CN116865389A

CN116865389A - Leakage protection device with charging output function

Info

Publication number: CN116865389A
Application number: CN202310816651.7A
Authority: CN
Inventors: 李成力; 吕增辉; 张晓明
Original assignee: Suzhou Ele Mfg Co ltd
Current assignee: Suzhou Ele Mfg Co ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2023-10-10

Abstract

The present disclosure provides a leakage protection device with output function charges, including the casing and set up the core subassembly in the casing, the core subassembly includes: a ground fault protection assembly including a first control circuit board, a first input assembly and a first output assembly coupled to the first control circuit board; a charging power supply assembly including a second control circuit board, a second input assembly and a second output assembly coupled to the second control circuit board; wherein the second control circuit board is arranged perpendicular to the first control circuit board and coupled to each other through the second input assembly. The leakage protection device is integrated with the charging power supply assembly, so that the reliability of the leakage protection device is guaranteed, and meanwhile, the functions of large-current output and quick charging output are achieved in a small space by utilizing reasonable structural layout.

Description

Leakage protection device with charging output function

Technical Field

The present disclosure relates generally to the field of leakage protection devices, and in particular, to a leakage protection device with a charging output function.

Background

With the progress of technology and the improvement of safety consciousness, the application of products with the functions of ground fault protection (GFCI), earth leakage protection (ALCI) and arc fault protector (AFCI) is wider and wider. For a socket-Type leakage protection device, the existing leakage protection device generally has only a conventional output socket, has no USB charging interface, cannot meet the requirements of different charging interfaces (such as Type-a interface or Type-C interface) of different devices (such as mobile phones, tablet computers and the like which need to be charged via a USB power supply protocol), and brings inconvenience to users.

With the increasing demands of reliability and functionality of the earth leakage protection devices, there is an urgent need in the market for a product with both earth fault protection (earth leakage protection) and USB output charging functions.

Disclosure of Invention

Based on the above-mentioned demand, this disclosure provides a leakage protection device with output function charges, with leakage protection function and output function integration as an organic whole that charges to reasonable structural size and reliable performance satisfy heavy current output and fill output soon, satisfy different application.

To this end, according to the present disclosure, there is provided a leakage protection device having a charging output function, including a case and a core assembly disposed in the case, the core assembly including: a ground fault protection assembly including a first control circuit board, a first input assembly and a first output assembly coupled to the first control circuit board; a charging power supply assembly including a second control circuit board, a second input assembly and a second output assembly coupled to the second control circuit board; wherein the second control circuit board is arranged perpendicular to the first control circuit board and coupled to each other through the second input assembly.

The present disclosure may further include any one or more of the following optional forms according to the above technical idea.

In some alternatives, the first input assembly includes at least a neutral input and a phase input; the first output assembly comprises at least a neutral line output end, a phase line output end, a neutral line output interface and a phase line output interface.

In some alternatives, the second input assembly includes power conductors connected to the first control circuit board and the second control circuit board, respectively.

In some alternative forms, the second output component includes at least one USB output interface.

In some alternatives, the charging power supply assembly further includes a transformer coupled to the second control circuit board and a switching power supply chip.

In some alternatives, the housing includes an upper cover and a base, the first control circuit board is disposed parallel to a bottom surface of the base, and the second control circuit board is disposed perpendicular to the bottom surface of the base.

In some alternatives, the charging power assembly further comprises a third control circuit board disposed perpendicular to and coupled to the second control circuit board, the second output assembly comprising at least one USB output interface disposed on the third control circuit board.

In some alternatives, the ground fault protection assembly further includes a ground fault detection magnetic ring coupled to the first control circuit board.

In some alternatives, the ground fault protection assembly further includes a connection tab adapted to connect the first input assembly and the first output assembly, the connection tab including at least a neutral connection tab and a phase connection tab for electrical connection between the first input assembly and the first output assembly.

In some alternatives, the earth leakage protection device includes a middle bracket defining a first mounting area for the ground fault protection component and a second mounting area for the charging power component and defining a location for at least the first output component.

In some alternatives, the leakage protection device includes at least one heat sink disposed adjacent to the charging power supply assembly.

In some alternatives, the heat sink is configured as a stationary bracket having a bend disposed adjacent to and parallel to and spaced apart from the second control circuit board.

In some alternatives, the middle bracket is provided with a securing portion for securing the heat sink, the securing portion spacing the heat sink from the second mounting area.

