CN219026281U - Large-specification flexible-connection resistance welding upper electrode of frame circuit breaker - Google Patents
Large-specification flexible-connection resistance welding upper electrode of frame circuit breaker Download PDFInfo
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- CN219026281U CN219026281U CN202223262208.XU CN202223262208U CN219026281U CN 219026281 U CN219026281 U CN 219026281U CN 202223262208 U CN202223262208 U CN 202223262208U CN 219026281 U CN219026281 U CN 219026281U
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Abstract
A large-size flexible-connection resistance welding upper electrode of a frame circuit breaker comprises an electrode base, an electrode inclined surface fastening block, an electrode right-angle fastening block and an electrode head, wherein a connecting part for connecting with welding equipment is arranged on the motor base; the electrode base is internally provided with a water-through structure, the water-through structure comprises a first water channel and a second water channel which are not communicated with each other on the same straight line, the first water channel and the second water channel are respectively communicated with the top surface of the electrode base through a first water outlet and a second water outlet, the distance between the first water outlet and the second water outlet is larger than the width of an electrode head, and the first water outlet and the second water outlet are communicated with the side surface of the electrode base through a third water channel; the welding quality is good, and the whole electrode can be used for a long time except the electrode tip, and the electrode tip of the vulnerable part can be replaced in a very short time, so that the welding efficiency is indirectly improved.
Description
Technical Field
The utility model relates to a large-size flexible-connection resistance welding upper electrode of a frame circuit breaker, and belongs to the field of circuit breakers.
Background
A circuit breaker refers to a switching device capable of closing, carrying and opening a current under normal circuit conditions and closing, carrying and opening a current under abnormal circuit conditions within a prescribed time. The frame circuit breaker belongs to a large-specification and large-current circuit breaker, and the current carried by the frame circuit breaker is generally hundreds to thousands of amperes, and the quality requirement is more strict than that of a common circuit breaker.
The flexible connection is a part of a moving contact assembly which belongs to a core part of the frame circuit breaker; the soft connection is usually formed by welding a single braided wire or soft stranded wire with a large section or two or three soft stranded wires side by side through pressure welding according to a certain length and then cutting the soft connection according to the current level, wherein the welding function is to prevent the soft connection from being scattered when cutting off and to be used as a connection part when secondary welding.
The secondary welding of the welding is the connection of the flexible connection and the movable contact, the part formed by connection is called a movable contact, and as the flexible connection and the movable contact are made of red copper, and the two are large in specification, the welding flux needs to be melted during welding, the required welding heat is large, the welding current is generally 17KA-35KA, the welding time can reach several seconds, the requirements on the electrode, particularly the movable upper electrode, are extremely high, the electrode tip is used as a part which mainly heats in the resistance welding process, and molybdenum steel or copper tungsten 90 is generally selected; however, when the electrode tip is welded with such a large amount of heat, the electrode tip is in a red-colored state for a long time, the life of the electrode tip is inevitably greatly shortened, and even a single flexible connecting wire with minimum welding requirements must be replaced when welding up to hundreds of electrode tips continuously.
The conventional electrode manufacturing method has two methods, one method is that the whole electrode is in a round table shape, one end of a non-welding surface is provided with a water through hole, the whole electrode is made of molybdenum steel or copper-tungsten 90 material, the other method is similar to the first method, only one end of the water through hole is made of red copper or chromium-zirconium-copper, one end of a welding surface is unchanged, the two ends are connected together through welding, the processing is slightly complicated, the electrode has the advantages that the heat dissipation is slightly better, the two electrodes are mechanically connected with welding equipment through a taper structure, but the electrode needs to be replaced frequently due to the unavoidable short service life of the electrode caused by soft connection welding, the replacement of the upper electrode is troublesome, time and labor are wasted, and after the replacement is repeated, under the action of high heat and pressure of welding, parts (for increasing the conductivity, the general material is red copper) connected with the welding equipment are propped up to deform, so that water leakage and poor conductivity are caused, and the welding is affected; in this case, an upper electrode structure which is easy to replace quickly and economical is particularly important for soft connection welding of the frame circuit breaker.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings of the prior art and provides a large-size flexible-connection resistance welding upper electrode of a frame circuit breaker.
