CN204615359U - Quan Xiao Dingan County type earth leakage protective device - Google Patents
Quan Xiao Dingan County type earth leakage protective device Download PDFInfo
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- CN204615359U CN204615359U CN201520092644.8U CN201520092644U CN204615359U CN 204615359 U CN204615359 U CN 204615359U CN 201520092644 U CN201520092644 U CN 201520092644U CN 204615359 U CN204615359 U CN 204615359U
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Abstract
The utility model relates to Quan Xiao Dingan County type earth leakage protective device, technical scheme used: at the input (V of anti-circuit out of control (A|C)
ior V
i) and the upper limit end (V is set
hor V
h) connect zero sequence current mutual inductor secondary coil n3 and resistance R1 series loop, at its input (V
ior V
i) also energising appearance C1 is put, at its homophase or positive output end (V to circuit ground end (GND) serial connection
tOor V
zOor V
oor V
o1) and reversed-phase output (V
fOor DIS or Q or V
o2) arrange drive circuit and or executive circuit, and the AC power of executive circuit control load (electrical appliance).The beneficial effects of the utility model: no matter itself state is normal or abnormal, can carry out fully and effectively leaking electricity or electrical shock protection, necessarily ensure personal safety all the time.Therefore the utility model is a kind of Quan Xiao Dingan County type earth leakage protective device, has important practical value and social benefit.
Description
Technical field
The utility model relates to a kind of electric shock or earth leakage protective device, and particularly no matter itself state is normal or abnormal to one, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.
Background technology
In order to examine novelty of the present utility model, designer has consulted a large amount of correlation technique data (professional book, newpapers and periodicals), also retrieved Patents document.Existing old-fashioned earth leakage protective device is of a great variety; to the electric leakage of load or electrical appliance or get an electric shock and all substantially can carry out available protecting control when normal; but generally potential fatal defect: if when abnormal failure occurs for itself; its defencive function will lose efficacy and form jumping of refusing out of control; meet electric leakage or get an electric shock and can not cut off the AC power of load or electrical appliance in time, also just can not protect electric shock person's safety.In reality, any electronic product is again abnormal failure can occur unavoidably, and such as: the secondary coil of zero sequence current mutual inductor H and tripping coil are that broken string or short trouble the most easily occur, or open circuit occurs in circuit somewhere or short trouble is also common.Now, meeting leakage current signal can not trigger control circuit action and being formed refuse to jump, and can not cut off load supplying in time, lose leakage protection, this is this field unheeded technical barrier of a specified duration.Therefore, whether existing earth leakage protective device all only has and arranges test button and check its safety protection function effective, and warns user's periodic inspection effect.Vacation that this just allows partial function lose efficacy peace earth leakage protective device, at electric online operation, to lie dormant fatal danger to the person but in actual use, user often ignores or forgets or be inconvenient to carry out validity check! On the contrary, people also think that it is safely and effectively by mistake, so existing old-fashioned earth leakage protective device, when extraordinary failure, electric shock casualty accident easily occurs.
Summary of the invention
The utility model mainly solves existing old-fashioned earth leakage protective device and special core control circuit thereof, often loses efficacy out of control because of abnormal failure own, and can not cut off load supplying in time, there is the technical problem of potential safety hazard, serious threat personal safety; There is provided a kind of no matter itself state is normal or abnormal, " effect " protection, " earth leakage protective device " that one " determining " guarantee " peace " is complete can be had, hereinafter referred to as " Quan Xiao Dingan County type earth leakage protective device " in " complete " face.When abnormal failure occurs for itself, can not there is inefficacy out of control, also timely and effectively reliably can carry out protecting control, force the AC power of disconnecting consumers or electrical appliance in the utility model, can avoid electric leakage or electric shock accidents completely, guarantee personal safety all the time.
The thinking and countermeasure that the utility model solves the problems of the technologies described above is: in case circuit out of control (AIC) is nucleus module circuit, with its input (V
ior V
i) and the upper limit end (V is set
hor V
h) connect zero sequence current mutual inductor secondary coil n3 and resistance R1 series loop, its input (V
ior V
i) also hold (GND) serial connection to put energising appearance C1 to circuit; With the contrary output connection control drive circuit of two phase place and or executive circuit, and the AC power of executive circuit control load (electrical appliance).Hold C1 and arranges and maintains anti-circuit out of control (AIC) by putting energising and be in normal open state, control driving or executive circuit connection load alternating current source; The electric leakage responded to by zero sequence current mutual inductor secondary coil or electric shock signal voltage, trigger anti-circuit out of control (AIC) inner Schmidt circuit and be externally in cut-off state, positive drive or executive circuit cut off load alternating current source, realize earth leakage protective and control; Visit end peace control circuit or upper limit comparison circuit and the protective circuit that binds with anti-circuit module out of control (AIC) inside and monitor the abnormal failures such as zero sequence current mutual inductor secondary coil broken string or short circuit and nucleus module circuit outer somewhere open circuit or short circuit; and cut-off protecting control is locked to inner Schmidt circuit, positive drive circuit and or executive circuit cut-out load alternating current source.
