CN209071821U - A kind of strong and weak master switch being electrically isolated - Google Patents
A kind of strong and weak master switch being electrically isolated Download PDFInfo
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- CN209071821U CN209071821U CN201821963887.4U CN201821963887U CN209071821U CN 209071821 U CN209071821 U CN 209071821U CN 201821963887 U CN201821963887 U CN 201821963887U CN 209071821 U CN209071821 U CN 209071821U
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- breaker assembly
- master switch
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Abstract
A kind of strong and weak master switch being electrically isolated comprising: for controlling the pole the L breaker assembly of firewire；For controlling the pole the N breaker assembly of zero curve；The reclosing control assembly of separating brake or combined floodgate is realized for receiving control instruction, the driving pole L breaker assembly and the pole N breaker assembly；And the gauge assembly for sampling the electric current in firewire, carrying out electric current and/or electric quantity monitoring, the gauge assembly includes current transformer and metering chip；Moreover, the installation space of the installation space of the pole L breaker assembly, the installation space of the pole N breaker assembly and the current transformer is mutually separated by isolation board and the installation space of the reclosing control assembly and the installation space of the metering chip.The weak current part and strong power part of this master switch are separated by isolation board, are not only able to avoid the interference between forceful electric power and light current, and light current place accommodating cavity is opened when on-line maintenance, are not required to watch out for electric shock, maintenance is more convenient.
Description
Technical field
The utility model relates to the master switch in small distribution case, especially small distribution case.
Background technique
The small distribution case of indoor power supply is usually embedded in wall, is protected by master switch, at least one switch-dividing and lightning protection
Protect module composition.Existing master switch designs for integral type, on the one hand there is interference, influences the reliability of switch, on the other hand
It needs to watch out for electric shock when on-line maintenance, maintenance is inconvenient.
Utility model content
It is of the existing technology above-mentioned to solve the purpose of the utility model is to provide a kind of strong and weak master switch being electrically isolated
Defect.
In order to achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of strong and weak master switch being electrically isolated comprising: for controlling the pole the L breaker assembly of firewire；For controlling zero
The pole the N breaker assembly of line；Divide for receiving control instruction, the driving pole L breaker assembly and the pole N breaker assembly and realizing
The reclosing control assembly of lock or combined floodgate；And the metering for sampling the electric current in firewire, carrying out electric current and/or electric quantity monitoring
Component, the gauge assembly include current transformer and metering chip；Moreover, the installation space of the pole L breaker assembly, institute
The installation space of the installation space and the current transformer of stating the pole N breaker assembly is controlled by isolation board and the reclosing
The installation space of component and the installation space of the metering chip are mutually separated.
In some schemes, the installation space of the installation space of the pole L breaker assembly, the pole N breaker assembly
It is located in first shell with the installation space of the current transformer, the installation space and the meter of the reclosing control assembly
The installation space of amount chip is located in second shell.
In other schemes, the installation space of the pole L breaker assembly and the installation space position of the current transformer
In first shell, the installation space of the reclosing control assembly and the installation space of the metering chip are located at second shell
In, the installation space of the pole N breaker assembly is located in third shell.
Preferably, the master switch further includes earth leakage protective component, the installation space of the earth leakage protective component by every
From the installation space of plate and the pole L breaker assembly, the installation space and the current transformer of the pole N breaker assembly
Installation space be mutually separated.
Preferably, the pole L breaker assembly and the pole N breaker assembly all have input terminal, output terminal, with
The contact system and the handle of the driving contact system, overload that the input terminal is connected with the output terminal are protected
Protect mechanism and short current protective mechanism；The reclosing control assembly has motor, universal driving shaft, setting in the universal driving shaft and described
The first line plate of transmission mechanism and the control motor between motor；The shaft phase of the universal driving shaft and the handle
It is coupled.
Preferably, the tie down screw of the tie down screw of the input terminal and the output terminal is by screw head and screw rod
Seat composition, the material of the screw head are metal, and the material of the screw bolt seat is insulating materials.
Preferably, which is characterized in that the strong and weak master switch being electrically isolated further includes communication interface, and the communication interface is set
It sets in the side wall opposite with switch-dividing or communication module.
Compared with prior art, the utility model at least has the advantages that
The weak current part and strong power part of this master switch are separated by isolation board, are not only able to avoid between forceful electric power and light current
Interference, and accommodating cavity where opening light current when on-line maintenance is not required to watch out for electric shock, maintenance is more convenient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model master switch first embodiment；
Fig. 2 is the structural schematic diagram of the utility model master switch second embodiment；
Fig. 3 is the structural schematic diagram of the utility model master switch 3rd embodiment；
Fig. 4 is the structural schematic diagram of a preferred embodiment master switch；
Fig. 5 is the distribution map of the pole L breaker assembly and current transformer in first shell；
Fig. 6 attaches most importance to distribution map of the shutting-brake control component in second shell；
Fig. 7 is distribution map of the earth leakage protective component in the 4th shell.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples.
