Shell of wiring terminal, wiring terminal and socket

Abstract

The utility model provides a shell of a wiring terminal, the wiring terminal and a socket, and belongs to the technical field of sockets. A shell of the wiring terminal comprises an L-pole wiring part, an N-pole wiring part, an E-pole wiring part and an overload protection part. In the first direction, the L-pole wiring part and the overload protection part are arranged between the N-pole wiring part and the E-pole wiring part. The L-pole wiring part and the overload protection part are arranged in the second direction, the overload protection part is located behind the L-pole wiring part, and the L-pole wiring part protrudes forwards relative to the N-pole wiring part and the E-pole wiring part. By adopting the shell of the wiring terminal provided by the utility model, the influence on the length of the socket shell can be reduced, and the wiring terminal provided by the invention can be applied on the premise that the length of the socket shell is not increased.

Description

[0001] The present disclosure claims priority to the Chinese patent application No. 202411427557.3, filed on October 12, 2024, and entitled "Wiring terminal and socket", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of sockets, in particular to a housing of a wiring terminal, a wiring terminal and a socket. BACKGROUND

[0003] With the continuous enrichment of electrical equipment, users often inadvertently overload when using a socket. When the socket is overloaded, it may cause a fire, which is very dangerous.

[0004] In related technologies, in order to enable the socket to have an overload protection function, the wiring terminal of the socket is provided with an overload protection function. For example, the L-pole conductive part in the wiring terminal has an overload protection function. When the socket is overloaded, the L-pole conductive part is disconnected, thereby avoiding danger.

[0005] However, in order to enable the L-pole conductive part to have an overload protection function, the structure of the L-pole conductive part is more complex. Correspondingly, in order to accommodate the L-pole conductive part with a more complex structure, the volume of the housing of the wiring terminal is also larger, which may make the wiring terminal unable to be applied to the existing size of the socket. SUMMARY

[0006] The present disclosure provides a housing of a wiring terminal, a wiring terminal and a socket, which can solve the technical problems existing in related technologies. The technical solutions of the housing of the wiring terminal, the wiring terminal and the socket are as follows.

[0007] In a first aspect, the present disclosure provides a housing of a wiring terminal. The housing of the wiring terminal comprises an L-pole wiring part, an N-pole wiring part, an E-pole wiring part and an overload protection part;

[0008] In the first direction, the L-pole wiring part and the overload protection part are arranged between the N-pole wiring part and the E-pole wiring part;

[0009] The L-pole wiring part and the overload protection part are arranged in the second direction, the overload protection part is located behind the L-pole wiring part, and the L-pole wiring part protrudes forward relative to the N-pole wiring part and the E-pole wiring part;

[0010] The overload protection part comprises a receiving cavity, the receiving cavity communicates with an L-pole wiring hole of the L-pole wiring part, the receiving cavity is used for accommodating an L-pole conductive part, one end of the L-pole conductive part extends into the L-pole wiring hole, and the L-pole conductive part has an overload protection function.

[0011] The second direction is perpendicular to the first direction, the wire inlet of the L-pole connecting part faces the front direction, and the rear direction is opposite to the front direction.

[0012] In a possible implementation, the overload protection part protrudes rearward relative to the N-pole connecting part and the E-pole connecting part.

[0013] In a possible implementation, in the third direction, the length of the overload protection part is greater than the length of the L-pole connecting part, the N-pole connecting part, and the E-pole connecting part.

[0014] In a possible implementation, the overload protection part includes a plurality of side walls, the plurality of side walls enclose the accommodation cavity, one end of the plurality of side walls is connected to the L-pole connecting part, and the other end extends toward the rear direction.

[0015] A first side wall in the plurality of side walls includes a first through hole for the L-pole conductive piece to pass through, and the first side wall is opposite and adjacent to a bottom wall of the socket.

[0016] In a possible implementation, in the third direction, the first side wall is recessed relative to the L-pole connecting part, the N-pole connecting part, and the E-pole connecting part.

[0017] The third direction is perpendicular to the first direction and the second direction.

[0018] In a possible implementation, the overload protection part includes a plurality of side walls, the plurality of side walls enclose the accommodation cavity, one end of the plurality of side walls is connected to the L-pole connecting part, and the other end extends toward the rear direction.

[0019] A second side wall in the plurality of side walls includes a second through hole for a reset rod to pass through, the reset rod being used to make the L-pole conductive piece in the overload protection part disconnected and then conductive again, and the second side wall is opposite and adjacent to a top wall of the socket.

[0020] In a possible implementation, in the third direction, the second side wall protrudes relative to the L-pole connecting part, the N-pole connecting part, and the E-pole connecting part.

[0021] The third direction is perpendicular to the first direction and the second direction.

[0022] In a possible implementation, the rear direction of the accommodation cavity is provided with an opening, and the shell further includes a cover plate that closes the opening.

[0023] In a second aspect, the present disclosure provides a terminal. The terminal comprises the housing, the L-pole conductive piece, the N-pole conductive piece and the E-pole conductive piece according to any one of the first aspect;

[0024] The N-pole conductive piece is arranged in the N-pole terminal part, and the E-pole conductive piece is arranged in the E-pole terminal part.

[0025] The L-pole conductive piece is partially arranged in the accommodating cavity and has one end extending into the L-pole terminal hole of the L-pole terminal part. The L-pole conductive piece has an overload protection function.

[0026] In a third aspect, the present disclosure provides a socket. The socket comprises a socket housing, an L-pole socket assembly, an N-pole socket assembly, an E-pole socket assembly and the terminal according to the second aspect.

[0027] The socket assembly and the terminal are arranged inside the socket housing. The L-pole conductive piece, the N-pole conductive piece and the E-pole conductive piece of the terminal are electrically connected to the L-pole socket assembly, the N-pole socket assembly and the E-pole socket assembly respectively.

[0028] The technical solutions provided by the present disclosure have at least the following beneficial effects:

[0029] The housing of the terminal provided by the present disclosure has less impact on the length of the socket housing when applied in the socket. The specific reasons are as follows. The socket housing comprises a cable port for the cable to extend into. After the cable extends in, it is divided into L-pole cable, N-pole cable and E-pole cable, and extends into the L-pole terminal part, the N-pole terminal part and the E-pole terminal part respectively. In order to facilitate the stripping, wiring and pressing of each pole cable, each terminal part needs to have a certain distance from the cable port. In the related art, the L-pole terminal part, the N-pole terminal part and the E-pole terminal part are flush, and the distance of each pole terminal part from the cable port along the length direction of the socket (i.e. the second direction Y) is the same (for example, D). Assuming that the L-pole terminal part, the N-pole terminal part and the E-pole terminal part of the terminal provided by the present disclosure are also flush, the distance of the L-pole terminal part, the N-pole terminal part and the E-pole terminal part from the cable port still needs to be D. However, since the overload protection part is additionally arranged behind the L-pole terminal part, the size of the overload protection part protruding backward relative to the N-pole terminal part and the E-pole terminal part is large. In order to accommodate the protruding overload protection part, the length of the socket housing needs to be increased.

