CN207009388U - A kind of earth leakage protective device - Google Patents
A kind of earth leakage protective device Download PDFInfo
- Publication number
- CN207009388U CN207009388U CN201720992448.5U CN201720992448U CN207009388U CN 207009388 U CN207009388 U CN 207009388U CN 201720992448 U CN201720992448 U CN 201720992448U CN 207009388 U CN207009388 U CN 207009388U
- Authority
- CN
- China
- Prior art keywords
- movable stand
- holding section
- conjunction portion
- push rod
- button
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of earth leakage protective device, including support, movable stand and drive device, support is provided with stationary contact, and movable stand is provided with movable contact, and movable stand is connected by Flexible Connector with support to be set in swing；Drive device drives movable stand movement to realize the fitting and separation of dynamic and static contact, and it includes holding section, wiring board and the leaf spring with button linkage；One end of leaf spring and wiring board geo-stationary, the other end are that movable end links with button；Movable stand is provided with the conjunction portion of hooking, and holding section is positioned at hooking above conjunction portion during original state, and button, which is pressed, realizes that holding section is mutually blocked with hooking conjunction portion, and drive movable stand realizes the fitting of dynamic and static contact under the effect of leaf spring restoring force；Electromagnetic tripping apparatus includes push rod and the coil being sheathed on outside push rod, and ejector rod part is extend out to below movable stand beyond coil, and when leaking electricity, push rod promotes hook conjunction portion or holding section movement to release both hook conjunction states；The utility model is simple in construction, reliability is high etc..
Description
Technical field
It the utility model is related to a kind of earth leakage protective device.
Background technology
In order to prevent electric leakage from causing accident, it can usually increase creepage protection function on protection switch, with society
Progressive, the socket with creepage protection function produces already, however the existing socket with creepage protection function its lead to mostly
Cross back-moving spring and carry out Rapid reset.Such as Chinese patent CN200972971, the disclosed electric leakage with life end checking function
Socket is protected, its creepage protection function mainly passes through circuit board, button, back-moving spring, reset guide post, tripping coil, activity
Iron core, pagoda shape spring and lock are realized；Its concrete operating principle is as follows：When a button is depressed, reset guide post
Lock is caught in lower section, and back-moving spring shrinks energy storage, now, the circuit communication in socket；When leaking electricity, board receiver leakage
Electric signal makes tripping coil be powered so that movable core movement pulls lock so that the hook between lock and reset guide post closes
State is released from, and back-moving spring releases energy returning quickly so that dump.Because back-moving spring is all placed in socket
Portion, and back-moving spring service life is limited, and long-term use causes elastic force insufficient, now needs to change back-moving spring needs by again
Position spring is removed from inside, is changed relatively complicated.Therefore, how to design one kind has returning quickly function and changes convenient leakage
Electrical protective device turns into urgent problem.
The content of the invention
The utility model is mainly solving the technical problems that providing one kind has returning quickly function and change convenient leakage
Electrical protective device.
Technical scheme is used by the utility model solves its technical problem：A kind of earth leakage protective device, including branch
Frame, movable stand and drive device, support are provided with stationary contact, and movable stand is provided with movable contact, and movable stand passes through two elasticity
Connector is connected with support to be set in swing；Drive device drives movable stand to move the fitting and separation for realizing dynamic and static contact；
Wherein, drive device includes holding section, wiring board and the leaf spring with button linkage；One end of leaf spring is relative with wiring board quiet
Only, the other end is that movable end links with button；Movable stand is provided with the conjunction portion of hooking, and holding section is positioned at hooking in conjunction portion during original state
Side, button, which is pressed, realizes that holding section is mutually blocked with hooking conjunction portion, drives movable stand movement to realize dynamic and static touch under the effect of leaf spring restoring force
The fitting of point；Also include the electromagnetic tripping apparatus being fixed on support, it includes push rod and the coil being sheathed on outside push rod, top
Bar part is extend out to below movable stand beyond coil, and when leaking electricity, push rod promotes hook conjunction portion or holding section movement to make both
Conjunction state is hooked to release.
Using the setting of leaf spring, the back-moving spring in the prior art that compares is located in movable stand, and it is inconvenient to change, and the one of leaf spring
End and wiring board geo-stationary, the other end is movable end and button, and leaf spring is located at outside convenient disassembly；When button pressed downwards, by
In the leaf spring other end and wiring board geo-stationary, holding section engages with hooking conjunction portion and realizing, leaf spring returning quickly so that dynamic and static to touch
The quick fitting of point.
