CN215732107U - Copper bar connecting piece with novel voltage sampling points and voltage sampling connecting structure - Google Patents
Copper bar connecting piece with novel voltage sampling points and voltage sampling connecting structure Download PDFInfo
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- CN215732107U CN215732107U CN202122182273.0U CN202122182273U CN215732107U CN 215732107 U CN215732107 U CN 215732107U CN 202122182273 U CN202122182273 U CN 202122182273U CN 215732107 U CN215732107 U CN 215732107U
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- voltage sampling
- connecting piece
- sampling point
- bar connecting
- copper bar
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a copper bar connecting piece with a novel voltage sampling point and a voltage sampling connecting structure, wherein the copper bar connecting piece comprises a copper bar connecting piece body, a PCB (printed circuit board), a nickel-plated copper sheet and a first voltage sampling point connector, the voltage sampling connecting structure comprises a voltage sampling flexible circuit board and an aluminum bar connecting piece, the first voltage sampling point connector can be detachably connected with a second voltage sampling point connector on the voltage sampling flexible circuit board, the copper bar connecting piece and the voltage sampling flexible circuit board can be conveniently installed and detached, when a battery needs to be replaced, the voltage sampling flexible circuit board does not need to be replaced together with the first voltage sampling point connector, the cost is reduced, the first voltage sampling point connector can be better welded and contacted through the PCB and the copper sheet, and the nickel-plated copper sheet can be better welded and contacted with the copper bar connecting piece.
Description
Technical Field
The utility model relates to the technical field of battery connecting pieces, in particular to a copper bar connecting piece with a novel voltage sampling point and a voltage sampling connecting structure.
Background
In the industry of new energy batteries, battery voltage sampling points can be installed on battery connectors, and the connection mode of the current battery voltage sampling points can include the following: 1. drilling a hole in a copper bar of the battery connecting piece, connecting the hole with a nut screw, and pressing one end of a sampling wire harness with a connector; 2. a flexible PCB is adopted, a nickel sheet extends out of the side face of the flexible PCB, and the nickel sheet is welded on a copper bar of the battery connecting piece by using a laser welding technology; 3. one end (bare copper) of the sampling wire harness is directly welded on a copper bar of the battery connecting piece by using an ultrasonic welding technology. However, 1 st mode is connected with the nut screw rod, the manual installation is inconvenient, and it is not hard up easily, the contact is not good, 2 nd mode is welded the nickel piece with the laser welding technique, if follow-up will change the battery, the nickel piece can not be dismantled, can only change whole flexible PCB board together, the cost is too high, 3 rd mode is with ultrasonic welding technique copper line lug weld on the copper bar of battery connecting piece, if follow-up will change the battery, also can not dismantle, can only change whole sampling pencil together, the cost is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a copper bar connecting piece with a novel voltage sampling point and a voltage sampling connecting structure.
In order to achieve the above object, a first aspect of the present invention provides a copper bar connector with a novel voltage sampling point, comprising a copper bar connector body for connecting a battery, a PCB, a copper sheet and a first voltage sampling point connector for detachably connecting with a second voltage sampling point connector on a voltage sampling flexible circuit board, the first voltage sampling point connector is welded on the first surface of the PCB, the side surface of the PCB is provided with a plurality of copper welding spots, the welding spot of the PCB is electrically connected with the pin of the first voltage sampling point connector through a circuit arranged on the PCB, the welding spot of the PCB is welded on the first surface of the copper sheet, therefore, the second surface of the PCB is attached and fixed on the copper sheet, the second surface of the copper sheet is plated with nickel to form a nickel-plated surface, and the nickel-plated surface of the copper sheet is welded with the copper bar connecting piece body.
Preferably, the first voltage sampling point connector is provided as a plug type connector or a contact type connector.
Preferably, the thickness of the copper sheet is set to be 0.1mm to 0.4 mm.
Preferably, the first voltage sampling point connector is soldered on the first surface of the PCB by SMT reflow soldering.
Preferably, the welding points of the PCB are welded on the first surface of the copper sheet in an SMT reflow soldering mode.
Preferably, the nickel-plated surface of the copper sheet is welded with the copper bar connecting piece body in a laser welding mode.
Preferably, the copper bar connecting piece body is formed by stacking and welding a plurality of copper foil sheets.
The utility model provides a voltage sampling connection structure, which comprises a voltage sampling flexible circuit board and a copper bar connecting piece, wherein the copper bar connecting piece is provided with the copper bar connecting piece with the novel voltage sampling point, the voltage sampling flexible circuit board is provided with a second voltage sampling point connector, and the first voltage sampling point connector and the second voltage sampling point connector are detachably connected.
