A leakage protector that can be forcibly powered off
By designing a leak protection device including reset buttons, disconnect buttons and electromagnetic drive devices, the problem that existing leakage protectors cannot force power outage in the case of short circuit or disconnection is solved, and a forced power outage function with high reliability and safety is achieved.
Patent Information
- Application Number
- CN202010339844.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-04-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2040-04-26
AI Technical Summary
The existing leakage protectors have complex structures and unstable performance, especially when electronic parts fail in short circuit or electromagnetic coils are broken and open, which poses safety hazards.
A leakage protector including a housing, a pin base, a circuit board and a leakage protection device is designed. The leakage protection device includes a reset button, a disconnect button, a reset stop, a pressing guide block, an electromagnetic drive device and a shrapnel. Through the coordinated work of these components, the function of forced power outage is realized.
This design can ensure that the leakage protector can force power outage when a short circuit failure occurs in electronic parts, the electromagnetic coil is broken, or the mains power supply line fails, improves safety and reliability, and avoids safety hazards caused by the inability to trip and disconnect the connection with the power supply.
Smart Images

Figure CN113555242B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of leakage protectors, and in particular to a leakage protector capable of forced power-off. Background Art
[0002] In modern society, with the continuous progress of technology and society, people's living standards are constantly improving, and smart home appliances are gradually entering people's lives. People have more and more opportunities to come into contact with electricity, and the situation of electric shock casualties caused by malfunctions of electrical equipment occurs from time to time. For the safety of people and the safety of equipment and property, leakage protectors, as an effective electrical safety technology device, have been widely used and play a crucial role. However, the structural design of the tripping mechanism of the existing leakage protectors is unreasonable, so the leakage protectors have defects such as complex structure and unstable performance. For example, when electronic components are short-circuited and fail, the electromagnetic coil is broken or open, or when the mains power supply line that provides the working power supply for the leakage protection device fails, such leakage protection devices cannot trip and disconnect the connection with the power supply. Therefore, in necessary situations, it is necessary to require the leakage protector to ensure tripping and power-off.
[0003] As disclosed in a leakage protector core with forced reset of Chinese utility model patent CN2802712Y, it overcomes the defects and deficiencies of existing products that only have a test button, do not have a forced reset button, and the output terminal is charged after power-on, which does not meet the EU technical requirements and poses a safety hazard to children. It includes a housing, a circuit board, a leakage induction device, a power-off execution device, a pair of input conductive sheets and a pair of output conductive sheets. A forced reset device for closing the input and output conductive sheets is provided in a part of the inner cavity of the housing; the leakage protector of this utility model patent cannot perform forced power-off when electronic components are short-circuited and fail. Summary of the Invention
[0004] In view of the above-mentioned defects existing in the prior art, the present invention particularly provides a leakage protector capable of forced power-off, which solves the problems of complex structure and unstable performance existing in the existing leakage protectors, and also solves the problem that the leakage protection device cannot be forced to trip and disconnect the connection with the power supply in the case of short-circuit failure of electronic components or open circuit of electromagnetic coils.
[0005] To solve the above technical problems, the present invention provides a leakage protector capable of forced power-off, including: a housing, and a pin base, a circuit board, a leakage protection device, and pins provided inside the housing. The leakage protection device includes a reset button, a disconnect button, a reset block, a pressing guide block, an electromagnetic drive device, and a spring sheet; the pins and the spring sheet are embedded in the pin base;
[0006] The pressing and guiding block is snap-connected to one side of the top of the pin base. The pressing and guiding block is provided with a pressing end for pressing and fixing the pin on the pin base. The reset block is movably installed in the middle of the top of the pin base. The reset block is provided with a protruding end that can contact the elastic piece. The contact and separation between the elastic piece and the pin can be controlled through the protruding end. The electromagnetic driving device is arranged on the other side of the top of the pin base. The electromagnetic driving device includes an electromagnetic device, a driving iron core, and a snap piece. The driving iron core is arranged in the electromagnetic device. The driving iron core is movably snap-connected to the snap piece. The electromagnetic device is used to drive the driving iron core to move so as to drive the snap piece to move. The reset block is provided with a snap groove into which the snap piece can be inserted.