Wherein, leaf spring one end is fixed by bolt and wiring board.
Using the fixed form of bolt so that leaf spring is changed more convenient.
Wherein, button is provided with least two legs, and leaf spring is provided with fixing hole corresponding with leg, leg and fixing hole
It is fixed.
The cooperation of button and leaf spring so that linkage between the two sets more firm；Pass through consolidating for leg and fixing hole
It is fixed, undoubtedly add both fixing intensities.
Wherein, in addition to shell fragment, holding section is located on shell fragment to be formed by shell fragment bending, and wrap direction is to be retracted towards push rod
The bending in direction.
The holding section of shell fragment is set so that the cooperation of shell fragment and movable stand is more close, and button press, shell fragment pushes, card
Conjunction portion mutually blocks with hooking conjunction portion, passes through leaf spring Quick-return so that dynamic and static contact fitting.
Wherein, in addition to electromagnetic tripping apparatus, electromagnetic tripping apparatus are fixed on support including push rod and are sheathed on top
Coil outside bar, ejector rod part are extend out to below movable stand beyond coil；Push rod is slided so that holding section is realized with movable stand to be divided
From.
The separation of dynamic and static contact is realized by electromagnetic tripping apparatus, when electric leakage occurs, electromagnetic tripping apparatus driving push rod is slided
It is dynamic so that the setting that holding section separates with movable stand, to ensure that the stability of earth leakage protective socket, ensure the electric leakage i.e. effect of power-off
Fruit.
Wherein, Flexible Connector includes fixed part, bending section and installation portion, and fixed part passes through bending section phase with installation portion
Even；Fixed part is connected with support, and installation portion is used for the movable contact that is connected with movable stand and sets；Installation portion is U-shape structure, mobile
Frame part extends coupled in the hollow part of installation portion.
Due to the design of bending section so that Flexible Connector easily deform upon and deformation after reset, be advantageous to move
The swing of frame；Installation portion U-shape structure is advantageous to Flexible Connector to be fixed with movable stand.
Wherein, the bending direction of bending section is to be bent towards away from the direction of wiring board, and bending section is arc, bending section with it is solid
Determine portion mutually to close on；Acute angle be present between the upper surface of fixed part and the upper surface of installation portion, the acute angle is not more than
30°。
The design of such a structure so that Flexible Connector be more prone to deform upon and deformation after reset, further have
Beneficial to the swing of movable stand.
Wherein, transition through hole is offered on movable stand, one end and the button of shell fragment are fixed, and the other end passes through transition through hole,
Shell fragment is located on the movement locus of push rod；Conjunction portion is hooked to be located in a side wall of transition through hole；During initial position, holding section is with being provided with
Hooking has extruding force on the transition through-hole side wall in conjunction portion, shell fragment is moved down by button driving so that holding section is mutually blocked with hooking conjunction portion；When
When leaking electricity, electromagnetic tripping apparatus promotes coil electricity so that push rod ejects, and releases holding section with hooking the clamping relation in conjunction portion.
The structure of wiring board is known technology, is not repeated excessively herein, and its function of mainly realizing is detection electric leakage signal,
Then so that coil electricity, when in the absence of electric leakage signal, coil is off-position；Such a structure is also known as passive type structure.
Holding section and transition through-hole side wall due to shell fragment（The side wall, which is provided with, hooks conjunction portion）There is extruding force in initial position, therefore press
Dynamic button holding section can mutually block with hooking conjunction portion, and now come loose button, movable stand can be pulled to cause under the active force of leaf spring dynamic and static
Contact is bonded.When leaking electricity, coil electricity, push rod pushes shell fragment so that holding section can be with the engaging shape in hook conjunction portion
State releases, and shell fragment moves up in the presence of leaf spring, while the dynamic and static contact separation in the presence of Flexible Connector；Such a structure
Have the characteristics that triggering is stable, drive mechanism is simple, be swift in response.
Wherein, conjunction portion is hooked with movable stand in rotation connection, and the lower end for hooking conjunction portion is fixed with connecting rod, and push rod is provided with logical
Hole, connecting rod are penetrated into through hole and set with push rod in linkage；During initial position, button press makes holding section with hooking conjunction portion phase
Card；When leaking electricity, coil electricity causes push rod to eject, and drives connecting rod to rotate hook conjunction portion, promotes holding section to be closed with hooking
The hook conjunction state in portion releases.