According to above-mentioned technical thought and method, the technical measures that the utility model is taked or technical scheme are: in case circuit out of control (AIC) is nucleus module circuit, at its input (V
ior V
i) and zero sequence current mutual inductor H between put logical and leak shock road, at homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1) and reversed-phase output (V
fOor DIS or Q or V
o2) drive circuit and or executive circuit are set.
As the specific embodiment 1 of preferred Quan Xiao Dingan County type earth leakage protective device, as shown in Figure 1, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R1 putting logical and leak shock route zero sequence current mutual inductor H, R2, C1 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or the patent No. is dotted line frame inner core circuit in 201020211450.2, or the patent No. is dotted line frame inner core circuit in 200810048942.1, also can be the patent No. be dotted line frame inner core circuit in 201120201926.9, it can also be other circuit with its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described drive circuit is by resistance R5, R6, voltage stabilizing didoe WD1, WD2 and triode VT1, VT2 is formed, described executive circuit is made up of relay J 1 and diode D1, two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J1
1, N
1on, the direct voltage V that described ac buck commutating DC stabilized voltage power supply (W) exports
+ 2higher than V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of core moding circuit block
ior V
i), input (V
ior V
i) also hold (GND) serial connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), in described drive circuit, resistance R5 one end connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), the resistance R5 other end connects voltage stabilizing didoe WD1 positive pole, and voltage stabilizing didoe WD1 negative pole is connected to triode VT1 base stage, and triode VT1 emitter connects direct voltage V
+ 2, resistance R6 one end connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), the resistance R6 other end connects voltage stabilizing didoe WD2 negative pole, voltage stabilizing didoe WD2 positive pole connecting triode VT2 base stage, triode VT2 emitter connecting circuit ground end (GND), diode D1 negative pole connecting triode VT1 collector electrode in described executive circuit, diode D1 positive pole connecting triode VT2 collector electrode, relay J 1 coil two ends are attempted by diode D1 the two poles of the earth, two pairs of normally opened contact J1 connection control loads of relay J 1 or the AC power (L of electrical appliance, N), QD is artificial start button, press the AC power (L of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance, N).
As the specific embodiment 2 of preferred Quan Xiao Dingan County type earth leakage protective device, as shown in Figure 2, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R1 putting logical and leak shock route zero sequence current mutual inductor H, R2, C1 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or the patent No. is dotted line frame inner core circuit in 201020211450.2, or the patent No. is dotted line frame inner core circuit in 200810048942.1, also can be the patent No. be dotted line frame inner core circuit in 201120201926.9, it can also be other circuit with its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described executive circuit is by relay J 2 and diode D2, D3 is formed, two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J2
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of core moding circuit block
ior V
i), input (V
ior V
i) also hold (GND) serial connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J2 coil two ends are attempted by diode D2 the two poles of the earth, and after diode D3, D2 positive pole connects, diode D3 negative pole connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), diode D2 negative pole connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), two pairs of normally opened contact J2 connection control loads of relay J 2 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
As the specific embodiment 3 of preferred Quan Xiao Dingan County type earth leakage protective device, as shown in Figure 3, comprise zero sequence current mutual inductor H, put logical and leak shock road in case circuit out of control (AIC) is nucleus module circuit, executive circuit, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R7 putting logical and leak shock route zero sequence current mutual inductor H, R8, C3 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or with the circuit of its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described executive circuit is by relay J 3 and diode D5, D6 is formed, two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J3
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the lower limit that one end (ZK) of described secondary coil n3 connects nucleus module circuit arranges end (V
lor V
i) or the lowest limit end (V is set
d), the other end contact resistance R7 of secondary coil n3, the resistance R7 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also connect and put energising with holding C1 and resistance R8, electric capacity C1 other end connection circuit end (GND), the resistance R8 other end connects the upper limit and arranges end (V
hor V
h) and amplify reset terminal (DAR), the power supply input positive pole (V of described nucleus module circuit
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J3 coil two ends are attempted by diode D6 the two poles of the earth, and after diode D5, D6 positive pole connects, diode D5 negative pole connects homophase or the positive output end (V of nucleus module circuit
tO), diode D6 negative pole connects the reversed-phase output (V of nucleus module circuit
fO), two pairs of normally opened contact J3 connection control loads of relay J 3 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
The basic functional principle of the utility model Zhong Quanxiao Dingan County type earth leakage protective device is as follows:
After manually pressing start button QD, the normally opened contact of executive circuit relay maintains attracting state, continues to connect AC power, and circuit for electric leakage protector system and controlled load thereof or electrical appliance obtain electric work.If controlled load or electrical appliance normally work, without electric leakage or generation of getting an electric shock, by AC power cord L
1, N
1on size of current equal, direction is contrary, offsetting at the magnetic flux of zero sequence current mutual inductor H ring-shaped core internal induction is zero, therefore produce without alternating current or voltage at the two ends of zero sequence current mutual inductor H secondary coil n3, now, nucleus module circuit input end (V
ior V
i) nucleus module circuit maintains normal open state by the upper energising position of putting that energising holds C1 of putting connected, and makes homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1) and reversed-phase output (V
fOor DIS or Q or V
o2) all export blocked level, control drive circuit conducting, or make executive circuit relay maintain attracting state, continue the AC power connecting circuit for electric leakage protector system and load or electrical appliance.
