Socket

Abstract

The invention relates to a socket, and belongs to the technical field of power supplies. The socket comprises a socket shell, a plug bush assembly, a switch module and an overload protection module; the plug bush assembly, the switch module and the overload protection module are all located in the socket shell, and a reset button of the overload protection module and a switch button of the switch module are exposed through the same face of the socket shell. The N pole of the plug bush assembly is used for being electrically connected with an N pole wire of the power line, the L pole of the plug bush assembly, the switch module and the overload protection module are electrically connected in sequence, and the overload protection module is used for being electrically connected with an L pole wire of the power line. The socket disclosed by the invention has an overload protection function, and the use safety can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power supply, and in particular to a socket. Background Art

[0002] As people's living standards improve, their demand for electricity is growing. As common power-collecting devices in homes, people are paying more and more attention to the safety of plugs and sockets.

[0003] As electrical appliances become more and more numerous, users often inadvertently experience overloads when using sockets. When a socket is overloaded, it can cause a fire, which is very dangerous. Therefore, how to make the socket have an overload protection function is a key technical issue. Summary of the invention

[0004] In order to solve the problems of the prior art, the present disclosure provides a socket. The technical solution is as follows:

[0005] According to the present disclosure, a socket is provided, comprising a socket housing, a socket assembly, a switch module and an overload protection module;

[0006] The socket assembly, the switch module and the overload protection module are all located in the socket housing, and the reset button of the overload protection module and the switch button of the switch module are exposed through the same surface of the socket housing;

[0007] The second pole of the socket assembly is used to be electrically connected to the second pole conductor of the power line, the first pole of the socket assembly, the switch module and the overload protection module are electrically connected in sequence, and the overload protection module is used to be electrically connected to the first pole conductor of the power line.

[0008] Optionally, the reset button of the overload protection module and the switch button of the switch module are both exposed through the socket surface of the socket housing, wherein the socket surface is the front side of the socket housing having the socket.

[0009] Optionally, the overload protection module includes a first terminal and a second terminal. The overload protection module is in the shape of an elongated strip. The first terminal is located at one end of the overload protection module along the length direction, and the second terminal is located at one side of the overload protection module along the width direction.

[0010] Optionally, the number of the switch module is one, and the switch module and the overload protection module are both located between the socket assembly and the power cord hole of the socket housing;

[0011] The angle between the length direction of the switch module and the length direction of the socket is greater than 0 degrees and less than 90 degrees;

[0012] The first side of the switch module facing the socket assembly has a first terminal at a position close to the first end in the length direction, and has a second terminal at a position close to the second end in the length direction;

[0013] The first terminal of the switch module is connected to the first pole copper bar of the socket assembly, the first terminal of the overload protection module extends into the area between the first pole copper bar of the socket assembly and the first side of the switch module, and is connected to the second terminal of the switch module, the second terminal of the overload protection module faces the power cord hole, and is used to be connected to the first pole conductor of the power cord.

[0014] Optionally, the length direction of the overload protection module is parallel to the length direction of the switch module.

[0015] Optionally, the switch button and the reset button are distributed front and back in the width direction of the socket.

[0016] Optionally, the socket assembly includes a row of sockets, the socket includes a row of switch modules, the row of sockets and the row of switch modules are arranged in parallel and side by side in the socket housing, and the arrangement direction of the sockets and the switch modules is parallel to the width direction of the socket;

[0017] The overload protection module is located between the row of switch modules and the front shell wall of the socket housing, and the first wiring terminal of the overload protection module located at the end is close to the power line hole on the front shell wall, and the second wiring terminal of the overload protection module located at the side is close to the switch module;

[0018] The first connection terminal of each switch module in the row of switch modules is connected to the first pole of a socket, and the second connection terminal of each switch module is connected to the second connection terminal of the overload protection module.

[0019] Optionally, the second connection terminal of each switch module in the row of switch modules is connected to a conductive bar, and the end of the conductive bar close to the overload protection module is connected to the second connection terminal of the overload protection module.

[0020] Optionally, the switch button and the reset button are distributed front and back in the length direction of the socket.

[0021] Optionally, the first wiring terminal of the overload protection module has a wiring hole and a wiring protrusion;

[0022] In the case where the first wiring terminal is used to be electrically connected to the first polar conductor of the power line, the wiring hole of the first wiring terminal is used to be electrically connected to the first polar conductor of the power line;

[0023] When the first wiring terminal is electrically connected to the switch module, the wiring protrusion of the first wiring terminal is electrically connected to the switch module.

[0024] Optionally, the second wiring terminal has a wiring hole and a wiring protrusion;

[0025] When the second wiring terminal is electrically connected to the first polar conductor of the power line, the wiring hole of the second wiring terminal is electrically connected to the first polar conductor of the power line;

[0026] When the second wiring terminal is electrically connected to the switch module, the wiring protrusion of the second wiring terminal is electrically connected to the switch module.

[0027] Optionally, the plane where the wiring hole is located is parallel to the jack surface of the socket, and the protrusion direction of the wiring protrusion is perpendicular to the jack surface of the socket, wherein the jack surface is the front side of the socket housing having the jack.

[0028] Optionally, the wiring terminal having the wiring hole and the wiring protrusion includes a first wiring piece, a second wiring piece and a third wiring piece;

[0029] The shell wall of the overload protection module has an opening adapted to the thickness of the first terminal lug, the first terminal lug is stuck in the opening, a part of the first terminal lug is located in the shell, and another part of the first terminal lug protrudes from the shell;

[0030] The second terminal piece and the third terminal piece are both connected to the edge of the first terminal piece extending out of the other part of the housing, the terminal hole is arranged on the second terminal piece, and the terminal protrusion is arranged on the third terminal piece.

[0031] Optionally, the first connecting piece is an L-shaped sheet structure including a first conductive sheet and a second conductive sheet, a portion of the first conductive sheet is located in the housing, another portion of the first conductive sheet extends out of the housing, and the second conductive sheet is located outside the housing;

[0032] The second terminal piece and the third terminal piece are both connected to the edge of the first terminal piece facing the bottom surface of the housing, and one is connected to the edge of the first conductive piece, and the other is connected to the edge of the second conductive piece.

[0033] Optionally, the first terminal plate, the second terminal plate and the third terminal plate are integrally formed.

[0034] Optionally, the overload protection module includes a housing, a first terminal, a second terminal and a deformation piece;

[0035] The first surface of the deformable piece has a moving contact at a position close to the first end of the deformable piece, and a portion of the deformable piece close to the second end is fixed in the housing;

[0036] A portion of the first terminal extends into the housing, and another portion extends out of the housing, and a static contact is provided on the portion of the first terminal extending into the housing;

[0037] A portion of the second terminal extends into the housing, and another portion extends out of the housing, and the portion of the second terminal extending into the housing is fixedly connected to a portion of the deformable sheet close to the second end;

[0038] When the deformable sheet is not deformed, the moving contact is in contact with the static contact; when the deformable sheet is deformed, the moving contact is separated from the static contact.

[0039] Optionally, one of the portion of the first terminal extending out of the shell and the portion of the second terminal extending out of the shell is used for electrical connection to the switch module, and the other is used for electrical connection to the first pole conductor of the power line.

[0040] Optionally, the first surface of the deformable piece has a first convex bulge at a position close to the first end, and the moving contact is located on the surface of the first convex bulge.

[0041] Optionally, the deformable sheet has a second convex hump at a position close to the second end, and the deformable sheet is fixedly connected to a portion of the second terminal extending into the housing at the position of the second convex hump.

[0042] Optionally, the deformable sheet has a third convex hull on the second surface along the thickness direction and in the middle portion.

[0043] Optionally, the overload protection module further includes a reset rod;

[0044] The reset rod is installed in the housing, and the reset button is arranged on the top of the reset rod, and the reset button is exposed through the socket housing;

[0045] When the deformable sheet is not deformed and the reset button is in a pressed state, the moving contact is in contact with the static contact; when the deformable sheet is deformed, the moving contact is separated from the static contact.

[0046] Optionally, the overload protection module further includes an elastic member, wherein the elastic member is compressed between the bottom of the housing and the bottom of the reset rod;

[0047] When the deformable sheet is deformed, the moving contact is separated from the static contact, and the reset button pops up under the action of the elastic member.

