A dual-power permanent magnet leakage protector

Abstract

The invention discloses a dual-power permanent magnetic leakage protector, which relates to the technical field of electrical equipment protection, and comprises: a protector bottom plate, two protector devices arranged in parallel on the upper part of the protector bottom plate, a plug pin arranged on the lower part of the protector bottom plate, and a spring sheet, wherein the protector device controls the disconnection and closing of the dual-power permanent magnetic leakage protector; when the power is turned on, at least one of the protector devices is energized, and the connecting iron core drives the spring sheet pressing block to rotate through the vertical fork groove, so that the side pressure rod located at the bottom of the spring sheet pressing block presses the spring sheet downward, and the pressing down of the spring sheet pressing block can drive the synchronous pressing block to rotate synchronously so that the synchronous pressure rod is pressed downward at the same time, and the magnetic suction plate is fixed by adsorption through the permanent magnet core; a tripping maintenance device is used to fix the position of the locking lever, so that the spring sheet pressing block remains in a pressed state, and the spring sheet and the plug pin remain in a connected state; by adopting the above technical scheme, the invention realizes a new type of leakage protector that can simultaneously perform leakage protection on dual loads.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment protection, in particular to a dual-power permanent magnet leakage protector. Background Art

[0002] When leakage fault occurs in the equipment or when protection is needed for people who are at risk of electric shock, leakage protector can disconnect the main line in time, thus it is widely used. The application technology of leakage protector is very mature. From the protection principle, there are voltage type and current type. From the mechanical structure, there are self-locking type and pull-in type. The leakage protector of mechanical self-locking structure type of current or voltage is usually used. The biggest feature of the mechanical self-locking structure is that when the power supply of the leakage protector in operation is interrupted or the power supply circuit is missing a phase or the line contact is poor, the mechanical self-locking structure of the leakage protector in the closed state will not be able to actively open the closed contacts. At this time, if the power supply circuit is abnormally missing a phase and the ground wire is abnormally energized or leaking, the leakage protector will lose its protective function, resulting in a safety accident; therefore, the application of the suction type is increasing, which can ensure the safety of electricity use; however, the design and use scenarios of the existing leakage protector equipment can only perform leakage protection on a single load, and cannot perform leakage protection on two loads separately; in response to the above problems, a new leakage protector is designed in the present invention that can perform leakage protection on two loads separately at the same time, especially when it is suitable for products such as electric water heaters, it can perform leakage protection on two electric heating tubes separately at the same time.

[0003] The electric control method used in existing dual-power electrical appliances is to achieve micro-disconnection of the circuit through a relay, but due to the relatively small opening distance, the safety is low. Therefore, a dual-power leakage protector device that can achieve a safe 3mm opening distance is needed to replace the above structure. Summary of the invention

[0004] In view of the above-mentioned defects in the prior art, the present invention provides a dual-power permanent magnet leakage protector to solve the problem that the existing leakage protector cannot provide effective and safe leakage protection for dual loads respectively.

[0005] In order to solve the above technical problems, the present invention provides a dual-power permanent magnetic leakage protector, comprising: a protector bottom plate, a spring, two protector devices arranged in parallel on the upper part of the protector bottom plate, and a wiring terminal arranged and fixed on the protector bottom plate, wherein the protector device controls the opening and closing of the dual-power permanent magnetic leakage protector;

[0006] The protector device includes a maintaining tripping device, a connecting device, and a locking device. The locking device is arranged between the maintaining tripping device and the connecting device, and the locking device is used to control the disconnection and closing of the spring piece and the wiring terminal.

[0007] The locking device includes a spring pressure block and a locking lever, and the locking lever is provided with a lock buckle, a magnetic suction plate and a buckle slideway;

[0008] The spring sheet pressing block is provided with a buckle, a vertical fork groove and a side pressure rod, and the buckle is used to cooperate with the lock buckle;

[0009] The connecting device is provided with a connecting iron core extending laterally, and the connecting iron core is engaged with the vertical fork groove; the maintaining tripping device is provided with a longitudinally arranged permanent magnet core, and the permanent magnet core can be used for magnetic adsorption with the magnetic attraction plate;

[0010] The maintaining tripping device also includes a tripping coil, which is fixed inside the maintaining tripping device, and a permanent magnet core is vertically fixed in the inner cavity of the tripping coil; one end of the permanent magnet core is fixedly connected to the bottom of the maintaining tripping device, and the other end of the permanent magnet core is used to adsorb the magnetic absorption plate;

[0011] A synchronous pressing block is provided between the spring piece pressing blocks of the two protector devices arranged in parallel, and the two spring piece pressing blocks rotate coaxially with the synchronous pressing block. A synchronous pressing rod is provided at the bottom of the synchronous pressing block, and shaft sleeve rotating abutment blocks are provided on both sides of the synchronous pressing block. The shaft sleeve rotating driving block on the spring piece pressing block cooperates with the shaft sleeve rotating abutment block, and the spring piece pressing block can drive the synchronous pressing block to rotate synchronously through the cooperation between the shaft sleeve rotating driving block and the shaft sleeve rotating abutment block.

[0012] When the power is turned on and the leakage protector is closed: at least one protector device is energized, and the connecting iron core drives the spring piece pressing block to rotate through the vertical fork groove, so that the side pressure rod at the bottom of the spring piece pressing block presses the spring piece downward, and the pressing down of the spring piece pressing block can drive the synchronous pressing block to rotate synchronously so that the synchronous pressure rod presses the spring piece downward at the same time, and the buckle slides upward along the buckle slideway, and in the process of the buckle sliding to abut against the lock buckle, the magnetic suction plate continues to move downward, and the magnetic suction plate is fixed by the permanent magnet core; the connection maintaining device maintains the tripping device for fixing the position of the locking lever, so that the spring piece pressing block remains in a pressed state, and the spring piece and the wiring terminal remain in a connected state, thereby realizing circuit connection so that the load is connected to the power supply;

[0013] When the power is disconnected and the leakage protector is disconnected: the trip coil is energized, the magnetic field generated by the trip coil and the magnetic field of the permanent magnet core cancel each other out, causing the connection maintaining device to stop working, the locking lever to be released, the lock and the buckle to be disengaged, causing the spring to be disconnected from the terminal, thereby disconnecting the circuit and disconnecting the load from the power supply.

[0014] Among them, the spring clip includes a first spring clip, a second spring clip, a third spring clip and a PE line spring clip, the first spring clip, the second spring clip, the third spring clip and the PE line spring clip pass through the bottom of the maintaining tripping device and are clamped and fixed by the bottom plate and the maintaining tripping device, the wiring terminal is set as a pin, the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected to the first pin, the first pin is connected to the live wire, and the second pin is connected to the neutral wire; the second pin, the first pin, the ground pin and the auxiliary connecting pin are provided with electrical connection contacts on the top, the first spring clip, the second spring clip, the third spring clip and the PE line spring clip are all provided with spring contacts corresponding to the electrical connection contacts at the ends, one side pressure rod can be used to press down the first spring clip to connect with the first pin, the other side pressure rod can be used to press down the third spring clip to connect with the auxiliary connecting pin, the synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and can simultaneously press down the PE line spring clip to connect with the ground pin.

