CN106370896B - A kind of electric energy meter - Google Patents
A kind of electric energy meter Download PDFInfo
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- CN106370896B CN106370896B CN201610756293.5A CN201610756293A CN106370896B CN 106370896 B CN106370896 B CN 106370896B CN 201610756293 A CN201610756293 A CN 201610756293A CN 106370896 B CN106370896 B CN 106370896B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Abstract
The invention discloses a kind of electric energy meter, including lower case, the upper housing being connected in lower case, junction block, and it is mounted on the intracorporal relay of lower casing and mutual inductor；Four terminal insertion ports are successively plugged with the first input terminal, the first outlet terminal, the second input terminal and the second outlet terminal from left to right；First input terminal, the first outlet terminal are connect with relay respectively；First input terminal includes inner connecting end, and is molded over the outer connecting pin of inner connecting end lower end；The outer connecting pin lower end forms conducting wire slot；Conductive lasso is connected in the conducting wire slot；The mutual inductor is detachable, so that the first outlet terminal is directly connect with relay, not extra connecting node reduces the resistance value of the first outlet terminal part, reduces calorific value, extends the service life of ammeter.
Description
Technical field
The invention belongs to technical field of electric power more particularly to a kind of electric energy meters.
Background technique
The Chinese utility model patent of Patent No. 201320236205.0 proposes a kind of electromagnetism with diamagnetic structure
The intelligent electric meter of formula current transformer；The intelligent electric meter includes ammeter pedestal, relay, electromagnetic current transducer, connects
Line terminals and primary current conductor；Electromagnetic current transducer has annular core；Above-mentioned intelligent electric meter will be electric due to using
The axis of the annular core of magnetic-type current transformer is arranged perpendicular to the baseplane of ammeter pedestal, so that the first iron of mutual inductor
Core, the second iron core it is primary by when generated magnetic field magnet with electric energy meter bottom caused by magnetic field be mutually perpendicular to, it is electric
Can magnetic field caused by the magnet of table bottom would not interfere the first iron core, produced when primary current passes through with the second iron core
Magnetic field.
But connect by electromagnetic current transducer with relay in electric wire, in electric wire and electromagnetic current transducer
Junction has connecting node, increases the resistance at this, calorific value is caused to increase, and has shortened above-mentioned intelligent electric meter
Service life.
In addition, the general structure of the connecting terminal of electric energy meter lower part is to form electric wire slot in connecting terminal lower part, connecing
On front side of line terminals attachment screw to by wire clamping in electric wire slot, but since the diameter of electric wire is always less than electric wire slot
Internal diameter, it is also only that line connects between screw front end and electric wire outer wall that such electric wire outer wall and electric wire slot inner wall, which form line and contact,
Touching, so causing contact resistance between electric wire and wiring slot big, will lead to wiring socket portion calorific value when electric current is larger
Greatly, accelerate electric energy meter components aging, influence the whole service life of electric energy meter.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficienciess of the prior art, providing a kind of reduction electric wire hair
Heat, thus the electric energy meter to prolong the service life.
Purpose to realize the present invention, is achieved using following technical scheme: a kind of electric energy meter, including lower case, even
The upper housing in lower case, junction block are connect, and is mounted on the intracorporal relay of lower casing and mutual inductor.
The lower case lower end forms seat board；The junction block is mounted on seat board；It is located at junction block on the seat board
Two side positions are fixedly connected with buckle.
Junction block two sides side wall is fixedly connected with and the strip being buckled to fix.
The each side wall upper part of junction block forms card slot；There are four terminal insertion ports for the junction block upper surface molding；
There are four preceding notches for the junction block front end face molding；The position that the junction block lower end surface corresponds to each terminal insertion ports forms
Incoming line；The preceding notch of corresponding position, terminal insertion ports and incoming line communicate on the junction block.
Four terminal insertion ports are successively plugged with the first input terminal from left to right, the first outlet terminal, the second input terminal,
And second outlet terminal.
First input terminal, the first outlet terminal are connect with relay respectively.
It is fixedly connected between second input terminal top and second outlet terminal top by lock-screw
Connection sheet.
First input terminal includes inner connecting end, and is molded over the outer connecting pin of inner connecting end lower end；It is described outer
Connecting pin lower end forms conducting wire slot；Conductive lasso is connected in the conducting wire slot.