[0048] Optionally, a channel is provided in the shell of the overload protection module, a mounting opening is provided at the bottom of the shell at a position corresponding to the channel, and the elastic member is located in the channel;

[0049] The overload protection module further includes a sealing plug, which is sealed in the installation opening, and the elastic member is compressed between the sealing plug and the reset rod.

[0050] Optionally, the sealing plug is cylindrical in shape, and the mounting opening is quadrilateral in shape.

[0051] Optionally, the third pole of the socket assembly is used to be electrically connected to the third pole conductor of the power cord.

[0052] In the disclosed embodiment, the reset button and the switch button of the socket are exposed through the same surface of the socket housing, for example, both are exposed through the panel of the socket, and the position of the reset button is relatively conspicuous. With this arrangement, after the socket loses power due to overload and returns to normal, if the socket is still not powered on after the user presses the switch button, then the user will naturally press the reset button next to the switch button, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0054] Figure 1 is a schematic diagram of a single switch socket provided by an exemplary embodiment of the present disclosure;

[0055] Figure 2 yes Figure 1 The internal structure diagram of the socket shown;

[0056] Figure 3 is a schematic diagram of a multi-switch socket provided by an exemplary embodiment of the present disclosure;

[0057] Figure 4 yes Figure 3 The internal structure diagram of the socket shown;

[0058] Figure 5 is a schematic diagram of an overload protection module provided by an exemplary embodiment of the present disclosure;

[0059] Figure 6 is a structural schematic diagram of a first terminal of an overload protection module provided by an exemplary embodiment of the present disclosure;

[0060] Figure 7 is a schematic diagram of a first terminal provided by an exemplary embodiment of the present disclosure being installed into a bottom housing;

[0061] Figure 8 is a schematic diagram of a second terminal provided by an exemplary embodiment of the present disclosure being installed into a bottom housing;

[0062] Fig. 9 is a schematic diagram of a second terminal provided by an exemplary embodiment of the present disclosure after being installed in a bottom housing;

[0063] Fig.10 is an exploded schematic diagram of an overload protection module provided by an exemplary embodiment of the present disclosure;

[0064] Fig.11 is a structural schematic diagram of an overload protection module provided by an exemplary embodiment of the present disclosure;

[0065] Fig.12 It is a schematic diagram of a fixed deformation piece and a second terminal installed in a bottom shell according to an exemplary embodiment of the present disclosure;

[0066] Fig.13 is a schematic diagram of a deformable sheet in a bottom shell provided by an exemplary embodiment of the present disclosure;

[0067] Fig.14 is a structural schematic diagram of a reset rod provided by an exemplary embodiment of the present disclosure;

[0068] Fig.15 is a partial structural diagram of an overload protection module provided by an exemplary embodiment of the present disclosure;

[0069] Fig.16 is a schematic diagram of a reset rod provided by an exemplary embodiment of the present disclosure being installed in a bottom shell;

[0070] Fig.17 is a schematic diagram of a reset rod provided by an exemplary embodiment of the present disclosure after being installed into a bottom shell;

[0071] Fig.18 is a schematic diagram of an elastic member and a sealing plug provided by an exemplary embodiment of the present disclosure being installed into a bottom shell;

[0072] Figures 19 to 22 It is a schematic structural diagram of a shell provided by an exemplary embodiment of the present disclosure.

[0073] Description of Reference Numerals

[0074] 100, socket housing; 101, socket surface; 200, socket assembly; 201, socket; 300, switch module; 301, switch button; 400, overload protection module.

[0075] 1. Shell; 11. Upper cover; 12. Bottom shell; 111. Protrusion structure; 112. Bump structure; 1121. First bump; 1122. Second bump.

[0076] 121. First opening; 122. Second opening; 123. Passage; 124. Installation opening.

[0077] 2. First terminal; 21. First connecting piece; 22. Second connecting piece; 23. Third connecting piece.

[0078] 3. The second terminal; 31. The first conductive sheet; 32. The second conductive sheet; 33. The third conductive sheet; 34. The fourth conductive sheet.

[0079] 4. Deformation sheet.

[0080] 5. reset rod; 51. first rod portion; 52. second rod portion; 511. reset button; 521. first side rib; 522. second side rib; 523. spacer.

[0081] 6. Elastic parts.

[0082] 7. Seal the plug. DETAILED DESCRIPTION

[0083] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0084] This embodiment relates to a socket, specifically a mobile power strip, which can be a wired socket with a power cord or a wireless socket without a power cord. After purchasing the wireless socket, the user connects the power cord by himself, or the socket can be a one-to-many converter.

[0085] This embodiment does not limit the specific type of the socket. Regardless of the type of socket, the socket is a socket that has both a switching function and an overload protection function. The reset button for executing the overload protection function and the switch button for executing the switching function of the socket are arranged on the same side of the socket, both on a more conspicuous side of the socket, which is convenient for user operation.

[0086] Moreover, this embodiment arranges the overload protection module on the basis of the original socket with switch function without changing the internal layout of the socket, thereby reducing the processing and manufacturing cost of the socket.

[0087] The following describes the characteristics of the socket.

[0088] like Figures 1 to 4 The diagram shows the structure of the socket. Figure 1A schematic diagram showing multiple rows of sockets with a single switch. Figure 2 Shown is Figure 1 The schematic diagram of the internal structure behind the hidden socket base of the multi-row socket shown in the figure, Figure 3 The diagram shows a multi-switch socket. Figure 4 Shown is Figure 3 The diagram of the internal structure of the multi-switch socket behind the hidden socket base is shown.

[0089] like Figures 1 to 4 As shown, the socket includes a socket housing 100, a socket assembly 200, a switch module 300 and an overload protection module 400, wherein the socket housing 100 includes a socket cover and a socket base that are buckled together, and the socket cover and the socket base are buckled together to form a accommodating chamber, the socket assembly 200, the switch module 300 and the overload protection module 400 are all located in the accommodating chamber, and the reset button 511 of the overload protection module 400 and the switch button 301 of the switch module 300 are exposed through the same surface of the socket housing 100.

[0090] The switch button 301 is a button that is frequently used by users and is generally arranged on a more conspicuous side of the socket. For example, for a desktop socket that is usually placed on a desktop, the switch button 301 is generally arranged on the front of the socket. For another example, for a socket with multiple turns, the switch button 301 is generally arranged on the side of the socket, such as the side above. No matter which side of the socket the switch button 301 is on, it is a more conspicuous side of the socket. The reset button 511 of the overload protection module is arranged on the same side of the socket as the switch button 301. Then, after the socket is disconnected due to an overload, when it is used again, the position of the reset button 511 is more conspicuous, and the user can naturally press the reset button 511 to enhance the user experience. Moreover, the reset button 511 and the switch button 301 are located on the same side of the socket, which will not hinder the normal placement of the socket.

[0091] In one example, the switch button 301 and the reset button 511 can be exposed through the jack surface 101 of the socket housing 100, wherein the jack surface 101 is also the side of the socket housing 100 with the jack. For example, for a desktop socket, the jack surface 101 is the front of the socket, and for a one-turn multi-socket, the jack surface is the side of the socket, such as the above side. In this embodiment, the jack surface is the front of the socket housing, and the switch button 301 and the reset button 511 are both exposed through the front of the socket housing.

[0092] The following describes the overload protection module. Figure 1 The single switch multi-row socket shown in the figure and the Figure 3The layout of the multi-switch socket shown in the figure. Before introducing the two layouts, the electrical connection relationship between the socket assembly 200, the switch module 300 and the overload protection module 400 is first introduced.

[0093] You can refer to Figure 2 or Figure 4 As shown, one end of the socket housing 100 has a power cord hole for the power cord to pass through, and the first pole conductor, the second pole conductor and the third pole conductor of the power cord extending into the socket housing 100 are electrically connected to the first pole, the second pole and the third pole of the socket assembly 200 respectively. Among them, the first pole conductor is used to connect to the live wire, the second pole conductor is used to connect to the neutral wire, and the third pole conductor is used to connect to the earth wire, so the first pole is also called the L pole, the second pole is called the N pole, and the third pole is called the E pole. After the power cord is connected, the current is transmitted from the power cord to the socket assembly 200, and the plug of the plug is inserted into the socket of the socket assembly 200 to achieve power collection.

[0094] It should be noted that if the socket in the socket assembly is a two-pole socket, then the L pole and N pole of the socket assembly are electrically connected to the L pole wire and N pole wire of the power line respectively. The accompanying drawings take the socket assembly as an example including the L pole, N pole and E pole.

