Anti-overload switch socket

Abstract

The utility model relates to the technical field of switch sockets, and provides an anti-overload switch socket, which comprises a packaging shell, a power connection piece, a power receiving piece and an overload protection assembly, the thermal bimetallic strip with elastic and thermal deformation functions is used as a conductive bridge to connect the L-pole incoming line insertion piece and the power receiving piece, so that on one hand, a conductive loop communicated between the power connection piece and the power receiving piece is supported; on the other hand, when the socket is overloaded, thermal deformation of the thermal bimetallic strip is used for being far away from the second conductive end, at the moment, circuit connection between the power connection piece and the power receiving piece is disconnected, the socket circuit is in an open-circuit protection state, and overload protection is achieved; the key switch and the button spring which are installed in a combined mode are arranged, when the socket is overloaded, the thermal bimetallic strip thermally deforms to be away from the second conductive end, the connecting window breaks away from the limitation of the first conductive end, and the key switch pops up under the reset potential energy of the button spring, so that the insulating partition plate is inserted between the second conductive end and the first conductive end; and overload indication is carried out while overload partition protection is carried out.

Description

Technical Field

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

[0002] A socket, also known as a power socket or a switch socket, refers to a socket into which one or more circuit wiring can be inserted. Through it, various wirings can be inserted, which is convenient for connecting with other circuits. By connecting and disconnecting between the circuit and the copper parts, the on and off of this part of the circuit can be finally achieved.

[0003] A switch socket is a socket that can conveniently control the on and off of a power circuit.

[0004] During the use of electrical equipment, it is necessary to plug the plug of the electrical equipment into the socket to make the electrical equipment work with power on. However, as the electrical appliances connected to the socket gradually increase, the load of the socket will increase, and the existing sockets lack protection devices, which are prone to potential safety hazards. Summary of the Invention

[0005] The utility model provides an overload protection switch socket, which solves the technical problem that the existing switch socket lacks an overload protection structure and has potential safety hazards.

[0006] To solve the above technical problems, the utility model provides an overload protection switch socket, which includes a packaging shell, a power connection component, a power receiving component, and an overload protection component; the power receiving component is arranged in the middle of the inner cavity of the packaging shell, and a second conductive end in contact with the power connection component is arranged on one side; one end of the power connection component is connected to an external power supply, and the other end is an elastic connection piece, and a first conductive end is arranged on the elastic connection piece facing the power receiving component; the overload protection component is movably inserted on the packaging shell, and its lower part is embedded between the second conductive end and the first conductive end.

[0007] During normal operation, the first conductive end passes through the overload protection component and is in close contact with the second conductive end; when the socket is overloaded, the elastic connection piece deforms, the first conductive end moves away from the second conductive end, and the overload protection component resets upward to cut off the second conductive end and the first conductive end, disconnecting the circuit connection between the power connection component and the power receiving component, and the socket circuit is in an open circuit protection state.

[0008] In a further embodiment, the overload protection component includes a key switch and a button spring. One end of the button spring is embedded in the packaging shell, and the other end abuts against the bottom of the key switch; the lower part of the key switch is movably inserted into the packaging shell and abuts against the button spring, and the upper part is limited and installed on the packaging shell.

[0009] In a further embodiment, the upper part of the push-button switch is a button touch surface, the middle part is a horizontal connecting plate, and a vertical plate is connected to the back of the connecting plate; a connecting window is provided in the upper part of the vertical plate, the lower part is an insulating partition, and positioning columns are also provided on both sides; the connecting window is a hole penetrating the plate surface; the positioning column is a cylindrical structure, and its bottom abuts against the button spring;

[0010] During normal operation, when the button touch surface is pressed downward, the button spring is compressed, and the first conductive end tightly contacts the second conductive end through the connecting window; when the socket is overloaded, the elastic connecting piece deforms, the first conductive end moves away from the second conductive end, the button spring resets to push up the push-button switch, the insulating partition rises to cut off the second conductive end from the first conductive end, and the circuit connection between the power receiving member and the power receiving member is disconnected, and the socket circuit is in an open circuit protection state.

