn affects the battery life and performance. Utility Model Content

[0003] In view of this, the present invention provides a cylindrical battery to solve the problem that when the cylindrical battery shakes or bumps, the relative position of the circuit board and the battery casing may change, resulting in unstable conductive connection between the circuit board and the battery casing.

[0004] The utility model provides a cylindrical battery, comprising:

[0005] A cylindrical shell having an opening formed at one end and a shift structure provided at the opening;

[0006] A circuit board is disposed inside the cylindrical housing, with a side of the circuit board facing the opening abutting against the shift structure;

[0007] A connecting support member is fixedly disposed inside the cylindrical housing and abuts against a side of the circuit board away from the opening;

[0008] The battery cell is disposed inside the cylindrical shell and is located on a side of the connecting support away from the opening, and the second electrode of the battery cell is conductively connected to the cylindrical shell;

[0009] The first electrode of the circuit board is conductively connected to the first electrode of the battery cell, the second electrode of the circuit board is conductively connected to the connecting support, and the connecting support is conductively connected to the cylindrical shell.

[0010] Beneficial effects: The shifting structure abuts against one side of the circuit board, and the connecting support fixedly arranged inside the cylindrical shell abuts against the other side of the circuit board, thereby squeezing and fixing the circuit board. The structural assembly is simple, and the second electrode of the circuit board is conductively connected to the cylindrical shell through the connecting support, which is beneficial to improving the stability of the conductive connection between the circuit board and the cylindrical shell.

[0011] In an optional embodiment, the battery cell is a metal hard shell battery cell or a soft pack battery cell; when the battery cell is a metal hard shell battery cell, a buffer member is further provided between the connecting support member and the battery cell.

[0012] Beneficial effect: When the battery cell is a metal hard shell battery cell, a buffer is provided between the connecting support and the battery cell to prevent rigid extrusion between the connecting support and the metal hard shell battery cell.

[0013] In an optional embodiment, the shifting structure includes a folded edge formed by inward bending of the side wall of the cylindrical housing, and the folded edge abuts against a side of the circuit board facing away from the connecting support member.

[0014] In an optional embodiment, a limiting structure is provided on the inner wall of the cylindrical housing, and the limiting structure abuts against a side of the connecting support member away from the circuit board.

[0015] Beneficial effect: The limiting structure is used to abut and support the side of the connecting support away from the circuit board, so that the limiting structure and the blocking structure can clamp and fix the circuit board and the connecting support, which is beneficial to enhancing the abutment stability of the connecting support to the circuit board.

[0016] In an optional embodiment, the limiting structure includes an annular platform that is annular and arranged around the axis of the cylindrical shell.

[0017] In an optional embodiment, one end of the battery cell is in direct or indirect contact with the connecting support, and the other end of the battery cell is in contact with an end of the cylindrical housing away from the opening.

[0018] Beneficial effect: By making the connecting support and the cylindrical shell away from the open end thereof, the two ends of the battery cell are respectively abutted and limited, thereby enhancing the installation stability of the battery cell inside the cylindrical shell.

[0019] In an optional embodiment, a charging module is provided on the side of the circuit board facing the connecting support, a through hole is opened on the side wall of the cylindrical shell corresponding to the position of the charging module, and a clearance hole is opened on the connecting support corresponding to the position of the through hole.

[0020] Beneficial effect: By opening a through hole on the side wall of the cylindrical shell and opening a clearance hole on the connecting support, the charging line used to connect to the charging module can be given way when the cylindrical battery needs to be charged.

[0021] In an optional embodiment, a conductive connector is connected between the first electrode of the circuit board and the first electrode of the battery cell, so that the circuit board forms a conductive connection with the battery cell through the conductive connector.

[0022] In an optional embodiment, the conductive connecting member includes a metal sheet.