In some alternatives, the earth leakage protection device further includes an auxiliary functional component that can be located on the mid-level support, the auxiliary functional component including a night light control component and/or an indication component.

In some alternative forms, the earth leakage protection device includes a reset assembly and a trip assembly to switch the input and output of the earth fault protection assembly between a closed state and an open state.

In some alternative forms, the earth leakage protection device further includes a test assembly.

The leakage protection device is integrated with the charging power supply assembly, so that the reliability of the leakage protection device is guaranteed, and meanwhile, the functions of large-current output and quick charging output are achieved in a small space by utilizing reasonable structural layout. In addition, the structure of the present disclosure is simple, low in cost, convenient to implement, reliable in performance, and widely applicable to various application occasions.

Drawings

Other features and advantages of the present disclosure will be better understood from the following detailed description of alternative embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic top view of a conventional leakage protection device;

FIG. 2 is a schematic top view of a leakage protection device according to one embodiment of the present disclosure;

fig. 3A and fig. 3B are schematic perspective views of the earth leakage protection device of fig. 2 from different angles of view;

FIG. 4 is an exploded view of the leakage protection device of FIG. 2;

FIG. 5A is a schematic view of a ground fault protection component of the leakage protection device of FIG. 2, and FIG. 5B is an exploded schematic view of the ground fault protection component;

fig. 6A is a schematic diagram of a charging power supply assembly in the leakage protection device of fig. 2, and fig. 6B is an exploded schematic diagram of the charging power supply assembly;

FIG. 7A is a schematic view of a cartridge assembly of the earth leakage protection device of FIG. 2, and FIG. 7B is a partially exploded schematic view of the cartridge assembly and showing a base;

fig. 8A to 8C respectively show schematic top views of earth leakage protection devices according to other embodiments of the present disclosure.

Detailed Description

The making and using of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the disclosure, and do not limit the scope of the disclosure. The structural position of the various components as described, such as the directions of up, down, top, bottom, etc., is not absolute, but rather relative. When the individual components are arranged as shown in the figures, these directional expressions are appropriate, but when the position of the individual components in the figures changes, these directional expressions also change accordingly.

The terms "comprising," "including," and "having," and the like, herein, are open ended and do not exclude additional unrecited elements, steps, or components.

Herein, unless specifically limited otherwise, terms such as "coupled," "mounted," "connected," "attached," and the like are to be construed broadly and may be fixedly connected, detachably connected, or integrally formed, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms herein above will be understood by those skilled in the art as the case may be.

It has been appreciated that conventional output sockets such as the existing earth leakage protection device shown in fig. 1 have failed to meet the user's greater charging requirements, and thus sockets with USB charging interfaces have evolved. Accordingly, how to implement the conventional outlet output function and the USB charging function in a limited space and avoid the problems such as temperature rise generated when a plurality of output interfaces coexist is a key factor to be considered in designing such products.

According to the concepts of the present disclosure, there is provided a leakage protection device having a charging output function, and in combination with one embodiment shown in fig. 2 to 4, the leakage protection device includes a case and a movement assembly disposed within the case. The housing comprises an upper cover 1 and a base 18 connected with each other, and the upper cover and the base can be connected and fixed with each other by using a fastener such as a screw or the like, or can be connected and fixed by using a clamping way or the like. The base 18 is a high capacity base to provide more space for receiving components to achieve high current output and USB fast charge output. The upper cover 1 is provided with a plurality of first output holes 101 for outputting large current and at least one second output hole 102 for outputting USB flash charge. The first output aperture 101 may be configured as an I-shaped aperture or a T-shaped aperture, as desired, and the second output aperture 102 may also be configured as a USB output interface suitable for any one or more of types-A, type-C.

Referring to fig. 4, the deck assembly includes a ground fault protection assembly 13 and a charging power assembly 15, wherein, in conjunction with fig. 5A and 5B, the ground fault protection assembly 13 includes a first control circuit board 1321 and a first input assembly and a first output assembly coupled to the first control circuit board 1321. In the illustrated embodiment, first input assembly includes at least a neutral input 1317 and a phase input 1318 to provide power input to first control circuit board 1321, and first output assembly includes at least a neutral output 1319 and a phase output 1320, and neutral output interface 9 and phase output interface 11 (fig. 4). The input terminal wire pressing block 16 and the output terminal wire pressing block 17 are respectively arranged at the input terminal and the output terminal, and the neutral wire output interface 9 and the phase wire output interface 11 form an output socket interface. In some embodiments, the first output assembly further comprises a ground mounting bracket 5.