[0011] In a further embodiment, the lower part of the power receiving member is an L-pole incoming line insert piece connected to an external power supply, and the elastic connecting piece is horizontally installed on the upper part of the L-pole incoming line insert piece; the elastic connecting piece is a thermal bimetal sheet, and a silver riveting point is arranged on the side end facing the power receiving member to form a first conductive end corresponding to the second conductive end.

[0012] In a further embodiment, the power receiving member includes a socket E-pole socket, a socket L-pole socket and a socket N-pole socket; the socket E-pole socket is installed in the middle, and the socket L-pole socket and the socket N-pole socket are respectively arranged on both sides; one end of the socket L-pole socket is bent laterally outward and provided with a silver riveting point to form the second conductive end.

[0013] In a further embodiment, the encapsulation housing includes a protection door bracket, one side of the protection door bracket is provided with an installation groove, the upper part of the installation groove penetrates to form a notch for fitting with the connecting plate, and the lower part extends downward on both sides to form a curved surface structure; the top of the curved surface structure is fixed to the back of the protection door bracket, and the inner side surface is fitted with the positioning column.

[0014] In a further embodiment, the encapsulation housing includes a socket panel and a socket rear seat, and the socket panel, the protection door bracket, and the socket rear seat are sequentially covered and installed; a limiting plate protruding upward is arranged in the inner cavity of the socket rear seat, and an installation column corresponding to the curved surface structure is arranged on one side of the limiting plate; a limiting space is formed between the limiting plates to fixedly install the power receiving member and the power receiving member; the inside of the installation column is hollow to place the button spring, and one side is open to embed the push-button switch.

[0015] In a further embodiment, a relief groove is formed by inward depression on one side wall of the socket panel, and a chamfer is formed by bending at the top of the relief groove.

[0016] The beneficial effects of the present utility model are as follows:

[0017] (1) Based on the overload protection requirements of existing switch sockets, a thermal bimetal sheet with elasticity and thermal deformation function is used as a conductive bridge to connect the L-pole incoming line insert piece and the power receiving component. On the one hand, it supports connecting the conductive loop between the power connecting component and the power receiving component; on the other hand, when the socket is overloaded, the thermal bimetal sheet thermally deforms away from the second conductive end. At this time, the circuit connection between the power connecting component and the power receiving component is disconnected, and the socket circuit is in an open circuit protection state, realizing overload protection.

[0018] (2) A combined installation push-button switch and a button spring are provided. When the push-button switch is pressed, the button spring is pressed to be in a compressed state. At this time, the first conductive end tightly contacts the second conductive end through the connection window of the push-button switch, realizing the energization of the socket; when the socket is overloaded, the thermal bimetal sheet thermally deforms away from the second conductive end, and the connection window is released from the restriction of the first conductive end. The push-button switch pops up upward under the reset potential energy of the button spring, so that the insulating partition is inserted between the second conductive end and the first conductive end, performing overload isolation protection and overload indication at the same time, thereby effectively reminding the user to remove the overload; at the same time, after the overload is removed, the corresponding switch socket will only be re-conducted after the overload is removed and the push-button switch is manually pressed, further improving the safety of the socket.

[0019] (3) A chamfer formed by bending is provided at the top of the relief groove to assist the installation of the push-button switch and is also beneficial for performing operations on the push-button switch. Description of the Drawings

[0020] Figure 1 is an exploded view of an overload protection switch socket provided by an embodiment of the present utility model;

[0021] Figure 2 is a three-dimensional structure diagram of the push-button switch 3 provided by an embodiment of the present utility model;

[0022] Figure 3 is a working schematic diagram of a part of the structure provided by an embodiment of the present utility model;

[0023] Figure 4 is an assembly schematic diagram provided by an embodiment of the present utility model;

[0024] Figure 5 is a normal working sectional view provided by an embodiment of the present utility model;

[0025] Figure 6 is an overload protection sectional view provided by an embodiment of the present utility model.