[0023] In an optional embodiment, a connector is provided on the side of the circuit board facing the battery cell, and the connector is conductively connected between the first electrode of the circuit board and the conductive connector. The first electrode of the battery cell and the first electrode of the circuit board form a conductive connection through the conductive connector and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is an exploded schematic diagram of a cylindrical battery according to an embodiment of the present invention;

[0026] Figure 2 A top view of a cylindrical battery according to an embodiment of the present invention;

[0027] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0028] Figure 4 for Figure 3 A partial enlarged schematic diagram of B in the middle;

[0029] Figure 5 A schematic cross-sectional view of another cylindrical battery according to an embodiment of the present invention;

[0030] Figure 6 for Figure 5 A partial enlarged schematic diagram of center C;

[0031] Figure 7 for Figure 5 An exploded schematic diagram of a cylindrical battery is shown;

[0032] Figure 8 for Figure 5 Schematic diagram of a cylindrical housing of a cylindrical battery shown;

[0033] Figure 9 A schematic cross-sectional view of another cylindrical battery according to an embodiment of the present invention;

[0034] Figure 10 for Figure 9 An exploded schematic diagram of a cylindrical battery is shown;

[0035] Figure 11 This is a cross-sectional schematic diagram of another cylindrical battery according to an embodiment of the present utility model;

[0036] Figure 12 for Figure 11 A partial enlarged schematic diagram of D in the middle;

[0037] Figure 13 for Figure 11 An exploded schematic diagram of a cylindrical battery is shown;

[0038] Figure 14 This is a cross-sectional schematic diagram of another cylindrical battery according to an embodiment of the present utility model;

[0039] Figure 15 for Figure 14 A partial enlarged schematic diagram of E in the middle;

[0040] Figure 16 for Figure 14 An exploded schematic diagram of a cylindrical battery is shown;

[0041] Figure 17 This is a cross-sectional schematic diagram of another cylindrical battery according to an embodiment of the present utility model;

[0042] Figure 18 for Figure 17 An exploded schematic diagram of a cylindrical battery is shown;

[0043] Figure 19 This is a cross-sectional schematic diagram of another cylindrical battery according to an embodiment of the present utility model;

[0044] Figure 20 for Figure 19 A partial enlarged schematic diagram of F in the middle;

[0045] Figure 21 for Figure 19 Schematic diagram of the exploded cylindrical battery shown.

[0046] Description of reference numerals:

[0047] 1. Cylindrical shell; 101. Opening; 102. Stop structure; 103. Limiting structure; 104. Through hole; 2. Battery cell; 3. Circuit board; 301. Charging module; 302. Connector; 4. Connecting support; 401. Clearance hole; 5. Conductive connector; 6. Buffer; 7. Gasket; 8. Electrode cap; 9. Electrode sheet; 10. Annular groove; 11. Groove; 12. Insulating sheet. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0049] The following combination Figures 1 to 21 , describing the embodiments of the present utility model.

[0050] According to an embodiment of the present invention, a cylindrical battery is provided, comprising:

[0051] The cylindrical housing 1 has an opening 101 formed at one end thereof, and a shift structure 102 is provided at the opening 101;

[0052] The circuit board 3 is disposed inside the cylindrical housing 1, and the side of the circuit board 3 facing the opening 101 abuts against the shift structure 102;

[0053] The connecting support member 4 is fixedly disposed inside the cylindrical housing 1 and abuts against a side of the circuit board 3 away from the opening 101;

[0054] The battery cell 2 is disposed inside the cylindrical housing 1 and is located on a side of the connecting support 4 away from the opening 101 , and the second electrode of the battery cell 2 is conductively connected to the cylindrical housing 1 ;

[0055] The first electrode of the circuit board 3 is conductively connected to the first electrode of the battery cell 2 , the second electrode of the circuit board 3 is conductively connected to the connecting support 4 , and the connecting support 4 is conductively connected to the cylindrical housing 1 .

[0056] The cylindrical battery provided in this embodiment abuts against one side of the circuit board 3 through the blocking structure 102, and abuts against the other side of the circuit board 3 through the connecting support 4 fixedly arranged inside the cylindrical shell 1, thereby squeezing and abutting the circuit board 3 and fixing it. The structure is simple to assemble, and the second electrode of the circuit board 3 is conductively connected to the cylindrical shell 1 through the connecting support 4, which is beneficial to improving the stability of the conductive connection between the circuit board 3 and the cylindrical shell 1.

