CN211629019U - Double-power permanent magnet leakage protector - Google Patents

Abstract

The utility model discloses a double-power permanent magnetism earth-leakage protector relates to electrical equipment protection technical field, include: the double-power permanent-magnet leakage protector comprises a protector bottom plate, two protector devices arranged on the upper part of the protector bottom plate in parallel, pins arranged on the lower part of the protector bottom plate and elastic pieces, wherein the protector devices control the double-power permanent-magnet leakage protector to be opened and closed; when the power supply is switched on, at least one protector device is electrified, the communicated iron core drives the elastic sheet pressing block to rotate through the vertical fork groove, so that the side pressure rod positioned at the bottom of the elastic sheet pressing block presses the elastic sheet downwards, the elastic sheet pressing block presses downwards to drive the synchronous pressing block to synchronously rotate, so that the synchronous pressing rods simultaneously press downwards, and the magnetic suction plate is fixed through permanent magnet core adsorption; the maintaining tripping device is used for fixing the position of the locking deflector rod, so that the elastic sheet pressing block keeps a pressing-down state and the elastic sheet and the pin keep a connection state; adopt above-mentioned technical scheme, the utility model discloses a can carry out earth leakage protection's novel earth leakage protector to two loads respectively simultaneously.

Description

Double-power permanent magnet leakage protector

Technical Field

The utility model belongs to the technical field of the electrical equipment protection technique and specifically relates to a double-power permanent magnetism earth-leakage protector.

Background

When the equipment has leakage fault or needs to protect the person with fatal danger from electric shock, the leakage protector can disconnect the main circuit in time, thereby being widely applied; the application technology of the leakage protector is mature, and the leakage protector is divided into a voltage type and a current type according to the protection principle. From the mechanical structure, there are self-locking type and attraction type, but the current or voltage mechanical self-locking type leakage protector is mainly used. The biggest characteristic of the mechanical self-locking structure is as follows: when the power supply of the working leakage protector is interrupted or the power supply loop is in phase failure and the line is in poor contact, the mechanical self-locking structure of the leakage protector in a closed state can not actively disconnect the closed contact, and at the moment, if the power supply loop is in abnormal phase failure and the ground wire is in abnormal electrification or leaks electricity, the leakage protector loses the protection effect, so that safety accidents are caused; therefore, the suction type application is more and more, and the electricity safety can be ensured; however, the design and use scenes of the existing leakage protector equipment can only carry out leakage protection on a single load, and cannot respectively carry out leakage protection on double loads; to the above problem, the utility model discloses in designed a can carry out earth-leakage protection's novel earth-leakage protector respectively to two loads simultaneously, when being applicable to products such as class electric water heater very much, can carry out earth-leakage protection to two electrothermal tubes respectively simultaneously.

The electric control mode adopted in the existing double-power electric appliance is to realize the micro-disconnection of the circuit through a relay, but because the opening distance is smaller and the safety is lower, a double-power leakage protector device capable of achieving the safe 3mm opening distance is required to replace the structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned defect that prior art exists, provide a double-power permanent magnetism earth-leakage protector specially, solve current earth-leakage protector and can't carry out effective safe earth-leakage protection's problem respectively to two loads.

In order to solve the technical problem, the utility model provides a double-power permanent magnetism earth-leakage protector, include: the double-power permanent-magnet leakage protector comprises a protector bottom plate, an elastic sheet, two protector devices arranged on the upper part of the protector bottom plate in parallel and a wiring terminal arranged and fixed on the protector bottom plate, wherein the protector devices control the double-power permanent-magnet leakage protector to be opened and closed;

the protector device comprises a maintaining tripping device, a communicating device and a locking device, wherein the locking device is arranged between the maintaining tripping device and the communicating device and is used for controlling the opening and closing of the elastic sheet and the wiring terminal;

the locking device comprises a spring plate pressing block and a locking deflector rod, and the locking deflector rod is provided with a lock catch, a magnetic suction plate and a hasp slideway;

the elastic piece pressing block is provided with a hasp, a vertical fork groove and a side pressing rod, and the hasp is used for being matched and abutted with the hasp;

the communicating device is provided with a communicating iron core which extends transversely and is matched with the vertical fork groove in a clamping manner; the maintenance tripping device is provided with a permanent magnet core which is longitudinally arranged and can be used for magnetic adsorption matching with the magnetic attraction plate;

the maintaining tripping device also comprises a tripping coil, the tripping coil is fixed in the maintaining tripping device, and the permanent magnet core is vertically fixed in the inner cavity of the tripping coil; one end of the permanent magnet core is fixedly connected with the bottom of the maintaining and tripping device, and the other end of the permanent magnet core is used for adsorbing the magnetic suction plate;

a synchronous pressing block is arranged between the elastic sheet pressing blocks of the two protector devices which are arranged in parallel, the two elastic sheet pressing blocks and the synchronous pressing block rotate coaxially, a synchronous pressing rod is arranged at the bottom of the synchronous pressing block, shaft sleeve rotating abutting blocks are arranged on two sides of the synchronous pressing block, a shaft sleeve rotating driving block on the elastic sheet pressing block is matched and abutted with the shaft sleeve rotating abutting blocks, and the elastic sheet pressing block can drive the synchronous pressing block to rotate synchronously through the matching of the shaft sleeve rotating driving block and the shaft sleeve rotating abutting blocks;

when the power-on leakage protector is closed: at least one protector device is powered on, the communicated iron core drives the elastic piece pressing block to rotate through the vertical fork groove, so that the side pressure rod positioned at the bottom of the elastic piece pressing block presses the elastic piece downwards, the elastic piece pressing block presses downwards to drive the synchronous pressing block to synchronously rotate, so that the synchronous pressing rod simultaneously presses the elastic piece downwards, the hasp slides upwards along the hasp slide way, in the process that the hasp slides to be abutted against the hasp, the magnetic attraction plate continuously moves downwards, and the magnetic attraction plate is fixed through the permanent magnet core in an adsorbing mode; the connection maintaining device maintains the tripping device and is used for fixing the position of the locking deflector rod, so that the elastic sheet pressing block is kept in a pressing state, the elastic sheet and the wiring terminal are kept in a connection state, and further, circuit connection is realized, and the load is connected with a power supply;

when the power supply is disconnected, the leakage protector is disconnected: the tripping coil is electrified, a magnetic field generated by the tripping coil is offset with a magnetic field of the permanent magnet core, so that the communication maintaining device stops working, the locking deflector rod is released, the lock catch and the hasp are tripped, the elastic sheet is disconnected with the wiring terminal, and further, the circuit is broken to disconnect the power supply of the load.

