A battery structure

Abstract

This utility model relates to the field of batteries and discloses a battery structure, including a battery cell, a protection plate, a first conductive element, a second conductive element, and a bracket. The protection plate is insulatedly connected to one end of the battery cell. The first conductive element connects the protection plate to a first electrode, and the second conductive element connects the protection plate to a second electrode. The bracket includes an integrally formed first limiting plate, a second limiting plate, and a limiting side plate. The battery cell is disposed between the first limiting plate and the second limiting plate. A first receiving groove is provided on the side of the limiting side plate away from the battery cell. The first receiving groove is used to receive the second conductive element so that the second conductive element is insulated from the battery cell. This utility model restricts the position of the second conductive element through the first receiving groove to protect and limit the second conductive element, so that the second conductive element is insulated from the battery cell. It also ensures the stability of the second conductive element installation, making the use of the entire battery safer and more reliable.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery structure. Background Technology

[0002] Currently, removable batteries are mainly assembled from a battery pack and a battery casing. Inside the battery, a protection board is needed to protect the cells. However, the stable installation of the protection board is a challenge. Connecting the protection board to the injection-molded casing requires molding the battery casing, which has a long molding cycle and high mold costs. Using other methods to fix the protection board requires more components, and the insulation of the protection board must also be considered. This results in too many components in the removable battery, making the structure and process complex and the production cost too high. The large number of parts also makes the entire battery installation and disassembly process more difficult. During transportation and installation, the large number of components can also affect the stability of the position and state of each component, which in turn affects the insulation and connection stability of the protection board and other components, leading to various unnecessary losses. Utility Model Content

[0003] The technical problem to be solved by this utility model is: how to simplify the structure of a detachable battery and how to avoid the battery being installed backwards. In order to solve the above technical problem, this utility model provides a battery structure, including a cell, a protection board, a first conductive component, a second conductive component, and a bracket.

[0004] The battery cell has a first electrode and a second electrode at its two ends, respectively.

[0005] The protective plate is insulatedly connected to one end of the battery cell;

[0006] The first conductive element is used to connect the protection plate and the first electrode, and the second conductive element is used to connect the protection plate and the second electrode;

[0007] The bracket includes an integrally formed first limiting plate, a second limiting plate, and a limiting side plate. The limiting side plate extends along the axial direction of the battery cell. The two ends of the limiting side plate are respectively connected to the first limiting plate and the second limiting plate. The battery cell is disposed between the first limiting plate and the second limiting plate.

[0008] The limiting side plate has a first receiving groove on the side away from the battery cell. The first receiving groove is used to receive the second conductive element so that the second conductive element is insulated from the battery cell.

[0009] Preferably, the protective plate is disposed on the side of the first limiting plate away from the battery cell, and the side of the first limiting plate facing the protective plate is provided with an annular protrusion, and / or, an annular first insulating pad is disposed between the first limiting plate and the battery cell.

[0010] Preferably, a first electronic device and a second electronic device are disposed on the side of the protection plate away from the battery cell. The first electronic device is connected to the first conductive element, and the second electronic device is connected to the second conductive element. The edge of the protection plate located on the side of the second conductive element protrudes outward.

[0011] Preferably, the first conductive element includes a first connecting piece, a second connecting piece, and a first intermediate connecting piece connecting the first connecting piece and the second connecting piece, wherein the first connecting piece is connected to the first electronic device, and the second connecting piece is connected to the first electrode.

[0012] Preferably, the second conductive element includes a third connecting piece, a fourth connecting piece, and a second intermediate connecting piece connecting the third connecting piece and the fourth connecting piece. The third connecting piece is connected to the second electronic device, the fourth connecting piece is connected to the second electrode, and the second intermediate connecting piece is disposed in the first receiving groove.

[0013] Preferably, the limiting side plate has a first through groove on the bottom surface of the first receiving groove located at one end of the second limiting plate, the first through groove penetrates the limiting side plate, and the fourth connecting piece is disposed in the first through groove.

[0014] Preferably, the second limiting plate is provided with a second receiving groove on the side facing the battery cell, and a second through groove is provided on the inner bottom surface of the second receiving groove, the second through groove penetrating the second limiting plate; a handle is provided in the second receiving groove, and one end of the handle passes through the second through groove and is located on the side of the second limiting plate away from the battery cell.