[0015] Among them, the spring clip includes a first spring clip, a second spring clip and a third spring clip, the first spring clip, the second spring clip and the third spring clip pass through the bottom of the maintaining trip device and are clamped and fixed by the bottom plate and the maintaining trip device, the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected to the first pin, the first pin is connected to the live wire, and the second pin is connected to the neutral wire; the second pin, the first pin and the auxiliary connecting pin are provided with electrical connection contacts on the top, and the ends of the first spring clip, the second spring clip and the third spring clip are all provided with spring contacts corresponding to the electrical connection contacts, a pressure rod on one side can be used to press down the first spring clip to connect with the first pin, a pressure rod on the other side can be used to press down the third spring clip to connect with the auxiliary connecting pin, a synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and the PE line and the ground pin cannot be disconnected and remain connected.

[0016] The locking lever is movably hinged to a second support arranged on the connecting device through a second pin shaft, and the spring sheet pressing block is movably hinged to a first support arranged in the middle position of the bottom plate through a first pin shaft.

[0017] Among them, the spring piece pressure block includes an upper pressure block and a lower pressure block, a buckle and a vertical fork groove are arranged on the upper pressure block, a side pressure rod is arranged on the lower pressure block, the upper pressure block and the lower pressure block are hinged by a first pin shaft, and a pressure block spring in a compressed state is arranged between the upper pressure block and the lower pressure block. When the side pressure rod and the spring piece are in abutment state, the elastic force of the pressure block spring can enable the side pressure rod to maintain a stable force on the spring piece, and the sleeve rotation drive block is arranged on the rotating sleeve of the upper part or the lower part of the pressure block.

[0018] The hinged joint between the upper and lower parts of the pressing block is provided with an articulated seat, the first pin shaft is passed through the articulated seat, and a limit stopper is also provided on the articulated seat, and the limit stopper is used to control the opening angle between the upper and lower parts of the pressing block when rotating with the first pin shaft as the axis; the positions of the upper and lower parts of the pressing block corresponding to the setting of the pressing block spring are provided with spring grooves, and a spring column is also provided in the spring groove, and the spring groove and the spring column are used to install the pressing block spring, and the upper and lower parts of the pressing block are connected by the pressing block spring to form a spring sheet pressing block, so that The spring piece pressure block no longer relies solely on the fixed limiting mechanical structure to compress the spring piece. The pressure block spring can enable the side pressure rod and the synchronous pressure rod to apply a stable pressing force to the spring piece. After mechanical wear occurs due to long-term use, the elastic force of the pressure block spring can also increase the opening angle between the upper part of the pressure block and the lower part of the pressure block when rotating with the first pin shaft as the axis, thereby ensuring the pressing force of the side pressure rod and the synchronous pressure rod on the spring piece, so that the electrical connection in the dual-power permanent magnet leakage protector is stable and reliable.

[0019] Wherein, wedge-shaped buckle feet are provided at the bottom of the maintaining tripping device and the communicating device, and the maintaining tripping device and the communicating device are buckled and fixed to the bottom plate respectively through the buckle feet.

[0020] The connecting device further comprises a connecting coil and a connecting spring. The connecting coil is fixed inside the connecting device. The connecting spring and the connecting iron core are horizontally arranged in the inner cavity of the connecting coil.

[0021] Among them, a pre-articulation device is provided on the articulated seat, and the pre-articulation device includes a boss and a clamping groove. The boss is located at the hinge of the upper part of the pressing block, and the clamping groove is located at the hinge of the lower part of the pressing block. The pre-articulation of the upper part and the lower part of the pressing block is achieved through the cooperation of the boss and the clamping groove.

[0022] Among them, a pre-articulation device is provided on the articulated seat, which includes a boss and a clamping groove. The clamping groove is located at the hinge of the upper part of the pressing block, and the boss is located at the hinge of the lower part of the pressing block. The pre-articulation of the upper part and the lower part of the pressing block is achieved through the cooperation of the boss and the clamping groove.

[0023] Among them, a clamping top block is also provided on the locking lever, and the clamping top block is located on one side of the lock. When the power is turned on, the connecting iron core drives the spring piece clamping block to rotate through the vertical fork groove, and the buckle slides upward along the buckle slideway, and the buckle slides through the lock and then instantly abuts against the clamping top block. Through the abutment with the clamping top block, the magnetic attraction plate moves downward and is adsorbed and fixed by the permanent magnet core. Through the setting of the clamping top block, the buckle can push the magnetic attraction plate to rotate an additional angle, so that the first iron core is easier to adsorb the magnetic attraction plate.

[0024] Among them, an indicator block is also provided on the synchronous pressing block. The indicator block is located on the upper part of the synchronous pressing block and the color of the indicator block is red.

[0025] Among them, a limit baffle is also provided on the locking rod, which is arranged at the end of the locking rod and located on the upper part of the connecting device. When the power is disconnected, the limit baffle can abut against the upper part of the connecting device to limit the rotation angle of the locking rod. The rotation angle range of the locking rod is limited by the limiting effect of the limit baffle; and the service life of the dual-power permanent magnet leakage protector is greatly improved through the design of the magnetic suction plate.

[0026] Among them, a protrusion is provided on the synchronous pressure rod corresponding to the PE line spring piece. When the synchronous pressure rod is pressed down, the protrusion makes the PE line spring piece connected with the corresponding pin before the first spring piece, the second spring piece and the third spring piece; when the side pressure rod is lifted, the protrusion makes the PE line spring piece disconnected from the corresponding pin after the first spring piece, the second spring piece and the third spring piece.

[0027] Among them, a pressure plate pin hole is also provided on the locking lever, and the magnetic suction plate is hinged with the pressure plate pin hole through a pin shaft.

[0028] Wherein, the shaft sleeve rotation driving block and the shaft sleeve rotation abutment block are both open shaft sleeves.

[0029] Among them, the spring clip includes a first spring clip, a second spring clip, a third spring clip and a PE line spring clip, the first spring clip, the second spring clip, the third spring clip and the PE line spring clip pass through the bottom of the maintaining tripping device and are clamped and fixed by the bottom plate and the maintaining tripping device, the wiring terminal is set as a pin, the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected to the first pin, the first pin is connected to the neutral line, and the second pin is connected to the live line; the second pin, the first pin, the ground pin and the auxiliary connecting pin are provided with electrical connection contacts on the top, the first spring clip, the second spring clip, the third spring clip and the PE line spring clip are all provided with spring contacts corresponding to the electrical connection contacts at the ends, one side pressure rod can be used to press down the first spring clip to connect with the first pin, the other side pressure rod can be used to press down the third spring clip to connect with the auxiliary connecting pin, the synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and can simultaneously press down the PE line spring clip to connect with the ground pin.

