Wiring terminal and socket

Abstract

The invention provides a wiring terminal and a socket, and belongs to the technical field of sockets. The wiring terminal comprises a housing and a plurality of conductive members. The shell comprises a plurality of wiring holes and an accommodating cavity. And the accommodating cavity is communicated with an L-pole wiring hole in the plurality of wiring holes. The L-pole conductive part in the plurality of conductive parts comprises a first conductive sheet, a bimetallic sheet and a second conductive sheet. One end of the first conducting strip extends into the L-pole wiring hole, and the other end of the first conducting strip extends into the accommodating cavity and is connected with one end of the bimetallic strip. And the other end of the bimetallic strip is connected with one end of the second conducting strip. And the other end of the second conducting strip extends out of the accommodating cavity and is used for being connected with an L-pole plug bush assembly. And when the wiring terminal is overloaded, the bimetallic strip is disconnected with the first conducting strip or the second conducting strip, so that the power supply is cut off, and the possibility of danger is reduced. Therefore, the wiring terminal provided by the invention has an overload protection function, so that the safety of the socket can be improved, and the size of the socket is not increased.

Description

Technical Field

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

[0002] As electrical appliances become more and more numerous, users often inadvertently experience overloads when using sockets. When a socket is overloaded, it can cause a fire, which is very dangerous. Therefore, how to make the socket have an overload protection function is a key technical issue. Summary of the invention

[0003] The present disclosure provides a wiring terminal and a socket, which can solve the technical problems existing in the related art. The technical solutions of the wiring terminal and the socket are as follows.

[0004] In a first aspect, the present disclosure provides a wiring terminal. The wiring terminal is used in a socket, and comprises a housing and a plurality of conductive members, wherein the housing comprises a plurality of wiring holes, and the plurality of wiring holes are respectively used to realize the connection between the plurality of conductive members and corresponding cables;

[0005] The housing further comprises a receiving cavity, the receiving cavity being in communication with an L-pole wiring hole among the plurality of wiring holes;

[0006] The L-pole conductive member among the plurality of conductive members comprises a first conductive sheet, a bimetallic sheet, and a second conductive sheet;

[0007] One end of the first conductive sheet extends into the L-pole wiring hole, and the other end extends into the accommodating cavity and is connected to one end of the bimetallic sheet, the other end of the bimetallic sheet is connected to one end of the second conductive sheet, and the other end of the second conductive sheet extends out of the accommodating cavity and is used to be connected to the L-pole socket assembly;

[0008] Wherein, the bimetallic strip is connected to the first conductive strip or the second conductive strip via a contact point.

[0009] In a possible implementation, the housing includes an L-pole connection portion, an N-pole connection portion, an E-pole connection portion, and an overload protection portion;

[0010] The L-pole connection portion includes the L-pole connection hole, the N-pole connection portion includes the N-pole connection hole, the E-pole connection portion includes the E-pole connection hole, and the overload protection portion includes the accommodating cavity;

[0011] Along the first direction, the L-pole connection portion and the overload protection portion are arranged between the N-pole connection portion and the E-pole connection portion;

[0012] The L-pole connection portion and the overload protection portion are arranged along a second direction, and the overload protection portion is located behind the L-pole connection portion, wherein the second direction is perpendicular to the first direction, the line inlets of the L-pole connection hole, the N-pole connection hole and the E-pole connection hole are facing forward, and the rear is opposite to the front.

[0013] In a possible implementation, along the second direction, the L-pole connecting portion protrudes forward relative to the N-pole connecting portion and the E-pole connecting portion.

[0014] In a possible implementation, along the second direction, the overload protection portion protrudes rearward relative to the N-pole connecting portion and the E-pole connecting portion.

[0015] In a possible implementation, the overload protection portion includes a plurality of side walls, one end of the plurality of side walls is connected to the N-pole wiring portion, and the other end of the plurality of side walls extends toward the rear, and the plurality of side walls enclose the accommodating cavity;

[0016] The second conductive sheet passes through a first side wall among the plurality of side walls, wherein the first side wall is used to be opposite to a bottom of the socket.

[0017] In a possible implementation, the plurality of conductive members further include an N-pole conductive member and an E-pole conductive member;

[0018] The inner connecting section of the second conductive sheet, the inner connecting section of the N-pole conductive member and the inner connecting section of the E-pole conductive member are flush, wherein the inner connecting section is used to connect with the socket assembly.

[0019] In a possible implementation, along the third direction, the second side wall of the overload protection portion protrudes relative to the L-pole connection portion, the N-pole connection portion, and the E-pole connection portion;

[0020] Wherein, the third direction is perpendicular to the first direction and the second direction, and the second side wall is arranged opposite to the first side wall.

[0021] In a possible implementation manner, the bimetallic strip extends along the third direction.

[0022] In a possible implementation, the connection terminal further includes a reset component;

[0023] The reset component is configured to reconnect the bimetallic strip to the target conductive strip after the bimetallic strip is disconnected from the target conductive strip;

[0024] The target conductive sheet is a conductive sheet, among the first conductive sheet and the second conductive sheet, which is connected to the bimetallic sheet through a contact.

[0025] In a possible implementation, the reset assembly includes a reset rod and an elastic member;

[0026] A portion of the reset rod is located inside the accommodating cavity, and another portion is located outside the accommodating cavity; the elastic member is located inside the accommodating cavity and abuts against the reset rod;

[0027] When the connection terminal changes from a normal state to an overload state, the bimetallic strip is disconnected from the target conductive strip, and the elastic member drives the reset rod to be inserted between the contact points of the bimetallic strip and the target conductive strip;

[0028] When the reset rod is pressed, the reset rod is withdrawn from between the contact points of the bimetallic strip and the target conductive strip, and the bimetallic strip is reconnected with the target conductive strip.

[0029] In a possible implementation, the reset rod includes a rod body and a spacer rib;

[0030] A portion of the rod body is located inside the accommodating cavity and abuts against the elastic member, and another portion of the rod body is located outside the accommodating cavity;

[0031] The partition rib is connected to one side of the rod body, and the partition rib is used to be inserted between the contact point of the bimetallic strip and the target conductive strip.

[0032] In a possible implementation, the sliding direction of the reset rod is the same as the extending direction of the bimetallic strip;

[0033] The rod body is located on one side of the bimetallic strip and the target conductive strip;

[0034] The partition rib is located between the bimetallic strip and the target conductive strip, and can be inserted between the contact points of the bimetallic strip and the target conductive strip, or can be withdrawn from the contact points of the bimetallic strip and the target conductive strip, driven by the rod.

[0035] In a possible implementation, the rod body is located on a side of the bimetallic strip close to the L-pole wiring hole.

[0036] In a possible implementation, the bimetallic strip includes a main body section, a first bending section, and a first connecting section that are connected in sequence;

[0037] The first connecting section is used to connect with the target conductive sheet via a contact point, and the first bending section is bent relative to the first connecting section in a direction away from the target conductive sheet;

[0038] When the connection terminal is in a normal state, the partition rib is located between the main body section and the target conductive sheet, and abuts against the first bending section.

[0039] In a possible implementation, the bimetallic strip further includes a second connecting segment and a second bending segment connected in sequence, wherein the second bending segment is connected to the main body segment;

[0040] The second connecting section is used to connect to a non-target conductive sheet among the first conductive sheet and the second conductive sheet, and the second bending section is bent relative to the second connecting section in a direction away from the non-target conductive sheet.

[0041] In a possible implementation, the second conductive sheet passes through the first side wall of the accommodating cavity, and the reset rod passes through the second side wall of the accommodating cavity;

[0042] Wherein, the first side wall and the second side wall are arranged opposite to each other.

[0043] In a possible implementation, one end of the bimetallic strip is close to the first side wall, and the other end is close to the second side wall;

[0044] One end of the bimetallic strip close to the second side wall is connected to the target conductive strip via a contact point.

[0045] In a second aspect, the present disclosure provides a socket, comprising a socket housing, a socket assembly, and a terminal block as described in any one of the first aspects;

[0046] The socket assembly and the connection terminal are located inside the socket housing, and a plurality of conductive members of the connection terminal are electrically connected to socket assemblies of different polarities respectively.

