CN206353513U - A kind of earth leakage protective device - Google Patents
A kind of earth leakage protective device Download PDFInfo
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- CN206353513U CN206353513U CN201621373486.4U CN201621373486U CN206353513U CN 206353513 U CN206353513 U CN 206353513U CN 201621373486 U CN201621373486 U CN 201621373486U CN 206353513 U CN206353513 U CN 206353513U
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- movable contact
- auxiliary switch
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Abstract
The utility model is related to a kind of earth leakage protective device, including upper lid, base and cartridge assemblies, cartridge assemblies, in addition to：Movable contact spring；Auxiliary switch；Release link, the bottom of release link is provided with release link grab, and the bottom of release link props up back-moving spring one end, and the back-moving spring other end props up base；Electrical apparatus release, the top of electrical apparatus release is provided with electrical apparatus release grab, and electrical apparatus release grab can mutually be clasped with release link grab in vertical direction；The side of electrical apparatus release is provided with the tripping coil for including dropout iron core, and electrical apparatus release can produce lateral shift in the presence of the dropout iron core；Wherein, electrical apparatus release push rod and electrical apparatus release pull bar are additionally provided with electrical apparatus release, electrical apparatus release push rod is used to control the auxiliary switch, and electrical apparatus release pull bar is used to control movable contact spring.The utility model beneficial effect is：Coordinated using electrical apparatus release and the grab of release link, the reseting procedure and dropout process of earth leakage protective device can be reliably achieved.
Description
Technical field
The utility model is related to a kind of earth leakage protective device.
Background technology
The small household appliance such as hair dryer largely all employ earth leakage protective device both at home and abroad at present, be leaked electricity in circuit
During failure, creepage protection function is realized.
In existing earth leakage protective device, in its cartridge assemblies used, often it there are problems that as follows：How to adopt
With electromechanical structure, it is impossible to be reliably achieved the reseting procedure and dropout process of earth leakage protective device.
It is complicated although having there are some such devices to emerge now, or reliability is good, can not be fine
Meet user's request.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of earth leakage protective device, including upper lid, base and includes electricity
The cartridge assemblies of road plate, the cartridge assemblies, in addition to：
Movable contact spring, for controlling load circuit to be switched on or switched off；
Auxiliary switch, for controlling auxiliary switching circuit to be switched on or switched off；
Release link, the top of the release link is connected with SR, and the bottom of the release link is provided with release link card
Hook, the bottom of the release link props up back-moving spring one end, and the back-moving spring other end props up base；
Electrical apparatus release, the top of the electrical apparatus release is provided with electrical apparatus release grab, and the electrical apparatus release grab can reset with described
Bar grab is mutually clasped in vertical direction；The side of the electrical apparatus release is provided with the tripping coil for including dropout iron core, the electricity
Road plate can control the tripping coil, and the electrical apparatus release can produce lateral shift in the presence of the dropout iron core, make
The release link grab is obtained to disengage in vertical direction and the electrical apparatus release grab；Wherein, it is additionally provided with dropout on the electrical apparatus release
Device push rod and electrical apparatus release pull bar, the electrical apparatus release push rod are used to control the auxiliary switch, and the electrical apparatus release pull bar is used to control
The movable contact spring.
Preferably, the cartridge assemblies also include dropout spring, and one end of the dropout spring props up the dropout iron
Core, the other end of the dropout spring props up magnet ring lid；Groove is provided with the middle part of the electrical apparatus release, the dropout iron core takes off with described
One end of button device connection can be snapped onto in the groove, enable the dropout iron core is synchronous with the electrical apparatus release to occur laterally
Skew.
Preferably, the electrical apparatus release push rod is located at the lower section of the auxiliary switch, and the electrical apparatus release pull bar is located at described
The lower section of movable contact spring,
When the electrical apparatus release push rod props up the auxiliary switch upwards, the auxiliary switching circuit is connected, when described de-
When button device push rod does not contact the auxiliary switch, the auxiliary switching circuit disconnects；
When the electrical apparatus release pull bar props up the movable contact spring upwards, the load circuit is connected, when the electrical apparatus release is drawn
When bar does not contact the movable contact spring, the load circuit disconnects.