The large-size flexible-connection resistance welding upper electrode of the frame circuit breaker comprises an electrode base, an electrode inclined surface fastening block, an electrode right-angle fastening block and an electrode head, wherein a connecting part for connecting with welding equipment is arranged on the motor base; the electrode base is internally provided with a water-through structure, the water-through structure comprises a first water channel and a second water channel which are not communicated with each other on the same straight line, the first water channel and the second water channel are respectively communicated with the top surface of the electrode base through a first water outlet and a second water outlet, the distance between the first water outlet and the second water outlet is larger than the width of the electrode head, and the first water outlet and the second water outlet are communicated with the side surface of the electrode base through a third water channel.
Preferably, the connecting portion has a cylindrical shape, a rectangular shape or a trapezoid shape.
Preferably, a first blind hole and a second blind hole are arranged on one side of the first water outlet and one side of the second water outlet in parallel, a first through hole and a second through hole are arranged on the electrode inclined plane fastening block, and the first through hole and the second through hole are respectively connected with the first blind hole and the second blind hole through bolts.
Preferably, the diameters of the first through hole and the second through hole are 1-2mm larger than those of the first blind hole and the second blind hole.
Further, the top of the electrode base is provided with a clamping groove, the inner wall of one side of the clamping groove is a first inclined plane which is obliquely arranged, the outer wall of one side of the electrode inclined plane fastening block is a second inclined plane which is matched with the first inclined plane in inclination, and the first inclined plane and the second inclined plane are abutted when the electrode inclined plane fastening block is fixedly connected with the electrode base.
Further, the outer wall of one side of the electrode head is a third inclined surface, the outer wall of the other side of the electrode inclined surface fastening block is a fourth inclined surface matched with the third inclined surface in inclination, and the third inclined surface and the fourth inclined surface are abutted when the electrode inclined surface fastening block is fixedly connected with the electrode head.
Preferably, a third blind hole and a fourth blind hole are arranged on the other side of the first water outlet and the second water outlet in parallel, a third through hole and a fourth through hole are arranged on the electrode right-angle fastening block, and the third through hole and the fourth through hole are respectively connected with the third blind hole and the fourth blind hole through bolts.
Further, a cutting groove is formed in the side wall of the electrode right-angle fastening block, and the electrode head is abutted with the cutting groove; the length of the cutting groove is greater than 0.5mm of the electrode head.
Furthermore, the electrode base, the electrode inclined surface fastening block and the electrode right angle fastening block are made of chromium-zirconium-copper materials.
Further, the electrode head is made of copper tungsten 90 or molybdenum steel.
The beneficial effects of the utility model are as follows: the upper electrode can not be supported to deform during processing by utilizing the water-through structure, so that water leakage is caused, the structure is simple, the component parts are fewer, the processing is easy, the processing steps are simple, all parts can be processed by only machining a single working procedure, when the electrode tip fails during welding, the electrode tip can be quickly replaced, the corresponding debugging time after electrode tip replacement is greatly shortened due to high consistency of the electrode tip, the welding efficiency is indirectly and greatly improved, in addition, when the electrode fails, only the electrode tip needs to be replaced, and the electrode consumption cost can be effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.
FIG. 1 is a perspective view of an upper electrode welding example;
FIG. 2 is a front view of an electrode base;
FIG. 3 is a cross-sectional view of B-B in FIG. 2;
FIG. 4 is a top view of an electrode base;
FIG. 5 is a front view of an electrode bevel fastening block;
FIG. 6 is a top view of an electrode bevel fastening block;
FIG. 7 is a perspective view of an electrode bevel fastening block;
FIG. 8 is a front view of an electrode right angle fastening block;
fig. 9 is a front view of the electrode head;
in the figure, 1, soft connection; 2. an electrode base; 201. a first inclined surface; 202. a clamping groove; 2051. a first waterway; 2052. a second waterway; 2021. a first water outlet; 2022. a second water outlet; 2032. a first blind hole; 2034. a second blind hole; 2031. a third blind hole; 2033. a fourth blind hole; 204. a third waterway; 206. a connection part; 3. an electrode bevel fastening block; 3031. a first through hole; 3032. a second through hole; 301. a second inclined surface; 302. a fourth inclined surface; 4. an electrode right-angle fastening block; 4011. a third through hole; 4012. a fourth through hole; 402. cutting the groove; 5. an electrode head; 501. and a third inclined plane.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.
The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.