[0095] Since the live wire is a live line and the neutral wire is not live and is only responsible for returning the current to the power supply, the switch module 300 and the overload protection module 400 are arranged on the L-pole circuit based on timely power cut-off and safety considerations. Based on safety considerations, the overload protection module 400 needs to be arranged on the trunk of the L-pole circuit, so the L-pole conductor of the power line, the overload protection module 400, the switch module 300 are electrically connected and the L-pole of the socket assembly 200 are electrically connected in sequence. That is, the L-pole conductor is connected to one terminal of the overload protection module 400, the other terminal of the overload protection module 400 is connected to one terminal of the switch module 300 (recorded as the second terminal), and the other terminal of the switch module 300 (recorded as the first terminal) is connected to the L-pole of the socket assembly 200.

[0096] Under normal circumstances, the two terminals of the overload protection module 400 remain electrically connected. When the circuit is overloaded, the two terminals of the overload protection module 400 are disconnected, cutting off the electrical connection between the power cord and the socket assembly on the L-pole circuit. When resuming normal use, the user needs to press the reset button 511 to electrically connect the two terminals of the overload protection module.

[0097] refer to Figure 1 and Figure 2 The figure shows the schematic diagram of the overload protection module in a single switch multi-row socket. Figure 1As shown, the switch button 301 and indicator light of the switch module are generally arranged on the center line of the socket, with the switch button 301 at the head position and the indicator light at the tail position, wherein the head is the end where the power cord is located and the tail is the opposite end away from the power cord.

[0098] In terms of the appearance of the socket, the reset button 511 can be arranged near the switch button 301. Figure 1 As shown, the reset button 511 and the switch button 301 are arranged front and back in the width direction of the socket. In this arrangement, when the socket is powered off due to overload and returns to normal, after the user presses the switch button 301, if the socket is still not powered on, the user will naturally press the reset button 511 next to the switch button 301.

[0099] It should be pointed out that for the sake of convenience, the length direction and width direction of the socket will be used in the introduction. The length direction is parallel to the outlet direction of the power cord, and the width direction is perpendicular to the outlet direction of the power cord. The outlet direction of the power cord depends on the center line of the power cord hole on the socket shell, so the length direction is parallel to the center line of the power cord hole, and the width direction is perpendicular to the center line of the power cord hole.

[0100] Inside the socket, reference Figure 2 As shown, the socket assembly 200 includes multiple rows of sockets, which are arranged along the width direction of the socket. For example, the socket assembly 200 includes two rows of five-hole sockets, which are arranged along the width direction of the socket. Each row of sockets includes at least one socket, and each socket in each row is arranged along the length direction of the socket.

[0101] It should be noted that the multiple rows of sockets may be multiple rows of five-hole sockets, or multiple rows of three-hole sockets, or may include at least one row of two-hole sockets and at least one row of three-hole sockets, or may include at least one row of two-hole sockets and at least one row of five-hole sockets. This embodiment does not limit this, and takes two rows of five-hole sockets as an example.

[0102] refer to Figure 2 As shown, the switch module is arranged in an inclined state in the socket housing, that is, the angle between the center line of the switch module 300 and the length direction of the socket is greater than 0 degree and less than 90 degrees.

[0103] refer to Figure 2 As shown, the switch module 300 is in the shape of a rectangular box, and the center line of the switch module, unless otherwise specified, refers to the center line along the length direction of the switch module 300. Similarly, the overload protection module is also in the shape of a rectangular box, and the center line of the overload protection module, unless otherwise specified, refers to the center line along the length direction of the overload protection module.

[0104] Continue to refer Figure 2 As shown, there is a certain space between the socket at the edge of the socket assembly 200 close to the head and the side of the switch module 300, so the overload protection module 400 can be arranged within the angle range between the socket at the edge of the socket assembly 200 and the side of the switch module 300, and the switch module 300 is in the middle of the socket, and the overload protection module is between the switch module 300 and a side wall of the socket housing. In this arrangement, the electrical connection between the overload protection module and the switch module can be directly connected without being connected through a wire. For example, one end of the overload protection module extends into the area between the side of the switch module and the socket, then a terminal (referred to as the first terminal) can be arranged at the end of the overload protection module, and the first terminal is directly connected to the terminal located at the side of the switch module without being connected in series through a wire, and the connection method is simple.

[0105] refer to Figure 2 As shown, the overload protection module 400 may also be arranged in the socket housing 100 in an inclined state, for example, the center line of the overload protection module 400 along the length direction is parallel to the center line of the switch module.

[0106] It should be pointed out that if the socket is relatively large in size in the width direction, for example, the socket assembly includes three rows of sockets, then the switch module and the overload protection module can be arranged vertically in the socket housing, one in front of the other, along the width direction of the socket. That is, the switch module and the overload protection module are arranged front and back along the width direction of the socket, and the center line of the switch module and the center line of the overload protection module are parallel to the width direction of the socket.

[0107] It should be noted that the overload protection module can also be used in a single-row socket with a single switch, that is, Figure 1 Compared with the socket shown in the figure, the socket assembly includes a socket with a row of sockets. In such a socket with a single row of sockets, the width of the socket is generally small, so the overload protection module can be arranged between the switch module and the power cord hole. In order to save the arrangement space, the center line of the overload protection module and the center line of the switch module are parallel to the width direction of the socket. Of course, it is also possible that the switch module is arranged between the overload protection module and the power cord, and the center line of the overload protection module and the center line of the switch module are parallel to the width direction of the socket. In this solution, the L-pole conductor of the power cord, the switch module, the overload protection module and the L-pole of the socket assembly 200 are electrically connected in sequence.

[0108] refer to Figure 3 and Figure 4 As shown in the figure, the schematic diagram of the overload protection module in the multi-switch socket. Figure 3As shown, in the width direction of the socket, the switch button 301 occupies one row and the jacks occupy one row, then the reset button 511 can be in the same row with the switch button 301, and the switch button 301 and the reset button 511 are arranged left and right in the length direction of the socket, or, the reset button 511 can be in the same row with the jacks, arranged left and right along the length direction, but the reset button 511 is in the same row with the switch button 301, which can facilitate the connection between the switch module and the overload protection module.

[0109] Inside the socket, reference Figure 4 As shown, all the sockets are located on the first side of the center line P of the socket to form a row of sockets, and all the switch modules 300 are located on the second side of the center line P of the socket to form a row of switch modules. A row of sockets and a row of switch modules are arranged in parallel and side by side in the socket housing. For example, a row of sockets is in the first row, and a row of switch modules is in the second row. The first row and the second row are distributed front and back in the width direction of the socket.

[0110] Each socket in a row of sockets is positioned opposite to each switch module 300 in a row of switch modules, and the L pole of each socket is connected to the first connection terminal of a corresponding switch module.

[0111] A row of sockets may include one or more sockets 201. If there are multiple sockets 201, the multiple sockets 201 are arranged in sequence along the length direction of the socket. Figure 4 In the example, a row of sockets includes a plurality of sockets 201 .

[0112] A row of sockets includes multiple sockets, so a row of switch modules also includes multiple switch modules. Figure 4 As shown, multiple switch modules in a row of switch modules are arranged along the length direction of the socket. In order to save the layout space of the socket in the width direction, accordingly, reference Figure 4 As shown, the length direction of the switch module is parallel to the length direction of the socket.

[0113] Continue to refer Figure 4 As shown, inside the socket, there is free space between a row of switch modules and the front shell wall of the socket housing, and there is also free space between a row of socket sleeves and the front shell wall. However, considering that there is an electrical connection between the switch module and the overload protection module, therefore, reference Figure 4 As shown, the overload protection module can be arranged between a row of switch modules and the front shell wall of the socket housing. The front shell wall is also the shell wall of the socket housing with a power line hole.

[0114] Because the distance between the switch module and the front shell wall is smaller than the width of the socket, Figure 4As shown, when placing the overload protection module, the length direction of the overload protection module can be parallel to the width direction of the socket, and the width direction of the overload protection module can be parallel to the length direction of the socket.

[0115] In this arrangement, the electrical connection between the overload protection module and the switch module can be directly connected without connecting through wires, for example, Figure 4 As shown, one side of the overload protection module is close to the switch module, so the terminal on this side of the overload protection module (referred to as the second terminal) can be directly connected to the second terminal of the switch module without being connected in series through a wire.

