CN211208735U - Socket with overload protection - Google Patents

Abstract

A socket with overload protection comprises a shell, wherein a jack and a reset hole are formed in the shell, an overload protection assembly and a plug bush assembly are arranged in the shell, the overload protection assembly comprises a movable contact assembly and an operation assembly, the movable contact assembly comprises a movable contact piece formed by a bimetallic strip, the fixed end of the movable contact piece is fixed in the shell, a movable contact is arranged at the movable end of the movable contact piece, and one plug bush of the plug bush assembly is used as a static contact piece provided with a static contact; the operation assembly of the overload protection assembly comprises a moving part and an elastic part, one end of the moving part can penetrate through the reset hole and extend out of the shell, the other end of the moving part is provided with an isolation part which can extend into the space between the movable contact and the fixed contact, the elastic part deforms to enable the moving part to do telescopic motion in the shell and the reset hole, and the isolation part enters or leaves the space between the movable contact and the fixed contact along with the telescopic motion of the moving part. The utility model discloses a take overload protection's socket occupies that the space is less and can not be because of the welding point high temperature.

Description

Socket with overload protection

Technical Field

The utility model relates to a socket, concretely relates to take overload protection's socket.

Background

At present, the overload protection device in the fixed socket with overload protection on the market is usually made into a module, the overload protection device is usually in a packaged form and is connected with a circuit in a soldering form, and the structure and the connection mode have the following defects that firstly, a closed structure occupies a larger space in the socket and is not beneficial to the reduction of the socket; secondly, the temperature on a soldering point is higher than that of the whole circuit in the use process of the product by adopting a soldering connection mode, and the potential safety hazard exists when local high temperature is generated on the circuit of the product.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, occupation space is less takes overload protection's socket.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a socket with overload protection comprises a shell, wherein a jack and a reset hole are formed in the shell, an overload protection assembly and a plug bush assembly which corresponds to the jack are arranged in the shell, the overload protection assembly comprises a movable contact assembly and an operation assembly, the movable contact assembly comprises a movable contact piece formed by a bimetallic strip, the fixed end of the movable contact piece is fixed in the shell, a movable contact is arranged at the movable end of the movable contact piece, and one plug bush of the plug bush assembly is used as a static contact piece and is provided with a static contact matched with the movable contact; the operation assembly of the overload protection assembly comprises a moving part and an elastic part, one end of the moving part can penetrate through the reset hole and extend out of the shell, the other end of the moving part is provided with an isolation part which can extend into the space between the movable contact and the fixed contact, the elastic part deforms to enable the moving part to do telescopic motion in the shell and the reset hole, and the isolation part enters or leaves the space between the movable contact and the fixed contact along with the telescopic motion of the moving part.

Further, when the movable contact is in contact with the fixed contact, the isolation part leaves between the movable contact and the fixed contact and is limited by the movable contact, and the elastic part stores energy and enables the movable part to contract; when the movable contact piece is overloaded, the movable contact piece is bent to separate the movable contact piece from the fixed contact, the movable contact piece releases the limit of the isolation part, the elastic piece releases energy to enable the movable part to extend out of the reset hole, and the isolation part extends into the space between the movable contact piece and the fixed contact.

Furthermore, the shell comprises a base and a cover body arranged on the base, the jack and the reset hole are arranged on the cover body, the movable contact and the fixed contact are both arranged perpendicular to the cover body, and the movable part makes telescopic motion between the cover body and the base under the deformation action of the elastic part; when the movable contact is in contact with the fixed contact, the isolation part is positioned on one side close to the base, and the lower side of the movable contact is in contact with the upper side of the isolation part to limit the isolation part.

Furthermore, the moving part is arranged on one side of the moving contact component, one end of the moving part, which is close to the base, is provided with a mounting groove for mounting the elastic part, and one side of the mounting groove is provided with an isolation part.

Further, moving part integrated into one piece, the one end that the moving part is close to the lid is cylindrical, and the moving part is close to the whole outside protrusion of base one end and forms the rectangle arch, the rectangle arch is equipped with a rectangle recess as the mounting groove, the one end and the mounting groove of elastic component are connected, and the other end is connected with the base, and the outside salient isolation portion that is equipped with of a bellied lateral wall of rectangle.