[0057] Specifically, the sidewalls of the cylindrical housing 1 can be entirely made of metal, or its inner wall can also be made of metal, and the end wall of the cylindrical housing 1 away from the opening 101 can be made entirely of metal. Along the axis of the cylindrical housing 1, the stop structure 102 partially covers the opening 101 so as to abut against the side of the circuit board 3 facing the opening 101.

[0058] The connecting support 4 includes a support ring and a support rod. When the connecting support 4 is configured as a support ring, the support rod is arranged in a circle around the axis of the cylindrical housing 1. When the connecting support 4 is configured as a support rod, the support rod extends along the axis of the cylindrical housing 1. There are multiple support rods, and the multiple support rods are spaced apart in the direction around the axis of the cylindrical housing 1.

[0059] The connecting support 4 is made of metal, and the relative position of the connecting support 4 and the cylindrical shell 1 is fixed. As a feasible implementation form, combined with Figure 3 and Figure 4 、 Figure 9 ,as well as Figures 14 to 18 As shown, the connecting support 4 is fixedly connected to the inner wall of the cylindrical shell 1, and the connecting support 4 abuts and limits the side of the circuit board 3 away from the opening 101, and abuts and limits the side of the circuit board 3 toward the opening 101 through the stop structure 102, thereby fixing the relative position of the circuit board 3 and the cylindrical shell 1. The form of fixed connection includes interference fit, welding, and threaded connection, so that the connecting support 4 and the inner wall of the cylindrical shell 1 are electrically connected, and the connecting support 4 abuts the second electrode of the circuit board 3, so that the second electrode of the circuit board 3 forms a conductive connection with the inner wall of the cylindrical shell 1 through the connecting support 4. As an additional embodiment, combined with Figures 5 to 8 、 Figures 11 to 13 ,as well as Figures 19 to 21 As shown, the inner wall of the cylindrical shell 1 is provided with the following limiting structure 103, which serves as a built-in platform to support and limit the side of the connecting support 4 away from the opening 101, and the blocking structure 102 abuts and limits the side of the connecting support 4 toward the opening 101 through the circuit board 3, thereby fixing the relative positions of the connecting support 4 and the circuit board 3 and the cylindrical shell 1. In addition, the limiting structure 103 is made of metal, and is in contact with the connecting support 4 through the limiting structure 103, and the connecting support 4 abuts against the second electrode of the circuit board 3, so that the second electrode of the circuit board 3 forms a conductive connection with the inner wall of the cylindrical shell 1 through the connecting support 4 and the limiting structure 103.

[0060] Furthermore, a gasket 7 is provided between the stop structure 102 and the circuit board 3, and the stop structure 102 abuts against the circuit board 3 through the gasket 7, thereby increasing the area of action of the stop structure 102 on the circuit board 3, which is beneficial to improving the stability and reliability of the stop structure 102 abutting against the circuit board 3. Figure 4 As shown, an electrode cap 8 is welded to the side of the circuit board 3 away from the battery cell 2, and a through hole is opened in the gasket 7 at the position corresponding to the electrode cap 8 to make room for the electrode cap 8. Part of the electrode cap 8 passes through the through hole and is exposed to the side of the gasket 7 away from the battery cell 2.

[0061] The first electrode is a positive electrode, and the second electrode is a negative electrode; alternatively, the first electrode is a negative electrode, and the second electrode is a positive electrode. The battery cell 2 is loaded into the cylindrical shell 1, with the second electrode of the battery cell 2 facing the end of the cylindrical shell 1 away from the opening 101. The second electrode of the battery cell 2 is conductively connected to the inner wall of the cylindrical shell 1, and the first electrode of the battery cell 2 is conductively connected to the first electrode of the circuit board 3. The second electrode of the circuit board 3 is conductively connected to the inner wall of the cylindrical shell 1 via the connecting support 4, thereby forming a circuit between the circuit board 3 and the battery cell 2. Furthermore, the second electrode of the circuit board 3 and the connecting support 4 form a conductive connection in the form of surface contact, which has a large contact area, a reliable connection, and facilitates heat dissipation, effectively improving product performance.

[0062] In one embodiment, combined Figures 1 to 21 As shown, the battery cell 2 is a metal hard shell battery cell or a soft package battery cell; when the battery cell 2 is a metal hard shell battery cell, a buffer member 6 is further provided between the connecting support member 4 and the battery cell 2 .