[0116] For example, refer to Figure 4 As shown, the second terminals of all switch modules in a row of switch modules are connected to a conductive strip (such as a copper strip), and the end of the conductive strip close to the overload protection module is directly connected to the second terminal on the side of the overload protection module without the need for series connection through wires, and the connection method is simple.

[0117] The overload protection module is arranged in the socket housing according to the above layout, and is arranged in the originally vacant space in the socket housing, so that the volume of the socket will not be increased due to the arrangement of the overload protection module.

[0118] The above is an introduction to the arrangement of the overload protection module in the socket housing. From the above introduction, it can be seen that either the wiring terminal at the end of the overload protection module is connected to the switch module, or the wiring terminal at the side of the overload protection module is connected to the switch module. Therefore, in order to make the overload protection module universal, without making any changes, it can be arranged in Figure 1 The socket shown in FIG. 1 can also be arranged in Figure 3 In the socket shown, correspondingly, the two terminals of the overload protection module may be one at the end and the other at the side, and the terminal at the end is recorded as the first terminal and the terminal at the side is recorded as the second terminal.

[0119] The switch module 300 also has two terminals, one of which is used to connect to the L pole of the socket, and is denoted as the first terminal, and the other terminal is used to connect to the overload protection module 400, and is denoted as the second terminal.

[0120] Overload protection module is used in Figure 1 When the socket is shown, refer to Figure 2 As shown, the first terminal of the overload protection module 400 located at the end extends into the area between the L-pole copper bar of the socket assembly 200 and the first side of the switch module 300, is relatively close to the switch module 300, and can be directly connected to the second terminal of the switch module 300. The second terminal of the overload protection module 400 faces the power cord hole, is relatively close to the power cord, and can be used to connect to the L-pole conductor of the power cord.

[0121] Overload protection module is used in Figure 3 When the socket is shown, refer to Figure 4 As shown, the second terminal of the overload protection module 400 located on the side is close to the switch module 300 and is relatively close to the switch module 300, and can be connected to the second terminal of the switch module 300. The first terminal of the overload protection module 400 located at the end is relatively close to the power cord hole at this time, and can be connected to the L-pole wire of the power cord.

[0122] For example, the second terminal located on the side of the overload protection module 400 is connected to the second terminal of the switch module through a conductive strip, wherein the second terminal of each switch module is connected to the conductive strip, and the end of the conductive strip is directly connected to the second terminal of the overload protection module.

[0123] It can be seen that the two terminals of the overload protection module are one at the end and the other at the side. Therefore, the overload protection module is used in Figure 1 When the overload protection module is used in the socket shown in FIG. 1 , the terminal at the end (i.e., the first terminal) can be electrically connected to the switch module 300, and the terminal at the side (i.e., the second terminal) can be connected to the L-pole conductor of the power line. Figure 3 When the socket is in the shape shown, the terminal at the end (i.e., the first terminal) can be connected to the L-pole conductor of the power line, and the terminal at the side (i.e., the second terminal) can be electrically connected to the switch module.

[0124] That is, the first terminal of the overload protection module is Figure 1 Socket, connected to the switch module, such as Figure 3 The socket shown in FIG. 1 is connected to the power line, and the second terminal of the overload protection module is connected to the power line. Figure 1 The socket shown in the figure is connected to the power cord. Figure 3 The socket shown is connected to the switch module.

[0125] It should be noted that the side where the second terminal of the overload protection module is located is installed on the Figure 1 When the socket is shown, the side facing the power cord hole is assembled in the Figure 3 The side of the socket facing the switch module, where the first terminal of the overload protection module is located, is assembled as shown in FIG. Figure 1 When the socket is in the socket shown in the figure, the end of the angle range between the plug sleeve and the switch module is inserted into the socket and the switch module is assembled as shown in the figure. Figure 3 end near the power cord hole when in the outlet shown.

[0126] like Figure 5 The figure shows the structure of the overload protection module. Figure 5As shown, the overload protection module includes a first terminal 2 located at the end and a second terminal 3 located at the side. In order to make the first terminal 2 compatible with both the power line and the terminal of the switch module, correspondingly, reference Figure 5 As shown, the first terminal 2 has a wiring hole and a wiring protrusion. Then, when the first terminal 2 is used to electrically connect to the L-pole conductor of the power line, the wiring hole of the first terminal 2 is used to electrically connect to the L-pole conductor of the power line; when the first terminal 2 is electrically connected to the switch module, the wiring protrusion of the first terminal 2 is electrically connected to the switch module.

[0127] For example, the overload protection module is used in Figure 1 When the socket is shown, the first terminal of the overload protection module at the end is connected to the switch module, and the terminal of the switch module is generally a wiring hole. Therefore, in this case, the wiring protrusion on the first terminal of the overload protection module is inserted into the wiring hole of the switch module, and then welded together to achieve a stable connection. The overload protection module is used in Figure 3 In the socket shown, the first terminal of the overload protection module located at the end is connected to the L-pole wire of the power cord, and the connection between the wiring hole and the wire is more secure. Therefore, in this case, the wiring hole on the first terminal of the overload protection module is connected to the L-pole wire. For example, after the L-pole wire of the power cord is pulled apart to expose the conductive core, the conductive core passes through the wiring hole and is wrapped in the wiring hole to achieve a stable connection.

[0128] Similarly, the second terminal of the overload protection module 400 may also have both a wiring protrusion and a wiring hole. When the second terminal of the overload protection module 400 is electrically connected to the L-pole conductor of the power line, the wiring hole on the second terminal of the overload protection module 400 is electrically connected to the L-pole conductor of the power line; when the second terminal of the overload protection module 400 is electrically connected to the switch module, the wiring protrusion on the second terminal of the overload protection module 400 is electrically connected to the wiring hole of the switch module.

[0129] As an example, the first wiring terminal of the overload protection module 400 has a wiring protrusion and a wiring hole, and the second wiring terminal also has a wiring protrusion and a wiring hole.

[0130] As another example, the first wiring terminal or the second wiring terminal of the overload protection module 400 has a wiring protrusion and a wiring hole.

[0131] Next, the specific structure of the first wiring terminal of the overload protection module 400 is introduced by assuming that the first wiring terminal has a wiring protrusion and a wiring hole.

[0132] Among them, copper bars are generally used for wiring inside the socket shell, and the copper bars are generally arranged horizontally and vertically inside the socket shell. Then, the plane where the wiring hole on the wiring terminal is located is generally parallel to the panel of the socket, so the wiring protrusion extending into the wiring hole needs to be perpendicular to the panel.

[0133] Therefore, the protruding direction of the wiring protrusion on the first wiring terminal of the overload protection module is perpendicular to the panel of the socket, and the plane where the wiring hole thereon is located is parallel to the panel of the socket.

[0134] The wiring holes and wiring protrusions can be arranged on the conductive sheet. Figure 6 As shown, it is a schematic diagram of the structure of the first terminal 2, referring to Figure 6 As shown, the first terminal 2 may include three terminals, which are respectively denoted as the first terminal 21, the second terminal 22 and the third terminal 23, wherein a portion of the first terminal 21 extends into the housing 1 of the overload protection module for electrical connection with the second terminal 3, and another portion of the first terminal 21 extends out of the housing.

[0135] For example, the housing 1 of the overload protection module may have a first opening 121 matching the thickness of the first terminal piece 21 , and the first terminal piece 21 is fixed in the first opening 121 , with one part located inside the housing 1 and the other part located outside the housing 1 .

[0136] The second terminal plate 22 and the third terminal plate 23 are both connected to the edge of the portion of the first terminal plate 21 extending out of the housing, wherein the second terminal plate 22 is provided with a wiring hole, and the third terminal plate 23 is provided with a wiring protrusion.

[0137] As mentioned above, the protrusion direction of the wiring protrusion is perpendicular to the panel of the socket, and the plane where the wiring hole is located is parallel to the panel, so Figure 6 As shown, the second connecting piece 22 and the third connecting piece 23 are both horizontal conductive pieces, that is, conductive pieces parallel to the panel, and the second connecting piece 22 and the third connecting piece 23 may also be coplanar.

[0138] In one example, the first terminal sheet 21, the second terminal sheet 22 and the third terminal sheet 23 can be integrally formed, for example, a conductive metal sheet is bent to form a Figure 6 The first terminal is shown. Figure 6 As shown, the first connecting piece 21 is an L-shaped sheet structure, including a first conductive sheet 211 and a second conductive sheet 212. Figure 5As shown, a portion of the first conductive sheet 211 is located in the shell, and another portion extends out of the shell, the second conductive sheet 212 is located outside the shell, and the second terminal sheet 22 and the third terminal sheet 23 are both connected to the edge of the first conductive sheet 211 facing the bottom surface of the shell, and one is connected to the edge of the first conductive sheet 211, and the other is connected to the edge of the second conductive sheet 212.

