Modular connection strip

Abstract

The present application relates to modular connecting row, including: connecting assembly, the connecting assembly includes multiple groups of connecting piece one and multiple groups of connecting piece two, two groups of adjacent connecting piece two or two groups of adjacent connecting piece one and connecting piece two are enclosed into the accommodating groove of installing electric core;Series assembly is arranged at the both ends of connecting piece one and connecting piece two, the present application can be combined to form connecting assembly through the modular multiple groups of connecting piece one and multiple groups of connecting piece two, the number of connecting piece one and connecting piece two can be freely combined, therefore the number of connecting piece one and connecting piece two can be selected according to actual use demand, realize modular installation, and the aluminum row can be closely installed on the surface of connecting assembly, the side of connecting assembly away from the aluminum row is provided with accommodating groove, and the electric core is installed in the accommodating groove, the electric core is electrically connected with the aluminum row through the conductive piece, therefore the positive and negative pole lug can be separated through the connecting assembly, thereby reducing the risk of short circuit.

Description

Technical Field

[0001] This invention relates to the technical field of lithium battery pack manufacturing, and more particularly to modular connection strips. Background Technology

[0002] Power batteries drive the growth of my country's lithium-ion battery industry. As lithium battery packs are increasingly used in various fields, especially in electric vehicles, new energy, and special applications, they are being gradually promoted.

[0003] Currently, modular assembly on the market involves multiple aluminum busbars sequentially assembled onto structural plastic parts, which carries the risk of short circuits between the tabs. Based on the principles of saving assembly time and modularization and standardization, this modular connector was developed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a modular connection strip, the specific technical solution of which is as follows:

[0005] Modular connection bar, including:

[0006] A connecting assembly, the connecting assembly including multiple sets of connector one and multiple sets of connector two, wherein two adjacent sets of connector two or two adjacent sets of connector one and connector two form a receiving groove for installing battery cells;

[0007] A series assembly is disposed at both ends of connector one and connector two, and is used to connect multiple sets of connector one and connector two in series;

[0008] A limiting component is provided on the surfaces of connector one and connector two;

[0009] Aluminum busbars are disposed on the surface of the connecting component. Multiple sets of aluminum busbars are arranged sequentially along the arrangement direction of the connecting component. Several slots are provided on the surface of the aluminum busbars.

[0010] A tightening assembly that penetrates the aluminum busbar and extends into the limiting assembly is used to control the aluminum busbar to be limited to the surface of the connecting assembly.

[0011] As an improvement to the above technical solution, both ends of the first connector and the second connector are provided with connecting sleeves, and the surface of the connecting sleeves located at the lower position of the first connector and the second connector is provided with an n-shaped limiting member.

[0012] As an improvement to the above technical solution, a slot is provided at the bottom of the aluminum busbar to match the limiting member of the n-type structure.

[0013] As an improvement to the above technical solution, the limiting component includes a fixing ring 1 inserted into the surfaces of connector 1 and connector 2. The end of the fixing ring 1 is provided with a fixing ring 2 coaxially connected to it. The diameter of the fixing ring 2 is larger than the diameter of the fixing ring 1. The end of the fixing ring 2 away from the fixing ring 1 is provided with an annular elastic element. The elastic element extends obliquely along the direction from the fixing ring 2 to the fixing ring 1.

[0014] As an improvement to the above technical solution, the tightening assembly includes a threaded rod that is threadedly connected to a fixing ring, and a pressing part is provided on the surface of the threaded rod within the area enclosed by the elastic element, and a limiting part is provided on a section of the threaded rod within the fixing ring.

[0015] As an improvement to the above technical solution, multiple sets of V-shaped springs are provided between the inner wall of the second fixed ring and the elastic element.

[0016] As an improvement to the above technical solution, multiple sets of V-shaped notches are provided at one end of the elastic member away from the second fixing ring.

[0017] As an improvement to the above technical solution, the limiting part includes a mounting sleeve that is fixedly sleeved on the surface of the threaded rod. A limiting sleeve is provided at the end of the mounting sleeve away from the extrusion part, and the diameter of the limiting sleeve gradually increases from the direction of the first fixing ring to the second fixing ring.