[0007] The reset button passes through the circuit board and is inserted into the reset block, and the reset button can be snap-connected to the reset block through the snap piece. Pressing down the reset button can cause the reset block to drive the elastic piece to move downward and separate from the pin, resulting in power-off. When the reset button resets and moves upward under the action of the reset spring, the reset block can drive the elastic piece to move upward and contact the pin, resulting in power-on. The disconnect button is sleeved in the pressing and guiding block. The disconnect button is also provided with a protruding release arm. The release arm corresponds to the snap groove. Pressing down the disconnect button can cause the release arm to push the snap piece inserted into the snap groove, so that the reset button is disengaged from the reset block. Adopting the above technical solution, the leakage protector in this embodiment can be forced to cut off the power, and the reliability is extremely high. It can avoid the situation that the leakage protection device cannot trip and disconnect from the power supply when there is a short circuit failure of electronic components, an open circuit of the electromagnetic coil, or a failure of the mains power supply line that provides the working power for the leakage protection device, playing a role in protecting the safety of personnel and property.
[0008] Wherein, a top-out spring in a compressed state is further arranged between the bottom of the disconnect button and the pressing and guiding block. The top-out spring is used to push the disconnect button upward and abut against the housing, so that the disconnect button can be reset after completing the disconnect action.
[0009] Wherein, a sliding groove is provided at the top of the pin base, and the sliding groove can enable the reset block to be inserted into the pin base from top to bottom for installation. The reset block can move up and down relative to the sliding groove.
[0010] Wherein, the pins include a neutral pin, a live pin, and a ground pin. The elastic pieces include a neutral elastic piece and a live elastic piece. The neutral pin corresponds to the position of the neutral elastic piece, and the live pin corresponds to the position of the live elastic piece. The ground pin is directly connected to the circuit board. There are two protruding ends. The two protruding ends are located on both sides of the reset block and are arranged below the neutral elastic piece and the live elastic piece. The neutral elastic piece and the live elastic piece can automatically move downward under their own elastic forces. This technical solution is applied to a two-pole break leakage protector.
[0011] Among them, the pins include a neutral pin, a live pin and a ground pin, and the elastic pieces include a neutral elastic piece, a live elastic piece and a ground elastic piece. The neutral pin corresponds to the neutral elastic piece in position, the live pin corresponds to the live elastic piece in position, and the ground pin corresponds to the ground elastic piece in position. There are three protruding ends. Two protruding ends are located on both sides of the reset block and are arranged below the neutral elastic piece and the live elastic piece, and both the neutral elastic piece and the live elastic piece can automatically move downward under their own elastic forces. The third protruding end is located at the bottom of the reset block and is arranged on the top of the ground elastic piece to control the downward movement of the ground elastic piece. The ground elastic piece can automatically move upward under its own elastic force. This technical solution is applied to a three-pole leakage protector.
[0012] Among them, the leakage protection device further includes a test button, and the test button is located between the circuit board and the housing; through holes corresponding to and cooperating with the reset button, the disconnect button and the test button are provided on the housing; waterproof gaskets are provided between the reset button, the disconnect button and the test button and the housing; a waterproof gasket is provided between the pin base and the housing, greatly improving the waterproof effect.
[0013] Among them, a wedge-shaped slider is provided at the bottom of the tripping arm. When the leakage protector is in the on state, the snap piece is inserted into the snap groove to lock and fix the reset button and the reset block. The downward movement of the wedge-shaped slider can abut against the snap piece and then push the snap piece to trip. By adopting the above technical solution, the forced tripping action can be made more reliable.