Preferably, auxiliary switch stationary contact is arranged on the circuit board, and one end of the auxiliary switch is also secured at
On the circuit board, when the electrical apparatus release push rod props up the auxiliary switch upwards, auxiliary switch movable contact and auxiliary switch
Stationary contact is contacted, and the auxiliary switching circuit is connected；
Plug blades are through the base and stretch out, when the electrical apparatus release pull bar props up the movable contact spring upwards, movable contact spring
It is in contact with the electric contact in plug blades, the load circuit is connected.
Preferably, the other end not being fixed on the circuit board of the auxiliary switch is in cantilever-shaped, cantilever end points
Place is provided with auxiliary switch movable contact, is cooperated with the auxiliary switch stationary contact.
Preferably, the cantilever part of the auxiliary switch is flexible, the auxiliary switch movable contact under its free state
Disconnected with the auxiliary switch stationary contact.
Preferably, the movable contact spring includes live wire movable contact spring and zero line movable contact spring, and live wire is respectively equipped with respective end
Movable contact spring contact and zero line movable contact spring contact, be respectively used to on the live wire electric contact and zero line plug blades in live wire plug blades
Zero line contact or disconnection.
Preferably, the live wire movable contact spring and zero line movable contact spring are respectively provided with elasticity, the live wire under its free state
Movable contact spring contact and the zero line movable contact spring contact disconnect with the live wire electric contact and the zero line electric contact respectively.
The utility model also provides a kind of earth leakage protective device, including upper lid, base and the cartridge assemblies comprising circuit board, institute
Stating cartridge assemblies includes release link, and the top of the release link is provided with vertical transparent indicator lamp light guide sheet, the release link
Interfixed with SR, when SR is pressed, the indicator lamp light guide sheet therein can reflect indicator lamp hair
The light gone out, the head of the indicator lamp light guide sheet passes through the circuit board, and the finger can be observed by SR
Show the light of lamp light guide sheet reflection.
Preferably, the SR offers indicator lamp hole, and the head of the indicator lamp light guide sheet is embedded in described
In the indicator lamp hole of SR.
What the utility model can be obtained has the technical effect that：Coordinated using electrical apparatus release and the grab of release link, can be reliable
Realize the reseting procedure and dropout process of earth leakage protective device in ground.In addition, additionally it is possible to by the setting of indicator lamp light guide sheet, lead to
The indicator lamp hole crossed on SR, it was observed that product state in which or it is met the problem of.
Brief description of the drawings
Use state schematic diagram when Fig. 1 is earth leakage protective device of the present utility model external hair dryer.
Fig. 2 is the exploded view of earth leakage protective device of the present utility model.
Fig. 3 is the side schematic view that earth leakage protective device of the present utility model is under closure state.
Fig. 4 is the side schematic view under earth leakage protective device of the present utility model is off.
Fig. 5 is the inside schematic perspective view under a visual angle under the open mode of earth leakage protective device of the present utility model.
Fig. 6 is the inside solid signal under another visual angle under the open mode of earth leakage protective device of the present utility model
Figure.
Reference：The indicator lamp hole of 101 test button hole of upper 1 SR hole of lid, 102 base, 2 SR 3
The live wire electric contact 601 of 301 test button, 4 zero line plug blades, 5 zero line electric contact, 501 welded post, 502 live wire plug blades 6
The indicator lamp light guide sheet 11 of 10 reset guide hole of welded post 602 line card, 7 out-put supply line, 8 test spring, 9 circuit board 1001
The indicator lamp 13 of indicator lamp light guide sheet inclined-plane 1101 release link, 12 release link grab, 1201 release link light guide sheet neck 1202 is answered
The auxiliary switch stationary contact 18 of position 17 auxiliary switch movable contact of spring 14 tripping coil, 15 dropout iron core, 16 auxiliary switch 1701
The zero line of 1903 electrical apparatus release push rod of electrical apparatus release 19 electrical apparatus release pull bar, 1901 electrical apparatus release pull bar, 1902 electrical apparatus release grab 1904 is dynamic to be touched
The live wire movable contact spring electric contact of 20 zero line movable contact spring electric contact of piece, 2,001 2002 live wire movable contact spring of zero line movable contact spring pad 21
The hair dryer 50 of 2101 24 dropout spring of live wire movable contact spring pad 2102 magnetic ring component, 22 magnet ring lid, 23 trip bolt 25
Embodiment
In the detailed description of following embodiment, illustrated with reference to the accompanying drawing for the part for constituting the description.It is attached
Figure shows specific embodiment in an illustrative manner, and the utility model is implemented in these embodiments.Shown
Embodiment is not configured to limit according to all embodiments of the present utility model.It is appreciated that other embodiments can be with
It is utilized, structural or logicality change can be made on the premise of scope of the present utility model is not departed from.For attached
Figure, the term of directionality such as " under ", " on ", "left", "right", is used with reference to the orientation of described accompanying drawing.By
It can be implemented in the component of embodiment of the present utility model with a variety of orientation, these directional terminologies are the mesh for explanation
, rather than the purpose limited.Therefore, following embodiment is not used as the meaning of limitation, and this practicality is new
The scope of type is defined by the appended claims.