The connecting terminal is provided with pins, the pins comprise a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected with the first pin, the first pin is connected with a live wire, and the second pin is connected with a zero wire; the second is participated in, first is participated in, the ground wire is participated in and auxiliary connection foot top is equipped with the electricity and connects the contact point, first shell fragment, second shell fragment, third shell fragment and PE line shell fragment tip all are equipped with the shell fragment contact corresponding with the electricity connection contact, one side depression bar can be used to push down first shell fragment and first participate in the intercommunication, the opposite side depression bar can be used to push down third shell fragment and auxiliary connection foot intercommunication, synchronous depression bar can be used to push down the second shell fragment and the second participates in the intercommunication to can push down PE line shell fragment and ground wire simultaneously and participate in the intercommunication.

The base pins comprise a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected with the first pin, the first pin is connected with the live wire, and the second pin is connected with the zero wire; the second is participated in, first is participated in and is connected the foot top with supplementary and be equipped with the electricity and connect the contact point, first shell fragment, second shell fragment and third shell fragment tip all are equipped with and connect the corresponding shell fragment contact of contact with the electricity, one side depression bar can be used to push down first shell fragment and participate in the intercommunication with first, the opposite side depression bar can be used to push down third shell fragment and supplementary connection foot intercommunication, synchronous depression bar can be used to push down second shell fragment and participate in the intercommunication with the second, but PE line and ground wire participate in the not disconnection and keep the switch-on.

The locking deflector rod is movably hinged with a second support arranged on the communicating device through a second pin shaft, and the elastic piece pressing block is movably hinged with a first support arranged in the middle of the bottom plate through a first pin shaft.

Wherein, the shell fragment briquetting includes briquetting upper portion and briquetting lower part, hasp and perpendicular fork groove set up on briquetting upper portion, and the side pressure pole sets up in the briquetting lower part, and briquetting upper portion is articulated through first round pin axle with the briquetting lower part, is equipped with compression state's briquetting spring between briquetting upper portion and the briquetting lower part, and when the side pressure pole was in the butt state with the shell fragment, the elasticity of briquetting spring can make the side pressure pole keep the steady effort to the shell fragment, and the rotatory drive block setting of axle sleeve was sheathe in the rotation axis of briquetting upper portion or briquetting lower part.

The hinge joint of the upper part of the pressing block and the lower part of the pressing block is provided with a hinge seat, a first pin shaft penetrates through the hinge seat, the hinge seat is also provided with a limit stop block, and the limit stop block is used for controlling an opening angle between the upper part of the pressing block and the lower part of the pressing block when the pressing block rotates by taking the first pin shaft as an axis; the positions of the upper portion of the pressing block and the lower portion of the pressing block, which correspond to the pressing block spring, are provided with spring grooves, spring columns are further arranged in the spring grooves, the spring grooves and the spring columns are used for installing the pressing block spring, the upper portion of the pressing block and the lower portion of the pressing block are combined to form the elastic piece pressing block in a pressing mode through the pressing block spring, the elastic piece pressing block is not only carried out by a fixed limiting mechanical structure in the pressing process of the elastic piece, stable pressing force can be exerted on the elastic piece through the pressing block spring by the side pressing rod and the synchronous pressing rod, after mechanical abrasion is generated due to long-time use in the follow-up process, the opening angle between the upper portion of the pressing block and the lower portion of the pressing block can be increased when the first pin shaft rotates as the shaft center through the elastic force of the.

The bottom parts of the maintaining tripping device and the communicating device are provided with wedge-shaped buckling feet, and the maintaining tripping device and the communicating device are respectively buckled and fixed with the bottom plate through the buckling feet.

Wherein, the intercommunication device still includes intercommunication coil and intercommunication spring, and the intercommunication coil is fixed inside the intercommunication device, and intercommunication spring and intercommunication iron core level set up at the intercommunication coil inner chamber.

Wherein, be equipped with articulated mounting in advance on the articulated seat, articulated mounting includes boss and joint recess in advance, and the boss is located the articulated department on briquetting upper portion, and the joint recess is located the articulated department in briquetting lower part, through the cooperation of boss and joint recess, realizes that briquetting upper portion and briquetting lower part are articulated in advance.

Wherein, be equipped with articulated mounting in advance on the articulated seat, articulated mounting includes boss and joint recess in advance, and the joint recess is located the articulated department on briquetting upper portion, and the boss is located the articulated department in briquetting lower part, through the cooperation of boss and joint recess, realizes that briquetting upper portion and briquetting lower part are articulated in advance.

Wherein, still be equipped with on the locking driving lever and compress tightly the kicking block, it is located hasp one side to compress tightly the kicking block, when switch on, it is rotatory that the intercommunication iron core drives the shell fragment briquetting through erecting the fork groove, the hasp upwards slides along the hasp slide, and the hasp slides through the hasp after with compress tightly the instantaneous butt of kicking block, thereby it is fixed by the permanent magnet core absorption to make magnetism inhale the board downstream through with compressing tightly the kicking block butt, through the setting that compresses tightly the kicking block, make the hasp can promote magnetism to inhale the extra rotatory certain angle of board, thereby make first iron core adsorb magnetism and inhale the board more easily.

Wherein, still be equipped with the instruction piece on the synchronous briquetting, the instruction piece is located the upper portion of synchronous briquetting, and the instruction piece colour is red.

When the power supply is disconnected, the limiting baffle can be abutted against the upper part of the communication device so as to limit the rotating angle of the locking deflector rod, and the limiting effect of the limiting baffle realizes the limitation of the rotating angle range of the locking deflector rod; and the service life of the double-power permanent magnet leakage protector is greatly prolonged through the design of the magnetic attraction plate.

The synchronous pressure rod is provided with a lug corresponding to the PE wire elastic sheet, and when the synchronous pressure rod is pressed down, the lug enables the PE wire elastic sheet to be communicated with the corresponding pin before the first elastic sheet, the second elastic sheet and the third elastic sheet; when the side pressure rod is lifted, the lug ensures that the PE wire elastic sheet is disconnected with the corresponding pin behind the first elastic sheet, the second elastic sheet and the third elastic sheet.

Wherein, still be equipped with the clamp plate pinhole on the locking driving lever, magnetism is inhaled the board and is articulated through round pin axle and clamp plate pinhole cooperation.

Wherein, the shaft sleeve rotation driving block and the shaft sleeve rotation abutting block are both open shaft sleeves.

The connecting terminal is provided with pins, the pins comprise a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected with the first pin, the first pin is connected with a zero line, and the second pin is connected with a live line; the second is participated in, first is participated in, the ground wire is participated in and auxiliary connection foot top is equipped with the electricity and connects the contact point, first shell fragment, second shell fragment, third shell fragment and PE line shell fragment tip all are equipped with the shell fragment contact corresponding with the electricity connection contact, one side depression bar can be used to push down first shell fragment and first participate in the intercommunication, the opposite side depression bar can be used to push down third shell fragment and auxiliary connection foot intercommunication, synchronous depression bar can be used to push down the second shell fragment and the second participates in the intercommunication to can push down PE line shell fragment and ground wire simultaneously and participate in the intercommunication.

