Voltage acquisition device

Abstract

The utility model provides a voltage acquisition device, which comprises an aluminum bar and a nickel sheet assembly, and is characterized in that the aluminum bar is used for being electrically connected to a battery module; the nickel sheet assembly comprises a nickel sheet body and a pressing module; the nickel sheet body is welded on the aluminum bar; the nickel sheet body is provided with a bare copper positioning area and a tin plating area; the tin plating area is arranged on one side of the bare copper positioning area; the pressing module is connected to the nickel sheet body, and the pressing module is used for pressing the FFC wire, so that the FFC wire is pressed by the pressing structure, the positioning effect of the FFC wire relative to the nickel sheet body is ensured, the welding of the FFC wire and the nickel sheet body is ensured, pseudo soldering or missing soldering is avoided, the connection stability between the FFC wire and the nickel sheet body is ensured, and the service life of the nickel sheet body is prolonged. Therefore, the FFC wire is connected with the aluminum bar and is electrically connected with the battery module through the aluminum bar, so that voltage acquisition is realized, and meanwhile, the bare copper end of the FFC wire is welded in the tin plating area and is positioned in the bare copper positioning area, so that welding between the bare copper end of the FFC wire and the nickel sheet body is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of voltage acquisition devices, in particular to a voltage acquisition device. Background Art

[0002] With the development of science and technology, new energy vehicles use batteries as driving sources. At present, the voltage signal of the battery is mainly collected through a voltage acquisition device. Therefore, the reliability of the voltage acquisition device determines the reliability of the battery voltage collection.

[0003] In the prior art, the existing voltage collection device includes an aluminum busbar, a nickel sheet body and an FFC wire. The nickel sheet body is connected to the aluminum busbar, and the FFC wire is used to weld the nickel sheet body. However, there is no pressing structure and no pressing effect on the FFC wire. During the welding process of the FFC wire and the nickel sheet body, the FFC wire is easy to deviate from the nickel sheet body, affecting the welding effect of the FFC wire of the voltage collection device. Utility Model Content

[0004] The utility model aims to provide a voltage collection device, wherein an aluminum busbar is used to be electrically connected to a battery module; a nickel sheet assembly is arranged on one side of the aluminum busbar; the nickel sheet assembly comprises a nickel sheet body and a crimping module; the nickel sheet body is welded to the aluminum busbar; the nickel sheet body is provided with a bare copper positioning area and a tin-plated area; the tin-plated area is arranged on one side of the bare copper positioning area; the crimping module is connected to the nickel sheet body, and the crimping module is used to press the FFC wire so that the FFC wire is pressed by the crimping structure, thereby ensuring the positioning effect of the FFC wire relative to the nickel sheet body, thereby ensuring the welding of the FFC wire and the nickel sheet body, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire and the nickel sheet body, thereby realizing the connection of the FFC wire to the aluminum busbar and electrically connecting the battery module via the aluminum busbar, so as to realize voltage collection, and at the same time, the bare copper end of the FFC wire is welded to the tin-plated area and positioned in the bare copper positioning area, thereby ensuring the welding between the bare copper end of the FFC wire and the nickel sheet body.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A voltage collection device is used for collecting voltage of a power battery, and the voltage collection device comprises:

[0007] Aluminum busbar, used for electrical connection to the battery module;

[0008] A nickel sheet assembly is arranged on one side of the aluminum bar; the nickel sheet assembly includes a nickel sheet body and a crimping module; the nickel sheet body is welded to the aluminum bar; the nickel sheet body is provided with a bare copper positioning area and a tin-plated area; the tin-plated area is arranged on one side of the bare copper positioning area; the crimping module is connected to the nickel sheet body, and the crimping module is used to press the FFC wire, and the bare copper end of the FFC wire is welded to the tin-plated area and positioned in the bare copper positioning area.

[0009] Optionally, the crimping module includes a crimping arm, which is arranged on one side of the nickel sheet body, one end of which is connected to the nickel sheet body and elastically swings toward the nickel sheet body to elastically press the FFC wire.

