CN110379682A - A kind of breaker of plastic casing - Google Patents
A kind of breaker of plastic casing Download PDFInfo
- Publication number
- CN110379682A CN110379682A CN201910720184.1A CN201910720184A CN110379682A CN 110379682 A CN110379682 A CN 110379682A CN 201910720184 A CN201910720184 A CN 201910720184A CN 110379682 A CN110379682 A CN 110379682A
- Authority
- CN
- China
- Prior art keywords
- phase
- breaker
- circuit
- plastic casing
- phase circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052802 copper Inorganic materials 0.000 claims abstract description 39
- 239000010949 copper Substances 0.000 claims abstract description 39
- 238000005452 bending Methods 0.000 claims abstract description 10
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000000969 carrier Substances 0.000 abstract 1
- 238000012544 monitoring process Methods 0.000 description 7
- 208000025274 Lightning injury Diseases 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 239000002360 explosive Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Abstract
The present invention relates to a kind of breaker of plastic casing, including the surge protection module being arranged in upper cover and power line carrier module, the surge protection module is arranged above handle, the side of handle is arranged in the power line carrier module, the surge protection module and power line carrier module are electrically connected respectively on terminal plate, A phase conducting copper is provided on A phase circuit, B phase conducting copper is provided on B phase circuit, C phase conducting copper is provided on C phase circuit, the A phase conducting copper, B phase conducting copper, the structure of C phase conducting copper is consistent, one end of A phase conducting copper connects moving contact, the other end of A phase conducting copper is connected on connecting terminal, a Z-shaped bending part is provided on A phase conducting copper, the current transformer is sleeved on bending part.The present invention reduces the volume of breaker, and the function that breaker of plastic casing is communicated with lightning protection, long range carriers by changing the structure of conducting system.
Description
Technical field
The present invention relates to low-voltage electrical field more particularly to a kind of breaker of plastic casing.
Background technique
Breaker of plastic casing can play the role of real-time guard to power circuit, mechanical equipment, when route and equipment overload
Or short circuit and its when under-voltage fault can automatic shutdown circuit, breaker of plastic casing is typically mounted in power distribution cabinet, plastic housing open circuit
The side of device is electrically connected on the busbar exported by transformer, and the other side of breaker of plastic casing is electrically connected to subscriber household route.
There are following defects for existing breaker of plastic casing: the structure design of the conducting system of 1. breaker of plastic casing does not conform to
Reason, it is larger that conducting system occupies circuit breaker internal space, so that there are volumes is big, performance is insecure lacks for the breaker of plastic casing
It falls into；2. the moment extra-high voltage for generation of being struck by lightning tends not to release through transformer grounding progress charge when power distribution cabinet is by being struck by lightning
It puts, can directly lead to subscriber household instead, that causes the electrical appliance of subscriber household side burns damage；3. breaker of plastic casing lacks
With the ability with terminal equipment in communication, the specific location that failure occurs can not be judged at the first time in line failure, greatly
Maintenance difficulty is increased greatly.On the whole, the present invention is directed to design a kind of breaker of plastic casing small in size, and above-mentioned plastic housing is solved
Defect existing for breaker.
Summary of the invention
In view of this, the purpose of the present invention is to provide it is a kind of it is small in size, performance safety is reliable, band surge protection and ground connection
The breaker of plastic casing of protection, and energy and terminal equipment in communication, realize the monitoring to breaker of plastic casing, reach breaker of plastic casing intelligence
The purpose of energy Internet of Things.
In order to achieve the goal above, the present invention uses such a breaker of plastic casing, including pedestal, middle seat, upper cover, operation
Mechanism, moving contact, static contact, the terminal plate being arranged in middle seat, the conducting system being arranged in pedestal, the conducting system packet
A phase circuit, B phase circuit, C phase circuit, N phase circuit are included, A phase circuit, B phase circuit, C phase are provided with Current Mutual Inductance on circuit
Device, the pedestal are mounted on guide rail, and the operating mechanism includes handle, and handle extends to upper lid surface, the plastic housing open circuit
Device further includes the surge protection module being arranged in upper cover and power line carrier module, and the surge protection module is arranged on handle
The side of handle is arranged in side, the power line carrier module, and the surge protection module and power line carrier module are electrically connected
Onto terminal plate, it is provided with A phase conducting copper on A phase circuit, B phase conducting copper, C phase circuit are provided on B phase circuit
On be provided with C phase conducting copper, the A phase conducting copper, B phase conducting copper, the structure of C phase conducting copper are consistent, and A phase is conductive
One end of copper bar connects moving contact, and the other end of A phase conducting copper is connected on connecting terminal, is provided on A phase conducting copper
One Z-shaped bending part, the current transformer are sleeved on bending part.