[0015] Preferably, a second insulating pad is provided between the second limiting plate and the fourth connecting piece.

[0016] Preferably, the battery structure further includes a sleeve, the sleeve housing the battery cell, the protection plate, the bracket, and the first conductive element and the second conductive element;

[0017] The limiting side plate has a convex anti-fooling ridge on the side away from the battery cell, and the first receiving groove is disposed on the side of the anti-fooling ridge away from the battery cell; the sleeve is disposed with its outer wall protruding outwards corresponding to the position of the anti-fooling ridge.

[0018] Preferably, a third insulating pad is provided between the sleeve and the second intermediate connecting piece, and a pressure plate is provided between the sleeve and the protective plate.

[0019] Compared with the prior art, the battery structure provided in this embodiment of the present invention has the following advantages: In this invention, a limiting side plate is integrally formed between the first limiting plate and the second limiting plate in the bracket part, and a first receiving groove is provided on the side of the limiting side plate away from the battery cell. The first receiving groove can restrict the position of the second conductive component, which on the one hand makes the installation position of the second conductive component more stable and reliable, and the position of the second conductive component is not easy to shift. On the other hand, it also insulates the second conductive component from the battery cell, thereby ensuring the stability of the position of the second conductive component during installation and transportation, and thus making the use and transportation of the entire battery safer and more reliable and protecting the second conductive component. Attached Figure Description

[0020] Figure 1 This is an exploded structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This is a three-dimensional view of the internal battery body structure of the battery sleeve of this utility model;

[0023] Figure 4 This is a perspective view of the protective plate and bracket of this utility model;

[0024] Figure 5 This is another structural view of the protective plate and bracket of this utility model;

[0025] Figure 6 This is a structural view of the bracket of this utility model;

[0026] Figure 7 This is a structural view of the protective plate of this utility model;

[0027] Figure 8 This is a partial schematic diagram of the cross-sectional structure of the limiting side plate of this utility model.

[0028] In the diagram: 1. Battery cell; 11. First electrode; 12. Second electrode;

[0029] 2. Protection board; 21. First electronic component; 22. Second electronic component;

[0030] 3. First conductive component; 31. First connecting piece; 32. Second connecting piece; 33. First intermediate connecting piece;

[0031] 4. Second conductive component; 41. Third connecting piece; 42. Fourth connecting piece; 43. Second intermediate connecting piece;

[0032] 5. Bracket; 51. First limiting plate; 511. Annular protrusion; 52. Second limiting plate; 521. Second receiving groove; 522. Second through groove; 523. Handle; 53. Limiting side plate; 531. Anti-foolproof protrusion; 532. First receiving groove; 533. First through groove;

[0033] 6. First insulating pad; 7. Second insulating pad; 8. Third insulating pad;

[0034] 9. Sleeve; 91. Pressure plate. Detailed Implementation

[0035] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0036] like Figures 1 to 6 As shown, a preferred embodiment of this utility model provides a battery structure, including a battery cell 1, a protection board 2, a first conductive component 3, a second conductive component 4, and a bracket 5;

[0037] The two ends of the battery cell 1 are respectively provided with a first electrode 11 and a second electrode 12;

[0038] The protection board 2 is insulatedly connected to one end of the battery cell 1;

[0039] The first conductive element 3 is used to connect the protection plate 2 and the first electrode 11, and the second conductive element 4 is used to connect the protection plate 2 and the second electrode 12.

[0040] The bracket 5 includes an integrally formed first limiting plate 51, a second limiting plate 52, and a limiting side plate 53. The limiting side plate 53 extends along the axial direction of the battery cell 1. The two ends of the limiting side plate 53 are respectively connected to the first limiting plate 51 and the second limiting plate 52. The battery cell 1 is disposed between the first limiting plate 51 and the second limiting plate 52.

[0041] The limiting side plate 53 is provided with a first receiving groove 532 on the side away from the battery cell 1. The first receiving groove 532 is used to receive the second conductive element 4 so that the second conductive element 4 is insulated from the battery cell 1.

