CN110635256A - Ultrasonic welding electrical connector - Google Patents
Ultrasonic welding electrical connector Download PDFInfo
- Publication number
- CN110635256A CN110635256A CN201910787411.2A CN201910787411A CN110635256A CN 110635256 A CN110635256 A CN 110635256A CN 201910787411 A CN201910787411 A CN 201910787411A CN 110635256 A CN110635256 A CN 110635256A
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- China
- Prior art keywords
- welding
- metal
- ultrasonic welding
- electrical connector
- ultrasonic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/023—Soldered or welded connections between cables or wires and terminals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/029—Welded connections
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses an ultrasonic welding electric connecting piece, which comprises a metal connecting part and a cable, wherein the cable is provided with a plurality of independent metal wires, the metal connecting part is provided with a welding surface for welding the wires, and the method comprises the following steps: carrying out centralized limiting on the plurality of metal conductors, and positioning the metal conductors with the centralized limiting on the welding surface; the concentrated limiting metal lead and the welding surface are welded together in an ultrasonic welding mode. So, can effectively avoid in the ultrasonic bonding process take place uncontrolled condition such as alternate segregation between the great wire of quantity, can with all metal conductors completely with the faying face hot melt combines, prevents to reduce the loss because of the appearance uncontrolled irregular shape electric connector's power transmission security.
Description
Technical Field
The present invention relates to an ultrasonic welding electrical connector, and more particularly, to an ultrasonic welding electrical connector for transmitting power.
Background
The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile, other new energy automobiles and the like.
A pure Electric vehicle (BEV) is an automobile using a single storage battery as an energy storage power source, and the storage battery is used as the energy storage power source, and the battery supplies Electric energy to a motor to drive the motor to run, so as to drive the automobile to run.
A Hybrid Electric Vehicle (HEV) refers to a Vehicle in which a drive system is combined by two or more single drive trains capable of operating simultaneously, and the running power of the Vehicle is provided by the single drive train or by multiple drive trains together according to the actual running state of the Vehicle. Hybrid vehicles come in a variety of forms due to differences in various component parts, arrangements, and control strategies.
Fuel Cell Electric Vehicles (FCEV) are vehicles driven by using hydrogen gas and oxygen in the air under the action of a catalyst, and Electric energy generated by an electrochemical reaction in a Fuel Cell is used as a main power source. The fuel cell electric vehicle is essentially one of pure electric vehicles, and the main difference lies in the different working principles of the power battery. Generally, a fuel cell converts chemical energy into electrical energy through an electrochemical reaction, a reducing agent required by the electrochemical reaction generally adopts hydrogen, and an oxidizing agent adopts oxygen, so most of the originally developed fuel cell electric vehicles directly adopt hydrogen fuel, and the hydrogen can be stored in the forms of liquefied hydrogen, compressed hydrogen or metal hydride hydrogen storage.
The hydrogen engine automobile is an automobile using a hydrogen engine as a power source. Typically the fuel used in the engine is diesel or gasoline and the fuel used in the hydrogen engine is gaseous hydrogen. The hydrogen engine automobile is a vehicle which really realizes zero emission, discharges pure water, and has the advantages of no pollution, zero emission, rich reserve and the like.
Other new energy vehicles include vehicles that use high efficiency energy storage devices such as supercapacitors, flywheels, and the like. At present, in China, new energy automobiles mainly refer to pure electric automobiles, extended range electric automobiles, plug-in hybrid electric automobiles and fuel cell electric automobiles, and conventional hybrid electric automobiles are classified as energy-saving automobiles.
However, in the prior art, new energy vehicles almost all face the charging safety problem, that is, because the charging device includes cables for transmitting large current, the cables are generally combined together by using a plurality of metal wires, and after the wires are welded to the metal connector component, a large amount of heat is easily accumulated in the welding part due to the problem of the welding technology, so that a huge potential safety hazard is caused, the current transmission amount is also severely limited, and the development trend of new energy vehicles is influenced.
Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.
Disclosure of Invention
The invention aims to provide an ultrasonic welding electric connecting piece with improved installation performance.
The purpose of the invention is realized by the following technical scheme: an ultrasonic welding electrical connector, the electrical connector comprising a metal connection component and a cable, the cable provided with a plurality of individual metal wires, the metal connection component provided with a welding face for welding the plurality of wires, the method comprising:
the method comprises the following steps: carrying out centralized limiting on the plurality of metal conductors, and positioning the metal conductors with the centralized limiting on the welding surface;
step two: the concentrated limiting metal lead and the welding surface are welded together in an ultrasonic welding mode.
As a further improvement of the invention, the metal connecting part is provided with a welding part, the welding surface is arranged on the welding part, and the welding part is also provided with a non-planar opposite surface.