The terminal plate of above-mentioned surge protection module and breaker of plastic casing connection, when the power distribution cabinet where breaker of plastic casing by
When lightning stroke, surge protection module can absorb surge current caused by lightning stroke, can be effectively protected the electric appliance of subscriber household side not
It is damaged, the terminal plate connection of power line carrier module and breaker of plastic casing, power line carrier module passes through the electricity in breaker of plastic casing
The electric signal of different frequency is coupled in the line of force, electric signal is with power line transmission to terminal monitoring equipment, terminal monitoring equipment root
It realizes according to high-frequency signal to the small-scale power monitoring of each breaker of plastic casing, makes breaker of plastic casing itself and terminal monitoring equipment
Networking, surge protection module and power line carrier module are installed in upper cover, are effectively utilized the height of upper cover, and be arranged the bottom of at
The conducting system of seat is conductive in A phase conducting copper, B phase conducting copper, C phase by being arranged current transformer using horizontal type structure
On copper bar, the whole height of current transformer is effectively shortened, reduces the space that current transformer occupies, to effectively reduce
The height of the breaker of plastic casing pedestal.Breaker of plastic casing of the present invention have the advantages that in structure it is small in size, rationally distributed,
The functionally technical advantage with lightning protection, telecommunication.
The present invention is further arranged to terminal plate and is electrically connected respectively with A phase circuit, B phase circuit, C phase circuit, N phase circuit,
It is formed with more sheets of conductive intermediate plate on terminal plate, forms more sheets of conductive inserted sheet on the surge protection module, surge protection module is logical
The cooperation for crossing conductive insert and conductive clip is electrically connected with terminal plate formation.
Above-mentioned surge protection module is connected on breaker of plastic casing by plug, facilitate breaker of plastic casing assembly and after
Continuous replacement.
The side that the present invention is further arranged to terminal plate is provided with ground strip, forms locating slot on the middle seat, described
One end of ground strip is electrically connected with terminal plate, and the other end of ground strip is arranged in locating slot, and the lower section of the locating slot is formed
Through the ground hole of middle seat and pedestal, earthing screw is provided on the other end of the ground strip, the earthing screw successively passes through
It is fixed on guide rail after wearing ground strip, ground hole, the guide rail is connected to the earth, and the surge protection module and terminal plate are logical
It crosses ground strip and realizes common ground connection.
Ground wire on above-mentioned breaker of plastic casing passes through the guidance of earth plate and earthing screw, is fixedly attached on guide rail, so
Connect the ground connection for realizing breaker of plastic casing over the ground by guide rail afterwards, the transient high-current for generating lightning stroke or line fault can be direct
The earth is discharged, avoids breaker of plastic casing itself from damaging, while protecting subscriber household electric appliance unaffected, and such ground connection side
Formula structure is simple, easy for installation, at low cost, and installation personnel only needs for earthing screw to be connected on guide rail across ground strip.
It includes multiple fuse FUSE, multiple lightning protection varistor SPD that the present invention, which is further arranged to surge protection module,
And one end ground line of gas-discharge tube GDT, the gas-discharge tube GDT, the other end in A phase circuit and gas-discharge tube GDT
Between be connected between fuse FUSE and lightning protection varistor SPD, B phase circuit and the other end of gas-discharge tube GDT and connect
Have and is connected with fuse between fuse FUSE and lightning protection varistor SPD, C phase circuit and the other end of gas-discharge tube GDT
Lightning protection varistor is connected between FUSE and lightning protection varistor SPD, N phase circuit and the other end of gas-discharge tube GDT
SPD。
Above-mentioned breaker of plastic casing is being struck by lightning, and setting connects anti-between each phase circuit (A, B, C, N phase) and ground wire
When transient voltage is higher than certain value, resistance can decline rapidly that high current is connected thunder varistor SPD；Each phase circuit
The fuse FUSE connected between (A, B, C phase) and ground wire by lightning protection varistor SPD electric current is excessive and the duration
When too long, fuse FUSE can fuse；Gas-discharge tube GDT is to increase above its tube interior gas that discharges in its both end voltage
It is connected when dielectric strength, sharing a gas-discharge tube GDT is that the lightning stroke voltage of each phase is added in its both ends, accelerates gas and puts
The conducting of fulgurite GDT.For such surge protection module when breaker of plastic casing is by being struck by lightning, no matter which phase circuit generates surge
Electric current sponges the surge current that most of lightning stroke generates by lightning protection varistor SPD first, then remaining surge electricity
Stream is discharged into the earth by gas-discharge tube GDT, and surge protection module is made to complete the release step by step to lightning stroke energy.
