CN106624314A - Alternating current point welding machine for welding of cable and electrode plate - Google Patents
Alternating current point welding machine for welding of cable and electrode plate Download PDFInfo
- Publication number
- CN106624314A CN106624314A CN201710103211.1A CN201710103211A CN106624314A CN 106624314 A CN106624314 A CN 106624314A CN 201710103211 A CN201710103211 A CN 201710103211A CN 106624314 A CN106624314 A CN 106624314A
- Authority
- CN
- China
- Prior art keywords
- cable
- electrode
- welding
- electrode tip
- welding machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/222—Non-consumable electrodes
Abstract
The invention discloses an alternating current point welding machine for welding of a cable and an electrode plate. The alternating current point welding machine comprises a first electrode tip and a second electrode tip. The first electrode tip and the second electrode tip are made of tungsten alloy materials containing 3wt% of tho2. The first electrode tip is installed on a power device and is driven by the power device to move up and down. The second electrode tip is located below the first electrode tip and is installed on a working surface. The surface of the second electrode tip is provided with an arc-shaped groove. During welding, the cable is placed in the arc-shaped groove. The two ends of the arc-shaped groove are in a swallowtail shape. According to the alternating current point welding machine, debunching of the cable is prevented through the second electrode tip, the heating area is concentrated, and the welding efficiency is high.
Description
Technical field
It is specifically a kind of for cable and the ac spot welding machine of electrode plate welding the present invention relates to a kind of mash welder.
Background technology
Solar assembly junction box is used as the power transmission of photovoltaic cell and the core component of performance guarantee, and its performance is direct
Have impact on the electrical efficiency and reliability of photovoltaic plant.Terminal box design is collection electrical design, Machine Design and a material supply section
The cross-cutting comprehensive design that combine, on the premise of photovoltaic system equipment standard is met, solar assembly junction box
Design must is fulfilled for：
(1) requirement of mechanical performance.It is little and attractive in appearance that junction box body not only should be designed, it is easy to injection mo(u)lding, assembling and dimension
Shield, but also to meet requirement of UL1703, IEC61215 and GB/T4798.6 standard to impulsive force, connection cable is being subject to
Safe and stable operation is can guarantee that when pulling force or torquing forces.
(2) design of solar assembly junction box should make it have excellent electrical security：Not only there is relatively low body
Resistance to reduce the power attenuation that terminal box is brought as far as possible, and with good radiating mode and rational cavity volume
Effectively to reduce internal temperature, to meet electrical safety requirements；By being improved using high-insulativity material and Design of Mechanical Structure
The electric clearance and creep age distance of terminal box, so as to lift the security of terminal box；Using high electrical security diode and change
It is apt to its packaged type in terminal box photovoltaic cell is damaged with avoids or reducing hot spot phenomenon.
In recent years, with the fast development of photovoltaic plant scale business application, the requirement day of photovoltaic system equipment standard
Benefit is improved, and the current carrying capacity (maximum current of current terminal box can reach 30A) of solar assembly junction box is increasing,
Therefore, on the premise of solar assembly junction box mechanical performance is ensured, how to improve its heat-sinking capability and become and avoid because of hot spot
The safe key link of the power Transmission of photovoltaic cell is damaged and determined to phenomenon to photovoltaic cell.In order to ensure that solar components connect
The heat produced during diode operation in line box can be derived rapidly, and battery lead plate is generally manufactured using T2 copper materials, therefore, how to ensure
Cable becomes the key issue in solar assembly junction box manufacture with the connection mechanical performance and electrical and thermal conductivity performance of battery lead plate.
Battery lead plate and cable is connected with mechanical snap and welding structure in solar assembly junction box.Mechanical snap is usual
The structure fastened with spring leaf plus screw, this structure is simple to operate quick in component factory, advantage of lower cost, but even
The reliability for connecing is poor, and junction contact resistance is relatively large, and its electrical and thermal conductivity performance is poor.Traditional welding rod melts in welding method
Changing weldering needs to be carried out under argon gas protection, and not only efficiency is low, high cost, and to copper sheet and the welding point of copper cable wire harness
Reliability；The soldering of solder is added, the reliability of this structure connection is better than clamping, and contact resistance is relatively
It is little, have the disadvantage that insufficient strength is high during welding.Electric resistance welding is a kind of efficient method of attachment, but the excellent electrical and thermal conductivity of copper material
It is that electric resistance welding is extremely difficult between fine copper part, while the features of shape of core of a cable further has increased access to high-quality welded joint
Difficulty.
The content of the invention
It is an object of the invention to provide a kind of ac spot welding machine for cable and electrode plate welding, mash welder profit electrode
The transient high-current that head applies, electric current is allowed to fusing and is integrated by the battery lead plate generation heat of core of a cable and terminal box.Should
Cable prepared by mash welder has the metallurgy and excellent mechanical performance of densification with battery lead plate solder joint, not only ensure that it connects
Tactile Mechanical Reliability, and less contact resistance also makes solder joint have good electrical and thermal conductivity.
In order to realize above-mentioned technical purpose, the technical scheme is that：
A kind of ac spot welding machine for cable and electrode plate welding, including first electrode head and second electrode head.In order to
Make there is larger potential difference between electrode and welded piece that (thorium tungsten alloy current potential is -0.05V, and the normal potential of copper is
Weld zone 0.34V) is set to produce more heat, while avoiding electrode during welding viscous with by bit copper battery lead plate and core of a cable generation
Connect, the material of the first electrode head and second electrode head is containing 3wt%ThO2Tungsten alloy material.Thorium tungsten alloy be W and
ThO2Mixed powder Jing bars, swage, stretch, the operation such as alignment obtains tungsten tungsten alloy electrode rod, is subsequently processed into required form
Electrode.ThO is added in tungsten alloy2Elevated temperature strength, recrystallization temperature and the high temperature creep property of tungsten alloy can be improved, while behaviour
Making workman will not suck thorium element in pinpoint welding procedure, avoid the evaporation of thorium tungsten alloy arc welding radiothorium and cause operator
Physically impaired problem.
