CN202837358U - Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit - Google Patents
Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit Download PDFInfo
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- CN202837358U CN202837358U CN 201220545821 CN201220545821U CN202837358U CN 202837358 U CN202837358 U CN 202837358U CN 201220545821 CN201220545821 CN 201220545821 CN 201220545821 U CN201220545821 U CN 201220545821U CN 202837358 U CN202837358 U CN 202837358U
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Abstract
The utility model discloses a bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit. The scheme includes that a main current terminal of an intelligent three-phase kilowatt-hour meter, a current measurement device and load control are designed integrally, multifunctional terminal strips are formed individually and are mounted integrally, a plastic base includes an upper layer and a lower layer by means of design, and a magnetic circuit combination and an electric contact combination are mounted on the upper layer and the lower layer respectively. By means of transmission of a transmission pull rod, reliability and safety of products are improved, and the bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit is simple in structure, convenient to mount and simplified in traditional mounting process of a three-phase kilowatt-hour meter, and is more accordant with relevant standards of State Grid Corporation of China, relevant national standards and relevant international standards.
Description
Technical field
The invention belongs to electric-power metering and control technology field.The current measurement of the three-phase intelligent electric-energy meter in the electric-power metering and load control, practicable remote auto switches.
Background technology
The load control module of the wiring of double-layer integrally three-phase kilowatt-hour meter and current measurement is with under the effect of a kind of drives control signal, utilizing solenoid to produce electromagnetic force switches in permanent magnet is produced, holds yoke in solenoid by the pole piece in the permanent magnet, by corresponding shackle rod motion current-carrying part is realized switching on and off, solenoid no power after drive control signal disappears utilizes the magnetic of permanent magnet can still keep being switched on or switched off state.The present invention has that saves energy source, coil do not generate heat, principal current terminal and current measurement and load control are integrated, bear the characteristics such as large short circuit current ability, stable performance, be widely used in electric-power metering and the control of intelligent grid, especially now being used for three-phase intelligent electric-energy meter and switching with carrying out long-range electricity metering and remote auto, is the main devices of three-phase intelligent electric-energy meter.
The patent No. is the utility model of ZL200720149487.5, announce a kind of magnetic and kept continuing device, but there is more defective in this product: principal current terminal and current measurement device do not have integrated, also to install with screw separately, installing does not compact makes loose contact heating temperature rise, easily breaking out of fire security incident; There is not multifunction terminal; Product can't bear easy generation product blast during by large short circuit current, and the personal safety accident occurs easily; Do not meet requirement and the relevant criterion of present national grid three-phase intelligent electric-energy meter; It is low that difficulty and work efficiency are installed.
Summary of the invention
The load control module of double-layer integrally three-phase kilowatt-hour meter of the present invention wiring and current measurement provides current terminal, current measurement device and current capacity control to be designed to one.The present invention has realized between current terminal, current measurement device and the current capacity control not with the screw mounting means; The independent moulding of multifunction terminal bar can adopt the wiring board with three-phase intelligent electric-energy meter directly to carry out Auto-mounting or welding like this, has removed with signal wire and screw mounting means; The present invention has adopted does not have screw fixed installation mode, has stopped because the fire failure of the insecure heating that causes loose contact to cause, temperature rise initiation is installed; The present invention's design possesses the instantaneous large short circuit current ability of tolerance, and product is not blasted when bearing large short circuit current, has reached personal safety, meets simultaneously IEC and relevant national standard; The present invention has adopted magnetic circuit part and electrically contacted part and separate, and is two-layer about being designed to, and improved the ability of the anti-external magnetic field of on-load switch; The performance of product integral body improves, and has satisfied requirement and the relevant criterion of national grid three-phase intelligent electric-energy meter; Product of the present invention is integrated, volume is little, signal control line all available plug and electric energy meter wiring board directly peg graft, quite simple and reliable and can realize full-automatic production when electric energy meter producer installs, promoted production efficiency and saved the energy.
For realizing above-mentioned invention, the technical solution used in the present invention: the load control module of the wiring of a kind of double-layer integrally three-phase kilowatt-hour meter and current measurement, the principal current terminal is connected as one with the bus that electrically contacts part respectively, three current measurement device are installed in respectively on three identical buss, the connection of principal current terminal is electrically contacted combination, zero terminal, shackle rod, the magnetic circuit combination, the magnetic circuit clamping plate, the voltage terminal combination installs respectively and is fixed on the plastic base opposite position, plastic bottom cover and upper plastic cover closed be buckled on the plastic base, the independent moulding of multifunction terminal bar is fixed on above the plastic base.
The load control module of double-layer integrally three-phase kilowatt-hour meter of the present invention wiring and current measurement, it comprises plastic base, multifunction terminal bar, shackle rod, electrically contacts combination, current measurement device, magnetic circuit combination, magnetic circuit clamping plate, principal current terminal, zero terminal, voltage terminal combination, pressure spring, upper plastic cover and plastic bottom cover;
Described plastic base arranges front end, centre, rear end three parts is separated by by plastic wall and is connected, and plastic base is arranged to positive and two faces in bottom surface; Plastic base arranges the fore-end front and is provided with groove, be used for installing described multifunction terminal bar and voltage terminal combination, the front end of fore-end is provided with a plurality of circular ports, the external connection that is used for described principal current terminal hole, be provided with a plurality of square grooves hole below the front end groove, be used for installing described voltage terminal combination, be provided with a plurality of holes before and after the front end groove, be used for installing described voltage terminal combination; The fore-end bottom surface is provided with a plurality of draw-in grooves, is used for installing described electrically contact combination and the principal current terminal and the zero terminal that are connected; The plastic base center section is provided with the square aperture that a plurality of plastic walls are separated by, be respectively applied to settle described current measurement device, the center section front is provided with a plurality of plastics structures, be used for installing described current measurement device, middle both sides, the position lateral surface that links to each other with front end of plastic base is provided with groove, is used for matching with the three-phase intelligent electric-energy meter shell; Plastic base arranges rear end part and is separated by plastic wall and form positive and two die cavities in bottom surface, be provided with shrinkage pool on the plastic wall of front die cavity, plastic wall, plastics square hole pillar, plastic wall, the draw-in groove that pillar and pillar form, be used for installing described magnetic circuit combination, the plastics square hole is used for installing described magnetic circuit clamping plate, be provided with the draw-in groove that plastic wall forms on the die cavity plastic wall of bottom surface, be used for installing the described combination that electrically contacts, the plastic wall of being separated by in the middle of bottom surface die cavity and the plastic base is provided with open slot, be used for installing and fixing the described combination that electrically contacts, above and two die cavities in bottom surface near being provided with the opening that communicates on the plastic wall of plastic base center section, the opening that two die cavities communicate is used for installing described shackle rod; Plastic base front end, center section and rear end part disjunctor shape in T shape, a plurality of lateral surfaces are provided with convex closure, and the buckle ear that is used for described upper plastic cover and plastic bottom cover matches;
Described multifunction terminal bar comprises terminal plastic strip, signal copper tip, pressure-ray film, screw, terminal plastic strip front is provided with groove with two lateral surfaces, is used for matching with the three-phase intelligent electric-energy meter shell, top front end is provided with a plurality of corresponding concave ports with the rear end, a plurality of concave ports that front end is corresponding with the rear end arrange porose, be used for installing the signal copper tip, terminal plastic strip bottom surface is provided with chimb, is used for being fixed on groove above the described plastic base front end;
