CN212599605U - Welding electrode structure of conductive busbar assembly - Google Patents
Welding electrode structure of conductive busbar assembly Download PDFInfo
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- CN212599605U CN212599605U CN202021237917.0U CN202021237917U CN212599605U CN 212599605 U CN212599605 U CN 212599605U CN 202021237917 U CN202021237917 U CN 202021237917U CN 212599605 U CN212599605 U CN 212599605U
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Abstract
The utility model discloses a welding electrode structure of a conductive bus bar assembly, which comprises an upper electrode assembly and a lower electrode assembly, wherein the lower electrode assembly comprises a fixed side electrode assembly and a movable side electrode assembly, and the fixed side electrode assembly and the movable side electrode assembly are both arranged on a base; the upper electrode assembly comprises an upper electrode holder, an upper electrode and a clamping block. The utility model discloses holistic structural design has the welding stability, welding quality is good, advantages such as welding efficiency is high and environmental protection, make it realize replacing three-phase rectification resistance welder and carbon graphite electrode effectively and braze, and it can avoid producing the high temperature because of resistance easily and cause the circuit breaker to burn out and lead to whole power supply network inefficacy easily at the welded in-process, it can not only solve three-phase rectification resistance welder and required high and its three transformer to the electric wire netting and often produce alternate unbalanced problem because of the difference of parameter, it has still been solved and has adopted carbon graphite electrode brazing technology to weld the problem that welding quality unstability and contact resistance are big often appear.
Description
Technical Field
The utility model relates to a female subassembly welding electrode structure of arranging electrically conducts.
Background
The frame circuit breaker is an important component of a power supply system, a conductive busbar of the circuit breaker is generally welded together by a plurality of flexibly connected movable contact assemblies and conductive seats, the resistance of a conductive part is a key element in the working process of the circuit breaker, if the resistance of the part is too high, the circuit breaker is easily burnt due to high temperature generated by the resistance in the working process, so that the whole power supply system or a power supply network fails, and the generated consequence is very serious. The existing heavy current circuit breakers for large-scale power stations are mostly products produced by foreign brands, such as schneider, ABB and other manufacturers, at present, the products are welded by a three-phase rectification resistance welding machine, three transformers are generally installed on the three-phase rectification resistance welding machine, the problem of phase imbalance often occurs due to different parameters of the three transformers, the current power grid requirement of the three-phase rectification welding machine is very high, most circuit breaker manufacturers do not have the power grid condition, only a carbon graphite electrode brazing process can be adopted for welding, and carbon graphite electrode brazing has the defects of unstable welding quality, large contact resistance and the like, so the industry hopes to develop a conductive busbar assembly welding electrode structure of a frame circuit breaker with the advantages of high efficiency, environmental protection, high welding quality, low manufacturing cost and the like.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a female subassembly welding electrode structure of arranging electrically conductive, its holistic structural design has the welding stability, welding quality is good, appearance quality is good, welding efficiency is high, the environmental protection and require low grade advantage to the electric wire netting, and it can avoid producing the high temperature because of resistance easily and cause the circuit breaker to burn out and lead to whole power supply network inefficacy easily at the welded in-process, it can solve three-phase rectification resistance welder and require high and its three transformer often produce alternate unbalanced problem because of the difference of parameter to the electric wire netting, it has still solved and has adopted carbon graphite electrode brazing technology to weld the problem that welding quality is unstable and contact resistance is big often appearing. The utility model discloses a realize through following technical scheme:
the welding electrode structure of the conductive busbar assembly comprises an upper electrode assembly and a lower electrode assembly arranged below the upper electrode assembly, wherein the lower electrode assembly comprises a fixed side electrode assembly and a movable side electrode assembly which are oppositely arranged, and the fixed side electrode assembly and the movable side electrode assembly are both arranged on the base.
The fixed side electrode group is provided with a fixed side electrode seat, the fixed side electrode seat is arranged in an L shape, a fixed lower electrode is installed at the upper end of the fixed side electrode seat, a moving contact positioning component is installed on the surface of the upper end of the fixed side electrode seat, and a bottom conducting seat is installed on the upper surface of the right end of the fixed side electrode seat.
