CN214755398U - Copper-aluminum alloy combined bus connector - Google Patents
Copper-aluminum alloy combined bus connector Download PDFInfo
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- CN214755398U CN214755398U CN202121113307.4U CN202121113307U CN214755398U CN 214755398 U CN214755398 U CN 214755398U CN 202121113307 U CN202121113307 U CN 202121113307U CN 214755398 U CN214755398 U CN 214755398U
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Abstract
The utility model discloses a copper aluminum alloy combination bus connector for be connected between the first bus duct of two adjacent butt joints and the second bus duct, include: the front connecting side plate and the rear connecting side plate are used for connecting and fixing the front side end and the rear side end of the first bus duct and the second bus duct; at least one group of insulating connecting pieces are arranged on the side surface close to a joint bus bar, which is formed by mutually butting the first bus duct and the second bus duct, of the first bus duct and the second bus duct, each insulating connecting piece comprises an insulating partition plate and two conductor connecting pieces, and the two conductor connecting pieces are symmetrically distributed on the two sides of the insulating partition plate respectively; at least one group of bolt assemblies which sequentially penetrate through all the insulating connecting pieces and are used for conducting after the side faces of the joint busbars which are mutually butted are locked and attached are connected between the front connecting side plate and the rear connecting side plate; the overcurrent capacity of the connector is improved through the conductor connecting sheet, the effective conductive connection between the surface of the conductor connecting sheet and the surface of the joint busbar is realized, and the connector has the advantages of simple structure, high strength and good joint stability.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electric energy transport connection technology especially relates to a copper-aluminum alloy combination bus connector.
[ background of the invention ]
The bus duct is in the field of power transmission lines and is a substitute product of a power cable; the bus duct is a closed metal device composed of copper and aluminum bus posts and used for distributing large power for each element of a decentralized system, and the bus duct system is a power distribution device for efficiently transmitting current, and the bus duct system is used for increasingly replacing electric wires and cables in indoor low-voltage power transmission main line engineering projects. Nowadays, the wiring system is indispensable for electrical equipment and power systems in high-rise buildings, factories, and the like, and the demand tends to increase year by year. When installing, maintaining or changing distribution system simultaneously, there are a lot of difficult problems in configuration distribution lines, if adopt the bus duct, can make distribution system installation maintenance convenient and fast, improve work efficiency by a wide margin to can make the building power consumption factor of safety effectively promote.
The connector of the bus duct is the connection between the bus duct body unit and the unit, and is called as the connector. Most of the existing copper-aluminum alloy combined bus connectors are provided with copper conductor connectors or aluminum conductor connectors, the copper connectors can only be used for copper conductor bus ducts, and the aluminum conductor connectors can only be used for aluminum conductor bus ducts. The copper conductor bus duct has high manufacturing cost, the copper resource is deficient in China, the aluminum conductor bus duct has low manufacturing cost, but the aluminum conductor bus is easy to oxidize, and if the main body bus duct is directly connected with the aluminum conductor connector, the strength and the joint stability are easy to cause poor. If the copper conductor connector is directly connected with the aluminum conductor bus duct, galvanic corrosion can be generated, so that the aluminum conductor bus duct project is rarely used, the copper price rises, the manufacturing cost is increased for the national modernization construction, and the construction is influenced.
[ Utility model ] content
The utility model provides a cover through conductor connection piece or copper aluminium alloy and close piece improvement connector's ability to overflow, increase the electrically conductive transition structure of female arranging of joint and other lamellar bodies, have simple structure, intensity height and connect the good copper aluminium alloy combination bus connector of stability.