[0047] In a possible implementation manner, a portion of the reset assembly is exposed on an outer surface of the socket housing.

[0048] In a possible implementation manner, a portion of the reset assembly is exposed on the socket surface of the socket housing.

[0049] The technical solution provided by the present disclosure includes at least the following beneficial effects:

[0050] The L-pole conductive member of the terminal provided by the present disclosure comprises a first conductive sheet, a bimetal sheet, and a second conductive sheet connected in sequence, and the bimetal sheet is connected to the first conductive sheet or the second conductive sheet through a contact point. Thus, when the terminal is in an overload state, the bimetal sheet will deform due to the increase in temperature and disconnect from the contact point between the first conductive sheet or the second conductive sheet, thereby cutting off the power supply and reducing the possibility of danger.

[0051] Furthermore, by providing a housing cavity for accommodating the first conductive sheet, the bimetallic sheet, and the second conductive sheet in the housing of the terminal, the bimetallic sheet, the first conductive sheet, and the second conductive sheet are integrated in the terminal. Compared with the total space occupied by the separate terminal and the overload protector in the related art, the terminal with overload protection function of the present invention occupies a smaller space, so that the socket does not need to increase the volume or only needs to increase a small amount of volume to accommodate the terminal of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description, are used to explain the principles of the present disclosure. In the drawings:

[0053] Figure 1 is an appearance diagram of a socket provided by an embodiment of the present disclosure;

[0054] Figure 2 It is a schematic diagram of the internal structure of a socket behind a hidden bottom shell provided by an embodiment of the present disclosure;

[0055] Figure 3 is a schematic diagram of a wiring terminal provided by an embodiment of the present disclosure;

[0056] Figure 4 is a schematic diagram of a wiring terminal provided by an embodiment of the present disclosure;

[0057] Figure 5 This is a schematic diagram of a wiring terminal with a hidden cover provided by an embodiment of the present disclosure;

[0058] Figure 6 is an exploded view of a terminal block provided by an embodiment of the present disclosure;

[0059] Figure 7 is a schematic diagram of an L-pole conductive member provided by an embodiment of the present disclosure;

[0060] Figure 8 is a schematic diagram of a wiring terminal provided by an embodiment of the present disclosure;

[0061] Fig. 9 is a schematic diagram of an L-pole conductive member and a reset assembly provided by an embodiment of the present disclosure;

[0062] Fig.10 is a schematic diagram of a connection terminal provided by an embodiment of the present disclosure changing from a normal state to an overload state;

[0063] Fig.11 is a schematic diagram of a connection terminal provided by an embodiment of the present disclosure changing from an overload state to a normal state;

[0064] Fig.12 is a side view of an L-pole conductive member and a reset assembly provided by an embodiment of the present disclosure;

[0065] Fig.13 is an assembly diagram of a reset component provided by an embodiment of the present disclosure;

[0066] Fig.14 is a schematic diagram of assembling a first conductive sheet and a bimetallic sheet provided by an embodiment of the present disclosure;

[0067] Fig.15 is a schematic diagram of assembling a second conductive sheet provided by an embodiment of the present disclosure;

[0068] Fig.16 It is a schematic diagram of assembling an N-pole conductive member and an E-pole conductive member provided by an embodiment of the present disclosure;

[0069] Fig.17 is an exploded view of a terminal block provided by an embodiment of the present disclosure;

[0070] Fig.18 is a schematic diagram of a cover plate provided by an embodiment of the present disclosure;

[0071] Fig.19 is a schematic diagram of another wiring terminal provided by an embodiment of the present disclosure;

[0072] Fig. 20 is a schematic diagram of a wiring terminal in a normal state provided by an embodiment of the present disclosure;

[0073] Fig.21 is a schematic diagram of a wiring terminal in an overload state provided by an embodiment of the present disclosure;

[0074] Fig. 22 It is a schematic diagram of a connection terminal switching from an overload state to a normal state provided by an embodiment of the present disclosure.

[0075] Legend:

[0076] 100, socket housing, 1000, socket surface;

[0077] 200, plug sleeve assembly, 201, N pole plug sleeve assembly, 202, L pole plug sleeve assembly, 203, E pole plug sleeve assembly;

[0078] 300, terminal blocks;

[0079] 1. Shell, 101. L-pole connection part, 102. N-pole connection part, 1021. First clamping position, 1022. Second clamping position, 103. E-pole connection part, 1031. Third clamping position, 1032. Fourth clamping position, 104. Overload protection part, 11. Accommodating cavity, 110. Clamping hole, 111. First side wall, 1111. Second conductive sheet perforation, 112. Second side wall, 1121. Reset rod perforation, 113. Third side wall, 1131. Second retaining rib, 114. Fourth side wall, 115. Spring mounting groove, 116. Positioning pin, 117. Partition plate, 1171. First retaining rib, 118. Third retaining rib, 119. Receiving groove, 12. N-pole connection hole, 13. L-pole connection hole, 14. E-pole connection hole;

[0080] 2. L-pole conductive member, 21. first conductive sheet, 211. first L-pole conductive segment, 212. second L-pole conductive segment, 213. third L-pole conductive segment, 22. bimetallic sheet, 220. moving contact, 221. main body segment, 222. first bending segment, 223. first connecting segment, 224. second connecting segment, 225. second bending segment, 23. second conductive sheet, 230. static contact, 231. fourth L-pole conductive segment, 232. fifth L-pole conductive segment, 233. sixth L-pole conductive segment, 2331. hook portion;

[0081] 3. N-pole conductive member, 31. first N-pole conductive segment, 32. second N-pole conductive segment, 321. first protrusion, 33. third N-pole conductive segment, 331. second protrusion;

[0082] 4. E-pole conductive member, 41. first E-pole conductive segment, 42. second E-pole conductive segment, 421. third protrusion, 43. third E-pole conductive segment, 431. fourth protrusion;

[0083] 5. reset assembly, 51. reset rod, 511. rod body, 512. spacer rib, 52. elastic member;

[0084] 6. cover plate, 61. plate body, 62. buckle, 63. positioning column, 64. limiting rib;

[0085] 7. L-pole crimping assembly;

[0086] 8. N-pole wire pressing assembly;

[0087] 9. E-pole pressure wire assembly;

[0088] 10. pressure assembly, 10a. screw, 10b. spring;

[0089] X, first direction, Y, second direction, Z, third direction.

[0090] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0091] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0092] In recent years, with the continuous improvement of living standards, users' demands for electrical equipment have also been increasing. Users are increasingly demanding to purchase wireless (without wires) sockets and then connect them themselves. As electrical equipment continues to increase, users often experience socket overloads when using sockets. When sockets are overloaded, they can cause fires in serious cases, which is very dangerous.

[0093] In the related art, in order to improve the safety of the socket, a separate overload protector is added inside the socket, and 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.

[0094] However, a separate overload protector occupies a large space inside the socket and is expensive. In addition, for a single-row wireless socket, it is often necessary to lengthen it separately to place the overload protector, which makes the product appearance inconsistent and unsightly, and increases the cost. Therefore, how to make the socket have an overload protection function without causing the socket to be expensive and bulky is a key technical issue.

[0095] In view of the above technical problems, the embodiment of the present disclosure provides a wiring terminal with an overload protection function, or it can be understood that the wiring terminal is integrated with the overload protector, and a socket integrating the wiring terminal. The wiring terminal is used to realize the wiring of the socket. In this way, not only the socket has an overload protection function, but also the internal space of the socket is saved, so that the socket with the overload protection function is consistent with the size of the existing ordinary socket or has a small change. Moreover, compared with the socket with an independent overload protector, the socket provided by the embodiment of the present disclosure has a lower cost.