[0063] In the cylindrical battery provided in this embodiment, when the battery cell 2 is a metal hard shell battery cell, a buffer member 6 is provided between the connecting support member 4 and the battery cell 2 to prevent rigid extrusion between the connecting support member 4 and the metal hard shell battery cell.

[0064] Specifically, combined Figure 3 and Figure 4 as well as Figures 14 to 16 As shown, when the limiting structure 103 is not provided and the battery cell 2 uses a metal shell battery cell, a buffer 6 is provided between the connecting support 4 and the metal shell battery cell to avoid direct contact between the connecting support 4 and the metal shell battery cell, so that when the connecting support 4 moves excessively toward the side of the battery cell 2, the buffer 6 plays a buffering role to prevent the connecting support 4 from rigidly squeezing and colliding with the metal shell battery cell, thereby damaging the metal shell battery cell. The buffer 6 includes a buffer ring and a buffer block, and the buffer 6 is made of a flexible material, such as plastic. When the battery cell 2 uses a soft-pack battery cell, combined with Figures 5 to 13 as well as Figures 17 to 21 As shown, the connection support member 4 may not be provided with the buffer member 6 and directly abuts against the battery cell 2 ; of course, the buffer member 6 may also be provided between the battery cells 2 .

[0065] When the battery cell 2 is a pouch cell, a through-hole is formed in a local area of the end wall of the cylindrical housing 1 away from the opening 101. A metal electrode sheet 9 is fixedly connected to the through-hole of the cylindrical housing 1. After the battery cell 2 is installed in the cylindrical housing 1, the tab of the second electrode of the pouch cell abuts against the electrode sheet 9, forming a conductive connection between the second electrode of the pouch cell and the cylindrical housing 1 through the electrode sheet 9.

[0066] In one embodiment, combined Figures 1 to 21As shown, the shifting structure 102 includes a folded edge formed by bending the side wall of the cylindrical housing 1 inward, and the folded edge abuts against a side of the circuit board 3 facing away from the connecting support 4.

[0067] Specifically, the shifting structure 102 is suitable for abutting against the side of the circuit board 3 away from the connecting support 4. As a feasible embodiment, the shifting structure 102 is formed by a folded edge structure formed by extruding and bending the side wall of the cylindrical shell 1 near the opening 101 inward. During the extrusion and bending process, the folded edge may squeeze the connecting support 4 through the circuit board 3. When the limiting structure 103 is not provided, the connecting support 4 may move excessively toward the side of the battery cell 2. When the battery cell 2 is a metal shell battery cell, at this time, since a buffer member 6 is provided between the connecting support 4 and the battery cell 2, it can prevent the connecting support 4 from rigidly extruding and colliding with the metal shell battery cell, thereby damaging the metal shell battery cell. As an additional embodiment, the shifting structure 102 is formed by a shifting plate or a shifting rod fixedly connected to the side wall of the cylindrical shell 1 near the opening 101.

[0068] In one embodiment, combined Figures 1 to 21 As shown, a limiting structure 103 is provided on the inner wall of the cylindrical housing 1 , and the limiting structure 103 abuts against a side of the connecting support 4 away from the circuit board 3 .

[0069] The cylindrical battery provided in this embodiment uses a limiting structure 103 to abut and support the side of the connecting support member 4 away from the circuit board 3, so that the limiting structure 103 and the blocking structure 102 can clamp and fix the circuit board 3 and the connecting support member 4, which is beneficial to enhance the abutment stability of the connecting support member 4 on the circuit board 3.

[0070] Specifically, combined Figures 5 to 8 , Figures 11 to 13 ,as well as Figures 19 to 21 As shown, the limiting structure 103 abuts against the side of the connecting support member 4 away from the circuit board 3. At the same time, the connecting support member 4 abuts against the circuit board 3, and the blocking structure 102 abuts against the side of the circuit board 3 away from the connecting support member 4. Thus, the relative positions of the circuit board 3 and the connecting support member 4 and the cylindrical housing 1 are fixed by the limiting structure 103 and the blocking structure 102. Furthermore, during the process of installing the connecting support member 4 into the cylindrical housing 1, when the connecting support member 4 moves to a position abutting against the limiting structure 103, it can be determined that the connecting support member 4 has moved into place, and the connecting support member 4 can be prevented from excessively extending into the cylindrical housing 1, which is conducive to improving operational convenience and avoiding the hidden danger of the connecting support member 4 excessively extending and squeezing and damaging the battery cell 2.

