Wiring terminal and socket

Abstract

The invention discloses a wiring terminal and a socket, and relates to the technical field of sockets. The wiring terminal comprises a shell, a first power connection end, a second power connection end and an overload protection piece, the first power connection end and the second power connection end are both installed on the shell and are spaced from each other, the first power connection end is provided with a static contact, and the second power connection end is connected with the overload protection piece; a movable contact is arranged at the position, corresponding to the static contact, of the overload protection piece, and the overload protection piece is configured to actuate the movable contact to move in the direction away from the static contact when the current flowing through the wiring terminal exceeds a current threshold value. The wiring terminal disclosed by the invention has an overload protection function, and the use safety of the socket can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of sockets, and in particular to a wiring terminal and a socket. Background Art

[0002] The wiring terminal is an important circuit connection component in the socket, which is used to conveniently connect the electrical components in the socket to the power cord and ensure the safety and reliability of power transmission.

[0003] In the related art, the wiring terminals of the socket generally do not have an overload protection function. During the use of the socket, if there are current and voltage instabilities, etc., it may cause the temperature of various parts of the socket to rise, causing material deformation or even burning. Summary of the invention

[0004] In view of this, the present application provides a wiring terminal and a socket, wherein the wiring terminal has an overload protection function and can improve the safety of the socket.

[0005] This application specifically adopts the following technical solutions:

[0006] A first aspect of an embodiment of the present application provides a wiring terminal, the wiring terminal comprising a housing, a first power terminal, a second power terminal and an overload protection member;

[0007] The first power connection terminal and the second power connection terminal are both mounted on the housing and are spaced apart from each other, the first power connection terminal has a static contact, and the second power connection terminal is connected to the overload protection component;

[0008] A movable contact is provided on the overload protection member at a position corresponding to the static contact, and the overload protection member is configured to actuate the movable contact to move in a direction away from the static contact when the current flowing through the wiring terminal exceeds a current threshold.

[0009] Optionally, the overload protection element is a bimetallic strip, one end of the bimetallic strip is connected to the second power connection end, and the other end of the bimetallic strip is suspended and has the moving contact.

[0010] Optionally, the terminal comprises a pressure assembly, the pressure assembly is connected to the overload protection member and is configured as follows;

[0011] When the movable contact is in a first position, a force is provided to make the movable contact close to the stationary contact; and when the movable contact is in a second position, a force is provided to keep the movable contact in the second position;

[0012] The first position is the position of the moving contact when the connection terminal is turned on; the second position is the position of the moving contact when the connection terminal is turned off due to overload.

[0013] Optionally, the pressure assembly includes a connecting member and an elastic member, the connecting member is connected to the housing, a first end of the elastic member is connected to the connecting member, a second end of the elastic member is connected to the overload protection member, and the first end is opposite to the second end;

[0014] The elastic member is always in an elastic deformation state, wherein when the moving contact is located at the first position, at least a portion of the elastic force provided by the elastic member is directed toward the static contact; when the moving contact is located at the second position, at least a portion of the elastic force provided by the elastic member is directed away from the static contact.

[0015] Optionally, the connecting member can move relative to the housing to drive the first end of the elastic member to move closer to or away from the static contact, thereby adjusting the acting force between the second end of the elastic member and the overload protection member.

[0016] Optionally, the housing is provided with an internal threaded hole, the connecting piece has an external thread, the connecting piece passes through the internal threaded hole, and is threadably matched with the internal threaded hole through the external thread; and / or,

[0017] The end of the connecting member located inside the shell has a first matching portion, and the first end of the elastic member is provided with a second matching portion, and the first matching portion and the second matching portion can be movably plugged, hooked or snap-fitted.

[0018] Optionally, a third mating portion is provided at the second end of the elastic member, and a fourth mating portion is provided on the overload protection member, the fourth mating portion is located on the side of the moving contact away from the second power connection end, and the third mating portion is used to be movably plugged, hung or snap-fitted with the fourth mating portion.