[0026] Wherein: encapsulation housing A, overload protection component B;

[0027] Power connection part 1, elastic connection piece 11, first conductive end 12, L-pole incoming line insert piece 13; power receiving part 2, second conductive end 21, socket E-pole socket 22, socket L-pole socket 23, socket N-pole socket 24; button switch 3, button touch surface 31, connecting plate 32, vertical plate 33; button spring 4; protection door bracket 5, notch 51, curved surface structure 52; socket panel 6, relief groove 61; socket rear seat 7, limit plate 71, mounting post 72; connection window a, insulating partition b, positioning post c. Detailed implementation method

[0028] The following specifically clarifies the implementation manner of the present invention in conjunction with the drawings. The given examples are only for illustrative purposes and should not be construed as a limitation of the present invention. The drawings are only for reference and explanation and do not constitute a limitation on the scope of patent protection of the present invention, because many changes can be made to the present invention without departing from the spirit and scope of the present invention.

[0029] An overload protection switch socket provided by an embodiment of the present invention, as Figures 1 to 6 shown. In this embodiment, it includes a packaging shell A, a power connection part 1, a power receiving part 2, and an overload protection component B; the power receiving part 2 is arranged in the middle of the inner cavity of the packaging shell A, and a second conductive end 21 in contact with the power connection part 1 is provided on one side; one end of the power connection part 1 is connected to an external power supply, and the other end is an elastic connection piece 11, and a first conductive end 12 is arranged on the elastic connection piece 11 facing the power receiving part 2; the overload protection component B is movably inserted on the packaging shell A, and its lower part is embedded between the second conductive end 21 and the first conductive end 12;

[0030] During normal operation, the first conductive end 12 passes through the overload protection component B and is in close contact with the second conductive end 21; when the socket is overloaded, the elastic connection piece 11 deforms, the first conductive end 12 moves away from the second conductive end 21, and the overload protection component B moves upward under the driving force of the ejection force of the button spring 4 to cut off the connection between the second conductive end 21 and the first conductive end 12, and the socket circuit is in an open circuit protection state.

[0031] In this embodiment, the overload protection component B includes a button switch 3 and a button spring 4. One end of the button spring 4 is embedded in the packaging shell A, and the other end abuts against the bottom of the button switch 3; the lower part of the button switch 3 is movably inserted into the packaging shell A and abuts against the button spring 4, and the upper part is limitedly installed on the packaging shell A.

[0032] In this embodiment, refer to Figure 2, the upper part of the push-button switch 3 is the button touch surface 31, the middle part is the horizontal connecting plate 32, and the back of the connecting plate 32 is connected with a vertical plate 33; a connecting window a is opened in the upper part of the vertical plate 33, the lower part is an insulating partition b, and positioning columns c are also arranged on both sides; the connecting window a is a hole penetrating the plate surface; the positioning column c is of a cylindrical structure, and its bottom abuts against the button spring 4;

[0033] Refer to Figure 3 Figure I of, when working normally, press the button touch surface 31 downward, the button spring 4 is compressed, and the first conductive end 12 tightly contacts the second conductive end 21 through the connecting window a; Refer to Figure 3 Figure II of, when the socket is overloaded, the elastic connecting piece 11 deforms, the first conductive end 12 moves away from the second conductive end 21, the button spring 4 resets and pushes up the push-button switch 3, the insulating partition b rises to cut off the second conductive end 21 and the first conductive end 12, and the circuit connection between the power receiving member 1 and the power receiving member 2 is disconnected, and the socket circuit is in an open-circuit protection state.

[0034] In this embodiment, the lower part of the power receiving member 1 is an L-pole incoming line insert piece 13 connected to an external power supply, and an elastic connecting piece 11 is horizontally installed on the upper part of the L-pole incoming line insert piece 13; the elastic connecting piece 11 is a thermal bimetal sheet, and a silver riveting point is arranged on the end facing the side of the power receiving member 2 to form a first conductive end 12 corresponding to the second conductive end 21.

[0035] In this embodiment, the power receiving member 2 includes a socket E-pole socket 22, a socket L-pole socket 23 and a socket N-pole socket 24; the socket E-pole socket 22 is installed in the middle, and the socket L-pole socket 23 and the socket N-pole socket 24 are respectively arranged on both sides; one end of the socket L-pole socket 23 bends laterally outward and is provided with a silver riveting point to form a second conductive end 21.