[0030] Among them, the spring clip includes a first spring clip, a second spring clip and a third spring clip, the first spring clip, the second spring clip and the third spring clip pass through the bottom of the maintaining trip device and are clamped and fixed by the bottom plate and the maintaining trip device, the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected to the first pin, the first pin is connected to the neutral wire, and the second pin is connected to the live wire; the second pin, the first pin and the auxiliary connecting pin are provided with electrical connection contacts on the top, and the ends of the first spring clip, the second spring clip and the third spring clip are all provided with spring contacts corresponding to the electrical connection contacts, a pressure rod on one side can be used to press down the first spring clip to connect with the first pin, a pressure rod on the other side can be used to press down the third spring clip to connect with the auxiliary connecting pin, a synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and the PE line and the ground pin cannot be disconnected and remain connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The present invention is a three-dimensional dual-power permanent magnetic leakage protector Figure 1 ;

[0032] Figure 2 The present invention is a three-dimensional dual-power permanent magnetic leakage protector Figure 2 ;

[0033] Figure 3 This is a structural diagram of a protector device of a dual-power permanent magnet leakage protector of the present invention;

[0034] Figure 4 This is a structural diagram of the maintenance tripping device of the dual-power permanent magnetic leakage protector of the present invention;

[0035] Figure 5 It is a structural diagram of the protector bottom plate, pins and spring pieces of the dual-power permanent magnetic leakage protector of the present invention;

[0036] Figure 6 It is a structural diagram of the pins and springs of the dual-power permanent magnetic leakage protector of the present invention;

[0037] Figure 7 This is a structural diagram of the protector bottom plate of the dual-power permanent magnet leakage protector of the present invention;

[0038] Figure 8 The locking device structure of the dual-power permanent magnet leakage protector of the present invention Figure 1 ;

[0039] Fig. 9 The locking device structure of the dual-power permanent magnet leakage protector of the present invention Figure 2 ;

[0040] Fig.10 The locking device structure of the dual-power permanent magnet leakage protector of the present invention Figure 3 ;

[0041] Fig.11 The structure of the spring piece pressing block and the synchronous pressing block of the dual-power permanent magnetic leakage protector of the present invention Figure 1 ;

[0042] Fig.12 The structure of the spring piece pressing block and the synchronous pressing block of the dual-power permanent magnetic leakage protector of the present invention Figure 2 ;

[0043] Fig.13 This is a structural diagram of the locking lever of the dual-power permanent magnet leakage protector of the present invention;

[0044] Fig.14 This is a structural diagram of the spring block of the dual-power permanent magnetic leakage protector of the present invention;

[0045] Fig.15 The structure of the spring piece pressing block and the synchronous pressing block of the dual-power permanent magnetic leakage protector of the present invention Figure 3 ;

[0046] In the figure: 1 is a protector device; 2 is a protector bottom plate; 3 is a pin; 4 is a spring; 5 is a tripping device for maintaining; 6 is a connecting device; 7 is a locking device; 8 is a synchronous pressure block; 10 is a pin pressure strip; 11 is a first spring; 12 is a second spring; 13 is a third spring; 14 is a PE wire spring; 15 is a second pin; 16 is a first pin; 17 is a ground pin; 18 is an electrical connection contact; 19 is a spring contact; 20 is an auxiliary connection pin; 21 is a permanent magnet core; 22 is a tripping coil; 23 is a connecting iron core; 24 is a connecting coil; 25 is a connecting spring; 26 is a spring pressure block; 27 is a locking device. The lever; 28 is the first pin shaft; 29 is the second pin shaft; 30 is the first support; 31 is the second support; 32 is the indicator block; 33 is the lock buckle; 34 is the magnetic suction plate; 35 is the buckle slide; 36 is the buckle; 37 is the vertical fork groove; 38 is the side pressure rod; 39 is the synchronous pressure rod; 41 is the upper part of the pressure block; 42 is the lower part of the pressure block; 43 is the pressure block spring; 44 is the limit stop block; 45 is the buckle foot; 46 is the boss; 47 is the clamping groove; 48 is the clamping top block; 49 is the limit stop plate; 50 is the convex block; 51 is the pressure plate pin hole; 52 is the shaft sleeve rotation drive block; 53 is the shaft sleeve rotation abutment block; 54 is the pin pressure block. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0048] Embodiment 1:

[0049] A dual-power permanent magnet leakage protector according to an embodiment of the present invention, such as Figures 1 to 12 As shown, it includes: a protector base plate 2, a spring 4, two protector devices 1 arranged in parallel on the upper part of the protector base plate 2, and a wiring terminal arranged at the lower part of the protector base plate 2. In this embodiment, the wiring terminal is set as a pin 3, and the pin 3 can be directly inserted into the socket. In other use environments, a wire can be drawn from the wiring terminal for electrical connection. The protector device 1 controls the disconnection and closing of the dual-power permanent magnetic leakage protector;

[0050] Each protector device 1 includes a maintaining tripping device 5, a connecting device 6, and a locking device 7. The locking device 7 is arranged between the maintaining tripping device 5 and the connecting device 6. The locking device 7 is used to control the disconnection and closing of the spring 4 and the pin 3.

[0051] The locking device 7 includes a spring block 26 and a locking lever 27, on which a lock 33, a magnetic plate 34 and a buckle slide 35 are provided; Fig.14 As shown, the spring sheet pressing block 26 is provided with a buckle 36, a vertical fork groove 37 and a side pressure rod 38, and the buckle 36 is used to cooperate with the lock buckle 33;

[0052] The connecting device 6 is provided with a connecting iron core 23 extending laterally, and the connecting iron core 23 is snap-fitted with the vertical fork groove 37. The connecting device 6 also includes a connecting coil 24 and a connecting spring 25. The connecting coil 24 is fixed inside the connecting device 6, and the connecting spring 25 and the connecting iron core 23 are horizontally arranged in the inner cavity of the connecting coil 24; the maintaining tripping device 5 is provided with a longitudinally arranged permanent magnet core 21, and the permanent magnet core 21 can be used for magnetic adsorption with the magnetic attraction plate 34. In this embodiment, the magnetic attraction plate 34 is a metal plate, such as a steel plate. The maintaining tripping device 5 also includes a tripping coil 22, and the tripping coil 22 is fixed inside the maintaining tripping device 5. The permanent magnet core 21 is vertically fixed in the inner cavity of the tripping coil 22; one end of the permanent magnet core 21 is fixedly connected to the bottom of the maintaining tripping device 5, and the other end of the permanent magnet core 21 is used to adsorb the magnetic attraction plate 34;