[0014] The present invention provides a leakage protector capable of forced power-off, including: a housing, and a pin base, a circuit board, a leakage protection device, and pins provided inside the housing. The leakage protection device includes a reset button, a disconnect button, a reset block, a pressing guide block, an electromagnetic driving device and a brush wire terminal; the pins and the brush wire terminal are embedded in the pin base;
[0015] The pressing guide block is snap-connected and arranged on one side of the top of the pin base. The pressing guide block is provided with a pressing end for pressing and fixing the pins on the pin base; the reset block is movably installed in the middle of the top of the pin base. The reset block is provided with two protruding ends for fixing the brush wire terminal. The contact and separation between the brush wire terminal and the pins can be controlled through the protruding ends; the electromagnetic driving device is arranged on the other side of the top of the pin base. The electromagnetic driving device includes an electromagnetic device, a driving iron core and a snap piece. The driving iron core is arranged in the electromagnetic device. The driving iron core is movably snap-connected with the snap piece. The electromagnetic device is used to drive the driving iron core to move so as to drive the snap piece to move. The reset block is provided with a snap groove for the snap piece to be inserted into;
[0016] The reset button passes through the circuit board and is inserted into the reset stop block, and the reset button can be clamped with the reset stop block through the snap spring. Pressing down the reset button can make the reset stop block drive the elastic piece to move downward and separate from the pin to cut off the power supply. When the reset button resets and moves upward under the action of the reset spring, the reset stop block can drive the brush wire terminal to move upward and contact the pin to energize;
[0017] The disconnect button is sleeved in the pressing guide block, and the disconnect button is also provided with a protruding release arm. The release arm corresponds to the snap groove. Pressing down the disconnect button can make the release arm push the snap spring inserted into the snap groove, so that the reset button is disengaged from the reset stop block.
[0018] Among them, the brush wire terminal includes a first fixed end and a second fixed end. The first fixed end is fixed on the protruding end, the second fixed end is clamped and fixed on the pin base, and the first fixed end and the second fixed end are connected by a brush wire.
[0019] Among them, the pins include a neutral pin, a live pin and a ground pin. The brush wire terminals include a neutral wire terminal and a live wire terminal. The neutral pin corresponds to the position of the neutral wire terminal, the live pin corresponds to the position of the live wire terminal, and the ground pin is directly connected to the circuit board. Brief Description of the Drawings
[0020] Figure 1 It is an exploded view of Embodiment 1 of a leakage protector with forced power-off according to the present invention;
[0021] Figure 2 It is an exploded view of a partial structure of the leakage protection device of the present invention;
[0022] Figure 3 It is a structural diagram of the pin base of the present invention;
[0023] Figure 4 It is a three-dimensional view of a leakage protector with forced power-off according to the present invention;
[0024] Figure 5 It is an exploded view of Embodiment 2 of a leakage protector with forced power-off according to the present invention;
[0025] Figure 6 It is a structural diagram of the disconnect button of the present invention;
[0026] Figure 7 It is the structure of Embodiment 3 of the present invention Figure 1 ;
[0027] Figure 8 It is the structure of Embodiment 3 of the present invention Figure 2 ;