[0030] The technical scheme provided by the present disclosure sets the L-pole wiring portion to protrude forward relative to the N-pole wiring portion and the E-pole wiring portion, so that the distance between the N-pole wiring portion and the E-pole wiring portion and the cable port is still D, and the distance between the L-pole wiring portion and the cable port is d, which is less than D. In this way, only the distance between the L-pole wiring portion and the cable port is reduced, which only affects the stripping, wiring and pressing of the L-pole cable, and does not affect the N-pole cable and the E-pole cable. BRIEF DESCRIPTION OF DRAWINGS

[0031] The accompanying drawings, which are incorporated into and form part of the specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure. In the drawings:

[0032] Figure 1 is a profile view of a socket provided by an embodiment of the present disclosure;

[0033] Figure 2 is a schematic view of the internal structure of a socket hidden by a bottom shell provided by an embodiment of the present disclosure;

[0034] Figure 3 is a schematic view of a wiring terminal provided by an embodiment of the present disclosure;

[0035] Figure 4 is a schematic view of a wiring terminal provided by an embodiment of the present disclosure;

[0036] Figure 5 is a schematic view of a wiring terminal hidden by a cover plate provided by an embodiment of the present disclosure;

[0037] Figure 6 is an exploded view of a wiring terminal provided by an embodiment of the present disclosure;

[0038] Figure 7 is a schematic view of an L-pole conductive member provided by an embodiment of the present disclosure;

[0039] Figure 8 is a schematic view of a wiring terminal provided by an embodiment of the present disclosure;

[0040] Figure 9 is a schematic view of an L-pole conductive member and a reset assembly provided by an embodiment of the present disclosure;

[0041] Figure 10 is a schematic view of a wiring terminal changing from a normal state to an overload state provided by an embodiment of the present disclosure;

[0042] Figure 11 is a schematic view of a wiring terminal changing from an overload state to a normal state provided by an embodiment of the present disclosure;

[0043] Figure 12is a side view of an L pole conducting piece and a reset assembly provided by an embodiment of the present disclosure;

[0044] Figure 13 is an assembly schematic view of a reset assembly provided by an embodiment of the present disclosure;

[0045] Figure 14 is an assembly schematic view of a first conducting piece and a bimetal provided by an embodiment of the present disclosure;

[0046] Figure 15 is an assembly schematic view of a second conducting piece provided by an embodiment of the present disclosure;

[0047] Figure 16 is an assembly schematic view of an N pole conducting piece and an E pole conducting piece provided by an embodiment of the present disclosure;

[0048] Figure 17 is an exploded view of a terminal provided by an embodiment of the present disclosure;

[0049] Figure 18 is a schematic view of a cover plate provided by an embodiment of the present disclosure;

[0050] Figure 19 is a schematic view of another terminal provided by an embodiment of the present disclosure;

[0051] Figure 20 is a schematic view of a terminal in a normal state provided by an embodiment of the present disclosure;

[0052] Figure 21 is a schematic view of a terminal in an overload state provided by an embodiment of the present disclosure;

[0053] Figure 22 is a schematic view of a terminal switching from an overload state to a normal state provided by an embodiment of the present disclosure.

[0054] Legend:

[0055] 100, socket shell, 1000, socket face, 1001, cable port;

[0056] 200, socket assembly, 201, L pole socket assembly, 202, N pole socket assembly, 203, E pole socket assembly;

[0057] 300, terminal;

[0058] 1, housing, 101, L terminal, 102, N terminal, 1021, first clamping position, 1022, second clamping position, 103, E terminal, 1031, third clamping position, 1032, fourth clamping position, 104, overload protection part, 11, accommodating cavity, 110, clamping hole, 111, first side wall, 1111, first through hole, 112, second side wall, 1121, second through hole, 113, third side wall, 1131, second blocking rib, 114, fourth side wall, 115, spring mounting groove, 116, positioning pin, 117, partition plate, 1171, first blocking rib, 118, third blocking rib, 119, receiving groove, 1110, cavity bottom, 12, N terminal hole, 13, L terminal hole, 14, E terminal hole;

[0059] 2, L pole conductor, 21, first conductive sheet, 211, first L pole conductive section, 212, second L pole conductive section, 213, third L pole conductive section, 22, bimetallic sheet, 220, movable contact, 221, main body section, 222, first bending section, 223, first connecting section, 224, second connecting section, 225, second bending section, 23, second conductive sheet, 230, stationary contact, 231, fourth L pole conductive section, 232, fifth L pole conductive section, 233, sixth L pole conductive section, 2331, hook portion, 234, first inner connecting section;

[0060] 3, N pole conductor, 30, second inner connecting section, 31, first N pole conductive section, 32, second N pole conductive section, 321, first protrusion, 33, third N pole conductive section, 331, second protrusion;

[0061] 4, E pole conductor, 40, third inner connecting section, 41, first E pole conductive section, 42, second E pole conductive section, 421, third protrusion, 43, third E pole conductive section, 431, fourth protrusion;

[0062] 5, reset assembly, 51, reset rod, 511, rod body, 512, partition rib, 52, elastic member;

[0063] 6, cover plate, 61, plate body, 62, buckle, 63, positioning column, 64, limiting rib;

[0064] 7, L pole pressing wire assembly;

[0065] 8, N pole pressing wire assembly;

[0066] 9, E pole pressing wire assembly;

[0067] 10, pressure assembly, 10a, screw, 10b, elastic sheet;

[0068] X, first direction, Y, second direction, Z, third direction.

[0069] The specific embodiments of the present disclosure have been shown in the above drawings, and will be described in more detail hereinafter. These drawings and detailed descriptions are not intended to limit the scope of the present disclosure concept in any way, but to illustrate the present disclosure concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0070] In order to make the purposes, technical solutions and advantages of the present disclosure clearer, the embodiments of the present disclosure will be described in more detail below with reference to the drawings.

[0071] In recent years, with the continuous improvement of living standards, users' demand for electrical equipment is also increasing. Users have more and more demand to buy wireless (without wire) sockets and then wire themselves. With the continuous enrichment of electrical equipment, users often encounter socket overload during use. When the socket is overloaded, it may cause a fire, which is very dangerous.

[0072] In related technologies, in order to improve the safety of the socket, a separate overload protector is added inside the socket. The overload protector is connected to the internal circuit of the socket. When the socket is overloaded, the overload protector cuts off the internal circuit of the socket, thereby avoiding danger.

[0073] However, the separate overload protector occupies a large space inside the socket and has a high cost. Moreover, for a single row of wireless sockets, a separate extension is often needed to place the overload protector, which makes the product appearance uncoordinated and unattractive, and increases the cost. Therefore, how to make the socket have an overload protection function without causing high cost and large size of the socket is a key technical problem.

[0074] In view of the above technical problems, the wiring terminal with an overload protection function provided by the embodiments of the present disclosure, or understood as the wiring terminal integrated with the overload protector, and the socket integrated with the wiring terminal are provided. The wiring terminal is used to realize the wiring of the socket. In this way, not only does the socket have an overload protection function, but also the internal space of the socket is saved, so that the socket with an overload protection function remains the same size as the existing ordinary socket or has a small change. Moreover, compared with the socket with an independent overload protector, the socket provided by the embodiments of the present disclosure has a lower cost.

[0075] In order to facilitate understanding of the technical solutions provided by the embodiments of the present disclosure, the original function of the wiring terminal will be introduced and described. Figure 1 The outer shape of the socket is shown. Figure 2 The internal structure diagram of the socket after hiding the bottom shell is shown. As shown in Figure 1 and Figure 2As shown, the socket includes a socket housing 100, a socket assembly 200, and a terminal block 300, with the socket assembly 200 and the terminal block 300 located inside the housing 100. The terminal block 300 is used externally to connect cables and internally to the socket assembly 200 for electrical connection. Thus, the terminal block 300 can introduce external current into the socket assembly 200.

[0076] Figure 3 and Figure 4 A schematic diagram of a terminal block 300 provided in an embodiment of this disclosure is shown. For example... Figure 3 and Figure 4 As shown, the terminal block 300 includes a housing 1 and multiple conductive elements, namely, an L-pole conductive element 2, an N-pole conductive element 3, and an E-pole conductive element 4. The housing 1 includes multiple wiring holes, namely, an L-pole wiring hole 12, an N-pole wiring hole 13, and an E-pole wiring hole 14. One end of the L-pole conductive element 2, the N-pole conductive element 3, and the E-pole conductive element 4 extends into the L-pole wiring hole 12, the N-pole wiring hole 13, and the E-pole wiring hole 14, respectively, and is used to connect to the L-pole cable, the N-pole cable, and the E-pole cable, respectively. The other end of the L-pole conductive element 2, the N-pole conductive element 3, and the E-pole conductive element 4 is used to electrically connect to the L-pole socket assembly 201, the N-pole socket assembly 202, and the E-pole socket assembly 203, respectively.