The structure of wiring board is known technology, is not repeated excessively herein, and its function of mainly realizing is detection electric leakage signal,
Then so that coil electricity, when in the absence of electric leakage signal, coil is off-position.Button press holding section can be with hooking conjunction portion phase
Card, now come loose button, can pull movable stand that dynamic and static contact is bonded under the active force of leaf spring.When leaking electricity, line
Circle is powered, and push rod drives connecting rod to push connecting rod so that holding section can release with hooking the fastening state in conjunction portion, in the work of leaf spring
Moved up with lower shell fragment, while the dynamic and static contact separation in the presence of Flexible Connector.Such a structure has triggering stabilization, transmission
Simple in construction, the features such as being swift in response.
Wherein, hook conjunction portion and be provided with via, bearing pin is fixed through via with movable stand.
It is connected using bearing pin so that hooking conjunction portion with movable stand, the linkage hooked between conjunction portion and movable stand is more close.
Wherein, movable stand offers passage, and passage gets through the upper/lower terminal face of movable stand, before passage is located at movable stand
Side is provided with opening, hooks conjunction portion and is rotatably arranged in passage.
Using the setting of passage, hook conjunction portion and be rotatably arranged in passage convenient installation, while facilitate holding section with hooking conjunction portion
Realize and be engaged by clamping.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 1；
Fig. 2 is the side view of the utility model embodiment 1；
Fig. 3 is the sectional view of the utility model embodiment 1；
Fig. 4 is the structural representation of the utility model embodiment 2；
Fig. 5 is the side view of the utility model embodiment 2；
Fig. 6 is the sectional view of the utility model embodiment 2.
Embodiment
Embodiment 1：
Referring to the drawings shown in 1-3, a kind of earth leakage protective device, including wiring board 1, button 2, shell fragment 3, leaf spring 4, support 5,
Movable stand 6, Flexible Connector 7 and electromagnetic tripping apparatus.
The one end of leaf spring 4 fixed seat 26 positive with wiring board 1 is bolted, and bolt is worn from the back side of wiring board 1 herein
Enter to the front of wiring board 1 and fixed with leaf spring 4.The other end of leaf spring 4 is movable end and is located at the top of wiring board 1, and this end is provided with
At least two fixing holes 41, button 2 are provided with leg 21 corresponding with fixing hole 41, and leg 21 is fixed with fixing hole 41 to press
Button 2 is fixed in leaf spring 4.Leg 21 is provided with spigot surface 22 herein, convenient to fix, and spigot surface 22 is inclined-plane or cambered surface, leg
Optimal 21 quantity are four.
The one end of shell fragment 3 is fixed with button 2, and the one end of shell fragment 3 extends the lower section of wiring board 1 through wiring board 1, and such a structure causes
When pressing, shell fragment 3 can slide button 2 relative to wiring board 1.When the setting of leaf spring 4 causes 2 ineffective power of button, obtain
To reset.
Support 5 fixes the back side of assist side 1, and support 5 is provided with stationary contact, the knot of stationary contact is not drawn into the present embodiment
Structure, but the region b of stationary contact is marked out in Fig. 1.Movable stand 6 is located at the right side of support 5, and the both ends of movable stand 6 pass through
Two Flexible Connectors 7 are connected with support 5 so that movable stand 6 is set in swing.Movable stand 6 is provided with movable contact 8, movable contact 8
Corresponding with stationary contact, when movable stand 6 is swung towards wiring board 1, movable contact 8 realizes line conduction with stationary contact point touch, when
When movable stand 6 is away from the swing of wiring board 1, movable contact 8 separates with stationary contact.The specific attachment structure of movable stand 6 and support 5 is such as
Under：Movable stand 6 includes driving section 9 and auxiliary section 10, and driving section 9 is connected with the middle part of auxiliary section 10 and exceeds auxiliary section 10,
Transition through hole 11 is offered on driving section 9.
Flexible Connector 7 uses laminated structure, and it includes fixed part 12, bending section 13 and installation portion 14, fixed part 12
It is connected with installation portion 14 by bending section 13.Fixed part 12 is used to be connected with support 5, herein can be solid with support 5 by riveting
It is fixed.The bending direction of bending section 13 is bends towards away from the direction of wiring board 1, and bending section 13 is arc, and bending section 13 is with fixing
The phase of portion 12 is closed on.Installation portion 14 is U-shape structure, and the both ends of auxiliary section 10 are stretched into the installation portion 14 of two Flexible Connectors 7
It is fixed in empty part.Adopt the structure so that acute angle folder be present between the upper surface of fixed part 12 and the upper surface of installation portion 14
Angle a, acute angle a are not more than 30 °, and acute angle a is usually 10 ° -20 °.
