CN207199849U - A kind of earthing or grounding means with reverse wiring protection function - Google Patents
A kind of earthing or grounding means with reverse wiring protection function Download PDFInfo
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- CN207199849U CN207199849U CN201720171494.9U CN201720171494U CN207199849U CN 207199849 U CN207199849 U CN 207199849U CN 201720171494 U CN201720171494 U CN 201720171494U CN 207199849 U CN207199849 U CN 207199849U
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- reset
- furcula
- iron core
- earthing
- protection function
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Abstract
A kind of earthing or grounding means with reverse wiring protection function; including housing; input, output end; on housing set reset button component, the ground-fault interrupter also include be arranged on the dropout iron core of enclosure interior and be connected with dropout iron core afterbody tripping coil spring, the single chip microcomputer circuit board for detecting and sending trip signal; and some silver points for being used to turn on; sliding block in housing is arranged on the bottom in housing under sliding block action of reset spring power, and the reset button component includes button cap, back-moving spring and resets furcula.The beneficial effects of the utility model are：Height that is simple in construction, reducing product, convenient production, production cost is reduced, can be also effectively protected even if reversed circuit, increase the reliability of product.
Description
Technical field
Protection device of electrical equipment technical field is the utility model is related to, particularly one kind has reverse wiring protection function
Earthing or grounding means.
Background technology
GFCI has obtained wide popularization and application in north America regions such as the U.S., Canada, the life to the above-mentioned regional people
Life property safety plays a very good protection.Common GFCI circuit generally includes electric-leakage detection circuit, neutral detection electricity
Road, professional signal processing integrated circuit (such as：The patent such as RV4141/RV4145/LM1851 electric leakage signal handles integrated circuit.)
Manual test circuit, trip circuit and simple power circuit and indicating circuit, there is simple electric leakage, neutral abnormal power-down
And indicator function and manual test function, traditional earthing or grounding means with reverse wiring protection function, protected by reverse wiring
Protection circuit come realize reverse wiring protection function, cost is higher, complicated.
Utility model content
To overcome drawbacks described above, the utility model provides following technical scheme.
A kind of earthing or grounding means with reverse wiring protection function, including housing, input, output end, set on housing
Reset button component, the ground-fault interrupter also include be arranged on enclosure interior dropout iron core and with dropout iron core afterbody
The tripping coil spring of connection, the single chip microcomputer circuit board for detecting and sending trip signal, and some silver points for being used to turn on,
Sliding block in housing is arranged on the bottom in housing under sliding block action of reset spring power, it is characterised in that the SR
Component includes button cap, back-moving spring and resets furcula, the head of the button cap fixed reset furcula, and the reset furcula is
Conductive metal is formed, and one end is to be used to be socketed back-moving spring and be fixed on button cap, and the other end is to be used to connect single-chip microcomputer
The prong like of board switch, is the hole for being passed through for dropout iron core head above prong like, the reset
Spring is used to reset button component returning to initial position.
Further, the reset furcula contact touching shell fragment is spacing.
Further, the through hole passed through for resetting furcula is set inside the sliding block.
Further, when being not powered on or when input, output end is reversed, the head of dropout iron core resets furcula through reset
Forked position it is spacing.
The trip signal sent according to circuit board single-chip microcomputer, when tripping coil is powered, dropout iron core solves under magneticaction
Except to reset furcula forked part it is spacing, when tripping coil is off-position, dropout spring of the dropout iron core in its afterbody
Elastic force effect lower will insert the hole for resetting furcula.
Further, the head of the dropout iron core is cylinder, and the hole for resetting furcula is ellipse.
The beneficial effects of the utility model are：The beneficial effects of the utility model are：It is simple in construction, reduce the height of product
Degree, convenient production, reduce production cost, can be also effectively protected even if reversed circuit, increase the reliability of product.
Brief description of the drawings
Fig. 1 is the earthing or grounding means cross-sectional view figure for having in the utility model reverse wiring protection function.
Fig. 2 is the product structure explosive view of the utility model specific embodiment.
Reset button component presses schematic diagram when Fig. 3 is reverse wiring in the utility model specific embodiment.
Reset button component presses schematic diagram when Fig. 4 is positive wiring in the utility model specific embodiment.
Reset button component is upspring schematic diagram after pressing when Fig. 5 is positive wiring in the utility model specific embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model.