If controlled load or electrical appliance electric leakage occur or get an electric shock, make AC power cord L
1, N
1the uneven alternating current of upper generation, induction magnetic flux is produced in zero sequence current mutual inductor H annular core, therefore just produce induced current or voltage signal at the two ends of zero sequence current mutual inductor H secondary coil n3, if this signal voltage is greater than setting, make nucleus module circuit input end (V
ior V
i) signal voltage higher than its upper limit (V
hor V
h) evoked potential time, then in nucleus module circuit, Schmidt circuit maintains blocking immediately, makes homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1) and reversed-phase output (V
fOor DIS or Q or V
o2) all export blocked level; control drive circuit ends; or force the power-off of executive circuit relay coil to discharge; relay two pairs of normally opened contacts cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain off-position all the time; non-artificial can not Power resumption, thus, make electric leakage or electric shock obtain normal safe protection.
When there is disconnection fault in zero sequence current mutual inductor H secondary coil n3, or input (V
ior V
i) open a way or unsettled or with positive source short trouble time, make nucleus module circuit input end (V
ior V
i) signal voltage leap high, trigger nucleus module inside circuit Schmidt circuit and enter blocking immediately, make homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1) and reversed-phase output (V
fOor DIS or Q or V
o2) all export blocked level; control drive circuit ends; or force the power-off of executive circuit relay coil to discharge; the relay two pairs of normally opened contacts cut off the AC power of circuit for electric leakage protector systems and controlled load or electrical appliance, and maintain off-position all the time, non-artificial can not Power resumption; thus; can not occur out of control, avoid the false running status of protecting that lost efficacy occurs, allow electric consumer avert danger.Therefore, also safeguard protection can be obtained when itself is abnormal.
Principle and function according to the circuit anti-out of control (AIC) of core: when open circuit or short circuit occur in each extraction port somewhere of nucleus module circuit, or the two ends of secondary coil n3 are short-circuited or open fault time, or be subject to height, during electronegative potential impulse fault, or earth leakage protective device circuit system somewhere is when breaking down, relay coil power-off can be forced to discharge, its two pairs of normally opened contacts cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance, and maintain abnormal obliteration off-position, can not occur out of control, avoid the false running status of protecting that lost efficacy occurs, electric consumer is allowed to avert danger.Therefore, also safeguard protection can be obtained when itself exception a lot.
Visible; the utility model not only when normal work to the electric leakage of load or electrical appliance or get an electric shock and can carry out the safety protection control of locking power-off; and when himself there is common abnormal failure; also can reliably carry out in time locking or locking cut-off protecting control; relay is forced to cut off the AC power of load or electrical appliance; load or electrical appliance and electric consumer are placed in safe condition, can avoid or prevent electric shock accidents during faults itself, personal safety when guaranteeing electricity consumption.Thus, the utility model is that a kind of no matter itself state is normal or abnormal, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.
Therefore, the beneficial effects of the utility model are:
The anti-circuit out of control (AIC) of application is as Quan Xiao Dingan County type earth leakage protective device of nucleus module Modular circuit design, not only when normal work to the electric leakage of load or electrical appliance or get an electric shock and can carry out the safety protection control of locking power-off, and when various abnormal failure occurs for itself, also can reliably carry out in time locking or locking cut-off protecting control, positive drive executive circuit cuts off the AC power of load or electrical appliance, load or electrical appliance and electric consumer are placed in safe condition, can avoid or prevent electric shock accidents during self abnormal failure, personal safety when guaranteeing electricity consumption.Thus, the utility model is that a kind of no matter itself state is normal or abnormal, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.Its high security performance has important practical value and social benefit, can promote earth leakage protective device and so on updating and upgrading of a product, also can promote the renewal upgrading of this technical field national technical standard, surmount international standard.
Accompanying drawing explanation
Fig. 1 is specific embodiment 1 circuit theory diagrams of preferred Quan Xiao Dingan County type earth leakage protective device;
Fig. 2 is specific embodiment 2 circuit theory diagrams of preferred Quan Xiao Dingan County type earth leakage protective device.
Fig. 3 is specific embodiment 3 circuit theory diagrams of preferred Quan Xiao Dingan County type earth leakage protective device.
In Fig. 1: H is zero sequence current mutual inductor, AIC is anti-circuit out of control, namely the nucleus module circuit of Quan Xiao Dingan County type earth leakage protective device, and W is ac buck commutating DC stabilized voltage power supply, and J1 is executive circuit relay, and other is discrete electronic component.
In Fig. 2: H is zero sequence current mutual inductor, AIC is anti-circuit out of control, namely the nucleus module circuit of Quan Xiao Dingan County type earth leakage protective device, and W is ac buck commutating DC stabilized voltage power supply, and J2 is executive circuit relay, and other is discrete electronic component.