[0019] Optionally, the terminal comprises a reset assembly, which is movably mounted on the housing and located on a side of the moving contact away from the static contact, and is used to actuate the moving contact to move from the second position to the first position.

[0020] Optionally, the reset assembly includes a reset button and a return member;

[0021] The reset button is movably mounted on the housing, and the overload protection member and / or the moving contact passes through a moving path of the reset button;

[0022] The return member is used to drive the reset button back to its initial position when it is not pressed after the reset button is pressed.

[0023] A second aspect of an embodiment of the present application provides a socket, which includes the connection terminal described in the first aspect.

[0024] The wiring terminal provided in the embodiment of the present application has an overload protection member disposed between the first power connection terminal and the second power connection terminal of the circuit, the overload protection member is connected to the second power connection terminal, and the moving contact is also disposed on the overload protection member. When the circuit needs to be turned on, the overload protection member can be actuated to drive the moving contact to move so that the moving contact contacts the static contact on the first power connection terminal; when the circuit is turned on, when the current flowing through the wiring terminal is overloaded, that is, exceeds the current threshold, the overload protection member will actuate the moving contact to move in a direction away from the static contact, thereby disconnecting the circuit. Therefore, the wiring terminal provided in the embodiment of the present application has an overload protection function, which can improve the safety of the socket and ensure the safety of electricity use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the front structure of a wiring terminal provided in an embodiment of the present application;

[0027] Figure 2 yes Figure 1 The back structure diagram of the wiring terminal shown;

[0028] Figure 3 It is a schematic diagram of the internal structure of a wiring terminal provided in an embodiment of the present application;

[0029] Figure 4 is a schematic diagram of the structure of another wiring terminal provided in an embodiment of the present application when it is in a conducting state;

[0030] Figure 5 yes Figure 4 Schematic diagram of the status of the pressure component and overload protection component in the terminal block shown;

[0031] Figure 6 yes Figure 4 The schematic diagram of the structure when the wiring terminal is in a disconnected state;

[0032] Figure 7 is a structural schematic diagram of another wiring terminal provided in an embodiment of the present application when it is in a disconnected state;

[0033] Figure 8 yes Figure 7 The schematic diagram of the structure when the wiring terminal is reset;

[0034] Fig. 9 yes Figure 7 The schematic diagram of the structure when the wiring terminal is in the conducting state.

[0035] Reference numerals:

[0036] 100, first input port; 200, first output port; 300, second input port; 400, second output port; 500, third input port; 600, third output port; 700, terminal screw;

[0037] 1. Shell; 11. Internal threaded hole;

[0038] 2. First power connection terminal; 21. Static contact;

[0039] 3. The second power terminal;

[0040] 4. Overload protection member; 41. Moving contact; 42. Fourth matching portion;

[0041] 5. pressure assembly; 51. connector; 511. external thread; 512. first mating portion; 52. elastic member; 521. first end; 522. second end; 523. second mating portion; 524. third mating portion;

[0042] 6. Reset assembly; 61. Reset button; 62. Return member.

[0043] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions 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.

[0045] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and 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 limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0047] The present application embodiment provides a wiring terminal, such as Figure 3 As shown, the terminal comprises a housing 1, a first power terminal 2, a second power terminal 3 and an overload protection member 4; the first power terminal 2 and the second power terminal 3 are respectively mounted on the housing 1, and there is a gap between the first power terminal 2 and the second power terminal 3, wherein the first power terminal 2 has a static contact 21, and the second power terminal 3 is connected to the overload protection member 4; a moving contact 41 is arranged at a position corresponding to the static contact 21 on the overload protection member 4, and the overload protection member 4 is configured to: when the current flowing through the terminal exceeds a current threshold, the moving contact 41 is actuated to move in a direction away from the static contact 21.