The utility model adopts the technical proposal that:
the utility model provides a copper aluminum alloy combination bus connector for connect female connection of arranging between two adjacent first bus ducts and the second bus duct of butt joint, include:
the front connecting side plate and the rear connecting side plate are used for sealing the front side and the rear side of the joint busbar and connecting and fixing the front side end and the rear side end of the first bus duct and the second bus duct;
the insulation connecting piece comprises an insulation partition plate and two conductor connecting pieces, the insulation partition plate is used for insulating and isolating the adjacent joint busbars, and the two conductor connecting pieces are symmetrically distributed on two sides of the insulation partition plate respectively and used for conducting and connecting the aluminum joint busbars butted with each other on each side;
grooves which are matched with the conductor connecting sheets overlapped and attached to each side in a nested manner are respectively arranged on two sides of the insulating partition plate, and the thickness of each conductor connecting sheet is larger than the depth of each groove;
the inner side surface of the front connecting side plate and the inner side surface of the rear connecting side plate are directly attached and connected with the insulating partition plate;
and at least one group of bolt assemblies which are sequentially sleeved with all the insulating connecting pieces and are used for conducting after the locking and laminating of the side surfaces of the joint busbars butted with each other are connected between the front connecting side plate and the rear connecting side plate.
Furthermore, the conductor connecting sheets on two sides of the insulating partition board on the insulating connecting piece are copper connecting sheets, the outer surface of the aluminum joint busbar, which is mutually butted with the first bus duct and the second bus duct, is sequentially plated with a copper metal layer and a nickel metal layer which are overlapped from inside to outside in a layered manner, and the surface of the conductor connecting sheet adopting the copper connecting sheets is plated with a nickel metal layer which is the same as the nickel metal layer on the outer surface of the aluminum joint busbar.
Furthermore, the insulating connecting piece also comprises two copper-aluminum alloy clad sheets, the two conductor connecting sheets are copper connecting sheets, and the two copper connecting sheets and the two copper-aluminum alloy clad sheets are respectively and symmetrically distributed on two sides of the insulating partition plate and are used for conducting connection of aluminum joint busbars butted with each other on each side;
the copper-aluminum alloy lamination sheet is positioned on the outer side of the copper connecting sheet, grooves which are matched with the copper-aluminum alloy lamination sheet and the copper connecting sheet which are overlapped and attached on each side in a nested mode are respectively arranged on two sides of the insulating partition board, and the thicknesses of the copper-aluminum alloy lamination sheet and the copper connecting sheet which are overlapped and attached are larger than the depth of the grooves.
Furthermore, the copper-aluminum alloy clad sheet adopts a double-layer structure of copper-aluminum alloy cladding, an aluminum alloy layer on the outer side of the copper-aluminum alloy clad sheet is directly attached to and contacted with the side surface of the aluminum-adopted joint bus bar, and a copper alloy layer on the inner side of the copper-aluminum alloy clad sheet is directly attached to and contacted with the surface of the copper connecting sheet.
Further, the edge is still provided with respectively about the copper connection piece and is circular-arc chamfer, and the edge forms, both sides laminate the circular-arc turn-ups of the circular-arc chamfer of the edge about the copper connection piece to the book of inside wall rounding off respectively about the copper aluminum alloy composite piece, the circular-arc turn-ups of the edge about the copper aluminum alloy composite piece with the circular-arc chamfer on the both sides forms the female row of joint of being convenient for butt joint each other about the copper connection piece, inserts easily between two copper aluminum alloy composite pieces and prevents to support the circular-arc chamfer structure that pushes up copper aluminum alloy composite piece terminal surface department and be convenient for the field installation.
Furthermore, at least one pair of male die bulges and female die grooves for the mutual buckling, matching and connection of the copper connecting sheet and the copper-aluminum alloy clad sheet are respectively arranged between the copper connecting sheet and the copper-aluminum alloy clad sheet, and the thickness of the male die bulges formed by combining the copper connecting sheet and the copper-aluminum alloy clad sheet is the same as that of the two adjacent butt joint busbar conductors.
Furthermore, the elastic sealing strips which are vertically arranged and are in sealing fit with the front and rear side ends of the first bus duct and the second bus duct are respectively nested on two sides of the inner side surfaces of the front connecting side plate and the rear connecting side plate.
Furthermore, step grooves matched with the elastic sealing strips and dovetail grooves matched with strip insertion strips extending outwards and protruding from the rear side of the elastic sealing strips are respectively formed in two sides of the inner side surfaces of the front connecting side plate and the rear connecting side plate.
