CN210744214U - Combined type connecting terminal and electric connection assembly - Google Patents
Combined type connecting terminal and electric connection assembly Download PDFInfo
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- CN210744214U CN210744214U CN201921924180.7U CN201921924180U CN210744214U CN 210744214 U CN210744214 U CN 210744214U CN 201921924180 U CN201921924180 U CN 201921924180U CN 210744214 U CN210744214 U CN 210744214U
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Abstract
The utility model relates to a combined type connecting terminal and electric connection component. The composite connecting terminal comprises a first metal terminal and a second metal terminal; the first metal terminal includes a terminal main body and a crimping portion; the crimp part is connected with the terminal body; the crimping part is used for being electrically connected with the first mating part; the second metal terminal is fixedly connected and electrically connected with the terminal main body; the second metal terminal is used for being electrically connected with a second mating component; the first metal terminal and the second metal terminal are independent forming parts respectively and are different in material. The utility model provides a sampling circuit subassembly and battery package in combined type connecting terminal, electric connection component, the battery package, it is connected with first pair of parts of joining in marriage to set up crimping portion on the adoption first metal terminal. The crimping part can be bent, so that the crimping part can be connected with the first mating part in a holding mode, complex processes such as welding and the like are omitted, and the crimping part is convenient to produce, assemble and use.
Description
Technical Field
The utility model relates to a combined type connecting terminal and electric connection component.
Background
The battery pack needs to sample voltage of each battery cell, the sampling lines are various, and the application of flexible flat wires (FPC) and flexible circuit boards (FFC) is more and more common. The flexible flat wire (FPC) and the flexible circuit board (FFC) are both conductive by adopting copper conductors. For sampling signals from the aluminum bus bar, a transition from aluminum to copper is necessary for connecting to the sampling signal line FFC/FPC. How to conveniently connect two conductors made of different materials is one of the important problems to be solved in the field.
In addition, the cases of adopting an FPC scheme in the battery pack as voltage sampling signal transmission are many, and Polyimide (PI) is mostly adopted as an insulating shell of the FPC. The reason for this is that the FPC is connected to the aluminum busbar by a nickel plate. The back together with FPC reflow soldering is nickel piece, passes through laser welding with nickel piece and aluminum product busbar again and is connected together, and such design just needs high temperature resistance FPC insulating layer, and the very expensive polyimide material is all chooseed for use to the past, can increase manufacturing cost like this undoubtedly.
SUMMERY OF THE UTILITY MODEL
One of the objectives of the present invention is to provide a composite connection terminal and an electrical connection assembly that can be conveniently used to overcome the disadvantages of the prior art.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
combined type connecting terminal, its characterized in that includes:
a first metal terminal including a terminal body and a crimping portion; the crimp part is connected with the terminal body; the crimping part is used for being electrically connected with the first mating part;
a second metal terminal fixedly connected and electrically connected to the terminal body; the second metal terminal is used for being electrically connected with a second mating component;
the first metal terminal and the second metal terminal are independent forming parts respectively and are different in material.
According to an embodiment of the invention, the crimping portion is a bendable crimping portion; the crimping part comprises a sharp-pointed end and a connecting end; the connecting end is connected with the terminal main body, and the spine end is freely arranged; the first metal terminal further comprises a connecting sheet, the connecting sheet is connected with the terminal main body and protrudes out of the terminal main body, and the crimping part is connected with the connecting sheet and connected with the terminal main body through the connecting sheet.
According to the utility model discloses an embodiment, the surface of second metal terminal is provided with the welding part, first metal terminal covers the surface at welding part place sets up except that the all the other parts of welding part or whole.
According to the utility model discloses an embodiment, the terminal main part is provided with the through-hole, the weld part is located through-hole department.
According to an embodiment of the present invention, the welding part is located on the terminal main body side.
According to an embodiment of the present invention, the terminal body is plate-shaped, and the second metal terminal is plate-shaped; the second metal terminal is connected with a bending piece; the terminal main body and the second metal terminal are arranged in a laminated mode; the bent piece is wrapped at the edge of the terminal main body.
According to the utility model discloses an embodiment, the piece of buckling with the terminal main part passes through welded connection.
According to an embodiment of the present invention, the first metal terminal is a copper terminal; the second metal terminal is a nickel terminal.
An electrical connection assembly, comprising:
the composite connecting terminal;
a first mating member that is press-connected to the first metal terminal.