[0048] Therefore, when the wiring terminal provided in the embodiment of the present application needs to conduct the circuit, the overload protection member 4 can be actuated to drive the moving contact 41 to move so that the moving contact 41 contacts the static contact 21 on the first power terminal 2; when the circuit is conducted, when the current flowing through the wiring terminal is overloaded, that is, exceeds the current threshold, the overload protection member 4 will actuate the moving contact 41 to move away from the static contact 21, thereby disconnecting the circuit. Therefore, the wiring terminal provided in the embodiment of the present application has an overload protection function, which can improve the safety of the socket and ensure the safety of electricity use.

[0049] In order to make the technical solutions and advantages of this application clearer, Figure 1-9 The connection terminal provided in the embodiment of the present application is further introduced and illustrated.

[0050] The wiring terminal provided in the embodiment of the present application is generally arranged between the power line and the electrical equipment (such as a socket, etc.) to provide an electrical connection function. It should be noted that the power line has three wires, namely, a neutral wire, a ground wire and a live wire. Each wiring terminal provided in the embodiment of the present application can be used to connect only one of the wires, in which case the electrical equipment needs to use three wiring terminals for wiring; or each wiring terminal provided in the embodiment of the present application can be used to connect three wires at the same time, in which case the electrical equipment only uses one wiring terminal for wiring.

[0051] Figure 1 and Figure 2 1 is a schematic diagram of the external structure of a wiring terminal provided by an embodiment of the present application at different viewing angles. The wiring terminal is the above-mentioned wiring terminal that can be used to connect three wires at the same time. Figure 1 The wiring terminal provided in the embodiment of the present application has a first input port 100, a second input port 300 and a third input port 500 on the front of the housing 1. The three input ports are used to connect the neutral wire, the ground wire and the live wire of the power line, respectively. Among them, conductive sheets (also referred to as power connection terminals in the present application) are installed inside the three input ports. After the neutral wire, the ground wire and the live wire of the power line are respectively inserted into the corresponding input ports, the metal wire cores of the neutral wire, the ground wire and the live wire are respectively in contact with the corresponding conductive sheets, thereby realizing the connection of the power connection terminal to the power circuit where the power line is located. See Figure 2 The terminal block provided in the embodiment of the present application is further provided with a first output port 200, a second output port 400 and a third output port 600 on the housing 1. The three output ports correspond to the three input ports respectively. One end of the conductive sheet inside each input port is exposed from the corresponding output port to facilitate connection with the electrical device, thereby connecting the electrical device to the power circuit.

[0052] Alternatively, if Figure 1 As shown, the wiring terminal provided in the embodiment of the present application can be a screw-type wiring terminal, that is, a terminal screw 700 is also installed at each input port of the wiring terminal. By rotating the terminal screw 700 and adjusting the depth of screwing in and out, the power cord can be tightened or loosened.

[0053] Generally speaking, since only the live wire is energized in the power line, the overload protection element 4 is usually set in the circuit where the live wire is located. For example, in the embodiment of the present application, the third input port 500 of the power terminal is provided with a first power terminal 2 and a second power terminal 3 for connecting to the circuit where the live wire is located. The first power terminal 2 and the second power terminal 3 are equivalent to the output terminal and the input terminal of the live wire. Only when the first power terminal 2 and the second power terminal 3 are both electrically conductive with the live wire, the terminal can be connected to the power circuit.

[0054] In the embodiment of the present application, in order to prevent the current in the circuit where the live wire is located from being overloaded, causing the material to deform or even burn, such as Figure 3 As shown, the first power terminal 2 and the second power terminal 3 are arranged at intervals, and an overload protection member 4 is arranged between the first power terminal 2 and the second power terminal 3. Exemplarily, the first power terminal 2 is fixedly arranged, and a static contact 21 is arranged on the first power terminal 2; the second power terminal 3 is used to be directly connected to the live wire; the overload protection member 4 is connected to the second power terminal 3, and a moving contact 41 is also arranged on the overload protection member 4, which can contact or separate with the static contact 21 arranged on the first power terminal 2 under control, so as to realize the conduction or disconnection of the circuit.