[0036] In this embodiment, the encapsulation housing A includes a protection door bracket 5, one side of the protection door bracket 5 is provided with an installation groove, the upper part of the installation groove penetrates to form a notch 51 for fitting with the connecting plate 32, and the lower part extends downward on both sides to form a curved surface structure 52; the top of the curved surface structure 52 is fixed on the back of the protection door bracket 5, and the inner side surface is fitted with the positioning column c.

[0037] In this embodiment, the encapsulation housing A includes a socket panel 6 and a socket rear seat 7, and the socket panel 6, the protection door bracket 5, and the socket rear seat 7 are sequentially covered and installed; a limiting plate 71 protruding upward is arranged in the inner cavity of the socket rear seat 7, and an installation column 72 corresponding to the curved surface structure 52 one by one is arranged on one side of the limiting plate 71; a limiting space is formed between the limiting plates 71 to fixedly install the power receiving member 1 and the power receiving member 2; the inside of the installation column 72 is hollow to place the button spring 4, and one side is open to embed the push-button switch 3.

[0038] Refer to Figure 4 Figure I of, Figure 5, during normal operation, the connecting plate 32 of the key switch 3 is nested in the notch 51, the upper part of the positioning post c extends into the curved surface structure 52, and the lower part is nested in the mounting post 72, and the button spring 4 is in a compressed state; the first conductive end 12 protrudes out of the connection window a under the action of the thermal bimetal sheet, and limits the key switch 3 while connecting with the second conductive end 21.

[0039] See Figure 4 II diagram of Figure 6 , when the socket is overloaded, the thermal bimetal sheet undergoes thermal deformation, and the first conductive end 12 moves away from the first conductive end 12 under the action of the thermal bimetal sheet, and the connection window a is released from the restriction of the first conductive end 12. The key switch 3 pops up upward along the mounting post 72 under the reset potential energy of the button spring 4, so that the insulating partition b is inserted between the second conductive end 21 and the first conductive end 12 to perform overload isolation protection and overload indication at the same time.

[0040] After the overload is removed, press the key switch 3, the thermal bimetal sheet deforms and resets, and the first conductive end 12 comes into close contact with the second conductive end 21 on the socket L-pole socket 23 through the connection window a again, realizing the power-on function of the socket.

[0041] In this embodiment, a relief groove 61 is formed by inward depression of one side wall of the socket panel 6, and a chamfer is formed by bending the top of the relief groove 61.

[0042] The beneficial effects of the embodiments of the present invention are as follows:

[0043] (1) Based on the overload protection requirements of existing switch sockets, a thermal bimetal sheet with elasticity and thermal deformation functions is used as a conductive bridge to connect the L-pole incoming line insert 13 and the power receiving member 2. On the one hand, it supports the conduction of the conductive loop between the power connecting member 1 and the power receiving member 2; on the other hand, when the socket is overloaded, the thermal bimetal sheet thermally deforms away from the second conductive end 21. At this time, the circuit connection between the power connecting member 1 and the power receiving member 2 is disconnected, and the socket circuit is in an open circuit protection state, realizing overload protection.

[0044] (2) The key switch 3 and the button spring 4 are arranged in a combined installation. Press the key switch 3 to compress the button spring 4 so that it is in a compressed state. At this time, the first conductive end 12 comes into close contact with the second conductive end 21 through the connection window a of the key switch 3 to realize the power-on of the socket; when the socket is overloaded, the thermal bimetal sheet thermally deforms away from the second conductive end 21, and the connection window a is released from the restriction of the first conductive end 12. The key switch 3 pops up upward under the reset potential energy of the button spring 4, so that the insulating partition b is inserted between the second conductive end 21 and the first conductive end 12 to perform overload isolation protection and overload indication at the same time, thereby effectively reminding the user to remove the overload; at the same time, after the overload is removed, the corresponding switch socket will only be re-conducted after the overload is removed and the key switch 3 is manually pressed, further improving the safety of the socket.

[0045] (3) A chamfer formed by bending is provided at the top of the clearance groove to assist the installation of the key switch and facilitate the operation of the key switch.

