Protection switch and electrical equipment

Abstract

The invention provides a protection switch and electrical equipment, and relates to the technical field of electrical equipment. The protection switch has a first direction and comprises a base, a contact assembly, an execution part and a button assembly, and the contact assembly has an on state and an off state. An installation cavity is formed in the base, the button assembly, the execution piece and the contact assembly are sequentially arranged in the first direction, the execution piece, the contact assembly and at least part of the button assembly are located in the installation cavity, and the execution piece is connected with the contact assembly. The execution part is rotationally connected with the base, the button assembly is slidably connected with the base in the first direction, the part, facing the execution part, of the button assembly can rotate, and the button assembly is used for receiving pressing operation, so that the part, facing the execution part, of the button assembly drives the execution part to rotate, and the execution part is switched between a first position and a second position. Therefore, the power-on operation process after the protection switch is overloaded can be simplified, and the operation experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a protection switch and electrical equipment. Background Art

[0002] As a switching device, the protection switch can control the on and off of the circuit. Among them, the protection switch is provided with a static contact piece and a double metal moving contact piece inside. The double metal moving contact piece can move with the pressing action, so that the double metal moving contact piece and the static contact piece contact or separate to complete the control of the on and off of the circuit.

[0003] In addition, when the circuit is overloaded, the double metal moving contact piece can also be deformed, so that the double metal moving contact piece is separated from the static contact piece to disconnect the circuit.

[0004] The structural setting of the protection switch in the related art is unreasonable, which makes it difficult to re-energize the protection switch after the protection switch is overloaded. Summary of the invention

[0005] The present application provides a protection switch and an electrical device, which can simplify the operation process of powering on the protection switch after an overload, and improve the user's operating experience.

[0006] In a first aspect, the present application provides a protection switch having a first direction, the protection switch comprising a base, a contact assembly, an actuator and a button assembly, the contact assembly having an on state and an off state. The base has an installation cavity inside, the button assembly, the actuator and the contact assembly are arranged in sequence along the first direction, the actuator, the contact assembly and at least part of the button assembly are located in the installation cavity, and the actuator is connected to the contact assembly.

[0007] The actuator is rotatably connected to the base, the button assembly is slidably connected to the base along a first direction, and the part of the button assembly facing the actuator is rotatable. The button assembly is used to receive a pressing operation so that the part of the button assembly facing the actuator drives the actuator to rotate, so that the actuator switches between the first position and the second position.

[0008] When the actuator is in the first position, the contact assembly is in the on state, and when the actuator is in the second position, the contact assembly is in the off state. In the event of an overload of the protection switch, the contact assembly can switch from the on state to the off state and drive the actuator to rotate to the second position.

[0009] Thus, when the protection switch is working normally and the user presses the button assembly to turn off the protection switch, the button assembly can drive the actuator to rotate from the first position to the second position. When the protection switch is overloaded, the contact assembly can drive the actuator to rotate from the first position to the second position.

[0010] That is, whether the protection switch is closed by the user or by overload, the position of the actuator is the same, that is, in the second position. At this time, if the button assembly receives a pressing operation, the button assembly can drive the actuator to rotate to the first position and drive the contact assembly to connect again, which is consistent with the action of opening the protection switch after closing it normally.

[0011] Therefore, after an overload, when the user presses the button assembly, the actuator can drive the contact assembly to switch directly to the on state, which can simplify the operation of re-energizing the protection switch after an overload, and improve the user experience.

[0012] Optionally, the button assembly includes a mounting member and a swinging member, wherein the mounting member is slidably connected to the base along a first direction, and the swinging member is connected to a side of the mounting member facing the contact assembly and is rotatably connected to the mounting member. The mounting member is used to receive a pressing operation, and when the mounting member receives the pressing operation, the mounting member can drive the swinging member to slide along the first direction, and when the mounting member slides along the first direction, the swinging member can abut against the actuator and push the actuator to rotate, and the swinging member can rotate relative to the mounting member.

[0013] In this way, the mounting member can receive a pressing operation by the user, so that the mounting member can drive the swing member to slide along the first direction. The swing member is located on a side close to the contact assembly, so that the swing member can push the actuator to rotate, so that the actuator can rotate to switch between the first position and the second position.

[0014] Optionally, a reset component is further provided between the mounting member and the swinging member, and the reset component is used to drive the swinging member to reset when the pressing operation on the mounting member is canceled and the mounting member is separated from the actuator.

[0015] Through the above arrangement, after the mounting member rotates, the mounting member can be reset under the action of the reset assembly, so that when the button assembly is pressed again, the swing member can push the actuator, so that the actuator can rotate under the action of the swing member and drive the contact assembly to switch between the on state and the off state.

[0016] Optionally, the protection switch further includes a second direction intersecting with the first direction. A rotating shaft extending along the second direction is fixed on the actuator, the rotating shaft is rotatably connected to the base, the actuator has a first contact portion and a second contact portion located on both sides of the rotating shaft, and a portion of the actuator away from the first contact portion is connected to the contact assembly.

[0017] When the actuator is in the first position, the first contact portion is close to the button assembly and the second contact portion is far from the button assembly. When the actuator is in the second position, the second contact portion is close to the button assembly and the first contact portion is far from the button assembly.

[0018] In this way, no matter the protection switch is in the on state or in the off state, the actuator is tilted, so that the actuator can be easily rotated after being pushed by the swinging member to switch between the first position and the second position.

[0019] Optionally, the protection switch further comprises a lever, which is slidably connected to the base along a first direction, and in the first direction, the lever has a first end and a second end opposite to each other. The actuator of the rotating shaft which is away from the first contact portion is rotatably connected to the first end, and the second end is connected to the contact assembly, and the actuator and the contact assembly are driven by the lever.

[0020] With the above arrangement, when the actuator rotates, the actuator can drive the lever to slide, and drive the dual-metal moving contact piece to move in the first direction or the opposite direction of the first direction through the lever, so that the dual-metal moving contact piece is separated from or in contact with the stationary contact piece.

[0021] Optionally, the protection switch further comprises an elastic member, which is arranged on a side of the mounting member facing the actuator and abuts against both the mounting member and the base, and can be extended and retracted along a first direction. The elastic member is used to drive the mounting member to drive the swing member to slide in the opposite direction of the first direction after the pressing operation on the mounting member is cancelled, so as to separate the swing member from the actuator.

[0022] The elastic member is arranged between the mounting member base, and since the elastic member can be extended and retracted along the first direction, when the mounting member is pressed, the mounting member can also compress the elastic member. After the pressing operation is canceled, the elastic member can be extended under the action of its own elastic force, and drive the mounting member to slide in the opposite direction of the first direction, waiting for the next pressing operation.

[0023] Optionally, the mounting member is light-transmissive, and a receiving groove is provided on the side of the mounting member facing the actuator, and a light-emitting element is provided in the receiving groove. A first connecting piece and a second connecting piece are also provided on the base, and the number of elastic members is multiple, some of the elastic members are provided between the first connecting piece and the light-emitting element, and other parts of the elastic members are provided between the second connecting piece and the light-emitting element.

[0024] The elastic member is a conductive member, and one end of the elastic member facing the mounting member is electrically connected to the light emitting element. When the contact assembly is connected, the first connecting piece and the second connecting piece provide electrical energy to the light emitting element through the elastic member to make the light emitting element emit light.

[0025] Since the elastic member is a conductive member, when the first connecting piece and the second connecting piece are energized, the elastic member can transmit an electrical signal to the light-emitting element, so that the light-emitting element can emit light to indicate the state of the protection switch.

[0026] Optionally, part of the first connecting piece extends out of the installation cavity, and the part of the first connecting piece extending out of the installation cavity is used to connect an external accessory. And / or part of the second connecting piece extends out of the installation cavity, and the part of the second connecting piece extending out of the installation cavity is used to connect an external accessory.

