Switch socket with overload protection function

Abstract

The utility model relates to the technical field of switch sockets, and provides a switch socket with an overload protection function, which utilizes the characteristics of an elastic piece, is matched with a rotating switch module, disconnects / connects an electric loop formed by an electric connection piece, an elastic piece and an electric receiving piece by enabling the elastic piece to be far away from or in contact with the conductive end of the electric receiving piece, integrates switch control and socket electricity taking, and is simple in structure and convenient to use. The miniaturization of the product is facilitated, and the manufacturing cost of the product is further reduced. And meanwhile, based on the thermal deformation characteristic of the elastic piece, when the circuit is overloaded, the rotary switch module is reversely driven to rotate to be far away from the conductive end of the power receiving piece, so that automatic disconnection protection of overload is realized, the structure is simple, and the circuit safety is high. The output electrode connected with other loads is arranged at one end, far away from the conductive end, of the power receiving part, and when other loads exceed the load, the elastic part is driven to thermally deform to execute overload protection, so that the whole product is protected from being overloaded, and the manufacturing cost is further reduced while the overload protection function of the product is ensured.

Description

Technical Field

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

[0002] Socket, also known as power socket, switch socket. Socket refers to a seat that can be inserted with one or more circuit wiring. Various wiring can be inserted through it, which is convenient for connecting with other circuits. Through the connection and disconnection between the line and the copper parts, the connection and disconnection of this part of the circuit can be achieved.

[0003] A switch socket is a socket that can conveniently control the connection and disconnection of the power circuit. At present, the implementation method of the overload protection function of the socket module is basically separate, and the most common ones are the following:

[0004] First, a switch + socket combination with overload protection;

[0005] Second, use an independent overload protector + socket combination;

[0006] Third, electronic overload protection, which is mainly achieved by designing a separate circuit board. The circuit board has the function of detecting the socket load, and the overload protection function of the socket is realized by disconnecting the relay when overloaded;

[0007] The above-mentioned separate socket overload protection functions all use independent components and internal wiring to achieve the socket overload protection function. The disadvantages are: high cost, large size, and poor consumer experience. Utility Model Content

[0008] The utility model provides a switch socket with an overload protection function, which solves the technical problems that the existing separate overload protection solutions of the switch sockets are high in cost and large in size and cannot meet the needs of users.

[0009] In order to solve the above technical problems, the utility model provides a switch socket with overload protection function, comprising:

[0010] Socket body;

[0011] A rotary switch module rotatably mounted on the upper portion of the socket body;

[0012] A socket assembly fixedly mounted in the socket body, the socket assembly comprising a power receiving part and a power receiving part; the power receiving part is fixedly mounted in the middle of the socket body, and the lower part is connected to an external power source; the power receiving part is arranged in the socket body, and its conductive end is located below the rotary switch module, and an end away from its conductive end is also provided with an output pole connected to other loads;

[0013] An elastic member, one end of which is mounted on the power receiving member, and the other end of which is embedded in the conductive end of the rotary switch module and faces the power receiving member;

[0014] The rotary switch module is rotated, and then the elastic member is moved to make it contact the conductive end of the power receiving member. At this time, the power receiving member, the elastic member and the power receiving member are connected in sequence, and the circuit is in an on state; when the circuit is overloaded, the elastic member is thermally deformed, driving the rotary switch module to rotate in the reverse direction and away from the conductive end of the power receiving member, and the circuit is in an off state.

[0015] The beneficial effects of this basic program are as follows:

[0016] (1) By utilizing the inherent characteristics of the elastic member and cooperating with the rotating switch module, the elastic member is moved away from or in contact with the conductive end of the power receiving member, thereby disconnecting / connecting the power circuit composed of the power receiving member, the elastic member and the power receiving member. The switch control and the power supply of the socket are integrated, which is conducive to the miniaturization of the product and further reduces the manufacturing cost of the product.

[0017] (2) At the same time, based on the thermal deformation characteristics of the elastic member, when a circuit overload occurs, the rotary switch module is driven in the reverse direction to rotate away from the conductive end of the receiving component to achieve automatic disconnection protection for overload, with a simple structure and high circuit safety.

[0018] (3) An output pole connected to other loads is provided at one end of the power receiving component away from its conductive end. When the other load exceeds the load, the elastic component is also driven to thermally deform to perform overload protection, thereby protecting the entire product from overload. While ensuring the product overload protection function, the manufacturing cost is further reduced.