Earth leakage protective device of the present utility model can be using external various electrical appliances as load, than as shown in figure 1, being external electricity
Dry 50 when use state.
On the specific detailed construction of earth leakage protective device, the part decomposition situation that Fig. 2 explosive view is shown is may be referred to,
With reference to Fig. 5 and Fig. 6 earth leakage protective device open mode under inner case, and be aided with Fig. 3 and Fig. 4 closure and off-state
Two kinds of different operating situations, understood.
As depicted in figs. 1 and 2, in the preferred earth leakage protective device of the utility model, including upper lid 1, base 2 and movement group
Part.As shown in Fig. 2 of the present utility model be mainly characterized by release link 12 and the construction and arrangement mode of electrical apparatus release 19.
As shown in Fig. 2 offering reset guide hole 1001 on circuit board 10, release link 12 can pass through this reset guide hole
1001.The top of release link 12 is fixedly linked with SR 101, preferably, and the top of release link 12 is provided with vertically saturating
Bright indicator lamp light guide sheet 11, preferably, indicator lamp light guide sheet 11 are arranged in release link light guide sheet neck 1202.Release link
12 interfix with SR 3.SR 3 offers indicator lamp hole 301, and the head of indicator lamp light guide sheet 11 is embedded in again
In the indicator lamp hole 301 of position button 3.If it should be noted that SR 3 is transparent in itself, then can also be not provided with referring to
Show lamp hole 301, user directly can observe light below by transparent SR 3, this be also this practicality newly
Type is intended to the scope of protection.When SR 3 is pressed, the therein of indicator lamp light guide sheet 11 can reflect indicator lamp 13 and send
Light, the head of indicator lamp light guide sheet 11 passes through circuit board 10, and can observe indicator lamp light guide sheet by SR 3
The light of 11 reflections.It is pointed out that the light that the therein of indicator lamp light guide sheet 11 reflection indicator lamp 13 is sent, can take many
The form of kind is achieved, such as：The first set-up mode (as shown in Figure 2) is：The bottom of indicator lamp light guide sheet 11 is indicator lamp
Light guide sheet inclined-plane 1101 (plane or inclined-plane, angle are most preferably 45 degree, can also be in 30-60 degree preferably), now, warp
The light path that indicator lamp light guide sheet inclined-plane 1101 reflects can be running vertically upwards along the therein of indicator lamp light guide sheet 11, can
This light is observed by the indicator lamp hole 301 of SR 3；Second of set-up mode (not shown) be：From indicator lamp
13 incident lights sent and horizontal direction one upward angle (can be with very little, such as 1-20 degree) of formation, now, this incident light
Line can repeatedly carry out light path reflection between vertical double (many) sides medial surface of indicator lamp light guide sheet 11, and be communicated up light simultaneously
Road, until light reach SR 3 indicator lamp hole 301 at, by user it was observed that；Above two set-up mode shows
Example property, can also be used in combination, and be that the utility model is intended to the scope of protection, but does not constitute the utility model set herein
Put the limitation of mode, if here using other various light path transfer modes also belong to the utility model be intended to protection domain it
It is interior.The bottom of release link 12 is provided with release link grab 1201, and the bottom of release link 12 props up the one end of back-moving spring 14, resets bullet
The other end of spring 14 props up base 2.