[0027] Through the above arrangement, the electrical connection between the protection switch and the external accessories can be facilitated, and the user can connect the protection switch to the circuit conveniently, so that the protection switch can play a protective role.

[0028] Optionally, the contact assembly includes a stationary contact piece and a dual-metal moving contact piece, a fixing piece is provided in the mounting cavity, the stationary contact piece is fixed to the fixing piece, the dual-metal moving contact piece is located on the side of the stationary contact piece away from the button assembly, and is connected to the actuator.

[0029] The installation cavity has a cavity bottom opposite to the button assembly, and a first stopper is provided at the cavity bottom. When the actuator is in the first position, the double-metal moving contact piece abuts against the first stopper. And / or, a second stopper is provided on the side of the fixing member facing the cavity bottom, and the second stopper is located on the side of the double-metal moving contact piece facing the stationary contact piece. When the actuator is in the second position, the double-metal moving contact piece abuts against the second stopper.

[0030] Through the above arrangement, the first limiter and / or can serve as a fulcrum of the dual metal moving contact piece, which can make the position of the dual metal moving contact piece in the installation cavity more stable on the one hand, and make the dual metal moving contact piece respond faster on the other hand.

[0031] In a second aspect, the present application provides an electrical device, comprising any protection switch according to the first aspect.

[0032] The beneficial effects of the electrical equipment provided in the above-mentioned second aspect and each possible design of the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and each possible implementation method of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is one of the schematic diagrams of a protection switch according to an embodiment of the present application.

[0034] Figure 2 This is a schematic diagram of a protection switch in an embodiment of the present application without the upper cover.

[0035] Figure 3 This is an exploded view of a protection switch according to an embodiment of the present application with the base hidden.

[0036] Figure 4 This is one of the schematic diagrams of a mounting component according to an embodiment of the present application.

[0037] Figure 5 This is a schematic diagram of a contact assembly according to an embodiment of the present application.

[0038] Figure 6 This is a schematic diagram of a protection switch in an open state according to an embodiment of the present application.

[0039] Figure 7 for Figure 6 Schematic diagram of the swing part and the actuator.

[0040] Figure 8 This is a schematic diagram of a protection switch in a closed state according to an embodiment of the present application.

[0041] Fig. 9 for Figure 8 Schematic diagram of the swing part and the actuator.

[0042] Fig.10 This is a schematic diagram of the protection switch according to an embodiment of the present application during the process of switching from an open state to a closed state.

[0043] Fig.11 for Fig.10 Schematic diagram of the swing part and the actuator.

[0044] Fig.12 It is a schematic diagram of the swing member and the actuator in the transition stage according to an embodiment of the present application.

[0045] Fig.13 A schematic diagram of a swinging member according to an embodiment of the present application.

[0046] Fig.14 This is one of the schematic diagrams of a button assembly according to an embodiment of the present application.

[0047] Fig.15 This is a second schematic diagram of a button assembly according to an embodiment of the present application.

[0048] Fig.16 A schematic diagram of another button assembly according to an embodiment of the present application.

[0049] Fig.17 A schematic diagram of an execution component of an embodiment of the present application.

[0050] Fig.18 This is a schematic diagram of a top cover according to an embodiment of the present application.

[0051] Fig.19 This is a second schematic diagram of a mounting component according to an embodiment of the present application.

[0052] Fig. 20 This is a second schematic diagram of a protection switch according to an embodiment of the present application.

[0053] Fig.21 A schematic diagram of a base according to an embodiment of the present application.

[0054] Description of reference numerals:

[0055] 100: protection switch; 10: base; 11: installation cavity; 12: first connecting piece; 13: second connecting piece; 14: third connecting piece; 15: fixing piece; 151: installation slot; 111: cavity bottom; 112: first limiting piece; 113: second limiting piece; 114: limiting plate; 16: upper cover; 17: base; 161: positioning column; 162: guide groove; 20: contact assembly; 21: static contact piece; 211: static contact point; 22: double gold moving contact piece; 221: moving contact; 222: body; 223: moving spring piece; 30: actuator; 31: rotating shaft; 32: first contact part; 33: second contact 34: avoidance groove; 35: first contact arm; 36: second contact arm; 40: button assembly; 41: mounting member; 411: accommodating groove; 412: light-emitting element; 413: hook; 414: positioning foot; 415: light-guiding column; 416: rotating hole; 42: swing member; 421: rotating shaft; 422: first driving arm; 423: second driving arm; 43: reset assembly; 431: reset spring; 432: reset torsion spring; 424: mounting groove; 44: key cap; 45: clamping groove; 50: lever; 51: first end; 52: second end; 60: elastic member; X: first direction; Y: second direction. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0058] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0059] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0060] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the current limiting module of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 application.

[0061] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0062] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0063] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure can refer to a physical connection. For example, the physical connection can be a fixed connection, such as a fixed connection through a barrier, such as a fixed connection through a screw, bolt or other barrier; the physical connection can also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection can also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. The "connection" or "connection" of a circuit structure can refer to not only a physical connection, but also an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected, and it can also be the internal connection of two elements; the signal connection can refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0064] It should be understood that the references to "one embodiment" or "an embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0065] For example, the present application embodiment provides an electrical device, the electrical device includes: Figure 1 A protection switch 100 is shown.

[0066] The protection switch 100 can control the on and off of the circuit, and can also automatically disconnect the circuit in the event of an overload to ensure electrical safety.

[0067] In an electrical device equipped with the protection switch 100, the connection between the electrical device and the power supply can be controlled by the protection switch 100. Moreover, after the protection switch 100 disconnects the electrical device from the power supply due to overload, the user can also conveniently power on the protection switch 100 again to connect the electrical device to the power supply.

[0068] In the embodiment of the present application, the electrical device may be a socket, an air conditioner, a television, a water dispenser, a water heater, a refrigerator, etc. The embodiment of the present application does not specifically limit the specific type of the electrical device.

[0069] The protection switch 100 provided in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

[0070] Reference Figure 1 , Figure 2 and Figure 3 As shown, the present application provides a protection switch 100 having a first direction X. The protection switch 100 includes a base 10, a contact assembly 20, an actuator 30 and a button assembly 40, and the contact assembly 20 has an on state and an off state. The base 10 has an installation cavity 11 inside, and the button assembly 40, the actuator 30 and the contact assembly 20 are sequentially arranged along the first direction X. The actuator 30, the contact assembly 20 and at least part of the button assembly 40 are located in the installation cavity 11, and the actuator 30 is connected to the contact assembly 20.

[0071] The actuator 30 is rotatably connected to the base 10, the button assembly 40 is slidably connected to the base 10 along the first direction X, and the part of the button assembly 40 facing the actuator 30 is rotatable. The button assembly 40 is used to receive a pressing operation so that the part of the button assembly 40 facing the actuator 30 drives the actuator 30 to rotate, so that the actuator 30 switches between the first position and the second position.

[0072] When the actuator 30 is in the first position, the contact assembly 20 is in the on state, and when the actuator 30 is in the second position, the contact assembly 20 is in the off state. When the protection switch 100 is overloaded, the contact assembly 20 can be switched from the on state to the off state, and drive the actuator 30 to rotate to the second position.

[0073] The protection switch 100 includes a contact assembly 20. Since the contact assembly 20 has an on state and an off state, the protection switch 100 can control the on and off of the circuit through the contact assembly 20, so that the protection switch 100 can be switched between on and off.

[0074] When the protection switch 100 is turned on, the contact assembly 20 can be in an on state, and the circuit where the protection switch 100 is located can be connected. When the protection switch 100 is turned off, the contact assembly 20 can be in an off state, and the circuit where the protection switch 100 is located can be disconnected.