[0071] In one embodiment, combined Figures 1 to 21 As shown, the limiting structure 103 includes an annular platform that is annular and arranged around the axis of the cylindrical shell 1.

[0072] As a feasible implementation form, combined with Figures 5 to 8 As shown, the outer wall of the side wall of the cylindrical shell 1 is squeezed inward by a roller groove method, so that the corresponding area of the side wall of the cylindrical shell 1 is deformed inwardly and an annular platform is formed inside it, thereby forming an annular groove 10 on the outside of the side wall of the cylindrical shell 1 and an annular platform serving as a limiting structure 103 on the inside.

[0073] As another possible implementation form, combining Figures 11 to 13 ,as well as Figures 19 to 21 As shown, the outer wall of the side wall of the cylindrical shell 1 is stamped inwardly by stamping, so that the corresponding area of the side wall of the cylindrical shell 1 is deformed inwardly and a protrusion is formed inside it, thereby forming a groove 11 on the outside of the side wall of the cylindrical shell 1 and a protrusion serving as a limiting structure 103 inside. Preferably, the number of such protrusions is at least three, and they are spaced apart around the axial direction of the cylindrical shell 1.

[0074] As an additional embodiment, the limiting structure 103 is constructed by an annular plate or a limiting rod fixedly connected to the inner wall of the cylindrical housing 1 .

[0075] In one embodiment, combined Figures 1 to 21 As shown, one end of the battery core 2 is in direct or indirect contact with the connecting support 4 , and the other end is in contact with the end of the cylindrical housing 1 away from the opening 101 .

[0076] The cylindrical battery provided in this embodiment has the connecting support 4 and the cylindrical shell 1 away from the end of the opening 101 thereof, so as to abut and limit the two ends of the battery cell 2 respectively, thereby enhancing the installation stability of the battery cell 2 inside the cylindrical shell 1.

[0077] Specifically, the position of the limiting structure 103 is adapted to the height of the battery cell 2. When the battery cell 2 is installed inside the cylindrical shell 1, one end of the battery cell 2 is abutted against the end of the cylindrical shell 1 away from the opening 101, and the other end is abutted against the side of the limiting structure 103 away from the connecting support 4, thereby enhancing the installation stability of the battery cell 2 inside the cylindrical shell 1.

[0078] In one embodiment, combined Figures 1 to 21 As shown, a charging module 301 is provided on the side of the circuit board 3 facing the connecting support 4, a through hole 104 is opened at the position of the charging module 301 on the side wall of the cylindrical shell 1, and a clearance hole 401 is opened at the position of the connecting support 4 corresponding to the through hole 104.

[0079] The cylindrical battery provided in this embodiment has a through hole 104 formed on the side wall of the cylindrical shell 1 and a clearance hole 401 formed on the connecting support 4, so as to make way for the charging cable connected to the charging module 301 when the cylindrical battery needs to be charged.

[0080] Specifically, along the axial direction of the cylindrical shell 1, the height of the charging module 301 is less than the height of the connecting support 4, and an insulating sheet 12 is provided between the charging module 301 and the battery cell 2 to prevent a conductive connection from being formed between the charging module 301 and the battery cell 2.

[0081] In one embodiment, combined Figures 1 to 21 As shown, a conductive connector 5 is connected between the first electrode of the circuit board 3 and the first electrode of the battery cell 2 , so that the circuit board 3 forms a conductive connection with the battery cell 2 through the conductive connector 5 .

[0082] In one embodiment, combined Figures 1 to 21 As shown, the conductive connecting member 5 comprises a metal sheet.

[0083] Specifically, the conductive connecting member 5 includes a metal sheet, a wire, a spring, a thimble, etc. As a feasible implementation form, the metal sheet is in a Z shape.