As shown in Fig. 2 the top of electrical apparatus release 19 is provided with electrical apparatus release grab 1903, electrical apparatus release grab 1903 can be with reset
Bar grab 1201 is mutually clasped in vertical direction.The example face of electrical apparatus release 19 is provided with tripping coil 15, and tripping coil 15 includes
Dropout iron core 16, preferably, one end of dropout spring 25 prop up this dropout iron core 16, and the other end of dropout spring 25 props up magnetic
Ring cowling 23.About the position of magnet ring lid 23, may be referred to Fig. 3 and Fig. 4, it is in fact possible to magnet ring lid 23 be interpreted as upper lid 1 or
Some fixed position on base 2, if the other end of dropout spring 25 is propped up upper lid 1 or base 2 is also possible, also belongs to
The intention being claimed in the utility model.From Fig. 2, it can be seen that the preferred embodiment of electrical apparatus release 19, the middle part of electrical apparatus release 19 is set
There is U-shaped groove, a scrobicular ring is provided with the one end fits that dropout iron core 16 is connected with electrical apparatus release 19, this of dropout iron core 16 is recessed
Ring can be just snapped onto in the groove of electrical apparatus release 19, make dropout iron core 16 is synchronous with electrical apparatus release 19 to occur lateral shift.Circuit
Circuit is disposed with plate 10, the electric current in tripping coil 15 can be controlled, and then dropout iron core 16 is occurred lateral shift, by
This, electrical apparatus release 19 can produce lateral shift in the presence of dropout iron core 16 so that release link grab 1201 is in vertical direction
Disengaged with electrical apparatus release grab 1903.It is understood that lateral shift herein is a wide implication, such as in transverse direction
While offseting certain distance, some rotations also occur for electrical apparatus release 19, are also allowed, and fall within the utility model described herein
Lateral shift within the scope of.
As shown in Fig. 2 being provided with auxiliary switch stationary contact 18 on the circuit board 10, one end of auxiliary switch 17 is also secured at
On this circuit board 10.Preferably, the other end do not fixed on the circuit board 10 of auxiliary switch 17 is in cantilever-shaped, cantilever end points
Place is provided with auxiliary switch movable contact 1701, is cooperated with auxiliary switch stationary contact 18, the cantilever part of auxiliary switch 17 has
Auxiliary switch movable contact 1701 under elasticity, its free state disconnects with auxiliary switch stationary contact 18.
Fig. 2 is observed, and combines Fig. 3, Fig. 4 and Fig. 5, Fig. 6, the top side of electrical apparatus release 19 is provided with electrical apparatus release push rod 1904,
Electrical apparatus release push rod 1904 is located at the lower section of auxiliary switch 17, when electrical apparatus release push rod 1904 props up auxiliary switch 17 upwards, auxiliary
Switch movable contact point 1701 and auxiliary switch stationary contact 18 are contacted, and auxiliary switching circuit is connected, when electrical apparatus release push rod 1904 is not contacted
During auxiliary switch 17, auxiliary switching circuit disconnects.The bottom bilateral of electrical apparatus release 19 be respectively arranged with electrical apparatus release pull bar 1901,
1902, electrical apparatus release pull bar 1901,1902 is located at the lower section of live wire movable contact spring 21 and zero line movable contact spring 20 respectively, when electrical apparatus release pull bar
1901st, 1902 upwards when being respectively held against live wire movable contact spring 21 and zero line movable contact spring 20, and the live wire movable contact spring of both respective ends is touched
Point 2101 and zero line movable contact spring contact 2001 respectively with the live wire electric contact 601 and zero line plug blades 5 in live wire plug blades 6
Zero line electric contact 501 is contacted, and now load circuit is connected.Live wire movable contact spring 21 and zero line movable contact spring 20 are respectively provided with elasticity, and it is certainly
Live wire movable contact spring contact 2101 and zero line movable contact spring contact 2001 under state are touched with live wire electric contact 601 and zero line electricity respectively
Point 501 disconnects, namely load circuit disconnects.
It is pointed out that in preferred embodiment of the present utility model, while live wire and zero line have been respectively adopted de-
The setting of device pull bar 1901,1902 is detained, and has corresponded to live wire movable contact spring 21 and zero line movable contact spring 20 respectively.In practice
In, only can also to live wire or only take zero line the setting of electrical apparatus release pull bar, and only accordingly using live wire movable contact spring or
One of zero line movable contact spring, this is also one of technical scheme that the utility model is intended to protection.
The main feature of the utility model earth leakage protective device described in detail above, especially release link 12 and electrical apparatus release 19
Construction and arrangement mode；The operation principle of the utility model earth leakage protective device described in detail below, can be with Fig. 2,3,4
Lead, and understood with reference to Fig. 5,6.In interpreting blueprints, it should be noted that Fig. 2 and Fig. 3,4 left and right directions are conversely put,
Fig. 5 has been placed on upper lid 1 position on the lower, preferably to show its internal situation.