[0077] In addition, such as Figure 3 and Figure 4 As shown, to achieve the connection between the conductive component and the cable, the terminal block 300 further includes an L-polar wire crimping assembly 7, an N-polar wire crimping assembly 8, and an E-polar wire crimping assembly 9. The L-polar wire crimping assembly 7, N-polar wire crimping assembly 8, and E-polar wire crimping assembly 9 are respectively used to crimp the L-polar conductive component 2, N-polar conductive component 3, and E-polar conductive component 4 to cables of corresponding polarities. The implementation method of the wire crimping assembly is not limited in this embodiment; for example, such as... Figure 3 As shown, by tightening the screws of the L-pole wire assembly 7, N-pole wire assembly 8, and E-pole wire assembly 9, the conductive parts can be crimped to the cable.

[0078] To enable the terminal block 300 to have overload protection, the L-pole conductive element 2 in this embodiment is improved so that it can disconnect in case of overload to cut off the power supply. In other words, the L-pole conductive element 2 is equipped with overload protection. Figure 5 A schematic diagram is shown after the terminal block 300 is hidden behind the cover plate 6. Figure 6 An exploded view of the terminal block 300 is shown. Figure 7 A schematic diagram of the L-polar conductive element 2 is shown.

[0079] like Figures 5-7As shown, the L-pole conducting piece 2 includes a first conducting sheet 21, a bimetallic sheet 22 and a second conducting sheet 23 connected in sequence. Among them, the bimetallic sheet 22 is fixedly connected with one of the first conducting sheet 21 and the second conducting sheet 23, and is connected with the other through a contact. For example, as shown in Figure 7 As shown, the bimetallic sheet 22 has a movable contact 220, and the second conducting sheet 23 has a stationary contact 230. Under the elastic force of the bimetallic sheet 22, the movable contact 220 and the stationary contact 230 abut. Among them, the bimetallic sheet 22 is composed of two metals with different thermal expansion coefficients. When current passes through, the bimetallic sheet 22 will be bent and deformed due to the heat generated by the current. Of course, the bimetallic sheet 22 can also be replaced by other types of overload protection pieces. The overload protection piece refers to a metal piece that can be disconnected from the conducting sheet when an overload occurs.

[0080] In this way, when the terminal 300 is overloaded, the bimetallic sheet 22 will deform due to the temperature rise and separate from the first conducting sheet 21 or the second conducting sheet 23 (for example, the movable contact 220 and the stationary contact 230 are separated), thereby cutting off the power supply and reducing the possibility of danger.

[0081] In order to arrange the first conducting sheet 21, the bimetallic sheet 22 and the second conducting sheet 23 on the housing 1 of the terminal 300, as shown in Figure 5 and Figure 6 As shown, the housing 1 further includes a receiving cavity 11, and the receiving cavity 11 communicates with the L-pole terminal hole 12. One end of the first conducting sheet 21 extends into the L-pole terminal hole 12, the other end extends into the receiving cavity 11, and is connected with one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected with one end of the second conducting sheet 23, and the other end of the second conducting sheet 23 extends out of the receiving cavity 11 and is used to connect with the L-pole bush assembly 201.

[0082] It can be understood that, as the number of parts of the L-pole conducting piece 2 increases, the volume of the housing 1 increases, and the shape of the housing 1 changes. Next, the shape of the housing 1 is exemplarily described.

[0083] In some examples, as shown in Figures 3-6 As shown, the housing 1 includes an L-pole terminal portion 101, an N-pole terminal portion 102, an E-pole terminal portion 103 and an overload protection portion 104. Among them, the L-pole terminal portion 101 includes the L-pole terminal hole 12. The N-pole terminal portion 102 includes the N-pole terminal hole 13. The E-pole terminal portion 103 includes the E-pole terminal hole 14. The overload protection portion 104 includes the receiving cavity 11.

[0084] In some examples, as shown in Figures 3-6As shown, along the first direction X, the L-pole terminal 101 and the overload protection unit 104 are arranged between the N-pole terminal 102 and the E-pole terminal 103. Of course, in some other examples, the L-pole terminal 101 and the overload protection unit 104 may also be located on one side of the housing 1, rather than in the middle.

[0085] In some examples, such as Figures 3-6 As shown, the L-pole connection portion 101 and the overload protection portion 104 are arranged along the second direction Y, and the overload protection portion 104 is located behind the L-pole connection portion 101. Wherein, as Figure 4 As shown, the second direction Y is perpendicular to the first direction X. The inlets of the L-pole terminal 12, N-pole terminal 13, and E-pole terminal 14 face forward, and the rear faces away from the front.

[0086] In some examples, such as Figure 2 As shown, the terminal block 300 is installed in the socket in the illustrated orientation, with the first direction X parallel to the width direction of the socket and the second direction Y parallel to the length direction of the socket. Of course, in other examples, the terminal block 300 may also be installed in the socket in other orientations, and this embodiment does not limit this to such orientations.

[0087] In some examples, such as Figure 4 As shown, along the second direction Y, the L-terminal terminal 101 protrudes forward relative to the N-terminal terminal 102 and the E-terminal terminal 103. That is, as... Figure 4 As shown, the L-pole wire assembly 7 protrudes forward relative to the N-pole wire assembly 8 and the E-pole wire assembly 9. Alternatively, the L-pole wiring hole 12 protrudes forward relative to the N-pole wiring hole 13 and the E-pole wiring hole 14. This reduces the impact on the length of the socket housing 100, which is beneficial for using the wiring terminal 300 provided in this embodiment without increasing the length of the socket housing 100. The specific reasons are as follows.

[0088] Among them, such as Figure 2 As shown, the socket housing 100 includes a cable port 1001 for cable insertion. After insertion, the cable is divided into an L-pole cable, an N-pole cable, and an E-pole cable, which respectively extend into the L-pole wiring hole 12, the N-pole wiring hole 13, and the E-pole wiring hole 14. To facilitate stripping, routing, and crimping of each cable, each connection point needs to maintain a certain distance from the cable port 1001.

[0089] In the related art, the L-pole wiring portion 101, the N-pole wiring portion 102, and the E-pole wiring portion 103 are flush, and the distance of each pole wiring portion from the cable port 1001 in the length direction (i.e., the second direction Y) is the same (for example, D). Assuming that the wiring terminal 300 provided by the embodiments of the present disclosure is also flush, the distance of the L-pole wiring portion 101, the N-pole wiring portion 102, and the E-pole wiring portion 103 from the cable port 1001 still needs to be D. However, since the overload protection portion 104 is additionally provided behind the L-pole wiring portion 101, the overload protection portion 104 protrudes backward relative to the N-pole wiring portion 102 and the E-pole wiring portion 103. In order to accommodate the protruding overload protection portion 104, the length of the socket shell 100 needs to be increased.

[0090] However, the technical solution provided by the embodiments of the present disclosure sets the L-pole wiring portion 101 to protrude forward relative to the N-pole wiring portion 102 and the E-pole wiring portion 103, so that the distance of the N-pole wiring portion 102 and the E-pole wiring portion 103 from the cable port 1001 can still be D, while the distance of the L-pole wiring portion 101 from the cable port 1001 is d, which is less than D. In this way, only the distance of the L-pole wiring portion 101 from the cable port 1001 is reduced, which only has some impact on the stripping, wiring, and pressing of the L-pole cable, and does not have an impact on the N-pole cable and the E-pole cable. Moreover, it has been found through actual measurement that the actual wiring experience of the embodiments of the present disclosure is not much different from that of the existing ordinary socket.

[0091] However, since the L-pole wiring portion 101 protrudes forward relative to the N-pole wiring portion 102 and the E-pole wiring portion 103, the length by which the overload protection portion 104 protrudes backward relative to the N-pole wiring portion 102 and the E-pole wiring portion 103 is reduced (or even not protruding), and the smaller the protruding length, the easier it is to arrange the newly added overload protection portion 104 inside the socket shell 100. Therefore, it is beneficial to apply the wiring terminal 300 provided by the embodiments of the present disclosure without increasing the length of the socket shell 100.