Describedly electrically contact combination and comprise three groups of moving conductive assemblies and three groups of quiet conductive components, moving conductive assembly bag
Draw together movable contact assembly and moving conductive bar, moving conductive bar one end and described principal current terminal are integrally connected, and the moving conductive bar other end is integrally connected with movable contact assembly; Quiet conductive component is comprised of a quiet bus and two electric contacts, quiet bus one end passes described current measurement device and described principal current terminal is integrally connected, and three groups electrically contact the principal current terminal that is connected and are fixed on together in the corresponding draw-in groove in described plastic base bottom surface;
Described current measurement device comprises three current transformers, and three current transformers are all installed respectively and describedly electrically contacted in the combination;
Described magnetic circuit combination comprises electromagnetic circuit assembly and magnet keeper assembly, the electromagnetic circuit assembly is fixed in the positive corresponding locating slot of described plastic base rearward end, two faces of magnet keeper assembly respectively are provided with and stretch out cylinder, also a face is provided with a driving lever, cylinder of a face is installed in the positive corresponding pilot hole of described plastic base rearward end, in the fixing described magnetic circuit sandwiched plate hole of cylinder of another face;
Described principal current terminal comprises electric current copper bar and screw, and electric current copper bar front end head center is provided with circular hole, and there are two king bolt holes and a primary screw hole in the front, and screw is installed in the screw hole, rear end tails with described electrically contact the combination be connected;
Described voltage terminal combination comprises copper tip, screw and bonding jumper, and copper tip is pressed in the positive corresponding square hole of described plastic base fore-end, and bonding jumper is fixed with screw;
Described zero terminal comprises a copper pillar and a plurality of screw, be provided with at least one circular port by a copper pillar one termination section center, be used for external connection, other end afterbody is provided with a primary screw hole, be used for installing signal wire, the front is provided with a plurality of screw holes and is used for installing screw;
The same size with described plastic base rear end part shape of described upper plastic cover is provided with the buckle ear that described plastic base convex closure matches all around;
Described plastic bottom cover shape in T shape, both sides outside face and bottom surface are provided with groove, be used for matching with described plastic base and three-phase intelligent electric-energy meter shell, plastic bottom cover is provided with three square openings and an aperture, and a plurality of faces are provided with the buckle ear that matches with described plastic base convex closure.
Above-mentioned double-layer integrally three-phase kilowatt-hour meter wiring and the load control module of current measurement, it is further characterized in that:
Described shackle rod comprises pull bar bar and three H type driving members, both sides all were provided with the long flat plastic strip of concave port about the pull bar bar became, the one end setting of H type driving member is H shape and is the working of plastics that ┻ shape handle is connected with the other end, and H type driving member ┻ shape handle is installed in the following corresponding concave port of pull bar bar;
Described pressure spring is by the stainless steel substrates moulding, and pressure spring one end is provided with a hole, and the moulding two ends are the stainless steel substrates of certain rake angle not on a plane;
It is long plate shaped that described magnetic circuit clamping plate are, be provided with a hole in the middle of the magnetic circuit clamping plate, cylinder that is used for fixing described magnet keeper assembly, the magnetic circuit clamping plate are provided with a plurality of location pillar and pilot hole, the location pillar of magnetic circuit clamping plate inserts in the corresponding pilot hole of described plastic base, the pilot hole of magnetic circuit clamping plate is fixed on described electromagnetic circuit assembly, Yi Bian the magnetic circuit clamping plate respectively stretch out the plastics positive stop strip, the plastics positive stop strip will limit the tilting of described shackle rod;
The pull bar bar two sides of described shackle rod are provided with many reinforcements, the pull bar bar all is provided with concave port in both sides up and down, upper one side arranges has a concave port at least, the magnet keeper assembly of concave port and magnetic circuit combination matches, lower one side is stretched out three place's plastic end and respectively is provided with concave port, also be provided with a little convex closure in the concave port, the plastic bottoms side of each concave port bottom surface is provided with the matrix open slot, and installation H type driving member ┻ shape handle is used for matching;
Three H type driving members of described shackle rod, one end is two openings of H shape and is the working of plastics that ┻ shape handle is connected with an end, H shape opening is toward upwarping with ┻ shape handle not on a face, and ┻ shape handle shape back underside is provided with step, and the matrix open slot of step and pull bar bar matches;
Described three groups of moving conductive assemblies comprise movable contact assembly and moving conductive bar, movable contact assembly is comprised of a plurality of copper sheets, reed, two electric contacts and the riveted joint of described pressure spring, movable contact assembly one end be the ∧ type after moving conductive bar one end is connected, the other end forms movable contact assembly free end after connecting, and the moving conductive bar other end is connected with described principal current terminal;
Described three groups of quiet conductive components comprise quiet bus and two electric contacts, quiet bus one end is provided with two holes, two electric contacts are passed behind the hole riveted joint together, and quiet bus passes described current measurement device, and the quiet bus other end and principal current terminal are integrally connected;
Three current transformers of described current measurement device, three current transformers are installed in respectively in the quiet bus of three groups of identical quiet conductive components, three current transformers all are provided with the signal extension line, signal wire is drawn the end and is provided with the line insertion terminal, and the signal extension line is fixed in the middle positive upper plastics structure that arranges of described plastic base;
The electromagnetic circuit assembly of described magnetic circuit combination, electromagnetic circuit assembly comprise coil, two yokes, iron core, and coil, two yokes, iron cores are linked into an integrated entity, and coil is provided with at least two voltage extension lines, and voltage extension line end arranges wired insertion terminal;
The magnet keeper assembly of described magnetic circuit combination, the magnet keeper assembly comprises two pole pieces, permanent magnet and engineering plastics, by engineering plastics two pole pieces, permanent magnet injection moulding are connected and are the H type, a driving lever is stretched out in the injection moulding of H type one side, and upper and lower faces respectively stretches out a round pillar in addition;
Copper tip one end of described voltage terminal combination is provided with screw hole, and the other end arranges perforation, and the sheet metal that bonding jumper is L-shaped arranges an elongated hole in the middle of on the bonding jumper and head arranges a matrix bayonet socket;
Three H type driving members of described shackle rod, H shape opening is used for installing the movable contact assembly free end of described moving conductive assembly, and the pressure spring head on the movable contact assembly and copper sheet head are installed in the H type driving member H shape opening;
The pull bar bar of described shackle rod is installed on the opening that described plastic base rear end is positive and two die cavities in bottom surface communicate, shackle rod top concave port is installed the driving lever of described magnet keeper assembly, and the following concave port of shackle rod is installed movable contact assembly free end;
On the quiet bus connection principal current terminal of described three groups of moving conductive assemblies a signal copper cash is set also, signal copper cash one end arranges wired ear, and the line ear is fixed on the bus, and the other end arranges wired insertion terminal;
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, near being cut into parallel biplate in the middle of the small sircle hole, be provided with circular hole on every and be used for electric contact is installed, electric contact passes the circular hole of copper sheet, reed and described pressure spring setting and rivets together;
Described terminal plastic strip front is provided with a plurality of digital font sizes, and both sides, the positive back of front end are provided with small column, are used for matching with the three-phase intelligent electric-energy meter wiring board;
Described magnet keeper assembly, cylinder that the setting of magnet keeper assembly is stretched out inserts in the corresponding hole of plastic wall of front, described plastic base rear end die cavity, the another side cylinder is fixed in the middle hole of described magnetic circuit clamping plate, and the driving lever that stretches out is installed in the corresponding concave port in pull bar bar top of described shackle rod.