It includes the iron core being sleeved on bending part, two coil windings, institute that the present invention, which is further arranged to current transformer,
The iron core stated is in box shape, and two coil windings are symmetricly set on iron core.
The height of conducting system is greatly reduced in the horizontal lying-type design of above-mentioned current transformer, optimizes inside breaker of plastic casing
Structure.
The present invention is further arranged to surge protection module and includes surge protection module shell and be arranged in surge protection mould
Wiring board in block shell, the bottom of the conductive insert is fixed to extend to surge guarantor in the circuit board, at the top of conductive insert
The outside for protecting module housing, forms circular hole on the conductive insert, and the conductive clip includes first clamping piece and second intermediate plate, the
The medial surface of one intermediate plate and the medial surface of second intermediate plate form symmetrical salient point, and first clamping piece is close to the side of conductive insert
Close to the side of conductive insert, fold forms guide portion outward with second intermediate plate, and the conductive insert is convex by circular hole and two
The cooperation of point is connect with conductive clip.
Above-mentioned conductive insert is connected between first clamping piece and second intermediate plate under the guiding role of guide portion, in salient point
It is electrically connected with realizing to consolidate under the cooperation of circular hole, improves the reliability of surge protection module connection.
The present invention is further arranged to locating slot and forms resigning mouthful close to the side of terminal plate, and the ground strip includes connection
Portion, the head and the tail both ends of the interconnecting piece extend to form the first folding portion and perpendicular to interconnecting piece to the two sides of interconnecting piece respectively
Two folding portions, first folding portion are arranged in resigning mouthful and are electrically connected with terminal plate, and the second folding portion setting is positioning
The bottom of slot, earthing screw are connected in the second folding portion.
The shell of above-mentioned breaker of plastic casing is the resigning that ground strip has been cooked certain space, facilitates the installation of ground strip, is grounded
Earthing potential inside breaker of plastic casing is connect by piece with the earth.
The side that the present invention is further arranged to upper cover forms fluting, and the fluting face surge protection module is described to open
Sealing plate is provided in slot.
Above-mentioned sealing plate makes surge protection module be isolated from the outside world.
The present invention is further arranged to form mounting groove on lid, and the bottom of mounting groove offers connection jaws, the wiring
The position of face connection jaws forms junction block on plate, and the power line carrier module is arranged in mounting groove, and power line carrier module is logical
It crosses junction block to be electrically connected with terminal plate, the surface of the power line carrier module is provided with cover board, and the cover board is fixed on lid.
Above-mentioned junction block facilitates being electrically connected for power line carrier module and terminal plate, cover board make power line carrier module and it is external every
From the reliability that raising breaker of plastic casing uses.
It includes that circuit, signal coupling circuit, the high frequency occur for high frequency that the present invention, which is further arranged to power line carrier module,
Circuit occurs to connect with signal coupling circuit, high frequency the high-frequency signal that circuit generates and is coupled to by the signal coupling circuit occurs
On upper A phase circuit or B phase circuit or C phase circuit.
Above-mentioned radio-frequency generator exports high-frequency signal, due to having the very big loss of signal, power carrier between three-phase power line
Signal can only transmit in single-phase electricity line, so high-frequency signal is coupled to the A phase of breaker of plastic casing by signal coupling circuit
Or in B phase or C phase, to realize the remote transmission of carrier signal, terminal monitoring equipment is realized according to high-frequency signal to each
The small-scale power monitoring of breaker of plastic casing can rapidly and accurately judge the position of faulty line in line failure, from
And improve overhaul efficiency.
Detailed description of the invention
Fig. 1 is breaker of plastic casing explosive view of the embodiment of the present invention.
Fig. 2 is conducting system perspective view of the embodiment of the present invention.
Fig. 3 is breaker of plastic casing cross-sectional view of the embodiment of the present invention.
Fig. 4 is breaker of plastic casing explosive view of the embodiment of the present invention.
Fig. 5 is breaker of plastic casing explosive view of the embodiment of the present invention.
Fig. 6 is surge protection module explosive view of the embodiment of the present invention.