It is described conduction lasso include multiple interior flange collars being placed equidistant with along axial direction, and be molded over it is adjacent up and down in flange collar it
Between outer flange collar；The conduction lasso lower sides form screw and hold hole；The conduction lasso lower end is fixedly connected with lower block
Circle.
Multiple longitudinal strip shape gobs are circumferentially uniformly formed in each outer flange collar and interior flange collar along outer flange collar；In each interior flange collar
Circumferentially uniformly form 3 ~ 5 interior cards；The interior card is located between two neighboring longitudinal strip shape gob；In the interior flange collar
Lateral port is formed above interior card.
First outlet terminal includes inner connecting end and outer connecting pin；The lower end of the inner connecting end be connected with
The mutual inductor mounting portion of the lower case plane perpendicular, the mutual inductor mounting portion other end are connected with parallel with lower case bottom surface
The transition connection portion of setting, the other end of transition connection portion and outer connecting pin integrally connected；The outer connecting pin lower end forms
Conducting wire slot；Conductive lasso is installed in the conducting wire slot.
Second input terminal includes inner connecting end, is molded over the outer connecting pin of interior linkage section lower end；The interior connection
End top forms screw hole b；Periphery in the inner connecting end positioned at screw hole b uniformly forms multiple flange collars；It is described outer
Connecting pin lower end forms conducting wire slot；Conductive lasso is installed in the conducting wire slot.
Second outlet terminal is identical as the second input terminal structure.
First input terminal, the first outlet terminal, the second input terminal, the second outlet terminal lower part be separately connected
There is push plate；The lower retaining ring of the push plate upper end and the conductive lasso lower end offsets.
Each outer connecting pin lower front side is separately formed the push plate socket with push plate cooperation positioning；It is pushed away described in each
Plate socket bottom surface is slope；It is located at the position above push plate socket on each outer connecting pin and forms screw hole a.
The push plate includes riser, and the plate for being molded over two side lower part of riser inner face and being arranged perpendicular to riser,
The plate lower end surface is to cooperate the inclined-plane being slidably connected with the slope；Corresponding outer connecting pin screw hole a on the riser
Position form screw perforation；The two sides that the riser outer end face is located at screw perforation are formed to be arranged along riser length direction
Reinforcing rib.
Lock-screw is connected in the screw perforation；
Inner end position in each outer connecting pin positioned at slope forms locating groove；The plate lower end surface at
Type has the positioning chuck with locating groove cooperation positioning.
The mutual inductor includes main part and plug division；The main part is integrally U-shaped, and one is formed among main part
U-shaped mouth, there are two interface, two interfaces are located along the same line the molding of main part both ends.
The plug division is plugged between two interfaces；The mutual inductor is mounted on the interior of the first outlet terminal and connects
It connects on end, the mutual inductor installation position is in the perforation that U-shaped mouth and plug division are formed.
The main part includes the shell of ambroin material, installs the first iron core of U-shaped inside the shell, and around
The winding outside the first iron core is made, the shell is formed by the halfbody snapping of two symmetrical configurations.
The plug division includes the shell of ambroin material and the second iron core for being mounted on the intracorporal bar shaped of shell, institute
The side for stating the second iron core both ends is exposed outside shell, so that plug division is installed on main part the second iron core and the first iron core later
Surround the iron core-closed of a rectangle.
It is located on inner wall of the interface far from the first core ends on the shell and forms clamp, and is located at card on shell
The side of head forms deformation gap；The bayonet for cooperating positioning clamping with the clamp is formed on the housing exterior walls；It is described
One end of shell forms the end location-plate that area is greater than the interface.
Compared with prior art, the beneficial effects of the present invention are: the conduction lasso interpolation sets electric wire, when conductive lasso
When being compressed axially, interior flange collar middle part position inwardly generates deformation and clamps electric wire, while outer flange collar middle part position generates outward
Deformation is tight against on conducting wire slot inner wall, so that the contact between electric wire and conductive lasso, between conductive lasso and conducting wire slot
Area is sufficiently large, to keep the resistance of electric wire and conducting wire slot connecting portion small, fever is few, and ensure that ammeter uses the longevity
Life；In addition, inwardly top extension is clamped on electric wire outer wall for the interior card end being located in interior flange collar, electric wire is in insertion conductive sleeve
It is not easy to deviate from after circle.
