CN206536120U - It is a kind of to be used for the ac spot welding machine of cable and electrode plate welding - Google Patents
It is a kind of to be used for the ac spot welding machine of cable and electrode plate welding Download PDFInfo
- Publication number
- CN206536120U CN206536120U CN201720170354.XU CN201720170354U CN206536120U CN 206536120 U CN206536120 U CN 206536120U CN 201720170354 U CN201720170354 U CN 201720170354U CN 206536120 U CN206536120 U CN 206536120U
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- China
- Prior art keywords
- electrode head
- cable
- electrode
- deep
- chip breaker
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Abstract
The utility model discloses a kind of for cable and the ac spot welding machine of electrode plate welding, including first electrode and second electrode head, the material of the first electrode head and second electrode head is to contain 3wt%ThO2Tungsten alloy material；The first electrode head is arranged on power set, and first electrode head moves up and down under the drive of power set；The second electrode head is located at first electrode head lower section, and the second electrode head is arranged on work top, and the surface of the second electrode head has deep-slotted chip breaker, during welding, cable is placed in the deep-slotted chip breaker, the two ends of the deep-slotted chip breaker are swallow-tail form；The utility model mash welder second electrode head prevents cable at random, and heating surface area is concentrated, and welding efficiency is high.
Description
Technical field
The utility model is related to a kind of mash welder, specifically a kind of for cable and the ac spot welding machine of electrode plate welding.
Background technology
Solar assembly junction box is as the power transmission of photovoltaic cell and the core component of performance guarantee, and its performance is direct
It has impact on the electrical efficiency and reliability of photovoltaic plant.Terminal box design is a collection electrical design, Machine Design and material supply section
Learn the cross-cutting comprehensive design being combined, 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 small and attractive in appearance that junction box body should not only be designed, it is easy to injection molding, assembling and dimension
Shield, but also to meet requirement of UL1703, IEC61215 and GB/T4798.6 standard to impulsive force, connection cable by
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 has good radiating mode and rational cavity volume to reduce the power attenuation that terminal box is brought as far as possible
Internal temperature effectively is reduced, to meet electrical safety requirements；Improved by 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 and photovoltaic cell is damaged with avoiding 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, ensure solar assembly junction box mechanical performance on the premise of, how to improve its heat-sinking capability turn into avoid because of hot spot
The key link of the power Transmission safety of photovoltaic cell is damaged and determined to phenomenon to photovoltaic cell.In order to ensure that solar components connect
The heat produced in line box during diode operation can be exported rapidly, and how battery lead plate generally using the manufacture of T2 copper materials, therefore, ensures
The connection mechanical performance and electrical and thermal conductivity performance of cable and battery lead plate turn into the key issue during solar assembly junction box is manufactured.
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 connect 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 carry out under argon gas protection, and not only efficiency is low, cost is high, 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 small, have the disadvantage that insufficient strength is high during welding.Electric resistance welding is a kind of efficient connection method, 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.
Utility model content
The purpose of this utility model is to provide a kind of for cable and the ac spot welding machine of electrode plate welding, mash welder profit
The transient high-current that electrode tip applies, electric current produces heat by core of a cable and the battery lead plate of terminal box and is allowed to be molten into one
Body.Cable prepared by the mash welder has fine and close metallurgy and excellent mechanical performance with battery lead plate solder joint, not only ensures
The Mechanical Reliability of its contact, and less contact resistance also makes solder joint have good electrical and thermal conductivity.
In order to realize above-mentioned technical purpose, the technical solution of the utility model is：
It is a kind of to be used for the ac spot welding machine of 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 electrode by bit copper battery lead plate and core of a cable with occurring to glue when avoiding welding
Connect, the material of the first electrode head and second electrode head is to contain 3wt%ThO2Tungsten alloy material.Thorium tungsten alloy be W and
ThO2Mixed powder through bar processed, swage, stretch, the process such as alignment obtains tungsten tungsten alloy electrode rod, shape needed for being subsequently processed into
Electrode.ThO is added in tungsten alloy2The elevated temperature strength, recrystallization temperature and high temperature creep property of tungsten alloy can be improved, is grasped simultaneously
Thorium element will not be sucked in pinpoint welding procedure by making workman, avoided the evaporation of thorium tungsten alloy arc welding radiothorium and caused operator
The problem of somatic damage.