[0019] In a further embodiment, the elastic member is a thermal bimetallic strip, one end of which is fixedly mounted on the power receiving member; the other end is vertically embedded in the rotary switch module, and a silver riveting point is provided on the side of the conductive end facing the power receiving member;

[0020] The rotary switch module is rotated to move the elastic member so that the riveted silver point of the elastic member contacts / moves away from the conductive end, and the circuit is connected / disconnected; when the circuit is overloaded, the elastic member undergoes thermal deformation and bends in a direction away from the conductive end, away from the conductive end, and performs overload circuit breaker protection.

[0021] This solution uses a thermal bimetallic strip as a bridge to connect the power receiving part and the power connecting part. When the circuit is overloaded, it will deform due to heat, and rely on the deformation force to move away from the conductive end, automatically executing overload circuit breaking. It can sense in real time and respond quickly according to the internal temperature during use, with high sensitivity, simple structure and low cost.

[0022] In a further embodiment, the power receiving part includes a socket E-pole socket, and a socket N-pole socket and a socket L-pole socket respectively arranged on both sides of the socket E-pole socket; one end of the socket L-pole socket is close to the socket E-pole socket, and its lower part is led downward to form an output pole connected to other loads; the other end of the socket L-pole socket extends outward and leads upward to form a vertical conductive end, and a silver riveting point is arranged on the end of the conductive end close to the side of the elastic member;

[0023] Other loads are connected in series with the corresponding sockets through the output poles. When the corresponding sockets or other loads are overloaded, the elastic member is thermally deformed, driving the rotary switch module to rotate in the opposite direction and away from the conductive end, while disconnecting the power input of other loads, and the circuit is in a disconnected state. In a further embodiment, the power connection member includes an L-pole incoming line plug, which is vertically installed in the central area of ​​the socket body, and its lower part is electrically connected to the external circuit, and the elastic member is laterally fixed to one side of the upper part;

[0024] Driven by the rotary switch module, the elastic member performs a swinging motion with the L-pole incoming line plug as the center of the circle.

[0025] This solution sets up an L-pole conductive mechanism, sets a lead-out conductive end for contact control, uses an elastic member as a bridge, and swings the active end of the elastic member to make it contact or separate with the L-pole socket sleeve of the socket, thereby realizing the circuit conduction between the L-pole socket sleeve and the L-pole incoming line plug. While realizing the socket switch control, it also realizes the overload protection function, and the product has high integration. At the same time, an output pole connected to other ordinary sockets (other loads) is set to realize the overall overload protection of the product, further improving the safety of product use.

[0026] In a further embodiment, the rotary switch module comprises a switch ring, the switch ring is a circular ring structure, the top inner ring is concave downward to form a mounting groove, and the lower inner side wall is provided with a downwardly protruding mounting piece;

[0027] The mounting member comprises a mounting block and two groups of guide posts symmetrically arranged on the back of the mounting block, with a gap formed between the two groups of guide posts;

[0028] The side of the guide pillar facing the gap is arched outward to form a curved surface structure to clamp the elastic member, and the lower part of the curved surface structure slowly shrinks downward to embed the elastic member.

[0029] In order to meet the swinging and bending requirements of the elastic part, this solution sets two parallel sets of guide pillars to flexibly install the elastic part. The curved surface structure still maintains a clamping relationship when the elastic part swings without destroying the structure of the elastic part, thereby ensuring that the switch ring can stably drive the elastic part and ensure the stable execution of the switch action; setting a slowly shrinking gap entrance can also assist in the safety of the elastic part.

[0030] In a further embodiment, the utility model also includes a display component, which includes an LED light board and a light guide; the LED light board is electrically connected to the power receiving component and includes a plurality of LED lamp beads; the LED light board is embedded in the light guide and has an opening in the middle to avoid the socket component.

[0031] This solution sets an LED light as a switch display, which can intuitively show whether the user's socket is turned on.

[0032] In a further embodiment, the rear end of the socket N-pole socket sleeve is provided with a first connection block protruding upward, and the rear end of the socket L-pole socket sleeve is provided with a second connection block protruding upward;

[0033] The inner circle of the LED lamp board is recessed outward to form two connection grooves, and the two connection grooves are respectively embedded in the first connection block and the second connection block;

[0034] Alternatively, the display assembly further comprises two power-connecting springs, the lower parts of the two power-connecting springs are respectively sleeved on the first connecting block and the second connecting block, and the upper parts thereof abut against the back side of the LED light board.

