Leakage protection device with fault display function

Abstract

The present disclosure provides a leakage protection device with a fault display function, comprising a housing and a core assembly disposed within the housing, the core assembly comprising a control circuit board, an input terminal assembly and an output terminal assembly coupled to the control circuit board, as well as a reset assembly and a trip assembly; the core assembly comprising an auxiliary switch coupled to the control circuit board and driven by the trip assembly to separate from or contact the input terminal assembly to be in an off state or an on state; the core assembly comprising a status indicator coupled to the control circuit board and providing a first indication in response to an off state, or providing a second indication in response to an on state. While ensuring the reliability of the leakage protection device, the present disclosure utilizes a reasonable structural design and layout to achieve a fault display function in a relatively small space. The product can provide instructions or warnings to the user based on the working state and fault state, thereby improving safety in use.

Description

Technical Field

[0001] The present disclosure generally relates to the field of leakage protection devices, and in particular to a leakage protection device with a fault display function. Background Art

[0002] With technological advancements and heightened safety awareness, leakage protection devices are finding increasingly widespread application. Existing leakage protection devices often lack status indicators or only provide indicators to indicate normal operation. This prevents users from intuitively identifying leakage faults in power lines, creating significant inconvenience.

[0003] As people's requirements for the reliability and functionality of leakage protection devices continue to increase, the market currently needs a product that can provide intuitive visual functions for working status and fault status. Summary of the Invention

[0004] Based on the above needs, the present disclosure proposes a leakage protection device with a fault display function, which provides different status indications based on the working status and fault status, facilitates user use, and improves user experience comfort and safety.

[0005] To this end, according to the present disclosure, there is provided a leakage protection device with a fault display function, comprising a shell and a core assembly arranged in the shell, the core assembly comprising a control circuit board, an input terminal assembly and an output terminal assembly coupled to the control circuit board, and a reset assembly and a trip assembly; wherein the core assembly comprises an auxiliary switch, the auxiliary switch is coupled to the control circuit board and is driven by the trip assembly to be separated from or in contact with the input terminal assembly to be in an off state or a on state; and the core assembly comprises a status indicator, the status indicator is coupled to the control circuit board and provides a first indication in response to the off state, or provides a second indication in response to the on state.

[0006] According to the above technical concept, the present disclosure may further include any one or more of the following optional forms.

[0007] In some optional forms, the trip assembly includes a tripper, which is arranged below the auxiliary switch and has a push rod, and the push rod applies a lifting force to the auxiliary switch to put the auxiliary switch in the disconnected state, or releases the lifting force to put the auxiliary switch in the connected state.

[0008] In some optional forms, the auxiliary switch is constructed as an elastic sheet, one end of which is coupled to the control circuit board, and the other end of which is an elastic arm to be separated from or in contact with the input terminal assembly.

[0009] In some optional forms, the input terminal assembly is a live wire input terminal assembly or a neutral wire input terminal assembly, and the live wire input terminal assembly or the neutral wire input terminal assembly is provided with a contact arm that cooperates with the elastic arm of the auxiliary switch.

[0010] In some optional forms, the status indicator includes a working status indicator light capable of displaying a first color to provide the first indication, and a fault status indicator light capable of displaying a second color to provide the second indication.

[0011] In some optional forms, the reset assembly includes a reset rod and a reset button attached to the reset rod, the reset rod is made of a transparent material and is adjacent to the status indicator, and the reset button is exposed outside the housing and is provided with an indicator hole.

[0012] In some optional forms, the shell includes an upper cover and a base, the movement assembly is arranged on the base, and the shell also includes a first back cover and a second back cover respectively attached to the two ends of the base, and the input terminal assembly and the output terminal assembly are respectively located between the first back cover and the second back cover and the upper cover to form an input terminal and an output terminal.

[0013] In some optional forms, the housing is provided with sealing members at least at the input end and the output end.

[0014] By integrating an auxiliary switch and status indicator into the leakage protection device, the present invention achieves a fault display function in a compact space while ensuring the reliability of the leakage protection device through rational structural design and layout. This product can provide user indications or warnings based on operating status and fault conditions, improving operational safety. Furthermore, the leakage protection device disclosed in the present invention has a simple structure, low cost, easy implementation, and reliable performance, making it widely applicable in a variety of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features and advantages of the present disclosure will be better understood through the following detailed description of the optional embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 Schematic diagram of a leakage protection device according to an embodiment of the present disclosure;

[0017] Figure 2 for Figure 1 Exploded diagram of leakage protection device;

[0018] Figure 3 for Figure 1 A partial schematic diagram of a leakage protection device showing a status indicator of one embodiment;

[0019] Figure 4 for Figure 1 A partial schematic diagram of a leakage protection device showing an auxiliary switch in one embodiment;