[0096] To facilitate understanding of the technical solution provided by the embodiments of the present disclosure, the original functions of the connection terminals are first introduced and explained. Figure 1 An outline view of the socket is shown. Figure 2 The figure shows the internal structure of the socket after the bottom shell is hidden. Figure 1 and Figure 2As shown, the socket includes a socket housing 100, a socket assembly 200 and a terminal block 300, wherein the socket assembly 200 and the terminal block 300 are located inside the housing 100. The terminal block 300 is used to connect cables externally and is electrically connected to the socket assembly 200 internally. Thus, the terminal block 300 can introduce external current into the socket assembly 200.

[0097] Figure 3 and Figure 4 FIG. 3 is a schematic diagram of a wiring terminal 300 provided in an embodiment of the present disclosure. Figure 3 and Figure 4 As shown, the terminal block 300 includes a housing 1 and a plurality of conductive members, which are respectively an L-pole conductive member 2, an N-pole conductive member 3 and an E-pole conductive member 4. The housing 1 includes a plurality of wiring holes, which are respectively 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 member 2, the N-pole conductive member 3 and the E-pole conductive member 4 are respectively extended into the L-pole wiring hole 12, the N-pole wiring hole 13 and the E-pole wiring hole 14, and are respectively used to connect with the L-pole cable, the N-pole cable and the E-pole cable. The other ends of the L-pole conductive member 2, the N-pole conductive member 3 and the E-pole conductive member 4 are respectively used to be electrically connected with the L-pole socket assembly 201, the N-pole socket assembly 202 and the E-pole socket assembly 203.

[0098] In addition, if Figure 3 and Figure 4 As shown, in order to realize the connection between the conductive member and the cable, the terminal block 300 further includes an L-pole crimping assembly 7, an N-pole crimping assembly 8, and an E-pole crimping assembly 9. The L-pole crimping assembly 7, the N-pole crimping assembly 8, and the E-pole crimping assembly 9 are respectively used to crimp the L-pole conductive member 2, the N-pole conductive member 3, and the E-pole conductive member 4 with the cables of corresponding polarities. The embodiment of the present disclosure does not limit the implementation method of the crimping assembly. For example, Figure 3 As shown, by tightening the screws of the L-pole crimping assembly 7, the N-pole crimping assembly 8 and the E-pole crimping assembly 9, the conductive member and the cable can be crimped.

[0099] In order to make the connection terminal 300 have an overload protection function, the embodiment of the present disclosure improves the L-pole conductive member 2 so that the L-pole conductive member 2 can be disconnected when overloaded to cut off the power supply. Figure 5 The schematic diagram shows the connection terminal 300 after hiding the cover plate 6 . Figure 6 An exploded view of the terminal block 300 is shown. Figure 7 A schematic diagram of the L-pole conductive member 2 is shown.

[0100] like Figure 5-Figure 7As shown, the L-pole conductive member 2 includes a first conductive sheet 21, a bimetallic sheet 22, and a second conductive sheet 23 connected in sequence. The bimetallic sheet 22 is fixedly connected to one of the first conductive sheet 21 and the second conductive sheet 23, and is connected to the other through a contact. For example, Figure 7 As shown, the bimetallic strip 22 has a moving contact 220, and the second conductive strip 23 has a stationary contact 230. Under the elastic force of the bimetallic strip 22, the moving contact 220 and the stationary contact 230 abut against each other. The bimetallic strip 22 is composed of two metals with different thermal expansion coefficients. When current passes through, the bimetallic strip 22 will bend and deform due to the heat generated by the current.

[0101] Thus, when the terminal block 300 is overloaded, the bimetallic strip 22 will deform due to the increase in temperature and separate from the first conductive strip 21 or the second conductive strip 23 (for example, the moving contact 220 and the stationary contact 230 are separated), thereby cutting off the power supply and reducing the possibility of danger.

[0102] In order to arrange the first conductive sheet 21, the bimetallic sheet 22 and the second conductive sheet 23 on the housing 1 of the terminal block 300, as shown in FIG. Figure 5 and Figure 6 As shown, the housing 1 further includes a housing cavity 11, which is connected to the L-pole wiring hole 12. One end of the first conductive sheet 21 extends into the L-pole wiring hole 12, and the other end extends into the housing cavity 11 and is connected to one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected to one end of the second conductive sheet 23, and the other end of the second conductive sheet 23 extends out of the housing cavity 11 and is used to connect to the L-pole socket assembly 201.

[0103] It is understandable that, as the number of parts of the L-pole conductive member 2 increases, the volume of the housing 1 increases, and the shape of the housing 1 changes. The shape of the housing 1 is exemplarily described below.

[0104] In some examples, such as Figure 3-Figure 6 As shown, the housing 1 includes an L-pole connection portion 101, an N-pole connection portion 102, an E-pole connection portion 103 and an overload protection portion 104. The L-pole connection portion 101 includes an L-pole connection hole 12. The N-pole connection portion 102 includes an N-pole connection hole 13. The E-pole connection portion 103 includes an E-pole connection hole 14. The overload protection portion 104 includes a receiving cavity 11.

[0105] In some examples, such as Figure 3-Figure 6 As shown, along the first direction X, the L-pole connection portion 101 and the overload protection portion 104 are arranged between the N-pole connection portion 102 and the E-pole connection portion 103. Of course, in other examples, the L-pole connection portion 101 and the overload protection portion 104 can also be located at one of the housing 1 instead of the middle position.

[0106] In some examples, such as Figure 3-Figure 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. Figure 4 As shown, the second direction Y is perpendicular to the first direction X. The direction of the wire inlets of the L-pole wiring hole 12, the N-pole wiring hole 13 and the E-pole wiring hole 14 is the front, and the rear is opposite to the front.

[0107] In some examples, such as Figure 2 As shown, the connection terminal 300 is installed in the socket in the posture shown in the figure, then the first direction X is parallel to the width direction of the socket, and the second direction Y is parallel to the length direction of the socket. Of course, in other examples, the connection terminal 300 can also be installed in the socket in other postures, and the embodiment of the present disclosure is not limited to this.

[0108] In some examples, such as Figure 4 As shown in FIG. 1 , along the second direction Y, the L-pole connection portion 101 protrudes forward relative to the N-pole connection portion 102 and the E-pole connection portion 103. Figure 4 As shown, the L-pole crimping assembly 7 protrudes forward relative to the N-pole crimping assembly 8 and the E-pole crimping assembly 9. Alternatively, the position of the L-pole wiring hole 12 protrudes forward relative to the position of the N-pole wiring hole 13 and the position of the E-pole wiring hole 14. In this way, the influence on the length of the socket housing 100 can be reduced, which is conducive to the application of the wiring terminal 300 provided by the embodiment of the present disclosure without increasing the length of the socket housing 100. The specific reasons are as follows.

[0109] Among them, Figure 2 As shown, the socket housing 100 includes a cable opening 1001 for inserting cables. After the cables are inserted, they are divided into L-pole cables, N-pole cables and E-pole cables, and are inserted into the L-pole wiring hole 12, the N-pole wiring hole 13 and the E-pole wiring hole 14 respectively. In order to facilitate the stripping, routing and crimping of the cables of each pole, each wiring portion needs to have a certain distance from the cable opening 1001.

[0110] In the related art, the L-pole connection part 101, the N-pole connection part 102 and the E-pole connection part 103 are flush, and the distances of each pole connection part from the cable port 1001 along the length direction X are the same (for example, all are D). Assuming that in the terminal block 300 provided in the embodiment of the present disclosure, the L-pole connection part 101, the N-pole connection part 102 and the E-pole connection part 103 are also flush, then the distances of the L-pole connection part 101, the N-pole connection part 102 and the E-pole connection part 103 from the cable port 1001 still need to be D. However, since the overload protection part 104 is added to the rear of the L-pole connection part 101, the overload protection part 104 protrudes backward relative to the N-pole connection part 102 and the E-pole connection part 103. In order to accommodate the protruding overload protection part 104, the length of the socket housing 100 needs to be increased.

