CN201783755U

CN201783755U - Double-row-teeth ultrasonic die

Info

Publication number: CN201783755U
Application number: CN2010205089589U
Authority: CN
Inventors: 严卓晟; 严卓理; 严锦璇; 卢小斌; 钟杏桃; 黄伟枢
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-27
Filing date: 2010-08-27
Publication date: 2011-04-06
Anticipated expiration: 2020-08-27

Abstract

The utility model discloses a double-row-teeth ultrasonic die, which comprises a die body; double rows of welding teeth are arranged on the die body; the cross section of the welding end of the die body is square; and double rows of welding teeth are respectively arranged on four sides of the welding end. The utility model has the advantages that pole pieces of a power battery can be quickly welded in position at a time, so that the welding speed is increased; in addition, the consistence can be effectively maintained when one-time welding regularity is good; and the powder vibration phenomenon caused by two-time welding is effectively avoided, so that the pole piece quality is ensured.

Description

Double tooth supersonic mould

Technical field

The utility model relates to the ultrasonic welding mould field, is specially a kind of double tooth supersonic mould that can improve speed of welding and welding regularity.

Background technology

The ultrasonic bonding principle is to connect to draw the 220V power supply, opens supersonic generator, 50/60 hertz of current conversion is become high frequency electric energy such as 15,20,30 or 40 KHzs.The high-frequency electrical energy that is converted is by ultrasonic transducer system and then convert mechanical oscillation with equifrequent to, can insert the luffing function system when needing, through after the amplitude modulation mechanical oscillation of adjusting being delivered on the mould soldering tip.The mould soldering tip is delivered to the junction surface of workpiece to be welded with the vibrational energy that receives, and in this zone, vibrating function makes surface of the work phase to be welded mutual friction and forms closely fusion of infiltration between the molecular layer of interface.Because the metal ultrasonic bonding has fast, energy-conservation, fusion intensity height, good conductivity, no-spark, be better than advantages such as cold conditions processing, be widely used in the nickel screen and the welding of nickel sheet of Ni-MH battery, lithium battery, polymer battery Copper Foil and the welding of nickel sheet, aluminium foil and aluminium flake welding, the electric wire welding, knit into one and many wire harness welding, electric wire and various electronic component, contact, the connector welding, various electrical home appliances, the large-scale radiating seat of Automobile Products, heat-exchanging fin, the welding of the honeycomb heart, electromagnetic switch, big electric current contact such as no-fuse switch, the fields such as welding of dissimilar metal sheet.

High-capacity lithium-ion power battery is a kind of with the big capacity that satisfies hybrid-electric car, pure electric automobile, electric bicycle, battery-operated motor cycle, uninterrupted power source, hay mover, mine lamp and Compact Power Plant power storage and conversion, high-power large-scale lithium ion battery.The characteristics that lithium-ion-power cell has the energy density height, security is good and have extended cycle life, and can use electric energy to replace petroleum-based energy, be the clean energy resource of a kind of ten minutes friendly environment, energy-saving and emission-reduction, low-carbon (LC), become the first-selected mobile energy of electric motor car.

The pole piece that high-capacity lithium-ion power battery is used is because the increase of capacity requires its live area also bigger, to reduce internal resistance.The ultrasonic welding mould of existing welding battery pole piece all only is provided with a row and welds tooth, is to weld once earlier when the great-capacity power battery pole piece is welded, and then carries out the welding second time to strengthen connection.In second time welding process, unavoidably to move pole piece well, to adjust the welding position.In the process of moving and welding, welding efficiency is lower; Welding is difficult to neatly in addition, and uniformity is good inadequately; Even more serious is to produce shake powder phenomenon in secondary welding, and the electrode material shake that part is coated in pole piece falls, and will have a strong impact on the follow-up product quality of electrokinetic cell.Therefore, need improve existing mold.

The utility model content

At the deficiency that above-mentioned prior art exists, the purpose of this utility model provides and a kind ofly can improve speed of welding and regularity, alleviates the double tooth supersonic mould of the electrode material damage that pole piece is applied.

To achieve these goals, the technical scheme that the utility model adopted is: double tooth supersonic mould, comprise die ontology, die ontology be provided with double weldering tooth.

The cross section of the welding ends of described die ontology is a square, is provided with double weldering tooth in four sides of welding ends.

Described weldering tooth is a landing shape.

The advantage that the utlity model has is: can realize the rapid welding that once is welded in place effectively raising speed of welding to the pole piece of electrokinetic cell; In addition, once Han Jie regularity is good, can effectively keep the uniformity of solder joint; The shake powder phenomenon of effectively having avoided secondary welding to produce, the quality of assurance pole piece.

Description of drawings

Fig. 1 is the three-dimensional structure diagram of the double tooth supersonic mould of the utility model;

Fig. 2 is the front view of the double tooth supersonic mould of the utility model;

Fig. 3 is the right view of the double tooth supersonic mould of the utility model.

The specific embodiment

Below in conjunction with the drawings and specific embodiments the double tooth supersonic mould of the utility model is described in detail.

Double tooth supersonic mould shown in Fig. 1～3, comprises die ontology 1, die ontology 1 be provided with double weldering tooth 2.The cross section of the welding ends of die ontology 1 is a square, is provided with double weldering tooth 2 in four sides of welding ends, can realize that like this weldering tooth of four sides is rotated welding, prolongs the service life of supersonic mould.Weldering tooth 1 can be the body landing shape, is beneficial to welding.Die ontology 1 is provided with bolt hole, so that connect.The utility model can be realized the rapid welding that once is welded in place effectively raising speed of welding to the pole piece of electrokinetic cell; In addition, once Han Jie regularity is good, can effectively keep consistency; The shake powder phenomenon of effectively having avoided secondary welding to produce, the quality of assurance pole piece.

The foregoing description is not to be limitation of the present invention; the those of ordinary skill in relevant technologies field; under the situation that does not break away from the spirit and scope of the present invention; can also make various variations and modification; therefore all technical schemes that are equal to also should belong to category of the present invention, and scope of patent protection of the present invention should be limited by each claim.

Claims

1. double tooth supersonic mould comprises die ontology, it is characterized in that: die ontology be provided with double weldering tooth.

2. double tooth supersonic mould as claimed in claim 1 is characterized in that: the cross section of the welding ends of described die ontology is provided with double weldering tooth for square in four sides of welding ends.

3. double tooth supersonic mould as claimed in claim 2 is characterized in that: described weldering tooth is the body landing shape.