[0139] It should be noted that whether the wiring protrusion on the first wiring terminal 2 protrudes toward the bottom surface of the housing or the top surface of the housing is mainly related to the height of the first wiring terminal of the overload protection module and the second wiring terminal of the switch module. Figure 2 As shown, the second terminal of the switch module is higher than the first terminal of the overload protection module, so the wiring protrusion extends from bottom to top into the wiring hole of the switch module, so the wiring protrusion of the first terminal of the overload protection module protrudes toward the bottom of the shell.

[0140] As described above, the first conductive sheet 211 of the first terminal 2 is stuck on the shell wall of the shell, and the first terminal 2 is located at the end of the overload protection module, so, refer to Figure 7 As shown, a first opening 121 is formed on the front end wall of the bottom shell 12 . The first opening 121 is adapted to the thickness of the first conductive sheet of the first terminal 2 , so that the first conductive sheet is stuck in the first opening 121 .

[0141] The first opening 121 of the bottom shell 12 is a trumpet-shaped opening at the top, so that the first conductive sheet of the first terminal 2 can be smoothly inserted into the first opening 121 .

[0142] As described above, the second terminal 3 is also partially located inside the housing 1 and partially located outside the housing 1, so Figure 8 and Fig. 9 As shown, the second terminal 3 includes four integrally formed conductive sheets, the first conductive sheet 31 is vertically connected to the second conductive sheet 32, the third conductive sheet 33 is vertically connected to the second conductive sheet 32, and the fourth conductive sheet 34 is vertically connected to the third conductive sheet 33. Among them, the first conductive sheet 31 and the third conductive sheet 33 are parallel to the first shell wall of the bottom shell 12, and the first shell wall is the shell wall on the side where the second terminal 3 is located. The first conductive sheet is fixedly connected to the second end of the deformable sheet 4 described later, and the first conductive sheet is fixed to the second end of the deformable sheet 4 and is inserted into the slot of the shell after being fixed. The second conductive sheet is stuck on the first shell wall, such as the first shell wall has a second opening 122 adapted to the thickness of the second conductive sheet 32. The third conductive sheet 33 can be attached to the outer surface of the first shell wall. The fourth conductive sheet 34 is parallel to the bottom surface of the bottom shell 12, and the fourth conductive sheet 34 has a wiring hole for wiring.

[0143] The second opening 122 on the first shell wall is also a trumpet-shaped opening at the top, so that the third conductive sheet 33 of the second terminal can be smoothly inserted into the second opening 122 .

[0144] The above is an introduction to the features of the first terminal and the second terminal of the overload protection module. Regarding the solution that the second terminal of the overload protection module also has a wiring protrusion and a wiring hole, you can refer to the above description and will not repeat it here.

[0145] The overload protection module arranged in the socket is compatible with the original structural parts inside the socket. There is no need to re-mold the internal structure of the socket in order to add the overload protection module, which can reduce the manufacturing cost of the socket.

[0146] Moreover, the overload protection module can be installed in Figure 1 The single-switch socket shown can also be assembled in a multi-switch socket, which enhances the universality and versatility of the overload protection module.

[0147] Next, the principle of overload protection implemented by the overload protection module is introduced.

[0148] like Fig.10 As shown in the figure, it is an exploded diagram of the overload protection module. Fig.11 The schematic diagram of the overload protection module is shown in the positive direction. Fig.10 As shown, the overload protection module includes a housing 1 , a first terminal 2 , a second terminal 3 , a deformation piece 4 and a reset rod 5 .

[0149] like Fig.10 And refer to Fig.11 As shown, the housing 1 includes an upper cover 11 and a bottom shell 12, and the upper cover 11 and the bottom shell 12 are fixed to form a receiving cavity. The deformation piece 4 is located in the housing 1, and the reset rod 5 is also located in the housing 1, but the reset button 511 on the top of the reset rod 5 passes through the upper cover 11 of the housing and is exposed through the socket housing. The first terminal 2 and the second terminal 3 are both partially extended into the housing and the other part extends out of the housing. The parts of the first terminal 2 and the second terminal 3 located in the housing are electrically connected through the deformation piece 4. The parts of the first terminal 2 and the second terminal 3 located outside the housing 1 are used to connect to the switch module and the other part to connect to the L-pole conductor of the power line.

[0150] The deformable sheet 4 is a metal sheet that can be deformed at high temperatures. When the temperature inside the overload protection module is higher than a preset temperature threshold, the sheet is deformed, causing the first terminal 2 and the second terminal 3 to separate, and the circuit where the overload protection module is located is disconnected. When the temperature inside the overload protection module is lower than the preset temperature threshold and the reset button 511 is in a pressed state, the deformable sheet 4 is reset to the point where the first terminal 2 and the second terminal 3 are in contact, and the circuit where the overload protection module is located is connected.

[0151] As an example, Fig.12 and Fig.13 As shown, the first surface of the deformable piece 4 may have a moving contact at a position close to the first end, and the deformable piece 4 is fixed in the housing at a portion close to the second end.

[0152] For example, Fig.13 As shown, the movable contact of the deformation piece 4 contacts the first terminal 2. Fig.12 As shown, the first surface of the deformable sheet 4 is fixedly connected to the second terminal 3 at a portion close to the second end (ie, the end away from the moving contact), such as by rivet connection or welding.

[0153] Of course, it is also possible that the movable contact of the deformable piece 4 contacts the second terminal 3, and the first surface of the deformable piece 4 is fixedly connected to the first terminal at a portion close to the second end (ie, the end away from the movable contact).

[0154] The text and the drawings all take the example that the moving contact contacts the first terminal 2, and the first surface of the deformable sheet 4 is fixedly connected to the second terminal 3 at the portion near the second end. Then, the portion of the first terminal 2 extending into the housing 1 has a static contact on the surface facing the moving contact.

[0155] like Fig.12 and Fig.13 As shown, after the deformable sheet 4 is fixed to the second terminal 3, it is assembled in the housing 1. For example, the housing 1 has a slot, and after the second end of the deformable sheet 4 is fixed to the second terminal, they are jointly inserted into the slot.

[0156] like Fig.13 As shown, after the deformable sheet 4 is installed in the housing, there is a spacing H between the second surface of the deformable sheet 4 (i.e., the surface facing away from the moving contact) and the side wall of the housing. This spacing is used for the deformable sheet 4 to deform and the moving contact to bounce relative to the static contact.

[0157] Then, when the deformable piece 4 is deformed, the moving contact bounces away from the static contact, and the first terminal is disconnected from the second terminal. When the deformable piece 4 is reset, the moving contact resumes contact with the static contact, and the first terminal is connected to the second terminal.

[0158] The deformable sheet 4 can be a bimetallic sheet formed of two kinds of metal, or a memory alloy. For example, the deformable sheet 4 is a bimetallic sheet formed of two kinds of metal, including an active layer and a passive layer, the active layer and the passive layer are made of different materials, and the thermal expansion coefficient of the active layer is greater than the thermal expansion coefficient of the passive layer. At high temperatures, the deformation of the active layer is greater than the deformation of the passive layer, causing the deformable sheet 4 to bend, wherein the bending direction is that the active layer bends toward the side where the passive layer is located.

[0159] As described above, when the deformable sheet 4 is deformed, the moving contact is separated from the static contact, so the moving contact is arranged on the active layer.

[0160] Because the thickness of the deformable plate 2 is relatively thin (such as less than 0.2 mm), the rigidity of the deformable plate 4 is relatively small, which can easily cause the moving contact to separate from the static contact with a slight change in temperature. For this reason, the deformable plate 4 has convex hulls on its first surface and / or second surface, and the rigidity of the deformable plate 4 is enhanced by these convex hulls.

[0161] refer to Fig.12 As shown, the first surface of the deformable sheet 4 has a first convex hull near the first end, and the moving contact is located on the surface of the first convex hull. The first surface is also the surface of the active layer, and the second surface is also the surface of the passive layer.

[0162] The first convex bump serves as a convex rib on the deformable piece 4 , and can enhance the rigidity of the deformable piece 4 near the moving contact point.