[0111] The technical solution provided by the embodiment of the present disclosure sets the L-pole connection part 101 to protrude forward relative to the N-pole connection part 102 and the E-pole connection part 103. Then, the distance between the N-pole connection part 102 and the E-pole connection part 103 and the cable port 1001 can still be set to D, while the distance between the L-pole connection part 101 and the cable port 1001 is set to d, where d is less than D. In this way, only the distance between the L-pole connection part 101 and the cable port 1001 becomes smaller, which will only have some impact on the stripping, routing and crimping of the L-pole cable, but will not have any impact on the N-pole cable and the E-pole cable. Moreover, through actual measurement, the actual wiring experience of the embodiment of the present disclosure is not much different from the wiring experience of the existing ordinary socket.

[0112] Since the L-pole connection part 101 protrudes forward relative to the N-pole connection part 102 and the E-pole connection part 103, the length of the overload protection part 104 protruding backward relative to the N-pole connection part 102 and the E-pole connection part 103 is reduced (or even does not protrude), and the smaller the protruding length, the easier it is to arrange the newly added overload protection part 104 inside the socket housing 100. Therefore, it is beneficial to apply the connection terminal 300 provided by the embodiment of the present disclosure without increasing the length of the socket housing 100.

[0113] It is understandable that if in the terminal block 300 provided in the embodiment of the present disclosure, the L-pole terminal block 101, the N-pole terminal block 102 and the E-pole terminal block 103 are flush, and the distance between each terminal block and the cable port 1001 is d, it will affect the stripping, routing and crimping of the cables of each pole, affecting the wiring experience.

[0114] Of course, in other examples, in the connection terminal 300 provided in the embodiment of the present disclosure, along the second direction Y, the L-pole connection part 101, the N-pole connection part 102 and the E-pole connection part 103 may also be flush, and the embodiment of the present disclosure does not specifically limit this.

[0115] In some examples, such as Figure 4As shown, along the second direction Y, the overload protection part 104 protrudes backward relative to the N-pole wiring part 102 and the E-pole wiring part 103. In this way, the size of the overload protection part 104 along the second direction Y is relatively large, which is conducive to the arrangement of the newly added overload protection device. In addition, 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, it is conducive to reducing 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, avoiding the L-pole wiring part 101 and the cable port 1001 of the socket housing 100 The distance is too small, which makes it difficult to connect the L-pole cable.

[0116] The embodiment of the present disclosure does not limit the position where the second conductive sheet 23 extends from the accommodating cavity 11. Figure 4-Figure 6 As shown, the N-pole conductive member 3 extends from the rear of the N-pole connection portion 102, and the E-pole conductive member 4 extends from the rear of the E-pole connection portion 103. In some examples, the second conductive sheet 23 of the L-pole conductive member 2 also extends from the rear of the accommodating cavity 11 (or the rear of the overload protection portion 104), that is, from Figure 5 The opening of the middle accommodating chamber 11 extends directly out.

[0117] Since the overload protection portion 104 protrudes backward relative to the N-pole connection portion 102 and the E-pole connection portion 103, if the second conductive sheet 23 is Figure 5 If the opening of the middle accommodating cavity 11 extends directly, the inner connecting section of the second conductive sheet 23 will be located behind the inner connecting section of the N-pole conductive member 3 and the inner connecting section of the E-pole conductive member 4. The inner connecting section refers to a section of the conductive member used to connect the socket assembly 200.

[0118] However, generally speaking, in the related art, the inner connecting section of the L-pole conductive member 2, the inner connecting section of the N-pole conductive member 3, and the inner connecting section of the E-pole conductive member 4 are all flush. Therefore, the above configuration requires adaptive adjustment of the socket assembly 200.

[0119] In some examples, in order to make the inner section of the L-pole conductive member 2, the inner section of the N-pole conductive member 3, and the inner section of the E-pole conductive member 4 flush (such as Figure 3 and Figure 4 The case marked by the dotted line I), such as Figure 4 and Figure 5 As shown, the second conductive sheet 23 is arranged to pass through the first side wall 111 of the accommodating cavity 11. Figure 5As shown, the overload protection part 104 includes a plurality of side walls, and the plurality of side walls may 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 arranged opposite to each other, and the first side wall 111 is used to be opposite to the bottom of the socket. The third side wall 113 and the fourth side wall 114 are arranged opposite to each other. One end of the plurality of side walls is connected to the N-pole wiring part 102, and the other end extends toward the rear, and the plurality of side walls and the N-pole wiring part 102 are enclosed to form a receiving cavity 11. In this way, it is convenient to realize that the inner connecting section of the L-pole conductive part 2, the inner connecting section of the N-pole conductive part 3, and the inner connecting section of the E-pole conductive part 4 are flush.

[0120] Figure 8 A schematic diagram of a terminal block 300 is shown. In some examples, Figure 8 As shown, along the third direction Z, the second side wall 112 of the overload protection portion 104 protrudes relative to the L-pole connection portion 101, the N-pole connection portion 102, and the E-pole connection portion 103. The third direction Z is perpendicular to the first direction X and the second direction Y. The second side wall 112 is arranged opposite to the first side wall 111. In this way, the internal space of the accommodating cavity 11 is increased.

[0121] In some examples, such as Figure 2 As shown, when the connection terminal 300 is installed in the socket housing 100 in the posture shown in the figure, the third direction Z is parallel to the thickness direction of the socket.

[0122] In some examples, the bimetal strip 22 extends along the third direction Z. Wherein, the L-pole connection portion 101 and the overload protection portion 104 are arranged along the second direction Y, which makes the total length occupied by the L-pole connection portion 101 and the overload protection portion 104 larger. In addition, in order to avoid affecting the N-pole connection portion 102 and the E-pole connection portion 103, the size of the overload protection portion 104 along the first direction X is limited. Therefore, setting the bimetal strip 22 to extend along the third direction Z can make the bimetal strip 22 have a sufficient length.

[0123] When the terminal block 300 is overloaded, the bimetallic strip 22 will be disconnected from the target conductive strip. The target conductive strip is a conductive strip of the first conductive strip 21 and the second conductive strip 23 that is connected to the bimetallic strip 22 through a contact point. For example, Figure 7 In order to enable the user to continue to use the socket after the overload condition is eliminated, the terminal block 300 provided in the embodiment of the present disclosure further includes a reset component 5, which is configured to reconnect the bimetallic strip 22 with the target conductive strip when the bimetallic strip 22 is disconnected from the target conductive strip under the triggering of the user.

[0124] It is understandable that a portion of the reset component 5 may be exposed on the outer surface of the socket housing 100 of the socket, so that the user can operate (eg, press) the reset component 5. Figure 1 As shown, a portion of the reset assembly 5 is exposed on the socket surface 1000 of the socket housing 100 .

[0125] The implementation of the reset component 5 is described below by way of example. Fig. 9 A schematic diagram of the reset component 5 and the L-pole conductive member 2 is shown.

[0126] In some examples, such as Fig. 9 and Figure 5 As shown, the reset assembly 5 includes a reset rod 51 and an elastic member 52. A portion of the reset rod 51 is located inside the accommodating chamber 11, and another portion is located outside the accommodating chamber 11. The elastic member 52 is located inside the accommodating chamber 11 and abuts against the reset rod 51. The elastic member 52 is in a compressed state.

[0127] like Fig.10 As shown, when the terminal block 300 changes from a normal state to an overload state, the bimetallic strip 22 is deformed due to the increase in temperature and is separated from the target conductive strip (such as the second conductive strip 23) to cut off the power supply. After the bimetallic strip 22 is separated from the second conductive strip 23, the reset rod 51 is inserted between the contact points of the bimetallic strip 22 and the second conductive strip 23 under the drive of the elastic member 52, thereby preventing the bimetallic strip 22 from rebounding to contact the second conductive strip 23 again due to the decrease in temperature when the overload condition has not been eliminated. That is, the reset component 5 is also used to prevent the bimetallic strip 22 from automatically contacting the second conductive strip 23 again after the bimetallic strip 22 is separated from the second conductive strip 23.

[0128] like Fig.11 As shown, when the overload condition is eliminated, the user presses the reset rod 51, the reset rod 51 compresses the elastic member 52, and is pulled away from the contact point between the bimetallic strip 22 and the second conductive strip 23, and the bimetallic strip 22 loses the obstruction of the reset rod 51. Since the temperature of the bimetallic strip 22 has dropped, the bimetallic strip 22 automatically rebounds and contacts the second conductive strip 23 again, the L-pole conductive member 2 is turned on, and the terminal block 300 is restored from the overload state to the normal state. The user can use the socket normally.