[0053] A synchronous pressure block 8 is provided between the spring piece pressure blocks 26 of the two protector devices 1 arranged in parallel, and the two spring piece pressure blocks 26 rotate coaxially with the synchronous pressure blocks 8. A synchronous pressure rod 39 is provided at the bottom of the synchronous pressure block 8, and shaft sleeve rotation abutment blocks 53 are provided on both sides of the synchronous pressure block 8. The shaft sleeve rotation drive block 52 on the spring piece pressure block 26 cooperates with the shaft sleeve rotation abutment block 53, and the spring piece pressure block 26 can drive the synchronous pressure block 8 to rotate synchronously through the cooperation of the shaft sleeve rotation drive block 52 and the shaft sleeve rotation abutment block 53. In this embodiment, the spring piece pressure block 26 is movably hinged with the first support 30 set in the middle position of the protector bottom plate 2 through the first pin shaft 28, and the two protector devices The two spring piece pressing blocks 26 of 1 and the synchronous pressing block 8 between the two spring piece pressing blocks 26 are jointly arranged on the first pin shaft 28 and can rotate around the first pin shaft 28. The spring piece pressing block 26 can be driven to rotate by the connecting iron core 23, and the synchronous pressing block 8 is rotated under the drive of the spring piece pressing block 26, that is, when the sleeve rotating driving block 52 rotates with the spring piece pressing block 26, the sleeve rotating driving block 52 located on the rotating sleeve of the spring piece pressing block 26 and the sleeve rotating abutting block 53 located on the rotating sleeve of the synchronous pressing block 8 are abutted and matched, so that when the side pressure rod 38 at the bottom of the spring piece pressing block 26 presses down the corresponding spring piece, the synchronous pressure rod 39 presses down the corresponding spring piece at the same time;

[0054] When the power is turned on, that is, when the leakage protector is closed, at least one protector device 1 is energized, and the connecting iron core 23 drives the spring piece pressing block 26 to rotate through the vertical fork groove 37, so that the side pressure rod 38 at the bottom of the spring piece pressing block 26 presses the spring piece 4 downward, and the downward pressure of the spring piece pressing block 26 can drive the synchronous pressing block 8 to rotate synchronously so that the synchronous pressure rod 39 is pressed downward at the same time, and the buckle 36 slides upward along the buckle slide 35, and in the process of the buckle 36 sliding to abut against the lock buckle 33, the magnetic suction plate 34 continues to move downward, such as Fig.10 As shown, ensuring that the magnetic attraction plate 34 continues to move downward can avoid the situation where the magnetic attraction plate 34 pauses or jumps during the sliding process, because the pause or jump will affect the speed at which the magnetic attraction plate 34 and the permanent magnet core 21 are adsorbed and fixed, and too slow a speed will cause the leakage protector to fail to connect; therefore, the magnetic attraction plate 34 is adsorbed and fixed by the permanent magnet core 21; the tripping device 5 is maintained to fix the position of the locking lever 27, so that the spring piece pressing block 26 remains in a downward state, and the spring piece 4 and the pin 3 remain in a connected state, thereby achieving circuit connectivity, even if the load is connected to the power supply;

[0055] When the power is disconnected, the energy storage capacitor discharges to the tripping coil 22, and the magnetic field generated by the tripping coil 22 cancels out the magnetic field of the permanent magnet core 21, that is, the cylindrical permanent magnet core 21 no longer generates an adsorbing magnetic force on the magnetic attraction plate 34, so that the locking lever 27 is released, the lock 33 is disengaged from the buckle 36, so that the spring piece 4 is disconnected from the terminal, and the load is disconnected from the power supply. Through the above structure, this embodiment achieves the problem that the spring piece 4 and the terminal of the dual-power leakage protector can achieve a safe 3mm opening distance, and through the provision of the synchronous pressure block 8, it saves costs and simplifies the connection device.

[0056] like Fig.15 As shown, in the present embodiment, the shaft sleeve rotation driving block 52 and the shaft sleeve rotation abutment block 53 are both open shaft sleeves, and when the shaft sleeve rotation driving block 52 and the shaft sleeve rotation abutment block 53 cooperate, there is a reserved rotation space between the shaft sleeve rotation driving block 52 and the shaft sleeve rotation abutment block 53, that is, when the power is turned on, the connecting iron core 23 drives the spring piece pressing block 26 to rotate through the vertical fork groove 37. At the same time, through the cooperation and abutment between the upper part of the shaft sleeve rotation driving block 52 and the upper part of the shaft sleeve rotation abutment block 53, the synchronous pressing block 8 rotates at the same time to achieve the compression of the spring piece 4. When the power is disconnected, the locking lever 27 is released, and the spring piece pressing block 26 is no longer pressed down and rotates. In this process, since there is a reserved rotation space between the shaft sleeve rotation driving block 52 and the shaft sleeve rotation abutment block 53, that is, there is a certain gap between the lower part of the shaft sleeve rotation driving block 52 and the lower part of the shaft sleeve rotation abutment block 53, the synchronous pressing block 8 can lag behind the rotation of the spring piece pressing block 26.

[0057] The spring clip 4 includes a first spring clip 11, a second spring clip 12, a third spring clip 13 and a PE line spring clip 14, which pass through the bottom of the maintaining trip device 5 and are clamped and fixed by the protector bottom plate 2 and the maintaining trip device 5, and 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 to the first pin 16, the first pin 16 is connected to the live wire, and the second pin 15 is connected to the neutral wire;