[0020] Figure 5 for Figure 2 A schematic diagram of a trip unit in an embodiment of a leakage protection device;

[0021] Figure 6 for Figure 2 A schematic diagram of an input terminal of an embodiment of a leakage protection device, which is suitable for cooperating with an auxiliary switch;

[0022] Figure 7 for Figure 2 A schematic diagram of an auxiliary switch in an embodiment of a leakage protection device;

[0023] Figure 8 It is a cross-sectional schematic diagram of the auxiliary switch in the leakage protection device in the on state;

[0024] Figure 9 It is a cross-sectional schematic diagram showing the auxiliary switch in the leakage protection device in the disconnected state. DETAILED DESCRIPTION

[0025] The following describes the implementation and use of the embodiments in detail. However, it should be understood that the specific embodiments discussed are merely illustrative of specific ways to implement and use the present disclosure and are not intended to limit the scope of the present disclosure. When describing the structural positions of various components, such as up, down, top, and bottom, directional expressions are not absolute but relative. These directional expressions are appropriate when the components are arranged as shown in the figures, but if the positions of the components in the figures are changed, these directional expressions will also change accordingly.

[0026] Herein, the expression “include” or its synonymous similar expressions “comprising”, “containing” and “having” are open-ended and do not exclude additional unrecited elements, steps or components.

[0027] As used herein, unless otherwise specifically defined, terms such as "coupled," "mounted," "connected," and "attached" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of these terms in this document based on the specific circumstances.

[0028] It has been recognized that existing leakage protection devices do not have a status indicator function, or only have an indicator light to show the working status. In other words, under normal working conditions, the indicator light is red or green. When the leakage protection device trips due to a leakage fault in the power line, the indicator light is off. This brings inconvenience to users and increases the risk of electricity use to a certain extent.

[0029] According to the concept of the present disclosure, a leakage protection device with a fault display function is provided, which provides a status indication in normal working state. Once a leakage fault occurs in the power line and causes the product to trip, another status indication, that is, a fault status display, can be provided on the product surface.

[0030] Combine Figure 1 and Figure 2 The leakage protection device includes a housing and a core assembly disposed in the housing. In the embodiment shown, the housing includes an upper cover 1 and a base 2, and the core assembly is disposed on the base 2. The core assembly includes, for example, a control circuit board 9 and an input terminal assembly and an output terminal assembly coupled to the control circuit board 9. The input terminal assembly is specifically Figure 2 The example includes the live wire input terminal 19, the neutral wire input terminal 20, and the ground wire input terminal 21, and the output terminal assembly specifically includes the live wire output terminal 22, the neutral wire output terminal 23, and the ground wire output terminal 24. In the embodiment shown, the housing further includes a first back cover 3a and a second back cover 3b attached to both ends of the base 2, and the input terminal assembly and the output terminal assembly are respectively located between the first back cover 3a and the second back cover 3b and the upper cover 1 to form the input terminal and the output terminal. That is, the input terminal and the output terminal are arranged according to the embodiment. Figure 2 In this way, the leakage protection device of the present invention is advantageously coupled to the power line as needed to meet the leakage protection requirements of different applications.

[0031] The electrical connection between the input and output terminals is achieved, for example, by means of a moving and stationary contact piece. Figure 2 In the embodiment shown, the core assembly includes a magnetic ring assembly 16, and the live wire input terminal 19 contacts or separates with the live wire dynamic contact piece 25 to achieve connection or disconnection, and is connected to the live wire output terminal 22 through the live wire conductive piece 1601 on the magnetic ring assembly 16, thereby completing the connection of the live wire terminal. Similarly, the neutral wire input terminal 20 can also be connected to the neutral wire output terminal 23 through a similar structure. Alternatively, Figure 2In the illustrated embodiment, a neutral input connector 27 is provided. One end of the neutral input connector 27 is soldered to the control circuit board 9. The other end of the neutral input connector 27 engages or disengages with the neutral dynamic contact piece 26 to achieve connection or disconnection. The neutral output terminal 23 is connected via the neutral conductive piece 1602 on the magnetic ring assembly 16, thereby completing the neutral terminal connection. The ground input terminal 21 can optionally be directly connected to the ground output terminal 24 via a ground wire 29.