As a further improvement of the invention, the main body of the opposite surface is in a plate shape or an arc shape, a plurality of concave parts are arranged on the opposite surface, and the concave parts are in a point shape or a linear shape
As a further improvement of the present invention, in the step one, the metal wires are gathered together by using a limiting clamp, and a contact surface for contacting with the limiting clamp is arranged on the welded metal wires, wherein the contact surface is non-planar.
As a further improvement of the invention, the connecting piece is provided with two welding parts, and the plurality of metal conducting wires are limited between the two welding parts in a concentrated manner and are welded together by ultrasonic welding.
In a further improvement of the present invention, the welding portion is annular, and the annular welding portion covers the outer sides of the plurality of metal wires and is welded together by ultrasonic welding.
As a further improvement of the invention, the annular welding part is provided with a longitudinal split opening.
As a further improvement of the present invention, the welding portion is a cylindrical shape, and the plurality of metal wires are gathered and limited around the cylindrical welding portion and welded together by ultrasonic welding.
As a further improvement of the present invention, the welded metal wire is externally wrapped with an insulating portion.
As a further improvement of the invention, the electric connector is a high-current power transmission connector.
Compared with the prior art, the ultrasonic welding electric connector disclosed by the invention has the advantages that the metal wires are subjected to centralized limiting firstly, the uncontrolled conditions such as mutual separation and the like in the ultrasonic welding process of the large number of wires can be effectively avoided, all the metal wires can be completely combined with the welding surface in a hot melting manner, and the power transmission safety of the electric connector is prevented from being reduced due to the occurrence of uncontrolled irregular shapes.
Drawings
FIG. 1 is a perspective view of a first embodiment of an ultrasonically welded electrical connector of the present invention.
Fig. 2 is a perspective view of another angle in fig. 1.
FIG. 3 is a perspective view of a second embodiment of an ultrasonically welded electrical connector of the present invention.
Fig. 4 is a perspective view of another angle in fig. 3.
FIG. 5 is a perspective view of a third embodiment of an ultrasonically welded electrical connector of the present invention.
Fig. 6 is a perspective view of another angle in fig. 5.
Fig. 7 is a perspective view of the connection member of fig. 5.
FIG. 8 is a perspective view of a fourth embodiment of an ultrasonically welded electrical connector of the present invention.
Fig. 9 is a perspective view of the connecting member of fig. 8.
Reference numerals:
electrical connector 100 metal connecting component 1
Weld parts 11, 11 ', 11'
Welding surface 111
Contact surface 22 of the conductors 21, 21', and the like
Concave rib 23
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 to 9 are schematic structural views of different embodiments of an ultrasonic welding electrical connector 100 according to the present invention. The electric connector 100 comprises a metal connecting component 1 and a cable 2, wherein the cable 2 is provided with a plurality of independent metal wires 21, the metal connecting component 1 is provided with a welding surface 111 for welding the plurality of wires 21, and the method comprises the following steps:
the method comprises the following steps: carrying out centralized limiting on the plurality of metal conductors 21, and positioning the metal conductors 21 on the welding surface 111;
step two: the metal conducting wire 21 with the concentrated limit is welded with the welding surface 111 in an ultrasonic welding mode. Due to the arrangement, the cable 2 comprises the plurality of metal wires 21, particularly when the number of the metal wires 21 is large, the metal wires 21 cannot be welded in a one-to-one corresponding welding mode, in the invention, the metal wires 21 are limited in a centralized mode, the uncontrolled conditions such as mutual separation and the like of the wires 21 with large number in the ultrasonic welding process can be effectively avoided, all the metal wires 21 can be completely combined with the welding surface 111 in a hot melting mode, and the power transmission safety of the cable 100 is prevented from being reduced due to the irregular shape of the uncontrolled electric connector.
In a preferred embodiment, the metallic connecting member 1 is provided with a welding portion 11, the welding surface 111 is provided on the welding portion 11, and the welding portion 11 is further provided with a non-planar opposite surface 112. Specifically, the "non-planar" may include a case where the main body is planar but has a structure such as a concave portion or a convex portion; it also includes the structure that the main body form itself is non-planar (such as regular or irregular curved surface, etc.), and concave or convex parts can be arranged on it. So configured, the welding portion 11 can be more easily held and positioned by an auxiliary instrument (not shown) through the non-planar opposite surface 112 than through a complete plane. Therefore, the non-planar opposite surface 112 can improve the stability of the metal connecting part 1 during ultrasonic welding, including the holding stability of the metal connecting part 1 itself during welding, and also including the thermal stability during ultrasonic welding. Referring to fig. 1 and 2, in the first embodiment, the welding portion 11 is a flat plate, the welding surface 111 and the opposite surface 112 are disposed on the upper and lower sides of the welding portion 11 opposite to each other, the opposite surface 112 is flat, but a plurality of concave portions 113 are disposed on the opposite surface 112, such that the auxiliary device can stably limit the opposite surface 112 through the concave portions 113, thereby preventing the welding portion 11 from unnecessarily oscillating or moving during the ultrasonic welding process. In another embodiment, the welded portion 11 is not limited to the flat plate shape, and the facing surface 112 may be another surface on the welded portion 11.