According to an embodiment of the present invention, the first mating member is a flexible flat wire or a flexible circuit board; the flexible flat wire or the flexible circuit board is provided with a copper conductor.
According to an embodiment of the present invention, the device further comprises a bracket and a second mating part;
the second pair of fittings is fixedly supported on the bracket and is connected with the second metal terminal in a welding mode.
According to an embodiment of the invention, the second mating member is an aluminum busbar.
According to an embodiment of the present invention, the apparatus further comprises a temperature sensor electrically connected to the first mating part; the first mating part is a flexible flat wire or a flexible circuit board.
According to the utility model discloses an embodiment, electric connection component is sampling circuit subassembly in the battery package.
The utility model provides a combined type connecting terminal and electric connection component adopts and sets up crimping portion and first pair of joining in marriage the part and be connected on the first metal terminal. The crimping part can be bent, so that the crimping part can be connected with the first mating part in a holding mode, complex processes such as welding and the like are omitted, and the crimping part is convenient to produce, assemble and use. The crimping part is provided with a sharp end which can be used for piercing an insulating shell of the flexible flat wire so as to be electrically connected with the copper conductor, and the assembly is convenient. The connecting sheet is protruded out of the terminal main body, so that the crimping part can be conveniently connected with the first mating part. Set up the through-hole, can pass through the through-hole with the welding of second metal terminal and second butt joint terminal, convenient operation. The second metal terminal is provided with a bending piece, the bending piece is wrapped at the edge of the terminal main body to connect the terminal main body and the terminal main body after being bent, and the connection stability can be ensured by matching welding. The first metal terminal and the second metal terminal are made of different materials, so that the first metal terminal and the second metal terminal can be respectively connected with conductors made of different materials, such as a copper conductor and an aluminum conductor. The first metal terminal and the first paired components are connected in a holding mode, and connection modes with high temperature such as reflow soldering are omitted, so that the temperature resistance requirement of the insulating shell of the first paired components can be lowered, and the production cost is lowered by using low-cost materials. A plurality of independent flexible flat wires are arranged in the battery pack and can be respectively used for different sampling circuits, mutual influence is avoided, and at least part of the flexible flat wires can adopt a polyethylene glycol terephthalate shell with lower cost.
Drawings
Fig. 1 is the schematic structural diagram of the sampling circuit assembly of the present invention.
Fig. 2 is a schematic structural diagram of a sampling circuit assembly of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic structural diagram of a composite connection terminal in embodiment 1.
Fig. 5 is a schematic structural diagram of the composite connection terminal in the use state shown in fig. 4.
Fig. 6 is a schematic structural diagram of a composite connection terminal in embodiment 2.
Detailed Description
Example 1
As shown in fig. 1, 2 and 3, the electrical connection assembly 100 may be used for a circuit assembly for sampling in a battery pack, particularly for sampling voltage, temperature, etc. of a battery cell. The structure includes a first mating member 110, a second mating member 120, and a composite connection terminal 130. The first mating member 110 is used for transmitting electrical signals, and may employ conventional signal transmission members suitable for use in a battery pack, such as a flexible flat wire or a flexible circuit board. In this embodiment, the first mating member 110 is a flexible flat wire. The first mating part 110 includes an insulating housing 111 and a copper conductor (not shown in the figure). The insulating housing 111 is wrapped around the copper conductor. The insulating housing 111 encloses a plurality of copper conductors that are independent of each other. The insulating housing 111 may be made of various materials having an insulating function, and in the present embodiment, the insulating housing 111 is preferably made of polyethylene terephthalate.
The second mating member 120 may also be a signal transmission member that is commonly used in battery packs, depending on the specific application. In the embodiment shown in the figures, the second mating member 120 is an aluminum busbar.
As shown in fig. 4 and 5, the composite connection terminal 130 is used to electrically connect the copper conductor in the first mating part 110 and the second mating part 120 made of aluminum. In the illustrated example, the composite connection terminal 130 has a structure including a first metal terminal 131 and a second metal terminal 141.