[0035] In this solution, a first connecting block and a second connecting block are respectively arranged at the rear ends of the N-pole socket and the L-pole socket of the socket, and the electrical connection between the socket assembly and the display assembly is achieved by welding them into the connecting groove of the LED light board or by using the power connection spring to abut against the LED light board, thereby reducing the connection arrangement of the wires and further reducing the weight and volume of the product.

[0036] In a further embodiment, the socket assembly further comprises an inner bracket of the socket, on which the power receiving part and the power receiving part are mounted;

[0037] The socket body includes a protection door module, which includes two flat protection doors, three flat protection doors, a protection door spring and a protection door bracket. The two flat protection doors and the three flat protection doors are movably installed on both sides of the top surface of the protection door bracket; the side surfaces of the two flat protection doors and the three flat protection doors are relatively provided with protruding positioning columns, and the two ends of the protection door spring are respectively embedded in the positioning columns of the two flat protection doors and the positioning columns of the three flat protection doors.

[0038] In a further embodiment, the socket body includes a panel and a back seat, the panel is buckled with the protective door bracket, and the protective door bracket covers the back seat up and down; the first buckle position and the second buckle position protruding downward are provided at both ends of the back of the panel, and the first buckle position and the second buckle position are U-shaped card slots;

[0039] The two ends of the upper part of the protection door bracket are provided with a first buckle and a second buckle protruding outward; the first buckle is buckled with the first buckle position, and the second buckle is buckled with the second buckle position.

[0040] In a further embodiment, the socket assembly further comprises a wiring terminal and a crimping screw, and the L-pole incoming wire plug, the socket N-pole socket sleeve, the socket E-pole socket sleeve and the output pole are fixed to the wiring terminal by the crimping screw.

[0041] This solution is compatible with both terminal wiring and welding wire wiring, providing users with targeted service experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is an exploded diagram of a switch socket with an overload protection function provided in Embodiment 1 of the present utility model;

[0043] Figure 2 The utility model embodiment 1 provides Figure 1 Assembly structure diagram;

[0044] Figure 3 This is a schematic diagram of a rotary switch provided in Example 1 of the utility model;

[0045] Figure 4 This is a schematic diagram of overload circuit breaker protection provided by Example 1 of the utility model;

[0046] Figure 5 It is a partial structural diagram provided by Example 1 of the utility model;

[0047] Figure 6 This is a partial structural diagram of the switch swivel provided in Example 1 of the utility model;

[0048] Figure 7 It is a three-dimensional structural diagram of the L-pole socket provided in Example 1 of the utility model.

[0049] Figure 8 This is a semi-assembled schematic diagram provided by Embodiment 1 of the present utility model;

[0050] Fig. 9 It is a back view of the panel provided in Example 1 of the utility model;

[0051] Fig.10 This is a semi-assembled schematic diagram provided by Embodiment 2 of the present utility model;

[0052] Fig.11 This is an exploded view of a switch socket with overload protection function provided in Example 3 of the utility model.

[0053] Fig.12 The utility model embodiment 3 provides Fig.10 Assembly structure diagram.

[0054] Fig.13 These are other application types of the socket panel provided by the embodiments of the utility model.

[0055] Among them: power receiving part 1; power receiving part 2, socket E pole socket 21, socket N pole socket 22, socket L pole socket 23, conductive end 231, output pole 232; elastic part 3; switch swivel 4, mounting part 41; display component 5, LED light board 51, light guide 52; socket inner bracket 6; protection door module 7, two flat protection doors 71, three flat protection doors 72, protection door spring 73, protection door bracket 74; panel 8, first buckle position 81, second buckle position 82; rear seat 9;

[0056] Mounting block a, guide column b, curved surface structure c; first clip d, second clip e; wiring terminal f, wire pressing screw g; first connecting block h, second connecting block j; power spring k. DETAILED DESCRIPTION

[0057] The following is a detailed explanation of the implementation mode of the present invention in conjunction with the accompanying drawings. The embodiments are provided for illustrative purposes only and cannot be understood as limitations on the present invention. The accompanying drawings are provided for reference and illustration only and do not constitute limitations 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.

