CN113829013A - Special-shaped flexible flat wire for new energy automobile battery signal acquisition and manufacturing method thereof - Google Patents
Special-shaped flexible flat wire for new energy automobile battery signal acquisition and manufacturing method thereof Download PDFInfo
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- CN113829013A CN113829013A CN202111152423.1A CN202111152423A CN113829013A CN 113829013 A CN113829013 A CN 113829013A CN 202111152423 A CN202111152423 A CN 202111152423A CN 113829013 A CN113829013 A CN 113829013A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 36
- 238000003466 welding Methods 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims description 54
- 238000005452 bending Methods 0.000 claims description 38
- 230000001012 protector Effects 0.000 claims description 24
- 239000004020 conductor Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 206010066054 Dysmorphism Diseases 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000001154 acute effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 12
- MVXIJRBBCDLNLX-UHFFFAOYSA-N 1,3-dichloro-2-(2-chlorophenyl)benzene Chemical compound ClC1=CC=CC=C1C1=C(Cl)C=CC=C1Cl MVXIJRBBCDLNLX-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
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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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- Chemical Kinetics & Catalysis (AREA)
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- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to the technical field of connecting wires, in particular to a special-shaped flexible flat wire for collecting new energy automobile battery signals and a manufacturing method thereof.A round or eccentric conducting wire is adopted, the conducting wire is bent to form a branch wire part, and then the branch wire part is connected with a nickel sheet, so that the connection between an external battery pack and a main circuit board is realized, and the condition of folding or additionally welding or pasting other branch wires is not needed; the included angle between the main line part and the branch line part of the lead can be an acute angle, a right angle or an obtuse angle, so that the connection requirements of different battery pack positions can be met, and the practicability is higher; after the wire is bent, another insulating layer can be covered, and redundant insulating layers between adjacent branch line parts are cut off, namely the invention only needs to cut the insulating layers once, so that the process flow is simpler and more convenient; and the insulating layer covering the branch line parts and the main line parts is designed integrally, so that the connection between the branch line parts and the main line parts can be firmer.
Description
Technical Field
The invention relates to the technical field of connecting wires, in particular to a special-shaped flexible flat wire for collecting new energy automobile battery signals and a manufacturing method thereof.
Background
New energy automobile's battery generally is provided with a plurality of groups of batteries, and in order to detect the behavior of every group of batteries, often need set up corresponding detection device, and the corresponding connecting device of rethread is connected every group of batteries and detection device to whether the operation that detects the group of batteries constantly is normal, thereby is convenient for in time handle the group of batteries, guarantees the normal operating of car.
Connecting device among the prior art, there is the FPC flexible circuit board that adopts to accomplish detection device and being connected of group battery, FPC flexible circuit board includes extension board and branch line, the branch line is connected with the group battery through a nickel piece respectively, every branch line all is provided with corresponding detecting element, for example, a temperature sensor, overload detecting element, overflow detecting element etc. thereby can carry out operating parameter's detection to every group battery, and FPC flexible circuit board, in fact also be one kind of circuit board, it also needs design interconnecting link, and is with high costs, and when certain circuit on wherein certain detecting element damages or the board damages, then whole FPC just needs to be changed, cause the circumstances such as inconvenient use.
In order to improve the above situation in the prior art, a structure that the FPC is replaced by a flat wire such as an FFC is adopted, and the adopted structure needs to cut and separate each conducting wire in the FFC, fold the conducting wire, and fix the folded conducting wire through structures such as other fixing glue parts, or else, the folding line is easy to loosen, shake and the like, and the folding line is easy to break due to shaking in the actual use process; in addition to the above-mentioned folding type, there are also cases where a flat wire having another branch is soldered and attached to the flat wire, the process flow is complicated, the separately attached branch flat wire may fall off, and the insulating layer may be cut and attached several times, resulting in a low production efficiency.
Disclosure of Invention
The invention provides a special-shaped flexible flat wire for collecting new energy automobile battery signals and a manufacturing method thereof, aiming at the problems in the prior art, a round or eccentric conducting wire is adopted, the conducting wire is directly bent to form a branch wire part, and then the redundant insulating layer is cut off, so that the conducting wire does not need to be folded, the insulating layer of the branch wire part and the insulating layer of a main wire part do not need to be cut or pasted for many times, and the insulating layer of the branch wire part and the insulating layer of the main wire part are integrally arranged, so that the situation of falling or shaking is not easy to occur.