Furthermore, the isolating part is a plate-shaped structure perpendicular to the rectangular protrusion, the isolating part is arranged on one side of the rectangular protrusion close to the base, the thickness of the isolating part is far smaller than that of the rectangular protrusion, and the diameter of the isolating part is larger than or equal to that of a contact surface of the movable contact and the fixed contact when the movable contact and the fixed contact are in contact.

Further, the static contact is formed by a plug bush of buckling into the zigzag, and two live wire jacks are respectively regarded as at the both ends of static contact, and the static contact sets up in the middle part of static contact and is close to the district of buckling of static contact.

Further, the static contact comprises a first section of the static contact, a second section of the static contact and a third section of the static contact which are sequentially connected in a bending way, and the static contact is arranged on the first section of the static contact and is close to a bending area of the first section of the static contact and the second section of the static contact; the moving contact component also comprises a first connecting piece, the first connecting piece comprises a first connecting arm and a U-shaped body, the first end of the first connecting arm is connected with one side arm of the U-shaped body, the middle part of the first connecting arm is connected with the fixed end of the moving contact piece, the other end of the first connecting arm is fixed in the shell, and the moving contact piece is parallel to the first section of the static contact piece; the middle part of U-shaped body is equipped with the connecting portion that are used for being connected with the live wire, and the middle part of U-shaped body is parallel with static contact second section, forms the space that holds the moving part between the middle part of U-shaped body and static contact second section.

Furthermore, a second connecting piece is arranged in the shell, the second connecting piece is a plug bush connected with the zero line, and two ends of the second connecting piece are respectively used as two zero line jacks; the two ends of the static contact piece are respectively used as two live wire jacks, and the movable contact piece is connected with a live wire.

Furthermore, the base is provided with three wiring holes, three conductive pieces connected with the zero line, the live wire and the ground wire are arranged in the wiring holes, the movable contact assembly is connected with the live wire through the conductive pieces, and the second connecting piece is connected with the zero line through the conductive pieces.

The utility model discloses a take overload protection's socket, its overload protection subassembly directly sets up in the casing, adopts the movable contact spring that bimetallic strip formed, adopts a plug bush as the static contact, and sets up the moving part and can get into and carry out isolation protection between movable contact and the static contact, and the space that occupies in the casing is less, and simultaneously, product assembly is simple, promotes production efficiency.

In addition, the spacing of the elastic element and the moving contact is utilized to ensure that the isolation part can stretch into or leave a gap between the moving contact and the fixed contact, and an indication effect is provided according to the condition that the moving element stretches out of the reset hole; the wiring mode of the movable contact spring can be connected with an external lead through the first connecting piece, and can also be directly connected with the external lead, so that the application range is wide; the movable contact and the fixed contact are formed by riveting and pressing silver points, so that the conductivity is enhanced, and the misoperation caused by poor conductivity is avoided. And the circuit is connected in a circuit without a soldering mode, so that potential safety hazards caused by overhigh temperature of a welding point in the use process can be avoided.

Drawings

Fig. 1 is a schematic structural diagram of a socket with overload protection according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a socket with overload protection according to the present invention;

fig. 3 is a schematic diagram illustrating the moving contact assembly, the plug bush assembly and the operating assembly of the socket with overload protection according to the present invention;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a side view of FIG. 3 (without the movable contact piece and movable contact);

fig. 7 is a schematic view of the movable contact assembly and the plug bush assembly of the socket with overload protection according to the present invention;

fig. 8 is a schematic structural diagram of a movable contact assembly of a socket with overload protection according to the present invention;

fig. 9 is a schematic structural view of a first connecting member of a socket with overload protection according to the present invention;

fig. 10 is a schematic view of an overload protection assembly of a socket with overload protection according to the present invention.

Detailed Description

The following describes a specific embodiment of the socket with overload protection according to the present invention with reference to the embodiments shown in fig. 1 to 10. The socket with overload protection of the present invention is not limited to the description of the following embodiments.