[0092] It can be understood that if the L-pole wiring portion 101, the N-pole wiring portion 102, and the E-pole wiring portion 103 in the wiring terminal 300 provided by the embodiments of the present disclosure are flush, and the distance of each wiring portion from the cable port 1001 is d, then the stripping, wiring, and pressing of each pole cable will be affected, and the wiring experience will be affected.

[0093] Of course, in other examples, the L-pole wiring portion 101, the N-pole wiring portion 102, and the E-pole wiring portion 103 in the wiring terminal 300 provided by the embodiments of the present disclosure can also be flush in the second direction Y, and the embodiments of the present disclosure do not make specific limitations in this regard.

[0094] In some examples, as shown in FIG. 6, the L-pole wiring portion 101, the N-pole wiring portion 102, and the E-pole wiring portion 103 in the wiring terminal 300 provided by the embodiments of the present disclosure can also be flush in the second direction Y.Figure 4 As shown, the overload protection part 104 protrudes backward relative to the N-pole wiring part 102 and the E-pole wiring part 103 along the second direction Y. In this way, the size of the overload protection part 104 along the second direction Y is large, which is conducive to arranging the newly added overload protection device. Moreover, by setting the overload protection part 104 to protrude backward relative to the N-pole wiring part 102 and the E-pole wiring part 103, the size of the L-pole wiring part 101 protruding forward relative to the N-pole wiring part 102 and the E-pole wiring part 103 can be reduced, so as to avoid that the spacing between the L-pole wiring part 101 and the cable port 1001 of the socket housing 100 is too small, causing the L-pole cable wiring to be difficult.

[0095] The present embodiment does not limit the protruding position of the second conductive sheet 23 from the accommodating cavity 11. For example, as shown in FIG. 1A, the N-pole conductive part 3 protrudes from the rear of the N-pole wiring part 102, and the E-pole conductive part 4 protrudes from the rear of the E-pole wiring part 103. In some examples, the second conductive sheet 23 of the L-pole conductive part 2 also protrudes from the rear of the accommodating cavity 11 (or the rear of the overload protection part 104), that is, directly from the opening of the accommodating cavity 11. Figures 4-6 Figure 5

[0096] In some examples, in order to make the inner connection sections of the L-pole conductive part 2 (i.e., the first inner connection section 234), the N-pole conductive part 3 (i.e., the second inner connection section 30), and the E-pole conductive part 4 (i.e., the third inner connection section 40) flush (as shown in FIG. 1A and FIG. IB), the second conductive sheet 23 is arranged to pass through the first side wall 111 of the accommodating cavity 11. For example, as shown in FIG. 1C and FIG. ID, the second conductive sheet 23 is arranged to pass through the first side wall 111 of the accommodating cavity 11. Figure 5

[0097] However, generally speaking, the inner connection sections of the L-pole conductive part 2, the N-pole conductive part 3, and the E-pole conductive part 4 are flush. Therefore, the above setting needs to be adapted to adjust the plug-in socket assembly 200.

[0098] In some examples, in order to make the inner connection sections of the L-pole conductive part 2 (i.e., the first inner connection section 234), the N-pole conductive part 3 (i.e., the second inner connection section 30), and the E-pole conductive part 4 (i.e., the third inner connection section 40) flush (as shown in FIG. 1A and FIG. IB), the second conductive sheet 23 is arranged to pass through the first side wall 111 of the accommodating cavity 11. For example, as shown in FIG. 1C and FIG. ID, the second conductive sheet 23 is arranged to pass through the first side wall 111 of the accommodating cavity 11. Figure 3 Figure 4 Figure 4 Figure 5 Figure 5 ​​​​​​​As shown, the overload protection part 104 includes a plurality of side walls, which can be a first side wall 111, a second side wall 112, a third side wall 113 and a fourth side wall 114 respectively. The first side wall 111 and the second side wall 112 are oppositely arranged, and the first side wall 111 is arranged opposite to the bottom (or bottom wall) of the socket. The third side wall 113 and the fourth side wall 114 are oppositely arranged. One end of the plurality of side walls is connected with the N-pole connecting part 102, and the other end extends towards the rear. The plurality of side walls and the N-pole connecting part 102 enclose the accommodating cavity 11. In this way, the inner connection sections of the L-pole conductive part 2, the N-pole conductive part 3 and the E-pole conductive part 4 are flush. The top wall of the socket is the shell wall where the socket jacks are located, and the bottom wall is oppositely arranged with the top wall.

[0099] In some examples, as shown in Figure 4 As shown, along the third direction Z, the length L1 of the overload protection part 104 is greater than the length L2 of the L-pole connecting part 101, the N-pole connecting part 102 and the E-pole connecting part 103. In this way, it is beneficial to increase the internal space of the accommodating cavity 11.

[0100] Figure 8 A schematic view of the terminal 300 is shown. In some examples, as shown in Figure 8 As shown, along the third direction Z, the second side wall 112 of the overload protection part 104 protrudes relative to the L-pole connecting part 101, the N-pole connecting part 102 and the E-pole connecting part 103. The third direction Z is perpendicular to the first direction X and the second direction Y. The second side wall 112 is oppositely arranged with the first side wall 111. In this way, it is beneficial to increase the internal space of the accommodating cavity 11.

[0101] In some examples, along the third direction Z, the first side wall 111 is recessed relative to the L-pole connecting part 101, the N-pole connecting part 102 and the E-pole connecting part 103.

[0102] In some examples, as shown in Figure 2 As shown, when the terminal 300 is installed in the socket shell 100 in the illustrated posture, the third direction Z is parallel to the thickness direction of the socket.

[0103] In some examples, the bimetallic strip 22 extends along a third direction Z. Wherein the L-pole connecting part 101 and the overload protection part 104 are arranged along the second direction Y, the total length occupied by the L-pole connecting part 101 and the overload protection part 104 is already large. And to avoid affecting the N-pole connecting part 102 and the E-pole connecting part 103, the size of the overload protection part 104 along the first direction X is limited. Therefore, the bimetallic strip 22 is arranged to extend along the third direction Z, so that the bimetallic strip 22 has sufficient length. Wherein a component extends along a direction, means that the component is parallel to the direction, or the length direction of the component is the direction. For example, the bimetallic strip 22 extends along the third direction Z, means that the bimetallic strip 22 is parallel to the third direction Z, or the length direction of the bimetallic strip 22 is the third direction Z.

[0104] When the terminal 300 is overloaded, the bimetallic strip 22 will be disconnected from the target conductive sheet. Wherein the target conductive sheet is the conductive sheet in the first conductive sheet 21 and the second conductive sheet 23 that is connected to the bimetallic strip 22 through the contact, for example, Figure 7 the second conductive sheet 23. And in order to enable the user to continue to use the socket after the overload condition is eliminated, the terminal 300 provided by the embodiment of the present disclosure further comprises a reset assembly 5, which is configured to, when the bimetallic strip 22 is disconnected from the target conductive sheet, reconnect the bimetallic strip 22 and the target conductive sheet under the triggering of the user.

[0105] It can be understood that a part of the reset assembly 5 can be exposed on the outer surface of the socket shell 100 of the socket, so as to facilitate the user to operate (such as press) the reset assembly 5. For example, Figure 1 as shown in

[0106] The implementation of the reset assembly 5 is exemplarily described below. Figure 9 The schematic view of the reset assembly 5 and the L-pole conductive member 2 is shown.

[0107] In some examples, as shown in Figure 9 and Figure 5 the reset assembly 5 comprises a reset rod 51 and an elastic member 52. A part of the reset rod 51 is located inside the accommodating cavity 11, and another part is located outside the accommodating cavity 11. The elastic member 52 is located inside the accommodating cavity 11 and abuts against the reset rod 51. Wherein the elastic member 52 is in a compressed state.