[0058] The present invention provides a switch socket with an overload protection function. Figures 1 to 9 As shown, in this embodiment, it includes:

[0059] Socket body;

[0060] A rotary switch module rotatably mounted on the upper portion of the socket body;

[0061] The socket assembly is fixedly installed in the socket body, and the socket assembly includes a power receiving part 1 and a power receiving part 2; the power receiving part 1 is fixedly installed in the middle of the socket body, and the lower part is connected to the external power supply; the power receiving part 2 is arranged in the socket body, and its conductive end 231 is located below the rotary switch module, and an end away from its conductive end 231 is also provided with an output pole 232 connected to other loads;

[0062] An elastic member 3, one end of which is mounted on the power receiving member 1, and the other end of which is embedded in a conductive end 231 mounted on the rotary switch module and facing the power receiving member 2;

[0063] See also Figure 3, the switch module is rotated, and then the elastic member 3 is moved to contact the conductive end 231 of the power receiving member 2. At this time, the power receiving member 1, the elastic member 3 and the power receiving member 2 are connected in sequence, and the circuit is in the connected state; Figure 4 When the circuit is overloaded, the elastic member 3 is thermally deformed, driving the rotary switch module to rotate in the reverse direction and away from the conductive end 231 of the power receiving member 2, and the circuit is in a disconnected state.

[0064] In this embodiment, the elastic member 3 is a thermal bimetallic strip, one end of which is fixedly mounted on the power receiving member 1; the other end is vertically embedded in the rotary switch module, and a silver riveting point is provided on the side of the conductive end 231 facing the power receiving member 2;

[0065] The rotary switch module rotates, thereby moving the elastic member 3, so that the riveted silver point of the elastic member 3 contacts / moves away from the conductive end 231, and the circuit is connected / disconnected; when the circuit is overloaded, the elastic member 3 undergoes thermal deformation and bends in a direction away from the conductive end 231, away from the conductive end 231, and performs overload circuit breaker protection.

[0066] This embodiment uses a thermal bimetallic strip as a bridge connecting the power receiving part 2 and the power receiving part 1. When the circuit is overloaded, it will deform due to heat, and rely on the deformation force to move away from the conductive end 231, automatically executing overload circuit breaking. It can sense in real time according to the internal temperature during use, respond quickly, have high sensitivity, simple structure and low cost.

[0067] In this embodiment, see Figure 5 , Figure 7 The power receiving part 2 includes a socket E-pole socket sleeve 21, and a socket N-pole socket sleeve 22 and a socket L-pole socket sleeve 23 respectively arranged on both sides of the socket E-pole socket sleeve 21; one end of the socket L-pole socket sleeve 23 is close to the socket E-pole socket sleeve 21, and its lower part is led downward to form an output pole 232 connected to other loads; the other end of the socket L-pole socket sleeve 23 extends outward and leads upward to form a vertical conductive end 231, and a silver riveting point is arranged on the end of the conductive end 231 close to the elastic member 3;

[0068] Other loads are connected in series with the corresponding sockets through the output pole 232. When the corresponding sockets or other loads are overloaded, the elastic member 3 is thermally deformed, driving the rotating switch module to rotate in the opposite direction and away from the conductive end 231, while disconnecting the power input of other loads, and the circuit is in a disconnected state. Among them, the output pole 232 is specially designed in the socket L-pole socket 23 for the L-pole connection of the next ordinary socket module without overload protection function (forming a series relationship with the socket to which the output pole 232 belongs). Because it has all the functions of an overload protection switch and an independent overload protector, when the switch socket of this embodiment is connected to the external power supply in the first order, the other socket modules connected to its rear end (i.e., the output pole 232) exceed the load, and the switch socket of this embodiment will also be disconnected, thereby protecting the overall product from overload. Specifically:

[0069] (1) The external power source is connected to the power receiving part 1, and the switch ring 4 is rotated clockwise. The elastic member 3 is deformed under the drive of the switch ring 4 and is connected to the conductive end 231 of the L-pole socket 23 of the socket. At this time, the L-pole socket 23 of the socket is in a conductive and energized state. If the plug of the load is inserted, the load can be powered and work can be started.

[0070] At the same time, other loads without overload protection function connected to the output pole 232 can also be powered and work; furthermore, the switch socket in this embodiment can provide overload protection for other sockets or other loads without overload protection function.