1-9, an embodiment of a resistance welding upper electrode of a large-size flexible connection 1 of a frame circuit breaker of the utility model comprises an electrode base 2, an electrode inclined surface fastening block 3, an electrode right-angle fastening block 4 and an electrode head 5, wherein a connecting part 206 for connecting with welding equipment is arranged on the motor base; the electrode base 2 is internally provided with a water-through structure, the water-through structure comprises a first water channel 2051 and a second water channel 2052 which are not communicated with each other on the same straight line, as a connecting water inlet pipe and a water outlet pipe, the first water channel 2051 and the second water channel 2052 are respectively communicated with the top surface of the electrode base 2 through the first water outlet 2021 and the second water outlet 2022, the distance between the first water outlet 2021 and the second water outlet 2022 is larger than the width of the electrode head 5, the purpose is to ensure that the contact surface of the electrode head 5 and the electrode base 2 is completely contacted, water plugs are externally mounted after the connection, the first water outlet 2021 and the second water outlet 2022 are communicated with the side surface of the electrode base 2 through the third water channel 204, and water plugs are externally mounted after the connection, so that the water-through structure in the whole electrode base is formed, the water-through structure can quickly cool the upper electrode after welding, reduce deformation generated by the upper electrode, prevent water leakage and prolong the service life.
The connection portion 206 has a cylindrical, rectangular or trapezoidal shape, and may be adjusted to other shapes according to the actual conditions of the welding apparatus.
The first water outlet 2021 and the second water outlet 2022 are provided with a first blind hole 2032 and a second blind hole 2034 in parallel on one side, the electrode inclined surface fastening block 3 is provided with a first through hole 3031 and a second through hole 3032, the first through hole 3031 and the second through hole 3032 are respectively connected with the first blind hole 2032 and the second blind hole 2034 through bolts, when the electrode tip 5 is in welding failure, the spare parts can be replaced quickly only by loosening the bolts of the electrode inclined surface fastening block 3, and the welding efficiency is indirectly improved.
The diameters of the first through hole 3031 and the second through hole 3032 are larger than those of the first blind hole 2032 and the second blind hole 20341-2mm, so that the electrode inclined surface fastening block 33 can be finely adjusted by itself along the direction of the inclined surface structure under the fastening of the bolt, the electrode head 5 of the welding heating main body can be firmly fixed on the electrode base 2 in a surface contact mode, and the heating uniformity and stability during welding are further ensured.
The top of the electrode base 2 is provided with a clamping groove 202, the inner wall of one side of the clamping groove 202 is a first inclined plane 201 which is obliquely arranged, the outer wall of one side of the electrode inclined plane fastening block 3 is a second inclined plane 301 which is matched with the inclination of the first inclined plane 201, the first inclined plane 201 and the second inclined plane 301 are abutted when the electrode inclined plane fastening block 3 is fixedly connected with the electrode base 2, and compared with a simple right-angle structure, the inclined plane structure can ensure the compactness of the part during mechanical connection.
The outer wall of one side of the electrode head 5 is a third inclined surface 501, the outer wall of the other side of the electrode inclined surface fastening block 3 is a fourth inclined surface 302 which is matched with the third inclined surface 501 in inclination, and the third inclined surface 501 and the fourth inclined surface 302 are abutted when the electrode inclined surface fastening block 3 is fixedly connected with the electrode head 5.
The other side of the first water outlet 2021 and the second water outlet 2022 is provided with a third blind hole 2031 and a fourth blind hole 2033 in parallel, the electrode right-angle fastening block 4 is provided with a third through hole 4011 and a fourth through hole 4012, and the third through hole 4011 and the fourth through hole 4012 are respectively connected with the third blind hole 2031 and the fourth blind hole 2033 through bolts.
1-9, an embodiment of a resistance welding upper electrode of a large-size flexible connection 1 of a frame circuit breaker of the utility model comprises an electrode base 2, an electrode inclined surface fastening block 3, an electrode right-angle fastening block 4 and an electrode head 5, wherein a connecting part 206 for connecting with welding equipment is arranged on the motor base; the electrode base 2 is internally provided with a water-through structure, the water-through structure comprises a first water channel 2051 and a second water channel 2052 which are not communicated on the same straight line, as a connecting water inlet pipe and a water outlet pipe, the first water channel 2051 and the second water channel 2052 are respectively communicated with the top surface of the electrode base 2 through a first water outlet 2021 and a second water outlet 2022, the distance between the first water outlet 2021 and the second water outlet 2022 is larger than the width of the electrode head 5, the purpose is to ensure that the contact surface of the electrode head 5 and the electrode base 2 is completely contacted, water plugs are externally mounted after the electrode head 5 and the electrode base 2 are communicated, and water plugs are externally mounted after the electrode base 2 is communicated, so that the water-through structure in the whole electrode base is formed, and the electrode can be quickly cooled after welding, and the service life is prolonged.