The base pins comprise a first pin, a ground wire pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected with the first pin, the first pin is connected with a zero line, and the second pin is connected with a live line; the second is participated in, first is participated in and is connected the foot top with supplementary and be equipped with the electricity and connect the contact point, first shell fragment, second shell fragment and third shell fragment tip all are equipped with and connect the corresponding shell fragment contact of contact with the electricity, one side depression bar can be used to push down first shell fragment and participate in the intercommunication with first, the opposite side depression bar can be used to push down third shell fragment and supplementary connection foot intercommunication, synchronous depression bar can be used to push down second shell fragment and participate in the intercommunication with the second, but PE line and ground wire participate in the not disconnection and keep the switch-on.

Drawings

Fig. 1 is a perspective view 1 of the dual-power permanent-magnet leakage protector of the present invention;

fig. 2 is a perspective view 2 of the dual-power permanent-magnet leakage protector of the present invention;

FIG. 3 is a structural diagram of a protector device of the dual-power permanent-magnet leakage protector of the present invention;

fig. 4 is a structural diagram of a maintaining and tripping device of the dual-power permanent magnet leakage protector of the utility model;

fig. 5 is a structural diagram of a bottom plate, pins and spring plates of the dual-power permanent-magnet leakage protector of the present invention;

fig. 6 is a structural diagram of pins and spring pieces of the dual-power permanent-magnet leakage protector of the present invention;

fig. 7 is a structural diagram of a protector bottom plate of the dual-power permanent-magnet leakage protector of the present invention;

fig. 8 is a structural diagram 1 of a locking device of the dual-power permanent-magnet leakage protector of the present invention;

fig. 9 is a structural diagram 2 of a locking device of the dual-power permanent-magnet leakage protector of the present invention;

fig. 10 is a structural diagram 3 of a locking device of the dual-power permanent-magnet leakage protector of the present invention;

fig. 11 is a structural diagram 1 of the spring plate pressing block and the synchronous pressing block of the dual-power permanent magnet leakage protector of the present invention;

fig. 12 is a structural diagram 2 of the spring plate pressing block and the synchronous pressing block of the dual-power permanent magnet leakage protector of the present invention;

fig. 13 is a locking deflector rod structure diagram of the dual-power permanent-magnet leakage protector of the present invention;

FIG. 14 is a diagram of the structure of the spring plate block of the dual-power permanent-magnet leakage protector of the present invention;

fig. 15 is a structural diagram 3 of the spring plate pressing block and the synchronous pressing block of the dual-power permanent magnet leakage protector of the present invention;

in the figure: 1 is a protector device; 2 is a protector bottom plate; 3 is a pin; 4 is a spring plate; 5 is a maintaining trip device; 6 is a communicating device; 7 is a locking device; 8, synchronous briquetting; 10 is a pin pressing strip; 11 is a first elastic sheet; 12 is a second elastic sheet; 13 is a third elastic sheet; 14 is PE wire spring plate; 15 is a second pin; 16 is a first pin; 17 is a ground pin; 18 are electrical connection contacts; 19 is a spring contact; 20 is an auxiliary connecting pin; 21 is a permanent magnet core; 22 is a trip coil; 23 is a communicating iron core; 24 is a communicating coil; 25 is a communicating spring; 26 is a spring plate pressing block; 27 is a locking deflector rod; 28 is a first pin; 29 is a second pin shaft; 30 is a first support; 31 is a second support; 32 is an indication block; 33 is a lock catch; 34 is a magnetic attraction plate; 35 is a hasp slideway; 36 is a hasp; 37 is a vertical fork groove; 38 is a side press rod; 39 is a synchronous pressure lever; 41 is the upper part of the pressing block; 42 is the lower part of the pressing block; 43 is a pressure block spring; 44 is a limit stop; 45 is a fastening pin; 46 is a boss; 47 is a clamping groove; 48 is a compaction top block; 49 is a limit baffle; 50 is a bump; 51 is a press plate pin hole; 52 is a shaft sleeve rotation driving block; 53 is a shaft sleeve rotary abutting block; and 54 is a pin pressing block.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Example 1:

the utility model discloses a double-power permanent magnetism earth-leakage protector, as shown in fig. 1 to fig. 12, include: the double-power permanent-magnet leakage protector comprises a protector bottom plate 2, an elastic sheet 4, two protector devices 1 arranged on the upper portion of the protector bottom plate 2 in parallel and a wiring terminal arranged on the lower portion of the protector bottom plate 2, wherein in the embodiment, the wiring terminal is a pin 3, the pin 3 can be directly inserted into a socket, in other use environments, a lead can be led out from the wiring terminal to be electrically connected, and the protector devices 1 control the on and off of the double-power permanent-magnet leakage protector;

each protector device 1 comprises a maintaining tripping device 5, a communicating device 6 and a locking device 7, wherein the locking device 7 is arranged between the maintaining tripping device 5 and the communicating device 6, and the locking device 7 is used for controlling the opening and closing of the elastic sheet 4 and the pin 3;

the locking device 7 comprises a spring plate pressing block 26 and a locking shifting rod 27, and the locking shifting rod 27 is provided with a lock catch 33, a magnetic attraction plate 34 and a hasp slideway 35; as shown in fig. 14, the spring plate pressing block 26 is provided with a hasp 36, a vertical fork groove 37 and a lateral pressing rod 38, and the hasp 36 is used for being matched and abutted with the lock catch 33;

the communicating device 6 is provided with a communicating iron core 23 which extends transversely, the communicating iron core 23 is in clamping fit with the vertical fork groove 37, the communicating device 6 further comprises a communicating coil 24 and a communicating spring 25, the communicating coil 24 is fixed in the communicating device 6, and the communicating spring 25 and the communicating iron core 23 are horizontally arranged in an inner cavity of the communicating coil 24; the maintenance tripping device 5 is provided with a permanent magnet core 21 which is longitudinally arranged, the permanent magnet core 21 can be used for being in magnetic attraction fit with a magnetic attraction plate 34, the magnetic attraction plate 34 is a metal plate in the embodiment, such as a steel plate, the maintenance tripping device 5 further comprises a tripping coil 22, the tripping coil 22 is fixed inside the maintenance tripping device 5, and the permanent magnet core 21 is vertically fixed in an inner cavity of the tripping coil 22; one end of the permanent magnet core 21 is fixedly connected with the bottom of the maintaining tripping device 5, and the other end of the permanent magnet core 21 is used for adsorbing the magnetic absorption plate 34;