[0071] (2) When an overload occurs: After the above actions are completed, whether it is a load inserted into the socket of the present embodiment or a load inserted into a socket powered by the output pole 232 and without an overload protection function, if the current exceeds a certain limit due to excessive power consumption and the circuit is in an overload state, the elastic member 3 will be thermally deformed and deformed in a direction away from the conductive end 231 of the socket L-pole socket 23, thereby disconnecting the elastic member 3 and the socket L-pole socket 23 at the conductive end 231. In this way, even if the power connection member 1 is still connected to the external power supply at this time, because the elastic member 3 and the socket L-pole socket 23 are disconnected, the switch socket is in a circuit disconnected state.

[0072] At this time, the output pole 232 is powered off, and the socket without overload protection connected thereto is also powered off, thereby playing the role of overload protection. When overload occurs, the deformation of the elastic member 3 drives the switch ring to rotate counterclockwise, and the display assembly 5 is turned off.

[0073] When the overload is eliminated, the switch ring 4 is manually rotated clockwise again, and the elastic member 3 is deformed under the driving force of the switch ring 4 and is connected to the conductive end 231 of the L-pole socket again, and normal use can be restored.

[0074] In this embodiment, the power connection member 1 includes an L-pole incoming line plug, which is vertically installed in the central area of ​​the socket body, and its lower part is electrically connected to the external circuit, and an elastic member 3 is horizontally fixed on one side of the upper part;

[0075] Driven by the rotating switch module, the elastic member 3 performs a swinging motion with the L-pole incoming line plug as the center of the circle.

[0076] In this embodiment, an L-pole conductive mechanism is provided, and an extended conductive end 231 is provided for contact control. The elastic member 3 is used as a bridge, and the movable end of the elastic member 3 is swung to make it contact or separate with the L-pole socket 23 of the socket, so as to realize the circuit conduction between the L-pole socket 23 of the socket and the L-pole incoming line plug. While realizing the socket switch control, the overload protection function is also realized, and the product integration is high. At the same time, an output pole 232 connected to other ordinary sockets (other loads) is provided to realize the overall overload protection of the product, and further improve the safety of product use.

[0077] In this embodiment, see Figure 6 The rotary switch module includes a switch ring 4, which is a circular ring structure, the inner ring of the top is concave downward to form a mounting groove, and the lower inner wall is provided with a downwardly protruding mounting member 41;

[0078] The mounting member 41 includes a mounting block a and two sets of guide posts b symmetrically arranged on the back of the mounting block a, with a gap formed between the two sets of guide posts b;

[0079] The side of the guide pillar b facing the gap is arched outward to form a curved surface structure c to clamp the elastic member 3 , and the lower part of the curved surface structure c slowly shrinks downward to embed the elastic member 3 .

[0080] In order to meet the swinging and bending requirements of the elastic member 3, this embodiment provides two parallel sets of guide pillars b to movably install the elastic member 3. The curved surface structure c still maintains a clamping relationship when the elastic member 3 swings without destroying the structure of the elastic member 3, thereby ensuring that the switch ring 4 can stably drive the elastic member 3 and ensure the stable execution of the switching action; providing a slowly shrinking gap entrance can also assist in the safety of the elastic member 3.

[0081] In this embodiment, the utility model also includes a display component 5, which includes an LED light board 51 and a light guide 52; the LED light board 51 is electrically connected to the power receiving component 2 and includes a plurality of LED lamp beads; the LED light board 51 is embedded with the light guide 52, and the middle is opened to avoid the socket component.

[0082] In this embodiment, an LED light is provided as a switch display, which can intuitively show the user whether the socket is turned on.

[0083] In this embodiment, see Figure 8 The rear end of the socket N-pole socket sleeve 22 is provided with a first connecting block h protruding upwards, and the rear end of the socket L-pole socket sleeve 23 is provided with a second connecting block j protruding upwards;

[0084] The display component 5 also includes two power connection springs k, the lower parts of the two power connection springs k are respectively mounted on the first connecting block h and the second connecting block j, and the upper parts thereof are in contact with the back side of the LED light board 51. Specifically, a current flow hole is arranged on the LED light board, and the power connection springs k are aligned with the current flow hole during installation; after installation, the top heights of the first connecting block h and the second connecting block j are lower than the back height of the LED light board 51.