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 first electrode head lower section, described second
Electrode tip is arranged on work top.
The surface of the second electrode head has deep-slotted chip breaker, and during welding, cable, the deep-slotted chip breaker are placed in the deep-slotted chip breaker
Two ends be swallow-tail form.The effect of the deep-slotted chip breaker of the utility model mash welder second electrode head surface is：(1) it is heated when welding
Area is concentrated, and improves 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, protected
The anti-pulling performance of solar assembly junction box is hindered.
During welding, in the deep-slotted chip breaker for the cable to be welded being placed on second electrode head surface, preferably, the arc
The cable volume and the volume ratio of deep-slotted chip breaker placed in shape groove are 1.25:1, the electricity to be welded is placed thereon according to welding position
Pole plate, then first electrode head moved downward under power set drive and apply initial pressure between battery lead plate and cable
Apply 5~10KA instantaneous large-current 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 is powered off and is applied bigger pressure between two electrodes, welds cable and battery lead plate after cooling
It is connected together.
Brief description of the drawings
Fig. 1 is the utility model schematic diagram.
Fig. 2 is second electrode head schematic diagram.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, 2, it is a kind of for cable and the ac spot welding machine of electrode plate welding, including the first electricity on fuselage 1
The material of cartridge 3 and second electrode first 4, first electrode first 3 and second electrode first 4 is to contain 3wt%ThO2Tungsten alloy material
(for example, thorium tungsten alloy material of BRGIMM Advanced Materials Science ＆ Technology Co., Ltd. (former Beijing Tungsten and Molybdenum Materials Factory) production).
The first electrode first 3 is arranged on power cylinder 2 (or cylinder equal power device), and first electrode first 3 is filled in power
Moved up and down under the drive put；The second electrode first 4 is located at first 3 lower section of first electrode, and the second electrode first 4 is arranged on work
Make on table top 5, the surface of the second electrode first 4 has deep-slotted chip breaker 6, and the two ends of the deep-slotted chip breaker 6 are swallow-tail form.
During welding, the battery lead plate and cable to be welded are placed in first 3 He of first electrode respectively as two electrodes of circuit
Between second electrode first 4, cable is placed in deep-slotted chip breaker 6, and the cable volume and the volume ratio of deep-slotted chip breaker placed in deep-slotted chip breaker are
1.25:1, using the high temperature produced at contact resistance, by metal instant melting, so that metal connecting sheet and cable firmly be welded
It is connected together.
Above-described embodiment does not limit the utility model in any way, every by the way of equivalent substitution or equivalent transformation
The technical scheme of acquisition is all fallen within protection domain of the present utility model.
Claims (4)
1. it is a kind of for cable and the ac spot welding machine of electrode plate welding, it is characterised in that including first electrode head and second electrode
Head, the material of the first electrode head and second electrode head is to contain 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
Below electrode tip, the second electrode head is arranged on work top, and the surface of the second electrode head has deep-slotted chip breaker, welds
When, the deep-slotted chip breaker is interior to place cable, and the two ends of the deep-slotted chip breaker are swallow-tail form.
2. it is according to claim 1 a kind of for cable and the ac spot welding machine of electrode plate welding, it is characterised in that：Welding
When, the volume ratio of the interior cable volume placed of the deep-slotted chip breaker and deep-slotted chip breaker is 1.25:1.
3. it is according to claim 1 a kind of for cable and the ac spot welding machine of electrode plate welding, it is characterised in that：It is described
Power set are cylinder.
4. it is according to claim 1 a kind of for cable and the ac spot welding machine of electrode plate welding, it is characterised in that：It is described
Power set are power cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170354.XU CN206536120U (en) | 2017-02-24 | 2017-02-24 | It is a kind of to be used for the ac spot welding machine of cable and electrode plate welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720170354.XU CN206536120U (en) | 2017-02-24 | 2017-02-24 | It is a kind of to be used for the ac spot welding machine of cable and electrode plate welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206536120U true CN206536120U (en) | 2017-10-03 |
Family
ID=59949384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720170354.XU Expired - Fee Related CN206536120U (en) | 2017-02-24 | 2017-02-24 | It is a kind of to be used for the ac spot welding machine of cable and electrode plate welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206536120U (en) |
-
2017
- 2017-02-24 CN CN201720170354.XU patent/CN206536120U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 |