Above-mentioned double-layer integrally three-phase kilowatt-hour meter wiring and the load control module of current measurement, it is further characterized in that:
Described shackle rod comprises pull bar bar and three H type driving members, both sides all are provided with the long flat plastic strip of concave port about the pull bar bar, the one end setting of H type driving member is H shape and is the working of plastics that ┻ shape handle is connected with the other end, H shape opening links to each other with ┻ shape handle to hold draw-in groove is set, and is used for installing described pressure spring on the draw-in groove; H type driving member ┻ shape handle is installed in the following corresponding concave port of pull bar bar;
Described pressure spring is U or S shape by the stainless steel substrates moulding;
Two openings of H shape that one end of described U-shaped or S shape pressure spring is fixed on described H shape driving member link to each other with ┻ shape handle in the draw-in groove that end arranges, and the other end stretches in two openings of H shape of described H shape driving member.
Similarly, the invention also discloses the load control module of the wiring of a kind of double-layer integrally three-phase kilowatt-hour meter and current measurement, it comprises plastic base, multifunction terminal bar, shackle rod, electrically contacts combination, current measurement device, magnetic circuit combination, magnetic circuit clamping plate, principal current terminal, zero terminal, voltage terminal combination, pressure spring, upper plastic cover and plastic bottom cover;
Described plastic base arranges front end, centre, rear end three parts is separated by by plastic wall and is connected, and plastic base is arranged to positive and two faces in bottom surface; Plastic base arranges the fore-end front and is provided with groove, be used for installing described multifunction terminal bar and voltage terminal combination, the front end of fore-end is provided with a plurality of circular ports, the external connection that is used for described principal current terminal hole, be provided with a plurality of square grooves hole below the front end groove, be used for installing described voltage terminal combination, be provided with a plurality of holes before and after the front end groove, be used for installing described voltage terminal combination; The fore-end bottom surface is provided with a plurality of draw-in grooves, is used for installing described electrically contact combination and the principal current terminal and the zero terminal that are connected; The plastic base center section is provided with the square aperture that a plurality of plastic walls are separated by, be respectively applied to settle described current measurement device, the center section front is provided with a plurality of plastics structures, be used for installing described current measurement device, middle both sides, the position lateral surface that links to each other with front end of plastic base is provided with groove, is used for matching with the three-phase intelligent electric-energy meter shell; Plastic base arranges rear end part and is separated by plastic wall and form positive and two die cavities in bottom surface, be provided with shrinkage pool on the plastic wall of front die cavity, plastic wall, plastics square hole pillar, plastic wall, the draw-in groove that pillar and pillar form, be used for installing described magnetic circuit combination, the plastics square hole is used for installing described magnetic circuit clamping plate, be provided with the draw-in groove that plastic wall forms on the die cavity plastic wall of bottom surface, be used for installing the described combination that electrically contacts, the plastic wall of being separated by in the middle of bottom surface die cavity and the plastic base is provided with open slot, be used for installing and fixing the described combination that electrically contacts, above and two die cavities in bottom surface near being provided with the opening that communicates on the plastic wall of plastic base center section, the opening that two die cavities communicate is used for installing described shackle rod; Plastic base front end, center section and rear end part disjunctor shape in T shape, a plurality of lateral surfaces are provided with convex closure, and the buckle ear that is used for described upper plastic cover and plastic bottom cover matches;
Described multifunction terminal bar comprises terminal plastic strip, signal copper tip, pressure-ray film, screw, terminal plastic strip front is provided with groove with two lateral surfaces, is used for matching with the three-phase intelligent electric-energy meter shell, top front end is provided with a plurality of corresponding concave ports with the rear end, a plurality of concave ports that front end is corresponding with the rear end arrange porose, be used for installing the signal copper tip, terminal plastic strip bottom surface is provided with chimb, is used for being fixed on groove above the described plastic base front end;
There was the long flat plastic strip of concave port on both sides about described shackle rod was arranged to, and the top is provided with a concave port at least, and bottom is provided with three concave ports at least;
Describedly electrically contact combination and comprise three groups of moving conductive assemblies and three groups of quiet conductive components, the moving conductive assembly comprises movable contact assembly and moving conductive bar, moving conductive bar one end and described principal current terminal are integrally connected, and the moving conductive bar other end is integrally connected with movable contact assembly; Quiet conductive component is comprised of a quiet bus and at least one electric contact, quiet bus one end is integrally connected with described principal current terminal after passing described current measurement device, and three groups electrically contact the principal current terminal that is connected and are fixed on together in the corresponding draw-in groove in described plastic base bottom surface;
Described current measurement device comprises three current transformers, and three current transformers are all installed respectively and describedly electrically contacted in the combination;
Described magnetic circuit combination comprises electromagnetic circuit assembly and magnet keeper assembly, the electromagnetic circuit assembly is fixed in the positive corresponding locating slot of described plastic base rearward end, two faces of magnet keeper assembly respectively are provided with and stretch out cylinder, also have a face to be provided with a driving lever, cylinder of a face is installed in the positive corresponding pilot hole of described plastic base rearward end, in the fixing described magnetic circuit sandwiched plate hole of cylinder of another face;
Described principal current terminal comprises electric current copper bar and screw, and electric current copper bar front end head center is provided with circular hole, and there are two king bolt holes and a primary screw hole in the front, and screw is installed in the screw hole, the rear end with described electrically contact the combination be connected;
Described zero terminal comprises a copper pillar and a plurality of screw, be provided with at least one circular port by a copper pillar one end one termination section center, be used for external connection, other end afterbody is provided with a primary screw hole, be used for installing signal wire, the front is provided with a plurality of screw holes and is used for installing the line ball screw;
Described voltage terminal combination comprises copper tip, screw and bonding jumper, and copper tip is pressed in the positive corresponding square hole of described plastic base fore-end, and bonding jumper is fixed with screw;
Described pressure spring is by the stainless steel substrates moulding, and pressure spring one end is provided with a hole, and the moulding two ends are the stainless steel substrates of certain rake angle not on a plane;
The same size with described plastic base rear end part shape of described upper plastic cover is provided with the buckle ear that described plastic base convex closure matches all around;
Described plastic bottom cover shape in T shape, both sides outside face and bottom surface are provided with groove, be used for matching with described plastic base and three-phase intelligent electric-energy meter shell, plastic bottom cover is provided with three square openings and an aperture, and a plurality of faces are provided with the buckle ear that matches with described plastic base convex closure.