[0075] The protection switch 100 further includes a base 10, an actuator 30 and a button assembly 40. The base 10 can provide an installation position for the actuator 30, the button assembly 40 and the contact assembly 20. The button assembly 40, the actuator 30 and the contact assembly 20 are sequentially installed on the base 10 along the first direction X, so that the actuator 30, the contact assembly 20 and at least part of the button assembly 40 are located in the installation cavity 11.

[0076] Since at least a portion of the button assembly 40 is disposed in the mounting cavity 11 , a portion of the button assembly 40 may extend out of the mounting cavity 11 , so that it is convenient for a user to press the button assembly 40 .

[0077] Alternatively, the button assembly 40 may also be located in the installation cavity 11. In this case, in order to allow the user to press the button assembly 40, an operation hole opposite to the button assembly 40 may be provided on the base 10. When the button assembly 40 needs to be pressed, the user may extend a finger or other tool through the operation hole into the installation cavity 11 to apply a pressing operation to the button assembly 40.

[0078] The button assembly 40 is slidably connected to the base 10 along the first direction X. When the user presses the button assembly 40 , the button assembly 40 can slide along the first direction X, so that the button assembly 40 can approach the actuator 30 and push the actuator 30 .

[0079] Since the actuator 30 is rotatably connected to the base 10 , when the button assembly 40 pushes the actuator 30 , the actuator 30 can rotate to switch between the first position and the second position.

[0080] The actuator 30 is connected to the contact assembly 20 , so when the actuator 30 rotates, the actuator 30 also drives the contact assembly 20 to switch between the disconnected state and the connected state.

[0081] Since the portion of the button assembly 40 facing the actuator 30 is rotatable, when the button assembly 40 slides along the first direction X and pushes the actuator 30 so that the actuator 30 rotates, the portion of the button assembly 40 facing the actuator 30 can also rotate. In this way, the button assembly 40 can avoid the rotation of the actuator 30, and the possibility of the button assembly 40 interfering with the rotation of the actuator 30 can be reduced.

[0082] Based on the above analysis, the user can press the button assembly 40 to make the button assembly 40 push the actuator 30 to rotate, thereby switching the contact assembly 20 between the on state and the off state, and realizing the opening and closing of the protection switch 100 under normal operation.

[0083] In addition, when the protection switch 100 is overloaded, the contact assembly 20 can directly switch from the on state to the off state. At this time, the contact assembly 20 can also drive the actuator 30 to rotate during the switching process, so that the actuator 30 can rotate from the first position to the second position.

[0084] Thus, when the protection switch 100 works normally and the user presses the button assembly 40 to turn off the protection switch 100, the button assembly 40 can drive the actuator 30 to rotate from the first position to the second position. When the protection switch 100 is overloaded, the contact assembly 20 can drive the actuator 30 to rotate from the first position to the second position.

[0085] That is, whether the protection switch 100 is closed by a user's pressing or by an overload, the position of the actuator 30 is the same, that is, in the second position. At this time, if the button assembly 40 receives a pressing operation, the button assembly 40 can drive the actuator 30 to rotate to the first position and drive the contact assembly 20 to be turned on again, which is consistent with the action of opening the protection switch 100 after being normally closed.

[0086] Therefore, in the embodiment of the present application, the button assembly 40 can be used as a switch of the protection switch 100, and receive a user's pressing operation to turn on or off the protection switch 100. In addition, the button assembly 40 also has a reset function after the protection switch 100 is overloaded. Therefore, whether the protection switch 100 is normally closed or the protection switch 100 is closed due to overload, the protection switch 100 can be turned on by the button assembly 40.

[0087] Furthermore, after an overload, when the user presses the button assembly 40, the actuator 30 can drive the contact assembly 20 to switch directly to the on state, which can simplify the operation of re-energizing the protection switch 100 after an overload, thereby improving the user experience.

[0088] In the related art, in a protection switch in which the switch and reset are integrated on the same button, when the protection switch is working normally, the protection switch can be turned on or off by pressing the button. However, when the protection switch needs to be reset after an overload, after pressing the button, the protection switch will still be in the off state, and it needs to be pressed again to power on the protection switch.

[0089] Therefore, in the related art, after the protection switch is overloaded, it is necessary to press buttons multiple times to power on the protection switch, which is not only troublesome to operate, but also reduces the user experience.

[0090] In the embodiment of the present application, after an overload, the user only needs to press the button assembly 40 once to switch the contact assembly 20 directly to the on state, thereby improving the user experience.

[0091] In some embodiments, Figure 2 and Figure 3As shown, the button assembly 40 may include a mounting member 41 and a swinging member 42. The mounting member 41 is slidably connected to the base 10 along the first direction X, and the swinging member 42 is connected to the side of the mounting member 41 facing the contact assembly 20 and is rotatably connected to the mounting member 41. The mounting member 41 is used to receive a pressing operation. When the mounting member 41 receives a pressing operation, the mounting member 41 can drive the swinging member 42 to slide along the first direction X. During the sliding process of the mounting member 41 along the first direction X, the swinging member 42 can abut against the actuator 30 and push the actuator 30 to rotate, and the swinging member 42 can rotate relative to the mounting member 41.

[0092] The button assembly 40 includes a mounting member 41 and a swing member 42 . The mounting member 41 is located at a side away from the contact assembly 20 . Therefore, the mounting member 41 can receive a pressing operation from a user so that the mounting member 41 can drive the swing member 42 to slide along the first direction X.

[0093] The swing member 42 is located at a side close to the contact assembly 20 , so that the swing member 42 pushes the actuator 30 to rotate, so that the actuator 30 can rotate to switch between the first position and the second position.

[0094] In the present application, the rotation connection between the mounting member 41 and the swing member 42 can be realized in different ways. For example, the mounting member 41 can be provided with a rotation shaft 421, and the mounting member 41 can be provided with a rotation hole 416, and the rotation shaft 421 can be embedded in the rotation hole 416, such as Figure 3 As shown, when the mounting member 41 pushes against the actuator 30, the mounting member 41 can also rotate to avoid the action of the actuator 30.

[0095] Alternatively, the mounting member 41 and the swing member 42 may also be connected by a plastic member with a smaller thickness. In this way, when the mounting member 41 pushes against the swing member 42, the plastic member with a smaller thickness may be deformed, so that the swing member 42 can rotate relative to the mounting member 41 and can also avoid the actuator 30.

[0096] It should be noted that the swing member 42 is located in the installation cavity 11 and can apply force to the actuator 30. The installation member 41 can be located in the installation cavity 11, or partially extend from the installation cavity 11, so that the user can press the installation member 41.

[0097] It should also be noted that if Figure 2 and Figure 3 As shown, a key cap 44 may be connected to the side of the mounting member 41 facing away from the actuator 30. When the user performs a pressing operation, the key cap 44 may be pressed, and the mounting member 41 may be pressed through the key cap 44.

[0098] At least a portion of the key cap 44 may extend out of the mounting cavity 11 so as to receive a pressing operation by a user.

[0099] A clamping member may be provided on one side of the key cap 44 facing the mounting member 41, and a clamping groove 45 may be provided on the mounting member 41. The clamping member may be clamped in the clamping groove 45 to achieve the installation of the key cap 44. Figure 2 and Figure 4 shown.

[0100] The clamping slot 45 may have a first slot wall and a second slot wall opposite to each other, and the first slot wall and the second slot wall are clamped with the clamping member. In a direction perpendicular to the first slot wall and the second slot wall, the size of the clamping slot 45 may be larger to adapt to different keycaps 44 .

[0101] In some embodiments, Figure 2 , Figure 3 and Figure 6 As shown, the contact assembly 20 may include a stationary contact piece 21 and a dual-metal moving contact piece 22. A fixing piece 15 is provided in the mounting cavity 11. The stationary contact piece 21 is fixed to the fixing piece 15. The dual-metal moving contact piece 22 is located on the side of the stationary contact piece 21 away from the button assembly 40 and is connected to the actuator 30.