This embodiment differs from the above embodiment in that, referring to fig. 1-9, a cut-out groove 402 is provided on the side wall of the right-angle electrode fastening block 4, and the electrode tip 5 abuts against the cut-out groove 402; the length of the cutting groove 402 is greater than 0.5mm of the electrode tip, and the purpose of the structure is to ensure that the electrode tip 5 does not move back and forth, and is at the same position when being installed each time, so that the consistency of welding positions is enhanced.
The electrode base 2, the electrode inclined surface fastening block 3 and the electrode right angle fastening block 4 are made of chromium-zirconium-copper materials, so that compared with red copper, the hardness of the upper electrode can be greatly improved under the condition of reducing the conductivity of the materials by a small extent, and the upper electrode is prevented from being rapidly softened and deformed under the action of high pressure and high current during continuous welding, so that failure is avoided.
The electrode tip 5 is made of copper tungsten 90 or molybdenum steel, so that enough heat input is ensured during welding, and the welding flux of the soft connection 1 is melted, so that better welding quality is obtained.
The utility model can be used for soft connection, and other large-sized flat plate parts can be welded.
The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.
While the utility model has been described with reference to several particular embodiments, it should be understood that the utility model is not limited to the particular embodiments disclosed. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (10)
1. A frame circuit breaker large-scale flexible-connection resistance welding upper electrode is characterized in that: the welding device comprises an electrode base, an electrode inclined surface fastening block, an electrode right-angle fastening block and an electrode head, wherein a connecting part used for being connected with welding equipment is arranged on the electrode base; the electrode base is internally provided with a water-through structure, the water-through structure comprises a first water channel and a second water channel which are not communicated with each other on the same straight line, the first water channel and the second water channel are respectively communicated with the top surface of the electrode base through a first water outlet and a second water outlet, the distance between the first water outlet and the second water outlet is larger than the width of the electrode head, and the first water outlet and the second water outlet are communicated with the side surface of the electrode base through a third water channel.
2. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the connecting part is cylindrical, rectangular or trapezoidal.
3. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the electrode inclined surface fastening block is provided with a first through hole and a second through hole, and the first through hole and the second through hole are respectively connected with the first blind hole and the second blind hole through bolts.
4. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 3 wherein: the diameters of the first through hole and the second through hole are 1-2mm larger than those of the first blind hole and the second blind hole.
5. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the top of the electrode base is provided with a clamping groove, the inner wall of one side of the clamping groove is a first inclined plane which is obliquely arranged, the outer wall of one side of the electrode inclined plane fastening block is a second inclined plane which is matched with the first inclined plane in inclination, and the first inclined plane and the second inclined plane are abutted when the electrode inclined plane fastening block is fixedly connected with the electrode base.
6. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 5 wherein: the outer wall of one side of the electrode head is a third inclined surface, the outer wall of the other side of the electrode inclined surface fastening block is a fourth inclined surface matched with the third inclined surface in inclination, and the third inclined surface and the fourth inclined surface are abutted when the electrode inclined surface fastening block is fixedly connected with the electrode head.
7. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the electrode right-angle fastening block is provided with a third through hole and a fourth through hole, and the third through hole and the fourth through hole are respectively connected with the third blind hole and the fourth blind hole through bolts.
8. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the side wall of the electrode right-angle fastening block is provided with a cutting groove, and the electrode head is abutted with the cutting groove; the length of the cutting groove is greater than 0.5mm of the electrode head.
9. The frame circuit breaker large format soft connect resistance welded upper electrode of claim 1, wherein: the electrode base, the electrode inclined surface fastening block and the electrode right angle fastening block are made of chromium-zirconium-copper materials.
10. The frame circuit breaker large format soft connect resistance welded upper electrode of any one of claims 1 or 8, wherein: the electrode tip is made of copper tungsten 90 or molybdenum steel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223262208.XU CN219026281U (en) | 2022-12-06 | 2022-12-06 | Large-specification flexible-connection resistance welding upper electrode of frame circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223262208.XU CN219026281U (en) | 2022-12-06 | 2022-12-06 | Large-specification flexible-connection resistance welding upper electrode of frame circuit breaker |
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| CN219026281U true CN219026281U (en) | 2023-05-16 |
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| CN202223262208.XU Active CN219026281U (en) | 2022-12-06 | 2022-12-06 | Large-specification flexible-connection resistance welding upper electrode of frame circuit breaker |
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| CN (1) | CN219026281U (en) |
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- 2022-12-06 CN CN202223262208.XU patent/CN219026281U/en active Active
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