When push plate promotion inward-facing along slope, push plate can move up simultaneously, so that plate pushes up described lead
Electric lasso is allowed to compress upwards；It can become to making plate gradually slid inward while screwing lock-screw, until the positioning card in push plate
When head is with locating groove snap-fit, conductive sleeve circle is substantially at compressed stable state, and electric wire will not be from conductive lasso
It is detached from, then continues to tighten lock-screw, push against lock-screw end and electric wire.
Due to forming reinforcing rib on riser, on the one hand make that riser portion can do it is relatively thin save material, on the other hand
Due to wire thicknesses difference, when screwing lock-screw, reinforcing rib part is easier to generate suitable deformation, so that locking
Screw front end can well be contacted with electric wire side wall.
When the contact surface of inner connecting end and connecting plate is plane, it is ensured that contact resistance between the two is sufficiently small,
So higher to the requirement on machining accuracy of contact surface, processing cost is also high, thus formed in inner connecting end multiple flange collars with connect
Plate offsets, although contact area is smaller, is not that absolutely smooth flange collar is easier to generate deformation when tightening lock-screw, makes
It is well contacted between flange collar and connecting plate, guarantees that there is lesser contact resistance between the two, reduce the fever of the link position
Amount.
The mutual inductor is detachable, so that the first outlet terminal is directly connect with relay, not extra connection
Node reduces the resistance value of the first outlet terminal part, reduces calorific value, extends the service life of ammeter.
Baseplane since mutual inductor to be parallel to electric energy meter pedestal is arranged on mutual inductor mounting portion, so that mutual inductor
The magnet institute in the iron core that the first iron core, the second iron core are constituted generated magnetic field and electric energy meter bottom when primary current passes through
The magnetic field of generation is mutually perpendicular to, and magnetic field caused by the magnet of electric energy meter bottom would not interfere the first iron core and the second iron core
The generated magnetic field when primary current passes through can resist external magnetic field in this way, the mutual inductor in electric energy meter need not have can
Interference to mutual inductor, it is ensured that the mutual inductor in electric energy meter ensure that the metering of electric energy meter to the normal sample of primary current
Precision；On the one hand, the manufacture difficulty of mutual inductor is reduced, on the other hand, also reduces the cost and weight of electric energy meter, to electricity
The installation and use of energy table are brought conveniently.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is exploded view of the invention.
Fig. 3 is junction block, the first input terminal, the first outlet terminal, the second input terminal, the second outlet terminal, mutual inductance
The structural schematic diagram of device, connection sheet.
Fig. 4 is the first input terminal, the first outlet terminal, the second input terminal, the second outlet terminal, mutual inductor, connection
The exploded view of piece.
Fig. 5 is the cross-sectional view of the first input terminal.
Fig. 6 is the exploded view of the first input terminal.
Fig. 7 is the structural schematic diagram of conductive lasso.
Fig. 8 is the portion the A enlarged drawing of Fig. 7.
Fig. 9 is the structural schematic diagram of the first outlet terminal.
Figure 10 is the structural schematic diagram of the second input terminal.
Figure 11, Figure 12 are the structural schematic diagrams of push plate.
Figure 13, Figure 14 are the exploded views of mutual inductor.
Figure 15 is the schematic cross-sectional view of the first input terminal part in embodiment 2.
Figure 16 is the structure that the lock-screw of the second input terminal, the second outlet terminal and connection sheet is connected in embodiment 3
Schematic diagram.
Figure 17 is the decomposition texture cross-sectional view of lock-screw in Figure 16.
1, lower case；11, seat board；12, it buckles；2, upper housing；3, junction block；31, strip；32, card slot；33, terminal is inserted
Mouthful；34, preceding notch；35, incoming line；4, relay；5, mutual inductor；51, main part；511, U-shaped mouth；512, interface；513,
First iron core；514, deformation gap；515, clamp；52, plug division；520, bayonet；521, end location-plate；522, the second iron
Core；61, the first input terminal；62, the first outlet terminal；63, the second input terminal；64, the second outlet terminal；601, interior connection
End；601a, mutual inductor mounting portion；601b, transition connection portion；602, outer connecting pin；603, conducting wire slot；604, push plate socket；
605, slope；606, locating groove；607, screw hole a；608, screw hole b；609, flange collar；65, connection sheet；66, push plate；
661, vertical version；662, screw perforation；663, plate；664, positioning chuck；665, reinforcing rib；67, conductive lasso；670, screw holds
Mouthful；671, lower retaining ring；672, outer flange collar；673, interior flange collar；674, longitudinal strip shape gob；675, interior card；676, lateral port；68,
Lock-screw；681, inner bolt；682, cone screw.