The movable side electrode group is provided with a side pressure oil cylinder mounting seat, a movable side electrode guide assembly arranged on the right end of the base is arranged in the side pressure oil cylinder mounting seat, a side pressure oil cylinder or a gas-liquid boosting cylinder is arranged on the outer side of the side pressure oil cylinder mounting seat, a movable side electrode seat is arranged on the movable side electrode guide assembly, a movable lower electrode is arranged on the left side of the movable side electrode seat, the fixed lower electrode and the movable lower electrode are combined together to form a lower electrode welding fixture used for clamping the conductive bus seat, and the shape of the lower electrode welding fixture is matched with the shapes of the two outer side walls of the conductive bus seat.
The upper electrode assembly consists of an upper electrode seat, an upper electrode and a clamping block, wherein the clamping block is arranged below the upper electrode seat, and the upper electrode is arranged in the clamping block.
Preferably, the welding electrode structure of the conductive busbar assembly is further provided with an outer water spraying mechanism, and the outer water spraying mechanism is arranged on one side of the fixed side electrode group. The external water spraying mechanism is a water spraying mechanism, mainly comprises a spray header, a water conveying pipe and other components, and the specific structure and the working principle of the external water spraying mechanism are common knowledge and are not explained in detail here.
Preferably, the back side of the movable side electrode holder is provided with a conductive connecting copper strip, and the conductive connecting copper strip and the fixed side electrode holder are connected to the same electrode of the welding transformer together.
Preferably, the conductive busbar comprises a moving contact, a flexible connection and a conductive busbar seat, the moving contact and the flexible connection of the conductive busbar are integrally formed, and the flexible connection of the conductive busbar is movably assembled and connected with the conductive busbar seat of the conductive busbar.
The utility model discloses a female subassembly welding electrode structure of arranging electrically conducts, including last electrode subassembly and lower electrode subassembly, lower electrode subassembly includes fixed side electrode group and activity side electrode group, fixed side electrode group and activity side electrode group all set up on the base, fixed side electrode group is provided with fixed side electrode holder, fixed bottom electrode, moving contact positioning element and bottom conducting seat, activity side electrode group is provided with side pressure hydro-cylinder mount pad, activity side electrode direction subassembly, side pressure hydro-cylinder or gas-liquid reinforcement jar, activity side electrode holder and activity bottom electrode, it includes the electrode holder to go up the electrode subassembly, go up electrode and clamp tight piece. The moving contact and the flexible connection of the conductive busbar of the utility model are integrated into a whole, and the flexible connection of the conductive busbar is movably assembled and connected with the conductive busbar seat of the conductive busbar; firstly, a conductive busbar seat of a conductive busbar is placed on a bottom conductive seat, and a moving contact of the conductive busbar is placed in a moving contact positioning component, so that flexible connection can be movably assembled and connected with the conductive busbar seat; when the side pressure oil cylinder or the gas-liquid boosting cylinder is started, the movable side electrode seat can be pushed to move left and right, the movable side electrode seat can drive the movable lower electrode to move left and right along with the movable lower electrode, so that the side pressure oil cylinder or the gas-liquid boosting cylinder can push the movable side electrode seat to move towards the conductive bus seat, a lower electrode welding clamp for clamping the conductive bus seat can be formed when the fixed lower electrode and the movable lower electrode are combined together, the shape of the lower electrode welding clamp is matched with the shapes of the two outer side walls of the conductive bus seat, and when the conductive connecting copper strip and the fixed side electrode seat are jointly connected to the same electrode of a welding transformer, the fixed lower electrode and the movable lower electrode can clamp the conductive bus seat to realize the welding current transmission of the conductive bus seat; when the upper electrode is connected to the other electrode of the welding transformer, welding current transmission can be realized on the flexible connection surface by the upper electrode pressure, and the clamping block prevents the conductive busbar seat from welding deformation by clamping the conductive busbar seat so as to ensure that the conductive busbar seat has good welding effect; during welding, the external water spraying mechanism can continuously spray cooling water so as to protect the soft connection from oxidation and blackening due to overheating in the welding process; the