in the embodiment, the elastic sheet pressing block 26 is movably hinged with the first support 30 arranged at the middle position of the protector base plate 2 through a first pin shaft 28, the two elastic sheet pressing blocks 26 of the two protector devices 1 and the synchronous pressing block 8 are arranged on the first pin shaft 28 together and can rotate around the first pin shaft 28, the elastic sheet pressing block 26 can be driven to rotate through the communicating iron core 23, the synchronous pressing block 8 is driven by the elastic sheet pressing block 26 to rotate, namely, when the shaft sleeve rotation driving block 52 rotates along with the elastic sheet pressing block 26, the synchronous pressing rod 39 simultaneously presses down the corresponding elastic sheet when the side pressing rod 38 at the bottom of the elastic sheet pressing block 26 presses down the corresponding elastic sheet through the abutting fit relation between the shaft sleeve rotation driving block 52 on the rotation shaft sleeve of the elastic sheet pressing block 26 and the shaft sleeve rotation abutting block 53 on the rotation shaft sleeve of the synchronous pressing block 8;

when the power is switched on, namely when the leakage protector is closed, at least one protector device 1 is powered on, the communicating iron core 23 drives the elastic sheet pressing block 26 to rotate through the vertical fork groove 37, so that the side pressing rod 38 positioned at the bottom of the elastic sheet pressing block 26 presses the elastic sheet 4 downwards, the elastic sheet pressing block 26 presses downwards to drive the synchronous pressing block 8 to synchronously rotate so as to simultaneously press the synchronous pressing rod 39 downwards, the hasp 36 slides upwards along the hasp slideway 35, and in the process that the hasp 36 slides to be abutted against the hasp 33, the magnetic attraction plate 34 continuously moves downwards, as shown in fig. 10, the magnetic attraction plate 34 is ensured to continuously move downwards, the situations that the magnetic attraction plate 34 stops or jumps and the like in the sliding process can be avoided, the speed of adsorption and fixation of the magnetic attraction plate 34 and the permanent magnet core 21 can be influenced due to the stopping or jumping, and the communication failure of the leakage protector can be; the magnetic attraction plate 34 is thus attracted and fixed by the permanent magnet core 21; the maintaining tripping device 5 is used for fixing the position of the locking shift lever 27, so that the elastic sheet pressing block 26 keeps a pressing-down state, and the elastic sheet 4 and the pin 3 keep a connection state, thereby realizing circuit connection even if a load is connected with a power supply;

when the power supply is disconnected, discharge to trip coil 22 through the energy storage capacitor, the magnetic field that trip coil 22 produced offsets with the magnetic field of permanent magnet core 21, cylindricality permanent magnet core 21 is not producing absorptive magnetic force to magnetism board 34, make locking driving lever 27 released, hasp 33 and hasp 36 trip, make shell fragment 4 and binding post disconnection, make the load power failure, this embodiment is through above-mentioned structure, the problem that the shell fragment 4 and binding post's of having realized double-power earth-leakage protector open the distance and can reach safe 3mm apart distance, and through the setting of synchronous briquetting 8, saved cost has been played, the effect of simplifying connecting device.

As shown in fig. 15, the sleeve rotation driving block 52 and the sleeve rotation abutting block 53 in this embodiment are both open sleeves, and when the sleeve rotation driving block 52 and the sleeve rotation abutting block 53 are engaged, a reserved rotation space is still provided between the sleeve rotation driving block 52 and the sleeve rotation abutting block 53, i.e. when the power is on, the communicating iron core 23 drives the spring plate pressing block 26 to rotate through the vertical fork slot 37, and at the same time, the upper portion of the sleeve rotation driving block 52 is engaged with the upper portion of the sleeve rotation abutting block 53, the synchronous pressing block 8 rotates simultaneously, so as to press the spring plate 4, when the power is off, the locking lever 27 is released, the spring plate pressing block 26 does not press down and rotate, during this process, because a reserved rotation space is also provided between the sleeve rotation driving block 52 and the sleeve rotation abutting block 53, i.e. there is a certain gap between the lower portion of the sleeve rotation driving block 52 and the lower portion of the sleeve rotation abutting block 53, so that the synchronizing mass 8 can rotate later than the striking plate mass 26.

The elastic sheet 4 comprises a first elastic sheet 11, a second elastic sheet 12, a third elastic sheet 13 and a PE wire elastic sheet 14, the first elastic sheet 11, the second elastic sheet 12, the third elastic sheet 13 and the PE wire elastic sheet 14 penetrate through the bottom of the maintaining tripping device 5 and are clamped and fixed by the protector bottom plate 2 and the maintaining tripping device 5, the pin 3 comprises a second pin 15, a first pin 16, a ground wire pin 17 and an auxiliary connecting pin 20, the auxiliary connecting pin 20 is electrically connected with the first pin 16, the first pin 16 is connected with a live wire, and the second pin 15 is connected with a neutral wire;

the top of the second pin 15, the first pin 16, the ground pin 17 and the auxiliary connecting pin 20 is provided with an electric connecting contact 18, the end parts of the first elastic sheet 11, the second elastic sheet 12, the third elastic sheet 13 and the PE wire elastic sheet 14 are all provided with an elastic sheet contact 19 corresponding to the electric connecting contact 18, one side pressure lever 38 can be used for pressing the first elastic sheet 11 to be communicated with the first pin 16, the other side pressure lever 38 can be used for pressing the third elastic sheet 13 to be communicated with the auxiliary connecting pin 20, the synchronous pressure lever 39 can be used for pressing the second elastic sheet 12 to be communicated with the second pin 15 and simultaneously pressing the PE wire elastic sheet 14 to be communicated with the ground pin 17, furthermore, in the specific implementation process, when only one protector device 1 is electrified, only the elastic sheet pressing block 26 corresponding to the protector device 1 keeps a pressing state, namely the first elastic sheet 11 is communicated with the first pin 16, or the third elastic sheet 13 is communicated with the auxiliary connecting pin 20, because the auxiliary connecting pin 20 is electrically connected with the first pin 16, and as long as a spring plate pressing block 26 keeps a pressing-down state, and simultaneously drives the synchronous pressing block 8 to keep a pressing-down state, i.e. the second spring plate 12 is communicated with the second pin 15, and the PE wire spring plate 14 is communicated with the ground pin 17, the power-on of any protector device 1 can ensure that the leakage protector is in a power-on state and plays a role of protection, when two protector devices 1 are simultaneously powered on, the leakage protection can be simultaneously carried out on two loads in a circuit, namely the double-power leakage protector of the embodiment, further application of the embodiment is realized, for example, when the double-power leakage protector of the embodiment is applied to a water heater, two electric heating pipes can be simultaneously controlled to carry out water storage heating and water outlet heating on the water heater, specifically, an internal water storage tank and an external water outlet tank are arranged in, and be equipped with an electrothermal tube respectively and heat, two protector devices 1 carry out earth leakage protection to two electrothermal tubes respectively, heat to about 40 ℃ through the electrothermal tube in the inside storage water tank and keep warm, when needs use hot water, externally go out the water tank and also can continue to heat very fast about 75 ℃, adopt above-mentioned scheme to make the heat preservation effect better, the heat dissipation is slower, compare in keeping warm at higher temperature, have better energy-conserving effect, two electrothermal tubes can both carry out earth leakage protection through the earth leakage protector of this embodiment simultaneously.