Further, the bolt assembly comprises a torque bolt, two disc spring steel pads and a square nut, the two disc spring steel pads are respectively sleeved at two ends of the torque bolt, the outer side surfaces of the corresponding front connecting side plate and the rear connecting side plate are outwards integrally protruded to form a dovetail-shaped clamping groove matched with the disc spring steel pad in a buckling mode, the torque bolt sequentially penetrates through the disc spring steel pads on one side, the front connecting side plate, the multiple groups of insulating connecting pieces, the rear connecting side plate and the disc spring steel pads on the other side, and the copper connecting piece and the copper-aluminum alloy clad sheet are connected with the busbar connected with the same side in a mutual butt joint mode through the square nut in a threaded connection mode and the multiple groups of insulating connecting pieces between the front connecting side plate and the rear connecting side plate in a locking mode.
Furthermore, through holes for the penetration of the torque bolt are respectively formed on the insulating partition plate, the copper connecting sheet and the copper-aluminum alloy clad sheet in the insulating connecting piece.
The beneficial effects are that:
the utility model discloses in, the female row of aluminium matter joint through first bus duct and the mutual butt joint of second bus duct closes on and sets up insulating connecting piece between the side, this insulating connecting piece includes insulating baffle and two conductor connection pieces, the conductor connection piece is the copper connection piece, the female surface of the aluminium matter joint of first bus duct and the mutual butt joint of second bus duct is electroplated with copper metal level and nickel metal layer from interior to exterior superimposed in proper order in the stratiform, the surface of the conductor connection piece that adopts the copper connection piece is electroplated with the nickel metal layer of the female surface nickel metal layer homogeneity of arranging with the aluminium matter joint, thus, just can realize the female butt joint in-process of aluminium matter joint, adopt nickel metal layer alloy face and the nickel metal layer alloy face lug connection who arranges the surface with the mother in the conductor connection piece, effectively improve the overcurrent capacity of connector, and has simple structure, intensity is high and the good effect of joint stability.
In addition, the insulating connecting piece can also adopt another structural mode, the insulating connecting piece comprises an insulating partition plate, two conductor connecting pieces and two copper-aluminum alloy clad sheets, the two conductor connecting pieces are copper connecting pieces, and the two copper connecting pieces and the two copper-aluminum alloy clad sheets are respectively and symmetrically distributed on two sides of the insulating partition plate and are used for conducting connection of mutually butted aluminum joint bus bars on each side; the copper-aluminum alloy clad sheet adopts a double-layer structure of laminated copper and aluminum, and the copper-aluminum alloy clad sheet added on each copper connecting sheet in a laminated manner is used as a transition structure of copper and an alloy conductor, so that the direct connection of copper and copper surfaces and alloy surfaces is realized, the overcurrent capacity of the connector is also improved, and the connector has the characteristics of simple structure, high strength and good joint stability.
And the male die bulge and the female die groove which are used for mutually embedding, buckling, matching and connecting the conductor connecting sheet or the conductor connecting sheet and the copper-aluminum alloy clad sheet are respectively punched between the mutually connected binding surfaces of the conductor connecting sheet or the conductor connecting sheet and the copper-aluminum alloy clad sheet, the thickness of the male die bulge punched after the conductor connecting sheet or the conductor connecting sheet and the copper-aluminum alloy clad sheet are combined is the same as that of two adjacent and butted joint busbar conductors, so that the conductor connecting sheet or the copper-aluminum alloy clad sheet is not easy to move and separate, when the torque bolt is locked, the left copper connecting sheet and the right copper connecting sheet are stressed through the male die bulge, the gap is always consistent with the thickness of the joint busbar alloy conductor, because the copper connecting sheet has high hardness, the male die bulge has high supporting strength, even if the torque bolt works for a long time under the two conditions of stress and electrification and heating, the alloy aluminum conductor of the joint busbar still cannot be threatened by deformation, therefore, the occurrence of the accident that the conductor gap between the copper connecting sheet and the joint busbar is enlarged and the current is too high and generates heat is not easy to cause, and the reliability of connection between the bus duct bodies is greatly improved.