[0010] Optionally, a penetration space is formed between the inner side wall of the crimping support arm and the outer side wall of the nickel sheet body, and the penetration space is used for the FFC wire to be penetrated; the penetration space is spatially deformed as the crimping support arm swings;

[0011] The inner side wall of the pressing support arm presses against the outer jacket of the FFC wire.

[0012] Optionally, the pressing support arm includes a support arm body and a first bending portion; the support arm body and the first bending portion are an integrated structure;

[0013] One end of the first bending portion is connected to the nickel sheet body, and the other end is bent upward;

[0014] One end of the arm body is connected to the other end of the first bending portion and extends toward the outer side wall of the nickel sheet body.

[0015] Optionally, there is an arched transition between the first bending portion and the arm body; the other end of the first bending portion extends in an arched shape toward one end of the arm body.

[0016] Optionally, one end of the arm body away from the first bending portion has a chamfer.

[0017] Optionally, the crimping module and the bare copper positioning area are arranged on both sides of the tin-plated area;

[0018] The outer jacket of the FFC wire is passed through the crimping module; the screw copper end of the FFC wire passes through the tin-plated area and is welded to the tin-plated area.

[0019] Optionally, the end of the spiral copper end of the FFC wire is inserted into the bare copper positioning area and is positioned and connected to the bare copper positioning area.

[0020] Optionally, the bare copper positioning area is a positioning groove.

[0021] Optionally, the tin-plated area is arranged adjacent to the bare copper positioning area.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model provides a voltage collection device, wherein an aluminum busbar is used for being electrically connected to a battery module; a nickel sheet assembly is arranged at one side of the aluminum busbar; the nickel sheet assembly comprises a nickel sheet body and a crimping module; the nickel sheet body is welded to the aluminum busbar; the nickel sheet body is provided with a bare copper positioning area and a tin-plated area; the tin-plated area is arranged at one side of the bare copper positioning area; the crimping module is connected to the nickel sheet body, and the crimping module is used for pressing an FFC wire, so that the FFC wire is pressed by the crimping structure, thereby ensuring the positioning effect of the FFC wire relative to the nickel sheet body, thereby ensuring the welding of the FFC wire and the nickel sheet body, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire and the nickel sheet body, thereby realizing the connection of the FFC wire to the aluminum busbar, and electrically connecting the battery module via the aluminum busbar, so as to realize voltage collection, and at the same time, the bare copper end of the FFC wire is welded to the tin-plated area and positioned in the bare copper positioning area, thereby ensuring the welding between the bare copper end of the FFC wire and the nickel sheet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution in the embodiment of the present application, the following description will be made in conjunction with the accompanying drawings. In the following description, the same figure numbers represent the same parts.

[0025] Figure 1 A schematic diagram of a voltage collection device according to a first embodiment of the present application is shown.

[0026] Figure 2 A front view of a voltage collection device according to a first embodiment of the present application is shown.

[0027] Figure 3 for Figure 2 Section view toward A.

[0028] Figure 4 A schematic diagram of a nickel sheet assembly of a voltage collection device according to a first embodiment of the present application is shown.

[0029] Figure 5 for Figure 4 A partial enlarged view of the part.

[0030] Figure 6 A schematic diagram of a nickel sheet assembly of a voltage collection device according to a second embodiment of the present application is shown.

[0031] Figure 7 A schematic diagram of a nickel sheet assembly of a voltage collection device according to a third embodiment of the present application is shown.

[0032] Figure 8 A schematic diagram of a nickel sheet assembly of a voltage collection device according to a fourth embodiment of the present application is shown.

[0033] Fig. 9 A schematic diagram of a nickel sheet assembly of a voltage collection device according to a fifth embodiment of the present application is shown.

