A daily electric appliance plug with electric leakage detection function

Abstract

The utility model relates to plug technical field, concretely relates to a daily electric appliance plug with leakage detection function, including detachable connection's lower casing and upper casing, the upper side of upper casing installs the metal sheet, the upper side fixed mounting of metal sheet has warning light, the one end fixed mounting of located lower casing has the plug -in board, the inside installation of located insulating sleeve has the metal wire, the metal wire and fixed mounting in the overlap board of lower casing, located the movable element that sets up between the overlap board and the middle part of the bended plate, still include the current detection end of setting in the inside position of lower casing, through setting in the current detection end of plug inside, cooperation installation warning light on the metal sheet, can carry out instantaneous warning to leakage state, and when the leakage state appears in the plug, through the moving piece that moves in the metal wire and the middle part of plug -in board correspondingly and is connected, can carry out power failure to the plug, improves the security of plug use time.

Description

Technical Field

[0001] This utility model relates to the field of plugs, and in particular to a plug for household appliances with leakage current detection function. Background Technology

[0002] The connectors of general electronic products and the plugs of electrical appliances are called plugs. Leakage current occurs when there is a potential difference between the appliance's casing, the live wire, and ground due to some reason that creates a connection. The best way to detect leakage current is to touch a live conductor with a test pen. If the neon bulb lights up briefly and then immediately goes out, it indicates that the conductor carries static electricity; if it stays lit, it indicates leakage current. Existing plugs do not have leakage current detection capabilities, which could endanger user safety if leakage occurs. Therefore, a plug for household appliances with leakage current detection functionality needs to be designed. Summary of the Invention

[0003] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a household appliance plug with leakage detection function, which can effectively solve the problem that the existing plugs do not have the function of detecting leakage when in use, and the safety of the user may be endangered if leakage occurs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A plug for a household appliance with leakage current detection function includes a detachably connected lower housing and an upper housing. A metal plate is installed on the upper side of the upper housing, and a warning light is fixedly installed on the upper side of the metal plate. A plug plate is fixedly installed at one end of the lower housing, a bending plate is fixedly installed at the other end of the lower housing, an insulating sleeve is fixedly installed at the other end of the lower housing, a metal wire is installed inside the insulating sleeve, the metal wire is connected to a lap plate fixedly installed inside the lower housing, a movable part is provided between the lap plate and the bending plate, and a current detection terminal is also provided inside the lower housing.

[0005] Preferably, the device further includes an installation groove formed inside the lower housing, with the inner end of the plug-in plate positioned inside the installation groove, and the end of the plug-in plate overlapping with the bent plate.

[0006] Preferably, the movable component includes a movable plate movably connected in the mounting groove. A sleeve is fixedly installed on the upper end of the movable plate. A connecting wire is sleeved inside the sleeve. One end of the connecting wire overlaps with the outer wall of the bent plate, and the other end of the connecting wire overlaps with the outer wall of the overlapping plate. The two movable plates are elastically connected between their middle parts by an electric spring.

[0007] Preferably, the outer wall of the bending plate is provided with an overlap groove, and the inner wall of the overlap groove is provided with a metal ring. The metal ring is electrically connected to the plug plate. When the plug does not leak electricity, the connecting wire is electrically connected to the metal ring.

[0008] Preferably, the current detection terminals are respectively located on both sides of the mounting groove, the inner wall of the current detection terminal is located outside the overlapping plate and the bending plate, and an arc-shaped plate is fixedly installed at the upper end of the current detection terminal, with the upper outer wall of the arc-shaped plate overlapping the lower outer wall of the metal plate.

[0009] Preferably, a limiting block is fixedly connected to the inner wall of the lower housing, and a circular hole is provided in the limiting block. A circular rod is fixedly installed on the upper housing, and the circular rod is slidably engaged with the circular hole. A through groove is provided on the outer walls on both sides of the limiting block, and the outlet of the through groove is located on one side of the plug-in plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: This invention, through a current detection terminal set inside the plug and a warning light mounted on a metal plate, can provide immediate warning of leakage. When leakage occurs inside the plug, the power to the plug can be cut off by a movable component connected between the metal wire and the middle of the plug plate, thus improving the safety of the plug during use. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the overall structure of the plug of the present invention; Figure 2 This is a schematic diagram of the internal structure of the plug of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the plug of the present invention; Figure 4 This is a schematic diagram of the exploded structure of the plug-in plate of the present invention.