[ description of the drawings ]
Fig. 1 is a schematic diagram of an explosion structure according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of the portion A of FIG. 1;
FIG. 3 is an enlarged view of the exploded view of a single insulated connector according to one embodiment of the present invention;
FIG. 4 is an enlarged view of a partial cross-sectional structure of a copper-aluminum alloy clad sheet according to an embodiment of the present invention;
fig. 5 is an exploded view of the second embodiment of the present invention;
fig. 6 is an enlarged view of the explosion structure of a single insulated connector in the second embodiment of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the drawings of the embodiments of the present invention, examples of which are shown in the drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Example one
A copper-aluminum alloy combined bus connector is used for connecting an aluminum joint busbar 3 between a first bus duct 1 and a second bus duct 2 which are adjacently butted, and comprises a front connecting side plate 4 and a rear connecting side plate 5, wherein the front connecting side plate 4 and the rear connecting side plate 5 are used for sealing covers on the front side and the rear side of the joint busbar 3 and connecting and fixing the front side end and the rear side end of the first bus duct 1 and the second bus duct 2; five groups of insulating connecting pieces 6 for conducting connection between the butted joint bus bars 3 and insulating isolation between the adjacent joint bus bars 3 are arranged on the side surfaces, close to the joint bus bars 3, of the first bus duct 1 and the second bus duct 2, wherein the joint bus bars 3 are butted with each other, the insulating connecting pieces 6 comprise insulating partition plates 60, two copper connecting sheets 61 and two copper-aluminum alloy covering sheets 62, the insulating partition plates 60 are used for conducting isolation between the adjacent joint bus bars 3, and the two copper connecting sheets 61 and the two copper-aluminum alloy covering sheets 62 are respectively and symmetrically distributed on the two sides of the insulating partition plates 60 and are used for conducting connection of the aluminum joint bus bars 3 butted with each other on each side; the copper-aluminum alloy clad sheet 62 is located at the outer side of the copper connecting sheet 61, the two sides of the insulating partition plate 60 are respectively provided with a groove 600 which is matched with the copper-aluminum alloy clad sheet 62 and the copper connecting sheet 61 which are superposed and attached to each side in a nested manner, and the thicknesses of the copper-aluminum alloy clad sheet 62 and the copper connecting sheet 61 which are superposed and attached are greater than the depth of the groove 600. Moreover, the inner side surface of the front connecting side plate 4 and the inner side surface of the rear connecting side plate 5 are directly attached and connected with the insulating partition plate 60; meanwhile, three groups of bolt assemblies 7 which are sequentially sleeved with all the insulating connecting pieces 6 and are communicated after the side faces of the joint busbars 3 which are butted with each other are locked and attached are connected between the front connecting side plate 4 and the rear connecting side plate 5.
As shown in fig. 1 and 2, vertically arranged elastic sealing strips 8 which are hermetically matched with the front and rear end portions of the first bus duct 1 and the second bus duct 2 are respectively nested on two sides of the inner side surfaces of the front connecting side plate 4 and the rear connecting side plate 5, and stepped grooves 9 matched with the elastic sealing strips 8 and dovetail grooves 10 matched with strip-shaped insertion strips 80 which extend outwards and protrude from the rear side of the elastic sealing strips 8 are respectively arranged on two sides of the inner side surfaces of the front connecting side plate 4 and the rear connecting side plate 5.
Continuing as shown in fig. 1 and 2, the bolt assembly 7 includes a torque bolt 70, two belleville spring steel pads 71 and a square nut 72, the two belleville spring steel pads 71 are respectively sleeved at two ends of the torque bolt 70, the outer side surfaces of the corresponding front connecting side plate 4 and the corresponding rear connecting side plate 5 are integrally protruded outwards to form a dovetail-shaped slot 11 which is in snap fit with the belleville spring steel pads 71, the torque bolt 70 sequentially passes through the belleville spring steel pads 71, the front connecting side plate 4, the multiple sets of insulating connecting pieces 6, the rear connecting side plate 5 and the belleville spring steel pads 71 on the other side, the torque bolt 70 is connected to the end of the torque bolt 70 through the square nut 72 in a threaded manner and locks the multiple sets of insulating connecting pieces 6 between the front connecting side plate 4 and the rear connecting side plate 5 to realize the conductive connection of the copper connecting piece 61 and the copper-aluminum alloy clad piece 62 to the joint busbar 3 which are butted with the same side, and the insulating partition board 60 in the corresponding insulating connecting piece 6 is provided with the same side, And the copper connecting sheet 61 and the copper-aluminum alloy covering sheet 62 are respectively provided with a through hole 11a for the penetration of the torque bolt 70.