[0034] Reference numerals

[0035] 100. Voltage collection device;

[0036] 10. Aluminum bar;

[0037] 20. Nickel sheet assembly; 21. Nickel sheet body; 211. Bare copper positioning area; 212. Tin-plated area; 22. Crimping module; 221. Crimping arm; 221a. Penetration space; 2211. Arm body; 2212. First bending portion; 22111. Chamfer;

[0038] 30. FFC wire. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0040] Please refer to the attached Figures 1 to 9 An embodiment of the present application provides a voltage collection device 100 , which is applied to voltage collection of a power battery. The voltage collection device 100 includes an aluminum bar 10 and a nickel sheet assembly 20 , and the nickel sheet assembly 20 is disposed on one side of the aluminum bar 10 .

[0041] In the embodiment of the present application, the aluminum busbar 10 is used to be electrically connected to the battery module, so that the voltage acquisition device 100 can be electrically connected to the battery module through the aluminum busbar 10, thereby facilitating the voltage acquisition device 100 and the battery module to be powered on, and further facilitating the voltage acquisition device 100 to collect the voltage signal of the battery module.

[0042] In an embodiment of the present application, the nickel sheet assembly 20 is arranged on one side of the aluminum bus 10; the nickel sheet assembly 20 includes a nickel sheet body 21 and a crimping module 22; the nickel sheet body 21 is welded to the aluminum bus 10; the nickel sheet body 21 is provided with a bare copper positioning area 211 and a tin-plated area 212; the tin-plated area 212 is arranged on one side of the bare copper positioning area; the crimping module 22 is connected to the nickel sheet body 21, and the crimping module 22 is used to press the FFC wire 30, and the bare copper end of the FFC wire 30 is welded to the tin-plated area 212 and positioned in the bare copper positioning area 211.

[0043] At this time, the nickel sheet assembly 20 is composed of a nickel sheet body 21 and a crimping module 22. The nickel sheet body 21 is welded to the aluminum bar 10 so that the nickel sheet body 21 is fixed to the aluminum bar 10. The nickel sheet body 21 is provided with a bare copper positioning area 211 and a tinned area 212. The tinned area 212 is arranged on the side of the bare copper positioning area facing away from the aluminum bar 10. The crimping module 22 is arranged on the upper side of the nickel sheet body 21. The crimping module 22 is connected to the nickel sheet body 21. The crimping module 22 is used to press the FFC wire 30 so that the FFC wire 30 is pressed by the crimping structure, thereby ensuring that the FFC wire 30 is relatively close to the nickel sheet body. 21 has a positioning effect, thereby ensuring the welding of the FFC wire 30 and the nickel sheet body 21, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21, so that the FFC wire 30 is connected to the aluminum bus 10, and is electrically connected to the battery module through the aluminum bus 10, so as to facilitate voltage collection. At the same time, the bare copper end of the FFC wire 30 is welded to the tin-plated area 212 and positioned in the bare copper positioning area 211, so as to ensure the welding between the bare copper end of the FFC wire 30 and the nickel sheet body 21. Optionally, the tin-plated area 212 is arranged adjacent to the bare copper positioning area 211.

[0044] The crimping module 22 includes a crimping arm 221, which is arranged on one side of the nickel sheet body 21, one end of which is connected to the nickel sheet body 21, and elastically swings toward the nickel sheet body 21 to elastically press the FFC wire 30. At this time, the crimping arm 221 is arranged on the upper side of the nickel sheet body 21, and one end of the crimping arm 221 is connected to the nickel sheet body 21, so that one end of the crimping arm 221 is fixed to the nickel sheet body 21, and the other end of the crimping arm 221 can contact or detach from the nickel sheet body. 21, the pressing arm 221 elastically swings toward the nickel sheet body 21, and the FFC wire 30 is located between the pressing arm 221 and the nickel sheet body 21, and elastically presses the FFC wire 30, so that the FFC wire 30 is pressed by the pressing arm 221, thereby ensuring the positioning effect of the FFC wire 30 relative to the nickel sheet body 21, thereby ensuring the welding of the FFC wire 30 and the nickel sheet body 21, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21.