Specific embodiment
Embodiment 1
A specific embodiment of the invention is made a detailed explanation below according to attached drawing.
According to Fig. 1 to Figure 14, a kind of electric energy meter described in the present embodiment, including lower case 1, it is connected to lower case 1
On upper housing 2, junction block 3, and be mounted on the intracorporal relay of lower casing 4 and mutual inductor 5；
The lower case lower end forms seat board 11；The junction block 3 is mounted on seat board 11；It is located on the seat board and connects
Two side position of line seat is fixedly connected with buckle 12.
The 3 two sides side wall of junction block is fixedly connected with and the strip 31 being buckled to fix；The junction block is logical
It crosses buckle 12 to be fixedly connected on seat board 11 with strip 31, reduces difficulty when installation.
The each side wall upper part of the junction block 3 forms card slot 32；There are four terminals to insert for the junction block upper surface molding
Mouth 33；There are four preceding notches 34 for the junction block front end face molding；The junction block lower end surface corresponds to the position of each terminal insertion ports
It sets and forms incoming line 35；The preceding notch of corresponding position, terminal insertion ports and incoming line communicate on the junction block 3；The wiring
The card slot of seat front end face and upper mounting shell lower part are mating, and the card slot on junction block two sidewalls top and lower case lower part are inserted
Cooperation is connect, by the way that this configuration simplifies the installations of junction block, and junction block and upper mounting shell are enhanced simultaneously, between lower case
Stability.
Four terminal insertion ports are successively plugged with the first input terminal 61, the first outlet terminal 62, the second inlet wire from left to right
Terminal 63 and the second outlet terminal 64.
First input terminal 61, the first outlet terminal 62 are connect with relay 4 respectively.
It is fixed by lock-screw 68 between second input terminal, 63 top and 64 top of the second outlet terminal
It is connected with connection sheet 65.
First input terminal includes inner connecting end 601, and is molded over the outer connecting pin 602 of inner connecting end lower end；
The outer connecting pin lower end forms conducting wire slot 603；Conductive lasso 67 is connected in the conducting wire slot.
The conduction lasso 67 includes multiple interior flange collars 673 being placed equidistant with along axial direction, and is molded over adjacent interior up and down
Outer flange collar 672 between flange collar；The conduction lasso lower sides form screw and hold hole 670；The conduction lasso lower end is solid
Surely it is connected with lower retaining ring 671.
Multiple longitudinal strip shape gobs 674 are circumferentially uniformly formed in each outer flange collar and interior flange collar along outer flange collar；Each convex
3 ~ 5 interior cards 675 are circumferentially uniformly formed on circle；The interior card is located between two neighboring longitudinal strip shape gob；It is described
Interior flange collar is upper to form lateral port 676 above interior card；The conduction lasso interpolation sets electric wire, when conductive lasso is by axis
To when squeezing, interior flange collar middle part position inwardly generates deformation and clamps electric wire, while the outside deformation of generation of outer flange collar middle part position is tight
It is against on conducting wire slot inner wall, so that the contact area between electric wire and conductive lasso, between conductive lasso and conducting wire slot is equal
Sufficiently large, to keep the resistance of electric wire and conducting wire slot connecting portion small, fever is few, ensure that the service life of ammeter；In addition,
Inwardly top extends and is clamped on electric wire outer wall for interior card end in interior flange collar, electric wire after being inserted into conductive lasso not
It is easy abjection.
First outlet terminal includes inner connecting end 601 and outer connecting pin 602；The lower end of the inner connecting end integrally connects
Be connected to the mutual inductor mounting portion 601a with the lower case plane perpendicular, the mutual inductor mounting portion 601a other end be connected with
Lower case bottom surface transition connection portion 601b disposed in parallel, the other end of transition connection portion 601b and outer connecting pin integrally connected；
The outer connecting pin lower end forms conducting wire slot 603；Conductive lasso 67 is installed in the conducting wire slot.
Second input terminal includes inner connecting end 601, is molded over the outer connecting pin 602 of interior linkage section lower end；It is described
Inner connecting end top forms screw hole b608；Periphery in the inner connecting end positioned at screw hole b uniformly forms multiple convex
Circle 609；The outer connecting pin lower end forms conducting wire slot 603；Conductive lasso 67 is installed in the conducting wire slot.