Above-mentioned double-layer integrally three-phase kilowatt-hour meter wiring and the load control module of current measurement, it is further characterized in that:
It is long plate shaped that described magnetic circuit clamping plate are, be provided with a hole in the middle of the magnetic circuit clamping plate, cylinder that is used for fixing described magnet keeper assembly, the magnetic circuit clamping plate are provided with a plurality of location pillar and pilot hole, the location pillar of magnetic circuit clamping plate inserts in the corresponding pilot hole of described plastic base, the pilot hole of magnetic circuit clamping plate is fixed on described electromagnetic circuit assembly, Yi Bian the magnetic circuit clamping plate respectively stretch out the plastics positive stop strip, the plastics positive stop strip will limit the tilting of described shackle rod;
Described shackle rod two sides are provided with many reinforcements, shackle rod all is provided with concave port in both sides up and down, upper one side arranges has a concave port at least, and concave port matches with the magnet keeper assembly of magnetic circuit combination, one side be provided with three concave ports and match with movable contact assembly down;
Described three groups of moving conductive assemblies comprise movable contact assembly and moving conductive bar, movable contact assembly is comprised of a plurality of copper sheets, reed, at least one electric contact and at least one described pressure spring sheet riveted joint, movable contact assembly one end be the ∧ type after moving conductive bar one end is connected, the other end forms movable contact assembly free end after connecting, and the moving conductive bar other end is connected with described principal current terminal;
Described three groups of quiet conductive components comprise quiet bus and at least one electric contact, quiet bus one end is provided with at least one hole, electric contact is passed behind the hole riveted joint together, and quiet bus passes described current measurement device, and the quiet bus other end and principal current terminal are integrally connected;
Three current transformers of described current measurement device, three current transformers are installed in respectively in the bus of three groups of identical quiet conductive components, three current transformers all are provided with the signal extension line, signal wire is drawn the end and is provided with the line insertion terminal, and the signal extension line is fixed in the middle positive upper plastics structure that arranges of described plastic base;
The electromagnetic circuit assembly of described magnetic circuit combination, electromagnetic circuit assembly comprise coil, two yokes, iron core, and coil, two yokes, iron cores are linked into an integrated entity, and coil is provided with at least two voltage extension lines, and voltage extension line end arranges wired insertion terminal;
The magnet keeper assembly of described magnetic circuit combination, the magnet keeper assembly comprises two pole pieces, permanent magnet and engineering plastics, by engineering plastics two pole pieces, permanent magnet injection moulding are connected and are the H type, a driving lever is stretched out in the injection moulding of H type one side, and upper and lower faces respectively stretches out a circular shaft in addition;
Copper tip one end of described voltage terminal combination is provided with screw hole, and the other end arranges perforation, and the sheet metal that bonding jumper is L-shaped arranges an elongated hole in the middle of on the bonding jumper and head arranges a matrix bayonet socket;
On the moving conductive bar connection principal current terminal of described three groups of moving conductive assemblies a signal copper cash is set also, signal copper cash one end arranges wired ear, and the line ear is fixed on the bus, and the other end arranges wired insertion terminal;
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, near being cut into parallel biplate in the middle of the small sircle hole, be provided with circular hole on every and be used for installing electric contact, electric contact passes the circular hole of copper sheet, reed setting, and the pressure spring sheet is installed in the electric contact afterbody and a plurality of copper sheet is riveted with the overlapping back side of reed;
The pressure spring sheet two ends of described movable contact assembly are the stainless steel substrates of certain rake angle not on a plane, and an end arranges a hole, are used for being connected with copper sheet with electric contact;
Described shackle rod is installed on the opening that described plastic base rear end is positive and two die cavities in bottom surface communicate, and shackle rod top concave port is installed the driving lever of described magnet keeper assembly, and the following concave port of shackle rod is installed movable contact assembly free end;
Described terminal plastic strip front is provided with a plurality of digital font sizes, and both sides, the positive back of front end are provided with small column, are used for matching with the three-phase intelligent electric-energy meter wiring board;
Described magnet keeper assembly, the circular shaft that the setting of magnet keeper assembly is stretched out inserts in the corresponding hole of plastic wall of front, described plastic base rear end die cavity, the another side circular shaft is fixed on described magnetic circuit clamping plate in the corresponding hole of setting, and the driving lever that stretches out is installed in the corresponding concave port in described shackle rod top;
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, and small sircle hole is connected with bus, and the other end is provided with a circular hole, the electric contact afterbody is passed a plurality of copper sheets, reed and the overlapping circular hole of pressure spring sheet rivet together; The pressure spring sheet is packed into the head of multi-disc copper sheet, reed in the corresponding opening of described shackle rod.
Description of drawings
Fig. 1 is the axonometric drawing that waits of the present invention.
Fig. 2 is six views of the present invention.
Fig. 3 is explosive effect figure of the present invention.
Fig. 4 is one of plastic base of the present invention and Assembly of the parts three-dimensional structure diagram.
Fig. 5 is two of plastic base of the present invention and Assembly of the parts three-dimensional structure diagram.
Fig. 6 is three of plastic base of the present invention and Assembly of the parts three-dimensional structure diagram.
Fig. 7 is multifunction terminal bar structural drawing of the present invention.
Fig. 8 is one of magnetic circuit combination assumption diagram of the present invention.
Fig. 9 is two of magnetic circuit combination assumption diagram of the present invention.
Figure 10 is shackle rod structural drawing of the present invention.
Figure 11 is that the present invention electrically contacts combination assumption diagram.
Figure 12 is zero terminal structural drawing of the present invention.
Embodiment
The below is to be described further the present invention is a kind of with implementation by reference to the accompanying drawings.
As shown in Figure 6,3.A, 3.B and the 3.C of the principal current terminal 3.3 that connects of three quiet conductive component 3A.J that electrically contact combination of the load control module of double-layer integrally three-phase kilowatt-hour meter of the present invention wiring and current measurement, principal current terminal 3.4 that moving conductive assembly 3A.D connects sequentially are encased in the pickup groove (seeing Fig. 6, Figure 11) that plastic base 8 bottom surfaces are set by A, B, C.
Each adopts on all four setting three groups of three groups of described quiet conductive component 3A.J and moving conductive assembly 3A.D, describes (seeing Figure 11) take wherein one group as example.
Described quiet conductive component 3A.J comprises quiet bus 3.14, static contact 3.9, current measurement device 3.1, principal current terminal 3.3, screw 3.11, rivet 3.13, and moving conductive assembly 3A.D comprises moving conductive bar 3.2, principal current terminal 3.4, movable contact spring 3.5, a plurality of copper sheet 3.6 and 3.7, moving electric contact 3.8, rivet 3.10, screw 3.11, pressure spring 3.12.