[0108] as shown in Figure 10As shown, when the terminal 300 changes from a normal state to an overload state, the bimetallic strip 22 deforms due to the increase in temperature and separates from the target conductive piece (such as the second conductive piece 23) to cut off the power supply. After the bimetallic strip 22 separates from the second conductive piece 23, under the drive of the elastic element 52, the reset rod 51 is inserted between the contacts of the bimetallic strip 22 and the second conductive piece 23, thereby preventing the bimetallic strip 22 from rebounding to contact the second conductive piece 23 again due to the temperature drop before the overload condition is eliminated. That is, the reset assembly 5 is also used to prevent the bimetallic strip 22 from automatically contacting the second conductive piece 23 again after the bimetallic strip 22 separates from the second conductive piece 23. Here, the normal state refers to the state in which the terminal 300 normally transmits current, and the overload state refers to the state in which the terminal 300 is open-circuited. Alternatively, it can be understood that the normal state refers to the state where the current transmitted by the bimetallic strip 22 is lower than the target threshold, so that the bimetallic strip 22 does not deform or the deformation is small, and the bimetallic strip 22 does not separate from the second conductive strip 23. The overload state refers to the state where the current transmitted by the bimetallic strip 22 is higher than the target threshold, so that the bimetallic strip 22 deforms due to excessive temperature and separates from the second conductive strip 23.

[0109] like Figure 11 As shown, when the overload condition is eliminated, the user presses the reset lever 51. The reset lever 51 compresses the elastic element 52 and is pulled away from the contact between the bimetallic strip 22 and the second conductive strip 23. The bimetallic strip 22 then loses the obstruction of the reset lever 51. Since the temperature of the bimetallic strip 22 has decreased, it automatically springs back and re-contacts the second conductive strip 23. The L-pole conductive element 2 becomes conductive, and the terminal 300 returns to its normal state from the overload state. The user can then use the socket normally.

[0110] The configuration of the reset lever 51 will now be described by way of example. In some examples, such as Figures 9-11 As shown, the reset rod 51 includes a rod body 511 and a rib 512. A portion of the rod body 511 is located inside the receiving cavity 11 and abuts against the elastic member 52, while another portion is located outside the receiving cavity 11. The rib 512 is connected to one side of the rod body 511. The rib 512 is used to insert between the contacts of the bimetallic strip 22 and the target conductive sheet. In some examples, the thickness of the rib 512 is less than the width of the rod body 511, thereby facilitating the insertion of the rib 512 between the contacts of the bimetallic strip 22 and the target conductive sheet.

[0111] In some examples, such as Figure 10 and Figure 11As shown, the sliding direction of the reset rod 51 is the same as the extending direction of the bimetallic strip 22. The rod body 511 is located on one side of the bimetallic strip 22 and the target conductive sheet to avoid interfering with the bimetallic strip 22 and the target conductive sheet. The partition rib 512 is located between the bimetallic strip 22 and the target conductive sheet and can be inserted into the contact point between the bimetallic strip 22 and the target conductive sheet or separated from the contact point between the bimetallic strip 22 and the target conductive sheet under the driving of the rod body 511, so as to complete the switching between the overload state and the normal state.

[0112] In some examples, as shown in Figure 5 As shown, the rod body 511 is located on one side of the bimetallic strip 22 close to the L-pole wiring hole 12. In this way, in the second direction Y, the rod body 511 and the elastic member 52 do not occupy too much space in the accommodating cavity 11, so that the overall volume of the wiring terminal 300 is small. Moreover, since the rod body 511 and the elastic member 52 are close to the cavity bottom 1110 of the accommodating cavity 11, it is also convenient to arrange corresponding mounting structures in the accommodating cavity 11 for mounting the reset assembly 5.

[0113] Next, the shape of the bimetallic strip 22 is described. Figure 12 A side view of the L-pole conductive member 2 and the reset assembly 5 is shown. In some examples, as shown in Figure 12 As shown, the bimetallic strip 22 includes a main body section 221, a first bending section 222 and a first connecting section 223 in sequence. The first connecting section 223 is used to connect with the target conductive sheet (such as the second conductive sheet 23), and the first bending section 222 is bent away from the target conductive sheet with respect to the first connecting section 223. When the wiring terminal 300 is in the normal state, the partition rib 512 is arranged between the main body section 221 and the target conductive sheet and abuts against the first bending section 222. As shown in Figure 12 and Figure 9 As shown, the middle part of the main body section 221 is circularly recessed, and the periphery is straightly transitioned.

[0114] The design of the first bending section 222, on the one hand, increases the distance between the main body section 221 and the target conductive sheet, so that there is enough space between the main body section 221 and the target conductive sheet to accommodate the partition rib 512. On the other hand, the first bending section 222 abuts against the partition rib 512, so that the first bending section 222 can position the partition rib 512 and prevent the partition rib 512 from separating the contact point between the bimetallic strip 22 and the target conductive sheet directly under the driving of the elastic member 52. When the wiring terminal 300 is in the overload state, the first connecting section 223 is separated from the target conductive sheet due to the deformation of the bimetallic strip 22, at this time the partition rib 512 is no longer positioned by the first bending section 222, so that the partition rib 512 extends into the contact point between the first connecting section 223 and the target conductive sheet under the driving of the elastic member 52.

[0115] In some examples, one end of the main body segment 221 away from the first bending segment 222 is connected with the non-target one of the first conductive sheet 21 and the second conductive sheet 23.

[0116] In some other examples, as shown in Figure 12 the bimetallic sheet 22 further comprises a second connecting segment 224 and a second bending segment 225 connected in sequence, and the second bending segment 225 is connected with the main body segment 221. The second connecting segment 224 is used for connecting with the non-target one of the first conductive sheet 21 and the second conductive sheet 23, and the second bending segment 225 is bent away from the non-target one of the first conductive sheet 21 and the second conductive sheet 23 relative to the second connecting segment 224. In this way, a larger gap between the main body segment 221 and the target one of the first conductive sheet 21 and the second conductive sheet 23 can be formed, which is conducive to accommodating the partition rib 512. In some examples, the second connecting segment 224 is used for welding with the non-target one of the first conductive sheet 21 and the second conductive sheet 23.

[0117] In some examples, as shown in Figure 12 the second conductive sheet 23 comprises a fourth L-pole conductive segment 231, a fifth L-pole conductive segment 232 and a sixth L-pole conductive segment 233 connected in sequence. The fourth L-pole conductive segment 231 penetrates through the first side wall 111 and is used for connecting with the socket assembly 200. The sixth L-pole conductive segment 233 comprises the static contact 230 used for contacting with the dynamic contact 220 of the bimetallic sheet 22. The fifth L-pole conductive segment 232 is bent away from the bimetallic sheet 22 relative to the sixth L-pole conductive segment 233, so as to increase the distance between the fourth L-pole conductive segment 231 and the main body segment 221.

[0118] The disclosure does not make specific limitation on which side wall of the accommodating cavity 11 the reset rod 51 penetrates through. The side wall of the accommodating cavity 11 through which the reset rod 51 penetrates determines which external surface of the socket shell 100 the reset rod 51 is exposed to. The reset rod 51 provided by the disclosure can penetrate through any side wall of the accommodating cavity 11, that is, the reset rod 51 provided by the disclosure can be exposed to any external surface of the socket shell 100.

[0119] In some examples, as shown in Figure 1 the reset rod 51 is exposed to the insertion hole face 1000 of the socket shell 100. The insertion hole face 1000 is the face where the insertion hole is located, and can also be understood as the front face of the socket. By setting the reset rod 51 to be exposed to the insertion hole face 1000, the reset rod 51 is more eye-catching, which is conducive to reminding the user to operate the reset rod 51. Moreover, the reset rod 51 does not interfere with the normal placement of the socket.