In order to solve the technical problems, the invention adopts the following technical scheme: the special-shaped flexible flat wire for collecting the new energy automobile battery signals comprises a main circuit board, a connecting wire, a detection module and a plurality of nickel sheets, wherein the connecting wire comprises a conductor layer and insulating layers covering the two sides of the conductor layer, the conductor layer comprises a plurality of conducting wires arranged at intervals, and the shape of the radial section of each conducting wire is circular or eccentric; the lead comprises a main line part, a bending part and a branch line part which are connected in sequence, the bending part is in the shape of an arc, and the joint of the main line part and the bending part and the joint of the branch line part and the bending part are integrally connected; the arc lengths of the bent parts of the different leads are the same or different, and the radians of the bent parts of the different leads are the same or different; one end of the branch part, which is far away from the bent part, is welded on the nickel sheet; one end of the main line part, which is far away from the bending part, is electrically connected with the main circuit board; the detection module is in signal connection with the nickel sheet and the main circuit board and is used for detecting whether an external device connected with the nickel sheet works normally or not.
Preferably, a plurality of the bending portions and the plurality of the branch portions are arranged, and the adjacent branch portions are connected through the bending portions.
Preferably, the wire layer further comprises two detection lines, each detection line comprises a main detection line, a bending detection portion and a branch detection line which are sequentially connected, the bending detection portion is arc-shaped, and the connection position of the main detection line and the bending detection portion and the connection position of the branch detection line and the bending detection portion are integrally connected; one end of the main detection line, which is far away from the bending detection part, is welded with the main circuit board; and one ends of the two branch detection lines, which are far away from the bending detection part, are welded on the detection module.
Preferably, the special-shaped flat wire for acquiring the new energy automobile battery signal further comprises a protection module, and the protection module is used for disconnecting the connection between the nickel sheet and the main circuit board when the connection wire is abnormal.
Preferably, the protection module includes a plurality of fuse protector members, the fuse protector members are all welded to the main circuit board, and each of the conductive wires is electrically connected to the fuse protector members.
Preferably, the protection module is provided with a plurality of, the protection module includes a fuse protector, a protection circuit board, and a first pad and a second pad that are respectively arranged at two ends of the protection circuit board, the branch line portion is welded to the first pad, two ends of the fuse protector are respectively electrically connected with the first pad and the second pad, and the second pad is welded with the nickel sheet.
Preferably, the first pad has a rectangular shape.
Preferably, the first pad has a cross shape.
Preferably, the main circuit board comprises a PCB and an FPC, and both ends of the FPC are respectively soldered to the PCB and the connection lines.
A manufacturing method of a special-shaped flexible flat wire for collecting new energy automobile battery signals comprises the following steps:
A. respectively sticking a plurality of leads to the same insulating layer, wherein the radial sections of the leads are circular or eccentric;
B. bending one end of the lead to form a main line part and a branch line part, wherein the main line part and the branch line part are both positioned on the insulating layer;
C. covering a second insulating layer on the leads to cover the leads by two insulating layers;
D. cutting the two insulating layers between the adjacent branch line parts;
E. and welding a plurality of main wire parts to the main circuit board, respectively welding a plurality of nickel sheets to a plurality of branch wire parts, and welding the detection piece to the branch wire parts.