A socket with overload protection comprises a shell, wherein a jack and a reset hole 14 are arranged on the shell, an overload protection assembly and a plug bush assembly are arranged in the shell, the overload protection assembly protects a movable contact assembly and an operation assembly, the movable contact assembly comprises a movable contact piece 2 formed by bimetallic strips, the fixed end of the movable contact piece 2 is fixed in the shell, a movable contact 21 is arranged at the movable end of the movable contact piece 2, and one plug bush of the plug bush assembly is provided with a fixed contact 31 matched with the movable contact 21 as a fixed contact piece 3; the overload protection assembly includes a movable element 41 and an elastic element 42, one end of the movable element 41 close to the cover body can pass through the reset hole 14 and extend out of the housing, the movable element 41 is provided with an isolation portion 44 which can extend into the space between the movable contact 21 and the fixed contact 31, the elastic element 42 deforms to enable the movable element 41 to make telescopic motion in the housing and the reset hole 14, and the isolation portion 44 enters or leaves the space between the movable contact 21 and the fixed contact 31 along with the telescopic motion of the movable element 41.

The utility model discloses a take overload protection's socket, its overload protection subassembly directly sets up in the casing, adopts the movable contact 2 that bimetallic strip formed, adopts a plug bush as static contact 3, and sets up moving part 41 and can get into and keep apart the protection between movable contact 21 and the static contact 31, and the space that occupies in the casing is less, and simultaneously, the product assembly is simple, promotes production efficiency.

As shown in fig. 1 and 2, a socket with overload protection comprises a housing formed by a base 11 and a cover, the cover is mounted on the base 11, the housing is provided with a jack and a reset hole 14, an overload protection assembly and a plug bush assembly arranged corresponding to the jack are arranged in the housing, the overload protection assembly comprises a movable contact assembly and an operation assembly, the movable contact assembly comprises a movable contact piece 2 formed by a bimetallic strip, a fixed end of the movable contact piece 2 is fixed in the housing, a movable end of the movable contact piece 2 is provided with a movable contact 21, and one plug bush of the plug bush assembly is provided with a fixed contact 31 matched with the movable contact 21 as a fixed contact piece 3; the operating component of the overload protection component comprises a movable piece 41 and an elastic piece 42, one end of the movable piece 41 close to the cover body can pass through the reset hole 14 and extend out of the shell, the movable piece 41 is provided with an isolating part 44 which can extend into the space between the movable contact 21 and the fixed contact 31, the elastic piece 42 deforms to enable the movable piece 41 to do telescopic motion in the shell and the reset hole 14, and the isolating part 44 enters or leaves the space between the movable contact 21 and the fixed contact 31 along with the telescopic motion of the movable piece 41.

As shown in fig. 1, the cover body includes an outer cover 12 and an inner cover 13, the cover body is rectangular overall, the outer cover 12 is larger than the inner cover 13, a limiting structure for limiting components in the housing is generally disposed on one side of the inner cover 13 close to the base 11, and correspondingly, a limiting structure is also cooperatively disposed on one side of the base 11 close to the cover body.

When the movable contact 21 contacts with the fixed contact 31, the circuit is normally connected, the isolating part 44 leaves between the movable contact 21 and the fixed contact 31 and is limited by the fixed contact 21, the elastic element 42 stores energy to enable the movable element 41 to contract, and the plug bush assembly is electrified; when the current in the circuit is too large and overload occurs, the movable contact piece 2 deforms so that the movable contact 21 is separated from the fixed contact 31, the limit of the movable contact piece 2 on the isolating part 44 is relieved, the elastic piece 42 releases energy to enable the movable piece 41 to extend out of the reset hole 14, and the isolating part 44 extends into a position between the movable contact 21 and the fixed contact 31 to isolate the movable contact 21 and the fixed contact 31; when the circuit is restored to normal, the movable contact piece 2 is restored to its original state, and at this time, the movable contact 21 and the fixed contact 31 should be in contact, but the movable contact and the fixed contact cannot be in contact due to the separation of the separation part 44, and the separation part 44 is separated from the space between the movable contact 21 and the fixed contact 31 by pressing the movable piece 41 to overcome the elastic force of the elastic piece 42. After the movable contact 21 contacts the stationary contact 31, the movable contact 2 again limits the distance portion 44. In order to prevent the elastic element 42 from releasing too much energy to move the isolating part 44 out of between the moving contact 21 and the fixed contact 31, a detent part can be arranged on the moving part 41, the detent part can be matched with the reset hole 14, and after the isolating part 44 completely blocks the moving contact 21 and the fixed contact 31, the moving part 41 can not move continuously.