[0046] In this embodiment, the anti-overload structure provided in the switch socket in this embodiment is adaptable to socket hole types of various specifications, including but not limited to American standard, British standard, etc.

[0047] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An overload protection switch socket, characterized in that: It includes a packaging housing, a power connection component, a power receiving component and an overload protection component; the power receiving component is arranged in the middle of the inner cavity of the packaging housing, and a second conductive end in contact with the power connection component is provided on one side; one end of the power connection component is connected to an external power supply, and the other end is an elastic connection piece, and a first conductive end is arranged on the elastic connection piece facing the power receiving component; the overload protection component is movably inserted on the packaging housing, and its lower part is embedded between the second conductive end and the first conductive end. During normal operation, the first conductive end passes through the overload protection component and is in close contact with the second conductive end; when the socket is overloaded, the elastic connection piece deforms, the first conductive end moves away from the second conductive end, the overload protection component resets upward to cut off the second conductive end and the first conductive end, disconnecting the circuit connection between the power connection component and the power receiving component, and the socket circuit is in an open circuit protection state.

2. The overload protection switch socket according to claim 1, characterized in that: The overload protection component includes a key switch and a button spring, one end of the button spring is embedded in the packaging housing, and the other end abuts against the bottom of the key switch; the lower part of the key switch is movably inserted into the packaging housing and abuts against the button spring, and the upper part is limitedly installed on the packaging housing.

3. The overload protection switch socket according to claim 2, characterized in that: The upper part of the key switch is a button touch surface, the middle part is a horizontal connecting plate, and a vertical plate is connected to the back of the connecting plate; a connecting window is opened in the upper part of the vertical plate, the lower part is an insulating partition, and positioning columns are also arranged on both sides; the connecting window is a hole penetrating the plate surface; the positioning column is a cylindrical structure, and its bottom abuts against the button spring. During normal operation, when the button touch surface is pressed down, the button spring is compressed, and the first conductive end passes through the connecting window and is in close contact with the second conductive end; when the socket is overloaded, the elastic connection piece deforms, the first conductive end moves away from the second conductive end, the button spring resets to push up the key switch, and the insulating partition rises to cut off the second conductive end and the first conductive end, disconnecting the circuit connection between the power connection component and the power receiving component, and the socket circuit is in an open circuit protection state.

4. The overload protection switch socket according to claim 1, characterized in that: The lower part of the power connection component is an L-pole incoming line insertion piece connected to an external power supply, and the elastic connection piece is horizontally installed on the upper part of the L-pole incoming line insertion piece; the elastic connection piece is a thermal bimetal sheet, and a silver rivet point is arranged on the side of its end facing the power receiving component to form a first conductive end corresponding to the second conductive end.

5. The overload protection switch socket according to claim 1, wherein: The power receiving component includes a socket E-pole socket, a socket L-pole socket and a socket N-pole socket; the socket E-pole socket is installed in the middle, and the socket L-pole socket and the socket N-pole socket are respectively arranged on both sides; one end of the socket L-pole socket bends outwards laterally and is provided with a silver rivet point to form the second conductive end.

6. The overload protection switch socket according to claim 3, characterized in that: The packaging housing includes a protection door bracket, an installation groove is arranged on one side of the protection door bracket, a notch for fitting with the connecting plate is formed through the upper part of the installation groove, and curved surface structures extend downward on both sides of the lower part; the top of the curved surface structure is fixed on the back of the protection door bracket, and the inner side surface is fitted with the positioning column.

7. The overload protection switch socket according to claim 6, characterized in that: The packaging shell includes a socket panel and a socket back seat, and the socket panel, the protective door bracket and the socket back seat are covered and installed in sequence; the inner cavity of the socket back seat is provided with an upwardly protruding limit plate, and one side of the limit plate is provided with a mounting column corresponding to the curved surface structure one by one; a limit space is formed between the limit plates to fix the power receiving part and the power receiving part; the button spring is placed in the hollow interior of the mounting column, and one side is open to embed the key switch.

8. The overload protection switch socket according to claim 7, characterized in that: A side wall of one side of the socket panel is recessed inward to form a clearance groove, and a top of the clearance groove is bent to form a chamfer.

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