Electromagnetic tripping apparatus, which is fixed on support 5, includes push rod 15 and the coil 16 being sheathed on outside push rod 15, push rod 15
Part is stretched out beyond coil 16 by the right of support 5, and the part of the stretching of push rod 15 is located at the lower section of movable stand 6.Shell fragment 3
The other end sequentially passes through wiring board 1 and transition through hole 11, and shell fragment 3 is located on the movement locus of push rod 15.Shell fragment 3 is provided with card
Conjunction portion 18, holding section 18 are hook, holding section 18 is formed by the part bending of shell fragment 3, and holding section 18 is oriented push rod 15
Retraction direction.Conjunction portion 19 is hooked on the hole wall of transition through hole 11, by opening up breach on the rear wall of transition through hole 11
20 realize, rear wall is the side wall close to magnetictrip position herein.In original state, holding section 18 is closed positioned at hook
The top of portion 19 and holding section 18 and the hole wall of the transition through hole 11 provided with hook conjunction portion 19 have extruding force；Now button press 2,
So that shell fragment 3 moves down, holding section 18 and the phase card of hook conjunction portion 19, the external force on button 2 is then removed, it is mobile under the effect of leaf spring 4
Frame 6 moves up so that movable contact is affixed realization conducting with stationary contact 8.When wiring board 1 detects electric leakage, wiring board 1 causes coil
16 are powered, and push rod 15 obtains magnetic field force effect ejection, promotes shell fragment 3 to cause holding section 18 with hooking the fastening state solution in conjunction portion 19
Remove, now leaf spring 4 recovers deformation button 2 is playbacked completely, while Flexible Connector 7 recovers deformation and movable stand 6 is playbacked.
Embodiment 2：
Referring to the drawings shown in 4-6, a kind of earth leakage protective device, including wiring board 1, button 2, holding section 18, leaf spring 4, branch
Frame 5, movable stand 6, Flexible Connector 7, hook conjunction portion 19 and electromagnetic tripping apparatus.
The one end of leaf spring 4 fixed seat 26 positive with wiring board 1 is bolted, and bolt is worn from the back side of wiring board 1 herein
Enter to the front of wiring board 1 and fixed with leaf spring 4；The other end of leaf spring 4 is movable end and is located at the top of wiring board 1, and this end is provided with
At least two fixing holes 41, button 2 are provided with leg 21 corresponding with fixing hole 41, and leg 21 is fixed with fixing hole 41 to press
Button 2 is fixed in leaf spring 4.Leg 21 is provided with spigot surface 22 herein, convenient to fix, and spigot surface 22 is inclined-plane or cambered surface, leg
Optimal 21 quantity are four.
Support 5 fixes the back side of assist side 1, and support 5 is provided with stationary contact, the knot of stationary contact is not drawn into the present embodiment
Structure, but the region b of stationary contact is marked out in Fig. 1.Movable stand 6 is located at the right side of support 5, and the both ends of movable stand 6 pass through
Two Flexible Connectors 7 are connected with support 5 so that movable stand 6 is set in swing.Movable stand 6 is provided with movable contact 8, movable contact 8
Corresponding with stationary contact, when movable stand 6 is swung towards wiring board 1, movable contact 8 realizes line conduction with stationary contact point touch, when
When movable stand 6 is away from the swing of wiring board 1, movable contact 8 separates with stationary contact.The specific attachment structure of movable stand 6 and support 5 is such as
Under：Movable stand 6 includes driving section 9 and auxiliary section 10, and driving section 9 is connected with the middle part of auxiliary section 10 and exceeds auxiliary section 10.
Flexible Connector 7 uses laminated structure, and it includes fixed part 12, bending section 13 and installation portion 14, fixed part 12
It is connected with installation portion 14 by bending section 13.Fixed part 12 is used to be connected with support 5, herein can be solid with support 5 by riveting
It is fixed.The bending direction of bending section 13 is bends towards away from the direction of wiring board 1, and bending section 13 is arc, and bending section 13 is with fixing
The phase of portion 12 is closed on.Installation portion 14 is U-shape structure, and the both ends of auxiliary section 10 are stretched into the installation portion 14 of two Flexible Connectors 7
It is fixed in empty part.Adopt the structure so that acute angle folder be present between the upper surface of fixed part 12 and the upper surface of installation portion 14
Angle a, acute angle a are not more than 30 °, and acute angle a is usually 10 ° -20 °.