[0102] Thus, when the actuator 30 rotates, the actuator 30 can drive the double metal moving contact piece 22 to move, so that the double metal moving contact piece 22 can contact the static contact piece 21, so that the contact assembly 20 is in the on state. Alternatively, the actuator 30 can also drive the double metal moving contact piece 22 to move, so that the double metal moving contact piece 22 is separated from the static contact piece 21, so that the contact assembly 20 is in the off state.

[0103] It should be noted that if Figure 5 As shown, a static contact 211 is provided on the static contact piece 21, and a dynamic contact 221 can be provided on the bimetallic dynamic contact piece 22. The static contact 211 is opposite to the dynamic contact 221, and the static contact 211 and the dynamic contact 221 can cooperate to connect or disconnect the contact assembly 20.

[0104] At this time, the end of the bimetal moving contact piece 22 not provided with the moving contact 221 can be connected to the actuator 30 to reduce the possibility of the actuator 30 damaging the moving contact 221 or affecting the contact between the moving contact 221 and the static contact 211.

[0105] Thus, when the actuator 30 drives the bimetal moving contact piece 22 to move along the first direction X, the side of the bimetal moving contact piece 22 provided with the moving contact 221 can move in the opposite direction of the first direction X, so that the moving contact 221 can be separated from the static contact 211.

[0106] When the actuator 30 drives the bimetallic moving contact piece 22 to move in the opposite direction along the first direction X, the side of the bimetallic moving contact piece 22 provided with the moving contact 221 can move along the first direction X, so that the moving contact 221 can contact the static contact 211 .

[0107] In some embodiments, Figure 1 , Figure 2 , Figure 6 and Figure 7 As shown, the protection switch 100 may further include a second direction Y intersecting with the first direction X. A rotating shaft 31 extending along the second direction Y is fixed on the actuator 30, and the rotating shaft 31 is rotatably connected to the base 10. The actuator 30 has a first contact portion 32 and a second contact portion 33 located on both sides of the rotating shaft 31, and a portion of the actuator 30 that is away from the first contact portion 32 is connected to the contact assembly 20.

[0108] The actuator 30 can be rotatably connected to the base 10 via the rotating shaft 31. Since the rotating shaft 31 extends along the second direction Y, the actuator 30 can rotate around the rotating shaft 31, and the first contact portion 32 and the second contact portion 33 on both sides of the rotating shaft 31 can be displaced in the first direction X.

[0109] Therefore, when the first contact portion 32 or the second contact portion 33 is subjected to force, the actuator 30 can rotate around the rotating shaft 31 .

[0110] When the actuator 30 is located at the first position, the first contact portion 32 is close to the mounting member 41, and the second contact portion 33 is away from the mounting member 41. Figure 6 and Figure 7 shown.

[0111] When the actuator 30 is located at the second position, the second contact portion 33 is close to the mounting member 41, and the first contact portion 32 is away from the mounting member 41. Figure 8 and Fig. 9 shown.

[0112] Therefore, no matter the protection switch 100 is in the open state or in the closed state, the actuator 30 is in the tilted state.

[0113] Here, the protection switch 100 is used Figure 2 Taking the position shown in the figure as an example, in the figure, the first contact portion 32 is located on the left side of the rotating shaft 31, and the second contact portion 33 is located on the right side of the rotating shaft 31. When the actuator 30 is in the first position, the first contact portion 32 is tilted upward and the second contact portion 33 is tilted downward. When the actuator 30 is in the second position, the second contact portion 33 is tilted upward and the first contact portion 32 is tilted downward.

[0114] Thus, when the mounting member 41 is pressed to switch the actuator 30 from the first position to the second position, the swing member 42 can slide along the first direction X with the mounting member 41 and first abut against the first contact portion 32. Thus, the first contact portion 32 can be subjected to force to cause the actuator 30 to rotate counterclockwise.

[0115] During the counterclockwise rotation of the actuator 30 , the first contact portion 32 can move downward, and the second contact portion 33 can move upward, driving the bimetallic moving contact piece 22 to move, so that the moving contact 221 is separated from the static contact 211 , thereby disconnecting the contact assembly 20 .

[0116] When the mounting member 41 is pressed to switch the actuator 30 from the second position to the first position, the swing member 42 can slide along the first direction X with the mounting member 41 and first abut against the second contact portion 33. Thus, the second contact portion 33 can be subjected to force to cause the actuator 30 to rotate clockwise.

[0117] During the clockwise rotation of the actuator 30 , the second contact portion 33 can move downward, and the first contact portion 32 can move upward, driving the bimetallic moving contact piece 22 to move, so that the moving contact 221 contacts the static contact 211 , thereby connecting the contact assembly 20 .

[0118] It should be noted that the first direction X intersects with the second direction Y, and there may be an angle between the first direction X and the second direction Y. The angle may be 90°, 80°, 79°, 96° or 101°, etc. The specific value of the angle between the first direction X and the second direction Y is not specifically limited in the embodiment of the present application.

[0119] In some embodiments, Figure 3 As shown, a reset component 43 may be further provided between the mounting member 41 and the swinging member 42 . The reset component 43 is used to drive the swinging member 42 to reset when the pressing operation on the mounting member 41 is canceled and the mounting member 41 is separated from the actuator 30 .

[0120] Through the above arrangement, after the mounting member 41 rotates to avoid the rotation of the actuator 30, the mounting member 41 can be reset under the action of the reset assembly 43, so that when the button assembly 40 is pressed again, the swing member 42 can push the actuator 30, so that the actuator 30 can rotate under the action of the swing member 42 and drive the contact assembly 20 to switch between the on state and the off state.

[0121] Combination Figure 2 and Figure 3 The swing member 42 has a mounting surface facing the mounting member 41, and the mounting member 41 has a mating surface facing the swing member 42. In the initial state (no pressing operation is performed on the mounting member 41), the mounting surface and the mating surface can be parallel, and the actuator 30 is in an inclined state.

[0122] In this way, when the mounting member 41 is pressed so that the mounting member 41 drives the swinging member 42 to slide, the swinging member 42 can first abut against the upwardly inclined side of the actuator 30 and push the upwardly inclined side of the actuator 30, so that the actuator 30 rotates and the swinging member 42 also rotates.

[0123] The setting of the reset component 43 in the present application can reduce the possibility that the swing member 42 is still in a tilted state after a certain pressing operation is completed, causing the button component 40 to fail.

[0124] Specifically, if the swing member 42 is still in a tilted state before the next pressing operation, when the mounting member 41 is pressed, the swing member 42 may slide along the first direction X in a tilted state. During this process, the swing member 42 may be misaligned with the actuator 30, or the actuator 30 may not rotate into place.

[0125] For ease of explanation, the process of closing the protection switch 100 is divided into an initial stage, a transition stage, a completion stage, and a reset stage according to the relative positions of the swing member 42 and the actuator 30. During this process, the user can press the mounting member 41 to switch the actuator 30 from the first position to the second position.

[0126] The initial stage is the stage before the swing member 42 contacts the actuator 30. At this time, the actuator 30 remains in the first position. Figure 6 Figure 7 The completion stage is the stage where the actuator 30 rotates to the second position, as shown in FIG. Fig.10 and Fig.11 shown.

[0127] The transition phase is the process between the initial phase and the completion phase. At this time, the swing member 42 pushes the actuator 30 to make the actuator 30 rotate. The relative position of the swing member 42 and the actuator 30 in the transition phase can be referred to Fig.12 .

[0128] The reset stage is when the mounting member 41 drives the swing member 42 to slide in the opposite direction of the first direction X, so that the swing member 42 is reset and waits for the next pressing. Figure 8 and Fig. 9 At this time, the actuator 30 is kept in the second position, so that the dual-metal moving contact piece 22 and the stationary contact piece 21 are kept separated.