[0055] In the embodiment of the present application, a current threshold can be set according to the requirements for safe electricity use, and when the current flowing through the terminal exceeds the current threshold, the overload protection element 4 actuates the moving contact 41 away from the static contact 21, thereby disconnecting the circuit and ensuring safe electricity use.

[0056] In some embodiments of the present application, the overload protection structure may be a bimetallic strip, such as Figure 3 As shown, one end of the bimetallic strip is connected to the second power terminal 3 , and the other end is suspended and has a moving contact 41 .

[0057] The bimetallic strip is composed of two metals with different thermal expansion coefficients. When current passes through, the bimetallic strip will bend and deform due to the heat generated by the current. In the embodiment of the present application, the bimetallic strip can be designed to bend in a direction away from the static contact 21. In this way, when the circuit is overloaded, since one end of the bimetallic strip is fixed and the other end is suspended, the suspended end will bend and deform, causing the moving contact 41 to move away from the static contact 21, thereby causing the circuit to be disconnected.

[0058] exist Figure 3 In the figure, the dotted line shows the wiring structure in the on state, in which the moving contact 41 is in contact with the static contact 21, the current flowing through the terminal is equal to the current of the terminal, and the bimetallic strip does not bend or deform; the solid line shows the wiring structure in the off state due to overload, when overload occurs, the temperature of the bimetallic strip rises and it bends and deforms, thereby causing the moving contact 41 to separate from the static contact 21.

[0059] Therefore, the power terminal provided in the embodiment of the present application has a bimetallic strip between the first power terminal 2 and the second power terminal 3, has a simple structure and has an overload protection function, and occupies a small space, so it is easy to install in a socket and other electrical equipment.

[0060] Although the terminal block provided in the above embodiment can realize the overload protection function, it may also cause unstable power connection. Specifically, when the circuit is first overloaded, the heat generated by the overload current will cause the bimetallic strip to deform, thereby causing the moving contact to move away from the static contact and disconnect the circuit. However, after the circuit is disconnected, the current no longer flows through the bimetallic strip, so the bimetallic strip will cool down and gradually restore its deformation until it contacts the static contact again. After the contact, due to the circuit overload, the bimetallic strip will deform again and disconnect the circuit, and this cycle will repeat.

[0061] In order to solve the above-mentioned problem of unstable power connection, in some embodiments of the present application, such as Figures 4 to 6 As shown, the terminal includes a pressure assembly 5, which is connected to the overload protection member 4 and is configured to: provide a force to make the moving contact 41 close to the static contact 21 when the moving contact 41 is in the first position; and provide a force to keep the moving contact 41 in the second position when the moving contact 41 is in the second position. The first position is the position of the moving contact 41 when the terminal is turned on; the second position is the position of the moving contact 41 when the terminal is disconnected due to overload.

[0062] like Figure 4 As shown, when the moving contact 41 is in the first position, it contacts the static contact 21, and the terminal is in the conducting state. At this time, the pressure component 5 can apply a force to the overload protection member 4, and the force has a component force F1 directed to the static contact, so that the moving contact 41 and the static contact 21 are kept in close contact. When the overload protection member 4 is slightly deformed due to the heat generated by the circuit overload, the deformation force is small and it is difficult to overcome the component force F1 provided by the pressure component 5, so the static contact 21 and the moving contact 41 still keep in contact, and the circuit is still conducting; when the overload current is large, the heat generated is also large, the deformation degree of the overload protection member 4 increases, and the deformation force can overcome the component force F1 provided by the pressure component 5, so that the moving contact 41 is separated from the static contact 21, thereby disconnecting the circuit.

[0063] Therefore, the embodiment of the present application can suppress the unstable power connection phenomenon caused by slight deformation of the overload protection component 4 by setting the pressure component 5 in the wiring terminal, thereby improving the stability of the circuit.