[0013] Drawing number explanation: 100. Lower housing; 101. Mounting slot; 102. Round hole; 110. Upper housing; 120. Metal plate; 130. Warning light; 140. Connector plate; 200. Bending plate; 201. Overlap groove; 202. Metal ring; 210. Overlap plate; 220. Metal wire; 230. Insulating sleeve; 300. Current detection terminal; 310. Arc-shaped plate; 400. Moving plate; 410. Sleeve; 420. Electric spring; 430. Connecting wire. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0016] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0017] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0018] Example: Refer to Appendix Figure 1-4 As shown, a household appliance plug with leakage detection function includes a detachably connected lower housing 100 and an upper housing 110. The upper housing 110 and the lower housing 100 are detachably connected by screws. A metal plate 120 is installed on the upper side of the upper housing 110, and a warning light 130 is fixedly installed on the upper side of the metal plate 120. A plug plate 140 is fixedly installed at one end of the lower housing 100. After the upper housing 110 and the lower housing 100 are connected and fixed, the plug plate 140 can be snapped between the middle of the lower housing 100 and the upper housing 110. A bending plate 200 is fixedly installed at one end of the lower housing 100. An insulating sleeve 230 is fixedly installed at the other end of the lower housing 100. A metal wire 220 is installed inside the insulating sleeve 230. The metal wire 220 is connected to a splicing plate 210 fixedly installed inside the lower housing 100.

[0019] Specifically, in this application, when the plug is in normal use without leakage, the corresponding plug plate 140 and the bending plate 200 maintain a stable overlap, and the corresponding metal wire 220 maintains a stable contact with the overlap plate 210. A movable plate 400 is provided between the middle of the overlap plate 210 and the bending plate 200. A connecting wire 430 is provided on the movable plate 400. One end of the connecting wire 430 maintains contact with the overlap plate 210, and the other end of the connecting wire 430 maintains an overlap with the outer wall of the bending plate 200. At this time, the plug plate 140 maintains a stable electrical connection with the metal wire 220.

[0020] Furthermore, the lower housing 100 includes an installation groove 101 formed inside the lower housing 100. The inner end of the plug-in plate 140 is positioned inside the installation groove 101, and the end of the plug-in plate 140 overlaps with the bent plate 200. A limiting block is fixedly connected to the inner wall of the lower housing 100. The limiting block has a circular hole 102. A circular rod is fixedly installed on the upper housing 110, and the circular rod slides into the circular hole 102. Through grooves are formed on the outer walls of both sides of the limiting block, and the outlet of the through groove is located on one side of the plug-in plate 140. Correspondingly, the limiting block, which is set in the installation groove 101, can fix the position of the plug-in plate 140, and can further tighten the position of the plug-in plate 140 and the bent plate 200, ensuring the stability of the connection between the plug-in plate 140 and the bent plate 200.

[0021] Furthermore, it also includes current detection terminals 300 disposed inside the lower housing 100. The current detection terminals 300 are respectively disposed on both sides of the mounting groove 101. The inner wall of the current detection terminals 300 is located outside the overlapping plate 210 and the bending plate 200. An arc-shaped plate 310 is fixedly installed at the upper end of the current detection terminal 300, and the upper outer wall of the arc-shaped plate 310 overlaps with the lower outer wall of the metal plate 120. Specifically, when the plug leaks current, a potential difference will appear between the two current detection terminals 300 disposed within the mounting groove 101. The current detection terminals 300 are respectively located outside the bending plate 200 and the overlapping plate 210, and are disposed on the inner wall of the mounting groove 101. This will generate current.

[0022] Furthermore, an arc-shaped plate 310 is fixedly installed on the corresponding current detection terminal 300. The upper end of the arc-shaped plate 310 overlaps with the lower outer side of the metal plate 120. When there is a potential difference between the two current detection terminals 300, a current will be generated on the metal plate 120. When current flows through the metal plate 120, the warning light 130 connected to the metal plate 120 will be in a powered-on state, thereby reminding the user to avoid the electrical danger caused by the user directly contacting the plug.