[0084] In one embodiment, combined Figures 1 to 21 As shown, a connector 302 is provided on the side of the circuit board 3 facing the battery cell 2. The connector 302 is conductively connected between the first electrode of the circuit board 3 and the conductive connector 5. The first electrode of the battery cell 2 and the first electrode of the circuit board 3 form a conductive connection through the conductive connector 5 and the connector 302.

[0085] Specifically, connector 302 comprises a metal block, a metal rod, a metal spring, etc. Connector 302 is fixedly connected to circuit board 3 and forms a conductive connection with the first electrode of circuit board 3. One end of conductive connector 5 abuts connector 302 and forms a conductive connection, while the other end is spot-welded or welded to the first electrode of battery cell 2, thereby forming a conductive connection between the first electrode of circuit board 3 and the first electrode of battery cell 2 via conductive connector 5 and connector 302. Because connecting support 4 is provided between circuit board 3 and battery cell 2, spacing between circuit board 3 and battery cell 2 creates a reserved space for accommodating conductive connector 5 and connector 302. Connector 302 also serves to dissipate heat from circuit board 3.

[0086] Obviously, the above embodiments are merely examples for the purpose of clarity of explanation and are not intended to limit the implementation methods. Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the present invention.

Claims

1. A cylindrical battery, characterized in that: include: A cylindrical housing (1) is formed with an opening (101) at one end thereof, and a shift structure (102) is provided at the opening (101); A circuit board (3) is arranged inside the cylindrical housing (1), and a side of the circuit board (3) facing the opening (101) abuts against the shift structure (102); A connecting support member (4) is fixedly disposed inside the cylindrical housing (1) and abuts against a side of the circuit board (3) away from the opening (101); A battery cell (2) is arranged inside the cylindrical shell (1) and is located on a side of the connecting support (4) away from the opening (101), and a second electrode of the battery cell (2) is conductively connected to the cylindrical shell (1); The first electrode of the circuit board (3) is conductively connected to the first electrode of the battery cell (2), the second electrode of the circuit board (3) is conductively connected to the connecting support (4), and the connecting support (4) is conductively connected to the cylindrical housing (1).

2. The cylindrical battery according to claim 1, characterized in that The battery core (2) is a metal hard shell battery core or a soft package battery core; when the battery core (2) is a metal hard shell battery core, a buffer component (6) is further provided between the connecting support component (4) and the battery core (2).

3. The cylindrical battery according to claim 1, characterized in that The shifting structure (102) comprises a folded edge formed by inward bending of the side wall of the cylindrical housing (1), the folded edge abutting against a side of the circuit board (3) facing away from the connecting support member (4).

4. The cylindrical battery according to claim 1, characterized in that A limiting structure (103) is provided on the inner wall of the cylindrical housing (1), and the limiting structure (103) abuts against a side of the connecting support (4) away from the circuit board (3).

5. The cylindrical battery according to claim 4, characterized in that The limiting structure (103) comprises an annular platform which is in an annular shape and is arranged around the axis of the cylindrical shell (1).

6. The cylindrical battery according to claim 1, characterized in that One end of the battery core (2) is in direct or indirect contact with the connecting support (4), and the other end is in contact with an end of the cylindrical housing (1) away from the opening (101).

7. The cylindrical battery according to claim 1, characterized in that A charging module (301) is provided on a side of the circuit board (3) facing the connecting support member (4); a through hole (104) is provided on the side wall of the cylindrical housing (1) at a position corresponding to the charging module (301); and a clearance hole (401) is provided on the connecting support member (4) at a position corresponding to the through hole (104).

8. The cylindrical battery according to any one of claims 1 to 7, characterized in that: A conductive connector (5) is connected between the first electrode of the circuit board (3) and the first electrode of the battery cell (2), so that the circuit board (3) forms a conductive connection with the battery cell (2) through the conductive connector (5).

9. The cylindrical battery according to claim 8, characterized in that The conductive connecting member (5) comprises a metal sheet.

10. The cylindrical battery according to claim 8, characterized in that A connector (302) is provided on a side of the circuit board (3) facing the battery cell (2); the connector (302) is conductively connected between a first electrode of the circuit board (3) and the conductive connector (5); and the first electrode of the battery cell (2) and the first electrode of the circuit board (3) are conductively connected via the conductive connector (5) and the connector (302).

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