A leakage protection socket

Abstract

A leakage protection socket includes a base box, an outer cover plate and a socket mechanism, the socket mechanism includes a universal structural seat and a middle cover plate, a two-plug structure, a three-plug structure, a moving contact piece, a static contact piece, and a zero-sequence mutual inductor are clamped in the universal structural seat, and a movable reset component is also clamped, the reset component includes an integrally formed reset button, a reset rod, and two contact action blocks, the upper section of the reset button is movably set on the outer cover plate, and the lower section is used to set the contact action block, the reset rod is set on the bottom surface of the reset button and moves in the universal structural seat, and the contact action block is used to set the moving contact piece so that the moving contact piece and the static contact piece are electrically connected or disconnected through the reset rod. The beneficial effect of the utility model is that the reset component adopts an integrally formed setting, that is, the reset button, the reset rod and the contact action block are integrally formed as a whole, and this structural setting makes the overall structure of the reset component simpler and convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of sockets, in particular to a leakage protection socket. Background Art

[0002] A leakage protection socket, also known as a ground fault protection socket or a residual current protection socket, is an electrical device installed in homes and similar places to protect users from leakage and electric shock hazards.

[0003] Publication No. CN116131013B discloses a leakage protection socket, including a base box, an outer cover plate and a socket mechanism, the socket mechanism is clamped in the base box, the outer cover plate covers the socket structure and is clamped to the base box; the socket mechanism includes a socket connection structure, the socket connection structure includes a universal structure seat and a middle cover plate clamped on the universal structure seat, and the universal structure seat is clamped and connected with a main control circuit board, a two-plug assembly, a three-plug assembly, a reset assembly, a yoke assembly, a trip assembly and a mutual inductor. Although this leakage protection socket can meet the use requirements, it has defects, which are mainly reflected in the reset assembly. The reset assembly adopts a split structure as a whole. The reset assembly includes a reset button and a contact action block. The reset button is inserted into the contact action block and linked with the contact action block, and then the lifting block is driven by the contact action block to link with the moving contact, so as to achieve the electrical connection effect between the moving contact piece and the static contact piece. This structural setting makes the reset button structure more complicated and also causes inconvenience in installation. Utility Model Content

[0004] The utility model aims to solve the above-mentioned shortcomings of the prior art and provides a leakage protection socket to solve the above-mentioned problems.

[0005] The utility model adopts a technical solution to solve the technical problem: the leakage protection socket comprises a base box, an outer cover plate and a socket mechanism, the socket mechanism is arranged in the base box, the outer cover plate covers the socket mechanism and is combined with the base box, the socket mechanism comprises a universal structure seat and a middle cover plate combined with the universal structure seat, a two-plug structure, a three-plug structure, a moving contact piece, a static contact piece, and a zero-sequence mutual inductor are clamped in the universal structure seat, and a movable reset component is also clamped, the reset component comprises an integrally formed reset button, a reset rod, and two contact action blocks, the upper section of the reset button is movably arranged on the outer cover plate, and the lower section is used to set the contact action block, the reset rod is arranged on the bottom surface of the reset button and moves in the universal structure seat, and the contact action block is used to set the moving contact piece so that the moving contact piece and the static contact piece are electrically contacted or disconnected through the reset rod.

[0006] For further improvement, the moving contact piece is configured as a sheet-like component, the diameter of which is bent to form a longitudinal section, a bending section, and a transverse section. The longitudinal section is clamped on the universal structure seat, the bending section is inverted on the universal structure seat, and the transverse section is arranged in the contact action block and has a moving contact point that contacts the static contact point of the static contact piece.

[0007] For further improvement, a slot is provided at the lower end of the contact action block for the transverse section to pass through.