[0129] The reset assembly 43 operates in the reset stage to drive the swing member 42 to return to the initial state, so that the mounting surface and the mating surface can remain level, ready for the next pressing operation.

[0130] The process of opening the protection switch 100 is opposite to the actions in the above four stages.

[0131] When the protection switch 100 is overloaded, the double metal moving contact piece 22 is deformed, which can push the actuator 30 to rotate, so that the swing member 42 and the actuator 30 directly change from the initial stage to the reset stage. When the contact assembly 20 needs to be connected again, the mounting member 41 can be pressed, so that the swing member 42 and the actuator 30 can repeat the process of opening the protection switch 100.

[0132] In the embodiment of the present application, the reset component 43 may have different configurations, which are specifically described by taking the following three as examples.

[0133] Method 1: Figure 2 , Figure 6 and Fig.13 As shown, the reset component 43 may be a reset spring 431. A mounting groove 424 is provided on one side of the swing member 42 facing the mounting member 41, and the reset spring 431 is disposed in the mounting groove 424, and both ends of the reset spring 431 abut against the bottom of the mounting groove 424 and the mounting member 41, respectively. The reset spring 431 may be retractable along the first direction X.

[0134] Thus, during the transition stage and the completion stage, the reset spring 431 can be squeezed during the rotation of the swing member 42. During the reset stage, the reset spring 431 can be extended under the action of its own elastic force and drive the swing member 42 to rotate, so that the swing member 42 can be restored to the initial state.

[0135] Specifically, the protection switch 100 is Figure 2 The swinging position shown in the figure is used as an example for explanation, and the protection switch 100 is in the open state. If the user presses the mounting member 41, the mounting member 41 can drive the actuator 30 to rotate counterclockwise through the swing member 42, and during this process, the swing member 42 also rotates counterclockwise.

[0136] During the swinging of the swinging member 42, the right side of the swinging member 42 presses more on the return spring 431, while the left side of the swinging member 42 presses less on the return spring 431. After the pressing is completed, the right side of the return spring 431 stretches more, while the left side of the return spring 431 stretches less, so that the swinging member 42 can be restored to the initial state.

[0137] When the protection switch 100 is switched from the disconnected state to the open state, the states of the swing member 42 and the return spring 431 are not described in detail here, and reference may be made to the above description.

[0138] In this embodiment, the rotational connection between the swing member 42 and the mounting member 41 can also be achieved in different ways.

[0139] For example, Figure 3 As shown, the rotating shaft 421 on the mounting member 41 may be a cylindrical shaft, and the rotating hole 416 on the swinging member 42 may also be a circular hole.

[0140] Or, if Fig.14 and Fig.15 As shown, the rotating shaft 421 can be a "water drop" structure composed of a triangular prism portion and a cylindrical portion. The cross-sectional profile of the rotating shaft 421 on its axis is a major arc plus a sharp angle. The rotating hole 416 includes a waist-shaped hole portion on the side away from the actuator 30 and a sharp angle hole portion on the side close to the actuator 30, and the waist-shaped portion is connected to the sharp angle portion.

[0141] The triangular prism portion on the rotating shaft 421 is adapted to the pointed hole portion. In the first direction X, the dimensions of the two opposite ends of the cylindrical portion are smaller than the dimensions of the two opposite sides of the waist-shaped hole portion.

[0142] When the mounting member 41 is not pressed, the triangular prism portion on the lower side of the rotating shaft 421 is clamped in the pointed hole portion of the rotating hole 416, and the cylindrical portion on the upper side of the rotating shaft 421 is embedded in the waist-shaped hole portion of the rotating hole 416, and part of the waist-shaped hole portion is not filled.

[0143] When pressing the mounting member 41, the mounting member 41 can first squeeze the return spring 431, thereby making the rotating shaft 421 slide in the rotating hole 416 in the opposite direction of the first direction X, so that the triangular prism portion is also located in the waist-shaped hole portion. With continued pressing, the swing member 42 can rotate, and at this time, both the cylindrical portion and the triangular prism portion can rotate in the waist-shaped hole portion, such as Fig.15 shown.

[0144] After the pressing is completed, the triangular prism portion can slide along the hole wall of the sharp-angle hole portion, so that the triangular prism portion can be re-engaged in the sharp-angle hole portion of the rotating hole 416. In this way, the swing member 42 can be easily restored to the initial state.

[0145] Method 2: Figure 3 and Fig.16 As shown, the reset component 43 may be a reset torsion spring 432. The reset torsion spring 432 may be sleeved on the rotating shaft 421, and two torsion arms of the reset torsion spring 432 abut against the mounting member 41 and the swing member 42 respectively.

[0146] When the mounting member 41 is pressed and the swing member 42 rotates, the two torsion arms of the return torsion spring 432 can approach each other to store elastic potential energy. After the pressing is completed, the return torsion spring 432 can release the elastic potential energy and drive the swing member 42 to return to the initial state through the torsion arms.

[0147] In method 2, refer to Fig.16 Two rotating shafts 421 may be provided, and a reset torsion spring 432 may be provided on each of the two rotating shafts 421 . The two reset torsion springs 432 may cooperate to reset the swinging member 42 .

[0148] Continue to refer Fig.16 When the swing member 42 rotates clockwise, the two torsion arms of the return torsion spring 432 on the upper side of the figure can approach each other. When the swing member 42 rotates counterclockwise, the two torsion arms of the return torsion spring 432 on the lower side of the figure can approach each other.

[0149] Of course, only one return torsion spring 432 may be provided. In this case, an abutment structure may be provided on the mounting member 41, so that the torsion arm of the return torsion spring 432 abutting against the mounting member 41 may abut against the abutment structure. In this way, whether the swing member 42 rotates clockwise or counterclockwise, the return torsion spring 432 can store elastic potential energy to drive the swing member 42 to reset.

[0150] In the above-mentioned method 1 and method 2, the position between the mounting member 41 and the swing member 42 is adjusted by the reset component 43. In this way, the protection switch 100 can be horizontally installed on the electrical device, or can also be tilted on the electrical device, and the reset component 43 can be used to reset the swing member 42, so that the protection switch 100 provided by the present application is suitable for different electrical devices.

[0151] Of course, for electrical equipment with the protection switch 100 arranged horizontally, the reset assembly 43 may not be provided. At this time, the shape of the swing member 42 may be arranged so that the swing member 42 can be reset under the action of its own gravity after being tilted.

[0152] In some embodiments, Figure 3 and Figure 7 As shown, the first driving arm 422 and the second driving arm 423 may be connected to the side of the swing member 42 facing the actuator 30. In this way, the first driving arm 422 and the second driving arm 423 may protrude toward the actuator 30, which may facilitate the swing member 42 to abut against the actuator 30 and push the actuator 30 to rotate.

[0153] In addition, the first driving arm 422 can be located on the same side as the first contact portion 32, and the second driving arm 423 can be located on the same side as the second contact portion 33. In this way, the first driving arm 422 can push the first contact portion 32 to rotate, and the second driving arm 423 can push the second contact portion 33 to rotate, which can facilitate the swing member 42 to apply force to one side of the actuator 30, reducing the possibility that the swing member 42 cannot push the actuator 30 to rotate.

[0154] like Figure 3 , Figure 7 and Fig.17 As shown, the actuator 30 may also be provided with a first contact arm 35 and a second contact arm 36 protruding toward the actuator 30 , so that the actuator 30 receives the force applied by the swinging member 42 to rotate.

[0155] The first contact arm 35 and the first driving arm 422 are located at the same side, and are used to receive the force from the first driving arm 422. The second contact arm 36 and the second driving arm 423 are located at the same side, and are used to receive the force from the second driving arm 423.