A bump 50 is arranged on the synchronous pressure lever 39 corresponding to the PE wire elastic sheet 14, and when the synchronous pressure lever 39 is pressed down, the bump 50 enables the PE wire elastic sheet 14 to be communicated with the corresponding pin 3 before the first elastic sheet 11, the second elastic sheet 12 and the third elastic sheet 13; when the side pressure lever 38 is lifted, the bump 50 disconnects the PE wire spring 14 from the corresponding pin 3 after the first spring 11, the second spring 12, and the third spring 13.

As shown in fig. 3 and 4, the bottoms of the maintaining tripping device 5 and the communicating device 6 are both provided with wedge-shaped fastening pins 45, and the maintaining tripping device 5 and the communicating device 6 are respectively fastened and fixed with the protector base plate 2 through the fastening pins 45; the installation is simple and convenient to firm reliable, can directly utilize the mould die sinking, reduction in production cost still is equipped with to participate in layering 10 and is used for participating in 3 and compress tightly maintaining trip gear 5 bottom both sides, still is equipped with to participate in the briquetting 54 and is used for participating in 3 and compress tightly between protector device 1 and protector bottom plate 2.

Example 2:

compared with the embodiment 1, the elastic sheet 4 includes a first elastic sheet 11, a second elastic sheet 12 and a third elastic sheet 13, the first elastic sheet 11, the second elastic sheet 12 and the third elastic sheet 13 penetrate through the bottom of the maintaining and tripping device 5 and are clamped and fixed by the protector bottom plate 2 and the maintaining and tripping device 5, the pin 3 includes a second pin 15, a first pin 16, a ground pin 17 and an auxiliary connecting pin 20, the auxiliary connecting pin 20 is electrically connected with the first pin 16, the first pin 16 is connected with the live wire, and the second pin 15 is connected with the neutral wire;

the top of the second pin 15, the top of the first pin 16 and the top of the auxiliary connecting pin 20 are provided with an electric connecting contact 18, the end parts of the first elastic sheet 11, the second elastic sheet 12 and the third elastic sheet 13 are provided with elastic sheet contacts 19 corresponding to the electric connecting contact 18, a side pressure lever 38 can be used for pressing the first elastic sheet 11 to be communicated with the first pin 16, a side pressure lever 38 can be used for pressing the third elastic sheet 13 to be communicated with the auxiliary connecting pin 20, a synchronous pressure lever 39 can be used for pressing the second elastic sheet 12 to be communicated with the second pin 15, and the PE wire and the ground wire pin 17 cannot be disconnected and keep connected.

In this embodiment, the first elastic piece 11 corresponds to the first pin 16, the second elastic piece 12 corresponds to the second pin 15, and the third elastic piece 13 corresponds to the auxiliary connection pin 20, and in this embodiment, the PE wire elastic piece 14 is removed, and the ground pin 17 is connected to the PE wire through a wire, so that the PE wire is kept in a continuous connection state.

Example 3:

in this embodiment, the spring plate pressing block 26 includes a pressing block upper part 41 and a pressing block lower part 42, the hasp 36 and the vertical fork groove 37 are arranged on the pressing block upper part 41, the side pressure lever 38 is arranged on the pressing block lower part 42, the pressing block upper part 41 and the pressing block lower part 42 are hinged through the first pin shaft 28, a pressing block spring 43 in a compressed state is arranged between the pressing block upper part 41 and the pressing block lower part 42, and when the side pressure lever 38 and the spring plate 4 are in a butt joint state, the elastic force of the pressing block spring 43 can enable the side pressure lever 38 to keep a stable acting force on the; the positions of the first holder 30 and the second holder 31 can be adjusted according to the difference in the positions of the mounting layout of the earth-leakage protector, and the boss rotation driving block 52 is provided on the rotation shaft boss of the pressing block upper part 41 or the pressing block lower part 42.

As shown in fig. 8, 9 and 10, a hinged seat is provided at the hinged position of the upper pressing block portion 41 and the lower pressing block portion 42, the first pin shaft 28 is inserted into the hinged seat, a limit stop 44 is further provided on the hinged seat, and the limit stop 44 is used for controlling an opening angle between the upper pressing block portion 41 and the lower pressing block portion 42 when rotating around the first pin shaft 28 as an axis; even if the rotation angle of the upper pressing block part 41 and the lower pressing block part 42 around the first pin shaft 28 is limited within a certain range, the design can ensure that the elastic sheet pressing block 26 is not automatically disassembled after being assembled due to the elastic force of the pressing block spring 43 after the assembly is completed, and the upper pressing block part 41 and the lower pressing block part 42 can be limited.

Briquetting upper portion 41 all is equipped with the spring groove with the position that briquetting lower part 42 corresponds and sets up briquetting spring 43, and the spring groove is used for installing briquetting spring 43, also can guarantee simultaneously that briquetting spring 43 can not drop, and the installation is got up more simple and conveniently, further still is equipped with the spring post at the spring inslot, and spring groove and spring post are used for installing briquetting spring 43, guarantee the fixed effect of installation.

Example 4:

in this embodiment, as shown in fig. 10, a pre-hinge device is arranged on the hinge seat, the pre-hinge device includes a boss 46 and a clamping groove 47, the boss 46 is located at the hinge position of the upper part 41 of the pressing block, the clamping groove 47 is located at the hinge position of the lower part 42 of the pressing block, and the pre-hinge of the upper part 41 of the pressing block and the lower part 42 of the pressing block is realized through the cooperation of the boss 46 and the clamping groove 47, that is, under the condition that the first pin shaft 28 is not installed, the installation work of the spring plate pressing block 26 can be completed, and meanwhile, the coaxiality of the upper part 41 of the pressing block and the lower part 42 of the pressing block can be.

Example 5:

compared with embodiment 4, in this embodiment, the hinge seat is provided with the pre-hinge device, the pre-hinge device includes a boss 46 and a clamping groove 47, the clamping groove 47 is located at the hinge joint of the upper part 41 of the pressing block, the boss 46 is located at the hinge joint of the lower part 42 of the pressing block, and the pre-hinge of the upper part 41 of the pressing block and the lower part 42 of the pressing block is realized through the cooperation of the boss 46 and the clamping groove 47.