Preferably, the second voltage sampling point connector is provided as a plug type connector or a contact type connector.
Compared with the prior art, the utility model has the beneficial effects that:
1. the copper bar connecting piece adopts a novel voltage sampling point structure, the first voltage sampling point connector can be detachably connected with the second voltage sampling point connector on the voltage sampling flexible circuit board, the copper bar connecting piece and the voltage sampling flexible circuit board are convenient to mount and dismount, when a battery needs to be replaced, the copper bar connecting piece and the voltage sampling flexible circuit board do not need to be replaced together, and the cost is reduced.
2. The novel voltage sampling point comprises a PCB, a nickel-plated copper sheet and a first voltage sampling point connector, wherein the first voltage sampling point connector can realize better welding and contact with the PCB and the copper sheet, and the nickel-plated copper sheet can realize better welding and contact with a copper bar connecting piece.
3. The novel voltage sampling point adopts a mode of matching the nickel-plated copper sheet with the copper bar connecting piece, thereby being beneficial to the laser welding operation of the copper sheet and the copper bar connecting piece and solving the problem that the existing copper-clad PCB or connector can not be directly welded on the copper bar connecting piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic partial structure diagram of a copper bar connecting piece with a novel voltage sampling point according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a novel voltage sampling point provided by an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a copper sheet provided in accordance with an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a voltage sampling flexible circuit board and a second voltage sampling point connector according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, an embodiment of the present invention provides a copper bar connecting piece with a novel voltage sampling point, including a copper bar connecting piece body 1 for connecting a battery (such as a battery module) and a novel voltage sampling point welded at one end of the copper bar connecting piece body 1, and each component of this embodiment is described in detail below with reference to the accompanying drawings.
When the copper bar connecting piece is specifically implemented, the copper bar connecting piece body 1 can be formed by stacking and welding a plurality of copper foil pieces, and a square heat dissipation block can be arranged on the copper bar connecting piece body 1.
As shown in fig. 2 and 3, the novel voltage sampling point may include a PCB board 2, a copper sheet 3 and a first voltage sampling point connector 4, the first voltage sampling point connector 4 is welded on a first surface of the PCB board 2, a side surface of the PCB board 2 is provided with a plurality of copper welding spots 21, the welding spots 21 of the PCB board 2 are electrically connected with pins of the first voltage sampling point connector 4 through a circuit arranged on the PCB board 2, the welding spots 21 of the PCB board 2 are welded on a first surface of the copper sheet 3, so that a second surface of the PCB board 2 is attached and fixed on the copper sheet 3, the second surface of the copper sheet 3 is plated with nickel to form a nickel-plated surface 31, and the nickel-plated surface 31 of the copper sheet 3 is welded with the copper bar connector body 1.
Wherein, set up the nickel coating between copper sheet 3 and copper bar connecting piece body 1, be favorable to copper sheet 3 to weld together with copper bar connecting piece body 1 through the laser welding mode.
Preferably, the first voltage sampling point connector 4 may be provided as a plug type connector, a contact type connector, or other various connectors that are easily detachable.
During specific implementation, the thickness of the copper sheet 3 can be preferably set to be 0.1-0.4 mm, the stability of the copper sheet is good at the moment, the problem of thermal expansion stress in reflow soldering can be well solved, damage such as cracking of the copper sheet 3 is prevented, the thermal capacity is not high, and reflow soldering operation is facilitated. In addition, the thickness setting can also reduce the energy requirement of laser welding, and the larger the thickness, the higher the energy requirement.
The copper bar connecting piece with the novel voltage sampling points comprises the following steps:
(1) preparing a nickel-plated copper sheet: electroplating nickel on the second surface of the copper sheet 3 to form a nickel-plated surface 31;
(2) welding the connector and the PCB: welding a first voltage sampling point connector 4 on the first surface of the PCB 2;
in step (2), the first voltage sampling point connector 4 may be soldered on the first surface of the PCB board 2 by SMT reflow soldering.
(3) Welding the PCB and the copper sheet: welding the welding points 21 of the PCB 2 processed in the step (2) on the first surface of the copper sheet 3, so that the second surface of the PCB 2 is attached and fixed on the copper sheet 3, and a novel voltage sampling point is manufactured;
in step (3), the solder points 21 of the PCB board 2 may be soldered on the first surface of the copper sheet 3 by SMT reflow soldering.
(4) Welding a voltage sampling point and a copper bar: and (4) welding the nickel-plated surface 31 of the copper sheet 3 processed in the step (3) with the copper bar connecting piece body 1.
In the step (4), the copper sheet 3 can be welded with the copper bar connecting piece body 1 in a laser welding mode.