[0156] It should be noted that if Figure 3 and Fig.17 As shown, a side of the actuator 30 facing the swing member 42 may also be provided with an avoidance groove 34. When the swing member 42 drives the actuator 30 to rotate, the swing member 42 itself also rotates.

[0157] During the rotation of the swing member 42, the first driving arm 422 or the second driving arm 423 can be embedded in the avoidance groove 34 and slide in the avoidance groove 34. Fig.11 and Fig.12 In this way, the possibility of interference between the swing member 42 and the actuator 30 can be further reduced.

[0158] It should also be noted that when the protection switch 100 is in the open state and the button assembly 40 is not pressed, the first driving arm 422 can abut against the first contact arm 35. In this way, after the button assembly 40 is pressed, the first driving arm 422 can push the first contact arm 35, so that the actuator 30 responds more quickly.

[0159] Of course, the first driving arm 422 and the first contact arm 35 can also be separated. In this case, after the button assembly 40 is pressed, the mounting member 41 slides a certain distance, and then the first driving arm 422 can push the first contact arm 35 .

[0160] Similarly, when the protection switch 100 is in the closed state and the button assembly 40 is not pressed, the second driving arm 423 and the second contact arm 36 may abut, or the second driving arm 423 and the second contact arm 36 may separate. The embodiment of the present application is not described in detail here.

[0161] In some embodiments, Figure 2 and Figure 3 As shown, the protection switch 100 may further include a lever 50, which is slidably connected to the base 10 along the first direction X. In the first direction X, the lever 50 has a first end 51 and a second end 52 opposite to each other. The part of the actuator 30 where the shaft 31 is away from the first contact portion 32 is rotatably connected to the first end 51, and the second end 52 is connected to the contact assembly 20. The actuator 30 and the contact assembly 20 are driven by the lever 50.

[0162] With the above arrangement, when the actuator 30 rotates, the actuator 30 can drive the lever 50 to slide, and drive the dual-metal moving contact piece 22 to move along the first direction X or the reverse direction of the first direction X through the lever 50, so that the dual-metal moving contact piece 22 is separated from or in contact with the stationary contact piece 21.

[0163] In the embodiment of the present application, the lever 50 is slidably connected to the base 10 along the first direction X, and the rotating shaft 31 is rotatably connected to the first end 51 of the lever 50 .

[0164] In this way, the rotation of the second contact portion 33 can be converted into the sliding of the lever 50 , and the lever 50 can drive the dual-metal movable contact piece 22 to move during the linear motion to complete the connection or disconnection of the contact assembly 20 .

[0165] Thus, the possibility of the actuator 30 directly driving the double metal moving contact piece 22 to move can be reduced, because the second contact portion 33 has a larger movement range, which may easily lead to a larger movement range of the double metal moving contact piece 22 and thus easily collide with other parts and be damaged.

[0166] In some embodiments, Figure 2 and Figure 3 As shown, the protection switch 100 may further include an elastic member 60, which is disposed on a side of the mounting member 41 facing the actuator 30 and abuts against the mounting member 41 and the base 10, and the elastic member 60 can be extended and retracted along the first direction X. The elastic member 60 is used to drive the mounting member 41 to drive the swing member 42 to slide in the opposite direction of the first direction X after the pressing operation on the mounting member 41 is canceled, so as to separate the swing member 42 from the actuator 30.

[0167] The elastic member 60 is disposed between the mounting member 41 and the base 10. Since the elastic member 60 can be extended and retracted along the first direction X, when the mounting member 41 is pressed, the mounting member 41 can also compress the elastic member 60. After the pressing operation is canceled, the elastic member 60 can be extended under the action of its own elastic force and drive the mounting member 41 to slide in the opposite direction of the first direction X, waiting for the next pressing operation.

[0168] It should be noted that the elastic member 60 and the reset assembly 43 can be provided in the protection switch 100 at the same time. In this way, after the pressing operation is canceled, the elastic member 60 can drive the mounting member 41 to slide in the opposite direction of the first direction X, so that the swing member 42 is separated from the actuator 30, and the reset assembly 43 can restore the swing member 42 to a horizontal state. In this way, when the next pressing is performed, the swing member 42 can contact the actuator 30 again and drive the actuator 30 to rotate.

[0169] It should also be noted that the elastic member 60 may be a spring, a spring sheet or other components made of elastic material. The specific type of the elastic member 60 is not specifically limited in the embodiment of the present application.

[0170] In order to reduce the tilting of the elastic member 60 during the extension and contraction process, a guide groove 162 may be formed inside the base 10, and the elastic member 60 may be disposed in the guide groove 162. Figure 1and Fig.18 shown.

[0171] In addition, when the button assembly 40 is not pressed, the elastic member 60 may be in a pre-pressed state.

[0172] like Figure 4 , Fig.18 , Fig.19 As shown, a limit plate 114 may be provided on the cavity wall of the installation cavity 11 , and a hook 413 may be provided on the surface of the installation member 41 facing the cavity wall. The hook 413 is located on the side of the limit plate 114 facing the contact assembly 20 and abuts against the limit plate 114 .

[0173] In this way, the possibility that the elastic member 60 in the pre-stressed state pushes the mounting member 41 to slide in the opposite direction along the first direction X and separate from the base 10 under the action of its own elastic force can be reduced.

[0174] In addition, in order to reduce the possibility of the mounting member 41 being deflected during the pressing process, the mounting member 41 may be provided with positioning feet 414 around it, such as Figure 4 and Fig.19 The positioning foot 414 can abut against the cavity wall of the installation cavity 11 .

[0175] Generally speaking, the base 10 is a rectangular parallelepiped structure, and correspondingly, the mounting cavity 11 is a rectangular parallelepiped structure chamber with four corners. In order to reduce the deflection of the mounting member 41, four positioning feet 414 can also be provided, and the four positioning feet 414 are in contact with the four corners.

[0176] In some embodiments, Figure 2 , Figure 3 and Fig.19 As shown, the mounting member 41 is light-transmissive, and a receiving groove 411 is provided on the side of the mounting member 41 facing the actuator 30, and a light-emitting element 412 is provided in the receiving groove 411. The base 10 is also provided with a first connecting piece 12 and a second connecting piece 13, and the number of the elastic members 60 is multiple, and some of the elastic members 60 can be provided between the first connecting piece 12 and the mounting member 41, and another part of the elastic members 60 can be provided between the second connecting piece 13 and the mounting member 41.

[0177] The elastic member 60 is a conductive member. One end of the elastic member 60 facing the mounting member 41 is electrically connected to the light-emitting element 412. When the contact assembly 20 is connected, the first connecting piece 12 and the second connecting piece 13 provide electrical energy to the light-emitting element 412 through the elastic member 60 to make the light-emitting element 412 emit light.

[0178] Since there are multiple elastic members 60 and multiple mounting members 41 are all arranged between the base 10 and the mounting member 41, after the pressing operation is cancelled, the multiple elastic members 60 can all extend under the action of their own elastic force, and jointly drive the mounting member 41 to slide in the opposite direction along the first direction X, thereby improving the reliability of the driving of the elastic member 60.

[0179] In the present application, when the protection switch 100 is connected to a circuit and the contact assembly 20 is in an on state, the first connection piece 12 and the second connection piece 13 may also be energized.

[0180] In the embodiment of the present application, part of the elastic member 60 is located between the first connecting piece 12 and the mounting member 41, and another part of the elastic member 60 is located between the second connecting piece 13 and the mounting member 41. In this way, the elastic member 60 can push the mounting member 41 to slide in the opposite direction of the first direction X through the first connecting piece 12 and the second connecting piece 13.