Example 6:

as shown in fig. 10 and 13, compared to embodiment 1, in this embodiment, the locking lever 27 is further provided with a pressing top block 48, the pressing top block 48 is located on one side of the latch 33, when the power is turned on, the communicating iron core 23 drives the spring piece pressing block 26 to rotate through the vertical fork slot 37, the latch 36 slides upwards along the latch slideway 35, and the latch 36 slides through the latch 33 and then instantly abuts against the pressing top block 48, so that the magnetic attraction plate 34 moves downwards to the lowest position through abutting against the pressing top block 48, and is more easily attracted and fixed by the permanent magnet core 21; that is, through the setting that compresses tightly kicking block 48 for hasp 36 can push magnetic attraction board 34 extra and certain angle of quick rotation, thereby make magnetic attraction board 34 can move to the lowest position, when switch on, intercommunication iron core 23 returns and to draw the position of rotatory maximum angle with shell fragment briquetting 26 in the twinkling of an eye, hasp 36 is through hasp slide 35 and hasp 33 in proper order this moment, take place the butt with compressing tightly kicking block 48 at last, thereby make hasp 36 can push magnetic attraction board 34 extra rotatory certain angle and move to the lowest position after, can guarantee that permanent magnet core 21 adsorbs magnetic attraction board 34 under trip coil 22's effect more easily.

Example 7:

in this embodiment, as shown in fig. 11, the synchronous pressure block 8 is further provided with an indication block 32, the indication block 32 is located on the upper portion of the synchronous pressure block 8, the color of the indication block 32 is red, and after the earth-leakage protector of the embodiment is mounted on the housing, the state of the earth-leakage protector can be judged through the indication block 32.

Example 8:

in this embodiment, as shown in fig. 10, a limiting baffle 49 is further disposed on the locking lever 27, the limiting baffle 49 is disposed at an end of the locking lever 27 and located at an upper portion of the communication device 6, and when the power is turned off, the limiting baffle 49 can abut against the upper portion of the communication device 6 to limit a rotation angle of the locking lever 27; specifically, when the power supply is turned off, the limit stop 49 may abut against the upper portion of the communication device 6 to limit the rotation angle of the lock lever 27, that is, the limit stop 49 abuts against the top surface of the upper portion of the communication device 6, so that the lock lever 27 can only rotate around the second pin 29 within a limited range after the power supply is turned off, and the influence on other portions is prevented

Example 9:

in this embodiment, as shown in fig. 10, a pressing plate pin hole 51 is further provided on the locking shift lever 27, the magnetic attraction plate 34 is hinged to the pressing plate pin hole 51 through a pin shaft, the pressing plate pin hole 51 is located on the upper portion of the locking shift lever 27, that is, the magnetic attraction plate 34 and the locking shift lever 27 are in a movable hinged state, the magnetic attraction plate 34 can rotate around the pin shaft within a certain range, it can be ensured that the magnetic attraction plate 34 has the largest contact area when in contact with the permanent magnet core 21, a larger adsorption force is ensured, and the service life of the dual-power permanent magnet leakage protector is effectively prolonged.

Example 10:

in this embodiment, compared to embodiment 1, the first pin 16 is connected to the zero line, and the second pin 15 is connected to the live line, specifically, the elastic pieces include a first elastic piece, a second elastic piece, a third elastic piece, and a PE wire elastic piece, the first elastic piece, the second elastic piece, the third elastic piece, and the PE wire elastic piece penetrate through the bottom of the trip device and are clamped and fixed by the bottom plate and the trip device, the connection terminal is a pin, the pin includes a second pin, a first pin, a ground wire pin, and an auxiliary connection pin, the auxiliary connection pin is electrically connected to the first pin, the first pin 16 is connected to the zero line, and the second pin 15 is connected to the live line; the second is participated in, first is participated in, the ground wire is participated in and auxiliary connection foot top is equipped with the electricity and connects the contact point, first shell fragment, second shell fragment, third shell fragment and PE line shell fragment tip all are equipped with the shell fragment contact corresponding with the electricity connection contact, one side depression bar can be used to push down first shell fragment and first participate in the intercommunication, the opposite side depression bar can be used to push down third shell fragment and auxiliary connection foot intercommunication, synchronous depression bar can be used to push down the second shell fragment and the second participates in the intercommunication to can push down PE line shell fragment and ground wire simultaneously and participate in the intercommunication.

Example 11:

in this embodiment, compared to embodiment 2, the first pin 16 is connected to the neutral wire, and the second pin 15 is connected to the live wire, specifically, the elastic pieces include a first elastic piece, a second elastic piece, and a third elastic piece, the first elastic piece, the second elastic piece, and the third elastic piece penetrate through the bottom of the trip device and are clamped and fixed by the bottom plate and the trip device, the pins include a second pin, a first pin, a ground pin, and an auxiliary connection pin, the auxiliary connection pin is electrically connected to the first pin, the first pin 16 is connected to the neutral wire, and the second pin 15 is connected to the live wire; the second is participated in, first is participated in and is connected the foot top with supplementary and be equipped with the electricity and connect the contact point, first shell fragment, second shell fragment and third shell fragment tip all are equipped with and connect the corresponding shell fragment contact of contact with the electricity, one side depression bar can be used to push down first shell fragment and participate in the intercommunication with first, the opposite side depression bar can be used to push down third shell fragment and supplementary connection foot intercommunication, synchronous depression bar can be used to push down second shell fragment and participate in the intercommunication with the second, but PE line and ground wire participate in the not disconnection and keep the switch-on.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (19)

1. A dual-power permanent-magnet leakage protector, comprising: the double-power permanent-magnet leakage protector comprises protector devices (1), a protector base plate (2), a wiring terminal and an elastic sheet (4), wherein the two protector devices (1) are arranged on the upper part of the protector base plate (2) in parallel and are mounted on the wiring terminal on the protector base plate (2), and the protector devices (1) control the double-power permanent-magnet leakage protector to be opened and closed;

the protector device (1) comprises a maintaining tripping device (5), a communicating device (6) and a locking device (7), wherein the locking device (7) is arranged between the maintaining tripping device (5) and the communicating device (6), and the locking device (7) is used for controlling the opening and closing of the elastic sheet (4) and the wiring terminal;

the locking device (7) comprises a spring plate pressing block (26) and a locking shifting rod (27), and a lock catch (33), a magnetic attraction plate (34) and a hasp slide way (35) are arranged on the locking shifting rod (27);

the spring plate pressing block (26) is provided with a hasp (36), a vertical fork groove (37), a shaft sleeve rotation driving block (52) and a side pressing rod (38), and the hasp (36) is used for being matched and abutted with the hasp (33);

a communicating iron core (23) extending transversely is arranged on the communicating device (6), and the communicating iron core (23) is in clamping fit with the vertical fork groove (37); a permanent magnet core (21) which is longitudinally arranged is arranged on the maintaining tripping device (5), and the permanent magnet core (21) can be used for magnetic adsorption matching with the magnetic attraction plate (34);

the maintaining tripping device (5) further comprises a tripping coil (22), the tripping coil (22) is fixed in the maintaining tripping device (5), and the permanent magnet core (21) is vertically fixed in an inner cavity of the tripping coil (22); one end of the permanent magnet core (21) is fixedly connected with the bottom of the maintaining tripping device (5), and the other end of the permanent magnet core (21) is used for adsorbing the magnetic suction plate (34);