When the contact surface of inner connecting end and connecting plate is plane, it is ensured that contact resistance between the two is sufficiently small,
So higher to the requirement on machining accuracy of contact surface, processing cost is also high, thus formed in inner connecting end multiple flange collars with connect
Plate offsets, although contact area is smaller, is not that absolutely smooth flange collar is easier to generate deformation when tightening lock-screw, makes
It is well contacted between flange collar and connecting plate, guarantees that there is lesser contact resistance between the two, reduce the fever of the link position
Amount.
Second outlet terminal is identical as the second input terminal structure.
The lower part of first input terminal 61, the first outlet terminal 62, the second input terminal 63, the second outlet terminal 64
It is connected separately with push plate 66；The lower retaining ring of the push plate upper end and the conductive lasso lower end offsets.
Each outer connecting pin lower front side is separately formed the push plate socket 604 with the cooperation positioning of push plate 66；It is each
The push plate socket bottom surface is slope 605；It is located at the position above push plate socket on each outer connecting pin to form
Screw hole a607.
The push plate 66 include riser 661, and be molded over two side lower part of riser inner face and perpendicular to riser setting
Plate 663, the plate lower end surface are to cooperate the inclined-plane being slidably connected with the slope；Corresponding outer connecting pin on the riser
The position of screw hole a forms screw perforation 662；The two sides that the riser outer end face is located at screw perforation form long along riser
Spend the reinforcing rib 665 of direction setting.
Lock-screw is connected in the screw perforation；In each outer connecting pin positioned at slope inner end position at
Type has locating groove 606；The plate lower end surface forms the positioning chuck 664 with locating groove cooperation positioning.
When push plate promotion inward-facing along slope, push plate can move up simultaneously, so that plate pushes up described lead
Electric lasso is allowed to compress upwards；It can become to making plate gradually slid inward while screwing lock-screw, until the positioning card in push plate
When head is with locating groove snap-fit, conductive sleeve circle is substantially at compressed stable state, and electric wire will not be from conductive lasso
It is detached from, then continues to tighten lock-screw, push against lock-screw end and electric wire.
Due to forming reinforcing rib on riser, on the one hand make that riser portion can do it is relatively thin save material, on the other hand
Due to wire thicknesses difference, when screwing lock-screw, reinforcing rib part is easier to generate suitable deformation, so that locking
Screw front end can well be contacted with electric wire side wall.
The mutual inductor includes main part 51 and plug division 52；The main part is integrally U-shaped, is formed among main part
One U-shaped mouth 511, there are two interface 512, two interfaces are located along the same line the molding of main part both ends.
The plug division is plugged between two interfaces；The mutual inductor is mounted on the interior of the first outlet terminal and connects
It connects on end, the mutual inductor installation position is in the perforation that U-shaped mouth and plug division are formed.
The main part includes the shell of ambroin material, installs the first iron core 513 of U-shaped inside the shell, with
And it is wound on the winding outside the first iron core, the shell is formed by the halfbody snapping of two symmetrical configurations.
The plug division includes the shell of ambroin material and the second iron core for being mounted on the intracorporal bar shaped of shell
522, the side at second iron core both ends is exposed outside shell so that plug division be installed on main part after the second iron core and the
One iron core surrounds the iron core-closed of a rectangle.
It is located on inner wall of the interface far from the first core ends on the shell and forms clamp 515, and shell is upper
Deformation gap 514 is formed in the side of clamp；The card for cooperating positioning clamping with the clamp is formed on the housing exterior walls
Mouth 520；One end of the shell forms the end location-plate 521 that area is greater than the interface.
The mutual inductor is detachable, so that the first outlet terminal is directly connect with relay, not extra connection
Node reduces the resistance value of the first outlet terminal part, reduces calorific value, extends the service life of ammeter.
Baseplane since mutual inductor to be parallel to electric energy meter pedestal is arranged on mutual inductor mounting portion, so that mutual inductor
The magnet institute in the iron core that the first iron core, the second iron core are constituted generated magnetic field and electric energy meter bottom when primary current passes through
The magnetic field of generation is mutually perpendicular to, and magnetic field caused by the magnet of electric energy meter bottom would not interfere the first iron core and the second iron core
The generated magnetic field when primary current passes through can resist external magnetic field in this way, the mutual inductor in electric energy meter need not have can
Interference to mutual inductor, it is ensured that the mutual inductor in electric energy meter ensure that the metering of electric energy meter to the normal sample of primary current
Precision；On the one hand, the manufacture difficulty of mutual inductor is reduced, on the other hand, also reduces the cost and weight of electric energy meter, to electricity
The installation and use of energy table are brought conveniently.