[0129] The following is an exemplary description of the form of the reset rod 51. In some examples, such as Figure 9-11As shown, the reset rod 51 includes a rod body 511 and a spacer 512. A portion of the rod body 511 is located inside the accommodating cavity 11 and abuts against the elastic member 52, and the other portion is located outside the accommodating cavity 11. The spacer 512 is connected to one side of the rod body 511. The spacer 512 is used to be inserted between the contact point of the bimetallic strip 22 and the target conductive strip. In some examples, the thickness of the spacer 512 is less than the width of the rod body 511, thereby facilitating the spacer 512 to be incorporated between the contact point of the bimetallic strip 22 and the target conductive strip.

[0130] In some examples, such as Fig.10 and Fig.11 As shown, the sliding direction of the reset rod 51 is the same as the extension direction of the bimetallic strip 22. The rod body 511 is located on one side of the bimetallic strip 22 and the target conductive strip to avoid interference between the bimetallic strip 22 and the target conductive strip. The rib 512 is located between the bimetallic strip 22 and the target conductive strip, and can be inserted between the contact points of the bimetallic strip 22 and the target conductive strip, or pulled out from the contact points of the bimetallic strip 22 and the target conductive strip under the drive of the rod body 511, so as to complete the switching between the overload state and the normal state.

[0131] In some examples, such as Figure 5 As shown, the rod 511 is located on the side of the bimetallic strip 22 close to the L-pole wiring hole 12. In this way, in the second direction Y, the rod 511 and the elastic member 52 will not occupy too much space in the accommodating cavity 11, so that the overall volume of the wiring terminal 300 is small. In addition, since the rod 511 and the elastic member 52 are close to the bottom of the accommodating cavity 11, it is also convenient to set a corresponding installation structure in the accommodating cavity 11 for installing the reset assembly 5.

[0132] Next, the form of the bimetallic strip 22 will be described. Fig.12 1 shows a side view of the L-pole conductive member 2 and the reset assembly 5. In some examples, such as Fig.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 a target conductive sheet (such as the second conductive sheet 23), and the first bending section 222 is bent relative to the first connecting section 223 in a direction away from the target conductive sheet. When the terminal block 300 is in a normal state, the rib 512 is arranged between the main body section 221 and the target conductive sheet, and abuts against the first bending section 222. Fig.12 and Fig. 9 As shown, the middle part of the main body section 221 is circularly concave, and the surrounding parts are straightly transitioned.

[0133] Among them, the design of the first bending section 222, on the one hand, increases the distance between the main section 221 and the target conductive sheet, so that there is enough space between the main section 221 and the target conductive sheet to accommodate the partition 512. On the other hand, when the first bending section 222 abuts against the partition 512, the first bending section 222 can stop the partition 512 to prevent the partition 512 from directly separating the contact point between the bimetallic strip 22 and the target conductive sheet under the drive of the elastic member 52. When the terminal block 300 is in an overload state, the bimetallic strip 22 is deformed so that the first connecting section 223 is separated from the target conductive sheet. At this time, the partition 512 is no longer stopped by the first bending section 222. Then, under the drive of the elastic member 52, the partition 512 extends between the contact point between the first connecting section 223 and the target conductive sheet.

[0134] In some examples, one end of the main body segment 221 away from the first bending segment 222 is connected to a non-target conductive sheet among the first conductive sheet 21 and the second conductive sheet 23 .

[0135] In other examples, such as Fig.12 As shown, the bimetallic strip 22 also includes a second connecting segment 224 and a second bending segment 225 connected in sequence, and the second bending segment 225 is connected to the main segment 221. The second connecting segment 224 is used to connect to the non-target conductive sheet in the first conductive sheet 21 and the second conductive sheet 23, and the second bending segment 225 is bent relative to the second connecting segment 224 in a direction away from the non-target conductive sheet. In this way, a larger gap can be provided between the main segment 221 and the target conductive sheet, which is conducive to accommodating the partition 512. In some examples, the second connecting segment 224 is used to weld with the non-target conductive sheet (such as the first conductive sheet 21).

[0136] In some examples, such as Fig.12 As shown, the second conductive sheet 23 includes 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 the first side wall 111 and is used to connect with the socket assembly 200. The sixth L-pole conductive segment 233 includes a static contact 230, which is used to contact the moving contact 220 of the bimetallic strip 22. The fifth L-pole conductive segment 232 is bent relative to the sixth L-pole conductive segment 233 in a direction away from the bimetallic strip 22 to increase the distance between the sixth L-pole conductive segment 233 and the fifth L-pole conductive segment 232.

[0137] The embodiment of the present disclosure does not specifically limit which side wall of the accommodating cavity 11 the reset rod 51 passes through. The side wall of the accommodating cavity 11 through which the reset rod 51 passes determines the outer surface of the socket housing 100 on which the reset rod 51 is exposed. The reset rod 51 provided in the embodiment of the present disclosure can pass through any side wall of the accommodating cavity 11, that is, the reset rod 51 provided in the embodiment of the present disclosure can be exposed on any outer surface of the socket housing 100.

[0138] In some examples, such as Figure 1 As shown, the reset rod 51 is exposed on the socket surface 1000 of the socket housing 100. The socket surface 1000 is the side where the socket is located, and can also be understood as the front side of the socket. By setting the reset rod 51 to be exposed on the socket surface 1000, the reset rod 51 is more eye-catching, which is convenient for reminding the user to operate the reset rod 51. In addition, the reset rod 51 will not hinder the normal placement of the socket.

[0139] Correspondingly, such as Figure 8 As shown, the reset rod 51 needs to pass through the second side wall 112 of the accommodating cavity 11, wherein the second side wall 112 is arranged opposite to the first side wall 111. The first side wall 111 is the side wall through which the second conductive sheet 23 passes. The second side wall 112 is closest to the socket surface 1000 of the socket housing 100, which is conducive to realizing that the reset rod 51 is exposed on the socket surface 1000.

[0140] In some examples, such as Figure 5 As shown, one end of the bimetallic strip 22 is close to the first side wall 111, and the other end is close to the second side wall 112. Then, the end of the bimetallic strip 22 close to the second side wall 112 is connected to the target conductive strip through a contact. That is, the end of the bimetallic strip 22 close to the second side wall 112 has a moving contact 220. In this way, the length of the reset rod 51 can be reduced, and the possibility of interference between the reset rod 51 and other devices in the accommodating cavity 11 can be reduced.

[0141] In some examples, such as Figure 5 As shown, the second conductive sheet 23 is a target conductive sheet, and the second conductive sheet 23 is connected to an end of the bimetallic sheet 22 close to the second side wall 112 through a contact, that is, the second conductive sheet 23 includes a static contact 230. Correspondingly, the first conductive sheet 21 is fixedly connected to an end of the bimetallic sheet 22 close to the first side wall 111 (e.g., welded).

[0142] Next, the assembly method of the reset assembly 5 in the accommodating cavity 11 is described.

[0143] In some examples, such as Fig.13As shown, the bottom of the accommodating chamber 11 includes a spring installation groove 115, and the second side wall 112 of the accommodating chamber 11 includes a reset rod through hole 1121, and the reset rod through hole 1121 is connected to the spring installation groove 115. The spring installation groove 115 is used to accommodate the elastic member 52 (spring) and to accommodate a part of the reset rod 51. The reset rod through hole 1121 is used for the reset rod 51 to pass through.

[0144] When installing the reset assembly 5, first move the reset rod 51 into the accommodating chamber 11. Then, operate the reset rod 51 so that the rod body 511 of the reset rod 51 passes through the reset rod through hole 1121. Then, install the elastic member 52 so that the elastic member 52 surrounds the reset rod 51 and is located in the spring installation groove 115. Under the elastic action of the elastic member 52, the reset rod 51 extends outward, but due to the presence of the partition rib 512, the reset rod 51 cannot be completely extended to the outside of the accommodating chamber 11. Among them, the spring installation groove 115 can also be replaced by a spring installation column and extend into the interior of the elastic member 52.