[0042] Specifically, after the protection plate 2 is installed at one end of the battery cell 1, the two electrodes at both ends of the battery cell 1 are connected to the protection plate 2 through the first conductive element 3 and the second conductive element 4, thus ensuring the safety of the battery cell 1. In this embodiment, the integral molding of the first limiting plate 51, the second limiting plate 52, and the third limiting plate can improve the production efficiency of the bracket 5. The reduced number of parts also makes the assembly and disassembly of the battery structure more convenient and faster, and makes the installation of the battery cell 1 in the bracket 5 more stable and reliable. Secondly, the limiting side plate 53 has a mis-proof protrusion 531 protruding on the side away from the battery cell 1. The mis-proof protrusion 531 can accommodate and limit the second conductive element 4 through the first receiving groove 532, thereby protecting the second conductive element 4 and making the position of the second conductive element 4 more stable, so that the position of the second conductive element 4 is not prone to deviation. At the same time, it can also separate the battery cell 1 from the second conductive element 4, so that the main body of the second conductive element 4 is insulated from the battery cell 1, thereby ensuring the safety of the battery cell 1. Finally, since the two ends of the second conductive element 4 are respectively connected to the protection plate 2 and one end of the battery cell 1, and the second conductive element 4 is housed in the first receiving groove 532 of the limiting side plate 53, the installation orientation of the battery cell 1 can be clearly defined by the protection plate 2 and the anti-foolproof protrusion 531, and the installation orientation of the battery after subsequent assembly can be further clearly defined, so that the battery and battery compartment can be oriented for assembly, realizing the anti-foolproof design and preventing the battery from being installed backwards. Among them, the side of the limiting side plate 53 near the battery cell 1 has an arc-shaped structure, so that it can fit against the body of the battery cell 1 and thus limit the position of the battery cell 1. In addition, the first conductive element 3 and the second conductive element 4 are both conductive nickel sheets.

[0043] In some embodiments, the protection plate 2 is disposed on the side of the first limiting plate 51 away from the battery cell 1, and the side of the first limiting plate 51 facing the protection plate 2 is provided with an annular protrusion 511, and / or, an annular first insulating pad 6 is disposed between the first limiting plate 51 and the battery cell 1.

[0044] Specifically, the first limiting plate 51 separates the protection plate 2 from the battery cell 1, preventing direct contact between them and thus achieving insulation between the protection plate 2 and the battery cell 1. The annular protrusion 511 further increases the distance between the protection plate 2 and the battery cell 1 to ensure insulation safety. The first insulating pad 6 also increases the insulation between the protection plate 2 and the battery cell 1. The annular structure of the first insulating pad 6 facilitates the connection of one end of the first conductive element 3 to the first electrode 11 of the battery cell 1 at the middle. Simultaneously, the first limiting plate 51 also positions the protection plate 2 and the first conductive element 3.

[0045] In some embodiments, a first electronic device 21 and a second electronic device 22 are provided on the side of the protection plate 2 away from the battery cell 1. The first electronic device 21 is connected to the first conductive element 3, and the second electronic device 22 is connected to the second conductive element 4. The edge of the protection plate 2 located on the side of the second conductive element 4 protrudes outward.

[0046] The side of the protection board 2 away from the battery cell 1 is also provided with positive and negative gold fingers.

[0047] Specifically, in this embodiment, the protection board 2 integrates positive and negative gold fingers, which facilitates power output and prevents the battery from being installed backwards. Furthermore, the protruding edges of the protection board 2 are matched with the anti-misplacement protrusions 531. The irregular shape of the protection board 2 ensures its installation direction, allowing the first conductive element 3 and the second conductive element 4 to accurately connect with the first electronic device 21 and the second electronic device 22 during installation, preventing the protection board 2 from being installed backwards and further determining the battery's installation direction.

[0048] In some embodiments, the first conductive element 3 includes a first connecting piece 31, a second connecting piece 32, and a first intermediate connecting piece 33 connecting the first connecting piece 31 and the second connecting piece 32. The first connecting piece 31 is connected to the first electronic device 21, and the second connecting piece 32 is connected to the first electrode 11.

[0049] Furthermore, the second conductive element 4 includes a third connecting piece 41, a fourth connecting piece 42, and a second intermediate connecting piece 43 connecting the third connecting piece 41 and the fourth connecting piece 42. The third connecting piece 41 is connected to the second electronic device 22, the fourth connecting piece is connected to the second electrode 12, and the second intermediate connecting piece 43 is disposed in the first receiving groove 532.