The inventive concept of the utility model is for the strong power part of master switch and weak current part to be isolated, and is reached with this
It avoids interference, improve reliability, and electric shock when on-line maintenance is avoided to worry.
As shown in Figure 1, in the first embodiment, master switch uses a shell 1, the inner cavity of the shell 1 by vertically every
Two accommodating cavities are separated into from plate 2, for convenience of description, are referred to as the first accommodating cavity 3 and the second accommodating cavity 4.The pole L breaker group
Part, the pole N breaker and current transformer setting are in the first accommodating cavity 3, and reclosing control assembly and metering chip setting are the
Two accommodating cavities 4.That is, the peace of the installation space of the pole L breaker assembly, the installation space of the pole N breaker assembly and current transformer
Dress space is mutually separated by isolation board 2 and the installation space of reclosing control assembly and the installation space of metering chip.It is left in Fig. 1
The plate body of side and the plate body on right side are the cover board of accommodating cavity.
As shown in Fig. 2, in a second embodiment, master switch uses two shells 1, two shells 1 are arranged side by side, shell 1
Shell wall constitute isolation board.Shell (the i.e. first shell of the pole L breaker assembly, the pole N breaker and the current transformer setting left side
Body) in, and reclosing control assembly and metering chip are arranged in the shell (i.e. second shell) on right side.In this way, also achieving L
Installation space, the installation space of the pole N breaker assembly and the installation space of current transformer of pole breaker assembly pass through isolation
Plate is mutually separated with the installation space of reclosing control assembly and the installation space of metering chip.
As shown in figure 3, in the third embodiment, master switch uses three shells 1, three shells 1 are arranged side by side, shell 1
Shell wall constitute isolation board.Reclosing control assembly and metering chip are arranged in the shell (i.e. second shell) on right side, the pole L
Breaker assembly and current transformer are arranged in intermediate shell (i.e. first shell), and the pole N breaker assembly is arranged in left side
Shell (i.e. third shell) in.Equally also achieve the separation of master switch strong power part and weak current part.
Fig. 4 shows the structure of a preferred embodiment master switch.Its shell uses four shells 1, in four shells 1
Upper end is also provided with trim 5.From left to right, it is successively installed in four shells 1: reclosing control assembly and metering chip；The pole N
Breaker assembly；The pole L breaker assembly and current transformer；Earth leakage protective component.
Referring to figure 5., the pole L breaker assembly includes input terminal 201, output terminal 212 and the input terminal and institute
State contact system 208, handle 206, overload protecting mechanism 210 and short current protective mechanism 202 that output terminal is connected.Handle
206 installations can rotate in the housing around first axle 205, and 208 one side of contact system is coupled by interlocking bar 207 with handle 206,
When handle 206 is rotated around first axle 205, interlocking bar 207 is driven to act, and then by interlocking bar 207 with movable contact system 208
It rotates counterclockwise or rotates clockwise around the second axis 209, realize separating brake or combined floodgate.
Contact system 208 is also linked by another interlocking bar 207 with overload protecting mechanism 210, the overload protection
Mechanism 210 is bimetal leaf, and when circuit is in overload fault, right direction Bending Deformation of the bimetal leaf into Fig. 5 is driven
Interlocking bar 207 moves right, and then rotates counterclockwise with movable contact system 208 around the second axis 209, and breaker is made to enter separating brake shape
State.
Short current protective mechanism 202 is magnetictrip, and coil is connected between stationary contact and input terminal 201, defeated
The end of rod 203 and the contact system 208 are opposite, and when circuit is in short trouble, the magnetic field that coil generates pushes defeated
Right direction of the rod 203 into Fig. 5 moves, push contact system 208 rotated counterclockwise around the second axis 209, make breaker into
Enter gate-dividing state.
First axle 205 is provided with attachment 204 along its axial direction, for cooperating with the universal driving shaft of reclosing control assembly, drives
Movable contact system 208 is rotated around the second axis 209, realizes separating brake or combined floodgate.
Current transformer 211 is for acquiring current value, for monitor current data and statistics electricity consumption.
The structure of the pole N breaker assembly is identical as the structure of the pole L breaker assembly in Fig. 5.