An insulating connecting piece 6 is arranged between the adjacent side faces of the aluminum joint busbar 3 which is mutually butted with the first bus duct 1 and the second bus duct 2, as shown in figure 4, the copper-aluminum alloy laminating sheet 62 on the insulating connecting piece 6 adopts a double-layer structure of copper 620 and aluminum 621 laminated, the copper-aluminum alloy laminating sheet 62 laminated and added on each copper connecting sheet 61 is adopted as a structure for transition of copper and alloy conductors, direct connection of copper and copper surfaces and alloy surfaces is realized, and the structure is simple, the strength is high, the joint stability is good, and the overcurrent capacity of the connector is improved.
As shown in fig. 3, the left and right side edges of the copper connecting sheet 61 are further provided with arc-shaped chamfers 610 with respective edges, the left and right side edges of the corresponding copper-aluminum alloy covering sheet 62 are respectively folded and rolled over smoothly toward the inner side wall to form arc-shaped flanges 620 with respective sides being attached to the arc-shaped chamfers of the left and right side edges of the copper connecting sheet, the arc-shaped flanges 620 of the left and right side edges of the copper-aluminum alloy covering sheet 62 and the arc-shaped chamfers 610 of the left and right sides of the copper connecting sheet 61 form a joint busbar convenient for mutual butt joint, and the arc-shaped chamfers are easily inserted between the two copper-aluminum alloy covering sheets 62 to prevent abutting against the end faces of the copper-aluminum alloy covering sheet 62 and are convenient for field installation. In addition, three pairs of male die bulges 12 and female die grooves 13 which are used for mutually embedding, buckling, matching and connecting the copper connecting sheet 61 and the copper-aluminum alloy covering sheet 62 are respectively arranged between the mutually connected binding surfaces of the copper connecting sheet 61 and the copper-aluminum alloy covering sheet 62, and the thickness of the male die bulges 12 formed by combining the copper connecting sheet 61 and the copper-aluminum alloy covering sheet 62 is the same as that of the conductors of two adjacent butt joint bus bars 3; therefore, the copper connecting sheet 61 and the copper-aluminum alloy covering sheet 62 are not easy to move and separate, when the torque bolt 70 is locked, the left copper connecting sheet 61 and the right copper connecting sheet 61 are stressed through the male die bulge 12, the gap is always consistent with the thickness of the alloy conductor of the joint busbar 3, because the hardness of the copper connecting sheet 61 is high, the male die bulge 12 has high supporting strength, even if the torque bolt 70 works for a long time under the stress condition and the power-on heating condition, the alloy aluminum conductor of the joint busbar 3 still cannot be threatened by deformation, the occurrence of the accident that the conductor gap between the copper connecting sheet 61 and the joint busbar 3 is too high in current and heating is difficult to cause, and the reliability of connection between the bus duct bodies is greatly improved.
Example two
As shown in fig. 5 and fig. 6, the difference between the first embodiment and the second embodiment is that the insulating connector 6 includes an insulating spacer 60 and two conductor connecting pieces 61, where the two conductor connecting pieces 61 are both copper connecting pieces, the insulating spacer is used for insulating and isolating adjacent connector busbars from each other, and the two conductor connecting pieces 61 are respectively symmetrically distributed on two sides of the insulating spacer and are used for conducting connection between each side of the insulating spacer and each side of the insulating spacer to an aluminum connector busbar; the two sides of the insulating partition plate 60 are respectively provided with a groove 600 which is in nested fit with the conductor connecting sheet 61 superposed and attached to each side, and the thickness of the conductor connecting sheet 61 is greater than the depth of the groove 600.