First, the reset principle and process of the utility model earth leakage protective device are described.As shown in Figure 2,3, 4, when plug is inserted
After entering into power outlet, SR 3 is pressed, because release link 12 links together with SR 3, release link 12 is together
Move down, when moving down into certain position, the release link grab 1201 in release link 12 can hook de- on electrical apparatus release 19
Detain device grab 1903.It is noted that in fig. 2, the bottom of release link grab 1201 is an inclined-plane, release link grab 1201
Inner fovea part be in plane hook-type；Correspondingly, the top of electrical apparatus release grab 1903 is also an inclined-plane, electrical apparatus release grab
1903 inner fovea part is also in plane hook-type.Therefore, when one of release link 12 and electrical apparatus release 19 itself or both have to a certain degree
In the case of elastic, above-mentioned two inclined-plane can be slided mutually, untill above-mentioned two plane hook-type is hooked mutually, now multiple
Position bar 12 and electrical apparatus release 19 return to vertical state again under respective elastic reaction.Simultaneously as de- mouth spring 25 is withstood all the time
Dropout iron core 16, and dropout iron core 16 is moved right with the synchronous horizontal of electrical apparatus release 19, so that the He of electrical apparatus release grab 1903
Release link grab 1201 can be hooked mutually without unclamping.Now, under the active force of back-moving spring 14, release link 12 can be answered
Position spring 14 up jack-up, so as to pull electrical apparatus release 19 up to move together, electrical apparatus release pull bar 1901,1902 can respectively with
Zero line movable contact spring 20 and live wire movable contact spring 21 are up moved together, until the zero line movable contact spring contact 2001 on zero line movable contact spring 20
With the live wire movable contact spring contact 2101 on live wire movable contact spring 21 respectively with the zero line electric contact 501 and live wire electric contact in plug blades
601 contacts, complete the electrically connected of load circuit, i.e., from Fig. 4 state changes to Fig. 3 states.At the same time, in this resetting structure
In also have an auxiliary circuit connection, it is defeated help the one end of switch movable contact piece 17 welding on the circuit board 10, the other end riveting have auxiliary
Help switch movable contact point 1701, auxiliary switch stationary contact 18 be welded to it is above circuit board 10 and with the circuit phase on circuit board 10
Even.When electrical apparatus release 19 is up moved, the electrical apparatus release push rod 1904 set on electrical apparatus release 10 can help switch movable contact piece 17 past defeated
Upper jack-up, makes auxiliary switch movable contact 1701 thereon be contacted with auxiliary switch stationary contact 18, so as to complete auxiliary switch electricity
Road it is electrically connected.
It is worth noting that, when SR 3 keeps down state, the light that indicator lamp 13 now is sent, just according to
The guide-lighting inclined-plane 1101 of indicator lamp of the bottom of indicator lamp light guide sheet 11 is mapped to, light is after reflection along the court of indicator lamp light guide sheet 11
Advanced to vertical top.It is appreciated that be specifically described by taking the first above-mentioned set-up mode as an example herein, set for second
Put for mode (not shown), be also all fours, i.e., between double (many) sides medial surface of the light through indicator lamp light guide sheet 11
Repeatedly carry out after light path reflection, advanced towards the top of indicator lamp light guide sheet 11.Because SR 3 offers indicator lamp hole 301
And the head of indicator lamp light guide sheet 11 is embedded in the indicator lamp hole 301 of SR 3, therefore this light can be observed with the naked eye
Line.When being broken down after pressing SR 3 and resetting product or in product circuit, indicator lamp 13 can be lighted, generation
The light of different colours just reflexes to SR surface through indicator lamp light guide sheet 11, so as to point out consumer products state in which
Or it is met the problem of.