The spacing of the moving contact piece 2 to the isolation part 44 is mainly realized by the change of the distance between the moving contact piece 2 and the static contact piece 3, and an operation component of the overload protection component is arranged at a position which does not interfere the movement of the moving contact piece 2, preferably the operation component is arranged between the moving contact component and the plug bush component.

As a first embodiment, as shown in fig. 1, the insertion hole and the reset hole 14 are disposed on the cover, the movable contact 21 and the fixed contact 31 are both disposed perpendicular to the cover, and the movable element 41 performs a telescopic motion between the cover and the base 11 under the deformation action of the elastic element 42; the partition 44 is located at a side close to the base 11 when the movable contact 21 is in contact with the fixed contact 31, and the partition 44 is preferably limited by the movable contact 21 of the movable contact 2, and the lower side of the movable contact 21 is in contact with the upper side of the partition 44 for limiting the partition 44. Preferably, the movable member 41 is disposed between the movable contact assembly and the socket as the stationary contact 3, a mounting groove 45 for mounting the elastic member 42 is provided at a section of the movable member 41 near the base 11, and a partition 44 is provided at one side of the mounting groove 45.

The movable member 41 is preferably integrally formed, as shown in fig. 10, one end of the movable member 41 close to the cover body is cylindrical, one end of the movable member 41 close to the base 11 integrally protrudes outward to form a rectangular protrusion 43, the rectangular protrusion 43 is provided with a rectangular groove serving as an installation groove 45, one end of the elastic member 42 is connected with the installation groove 45, the other end of the elastic member is connected with the base 11, and one side wall of the rectangular protrusion 43 protrudes outward to form a separation portion 44. Specifically, the isolating part 44 is a plate-shaped structure perpendicular to the rectangular protrusion 43, the isolating part 44 is disposed on one side of the rectangular protrusion 43 close to the base 11, the thickness of the isolating part 44 is much smaller than that of the rectangular protrusion 43, and the diameter of the isolating part 44 is greater than or equal to the diameter of the contact surface of the movable contact 21 and the stationary contact 31 when the movable contact and the stationary contact are in contact. Of course, the shape of the partition 44 is not limited to a rectangular shape, and may be a circular shape, a trapezoidal shape, or other irregular shapes.

Compared with the first embodiment, the lower side of the isolation portion 44 may also contact with the upper side of the movable contact 21 for limiting, and the moving direction of the movable element 41 is opposite to the moving direction of the first embodiment, that is, when the movable contact 21 is separated from the fixed contact 31, the movable element 41 moves towards the direction close to the base 11 under the driving of the elastic element 42; after the circuit is restored to normal, the movable element 41 needs to be pulled toward the cover body side to separate the isolation portion 44 from between the movable contact 21 and the stationary contact 31.

As another embodiment (not shown in the figures), the jack and the reset hole 14 are both disposed on the cover, the reset hole 14 is a strip-shaped hole, the operating component is still disposed between the moving contact assembly and the plug bush assembly, the moving contact 21 and the stationary contact 31 are still disposed perpendicular to the cover and in the housing, at this time, the moving direction of the moving element 41 under the deformation action of the elastic element 42 is perpendicular to the moving direction of the moving contact 2, the isolation portion 44 of the moving element 41 and the elastic element 42 are preferably disposed opposite to each other, one end of the elastic element 42 is connected to the inner side wall of the housing, and the other end is connected to the moving element 41 for pushing the moving element 41 to horizontally extend and retract in the housing and the reset; when the moving contact 21 contacts with the fixed contact 31, the isolation part 44 is limited with one side of the moving contact 21, at the moment, the elastic element 42 stores energy, however, when the moving contact 2 deforms due to overlarge current, the moving contact 21 is separated from the fixed contact 31, the limit of the moving contact 21 to the isolation part 44 is released, the elastic element 42 releases energy to push the moving element 41 to move horizontally, and therefore the isolation piece extends into the space between the moving contact 21 and the fixed contact 31 to isolate the moving contact 21 and the fixed contact 31; when the circuit is restored to normal, the movable contact 2 is restored to the original state, and after the movable piece 41 is pushed to overcome the elastic force of the elastic piece 42 to enable the isolation part 44 to be separated from the space between the movable contact 21 and the fixed contact 31, the movable contact 21 is contacted with the fixed contact 31 again, and the movable contact 21 limits the isolation part 44 again.