Embodiment 2
In conjunction with Figure 15, the present embodiment compared with Example 1, also makes following improvement: being connected to the first input terminal, first
Outlet terminal, the second input terminal along axial direction form internal thread hole on the lock-screw 68 on the second outlet terminal, it is described in
Threaded hole internal screw thread is connected with inner bolt 681.
After in the conductive lasso in electric wire insertion conducting wire slot, lock-screw 68 is screwed first, and push plate clamping is made
The conductive tight electric wire of lasso compression clip, then screws inner bolt, pushes against inner bolt front end and electric wire outer wall.
Compared to embodiment 1, the lock-screw of the present embodiment is shorter, i.e., lock-screw front end is not direct with electric wire outer wall phase
It supports, and is pushed against by inner bolt and electric wire outer wall to fix electric wire, not will lead to lock-screw front end when electric wire is thicker in this way
It offsets too early with electric wire and cannot continue to screw in and lead to that push plate cannot be shifted onto position.
The lock-screw of the present embodiment is not direct conversely speaking, and line contacts, is only used for locking push plate, can ensure that in this way
Electric conductivity between conductive lasso and electric wire and conducting wire slot inner wall not will receive the influence of wire thicknesses.
In addition, the conductive lasso is made of memorial alloy, and after the molding of longitudinal strip shape gob of conductive lasso, leading
The surface of electric lasso is coated with silver material layer, silver material layer with a thickness of the 1/3 of memorial alloy thickness；It is described conduction lasso it is upper in
The medium position of longitudinal strip shape gob length direction with a thickness of the 2/3 of other part thickness.In this way by the electric current of electric wire compared with
When big, Wire temperature can be increased, the heated deformation for making to generate compression direction of the conductive lasso of memorial alloy material, so that outer flange collar
Pressure increase between conducting wire slot, between interior flange collar and electric wire outer wall, contact resistance reduce, at the same conductive lasso it is upper in
The relatively thin contact area made between conductive lasso and conducting wire slot, electric wire outer wall of the medium position of longitudinal strip shape gob length direction
Increase, similarly serves to favor reduction contact resistance, avoid outer connection end part excessive heating due to contact resistance is excessive.
Embodiment 3
In conjunction with Figure 16 and Figure 17, the present embodiment makes following improvement on the basis of embodiment 1 or 2: second inlet wire
Terminal, the second outlet terminal inner connecting end and connection sheet between connected by lock-screw 68, along axis on the lock-screw 68
To forming internal thread hole, and internal thread hole is front wide and rear narrow bellmouth, and the screw thread in internal thread hole is left hand thread, locking
The screw thread of screw outer wall is right-handed thread；Circumferentially equidistantly offer 4 strip crevices on the lock-screw, strip crevice from
The nut bottom of lock-screw extends to lock-screw front end；The internal thread hole internal screw thread is connected with a front wide and rear narrow cone
Shape screw 682, cone screw outer wall corresponding shaping have left hand thread.
The cone screw is connected on lock-screw in advance, in use, first passing through lock-screw logical in connection sheet
Then hole is threadedly coupled with inner connecting end, after lock-screw screws in place, then continue to screw cone screw clockwise, in this way
Cone screw can be mobile towards lock-screw rear end, make screw hole in the outside distending of lock-screw outer wall and inner connecting end and
Through-hole wall in connection sheet is fitted close, and contact resistance is made to reach minimum.
In addition, cone screw is located at lock-screw front end when being in initial position, and the nut far from lock-screw, Bu Huiying
Ring the locking of lock-screw.