Secondly, the dropout principle and process of the utility model earth leakage protective device are described.As shown in Figure 2,3, 4, when pressing examination
Simulation leakage current is produced when testing button 4, in hookup, controllable silicon is triggered through magnetic ring component 22 and the IC amplified signal exported
(preferred embodiment), makes controlled silicon conducting so that tripping coil 15 obtains electric, as shown in figure 4, dropout iron core 16 can turn right (due to figure
4 and Fig. 2 is heterochiral view, also then corresponds to being moved to the left in Fig. 2) move and pull open electrical apparatus release 19, make electrical apparatus release 19
On electrical apparatus release grab 1903 and release link 12 on release link grab 1201 disengage after, work of the release link 12 in back-moving spring 14
Under firmly, pop up, electrical apparatus release 19 is quick under the respective elastic force effect of itself of zero line movable contact spring 20 and live wire movable contact spring 21
Move down, namely the zero line movable contact spring 20 and live wire movable contact spring 21 shown in Fig. 4 are under its respective nature, due to
Be Fig. 4 be side view reason, the situation of live wire movable contact spring 21 can only be observed.Thus, until zero on zero line movable contact spring 20
Live wire movable contact spring contact 2101 on line movable contact spring contact 2001 and live wire movable contact spring 21 will respectively with zero line electric contact 501 and
Live wire electric contact 601 disconnects, so as to complete the electric power disjunction of load circuit.At the same time, auxiliary switch movable contact spring 17 due to
After the active force of electrical apparatus release upper ejector pin 1904 is cancelled, auxiliary switch movable contact 1701 is disconnected in the presence of its own elastic force and auxiliary
Help the electrically connected of switch stationary contact point 18, namely the auxiliary switch movable contact spring 17 shown in Fig. 4 is under its nature.
What the utility model can be obtained has the technical effect that：Coordinated using electrical apparatus release and the grab of release link, can be reliable
Realize the reseting procedure and dropout process of earth leakage protective device in ground.In addition, additionally it is possible to by the setting of indicator lamp light guide sheet, lead to
The indicator lamp hole crossed on SR, it was observed that product state in which or it is met the problem of.
Those skilled in the art will be understood that above-described embodiment is illustrative and not restrictive.In not be the same as Example
The different technologies feature of middle appearance can be combined, to obtain beneficial effect.Those skilled in the art are in studying accompanying drawing, explanation
On the basis of book and claims, the embodiment of other changes of disclosed embodiment is will be understood that and realized.Right will
Any reference in asking is understood not to limiting of its scope.Some technical characteristics appear in different subordinates
It is not meant to these technical characteristics can not be combined to obtain beneficial effect in claim.
Claims (10)
1. a kind of earth leakage protective device, including upper lid (1), base (2) and the cartridge assemblies for including circuit board (10), its feature exist
In,
The cartridge assemblies, in addition to：
Movable contact spring (20,21), for controlling load circuit to be switched on or switched off；
Auxiliary switch (17), for controlling auxiliary switching circuit to be switched on or switched off；
Release link (12), the top of the release link (12) is connected with SR (101), and the bottom of the release link (12) is set
Release link grab (1201) is equipped with, the bottom of the release link (12) props up back-moving spring (14) one end, the back-moving spring
(14) other end props up base (2)；
Electrical apparatus release (19), the top of the electrical apparatus release (19) is provided with electrical apparatus release grab (1903), the electrical apparatus release grab
(1903) can mutually it be clasped in vertical direction with the release link grab (1201)；The side of the electrical apparatus release (19) is provided with
Tripping coil (15) comprising dropout iron core 16, the circuit board (10) can control the tripping coil (15), described to thread off
Device (19) can produce lateral shift in the presence of the dropout iron core (16) so that the release link grab (1201) is perpendicular
Nogata is disengaged to the electrical apparatus release grab (1903)；Wherein, it is additionally provided with electrical apparatus release push rod on the electrical apparatus release (19)
(1904) and electrical apparatus release pull bar (1901,1902), the electrical apparatus release push rod (1904) is used to control the auxiliary switch (17), institute
Stating electrical apparatus release pull bar (1901,1902) is used to control the movable contact spring (20,21).
2. earth leakage protective device as claimed in claim 1, it is characterised in that
The cartridge assemblies also include dropout spring (25), and one end of the dropout spring (25) props up the dropout iron core
(16), the other end of the dropout spring (25) props up magnet ring lid (23)；
Groove is provided with the middle part of the electrical apparatus release (19), the dropout iron core (16) can with one end that the electrical apparatus release (19) is connected
Snap onto in the groove, make the dropout iron core (16) being capable of generation lateral shift synchronous with the electrical apparatus release (19).
3. earth leakage protective device as claimed in claim 1, it is characterised in that the electrical apparatus release push rod (1904) is located at the auxiliary
The lower section of (17) is switched, the electrical apparatus release pull bar (1901,1902) is located at the lower section of the movable contact spring (20,21),
When the electrical apparatus release push rod (1904) props up the auxiliary switch (17) upwards, the auxiliary switching circuit is connected, when
When the electrical apparatus release push rod (1904) does not contact the auxiliary switch (17), the auxiliary switching circuit disconnects；
When the electrical apparatus release pull bar (1901,1902) props up the movable contact spring (20,21) upwards, the load circuit is connected,
When the electrical apparatus release pull bar (1901,1902) does not contact the movable contact spring (20,21), the load circuit disconnects.