[0050] In this embodiment, the first electrode 11 is the positive electrode and the second electrode 12 is the negative electrode. During actual installation, the first conductive element 3 and the protection plate 2 are both located on one side of the first electrode 11 of the battery cell 1, while one end of the second conductive element 4 is located on one side of the second electrode 12 of the battery cell 1, and the other end is located on one side of the first electrode 11. Specifically, both the first conductive element 3 and the second conductive element 4 have a "U"-shaped structure. The first connecting piece 31 is connected above the first electronic device 21, while the first intermediate connecting piece 33 is located at the edge of the protective plate 2. The second connecting piece 32 is inserted below the first limiting plate 51, positioned between the first limiting plate 51 and the battery cell 1, and connected to the first electrode 11 of the battery cell 1. The third connecting piece 41 is connected above the second electronic device 22. The first and second electronic devices 21 and 22 are positioned opposite each other on the top surface of the protective plate 2, on opposite sides of the top surface. The second intermediate connecting piece 43 is housed in the first receiving groove 532, which effectively restricts the position of the first conductive element 3 and provides insulation protection. The fourth connecting piece 42 passes through the limiting side plate 53 and is positioned directly below the battery cell 1, connecting to the second electrode 12 of the battery cell 1. Furthermore, the connection method between each connecting piece and the electrode and electronic device can be welding.

[0051] In some embodiments, the limiting side plate 53 has a first through groove 533 on the bottom surface of the first receiving groove 532 located at one end of the second limiting plate 52. The first through groove 533 penetrates the limiting side plate 53, and a fourth connecting piece is provided in the first through groove 533.

[0052] Specifically, during actual installation, after the fourth connecting piece 42 is bent relative to the second intermediate connecting piece 43, it can pass through the first through groove 533 and enter directly below the battery cell 1 from the first receiving groove 532, thereby being able to stably contact the second electrode 12 of the battery cell 1. At the same time, the first through groove 533 can also restrict the position of the fourth connecting piece 42, thereby ensuring the stability of the position of the second conductive element 4.

[0053] In some embodiments, the second limiting plate 52 is provided with a second receiving groove 521 on the side facing the battery cell 1, and a second through groove 522 is provided on the inner bottom surface of the second receiving groove 521, the second through groove 522 penetrating the second limiting plate 52; a handle 523 is provided in the second receiving groove 521, one end of the handle 523 passing through the second through groove 522 and disposed on the side of the second limiting plate 52 away from the battery cell 1.

[0054] Specifically, a second receiving groove 521 is additionally provided on the second limiting plate 52, and a handle 523 is provided in the second receiving groove 521. One end of the handle 523 extends through the second through groove 522 to the outside of the bracket 5. In the actual battery disassembly process, the staff can more conveniently pull the battery out of the battery compartment through the handle 523, without having to pry the battery out of the battery compartment with effort, thus making battery disassembly more convenient and labor-saving.

[0055] In some embodiments, a second insulating pad 7 is provided between the second limiting plate 52 and the fourth connecting piece. The second insulating pad 7 can insulate the fourth connecting piece from the external environment, thereby ensuring the safety and stability of the battery during use.

[0056] In some embodiments, the battery structure further includes a sleeve 9, which houses a battery cell 1, a protection plate 2, a bracket 5, a first conductive element 3, and a second conductive element 4.

[0057] The limiting side plate 53 has a protruding anti-fooling ridge 531 on the side away from the battery cell 1, and the first receiving groove 532 is provided on the side of the anti-fooling ridge 531 away from the battery cell 1; the sleeve 9 is provided with the outer wall of the sleeve corresponding to the position of the anti-fooling ridge 531 protruding outward.

[0058] Furthermore, a third insulating pad 8 is provided between the sleeve 9 and the second intermediate connecting piece, and a pressure plate 91 is provided between the sleeve 9 and the protective plate 2.