Claims (1)
1. a kind of electric energy meter, it is characterised in that: including lower case, the upper housing being connected in lower case, junction block, and installation
In the intracorporal relay of lower casing and mutual inductor；
The lower case lower end forms seat board；The junction block is mounted on seat board；It is located at junction block two sides on the seat board
Position is fixedly connected with buckle；
Junction block two sides side wall is fixedly connected with and the strip being buckled to fix；
The each side wall upper part of junction block forms card slot；There are four terminal insertion ports for the junction block upper surface molding；It is described
There are four preceding notches for the molding of junction block front end face；The position that the junction block lower end surface corresponds to each terminal insertion ports forms inlet wire
Mouthful；The preceding notch of corresponding position, terminal insertion ports and incoming line communicate on the junction block；
Four terminal insertion ports are successively plugged with the first input terminal from left to right, the first outlet terminal, the second input terminal, and
Second outlet terminal；
First input terminal, the first outlet terminal are connect with relay respectively；
Connection is fixedly connected with by lock-screw between second input terminal top and second outlet terminal top
Piece；
First input terminal includes inner connecting end, and is molded over the outer connecting pin of inner connecting end lower end；First end of incoming cables
The outer connecting pin lower end of son forms conducting wire slot；Conductive lasso is connected in the conducting wire slot；
The conduction lasso includes multiple interior flange collars being placed equidistant with along axial direction, and is molded between adjacent flange collar interior up and down
Outer flange collar；The conduction lasso lower sides form screw and hold hole；The conduction lasso lower end is fixedly connected with lower retaining ring；
Multiple longitudinal strip shape gobs are circumferentially uniformly formed in each outer flange collar and interior flange collar along outer flange collar；Along week in each interior flange collar
3 ~ 5 interior cards are formed to uniform；The interior card is located between two neighboring longitudinal strip shape gob；The interior flange collar it is upper in
Lateral port is formed above interior card；
First outlet terminal includes inner connecting end and outer connecting pin；The lower end one of the inner connecting end of first outlet terminal
Body is connected with the mutual inductor mounting portion with the lower case plane perpendicular, and the mutual inductor mounting portion other end is connected with and lower casing
Body bottom surface transition connection portion disposed in parallel, the other end of transition connection portion and the outer connecting pin of the first outlet terminal integrally connect
It connects；The outer connecting pin lower end of first outlet terminal forms conducting wire slot；Conductive lasso is installed in the conducting wire slot；
Second input terminal includes inner connecting end, is molded over the outer connecting pin of interior linkage section lower end；Second input terminal
The inner connecting end top forms screw hole b；Periphery in the inner connecting end of second input terminal positioned at screw hole b is equal
It is even to form multiple flange collars；The outer connecting pin lower end of second input terminal forms conducting wire slot；In the conducting wire slot
Conductive lasso is installed；
Second outlet terminal is identical as the second input terminal structure；
First input terminal, the first outlet terminal, the second input terminal, the second outlet terminal lower part be connected separately with and push away
Plate；The lower retaining ring of the push plate upper end and the conductive lasso lower end offsets；
Each outer connecting pin lower front side is separately formed the push plate socket with push plate cooperation positioning；Each push plate is inserted
Mouth bottom surface is slope；It is located at the position above push plate socket on each outer connecting pin and forms screw hole a；
The push plate includes riser, and the plate for being molded over two side lower part of riser inner face and being arranged perpendicular to riser, described
Plate lower end surface is to cooperate the inclined-plane being slidably connected with the slope；The position of corresponding outer connecting pin screw hole a on the riser
It sets and forms screw perforation；The two sides that the riser outer end face is located at screw perforation form adding along the setting of riser length direction
Strengthening tendons；
Lock-screw is connected in the screw perforation；
Inner end position in each outer connecting pin positioned at slope forms locating groove；The plate lower end surface forms
With the positioning chuck of locating groove cooperation positioning；
The mutual inductor includes main part and plug division；The main part is integrally U-shaped, and a U-shaped is formed among main part
Mouthful, there are two interface, two interfaces are located along the same line the molding of main part both ends；