4. earth leakage protective device as claimed in claim 3, it is characterised in that
Auxiliary switch stationary contact (18) is arranged on the circuit board (10), and one end of the auxiliary switch (17) is also secured at institute
State on circuit board (10), when the electrical apparatus release push rod (1904) props up the auxiliary switch (17) upwards, auxiliary switch is dynamic to be touched
Point (1701) and auxiliary switch stationary contact 18 are contacted, and the auxiliary switching circuit is connected；
Plug blades are through the base 2 and stretch out, when the electrical apparatus release pull bar (1901,1902) props up the movable contact spring upwards
When (20,21), movable contact spring (20,21) is in contact with the electric contact in plug blades, and the load circuit is connected.
5. earth leakage protective device as claimed in claim 4, it is characterised in that the auxiliary switch (17) is not fixed on the electricity
The other end on road plate (10) is provided with auxiliary switch movable contact (1701), with the auxiliary switch in cantilever-shaped at cantilever end points
Stationary contact (18) cooperates.
6. earth leakage protective device as claimed in claim 5, it is characterised in that the cantilever part of the auxiliary switch (17) has bullet
Property, the auxiliary switch movable contact (1701) under its free state disconnects with the auxiliary switch stationary contact (18).
7. earth leakage protective device as claimed in claim 1, it is characterised in that the movable contact spring includes live wire movable contact spring (21) and zero
Line movable contact spring (20), live wire movable contact spring contact (2101) and zero line movable contact spring contact (2001) are respectively equipped with respective end, point
It Yong Yu not connect with the zero line electric contact (501) on the live wire electric contact (601) and zero line plug blades (5) in live wire plug blades (6)
Touch or disconnect.
8. earth leakage protective device as claimed in claim 7, it is characterised in that
The live wire movable contact spring (21) and zero line movable contact spring (20) are respectively provided with elasticity, the live wire movable contact spring under its free state
Contact (2101) and the zero line movable contact spring contact (2001) respectively with the live wire electric contact (601) and the zero line electric contact
(501) disconnect.
9. a kind of earth leakage protective device, including upper lid (1), base (2) and the cartridge assemblies for including circuit board (10), the movement group
Part includes release link (12), it is characterised in that the top of the release link (12) is provided with vertical transparent indicator lamp light guide sheet
(11), the release link (12) interfixes with SR (3), when SR (3) is pressed, the indicator lamp light guide sheet
(11) therein can reflect the light that indicator lamp (13) is sent, and the head of the indicator lamp light guide sheet (11) passes through the circuit
Plate (10), and the light that the indicator lamp light guide sheet (11) is reflected can be observed by SR (3).
10. earth leakage protective device as claimed in claim 9, it is characterised in that the SR (3) offers indicator lamp hole
(301), the head of the indicator lamp light guide sheet (11) is embedded in the indicator lamp hole (301) of the SR (3).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373486.4U CN206353513U (en) | 2016-12-14 | 2016-12-14 | A kind of earth leakage protective device |
| US15/592,674 US10170265B2 (en) | 2016-12-14 | 2017-05-11 | Leakage current protection device |
| US15/808,839 US10770844B2 (en) | 2016-12-14 | 2017-11-09 | Leakage current protection device for power plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621373486.4U CN206353513U (en) | 2016-12-14 | 2016-12-14 | A kind of earth leakage protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206353513U true CN206353513U (en) | 2017-07-25 |
Family
ID=59347146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621373486.4U Active CN206353513U (en) | 2016-12-14 | 2016-12-14 | A kind of earth leakage protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206353513U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231499A (en) * | 2016-12-14 | 2018-06-29 | 苏州益而益电器制造有限公司 | A kind of earth leakage protective device |
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2016
- 2016-12-14 CN CN201621373486.4U patent/CN206353513U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108231499A (en) * | 2016-12-14 | 2018-06-29 | 苏州益而益电器制造有限公司 | A kind of earth leakage protective device |
| CN108231499B (en) * | 2016-12-14 | 2020-02-21 | 苏州益而益电器制造有限公司 | Leakage protector |
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