[0008] To be further improved, the slot includes a semi-enclosing wall and an interlaced space defined within the semi-enclosing wall and allowing the transverse section to pass through. The upper inner surface of the semi-enclosing wall serves as a pressing structure that keeps the static contact and the moving contact in contact when power is on, and the lower inner surface serves as a lifting structure that releases the static contact and the moving contact from contact when power is off.

[0009] Further improvement, the spacing between the downward pressing structure and the upward lifting structure is greater than the thickness of the transverse section.

[0010] To be further improved, the upper inner surface serving as the downward pressure structure and the lower inner surface serving as the lifting structure are both inclined surfaces sloping from the lower left to the upper right.

[0011] For further improvement, an extension block for combining with the pressing structure is provided on the right side surface of the contact action block.

[0012] Further improvement, the zero-sequence transformer is arranged at a central position of the universal structural seat and adjacent to the reset component.

[0013] For further improvement, a first card slot, a second card slot, and a third card slot for wiring are provided between the bottom and the side of the middle cover plate.

[0014] The beneficial effects of the utility model are:

[0015] The reset assembly of the utility model is integrally formed, that is, the reset button, the reset rod and the contact action block are integrally formed. This structural setting makes the overall structure of the reset assembly simpler and convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the movable contact piece of the utility model;

[0019] Figure 4 It is a schematic diagram of the full cross-section structure of the socket mechanism of the utility model;

[0020] Figure 5This is a schematic diagram of the structure of the reset assembly of the utility model;

[0021] Figure 6 For this utility model Figure 5 Schematic diagram of the structure from the side;

[0022] Figure 7 It is a structural schematic diagram of the side surface of the socket structure of the utility model. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] Referring to the accompanying drawings: this leakage protection socket includes a base box 1, an outer cover plate 2 and a socket mechanism 3, the socket mechanism 3 is arranged in the base box 1, the outer cover plate 2 covers the socket mechanism 3 and is combined with the base box 1, the socket mechanism 3 includes a universal structure seat 31, and a middle cover plate 32 combined with the universal structure seat 31, the universal structure seat 31 is clamped with a two-plug structure 4, a three-plug structure 5, a moving contact piece 6, a static contact piece 7, and a zero-sequence mutual inductor 9, and a movable reset component 8 is also clamped, the reset component 8 includes an integrally formed reset button 81, a reset rod 82, and two contact action blocks 83, the upper section of the reset button 81 is movably arranged on the outer cover plate 2, and the lower section is used to set the contact action block 83, the reset rod 82 is arranged on the bottom surface of the reset button 81 and moves in the universal structure seat 31, and the contact action block 83 is used to set the moving contact piece 6 so that the moving contact piece 6 and the static contact piece 7 are electrically contacted or de-energized through the reset rod 82. Contact contact block 83 is used to set the moving contact piece 6 so that the moving contact piece 6 and the static contact piece 7 are electrically contacted or de-energized. The principle of the present invention is that the reset assembly 8 is integrally formed, that is, the reset button 81, the reset rod 82 and the contact action block 83 are integrally formed. This structural setting makes the overall structure of the reset assembly 8 simpler and convenient to install.

[0025] The moving contact piece 6 is configured as a sheet-like component, the diameter of which is bent to form a longitudinal section 61, a bending section 62, and a transverse section 63. The longitudinal section 61 is clamped to the universal structure seat 31, the bending section 62 is inverted on the universal structure seat 31, and the transverse section 63 is arranged on the contact action block 83 and has a moving contact 63-a that contacts the static contact 71 of the static contact piece 7. Such a setting makes the moving contact piece 6 elastic, thereby eliminating the need for a spring and simplifying the installation setting, which is mainly achieved through the bending section 62, that is, the bending section 62 presents an arc configuration after bending, so that when the moving contact piece 6 is released from contact with the static contact piece 7, the transverse section 63 can follow the bending section The curvature change of 62 during bending causes an upward shape change, and a plug 31-a is provided in the universal structure seat 31, which matches the configuration of the initial shape of the bending section 62. The plug 31-a plays a supporting role at the bottom on the one hand, and a guiding role in the shape change on the other hand, which helps to reset the bending section 62. The longitudinal section 61 plays a fixing role, which is tightly matched with the card slot 31-b in the universal structure seat 31 to prevent the moving contact piece 6 from moving up as a whole and affecting the bending change when the moving contact piece 6 undergoes a bending change. The moving contact 63-a and the static contact 71 are used to provide sufficient contact area to ensure the stability of power supply.