a synchronous pressing block (8) is arranged between the elastic sheet pressing blocks (26) of the two protector devices (1) which are arranged in parallel, the two elastic sheet pressing blocks (26) and the synchronous pressing block (8) rotate coaxially, a synchronous pressing rod (39) is arranged at the bottom of the synchronous pressing block (8), shaft sleeve rotating abutting blocks (53) are arranged on two sides of the synchronous pressing block (8), a shaft sleeve rotating driving block (52) on the elastic sheet pressing block (26) is abutted with the shaft sleeve rotating abutting blocks (53) in a matched mode, and the elastic sheet pressing block (26) can drive the synchronous pressing block (8) to rotate synchronously through the matching of the shaft sleeve rotating driving block (52) and the shaft sleeve rotating abutting blocks (53);

when the earth leakage protector is closed: at least one protector device (1) is powered on, the communicating iron core (23) drives the elastic sheet pressing block (26) to rotate through a vertical fork groove (37), so that a side pressure rod (38) positioned at the bottom of the elastic sheet pressing block (26) presses down an elastic sheet (4), the elastic sheet pressing block (26) presses down to drive the synchronous pressing block (8) to synchronously rotate, so that the synchronous pressure rod (39) simultaneously presses down the elastic sheet (4), meanwhile, the hasp (36) slides upwards along the hasp slide way (35), and in the process that the hasp (36) slides to abut against the hasp (33), the magnetic absorption plate (34) continuously moves downwards, and the magnetic absorption plate (34) is adsorbed and fixed through the permanent magnet core (21); the maintaining tripping device (5) is used for fixing the position of the locking deflector rod (27), so that the elastic sheet pressing block (26) keeps a pressing state, the elastic sheet (4) and the wiring terminal keep a connection state, and a load is communicated with a power supply;

when the earth leakage protector is disconnected: the tripping coil (22) is electrified, a magnetic field generated by the tripping coil (22) is counteracted with a magnetic field of the permanent magnet core (21), so that the locking deflector rod (27) is released, the lock catch (33) is tripped from the hasp (36), the elastic sheet (4) is disconnected from the wiring terminal, and the load is powered off.

2. The dual-power permanent-magnet leakage protector according to claim 1, wherein the elastic sheet (4) comprises a first elastic sheet (11), a second elastic sheet (12), a third elastic sheet (13) and a PE wire elastic sheet (14), the first elastic sheet (11), the second elastic sheet (12), the third elastic sheet (13) and the PE wire elastic sheet (14) pass through the bottom of the trip device (5) and are clamped and fixed with the trip device (5) by the protector bottom plate (2), the connection terminal is provided as a pin (3), the pin (3) comprises a second pin (15), a first pin (16), a ground pin (17) and an auxiliary connection pin (20), the auxiliary connection pin (20) is electrically connected with the first pin (16), the first pin (16) is connected with the live wire, and the second pin (15) is connected with the neutral wire;

the top of the second pin (15), the top of the first pin (16), the top of the ground pin (17) and the top of the auxiliary connecting pin (20) are provided with an electric connection contact point (18), the end parts of the first elastic sheet (11), the second elastic sheet (12), the third elastic sheet (13) and the PE wire elastic sheet (14) are provided with elastic sheet contacts (19) corresponding to the electric connection contact point (18), a side pressure lever (38) can be used for pressing the first elastic sheet (11) to be communicated with the first pin (16), a side pressure lever (38) can be used for pressing the third elastic sheet (13) to be communicated with the auxiliary connecting pin (20), and a synchronous pressure lever (39) can be used for pressing the second elastic sheet (12) to be communicated with the second pin (15) and pressing the PE wire elastic sheet (14) to be communicated with the ground pin (17).

3. The dual-power permanent-magnet leakage protector according to claim 1, wherein the elastic sheet (4) comprises a first elastic sheet (11), a second elastic sheet (12) and a third elastic sheet (13), the first elastic sheet (11), the second elastic sheet (12) and the third elastic sheet (13) penetrate through the bottom of the trip unit (5) and are clamped and fixed with the trip unit (5) by the protector base plate (2), the connection terminal is a pin (3), the pin (3) comprises a second pin (15), a first pin (16), a ground pin (17) and an auxiliary connection pin (20), the auxiliary connection pin (20) is electrically connected with the first pin (16), the first pin (16) is connected with the live wire, and the second pin (15) is connected with the neutral wire;

the top of the second pin (15), the top of the first pin (16) and the top of the auxiliary connecting pin (20) are provided with an electric connection contact point (18), the end parts of the first elastic sheet (11), the second elastic sheet (12) and the third elastic sheet (13) are provided with elastic sheet contacts (19) corresponding to the electric connection contact point (18), one side pressure lever (38) can be used for pressing the first elastic sheet (11) down to be communicated with the first pin (16), the other side pressure lever (38) can be used for pressing the third elastic sheet (13) down to be communicated with the auxiliary connecting pin (20), the synchronous pressure lever (39) can be used for pressing the second elastic sheet (12) down to be communicated with the second pin (15), and the PE wire and the ground wire pin (17) can not be disconnected and can be kept communicated.

4. A dual power permanent magnetic leakage protector according to claim 1, characterized in that said locking lever (27) is articulated movably by means of a second pin (29) to a second seat (31) provided on said communicating means (6), said spring plate pressing block (26) being articulated movably by means of a first pin (28) to a first seat (30) provided in the middle of the protector base plate (2).

5. A dual power permanent magnet earth leakage protector according to claim 4, characterized in that the spring plate press block (26) comprises a press block upper part (41) and a press block lower part (42), the hasp (36) and the vertical fork groove (37) are arranged on the upper part (41) of the pressing block, the lateral pressure rod (38) is arranged at the lower part (42) of the pressing block, the upper part (41) of the pressing block is hinged with the lower part (42) of the pressing block through a first pin shaft (28), a briquetting spring (43) in a compression state is arranged between the upper part (41) of the briquetting and the lower part (42) of the briquetting, when the side pressure rod (38) is in a butt joint state with the elastic sheet (4), the elastic force of the pressure block spring (43) can enable the side pressure rod (38) to keep stable acting force on the elastic sheet (4), the shaft sleeve rotation driving block (52) is arranged on a rotation shaft sleeve of the upper pressing block part (41) or the lower pressing block part (42).

6. The dual-power permanent-magnet leakage protector according to claim 5, wherein a hinge seat is provided at a hinge position of the upper pressing block portion (41) and the lower pressing block portion (42), the first pin shaft (28) is inserted into the hinge seat, a limit stop (44) is further provided on the hinge seat, and the limit stop (44) is used for controlling an opening angle between the upper pressing block portion (41) and the lower pressing block portion (42) when the upper pressing block portion rotates around the first pin shaft (28).

7. The dual-power permanent-magnet earth-leakage protector according to claim 1, characterized in that the bottom of the maintaining trip device (5) and the bottom of the communicating device (6) are both provided with wedge-shaped fastening pins (45), and the maintaining trip device (5) and the communicating device (6) are fastened and fixed with the protector base plate (2) through the fastening pins (45), respectively.