Moreover, a copper metal layer (not shown) and a nickel metal layer (not shown) which are overlapped from inside to outside are sequentially plated on the outer surface of the aluminum joint busbar 3, which is in butt joint with the first bus duct 1 and the second bus duct 2, in a layered manner, and a nickel metal layer (not shown) which is the same as the nickel metal layer on the outer surface of the aluminum joint busbar 3 is plated on the surface of the conductor connecting sheet 61 adopting the copper connecting sheet. In this way, in the process of butting the aluminum joint busbar 3, the nickel metal layer alloy surface is directly connected with the nickel metal layer alloy surface on the surface of the joint busbar 3 in the conductor connecting sheet 61, so that the galvanic corrosion phenomenon caused by the direct connection of the copper conductor connector and the aluminum conductor bus duct is prevented, and the overcurrent capacity of the connector is effectively improved.
In addition, each binding surface of the copper connecting sheets of the adjacent insulating connecting pieces is also provided with three pairs of male die bulges 12, and the thickness of the male die bulges 12 of the copper connecting sheets 61 is the same as that of the conductors of the two adjacent butt joint busbar 3, so that after the torque bolt 70 is locked, the left copper connecting sheet 61 and the right copper connecting sheet 61 are stressed through the male die bulges 12, the gap is always consistent with the thickness of the alloy conductors of the joint busbar 3, and the male die bulges 12 have higher supporting strength because the copper connecting sheets 61 are high in hardness, and even if the torque bolt 70 works for a long time under the stress condition and the electrified heating condition, the alloy aluminum conductors of the joint busbar 3 still cannot be threatened by deformation, so that the occurrence of the accident that the conductor gap between the copper connecting sheets 61 and the joint busbar 3 is enlarged and the current is too high in heating is not easily caused, and the reliability of connection between the bus duct bodies is greatly improved.
In the description of the present invention, it should be noted that the terms "inside", "outside", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
The above-mentioned embodiments are only preferred embodiments of the present invention, not limiting the scope of the present invention, and all equivalent changes made by the shape, structure and principle of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The utility model provides a copper aluminum alloy combination bus connector for connect female connection of arranging between two adjacent first bus ducts and the second bus duct of butt joint, its characterized in that includes:
the front connecting side plate and the rear connecting side plate are used for sealing the front side and the rear side of the joint busbar and connecting and fixing the front side end and the rear side end of the first bus duct and the second bus duct;
the insulation connecting piece comprises an insulation partition plate and two conductor connecting pieces, the insulation partition plate is used for insulating and isolating the adjacent joint busbars, and the two conductor connecting pieces are symmetrically distributed on two sides of the insulation partition plate respectively and used for conducting and connecting the aluminum joint busbars butted with each other on each side;
grooves which are matched with the conductor connecting sheets overlapped and attached to each side in a nested manner are respectively arranged on two sides of the insulating partition plate, and the thickness of each conductor connecting sheet is larger than the depth of each groove;
the inner side surface of the front connecting side plate and the inner side surface of the rear connecting side plate are directly attached and connected with the insulating partition plate;
and at least one group of bolt assemblies which are sequentially sleeved with all the insulating connecting pieces and are used for conducting after the locking and laminating of the side surfaces of the joint busbars butted with each other are connected between the front connecting side plate and the rear connecting side plate.
2. The copper-aluminum alloy combined bus connector of claim 1, wherein: the conductor connecting pieces on two sides of the insulating partition board on the insulating connecting piece are copper connecting pieces, the outer surface of the aluminum joint busbar, which is in mutual butt joint with the first bus slot and the second bus slot, is sequentially plated with a copper metal layer and a nickel metal layer which are overlapped from inside to outside in a layered mode, and the surface of the conductor connecting piece adopting the copper connecting piece is plated with a nickel metal layer which is as same as the nickel metal layer on the outer surface of the aluminum joint busbar.
3. The copper-aluminum alloy combined bus connector of claim 1, wherein: the insulating connecting piece also comprises two copper-aluminum alloy clad sheets, the two conductor connecting sheets are copper connecting sheets, and the two copper connecting sheets and the two copper-aluminum alloy clad sheets are respectively and symmetrically distributed on two sides of the insulating partition plate and used for conducting connection of aluminum joint busbars butted with each other on each side;
the copper-aluminum alloy lamination sheet is positioned on the outer side of the copper connecting sheet, grooves which are matched with the copper-aluminum alloy lamination sheet and the copper connecting sheet which are overlapped and attached on each side in a nested mode are respectively arranged on two sides of the insulating partition board, and the thicknesses of the copper-aluminum alloy lamination sheet and the copper connecting sheet which are overlapped and attached are larger than the depth of the grooves.