The invention has the beneficial effects that:
1. the round or eccentric lead is adopted, the lead is directly bent to form a branch part, and then the branch part is connected with the nickel sheet, so that the connection between the external battery pack and the main circuit board is realized without folding or additionally welding or pasting other branch lines;
2. the bending angle of the lead can be set according to the actual situation, and the included angle between the main line part and the branch line part can be an acute angle, a right angle or an obtuse angle, so that the connection requirements of different battery pack positions can be met, and the practicability is higher;
3. after the wire is bent, another insulating layer can be covered, and redundant insulating layers between adjacent branch line parts are cut off, namely the invention only needs to cut the insulating layers once, so that the process flow is simpler and more convenient; and the insulating layer covering the branch line parts and the main line parts is designed integrally, so that the connection between the branch line parts and the main line parts can be firmer.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment and a sixth embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is a first cross-sectional view of a connecting wire of the present invention;
FIG. 4 is a cross-sectional view of a second connector of the present invention;
FIG. 5 is a third cross-sectional view of a connecting wire of the present invention;
FIG. 6 is a schematic view of a wire bend according to an embodiment of the present invention;
FIG. 7 is a schematic view of an embodiment of the invention in which an unbent conductive line is fixed on an insulating layer;
FIG. 8 is a first schematic view of the bent conductive wire of FIG. 7;
FIG. 9 is a schematic view of the structure of FIG. 8 after covering a second insulating layer;
FIG. 10 is a schematic diagram of the structure of FIG. 9 after the insulating layer is cut;
FIG. 11 is a second schematic view of the bent and cut conductor of FIG. 7;
FIG. 12 is a first schematic structural diagram according to a second embodiment of the present invention;
FIG. 13 is a second schematic structural diagram according to a second embodiment of the present invention;
FIG. 14 is a first schematic structural diagram according to a third embodiment of the present invention;
FIG. 15 is a second schematic structural diagram according to a third embodiment of the present invention;
FIG. 16 is a first schematic structural diagram according to a fourth embodiment of the present invention;
FIG. 17 is a second schematic structural diagram according to a fourth embodiment of the present invention;
FIG. 18 is a schematic diagram of a prior art structure;
FIG. 19 is a first schematic structural diagram according to a fifth embodiment of the present invention;
fig. 20 is a second schematic structural diagram according to a fifth embodiment of the present invention.
The reference numerals in fig. 1 to 20 include:
1-main circuit board, 2-detection module, 3-nickel sheet, 4-insulating layer, 5-lead, 6-main line part, 7-bending part, 8-branch line part, 9-detection line, 10-main detection line, 11-bending detection part, 12-detection line, 13-protection module, 15-fusing protection part, 16-protection circuit board, 17-first pad, 18-second pad, 19-PCB board, 20-FPC board and 21-connecting line.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention is described in detail below with reference to the attached drawings.
The first embodiment is as follows:
the special-shaped flexible flat wire for acquiring the new energy automobile battery signal provided by the embodiment comprises a main circuit board 1, a connecting wire 21, a detection module 2 and a plurality of nickel sheets 3, wherein the connecting wire 21 comprises a conductor layer and insulating layers 4 covering and arranged on two sides of the conductor layer, the conductor layer comprises a plurality of leads 5 arranged at intervals, and the shape of the radial section of each lead 5 is circular or eccentric; the lead 5 comprises a main line part 6, a bent part 7 and a branch line part 8 which are connected in sequence, the bent part 7 is arc-shaped, and the joint of the main line part 6 and the bent part 7 and the joint of the branch line part 8 and the bent part 7 are integrally connected; the arc lengths of the bent parts 7 of the different wires 5 are the same or different, and the radians of the bent parts 7 of the different wires 5 are the same or different; one end of the branch part 8, which is far away from the bent part 7, is welded to the nickel sheet 3; one end of the main line part 6, which is far away from the bending part 7, is electrically connected with the main circuit board 1; the detection module 2 is in signal connection with the nickel sheet 3 and the main circuit board 1 and is used for detecting whether an external device connected with the nickel sheet 3 works normally or not. The main circuit board 1 may be a PCB or an FPC, among others.