[0023] Furthermore, to improve safety when there is a leakage in the plug, the plug can be disconnected. Specifically, a movable component is provided between the middle of the overlapping plate 210 and the bending plate 200. The movable component includes a movable plate 400 movably connected in the mounting groove 101. A sleeve 410 is fixedly installed on the upper end of the movable plate 400. A connecting wire 430 is sleeved inside the sleeve 410. One end of the connecting wire 430 overlaps with the outer wall of the bending plate 200, and the other end of the connecting wire 430 overlaps with the outer wall of the overlapping plate 210. The two movable plates 400 are elastically connected between their middle parts by an electric spring 420. When the plug leaks current, there will be current in the corresponding metal plate 120. At this time, the electric spring 420 set between the two moving plates 400 will be in a energized and contracted state. Correspondingly, the two moving parts will move closer to each other. At this time, the connecting wires 430 sleeved in the sleeve 410 will move closer to each other simultaneously, acting as a switch to disconnect the electrical connection between the bending plate 200 and the overlapping plate 210. At this time, the plug will be in a de-energized state, reducing the risk of use caused by the plug leaking current.

[0024] Furthermore, an overlap groove 201 is provided on the outer wall of the bending plate 200, and a metal ring 202 is provided on the inner wall of the overlap groove 201. When the plug is used normally and does not leak electricity, the corresponding metal ring 202 is electrically connected to the plug plate 140, and the connecting wire 430 is electrically connected to the metal ring 202. At this time, the plug can be used normally. When the plug leaks electricity, the corresponding two moving plates 400 will move closer to each other. At this time, the end of the connecting wire 430 will slide in the overlap groove 201, so that the metal ring 202 and the connecting wire 430 are disconnected.

[0025] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from the stated principles.

Claims

1. A plug for household appliances with leakage current detection function, characterized in that, include: The lower housing (100) and the upper housing (110) are detachably connected. A metal plate (120) is installed on the upper side of the upper housing (110), and a warning light (130) is fixedly installed on the upper side of the metal plate (120). A plug plate (140) is fixedly installed at one end of the lower housing (100), a bending plate (200) is fixedly installed at the end of the lower housing (100), an insulating sleeve (230) is fixedly installed at the other end of the lower housing (100), a metal wire (220) is installed inside the insulating sleeve (230), the metal wire (220) is connected to a lap plate (210) fixedly installed inside the lower housing (100), a movable part is provided between the lap plate (210) and the bending plate (200), and a current detection terminal (300) is provided inside the lower housing (100).

2. A household appliance plug with leakage current detection function according to claim 1, characterized in that: It also includes an installation groove (101) opened inside the lower housing (100), the inner end of the plug plate (140) is located inside the installation groove (101), and the end of the plug plate (140) is overlapped with the bent plate (200).

3. A household appliance plug with leakage current detection function according to claim 2, characterized in that: The movable component includes a movable plate (400) movably connected in the mounting groove (101). A sleeve (410) is fixedly installed on the upper end of the movable plate (400). A connecting line (430) is sleeved inside the sleeve (410). One end of the connecting line (430) overlaps with the outer wall of the bent plate (200), and the other end of the connecting line (430) overlaps with the outer wall of the overlapping plate (210). The two movable plates (400) are elastically connected between their middle parts by an electric spring (420).

4. A household appliance plug with leakage current detection function according to claim 3, characterized in that: The outer wall of the bending plate (200) is provided with an overlap groove (201), and a metal ring (202) is provided on the inner wall of the overlap groove (201). The metal ring (202) is electrically connected to the plug plate (140). When the plug does not leak electricity, the connecting line (430) is electrically connected to the metal ring (202).

5. A household appliance plug with leakage current detection function according to claim 4, characterized in that: The current detection terminals (300) are respectively located on both sides of the mounting groove (101). The inner wall of the current detection terminal (300) is located outside the overlapping plate (210) and the bending plate (200). An arc plate (310) is fixedly installed on the upper end of the current detection terminal (300). The upper outer wall of the arc plate (310) overlaps with the lower outer wall of the metal plate (120).

6. A household appliance plug with leakage current detection function according to claim 5, characterized in that: A limiting block is fixedly connected to the inner wall of the lower housing (100), and a circular hole (102) is provided in the limiting block. A circular rod is fixedly installed on the upper housing (110), and the circular rod slides in conjunction with the circular hole (102). A through groove is provided on the outer walls of both sides of the limiting block, and the outlet of the through groove is located on one side of the plug-in plate (140).

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