[0018] As an improvement to the above technical solution, the series assembly includes a series rod, which passes through the connecting sleeves of connector one and connector two in sequence to control multiple sets of connector one and multiple sets of connector two to be locked in series. Nuts are threaded onto both ends of the series rod.

[0019] The beneficial effects of this invention are:

[0020] A connecting assembly can be formed by combining multiple sets of connector one and multiple sets of connector two. The number of connector one and connector two can be freely combined, so the number of connector one and connector two can be selected according to actual usage requirements to achieve modular installation. The aluminum busbar can be installed close to the surface of the connecting assembly. The side of the connecting assembly away from the aluminum busbar is provided with a receiving groove. The battery cell is installed in the receiving groove. The battery cell and the aluminum busbar are electrically connected through conductive parts. Therefore, the positive and negative electrodes can be separated by the connecting assembly, thereby reducing the risk of short circuit. Attached Figure Description

[0021] Figure 1 This is a front view of the overall structure of the present invention;

[0022] Figure 2 This is a rear view of the overall structure of the present invention;

[0023] Figure 3This is a schematic diagram of the connection structure between connector one and connector two in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of connector one in this invention;

[0025] Figure 5 This is a schematic diagram of the structure of connector two in this invention;

[0026] Figure 6 This is a schematic diagram of the aluminum busbar structure in this invention;

[0027] Figure 7 This is a schematic diagram of the connection structure between the limiting component and the tightening component in this invention;

[0028] Figure 8 This is a schematic diagram of the limiting part in the present invention;

[0029] Figure 9 This is a right view of the limiting component in this invention.

[0030] Reference numerals: 1. Connecting assembly; 11. Receiving groove; 12. Connector one; 13. Connector two; 14. Connecting sleeve; 15. Limiting component; 2. Connecting rod; 21. Nut; 3. Aluminum busbar; 31. Slot; 32. Slot; 4. Conductive component; 5. Tightening assembly; 51. Extrusion part; 52. Limiting part; 521. Limiting sleeve; 522. Mounting sleeve; 53. Threaded rod; 6. Limiting assembly; 61. Fixing ring one; 62. Fixing ring two; 63. Elastic component; 631. V-shaped notch; 64. V-shaped spring. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] Modular connection bar, including: connection component 1, the connection component 1 includes multiple sets of first connectors 12 and multiple sets of second connectors 13, and two adjacent sets of second connectors 13 or two adjacent sets of first connectors 12 and second connectors 13 form a receiving groove 11 for installing battery cells;

[0033] A series assembly is disposed at both ends of connector 12 and connector 2, for connecting multiple sets of connector 12 and connector 2 13 in series; a limiting assembly 6 is disposed on the surface of connector 12 and connector 2 13; an aluminum busbar 3 is disposed on the surface of connecting assembly 1, with multiple sets of aluminum busbars 3 arranged sequentially along the arrangement direction of connecting assembly 1, and the surface of the aluminum busbar 3 having several slots 31; a tightening assembly 5 is disposed at one end through the aluminum busbar 3 and extends into the interior of the limiting assembly 6, for controlling the aluminum busbar 3 to be limited to the surface of connecting assembly 1.

[0034] Two sets of series components are provided. These two sets are sequentially passed through both ends of multiple sets of connector 12 and multiple sets of connector 2 13, allowing them to be combined to form connecting component 1. The number of connectors 12 and 2 13 can be freely combined, thus allowing selection based on actual usage requirements. Multiple aluminum busbars 3 are then sequentially arranged on the surface of connecting component 1. One end of the tightening component 5 passes through the aluminum busbar 3, and then it is inserted into the limiting component 6, causing the aluminum busbars to... The aluminum busbar 3 can be installed close to the surface of the connecting component 1. The connecting component 1 has a receiving groove 11 on the side away from the aluminum busbar 3. The battery cell is installed in the receiving groove 11. The conductive element 4 is L-shaped. One end of the conductive element 4 passes through the slot 31 of the aluminum busbar 3, so that one side of the conductive element 4 is in contact with the surface of the aluminum busbar 3. The other end of the conductive element 4 is electrically connected to the battery cell inside the receiving groove 11. Therefore, the positive and negative electrodes can be separated by the connecting component 1, thereby reducing the risk of short circuit. The first connecting element 12 and the second connecting element 13 are made of insulating material.