lower electrode assembly and the upper electrode assembly are utilized to continuously conduct large current and apply large pressure between the flexible connection and the conductive busbar seat, so that atoms between contact surfaces of the flexible connection and the conductive busbar seat are mutually diffused to achieve the purpose of welding after a workpiece is heated for a long time and reaches a certain temperature; the welding time of each electrifying is within 2000 milliseconds, the cooling time is within 500 milliseconds, then the welding is continued, the welding current is not lower than 5 ten thousand amperes, the welding current and the pulse frequency can be set according to the size of a workpiece until the whole welding process is completed according to the set program, and the holding pressure of the lower electrode welding clamp is adaptive to the welding current; the holding pressure of the lower electrode welding fixture is not lower than 10KN, the welding pressure of the upper electrode is not lower than 30KN, the upper electrode material can be made of molybdenum, tungsten or tungsten-molybdenum alloy material with high resistivity, after the intermediate frequency resistance welding machine completes welding according to the program energization, the full-automatic medium-frequency resistance welding of the conductive busbar is realized, the whole structural design has the advantages of stable welding, good welding quality, good appearance quality, high welding efficiency, environmental protection and the like, and it can avoid the circuit breaker burnout and the whole power supply network failure caused by the high temperature generated by the resistance in the welding process, it not only can solve the problems that the requirement of a three-phase rectifier resistance welding machine on a power grid is high and three transformers of the three-phase rectifier resistance welding machine are often unbalanced among phases due to different parameters, the problems of unstable welding quality and large contact resistance frequently caused by welding by adopting a carbon graphite electrode brazing process are solved.
Drawings
For the purpose of illustration, the invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.
Fig. 1 is a front view structure diagram of the welding electrode structure of the conductive busbar assembly of the present invention.
Fig. 2 is a front view structural diagram of a lower electrode assembly of the conductive busbar assembly welding electrode structure of the present invention.
Fig. 3 is a perspective view of the upper electrode assembly of the welding electrode structure of the conductive busbar assembly of the present invention.
Fig. 4 is a perspective view of the lower electrode assembly of the welding electrode structure of the conductive busbar assembly of the present invention.
Fig. 5 is a front view of the conductive busbar assembly welding electrode structure of the present invention.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
In this embodiment, as shown in fig. 1 to 5, the utility model discloses a female subassembly welding electrode structure that arranges of leading to electricity contains last electrode assembly 1, and sets up lower electrode assembly 2 below last electrode assembly 1, and lower electrode assembly 2 includes fixed side electrode group 3 and the activity side electrode group 4 that subtend set up, and fixed side electrode group 3 and activity side electrode group 4 all set up on base 5.
The fixed side electrode group 3 is provided with a fixed side electrode seat 6, the fixed side electrode seat 6 is arranged in an L shape, a fixed lower electrode 7 is installed at the upper end of the fixed side electrode seat 6, a moving contact positioning component 8 is installed on the surface of the upper end of the fixed side electrode seat 6, and a bottom conducting seat 9 is installed on the upper surface of the right end of the fixed side electrode seat 6.
The movable side electrode group 4 is provided with a side pressure oil cylinder mounting seat 10, a movable side electrode guide assembly 11 arranged on the right end of the base 5 is arranged in the side pressure oil cylinder mounting seat 10, a side pressure oil cylinder or a gas-liquid boosting cylinder 12 is arranged on the outer side of the side pressure oil cylinder mounting seat 10, the movable side electrode guide assembly 11 comprises a movable side electrode seat 13 arranged on the movable side electrode seat, a movable lower electrode 14 is arranged on the left side of the movable side electrode seat 13, the fixed lower electrode 7 and the movable lower electrode 14 are combined together to form a lower electrode welding fixture for clamping the conductive busbar seat 22, and the shape of the lower electrode welding fixture is matched with the shapes of the two outer side walls of the conductive busbar seat 22.
The upper electrode assembly 1 consists of an upper electrode holder 15, an upper electrode 16 and a clamping block 17, wherein the clamping block 17 is arranged below the upper electrode holder 15, and the upper electrode 16 is arranged in the clamping block 17.
In one embodiment, the welding electrode structure of the conductive busbar assembly is further provided with an external water spraying mechanism 18.
