Circuit adapter, battery and electric equipment thereof

Abstract

The circuit adapter comprises a shell, a conductive column and a conductive sheet, the shell is provided with an assembly hole, two ends of the conductive column are respectively a first end portion and a second end portion, two ends of the conductive sheet are respectively a third end portion and a fourth end portion, the second end portion is electrically connected with the third end portion, and the fourth end portion is electrically connected with the second end portion. The conductive column and the conductive sheet are installed in the assembly hole, the first end portion is located outside the assembly hole, and the fourth end portion and the assembly hole form a switching cavity. The conductive columns and the conductive sheets are combined to conduct electricity, so that the space occupied by the switching copper bar is reduced, a basis is provided for improving the energy density of the battery, and the weight of the battery is reduced at the same time. And the fourth end part of the conducting strip and the assembly hole form an adapter cavity for inserting a copper column, so that compared with the prior art that an adapter copper bar is connected and fixed through a screw, the insertion is more convenient, the installation steps are reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a circuit adapter, a battery and electrical equipment thereof. Background Art

[0002] Copper busbars are usually used to connect the BDU and connector of traditional batteries. However, for compact batteries, due to limited space, setting up copper busbars for transfer will take up a large space and reduce the energy density of the battery. At the same time, the manufacturing cost of the transfer copper busbar itself is also high, and additional screws are required for fixing and connection, which increases the assembly steps and the weight of the battery. Utility Model Content

[0003] In order to overcome at least one of the defects of the above-mentioned prior art, the present invention provides a circuit adapter, a battery and its electrical equipment, which can solve the problems of the prior art of using adapter copper bars to connect BDU and connectors, such as increased cost, reduced battery energy density and increased battery weight.

[0004] The technical solution adopted by the present invention to solve the problem is:

[0005] A circuit adapter, comprising:

[0006] A housing, wherein the housing is provided with an assembly hole;

[0007] A conductive column, wherein two ends of the conductive column are respectively a first end and a second end;

[0008] a conductive sheet, wherein two ends of the conductive sheet are respectively a third end and a fourth end;

[0009] The second end is electrically connected to the third end, the conductive column and the conductive sheet are both installed in the assembly hole, the first end passes through the assembly hole, and the fourth end and the assembly hole form a transition cavity.

[0010] By adopting this solution, the conductive posts and conductive sheet are combined for electrical conduction, reducing the space required for the copper busbar adapter, thereby providing a foundation for improving the battery's energy density while also reducing the battery's weight. The fourth end of the conductive sheet and the assembly hole form a connection cavity for the copper post. Compared to the existing technology that uses screws to connect the copper busbar adapter, the plug-in connection method is more convenient, reduces installation steps, and increases production efficiency.

[0011] Furthermore, the conductive sheet is U-shaped, and the fourth end portion is an end of the conductive sheet having an opening.

[0012] By adopting the above scheme, the fourth end is an end of the conductive sheet with an opening, that is, the fourth end is one side of the opening of the U-shaped conductive sheet. The conductive part of the battery cell is inserted into the U-shaped conductive sheet, and the upper and lower sides of the conductive part are in contact with the conductive sheet, thereby improving the stability of the current conduction between the conductive sheet and the conductive part.

[0013] Furthermore, a limiting hole is provided at the third end of the conductive sheet, a limiting boss is provided at the second end of the conductive column, and the conductive column passes through the limiting hole until the limiting hole abuts against the limiting boss.

[0014] By adopting the above solution, the conductive column is set through the limiting hole to ensure that the conductive sheet and the conductive column are always in contact, thereby ensuring the circuit transmission effect. The conductive column is provided with a limiting boss that is offset against the limiting hole to facilitate the positioning of the conductive sheet and the conductive column when connected, and prevent the conductive column from being installed incorrectly or the conductive column as a whole from passing through the limiting hole.

[0015] Furthermore, the assembly hole has a narrow diameter section and a wide diameter section, the conductive column is passed through the narrow diameter section, the conductive sheet is arranged in the wide diameter section, and the diameter of the limiting boss is larger than the diameter of the narrow diameter section.

[0016] By adopting the above solution, the variable diameter structure of the wide diameter section and the narrow diameter section facilitates the installation of the conductive sheet, and the conductive sheet will not be offset when the conductive column is assembled.