[0032] According to the present disclosure, the core assembly includes a reset assembly and a trip assembly to switch the input end and the output end between a closed state and an open state. In some embodiments, the leakage protection device further includes a test assembly. Figure 2 In the illustrated embodiment, the reset assembly, for example, includes a reset rod 10, a reset button 6 attached to the reset rod 10, and a reset spring 11. The trip assembly, for example, includes a tripper 12, a trip core 13, a trip spring 14, and a coil support 15. The test assembly, for example, includes a test button 7. Accordingly, the upper cover 1 is provided with a reset button guide hole 101 and a test button guide hole 102, through which the reset button 6 and the test button 7 are exposed and protruded, for easy operation. Thus, by operating the reset button 6, the reset assembly and the trip assembly can coordinate to close the input and output terminals, enabling the leakage protection device to operate normally. When a leakage fault occurs or when the test button 7 is operated, the trip assembly trips to disconnect the input and output terminals, implementing the leakage protection function and effectively preventing electric shock accidents. It should be understood that the reset assembly and the trip assembly that implement the reset and tripping functions of the leakage protection device, as well as the test assembly that implements the testing function, can adopt any suitable form in the art. The illustrations are merely illustrative and will not be described in detail here.

[0033] According to the present disclosure, the movement assembly includes an auxiliary switch 28, which is coupled to the control circuit board 9 and is driven by the trip assembly to separate from or contact the input terminal assembly to be in an off state or an on state. In addition, the movement assembly also includes a status indicator, which is coupled to the control circuit board 9 and provides a first indication in response to the off state, or provides a second indication in response to the on state. In some embodiments, the status indicator includes a working status indicator light 901 capable of displaying a first color (e.g., green) to provide the first indication, and a fault status indicator light 902 capable of displaying a second color (e.g., red) to provide the second indication. In Figure 2 In the illustrated embodiment, the working status indicator light 901 and the fault status indicator light 902 are directly coupled to the control circuit board 9 .

[0034] In some embodiments, the reset rod 10 of the reset assembly is made of a transparent material and is adjacent to the status indicator, wherein the reset rod 10 is made of a transparent material and is adjacent to the status indicator. Figures 1 to 3The reset button 6 is exposed outside the housing and has an indicator hole 601. In the illustrated embodiment, the operating status indicator light 901 and the fault status indicator light 902 are arranged on either side of the reset lever 10, although other suitable arrangements are also possible. During normal operation, the operating status indicator light 901 illuminates, and light of one color is directed through the transparent reset lever 10 to the indicator hole 601 on the reset button 6, indicating that the product is functioning properly. When a fault occurs, the fault status indicator light 902 illuminates, the operating status indicator light 901 goes off, and the transparent reset lever 10 directs light of a different color to the indicator hole 601, providing a warning.

[0035] Combine Figure 2 and Figure 7 In some embodiments, the auxiliary switch 28 is constructed as an elastic sheet, one end 2802 of the elastic sheet is coupled to the control circuit board 9, and the other end is an elastic arm 2801 to separate from or contact the input terminal assembly. Figure 2 and Figure 5 In the embodiment shown, the trip unit 12 is arranged below the auxiliary switch 28 and is provided with a push rod 1201. The push rod 1201 can apply a lifting force to the auxiliary switch 28 (specifically, the elastic arm 2801) to put the auxiliary switch 28 in an off state, or release the lifting force to put the auxiliary switch 28 in an on state.

[0036] Combine Figure 2 and Figure 6 The input terminal assembly for contacting or separating with the elastic arm 2801 of the auxiliary switch 28 can be a live wire input terminal assembly or a neutral wire input terminal assembly. In the embodiment shown, it is the live wire input terminal 19, which is provided with a contact arm 1901 that cooperates with the elastic arm 2801.

[0037] Combine Figure 4 、 Figure 8 and Figure 9 During the reset operation, the trip unit 12 moves upward and applies a lifting force to the elastic arm 2801 through the top rod 1201, so that the elastic arm 2801 and the contact arm 1901 are separated from each other and are in a disconnected state. Figure 9 As shown, the working status indicator light 901 is on, indicating normal working status. When a leakage fault occurs in the power line and causes tripping, the tripper 12 moves down, and the top rod 1201 releases the lifting force applied to the elastic arm 2801, so that the elastic arm 2801 and the contact arm 1901 contact each other and are in the connected state, as shown in FIG. Figure 8Because one end 2802 of the auxiliary switch 28 is soldered to the control circuit board, that is, to the fault indication circuit on the control circuit board, the fault indication circuit forms a loop, and the fault status indicator light 902 lights up. The user can visually see the color change of the indicator light, for example, from green to red, through the indicator hole 601 from outside the product, which serves as a warning.

[0038] When the leakage fault in the power line is eliminated, press the reset button 6 to move the tripper 12 upward, and the top rod 1201 applies a lifting force to the elastic arm 2801 again, so that the elastic arm 2801 and the contact arm 1901 are separated from each other and are in a disconnected state. The fault status indicator light 902 goes out. Since the working status indicator light 901 is connected to the load end of the product, the product is reset at this time so that the load end is energized, and the working status indicator light 901 lights up. The user can intuitively see the color change of the indicator light through the indicator hole 601 from the outside of the product, for example, from red to green, indicating that the product can be used normally.