[0145] Next, the assembly method of the first conductive sheet 21 and the bimetallic sheet 22 in the accommodating cavity 11 is described.

[0146] In some examples, such as Fig.14 As shown, a positioning pin 116 is disposed at the bottom of the accommodating cavity 11 , and the positioning pin 116 extends along the second direction Y. The first conductive sheet 21 includes a positioning hole 2120 , and the positioning pin 116 extends into the positioning hole 2120 .

[0147] In some examples, such as Fig.14 As shown, a partition 117 is provided inside the accommodating cavity 11. Along the first direction X, the partition 117 is arranged between the third side wall 113 and the fourth side wall 114 of the accommodating cavity 11, and is close to the third side wall 113. The first conductive sheet 21 includes a first L-pole conductive segment 211, a second L-pole conductive segment 212 and a third L-pole conductive segment 213 connected in sequence. Among them, the first L-pole conductive segment 211 is used to be inserted into the L-pole wiring hole 12. The second L-pole conductive segment 212 is arranged opposite to the cavity bottom of the accommodating cavity 11, and the second L-pole conductive segment 212 is provided with a positioning hole 2120 corresponding to the positioning pin 116. The third L-pole conductive segment 213 is parallel to the second direction Y and the third direction Z, and is connected to a side of the partition 117 facing the fourth side wall 114.

[0148] In some examples, the side of the partition 117 facing the fourth side wall 114 includes a first retaining rib 1171, and a limiting groove is defined between the first retaining rib 1171 and the first side wall 111. The third L-pole conductive segment 213 extends into the limiting groove between the first retaining rib 1171 and the first side wall 111.

[0149] When installing the first conductive sheet 21 and the bimetallic sheet 22, it is necessary to first assemble (such as weld) the first conductive sheet 21 and the bimetallic sheet 22, and then Fig.14 The whole is inserted into the accommodating cavity 11 in the direction of the arrow shown. During the insertion process, the positioning pin 116 and the positioning hole 2120 can be used for auxiliary positioning.

[0150] Next, the assembly method of the second conductive sheet 23 in the accommodating cavity 11 is described.

[0151] In some examples, such as Fig.15 As shown, a second conductive sheet through hole 1111 is provided on the first side wall 111 of the accommodating cavity 11, and the second conductive sheet through hole 1111 is used for the second conductive sheet 23 to pass through, and the second conductive sheet through hole 1111 is provided with an opening at the rear, so that the second conductive sheet 23 can be inserted along the second direction Y.

[0152] In some examples, such as Fig.15 As shown, a limiting groove is defined between the partition 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.

[0153] In some examples, such as Fig.15 As shown, the side of the third side wall 113 facing the partition plate 117 includes a second retaining rib 1131 , and a limiting groove is formed between the second retaining rib 1131 and the partition plate 117 .

[0154] In some examples, such as Fig.15 As shown, the interior of the accommodating cavity 11 includes two third retaining ribs 118, the third retaining ribs 118 extend along the second direction Y, and a limiting groove is defined between the two third retaining ribs 118. Fig.15 As shown, one end of the second conductive sheet 23 is bent to form a hook portion 2311 , and the hook portion 2311 is used to be inserted into the limiting groove between the two third blocking ribs 118 along the second direction Y.

[0155] When installing the second conductive sheet 23, Fig.15 The second conductive sheet 23 is inserted in the direction indicated by the middle arrow, and then the second conductive sheet 23 extends between the two third blocking ribs 118, between the partition 117 and the second blocking rib 1131, and into the second conductive sheet through hole 1111. The hook portion 2311 extends into the limit groove between the two third blocking ribs 118.

[0156] Next, the assembly method of the N-pole conductive member 3 and the E-pole conductive member 4 in the housing 1 is exemplarily described.

[0157] In some examples, such as Fig.16As shown, the N-pole conductive member 3 includes a first N-pole conductive segment 31, a second N-pole conductive segment 32 and a third N-pole conductive segment 33 connected in sequence, and the three conductive segments are bent. The first N-pole conductive segment 31 extends along the second direction Y and extends into the N-pole wiring hole 13. The second N-pole conductive segment 32 is located outside the housing 1 and extends along the third direction Z. The third N-pole conductive segment 33 extends along the second direction Y.

[0158] The outer wall of the housing 1 has two opposite first clamping positions 1021, which are arranged along the first direction X and are arranged on both sides of the N-pole wiring hole 13. Correspondingly, along the first direction X, the two side walls of the second N-pole conductive segment 32 respectively have first protrusions 321. The two first protrusions 321 extend into the two first clamping positions 1021 respectively, thereby limiting the second N-pole conductive segment 32. Among them, one first clamping position 1021 can be located on the side wall of the accommodating cavity 11.

[0159] The side wall of the housing 1 also has a second locking position 1022. In the third direction Z, the third N-pole conductive segment 33 has a second protrusion 331, and the second protrusion 331 is located at the second locking position 1022, so as to limit the third N-pole conductive segment 33.

[0160] In some examples, such as Fig.16 As 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 wiring hole 14. The shape of the E-pole conductive member 4 is substantially the same as that of the N-pole conductive member 3, and will not be repeated here.

[0161] Correspondingly, in order to limit the position of the E-pole conductive member 4, the side wall of the housing 1 has two opposite third clamping positions 1031, and the two third clamping positions 1031 are arranged along the first direction X and arranged on both sides of the E-pole wiring hole 14. Along the first direction X, the two side walls of the second E-pole conductive segment 42 respectively have third protrusions 421. The two third protrusions 421 extend into the third clamping positions 1031 respectively, so as to limit the position of the second E-pole conductive segment 42. Among them, one third clamping position 1031 can be located on the side wall of the accommodating cavity 11.

[0162] In addition, the outer wall of the housing 1 also has a fourth position 1032. In the third direction Z, the third E-pole conductive segment 43 has a fourth protrusion 431, and the fourth protrusion 431 is located at the fourth position 1032, so as to limit the third E-pole conductive segment 43.

[0163] In some examples, such as Fig.17As shown, the connection terminal 300 provided in 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. The connection method between the cover plate 6 and the housing 1 is exemplarily described below.

[0164] In some examples, the cover plate 6 is snap-fitted to the housing 1 .

[0165] In some examples, such as Fig.17 and Fig.18 As shown, the cover plate 6 includes a plate body 61 and two buckles 62, and the two buckles 62 are located on the side of the plate body 61 facing the bottom 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.

[0166] In some examples, such as Fig.17 As shown, the two buckles 16 are opposite to each other, and the two buckle holes 110 are also opposite to each other.

[0167] In some examples, such as Fig.17 As shown, the two latch holes 110 are respectively arranged on the first side wall 111 and the second side wall 112 of the accommodating cavity 11 .

[0168] In order to make the connection between the cover plate 6 and the housing 1 more stable and facilitate the positioning of the cover plate 6, in some examples, such as Fig.17 As shown, the cover plate 6 further includes a positioning post 63, which is located on the side of the plate body 61 facing the bottom of the accommodating cavity 11. The accommodating cavity 11 includes a receiving groove 119 inside, which is used to receive the positioning post 63.

[0169] In some examples, such as Fig.17 As shown, the receiving groove 119 is connected to the fourth side wall 114 .

[0170] In some examples, the positioning column 63 is tightly matched with the receiving groove 119 (eg, interference fit), thereby making the connection between the cover plate 6 and the housing 1 more stable.

[0171] In some examples, such as Fig.17 and Fig.18 As shown, the cover plate 6 includes a limiting rib 64, which is located on the side of the plate body 61 facing the bottom of the accommodating cavity 11 and extends 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.

[0172] In some examples, the limiting rib 64 is opposite to the connection between the bimetallic strip 22 and the first conductive strip 21 , is located on the side of the bimetallic strip 22 facing away from the first conductive strip 21 , and contacts the bimetallic strip 22 to limit the bimetallic strip 22 .