[0059] Specifically, the sleeve 9 provides protection for the battery cell 1, preventing it from being punctured or scratched by the external environment, thus making the battery safer to use. The irregular shape of the sleeve 9 matches the anti-misplacement protrusion 531 structure of the limiting side plate 53 in the bracket 5. Combined with the determination of the position of the protection plate 2, this clearly restricts the direction in which the battery is inserted into the battery compartment, preventing the battery from being installed backwards. In a specific embodiment, the cross-section of the anti-misplacement protrusion 531 is preferably trapezoidal. The third insulating pad 8 provides insulation protection for the second intermediate connecting piece, thereby ensuring the safety and stability of the battery during use. Furthermore, the pressure plate 91, on the one hand, helps the bracket 5 stabilize the position of the protection plate 2, and on the other hand, protects the upper surface of the protection plate 2, preventing damage to it.

[0060] In summary, this utility model embodiment provides a battery structure that reduces the number of parts in the detachable battery through an integrally formed bracket 5, making the assembly process of the detachable battery simpler and more efficient. At the same time, the irregular structure design of the limiting side plate 53 in the bracket 5, with one side of the limiting side plate 53 protruding, combined with the setting of the protective plate 2, can restrict the installation orientation of the battery, realize the foolproof function, and prevent the battery from being installed backwards.

[0061] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A battery structure, characterized in that, include: A battery cell, wherein a first electrode and a second electrode are respectively provided at both ends of the battery cell; A protection board, which is insulatedly connected to one end of the battery cell; A first conductive element and a second conductive element, wherein the first conductive element is used to connect the protective plate and the first electrode, and the second conductive element is used to connect the protective plate and the second electrode; The bracket includes an integrally formed first limiting plate, a second limiting plate, and a limiting side plate. The limiting side plate extends along the axial direction of the battery cell. The two ends of the limiting side plate are respectively connected to the first limiting plate and the second limiting plate. The battery cell is disposed between the first limiting plate and the second limiting plate. The limiting side plate has a first receiving groove on the side away from the battery cell. The first receiving groove is used to receive the second conductive element so that the second conductive element is insulated from the battery cell.

2. The battery structure according to claim 1, characterized in that, The protection plate is disposed on the side of the first limiting plate away from the battery cell; The first limiting plate has an annular protrusion on the side facing the protective plate, and / or an annular first insulating pad is provided between the first limiting plate and the battery cell.

3. The battery structure according to claim 2, characterized in that, The protective plate has a first electronic device and a second electronic device disposed on the side away from the battery cell. The first electronic device is connected to the first conductive element, and the second electronic device is connected to the second conductive element. The edge of the protective plate located on the side of the second conductive element protrudes outward.

4. The battery structure according to claim 3, characterized in that, The first conductive element includes a first connecting piece, a second connecting piece, and a first intermediate connecting piece connecting the first connecting piece and the second connecting piece. The first connecting piece is connected to the first electronic device, and the second connecting piece is connected to the first electrode.

5. The battery structure according to claim 3, characterized in that, The second conductive element includes a third connecting piece, a fourth connecting piece, and a second intermediate connecting piece connecting the third connecting piece and the fourth connecting piece. The third connecting piece is connected to the second electronic device, the fourth connecting piece is connected to the second electrode, and the second intermediate connecting piece is disposed in the first receiving groove.

6. The battery structure according to claim 5, characterized in that, The limiting side plate has a first through groove on the bottom surface of the first receiving groove located at one end of the second limiting plate. The first through groove passes through the limiting side plate, and the fourth connecting piece is disposed in the first through groove.

7. The battery structure according to claim 6, characterized in that, The second limiting plate is provided with a second receiving groove on the side facing the battery cell, and a second through groove is provided on the inner bottom surface of the second receiving groove, which penetrates the second limiting plate; a handle is provided in the second receiving groove, and one end of the handle passes through the second through groove and is located on the side of the second limiting plate away from the battery cell.

8. The battery structure according to claim 7, characterized in that, A second insulating pad is provided between the second limiting plate and the fourth connecting piece.

9. The battery structure according to claim 5, characterized in that, The battery structure also includes a sleeve, the inside of which are housed the battery cell, the protection plate, the bracket, the first conductive element, and the second conductive element; The limiting side plate has a convex anti-fooling ridge on the side away from the battery cell, and the first receiving groove is disposed on the side of the anti-fooling ridge away from the battery cell; the sleeve is disposed with its outer wall protruding outwards corresponding to the position of the anti-fooling ridge.

10. The battery structure according to claim 9, characterized in that, A third insulating pad is provided between the sleeve and the second intermediate connecting piece, and / or a pressure plate is provided between the sleeve and the protective plate.

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