[0039] In some embodiments, the housing is provided with seals at least at the input end and the output end. Figure 2 In the illustrated embodiment, the input and output terminals may be provided with a sealing ring 4 and a sealing plug 5, respectively. Optionally, a button waterproof cap 8 may be provided between the reset button 6 and the test button 7 and the control circuit board 9. Optionally, a waterproof ring 30 may be provided between the upper cover 1, the base 2, and the first and second rear covers 3a and 3b.

[0040] During assembly, the input and output terminal assemblies, reset assembly, trip assembly, and magnetic ring assembly 16 are positioned within base 2. The control circuit board 9 is inserted and welded to the component pins within base 2, forming the movement assembly. Next, the button waterproof cap 8 is inserted onto the top of the reset rod 10, and the reset button 6 and test button 7 are assembled, followed by the waterproof ring 30. Next, the top cover 1 is inserted and secured to the base 2 with screws 31. The first and second back covers 3a, 3b are secured to the top cover 1 with back cover screws 32. Finally, the sealing ring 4 and sealing plugs 5 are inserted into each end of the top cover 1 to complete the product assembly.

[0041] When wiring is required, the first rear cover 3a and the second rear cover 3b can be removed, and the input and output power lines can be respectively inserted into the two ends of the shell and connected to the input terminal assembly and the output terminal assembly, and then the sealing ring 4 and the sealing plug 5 are inserted, and the wire pressing block 17 is tightened with the wire pressing screw 18 to press the power line, and finally the first rear cover 3a, the second rear cover 3b and the upper cover 1 are fixed to complete the wiring of the product.

[0042] It should be understood here that the embodiments shown in the figures only show the optional shapes, sizes and arrangements of the various optional components of the leakage protection device according to the present disclosure. However, they are only illustrative and not restrictive. Other shapes, sizes and arrangements may also be adopted without departing from the spirit and scope of the present disclosure.

[0043] The technical content and technical features of the present disclosure have been disclosed above. However, it is understood that, based on the creative ideas of the present disclosure, those skilled in the art may make various changes and improvements to the above-disclosed concepts, all of which fall within the scope of protection of the present disclosure. The description of the above embodiments is illustrative rather than restrictive, and the scope of protection of the present disclosure is determined by the claims.

Claims

1. A leakage protection device with a fault display function, comprising a housing and a core assembly disposed in the housing, characterized in that: The core assembly includes a control circuit board, an input terminal assembly and an output terminal assembly coupled to the control circuit board, a reset assembly and a trip assembly; Wherein, the core assembly includes an auxiliary switch, the auxiliary switch is coupled to the control circuit board and driven by the trip assembly to separate from or contact the input terminal assembly to be in an off state or a on state; and The movement assembly includes a status indicator, which is coupled to the control circuit board and includes a working status indicator light capable of displaying a first color to provide a first indication in response to the disconnected state, and a fault status indicator light capable of displaying a second color to provide a second indication in response to the connected state.

2. The leakage protection device with fault display function according to claim 1, characterized in that: The trip assembly includes a tripper, which is arranged below the auxiliary switch and is provided with a push rod. The push rod applies a lifting force to the auxiliary switch to put the auxiliary switch in the disconnected state, or releases the lifting force to put the auxiliary switch in the connected state.

3. The leakage protection device with fault display function according to claim 2, characterized in that: The auxiliary switch is constructed as an elastic sheet, one end of which is coupled to the control circuit board, and the other end of which is an elastic arm for being separated from or in contact with the input terminal assembly.

4. The leakage protection device with fault display function according to claim 3, characterized in that: The input terminal assembly is a live wire input terminal assembly or a neutral wire input terminal assembly, and the live wire input terminal assembly or the neutral wire input terminal assembly is provided with a contact arm that cooperates with the elastic arm of the auxiliary switch.

5. The leakage protection device with fault display function according to claim 1, characterized in that: The reset assembly includes a reset rod and a reset button attached to the reset rod. The reset rod is made of a transparent material and is adjacent to the status indicator. The reset button is exposed outside the housing and is provided with an indicator hole.

6. The leakage protection device with fault display function according to any one of claims 1 to 4, characterized in that: The shell includes an upper cover and a base, the movement assembly is arranged on the base, and the shell also includes a first back cover and a second back cover respectively attached to the two ends of the base, the input terminal assembly and the output terminal assembly are respectively located between the first back cover and the second back cover and the upper cover to form an input terminal and an output terminal.

7. The leakage protection device with fault display function according to claim 6, characterized in that: The housing is provided with sealing members at least at the input end and the output end.

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