Fig. 6 is please referred to, reclosing control assembly includes motor 101, universal driving shaft 104, is arranged in the universal driving shaft 104 and institute
State the first line plate 102 of the transmission mechanism 103 and the control motor between motor 101.Transmission mechanism 103 includes tooth
Wheel group, the worm screw (not shown) being arranged on motor shaft and the linkage gear (not shown) being arranged on universal driving shaft 104.Gear set
On the one hand it is engaged with linkage gear, on the other hand there is worm gear part, be meshed with the worm screw on motor shaft, when motor 101 works,
Worm drive gear set on motor shaft and then the rotation of universal driving shaft 104 is driven by linkage gear.With further reference to Fig. 4, linkage
Attachment 204 on axis 104 and Handle axis (first axle 205) cooperates, and the rotation of universal driving shaft 104 will be with fixed handle around first axle
205 rotations, and then the contact system of the pole L breaker assembly and the contact system of the pole N breaker assembly is driven to rotate synchronously, thus
Realize the synchroswitching or separating brake of two breakers.
First line plate 102 receives control signal, and control motor 101 forward or reverse, realizes combined floodgate or separating brake.In addition,
Metering chip (not shown) is provided on first line plate 102, metering chip is electrically connected with current transformer 211 (see Fig. 5),
Realize breaker the statistics of the monitoring of electric current and electricity in circuit.
Fig. 7 is please referred to, earth leakage protective component has zero sequence current mutual inductor 302, traction piece 306,311 and of leakage tripping device
Second wiring board 312.Offer arcuate socket 304 and two electrode holes 301 in a side of its shell 1, the inside of shell 1 in
Pin shaft 305 is arranged in the side of the arcuate socket 304 and the other side of the arcuate socket 304 is opposite in the two sides of the pin shaft 305
Limiting section 303 and leakage tripping device 311 is arranged in ground.Zero sequence current mutual inductor 302 is close to the electrode hole 314 and and second circuit
Plate 312 is electrically connected, and traction piece 306 is installed on the pin shaft 305, one end is from the limiting section 303 and the leakage tripping device
It is passed through between 311, traction piece 306 intersects with the arcuate socket 304 and is provided with traction piece reset spring between shell (not
Diagram), leakage tripping device 311 is electrically connected with second circuit board 312, the output rod 307 and the traction piece of leakage tripping device 311
306 contacts.Incorporated by reference to Fig. 4, the output terminal of the pole N breaker and the output terminal of the pole L breaker pass through auxiliary electrode 215 respectively
It protrudes into the shell of earth leakage protective component.Zero sequence current mutual inductor 302 samples the auxiliary electricity protruded into from described two electrode holes 301
Electric current in pole 215, sampled data inputs the second wiring board 312, and when there is leakage current, leakage tripping device 311 generates magnetic field
Make left side ejection of the output rod 307 into Fig. 7, pushes traction piece 306 to rotate clockwise around pin shaft 305, the rotation of traction piece 306
Driving the driving lever 209 ' (see Fig. 5) on breaker contact system, arcuately hole 304 rotates, and unlocks the contact system of breaker,
Breaker switches to gate-dividing state, at this point, traction piece 306 is limited the blocking of portion 303, will not continue to rotate.After leakage current disappears,
The magnetic field that leakage tripping device 311 generates disappears, and output rod 307 bounces back, under the action of traction piece reset spring, traction piece 306
It is rotated counterclockwise around pin shaft 305, homing, breaker is allow to be closed a floodgate.
Earth leakage protective component further comprises earth leakage protective mechanism for testing, please refers to Fig. 7, the earth leakage protective test machine
Structure include be arranged in shell it is intracorporal spatially with respect to and mutually two sheet metals 308 and 310 across a certain distance and setting exist
The testing button 309 for pushing described two sheet metals to contact on shell, described two sheet metals and the electric leakage are threaded off
Device 311 is electrically connected.When test, testing button to be pressed, makes two sheet metal conductings, leakage tripping device generates simulation electric leakage magnetic field,
Make left side ejection of the output rod 307 into Fig. 7, the above-mentioned movement of output rod will push breaker 2 to enter gate-dividing state.Test is pressed
Button 309 is equipped with pressure spring (not shown) below, and after discharging testing button, the elastic force of pressure spring resets testing button upwards, and two
Sheet metal restores to off-state.
Referring to figure 4., the master switch which is electrically isolated further comprises communication interface 6, and the communication interface 6 is arranged
In the side wall opposite with switch-dividing or communication module.In this way, working as master switch and switch-dividing or master switch and communication module etc. side by side
When combination, the communication interface 6 of side wall is plugged, and realizes communication connection, so that communication connection is more convenient.