Specifically, as shown in fig. 1, which is a schematic structural diagram of the present embodiment, the lead 5 of the present embodiment is a circular lead 5 or an eccentric-circular lead 5, as shown in fig. 3 to 5, the eccentric shape may be a transverse ellipse as shown in fig. 5, or a vertical ellipse as shown in fig. 4, such a lead 5 can be directly bent, and if the lead 5 is a lead 5 of other shape, it is difficult to directly bend. The curved portion 7 of the conductive wire 5 in this embodiment is formed after the conductive wire 5 is curved, and the general shape is an arc, and the radii of the curved portions 7 of different arcs may be the same or different, depending on the actual thickness of the conductive wire 5, which is not limited in this embodiment. In the present embodiment, the branch line portion 8 is formed by bending the lead wires 5, the included angle between the branch line portion 8 and the main line portion 6 may be a right angle, as shown in fig. 1, or an acute angle or an obtuse angle, as shown in fig. 11, that is, the branch line portion 8 of the present embodiment may be determined according to the actual position of the automobile battery pack, after all the lead wires 5 are bent, another insulating layer 4 is covered on the surface thereof, as shown in fig. 9, the cutting is performed at the position of the dotted line, so as to cut off the extra insulating layer 4, so that the branch line portion 8 is independent and can be flexibly connected to the corresponding automobile battery pack, that is, in the present embodiment, the insulating layer 4 covered on the branch line portion 8 is designed integrally with the insulating layer 4 of the main line portion 6, rather than being additionally attached, and without being subjected to the processes of cutting, folding, and re-fixing, therefore, the insulating layer 4 of the embodiment is more simple and convenient in production design combined with the lead 5, is not easy to shake and break, and has higher practicability and durability, and the connecting wire 21 of the embodiment is preferably a flexible flat wire, so that the cost is lower, and the circuit is not required to be designed, and the production efficiency can be more effectively improved.
The main circuit board of the embodiment has a plurality of different expression forms, such as a PCB or an FPC, and the main line part of the wire can be directly soldered on the PCB or the FPC; as another embodiment, the main circuit board of this embodiment may also be a connector, and the main line portions of all the wires are riveted to the connector, and then the connector is connected to an external mating connector.
Further, the detecting module 2 of the present embodiment may include detecting devices required by the automobile battery pack, such as a temperature sensor, an overload detecting element, and an overcurrent detecting element, the connection mode is similar to that of the nickel sheet 3, two detection wires 9 are arranged on the conductor layer of the connection wire 21, the design of the detection wires 9 is the same as that of the lead 5, a round or eccentric conductor is also adopted, and the conductor is bent to form a branch detection wire 12, the specific structure is shown in figure 1, taking a temperature sensor as an example, two ends of the temperature sensor are respectively connected to the main circuit board 1 through two branch detection lines 12, and further, the detected operating temperature of the automobile battery pack can be transmitted to the main circuit board 1 for monitoring, and the main circuit board 1 is generally connected with an external monitoring device through a connector, which is not described in detail in the prior art, therefore, the external monitoring device can detect the working temperature of the automobile battery pack in real time so as to take abnormal countermeasures in time.
According to the special-shaped flexible flat wire for acquiring the new energy automobile battery signal, as shown in fig. 1, the special-shaped flat wire for acquiring the new energy automobile battery signal further comprises a protection module 13, and the protection module 13 is used for disconnecting the connection between the nickel sheet 3 and the main circuit board 1 when the connection line 21 is abnormal. The protection module 13 includes a plurality of fuse protectors 15, the fuse protectors 15 are all welded to the main circuit board 1, and each of the wires 21 is electrically connected to the fuse protector 15. The fuse protector 15 of the present embodiment may be a fuse resistor or a fuse, and may be set according to practical situations, which is not limited in the present embodiment.
Specifically, the fuse 15 in the prior art is arranged in a manner of being fixed in the FPC flexible printed circuit, that is, the fuse 15 is not detachable, and if the fuse is damaged, the FPC flexible printed circuit is damaged, and therefore the whole fuse needs to be replaced, and the use is inconvenient. As shown in fig. 1, an embodiment of a protection module 13 of this embodiment is provided, in this embodiment, a plurality of pads for welding the fuse protector 15 are provided on the main circuit board 1, the fuse protector 15 is welded on the main circuit board 1, and each fuse protector 15 is electrically connected to a conducting wire 5, so that the fuse protector 15 can be prevented from disconnecting the automobile battery pack from the main circuit board 1 when the power supply of the automobile battery pack is abnormal. The present embodiment provides the fuse protector 15 independently on the main circuit board 1 so that it can be directly replaced when the fuse protector 15 is damaged, without affecting the use of the connection wires 21.