The charging power supply assembly 15 includes a second control circuit board 153, and a second input assembly and a second output assembly coupled to the second control circuit board 153. As shown in fig. 4, the second control circuit board 153 is disposed perpendicular to the first control circuit board 1321 and is coupled to each other through a second input assembly. In the illustrated embodiment, the second input assembly includes power conductors 14 connected, for example by soldering, to the first control circuit board 1321 and the second control circuit board 153, respectively, to power the second control circuit board 153 of the USB output interface. The second output assembly includes at least one USB output interface.

In the illustrated embodiment, the first control circuit board 1321 is disposed parallel to the bottom surface of the base 18, and the second control circuit board 153 is disposed perpendicular to the bottom surface of the base 18.

By adopting the arrangement mode, unlike the current parallel superposition mode of the control circuit board in the leakage protection device with the USB interface, the leakage protection device disclosed by the invention realizes integration of various output interfaces in more compact space layout and is beneficial to solving the temperature rise problem caused by a large amount of heat generated by a core assembly.

Advantageously, the charging power supply assembly 15 further comprises a transformer and a switching power supply chip coupled to the second control circuit board 153 for converting the ac power input via the power conductor 14 into dc power for the USB output interface to achieve charging.

It should be appreciated that the manner of reducing the temperature rise may be achieved, for example, by spacing the ground fault protection component 13 and the charging power supply component 15 from one another. As shown in connection with fig. 4, 7A and 7B, the earth leakage protection device includes a middle bracket 12, the middle bracket 12 defining a first mounting area 121 for the ground fault protection component 13 and a second mounting area 122 for the charging power supply component 15, the two areas being spaced apart from each other. The middle bracket 12 also defines a positioning portion for at least the first output assembly, in particular for positioning the neutral output interface 9 and the phase output interface 11.

In some embodiments, the earth leakage protection device includes at least one heat sink that is disposed adjacent to the charging power supply assembly 15 to help reduce the temperature rise. As shown in connection with fig. 4 and 7B, the heat sink 6 may be configured as a fixing bracket having a bent portion 601, the bent portion 601 being disposed adjacent to the second control circuit board 153 and being parallel to and spaced apart from the second control circuit board 153.

In the embodiment shown, the middle bracket 12 is provided with a fixing portion 123 for fixing the heat sink 6, and as shown in fig. 7B, the fixing portion 123 is configured, for example, in a snap-fit manner, so as to be suitable for snap-fixing the heat sink 6 (specifically, the bent portion 601) and spaced apart from the second mounting area 122. In this way, heat generated by the charging power supply assembly 15 in the working process is transmitted to the outside of the shell through the radiator 6 parallel to the charging power supply assembly, so as to achieve the effect of cooling the inside of the shell.

In some embodiments, the charging power supply assembly 15 further includes a third control circuit board. Referring to fig. 6A and 6B, the third control circuit board 152 is disposed perpendicular to the second control circuit board 153 and coupled to the second control circuit board 153, for example, soldered to the second control circuit board 153. The second output assembly includes at least one USB output interface 151 disposed on a third control circuit board 152. In this way, the third control circuit board 152 can be configured to be smaller in size and arranged parallel to the first control circuit board 1321, thereby facilitating orienting the USB output interface 151 with the output socket interface in a substantially flush manner towards the first and second output apertures 101, 102 of the upper cover 1.

Referring back to fig. 5A and 5B, the ground fault protection component 13 further includes a ground fault detection magnetic ring coupled to the first control circuit board 1321 and a connecting tab adapted to connect the first input component and the first output component. Specifically, two magnetic rings 135, 136 are respectively sandwiched between the magnetic ring barrier sheet 134 and the shielding sheet 137 and are mounted in the magnetic ring housing 138 to constitute a ground fault detection magnetic ring. The connecting pieces comprise at least a neutral connecting piece 132 and a phase connecting piece 131 for switching power between the first input assembly and the first output assembly. The neutral wire connection piece 132 and the phase wire connection piece 131 are configured as spring arms and have a movable contact 133 arranged at the free end of the spring arms, and the neutral wire output 1319 and the phase wire output 1320 are provided with corresponding stationary contacts.