Described moving conductive assembly 3A.D, movable contact spring 3.5 and a plurality of copper sheet 3.6 with movable contact assembly, 3.7 together overlapping, moving electric contact 3.8 passes the contact holes of setting, pressure spring 3.12 is installed on copper sheet 3.6,3.7 and rivet together at the back side of moving electric contact 3.8, movable contact spring 3.5 and a plurality of copper sheet 3.6,3.7 a plurality of apertures of upper setting and the convex closure on the moving conductive bar 3.2 riveted joint or with rivet, movable contact assembly free end and moving conductive bar are the ∧ type after the riveted joint, principal current terminal 3.4 is with moving conductive bar 3.2 and rivet 3.10 riveted joints, and principal current terminal 3.4 is equipped with screw 3.11.
Described quiet conductive component 3A.J is riveted on quiet bus 3.14 with static contact 3.9, and current measurement device 3.1 is installed on the quiet bus 3.14, and principal current terminal 3.3 is with the quiet bus 3.14 of rivet 3.13 riveted joints, and principal current terminal 3.3 is equipped with screw 3.11.
As shown in Figure 4, pedestal 8 is provided with the hole of a plurality of fixed voltage terminals 8.2, and voltage terminal 8.2 inserts and is fixed in the hole, and voltage terminal 8.2 two have screw hole to be used to install screw 8.5, and bonding jumper 8.3 is fixing with screw 8.5.
As shown in Figure 5, pedestal 8 is provided with the fixedly track of pillar, locating groove and counterbore, magnetic circuit clamping plate 6 pilot holes and shackle rod 7 motions of magnetic circuit part 2.
As shown in Figure 8, described magnetic circuit combination 2 is comprised of coil former 2.4, coil winding 2.5, iron core 2.3, yoke 2.2.1 and 2.2.2, magnet keeper assembly 2.1, coil lead 2.6.1 and 2.6.2.
As shown in Figure 5, the yoke 2.2.1 of magnetic circuit combination 2 and 2.2.2 being installed in pedestal 8 arranges in the corresponding draw-in groove; Magnetic circuit clamping plate 6 angles insert in the corresponding pilot hole of pedestal 8, with the position corresponding to G location of magnet keeper assembly 2.1.
As shown in Figure 9, magnet keeper assembly 2.1 is by pole piece 2.1.3, and 2.1.4 and permanent magnet 2.1.2 are as a whole with its injection moulding by engineering plastics 2.1.1; Magnet keeper assembly 2.1 is symmetrical H type structure, and respectively stretches out a G axle by engineering plastics injection mo(u)lding driving lever P and two faces, and the axle that stretches out of one side inserts in the corresponding pilot hole of pedestal 8, and one side stretches in the hole corresponding with magnetic circuit clamping plate 6.
As shown in figure 10, shackle rod 7 upper and lower surfaces all are provided with matrix opening 7.1a and 7.1b, matrix opening 7.1b has identical three, be used for assembling H type driving member 7.2, the matrix opening correspondence of A, the B of H type driving member 7.2, C is installed respectively the free end of the movable contact assembly of moving conductive assembly 3.A, 3.B, 3.C; Matrix opening 7.1a is used for the driving lever P position of assembling magnet keeper assembly 2.1.
As shown in figure 12, zero terminal 4 head end are provided with two external connection holes, are used for circumscripted power line, and the front end face is provided with two row's screw holes and is used for installing screw 4.2, and zero terminal afterbody 4.1 is provided with a primary screw hole and is used for installing primary screw.
Described multifunction terminal bar 1.1 has a plurality of holes as shown in Figure 7, be used for installing current terminal 1.2, current terminal 1.2 head end are provided with a circular hole, be used for external connection, be provided with the primary screw hole on the front and be used for being equipped with 1.4 screws and 1.3 pressure-ray films, afterbody is provided with a primary screw hole, and screw or fixing stitch 1.5 be used for to be installed;
Multi-functional auxiliary terminal block bar 1 is installed in above the pedestal 8 as shown in Figure 5.As shown in Figure 1, part is packed into behind the plastic seat, upper plastic cover 6 and plastic bottom cover 9 are closed button be integrated, stamp self-tapping screw 10 at lower cover 9 again.
The specific embodiment of the load control module of double-layer integrally three-phase kilowatt-hour meter of the present invention wiring and current measurement to sum up, has been described.The present invention has optimized the structure of a kind of three-phase current measurement and load control module.As long as on basic structure of the present invention, can derive other specific embodiments, for example the magnetic circuit of this programme makes up and electrically contacts combination and is set to layer structure; And for example the plastic base setting is split up into two-part structure,, these structures can be realized by simple transformation by the designer, also in the scope of protection of the invention.
Claims (10)
1. the load control module of double-layer integrally three-phase kilowatt-hour meter wiring and current measurement, it comprises plastic base, multifunction terminal bar, shackle rod, electrically contacts combination, current measurement device, magnetic circuit combination, magnetic circuit clamping plate, principal current terminal, zero terminal, voltage terminal combination, pressure spring, upper plastic cover and plastic bottom cover; It is characterized in that:
Described plastic base arranges front end, centre, rear end three parts is separated by by plastic wall and is connected, and plastic base is arranged to positive and two faces in bottom surface; Plastic base arranges the fore-end front and is provided with groove, be used for installing described multifunction terminal bar and voltage terminal combination, the front end of fore-end is provided with a plurality of circular ports, the external connection that is used for described principal current terminal hole, be provided with a plurality of square grooves hole below the front end groove, be used for installing described voltage terminal combination, be provided with a plurality of holes before and after the front end groove, be used for installing described voltage terminal combination; The fore-end bottom surface is provided with a plurality of draw-in grooves, is used for installing described electrically contact combination and the principal current terminal and the zero terminal that are connected; The plastic base center section is provided with the square aperture that a plurality of plastic walls are separated by, be respectively applied to settle described current measurement device, the center section front is provided with a plurality of plastics structures, be used for installing described current measurement device, middle both sides, the position lateral surface that links to each other with front end of plastic base is provided with groove, is used for matching with the three-phase intelligent electric-energy meter shell; Plastic base arranges rear end part and is separated by plastic wall and form positive and two die cavities in bottom surface, be provided with shrinkage pool on the plastic wall of front die cavity, plastic wall, plastics square hole pillar, plastic wall, the draw-in groove that pillar and pillar form, be used for installing described magnetic circuit combination, the plastics square hole is used for installing described magnetic circuit clamping plate, be provided with the draw-in groove that plastic wall forms on the die cavity plastic wall of bottom surface, be used for installing the described combination that electrically contacts, the plastic wall of being separated by in the middle of bottom surface die cavity and the plastic base is provided with open slot, be used for installing and fixing the described combination that electrically contacts, above and two die cavities in bottom surface near being provided with the opening that communicates on the plastic wall of plastic base center section, the opening that two die cavities communicate is used for installing described shackle rod; Plastic base front end, center section and rear end part disjunctor shape in T shape, a plurality of lateral surfaces are provided with convex closure, and the buckle ear that is used for described upper plastic cover and plastic bottom cover matches;