[0028] In the figure: 1 is the housing; 2 is the pin base; 3 is the circuit board; 4 is the leakage protection device; 5 is the neutral pin; 6 is the live pin; 7 is the ground pin; 8 is the pin; 9 is the shrapnel; 10 is the reset button; 11 is the disconnect button; 12 is the reset stop; 13 is the pressing guide block; 14 is the electromagnetic drive device; 15 is the neutral shrapnel; 16 is the live shrapnel; 17 is the ground shrapnel; 18 is the test button; 19 is the electrical connection contact; 20 is the bayonet; 21 is the reset spring; 22 is the electromagnetic device; 23 is the drive iron core; 24 is the snap piece; 25 is the release arm; 26 is the snap groove; 27 is the ejection spring; 28 is the sliding groove; 29 is the waterproof gasket; 30 is the wedge-shaped slider; 31 is the pressing end; 32 is the extending end; 33 is the brush wire terminal; 34 is the first fixed end; 35 is the second fixed end. Detailed implementation mode
[0029] The following combines the accompanying drawings and embodiments to further describe in detail the specific implementation mode of the present invention. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0030] Embodiment 1:
[0031] A leakage protector capable of forcibly cutting off power according to an embodiment of the present invention, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 shown, includes: a housing 1, and a pin base 2, a circuit board 3, a leakage protection device 4, and a pin 8 arranged inside the housing 1. The leakage protection device 4 includes a reset button 10, a disconnect button 11, a reset stop 12, a pressing guide block 13, an electromagnetic drive device 14, and a shrapnel 9; the pin 8 and the shrapnel 9 are embedded on the pin base 2;
[0032] As Figure 1 and Figure 2As shown, the pressing guide block 13 is snap-connected to one side of the top of the pin base 2. The pressing guide block 13 is positioned and fixed through a snap groove correspondingly arranged on the pin base 2. The pressing guide block 13 is provided with a pressing end 31 for pressing and fixing the pin 8 on the pin base 2. The reset block 12 is movably installed up and down in the middle of the top of the pin base 2. The reset block 12 is provided with an extending end 32 that can contact the elastic piece 9. Through the extending end 32, the contact and separation between the elastic piece 9 and the pin 8 can be controlled. The electromagnetic driving device 14 is arranged on the other side of the top of the pin base 2. The electromagnetic driving device 14 includes an electromagnetic device 22, a driving iron core 23, and a buckle piece 24. The driving iron core 23 is arranged inside the electromagnetic device 22. The driving iron core 23 is horizontally arranged between the reset block 12 and the electromagnetic driving device 14. The driving iron core 23 is connected to the buckle piece 24 in a snap-connecting manner that can move up and down. Specifically, the buckle piece 24 is a metal sheet with U-shaped openings at both ends and is bent. One of the vertical U-shaped openings is snap-connected to the driving iron core 23, and the other horizontal U-shaped opening can be inserted into the buckle groove 26. The electromagnetic device 22 is used to drive the driving iron core 23 to move, thereby driving the buckle piece 24 to move. The reset block 12 is provided with a buckle groove 26 into which the buckle piece 24 can be inserted.
[0033] The reset button 10 passes through the circuit board 3 and is inserted into the reset block 12, and the reset button 10 and the reset block 12 can be snap-connected through the buckle piece 22. Specifically, a bayonet 20 that is snap-connected to the buckle piece 22 is opened at one end of the reset button 10 inserted into the reset block 12. The buckle piece 22 can be inserted into the buckle groove 26 under the action of a spring or the electromagnetic device 22 and is snap-connected to the bayonet 20 on the reset button 10, thereby fixing the reset button 10 and the reset block 12 together to achieve upward buckling. In the upward buckling state, pressing down the reset button 10 can cause the reset block 12 to drive the elastic piece 9 to move downward, or the elastic piece 9 moves downward under its own elastic force, thereby separating from the pin 8 and cutting off the power. When the reset button 10 resets and moves upward under the action of the reset spring 21, the reset block 12 can drive the elastic piece 9 to move upward, so that the elastic piece 9 contacts the pin 8 and is energized. The reset spring 21 is sleeved on the reset button 10, and both ends of the reset spring 21 are respectively abutted against the circuit board 3 and the reset button 10.