[0120] Correspondingly, as shown in Figure 8As shown, the reset lever 51 needs to pass through the second sidewall 112 of the receiving cavity 11, wherein the second sidewall 112 is disposed opposite to the first sidewall 111. The first sidewall 111 is the sidewall through which the second conductive piece 23 passes. The second sidewall 112 is closest to the socket surface 1000 of the socket housing 100, which facilitates the exposure of the reset lever 51 on the socket surface 1000.

[0121] In some examples, such as Figure 5 As shown, one end of the bimetallic strip 22 is close to the first sidewall 111, and the other end is close to the second sidewall 112. The end of the bimetallic strip 22 near the second sidewall 112 is connected to the target conductive sheet via a contact. That is, the end of the bimetallic strip 22 near the second sidewall 112 has a moving contact 220. This reduces the length of the reset rod 51 and decreases the possibility of interference between the reset rod 51 and other devices in the receiving cavity 11.

[0122] In some examples, such as Figure 5 As shown, the second conductive sheet 23 is the target conductive sheet. The second conductive sheet 23 is connected to the end of the bimetallic sheet 22 near the second sidewall 112 via a contact, that is, the second conductive sheet 23 includes a stationary contact 230. Correspondingly, the first conductive sheet 21 is fixedly connected (e.g., welded) to the end of the bimetallic sheet 22 near the first sidewall 111.

[0123] The following describes the assembly method of the reset component 5 in the receiving cavity 11.

[0124] In some examples, such as Figure 13 As shown, the bottom 1110 of the receiving cavity 11 includes a spring mounting groove 115, and the second sidewall 112 of the receiving cavity 11 includes a second through hole 1121 (or reset rod through hole), which communicates with the spring mounting groove 115. The spring mounting groove 115 is used to receive the elastic element 52 (spring) and a portion of the reset rod 51. The second through hole 1121 allows the reset rod 51 to pass through.

[0125] When installing the reset assembly 5, first move the reset rod 51 into the receiving cavity 11. Then, operate the reset rod 51 so that the rod body 511 of the reset rod 51 passes through the second through hole 1121. Then, install the elastic element 52 so that the elastic element 52 surrounds the reset rod 51 and is located in the spring mounting groove 115. Under the elastic action of the elastic element 52, the reset rod 51 extends outward, but due to the presence of the partition rib 512, the reset rod 51 cannot completely extend out of the receiving cavity 11. The spring mounting groove 115 can also be replaced by a spring mounting post that extends into the interior of the elastic element 52.

[0126] The assembly method of the first conductive sheet 21 and the bimetallic sheet 22 in the receiving cavity 11 will be described below.

[0127] In some examples, as shown in Figure 14 The cavity bottom 1110 of the accommodating cavity 11 is provided with a positioning pin 116 extending along the second direction Y. The first conductive sheet 21 comprises a positioning hole 2120 into which the positioning pin 116 extends.

[0128] In some examples, as shown in Figure 14 The inside of the accommodating cavity 11 is provided with a partition plate 117. Along the first direction X, the partition plate 117 is arranged between the third side wall 113 and the fourth side wall 114 of the accommodating cavity 11 and close to the third side wall 113. The first conductive sheet 21 comprises a first L-pole conductive section 211, a second L-pole conductive section 212 and a third L-pole conductive section 213 connected in sequence. The first L-pole conductive section 211 is used to be inserted into the L-pole wiring hole 12. The second L-pole conductive section 212 is arranged opposite to the cavity bottom 1110 of the accommodating cavity 11, and the second L-pole conductive section 212 is provided with a positioning hole 2120 corresponding to the positioning pin 116. The third L-pole conductive section 213 is parallel to the second direction Y and the third direction Z, and is connected to the side of the partition plate 117 facing the fourth side wall 114.

[0129] In some examples, the side of the partition plate 117 facing the fourth side wall 114 comprises a first stop rib 1171, and a limiting groove is limited between the first stop rib 1171 and the first side wall 111. The third L-pole conductive section 213 extends into the limiting groove between the first stop rib 1171 and the first side wall 111.

[0130] When installing the first conductive sheet 21 and the bimetallic sheet 22, the first conductive sheet 21 and the bimetallic sheet 22 need to be assembled (such as welded) first, and then inserted into the accommodating cavity 11 as a whole according to the arrow direction shown. During the insertion process, the positioning pin 116 and the positioning hole 2120 can be used for auxiliary positioning. Figure 14

[0131] Next, the assembly mode of the second conductive sheet 23 in the accommodating cavity 11 is described.

[0132] In some examples, as shown in Figure 15 The first side wall 111 of the accommodating cavity 11 is provided with a first through hole 1111 (or second conductive sheet through hole) for the second conductive sheet 23 to pass through, and the first through hole 1111 is provided with an opening at the back. Thus, the second conductive sheet 23 can be inserted and installed along the second direction Y.

[0133] In some examples, as shown in Figure 15 A limiting groove is limited between the partition plate 117 and the third side wall 113, and the second conductive sheet 23 can be inserted into the limiting groove along the second direction Y.

[0134] ​In some examples, as shown in Figure 15 The third side wall 113 includes a second stop rib 1131 on one side of the partition 117, and a limiting groove is formed between the second stop rib 1131 and the partition 117.

[0135] In some examples, as shown in Figure 15 The inside of the accommodating cavity 11 includes two third stop ribs 118 extending along the second direction Y, and a limiting groove is formed between the two third stop ribs 118. As shown in Figure 15 The second conductive sheet 23 is bent at one end to form a hook portion 2311, and the hook portion 2311 is used to be inserted into the limiting groove between the two third stop ribs 118 along the second direction Y.

[0136] When installing the second conductive sheet 23, the second conductive sheet 23 is inserted in the direction indicated by the arrow in Figure 15 , and then the second conductive sheet 23 extends into the limiting groove between the two third stop ribs 118, between the partition 117 and the second stop rib 1131, and into the first through hole 1111. Among them, the hook portion 2311 extends into the limiting groove between the two third stop ribs 118.

[0137] Next, the assembly mode of the N-pole conductive part 3 and the E-pole conductive part 4 in the shell 1 is exemplarily described.

[0138] In some examples, as shown in Figure 16 The N-pole conductive part 3 includes a first N-pole conductive section 31, a second N-pole conductive section 32 and a third N-pole conductive section 33 connected in sequence, and the three conductive sections are arranged in a bent manner. The first N-pole conductive section 31 extends along the second direction Y and extends into the N-pole wiring hole 13. The second N-pole conductive section 32 is located outside the shell 1 and extends along the third direction Z. The third N-pole conductive section 33 extends along the second direction Y.

[0139] The outer wall of the shell 1 has two opposite first clamping positions 1021, and the two first clamping positions 1021 are arranged along the first direction X and are arranged on the two sides of the N-pole wiring hole 13. Correspondingly, along the first direction X, the two side walls of the second N-pole conductive section 32 respectively have first protrusions 321. The two first protrusions 321 respectively extend into the two first clamping positions 1021, thereby limiting the second N-pole conductive section 32. Among them, one first clamping position 1021 can be located on the side wall of the accommodating cavity 11.

[0140] The side wall of the shell 1 also has a second clamping position 1022. In the third direction Z, the third N-pole conductive section 33 has a second protrusion 331, and the second protrusion 331 is located in the second clamping position 1022, thereby limiting the third N-pole conductive section 33.

[0141] In some examples, as shown in Figure 16As shown, the E pole conductive member 4 includes a first E pole conductive segment 41, a second E pole conductive segment 42 and a third E pole conductive segment 43 connected in sequence, and the first E pole conductive segment 41 is located in the E pole terminal hole 14. The shape of the E pole conductive member 4 is substantially the same as that of the N pole conductive member 3, which will not be described herein again.

[0142] Correspondingly, to limit the E pole conductive member 4, the side wall of the shell 1 has two opposite third clamping sites 1031, which are arranged along the first direction X and on both sides of the E pole terminal hole 14. Along the first direction X, the second E pole conductive segment 42 has two third protrusions 421 on the two side walls thereof respectively. The two third protrusions 421 respectively extend into the third clamping sites 1031, so as to limit the second E pole conductive segment 42. One of the third clamping sites 1031 can be located on the side wall of the accommodating cavity 11.