[0064] Continue to see Figure 4 In some embodiments of the present application, the pressure assembly 5 may include a connecting member 51 and an elastic member 52, wherein the connecting member 51 is connected to the shell 1; the elastic member 52 has a first end 521 and a second end 522 relative to each other, wherein the first end 521 of the elastic member 52 is connected to the connecting member 51, and the second end 522 is connected to the overload protection member 4.

[0065] After the elastic member 52 is assembled, it is always in an elastic deformation state, that is, the elastic member 52 always applies elastic force to the overload protection member 4. Figure 4 As shown, when the moving contact 41 is located at the first position, at least a portion of the elastic force F1 provided by the elastic member 52 is directed toward the static contact 21, thereby making the moving contact 41 tightly abut against the static contact 21; when the moving contact 41 is located at the second position, at least a portion of the elastic force F2 provided by the elastic member 52 is directed away from the static contact 21, thereby making the moving contact 41 separate from the static contact 21, and the moving contact 41 can maintain force balance in the second position.

[0066] Optionally, the elastic member 52 is a metal spring. After being installed between the overload protection member 4 and the connecting member 51, the metal spring is always in a bent and deformed state, so it can always provide elastic force for the overload protection member 4. The metal spring can be, for example, a spring leaf.

[0067] In order to facilitate the adaptation of the deformable overload protection member 4 , the second end 522 of the elastic member 52 is movably connected to the overload protection member 4 .

[0068] In some embodiments, Figure 5 As shown, the second end 522 of the elastic member 52 is provided with a third matching portion 524, the overload protection member 4 is provided with a fourth matching portion 42, the fourth matching portion 42 is located on the side of the moving contact 41 away from the second power terminal 3, and the third matching portion 524 is matched and connected with the fourth matching portion 42. The movable connection between the third matching portion 524 and the fourth matching portion 42 can be plug-in, hook-on or clip-on.

[0069] For example, see Figure 5 The third matching portion 524 is a plug-in piece protruding from the second end 522 of the elastic member 52, and the fourth matching portion 42 is a plug-in opening opened on the bimetallic strip, the plug-in piece is inserted into the plug-in opening, and the second end 522 of the elastic member 52 abuts against the edge of the plug-in opening.

[0070] In addition, since the wiring terminal provided in the embodiment of the present application can be applicable to different types of sockets and other electrical equipment, the set current threshold and the material of the bimetallic strip used may also be different. In order to make the wiring terminal provided in the embodiment of the present application have better compatibility and versatility, in some embodiments of the present application, the connecting member 51 can move relative to the housing 1 to drive the first end 521 of the elastic member 52 to move closer to or away from the static contact 21, thereby adjusting the force between the second end 522 of the elastic member 52 and the overload protection member 4.

[0071] like Figure 4 and Figure 6As shown, the connecting member 51 is movably connected to the shell 1, wherein when the connecting member 51 moves downward relative to the shell 1 (i.e., moves toward the inside of the shell 1), the first end 521 of the elastic member 52 connected to the connecting member 51 will be driven to move downward, thereby causing the second end 522 of the elastic member 52 to tilt upward, and then the force magnitude and force point of the second end 522 of the elastic member 52 on the overload protection member 4 will change; conversely, when the connecting member 51 moves upward relative to the shell 1 (i.e., moves toward the outside of the shell 1), it will also cause the force magnitude and force point of the second end 522 of the elastic member 52 on the overload protection member 4 to change.

[0072] Therefore, when adapting to different electrical equipment, the position of the connecting piece 51 can be adjusted to change the force of the elastic piece 52 on the overload protection piece 4, thereby ensuring that when the terminal is in the on state, the moving contact 41 can be tightly against the static contact 21, thereby ensuring that the terminal has good circuit stability when used in various electrical equipment and can be adapted to various electrical equipment.

[0073] Optionally, the housing 1 is provided with an internal threaded hole 11, the connecting member 51 has an external thread 511, the connecting member 51 passes through the internal threaded hole 11, and is threadedly engaged with the internal threaded hole 11 through the external thread 511. Therefore, by rotating the connecting member 51, the connecting member 51 can be moved up or down by means of thread engagement. Exemplarily, the connecting member 51 is a screw.