The plug division is plugged between two interfaces；The mutual inductor is mounted on the inner connecting end of the first outlet terminal
On, the mutual inductor installation position is in the perforation that U-shaped mouth and plug division are formed；
The main part includes the shell of ambroin material, installs the first iron core of U-shaped inside the shell, and is wound on
Winding outside first iron core, the shell are formed by the halfbody snapping of two symmetrical configurations；
The plug division includes the shell of ambroin material and the second iron core for being mounted on the intracorporal bar shaped of shell, and described
The side at two iron core both ends is exposed outside shell, is surrounded so that plug division is installed on main part the second iron core and the first iron core later
One rectangle it is iron core-closed；
It is located on inner wall of the interface far from the first core ends on the shell and forms clamp, and positioned at clamp on shell
Side forms deformation gap；The bayonet for cooperating positioning clamping with the clamp is formed on the housing exterior walls；The shell
One end form area be greater than the interface end location-plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610756293.5A CN106370896B (en) | 2016-08-29 | 2016-08-29 | A kind of electric energy meter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610756293.5A CN106370896B (en) | 2016-08-29 | 2016-08-29 | A kind of electric energy meter |
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| CN106370896A CN106370896A (en) | 2017-02-01 |
| CN106370896B true CN106370896B (en) | 2019-04-05 |
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| CN201610756293.5A Active CN106370896B (en) | 2016-08-29 | 2016-08-29 | A kind of electric energy meter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110225686A (en) * | 2018-03-02 | 2019-09-10 | 深圳智链物联科技有限公司 | The assembling structure and charging pile of wiring board and air switch |
| CN108535523B (en) * | 2018-04-03 | 2020-04-10 | 宁夏隆基宁光仪表股份有限公司 | Improved electric energy meter |
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| US5027056A (en) * | 1990-04-05 | 1991-06-25 | General Electric Company | Multifunction register enclosure for energy meter |
| CN202693646U (en) * | 2012-05-22 | 2013-01-23 | 深圳市航天泰瑞捷电子有限公司 | Wiring device for electric energy meter |
| CN203191419U (en) * | 2013-05-03 | 2013-09-11 | 厦门宏发电力电器有限公司 | Intelligent electricity meter with diamagnetic structured electromagnetic current transformers |
| CN103424588A (en) * | 2013-08-21 | 2013-12-04 | 杭州海兴电力科技股份有限公司 | Electric energy meter connection terminal kit |
| CN103616538A (en) * | 2013-12-20 | 2014-03-05 | 华威博奥电力设备有限公司 | Combined module for plug electric connection of intelligent electricity meter |
| CN205049635U (en) * | 2015-10-27 | 2016-02-24 | 浙江光亮电气有限公司 | Warhead formula ammeter connects spigot |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8700224B2 (en) * | 2009-06-25 | 2014-04-15 | Renewable Energy Technology Group Ltd. (RETG) | System for a single point plug-in, connection of any combination of electric energy supply sources combined with smart load management and control of both supply and consumption of electric energy by a home or small business |
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|---|---|---|---|---|
| US5027056A (en) * | 1990-04-05 | 1991-06-25 | General Electric Company | Multifunction register enclosure for energy meter |
| CN202693646U (en) * | 2012-05-22 | 2013-01-23 | 深圳市航天泰瑞捷电子有限公司 | Wiring device for electric energy meter |
| CN203191419U (en) * | 2013-05-03 | 2013-09-11 | 厦门宏发电力电器有限公司 | Intelligent electricity meter with diamagnetic structured electromagnetic current transformers |
| CN103424588A (en) * | 2013-08-21 | 2013-12-04 | 杭州海兴电力科技股份有限公司 | Electric energy meter connection terminal kit |
| CN103616538A (en) * | 2013-12-20 | 2014-03-05 | 华威博奥电力设备有限公司 | Combined module for plug electric connection of intelligent electricity meter |
| CN205049635U (en) * | 2015-10-27 | 2016-02-24 | 浙江光亮电气有限公司 | Warhead formula ammeter connects spigot |
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| Publication number | Publication date |
|---|---|
| CN106370896A (en) | 2017-02-01 |
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Inventor after: Wang Yueyuan Inventor after: Luo Wenping Inventor after: Fan Songming Inventor before: Wang Yueyuan |
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Effective date of registration: 20190312 Address after: 523000 Haibin Industrial Zone, Zhongnan Road, Chang'an Town, Dongguan City, Guangdong Province, No. 2, 201 Applicant after: Dongguan Guojun Precision Mould Co., Ltd. Address before: 523118 Niushan Rich Industrial Park, Dongcheng District, Dongguan City, Guangdong Province Applicant before: Wang Yueyuan |
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Effective date of registration: 20191125 Address after: No.1 Workshop (Huake) 6-C, Gaofa Oriental Science Park, Qiaocheng North Road, Shahe street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Guangdong Haoning Da Industrial Co., Ltd. Address before: 523000 Haibin Industrial Zone, Zhongnan Road, Chang'an Town, Dongguan City, Guangdong Province, No. 2, 201 Patentee before: Dongguan Guojun Precision Mould Co., Ltd. |