In Fig. 3: H is zero sequence current mutual inductor, AIC is anti-circuit out of control, namely the nucleus module circuit of Quan Xiao Dingan County type earth leakage protective device, and W is ac buck commutating DC stabilized voltage power supply, and J3 is executive circuit relay, and other is discrete electronic component.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Illustrating one, to embodiment 1 technical scheme of Quan Xiao Dingan County type earth leakage protective device:
(1) specific embodiment 1 circuit theory diagrams of Tu1Shi Quanxiao Dingan County type earth leakage protective device, its structural framing is as follows:
Comprise zero sequence current mutual inductor H, put logical and leak shock road in case circuit out of control (AIC) is nucleus module modular circuit, drive circuit and executive circuit, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R1 putting logical and leak shock route zero sequence current mutual inductor H, R2, C1 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or the patent No. is dotted line frame inner core circuit in 201020211450.2, or the patent No. is dotted line frame inner core circuit in 200810048942.1, also can be the patent No. be dotted line frame inner core circuit in 201120201926.9, it can also be other circuit with its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described drive circuit is by resistance R5, R6, voltage stabilizing didoe WD1, WD2 and triode VT1, VT2 is formed, described executive circuit is made up of relay J 1 and diode D1.
(2) specific embodiment 1 circuit connecting mode of Quan Xiao Dingan County type earth leakage protective device is as follows:
Two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J1
1, N
1on, the direct voltage V that described ac buck commutating DC stabilized voltage power supply (W) exports
+ 2higher than V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also hold (GND) connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), in described drive circuit, resistance R5 one end connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), the resistance R5 other end connects voltage stabilizing didoe WD1 positive pole, and voltage stabilizing didoe WD1 negative pole is connected to triode VT1 base stage, and triode VT1 emitter connects direct voltage V
+ 2, resistance R6 one end connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), the resistance R6 other end connects voltage stabilizing didoe WD2 negative pole, voltage stabilizing didoe WD2 positive pole connecting triode VT2 base stage, triode VT2 emitter connecting circuit ground end (GND), diode D1 negative pole connecting triode VT1 collector electrode in described executive circuit, diode D1 positive pole connecting triode VT2 collector electrode, relay J 1 coil two ends are attempted by diode D1 the two poles of the earth, two pairs of normally opened contact J1 connection control loads of relay J 1 or the AC power (L of electrical appliance, N), QD is artificial start button, press the AC power (L of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance, N).
(3) the specific embodiment 1 circuit working principle of Quan Xiao Dingan County type earth leakage protective device is as follows:
After manually pressing start button QD, the normally opened contact J1 of relay maintains attracting state, continues to connect AC power, and circuit for electric leakage protector system and controlled load thereof or electrical appliance obtain electric work.If controlled load or electrical appliance normally work, without electric leakage or generation of getting an electric shock, by AC power cord L
1, N
1on size of current equal, direction is contrary, offsetting at the magnetic flux of zero sequence current mutual inductor H ring-shaped core internal induction is zero, therefore produce without alternating current or voltage at the two ends of zero sequence current mutual inductor H secondary coil n3, now, nucleus module circuit input end (V
ior V
i) put energising position lower than its built-in upper limit (V
hor V
h) current potential, and higher than its built-in lower limit (V
lor V
i) current potential, so, the homophase of nucleus module circuit or positive output end (V
tOor V
zOor V
oor V
o1) maintain electronegative potential normal open state, and reversed-phase output (V
fOor DIS or Q or V
o2) maintain high potential normal open state, control triode VT1 and VT2 conducting in drive circuit, make executive circuit relay J 1 maintain attracting state, maintain the AC power connecting circuit for electric leakage protector system and load or electrical appliance.
If controlled load or electrical appliance electric leakage occur or get an electric shock, make AC power cord L
1, N
1the uneven alternating current of upper generation, produces induction magnetic flux, therefore just produces induced current or voltage signal at the two ends of zero sequence current mutual inductor H secondary coil n3 in zero sequence current mutual inductor H annular core.If this signal voltage is higher than setting, to nucleus module circuit input end (V
ior V
i) signal voltage higher than its built-in upper limit (V
hor V
h) current potential time, then the homophase of nucleus module circuit or positive output end (V
tOor V
zOor V
oor V
o1) export high potential, and maintain high potential blocking, through resistance R5 and voltage stabilizing didoe WD
1triode VT1 is ended, and the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2) export electronegative potential; and maintain electronegative potential blocking; through resistance R6 and voltage stabilizing didoe WD2, triode VT2 is ended; relay J 1 coil blackout is forced to discharge; its two couples of normally opened contact J1 cut off the AC power of circuit for electric leakage protector systems and controlled load or electrical appliance, and maintain off-position all the time, non-artificial can not Power resumption; thus, electric leakage/electric shock is made to obtain normal safe protection.