The earth leakage protection device further comprises a reset assembly and a trip assembly to switch the input and output of the earth fault protection assembly 13 between a closed state and an open state. In certain embodiments, the earth leakage protection device further comprises a test component. As shown in fig. 4 and 5B, the reset assembly includes a reset button 3 having a reset lever and a reset spring 4. The trip assembly includes a catch 1311, a trip unit 1312, a trip spring 1313, a trip core 1314, and a coil bracket 1315. The test assembly includes test button 2, test strip 10, and test wires 139, and optionally, wire holder 1310. Correspondingly, the upper cover 1 is provided with guide holes for the reset button 3 and the test button 2 to protrude so as to facilitate operation. Thus, by operating the reset button 3, the reset assembly and the trip assembly can be made to cooperate to bring the input and output terminals into a closed state (the movable contacts 133 of the neutral wire connecting piece 132 and the phase wire connecting piece 131 are in contact with the stationary contacts of the neutral wire output terminal 1319 and the phase wire output terminal 1320), and the earth leakage protection device operates normally. When an electric leakage fault occurs or when the test button 2 is operated, the ground fault protection assembly detects whether a preset fault condition is reached, and if the fault condition is reached, the ground fault protection assembly immediately switches to an off state (the movable contacts 133 of the neutral wire connecting piece 132 and the phase wire connecting piece 131 are separated from contact with the stationary contacts of the neutral wire output end 1319 and the phase wire output end 1320), so that an electric leakage protection function is realized, and an electric shock accident is effectively avoided. It should be understood that the reset component and trip component for implementing the reset trip function of the leakage protection device and the test component for implementing the test function may take any suitable form in the art, and the illustrations are merely examples and are not repeated herein.

During assembly, the trip spring 1313 and the trip iron core 1314 are arranged in the coil bracket 1315 in a penetrating manner and are connected with the lock catch 1311 and the release 1312, the wire fixing frame 1310 is fixed through a clamping groove at the tail part of the coil bracket 1315, the trip spring 1313 and the trip iron core 1314 are restrained in the coil bracket 1315, and the auxiliary switch piece 1316 is assembled at the bottom of the coil bracket 1315 through a buckle. The assembled coil bracket 1315 is soldered to the first control circuit board 1321, and at the same time, the phase wire connecting piece 131 and the neutral wire connecting piece 132 are soldered to the first control circuit board 1321 through the assembled ground fault detection magnetic ring. Finally, test wire 139 is soldered to first control circuit board 1321 through wire mount 1310 and is assembled with neutral input 1317, phase input 1318, neutral output 1319, phase output 1320, which are also soldered thereto, to form ground fault protection assembly 13 for detecting the presence of a ground fault in the load output line and disconnecting the power connection of the input to the output and output jack interface upon a fault.

In some embodiments, the earth leakage protection device further includes an auxiliary functional component that can be retained on the middle bracket 12. As shown in fig. 4, the auxiliary functional components include, for example, a night light control component 7 and/or an indication component 8.

As an example of the assembly method, the assembled ground fault protection assembly 13 is connected to the second control circuit board 153 of the charging power assembly 15 through the power lead 14, and keeps the first control circuit board 1321 placed inside the base in parallel with the bottom surface of the base 18, and at this time, the second control circuit board 153 is kept perpendicular to the bottom surface of the base 18. The input and output blocks 16, 17 may be mounted to neutral input 1317, phase input 1318, neutral output 1319, 1320, respectively, of the ground fault protection assembly 13. Thereafter, the middle bracket 12 is placed on the base 18 where the ground fault protection component 13 and the charging power supply component 15 are assembled. The test button 2 passes through the grounding fixed support 5 to be abutted against the test piece 10 and is placed on the middle-layer support 12, the reset button 3 and the reset spring 4 pass through the grounding fixed support 5 to be placed on the middle-layer support 12, the neutral line output interface 9 and the phase line output interface 11 are respectively placed in the positioning parts on the middle-layer support 12, meanwhile, the phase line output interface 11 is abutted against the test piece 10 to keep good contact, and the night lamp control panel assembly 7 and the indication assembly 8 (such as an indication lamp light guide sheet) are respectively assembled on the limiting positions of the middle-layer support 12. The radiator 6 is held in a defined position assembled in the base 18 in parallel with the second control circuit board 153 of the charging power supply assembly 15 by the middle bracket 12, and finally the upper cover 1 is clamped with the base 18 by abutting against the ground fixing bracket 5 and the radiator 6.