[0058] The second pin 15, the first pin 16, the ground pin 17 and the auxiliary connecting pin 20 are provided with an electrical connection contact 18 at the top, and the first spring sheet 11, the second spring sheet 12, the third spring sheet 13 and the PE line spring sheet 14 are provided with spring sheet contacts 19 corresponding to the electrical connection contact 18 at the ends. The one side pressure rod 38 can be used to press down the first spring sheet 11 to connect with the first pin 16, and the other side pressure rod 38 can be used to press down the third spring sheet 13 to connect with the auxiliary connecting pin 20. The synchronous pressure rod 39 can be used to press down the second spring sheet 12 to connect with the second pin 15, and can also press down the PE line spring sheet 14 at the same time. The E-line spring piece 14 is connected to the ground pin 17. Further, in the specific implementation process, when only one of the protector devices 1 is powered on, only the spring piece pressing block 26 corresponding to the protector device 1 remains in a depressed state, that is, the first spring piece 11 is connected to the first pin 16, or the third spring piece 13 is connected to the auxiliary connecting pin 20. Since the auxiliary connecting pin 20 is electrically connected to the first pin 16, and as long as one spring piece pressing block 26 remains in a depressed state, it will also drive the synchronous pressing block 8 to remain in a depressed state, that is, the second spring piece 12 is connected to the second pin 15, P The E-wire spring piece 14 is connected to the ground wire pin 17, so when any protector device 1 is powered on, it can ensure that the leakage protector is in the power-on state and plays a protective role. When the two protector devices 1 are powered on at the same time, the two loads in the circuit can be protected from leakage at the same time, which is the dual-power leakage protector of this embodiment. For further application of this embodiment, for example, when the dual-power leakage protector of this embodiment is applied to a water heater, the two electric heating tubes can be controlled respectively at the same time to heat the water storage and the water outlet of the water heater. Specifically, the water heater An internal water storage tank and an external water outlet tank are provided, and each is provided with an electric heating pipe for heating. The two protector devices 1 respectively perform leakage protection on the two electric heating pipes. The internal water storage tank is heated to about 40°C by the electric heating pipe for insulation. When hot water is needed, the external water outlet tank can also be quickly heated to about 75°C. The above scheme can achieve better insulation effect and slower heat dissipation. Compared with insulation at a higher temperature, it has better energy-saving effect. At the same time, the two electric heating pipes can be protected from leakage by the leakage protector of this embodiment.

[0059] A protrusion 50 is provided on the synchronous pressure rod 39 at the position corresponding to the PE line spring piece 14. When the synchronous pressure rod 39 is pressed down, the protrusion 50 makes the PE line spring piece 14 connected with the corresponding pin 3 before the first spring piece 11, the second spring piece 12 and the third spring piece 13; when the side pressure rod 38 is lifted, the protrusion 50 makes the PE line spring piece 14 disconnected from the corresponding pin 3 after the first spring piece 11, the second spring piece 12 and the third spring piece 13.

[0060] like Figure 3 and Figure 4As shown, wedge-shaped buckle feet 45 are provided at the bottom of the maintaining trip device 5 and the connecting device 6, and the maintaining trip device 5 and the connecting device 6 are respectively buckled and fixed to the protector bottom plate 2 through the buckle feet 45; the installation is simple and convenient, and it is firm and reliable. The mold can be directly used to open the mold to reduce the production cost. Pin pressure strips 10 are also provided on both sides of the bottom of the maintaining trip device 5 for pressing the pins 3, and a pin pressure block 54 is also provided between the protector device 1 and the protector bottom plate 2 for pressing the pins 3.

[0061] Embodiment 2:

[0062] Compared with the first embodiment, the spring piece 4 includes a first spring piece 11, a second spring piece 12 and a third spring piece 13, the first spring piece 11, the second spring piece 12 and the third spring piece 13 pass 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 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 to the first pin 16, the first pin 16 is connected to the live wire, and the second pin 15 is connected to the neutral wire;

[0063] Electrical connection contacts 18 are provided on the tops of the second pin 15, the first pin 16 and the auxiliary connecting pin 20, and spring contacts 19 corresponding to the electrical connection contacts 18 are provided at the ends of the first spring sheet 11, the second spring sheet 12 and the third spring sheet 13. A pressure rod 38 on one side can be used to press down the first spring sheet 11 to connect with the first pin 16, and a pressure rod 38 on the other side can be used to press down the third spring sheet 13 to connect with the auxiliary connecting pin 20. A synchronous pressure rod 39 can be used to press down the second spring sheet 12 to connect with the second pin 15, and the PE wire and the ground wire pin 17 cannot be disconnected and remain connected.

[0064] In this embodiment, the first spring clip 11 corresponds to the first pin 16, the second spring clip 12 corresponds to the second pin 15, and the third spring clip 13 corresponds to the auxiliary connecting pin 20. In this embodiment, the PE line spring clip 14 is removed, and the ground wire pin 17 is connected to the PE line through a wire, so that the PE line remains in a continuously connected state.

[0065] Embodiment 3:

[0066] In this embodiment, the spring piece pressure block 26 includes a pressure block upper part 41 and a pressure block lower part 42, the buckle 36 and the vertical fork groove 37 are arranged on the pressure block upper part 41, the side pressure rod 38 is arranged on the pressure block lower part 42, the pressure block upper part 41 and the pressure block lower part 42 are hinged by the first pin shaft 28, and a compression block spring 43 is arranged between the pressure block upper part 41 and the pressure block lower part 42. When the side pressure rod 38 and the spring piece 4 are in abutment state, the elastic force of the pressure block spring 43 can enable the side pressure rod 38 to maintain a stable force on the spring piece 4; according to the difference in the position of the installation layout of the leakage protector, the position of the first support 30 and the second support 31 can be adjusted, and the sleeve rotation drive block 52 is arranged on the rotating sleeve of the pressure block upper part 41 or the pressure block lower part 42.

[0067] like Figure 8 , Fig. 9 and Fig.10 As shown, a hinge seat is provided at the hinged joint of the upper portion 41 of the pressure block and the lower portion 42 of the pressure block, the first pin shaft 28 is passed through the hinge seat, and a limit stop block 44 is also provided on the hinge seat. The limit stop block 44 is used to control the opening angle between the upper portion 41 of the pressure block and the lower portion 42 of the pressure block when they rotate with the first pin shaft 28 as the axis; that is, the rotation angle of the upper portion 41 of the pressure block and the lower portion 42 of the pressure block around the first pin shaft 28 is limited within a certain range. At the same time, this design can also ensure that the spring piece pressure block 26 will not automatically disintegrate after assembly due to the elastic force of the pressure block spring 43 after assembly is completed, that is, the upper portion 41 of the pressure block and the lower portion 42 of the pressure block can be limited.

[0068] Spring grooves are provided at the positions where the pressure block spring 43 is set corresponding to the upper part 41 and the lower part 42 of the pressure block. The spring grooves are used to install the pressure block spring 43. At the same time, it can also ensure that the pressure block spring 43 will not fall off, making the installation simpler and more convenient. Further, spring columns are provided in the spring grooves. The spring grooves and the spring columns are used to install the pressure block spring 43 to ensure the installation and fixing effect.

[0069] Embodiment 4:

[0070] In this embodiment, if Fig.10 As shown, a pre-articulation device is provided on the articulated seat, and the pre-articulation device includes a boss 46 and a clamping groove 47. The boss 46 is located at the hinge of the upper part 41 of the pressure block, and the clamping groove 47 is located at the hinge of the lower part 42 of the pressure block. Through the cooperation of the boss 46 and the clamping groove 47, the pre-articulation of the upper part 41 of the pressure block and the lower part 42 of the pressure block is achieved, that is, even if the first pin shaft 28 is not installed, the installation of the spring piece pressure block 26 can be completed. At the same time, this design can further ensure the coaxiality of the upper part 41 of the pressure block and the lower part 42 of the pressure block, which can reduce wear and tear, and the overall installation is simpler and more convenient.