When zero sequence current mutual inductor H secondary coil n3 occur disconnection fault time, or nucleus module circuit input circuit open a way unsettled or with positive source short trouble time, make nucleus module circuit input end (V
ior V
i) current potential is higher than the built-in upper limit (V
hor V
h) current potential, trigger internal Schmidt circuit, its forward or positive output end (V
tOor V
zOor V
oor V
o1) export high level pressure triode VT1 cut-off, inverse output terminal (V
fOor DIS or Q or V
o2) output low level forces triode VT2 cut-off, forces relay J 1 coil blackout to discharge; relay J 1 two couples of normally opened contact J1 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain locking off-position; can not occur out of control; avoid the false running status of protecting that lost efficacy occurs, allow electric consumer avert danger.Therefore, also safeguard protection can be obtained when itself is abnormal.
According to nucleus module circuit and embodiment 1 circuit theory and function: when open circuit or short circuit occur in each extraction port somewhere of nucleus module circuit, or the two ends of secondary coil n3 are short-circuited or open fault time, or be subject to height, during electronegative potential impulse fault, or earth leakage protective device circuit system somewhere is when breaking down, relay J 1 coil blackout can be forced to discharge, its two couples of normally opened contact J1 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance, and maintain abnormal obliteration off-position, can not occur out of control, avoid the false running status of protecting that lost efficacy occurs, electric consumer is allowed to avert danger.Therefore, also safeguard protection can be obtained when itself exception a lot.
Visible; embodiment 1 not only when normal work to the electric leakage of load or electrical appliance or get an electric shock and can carry out the safety protection control of locking power-off; and when himself there is common abnormal failure; also can reliably carry out in time locking or locking cut-off protecting control; relay J 1 is forced to cut off the AC power of load or electrical appliance; load or electrical appliance and electric consumer are placed in safe condition, can avoid or prevent electric shock accidents during faults itself, personal safety when guaranteeing electricity consumption.Thus, embodiment 1 is that a kind of no matter itself state is normal or abnormal, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.
Illustrating two, to embodiment 2 technical scheme of Quan Xiao Dingan County type earth leakage protective device:
(1) specific embodiment 2 circuit theory diagrams of Tu2Shi Quanxiao Dingan County type earth leakage protective device, its structural framing is as follows:
Comprise zero sequence current mutual inductor H, put logical and leak shock road in case circuit out of control (AIC) is nucleus module circuit, executive circuit, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R1 putting logical and leak shock route zero sequence current mutual inductor H, R2, C1 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or the patent No. is dotted line frame inner core circuit in 201020211450.2, or the patent No. is dotted line frame inner core circuit in 200810048942.1, also can be the patent No. be dotted line frame inner core circuit in 201120201926.9, it can also be other circuit with its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described executive circuit is by relay J 2 and diode D2, D3 is formed.
(2) specific embodiment 2 circuit connecting mode of Quan Xiao Dingan County type earth leakage protective device is as follows:
Two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J2
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also hold (GND) serial connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J2 coil two ends are attempted by diode D2 the two poles of the earth, and after diode D3, D2 positive pole connects, diode D3 negative pole connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), diode D2 negative pole connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), two pairs of normally opened contact J2 connection control loads of relay J 2 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
(3) the specific embodiment 2 circuit working principle of Quan Xiao Dingan County type earth leakage protective device is as follows:
After manually pressing start button QD, the normally opened contact J2 of relay maintains attracting state, continues to connect AC power, and circuit for electric leakage protector system and controlled load thereof or electrical appliance obtain electric work.If controlled load or electrical appliance normally work, without electric leakage or generation of getting an electric shock, by AC power cord L
1, N
1on size of current equal, direction is contrary, offsetting at the magnetic flux of zero sequence current mutual inductor H ring-shaped core internal induction is zero, therefore produce without alternating current or voltage at the two ends of zero sequence current mutual inductor H secondary coil n3, now, nucleus module circuit input end (V
ior V
i) put energising position lower than its built-in upper limit (V
hor V
h) current potential, and higher than its built-in lower limit (V
lor V
1) current potential, so, the homophase of nucleus module circuit or positive output end (V
tOor V
zOor V
oor V
o1) maintain electronegative potential normal open state, and reversed-phase output (V
fOor DIS or Q or V
o2) maintain high potential normal open state, control executive circuit relay J 2 and maintain attracting state, maintain the AC power connecting circuit for electric leakage protector system and load or electrical appliance.
If controlled load or electrical appliance electric leakage occur or get an electric shock, make AC power cord L
1, N
1the uneven alternating current of upper generation, produces induction magnetic flux, therefore just produces induced current or voltage signal at the two ends of zero sequence current mutual inductor H secondary coil n3 in zero sequence current mutual inductor H annular core.If this signal voltage is higher than setting, to nucleus module circuit input end (V
ior V
i) signal voltage higher than its built-in upper limit (V
hor V
h) current potential time, then the homophase of nucleus module circuit or positive output end (V
tOor V
zOor V
oor V
o1) export high potential, and maintain high potential blocking, and the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2) export electronegative potential; and maintain electronegative potential blocking; relay J 2 coil blackout is forced to discharge; its two couples of normally opened contact J2 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain off-position all the time; non-artificial can not Power resumption, thus, make electric leakage/electric shock obtain normal safe protection.