Described multifunction terminal bar comprises terminal plastic strip, signal copper tip, pressure-ray film, screw, terminal plastic strip front is provided with groove with two lateral surfaces, is used for matching with the three-phase intelligent electric-energy meter shell, top front end is provided with a plurality of corresponding concave ports with the rear end, a plurality of concave ports that front end is corresponding with the rear end arrange porose, be used for installing the signal copper tip, terminal plastic strip bottom surface is provided with chimb, is used for being fixed on groove above the described plastic base front end;
Describedly electrically contact combination and comprise three groups of moving conductive assemblies and three groups of quiet conductive components, moving conductive assembly bag
Draw together movable contact assembly and moving conductive bar, moving conductive bar one end and described principal current terminal are integrally connected, and the moving conductive bar other end is integrally connected with movable contact assembly; Quiet conductive component is comprised of a quiet bus and two electric contacts, quiet bus one end passes described current measurement device and described principal current terminal is integrally connected, and three groups electrically contact the principal current terminal that is connected and are fixed on together in the corresponding draw-in groove in described plastic base bottom surface;
Described current measurement device comprises three current transformers, and three current transformers are all installed respectively and describedly electrically contacted in the combination;
Described magnetic circuit combination comprises electromagnetic circuit assembly and magnet keeper assembly, the electromagnetic circuit assembly is fixed in the positive corresponding locating slot of described plastic base rearward end, two faces of magnet keeper assembly respectively are provided with and stretch out cylinder, also a face is provided with a driving lever, cylinder of a face is installed in the positive corresponding pilot hole of described plastic base rearward end, in the fixing described magnetic circuit sandwiched plate hole of cylinder of another face;
Described principal current terminal comprises electric current copper bar and screw, and electric current copper bar front end head center is provided with circular hole, and there are two king bolt holes and a primary screw hole in the front, and screw is installed in the screw hole, rear end tails with described electrically contact the combination be connected;
Described voltage terminal combination comprises copper tip, screw and bonding jumper, and copper tip is pressed in the positive corresponding square hole of described plastic base fore-end, and bonding jumper is fixed with screw;
Described zero terminal comprises a copper pillar and a plurality of screw, be provided with at least one circular port by a copper pillar one termination section center, be used for external connection, other end afterbody is provided with a primary screw hole, be used for installing signal wire, the front is provided with a plurality of screw holes and is used for installing screw;
The same size with described plastic base rear end part shape of described upper plastic cover is provided with the buckle ear that described plastic base convex closure matches all around;
Described plastic bottom cover shape in T shape, both sides outside face and bottom surface are provided with groove, be used for matching with described plastic base and three-phase intelligent electric-energy meter shell, plastic bottom cover is provided with three square openings and an aperture, and a plurality of faces are provided with the buckle ear that matches with described plastic base convex closure.
2. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 1 wiring and current measurement is characterized in that:
Described shackle rod comprises pull bar bar and three H type driving members, both sides all were provided with the long flat plastic strip of concave port about the pull bar bar became, the one end setting of H type driving member is H shape and is the working of plastics that ┻ shape handle is connected with the other end, and H type driving member ┻ shape handle is installed in the following corresponding concave port of pull bar bar;
Described pressure spring is by the stainless steel substrates moulding, and pressure spring one end is provided with a hole, and the moulding two ends are the stainless steel substrates of certain rake angle not on a plane.
3. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 2 wiring and current measurement is characterized in that:
It is long plate shaped that described magnetic circuit clamping plate are, be provided with a hole in the middle of the magnetic circuit clamping plate, cylinder that is used for fixing described magnet keeper assembly, the magnetic circuit clamping plate are provided with a plurality of location pillar and pilot hole, the location pillar of magnetic circuit clamping plate inserts in the corresponding pilot hole of described plastic base, the pilot hole of magnetic circuit clamping plate is fixed on described electromagnetic circuit assembly, Yi Bian the magnetic circuit clamping plate respectively stretch out the plastics positive stop strip, the plastics positive stop strip will limit the tilting of described shackle rod;
The pull bar bar two sides of described shackle rod are provided with many reinforcements, the pull bar bar all is provided with concave port in both sides up and down, upper one side arranges has a concave port at least, the magnet keeper assembly of concave port and magnetic circuit combination matches, lower one side is stretched out three place's plastic end and respectively is provided with concave port, also be provided with a little convex closure in the concave port, the plastic bottoms side of each concave port bottom surface is provided with the matrix open slot, and installation H type driving member ┻ shape handle is used for matching;
Three H type driving members of described shackle rod, one end is two openings of H shape and is the working of plastics that ┻ shape handle is connected with an end, H shape opening is toward upwarping with ┻ shape handle not on a face, and ┻ shape handle shape back underside is provided with step, and the matrix open slot of step and pull bar bar matches;
Described three groups of moving conductive assemblies comprise movable contact assembly and moving conductive bar, movable contact assembly is comprised of a plurality of copper sheets, reed, two electric contacts and the riveted joint of described pressure spring, movable contact assembly one end be the ∧ type after moving conductive bar one end is connected, the other end forms movable contact assembly free end after connecting, and the moving conductive bar other end is connected with described principal current terminal;
Described three groups of quiet conductive components comprise quiet bus and two electric contacts, quiet bus one end is provided with two holes, two electric contacts are passed behind the hole riveted joint together, and quiet bus passes described current measurement device, and the quiet bus other end and principal current terminal are integrally connected;
Three current transformers of described current measurement device, three current transformers are installed in respectively in the quiet bus of three groups of identical quiet conductive components, three current transformers all are provided with the signal extension line, signal wire is drawn the end and is provided with the line insertion terminal, and the signal extension line is fixed in the middle positive upper plastics structure that arranges of described plastic base;
The electromagnetic circuit assembly of described magnetic circuit combination, electromagnetic circuit assembly comprise coil, two yokes, iron core, and coil, two yokes, iron cores are linked into an integrated entity, and coil is provided with at least two voltage extension lines, and voltage extension line end arranges wired insertion terminal;
The magnet keeper assembly of described magnetic circuit combination, the magnet keeper assembly comprises two pole pieces, permanent magnet and engineering plastics, by engineering plastics two pole pieces, permanent magnet injection moulding are connected and are the H type, a driving lever is stretched out in the injection moulding of H type one side, and upper and lower faces respectively stretches out a round pillar in addition;
Copper tip one end of described voltage terminal combination is provided with screw hole, and the other end arranges perforation, and the sheet metal that bonding jumper is L-shaped arranges an elongated hole in the middle of on the bonding jumper and head arranges a matrix bayonet socket.