[0045] A penetration space 221a is formed between the inner side wall of the pressing arm 221 and the outer side wall of the nickel sheet body 21. The penetration space 221a is used for the FFC wire 30 to be penetrated, so that the FFC wire 30 is located between the inner side wall of the pressing arm 221 and the outer side wall of the nickel sheet body 21. The penetration space 221a is deformed as the pressing arm 221 swings. When the inner side wall of the pressing arm 221 is away from the outer side wall of the nickel sheet body 21, the penetration space 221a is larger. 1 is closer to the outer wall of the nickel sheet body 21, the smaller the penetration space 221a is; the inner wall of the pressing arm 221 presses the outer sleeve of the FFC wire 30, so that the FFC wire 30 is pressed by the inner wall of the pressing arm 221, thereby ensuring the positioning effect of the FFC wire 30 relative to the nickel sheet body 21, thereby ensuring the welding of the FFC wire 30 and the nickel sheet body 21, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21.

[0046] The pressing arm 221 includes an arm body 2211 and a first bending portion 2212; the arm body 2211 and the first bending portion 2212 are an integrated structure, so as to improve the connection effect between the arm body 2211 and the first bending portion 2212, thereby ensuring the connection stability between the arm body 2211 and the first bending portion 2212; one end of the first bending portion 2212 is connected to the nickel sheet body 21, and the other end is bent upward; one end of the arm body 2211 is connected to the other end of the first bending portion 2212, and extends toward the outer wall of the nickel sheet body 21, so that there is a gap between the arm body 2211 and the nickel sheet body 21, thereby facilitating the formation of a penetration space 221a.

[0047] There is an arched transition between the first bending portion 2212 and the arm body 2211; the other end of the first bending portion 2212 extends in an arched shape toward one end of the arm body 2211, so that there is a gap between the arm body 2211 and the nickel sheet body 21, thereby facilitating the formation of the penetration space 221a.

[0048] One end of the support arm body 2211 away from the first bending portion 2212 has a chamfer 22111 to prevent the support arm body 2211 from being too sharp and cutting the user, thereby enhancing the aesthetics.

[0049] The crimping module 22 and the bare copper positioning area 211 are arranged on both sides of the tinned area 212, so that the tinned area 212 is located between the crimping module 22 and the bare copper positioning area 211, so that the two ends of the FFC wire 30 are positioned by the crimping module 22 and the bare copper positioning area 211, so that the screw copper end of the FFC wire 30 is arranged relative to the tinned area 212. Optionally, the crimping module 22 also has a variety of forms, which are the second embodiment to the fifth embodiment, such as Figures 6 to 9 .

[0050] The outer jacket of the FFC wire 30 is passed through the crimping module 22 ; the screw copper end of the FFC wire 30 passes through the tinned area 212 and is welded to the tinned area 212 , so as to ensure the welding between the bare copper end of the FFC wire 30 and the nickel sheet body 21 .

[0051] The end of the spiral copper end of the FFC wire 30 is inserted into the bare copper positioning area 211 and is positioned and connected to the bare copper positioning area 211, so as to ensure the position accuracy of the end of the spiral copper end of the FFC wire 30 and the bare copper positioning area 211, avoid the end of the spiral copper end of the FFC wire 30 from being offset, thereby ensuring the welding between the bare copper end of the FFC wire 30 and the nickel sheet body 21, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21, so as to realize the connection of the FFC wire 30 to the aluminum bus 10, and electrically connect the battery module through the aluminum bus 10, so as to realize voltage collection.

[0052] The bare copper positioning area 211 is a positioning groove, so that the end of the screw copper end of the FFC wire 30 can be positioned with the inner wall of the positioning groove, ensuring the position accuracy of the end of the screw copper end of the FFC wire 30 and the positioning groove, avoiding cold solder joints or empty solder joints, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21, so that the FFC wire 30 can be connected to the aluminum bus 10, and electrically connected to the battery module through the aluminum bus 10, so as to realize voltage collection.