[0085] In this embodiment, a first connecting block h and a second connecting block j are respectively arranged at the rear ends of the socket N-pole socket 22 and the socket L-pole socket 23, and the electrical connection between the socket assembly and the display assembly 5 is realized by the abutment between the power connection spring k and the LED light board 51, thereby reducing the connection arrangement of the wires and further reducing the weight and volume of the product.

[0086] In this embodiment, the socket assembly further comprises a socket inner bracket 6, on which the power receiving part 1 and the power receiving part 2 are mounted;

[0087] The socket body includes a protection door module 7, which includes a two-flat protection door 71, a three-flat protection door 72, a protection door spring 73 and a protection door bracket 74. The two-flat protection doors 71 and the three-flat protection doors 72 are movably installed on both sides of the top surface of the protection door bracket 74; the side surfaces of the two-flat protection door 71 and the three-flat protection door 72 are relatively provided with protruding positioning columns, and the two ends of the protection door spring 73 are respectively nested on the positioning columns of the two-flat protection door 71 and the positioning columns of the three-flat protection door 72.

[0088] In this embodiment, the socket body includes a panel 8 and a rear seat 9, the panel 8 is buckled with the protective door bracket 74, and the protective door bracket 74 and the rear seat 9 are covered up and down; the two ends of the back of the panel 8 are provided with a first buckle position 81 and a second buckle position 82 protruding downward, and the first buckle position 81 and the second buckle position 82 are both U-shaped card slots;

[0089] A first buckle d and a second buckle e protruding outward are provided at two ends of the upper portion of the protection door bracket 74 ; the first buckle d is buckled with the first buckle position 81 , and the second buckle e is buckled with the second buckle position 82 .

[0090] In this embodiment, the socket assembly also includes a wiring terminal f and a crimping screw g, and the wiring terminal f is fixed with an L-pole incoming wire plug, a socket N-pole socket sleeve 22, a socket E-pole socket sleeve 21 and an output pole 232 by the crimping screw g.

[0091] Taking clockwise rotation conduction as an example, the working principle of this embodiment is as follows:

[0092] 1. Switch control

[0093] See also Figure 3As shown in FIG. I, the switch ring 4 is rotated clockwise, and the switch ring 4 moves the elastic member 3, and the elasticity of the thermal bimetallic strip itself is used to make it (the riveted silver point on the thermal bimetallic strip) and the socket L-pole plug sleeve 23 (riveted silver point) touch closely. At this time, when the external power supply is supplied to the L-pole (live wire) incoming line plug, the external power supply is energized through the L-pole incoming line plug, the thermal bimetallic strip, and the socket L-pole plug sleeve 23, and at the same time, the LED light board 51 is powered through the socket L-pole plug sleeve 23, and the indicator light is on. At this time, the load plug pin is inserted to realize the load power supply function.

[0094] Similarly, see Figure 3 In FIG. II, if the switch ring 4 is rotated counterclockwise, the switch ring 4 moves the elastic member 3, and the thermal bimetallic strip and the socket L-pole socket sleeve 23 are disconnected, and the socket has no power input.

[0095] 2. Overload protection

[0096] See also Figure 4 In Figure I, when the socket works normally, the riveted silver point on the thermal bimetallic strip and the socket L-pole socket sleeve 23 (riveted silver point) are in close contact.

[0097] See also Figure 4 In Figure II, when the socket or other sockets / other loads connected to the output pole 232 of the socket L-pole socket 23 are overloaded, the thermal bimetallic strip undergoes thermal deformation, and a counterclockwise deflection deformation occurs with the riveted position of the L-pole inlet piece as the center of the circle, and the thermal bimetallic strip drives the switch ring 4 to rotate counterclockwise. At the same time, the thermal bimetallic strip and the socket L-pole socket 23 are separated, so that the socket L-pole socket 23 is powered off, and at the same time, the LED light board 51 is powered off, and the indicator light goes out.

[0098] Even though the external power supply is still supplying power to the L-pole incoming line plug and the socket load plug is in the inserted state, the socket load is in the power-off state because the socket L-pole plug sleeve 23 is powered off, thereby achieving the effect of protecting the load.

[0099] When the overload fault is removed, the switch ring 4 is turned clockwise to restore the normal power supply state.