Also in some more preferably embodiments, the tie down screw of the tie down screw of the input terminal and the output terminal
It is made of screw head and screw bolt seat, the material of the screw head is metal, and the material of the screw bolt seat is insulating materials.Using
This tie down screw, the electric current on conducting wire will not be conducted to the leakage part of tie down screw, thus even if inadvertently contacting lock
The leakage part of tight screw rod, will not get an electric shock.Wherein, the preferred plastic spiral pole socket of screw bolt seat, and be arranged in the end of screw head
There is interconnecting piece, the periphery clinkering that the front end of screw bolt seat is wrapped in the interconnecting piece is fixed, and links screw bolt seat and screw head with this
It is integrated.
The utility model is described in detail above by specific embodiment, these detailed description are only limited to
The content of the utility model is helped skilled in the art to understand, the limit to scope of protection of the utility model can not be interpreted as
System.Those skilled in the art should all wrap various retouchings, the equivalent transformation etc. that above scheme carries out under the utility model design
Containing within the protection scope of the present utility model.
Claims (7)
1. a kind of strong and weak master switch being electrically isolated, comprising:
For controlling the pole the L breaker assembly of firewire；
For controlling the pole the N breaker assembly of zero curve；
Separating brake or combined floodgate are realized for receiving control instruction, the driving pole L breaker assembly and the pole N breaker assembly
Reclosing control assembly；And
Gauge assembly for sampling the electric current in firewire, carrying out electric current and/or electric quantity monitoring, the gauge assembly includes electric current
Mutual inductor and metering chip；
It is characterized by: the installation space of the installation space of the pole L breaker assembly, the pole N breaker assembly and described
The installation space of current transformer passes through the installation space of isolation board and the reclosing control assembly and the metering chip
Installation space is mutually separated.
2. the strong and weak master switch being electrically isolated according to claim 1, it is characterised in that: the peace of the pole L breaker assembly
Dress space, the installation space of the pole N breaker assembly and the installation space of the current transformer are located in first shell, institute
The installation space of the installation space and the metering chip of stating reclosing control assembly is located in second shell.
3. the strong and weak master switch being electrically isolated according to claim 1, it is characterised in that: the peace of the pole L breaker assembly
Dress space and the installation space of the current transformer are located in first shell, the installation space of the reclosing control assembly with
The installation space of the metering chip is located in second shell, and the installation space of the pole N breaker assembly is located at third shell
In.
4. the strong and weak master switch being electrically isolated according to claim 1, it is characterised in that: the master switch further includes that electric leakage is protected
Protecting assembly, the installation space of the earth leakage protective component pass through the installation space of isolation board and the pole L breaker assembly, described
The installation space of the pole N breaker assembly and the installation space of the current transformer are mutually separated.
5. the strong and weak master switch being electrically isolated according to claim 1, it is characterised in that: the pole L breaker assembly and institute
It states the pole N breaker assembly and all has input terminal, output terminal, the touching being connected with the input terminal and the output terminal
Handle, overload protecting mechanism and the short current protective mechanism of head system and the driving contact system；The reclosing control group
Part has motor, universal driving shaft, the transmission mechanism being arranged between the universal driving shaft and the motor and the control motor
First line plate；The shaft of the universal driving shaft and the handle is linked.
6. the strong and weak master switch being electrically isolated according to claim 5, which is characterized in that the tie down screw of the input terminal
It is made of with the tie down screw of the output terminal screw head and screw bolt seat, the material of the screw head is metal, the spiral shell
The material of pole socket is insulating materials.
7. the strong and weak master switch being electrically isolated as claimed in any of claims 1 to 6, which is characterized in that the power
The master switch of electric isolution further includes communication interface, and the side wall opposite with switch-dividing or communication module is arranged in the communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821963887.4U CN209071821U (en) | 2018-11-26 | 2018-11-26 | A kind of strong and weak master switch being electrically isolated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821963887.4U CN209071821U (en) | 2018-11-26 | 2018-11-26 | A kind of strong and weak master switch being electrically isolated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209071821U true CN209071821U (en) | 2019-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821963887.4U Active CN209071821U (en) | 2018-11-26 | 2018-11-26 | A kind of strong and weak master switch being electrically isolated |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593991A (en) * | 2021-08-06 | 2021-11-02 | 浙江夏兴电子科技股份有限公司 | Automatic reclosing leakage protection circuit breaker with metering function |
-
2018
- 2018-11-26 CN CN201821963887.4U patent/CN209071821U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593991A (en) * | 2021-08-06 | 2021-11-02 | 浙江夏兴电子科技股份有限公司 | Automatic reclosing leakage protection circuit breaker with metering function |
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