It should be noted that the movable contact 21 and the fixed contact 31 are formed by riveting silver points, so that the conductivity is enhanced, and the movable contact 2 is prevented from generating misoperation due to high temperature caused by poor conductivity. The elastic force provided by the elastic member 42 to the movable member may be a tensile force, a compressive force, or the like.

As shown in fig. 1 and 2, a plurality of jacks are provided, including a jack set for connecting a two-pin plug and a jack set for connecting a three-pin plug, each jack set including a neutral jack and a live jack, and a jack set for connecting a three-pin plug including a ground jack, although the combination of the jack sets is not limited thereto. As shown in fig. 2, 3, 4, 5 and 7, the static contact 3 is formed by a plug bush bent in a zigzag shape, two ends of the static contact 3 are respectively used as two live wire insertion holes, and the static contact 31 is disposed in the middle of the static contact 3 and near the bending area of the static contact 3. The static contact 3 comprises a first section of the static contact, a second section of the static contact and a third section of the static contact which are sequentially connected in a bending mode, and the static contact 31 is arranged on the first section of the static contact and is close to a bending area of the first section of the static contact and the second section of the static contact.

As shown in fig. 8 and 9, the movable contact assembly includes a movable contact piece 2 and a first connecting piece 5, the first connecting piece 5 includes a first connecting arm 51 and a U-shaped body 52, a first end of the first connecting arm 51 is connected with one side arm of the U-shaped body 52, a middle portion of the first connecting arm 51 is connected with a fixed end of the movable contact piece 2, the other end of the first connecting arm 51 is fixed in the housing, and the movable contact piece 2 is parallel to a first section of the static contact piece; the middle part of U-shaped body 52 is equipped with the connecting portion that are used for being connected with the live wire, and the middle part of U-shaped body 52 is parallel with the second section of static contact, forms the space that holds moving part 41 between the middle part of U-shaped body 52 and the second section of static contact, makes the overall structure of socket compacter. The first connecting piece 5 may also be formed by a sleeve; of course, the movable contact component can also be directly connected with the live wire without the first connecting piece 5. Specifically, as shown in fig. 2, a second connecting piece 6 is arranged in the housing, the second connecting piece 6 is a plug bush connected with the zero line, and two ends of the second connecting piece 6 are respectively used as two zero line jacks; the static contact 3 is formed by a plug bush, two ends of the static contact 3 are respectively used as two live wire jacks, and the movable contact 2 is connected with a live wire. The base 11 is provided with three wiring holes, three conductive pieces 7 respectively connected with a zero line, a live wire and a ground wire are arranged in the wiring holes, the movable contact assembly is connected with the live wire through the conductive pieces 7, and the second connecting piece 6 is connected with the zero line through the conductive pieces 7.

The socket is integrally connected with the connecting piece through the conductive pieces, the socket is not required to be connected in a circuit in a soldering mode, and potential safety hazards caused by overhigh temperature of a welding point in the using process can be avoided.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (10)

1. The utility model provides a take overload protection's socket, includes the casing, be equipped with jack and reset hole (14) on the casing, its characterized in that: an overload protection assembly and a plug bush assembly which corresponds to the jack are arranged in the shell, the overload protection assembly comprises a movable contact assembly and an operation assembly, the movable contact assembly comprises a movable contact piece (2) formed by a bimetallic strip, the fixed end of the movable contact piece (2) is fixed in the shell, the movable end of the movable contact piece (2) is provided with a movable contact (21), one plug bush of the plug bush assembly is used as a static contact piece (3) and is provided with a static contact (31) matched with the movable contact (21); the operation assembly of the overload protection assembly comprises a movable piece (41) and an elastic piece (42), one end of the movable piece (41) can penetrate through a reset hole (14) and extend out of the shell, an isolating part (44) which can extend into a position between the movable contact (21) and the fixed contact (31) is arranged at the other end of the movable piece (41), the elastic piece (42) deforms to enable the movable piece (41) to do telescopic motion in the shell and the reset hole (14), and the isolating part (44) enters or leaves a position between the movable contact (21) and the fixed contact (31) along with the telescopic motion of the movable piece (41).