4. The copper-aluminum alloy combined bus connector of claim 3, wherein: the copper-aluminum alloy clad sheet adopts a double-layer structure of copper-aluminum alloy cladding, an aluminum alloy layer on the outer side of the copper-aluminum alloy clad sheet is directly attached to and contacted with the side surface of a joint bus bar adopting aluminum, and a copper alloy layer on the inner side of the copper-aluminum alloy clad sheet is directly attached to and contacted with the surface of a copper connecting sheet.
5. The copper-aluminum alloy combined bus connector of claim 4, wherein: the side edge still is provided with the arris respectively about the copper connection piece and is circular-arc chamfer, and the side edge is turned over to the book formation of inside wall rounding off, both sides laminating in the circular-arc chamfer of side edge about the copper connection piece respectively about the copper aluminum alloy composite piece, the circular arc turn-ups of the side edge about the copper aluminum alloy composite piece with the circular-arc chamfer on both sides forms the female row of joint of being convenient for mutual butt joint, inserts easily between two copper aluminum alloy composite pieces and prevents to support copper aluminum alloy composite piece terminal surface department and the circular-arc chamfer structure of being convenient for the field installation about the copper connection piece.
6. The copper-aluminum alloy combined bus connector of claim 4, wherein: at least one pair of male die bulges and female die grooves which are used for mutually buckling, matching and connecting the copper connecting sheet and the copper-aluminum alloy laminating sheet are also arranged between the mutually connected binding surfaces of the copper connecting sheet and the copper-aluminum alloy laminating sheet respectively, and the male die bulges formed after the combination of the copper connecting sheet and the copper-aluminum alloy laminating sheet are the same as the thickness of the two adjacent butted joint busbar conductors.
7. The copper-aluminum alloy combined bus connector of claim 1, wherein: and two sides of the inner side surfaces of the front connecting side plate and the rear connecting side plate are respectively nested with vertically arranged elastic sealing strips which are in sealing fit with the front and rear side ends of the first bus duct and the second bus duct.
8. The copper-aluminum alloy combined bus connector of claim 7, wherein: and step grooves matched with the elastic sealing strips and dovetail grooves matched with strip insertion strips extending outwards and protruding from the rear side of the elastic sealing strips are respectively arranged on two sides of the inner side surfaces of the front connecting side plate and the rear connecting side plate.
9. The copper-aluminum alloy combined bus connector of claim 1, wherein: the bolt assembly comprises a torque bolt, two disc spring steel pads and a square nut, the two disc spring steel pads are respectively sleeved at two ends of the torque bolt, the outer side surfaces of the corresponding front connecting side plate and the rear connecting side plate are outwards integrally protruded to form a dovetail-shaped clamping groove matched with the disc spring steel pad in a buckling mode, the torque bolt sequentially penetrates through the disc spring steel pads on one side, the front connecting side plate, multiple groups of insulating connecting pieces, the rear connecting side plate and the disc spring steel pads on the other side, and the copper connecting piece and the copper-aluminum alloy clad sheet are connected with the joint busbar in butt joint with the same side through the square nut in threaded connection at the end part of the torque bolt and the multiple groups of insulating connecting pieces between the front connecting side plate and the rear connecting side plate in a locking mode.
10. The copper-aluminum alloy combined bus connector of claim 3, wherein: through holes for the penetration of the torque bolt are respectively formed in the insulating partition plate, the copper connecting sheet and the copper-aluminum alloy clad sheet in the insulating connecting piece.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021209233943 | 2021-04-29 | ||
| CN202120923394 | 2021-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214755398U true CN214755398U (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121113307.4U Active CN214755398U (en) | 2021-04-29 | 2021-05-21 | Copper-aluminum alloy combined bus connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214755398U (en) |
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2021
- 2021-05-21 CN CN202121113307.4U patent/CN214755398U/en active Active
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