[0026] The lower end of the contact action block 83 is provided with a slot 83-a for the transverse section 63 to pass through. Such a configuration enables the reset component 8 to control the shape change of the moving contact piece 6, that is, the bending section 62 is bent or reset under the movement of the reset component 8, thereby achieving energized contact or de-energized non-contact with the static contact piece 7.

[0027] The slot 83-a includes a semi-enclosing wall 83-a1 and an interlaced space 83-a2 defined within the semi-enclosing wall 83-a1 and allowing the transverse section 63 to pass through. The upper inner surface of the semi-enclosing wall 83-a1 serves as a pressing structure 83-a11 that keeps the static contact 71 and the moving contact 63-a in contact when power is on, and the lower inner surface serves as a lifting structure 83-a12 that releases the static contact 71 and the moving contact 63-a from contact when power is off. Such a setting not only meets the passing requirement of the transverse section 63, but also does not limit the width of the transverse section 63, that is, the semi-enclosing wall 83-a1 is used to make the slot 83-a have a side opening in the contact action block 83, and the side opening is used to make the transverse section 63 The portion of the lateral section 63 that is larger than the width of the slot 83-a can extend outward, and at the same time, the semi-enclosing wall 83-a1 also uses its own upper inner surface and lower inner surface as a downward pressure structure 83-a11 and a lifting structure 83-a12. The function of the downward pressure structure 83-a11 is to use the upper inner surface to contact the upper surface of the lateral section 63 when power is on, so as to press down the lateral section 63, thereby resetting the shape of the bending section 62. The function of the lifting structure 83-a12 is to use the lower inner surface to contact the lower surface of the lateral section 63 when power is off, so as to lift the lateral section 63, and at the same time cause the bending section 62 to bend so that the lateral section 63 is tilted upward.

[0028] The distance between the pressing structure 83-a11 and the lifting structure 83-a12 is greater than the thickness of the transverse section 63. Such a setting has a buffering effect, that is, it appropriately buffers the elastic strength of the spring set on the reset rod 82 during reset, thereby reducing the impact damage to the bending section 62, reducing fatigue strength, and extending service life.

[0029] The upper inner surface of the pressing structure 83-a11 and the lower inner surface of the lifting structure 83-a12 are both inclined surfaces inclined from the lower left to the upper right. Such an arrangement enables the bending angle of the transverse section 63 to be consistent with the inclination angle of the inclined surface of the lifting structure 83-a12 after the movable contact piece 6 is lifted and bent by the lifting structure 83-a12. In this way, when power is turned on, that is, when the pressing structure 83-a11 contacts the transverse section 63 (the inclination angles of the upper inner surface and the lower inner surface are consistent), they can fit with the surface of the transverse section 63 to achieve full contact, so that in the process of pressing the transverse section 63 down to contact the static contact point 71 of the static contact piece 7, the resetting effect of the bending section 62 is good.

[0030] An extension block 83-b is provided on the right side surface of the contact action block 83 to be combined with the downward pressing structure 83-a11. Such a setting is used to increase the contact area when the horizontal section 63 is pressed downward, so as to ensure the power-on stability of the moving contact piece 6 and the static contact piece 7, while also ensuring the resetting effect of the bending section 62.