[0071] Embodiment 5:

[0072] Compared with Example 4, in this embodiment, a pre-articulation device is provided on the articulated seat, and the pre-articulation device includes a boss 46 and a snap-in groove 47. The snap-in groove 47 is located at the hinge of the upper part 41 of the pressing block, and the boss 46 is located at the hinge of the lower part 42 of the pressing block. Through the cooperation of the boss 46 and the snap-in groove 47, the pre-articulation of the upper part 41 of the pressing block and the lower part 42 of the pressing block is achieved.

[0073] Embodiment 6:

[0074] like Fig.10 , 13 As shown, compared with Example 1, in this embodiment, a pressing top block 48 is further provided on the locking lever 27, and the pressing top block 48 is located on one side of the lock buckle 33. When the power is turned on, the connecting iron core 23 drives the spring piece pressing block 26 to rotate through the vertical fork groove 37, and the buckle 36 slides upward along the buckle slideway 35. After the buckle 36 slides through the lock buckle 33, it abuts against the pressing top block 48 instantly, and the magnetic suction plate 34 moves downward to the lowest position by abutting against the pressing top block 48, so that it is easier to be adsorbed and fixed by the permanent magnet core 21; that is, by setting the pressing top block 48, The buckle 36 can push the magnetic attraction plate 34 to rotate an additional and rapid angle, so that the magnetic attraction plate 34 can move to the lowest position. When the power is turned on, the connecting iron core 23 retracts and can pull the spring pressure block 26 to the position of the maximum rotation angle. At this time, the buckle 36 passes through the buckle slide 35 and the lock buckle 33 in turn, and finally abuts against the clamping top block 48, so that the buckle 36 can push the magnetic attraction plate 34 to rotate an additional angle and move to the lowest position, which can ensure that the permanent magnet core 21 can more easily adsorb the magnetic attraction plate 34 under the action of the tripping coil 22.

[0075] Embodiment 7:

[0076] In this embodiment, if Fig.11 As shown, an indicator block 32 is also provided on the synchronous pressure block 8. The indicator block 32 is located at the upper part of the synchronous pressure block 8. The indicator block 32 is red in color. After the leakage protector of the embodiment is installed on the shell, the state of the leakage protector can be judged by the indicator block 32.

[0077] Embodiment 8:

[0078] In this embodiment, if Fig.10As shown, a limit baffle 49 is further provided on the locking lever 27. The limit baffle 49 is arranged at the end of the locking lever 27 and is located on the upper part of the connecting device 6. When the power is disconnected, the limit baffle 49 can abut against the upper part of the connecting device 6 to limit the rotation angle of the locking lever 27; specifically, when the power is disconnected, the limit baffle 49 can abut against the upper part of the connecting device 6 to limit the rotation angle of the locking lever 27, that is, the limit baffle 49 abuts against the top surface of the upper part of the connecting device 6, so that after the power is disconnected, the locking lever 27 can only rotate around the second pin shaft 29 within a limited range to prevent affecting other parts.

[0079] Embodiment 9:

[0080] In this embodiment, if Fig.10 As shown, a pressure plate pin hole 51 is also provided on the locking lever 27, and the magnetic plate 34 is hinged with the pressure plate pin hole 51 through a pin shaft. The pressure plate pin hole 51 is located on the upper part of the locking lever 27, that is, the magnetic plate 34 and the locking lever 27 are in a movable hinged state, and the magnetic plate 34 can rotate around the pin shaft within a certain range, which can ensure that the magnetic plate 34 has a maximum contact area when it is adsorbed and contacted with the permanent magnet core 21, thereby ensuring a large adsorption force, and effectively improving the service life of the dual-power permanent magnet leakage protector.

[0081] Embodiment 10:

[0082] In this embodiment, compared with Embodiment 1, the first pin 16 is connected to the neutral line, and the second pin 15 is connected to the live line. Specifically, the spring clip includes a first spring clip, a second spring clip, a third spring clip and a PE line spring clip. The first spring clip, the second spring clip, the third spring clip and the PE line spring clip pass through the bottom of the maintaining tripping device and are clamped and fixed by the bottom plate and the maintaining tripping device. The wiring terminal is set as a pin, and the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin. The auxiliary connecting pin is electrically connected to the first pin, and the first pin 16 is connected to the ground pin. The neutral line is connected, and the second pin 15 is connected to the live wire; electrical connection contacts are arranged on the tops of the second pin, the first pin, the ground pin and the auxiliary connection pin, and the ends of the first spring clip, the second spring clip, the third spring clip and the PE line spring clip are all provided with spring clip contacts corresponding to the electrical connection contacts, a pressure rod on one side can be used to press down the first spring clip to connect with the first pin, and a pressure rod on the other side can be used to press down the third spring clip to connect with the auxiliary connection pin, and a synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and can simultaneously press down the PE line spring clip to connect with the ground pin.

[0083] Embodiment 11:

[0084] In this embodiment, compared with Example 2, the first pin 16 is connected to the neutral line, and the second pin 15 is connected to the live line. Specifically, the spring clip includes a first spring clip, a second spring clip and a third spring clip, the first spring clip, the second spring clip and the third spring clip pass through the bottom of the maintaining trip device and are clamped and fixed by the bottom plate and the maintaining trip device, the pin includes a second pin, a first pin, a ground pin and an auxiliary connecting pin, the auxiliary connecting pin is electrically connected to the first pin, the first pin 16 is connected to the neutral line, and the second pin 15 is connected to the live line; electrical connection contacts are provided on the tops of the second pin, the first pin and the auxiliary connecting pin, and spring contacts corresponding to the electrical connection contacts are provided at the ends of the first spring clip, the second spring clip and the third spring clip, a pressure rod on one side can be used to press down the first spring clip to connect with the first pin, a pressure rod on the other side can be used to press down the third spring clip to connect with the auxiliary connecting pin, a synchronous pressure rod can be used to press down the second spring clip to connect with the second pin, and the PE line and the ground pin cannot be disconnected and remain connected.