[0173] In the following, in combination with the above contents, the assembly sequence of the L-pole conductive member 2 and the reset assembly 5 is exemplarily described.

[0174] For the first step, please refer to Fig.13 , install the reset assembly 5 on the housing 1. Step 2, please refer to Fig.14 , insert the first conductive sheet 21 and the bimetallic sheet 22 as a whole into the accommodating cavity 11 in the direction of the arrow shown in the figure. Fig.15 , insert the second conductive sheet 23 into the accommodating cavity 11 in the direction of the arrow shown in the figure, and operate the reset rod 51 so that the rib 512 of the reset rod 51 abuts against the first bending section 222 of the bimetallic sheet 22. Fig.17 , a cover plate 6 is used to close the opening of the accommodating chamber 11 .

[0175] Among them, the assembly of the N-pole conductive member 3 and the E-pole conductive member 4 is relatively independent compared to the assembly of the L-pole conductive member 2 and the reset assembly 5. Therefore, the N-pole conductive member 3 and the E-pole conductive member 4 can be assembled before, after, or during the assembly of the L-pole conductive member 2 and the reset assembly 5. Similarly, in the embodiment of the present disclosure, the L-pole wire pressing assembly 7, the N-pole wire pressing assembly 8, and the E-pole wire pressing assembly 9 can be assembled last.

[0176] 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 parts constitute an overload protection mechanism or an overload protector, which is integrated in the wiring terminal 300, so that the wiring terminal 300 has an overload protection function. In other examples, the listed overload protector can also be used alone, that is, it is not integrated with the wiring terminal 300, and the overload protector can be separately set inside the socket.

[0177] Accordingly, the embodiment of the present disclosure also provides an overload protector. Figure 5-Figure 6 and Figure 9-12 The overload protector comprises a housing 1, a first conductive sheet 21, a bimetallic strip 22, a second conductive sheet 23, a reset rod 51 and an elastic member 52. The housing 1 may be a housing independent of the terminal 300. The housing 1 comprises a receiving cavity 11, and the bimetallic strip 22 is located in the receiving cavity 11.

[0178] One end of the first conductive sheet 21 is located outside the accommodating cavity 11 for wiring, and the other end extends into the accommodating cavity 11 and is fixedly connected to one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected to one end of the second conductive sheet 23 through a contact. The other end of the second conductive sheet 23 extends out of the accommodating cavity 11 for wiring.

[0179] like Figure 9-12As shown, the bimetallic strip 22 and the second conductive strip 23 are arranged in parallel and both extend along the third direction Z. The reset rod 51 includes a rod body 511 and a spacer 512. The rod body 511 is slidably connected to the housing 1 along the third direction Z and abuts against the elastic member 52. The spacer 512 is connected to one side of the rod body 511 and is arranged between the bimetallic strip 22 and the second conductive strip 23.

[0180] like Fig.10 As shown, when the overload protector changes from the normal state to the overload state, the bimetallic strip 22 is disconnected from the second conductive strip 23. The elastic member 52 drives the partition 512 to be inserted between the contact points of the bimetallic strip 22 and the second conductive strip 23. When the reset rod 51 is pressed, the partition 512 is pulled away from the contact points of the bimetallic strip 22 and the second conductive strip 23, and the bimetallic strip 22 is reconnected with the second conductive strip 23.

[0181] It should be noted that the specific structure and installation method 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 be referred to the above content and will not be repeated here. The difference between the overload protector provided in the embodiment of the present disclosure and the aforementioned terminal block 300 is that the overload protector does not include the above-mentioned 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 the various devices assembled on the overload protection part 104 can be understood as an overload protector.

[0182] In addition to the aforementioned overload protector, the embodiment of the present disclosure also provides an overload protector of another implementation mode, which can be integrated into the wiring terminal 300 or used separately.

[0183] Next, a connection terminal 300 integrated with another overload protector is exemplarily described.

[0184] Fig.19 FIG. 2 shows an appearance diagram of another connection terminal 300 . Fig. 20 shows a schematic diagram of the connection terminal 300 in a normal state, Fig.21 shows a schematic diagram of a terminal block 300 in an overload state, Fig. 22 A schematic diagram showing the overload state 300 switching from the overload state to the normal state.

[0185] like Figure 20-22As shown, the terminal block 300 includes a housing 1, a first conductive sheet 21, a bimetallic sheet 22, and a second conductive sheet 23. The housing 1 includes an L-pole wiring hole 12 and a receiving cavity 11. One end of the first conductive sheet 21 extends into the L-pole wiring hole 12, and the other end extends into the receiving cavity 11 and is connected to one end of the bimetallic sheet 22. The other end of the bimetallic sheet 22 is connected to one end of the second conductive sheet 23, and the other end of the second conductive sheet 23 extends out of the receiving cavity 11 and is used to connect to the L-pole socket assembly 201. The bimetallic sheet 22 includes a moving contact 220, and the second conductive sheet 23 includes a static contact 230.

[0186] like Fig. 20 As shown, in a normal state, the moving contact 220 and the stationary contact 230 are in contact. Fig.21 As shown, under the overload state, the bimetallic strip 22 is deformed by heat, so that the moving contact 220 and the stationary contact 230 are separated.

[0187] In order to avoid the situation where the overload condition is not eliminated, the bimetallic strip 22 automatically rebounds after the temperature drops, so that the moving contact 220 and the stationary contact 230 are in contact again. Figure 20-22 As shown, the terminal block 300 also includes a pressure assembly 10, which is connected to the bimetallic strip 22. The pressure assembly 10 is configured to provide a force that causes the moving contact 220 to approach the static contact 230 when the moving contact 220 contacts the static contact 230, and to keep the moving contact 220 in a current position after the moving contact 220 is separated from the static contact 230, so as to prevent the bimetallic strip 22 from automatically rebounding and reconnecting with the second conductive strip 23.

[0188] In some examples, such as Figure 20-22 As shown, the pressure assembly 10 includes a screw 10a and a spring 10b. The screw 10a is connected to the housing 1 , and one end of the spring 10b is connected to the screw 10a and the other end is connected to the bimetallic strip 22 .

[0189] After the spring sheet 10b is assembled, it is always in an elastic deformation state, that is, the spring sheet 10b always applies elastic force to the bimetallic strip 22. When the moving contact 220 contacts the static contact 230, at least a part of the elastic force provided by the spring sheet 10b is directed toward the static contact 230, so that the moving contact 220 and the static contact 230 are in close contact. When the moving contact 220 and the static contact 230 are separated, at least a part of the elastic force provided by the spring sheet 10b is directed away from the static contact 230, so that the moving contact 220 and the static contact 230 are kept in a separated state. By rotating the screw 10a, the elastic force applied by the spring sheet 10b to the bimetallic strip 22 can be adjusted.

[0190] To allow the user to continue to use the socket after the overload condition is eliminated. Figure 20-22As shown, the terminal block 300 further includes a reset component 5. Figure 20-22 As shown, the reset assembly 5 includes a reset rod 51 and an elastic member 52 .

[0191] The reset rod 51 is mounted on the housing 1 and can move relative to the housing 1. The bimetallic strip 22 and / or the movable contact 220 are located on the moving path of the reset rod 51. Fig.21 As shown, when the user presses the reset rod 51 and applies a pressing force Fn, the reset rod 51 can move toward the direction close to the bimetallic strip 22 and / or the moving contact 220 under the action of the pressing force Fn until it contacts the bimetallic strip 22 and / or the moving contact 220, and continues to push the bimetallic strip 22 and the moving contact 220 to move until the bimetallic strip 22 can break the balance and can drive the moving contact 220 to contact the static contact 230 based on its own deformation force.

[0192] The elastic member 52 is used to drive the reset rod 51 back to its initial position when it is not pressed after the reset rod 51 is pressed. Exemplarily, the elastic member 52 is 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 rod 51 close to the moving contact 220. Fig. 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 its initial position when it is not pressed under the elastic force of the spring.