In this embodiment, the flat connecting wire 21 is mainly used to replace the FPC flexible printed circuit board in the prior art, and the circular conductive wire 5 is bent, so that the connecting wire 21 of this embodiment is more durable and more practical, and the production method is simpler than that in the prior art, thereby improving the production efficiency of this embodiment.
Further, all welding points of this embodiment are all wrapped up the cover through UV glue, prevent that the welding point from being damaged or the condition of short circuit appears. In addition, the insulating layer 4 of the present embodiment may be made of a high temperature resistant film or the like in the prior art, or may be made of a conventional material, which is not limited in the present embodiment.
Example two:
different from the first embodiment, as shown in fig. 12 and 13, the branch line portion 8 of the present embodiment may be provided in multiple numbers, and the corresponding bent portion 7 is also provided in multiple numbers. Specifically, when the wire 5 is bent only once and cannot meet the actual connection method with the automobile battery pack, the wire 5 may be bent multiple times to form the shape shown in fig. 12, and of course, the included angle between the branch line part 8 and the branch line part 8 after bending may be one or more of an acute angle, a right angle, or an obtuse angle. After the wire 5 is bent, the second insulating layer 4 is also pasted and cut, and the excess insulating layer 4 is cut off and then the corresponding welding operation is performed. This embodiment is through bending wire 5 for the setting of the car group of different grade type more is applicable to the connecting wire 21 of this embodiment, if there is corresponding barrier when the setting of some car group, hinders the design of connecting wire 21, so this embodiment then can set up corresponding special-shaped shape with the branch portion 8 according to the structure of car group, thereby accords with the demand of different cars.
Example three:
the special-shaped flexible flat wire for acquiring the new energy automobile battery signal provided by the embodiment is different from the first embodiment in the arrangement of the protection module 13, the protection module 13 of the embodiment is an independent functional module, as shown in fig. 14 and 15, the protection module 13 is arranged between each nickel sheet 3 and the branch line part 8, the protection module 13 comprises a fusing protection part 15, a protection circuit board 16, and a first pad 17 and a second pad 18 which are respectively arranged at two ends of the protection circuit board 16, the branch line part 8 is welded to the first pad 17, two ends of the fusing protection part 15 are respectively electrically connected with the first pad 17 and the second pad 18, and the second pad 18 is welded to the nickel sheet 3. The fuse protector 15 of the present embodiment may be a fuse resistor or a fuse, and may be set according to practical situations, which is not limited in the present embodiment. The protection circuit board 16 may be a PCB board or an FPC board.
Specifically, in this embodiment, the fuse protector 15 is independently configured as a protection module 13, and is welded with the nickel sheet 3 and the lead 5 by using a welding method, so that firstly, the protection function of the fuse protector 15 can be achieved, and secondly, if one of the fuse protectors 15 is damaged, the protection module 13 where the fuse protector 15 is located can be detached and replaced, so that the protection module 13 can continue to perform the protection function, and the use of the connection line 21 of this embodiment is not affected.
As an embodiment of the present embodiment, the first pad 17 of the present embodiment may be designed in a rectangular shape as shown in fig. 14, so that the branch portions 8 bent at different angles can be welded to the first pad 17.
As another embodiment of this embodiment, the first pad 17 of this embodiment may be provided in a cross shape as shown in fig. 15, and since the branch portion 8 is bent in many shapes as in fig. 10 and 12 and the wire 5 is a round thin wire in actual design, providing the first pad 17 in a cross shape can bring good contact with and bond to the first pad 17 in a cross shape regardless of the vertical branch portion 8 in fig. 10 or the horizontal branch portion 8 in fig. 12, which helps reduce the occurrence of false or cold solder joints.
Example four:
in the fourth embodiment, as shown in fig. 16 and 17, the first embodiment and the third embodiment are combined, the fuse protector 15 is arranged on the main circuit board 1, the fuse protector is not arranged on the protection circuit board 16, and the first bonding pad 17 and the second bonding pad 18 are directly connected together. Wherein the structure of the first pads 17 also includes a square shape and a cross shape.