Specifically, referring to the different embodiments shown in fig. 1 to 7, the main body shape of the opposing surface 112 may be planar or circular arc, such as the main body shape of the opposing surfaces 112, 112' is planar in the first and second embodiments, while the main body shape of the opposing surface 112 ″ is circular arc-shaped curved surface in the third embodiment. And the opposite faces 112, 112 ', 112 "of the different embodiments are each provided with a number of recesses 113, 113', 113". So configured, the opposite faces 112, 112 ', 112 "of the different body shapes can be stably held on the auxiliary instrument through the concave parts 113, 113', 113" thereon, and the stability of ultrasonic welding is improved. In other embodiments, the main body of the opposing surface 112 may have other regular/irregular shapes.
The concave portion 113 is in a dot shape or a linear shape. Specifically, in the first and second embodiments, the concave portions 113 and 113' are point-shaped and arranged in an array; in the third embodiment, the concave portions 113 "are formed in a ring-shaped line shape provided on the arc-shaped facing surface 112" and are equidistantly distributed. This arrangement can further improve the stability of the welded parts 11, 11', 11 ″ during welding. Of course, in other embodiments, the concave portion 113 may have any other concave/convex shape.
In the first step, the metal wires 21 are gathered together by a limiting clamp (not shown), a contact surface 22 for contacting with the limiting clamp is provided on the welded metal wires 21, and the contact surface 22 is non-planar. With such an arrangement, in the ultrasonic welding process, the non-planar contact surface 22 can make the limiting clamp and the metal wire 21 always in a stable limiting state, so as to prevent unnecessary displacement between the metal wire 21 and the limiting clamp in the welding process, thereby affecting the ultrasonic welding effect. In the first and second embodiments, the limiting clamp limits the metal wires 21 and 21' to a rectangular body, referring to the first embodiment, the upper surface of the rectangular body is the contact surface 22, in this embodiment, a plurality of concave ribs 23 are arranged on the contact surface 22 at intervals, so that the contact surface 22 is a non-planar surface, and the limiting clamp can be prevented from being separated from the metal wires 21 in the front and rear directions during the welding process. In other embodiments, the restricting jig may restrict the metal wire 21 to have another shape, the contact surface 22 may have another shape such as a curved surface, and the contact surface 22 may have any other concave/convex shape other than the concave rib 23 to make the contact surface non-planar.
Fig. 3 to 4 are schematic views illustrating a second embodiment of the present invention. The connecting piece is provided with two welding parts 11 ', and the metal conducting wires 21 ' are limited in the middle of the two welding parts 11 ' in a centralized manner and are welded together in an ultrasonic welding mode. So set up, restriction anchor clamps can be in the left and right sides orientation with metal wire 21 ' spacing in between two upper and lower platelike welding parts 11 ', so, can further improve spacing effect between the metal wire 21 ', on the other hand, in power transmission process, because the area of contact between metal wire 21 ' and the welding part 11 ' is bigger, more does benefit to and improves transmission performance and transmission security.
Referring to fig. 5, 6 and 7, which are schematic views illustrating a third embodiment of the present invention, the welding portion 11 "is annular, and the annular welding portion 11" is wrapped around the metal wires 21 "and welded together by ultrasonic welding. With this arrangement, the metal wire 21 "is limited in the annular welding portion 11" and then ultrasonic welding is performed, so that the periphery of the metal wire 21 "is in contact with the welding portion 11", the contact area between the metal wire 21 "and the welding portion 11" is increased to the maximum extent, and the transmission performance and the transmission safety thereof are increased to the maximum extent.
As a further improvement of the third embodiment of the present invention, the annular welding portion 11 ″ is provided with a longitudinal split open groove 114 ". With such an arrangement, the split slot 114 "provides a certain space for opening or reducing the opening 116" of the annular welding portion 11 ", and the size of the opening 116" can be adjusted according to the thickness of the inner metal wire 21 ", thereby facilitating better contact between the metal wire 21 and the welding portion 11.
Referring to fig. 8 and 9, in a fourth embodiment of the present invention, the welding portion 11 "' may also be a columnar shape, and the plurality of metal wires 21" ' are concentrically limited around the columnar welding portion 11 "' to be welded together by ultrasonic welding. With such an arrangement, the metal wire 21 "'is completely limited on the columnar welding part 11"', so that the periphery of the welding part 11 "'can be closely attached to the metal wire 21"', thereby improving the transmission performance and the transmission safety thereof to the greatest extent. Specifically, the columnar welded portion 11 "'may be welded to the metal wire 21"' by ultrasonic welding after being riveted. It should be noted that the columnar welding portion 11 "'may also be understood that the welding portion 11"' has a non-planar opposite surface inside, which is not shown in the drawings, but still falls within the protection scope of the present invention.