[0085] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A dual-power permanent magnet leakage protector, It is characterized in that The dual-power permanent-magnetic leakage protector comprises: a protector device (1), a protector base plate (2), a wiring terminal and a spring (4), wherein two protector devices (1) are arranged in parallel on the upper part of the protector base plate (2), and the wiring terminal is installed on the protector base plate (2), and the protector device (1) controls the opening and closing of the dual-power permanent-magnetic leakage protector; The protector device (1) comprises a maintaining tripping device (5), a connecting device (6), and a locking device (7), wherein the locking device (7) is arranged between the maintaining tripping device (5) and the connecting device (6), and the locking device (7) is used to control the disconnection and closing of the spring sheet (4) and the connecting terminal; The locking device (7) comprises a spring sheet pressing block (26) and a locking lever (27), and the locking lever (27) is provided with a lock buckle (33), a magnetic attraction plate (34) and a buckle slideway (35); The spring sheet pressing block (26) is provided with a buckle (36), a vertical fork groove (37), a shaft sleeve rotation driving block (52) and a side pressure rod (38), and the buckle (36) is used to cooperate with the lock buckle (33) to abut against the lock buckle; The connecting device (6) is provided with a connecting iron core (23) extending laterally, and the connecting iron core (23) is engaged with the vertical fork groove (37); the maintaining tripping device (5) is provided with a longitudinally arranged permanent magnet core (21), and the permanent magnet core (21) is used for magnetically adsorbing and cooperating with the magnetic attraction plate (34); The maintaining tripping device (5) further comprises a tripping coil (22), wherein the tripping coil (22) is fixed inside the maintaining tripping device (5), and the permanent magnet core (21) is vertically fixed in the inner cavity of the tripping coil (22); one end of the permanent magnet core (21) is fixedly connected to the bottom of the maintaining tripping device (5), and the other end of the permanent magnet core (21) is used to adsorb the magnetic attraction plate (34); A synchronous pressure block (8) is provided between the spring-type pressure blocks (26) of the two protector devices (1) arranged in parallel. The two spring-type pressure blocks (26) rotate coaxially with the synchronous pressure blocks (8). A synchronous pressure rod (39) is provided at the bottom of the synchronous pressure block (8). A shaft sleeve rotating abutment block (53) is provided on both sides of the synchronous pressure block (8). The shaft sleeve rotating drive block (52) on the spring-type pressure block (26) cooperates with the shaft sleeve rotating abutment block (53), and the spring-type pressure block (26) drives the synchronous pressure block (8) to rotate synchronously through the cooperation between the shaft sleeve rotating drive block (52) and the shaft sleeve rotating abutment block (53). When the leakage protector is closed: at least one protector device (1) is energized, the connecting iron core (23) drives the spring sheet pressing block (26) to rotate through the vertical fork groove (37), so that the side pressure rod (38) located at the bottom of the spring sheet pressing block (26) presses the spring sheet (4) downward, and the spring sheet pressing block (26) drives the synchronous pressure block (8) to rotate synchronously, so that the synchronous pressure rod (39) presses the spring sheet (4) downward at the same time, and the buckle (36) moves along the buckle slideway (35) slides upward, and in the process that the buckle (36) slides to abut against the lock buckle (33), the magnetic attraction plate (34) continues to move downward, and the magnetic attraction plate (34) is fixed by adsorption through the permanent magnet core (21); the maintaining release device (5) is used to fix the position of the locking lever (27), so that the spring piece pressing block (26) remains in a downwardly pressed state, and the spring piece (4) and the wiring terminal remain in a connected state, so that the load is connected to the power supply; When the leakage protector is disconnected, the tripping coil (22) is energized, the magnetic field generated by the tripping coil (22) and the magnetic field of the permanent magnet core (21) are offset, so that the locking lever (27) is released, the lock buckle (33) and the buckle (36) are disconnected, so that the spring (4) is disconnected from the wiring terminal, and the load is disconnected from the power supply.

2. The dual-power permanent magnet leakage protector as claimed in claim 1, It is characterized in that The spring clip (4) comprises a first spring clip (11), a second spring clip (12), a third spring clip (13) and a PE line spring clip (14); the first spring clip (11), the second spring clip (12), the third spring clip (13) and the PE line spring clip (14) pass 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 wiring terminal is configured 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 to the first pin (16); the first pin (16) is connected to the live wire; and the second pin (15) is connected to the neutral wire; The second plug pin (15), the first plug pin (16), the ground wire plug pin (17) and the auxiliary connecting pin (20) are provided with electrical connection contacts (18) at the top, and the first spring sheet (11), the second spring sheet (12), the third spring sheet (13) and the PE wire spring sheet (14) are provided with spring sheet contacts (19) corresponding to the electrical connection contacts (18) at the ends. A pressure rod (38) on one side is used to press down the first spring sheet (11) to connect with the first plug pin (16), and a pressure rod (38) on the other side is used to press down the third spring sheet (13) to connect with the auxiliary connecting pin (20). The synchronous pressure rod (39) is used to press down the second spring sheet (12) to connect with the second plug pin (15), and simultaneously press down the PE wire spring sheet (14) to connect with the ground wire plug pin (17).

3. The dual-power permanent magnet leakage protector as claimed in claim 1, It is characterized in that The spring sheet (4) comprises a first spring sheet (11), a second spring sheet (12) and a third spring sheet (13), the first spring sheet (11), the second spring sheet (12) and the third spring sheet (13) pass 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 wiring terminal is configured 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 to the first pin (16), the first pin (16) is connected to the live wire, and the second pin (15) is connected to the neutral wire; The second plug pin (15), the first plug pin (16) and the auxiliary connecting pin (20) are provided with electrical connection contacts (18) at their tops; the first spring sheet (11), the second spring sheet (12) and the third spring sheet (13) are provided with spring sheet contacts (19) corresponding to the electrical connection contacts (18) at their ends; a pressure rod (38) on one side is used to press down the first spring sheet (11) to connect with the first plug pin (16); a pressure rod (38) on the other side is used to press down the third spring sheet (13) to connect with the auxiliary connecting pin (20); the synchronous pressure rod (39) is used to press down the second spring sheet (12) to connect with the second plug pin (15); and the PE wire and the ground wire plug pin (17) cannot be disconnected and remain connected.

4. The dual-power permanent magnet leakage protector as claimed in claim 1, It is characterized in that The locking lever (27) is movably hinged to a second support (31) arranged on the connecting device (6) via a second pin shaft (29), and the spring pressing block (26) is movably hinged to a first support (30) arranged at a middle position of the protector bottom plate (2) via a first pin shaft (28).

5. The dual-power permanent magnet leakage protector as claimed in claim 4, It is characterized in that The spring sheet pressure block (26) comprises a pressure block upper part (41) and a pressure block lower part (42); the buckle (36) and the vertical fork groove (37) are arranged on the pressure block upper part (41); the side pressure rod (38) is arranged on the pressure block lower part (42); the pressure block upper part (41) and the pressure block lower part (42) are hingedly connected through a first pin shaft (28); a pressure block spring (43) in a compressed state is arranged between the pressure block upper part (41) and the pressure block lower part (42); when the side pressure rod (38) and the spring sheet (4) are in abutment state, the elastic force of the pressure block spring (43) enables the side pressure rod (38) to maintain a stable force on the spring sheet (4); and the shaft sleeve rotation driving block (52) is arranged on the rotating shaft sleeve of the pressure block upper part (41) or the pressure block lower part (42).