As shown in Figures 1 and 2, a kind of earthing or grounding means with reverse wiring protection function, including housing 10, the housing
Formed including upper lid 11, lower cover 12 and center 13, by screw through fixing, input 60, output end 61 are separately positioned on shell
Both ends corresponding to body, reset button component 20 is set on housing, test button 22 is additionally provided with by reset button component, is arranged on
Dropout iron core 32 inside housing 10 and the tripping coil 30 being connected with dropout iron core afterbody and it is socketed on dropout iron core 32
Dropout spring.The MCU in PCB 70 for detecting and sending signal, ground-fault interrupter inner slide 40 is in cunning
The bottommost rested under block reset acting force of the spring in housing, the conductive silver point being fixed on the middle conducting strip on sliding block 40
50B and output end silver point 50C, left and right inserted sheet silver point 50A are off, and the bottom of reset button component 20 may pass through sliding block 40
Internal through hole, which moves downward, touches touching shell fragment 43, and MCU sends driving trip signal, makes electromagnetism after the energization of tripping coil 30
Gravitational attraction dropout iron core 32 moves backward, and reset key component 20 continues to be moved downwardly to contact center 13, and tripping coil 30 is disconnected
Electricity, dropout iron core 32 will pass through the ellipse of the circular hole insertion reset key component of sliding block 40 under the effect of tripping coil 30
Hole, dropout iron core 32 and sliding block 40 can also move up with reset key component 20 in the presence of back-moving spring 21, sliding block
Silver point 50B can also be moved up, and be contacted with silver point 50C, input 60, output end 61, and upper lid jack will form one to upper
Lid jack and output end supply access.
With reference to Fig. 2 and Fig. 3, reset button component 20 includes button cap 23, back-moving spring 21 and resets furcula 24, described to press
The head of keycap fixed reset furcula, reset furcula 24 and formed for conductive metal, one end is to be used to being socketed back-moving spring and solid
It is scheduled on button cap, the other end is the prong like 25 for connecting single chip circuit switching plate, positioned at the top of prong like
It is the hole 26 for being passed through for dropout iron core head, back-moving spring 21 is used for the position for resetting reset button component
Protected with reference to specific embodiment of the utility model to illustrate how reverse wiring, as shown in Figure 4 and Figure 5, if
Standby wiring is correct, and circuitry self test is in normal condition after energization.Now, the button cap 23 of reset button component is pressed, under button
Moving, the contact-making switch of reset button component lower return furca 23 closure, the monolithic human hair combing waste on circuit board 70 goes out a trigger signal,
Tripping coil 30 works, and is moved after making dropout iron core 32, and reset button component continues traveling downwardly, and when being pressed into bottom, decontrols button, multiple
Position button assembly is up under return spring force effect, meanwhile, tripping coil 30 also powers off, and dropout iron core is in dropout spring force
Effect is lower to be resetted, in dropout iron core head insertion back-moving spring elliptical aperture, then as reset key and with movable slider together on
OK, sliding block is up, and the silver point being fixed on sliding block is also up, respectively with upper apertures or so inserted sheet silver point and left and right output end silver
Point contact, load are powered with jack.
Specifically, original state during positive wiring is that sliding block 40 rests on most bottom under the active force of sliding block back-moving spring 43
Portion, it is fixed on the conductive silver point 50B on the middle conducting strip on sliding block 35 and output end silver point 50C, silver point 50A on the inserted sheet of left and right
It is off.
When applying pressure to reset key component 20, reset key component 20 moves downward, and then touches touching bullet
Piece 43,70 MCU will send driving trip signal after detecting this signal on circuit board, tripping coil 30 is worked, and thread off
Iron core 32 is moved (move from right to left) backward by the electromagnetic attracting force of tripping coil 30, causes reset key component in pressure
Under continue to move downward.
Reset key component 20 continues to be moved downwardly until that reset key component encounters center 13 under pressure.Reset
During moving down, tripping coil 30 can power off button assembly 20, and iron core 30 of threading off is in the spring of spring 31 unshakable in one's determination of threading off
In the presence of power, travel forward and (move from left to right).Reset key 20, can be in the effect of back-moving spring 21 without pressure
Under move up, the head for iron core 32 of threading off will pass through the oval hole position of the circular hole insertion reset key component 20 of sliding block 40
Put.
Reset key component 20 continues in the presence of back-moving spring 21, up resilience.And iron core 32 of threading off passes through sliding block
Reset key component 20 is inserted, so dropout iron core 32 and sliding block 40 also can follow reset key component 20 to move up.And
Lower silver point 50B is assembled into a component with sliding block 40, so silver point 50B can also be moved up, is connect with silver point (50A/50C)
Touch.At this moment input 60, output end 61, the jack of upper lid 11 will form a complete path, to the upper jack of lid 11 and output
The power supply of end 61.