[0034] The disconnect button 11 is sleeved inside the pressing guide block 13 and can move up and down inside the pressing guide block 13. A ejecting spring 27 in a compressed state is further provided between the bottom of the disconnect button 11 and the pressing guide block 13. The ejecting spring 27 is used to eject the disconnect button 11 upward and abut against the housing 1. A protruding release arm 25 is further provided on one side of the disconnect button 11. The release arm 25 corresponds to the buckle groove 26. Pressing down the disconnect button 11 can cause the release arm 25 to push the buckle piece 24 inserted into the buckle groove 26, so that the reset button 10 is disengaged from the reset stop block 12. Further, a wedge-shaped slider 30 is provided at the bottom of the release arm 25. When the leakage protector is in the on state, the buckle piece 24 is inserted into the buckle groove 26 to clamp and fix the reset button 10 and the reset stop block 12. During the downward movement of the wedge-shaped slider 30, the inclined surface portion of the wedge-shaped slider 30 always abuts against the buckle piece 24. As the wedge-shaped slider 30 continues to move downward, the wedge-shaped slider 30 will push the buckle piece 24 to move in the horizontal direction and achieve disengagement. Through this technical solution, the leakage protector in this embodiment can be forced to cut off the power, and the reliability is extremely high. It can avoid the situation that when the electronic components fail due to short circuit, the electromagnetic coil is open-circuited, or when the mains power supply line that provides the working power for the leakage protection device fails, the leakage protection device cannot be disengaged to disconnect the connection with the power supply, playing a role in protecting the safety of personnel and property.
[0035] As Figure 2 shown, a sliding groove 28 is provided at the top of the pin base 2, which can enable the reset stop block 12 to be inserted into the pin base 2 from top to bottom for installation. The reset stop block 12 can move up and down relative to the sliding groove 28. The protruding ends 32 on both sides of the reset stop block 12 can be movably clamped up and down in the sliding groove 28.
[0036] As Figure 3 shown, the pin 8 includes a neutral pin 5, a live pin 6 and a ground pin 7. The elastic piece 9 includes a neutral elastic piece 15 and a live elastic piece 16. The neutral pin 5 corresponds to the position of the neutral elastic piece 15, and the live pin 6 corresponds to the position of the live elastic piece 16. The ground pin 7 is directly connected to the circuit board 3. There are two protruding ends 32, which are located on both sides of the reset stop block 12 and are arranged at the lower part of the neutral elastic piece 15 and the live elastic piece 16. The neutral elastic piece 15 and the live elastic piece 16 can automatically move downward under their own elastic force. Corresponding electrical connection contacts 19 are provided on both the pin 8 and the elastic piece 9, which can be used to ensure the stable and reliable electrical connection.
[0037] In the leakage protector of this embodiment, the leakage protection device 4 further includes a test button 18, and the test button 18 is located between the circuit board 3 and the housing 1; through holes corresponding to and cooperating with the reset button 10, the disconnect button 11, and the test button 18 are provided on the housing 1; waterproof gaskets 29 are provided between the reset button 10, the disconnect button 11, the test button 18 and the housing 1; a waterproof gasket 29 is provided between the pin base 2 and the housing 1, greatly improving the waterproof effect.
[0038] Embodiment 2:
[0039] As Figure 5 shown, compared with Embodiment 1, in this embodiment, the pin 8 includes a neutral pin 5, a live pin 6, and a ground pin 7, the elastic piece 9 includes a neutral elastic piece 15, a live elastic piece 16, and a ground elastic piece 17, the neutral pin 5 corresponds to the position of the neutral elastic piece 15, the live pin 6 corresponds to the position of the live elastic piece 16, and the ground pin 7 corresponds to the position of the ground elastic piece 17; there are three protruding ends 32, two protruding ends 32 are located on both sides of the reset block 12 and are arranged below the neutral elastic piece 15 and the live elastic piece 16, and the neutral elastic piece 15 and the live elastic piece 16 can automatically move downward under the action of their own elastic forces; the third protruding end 32 is located at the bottom of the reset block 12 and is arranged on the top of the ground elastic piece 17 to control the downward movement of the ground elastic piece 17, and the ground elastic piece 17 can automatically move upward under the action of its own elastic force. Corresponding electrical connection contacts 19 are provided on both the pin 8 and the elastic piece 9, which can be used to ensure the stable and reliable electrical connection.