[0035] In one embodiment, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 Both ends of the first connector 12 and the second connector 13 are provided with connecting sleeves 14. The surface of the connecting sleeve 14 at the lower position of the first connector 12 and the second connector 13 is provided with an n-shaped limiting member 15. The series assembly passes through the connecting sleeve 14 and uses the series assembly to install multiple sets of first connector 12 and second connector 13 in series. The installation through the connecting sleeve 14 can effectively avoid the problem of relative offset between the first connector 12 and the second connector 13 during installation.

[0036] To improve the stability of aluminum busbar 3 installation, refer to Figure 1 and Figure 6 The bottom of the aluminum busbar 3 is provided with a slot 32 that is adapted to the n-shaped limiting member 15. The slot 32 and the n-shaped limiting member 15 cooperate with each other to position the bottom of the aluminum busbar 3, thereby further improving the stability of the installation of the aluminum busbar 3. This allows the aluminum busbar 3 to be attached and fixed to the connecting component 1, preventing the bottom of the aluminum busbar 3 from shaking. Furthermore, the cooperation between the limiting member 15 and the slot 32 improves the positioning accuracy.

[0037] To avoid vibration in the environment, refer to Figure 1 , Figure 7 as well as Figure 9The loosening of the tightening component 5 and the limiting component 6 causes the aluminum busbar 3 to wobble, resulting in poor contact. The limiting component 6 includes a fixing ring 61 inserted into the surfaces of the first connector 12 and the second connector 13. The end of the first fixing ring 61 is provided with a coaxially connected fixing ring 62. The diameter of the second fixing ring 62 is larger than that of the first fixing ring 61. The end of the second fixing ring 62 away from the first fixing ring 61 is provided with an annular elastic element 63. The elastic element 63 extends obliquely along the direction from the second fixing ring 62 to the first fixing ring 61. The tightening component 5 is inserted along the direction from the second fixing ring 62 to the first fixing ring 61. During the insertion process, the surface of the tightening component 5 will squeeze the elastic element 63, causing the elastic element 63 to deform, which facilitates the insertion of the tightening component 5. When vibration occurs, when the tightening component 5 rotates in the opposite direction, the elastic element 63 will squeeze the tightening component 5, holding the tightening component 5 tightly, effectively preventing the aluminum busbar 3 from loosening due to the reverse rotation of the tightening component 5.

[0038] In one embodiment, reference Figure 7 and Figure 8 The tightening assembly 5 includes a threaded rod 53 threadedly connected to a fixing ring 61. A pressing part 51 is provided on the surface of the threaded rod 53 within the area enclosed by the elastic element 63. A limiting part 52 is provided on the surface of the threaded rod 53 within the fixing ring 62. When the threaded rod 53 rotates in the reverse direction, the threaded rod 53 drives the limiting part 52 to move. With the cooperation of the elastic element 63, the limiting part 52 can act as a barb to prevent the threaded rod 53 from exiting. Therefore, it can effectively avoid the problem of loosening of the aluminum strip 3 due to reverse rotation. Under the action of the pressing part 51, the threaded rod 53 can rotate in the forward direction and enter the limiting assembly 6, which can further improve the tightness of the installation.

[0039] To improve the anti-retrieval effect of threaded rod 53, refer to Figure 7 Multiple sets of V-shaped springs 64 are provided between the inner wall of the second fixing ring 62 and the elastic member 63. The V-shaped springs 64 can further increase the contact force of the elastic member 63, thereby improving the clamping force.

[0040] To ensure the deformability of elastic element 63, refer to... Figure 9 The elastic member 63 has multiple sets of V-shaped notches 631 at one end away from the fixed ring 62. When the elastic member 63 is deformed, the V-shaped notches 631 will expand.

[0041] In one embodiment, reference Figure 8The limiting part 52 includes a mounting sleeve 522 fixedly sleeved on the surface of the threaded rod 53. A limiting sleeve 521 is provided at the end of the mounting sleeve 522 away from the extrusion part 51. The diameter of the limiting sleeve 521 gradually increases from the first fixing ring 61 to the second fixing ring 62. It is fixedly sleeved on the surface of the threaded rod 53 by the mounting sleeve 522. The limiting sleeve 521 has a conical cavity structure, which can play the role of barbs in conjunction with the elastic element 63.