Fig. 7 is surge protection module of the embodiment of the present invention and conductive clip perspective view.
Fig. 8 is that breaker of plastic casing of the embodiment of the present invention removes main view after upper cover.
Fig. 9 be in Fig. 8 along the sectional view of A-A.
Figure 10 is ground strip perspective view of the embodiment of the present invention.
Figure 11 is conductive insert of the embodiment of the present invention and conductive clip perspective view.
Figure 12 is power line carrier module functional-block diagram of the embodiment of the present invention.
Figure 13 is surge protection module circuit diagram of the embodiment of the present invention.
Specific embodiment
As shown in Figure 1-3, the present invention is a kind of breaker of plastic casing, including it is pedestal 1, middle seat 2, upper cover 3, operating mechanism 4, dynamic
Contact 51, static contact 52, the terminal plate 6 being arranged in middle seat 2, the conducting system 7 being arranged in pedestal 1, the conducting system 7
Including A phase circuit 71, B phase circuit 72, C phase circuit 73, N phase circuit 74, A phase circuit 71, B phase circuit 72, on C phase circuit 73
It is provided with current transformer 75, the pedestal 1 is mounted on guide rail 11, and the operating mechanism 4 includes handle 41, and handle 41 extends
To 3 surface of upper cover, the breaker of plastic casing further includes the surge protection module 8 being arranged in upper cover 3 and power line carrier module 9,
The surge protection module 8 is arranged above handle 41, and the side of handle 41, the wave is arranged in the power line carrier module 9
It gushes protective module 8 and power line carrier module 9 is electrically connected respectively on terminal plate 6, it is conductive that A phase is provided on A phase circuit 71
Copper bar 711 is provided with B phase conducting copper 721 on B phase circuit 72, C phase conducting copper 731, the A is provided on C phase circuit 73
Phase conducting copper 711, B phase conducting copper 721, the structure of C phase conducting copper 731 are consistent, and one end of A phase conducting copper 711 connects
Moving contact 51 is connect, the other end of A phase conducting copper 711 is connected on connecting terminal 76, is provided with one on A phase conducting copper 711
A Z-shaped bending part 712, current transformer 75 include 751, two coil windings of iron core being sleeved on bending part 712
752, the iron core 751 is in box shape, and two coil windings 752 are symmetricly set on iron core 751.
As shown in Fig. 4,5,6,7,11, terminal plate respectively with A phase circuit 71, B phase circuit 72, C phase circuit 73, N phase circuit
74 are electrically connected, and more sheets of conductive intermediate plate 61 is formed on terminal plate 6, and the surge protection module 8 includes surge protection module shell
82, wiring board 83, more sheets of conductive inserted sheet 81 in surge protection module shell 82 are set, and the bottom of the conductive insert 81 is solid
It is scheduled on wiring board 83, the top of conductive insert 81 extends to the outside of surge protection module shell 82, the conductive insert 81
Upper formation circular hole 811, the conductive clip 61 include first clamping piece 611 and second intermediate plate 612, the medial surface of first clamping piece 611
Form symmetrical salient point 613 with the medial surface of second intermediate plate 612, first clamping piece 611 close to conductive insert 81 side and
Close to the side of conductive insert 81, fold forms guide portion 614 to second intermediate plate 612 outward, and the conductive insert 81 passes through circular hole
811 and the cooperations of two salient points 613 connect with conductive clip 61, the side of upper cover 3 forms fluting 31, and 31 faces of the fluting are unrestrained
Protective module 8 is gushed, is provided with sealing plate 32 in the fluting 31.
As shown in figure 13, surge protection module includes that multiple fuse FUSE, multiple lightning protection varistor SPD and gas are put
One end of fulgurite GDT, the gas-discharge tube GDT are grounded, and are connected between A phase circuit and the other end of gas-discharge tube GDT
Have and is connected with fuse between fuse FUSE and lightning protection varistor SPD, B phase circuit and the other end of gas-discharge tube GDT
It is connected with fuse FUSE between FUSE and lightning protection varistor SPD, C phase circuit and the other end of gas-discharge tube GDT and prevents
Lightning protection varistor SPD is connected between thunder varistor SPD, N phase circuit and the other end of gas-discharge tube GDT.