During the laser welding, the laser wavelength of the laser welding machine can be set to be 1068 nm-1080 nm preferably, the laser output power can be set to be 1600W-2400W preferably, and the welding speed can be set to be 60 mm/s-120 mm/s preferably. As shown in fig. 1, the welding type of the copper sheet 3 and the copper bar connecting piece body 1 is linear, and the welding joint 7 is linear.
Example two
The second embodiment of the utility model provides a voltage sampling connection structure, which comprises a voltage sampling flexible circuit board and a copper bar connecting piece, wherein the copper bar connecting piece is provided with the novel voltage sampling point copper bar connecting piece in the first embodiment, and the same parts are not repeated.
As shown in fig. 4, a second voltage sampling point connector 6 is arranged on the voltage sampling flexible circuit board 5, and the first voltage sampling point connector 4 and the second voltage sampling point connector 6 are detachably connected.
The second voltage sampling point connector 6 may be a plug-type connector, a contact-type connector, or any other connector that is easily detachable and is compatible with the first voltage sampling point connector 4. When the first voltage sampling point connector 4 is a male terminal, the second voltage sampling point connector 6 is a female terminal, and when the first voltage sampling point connector 4 is a female terminal, the second voltage sampling point connector 6 is a male terminal.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (9)
1. A copper bar connecting piece with novel voltage sampling points comprises a copper bar connecting piece body for connecting a battery, it is characterized by also comprising a PCB board, a copper sheet and a first voltage sampling point connector which is used for realizing detachable connection with a second voltage sampling point connector on the voltage sampling flexible circuit board, the first voltage sampling point connector is welded on the first surface of the PCB, the side surface of the PCB is provided with a plurality of copper welding spots, the welding spot of the PCB is electrically connected with the pin of the first voltage sampling point connector through a circuit arranged on the PCB, the welding spot of the PCB is welded on the first surface of the copper sheet, therefore, the second surface of the PCB is attached and fixed on the copper sheet, the second surface of the copper sheet is plated with nickel to form a nickel-plated surface, and the nickel-plated surface of the copper sheet is welded with the copper bar connecting piece body.
2. The copper bar connecting piece with the novel voltage sampling point is characterized in that the first voltage sampling point connector is a plug-type connector or a contact-type connector.
3. The copper bar connecting piece with the novel voltage sampling point is characterized in that the thickness of the copper sheet is set to be 0.1-0.4 mm.
4. The copper bar connecting piece with the novel voltage sampling points is characterized in that the first voltage sampling point connector is welded on the first surface of the PCB in an SMT (surface mount technology) reflow soldering mode.
5. The copper bar connecting piece with the novel voltage sampling points as claimed in claim 1, wherein the solder joints of the PCB are soldered on the first surface of the copper sheet by SMT reflow soldering.
6. The copper bar connecting piece with the novel voltage sampling point is characterized in that the nickel-plated surface of the copper sheet is welded with the copper bar connecting piece body in a laser welding mode.
7. The copper bar connecting piece with the novel voltage sampling point is characterized in that the copper bar connecting piece body is formed by stacking and welding a plurality of copper foils.
8. The utility model provides a voltage sampling connection structure, includes voltage sampling flexible circuit board and copper bar connecting piece, its characterized in that, the copper bar connecting piece set up as any one of claims 1 to 7 take novel voltage sampling point's copper bar connecting piece, be equipped with second voltage sampling point connector on the voltage sampling flexible circuit board, first voltage sampling point connector realizes detachable the connection with second voltage sampling point connector.
9. The voltage sampling connection structure of claim 8, wherein the second voltage sampling point connector is provided as a plug-type connector or a contact-type connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122182273.0U CN215732107U (en) | 2021-09-10 | 2021-09-10 | Copper bar connecting piece with novel voltage sampling points and voltage sampling connecting structure |
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| CN202122182273.0U CN215732107U (en) | 2021-09-10 | 2021-09-10 | Copper bar connecting piece with novel voltage sampling points and voltage sampling connecting structure |
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| CN215732107U true CN215732107U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871802A (en) * | 2021-09-10 | 2021-12-31 | 东莞市万连实业有限公司 | Copper bar connecting piece with novel voltage sampling points and manufacturing method thereof |
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2021
- 2021-09-10 CN CN202122182273.0U patent/CN215732107U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113871802A (en) * | 2021-09-10 | 2021-12-31 | 东莞市万连实业有限公司 | Copper bar connecting piece with novel voltage sampling points and manufacturing method thereof |
| CN113871802B (en) * | 2021-09-10 | 2024-09-06 | 东莞市万连实业有限公司 | Preparation method of copper bar connecting piece with novel voltage sampling point |
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