6. The dual-power permanent magnet leakage protector as claimed in claim 5, It is characterized in that A hinge seat is provided at the hinged joint between the upper part (41) and the lower part (42) of the pressing block, the first pin shaft (28) is inserted into the hinge seat, and a limit stopper (44) is also provided on the hinge seat. The limit stopper (44) is used to control the opening angle between the upper part (41) and the lower part (42) of the pressing block when rotating with the first pin shaft (28) as the axis.

7. The dual-power permanent magnet leakage protector as claimed in claim 1, It is characterized in that The bottoms of the tripping-maintaining device (5) and the connecting device (6) are both provided with wedge-shaped buckling feet (45), and the tripping-maintaining device (5) and the connecting device (6) are respectively buckled and fixed to the protector bottom plate (2) via the buckling feet (45).

8. The dual-power permanent magnet leakage protector as claimed in claim 1, It is characterized in that The connecting device (6) further comprises a connecting coil (24) and a connecting spring (25); the connecting coil (24) is fixed inside the connecting device (6); and the connecting spring (25) and the connecting iron core (23) are horizontally arranged in the inner cavity of the connecting coil (24).

9. The dual-power permanent magnet leakage protector as claimed in claim 6, It is characterized in that The hinge seat is provided with a pre-articulation device, which includes a boss (46) and a clamping groove (47). The boss (46) is located at the hinge of the upper part (41) of the pressing block, and the clamping groove (47) is located at the hinge of the lower part (42) of the pressing block. The pre-articulation of the upper part (41) of the pressing block and the lower part (42) of the pressing block is achieved through the cooperation of the boss (46) and the clamping groove (47).

10. The dual-power permanent magnet leakage protector according to claim 6, It is characterized in that The hinge seat is provided with a pre-articulation device, which includes a boss (46) and a clamping groove (47). The clamping groove (47) is located at the hinge of the upper part (41) of the pressing block, and the boss (46) is located at the hinge of the lower part (42) of the pressing block. The pre-articulation of the upper part (41) of the pressing block and the lower part (42) of the pressing block is achieved through the cooperation of the boss (46) and the clamping groove (47).

11. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The locking lever (27) is also provided with a pressing top block (48), and the pressing top block (48) is located on one side of the lock buckle (33). When the power is turned on, the connecting iron core (23) drives the spring sheet pressing block (26) to rotate through the vertical fork groove (37), and the buckle (36) slides upward along the buckle slideway (35). After the buckle (36) slides through the lock buckle (33), it abuts against the pressing top block (48) instantaneously, and the magnetic attraction plate (34) moves downward by abutting against the pressing top block (48), so that it is adsorbed and fixed by the permanent magnet core (21).

12. The dual-power permanent magnet leakage protector as claimed in claim 5, It is characterized in that The upper part (41) and the lower part (42) of the pressing block are both provided with spring grooves at positions corresponding to the positions where the pressing block spring (43) is provided. A spring column is also provided in the spring groove. The spring groove and the spring column are used to install the pressing block spring (43).

13. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The synchronous pressing block (8) is also provided with an indicator block (32), the indicator block (32) is located at the upper part of the synchronous pressing block (8), and the indicator block (32) is red in color.

14. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The locking lever (27) is also provided with a limit baffle (49), which is arranged at the end of the locking lever (27) and located on the upper part of the connecting device (6). When the power is disconnected, the limit baffle (49) abuts against the upper part of the connecting device (6) to limit the rotation angle of the locking lever (27).

15. The dual-power permanent magnet leakage protector as claimed in claim 2, It is characterized in that A protrusion (50) is provided on the synchronous pressure rod (39) at a position corresponding to the PE line spring piece (14); when the synchronous pressure rod (39) is pressed down, the protrusion (50) causes the PE line spring piece (14) to be connected to the corresponding plug pin (3) before the first spring piece (11), the second spring piece (12), and the third spring piece (13); when the side pressure rod (38) is lifted, the protrusion (50) causes the PE line spring piece (14) to be disconnected from the corresponding plug pin (3) after the first spring piece (11), the second spring piece (12), and the third spring piece (13).

16. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The locking lever (27) is also provided with a pressure plate pin hole (51), and the magnetic attraction plate (34) is hingedly connected with the pressure plate pin hole (51) via a pin shaft.

17. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The shaft sleeve rotation driving block (52) and the shaft sleeve rotation abutment block (53) are both open shaft sleeves.

18. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The spring clip (4) comprises a first spring clip (11), a second spring clip (12), a third spring clip (13) and a PE line spring clip (14); the first spring clip (11), the second spring clip (12), the third spring clip (13) and the PE line spring clip (14) pass 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 wiring terminal is configured 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 to the first pin (16); the first pin (16) is connected to the neutral line; and the second pin (15) is connected to the live line. The second plug pin (15), the first plug pin (16), the ground wire plug pin (17) and the auxiliary connecting pin (20) are provided with electrical connection contacts (18) at the top, and the first spring sheet (11), the second spring sheet (12), the third spring sheet (13) and the PE wire spring sheet (14) are provided with spring sheet contacts (19) corresponding to the electrical connection contacts (18) at the ends. A pressure rod (38) on one side is used to press down the first spring sheet (11) to connect with the first plug pin (16), and a pressure rod (38) on the other side is used to press down the third spring sheet (13) to connect with the auxiliary connecting pin (20). The synchronous pressure rod (39) is used to press down the second spring sheet (12) to connect with the second plug pin (15), and simultaneously press down the PE wire spring sheet (14) to connect with the ground wire plug pin (17).

19. The dual-power permanent magnet leakage protector according to claim 1, It is characterized in that The spring sheet (4) comprises a first spring sheet (11), a second spring sheet (12) and a third spring sheet (13), the first spring sheet (11), the second spring sheet (12) and the third spring sheet (13) pass 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 wiring terminal is configured 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 to the first pin (16), the first pin (16) is connected to the neutral line, and the second pin (15) is connected to the live line; The second plug pin (15), the first plug pin (16) and the auxiliary connecting pin (20) are provided with electrical connection contacts (18) at their tops; the first spring sheet (11), the second spring sheet (12) and the third spring sheet (13) are provided with spring sheet contacts (19) corresponding to the electrical connection contacts (18) at their ends; a pressure rod (38) on one side is used to press down the first spring sheet (11) to connect with the first plug pin (16); a pressure rod (38) on the other side is used to press down the third spring sheet (13) to connect with the auxiliary connecting pin (20); the synchronous pressure rod (39) is used to press down the second spring sheet (12) to connect with the second plug pin (15); and the PE wire and the ground wire plug pin (17) cannot be disconnected and remain connected.

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