[0100] The beneficial effects of the embodiments of the present utility model are as follows:

[0101] (1) By utilizing the inherent characteristics of the elastic member 3 and cooperating with the rotating switch module, the elastic member 3 is moved away from or in contact with the conductive end 231 of the power receiving member 2 to disconnect / connect the power circuit composed of the power receiving member 1, the elastic member 3 and the power receiving member 2. The switch control and the socket power supply are integrated, which is conducive to the miniaturization of the product and further reduces the manufacturing cost of the product.

[0102] (2) Based on the thermal deformation characteristics of the elastic member 3, when a circuit overload occurs, the rotary switch module is driven in the reverse direction to rotate away from the conductive end 231 of the power receiving member 2, so as to realize automatic disconnection protection of overload, which has a simple structure and high circuit safety.

[0103] (3) An output pole 232 connected to other loads is provided on the power receiving component 2 at one end away from the conductive end 231 thereof. When the other load exceeds the load, the elastic component 3 is also driven to undergo thermal deformation to perform overload protection, thereby protecting the entire product from overload. While ensuring the product overload protection function, the manufacturing cost is further reduced.

[0104] Example 2

[0105] In this embodiment, a switch socket with an overload protection function is provided. Fig.10 , which is different from Example 1 in that the LED power supply structure is:

[0106] A first connecting block h protruding upward is provided at the rear end of the socket N-pole socket sleeve 22, and a second connecting block j protruding upward is provided at the rear end of the socket L-pole socket sleeve 23;

[0107] The inner circle of the LED light board 51 is recessed outward to form two connecting grooves, which are respectively embedded in the first connecting block h and the second connecting block j, that is, the first connecting block h / the second connecting block j are welded in the connecting grooves on the LED light board by spot soldering; after installation, the tops of the first connecting block h and the second connecting block j are higher than the plane of the LED light board 51.

[0108] In this embodiment, a first connecting block h and a second connecting block j are respectively arranged at the rear ends of the socket N-pole socket 22 and the socket L-pole socket 23, and the electrical connection between the socket assembly and the display assembly 5 is realized by engaging with the connecting groove of the LED light board 51, thereby reducing the connection arrangement of the wires and further reducing the weight and volume of the product.

[0109] Example 3

[0110] In this embodiment, a switch socket with an overload protection function is provided. Fig.11 , Fig.12 , which is different from Example 1 in that welding terminals are used for wiring, so the wiring terminals f of the L-pole incoming wire plug, the socket N-pole socket sleeve 22, the socket E-pole socket sleeve 21 and the output pole 232 are different from those in Example 1, and the ends of the welding terminals are open upward, so there is no need for wiring terminals f and wire-pressing screws g.

[0111] This embodiment is compatible with both terminal wiring and welding wire wiring, providing users with a targeted service experience.

[0112] join Fig.13As shown in Figures I and II, in this embodiment, the hole type of the socket panel 8 is not limited to the type of the drawings in the present utility model, such as the American standard socket hole type and the British standard socket hole type; specific hole types in other countries and regions are all covered by this patent.

[0113] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0114] 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. A switch socket with overload protection function, characterized in that: include: Socket body; A rotary switch module rotatably mounted on the upper portion of the socket body; A socket assembly fixedly mounted in the socket body, the socket assembly comprising a power receiving part and a power receiving part; the power receiving part is fixedly mounted in the middle of the socket body, and the lower part is connected to an external power source; the power receiving part is arranged in the socket body, and its conductive end is located below the rotary switch module, and an end away from its conductive end is also provided with an output pole connected to other loads; An elastic member, one end of which is mounted on the power receiving member, and the other end of which is embedded in the conductive end of the rotary switch module and faces the power receiving member; The rotary switch module is rotated, and then the elastic member is moved to make it contact the conductive end of the power receiving member. At this time, the power receiving member, the elastic member and the power receiving member are connected in sequence, and the circuit is in an on state; when the circuit is overloaded, the elastic member is thermally deformed, driving the rotary switch module to rotate in the reverse direction and away from the conductive end of the power receiving member, and the circuit is in an off state.

2. A switch socket with overload protection function as claimed in claim 1, characterized in that: The elastic member is a thermal bimetallic strip, one end of which is fixedly mounted on the power receiving member; the other end is vertically embedded in the rotary switch module, and a silver riveting point is provided on the side of the conductive end facing the power receiving member; The rotary switch module is rotated to move the elastic member so that the riveted silver point of the elastic member contacts / moves away from the conductive end, and the circuit is connected / disconnected; when the circuit is overloaded, the elastic member undergoes thermal deformation and bends in a direction away from the conductive end, away from the conductive end, and performs overload circuit breaker protection.