[0193] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A terminal block, characterized in that: The wiring terminal (300) is applied to a socket, and comprises a housing (1) and a plurality of conductive members, wherein the housing (1) comprises a plurality of wiring holes, and the plurality of wiring holes are respectively used to realize connection between the plurality of conductive members and corresponding cables; The housing (1) further comprises a receiving cavity (11), wherein the receiving cavity (11) is in communication with an L-pole wiring hole (12) among the plurality of wiring holes; The L-pole conductive member (2) among the plurality of conductive members comprises a first conductive sheet (21), a bimetallic sheet (22) and a second conductive sheet (23); One end of the first conductive sheet (21) extends into the L-pole wiring hole (12), and the other end extends into the accommodating cavity (11) and is connected to one end of the bimetallic sheet (22). The other end of the bimetallic sheet (22) is connected to 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 to the L-pole socket assembly (201). Wherein, the bimetallic strip (22) is connected to the first conductive strip (21) or the second conductive strip (23) via a contact point.

2. The connection terminal according to claim 1, characterized in that: The housing (1) comprises an L-pole connection portion (101), an N-pole connection portion (102), an E-pole connection portion (103) and an overload protection portion (104); The L-pole connection portion (101) includes the L-pole connection hole (12), the N-pole connection portion (102) includes the N-pole connection hole (13), the E-pole connection portion (103) includes the E-pole connection hole (14), and the overload protection portion (104) includes the accommodating cavity (11); Along a first direction (X), the L-pole connection portion (101) and the overload protection portion (104) are arranged between the N-pole connection portion (102) and the E-pole connection portion (103); The L-pole connection portion (101) and the overload protection portion (104) are arranged along a second direction (Y), and the overload protection portion (104) is located behind the L-pole connection portion (101), wherein the second direction (Y) is perpendicular to the first direction (X), the direction of the wire inlets of the L-pole connection hole (12), the N-pole connection hole (13) and the E-pole connection hole (14) is forward, and the rear is opposite to the front.

3. The connection terminal according to claim 2, characterized in that: Along the second direction (Y), the L-pole connecting portion (101) protrudes forward relative to the N-pole connecting portion (102) and the E-pole connecting portion (103).

4. The connecting terminal according to claim 2 or 3, characterized in that: Along the second direction (Y), the overload protection portion (104) protrudes rearward relative to the N-pole connecting portion (102) and the E-pole connecting portion (103).

5. The connection terminal according to claim 4, characterized in that: The overload protection portion (104) comprises a plurality of side walls, one end of each of the plurality of side walls is connected to the N-pole wiring portion (102), and the other end of each of the plurality of side walls extends toward the rear, and the plurality of side walls enclose the accommodating cavity (11); The second conductive sheet (23) passes through a first side wall (111) among the plurality of side walls, wherein the first side wall (111) is used to be opposite to the bottom of the socket.

6. The connection terminal according to claim 5, characterized in that: The plurality of conductive parts further include an N-pole conductive part (3) and an E-pole conductive part (4); The inner connecting section of the second conductive sheet (23), the inner connecting section of the N-pole conductive member (3) and the inner connecting section of the E-pole conductive member (4) are flush with each other, wherein the inner connecting section is used to connect to the socket assembly (200).

7. The connection terminal according to claim 5, characterized in that: Along the third direction (Z), the second side wall (112) of the overload protection portion (104) protrudes relative to the L-pole connection portion (101), the N-pole connection portion (102) and the E-pole connection portion (103); Wherein, the third direction (Z) is perpendicular to the first direction (X) and the second direction (Y), and the second side wall (112) is arranged opposite to the first side wall (111).

8. The connection terminal according to claim 7, characterized in that: The bimetallic strip (22) extends along the third direction (Z).

9. The connection terminal according to claim 1, characterized in that: The connection terminal (300) further comprises a reset component (5); The reset component (5) is configured to, when the bimetallic strip (22) is disconnected from the target conductive strip, reconnect the bimetallic strip (22) to the target conductive strip under the triggering of a user; The target conductive sheet is a conductive sheet, among the first conductive sheet (21) and the second conductive sheet (23), which is connected to the bimetallic sheet (22) via a contact.

10. The connection terminal according to claim 9, characterized in that: The reset assembly (5) comprises a reset rod (51) and an elastic member (52); A portion of the reset rod (51) is located inside the accommodating cavity (11), and another portion 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); When the connection terminal (300) changes from a normal state to an overload state, the bimetallic strip (22) is disconnected from the target conductive strip, and the elastic member (52) drives the reset rod (51) to be inserted between the contact points of the bimetallic strip (22) and the target conductive strip; When the reset rod (51) is pressed, the reset rod (51) is withdrawn from between the contact points of the bimetallic strip (22) and the target conductive strip, and the bimetallic strip (22) is reconnected with the target conductive strip.

11. The connection terminal according to claim 10, characterized in that: The reset rod (51) comprises a rod body (511) and a spacer rib (512); A portion of the rod body (511) is located inside the accommodating cavity (11) and abuts against the elastic member (52), and another portion is located outside the accommodating cavity (11); The partition rib (512) is connected to one side of the rod body (511), and the partition rib (512) is used to be inserted between the contact point of the bimetallic strip (22) and the target conductive strip.

12. The connection terminal according to claim 11, characterized in that: 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 strip; The partition rib (512) is located between the bimetallic strip (22) and the target conductive strip, and can be inserted between the contact point of the bimetallic strip (22) and the target conductive strip, or can be withdrawn from the contact point of the bimetallic strip (22) and the target conductive strip, driven by the rod body (511).

13. The connection terminal according to claim 12, characterized in that: The rod body (51) is located on a side of the bimetallic strip (22) close to the L-pole wiring hole (12).

14. The connecting terminal according to claim 12 or 13, characterized in that: The bimetallic strip (22) comprises a main body section (221), a first bending section (222) and a first connecting section (223) which are connected in sequence; The first connecting section (223) is used to connect with the target conductive sheet via a contact point, and the first bending section (222) is bent relative to the first connecting section (223) in a direction away from the target conductive sheet; The partition rib (512) is located between the main body section (221) and the target conductive sheet, and abuts against the first bending section (222).

15. The connection terminal according to claim 14, characterized in that: The bimetallic strip (22) further comprises a second connecting section (224) and a second bending section (225) which are connected in sequence, wherein the second bending section (225) is connected to the main section (221); The second connecting section (224) is used to connect to a non-target conductive sheet among the first conductive sheet (21) and the second conductive sheet (23), and the second bending section (225) is bent relative to the second connecting section (224) in a direction away from the non-target conductive sheet.

16. The connecting terminal according to any one of claims 10 to 13, characterized in that: The second conductive sheet (23) passes through a first side wall (111) of the accommodating cavity (11), and the reset rod (51) passes through a second side wall (112) of the accommodating cavity (11); Wherein, the first side wall (111) and the second side wall (112) are arranged opposite to each other.

17. The connection terminal according to claim 16, characterized in that: One end of the bimetallic strip (22) is close to the first side wall (111), and the other end is close to the second side wall (112); One end of the bimetallic strip (22) close to the second side wall (112) is connected to the target conductive strip via a contact point.

18. The connection terminal according to claim 17, characterized in that: The second conductive sheet (23) is the target conductive sheet, and the second conductive sheet (23) is connected to an end of the bimetallic sheet (22) close to the second side wall (112) via a contact point; The first conductive sheet (21) is connected to an end of the bimetallic sheet (22) close to the first side wall (111).

19. A socket, characterized in that: The socket comprises a socket housing (100), a socket assembly (200) and a connection terminal (300) according to any one of claims 1 to 18; The socket assembly (200) and the connection terminal (300) are located inside the socket housing (100), and a plurality of conductive parts of the connection terminal (300) are electrically connected to socket assemblies (200) of different polarities, respectively.

20. The socket according to claim 19, characterized in that The wiring terminal (300) is the wiring terminal (300) according to any one of claims 9 to 19; A portion of the reset component (5) of the connection terminal (300) is exposed on the outer surface of the socket housing (100).

21. The socket according to claim 20, characterized in that A portion of the reset assembly (5) is exposed on the socket surface (1000) of the socket housing (100).

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