[0031] The zero-sequence mutual inductor 9 is arranged at the center position of the universal structural seat 31 and is adjacent to the reset assembly 8. Such an arrangement enables the high-voltage line 101 and the signal line 102 to be fixed separately on the left and right, and no longer be arranged in parallel, so that the common mode / differential mode of the magnetic field generated after power-on will not interfere with the signal, reducing the interference of the high-voltage line 101 on the signal line 102. At the same time, the wires during wiring are shorter, saving more materials.

[0032] A first card slot 21, a second card slot 22, and a third card slot 23 for wiring are provided between the bottom and the side of the middle cover plate 32. The three card slots are all used for clamping the wires. Such a configuration makes it more convenient to clamp the wires 20, and at the same time, the wires 20 are fixed more orderly, the assembly is more convenient, and the wires are not easy to spread out.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A leakage protection socket, comprising a base box (1), an outer cover plate (2) and a socket mechanism (3), wherein the socket mechanism (3) is arranged in the base box (1), the outer cover plate (2) covers the socket mechanism (3) and is combined with the base box (1), the socket mechanism (3) comprises a universal structure seat (31), and a middle cover plate (32) combined with the universal structure seat (31), and a two-plug structure (4), a three-plug structure (5), a moving contact piece (6), a static contact piece (7), and a zero-sequence mutual inductor (9) are clamped in the universal structure seat (31), characterized in that: A movable reset component (8) is also clamped, the reset component (8) comprising an integrally formed reset button (81), a reset rod (82), and two contact action blocks (83); the upper section of the reset button (81) is movably arranged on the outer cover plate (2), and the lower section is used to arrange the contact action block (83); the reset rod (82) is arranged on the bottom surface of the reset button (81) and moves in the universal structure seat (31); the contact action block (83) is used to arrange the movable contact piece (6) so as to move through the reset rod (82) so that the movable contact piece (6) and the static contact piece (7) are electrically in contact or electrically out of contact.

2. The leakage protection socket according to claim 1, characterized in that: The movable contact piece (6) is configured as a sheet-like component, the diameter of which is bent to form a longitudinal section (61), a bent section (62), and a transverse section (63); the longitudinal section (61) is snap-connected to the universal structure seat (31); the bent section (62) is inverted on the universal structure seat (31); and the transverse section (63) is disposed on the contact action block (83) and has a movable contact point (63-a) in contact with a static contact point (71) of the static contact piece (7).

3. The leakage protection socket according to claim 2, characterized in that: The lower end of the contact action block (83) is provided with a slot (83-a) for the transverse section (63) to pass through.

4. The leakage protection socket according to claim 3, characterized in that: The slot (83-a) includes a semi-enclosing wall (83-a1) and an interpenetrating space (83-a2) defined within the semi-enclosing wall (83-a1) and allowing the transverse section (63) to pass through, the upper inner surface of the semi-enclosing wall (83-a1) serving as a pressing structure (83-a11) for keeping the static contact (71) and the moving contact (63-a) in contact when power is on, and the lower inner surface serving as a lifting structure (83-a12) for releasing the static contact (71) and the moving contact (63-a) from contact when power is off.

5. The leakage protection socket according to claim 4, characterized in that: The distance between the pressing-down structure (83-a11) and the lifting structure (83-a12) is greater than the thickness of the transverse section (63).

6. The leakage protection socket according to claim 5, characterized in that: The upper inner surface of the pressing structure (83-a11) and the lower inner surface of the lifting structure (83-a12) are both inclined surfaces sloping from the lower left to the upper right.

7. The leakage protection socket according to claim 6, characterized in that: An extension block (83-b) for combining with the pressing structure (83-a11) is provided on the right side surface of the contact action block (83).

8. The leakage protection socket according to claim 1, characterized in that: The zero-sequence mutual inductor (9) is arranged at a central position of the universal structural seat (31) and adjacent to the reset component (8).

9. The leakage protection socket according to claim 1, characterized in that: A first card slot (21), a second card slot (22), and a third card slot (23) for routing wires are provided between the bottom and the side of the middle cover plate (32).

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