Example five:
as shown in fig. 19 and 20, the main circuit board 1 of the embodiment may be configured as a PCB 19 or an FPC 20. Specifically, in the prior art, as shown in fig. 18, a complete structural design of the FPC is adopted, the FPC flexible circuit board needs to design 21 lines of connecting wires, which is high in cost, and when a certain detection element is damaged or a certain line on the board is damaged, the whole FPC needs to be replaced, and when the structure with an obstacle in fig. 18 is encountered, the structure of the FPC needs to be correspondingly designed, so that the structure meets different use environments, that is, when the FPC is applied to different automobile battery environments, the corresponding FPC needs to be matched, so that each FPC can only adapt to one use environment, and the practicability is low.
In this embodiment, the structure of the pure FPC in the prior art is set as the structure of the FPC and the flat connecting wire 21, as shown in fig. 19, the structure of the connecting wire 21 may be any structure of the first to third embodiments; as another embodiment of this embodiment, this embodiment may also be provided as a mechanism in which a PCB board is combined with flat connection wires 21 as shown in fig. 20. The terminals of the FPC board 20 or the PCB 19 in the two embodiments may be soldered connectors, and then connected to an external structure through connectors, or terminals of the FPC board or the PCB may be riveted with connectors, and then connected to the external structure through the riveted connectors. That is, the structure of the connection line 21 at the rear end is changed according to the structure of the car battery pack in practical use, and the structure of the connection line 21 of the embodiment is simpler than the prior art in production manner, so that even if the structure is modified in a bending manner according to different application environments, the structure is faster and simpler than the structure completely adopting the FPC, and the production cost is lower than the FPC, so that the structure has higher practicability.
Example six:
the flexible flat line of dysmorphism that new energy automobile battery signal gathered that this embodiment provided, as shown in fig. 1, nickel piece 3 of this embodiment includes multiple shape, the preferred as shown in fig. 1 of shape of nickel piece 3 of this embodiment, it includes 3 bodies of nickel piece and two pins, two pins are all wrapped up by two-layer insulating layer 4, branch portion 8 and the 3 welding of nickel piece of wire 5 are in the same place simultaneously, thereby can prevent that nickel piece 3 from dropping, make the connecting wire 21's of this embodiment structure more firm, the condition that the part is not hard up or drops also is difficult to appear in long-time use.
Example seven:
the embodiment provides a manufacturing method of a special-shaped flexible flat wire for acquiring new energy automobile battery signals, which comprises the following steps:
A. a plurality of leads 5 are respectively stuck on the same insulating layer 4, and the radial cross sections of the plurality of leads 5 are circular or eccentric, as shown in fig. 7;
B. bending one end of the lead 5 to form a main line part 6 and branch line parts 8, wherein the main line part 6 and the branch line parts 8 are both positioned on the insulating layer 4 as shown in fig. 8; the bending work of the wire 5 can be performed by a corresponding machine;
C. covering the wires 5 with a second insulating layer 4, so that the wires 5 are covered by the two insulating layers 4;
D. cutting the two insulating layers 4 between the adjacent branch line parts 8; for example, in fig. 9, the insulating layer 4 is cut at a position along the dotted line, so that the structure of fig. 10 is formed after cutting;
E. welding a plurality of main wire parts 6 to the main circuit board 1, respectively welding a plurality of nickel sheets 3 to a plurality of branch wire parts 8, and welding a detection part to the branch wire parts 8, wherein the welding sequence is not limited in this embodiment, and the welding work of the main circuit board 1 can be performed, or the welding work of the nickel sheets 3 can be performed first.
Specifically, according to the manufacturing method, the connecting wire 21 of the embodiment only needs to cut the insulating layer 4 once, and does not need to be folded or pasted by other insulating layers 4 or tapes, so that the process flow is simpler and more convenient; and the insulating layer 4 covering the branch line portions 8 and the main line portions 6 is integrally designed, so that the connection between the branch line portions 8 and the main line portions 6 can be more stable.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a flexible flat line of dysmorphism that new energy automobile battery signal gathered which characterized in that: the detection device comprises a main circuit board, a connecting wire, a detection module and a plurality of nickel sheets, wherein the connecting wire comprises a conductor layer and insulating layers covering two sides of the conductor layer, the conductor layer comprises a plurality of conducting wires arranged at intervals, and the shape of the radial section of each conducting wire along the radial direction is circular or eccentric;
the lead comprises a main line part, a bending part and a branch line part which are connected in sequence, the bending part is in the shape of an arc, and the joint of the main line part and the bending part and the joint of the branch line part and the bending part are integrally connected;
the arc lengths of the bent parts of the different leads are the same or different, and the radians of the bent parts of the different leads are the same or different;
one end of the branch part, which is far away from the bent part, is welded on the nickel sheet; one end of the main line part, which is far away from the bending part, is electrically connected with the main circuit board;
the detection module is in signal connection with the nickel sheet and the main circuit board and is used for detecting whether an external device connected with the nickel sheet works normally or not.
2. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 1, characterized in that: the bending parts and the branch parts are respectively provided with a plurality of parts, and the adjacent branch parts are connected through the bending parts.
3. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 1, characterized in that: the lead layer further comprises two detection lines, each detection line comprises a main detection line, a bending detection part and a branch detection line which are sequentially connected, the bending detection part is arc-shaped, and the connection part of the main detection line and the bending detection part and the connection part of the branch detection line and the bending detection part are integrally connected;
one end of the main detection line, which is far away from the bending detection part, is welded with the main circuit board;
and one ends of the two branch detection lines, which are far away from the bending detection part, are welded on the detection module.
4. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 1, characterized in that: the special-shaped flat wire for acquiring the new energy automobile battery signals further comprises a protection module, and the protection module is used for disconnecting the nickel sheets from the main circuit board when the connecting wire is abnormal.
5. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 4, characterized in that: the protection module comprises a plurality of fusing protection pieces, the fusing protection pieces are welded on the main circuit board, and each conducting wire is electrically connected with the fusing protection pieces.
6. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 4, characterized in that: the protection module is provided with a plurality of, the protection module includes fusing protection piece, protection circuit board and sets up respectively in the first pad and the second pad at protection circuit board both ends, branch line portion weld in first pad, fusing protection piece's both ends respectively with first pad and second pad electricity are connected, the second pad with the nickel piece welding.
7. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 6, characterized in that: the first bonding pad is rectangular or crossed.
8. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 4, characterized in that: the protection module is provided with a plurality of protection modules, each protection module comprises a fusing protection piece, a protection circuit board, a first bonding pad and a second bonding pad, the first bonding pad and the second bonding pad are respectively arranged at two ends of the protection circuit board, the first bonding pad is electrically connected with the second bonding pad, the branch line part is welded on the first bonding pad, and the second bonding pad is welded with the nickel sheet;
the fuse protector is welded to the main circuit board, and the fuse protector is electrically connected to the nickel tab through the lead wire.
9. The special-shaped flexible flat wire for acquiring the new energy automobile battery signal as claimed in claim 1, characterized in that: the main circuit board is a PCB or FPC board, and the FPC board or the PCB board is welded or riveted with the connecting wire.
10. A manufacturing method of a special-shaped flexible flat wire for collecting new energy automobile battery signals is characterized by comprising the following steps:
A. respectively sticking a plurality of leads to the same insulating layer, wherein the radial sections of the leads are circular or eccentric;
B. bending one end of the lead to form a main line part and a branch line part, wherein the main line part and the branch line part are both positioned on the insulating layer;
C. covering a second insulating layer on the leads to cover the leads by two insulating layers;
D. cutting the two insulating layers between the adjacent branch line parts;
E. and welding a plurality of main wire parts to the main circuit board, respectively welding a plurality of nickel sheets to a plurality of branch wire parts, and welding the detection piece to the branch wire parts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111152423.1A CN113829013A (en) | 2021-09-29 | 2021-09-29 | Special-shaped flexible flat wire for new energy automobile battery signal acquisition and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111152423.1A CN113829013A (en) | 2021-09-29 | 2021-09-29 | Special-shaped flexible flat wire for new energy automobile battery signal acquisition and manufacturing method thereof |
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| CN113829013A true CN113829013A (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111152423.1A Pending CN113829013A (en) | 2021-09-29 | 2021-09-29 | Special-shaped flexible flat wire for new energy automobile battery signal acquisition and manufacturing method thereof |
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| CN (1) | CN113829013A (en) |
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Application publication date: 20211224 |