[0143] Further, the outer wall of the shell 1 has a fourth clamping site 1032. Along the third direction Z, the third E pole conductive segment 43 has a fourth protrusion 431 located in the fourth clamping site 1032, so as to limit the third E pole conductive segment 43.

[0144] In some examples, as shown in Figure 17 The wiring terminal 300 provided by the embodiment of the present disclosure further includes a cover plate 6, which can be used to close the opening of the accommodating cavity 11. Next, the connection mode of the cover plate 6 and the shell 1 will be exemplarily described.

[0145] In some examples, the cover plate 6 is clamped with the shell 1.

[0146] In some examples, as shown in Figure 17 and Figure 18 The cover plate 6 includes a plate body 61 and two buckles 62, which are located on the side of the plate body 61 facing the cavity bottom 1110 of the accommodating cavity 11. The cavity wall of the accommodating cavity 11 includes two clamping holes 110. The two buckles 62 of the cover plate 6 are clamped with the two clamping holes 110 respectively.

[0147] In some examples, as shown in Figure 17 The two buckles 62 are opposite, and the two clamping holes 110 are also opposite.

[0148] In some examples, as shown in Figure 17 The two clamping holes 110 are arranged on the first side wall 111 and the second side wall 112 of the accommodating cavity 11 respectively.

[0149] In order to make the connection of the cover plate 6 and the shell 1 more stable and facilitate the positioning of the cover plate 6, in some examples, as shown in Figure 17As shown, the cover plate 6 further comprises a positioning post 63 located on the side of the plate body 61 facing the cavity bottom 1110 of the accommodating cavity 11. The interior of the accommodating cavity 11 comprises a receiving groove 119 for receiving the positioning post 63.

[0150] In some examples, as shown in Figure 17 As shown, the receiving groove 119 is connected with the fourth side wall 114.

[0151] In some examples, the positioning post 63 is tightly fitted (e.g. interference) with the receiving groove 119, so that the connection between the cover plate 6 and the shell 1 is more stable.

[0152] In some examples, as shown in Figure 17 and Figure 18 As shown, the cover plate 6 comprises a limiting rib 64 located on the side of the plate body 61 facing the cavity bottom 1110 of the accommodating cavity 11 and extending into the interior of the accommodating cavity 11. The limiting rib 64 is used to limit the position of the bimetallic strip 22 to prevent the bimetallic strip 22 from shaking.

[0153] In some examples, the limiting rib 64 is opposite to the connection between the bimetallic strip 22 and the first conductive piece 21, and is located on the side of the bimetallic strip 22 facing away from the first conductive piece 21 and in contact with the bimetallic strip 22 to limit the bimetallic strip 22.

[0154] Next, the assembly sequence of the L-pole conductive piece 2 and the reset assembly 5 will be described by way of example in combination with the above description.

[0155] In the first step, please refer to Figure 13 , the reset assembly 5 is installed on the shell 1. In the second step, please refer to Figure 14 , the first conductive piece 21 and the bimetallic strip 22 are inserted into the interior of the accommodating cavity 11 as a whole according to the direction of the arrows shown in the figure. In the third step, please refer to Figure 15 , the second conductive piece 23 is inserted into the interior of the accommodating cavity 11 according to the direction of the arrows shown in the figure, and the limiting rib 512 of the reset rod 51 is operated to abut against the first bent section 222 of the bimetallic strip 22. In the fourth step, please refer to Figure 17 , the opening of the accommodating cavity 11 is closed by using the cover plate 6.

[0156] The assembly of the N-pole conductive piece 3 and the E-pole conductive piece 4 is relatively independent compared with the assembly of the L-pole conductive piece 2 and the reset assembly 5. Therefore, the assembly of the N-pole conductive piece 3 and the E-pole conductive piece 4 can be performed before, after or during the assembly of the L-pole conductive piece 2 and the reset assembly 5. Similarly, the L-pole pressure wire assembly 7, the N-pole pressure wire assembly 8 and the E-pole pressure wire assembly 9 can be assembled at the end.

[0157] It should be noted that the first conductive sheet 21, the bimetallic sheet 22, the second conductive sheet 23, the reset assembly 5 and the corresponding structural members constitute an overload protection mechanism or an overload protector, which is integrated in the terminal 300, so that the terminal 300 has an overload protection function. In other examples, the overload protector described above can also be used alone, that is, not integrated with the terminal 300, and can be arranged in the interior of the socket independently.

[0158] Correspondingly, the embodiment of the present disclosure also provides an overload protector. Please refer to Figures 5-6 and Figures 9-12 , the overload protector includes a housing 1, a first conductive sheet 21, a bimetallic sheet 22, a second conductive sheet 23, a reset rod 51 and an elastic member 52. Wherein, the housing 1 can be a housing independent of the terminal 300. The housing 1 includes a receiving cavity 11, and the bimetallic sheet 22 is located in the receiving cavity 11.

[0159] One end of the first conductive sheet 21 is located outside the receiving cavity 11 for wiring, and the other end extends into the interior of the receiving cavity 11 and is fixedly connected with one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected with one end of the second conductive sheet 23 through a contact. The other end of the second conductive sheet 23 extends out of the receiving cavity 11 for wiring.

[0160] As shown in Figures 9-12 , the bimetallic sheet 22 and the second conductive sheet 23 are arranged side by side and both extend along the third direction Z. The reset rod 51 includes a rod body 511 and a partition rib 512. The rod body 511 is slidingly connected with the housing 1 along the third direction Z and abuts against the elastic member 52. The partition rib 512 is connected with one side of the rod body 511 and arranged between the bimetallic sheet 22 and the second conductive sheet 23.

[0161] As shown in Figure 10 , when the overload protector changes from a normal state to an overload state, the bimetallic sheet 22 and the second conductive sheet 23 are disconnected. The elastic member 52 drives the partition rib 512 to insert between the contacts of the bimetallic sheet 22 and the second conductive sheet 23. When the reset rod 51 is pressed, the partition rib 512 is separated from the contacts of the bimetallic sheet 22 and the second conductive sheet 23, and the bimetallic sheet 22 and the second conductive sheet 23 are reconnected.

[0162] It should be noted that the specific structure and mounting mode of the first conductive sheet 21, the bimetallic sheet 22, the second conductive sheet 23, the reset rod 51 and the elastic member 52, and other related technical features can refer to the foregoing content, and will not be described here. The overload protector provided by the embodiment of the present disclosure is different from the foregoing wiring terminal 300 in that the overload protector does not include the above-mentioned various wiring parts. It can be understood that the above-mentioned overload protection part 104 can be understood as the housing 1, and the overload protection part 104 and various devices assembled on the overload protection part 104 can be understood as an overload protector.

[0163] In addition to the foregoing overload protector, the embodiment of the present disclosure also provides another overload protector in another implementation manner, which can be integrated in the wiring terminal 300 or used alone.

[0164] Next, the wiring terminal 300 integrated with another overload protector is exemplarily described.

[0165] Figure 19 The external view of another wiring terminal 300 is shown. Figure 20 The schematic view of the wiring terminal 300 in a normal state is shown, Figure 21 The schematic view of the wiring terminal 300 in an overload state is shown, Figure 22 The schematic view of the wiring terminal 300 switched from the overload state to the normal state is shown.

[0166] As Figures 20-22 shown, the wiring terminal 300 includes the housing 1, the first conductive sheet 21, the bimetallic sheet 22 and the second conductive sheet 23. The housing 1 includes the L-pole wiring hole 12 and the accommodating cavity 11. One end of the first conductive sheet 21 extends into the L-pole wiring hole 12, the other end extends into the accommodating cavity 11, and is connected with one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected with one end of the second conductive sheet 23, the other end of the second conductive sheet 23 extends out of the accommodating cavity 11, and is used to be connected with the L-pole plug sleeve assembly 201. Among them, the bimetallic sheet 22 includes a movable contact 220, and the second conductive sheet 23 includes a stationary contact 230.