4. it is characterized in that according to claim 2 or the load control module of 3 described double-layer integrally three-phase kilowatt-hour meter wiring and current measurement:
Three H type driving members of described shackle rod, H shape opening is used for installing the movable contact assembly free end of described moving conductive assembly, and the pressure spring head on the movable contact assembly and copper sheet head are installed in the H type driving member H shape opening;
The pull bar bar of described shackle rod is installed on the opening that described plastic base rear end is positive and two die cavities in bottom surface communicate, shackle rod top concave port is installed the driving lever of described magnet keeper assembly, and the following concave port of shackle rod is installed movable contact assembly free end;
On the quiet bus connection principal current terminal of described three groups of moving conductive assemblies a signal copper cash is set also, signal copper cash one end arranges wired ear, and the line ear is fixed on the bus, and the other end arranges wired insertion terminal;
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, near being cut into parallel biplate in the middle of the small sircle hole, be provided with circular hole on every and be used for electric contact is installed, electric contact passes the circular hole of copper sheet, reed and described pressure spring setting and rivets together;
Described terminal plastic strip front is provided with a plurality of digital font sizes, and both sides, the positive back of front end are provided with small column, are used for matching with the three-phase intelligent electric-energy meter wiring board;
Described magnet keeper assembly, cylinder that the setting of magnet keeper assembly is stretched out inserts in the corresponding hole of plastic wall of front, described plastic base rear end die cavity, the another side cylinder is fixed in the middle hole of described magnetic circuit clamping plate, and the driving lever that stretches out is installed in the corresponding concave port in pull bar bar top of described shackle rod.
5. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 1 wiring and current measurement is characterized in that:
Described shackle rod comprises pull bar bar and three H type driving members, both sides all are provided with the long flat plastic strip of concave port about the pull bar bar, the one end setting of H type driving member is H shape and is the working of plastics that ┻ shape handle is connected with the other end, H shape opening links to each other with ┻ shape handle to hold draw-in groove is set, and is used for installing described pressure spring on the draw-in groove; H type driving member ┻ shape handle is installed in the following corresponding concave port of pull bar bar;
Described pressure spring is U or S shape by the stainless steel substrates moulding.
6. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 5 wiring and current measurement is characterized in that:
Two openings of H shape that one end of described U-shaped or S shape pressure spring is fixed on described H shape driving member link to each other with ┻ shape handle in the draw-in groove that end arranges, and the other end stretches in two openings of H shape of described H shape driving member.
7. the load control module of double-layer integrally three-phase kilowatt-hour meter wiring and current measurement, it comprises plastic base, multifunction terminal bar, shackle rod, electrically contacts combination, current measurement device, magnetic circuit combination, magnetic circuit clamping plate, principal current terminal, zero terminal, voltage terminal combination, pressure spring, upper plastic cover and plastic bottom cover; It is characterized in that:
Described plastic base arranges front end, centre, rear end three parts is separated by by plastic wall and is connected, and plastic base is arranged to positive and two faces in bottom surface; Plastic base arranges the fore-end front and is provided with groove, be used for installing described multifunction terminal bar and voltage terminal combination, the front end of fore-end is provided with a plurality of circular ports, the external connection that is used for described principal current terminal hole, be provided with a plurality of square grooves hole below the front end groove, be used for installing described voltage terminal combination, be provided with a plurality of holes before and after the front end groove, be used for installing described voltage terminal combination; The fore-end bottom surface is provided with a plurality of draw-in grooves, is used for installing described electrically contact combination and the principal current terminal and the zero terminal that are connected; The plastic base center section is provided with the square aperture that a plurality of plastic walls are separated by, be respectively applied to settle described current measurement device, the center section front is provided with a plurality of plastics structures, be used for installing described current measurement device, middle both sides, the position lateral surface that links to each other with front end of plastic base is provided with groove, is used for matching with the three-phase intelligent electric-energy meter shell; Plastic base arranges rear end part and is separated by plastic wall and form positive and two die cavities in bottom surface, be provided with shrinkage pool on the plastic wall of front die cavity, plastic wall, plastics square hole pillar, plastic wall, the draw-in groove that pillar and pillar form, be used for installing described magnetic circuit combination, the plastics square hole is used for installing described magnetic circuit clamping plate, be provided with the draw-in groove that plastic wall forms on the die cavity plastic wall of bottom surface, be used for installing the described combination that electrically contacts, the plastic wall of being separated by in the middle of bottom surface die cavity and the plastic base is provided with open slot, be used for installing and fixing the described combination that electrically contacts, above and two die cavities in bottom surface near being provided with the opening that communicates on the plastic wall of plastic base center section, the opening that two die cavities communicate is used for installing described shackle rod; Plastic base front end, center section and rear end part disjunctor shape in T shape, a plurality of lateral surfaces are provided with convex closure, and the buckle ear that is used for described upper plastic cover and plastic bottom cover matches;
Described multifunction terminal bar comprises terminal plastic strip, signal copper tip, pressure-ray film, screw, terminal plastic strip front is provided with groove with two lateral surfaces, is used for matching with the three-phase intelligent electric-energy meter shell, top front end is provided with a plurality of corresponding concave ports with the rear end, a plurality of concave ports that front end is corresponding with the rear end arrange porose, be used for installing the signal copper tip, terminal plastic strip bottom surface is provided with chimb, is used for being fixed on groove above the described plastic base front end;
There was the long flat plastic strip of concave port on both sides about described shackle rod was arranged to, and the top is provided with a concave port at least, and bottom is provided with three concave ports at least;
Describedly electrically contact combination and comprise three groups of moving conductive assemblies and three groups of quiet conductive components, the moving conductive assembly comprises movable contact assembly and moving conductive bar, moving conductive bar one end and described principal current terminal are integrally connected, and the moving conductive bar other end is integrally connected with movable contact assembly; Quiet conductive component is comprised of a quiet bus and at least one electric contact, quiet bus one end is integrally connected with described principal current terminal after passing described current measurement device, and three groups electrically contact the principal current terminal that is connected and are fixed on together in the corresponding draw-in groove in described plastic base bottom surface;
Described current measurement device comprises three current transformers, and three current transformers are all installed respectively and describedly electrically contacted in the combination;
Described magnetic circuit combination comprises electromagnetic circuit assembly and magnet keeper assembly, the electromagnetic circuit assembly is fixed in the positive corresponding locating slot of described plastic base rearward end, two faces of magnet keeper assembly respectively are provided with and stretch out cylinder, also have a face to be provided with a driving lever, cylinder of a face is installed in the positive corresponding pilot hole of described plastic base rearward end, in the fixing described magnetic circuit sandwiched plate hole of cylinder of another face;
Described principal current terminal comprises electric current copper bar and screw, and electric current copper bar front end head center is provided with circular hole, and there are two king bolt holes and a primary screw hole in the front, and screw is installed in the screw hole, the rear end with described electrically contact the combination be connected;
Described zero terminal comprises a copper pillar and a plurality of screw, be provided with at least one circular port by a copper pillar one end one termination section center, be used for external connection, other end afterbody is provided with a primary screw hole, be used for installing signal wire, the front is provided with a plurality of screw holes and is used for installing the line ball screw;
Described voltage terminal combination comprises copper tip, screw and bonding jumper, and copper tip is pressed in the positive corresponding square hole of described plastic base fore-end, and bonding jumper is fixed with screw;
Described pressure spring is by the stainless steel substrates moulding, and pressure spring one end is provided with a hole, and the moulding two ends are the stainless steel substrates of certain rake angle not on a plane;
The same size with described plastic base rear end part shape of described upper plastic cover is provided with the buckle ear that described plastic base convex closure matches all around;
Described plastic bottom cover shape in T shape, both sides outside face and bottom surface are provided with groove, be used for matching with described plastic base and three-phase intelligent electric-energy meter shell, plastic bottom cover is provided with three square openings and an aperture, and a plurality of faces are provided with the buckle ear that matches with described plastic base convex closure.
8. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 7 wiring and current measurement is characterized in that:
It is long plate shaped that described magnetic circuit clamping plate are, be provided with a hole in the middle of the magnetic circuit clamping plate, cylinder that is used for fixing described magnet keeper assembly, the magnetic circuit clamping plate are provided with a plurality of location pillar and pilot hole, the location pillar of magnetic circuit clamping plate inserts in the corresponding pilot hole of described plastic base, the pilot hole of magnetic circuit clamping plate is fixed on described electromagnetic circuit assembly, Yi Bian the magnetic circuit clamping plate respectively stretch out the plastics positive stop strip, the plastics positive stop strip will limit the tilting of described shackle rod;
Described shackle rod two sides are provided with many reinforcements, shackle rod all is provided with concave port in both sides up and down, upper one side arranges has a concave port at least, and concave port matches with the magnet keeper assembly of magnetic circuit combination, one side be provided with three concave ports and match with movable contact assembly down;
Described three groups of moving conductive assemblies comprise movable contact assembly and moving conductive bar, movable contact assembly is comprised of a plurality of copper sheets, reed, at least one electric contact and at least one described pressure spring sheet riveted joint, movable contact assembly one end be the ∧ type after moving conductive bar one end is connected, the other end forms movable contact assembly free end after connecting, and the moving conductive bar other end is connected with described principal current terminal;
Described three groups of quiet conductive components comprise quiet bus and at least one electric contact, quiet bus one end is provided with at least one hole, electric contact is passed behind the hole riveted joint together, and quiet bus passes described current measurement device, and the quiet bus other end and principal current terminal are integrally connected;
Three current transformers of described current measurement device, three current transformers are installed in respectively in the bus of three groups of identical quiet conductive components, three current transformers all are provided with the signal extension line, signal wire is drawn the end and is provided with the line insertion terminal, and the signal extension line is fixed in the middle positive upper plastics structure that arranges of described plastic base;
The electromagnetic circuit assembly of described magnetic circuit combination, electromagnetic circuit assembly comprise coil, two yokes, iron core, and coil, two yokes, iron cores are linked into an integrated entity, and coil is provided with at least two voltage extension lines, and voltage extension line end arranges wired insertion terminal;
The magnet keeper assembly of described magnetic circuit combination, the magnet keeper assembly comprises two pole pieces, permanent magnet and engineering plastics, by engineering plastics two pole pieces, permanent magnet injection moulding are connected and are the H type, a driving lever is stretched out in the injection moulding of H type one side, and upper and lower faces respectively stretches out a circular shaft in addition;
Copper tip one end of described voltage terminal combination is provided with screw hole, and the other end arranges perforation, and the sheet metal that bonding jumper is L-shaped arranges an elongated hole in the middle of on the bonding jumper and head arranges a matrix bayonet socket.
9. it is characterized in that according to claim 7 or the load control module of 8 described double-layer integrally three-phase kilowatt-hour meter wiring and current measurement:
On the moving conductive bar connection principal current terminal of described three groups of moving conductive assemblies a signal copper cash is set also, signal copper cash one end arranges wired ear, and the line ear is fixed on the bus, and the other end arranges wired insertion terminal;
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, near being cut into parallel biplate in the middle of the small sircle hole, be provided with circular hole on every and be used for installing electric contact, electric contact passes the circular hole of copper sheet, reed setting, and the pressure spring sheet is installed in the electric contact afterbody and a plurality of copper sheet is riveted with the overlapping back side of reed;
The pressure spring sheet two ends of described movable contact assembly are the stainless steel substrates of certain rake angle not on a plane, and an end arranges a hole, are used for being connected with copper sheet with electric contact;
Described shackle rod is installed on the opening that described plastic base rear end is positive and two die cavities in bottom surface communicate, and shackle rod top concave port is installed the driving lever of described magnet keeper assembly, and the following concave port of shackle rod is installed movable contact assembly free end;
Described terminal plastic strip front is provided with a plurality of digital font sizes, and both sides, the positive back of front end are provided with small column, are used for matching with the three-phase intelligent electric-energy meter wiring board;
Described magnet keeper assembly, the circular shaft that the setting of magnet keeper assembly is stretched out inserts in the corresponding hole of plastic wall of front, described plastic base rear end die cavity, the another side circular shaft is fixed on described magnetic circuit clamping plate in the corresponding hole of setting, and the driving lever that stretches out is installed in the corresponding concave port in described shackle rod top.
10. the load control module of double-layer integrally three-phase kilowatt-hour meter according to claim 9 wiring and current measurement is characterized in that:
The multi-disc copper sheet of described movable contact assembly, reed one end are provided with a plurality of small sircle holes, and small sircle hole is connected with bus, and the other end is provided with a circular hole, the electric contact afterbody is passed a plurality of copper sheets, reed and the overlapping circular hole of pressure spring sheet rivet together; The pressure spring sheet is packed into the head of multi-disc copper sheet, reed in the corresponding opening of described shackle rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545821 CN202837358U (en) | 2012-10-24 | 2012-10-24 | Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220545821 CN202837358U (en) | 2012-10-24 | 2012-10-24 | Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit |
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| Publication Number | Publication Date |
|---|---|
| CN202837358U true CN202837358U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220545821 Expired - Fee Related CN202837358U (en) | 2012-10-24 | 2012-10-24 | Bi-layer integrated three-phase kilowatt-hour meter wiring and current measurement load control unit |
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| CN (1) | CN202837358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914675A (en) * | 2012-10-24 | 2013-02-06 | 宏工（长沙）电子技术有限公司 | Load control unit of wiring and current measurement of dual-layer integrated three-phase kilowatt-hour meter |
-
2012
- 2012-10-24 CN CN 201220545821 patent/CN202837358U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914675A (en) * | 2012-10-24 | 2013-02-06 | 宏工（长沙）电子技术有限公司 | Load control unit of wiring and current measurement of dual-layer integrated three-phase kilowatt-hour meter |
| CN102914675B (en) * | 2012-10-24 | 2014-12-24 | 宏工（长沙）电子技术有限公司 | Load control unit of wiring and current measurement of dual-layer integrated three-phase kilowatt-hour meter |
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