The first metal terminal 131 includes a terminal body 132 and a crimp part 133. The terminal body 132 has a flat plate-like structure. A through hole 134 is provided in the middle of the terminal body 132. The terminal main body 132 is connected to a connecting piece 135. The connecting piece 135 has one end connected to the terminal body 132 and the other end extending out of the terminal body 132. Crimp 133 includes a pointed end 136 and a connecting end 137. The connecting end 137 is connected to the connecting piece 135, and the pointed end 136 is freely disposed. The crimping portions 133 are adapted to be held in contact with the copper conductors of the first mating part 110, and the number of the connecting pieces 135 and the crimping portions 133 may be determined according to the actual strength of the connection. In the example shown, the connecting pieces 135 are two in number, and four crimping portions 133 are provided on each connecting piece 135. The four crimps 133 are arranged in two rows and can hold the copper conductor from different directions. Therefore, the crimp portion 133 is preferably a bendable crimp portion 133. In the present embodiment, the first metal terminal 131 is made of copper. The terminal main body 132, the crimping portion 133 and the connecting piece 135 are integrally molded.
The second metal terminal 141 is flat. The upper surface 144 of the second metal terminal 141 is provided with a soldering portion 143. The soldering portion 143 is an area selected for soldering on the surface of the second metal terminal 141, and the soldering portion 143 is used for a soldering operation to be soldered to the second counterpart member 120. The second metal terminal 120 is connected with a bent piece 142. The bent piece 142 is bent to cover the edge of the terminal main body 132, and is connected to the terminal main body 132. In the present embodiment, the second metal terminal 141 is a nickel terminal made of a nickel material.
The second metal terminal 141 is stacked on the terminal body 132. The terminal body 132 is comparable in size to the second metal terminal 141. In the example shown in the figure, the second metal terminal 141 is located below the terminal main body 132, the bent piece 142 is bent to press the end portion against the upper surface of the terminal main body 132, and the bent piece 142 is wrapped around the edge of the terminal main body 132. The bent pieces 142 and the terminal main body 132 may be welded by laser welding, and the first metal terminal 131 and the second metal terminal 141 may be fixedly connected, thereby further enhancing the connection strength. The welding portion 143 is located at the through hole 134. The terminal body 132 covers most of the upper surface 144 except for the soldering portion 143.
The first counterpart 110 is mechanically and electrically connected to the first metal terminal 131. As shown in fig. 5, the pointed end 136 of the crimping portion 133 can pierce the insulating housing 111 to contact the copper conductor therein and hold the copper conductor after bending. The copper conductor is electrically connected to the terminal main body 132 through the crimp portion 133.
The second metal terminal 141 is in contact with the second counterpart member 120, and the soldering part 143 is located at the through hole 134. Through the through-hole 134, the second metal terminal 141 may be solder-connected with the second counterpart member 120 at the soldering portion 143.
The second mating member 120 is electrically connected to the first mating member 110 through the composite connection terminal 130, and may be disposed in the battery pack to serve as a voltage sampling signal transmission circuit of the battery cell. The second mating member 120 is terminated by a connector 150.
In the example shown, a temperature sampling circuit 140 is also provided. The temperature sampling circuit 140 includes a temperature sensor 141 and another second mating component 142. The temperature sensor 141 is electrically connected to the other second mating member 142. The other second mating member 142 is connected to the connector 150. The second mating member 120 is positioned independently of the other second mating member 142. The electrical signals transmitted by the second mating component 120 and the other second mating component 142 can be transmitted to the outside through the connector 150. The first mating member 110 and the second mating member 120 are each mounted on the frame 160.
Example 2
As shown in fig. 6, the present embodiment is different from embodiment 1 in that the upper surface 144 of the second metal terminal 141 is larger in size than the terminal main body 132. The terminal body 132 is not provided with the through-hole 134. The soldering portion 143 is located on the terminal main body 132 side.
In the present invention, as an alternative to the above-described embodiment, the object of the present invention can be achieved by providing the crimping portion 133 directly on the terminal main body 132 without providing the connecting piece 135.