As shown in Fig. 5,8,9,10, the side of terminal plate 6 is provided with ground strip 10, forms locating slot 21 on the middle seat 2,
Locating slot 21 forms resigning mouthful 211 close to the side of terminal plate, and the ground strip 10 includes interconnecting piece 101, the interconnecting piece 101
Head and the tail both ends extend to form to the two sides of interconnecting piece 101 turned over perpendicular to the first folding portion 102 of interconnecting piece 101 and second respectively
Folding part 103, first folding portion 102 are arranged in resigning mouthful 211 and are electrically connected with terminal plate 6, and second folding portion 103 is set
It sets in the bottom of locating slot 21, earthing screw 23 is connected in the second folding portion 103, and the lower section of the locating slot 21, which is formed, to be run through
The ground hole 22 of middle seat 2 and pedestal 1, the earthing screw 23 are sequentially passed through to be fixed to after the second folding portion 103, ground hole 22 and be led
On rail 11, the guide rail 11 is connected to the earth, and the surge protection module 8 and terminal plate 6 are realized jointly by ground strip 10
Ground connection.
As shown in Fig. 4 and 12, mounting groove 33 is formed in upper cover 3, the bottom of mounting groove 33 offers connection jaws 331, described
The position of face connection jaws 331 forms junction block 62 on terminal plate 6, and the power line carrier module 9 is arranged in mounting groove 33, electricity
Power carrier module 9 is electrically connected by junction block 62 with terminal plate 6, and the surface of the power line carrier module 9 is provided with cover board 34, institute
It states cover board 34 to be fixed in upper cover 3, power line carrier module 9 includes that circuit 91, signal coupling circuit 92, the high frequency occur for high frequency
Circuit 91 occurs to connect with signal coupling circuit 92, the signal coupling circuit 92 believes the high frequency that high frequency generation circuit 91 generates
Number it is coupled on A phase circuit 71 or B phase circuit 72 or C phase circuit 73.
Claims (10)
1. a kind of breaker of plastic casing including pedestal, middle seat, upper cover, operating mechanism, moving contact, static contact, is arranged in middle seat
Terminal plate, the conducting system being arranged in pedestal, the conducting system include A phase circuit, B phase circuit, C phase circuit, N phase time
Road, A phase circuit, B phase circuit are provided with current transformer on C phase circuit, and the pedestal is mounted on guide rail, the operation
Mechanism includes handle, and handle extends to upper lid surface, it is characterised in that: the breaker of plastic casing further includes being arranged in upper cover
Surge protection module and power line carrier module, the surge protection module are arranged above handle, and the power line carrier module is set
It sets in the side of handle, the surge protection module and power line carrier module are electrically connected respectively on terminal plate, A phase circuit
On be provided with A phase conducting copper, B phase conducting copper is provided on B phase circuit, C phase conducting copper, institute are provided on C phase circuit
State that A phase conducting copper, B phase conducting copper, the structure of C phase conducting copper are consistent, one end of A phase conducting copper connects moving contact, A
The other end of phase conducting copper is connected on connecting terminal, and a Z-shaped bending part is provided on A phase conducting copper, described
Current transformer is sleeved on bending part.
2. breaker of plastic casing according to claim 1, it is characterised in that: the terminal plate is returned with A phase circuit, B phase respectively
Road, C phase circuit, N phase circuit are electrically connected, and more sheets of conductive intermediate plate is formed on terminal plate, is formed on the surge protection module more
Piece conductive insert, surge protection module are electrically connected by the cooperation of conductive insert and conductive clip with terminal plate formation.
3. breaker of plastic casing according to claim 2, it is characterised in that: the side of the terminal plate is provided with ground strip,
Locating slot is formed on the middle seat, one end of the ground strip is electrically connected with terminal plate, and the other end setting of ground strip is positioning
In slot, the lower section of the locating slot forms the ground hole for running through middle seat and pedestal, is provided with and connects on the other end of the ground strip
Floor screw, the earthing screw are fixed on guide rail after sequentially passing through ground strip, ground hole, and the guide rail is connected to the earth, institute
It states surge protection module and terminal plate and common ground connection is realized by ground strip.
4. breaker of plastic casing according to claim 2 or 3, it is characterised in that: the surge protection module includes multiple guarantors
One end of dangerous silk FUSE, multiple lightning protection varistor SPD and gas-discharge tube GDT, the gas-discharge tube GDT ground line, A phase
Fuse FUSE and lightning protection varistor SPD, B phase circuit and gas are connected between circuit and the other end of gas-discharge tube GDT
Fuse FUSE and lightning protection varistor SPD, C phase circuit and gas-discharge tube are connected between the other end of body discharge tube GDT
The another of fuse FUSE and lightning protection varistor SPD, N phase circuit and gas-discharge tube GDT is connected between the other end of GDT
Lightning protection varistor SPD is connected between end.