When zero sequence current mutual inductor H secondary coil n3 occur disconnection fault time, or nucleus module circuit input circuit open a way unsettled or with positive source short trouble time, make nucleus module circuit input end (V
ior V
i) current potential is higher than the built-in upper limit (V
hor V
h) current potential, trigger internal Schmidt circuit, its forward or positive output end (V
tOor V
zOor V
oor V
o1) export high level, inverse output terminal (V
fOor DIS or Q or V
o2) output low level, force relay J 2 coil blackout to discharge; relay J 2 two couples of normally opened contact J2 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain locking off-position; can not occur out of control; avoid the false running status of protecting that lost efficacy occurs, allow electric consumer avert danger.Therefore, also safeguard protection can be obtained when itself is abnormal.
According to nucleus module circuit and embodiment 2 circuit theory and function: when open circuit or short circuit occur in each extraction port somewhere of nucleus module circuit, or the two ends of secondary coil n3 are short-circuited or open fault time, or be subject to height, during electronegative potential impulse fault, or earth leakage protective device circuit system somewhere is when breaking down, relay J 2 coil blackout can be forced to discharge, its two couples of normally opened contact J2 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance, and maintain abnormal obliteration off-position, can not occur out of control, avoid the false running status of protecting that lost efficacy occurs, electric consumer is allowed to avert danger.Therefore, also safeguard protection can be obtained when itself exception a lot.
Visible; embodiment 2 not only when normal work to the electric leakage of load or electrical appliance or get an electric shock and can carry out the safety protection control of locking power-off; and when himself there is common abnormal failure; also can reliably carry out in time locking or latch-up protection control; relay J 2 is forced to cut off the AC power of load or electrical appliance; load or electrical appliance and electric consumer are placed in safe condition, electric shock accidents when can avoid or prevent faults itself to lose efficacy, personal safety when guaranteeing electricity consumption.Thus, embodiment 2 is also that a kind of no matter itself state is normal or abnormal, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.
Illustrating three, to embodiment 3 technical scheme of Quan Xiao Dingan County type earth leakage protective device:
(1) specific embodiment 3 circuit theory diagrams of Tu3Shi Quanxiao Dingan County type earth leakage protective device, its structural framing is as follows:
Comprise zero sequence current mutual inductor H, put logical and leak shock road in case circuit out of control (AIC) is nucleus module circuit, executive circuit, described zero sequence current mutual inductor H is by ring-shaped core, primary coil n1, n2 and secondary coil n3 forms, described secondary coil n3 and the resistance R7 putting logical and leak shock route zero sequence current mutual inductor H, R8, C3 is formed, described nucleus module circuit is exactly anti-circuit out of control (AIC), described circuit anti-out of control (AIC), be exactly number of patent application be " bind rebasing peace control circuit " module in 201410582311.3, or with the circuit of its function equivalent, its core circuit structure and the mode of connection refer to this patent documentation, described executive circuit is by relay J 3 and diode D5, D6 is formed.
(2) specific embodiment 2 circuit connecting mode of Quan Xiao Dingan County type earth leakage protective device is as follows:
Two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J3
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the lower limit that one end (ZK) of described secondary coil n3 connects nucleus module circuit arranges end (V
lor V
i) or the lowest limit end (V is set
d), the other end contact resistance R7 of secondary coil n3, the resistance R7 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also connect and put energising with holding C1 and resistance R8, electric capacity C1 other end connection circuit end (GND), the resistance R8 other end connects the upper limit and arranges end (V
hor V
h) and amplify reset terminal (DAR), the power supply input positive pole (V of described nucleus module circuit
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J3 coil two ends are attempted by diode D6 the two poles of the earth, and after diode D5, D6 positive pole connects, diode D5 negative pole connects homophase or the positive output end (V of nucleus module circuit
tO), diode D6 negative pole connects the reversed-phase output (V of nucleus module circuit
fO), two pairs of normally opened contact J3 connection control loads of relay J 3 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
(3) the specific embodiment 2 circuit working principle of Quan Xiao Dingan County type earth leakage protective device is as follows:
After manually pressing start button QD, the normally opened contact J3 of relay maintains attracting state, continues to connect AC power, and circuit for electric leakage protector system and controlled load thereof or electrical appliance obtain electric work.If controlled load or electrical appliance normally work, without electric leakage or generation of getting an electric shock, by AC power cord L
1, N
1on size of current equal, direction is contrary, offsetting at the magnetic flux of zero sequence current mutual inductor H ring-shaped core internal induction is zero, therefore produce without alternating current or voltage at the two ends of zero sequence current mutual inductor H secondary coil n3, now, put energising and hold C1 and resistance R7 by nucleus module circuit input end (V
ior V
i) put energising position be arranged on lower than its built-in upper limit (V
hor V
h) current potential, and higher than its built-in lower limit (V
lor V
i) between current potential, so, the homophase of nucleus module circuit or positive output end (V
tO) maintain electronegative potential normal open state, and reversed-phase output (V
fO) maintain high potential normal open state, control executive circuit relay J 3 and maintain attracting state, maintain the AC power connecting circuit for electric leakage protector system and load or electrical appliance.