In one embodiment, the rear side of the movable side electrode holder 13 is mounted with a conductive connecting copper strip 19, and the conductive connecting copper strip 19 and the fixed side electrode holder 6 are commonly connected to the same electrode of the welding transformer.
In one embodiment, the conductive busbar includes a movable contact 20, a flexible connection 21 and a conductive busbar seat 22, the movable contact 20 and the flexible connection 21 of the conductive busbar are integrally formed, and the flexible connection 21 of the conductive busbar is movably assembled and connected with the conductive busbar seat 22 of the conductive busbar.
In one embodiment, the design principle of the welding electrode structure of the conductive busbar assembly is as follows: the movable contact 20 and the flexible connection 21 of the conductive busbar are integrally formed, and the flexible connection 21 of the conductive busbar is movably assembled and connected with the conductive busbar seat 22 of the conductive busbar; when a conductive busbar seat 22 of a conductive busbar is placed on the bottom conductive seat 9 and a moving contact 20 of the conductive busbar is placed in the moving contact positioning component 8, the flexible connection 21 can be movably assembled and connected with the conductive busbar seat 22; when the side pressure oil cylinder or the gas-liquid boosting cylinder 12 is started, the movable side electrode base 13 can be pushed to move left and right, the movable side electrode base 13 moving left and right can drive the movable lower electrode 14 to move left and right along with the movable lower electrode, so that the side pressure oil cylinder or the gas-liquid boosting cylinder 12 can push the movable side electrode base 13 to move towards the conductive busbar base 22, a lower electrode welding clamp for clamping the conductive busbar base 22 can be formed when the fixed lower electrode 7 and the movable lower electrode 14 are combined together, the shape of the lower electrode welding clamp is matched with the shapes of the two outer side walls of the conductive busbar base 22, and when the conductive connecting copper strip 19 and the fixed side electrode base 6 are jointly connected to the same electrode of a welding transformer, the conductive busbar base 22 can be clamped by the fixed lower electrode 7 and the movable lower electrode 14 to realize the transmission of welding current of the conductive busbar base 22; when the upper electrode 16 is connected to the other electrode of the welding transformer, the upper electrode 16 is pressed on the surface of the flexible connection 21 to realize the transmission of welding current, and the clamping block 17 prevents the welding deformation of the conductive bus bar seat 22 by clamping the conductive bus bar seat 22 so as to ensure that the conductive bus bar seat has good welding effect; when the welding device is used for welding, the external water spraying mechanism 18 can continuously spray cooling water on the welding device so as to protect the flexible connection 21 from being oxidized and blackened due to overheating in the welding process; the welding method comprises the following steps of continuously conducting high current and applying high pressure between the flexible connection 21 and the conductive busbar seat 22, so that atoms between contact surfaces of the flexible connection 21 and the conductive busbar seat 22 are mutually diffused to achieve the purpose of welding after a workpiece is heated for a long time and reaches a certain temperature; the welding time of each electrifying is within 2000 milliseconds, the cooling time is within 500 milliseconds, then the welding is continued, the welding current is not lower than 5 ten thousand amperes, the welding current and the pulse frequency can be set according to the size of a workpiece until the whole welding process is completed according to the set program, and the holding pressure of the lower electrode welding clamp is adaptive to the welding current; the holding pressure of the lower electrode welding fixture is not lower than 10KN, the welding pressure of the upper electrode 16 is not lower than 30KN, the material of the upper electrode 16 can be made of molybdenum, tungsten or tungsten-molybdenum alloy material with high resistivity, and after the welding is completed according to the program electrification, the intermediate frequency resistance welding of the conductive busbar can be completed automatically.