[0040] Embodiment 3:
[0041] As Figure 7 and Figure 8 shown, compared with Embodiment 1, in this embodiment, in order to make the leakage protector of this embodiment adaptable to high-power occasions, the elastic piece 9 in Embodiment 1 is replaced with the brush wire terminal 33 in this embodiment. Specifically, the leakage protector that can be forcibly powered off includes: a housing 1, and a pin base 2, a circuit board 3, a leakage protection device 4, and a pin 8 arranged inside the housing 1. The leakage protection device 4 includes a reset button 10, a disconnect button 11, a reset block 12, a pressing guide block 13, an electromagnetic drive device 14, and a brush wire terminal 33; the pin 8 and the brush wire terminal 33 are embedded on the pin base 2;
[0042] The pressing guide block 13 is snap-connected to one side of the top of the pin base 2. The pressing guide block 13 is provided with a pressing end 31 for pressing and fixing the pin 8 on the pin base 2. The reset stop block 12 is movably installed in the middle of the top of the pin base 2. The reset stop block 12 is provided with two protruding ends 32 for fixing the brush wire terminal 33. Through the protruding ends 32, the contact and separation between the brush wire terminal 33 and the pin 8 can be controlled. The electromagnetic driving device 14 is arranged on the other side of the top of the pin base 2. The electromagnetic driving device 14 includes an electromagnetic device 22, a driving iron core 23 and a snap piece 24. The driving iron core 23 is arranged in the electromagnetic device 22. The driving iron core 23 is movably snap-connected with the snap piece 24. The electromagnetic device 22 is used to drive the driving iron core 23 to move so as to drive the snap piece 24 to move. The reset stop block 12 is provided with a snap groove 26 for the snap piece 24 to insert. The reset button 10 passes through the circuit board 3 and is inserted into the reset stop block 12 and can be snap-connected with the reset stop block 12 through the snap piece 22. Pressing down the reset button 10 can make the reset stop block 12 drive the elastic piece 9 to move downward and separate from the pin 8 to cut off the power. The reset button 10 can be reset and move upward under the action of the reset spring 21, which can make the reset stop block 12 drive the brush wire terminal 33 to move upward and contact with the pin 8 to conduct electricity. The disconnect button 11 is sleeved in the pressing guide block 13. The disconnect button 11 is also provided with a protruding release arm 25. The release arm 25 corresponds to the snap groove 26. Pressing down the disconnect button 11 can make the release arm 25 push the snap piece 24 inserted into the snap groove 26, so that the reset button 10 is disengaged from the reset stop block 12. The specific working process is the same as that of Embodiment 1.
[0043] As Figure 7 shown, the brush wire terminal 33 includes a first fixed end 34 and a second fixed end 35. The first fixed end 34 is fixed on the protruding end 32. The second fixed end 35 is snap-connected and fixed on the pin base 2. The first fixed end 34 and the second fixed end 35 are connected by a brush wire. In the figure, the brush wire is not shown. By adopting the design of the brush wire, the leakage protector of this embodiment can be applied to a high-power environment.
[0044] The pin 8 includes a neutral pin 5, a live pin 6 and a ground pin 7. The brush wire terminal 33 includes a neutral wire terminal and a live wire terminal. The neutral pin 5 corresponds to the position of the neutral wire terminal. The live pin 6 corresponds to the position of the live wire terminal. The ground pin 7 is directly connected to the circuit board 3.
[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and retouches can still be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.