The utility model provides a sampling circuit subassembly and battery package in combined type connecting terminal, electric connection component, the battery package, it is connected with first pair of parts of joining in marriage to set up crimping portion on the adoption first metal terminal. The crimping part can be bent, so that the crimping part can be connected with the first mating part in a holding mode, complex processes such as welding and the like are omitted, and the crimping part is convenient to produce, assemble and use. The crimping part is provided with a sharp end which can be used for piercing an insulating shell of the flexible flat wire so as to be electrically connected with the copper conductor, and the assembly is convenient. The connecting sheet is protruded out of the terminal main body, so that the crimping part can be conveniently connected with the first mating part. Set up the through-hole, can pass through the through-hole with the welding of second metal terminal and second butt joint terminal, convenient operation. The second metal terminal is provided with a bending piece, the bending piece is wrapped at the edge of the terminal main body to connect the terminal main body and the terminal main body after being bent, and the connection stability can be ensured by matching welding. The first metal terminal and the second metal terminal are made of different materials, so that the first metal terminal and the second metal terminal can be respectively connected with conductors made of different materials, such as a copper conductor and an aluminum conductor. The first metal terminal and the first paired components are connected in a holding mode, and connection modes with high temperature such as reflow soldering are omitted, so that the temperature resistance requirement of the insulating shell of the first paired components can be lowered, and the production cost is lowered by using low-cost materials. A plurality of independent flexible flat wires are arranged in the battery pack and can be respectively used for different sampling circuits, mutual influence is avoided, and at least part of the flexible flat wires can adopt a polyethylene glycol terephthalate shell with lower cost.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (14)
1. Combined type connecting terminal, its characterized in that includes:
a first metal terminal including a terminal body and a crimping portion; the crimp part is connected with the terminal body; the crimping part is used for being electrically connected with the first mating part;
a second metal terminal fixedly connected and electrically connected to the terminal body; the second metal terminal is used for being electrically connected with a second mating component;
the first metal terminal and the second metal terminal are independent forming parts respectively and are different in material.
2. The compound type connection terminal according to claim 1, wherein the crimping portion is a bendable crimping portion; the crimping part comprises a sharp-pointed end and a connecting end; the connecting end is connected with the terminal main body, and the spine end is freely arranged; the first metal terminal further comprises a connecting sheet, the connecting sheet is connected with the terminal main body and protrudes out of the terminal main body, and the crimping part is connected with the connecting sheet and connected with the terminal main body through the connecting sheet.
3. The composite connecting terminal according to claim 1, wherein the surface of the second metal terminal is provided with a welding portion, and the first metal terminal is provided to cover the remaining portion of the surface of the welding portion except the welding portion or the whole surface.
4. The composite connecting terminal according to claim 3, wherein the terminal body is provided with a through hole, and the soldering portion is located at the through hole.
5. The composite connecting terminal according to claim 3, wherein the soldering portion is located on a side of the terminal body.
6. The composite connecting terminal according to claim 1, wherein the terminal body is plate-shaped, and the second metal terminal is plate-shaped; the second metal terminal is connected with a bending piece; the terminal main body and the second metal terminal are arranged in a laminated mode; the bent piece is wrapped at the edge of the terminal main body.
7. The composite connecting terminal according to claim 6, wherein the bent pieces are connected to the terminal body by welding.
8. The compound connection terminal according to any one of claims 1 to 7, wherein the first metal terminal is a copper terminal; the second metal terminal is a nickel terminal.
9. An electrical connection assembly, comprising:
the composite connecting terminal of any one of claims 1 to 8;
a first mating member that is press-connected to the first metal terminal.
10. The electrical connection assembly of claim 9, wherein the first mating member is a flexible flat wire or a flexible circuit board; the flexible flat wire or the flexible circuit board is provided with a copper conductor.
11. The electrical connection assembly of claim 9, further comprising a bracket and a second mating member;
the second pair of fittings is fixedly supported on the bracket and is connected with the second metal terminal in a welding mode.
12. The electrical connection assembly of claim 11, wherein the second mating member is an aluminum busbar.
13. The electrical connection assembly of claim 11, further comprising a temperature sensor electrically connected to the first mating member; the first mating part is a flexible flat wire or a flexible circuit board.
14. The electrical connection assembly of claim 9, wherein the electrical connection assembly is a sample circuit assembly within a battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924180.7U CN210744214U (en) | 2019-11-05 | 2019-11-05 | Combined type connecting terminal and electric connection assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921924180.7U CN210744214U (en) | 2019-11-05 | 2019-11-05 | Combined type connecting terminal and electric connection assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210744214U true CN210744214U (en) | 2020-06-12 |
Family
ID=71011372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921924180.7U Active CN210744214U (en) | 2019-11-05 | 2019-11-05 | Combined type connecting terminal and electric connection assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210744214U (en) |
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2019
- 2019-11-05 CN CN201921924180.7U patent/CN210744214U/en active Active
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