5. breaker of plastic casing according to claim 1 or 2 or 3, it is characterised in that: the current transformer includes being sleeved on
Iron core, two coil windings on bending part, the iron core are in box shape, and two coil windings are symmetricly set on iron
On core.
6. breaker of plastic casing according to claim 2 or 3, it is characterised in that: the surge protection module includes that surge is protected
Shield module housing and the wiring board being arranged in surge protection module shell, the fixed assist side in the bottom of the conductive insert
On, the outside of surge protection module shell is extended at the top of conductive insert, and circular hole, the conduction are formed on the conductive insert
Intermediate plate includes first clamping piece and second intermediate plate, and the medial surface of first clamping piece and the medial surface of second intermediate plate form symmetrical convex
Point, close to the side of conductive insert and second intermediate plate, close to the side of conductive insert, fold forms guidance to first clamping piece outward
Portion, the conductive insert are connect by the cooperation of circular hole and two salient points with conductive clip.
7. breaker of plastic casing according to claim 3, it is characterised in that: the locating slot is formed close to the side of terminal plate
Resigning mouthful, the ground strip include interconnecting piece, and the head and the tail both ends of the interconnecting piece extend to form to the two sides of interconnecting piece vertical respectively
Directly in the first folding portion of interconnecting piece and the second folding portion, first folding portion is arranged in resigning mouthful and is electrically connected with terminal plate
It connects, the bottom of locating slot is arranged in second folding portion, and earthing screw is connected in the second folding portion.
8. breaker of plastic casing according to claim 2 or 3, it is characterised in that: the side of the upper cover forms fluting, described
It slots face surge protection module, is provided with sealing plate in the fluting.
9. breaker of plastic casing according to claim 1 or 2 or 3, it is characterised in that: form mounting groove on the upper lid, pacify
The bottom of tankage offers connection jaws, and the position of face connection jaws forms junction block, the power carrier mould on the terminal plate
Block is arranged in mounting groove, and power line carrier module is electrically connected by junction block with terminal plate, the surface of the power line carrier module
It is provided with cover board, the cover board is fixed on lid.
10. breaker of plastic casing according to claim 9, it is characterised in that: the power line carrier module includes high frequency
Circuit, signal coupling circuit, the high frequency occur circuit and connect with signal coupling circuit, and the signal coupling circuit takes place frequently height
The high-frequency signal that raw circuit generates is coupled on A phase circuit or B phase circuit or C phase circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720184.1A CN110379682A (en) | 2019-08-06 | 2019-08-06 | A kind of breaker of plastic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720184.1A CN110379682A (en) | 2019-08-06 | 2019-08-06 | A kind of breaker of plastic casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110379682A true CN110379682A (en) | 2019-10-25 |
Family
ID=68258112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910720184.1A Withdrawn CN110379682A (en) | 2019-08-06 | 2019-08-06 | A kind of breaker of plastic casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110379682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111835089A (en) * | 2020-08-13 | 2020-10-27 | 江苏方天电力技术有限公司 | Broadband power line carrier coupling module and molded case circuit breaker with same |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376112Y (en) * | 1998-07-21 | 2000-04-26 | 深圳市华为电气股份有限公司 | Lightning protection device |
| KR200243895Y1 (en) * | 2001-05-22 | 2001-10-29 | 서일전자 주식회사 | Structure for grounding a terminal block module |
| US6356426B1 (en) * | 1999-07-19 | 2002-03-12 | General Electric Company | Residential circuit breaker with selectable current setting, load control and power line carrier signaling |
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| CN109981143A (en) * | 2019-02-26 | 2019-07-05 | 彭浩明 | Power carrier wave communication device, breaker, socket and system |
| CN209896005U (en) * | 2019-08-06 | 2020-01-03 | 海格科技股份有限公司 | Plastic case circuit breaker |
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| CN103457355A (en) * | 2013-09-11 | 2013-12-18 | 南京捷泰电力设备有限公司 | Measurement-protection integrated low-voltage intelligent switch |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111835089A (en) * | 2020-08-13 | 2020-10-27 | 江苏方天电力技术有限公司 | Broadband power line carrier coupling module and molded case circuit breaker with same |
| CN111835089B (en) * | 2020-08-13 | 2022-07-08 | 江苏方天电力技术有限公司 | Broadband power line carrier coupling module and molded case circuit breaker with same |
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Application publication date: 20191025 |