[0181] A light emitting element 412 is also provided on the side of the mounting member 41 facing the actuator 30, and the side of the elastic member 60 facing the mounting member 41 can abut against the light emitting element 412. Since the elastic member 60 is a conductive member, when the first connecting piece 12 and the second connecting piece 13 are energized, the elastic member 60 can transmit an electrical signal to the light emitting element 412, so that the light emitting element 412 can emit light to indicate the state of the protection switch 100.

[0182] It should be noted that the light emitting element 412 may be a lamp board, a circuit board provided with lamp beads, etc. The specific type of the light emitting element 412 is not specifically limited in the embodiment of the present application.

[0183] It should also be noted that the mounting member 41 may be only partially light-transmissive. Figure 3 and Figure 4 As shown, a light-transmitting light guide column 415 can be provided on the mounting member 41, and the light guide column 415 is opposite to the position on the light-emitting element 412 that can emit light, and other positions of the mounting member 41 can be non-light-transmitting. Alternatively, the mounting member 41 can also be light-transmitting as a whole. The specific arrangement of the mounting member 41 is not specifically limited in the embodiment of the present application.

[0184] In the case where a key cap 44 is disposed on the mounting member 41 , the key cap 44 can also be light-transmissive, so that the light emitted by the light-emitting element 412 can be transmitted through the key cap 44 for observation by the user.

[0185] In addition, when the protection switch 100 is turned off or overloaded, the contact assembly 20 may be in a disconnected state. At this time, the first connecting piece 12 and the second connecting piece 13 may be de-energized, so that the light emitting element 412 is also de-energized and extinguished.

[0186] In this way, no matter the user turns off the protection switch 100 by pressing, or the protection switch 100 is turned off due to overload, the light emitting element 412 does not emit light. When the protection switch 100 is turned on, the light emitting element 412 can be powered on and emit light.

[0187] It can be seen that the state of the light emitting element 412 is consistent with that of the protection switch 100 , which can facilitate the user to determine the state of the protection switch 100 according to whether the light emitting element 412 is emitting light.

[0188] In the embodiment of the present application, part of the first connecting piece 12 can extend out of the mounting cavity 11, and part of the second connecting piece 13 can extend out of the mounting cavity 11. In this way, part of the first connecting piece 12 extending out of the mounting cavity 11 can be connected to an external accessory, and part of the second connecting piece 13 extending out of the mounting cavity 11 can be connected to an external accessory.

[0189] Through the above arrangement, the electrical connection between the protection switch 100 and the external accessories can be facilitated, and the user can connect the protection switch 100 to the circuit conveniently, so that the protection switch 100 can play a protective role.

[0190] The first connecting piece 12 may be an L-pole connecting piece, and the second connecting piece 13 may be an N-pole connecting piece.

[0191] It should be noted that a third connecting piece 14, namely an E-pole connecting piece, may be further provided in the base 10. And a portion of the E-pole connecting piece may extend out of the mounting cavity 11 for connecting external accessories.

[0192] It should also be noted that, generally speaking, a converter may be provided in the circuit, and the converter is used in conjunction with the protection switch 100. The L-pole connecting piece and / or the N-pole connecting piece may also be provided on the converter.

[0193] Therefore, the protection switch 100 may be provided with only an L-pole connection piece, which may extend outward from the base 10 for subsequent connection, and in this case, the N-pole connection piece may be provided on the converter. Alternatively, the protection switch 100 may be provided with only an N-pole connection piece, which may extend outward from the base 10 for subsequent connection, and in this case, the L-pole connection piece may be provided on the converter.

[0194] That is, the number of L-pole connecting pieces and N-pole connecting pieces in the protection switch 100 may be increased or decreased according to the situation.

[0195] In addition, both ends of the first connecting piece 12, the second connecting piece 13, and the third connecting piece 14 for wiring can extend out of the mounting cavity 11. In this way, one end of the connecting piece can be used as the incoming line end of the protection switch 100, and the other end of the connecting piece can be used as the outgoing line end of the protection switch 100. Figure 1 and Fig. 20As shown, schematic diagrams of the protection switch at different viewing angles are shown.

[0196] Alternatively, at least one end of the stationary contact piece 21 may extend from the installation cavity 11, and the stationary contact piece 21 may also be connected. In this case, the first connecting piece 12 and the second connecting piece 13 may be reduced according to the situation.

[0197] In addition, if Figure 1 , Figure 3 and Fig.21 As shown, a mounting slot 151 may be provided on the base 10 , and the first connecting piece 12 , the second connecting piece 13 and the third connecting piece 14 may be snapped into the mounting slot 151 to position the first connecting piece 12 , the second connecting piece 13 and the third connecting piece 14 .

[0198] In some embodiments, Figure 2 and Figure 6 As shown, the installation cavity 11 has a cavity bottom 111 opposite to the button assembly 40 , and the cavity bottom 111 is provided with a first limiting member 112 . When the actuator 30 is in the first position, the dual-metal moving contact piece 22 abuts against the first limiting member 112 .

[0199] Through the above arrangement, when the protection switch 100 is turned on, the first limiter 112 can serve as a fulcrum of the dual-metal moving contact piece 22 , which can make the position of the dual-metal moving contact piece 22 in the installation cavity 11 more stable.

[0200] On the other hand, the first stopper 112 as a fulcrum can make the double metal moving contact piece 22 and the first stopper 112 form a lever-like form. In this way, when the actuator 30 switches from the second position to the first position, when the displacement of the lever 50 sliding along the first direction X is small, the side of the double metal moving contact piece 22 provided with the moving contact 221 can slide more, which can facilitate the contact between the moving contact 221 and the static contact 211, thereby improving the response speed of the protection switch 100 when it is opened.

[0201] Or, if Figure 2 and Figure 8 As shown, a second limiter 113 is provided on the side of the fixing member 15 facing the cavity bottom 111. The second limiter 113 is located on the side of the dual-metal moving contact piece 22 facing the static contact piece 21. When the actuator 30 is in the second position, the dual-metal moving contact piece 22 abuts against the second limiter 113.

[0202] Through the above arrangement, when the protection switch 100 is closed, the second limiter 113 can serve as a fulcrum of the dual-metal moving contact piece 22 , which can make the position of the dual-metal moving contact piece 22 in the installation cavity 11 more stable.

[0203] On the other hand, the second stopper 113 as a fulcrum can make the double-metal moving contact piece 22 and the second stopper 113 form a lever-like form. In this way, when the actuator 30 switches from the first position to the second position, when the displacement of the lever 50 sliding in the reverse direction along the first direction X is small, the side of the double-metal moving contact piece 22 provided with the moving contact 221 can slide more, which can facilitate the separation of the moving contact 221 from the static contact 211, thereby improving the response speed of the protection switch 100 when it is opened.

[0204] Alternatively, the base 10 may be provided with a first stopper 112 and a second stopper 113. In this case, the first stopper 112 and the second stopper 113 may be located at two sides of the dual-metal moving contact piece 22 in the first direction X, respectively.

[0205] In this application, if Figure 5 As shown, the bimetallic moving contact piece 22 includes a body 222 and a moving elastic piece 223 connected to the body 222 , and the moving contact point 221 is arranged on a side of the moving elastic piece 223 facing the stationary contact piece 21 .

[0206] When the protection switch 100 is opened, the body 222 can abut against the first limiter 112, and the movable spring 223 can abut against the second limiter 113. When the protection switch 100 is opened, the body 222 can abut against the second limiter 113, and the movable spring 223 can abut against the first limiter 112.

[0207] Combined with this Figure 2 To illustrate, taking the placement position of the protection switch 100 in the figure as an example, in the process of switching the protection switch 100 from the open state to the disconnected state, the actuator 30 rotates counterclockwise to make the lever 50 slide upward, and drives the right side of the double-metal moving contact piece 22 to move upward, and the left side of the double-metal moving contact piece 22 can descend and separate from the static contact piece 21.