[0017] Furthermore, a protrusion facing the middle of the switching cavity is provided in the middle of the conductive sheet.

[0018] By adopting the above solution, a protrusion is provided in the middle of the conductive sheet toward the middle of the adapter cavity, thereby ensuring contact between the conductive sheet and the conductive portion of the battery cell pack.

[0019] Furthermore, the distance from the end surface of the third end portion of the conductive sheet to the protrusion is smaller than the length of the conductive column outside the assembly hole.

[0020] By adopting the above solution, the conductive pillar is prevented from retreating into the assembly hole, thereby affecting the electrical connection between the conductive pillar and the outside.

[0021] Furthermore, the outer wall of the shell is provided with a structural plate, and the structural plate is provided with an assembly structure, and the assembly structure is used to be connected to the battery.

[0022] By adopting the above solution, the installation of the housing and the battery is facilitated, thereby facilitating the installation and fixation of the circuit adapter as a whole.

[0023] Furthermore, the housing is provided with two assembly holes, and each of the assembly holes is provided with the conductive column and the conductive sheet.

[0024] By adopting the above solution, the connection between the positive and negative poles can be achieved by installing one shell, which further reduces the difficulty of installation.

[0025] Furthermore, the conductive sheet is an elastic conductive sheet.

[0026] By adopting the above scheme, on the basis of using an elastic conductive sheet as the conductive sheet, a small amount of the conductive sheet can be inserted into the adapter cavity where the conductive part is originally inserted. After the conductive part with the above structure is inserted into the adapter cavity, the conductive sheet undergoes elastic deformation. Due to the effect of the elastic potential energy of the conductive sheet, the conductive sheet and the conductive part are more closely and reliably contacted, thereby ensuring the stability of conduction.

[0027] The utility model also provides a battery, including a battery shell, a battery cell group and the above-mentioned circuit adapter, the battery shell is provided with a mounting hole, the battery cell group has a conductive part, the circuit adapter is installed at the mounting hole, the conductive part is inserted into the adapter cavity and overlaps with the conductive sheet.

[0028] By adopting this solution, directly connecting the conductive portion of the battery pack to the conductive sheet within the circuit adapter, the stability and reliability of current transmission can be ensured, reducing the risk of power loss or power outages due to poor contact. The circuit adapter matches the mounting holes of the battery casing, making the connection between the battery pack and the circuit adapter simpler and faster, reducing assembly difficulty and improving production efficiency. Furthermore, by rationally designing the position and structure of the circuit adapter, the space within the battery can be more efficiently utilized, contributing to a more compact and lightweight design.

[0029] The utility model also provides an electrical device, comprising the battery.

[0030] In summary, the circuit adapter, battery, and electrical equipment provided by the present invention have the following technical effects:

[0031] 1. By using a combination of conductive columns and conductive sheets instead of traditional copper busbars for connection, the space required for conductive components is reduced, freeing up more space inside the battery to accommodate battery cells, thereby helping to improve the overall energy density of the battery and enabling it to have higher energy storage capacity in the same volume.

[0032] 2. Compared with traditional copper busbars, the combination of conductive posts and conductive sheets uses less conductive material, thereby reducing the total weight of the battery. Especially in the field of new energy vehicles, lighter batteries can bring better endurance and driving performance.

[0033] 3. The fourth end of the conductive sheet and the assembly hole together form a transition cavity. This design allows the conductive column to be connected by plugging. Compared with the traditional screw fixing method, the installation process is simpler and faster, significantly improving production efficiency, while also reducing potential human errors and enhancing product reliability and consistency.

[0034] 4. Due to the adoption of simpler and more efficient connection models and methods, not only the use of raw materials is reduced, but also the labor cost in the production process is reduced, and ultimately the cost is effectively controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0036] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0037] Figure 3 This is a schematic diagram of the structure of the conductive column and conductive sheet of the utility model;

[0038] Figure 4 This is a schematic diagram of the exploded structure of the conductive column and the conductive sheet of the utility model;

[0039] Figure 5 This is a schematic diagram of the battery structure of the present utility model;

[0040] Figure 6 For this utility model Figure 5 Magnified view of part A.

[0041] Among them, the meanings of the figure marks are as follows: 1. Shell; 11. Assembly hole; 111. Narrow diameter section; 112. Wide diameter section; 113. Transfer cavity; 12. Structural plate; 13. Assembly structure; 2. Conductive column; 21. First end; 22. Second end; 23. Limiting boss; 3. Conductive sheet; 31. Third end; 32. Fourth end; 33. Limiting hole; 34. Protrusion; 4. Battery; 41. Battery shell; 42. Battery cell group; 43. Conductive part. DETAILED DESCRIPTION

[0042] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described and discussed below in conjunction with the drawings of the present invention. Obviously, what is described here is only a part of the examples of the present invention, not all the examples. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] In order to facilitate the understanding of the embodiments of the present invention, the following will be further explained with reference to specific embodiments as examples in conjunction with the drawings, and each embodiment does not constitute a limitation on the embodiments of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0046] See Figures 1-4 The utility model discloses a circuit adapter, including a shell 1, a conductive column 2 and a conductive sheet 3. The shell 1 is provided with an assembly hole 11. The two ends of the conductive column 2 are respectively a first end 21 and a second end 22. The two ends of the conductive sheet 3 are respectively a third end 31 and a fourth end 32. The second end 22 is electrically connected to the third end 31. The conductive column 2 and the conductive sheet 3 are both installed in the assembly hole 11. The first end 21 passes through the assembly hole 11. The fourth end 32 and the assembly hole 11 form an adapter cavity 113.

[0047] Specifically, the housing 1 is provided with an assembly hole 11, into which the conductive post 2 and the conductive sheet 3 are both assembled. The first end 21 of the conductive post 2 extends beyond the assembly hole 11 for connection to an external conductive system. Within the assembly hole 11, the second end 22 of the conductive post 2 is electrically connected to the third end 31 of the conductive sheet 3. This means that the second end 22 and the third end 31 can be directly electrically connected by overlapping, or other switching circuits can be provided as needed to switch the conductive post 2 and the conductive sheet 3. The fourth end 32 of the conductive sheet 3 and the assembly hole 11 form a switching cavity 113. This means that the conductive portion 43 of the cell pack 42 in the battery 4 can be directly inserted into the switching cavity 113, where the conductive portion 43 contacts the fourth end 32 for electrical connection.

[0048] It should be noted that the conductive sheet 3 and the conductive pillar 2 can be made of materials with stable physical and chemical properties and good electrical conductivity, such as copper, copper alloys, aluminum, aluminum alloys, silver, silver alloys, tinned copper, nickel, and nickel alloys. The shape of the conductive sheet 3 is not limited here, as long as it can stably connect electrically with the conductive pillar 2 and the conductive portion 43. For example, it can be configured in the form of a sheet, a sheet with a U-shaped cross-section, a rectangular tube, a cylindrical tube, or other irregular shapes, as long as the conductive sheet 3 can ensure stable electrical connection with the conductive pillar 2 and the conductive portion 43.

[0049] In this embodiment, in order to improve the contact stability between the conductive sheet 3 and the conductive part 43, the conductive sheet 3 is U-shaped, and the fourth end portion 32 is an end of the conductive sheet 3 with an opening, that is, the sheet-shaped conductive sheet 3 has a U-shaped cross-section, and the fourth end portion 32 is an end of the conductive sheet 3 with an opening, that is, the fourth end portion 32 is one side of the opening of the U-shaped conductive sheet 3. The conductive part 43 of the battery cell is inserted into the U-shaped conductive sheet 3, and the upper and lower sides of the conductive part 43 are in contact with the conductive sheet 3, thereby improving the stability of the current conduction between the conductive sheet 3 and the conductive part 43.

[0050] In some embodiments, to ensure a stable connection between the conductive sheet 3 and the conductive pillar 2, a limiting hole 33 is provided at the third end 31 of the conductive sheet 3, and a limiting boss 23 is provided at the second end 22 of the conductive pillar 2. The conductive pillar 2 passes through the limiting hole 33 until it abuts against the limiting boss 23. The above arrangement of the conductive pillar 2 passing through the limiting hole 33 ensures that the conductive sheet 3 and the conductive pillar 2 are always in contact, thereby ensuring circuit transmission. The limiting boss 23 abutting against the limiting hole 33 facilitates the positioning of the conductive sheet 3 and the conductive pillar 2 during connection, preventing the conductive pillar 2 from being improperly installed or the conductive pillar 2 from passing through the limiting hole 33 as a whole.

[0051] In this embodiment, in order to ensure the stability of the installation of the conductive sheet 3, the assembly hole 11 has a narrow diameter section 111 and a wide diameter section 112, the conductive column 2 is arranged through the narrow diameter section 111, and the conductive sheet 3 is arranged in the wide diameter section 112, and the diameter of the limiting boss 23 is larger than the diameter of the narrow diameter section 111.

[0052] Specifically, the assembly hole 11 is divided into a narrow section 111 and a wide section 112. The conductive sheet 3 is designed to be unable to enter the narrow section 111. Specifically, the width of the conductive sheet 3 can be made larger than the maximum dimension that the narrow section 111 can pass through. Based on the U-shaped structure of the conductive sheet 3, the third end 31 of the conductive sheet 3 is aligned with the wall surface at the point where the narrow section 111 and the wide section 112 change in diameter. This effectively improves the posture of the conductive sheet 3 within the wide section 112, thereby ensuring that the conductive sheet 3 does not deviate during assembly of the conductive pillar 2.

[0053] In this embodiment, to ensure contact between the conductive sheet 3 and the conductive pillar 2, a protrusion 34 is provided in the middle of the conductive sheet 3, facing the middle of the transition cavity 113. Specifically, the protrusion 34 is provided in the middle of the conductive sheet 3, facing the middle of the transition cavity 113. That is, the protrusion 34 is provided in the middle of the conductive sheet 3, and the protrusion 34 is provided in the transition cavity 113. This ensures that when the conductive portion 43 is inserted into the transition cavity 113, the conductive portion 43 and the conductive sheet 3 are tightly fitted. When the conductive sheet 3 is a U-shaped conductive sheet 3, that is, the protrusion 34 is provided downward in the middle of the conductive sheet 3 located on the upper side of the transition cavity 113, and the protrusion 34 is provided upward in the middle of the conductive sheet 3 located on the lower side of the transition cavity 113, further improving the contact effect with the conductive portion 43.

[0054] In this embodiment, the distance from the end surface of the third end portion 31 of the conductive sheet 3 to the protrusion 34 is smaller than the length of the conductive column 2 outside the assembly hole 11, thereby preventing the conductive column 2 from retreating into the assembly hole 11 and affecting the electrical connection between the conductive column 2 and the outside.

[0055] In some embodiments, a structural plate 12 is provided on the outer wall of the housing 1 , and an assembly structure 13 is provided on the structural plate 12 . The assembly structure 13 is used to connect with the battery 4 .

[0056] Specifically, a structural plate 12 is provided along the outer wall of the housing 1. The shape of the structural plate 12 can be set according to actual needs, such as square, circular, or other desired special-shaped structures. An assembly structure 13 is provided on the structural plate 12 to secure the structural plate 12 and the battery 4. The assembly structure 13 can be freely selected as needed, such as a circular hole, screw hole, pin, clip, or slot that satisfies the requirements for the installation and fixation of the structural plate 12 and the battery 4. The assembly structure 13 on the structural plate 12 facilitates the installation of the housing 1 and the battery 4, thereby facilitating the installation and fixation of the circuit adapter as a whole.

[0057] In some embodiments, two assembly holes 11 are provided on the shell 1, and each assembly hole 11 is provided with a conductive column 2 and a conductive sheet 3, that is, the shell 1 is provided with two assembly holes 11, and each assembly hole 11 is provided with a conductive column 2 and a conductive sheet 3. When the shell 1 is installed on the battery 4, the connection of the positive and negative poles is met at the same time, further reducing the difficulty of installation.

[0058] In this embodiment, the conductive sheet 3 is an elastic conductive sheet. By adopting an elastic conductive sheet as the basis for the conductive sheet 3, the conductive sheet 3 can be slightly inserted into the adapter cavity 113 where the conductive part 43 is originally inserted. After the conductive part 43 with the above structure is inserted into the adapter cavity 113, the conductive sheet 3 undergoes elastic deformation. Due to the effect of the elastic potential energy of the conductive sheet 3, the conductive sheet 3 will not contact the conductive part 43 more closely and reliably, thereby ensuring the stability of conduction.

[0059] See Figure 5and Figure 6 As shown, the utility model also provides a battery 4, including a battery housing 41, a battery cell group 42 and the above-mentioned circuit adapter, the battery housing 41 is provided with a mounting hole, the battery cell group 42 has a conductive part 43, the circuit adapter is installed at the mounting hole, the conductive part 43 is inserted into the adapter cavity 113, and overlaps with the conductive sheet 3. By directly overlapping the conductive part 43 of the battery cell group 42 with the conductive sheet 3 in the circuit adapter, the stability and reliability of current transmission can be ensured, and the risk of power loss or power outage due to poor contact can be reduced. The circuit adapter matches the mounting hole of the battery housing 41, so that the connection between the battery cell group 42 and the circuit adapter becomes simpler and faster, reducing the difficulty of assembly and improving production efficiency. And by rationally designing the position and structure of the circuit adapter, the space inside the battery 4 can be used more efficiently, which helps to achieve a more compact and lightweight design goal.

[0060] Based on the same concept, the present invention further provides an electrical device, which uses the battery 4 as described above.

[0061] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A circuit adapter, characterized in that: include: A housing (1), wherein the housing (1) is provided with an assembly hole (11); A conductive column (2), wherein two ends of the conductive column (2) are respectively a first end (21) and a second end (22); A conductive sheet (3), wherein two ends of the conductive sheet (3) are respectively a third end (31) and a fourth end (32); The second end portion (22) is electrically connected to the third end portion (31), the conductive column (2) and the conductive sheet (3) are both installed in the assembly hole (11), the first end portion (21) passes through the assembly hole (11), and the fourth end portion (32) and the assembly hole (11) form a transfer cavity (113).

2. A circuit adapter according to claim 1, characterized in that: The conductive sheet (3) is U-shaped, and the fourth end portion (32) is an end of the conductive sheet (3) having an opening.

3. The circuit adapter according to claim 2, characterized in that: The third end portion (31) of the conductive sheet (3) is provided with a limiting hole (33), the second end portion (22) of the conductive column (2) is provided with a limiting boss (23), and the conductive column (2) passes through the limiting hole (33) until the limiting hole (33) abuts against the limiting boss (23).

4. The circuit adapter according to claim 3, wherein: The assembly hole (11) has a narrow diameter section (111) and a wide diameter section (112); the conductive column (2) is arranged in the narrow diameter section (111); the conductive sheet (3) is arranged in the wide diameter section (112); and the diameter of the limiting boss (23) is larger than the diameter of the narrow diameter section (111).

5. The circuit adapter according to claim 1, wherein: A protrusion (34) facing the middle of the switching cavity (113) is provided in the middle of the conductive sheet (3).

6. The circuit adapter according to claim 5, characterized in that: The distance from the end surface of the third end portion (31) of the conductive sheet (3) to the protrusion (34) is smaller than the length of the conductive column (2) outside the assembly hole (11).

7. The circuit adapter according to claim 1, characterized in that: The outer wall of the shell (1) is provided with a structural plate (12), and an assembly structure (13) is provided on the structural plate (12).

8. The circuit adapter according to claim 1, characterized in that: The housing (1) is provided with two assembly holes (11), and each assembly hole (11) is provided with the conductive column (2) and the conductive sheet (3).

9. A circuit adapter according to any one of claims 1 to 8, characterized in that: The conductive sheet (3) is an elastic conductive sheet.

10. A battery, characterized in that: The invention comprises a battery housing (41), a battery cell group (42) and a circuit adapter according to any one of claims 1 to 9, wherein the battery housing (41) is provided with a mounting hole, the battery cell group (42) has a conductive portion (43), the circuit adapter is mounted at the mounting hole, and the conductive portion (43) is inserted into the adapter cavity (113) and overlaps with the conductive sheet (3).

11. An electrical device, characterized in that: Comprising the battery (4) according to claim 10.

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