[0163] Theoretically, the first convex bump can be located on the first surface of the deformable sheet 4, or on the second surface of the deformable sheet 4. However, since there is a moving contact (generally formed by silver plating) on ​​the first surface, the first convex bump is located on the first surface, and the moving contact is located on the first convex bump, which can reduce the thickness of the silver layer deposited on the first convex bump. If the first convex bump is located on the second surface, then there is a depression on the second surface, and a moving contact is formed in the depression, which requires plating a relatively thick silver layer.

[0164] Continue to refer Fig.12 As shown, the deformable piece 4 has a second convex bulge at a position close to the second end, and the deformable piece 4 is fixedly connected to the portion of the second terminal 3 extending into the housing at the position of the second convex bulge.

[0165] The second convex bump also serves as a convex rib on the deformable piece 4 , which can enhance the rigidity of the deformable piece 4 near the second end, making the fixing relationship between the deformable piece 4 and the second terminal 3 more firmly.

[0166] In one example, the second convex hull of the deformable sheet 4 near the second end may be arranged on the first surface or on the second surface. If the first surface of the deformable sheet 4 is fixed to the second terminal 3, the second convex hull is formed on the first surface; if the second surface of the deformable sheet 4 is fixed to the second terminal 3, the second convex hull is formed on the second surface.

[0167] It should be noted that the first terminal and the second terminal are located on the same side of the deformable sheet 4. Figure 7 As shown, the size of the overload protection module in the width direction can be reduced.

[0168] refer to Fig.12As shown, the deformable sheet 4 has a third convex bump on the second surface along the thickness direction and in the middle part. The third convex bump is a pot-shaped protrusion, so the deformable sheet 4 is also called a pot sheet.

[0169] The third convex bump in the middle area of ​​the deformable piece 4 can be formed on the first surface of the deformable piece 4 or on the second surface of the deformable piece 4. The convex direction is the same as the spring-opening direction, which can resist the spring-opening. Therefore, the third convex bump can be located on the second surface, and its convex direction is consistent with the spring-opening direction, so as to improve the overall rigidity of the deformable piece 4.

[0170] In this way, under the action of the third bulge in the middle area of ​​the deformation piece 4 and the first bulge where the moving contact is located, the rigidity of the deformation piece 4 is relatively large, so that the deformation piece 4 will only deform instantly when the temperature is higher than the preset temperature threshold, causing the moving contact to instantly bounce away relative to the first terminal.

[0171] Under the action of the second convex bump, the fixation of the deformable sheet 4 to the second terminal is more firmly. Furthermore, during the long-term use of the overload protection module, after the deformable sheet 4 is deformed many times, the fixing relationship between the deformable sheet 4 and the second terminal is still relatively firmly.

[0172] refer to Fig.10 As shown, the overload protection module may further include a reset mechanism. After the deformable piece 4 is reset, the first terminal and the second terminal are connected again under the action of the reset structure.

[0173] Next, the characteristics of the reset mechanism are described.

[0174] refer to Fig.10 As shown, the reset mechanism includes a reset rod 5 and an elastic member 6, and the elastic member 6 is exemplified by a spring. The bottom of the reset rod 5 extends into the housing, and the top portion of the reset rod 5 serves as a reset button 511 of the overload protection module, so the top portion of the reset rod 5 passes through the housing and is exposed through the socket housing. The elastic member 6 is compressed between the bottom of the reset rod 5 and the bottom of the housing.

[0175] like Fig.15 FIG. 5 is a schematic diagram of the structure of the reset rod 5. The bottom of the reset rod 5 has a spacer 523. When the reset button 511 is in the pressed state, Fig.14 As shown, the spacer 523 is located between the moving contact and the bottom of the shell, so that the moving contact and the static contact are in contact. When the reset button 511 is not pressed, the spacer 523 is located between the moving contact and the static contact, realizing electrical isolation between the moving contact and the static contact.

[0176] For example, the current passing through the circuit where the overload protection module is located is relatively large, generating a large amount of heat, causing the temperature inside the overload protection module to be higher than the preset temperature threshold, and the deformation piece 4 is deformed, and the moving contact is bounced relative to the first terminal. At this time, the reset rod 5 moves upward under the action of the elastic member 6, and moves to the spacer 523 of the reset rod 5, which is opposite to and in contact with the static contact. When the temperature inside the overload protection module cools down, the deformation piece 4 is reset, but at this time, the moving contact and the static contact are separated by the spacer 523 of the reset rod 5, so the user needs to press the reset button 511 to move the reset rod 5 downward until the spacer 523 of the reset rod 5 is located below the moving contact and no longer between the moving contact and the static contact. At this time, the moving contact and the static contact resume the contact state, and the overload protection module resumes the connected state.

[0177] Since the deformable sheet 4 where the moving contact is located is below the reset rod 5, and the elastic member 6 is also below the reset rod 5, in order to reasonably arrange the positional relationship between the reset rod 5, the deformable sheet 4 and the elastic member 6, refer to Fig.15 As shown, the reset rod 5 includes a first rod portion 51 and a second rod portion 52. The second rod portion 52 is connected to the bottom of the first rod portion 51 (the side close to the bottom of the shell is called the bottom), and the axes of the first rod portion 51 and the second rod portion 52 are parallel but not overlapped.

[0178] The outer surface of the second rod portion 52 has a first side rib 521 and a second side rib 522 extending away from the first rod portion 51, and the first side rib 521 and the second side rib 522 are arranged at intervals. The first side rib 521 and the second side rib 522 are used to insert and fix the reset rod 5 into the housing, which will be introduced later in the assembly.

[0179] The spacer 523 mentioned above is arranged at the bottom of the first side rib 521, wherein the first side rib 521 is also the side rib close to the moving contact after the reset rod 5 is installed in the housing.

[0180] Continue to refer Fig.15 As shown, a tangent plane is provided on a portion of the first rod portion 51 close to the second rod portion 52 , and the tangent plane is used to position the deformation piece 4 directly below the first rod portion 51 .

[0181] like Fig.16 As shown, the bottom shell 12 has a channel 123 for accommodating the elastic member 6 at a position close to the first shell wall, wherein the first shell wall is the shell wall on the side where the second terminal 3 is located. The elastic member 6 can be limited in the channel 123 to avoid lateral deformation during telescopic movement.

[0182] The elastic member 6 may be a spring, which is cylindrical, so Fig.16 As shown, the inner surface of the channel 123 is a cylindrical surface. Since one inner wall of the channel 123 is the inner surface of the first shell wall of the bottom shell 12, Fig.16 As shown, the first shell wall is a cylindrical surface at the location corresponding to the channel 123 .

[0183] refer to Fig.16 As shown, the channel wall of the channel 123 has a first channel opening and a second channel opening that penetrate the channel 123 in the height direction. The first channel opening is adapted to the first side rib 521 of the reset rod 5, and the second channel opening is adapted to the second side rib 522 of the reset rod 5. When the reset rod 5 is installed into the shell, the first side rib 521 is snapped into the first channel opening, and the second side rib 522 is snapped into the second channel opening, so that the reset rod 5 is snapped into the shell.

[0184] like Fig.16 As shown, the channel 123 has a tangent plane, wherein the reference Fig.17 As shown, the tangent plane of the first rod portion 51 of the reset rod 5 is coplanar with the tangent plane of the channel 123 .

[0185] like Fig.16 And refer to Fig.17 As shown, the first side rib 521 of the reset rod 5 is inserted into the first channel opening, and the second side rib 522 is inserted into the second channel opening, which also helps to make the tangent plane of the reset rod 5 coplanar with the tangent plane of the channel 123 .

[0186] The tangent plane of the reset rod 5 and the tangent plane of the channel 123 are used to make the deformation piece 4 located below the first rod portion 51, which helps to make the position of the spacer 523 correspond to the area between the moving contact and the static contact, and also helps to reduce the size of the overload protection module in the width direction.

[0187] like Fig.16 And refer to Fig.17 As shown, the bottom of the bottom shell 12 has a slot for limiting the spacer 523 of the reset rod 5. After the reset rod 5 is installed in the bottom shell 12 and installed to the bottom, the spacer 523 of the reset rod 5 is located in the slot. The slot has a trumpet-shaped opening, so that when the reset button 511 is pressed, the spacer 523 is smoothly inserted into the slot, so that the reset button 511 is not easily stuck.