Claims
1. A leakage protector capable of forced power-off, characterized in that, The forcibly power-off leakage protector includes: a housing (1), a pin base (2), a circuit board (3), a leakage protection device (4), and pins (8) arranged inside the housing (1). The leakage protection device (4) includes a reset button (10), a disconnect button (11), a reset block (12), a pressing guide block (13), an electromagnetic driving device (14), and a spring piece (9); the pins (8) and the spring piece (9) are embedded in the pin base (2). The pressing guide block (13) is snap-fitted on one side of the top of the pin base (2). The pressing guide block (13) is provided with a pressing end (31) for pressing and fixing the pins (8) on the pin base (2). The reset block (12) is movably installed in the middle of the top of the pin base (2). The reset block (12) is provided with an extending end (32) that can contact the spring piece (9). Through the extending end (32), the contact and separation between the spring piece (9) and the pins (8) can be controlled. The electromagnetic driving device (14) is arranged on the other side of the top of the pin base (2). The electromagnetic driving device (14) includes an electromagnetic device (22), a driving iron core (23), and a snap piece (24). The driving iron core (23) is arranged in the electromagnetic device (22). The driving iron core (23) is movably snap-connected with the snap piece (24). The electromagnetic device (22) is used to drive the driving iron core (23) to move so as to drive the snap piece (24) to move. The reset block (12) is provided with a snap groove (26) into which the snap piece (24) can be inserted. The reset button (10) passes through the circuit board (3) and is inserted into the reset block (12), and the reset button (10) and the reset block (12) can be snap-connected through the snap piece (24). Pressing down the reset button (10) can make the reset block (12) drive the spring piece (9) to move downward and separate from the pins (8) to cut off the power. When the reset button (10) resets and moves upward under the action of the reset spring (21), the reset block (12) can drive the spring piece (9) to move upward and contact the pins (8) to supply power. The disconnect button (11) is sleeved in the pressing guide block (13). The disconnect button (11) is further provided with an extending release arm (25). The release arm (25) corresponds to the snap groove (26). Pressing down the disconnect button (11) can make the release arm (25) push the snap piece (24) inserted into the snap groove (26), so that the reset button (10) and the reset block (12) are disengaged. A compression state ejection spring (27) is further arranged between the bottom of the disconnect button (11) and the pressing guide block (13). The ejection spring (27) is used to push the disconnect button (11) upward and abut against the housing (1).
2. The leakage protector capable of forced power-off according to claim 1, characterized in that, The top of the pin base (2) is provided with a sliding groove (28) that allows the reset block (12) to be inserted into the pin base (2) from top to bottom. The reset block (12) can move up and down relative to the sliding groove (28).
3. The leakage protector capable of forced power-off according to claim 1, wherein The pin (8) includes a neutral pin (5), a live pin (6) and a ground pin (7). The elastic piece (9) includes a neutral elastic piece (15) and a live elastic piece (16). The neutral pin (5) corresponds to the neutral elastic piece (15) in position. The live pin (6) corresponds to the live elastic piece (16) in position. The ground pin (7) is directly connected to the circuit board (3). There are two extension ends (32). The two extension ends (32) are located on both sides of the reset stop block (12) and are arranged below the neutral elastic piece (15) and the live elastic piece (16). The neutral elastic piece (15) and the live elastic piece (16) can automatically displace downward under the action of their own elastic forces.
4. The leakage protector capable of forced power-off according to claim 1, characterized in that, The pin (8) includes a neutral pin (5), a live pin (6) and a ground pin (7). The elastic piece (9) includes a neutral elastic piece (15), a live elastic piece (16) and a ground elastic piece (17). The neutral pin (5) corresponds to the neutral elastic piece (15) in position. The live pin (6) corresponds to the live elastic piece (16) in position. The ground pin (7) corresponds to the ground elastic piece (17) in position. There are three extension ends (32). Two of the extension ends (32) are located on both sides of the reset stop block (12) and are arranged below the neutral elastic piece (15) and the live elastic piece (16). The neutral elastic piece (15) and the live elastic piece (16) can automatically displace downward under the action of their own elastic forces. The third extension end (32) is located at the bottom of the reset stop block (12) and is arranged at the top of the ground elastic piece (17) to control the downward displacement of the ground elastic piece (17). The ground elastic piece (17) can automatically displace upward under the action of its own elastic force.
5. The leakage protector capable of forced power-off according to claim 1, characterized in that, The leakage protection device (4) further includes a test button (18). The test button (18) is located between the circuit board (3) and the housing (1).