The one end of holding section 18 is fixed with button 2, and the one end of holding section 18 extends the lower section of wiring board 1, Ci Zhongjie through wiring board 1
Structure causes button 2 when pressing, and holding section 18 can be slided relative to wiring board 1；The setting of leaf spring 4 causes button 2 to lose work
When firmly, resetted.
Movable stand 6 offers passage 61, and passage 61 gets through the upper/lower terminal face of movable stand 6, and passage 61 is located at movable stand 6
Leading flank be provided with opening, hook conjunction portion 19 in passage；Hook conjunction portion 19 and be provided with connecting rod 231 and via 232, bearing pin
Through the conduit wall of via 232 and passage 61 in setting is rotated, realize that hook conjunction portion 19 is connected with movable stand 6.
Electromagnetic tripping apparatus, which is fixed on support 5, includes push rod 15 and the coil 16 being sheathed on outside push rod 15, push rod 15
Part is stretched out beyond coil 16 by the right of support 5, and the part of the stretching of push rod 15 is located at the lower section of movable stand 6.Push rod 15
Through hole 24 is offered on the part of stretching, connecting rod 231 is stretched in through hole 24 so that hook between the entirety of conjunction portion 19 and push rod 15
Set in linkage, the radius R of through hole 24 is more than the thickness d of connecting rod 231.
The other end of holding section 18 sequentially passes through wiring board 1 and opening 25；The bottom of holding section 18 is hook, and holding section
The retraction direction for being oriented push rod 15 of 18 bottoms.In original state, holding section 18 is positioned at the top for hooking conjunction portion 19；Due to first
Beginning state lower coil 16 is off-position, and push rod 15 does not move；Now button press 2 so that holding section 18 moves down, holding section 18
Then bottom removes the external force on button 2, under the effect of leaf spring 4, movable stand 6 moves up so that movable contact with hooking the phase card of conjunction portion 19
Realization conducting is affixed with stationary contact 8.When wiring board 1 detects electric leakage, wiring board 1 causes coil 16 to be powered, and push rod 15 is in magnetic
Field force effect ejection, connecting rod 231 is driven make it that hooking conjunction portion 19 rotates, and releases holding section 18 with hooking the fastening state in conjunction portion 19,
Now leaf spring 4 recovers deformation button 2 is playbacked completely, while Flexible Connector 7 recovers deformation and movable stand 6 is playbacked.
Claims (10)
1. a kind of earth leakage protective device, including support, movable stand and drive device, support is provided with stationary contact, on movable stand
Provided with movable contact, movable stand is connected by two Flexible Connectors with support to be set in swing；Drive device drives movable stand to move
The dynamic fitting and separation for realizing dynamic and static contact；It is characterized in that：Drive device includes and the holding section of button linkage, circuit
Plate and leaf spring；One end of leaf spring and wiring board geo-stationary, the other end are that movable end links with button；Movable stand, which is provided with, to be hooked
Conjunction portion, holding section is positioned at hooking above conjunction portion during original state, and button, which is pressed, realizes that holding section is mutually blocked with hooking conjunction portion, in leaf spring reply
The lower fitting for driving movable stand movement to realize dynamic and static contact of power effect；Also include the electromagnetic tripping apparatus being fixed on support, its
Including push rod and the coil being sheathed on outside push rod, ejector rod part is extend out to below movable stand beyond coil, when leaking electricity
Push rod promotes hook conjunction portion or holding section movement to release both hook conjunction states.
2. earth leakage protective device as claimed in claim 1, it is characterised in that：Leaf spring one end is fixed by bolt and wiring board.
3. earth leakage protective device as claimed in claim 1, it is characterised in that：Button is provided with least two legs, leaf spring
Movable end is provided with fixing hole corresponding with leg, and leg is fixed with fixing hole.
4. earth leakage protective device as claimed in claim 1, it is characterised in that：Also include shell fragment, holding section be located on shell fragment by
Shell fragment bending is formed, and wrap direction is that the bending in direction is retracted towards push rod.
5. earth leakage protective device as claimed in claim 1, it is characterised in that：Flexible Connector include fixed part, bending section with
And installation portion, fixed part are connected with installation portion by bending section；Fixed part is connected with support, and installation portion is used to be connected with movable stand
And movable contact is set；Installation portion is U-shape structure, and movable stand part extends coupled in the hollow part of installation portion.
6. earth leakage protective device as claimed in claim 5, it is characterised in that：The bending direction of bending section is that court deviates from wiring board
Direction bending, bending section is arc, and bending section is mutually closed on fixed part；The upper surface of fixed part and the upper surface of installation portion it
Between acute angle be present, the acute angle be not more than 30 °.