If controlled load or electrical appliance electric leakage occur or get an electric shock, make AC power cord L
1, N
1the uneven alternating current of upper generation, produces induction magnetic flux, therefore just produces induced current or voltage signal at the two ends of zero sequence current mutual inductor H secondary coil n3 in zero sequence current mutual inductor H annular core.As fainter in this signal voltage, by input (V
ior V
i) enter in nucleus module circuit, after visiting the end or amplifying circuit amplification, export the upper limit to from amplification reset terminal (DAR) and end (V is set
hor V
h), and drag down the upper limit (V
hor V
h) current potential, make input (V
ior V
i) signal voltage easily higher than the upper limit (V
hor V
h) current potential, the then homophase of nucleus module circuit or positive output end (V
tO) export high potential, and maintain high potential blocking, and the reversed-phase output (V of nucleus module circuit
fO) export electronegative potential; and maintain electronegative potential blocking; relay J 3 coil blackout is forced to discharge; its two couples of normally opened contact J3 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain off-position all the time; non-artificial can not Power resumption, thus, make electric leakage/electric shock obtain normal safe protection.
When zero sequence current mutual inductor H secondary coil n3 occur disconnection fault time, or nucleus module circuit input circuit open a way unsettled or with positive source short trouble time, make nucleus module circuit input end (V
ior V
i) current potential is higher than the built-in upper limit (V
hor V
h) current potential, trigger internal Schmidt circuit, its forward or positive output end (V
tO) export high level, inverse output terminal (V
fO) output low level, force relay J 3 coil blackout to discharge; relay J 3 two couples of normally opened contact J3 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance; and maintain locking off-position; can not occur out of control; avoid the false running status of protecting that lost efficacy occurs, allow electric consumer avert danger.Therefore, also safeguard protection can be obtained when itself is abnormal.
In a word, according to nucleus module circuit and embodiment 3 circuit theory and functional analysis: when open circuit or short circuit occur in each extraction port somewhere of nucleus module circuit, or be subject to height, during electronegative potential impulse fault, or the two ends of secondary coil n3 are short-circuited or open fault time, secondary coil n3 be short-circuited fault time, or earth leakage protective device circuit system somewhere is when breaking down, relay J 3 coil blackout can be forced to discharge, its two couples of normally opened contact J3 cut off the AC power of circuit for electric leakage protector system and controlled load or electrical appliance, and maintain abnormal obliteration off-position, can not occur out of control, avoid the false running status of protecting that lost efficacy occurs, electric consumer is allowed to avert danger.Therefore, also safeguard protection can be obtained when itself exception a lot.
Visible; embodiment 3 not only when normal work to the electric leakage of load or electrical appliance or get an electric shock and can carry out the safety protection control of locking power-off; and when himself there is common abnormal failure; also can reliably carry out in time locking or latch-up protection control; relay J 3 is forced to cut off the AC power of load or electrical appliance; load or electrical appliance and electric consumer are placed in safe condition, electric shock accidents when can avoid or prevent faults itself to lose efficacy, personal safety when guaranteeing electricity consumption.Thus, embodiment 3 is also that a kind of no matter itself state is normal or abnormal, can have " effect " protection, " Quan Xiao Dingan County type earth leakage protective device " that one " determining " guarantee " peace " is complete in " complete " face.
Claims (3)
1. Zhong Quanxiao Dingan County type earth leakage protective device, comprises zero sequence current mutual inductor H, ac buck commutating DC stabilized voltage power supply (W), it is characterized in that: also comprise and put logical and leak shock road, nucleus module circuit, drive circuit and executive circuit, described zero sequence current mutual inductor H is made up of ring-shaped core, primary coil n1, n2 and secondary coil n3, described put logical and leak shock route zero sequence current mutual inductor H secondary coil n3 and resistance R1, R2, C1 form, described nucleus module circuit is exactly anti-circuit out of control (AIC), described drive circuit is made up of resistance R5, R6, voltage stabilizing didoe WD1, WD2 and triode VT1, VT2, and described executive circuit is made up of relay J 1 and diode D1, two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J1
1, N
1on, the direct voltage V that described ac buck commutating DC stabilized voltage power supply (W) exports
+ 2higher than V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also hold (GND) connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), in described drive circuit, resistance R5 one end connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), the resistance R5 other end connects voltage stabilizing didoe WD1 positive pole, and voltage stabilizing didoe WD1 negative pole is connected to triode VT1 base stage, and triode VT1 emitter connects direct voltage V
+ 2, resistance R6 one end connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), the resistance R6 other end connects voltage stabilizing didoe WD2 negative pole, voltage stabilizing didoe WD2 positive pole connecting triode VT2 base stage, triode VT2 emitter connecting circuit ground end (GND), diode D1 negative pole connecting triode VT1 collector electrode in described executive circuit, diode D1 positive pole connecting triode VT2 collector electrode, relay J 1 coil two ends are attempted by diode D1 the two poles of the earth, two pairs of normally opened contact J1 connection control loads of relay J 1 or the AC power (L of electrical appliance, N), QD is artificial start button, press the AC power (L of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance, N).