[0167] As Figure 20 shown, in the normal state, the movable contact 220 and the stationary contact 230 are in contact. As Figure 21 shown, in the overload state, the bimetallic sheet 22 is deformed by heat, so that the movable contact 220 and the stationary contact 230 are separated.

[0168] In order to avoid the bimetallic sheet 22 automatically rebounds after the temperature decreases under the premise that the overload condition is not eliminated, so that the movable contact 220 and the stationary contact 230 re-contact. In some examples, as Figures 20-22As shown, the terminal 300 further comprises a pressure assembly 10 connected with the bimetallic strip 22, which is configured to provide a force to make the movable contact 220 close to the fixed contact 230 when the movable contact 220 contacts the fixed contact 230, and to keep the movable contact 220 in the current position after the movable contact 220 is separated from the fixed contact 230, so as to prevent the bimetallic strip 22 from automatically rebounding and reconnecting with the second conductive strip 23.

[0169] In some examples, as shown in FIG. 1, the pressure assembly 10 comprises a screw 10a connected with the housing 1 and a spring 10b having one end connected with the screw 10a and the other end connected with the bimetallic strip 22. Figures 20-22

[0170] After the spring 10b is assembled, it is always in an elastically deformed state, i.e., the spring 10b always exerts an elastic force on the bimetallic strip 22. When the movable contact 220 contacts the fixed contact 230, at least a part of the elastic force provided by the spring 10b is directed towards the fixed contact 230, so that the movable contact 220 is tightly abutted with the fixed contact 230. When the movable contact 220 is separated from the fixed contact 230, at least a part of the elastic force provided by the spring 10b is directed away from the fixed contact 230, so that the movable contact 220 is kept in the separated state with the fixed contact 230. By rotating the screw 10a, the elastic force exerted by the spring 10b on the bimetallic strip 22 can be adjusted.

[0171] In order to enable the user to continue using the socket after the overload condition is eliminated. As shown in FIG. 1, the terminal 300 further comprises a reset assembly 5. As shown in FIG. 2, the reset assembly 5 comprises a reset lever 51 and an elastic member 52. Figures 20-22 Figures 20-22

[0172] The reset lever 51 is installed on the housing 1 and is movable relative to the housing 1, and the bimetallic strip 22 and / or the movable contact 220 are located on the moving path of the reset lever 51. Thus, as shown in FIG. 3, when the user presses the reset lever 51 to exert a pressing force Fn, the reset lever 51 can move towards the bimetallic strip 22 and / or the movable contact 220 under the action of the pressing force Fn until it abuts against the bimetallic strip 22 and / or the movable contact 220, and continues to push the bimetallic strip 22 and the movable contact 220 to move until the bimetallic strip 22 can break the balance and drive the movable contact 220 to contact the fixed contact 230 based on the deformation force of itself. Figure 21 The elastic member 52 is used to drive the reset lever 51 back to the initial position when it is not pressed. Exemplarily, the elastic member 52 is a spring, and both ends of the spring are connected with the inner wall of the housing 1 and the end of the reset lever 51 close to the movable contact 220, respectively. As shown in FIG. 4, when the reset lever 51 is not pressed, the spring 52 is in an elastically deformed state, i.e., the spring 52 always exerts an elastic force on the reset lever 51. When the reset lever 51 is pressed, the spring 52 is compressed, and the elastic force provided by the spring 52 is directed towards the reset lever 51, so that the reset lever 51 is kept in the pressed state. When the reset lever 51 is not pressed, the spring 52 is released, and the elastic force provided by the spring 52 is directed away from the reset lever 51, so that the reset lever 51 is kept in the initial position.

[0173] Figure 22 ​​​​As shown, when the reset rod 51 is pressed, the spring is stretched and deformed, and when the pressing force is removed, the reset rod 51 returns to the initial position before being pressed under the elastic force of the spring.

[0174] The above only describes optional embodiments of the present disclosure, and is not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A housing for a terminal, characterized by The terminal housing comprises an L terminal (101), an N terminal (102), an E terminal (103) and an overload protection part (104); In the first direction (X), the L terminal (101) and the overload protection part (104) are arranged between the N terminal (102) and the E terminal (103); The L terminal (101) and the overload protection part (104) are arranged in the second direction (Y), the overload protection part (104) is located behind the L terminal (101), and the L terminal (101) protrudes forward relative to the N terminal (102) and the E terminal (103); The overload protection part (104) comprises a receiving cavity (11) which communicates with an L terminal hole (12) of the L terminal (101), the receiving cavity (11) is used for accommodating an L conductive part (2), one end of the L conductive part (2) extends into the L terminal hole (12), and the L conductive part (2) has an overload protection function; The second direction (Y) is perpendicular to the first direction (X), the wire inlet port of the L terminal hole (12) faces the front direction, and the rear direction is opposite to the front direction.

2. The housing of the terminal according to claim 1, characterized in that The overload protection part (104) protrudes backward relative to the N terminal (102) and the E terminal (103).

3. The housing of the terminal according to claim 1 or 2, characterized in that In the third direction (Z), the length of the overload protection part (104) is greater than the lengths of the L terminal (101), the N terminal (102) and the E terminal (103).

4. The housing of the terminal according to claim 1 or 2, characterized in that The overload protection part (104) comprises a plurality of side walls which enclose the receiving cavity (11), one end of the plurality of side walls is connected to the L terminal (101), and the other end extends toward the rear direction; A first side wall (111) in the plurality of side walls comprises a first through hole (1111) for the L conductive part (2) to pass through, wherein the first side wall (111) is opposite and adjacent to the bottom wall of the socket.

5. The housing of the terminal according to claim 4, characterized in that In the third direction (Z), the first side wall (111) is recessed relative to the L terminal (101), the N terminal (102) and the E terminal (103); The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

6. The housing of the terminal according to claim 1 or 2, characterized in that The overload protection part (104) comprises a plurality of side walls which enclose the receiving cavity (11), one end of the plurality of side walls is connected to the L terminal (101), and the other end extends toward the rear direction; A second side wall (112) in the plurality of side walls comprises a second through hole (1121) for a reset rod (51) to pass through, the reset rod (51) is used for making the L conductive part (2) disconnected and then conductive again, wherein the second side wall (112) is opposite and adjacent to the top wall of the socket.

7. The housing of the terminal according to claim 6, characterized in that The second side wall (112) protrudes relative to the L-pole terminal portion (101), the N-pole terminal portion (102) and the E-pole terminal portion (103) along a third direction (Z); The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

8. The housing of the terminal according to claim 1 or 2, characterized in that The accommodating cavity (11) is provided with an opening at the back, and the shell (1) further comprises a cover plate (6) which closes the opening.

9. A wiring terminal characterized by comprising: The terminal (300) comprises the shell (1), the L-pole conducting member (2), the N-pole conducting member (3) and the E-pole conducting member (4) as claimed in any one of claims 1-8. The N-pole conducting member (3) is arranged in the N-pole terminal portion (102), and the E-pole conducting member (4) is arranged in the E-pole terminal portion (103). The L-pole conducting member (2) is partially arranged in the accommodating cavity (11) and has one end extending into the L-pole terminal hole (12) of the L-pole terminal portion (101), and the L-pole conducting member (2) has an overload protection function.

10. A socket, characterized by The socket comprises a socket shell (100), an L-pole socket assembly (201), an N-pole socket assembly (202), an E-pole socket assembly (203) and the terminal (300) as claimed in claim 9. The socket assembly (200) and the terminal (300) are arranged inside the socket shell (100), and the L-pole conducting member (2), the N-pole conducting member (3) and the E-pole conducting member (4) of the terminal (300) are electrically connected with the L-pole socket assembly (201), the N-pole socket assembly (202) and the E-pole socket assembly (203) respectively.

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