7. earth leakage protective device as claimed in claim 4, it is characterised in that：Transition through hole is offered on movable stand, shell fragment
One end is fixed with button, and the other end passes through transition through hole, and shell fragment is located on the movement locus of push rod；Hook conjunction portion and be located at transition through hole
A side wall on；During initial position, holding section on the transition through-hole side wall provided with hook conjunction portion with having extruding force, and shell fragment is by button
Driving moves down so that holding section is mutually blocked with hooking conjunction portion；When leaking electricity, electromagnetic tripping apparatus promotes coil electricity to cause push rod
Ejection, holding section is released with hooking the clamping relation in conjunction portion.
8. earth leakage protective device as claimed in claim 1, it is characterised in that：Conjunction portion is hooked with movable stand in rotation connection, hooks and closes
The lower end in portion is fixed with connecting rod, and push rod is provided with through hole, and connecting rod is penetrated into through hole and set with push rod in linkage；Initially
During position, button press makes holding section mutually block with hooking conjunction portion；When leaking electricity, coil electricity causes push rod to eject, the company of drive
Extension bar rotates hook conjunction portion, promotes holding section to be released with hooking the hook conjunction state in conjunction portion.
9. earth leakage protective device as claimed in claim 8, it is characterised in that：Hook conjunction portion and be provided with via, bearing pin passes through via
Fixed with movable stand.
10. earth leakage protective device as claimed in claim 8, it is characterised in that：Movable stand offers passage, and passage gets through movement
The upper/lower terminal face of frame, the leading flank that passage is located at movable stand are provided with opening, hook conjunction portion and are rotatably arranged in passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992448.5U CN207009388U (en) | 2017-08-09 | 2017-08-09 | A kind of earth leakage protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992448.5U CN207009388U (en) | 2017-08-09 | 2017-08-09 | A kind of earth leakage protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009388U true CN207009388U (en) | 2018-02-13 |
Family
ID=61458923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992448.5U Active CN207009388U (en) | 2017-08-09 | 2017-08-09 | A kind of earth leakage protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207009388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066581A (en) * | 2018-07-27 | 2018-12-21 | 东莞市拓诚实业有限公司 | A kind of earth leakage protective device |
-
2017
- 2017-08-09 CN CN201720992448.5U patent/CN207009388U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109066581A (en) * | 2018-07-27 | 2018-12-21 | 东莞市拓诚实业有限公司 | A kind of earth leakage protective device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110400727A (en) | Breaker | |
| CN207009388U (en) | A kind of earth leakage protective device | |
| CN100428384C (en) | Circuit breaker interlocking device | |
| WO2017020820A1 (en) | Energy storage operating mechanism for circuit breaker | |
| CN110112671B (en) | Plug-in type multifunctional interlocking mechanism of distribution box | |
| CN108661454B (en) | Automatic door lock of dish washing machine and dish washing machine | |
| CN207009387U (en) | A kind of earth leakage protective device | |
| CN107221787B (en) | Leakage protection indicating device, leakage protection plug and leakage protection socket | |
| CN215342357U (en) | High-voltage interlocking device for electric high-voltage switch cabinet | |
| CN111577019A (en) | Mechanical unlocking device of electromagnetic lock | |
| CN108288785A (en) | Three pole break-make leakage protecting plugs | |
| CN212875892U (en) | Clamping support | |
| CN201112276Y (en) | Combination switch of toaster | |
| CN209766176U (en) | High-efficiency current transformer | |
| CN111224259B (en) | Safety pull-free socket integrating power switch and pop-up control mechanism | |
| CN210744594U (en) | Low-voltage drawer type switch cabinet | |
| CN210897144U (en) | Circuit breaker | |
| CN106711691B (en) | Plug with self-locking function | |
| CN107578964B (en) | A kind of mechanical interlocks for air-break circuit-breaker | |
| CN206893870U (en) | A kind of earth leakage protective instruction device, leakage protecting plug and earth leakage protective socket | |
| CN207765386U (en) | A kind of electric leakage mechanism of leakage circuit breakers | |
| CN111900045A (en) | Locking and unlocking device of circuit breaker | |
| CN207966901U (en) | A kind of electrical leakage tripping device of leakage circuit breakers | |
| CN108133874B (en) | Leakage tripping mechanism of leakage circuit breaker | |
| CN207124168U (en) | A kind of mounting structure of breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |