Leakage protection device and electric appliance

Abstract

The utility model provides a leakage protection device which comprises an input end and an output end. The current-carrying line is used for transmitting the current on the power supply line to load equipment; a protection unit comprising: a switching module configured to control a power connection between the input terminal and the output terminal; the electric leakage detection module is configured to generate an electric leakage fault signal when a leakage current signal on the current-carrying line is detected; the driving module is configured to drive the switch module to switch on the power connection when the electric leakage protection device works normally, and drive the switch module to switch off the power connection in response to the electric leakage fault signal; a first housing for accommodating at least part of the protection unit; an independent operation unit disposed outside the first housing and independently movable with respect to the first housing; and a signal line for transmitting an electrical signal between the protection unit and the independent operation unit. According to the utility model, the device is provided with the independent operation unit, which is convenient for a user to find warning and is easy for the user to carry out required operation on the device.

Description

Technical Field

[0001] The utility model relates to the electrical field, in particular to a leakage protection device and an electrical appliance. Background Art

[0002] With the development of leakage protection technology and the improvement of people's safety awareness, more and more household appliances are equipped with leakage protection devices. At present, most households use embedded installation for household appliances. However, the existing leakage protection devices are usually set at one end of the plug, which makes it difficult to indicate the switch status or be operated by the user for regular testing. Utility Model Content

[0003] Based on the above problems, the first aspect of the utility model proposes a leakage protection device, comprising: an input end, which is coupled to a power supply line; an output end, which is coupled to a load device; a current-carrying line, which is coupled between the input end and the output end and is used to transmit the current on the power supply line to the load device; a protection unit, comprising: a switch module, which is coupled between the input end and the output end and is configured to control the power connection between the input end and the output end; a leakage detection module, which is configured to generate a leakage fault signal when a leakage current signal on the current-carrying line is detected; a driving module, which is coupled to the switch module and the leakage detection module, and is configured to be able to drive the switch module to connect or disconnect the power connection, wherein the driving module drives the switch module in response to the leakage fault signal. a switch module that disconnects the power connection; a first shell that is used to accommodate at least part of the protection unit; an independent operating unit that is arranged outside the first shell and can move independently relative to the first shell, and the independent operating unit includes at least one of the following modules: a first warning module that is configured to send a first warning signal in response to the leakage fault signal; a first reset module that is coupled to the drive module and is configured to enable the drive module to drive the switch module to reconnect the power connection under a first reset operation; a first test module that is coupled to the leakage detection module and is configured to test whether the leakage protection device is working normally; a signal line that is coupled between the protection unit and the independent operating unit and is used to transmit electrical signals between the protection unit and the independent operating unit.

[0004] In some embodiments, the protection unit also includes: a second warning module, which is configured to issue a second warning signal in response to the leakage fault signal; a second reset module, which is coupled to the driving module and is configured to control the driving module to drive the switch module to reconnect the power connection under a second reset operation; a second test module, which is coupled to the leakage detection module and is configured to test whether the leakage protection device is working normally.

[0005] In some embodiments, the current-carrying line and the signal line are two independent cables.

[0006] In some embodiments, the flow line and the signal line are an integrated multi-core cable.

[0007] In some embodiments, the leakage protection device further includes a second housing, which is used to accommodate at least part of the independent operating unit and is attached to the load device.

[0008] In some embodiments, the first warning module includes an indicator light, a speaker and / or a buzzer.

[0009] In some embodiments, the indicator light, speaker and / or buzzer are disposed on the housing of the load device.

[0010] In some embodiments, the first warning module includes an indicator light coupled to the current-carrying line, and when the switch module connects the power connection, the indicator light emits a bright light; when the switch module disconnects the power connection, the indicator light goes out.

[0011] In some embodiments, the first test module includes a first test switch, and is configured to generate the simulated leakage current signal when the first test switch is operated, thereby detecting whether the leakage protection device operates normally.

[0012] In some embodiments, the first test switch is disposed on a housing of the load device.

[0013] In some embodiments, the first reset module includes a first reset switch, and is configured to cause the driving module to drive the switch module to reconnect the power connection when the first reset switch is operated.

[0014] In some embodiments, the first reset switch is disposed on a housing of the load device.

[0015] In some embodiments, the drive module includes at least one electromagnetic coil.

[0016] A second aspect of the present invention provides an electrical appliance, comprising: a load device; and a leakage protection device according to any one of the embodiments of the first aspect.

[0017] The utility model provides an independent operating unit with an operating element or an indicator in the leakage protection device, so that the independent operating unit can be further arranged on the housing of a load device (such as a household appliance), thereby solving the problems that the status indication is not easy to be found and the user is inconvenient to operate. Therefore, the user experience is improved, potential safety hazards are eliminated, and the safety of the ground fault protection device is further increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The embodiments are shown and explained with reference to the accompanying drawings. These drawings are used to illustrate the basic principles, and only the aspects necessary for understanding the basic principles are shown. These drawings are not to scale. In the drawings, the same reference numerals represent similar features. In addition, the connection between each box in the architecture diagram indicates that the two boxes are electrically coupled, and the absence of a connection between the two boxes does not mean that the two boxes are not coupled.

[0019] Figure 1 A schematic structural diagram showing a leakage protection device connected to a load device according to an embodiment of the utility model is shown;

[0020] Figure 2 Another schematic structural diagram showing a leakage protection device connected to a load device according to an embodiment of the utility model;

[0021] Figure 3 A circuit diagram of a first embodiment of a leakage protection device according to an embodiment of the utility model is shown;

[0022] Figure 4 A circuit schematic diagram of a second embodiment of a leakage protection device according to an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0023] In the following specific description of the preferred embodiments, reference will be made to the attached drawings that constitute a part of the present invention. The attached drawings show, by way of example, specific embodiments that can implement the present invention. The illustrative embodiments are not intended to be exhaustive of all embodiments according to the present invention. It will be appreciated that other embodiments may be utilized, and structural or logical modifications may be made without departing from the scope of the present invention. Therefore, the following specific description is not restrictive, and the scope of the present invention is defined by the attached claims.

[0024] Before introducing the embodiments of the present invention, some terms involved in the present invention are first explained to facilitate a better understanding of the present invention.

[0025] The terms "connection" or "coupling" and similar terms used in the present invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "A", "a group" or "an" and similar terms do not indicate a quantity limitation, but indicate the presence of at least one.

[0026] The terms "include", "comprising" and similar terms used in the present invention should be understood as open terms, that is, "include / include but not limited to", indicating that other contents may also be included. The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment" and so on. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless there is a contradiction.

[0027] The utility model aims to provide a leakage protection device. In the leakage protection device, an independent operating unit with an operating member or an indicating member is provided, so that the independent operating unit can be further provided on the housing of a load device (such as a household appliance), thereby solving the problems that the status indication is not easy to be found and the user is inconvenient to operate, thereby improving the user experience, eliminating potential safety hazards, and further increasing the safety of the ground fault protection device.

[0028] Figure 1 A schematic structural diagram showing a leakage protection device connected to a load device according to an embodiment of the utility model is shown.

[0029] like Figure 1 As shown in FIG. 1 , the leakage protection device 100 includes an input terminal 10, an output terminal 20, a current-carrying line 30, a protection unit 40, a first housing 50, an independent operation unit 60, and a signal line 70. The input terminal 10 may be, for example, a metal plug, one end of which passes through the first housing 50 and is coupled to the protection unit 40, and the other end of which is coupled to the power supply line ( Figure 1). The output end 20 may be, for example, one end of a current-carrying line 30, or a component connected to one end of the current-carrying line 30, which is coupled to the load device 200, thereby coupling the protection unit 40 to the load device 200. The current-carrying line 30 is coupled between the input end 10 and the output end 20, and is used to transmit the current on the power supply line to the load device 200. The current-carrying line 30 may include two current-carrying lines for connecting to the live line of the power grid and for connecting to the neutral line of the power grid, respectively. The signal line 70 is coupled between the protection unit 40 and the independent operation unit 60, and is used to transmit electrical signals between the protection unit 40 and the independent operation unit 60. The current-carrying line 30 and the signal line 70 are two independent cables. The independent operation unit 60 is arranged outside the first housing 50 and can move independently relative to the first housing 50. The independent operation unit 60 is coupled to the protection unit 40 via the signal line 70.

[0030] exist Figure 1 In the embodiment of the present invention, the protection unit 40 includes a switch module 401, a leakage detection module 402 and a driving module 403 and is contained in the first housing 50. A portion of the current-carrying line 30 is contained in the first housing 50 and passes through the first housing 50, thereby extending to the outside of the first housing 50. In other embodiments, the first housing 50 may also contain only part of the modules of the protection unit 40.

[0031] exist Figure 1 In the embodiment of the present invention, the switch module 401 is coupled between the input terminal 10 and the output terminal 20, and is used to control the power connection between the input terminal and the output terminal. The leakage detection module 402 is used to detect the leakage current signal on the current-carrying line 30, and generate a leakage fault signal when the leakage current signal on the current-carrying line 30 is detected. The driving module 403 is coupled to the switch module 401 and the leakage detection module 402, and drives the switch module 401 to connect the power connection when the leakage protection device 100 is powered on or reset, and drives the switch module 401 to disconnect the power connection in response to the leakage fault signal.

[0032] exist Figure 1 In the embodiment of the present invention, the independent operation unit 60 includes a first warning module 601, a first reset module 602 and a first test module 603. The first warning module 601 sends a first warning signal in response to a leakage fault signal. The first reset module 602 is coupled to the driving module 402, and under the first reset operation, the driving module 403 drives the switch module 401 to reconnect the power connection. The first test module 603 is coupled to the leakage detection module 402 and is used to test whether the leakage protection device 100 is working normally.

[0033] It should be noted that although Figure 1It is shown that the current-carrying line 30 and the signal line 70 each include two wires, but those skilled in the art will understand that this is only for the purpose of illustration, and does not mean that the current-carrying line 30 and the signal line 70 can only include two wires. They can include more or less wires according to actual needs. In addition, according to the specific circuit design, one or more modules of the independent operation unit 60 can also be directly coupled to the current-carrying line 30. For example, the first warning module 601 is coupled to the end of the current-carrying line 30 close to the load device 200.

[0034] exist Figure 1 In the embodiment of the present invention, the first warning module 601 includes an indicator light, a speaker and / or a buzzer 6011, the first reset module 602 includes a first reset switch 6021, and the first test module 603 includes a first test switch 6031. When the leakage detection module 402 detects a leakage current signal on the current-carrying line 30, the indicator light, the speaker and / or the buzzer 6011 sends a first warning signal. When the first reset switch 6021 is operated (i.e., the first reset operation), the first reset module 602 enables the driving module 403 to drive the switch module 401 to reconnect the power connection. When the first test switch 6031 is operated (i.e., the first test operation), the first test module 603 generates a simulated leakage current signal, thereby detecting whether the leakage protection device 100 is working normally, that is, whether its leakage protection function is intact. When the independent operating unit 60 is installed on the load device 200, the first warning module 601, the first reset module 602 and the first test module 603 can be installed at preset positions of the load device 200 respectively, so that the indicator light, the speaker and / or the buzzer 6011, the first reset switch 6021 and the first test switch 6031 are set on the shell surface (such as the panel) of the load device 200.

[0035] In some embodiments, the leakage protection device 100 may include a second housing for accommodating at least part of the independent operation unit 60 and attaching it to the load device 200. That is, the first warning module 601, the first reset module 602 and / or the first test module 603 may be accommodated in the second housing, and when the independent operation unit 60 is installed on the load device 200, the second housing is installed as a whole at a preset position of the load device 200, so that the indicator light, the speaker and / or the buzzer 6011, the first reset switch 6021 and / or the first test switch 6031 are arranged on the housing surface (such as a panel) of the load device 200, so as to conveniently indicate the state of the leakage protection device 400 to the user and facilitate the user to perform reset and / or test operations.

[0036] Figure 2 Another schematic structural diagram showing the connection between the leakage protection device and the load equipment according to the embodiment of the utility model is shown.

[0037] and Figure 1 Compared with the embodiment of Figure 2 In the embodiment, the current-carrying wire 30 and the signal wire 70 are an integrated multi-core cable. In addition, the protection unit 40 of the leakage protection device 300 further includes a second warning module, a second reset module and a second test module ( Figure 2 400). The second warning module sends a second warning signal in response to the leakage fault signal. The second reset module is coupled to the driving module 403, and controls the driving module 403 to drive the switch module 401 to reconnect the power connection under the second reset operation. The second test module is coupled to the leakage detection module 403, and is used to test whether the leakage protection device 100 is working properly. By setting a second warning module, a second reset module and / or a second test module in the protection unit 50, the state and / or alignment of the leakage protection device 100 can also be indicated on the plug side for reset and testing, which is suitable for more usage scenarios and further increases the convenience of users.

[0038] Figure 3 A circuit schematic diagram of a first embodiment of a leakage protection device according to an embodiment of the utility model is shown.

[0039] like Figure 3 As shown, the leakage protection device 300 is coupled between the input terminal LINE and the load device LOAD, and includes an input terminal ( Figure 3 ), coupled to the output terminal of the load device ( Figure 3 The current-carrying line 30 is close to one end of the load device), the current-carrying line 30 coupled between the input end and the output end, the protection unit 40, the first housing ( Figure 3 ), an independent operation unit 60 and a signal line 70. The current-carrying line 30 includes a live line L and a neutral line N, and is used to transmit the current on the power supply line to the load device. The independent operation unit 60 can be installed to the load device LOAD.

[0040] The protection unit 40 includes a switch module 401, a leakage detection module 402 and a drive module 403. The switch module 301 is coupled between the input end and the output end, and is used to control the power connection between the input end and the output end. The leakage detection module 402 includes a zero-sequence current transformer ZCT1, a leakage detection chip U1 and its peripheral circuits. Two current-carrying lines 30 pass through the zero-sequence current transformer ZCT1. The drive module 403 includes an electromagnetic coil (in this embodiment, a relay RELAY), a full-bridge rectifier DB1, two thyristors Q2 and Q3, a capacitor C6 and some peripheral components. Specifically, after the relay RELAY is connected in series with the resistors R14 and R15, it is connected in parallel with the capacitor C6. One end of the resistor R14 and R15 connected in series is connected to the control electrode of the thyristor Q3. The relay RELAY is also connected in series with the resistor R10 and the thyristor Q2. The two ends of capacitor C7 are connected to the control electrode and cathode of thyristor Q2 respectively, one end of resistor R11 is connected to pin 2 of leakage detection chip U1, and the other end is connected in series with capacitor C7 and connected to the control electrode of thyristor Q2. At least part of capacitor protection unit 40 is accommodated in the first housing of leakage protection device 300.

[0041] The independent operation unit 60 includes a first warning module 601, a first reset module 602 and a first test module 603. The first warning module 601 includes an LED indicator 6011, whose anode is connected to the current-carrying line N via a resistor R2, and whose cathode is connected to the current-carrying line L via a resistor R1. The first reset module 602 includes a first reset switch RESET 6021, one end of which is connected to the relay RELAY of the driving module 403, and the other end is connected to the full-bridge rectifier DB1. The first test module 603 includes a first test switch TEST 6031, one end of which is connected to the cathode of the LED indicator 6011, and the other end is connected to the current-carrying line N. The LED indicator 6011, the first reset switch RESET 6021 and the first test switch TEST 6031 can be set on the housing surface (such as a panel) of the load device LOAD, so as to conveniently indicate the state of the leakage protection device 400 to the user and facilitate the user to perform reset and / or test operations.

[0042] In the normal working state of the leakage protection device 300, the current-carrying line N charges the capacitor C6 through R3-C3-DB1, and the voltage across the capacitor C6 rises. The capacitor C6 is connected in parallel with the relay RELAY, the resistors R14 and R15, so the voltage across its two ends is divided by the relay RELAY, R14 and R15. When the voltage across the capacitor C6 reaches the set threshold, the current triggers the thyristor Q3 to turn on through the relay RELAY-R14. The current forms a loop through the current-carrying line N-R3-C3-DB1-RELAY-Q3-DB1-current-carrying line L. At this time, a large current flows through the relay RELAY, generating a large electromagnetic force, driving the two switches of the switch module 401 to close, connecting the power connection between the input end and the output end, and the LED indicator 6011 emits a bright light.

[0043] When there is leakage current on the current-carrying line 30, the zero-sequence current transformer ZCT1 collects the leakage current signal, the secondary end generates a corresponding induction signal, and transmits the induction signal to the leakage detection chip U1 for processing. If the value of the leakage current after processing is greater than the set threshold, the pin 2 of the leakage detection chip U1 outputs a high level (leakage fault signal), otherwise it outputs a low level. The high level of the pin 2 of the leakage detection chip U1 is provided to the control electrode of the thyristor Q2 via the resistor R11, triggering the thyristor Q2 to turn on. The current forms a loop through the current-carrying line N-R3-C3-DB1-R10-Q2-DB1-current-carrying line L. At this time, a large part of the current flows through the resistor R10 and the thyristor Q2. The current flowing through the relay RELAY decreases, the thyristor Q3 is cut off, and the electromagnetic force of the relay RELAY decreases, causing the two switches of the switch module 401 to disconnect the power connection between the input end and the output end. Since the power connection between the input terminal and the output terminal is disconnected, the LED indicator light 6011 goes out, indicating to the user that there is a leakage fault.

[0044] After the user eliminates the leakage fault, he can press the first reset switch RESET 6021 located on the housing of the load device LOAD to reset the leakage protection device 300. The current forms a loop through the current-carrying line N-R3-C3-DB1-RESET-DB1-current-carrying line L. Almost all the current flows through the first reset switch RESET 6021. The current flowing through the resistor R10 and the thyristor Q2 decreases sharply, and the thyristor Q2 is cut off. After releasing the first reset switch RESET 6021, the current-carrying line N charges the capacitor C6 again through R3-C3-DB1, and the voltage across the capacitor C6 rises again. When the voltage across the capacitor C6 reaches the set threshold, the current triggers the thyristor Q3 to turn on again through the relay RELAY-R14. The current forms a loop through the current-carrying line N-R3-C3-DB1-RELAY-Q3-DB1-current-carrying line L. At this time, a relatively large current flows through the relay RELAY again, generating a relatively large electromagnetic force, driving the two switches of the switch module 401 to close, reconnecting the power connection between the input end and the output end, and the LED indicator 6011 lights up again.

[0045] The leakage protection device 300 also has a test function. When the user presses the first test switch TEST 6031 located on the housing of the load device LOAD, the current forms a loop through the current-carrying line N-TEST-R1-current-carrying line L, and a simulated leakage current is generated on the current-carrying line 30. When the leakage protection function of the leakage protection device 300 is intact, the zero-sequence current transformer ZCT1 collects the leakage current signal, the secondary end generates a corresponding induction signal, and transmits the induction signal to the leakage detection chip U1 for processing. If the value of the processed leakage current is greater than the set threshold, the pin 2 of the leakage detection chip U1 outputs a high level (leakage fault signal), otherwise it outputs a low level. The high level of the pin 2 of the leakage detection chip U1 is provided to the control electrode of the thyristor Q2 via the resistor R11, triggering the thyristor Q2 to turn on. The current forms a loop through the current-carrying line N-R3-C3-DB1-R10-Q2-DB1-current-carrying line L. At this time, a large part of the current flows through the resistor R10 and the thyristor Q2. The current flowing through the relay RELAY decreases, and the electromagnetic force of the relay RELAY decreases, causing the two switches of the switch module 401 to disconnect the power connection between the input end and the output end, and the LED indicator 6011 goes out. That is to say, if the first test switch TEST 6031 is closed and the LED indicator 6011 goes out, it means that the leakage protection function of the leakage protection device 300 is normal. On the contrary, if the switch module 401 does not disconnect the power connection between the input end and the output end, or the LED indicator 6011 is not off, it means that the leakage protection function of the leakage protection device 300 is missing, and the switch module 401, the leakage detection module 402, the drive module 403 and / or the internal circuit may fail. By testing the leakage protection function through the first test module 603, the fault of the leakage protection device 300 can be found, and the user is reminded to replace the device in time.

[0046] Figure 4 A circuit schematic diagram of a second embodiment of the leakage protection device according to the utility model is shown.

[0047] and Figure 3 Compared with the embodiment of Figure 3 In the leakage protection device 300, the first warning module 601 is directly connected to one end of the current-carrying line 30 close to the load device LOAD; Figure 4 In the leakage protection device 400 of the embodiment, the signal line 70 includes two additional wires for connecting the first warning module 601 to the end of the current-carrying line 30 away from the load device LOAD. The leakage protection function, reset function and test function of the leakage protection device 400 of this embodiment are similar to those of Figure 3In addition, in this embodiment, the LED indicator 6011, the first reset switch RESET 6021 and the first test switch TEST 6031 can also be set on the housing surface (such as a panel) of the load device LOAD, so as to conveniently indicate the status of the leakage protection device 400 to the user and facilitate the user to perform reset and / or test operations.

[0048] A second aspect of the present invention provides an electrical appliance, comprising: a load device; and a leakage protection device according to any one of the above embodiments.

[0049] Therefore, although the present invention is described with reference to specific examples, wherein these specific examples are intended to be illustrative only and not limiting of the present invention, it is obvious to those skilled in the art that the disclosed embodiments may be changed, added or deleted without departing from the spirit and scope of protection of the present invention.

Claims

1. A leakage protection device, characterized in that: The leakage protection device comprises: an input terminal coupled to a power supply line; an output terminal coupled to a load device; a current-carrying line coupled between the input terminal and the output terminal and used for transmitting the current on the power supply line to the load device; Protection unit, including: a switch module coupled between the input terminal and the output terminal and configured to control a power connection between the input terminal and the output terminal; A leakage detection module, configured to generate a leakage fault signal when a leakage current signal on the current-carrying line is detected; a driving module coupled to the switch module and the leakage detection module and configured to drive the switch module to connect or disconnect the power connection, wherein the driving module drives the switch module to disconnect the power connection in response to the leakage fault signal; A first housing, which is used to accommodate at least part of the protection unit; An independent operating unit is disposed outside the first housing and is capable of independently moving relative to the first housing, and the independent operating unit includes at least one of the following modules: A first warning module, configured to issue a first warning signal in response to the leakage fault signal; A first reset module, coupled to the driving module and configured to enable the driving module to drive the switch module to reconnect the power connection under a first reset operation; A first testing module, coupled to the leakage detection module and configured to test whether the leakage protection device works normally; The signal line is coupled between the protection unit and the independent operation unit and is used to transmit an electrical signal between the protection unit and the independent operation unit.

2. The leakage protection device according to claim 1, characterized in that: The protection unit also includes: A second warning module, configured to issue a second warning signal in response to the leakage fault signal; A second reset module, coupled to the driving module and configured to control the driving module to drive the switch module to reconnect the power connection under a second reset operation; The second testing module is coupled to the leakage detection module and is configured to test whether the leakage protection device works normally.

3. The leakage protection device according to claim 1 or 2, characterized in that: The current-carrying line and the signal line are two cables independent of each other.

4. The leakage protection device according to claim 1 or 2, characterized in that: The current-carrying wire and the signal wire are an integrated multi-core cable.

5. The leakage protection device according to claim 1 or 2, characterized in that: The leakage protection device also includes: A second housing is used to house at least part of the independent operating unit and is attached to the load device.

6. The leakage protection device according to claim 1 or 2, characterized in that: The first warning module includes an indicator light, a speaker and / or a buzzer.

7. The leakage protection device according to claim 6, characterized in that: The indicator light, the speaker and / or the buzzer are arranged on the housing of the load device.

8. The leakage protection device according to claim 1 or 2, characterized in that: The first warning module includes an indicator light coupled to the current-carrying line. When the switch module connects the power connection, the indicator light emits a bright light; when the switch module disconnects the power connection, the indicator light goes out.

9. The leakage protection device according to claim 1 or 2, characterized in that: The first test module includes a first test switch, and is configured to generate the simulated leakage current signal when the first test switch is operated, thereby detecting whether the leakage protection device operates normally.

10. The leakage protection device according to claim 9, characterized in that: The first test switch is arranged on the housing of the load device.

11. The leakage protection device according to claim 1 or 2, characterized in that: The first reset module includes a first reset switch, and is configured to cause the driving module to drive the switch module to reconnect the power connection when the first reset switch is operated.

12. The leakage protection device according to claim 11, characterized in that: The first reset switch is arranged on the housing of the load device.

13. The leakage protection device according to claim 1 or 2, characterized in that: The driving module includes at least one electromagnetic coil.

14. An electrical appliance, characterized in that: The electrical appliances include: load equipment; and A leakage protection device according to any one of claims 1 to 13.

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