6. The leakage protector capable of forced power-off according to claim 5, characterized in that, The housing (1) is provided with through holes corresponding to and cooperating with the reset button (10), the disconnect button (11) and the test button (18).
7. The leakage protector capable of forced power-off according to claim 6, characterized in that, A waterproof gasket is provided between the reset button (10), the disconnect button (11) and the test button (18) and the housing (1).
8. The leakage protector capable of forced power-off according to claim 1, characterized in that, A waterproof gasket is provided between the pin base (2) and the housing (1).
9. The leakage protector capable of forced power-off according to claim 1, characterized in that, A wedge-shaped slider (30) is provided at the bottom of the tripping arm (25). When the leakage protector is in the on state, the buckle piece (24) is inserted into the buckle groove (26) to clamp and fix the reset button (10) and the reset stop block (12). The downward movement of the wedge-shaped slider (30) can abut against the buckle piece (24) and then push the buckle piece (24) to release the buckle.
10. A leakage protector capable of forced power-off, characterized in that, The forcibly power-off leakage protector includes: a housing (1), a pin base (2), a circuit board (3), a leakage protection device (4), and pins (8) disposed inside the housing (1). The leakage protection device (4) includes a reset button (10), a disconnection button (11), a reset block (12), a pressing guide block (13), an electromagnetic driving device (14), and a brush wire terminal (33); the pins (8) and the brush wire terminal (33) are embedded in the pin base (2); The pressing guide block (13) is snap-fitted on one side of the top of the pin base (2). The pressing guide block (13) is provided with a pressing end (31) for pressing and fixing the pins (8) on the pin base (2). The reset block (12) is movably installed in the middle of the top of the pin base (2). The reset block (12) is provided with two protruding ends (32) for fixing the brush wire terminal (33). The contact and separation between the brush wire terminal (33) and the pins (8) can be controlled through the protruding ends (32). The electromagnetic driving device (14) is disposed on the other side of the top of the pin base (2). The electromagnetic driving device (14) includes an electromagnetic device (22), a driving iron core (23), and a snap piece (24). The driving iron core (23) is disposed in the electromagnetic device (22). The driving iron core (23) is movably snap-connected to the snap piece (24). The electromagnetic device (22) is used to drive the driving iron core (23) to move so as to drive the snap piece (24) to move. The reset block (12) is provided with a snap groove (26) for the snap piece (24) to insert; The reset button (10) passes through the circuit board (3) and is inserted into the reset block (12), and the reset button (10) can be snap-connected to the reset block (12) through the snap piece (24). Pressing down the reset button (10) can cause the reset block (12) to drive the elastic piece (9) to move downward and separate from the pins (8) to cut off the power. The reset button (10) resets and moves upward under the action of the reset spring (21), which can cause the reset block (12) to drive the brush wire terminal (33) to move upward and contact the pins (8) to energize; The disconnection button (11) is sleeved in the pressing guide block (13). The disconnection button (11) is further provided with a protruding release arm (25). The release arm (25) corresponds to the snap groove (26). Pressing down the disconnection button (11) can cause the release arm (25) to push the snap piece (24) inserted into the snap groove (26), so that the reset button (10) is disengaged from the reset block (12).
11. A leakage protector capable of forced power-off according to claim 10, characterized in that, The brush wire terminal (33) includes a first fixed end (34) and a second fixed end (35). The first fixed end (34) is fixed on the protruding end (32). The second fixed end (35) is snap-fitted and fixed on the pin base (2). The first fixed end (34) and the second fixed end (35) are connected by a brush wire.
12. The leakage protector capable of forced power-off according to claim 10, characterized in that, The pin (8) includes a neutral pin (5), a live pin (6) and a ground pin (7). The brush wire terminal (33) includes a neutral terminal and a live terminal. The neutral pin (5) corresponds to the position of the neutral terminal, the live pin (6) corresponds to the position of the live terminal, and the ground pin (7) is directly connected to the circuit board (3).
Citation Information
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Forced reset earth leakage protective device core
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