3. A switch socket with overload protection function as claimed in claim 2, characterized in that: The power receiving part includes a socket E-pole socket, and a socket N-pole socket and a socket L-pole socket respectively arranged on both sides of the socket E-pole socket; one end of the socket L-pole socket is close to the socket E-pole socket, and its lower part is led downward to form an output pole connected to other loads; the other end of the socket L-pole socket extends outward and leads upward to form a vertical conductive end, and a silver riveting point is arranged on the end of the conductive end close to the side of the elastic member; Other loads are connected in series with the corresponding sockets through the output poles. When the corresponding sockets or other loads are overloaded, the elastic member is thermally deformed, driving the rotary switch module to rotate in the opposite direction and away from the conductive end, while disconnecting the power input of other loads, and the circuit is in a disconnected state.

4. A switch socket with overload protection function as claimed in claim 1, characterized in that: The power connection member includes an L-pole inlet plug, which is vertically installed in the central area of ​​the socket body, the lower part of which is electrically connected to the external circuit, and the elastic member is horizontally fixed to one side of the upper part; Driven by the rotary switch module, the elastic member performs a swinging motion with the L-pole incoming line plug as the center of the circle.

5. A switch socket with overload protection function as claimed in claim 1, characterized in that: The rotary switch module comprises a switch ring, which is a circular ring structure, the top inner ring is concave downward to form a mounting groove, and the lower inner side wall is provided with a mounting piece protruding downward; The mounting member comprises a mounting block and two groups of guide posts symmetrically arranged on the back of the mounting block, with a gap formed between the two groups of guide posts; The side of the guide pillar facing the gap is arched outward to form a curved surface structure to clamp the elastic member, and the lower part of the curved surface structure slowly shrinks downward to embed the elastic member.

6. A switch socket with overload protection function as claimed in claim 3, characterized in that: It also includes a display component, which includes an LED light board and a light guide; the LED light board is electrically connected to the power receiving component and includes a plurality of LED lamp beads; the LED light board is embedded in the light guide and has an opening in the middle to avoid the socket component.

7. A switch socket with overload protection function as claimed in claim 6, characterized in that: The rear end of the socket N-pole socket sleeve is provided with a first connecting block protruding upwards, and the rear end of the socket L-pole socket sleeve is provided with a second connecting block protruding upwards; The inner circle of the LED lamp board is recessed outward to form two connection grooves, and the two connection grooves are respectively embedded in the first connection block and the second connection block; Alternatively, the display assembly further comprises two power-connecting springs, the lower parts of the two power-connecting springs are respectively sleeved on the first connecting block and the second connecting block, and the upper parts thereof abut against the back side of the LED light board.

8. A switch socket with overload protection function as claimed in claim 1, characterized in that: The socket assembly also includes a socket inner bracket, on which the power receiving part and the power receiving part are installed; The socket body includes a protection door module, which includes two flat protection doors, three flat protection doors, a protection door spring and a protection door bracket. The two flat protection doors and the three flat protection doors are movably installed on both sides of the top surface of the protection door bracket; the side surfaces of the two flat protection doors and the three flat protection doors are relatively provided with protruding positioning columns, and the two ends of the protection door spring are respectively embedded in the positioning columns of the two flat protection doors and the positioning columns of the three flat protection doors.

9. A switch socket with overload protection function as claimed in claim 8, characterized in that: The socket body comprises a panel and a rear seat, the panel is buckled with the protective door bracket, and the protective door bracket and the rear seat are covered up and down; the two ends of the back of the panel are provided with a first buckle position and a second buckle position protruding downwards, and the first buckle position and the second buckle position are both U-shaped card slots; The two ends of the upper part of the protection door bracket are provided with a first buckle and a second buckle protruding outward; the first buckle is buckled with the first buckle position, and the second buckle is buckled with the second buckle position.

10. A switch socket with overload protection function as claimed in claim 4, characterized in that: The socket assembly also includes a wiring terminal and a crimping screw, and the L-pole inlet plug, the socket N-pole socket sleeve, the socket E-pole socket sleeve and the output pole are fixed to the wiring terminal by the crimping screw.

Images