[0208] like Figure 8 As shown, since the movable elastic piece 223 is in contact with the first limiting member 112, the first limiting member 112 can limit the movable elastic piece 223 to prevent the movable elastic piece 223 from continuously moving downward and driving the body 222 to move downward. In this way, the possibility that the movable contact piece 22 moves downward and drives the lever 50 to move downward, resulting in the lever 50 driving the actuator 30 to rotate clockwise through the second contact portion 33, can be reduced.

[0209] Therefore, when the protection switch 100 is disconnected, the actuator 30 can remain tilted, so that when the mounting member 41 is pressed next time, the mounting member 41 can drive the actuator 30 to rotate clockwise through the swing member 42. In this way, the possibility that the actuator 30 is not tilted enough, or even the actuator 30 is in a horizontal position, and the next pressing operation is not enough to turn on the contact assembly 20 can be reduced.

[0210] In order to make the swing member 42 drive the double metal moving contact piece 22 to move through the actuator 30 and the lever 50 after the protection switch 100 is disconnected, so that the double metal moving contact piece 22 contacts the static contact piece 21, when the protection switch 100 is disconnected, there may be an angle between the actuator 30 and the cavity bottom 111. The size of the angle may be greater than or equal to 10°, for example, 10°, 12°, 13.7°, 14°, etc., and the specific size of the angle is not specifically limited in the embodiment of the present application.

[0211] In addition, if Figures 1 to 3 As shown, the base 10 may include a base 17 and an upper cover 16, and the base 17 and the upper cover 16 are buckled together along the first direction X to form a mounting cavity 11. The mounting member 41 may be slidably connected to the upper cover 16, and the actuator 30 may be rotatably connected to the base 17. The stationary contact piece 21 may also be disposed on the base 17.

[0212] And, if Fig.18 and Fig. 20 As shown, a positioning column 161 may also be provided on the upper cover 16 to position the protection switch 100 when the protection switch 100 is installed on an electrical device.

[0213] In the embodiment of the present application, when the protection switch 100 is working normally and the user presses the button assembly 40 to turn off the protection switch 100, the button assembly 40 can drive the actuator 30 to rotate from the first position to the second position. When the protection switch 100 is overloaded, the contact assembly 20 can drive the actuator 30 to rotate from the first position to the second position.

[0214] That is, whether the protection switch 100 is closed by a user's pressing or by an overload, the position of the actuator 30 is the same, that is, in the second position. At this time, if the button assembly 40 receives a pressing operation, the button assembly 40 can drive the actuator 30 to rotate to the first position and drive the contact assembly 20 to be turned on again, which is consistent with the action of opening the protection switch 100 after being normally closed.

[0215] Therefore, after an overload, when the user presses the button assembly 40, the actuator 30 can drive the contact assembly 20 to switch directly to the on state, which can simplify the operation of re-energizing the protection switch 100 after an overload and improve the user experience.

[0216] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A protection switch, characterized in that: Having a first direction, the protection switch comprises a base, a contact assembly, an actuator and a button assembly, and the contact assembly has an on state and an off state; The base has an installation cavity inside, the button assembly, the actuator and the contact assembly are arranged in sequence along the first direction, the actuator, the contact assembly and at least part of the button assembly are located in the installation cavity, and the actuator is connected to the contact assembly; The actuator is rotatably connected to the base, the button assembly is slidably connected to the base along the first direction, and the portion of the button assembly facing the actuator is rotatable, and the button assembly is used to receive a pressing operation so that the portion of the button assembly facing the actuator drives the actuator to rotate, so that the actuator switches between the first position and the second position; When the actuator is located at the first position, the contact assembly is in the on state, and when the actuator is located at the second position, the contact assembly is in the off state; In the case where the protection switch is overloaded, the contact assembly can be switched from the on state to the off state, and drive the actuator to rotate to the second position.

2. The protection switch according to claim 1, characterized in that: The button assembly comprises a mounting member and a swing member, wherein the mounting member is slidably connected to the base along the first direction, and the swing member is connected to a side of the mounting member facing the contact assembly and is rotatably connected to the mounting member; The mounting member is used to receive a pressing operation. When the mounting member receives the pressing operation, the mounting member can drive the swinging member to slide along the first direction. During the sliding of the mounting member along the first direction, the swinging member can abut against the actuator and push the actuator to rotate. At the same time, the swinging member can rotate relative to the mounting member.

3. The protection switch according to claim 2, characterized in that: A reset component is also provided between the mounting member and the swing member, and the reset component is used to drive the swing member to reset when the pressing operation on the mounting member is cancelled and the mounting member is separated from the actuator.

4. The protection switch according to claim 2, characterized in that: The protection switch further includes a second direction intersecting the first direction; A rotating shaft extending in the second direction is fixed on the actuator, the rotating shaft is rotatably connected to the base, the actuator has a first contact portion and a second contact portion located on both sides of the rotating shaft, and a portion of the actuator located on a side of the rotating shaft away from the first contact portion is connected to the contact assembly; When the actuator is located at the first position, the first contact portion is close to the mounting member, and the second contact portion is far from the mounting member; When the actuator is located at the second position, the second contact portion is close to the mounting member and the first contact portion is away from the mounting member.

5. The protection switch according to claim 4, characterized in that: The protection switch further comprises a lever, the lever being slidably connected to the base along the first direction, and the lever having a first end and a second end opposite to each other in the first direction; The part of the actuator located on the side of the rotating shaft away from the first contact portion is rotationally connected to the first end, and the second end is connected to the contact assembly. The actuator and the contact assembly are driven by the shifting rod.

6. The protection switch according to claim 2, characterized in that: The protection switch further includes an elastic member, which is arranged on a side of the mounting member facing the actuator and abuts against both the mounting member and the base, and the elastic member can be extended and retracted along the first direction; The elastic member is used to drive the mounting member to drive the swing member to slide in the opposite direction along the first direction after the pressing operation on the mounting member is canceled, so that the swing member is separated from the actuator.

7. The protection switch according to claim 6, characterized in that: The mounting member is light-transmissive, and a receiving groove is provided on a side of the mounting member facing the actuator, and a light-emitting element is provided in the receiving groove; The base is further provided with a first connecting piece and a second connecting piece, the number of the elastic members is multiple, some of the elastic members are arranged between the first connecting piece and the light emitting element, and other parts of the elastic members are arranged between the second connecting piece and the light emitting element; The elastic member is a conductive member, and one end of the elastic member facing the mounting member is electrically connected to the light-emitting element. When the contact assembly is connected, the first connecting piece and the second connecting piece provide electrical energy to the light-emitting element through the elastic member to make the light-emitting element emit light.

8. The protection switch according to claim 7, characterized in that: A portion of the first connecting piece extends out of the installation cavity, and the portion of the first connecting piece extending out of the installation cavity is used to connect an external accessory; And / or, part of the second connecting piece extends out of the installation cavity, and the part of the second connecting piece extending out of the installation cavity is used to connect external accessories.

9. The protection switch according to claim 1, characterized in that: The contact assembly includes a stationary contact piece and a dual-metal moving contact piece. A fixing piece is provided in the mounting cavity. The stationary contact piece is fixed to the fixing piece. The dual-metal moving contact piece is located on a side of the stationary contact piece away from the button assembly and is connected to the actuator. The installation cavity has a cavity bottom opposite to the button assembly, and the cavity bottom is provided with a first limiter. When the actuator is in the first position, the double-metal moving contact piece abuts against the first limiter. And / or, a second limiting member is provided on the side of the fixing member facing the bottom of the cavity, and the second limiting member is located on the side of the dual-metal moving contact piece facing the static contact piece, and when the actuator is in the second position, the dual-metal moving contact piece abuts against the second limiting member.

10. An electrical device, characterized in that: The electrical equipment comprises the protection switch according to any one of claims 1 to 9.

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