[0053] Compared with the prior art, the beneficial effects of the utility model are:

[0054] The utility model provides a voltage collection device 100, wherein an aluminum bar 10 is used to be electrically connected to a battery module; a nickel sheet assembly 20 is arranged on one side of the aluminum bar 10; the nickel sheet assembly 20 comprises a nickel sheet body 21 and a crimping module 22; the nickel sheet body 21 is welded to the aluminum bar 10; the nickel sheet body 21 is provided with a bare copper positioning area 211 and a tin-plated area 212; the tin-plated area 212 is arranged on one side of the bare copper positioning area; the crimping module 22 is connected to the nickel sheet body 21, and the crimping module 22 is used to press the FFC wire 30, so that the FFC wire 30 is pressed by the pressing structure to ensure The positioning effect of the FFC wire 30 relative to the nickel sheet body 21 is improved, thereby ensuring the welding of the FFC wire 30 and the nickel sheet body 21, avoiding cold welding or empty welding, and ensuring the connection stability between the FFC wire 30 and the nickel sheet body 21, so that the FFC wire 30 is connected to the aluminum bus 10, and is electrically connected to the battery module through the aluminum bus 10, so as to realize voltage collection. At the same time, the bare copper end of the FFC wire 30 is welded to the tin-plated area 212 and positioned in the bare copper positioning area 211, so as to ensure the welding between the bare copper end of the FFC wire 30 and the nickel sheet body 21.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A voltage collection device, characterized in that: Applied to voltage collection of power batteries, the voltage collection device comprises: Aluminum busbar, used for electrical connection to the battery module; A nickel sheet assembly is arranged on one side of the aluminum bar; the nickel sheet assembly includes a nickel sheet body and a crimping module; the nickel sheet body is welded to the aluminum bar; the nickel sheet body is provided with a bare copper positioning area and a tin-plated area; the tin-plated area is arranged on one side of the bare copper positioning area; the crimping module is connected to the nickel sheet body, and the crimping module is used to press the FFC wire, and the bare copper end of the FFC wire is welded to the tin-plated area and positioned in the bare copper positioning area.

2. The voltage acquisition device according to claim 1, characterized in that: The crimping module includes a crimping arm, which is arranged on one side of the nickel sheet body. One end of the crimping arm is connected to the nickel sheet body and elastically swings toward the nickel sheet body to elastically press the FFC wire.

3. The voltage acquisition device according to claim 2, characterized in that: A penetration space is formed between the inner side wall of the crimping support arm and the outer side wall of the nickel sheet body, and the penetration space is used for the FFC wire to penetrate; the penetration space undergoes spatial deformation as the crimping support arm swings; The inner side wall of the pressing support arm presses against the outer jacket of the FFC wire.

4. The voltage acquisition device according to claim 2, characterized in that: The pressing support arm comprises a support arm body and a first bending portion; the support arm body and the first bending portion are an integrated structure; One end of the first bending portion is connected to the nickel sheet body, and the other end is bent upward; One end of the arm body is connected to the other end of the first bending portion and extends toward the outer side wall of the nickel sheet body.

5. The voltage acquisition device according to claim 4, characterized in that: An arched transition is formed between the first bent portion and the arm body; the other end of the first bent portion extends in an arched shape toward one end of the arm body.

6. The voltage acquisition device according to claim 4, characterized in that: One end of the arm body away from the first bending portion has a chamfer.

7. The voltage acquisition device according to any one of claims 1 to 6, characterized in that: The crimping module and the bare copper positioning area are arranged on both sides of the tin-plated area; The outer jacket of the FFC wire is passed through the crimping module; the screw copper end of the FFC wire passes through the tin-plated area and is welded to the tin-plated area.

8. The voltage acquisition device according to claim 7, characterized in that: The end of the screw copper end of the FFC wire is inserted into the bare copper positioning area and is positioned and connected with the bare copper positioning area.

9. The voltage acquisition device according to claim 8, characterized in that: The bare copper positioning area is a positioning groove.

10. The voltage acquisition device according to claim 8, characterized in that: The tin-plated area is arranged adjacent to the bare copper positioning area.

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