[0188] Since the elastic member 6 is compressed between the second rod portion 52 of the reset rod 5 and the bottom of the housing, if the elastic member 6 is installed first during assembly, the reset rod 5 will be pushed open by the elastic member 6, which brings certain difficulties to assembly and is not easy to realize automated assembly. Accordingly, the elastic member 6 can be installed in the housing after the upper cover 11 and the bottom shell 12 of the housing are assembled. Fig.18As shown, the bottom of the shell has a mounting opening 124 at a position corresponding to the channel 123. After the upper cover 11 and the bottom shell 12 are fixed, the overload protection module is turned upside down, and the elastic member 6 is installed into the channel 123 inside the shell from the mounting opening 124 at the bottom of the shell, and then the sealing plug 7 is used to block the mounting opening 124. At this time, the elastic member 6 is compressed between the reset rod 5 and the sealing plug 7. Because the bottom of the shell is fixed in the socket shell, even if the interference effect of the sealing plug 7 with the mounting opening 124 is weak, the elastic member 6 will not fall off from the shell.

[0189] You can refer to Fig.18 As shown, the sealing plug 7 is cylindrical in shape, while the mounting opening 124 is quadrilateral in shape. The cylindrical sealing plug 7 cooperates with the quadrilateral mounting opening 124 , so that the sealing plug 7 can be more easily interference-fitted into the mounting opening 124 .

[0190] The sealing plug 7 may be made of rubber or plastic. In addition, due to the hollow area, the sealing plug 7 will be radially deformed when inserted into the installation opening 124 , thereby interfering with the installation opening 124 .

[0191] In one example, the installation opening 124 for loading the sealing plug 7 can be set on the bottom wall of the housing. In another example, refer to Fig.18 As shown, the bottom outer surface of the shell has a square channel, and the sealing plug 7 can be plugged into the square channel.

[0192] refer to Fig.18 As shown, since the bottom of the shell has a square channel protruding from the bottom outer surface, the bottom inner surface of the socket shell has a square groove. When the overload protection module is assembled in the socket shell, the square channel is located in the square groove.

[0193] Next, the features of the upper cover 11 and the bottom shell 12 of the housing, and the matching relationship between the two are introduced.

[0194] The upper cover 11 and the bottom shell 12 can be fixed by a snap-fitting manner, and the bottom end of the upper cover 11 and the top end of the bottom shell 12 have a snap-fitting structure that cooperates with each other. Fig.19 As shown, the bottom end of the upper cover 11 has a circular column, and the top end of the bottom shell 12 has a square hole, which can be a through hole that passes through the height of the bottom shell 12 or a blind hole that does not pass through the height of the bottom shell 12.

[0195] The bottom surface of the circular column at the bottom end of the upper cover 11 is a spherical surface, and the top end of the square hole has a cut surface, so that the circular column can be smoothly inserted into the square hole, thereby improving assembly efficiency.

[0196] The number of the clamping structures of the upper cover 11 and the bottom shell 12 is not limited. For example, one clamping structure is arranged at each of the four corners.

[0197] As described above, the front end wall of the bottom shell 12 has a first opening 121, and the top of the first opening 121 is a trumpet-shaped opening. After the first terminal 2 is inserted into the first opening 121, it can be filled by the corresponding protrusion structure 111 on the upper cover 11. Fig.19 As shown, the bottom end of the upper cover 11 has a protruding structure 111 at a position corresponding to the first opening 121 of the bottom shell 12. Fig. 20 As shown, after the upper cover 11 is buckled onto the bottom shell 12 , the protruding structure 111 at the bottom end of the upper cover 11 is located in the first opening 121 of the front shell wall of the bottom shell 12 , which also plays the role of crimping the first terminal 2 stuck in the first opening 121 .

[0198] Likewise, reference Fig.21 As shown, the outer surface of the side wall of the upper cover 11 has a convex structure 112 at the bottom position, and the convex structure 112 includes a first convex block 1121 and a second convex block 1122, wherein the first convex block 1121 is located on the outer surface of the side wall of the upper cover 11, the second convex block 1122 is connected to the outer surface of the first convex block 1121, and the inner surface of the first convex block 1121 has a convex rib 1123, Fig. 22 As shown, after the upper cover 11 is buckled onto the bottom shell 12, the first protrusion 1121 is located on the outer surface of the first shell wall of the bottom shell 12, the rib 1123 on the inner surface of the first protrusion 1121 is stuck in the second opening 122 of the first shell wall, the second protrusion 1122 is located on the outer surface of the third conductive sheet 33 of the second terminal 3, and the steps of the first protrusion 1121 and the second protrusion 1122 are pressed on the top of the second conductive sheet 32 ​​of the second terminal 3. Thus, under the action of the protrusion structure 112 on the upper cover 11, the second terminal 3 is fixed in the shell, and the second terminal 3 is fixed together with the second end of the deformable sheet 4, so the deformable sheet 4 is also firmly fixed in the shell.

[0199] Then, after the upper cover 11 is fixed on the bottom shell 12, the raised structure 111 at the bottom end of the upper cover 11 extends into the first opening 121 of the bottom shell 12, and is crimped onto the first terminal stuck in the first opening 121, so that the first terminal is firmly fixed in the shell, and the protrusion structure 112 at the bottom end of the upper cover 11 is crimped onto the second terminal stuck in the second opening 122, so that the second terminal and the deformation piece 4 fixed to the second terminal are firmly fixed in the shell.

[0200] Next, the assembly process of the overload protection module is introduced based on the characteristics of the overload protection module.

[0201] Step 1: Install the fixed deformation piece 4 and the second terminal 3 into the bottom shell 12.

[0202] First, fix the second end of the deformable sheet 4 away from the moving contact to the second terminal (refer to Fig.12 Then, the conductive sheet of the second terminal 3 is inserted into the second opening 122 of the bottom shell 12, and the deformable sheet 4 and the fixed position of the second terminal are inserted into the slot of the bottom shell 12 together. After being pushed to the bottom, the deformable sheet 4 and the second terminal are installed.

[0203] Step 2: Install the reset rod 5 into the bottom shell 12.

[0204] For example, the first side rib 521 of the reset rod 5 is aligned with the first channel opening of the bottom shell 12, and the second side rib 522 of the reset rod 5 is aligned with the second channel opening of the bottom shell 12, the reset rod 5 is inserted to the bottom, and at least one of the first side rib 521, the second side rib 522 and the spacer 523 contacts the bottom of the bottom shell 12, and the reset rod 5 is installed.

[0205] Step three: install the first terminal 2 into the bottom shell 12.

[0206] For example, a conductive sheet of the first terminal is inserted into the first opening 121 of the bottom shell 12, and the installation is completed when it is inserted to the bottom.

[0207] Step 4: snap the upper cover 11 onto the bottom shell 12 .

[0208] The upper cover 11 has a through hole that penetrates the thickness, and the diameter of the through hole is larger than the outer diameter of the reset rod 5 .

[0209] Then, the through hole of the upper cover 11 is sleeved on the reset rod 5, the circular column at the bottom end of the upper cover 11 is aligned with the square hole at the top end of the bottom shell 12, each circular column is inserted into the corresponding square hole, the raised structure 111 at the bottom end of the upper cover 11 is inserted into the first opening 121 where the first terminal is inserted, the raised structure 111 is crimped onto the first terminal, the bump structure 112 at the bottom end of the upper cover 11 is inserted into the second opening 122 where the second terminal is inserted, and the bump structure 112 is crimped onto the second terminal.

[0210] Step five: install the elastic member 6 into the housing through the installation opening 124 at the bottom of the bottom housing 12 .

[0211] Step six, insert the sealing plug 7 into the installation opening 124 , at which time, the elastic member 6 is compressed between the sealing plug 7 and the reset rod 5 .

[0212] In the disclosed embodiment, the reset button and the switch button of the socket are exposed through the same surface of the socket housing, for example, both are exposed through the panel of the socket, and the position of the reset button is relatively conspicuous. With this arrangement, after the socket loses power due to overload and returns to normal, if the socket is still not powered on after the user presses the switch button, then the user will naturally press the reset button next to the switch button, thereby enhancing the user experience.

[0213] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A socket, characterized in that: It comprises a socket housing (100), a socket assembly (200), a switch module (300) and an overload protection module (400); The socket assembly (200), the switch module (300) and the overload protection module (400) are all located in the socket housing (100), and the reset button (511) of the overload protection module (400) and the switch button (301) of the switch module (300) are exposed through the same surface of the socket housing (100); The second pole of the socket assembly (200) is used to be electrically connected to the second pole conductor of the power line, the first pole of the socket assembly (200), the switch module (300) and the overload protection module (400) are electrically connected in sequence, and the overload protection module (400) is used to be electrically connected to the first pole conductor of the power line.