The utility model discloses a female subassembly welding electrode structure of arranging electrically conducts, including last electrode subassembly and lower electrode subassembly, lower electrode subassembly includes fixed side electrode group and activity side electrode group, fixed side electrode group and activity side electrode group all set up on the base, fixed side electrode group is provided with fixed side electrode holder, fixed bottom electrode, moving contact positioning element and bottom conducting seat, activity side electrode group is provided with side pressure hydro-cylinder mount pad, activity side electrode direction subassembly, side pressure hydro-cylinder or gas-liquid reinforcement jar, activity side electrode holder and activity bottom electrode, it includes the electrode holder to go up the electrode subassembly, go up electrode and clamp tight piece. The utility model discloses holistic structural design has the welding stability, welding quality is good, appearance quality is good, welding efficiency is high and advantages such as environmental protection, make its realization replace three-phase rectification resistance welder and carbon graphite electrode effectively and braze, and it can avoid producing the high temperature because of resistance easily and cause the circuit breaker to burn out and lead to whole power supply network failure easily at the welded in-process, it can solve three-phase rectification resistance welder and require high and its three transformer to the electric wire netting and often produce alternate unbalanced problem because of the difference of parameter, it has still been solved and has adopted carbon graphite electrode brazing technology to weld the problem that welding quality is unstable and contact resistance is big often appear.
The above-mentioned embodiment is only an example of the present invention, and is not intended to limit the scope of the present invention, and all technical solutions that are the same as or equivalent to the content of the claims of the present invention should be included in the scope of the present invention.
Claims (3)
1. Electrically conductive female subassembly welding electrode structure of arranging, its characterized in that: the electrode assembly comprises an upper electrode assembly and a lower electrode assembly arranged below the upper electrode assembly, wherein the lower electrode assembly comprises a fixed side electrode group and a movable side electrode group which are arranged in an opposite way, and the fixed side electrode group and the movable side electrode group are both arranged on the base;
the fixed side electrode group is provided with a fixed side electrode seat which is arranged in an L shape, the upper end of the fixed side electrode seat is provided with a fixed lower electrode, the surface of the upper end of the fixed side electrode seat is provided with a moving contact positioning component, and the upper surface of the right end of the fixed side electrode seat is provided with a bottom conducting seat;
the movable side electrode group is provided with a side pressure oil cylinder mounting seat, a movable side electrode guide assembly arranged on the right end of the base is arranged in the side pressure oil cylinder mounting seat, a side pressure oil cylinder or a gas-liquid boosting cylinder is arranged on the outer side of the side pressure oil cylinder mounting seat, a movable side electrode seat is arranged on the movable side electrode guide assembly, a movable lower electrode is arranged on the left side of the movable side electrode seat, the fixed lower electrode and the movable lower electrode are combined together to form a lower electrode welding fixture for clamping the conductive bus seat, and the shape of the lower electrode welding fixture is matched with the shapes of the two outer side walls of the conductive bus seat;
the upper electrode assembly consists of an upper electrode seat, an upper electrode and a clamping block, wherein the clamping block is arranged below the upper electrode seat, and the upper electrode is arranged in the clamping block.
2. The welding electrode structure of the conductive busbar assembly according to claim 1, wherein: the welding electrode structure of the conductive busbar assembly is also provided with an external water spraying mechanism.
3. The welding electrode structure of the conductive busbar assembly according to claim 1, wherein: and the conductive connecting copper strip and the fixed side electrode holder are jointly connected to the same electrode of the welding transformer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021237917.0U CN212599605U (en) | 2020-06-30 | 2020-06-30 | Welding electrode structure of conductive busbar assembly |
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| CN202021237917.0U CN212599605U (en) | 2020-06-30 | 2020-06-30 | Welding electrode structure of conductive busbar assembly |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618408A (en) * | 2020-06-30 | 2020-09-04 | 广州亨龙智能装备股份有限公司 | Intermediate-frequency resistance diffusion welding process for conductive busbar of frame circuit breaker |
| CN114367779A (en) * | 2022-01-11 | 2022-04-19 | 浙江百宸电气有限公司 | Positioning device for welding intelligent universal circuit breaker contact system assembly |
-
2020
- 2020-06-30 CN CN202021237917.0U patent/CN212599605U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111618408A (en) * | 2020-06-30 | 2020-09-04 | 广州亨龙智能装备股份有限公司 | Intermediate-frequency resistance diffusion welding process for conductive busbar of frame circuit breaker |
| CN114367779A (en) * | 2022-01-11 | 2022-04-19 | 浙江百宸电气有限公司 | Positioning device for welding intelligent universal circuit breaker contact system assembly |
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