8. A dual power permanent magnet earth leakage protector according to claim 1, characterized in that said communicating means (6) further comprises a communicating coil (24) and a communicating spring (25), said communicating coil (24) is fixed inside the communicating means (6), said communicating spring (25) and the communicating iron core (23) are horizontally arranged in the inner cavity of the communicating coil (24).

9. The dual-power permanent-magnet leakage protector according to claim 6, wherein the hinge seat is provided with a pre-hinge device, the pre-hinge device comprises a boss (46) and a clamping groove (47), the boss (46) is located at the hinge position of the upper pressing block part (41), the clamping groove (47) is located at the hinge position of the lower pressing block part (42), and the pre-hinge of the upper pressing block part (41) and the lower pressing block part (42) is realized through the cooperation of the boss (46) and the clamping groove (47).

10. The dual-power permanent-magnet leakage protector according to claim 6, wherein the hinge seat is provided with a pre-hinge device, the pre-hinge device comprises a boss (46) and a clamping groove (47), the clamping groove (47) is located at the hinge position of the upper pressing block part (41), the boss (46) is located at the hinge position of the lower pressing block part (42), and the pre-hinge of the upper pressing block part (41) and the lower pressing block part (42) is realized through the cooperation of the boss (46) and the clamping groove (47).

11. The dual-power permanent-magnet leakage protector according to claim 1, wherein a pressing top block (48) is further arranged on the locking deflector rod (27), the pressing top block (48) is located on one side of the lock catch (33), when the power is turned on, the communicating iron core (23) drives the spring plate pressing block (26) to rotate through a vertical fork groove (37), the hasp (36) slides upwards along the hasp slide way (35), the hasp (36) slides through the lock catch (33) and then is instantly abutted against the pressing top block (48), and the pressing top block (48) is abutted against the pressing top block to enable the magnetic absorption plate (34) to move downwards so as to be adsorbed and fixed by the permanent magnet core (21).

12. A double-power permanent-magnet earth-leakage protector according to claim 5, characterized in that the upper (41) and lower (42) of said pressing block are provided with spring slots corresponding to the pressing block springs (43), and spring posts are provided in said spring slots, and said spring slots and spring posts are used for mounting said pressing block springs (43).

13. The dual-power permanent-magnet earth leakage protector according to claim 1, characterized in that an indication block (32) is further provided on the synchronization voltage block (8), the indication block (32) is located on the upper portion of the synchronization voltage block (8), and the color of the indication block (32) is red.

14. The dual-power permanent-magnet earth leakage protector according to claim 1, characterized in that said locking deflector (27) is further provided with a limit stop (49), said limit stop (49) is disposed at an end of said locking deflector (27) and above said communication device (6), and when the power is cut off, said limit stop (49) can abut against an upper portion of said communication device (6) to limit the rotation angle of said locking deflector (27).

15. The dual-power permanent-magnet leakage protector according to claim 2, wherein a bump (50) is disposed on the synchronization pressure lever (39) corresponding to the PE wire spring (14), and when the synchronization pressure lever (39) is pressed down, the bump (50) makes the PE wire spring (14) connected to the corresponding pin (3) before the first spring (11), the second spring (12) and the third spring (13); when the side pressure lever (38) is lifted, the lug (50) enables the PE wire elastic sheet (14) to be disconnected with the corresponding pin (3) after the first elastic sheet (11), the second elastic sheet (12) and the third elastic sheet (13).

16. The dual-power permanent-magnet earth leakage protector according to claim 1, wherein said locking deflector rod (27) is further provided with a pressing plate pin hole (51), and said magnetic attraction plate (34) is hinged to said pressing plate pin hole (51) by a pin.

17. A dual power permanent magnet earth leakage protector according to claim 1, characterized in that the bushing rotary driving block (52) and the bushing rotary abutment block (53) are both open bushings.

18. The dual-power permanent-magnet leakage protector according to claim 1, wherein the elastic sheet (4) comprises a first elastic sheet (11), a second elastic sheet (12), a third elastic sheet (13) and a PE wire elastic sheet (14), the first elastic sheet (11), the second elastic sheet (12), the third elastic sheet (13) and the PE wire elastic sheet (14) pass through the bottom of the trip device (5) and are clamped and fixed with the trip device (5) by the protector bottom plate (2), the connection terminal is provided as a pin (3), the pin (3) comprises a second pin (15), a first pin (16), a ground pin (17) and an auxiliary connection pin (20), the auxiliary connection pin (20) is electrically connected with the first pin (16), the first pin (16) is connected with a zero line, and the second pin (15) is connected with a live line;

the top of the second pin (15), the top of the first pin (16), the top of the ground pin (17) and the top of the auxiliary connecting pin (20) are provided with an electric connection contact point (18), the end parts of the first elastic sheet (11), the second elastic sheet (12), the third elastic sheet (13) and the PE wire elastic sheet (14) are provided with elastic sheet contacts (19) corresponding to the electric connection contact point (18), a side pressure lever (38) can be used for pressing the first elastic sheet (11) to be communicated with the first pin (16), a side pressure lever (38) can be used for pressing the third elastic sheet (13) to be communicated with the auxiliary connecting pin (20), and a synchronous pressure lever (39) can be used for pressing the second elastic sheet (12) to be communicated with the second pin (15) and pressing the PE wire elastic sheet (14) to be communicated with the ground pin (17).

19. The dual-power permanent-magnet leakage protector according to claim 1, wherein the elastic sheet (4) comprises a first elastic sheet (11), a second elastic sheet (12) and a third elastic sheet (13), the first elastic sheet (11), the second elastic sheet (12) and the third elastic sheet (13) penetrate through the bottom of the trip unit (5) and are clamped and fixed with the trip unit (5) by the protector base plate (2), the connecting terminal is a pin (3), the pin (3) comprises a second pin (15), a first pin (16), a ground pin (17) and an auxiliary connecting pin (20), the auxiliary connecting pin (20) is electrically connected with the first pin (16), the first pin (16) is connected with a zero line, and the second pin (15) is connected with a live line;

the top of the second pin (15), the top of the first pin (16) and the top of the auxiliary connecting pin (20) are provided with an electric connection contact point (18), the end parts of the first elastic sheet (11), the second elastic sheet (12) and the third elastic sheet (13) are provided with elastic sheet contacts (19) corresponding to the electric connection contact point (18), one side pressure lever (38) can be used for pressing the first elastic sheet (11) down to be communicated with the first pin (16), the other side pressure lever (38) can be used for pressing the third elastic sheet (13) down to be communicated with the auxiliary connecting pin (20), the synchronous pressure lever (39) can be used for pressing the second elastic sheet (12) down to be communicated with the second pin (15), and the PE wire and the ground wire pin (17) can not be disconnected and can be kept communicated.

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