[0074] Optionally, in order to facilitate the adaptation of the movable connecting member 51 , the first end 521 of the elastic member 52 is movably connected to the connecting member 51 .

[0075] In some embodiments, Figure 5 As shown, the end of the connecting member 51 located inside the housing 1 has a first matching portion 512, and the first end 521 of the elastic member 52 has a second matching portion 523, and the first matching portion 512 is matched and connected with the second matching portion 523. The movable connection between the first matching portion 512 and the second matching portion 523 can be plug-in, hook-on or clip-on.

[0076] For example, see Figure 5 The first matching portion 512 is the lower end of the rod of the screw, and the second matching portion 523 is a slot provided at the first end 521 of the elastic member 52, and the lower end of the rod of the screw is inserted into the slot and abuts against the slot.

[0077] In some embodiments of the present application, see Figure 7 The terminal block further comprises a reset assembly 6 which is movably mounted on the housing 1 and is located on a side of the movable contact 41 away from the stationary contact 21 . The reset assembly 6 is used to actuate the movable contact 41 to move from the second position to the first position.

[0078] It should be understood that if Figure 6 As shown, when the moving contact 41 is in the second position, since the elastic member 52 applies a force F2 to the overload protection member 4, and the force is greater than the elastic force generated by the overload protection member 4 due to the recovery deformation, the moving contact 41 will remain in the second position, causing the circuit to be unable to conduct again.

[0079] In this case, if Figure 7 As shown, a reset assembly 6 may be provided on a side of the movable contact 41 away from the stationary contact 21 , and the reset assembly 6 is used to actuate the overload protection element 4 or the movable contact 41 so that it can return to the first position.

[0080] Alternatively, if Figures 7 to 9 As shown, the reset assembly 6 may include a reset button 61 and a return member 62 .

[0081] The reset button 61 is mounted on the housing 1 and can move relative to the housing 1, and the overload protection member 4 and / or the movable contact 41 are arranged to pass through the moving path of the reset button 61. In this way, when the user presses the reset button 61 and applies the pressing force Fn, the reset button 61 can move toward the direction close to the overload protection member 4 and / or the movable contact 41 under the action of the pressing force Fn until it contacts the overload protection member 4 and / or the movable contact 41, and continues to push the overload protection member 4 and the movable contact 41 to move until the overload protection member 4 can break the balance and can drive the movable contact 41 to return to the first position based on its own deformation force.

[0082] The return member 62 is used to drive the reset button 61 back to its initial position when it is not pressed after the reset button 61 is pressed. For example, the return member 62 can be a spring, and the two ends of the spring are respectively connected to the inner wall of the housing 1 and the end of the reset button 61 close to the moving contact, such as Figure 8 As shown in FIG. 1 , when the reset button 61 is pressed, the spring is stretched and deformed; when the pressing force Fn is removed, as shown in FIG. Fig. 9 As shown, under the elastic force of the spring, the reset button 61 returns to the initial position when it is not pressed. In this way, based on the reset component 6, the wiring terminal is turned on again after the overload disconnection.

[0083] In summary, the terminal block provided in the embodiment of the present application has a simple and compact structure, a small size, an overload protection function, and a stable and reliable electrical connection after conduction. It has good versatility and is easy to install in various sockets and other electrical equipment.

[0084] An embodiment of the present application further provides a socket, which includes the connection terminal described in the above embodiment.

[0085] In implementation, the wiring terminal is used to correspond to the neutral wire, the ground wire, the live wire of the power line and the N-pole socket, the E-pole socket and the L-pole socket of the socket.

[0086] The socket provided in the embodiment of the present application has an overload protection function due to the use of the above-mentioned wiring terminal, and has a simple structure and is easy to connect to electricity.