The first electrode head is arranged on power set, preferably, the power set are cylinder or power cylinder.The
One electrode tip moves up and down under the drive of power set；The second electrode head is located at below first electrode head, and described second
Electrode tip is arranged on work top.
The surface of the second electrode head has deep-slotted chip breaker, during welding, cable, the deep-slotted chip breaker is placed in the deep-slotted chip breaker
Two ends be swallow-tail form.The effect of the deep-slotted chip breaker of mash welder second electrode head surface of the present invention is：(1) heating surface area when welding
Concentrate, improve welding efficiency；(2) spacing effect is played to core of a cable, it is therefore prevented that postwelding core of a cable is at random, is ensured
The anti-pulling performance of solar assembly junction box.
During welding, the cable to be welded is placed in the deep-slotted chip breaker of second electrode head surface, preferably, the arc
The cable volume placed in shape groove is 1.25 with the volume ratio of deep-slotted chip breaker:1, the electricity to be welded is placed thereon according to welding position
Pole plate, then first electrode head initial pressure is moved downward and applied between battery lead plate and cable under power set drive
Apply the instantaneous large-current of 5～10KA simultaneously, using the high temperature produced at contact resistance by core of a cable and connecing of contacting
The battery lead plate fusing of line box is integrated, and power-off simultaneously applies bigger pressure between two electrodes, welds on cable and battery lead plate after cooling
It is connected together.
Description of the drawings
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is second electrode head schematic diagram.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
As shown in Figure 1, 2, a kind of ac spot welding machine for cable and electrode plate welding, including on fuselage 1 first is electric
The material of cartridge 3 and second electrode 4, first electrode 3 and second electrode 4 is containing 3wt%ThO2Tungsten alloy material
(for example, the thorium tungsten alloy material of BRGIMM Advanced Materials Science ＆ Technology Co., Ltd. (former Beijing Tungsten and Molybdenum Materials Factory) production).
The first electrode 3 is arranged on power cylinder 2 (or cylinder equal power device), and first electrode 3 is filled in power
Move up and down under the drive put；The second electrode 4 is located at the lower section of first electrode 3, and the second electrode 4 is arranged on work
Make on table top 5, the surface of the second electrode 4 has deep-slotted chip breaker 6, and the two ends of the deep-slotted chip breaker 6 are swallow-tail form.
During welding, two electrodes of the battery lead plate and cable to be welded respectively as circuit are placed in the He of first electrode 3
Between second electrode 4, cable is placed in deep-slotted chip breaker 6, and the cable volume placed in deep-slotted chip breaker is with the volume ratio of deep-slotted chip breaker
1.25:1, using the high temperature produced at contact resistance, by metal instant melting, so as to metal connecting sheet and cable firmly be welded
It is connected together.
Above-described embodiment limits never in any form the present invention, every to be obtained by the way of equivalent or equivalent transformation
Technical scheme all fall within protection scope of the present invention.
Claims (4)
1. a kind of ac spot welding machine for cable and electrode plate welding, it is characterised in that including first electrode head and second electrode
The material of head, the first electrode head and second electrode head is containing 3wt%ThO2Tungsten alloy material；The first electrode head
On power set, first electrode head moves up and down under the drive of power set；The second electrode head is located at first
Electrode tip lower section, the second electrode head is arranged on work top, and the surface of the second electrode head has deep-slotted chip breaker, welding
When, cable is placed in the deep-slotted chip breaker, the two ends of the deep-slotted chip breaker are swallow-tail form.
2. a kind of ac spot welding machine for cable and electrode plate welding according to claim 1, it is characterised in that：Welding
When, the cable volume placed in the deep-slotted chip breaker is 1.25 with the volume ratio of deep-slotted chip breaker:1.
3. a kind of ac spot welding machine for cable and electrode plate welding according to claim 1, it is characterised in that：It is described
Power set are cylinder.
4. a kind of ac spot welding machine for cable and electrode plate welding according to claim 1, it is characterised in that：It is described
Power set are power cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103211.1A CN106624314A (en) | 2017-02-24 | 2017-02-24 | Alternating current point welding machine for welding of cable and electrode plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710103211.1A CN106624314A (en) | 2017-02-24 | 2017-02-24 | Alternating current point welding machine for welding of cable and electrode plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106624314A true CN106624314A (en) | 2017-05-10 |
Family
ID=58847505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710103211.1A Pending CN106624314A (en) | 2017-02-24 | 2017-02-24 | Alternating current point welding machine for welding of cable and electrode plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106624314A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649772A (en) * | 2017-10-30 | 2018-02-02 | 扬中市龙飞达汽车配件有限公司 | A kind of cable welding equipment for photovoltaic junction box |
-
2017
- 2017-02-24 CN CN201710103211.1A patent/CN106624314A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107649772A (en) * | 2017-10-30 | 2018-02-02 | 扬中市龙飞达汽车配件有限公司 | A kind of cable welding equipment for photovoltaic junction box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170510 |
|
| WD01 | Invention patent application deemed withdrawn after publication |