As an example, fig. 8A to 8C show several arrangements of USB output interfaces, so that products combined with a plurality of different USB output interfaces can be formed. It will be appreciated that other combinations not shown may be made according to actual needs based on this concept.

It should be understood herein that the embodiments shown in the drawings only show alternative shapes, sizes and arrangements of the various optional components of the earth leakage protection device according to the present disclosure, however, they are merely illustrative and not limiting, and that other shapes, sizes and arrangements may be adopted without departing from the spirit and scope of the present disclosure.

While the technical contents and features of the present disclosure have been disclosed above, it will be understood that those skilled in the art may make various changes and modifications to the above disclosed concept under the inventive concept of the present disclosure, but all fall within the scope of the present disclosure. The above description of embodiments is illustrative and not restrictive, and the scope of the disclosure is defined by the claims.

Claims

1. The utility model provides a leakage protection device with output function charges, includes the casing and sets up the core subassembly in the casing, its characterized in that, the core subassembly includes:

a ground fault protection assembly including a first control circuit board, a first input assembly and a first output assembly coupled to the first control circuit board;

a charging power supply assembly including a second control circuit board, a second input assembly and a second output assembly coupled to the second control circuit board;

wherein the second control circuit board is arranged perpendicular to the first control circuit board and coupled to each other through the second input assembly.

2. The earth leakage protection device with charge output function of claim 1, wherein said first input assembly comprises at least a neutral input and a phase input; the first output assembly comprises at least a neutral line output end, a phase line output end, a neutral line output interface and a phase line output interface.

3. The earth leakage protection device with charging output function of claim 1, wherein the second input assembly comprises power supply leads connected to the first and second control circuit boards, respectively.

4. The leakage protection device with a charging output function according to claim 1, wherein the second output component comprises at least one USB output interface.

5. The leakage protection device with a charging output function according to claim 1, wherein the charging power supply assembly further comprises a transformer and a switching power supply chip coupled to the second control circuit board.

6. The earth leakage protection device with charging output function of claim 1, wherein the housing comprises an upper cover and a base, the first control circuit board is arranged parallel to a bottom surface of the base, and the second control circuit board is arranged perpendicular to the bottom surface of the base.

7. The leakage protection device with charge output function according to claim 1, wherein the charge power supply assembly further comprises a third control circuit board disposed perpendicular to and coupled to the second control circuit board, the second output assembly comprising at least one USB output interface disposed on the third control circuit board.

8. The leakage protection device with a charging output function of claim 1, wherein the ground fault protection assembly further comprises a ground fault detection magnetic ring coupled to the first control circuit board.

9. The earth leakage protection device with charging output function of claim 1, wherein the ground fault protection assembly further comprises a connection tab adapted to connect the first input assembly and the first output assembly, the connection tab comprising at least a neutral connection tab and a phase connection tab for electrical connection and disconnection between the first input assembly and the first output assembly.

10. The earth leakage protection device with charging output function of any one of claims 1 to 9, characterized in that it comprises a middle bracket defining a first mounting area for the ground fault protection component and a second mounting area for the charging power supply component and defining a positioning portion for at least the first output component.

11. The leakage protection device with a charge output function according to claim 10, wherein the leakage protection device comprises at least one heat sink disposed adjacent to the charging power supply component.

12. The leakage protection device with a charge output function according to claim 11, wherein the heat sink is configured as a fixed bracket having a bent portion arranged adjacent to and parallel to and spaced apart from the second control circuit board.

13. The earth leakage protection device with charging output function as defined in claim 11, wherein said middle bracket is provided with a fixing portion for fixing said heat sink, said fixing portion spacing said heat sink from said second mounting area.

14. The leakage protection device with a charging output function of claim 10, further comprising an auxiliary function component capable of being located on the middle bracket, the auxiliary function component comprising a night light control component and/or an indication component.

15. The earth leakage protection device with charging output function of any one of claims 1-9, wherein the earth leakage protection device comprises a reset component and a trip component to switch the input and output of the earth fault protection component between a closed state and an open state.

16. The leakage protection device with a charge output function according to any one of claims 1 to 9, further comprising a test component.