[0087] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0088] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A terminal block, characterized in that: The wiring terminal comprises a housing (1), a first power connection terminal (2), a second power connection terminal (3) and an overload protection member (4); The first power connection terminal (2) and the second power connection terminal (3) are both mounted on the housing (1) and are spaced apart from each other, the first power connection terminal (2) has a static contact (21), and the second power connection terminal (3) is connected to the overload protection component (4); The overload protection element (4) has a moving contact (41) at a position corresponding to the static contact (21), and the overload protection element (4) is configured to actuate the moving contact (41) to move in a direction away from the static contact (21) when the current flowing through the connection terminal exceeds a current threshold.

2. The connection terminal according to claim 1, characterized in that: The overload protection element (4) is a bimetallic strip, one end of which is connected to the second power connection end (3), and the other end of which is suspended and has the moving contact (41).

3. The connecting terminal according to claim 1 or 2, characterized in that: The wiring terminal comprises a pressure component (5), the pressure component (5) is connected to the overload protection component (4), and is configured as follows; When the movable contact (41) is located at the first position, providing a force that causes the movable contact (41) to approach the stationary contact (21); and, when the movable contact (41) is located at the second position, providing a force to keep the movable contact (41) at the second position; The first position is the position of the moving contact (41) when the connecting terminal is turned on; and the second position is the position of the moving contact (41) when the connecting terminal is turned off due to overload.

4. The connection terminal according to claim 3, characterized in that: The pressure assembly (5) comprises a connecting member (51) and an elastic member (52), wherein the connecting member (51) is connected to the housing (1), a first end (521) of the elastic member (52) is connected to the connecting member (51), a second end (522) of the elastic member (52) is connected to the overload protection member (4), and the first end (521) and the second end (522) are opposite to each other; The elastic member (52) is always in an elastically deformed state, wherein when the movable contact (41) is located at the first position, at least a portion of the elastic force provided by the elastic member (52) is directed toward the static contact (21); and when the movable contact (41) is located at the second position, at least a portion of the elastic force provided by the elastic member (52) is directed away from the static contact (21).

5. The connection terminal according to claim 4, characterized in that: The connecting member (51) can move relative to the housing (1) to drive the first end (521) of the elastic member (52) to move closer to or away from the static contact (21), thereby adjusting the acting force between the second end (522) of the elastic member (52) and the overload protection member (4).

6. The connecting terminal according to claim 4 or 5, characterized in that: The housing (1) is provided with an internal threaded hole (11), the connecting piece (51) has an external thread (511), the connecting piece (51) passes through the internal threaded hole (11), and is threadably matched with the internal threaded hole (11) through the external thread (511); and / or, The end of the connecting member (51) located inside the shell (1) has a first matching portion (512), and the first end (521) of the elastic member (52) is provided with a second matching portion (523), and the first matching portion (512) and the second matching portion (523) can be movably plugged, hooked or snap-fitted.

7. The connecting terminal according to claim 4 or 5, characterized in that: The second end (522) of the elastic member (52) is provided with a third matching portion (524), the overload protection member (4) is provided with a fourth matching portion (42), the fourth matching portion (42) is located on a side of the movable contact (41) away from the second power connection terminal (3), and the third matching portion (524) is used to be movably plugged, hooked or snap-fitted with the fourth matching portion (42).

8. The connection terminal according to claim 3, characterized in that: The wiring terminal comprises a reset component (6), the reset component (6) being movably mounted on the housing (1) and located on a side of the movable contact (41) away from the stationary contact (21), the reset component (6) being used to actuate the movable contact (41) to move from the second position to the first position.

9. The connection terminal according to claim 8, characterized in that: The reset assembly (6) comprises a reset button (61) and a return member (62); The reset button (61) is movably mounted on the housing (1), and the overload protection element (4) and / or the moving contact (41) pass through a moving path of the reset button (61); The return member (62) is used to drive the reset button (61) to return to its initial position when it is not pressed after the reset button (61) is pressed.

10. A socket, characterized in that: The socket comprises the connection terminal according to any one of claims 1-9.

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