2. A socket with overload protection according to claim 1, wherein: when the movable contact (21) is contacted with the fixed contact (31), the isolating part (44) leaves between the movable contact (21) and the fixed contact (31) and is limited by the movable contact (2), and the elastic element (42) stores energy and enables the movable element (41) to contract; when the overload happens, the movable contact (2) bends to separate the movable contact (21) from the fixed contact (31), the movable contact (2) releases the limit of the isolating part (44), the elastic piece (42) releases the energy to enable the movable piece (41) to extend out of the reset hole (14), and the isolating part (44) extends into the space between the movable contact (21) and the fixed contact (31).

3. A socket with overload protection according to claim 2, wherein: the shell comprises a base (11) and a cover body arranged on the base (11), the jack and the reset hole (14) are arranged on the cover body, the movable contact (21) and the fixed contact (31) are both arranged perpendicular to the cover body, and the movable part (41) makes telescopic motion between the cover body and the base (11) under the deformation action of the elastic part (42); when the moving contact (21) is contacted with the fixed contact (31), the isolating part (44) is positioned at one side close to the base (11), and the lower side of the moving contact (21) is contacted with the upper side of the isolating part (44) for limiting the isolating part (44).

4. A socket with overload protection according to claim 2, wherein: the movable piece (41) is arranged on one side of the movable contact assembly, one end, close to the base (11), of the movable piece (41) is provided with an installation groove (45) used for installing the elastic piece (42), and one side of the installation groove (45) is provided with an isolation part (44).

5. A socket with overload protection according to claim 2, wherein: moving part (41) integrated into one piece, moving part (41) are cylindrical near the one end of lid, and moving part (41) are close to base (11) one end whole outside protrusion formation rectangle arch (43), rectangle arch (43) are equipped with a rectangle recess as mounting groove (45), the one end and the mounting groove (45) of elastic component (42) are connected, and the other end is connected with base (11), and the outside salient isolation part (44) that is equipped with of lateral wall of rectangle arch (43).

6. A socket with overload protection according to claim 5, wherein: the isolating part (44) is of a plate-shaped structure perpendicular to the rectangular protrusion (43), the isolating part (44) is arranged on one side, close to the base (11), of the rectangular protrusion (43), the thickness of the isolating part (44) is far smaller than that of the rectangular protrusion (43), and the diameter of the isolating part (44) is larger than or equal to that of a contact surface of the movable contact (21) and the fixed contact (31) when the movable contact and the fixed contact are in contact.

7. A socket with overload protection according to claim 1, wherein: static contact (3) are formed by a plug bush of buckling into the zigzag, and two live wire jacks are regarded as respectively at the both ends of static contact (3), and static contact (31) set up in the middle part of static contact (3) and are close to the bending region of static contact (3).

8. A socket with overload protection according to claim 7, wherein: the static contact (3) comprises a first section of the static contact, a second section of the static contact and a third section of the static contact which are sequentially connected in a bending way, and the static contact (31) is arranged on the first section of the static contact and is close to a bending area of the first section of the static contact and the second section of the static contact; the moving contact component further comprises a first connecting piece (5), the first connecting piece (5) comprises a first connecting arm (51) and a U-shaped body (52), the first end of the first connecting arm (51) is connected with one side arm of the U-shaped body (52), the middle part of the first connecting arm (51) is connected with the fixed end of the moving contact piece (2), the other end of the first connecting arm (51) is fixed in the shell, and the moving contact piece (2) is parallel to the first section of the static contact piece; the middle part of U-shaped body (52) is equipped with the connecting portion that are used for being connected with the live wire, and the middle part of U-shaped body (52) is parallel with static contact second section, forms the space that holds moving part (41) between the middle part of U-shaped body (52) and static contact second section.

9. A socket with overload protection according to claim 3, wherein: a second connecting piece (6) is arranged in the shell, the second connecting piece (6) is a plug bush connected with a zero line, and two ends of the second connecting piece (6) are respectively used as two zero line jacks; two ends of the static contact piece (3) are respectively used as two live wire jacks, and the movable contact piece (2) is connected with a live wire.

10. A socket with overload protection according to claim 9, wherein: the base (11) is provided with three wiring holes, three conductive pieces (7) which are respectively connected with the zero line, the live wire and the ground wire are arranged in the wiring holes, the movable contact assembly is connected with the live wire through the conductive pieces (7), and the second connecting piece (6) is connected with the zero line through the conductive pieces (7).

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