2. The socket according to claim 1, characterized in that: The reset button (511) of the overload protection module (400) and the switch button (301) of the switch module (300) are both exposed through the socket surface of the socket housing (100), wherein the socket surface is the front side of the socket housing (100) having the socket.

3. The socket according to claim 1, characterized in that: The overload protection module (400) comprises a first wiring terminal (2) and a second wiring terminal (3); the overload protection module (400) is in the shape of an elongated strip, the first wiring terminal (2) is located at one end of the overload protection module (400) along the length direction, and the second wiring terminal (3) is located at one side of the overload protection module along the width direction.

4. The socket according to claim 3, characterized in that: The number of the switch module (300) is one, and the switch module (300) and the overload protection module (400) are both located between the socket assembly (200) and the power line hole of the socket housing (100); The angle between the length direction of the switch module (300) and the length direction of the socket is greater than 0 degrees and less than 90 degrees; The first side of the switch module (300) facing the socket assembly (200) has a first wiring terminal at a position close to the first end in the length direction, and has a second wiring terminal at a position close to the second end in the length direction; The first connection terminal of the switch module (300) is connected to the first pole copper bar of the socket assembly (200), the first connection terminal (2) of the overload protection module (400) extends into the area between the first pole copper bar of the socket assembly (200) and the first side of the switch module (300), and is connected to the second connection terminal of the switch module (300), and the second connection terminal (3) of the overload protection module (400) faces the power line hole and is used to be connected to the first pole conductor of the power line.

5. The socket according to claim 4, characterized in that: The length direction of the overload protection module is parallel to the length direction of the switch module.

6. The socket according to claim 4, characterized in that: The switch button (301) and the reset button (511) are distributed front and back in the width direction of the socket.

7. The socket according to claim 3, characterized in that: The socket assembly (200) comprises a row of sockets, the socket comprises a row of switch modules, the row of sockets and the row of switch modules are arranged in the socket housing, and the arrangement direction of the sockets and the switch modules is parallel to the width direction of the socket; The overload protection module is located between the row of switch modules and the front shell wall of the socket housing (100), and the first wiring terminal (2) of the overload protection module located at the end is close to the power line hole on the front shell wall, and the second wiring terminal (3) of the overload protection module located at the side is close to the switch module; The first connection terminal of each switch module in the row of switch modules is connected to the first pole of a socket, and the second connection terminal of each switch module is connected to the second connection terminal of the overload protection module.

8. The socket according to claim 7, characterized in that: The second connection terminal of each switch module in the row of switch modules is connected to a conductive bar, and the end of the conductive bar close to the overload protection module is connected to the second connection terminal of the overload protection module.

9. The socket according to claim 7, characterized in that: The switch button and the reset button are distributed front and back in the length direction of the socket.

10. The socket according to claim 3, characterized in that: The first wiring terminal (2) of the overload protection module has a wiring hole and a wiring protrusion; When the first wiring terminal (2) is used to electrically connect to the first polar conductor of the power line, the wiring hole of the first wiring terminal (2) is used to electrically connect to the first polar conductor of the power line; When the first wiring terminal (2) is electrically connected to the switch module (300), the wiring protrusion of the first wiring terminal (2) is electrically connected to the switch module (300).

11. The socket according to claim 3, characterized in that: The second wiring terminal (3) has a wiring hole and a wiring protrusion; When the second wiring terminal (3) is electrically connected to the first polar conductor of the power line, the wiring hole of the second wiring terminal is electrically connected to the first polar conductor of the power line; When the second wiring terminal (3) is electrically connected to the switch module (300), the wiring protrusion of the second wiring terminal (3) is electrically connected to the switch module.

12. The socket according to claim 10 or 11, characterized in that: The plane where the wiring hole is located is parallel to the jack surface of the socket, and the protrusion direction of the wiring protrusion is perpendicular to the jack surface of the socket, wherein the jack surface is the front side of the socket housing with the jack.

13. The socket according to claim 10 or 11, characterized in that: The wiring terminal having the wiring hole and the wiring protrusion comprises a first wiring piece, a second wiring piece and a third wiring piece; The shell wall of the overload protection module has an opening adapted to the thickness of the first terminal lug, the first terminal lug is stuck in the opening, a part of the first terminal lug is located in the shell, and another part of the first terminal lug protrudes from the shell; The second terminal piece and the third terminal piece are both connected to the edge of the first terminal piece extending out of the other part of the housing, the terminal hole is arranged on the second terminal piece, and the terminal protrusion is arranged on the third terminal piece.

14. The socket according to claim 13, characterized in that The first connecting piece is an L-shaped sheet structure including a first conductive sheet and a second conductive sheet, a portion of the first conductive sheet is located in the housing, and another portion extends out of the housing, and the second conductive sheet is located outside the housing; The second terminal piece and the third terminal piece are both connected to the edge of the first terminal piece facing the bottom surface of the housing, and one is connected to the edge of the first conductive piece, and the other is connected to the edge of the second conductive piece.

15. The socket according to claim 13, characterized in that The first connecting piece, the second connecting piece and the third connecting piece are integrally formed.

16. The socket according to claim 1, characterized in that The overload protection module comprises a housing (1), a first wiring terminal (2), a second wiring terminal (3) and a deformation piece (4); The first surface of the deformable piece (4) and a position close to the first end of the deformable piece (4) have a moving contact, and a portion of the deformable piece (4) close to the second end is fixed in the housing (1); A portion of the first terminal (2) extends into the housing, and another portion extends out of the housing, and a static contact is provided on the portion of the first terminal (2) extending into the housing; A portion of the second terminal (3) extends into the housing, and another portion extends out of the housing, and the portion of the second terminal (3) extending into the housing is fixedly connected to a portion of the deformable sheet (4) close to the second end; When the deformable sheet (4) is not deformed, the moving contact is in contact with the static contact; when the deformable sheet (4) is deformed, the moving contact is separated from the static contact.

17. The socket according to claim 16, characterized in that Of the portion of the first terminal (2) extending out of the housing (1) and the portion of the second terminal (3) extending out of the housing (1), one is used to be electrically connected to the switch module, and the other is used to be electrically connected to the first pole conductor of the power line.

18. The socket according to claim 16, characterized in that The first surface of the deformable piece (4) has a first convex bulge at a position close to the first end, and the moving contact is located on the surface of the first convex bulge.

19. The socket according to claim 16, characterized in that The deformable sheet (4) has a second convex bump at a position close to the second end, and the deformable sheet (4) is fixedly connected to the portion of the second terminal extending into the housing at the position of the second convex bump.

20. The socket according to claim 16, characterized in that The deformation piece (4) has a third convex bulge on the second surface along the thickness direction and in the middle part.

21. The socket according to claim 16, characterized in that The overload protection module also includes a reset rod (5); The reset rod (5) is installed in the housing (1), and the reset button (511) is arranged on the top of the reset rod (5), and the reset button (511) is exposed through the socket housing; When the deformable sheet (4) is not deformed and the reset button (511) is in a pressed state, the moving contact is in contact with the static contact.

22. The socket according to claim 21, characterized in that The overload protection module further comprises an elastic member (6), wherein the elastic member (6) is compressed between the bottom of the housing (1) and the bottom of the reset rod (5); When the deformable sheet (4) is deformed, the moving contact is separated from the static contact, and the reset button (511) pops up under the action of the elastic member (6), and the spacer (523) at the bottom of the reset rod (5) contacts the static contact.

23. The socket according to claim 22, characterized in that The housing of the overload protection module has a channel (123), the bottom of the housing (1) has a mounting opening (124) at a position corresponding to the channel (123), and the elastic member (6) is located in the channel (123); The overload protection module further comprises a sealing plug (7), wherein the sealing plug (7) is sealed in the installation opening (124), and the elastic member (6) is compressed between the sealing plug (7) and the reset rod (5).

24. The socket according to claim 23, characterized in that The sealing plug (7) is cylindrical in shape, and the mounting opening (124) is quadrilateral in shape.

25. The socket according to claim 1, characterized in that The third pole of the socket assembly (200) is used to be electrically connected to the third pole conductor of the power line.

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