In the fourth embodiment of the present invention, the columnar welding portion 11 "'is connected to a main body portion 115"', and the periphery of the columnar welding portion 11 "'is smaller than the main body portion 115"'. In this way, the thickness of the welded portion 11 ' ″ may be manufactured according to actual conditions, and in other embodiments, the welded portion 11 ' ″ may be the same as the thickness of the main body portion 115 ' ″ or may have other shapes and sizes.
In the present invention, an insulating portion (not shown) may be further wrapped outside the welded metal wire 21. The insulating portion may be made of an insulating material to insulate external air, moisture, or the like, and protect the outside of the welded metal wire 21.
The electrical connector 100 is a high current power transmission connector. By such arrangement, in other embodiments, specifically, the electrical connector 100 can be applied to the fields of new energy automobiles and the like for high-power transmission, and the transmission safety is improved, so that the development trend of energy conservation, environmental protection and installation performance is met.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an ultrasonic bonding electricity connecting piece, electric connecting piece includes metal connecting part and cable, the cable is equipped with a plurality of independent wire, its characterized in that: the metal connecting part is provided with a welding surface for welding the plurality of wires, and the method comprises the following steps:
the method comprises the following steps: carrying out centralized limiting on the plurality of metal conductors, and positioning the metal conductors with the centralized limiting on the welding surface;
step two: the concentrated limiting metal lead and the welding surface are welded together in an ultrasonic welding mode.
2. An ultrasonic welding electrical connector according to claim 1, wherein: the metal connecting part is provided with a welding part, the welding surface is arranged on the welding part, and the welding part is also provided with a non-planar opposite surface.
3. An ultrasonic welding electrical connector according to claim 2, wherein: the opposite surface main body is in a plate shape or an arc shape, a plurality of concave parts are arranged on the opposite surface, and the concave parts are in a point shape or a linear shape.
4. An ultrasonic welding electrical connector according to claim 1, wherein: in the first step, the metal wires are gathered together by using a limiting clamp, and a contact surface for contacting with the limiting clamp is arranged on the welded metal wires and is non-planar.
5. An ultrasonic welding electrical connector according to claim 1, wherein: the connecting piece is equipped with two welding parts, a plurality of metal conductors are concentratedly spacing in carry out ultrasonic bonding and butt fusion together in the middle of two welding parts.
6. An ultrasonic welding electrical connector according to claim 1, wherein: the welding part is annular, and the annular welding part covers the outer sides of the metal wires and is welded together through ultrasonic welding.
7. An ultrasonic welding electrical connector according to claim 6, wherein: the annular welding part is provided with a longitudinal split opening.
8. An ultrasonic welding electrical connector according to claim 1, wherein: the welding part is columnar, and the metal wires are concentrated and limited around the columnar welding part to be welded together by ultrasonic welding.
9. An ultrasonic welding electrical connector according to claim 1, wherein: and the outer side of the welded metal wire is wrapped with an isolation part.
10. An ultrasonic welding electrical connector according to any one of claims 1 to 9, wherein: the electric connector is a high-current power supply transmission connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787411.2A CN110635256A (en) | 2019-08-23 | 2019-08-23 | Ultrasonic welding electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910787411.2A CN110635256A (en) | 2019-08-23 | 2019-08-23 | Ultrasonic welding electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110635256A true CN110635256A (en) | 2019-12-31 |
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ID=68969068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910787411.2A Pending CN110635256A (en) | 2019-08-23 | 2019-08-23 | Ultrasonic welding electrical connector |
Country Status (1)
| Country | Link |
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| CN (1) | CN110635256A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023203242A1 (en) * | 2022-04-22 | 2023-10-26 | Kromberg & Schubert Automotive Gmbh & Co. Kg | Electric cable or electric wire provided with a plug contour for directly plugging into a mating plug |
-
2019
- 2019-08-23 CN CN201910787411.2A patent/CN110635256A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023203242A1 (en) * | 2022-04-22 | 2023-10-26 | Kromberg & Schubert Automotive Gmbh & Co. Kg | Electric cable or electric wire provided with a plug contour for directly plugging into a mating plug |
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Effective date of registration: 20220809 Address after: Area K, 3rd Floor, Building 2, No. 1918, Xupan Road, Xuhang Town, Jiading District, Shanghai, 201800 Applicant after: Shanghai Weilan Industrial Product Design Co., Ltd. Address before: 215316 room 3, 3232 Beimen Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: SUZHOU WEILAN PRECISION COMPONENTS CO.,LTD. |
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