2. Zhong Quanxiao Dingan County type earth leakage protective device, comprises zero sequence current mutual inductor H, ac buck commutating DC stabilized voltage power supply (W), it is characterized in that: also comprise and put logical and leak shock road, nucleus module circuit, executive circuit; Described zero sequence current mutual inductor H is made up of ring-shaped core, primary coil n1, n2 and secondary coil n3, described put logical and leak shock route zero sequence current mutual inductor H secondary coil n3 and resistance R1, R2, C1 form, described nucleus module circuit is exactly anti-circuit out of control (AIC), and described executive circuit is made up of relay J 2 and diode D2; Two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J2
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the upper limit of one end connection nucleus module circuit of described secondary coil n3 arranges end (V
hor V
h), on the serial connection point of the other end contact resistance R1, R2 of secondary coil n3, the resistance R1 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also hold (GND) serial connection to put energising with holding C1, resistance R2 other end connecting circuit end (GND) to circuit, the power supply of described nucleus module circuit inputs positive pole (V
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J2 coil two ends are attempted by diode D2 the two poles of the earth, and after diode D3, D2 positive pole connects, diode D3 negative pole connects homophase or the positive output end (V of nucleus module circuit
tOor V
zOor V
oor V
o1), diode D2 negative pole connects the reversed-phase output (V of nucleus module circuit
fOor DIS or Q or V
o2), two pairs of normally opened contact J2 connection control loads of relay J 2 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
3. Zhong Quanxiao Dingan County type earth leakage protective device, comprises zero sequence current mutual inductor H, ac buck commutating DC stabilized voltage power supply (W), it is characterized in that: also comprise and put logical and leak shock road, nucleus module circuit, executive circuit; Described zero sequence current mutual inductor H is made up of ring-shaped core, primary coil n1, n2 and secondary coil n3, described put logical and leak shock route zero sequence current mutual inductor H secondary coil n3 and resistance R7, R8, C3 form, described nucleus module circuit is exactly anti-circuit out of control (AIC), and described executive circuit is made up of relay J 3 and diode D5, D6; Two ac input ends of described ac buck commutating DC stabilized voltage power supply (W) are connected to load or the electrical appliance side two alternating current wires L of relay normally open contact J3
1, N
1on, the direct voltage that described ac buck commutating DC stabilized voltage power supply (W) exports only uses V
+ 1, primary coil n1, n2 of described zero sequence current mutual inductor H are and penetrate two AC power cord L in ring-shaped core hole
1, N
1, the secondary coil n3 of zero sequence current mutual inductor H is around the coil on its ring-shaped core, and the lower limit that one end (ZK) of described secondary coil n3 connects nucleus module circuit arranges end (V
lor V
i) or the lowest limit end (V is set
d), the other end contact resistance R7 of secondary coil n3, the resistance R7 other end connects the input (V of nucleus module circuit
ior V
i), input (V
ior V
i) also connect and put energising with holding C1 and resistance R8, electric capacity C1 other end connection circuit end (GND), the resistance R8 other end connects the upper limit and arranges end (V
hor V
h) and amplify reset terminal (DAR), the power supply input positive pole (V of described nucleus module circuit
+) and negative pole (V
-) connect direct voltage V respectively
+ 1with circuit hold (GND), described executive circuit repeat circuit J3 coil two ends are attempted by diode D6 the two poles of the earth, and after diode D5, D6 positive pole connects, diode D5 negative pole connects homophase or the positive output end (V of nucleus module circuit
tO), diode D6 negative pole connects the reversed-phase output (V of nucleus module circuit
fO), two pairs of normally opened contact J3 connection control loads of relay J 3 or the AC power (L, N) of electrical appliance, QD is artificial start button, presses the AC power (L, N) of rear connection ac buck commutating DC stabilized voltage power supply (W) and controlled load or electrical appliance.
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|---|---|---|---|
| CN201520092644.8U CN204615359U (en) | 2015-02-05 | 2015-02-05 | Quan Xiao Dingan County type earth leakage protective device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520092644.8U CN204615359U (en) | 2015-02-05 | 2015-02-05 | Quan Xiao Dingan County type earth leakage protective device |
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|---|---|
| CN204615359U true CN204615359U (en) | 2015-09-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108322945A (en) * | 2018-03-29 | 2018-07-24 | 刘少华 | The complete anti-authentic safe electric blanket out of control of effect |
| CN109673062A (en) * | 2017-11-21 | 2019-04-23 | 刘少华 | A kind of electric blanket of anti-thermal control failure |
-
2015
- 2015-02-05 CN CN201520092644.8U patent/CN204615359U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109673062A (en) * | 2017-11-21 | 2019-04-23 | 刘少华 | A kind of electric blanket of anti-thermal control failure |
| CN108322945A (en) * | 2018-03-29 | 2018-07-24 | 刘少华 | The complete anti-authentic safe electric blanket out of control of effect |
| CN108322945B (en) * | 2018-03-29 | 2021-04-30 | 刘少华 | Full-effect out-of-control-preventing full-real safety electric blanket |
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