With reference to Fig. 2 and 3, if the power input for the GFCI for passing through this circuit design and output end are reversed, this single-chip microcomputer
The basic no power of circuit, when reset button component is pressed, its underpart resets furcula and touches switch closure, but because circuit is obstructed
Electricity, single-chip microcomputer do not work, and tripping coil will not act, and dropout iron core will not also act, thus RESET buttons can not be pressed normally
Under, reset button component resets after loosing one's grip is in initial position all the time, and input is always maintained at off-state with output end.
Specifically, original state during reverse wiring：Sliding block 40 rests on most bottom under the active force of sliding block back-moving spring 43
Portion, it is fixed at the conductive silver point 50B on the middle conducting strip on sliding block 40 and output end silver point 50C, left and right inserted sheet silver point 50A
In off-state.
When applying pressure to reset key component 20, reset key component 20 moves downward if reversely connecing, circuit
Out of power will not work, and tripping coil 30 will not act, and iron core 32 of threading off can withstand reset key component 20, cause reset key
Component 20 can not continue to move downward, and dropout iron core 32 can not be inserted in the elliptical aperture of the bottom of reset key component 20.Lose pressure
After power, reset key component 20 is understood is returned to original state under the active force of back-moving spring 21 again.
In specific embodiment of the utility model, touch shell fragment 43 and formed by having springy sheet metal, the sheet metal
Positioned at side, reset key component 20 is contacted to determine whether reset key component is pressed with touching the sheet metal of shell fragment side
, the prior art that compares all is for the mode being arranged above and below sets reset key and touches shell fragment, and this practicality is new
The structure of type is simple, sets compact between structure, saves inner space, reduces product height, strengthens the practical model of product
Enclose.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of earthing or grounding means with reverse wiring protection function, including housing, input, output end, set on housing multiple
Position button assembly, the ground-fault interrupter also include the dropout iron core for being arranged on enclosure interior and connected with dropout iron core afterbody
The tripping coil spring connect, the single chip microcomputer circuit board for detecting and sending trip signal, and some silver points for being used to turn on, shell
Internal sliding block is arranged on the bottom in housing under sliding block action of reset spring power, it is characterised in that the SR group
Part includes button cap, back-moving spring and resets furcula, the head of the button cap fixed reset furcula, and the reset furcula is to lead
The metal of electricity is formed, and one end is to be used to be socketed back-moving spring and be fixed on button cap, and the other end is to be used to connect monolithic electromechanics
The prong like of road switching plate, is the hole for being passed through for dropout iron core head above prong like, the reset bullet
Spring is used to reset button component returning to initial position.
2. there is the earthing or grounding means of reverse wiring protection function according to claim 1, it is characterised in that the reset furcula
Contact touching shell fragment is spacing.
3. there is the earthing or grounding means of reverse wiring protection function according to claim 2, it is characterised in that the reset furcula
The side of contact touching shell fragment.
4. there is the earthing or grounding means of reverse wiring protection function according to claim 1, it is characterised in that inside the sliding block
The through hole passed through for resetting furcula is set.
5. there is the earthing or grounding means of reverse wiring protection function according to claim 1, it is characterised in that when being not powered on or defeated
Enter end, output end it is reversed when, the head of dropout iron core is spacing through the forked position for resetting furcula.
6. there is the earthing or grounding means of reverse wiring protection function according to claim 1, it is characterised in that according to circuit board list
The trip signal that piece machine is sent, when tripping coil is powered, dropout iron core is in magnetic force
Effect is lower to be released to the spacing of the forked part of reset furcula, and when tripping coil is off-position, dropout iron core is in its tail
The elastic force effect of the dropout spring in portion is lower will to insert the hole for resetting furcula.
7. there is the earthing or grounding means of reverse wiring protection function according to claim 6, it is characterised in that the dropout iron core
Head be cylinder, reset the hole of furcula for ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171494.9U CN207199849U (en) | 2017-02-23 | 2017-02-23 | A kind of earthing or grounding means with reverse wiring protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171494.9U CN207199849U (en) | 2017-02-23 | 2017-02-23 | A kind of earthing or grounding means with reverse wiring protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207199849U true CN207199849U (en) | 2018-04-06 |
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ID=61792364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720171494.9U Active CN207199849U (en) | 2017-02-23 | 2017-02-23 | A kind of earthing or grounding means with reverse wiring protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN207199849U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840586A (en) * | 2023-04-12 | 2023-10-03 | 广州计测检测技术股份有限公司 | Electronic equipment intelligent detection device |
-
2017
- 2017-02-23 CN CN201720171494.9U patent/CN207199849U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116840586A (en) * | 2023-04-12 | 2023-10-03 | 广州计测检测技术股份有限公司 | Electronic equipment intelligent detection device |
| CN116840586B (en) * | 2023-04-12 | 2023-12-22 | 广州计测检测技术股份有限公司 | Electronic equipment intelligent detection device |
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