[0042] In one embodiment, reference Figure 1 and Figure 2 The series assembly includes a series rod 2, which passes through the connecting sleeves 14 of connector 12 and connector 2 13 in sequence to control the series locking of multiple sets of connector 12 and multiple sets of connector 2 13. Nuts 21 are threaded onto both ends of the series rod 2. The length of the series rod 2 is selected according to the length of the connecting assembly 1 to be spliced. The connecting sleeves 14 at both ends of connector 12 and connector 2 13 are inserted into the series rod, and the multiple sets of connector 12 and multiple sets of connector 2 13 are locked and installed by the nuts 21 at both ends of the series rod 2.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention.

Claims

1. A modular connecting strip, characterized in that, include: The connecting component (1) includes multiple sets of connector one (12) and multiple sets of connector two (13), and two adjacent sets of connector two (13) or two adjacent sets of connector one (12) and connector two (13) form a receiving groove (11) for installing the battery cell. A series assembly is provided at both ends of connector one (12) and connector two (13) for connecting multiple sets of connector one (12) and connector two (13) in series; Limiting component (6) is disposed on the surfaces of connector one (12) and connector two (13); Aluminum busbars (3) are disposed on the surface of the connecting component (1). Multiple sets of aluminum busbars (3) are arranged sequentially along the arrangement direction of the connecting component (1). Several slots (31) are opened on the surface of the aluminum busbars (3). Tightening assembly (5), one end of which passes through the aluminum strip (3) and extends into the limiting assembly (6) to control the aluminum strip to be limited to the surface of the connecting assembly (1); The limiting component (6) includes a fixing ring 1 (61) inserted into the surfaces of connector 1 (12) and connector 2 (13). The end of the fixing ring 1 (61) is provided with a fixing ring 2 (62) coaxially connected. The diameter of the fixing ring 2 (62) is larger than the diameter of the fixing ring 1 (61). The end of the fixing ring 2 (62) away from the fixing ring 1 (61) is provided with an annular elastic element (63). The elastic element (63) extends obliquely along the direction from the fixing ring 2 (62) to the fixing ring 1 (61). The tightening component (5) includes a threaded rod (53) threadedly connected to the fixing ring 1 (61). The surface of the threaded rod (53) and the area enclosed by the elastic element (63) is provided with a pressing part (51). The section of the threaded rod (53) and the part inside the fixing ring 2 (62) is provided with a limiting part (52).

2. The modular connecting strip according to claim 1, characterized in that: Both ends of the first connector (12) and the second connector (13) are provided with connecting sleeves (14), and the surface of the connecting sleeves (14) located at the lower position of the first connector (12) and the second connector (13) is provided with n-shaped limiting members (15).

3. The modular connecting strip according to claim 2, characterized in that: The bottom of the aluminum strip (3) has a slot (32) that is compatible with the limiting member (15) of the n-type structure.

4. The modular connecting strip according to claim 1, characterized in that: Multiple sets of V-shaped springs (64) are provided between the inner wall of the fixed ring (62) and the elastic element (63).

5. The modular connecting strip according to claim 1, characterized in that: The elastic element (63) has multiple sets of V-shaped notches (631) at one end away from the fixed ring (62).

6. The modular connection bar according to claim 1, characterized in that: The limiting part (52) includes a mounting sleeve (522) fixedly sleeved on the surface of the threaded rod (53). The end of the mounting sleeve (522) away from the extrusion part (51) is provided with a limiting sleeve (521). The diameter of the limiting sleeve (521) gradually increases from the first fixing ring (61) to the second fixing ring (62).

7. The modular connecting strip according to claim 2, characterized in that: The series assembly includes a series rod (2), which passes through the connecting sleeve (14) of connector one (12) and connector two (13) in sequence to control the series locking of multiple sets of connector one (12) and multiple sets of connector two (13). Nuts (21) are threaded onto both ends of the series rod (2).

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