CN212365881U - Secondary terminal and circuit breaker - Google Patents

Abstract

The utility model provides a secondary terminal and circuit breaker relates to circuit breaker technical field. The secondary terminal includes an upper terminal and a signal module. The upper terminal is provided with a first conductor and a plug hole, and one end of the first conductor is arranged in the plug hole. The signal module comprises a module main body, an electric connection structure and a plug terminal, wherein the module main body is detachably connected with the electric connection structure, the module main body is electrically connected with the electric connection structure, one end of the plug terminal is connected with the electric connection structure, and a second electric conductor is arranged on the plug terminal. The plug terminal is detachably inserted into the plug hole, and the first electric conductor is electrically connected with the second electric conductor. The utility model also provides a circuit breaker, it has adopted foretell secondary terminal. The utility model provides a dismouting difficulty among the prior art can be solved to secondary terminal and circuit breaker, takes trouble hard, and the technical problem that the maintenance cost is high.

Description

Secondary terminal and circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field particularly, relates to a secondary terminal and circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. Therefore, the circuit breaker provides safe guarantee for the circuit, and then a user can safely and safely use the electric energy.

In prior art, the structure of circuit breaker is complicated, causes the problem that the process is complicated when the circuit breaker dismouting to further lead to increased user's the operation degree of difficulty, and take trouble hard, increased the problem of maintenance cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a secondary terminal, for example, it can solve dismouting difficulty among the prior art, takes trouble hard, and the technical problem that the maintenance cost is high.

The utility model discloses an aim still includes, provides a circuit breaker, and it can solve dismouting difficulty among the prior art, takes trouble hard, and the technical problem that the maintenance cost is high.

The embodiment of the utility model discloses a can realize like this:

an embodiment of the utility model provides a secondary terminal, including last terminal and signal module.

The upper terminal is provided with a first conductor and a plug hole.

The signal module comprises a module main body, an electric connection structure and a plug terminal, wherein the module main body is detachably connected with the electric connection structure, the module main body is electrically connected with the electric connection structure, one end of the plug terminal is connected with the electric connection structure, a second conductor is arranged on the plug terminal, and the second conductor is electrically connected with the electric connection structure.

The plug terminal is detachably inserted into the plug hole, and the first conductor is electrically connected with the second conductor.

Optionally, the second conductor extends along the plug terminal, and an end of the second conductor, which is far away from the electrical connection structure, protrudes outside the plug terminal.

Optionally, the plug terminal includes a terminal body and a protrusion protruding from the terminal body, one end of the terminal body is connected to the electrical connection structure, the second conductor is disposed outside the terminal body, and the protrusion is disposed between the second conductor and the terminal body and abuts against the second conductor, so that a gap is formed between the terminal body and the terminal body.

Optionally, the protrusion is disposed in a middle portion of the terminal body and abuts against a middle portion of the second conductive body.

Optionally, the plug terminal further includes a first limiting portion extending along the terminal main body, the first limiting portion is convexly disposed on the terminal main body, a containing groove extending along the terminal main body is formed between the first limiting portion and the terminal main body, the second conductors are all disposed in the containing groove, and at least a portion of the second conductors extend to an outer side of the first limiting portion, which is far away from the terminal main body.

Optionally, the first position-limiting portion is further provided with a through hole, the through hole is formed in one end, away from the electrical connection structure, of the first position-limiting portion, the through hole is communicated with the accommodating groove, and the second conductor protrudes from the through hole to the outer side, away from the terminal main body, of the first position-limiting portion.

Optionally, an end of the second conductive body away from the electrical connection structure is at least partially protruded toward a side away from the terminal body to form a contact end.

Optionally, the plug terminal further includes a plug connector disposed at an end of the terminal body away from the electrical connection structure.

The terminal comprises a terminal body, a plug-in connector and a contact end, wherein a first limiting end is arranged on one side of the plug-in connector, which is close to the electric connection structure, and a second limiting part is convexly arranged on one side of the plug-in connector, a gap is formed between the second limiting part and the terminal body, a first limiting end is arranged on one side of the contact end, which is close to the plug-in connector, and the first limiting end is arranged between the second limiting part and. And/or a limiting groove is formed in the side face, close to the electric connection structure, of the plug connector, the terminal main body forms one inner peripheral wall of the limiting groove, a second limiting end is arranged on one side, close to the plug connector, of the contact end, and the second limiting end extends into the limiting groove.

Optionally, the two second electric conductors are arranged on the plug terminal, and the two second electric conductors are respectively arranged on two opposite sides of the plug terminal.

The number of the first electric conductors is two, and the two first electric conductors are respectively arranged on two inner side walls which are oppositely arranged in the inserting hole.

When the plug terminal is inserted into the plug hole, the two first electric conductors are electrically connected with the two second electric conductors in a one-to-one correspondence manner.

A circuit breaker includes a secondary terminal. The secondary terminal includes an upper terminal and a signal module.

The upper terminal is provided with a first conductor and a plug hole.

The signal module comprises a module main body, an electric connection structure and a plug terminal, wherein the module main body is detachably connected with the electric connection structure, the module main body is electrically connected with the electric connection structure, one end of the plug terminal is connected with the electric connection structure, and a second electric conductor is arranged on the plug terminal.

The plug terminal is detachably inserted into the plug hole, and the first conductor is electrically connected with the second conductor.

The utility model provides a secondary terminal includes for prior art's beneficial effect, for example:

the utility model provides a secondary terminal can pass through the spliced eye of the spliced eye grafting to the last terminal in to make the indirect electricity of second electric conductor on the spliced eye and the first electric conductor interconnect of spliced eye internal perisporium be connected realization module main part and last terminal simultaneously and be connected, at this moment, when other circuits of last terminal switching, just can make the module main part switch over to this circuit in, and correspond and realize corresponding function. Wherein, only need carry out the electricity connection between terminal and the signal module of just can accomplishing in the cooperation of one time of spliced terminal and spliced eye, improved the convenience of secondary terminal dismouting, and then make the circuit breaker that adopts this secondary terminal equally can improve the convenience of dismouting. In order to solve the technical problems of difficult disassembly and assembly, labor waste and high maintenance cost in the prior art.

The utility model also provides a circuit breaker, it has adopted foretell secondary terminal, and its beneficial effect for prior art is the same for prior art with the above-mentioned secondary terminal that provides, no longer gives unnecessary details here.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a secondary terminal provided in a first embodiment of the present application;

fig. 2 is a schematic cross-sectional structural view of a secondary terminal provided in the first embodiment of the present application;

fig. 3 is a schematic structural diagram of a signal module provided in the first embodiment of the present application;

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 3;

fig. 5 is an exploded view of a signaling module provided in a first embodiment of the present application;

fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Icon: 10-a secondary terminal; 100-upper terminal; 110-a plug hole; 120-a first electrical conductor; 130-wiring holes; 200-a signal module; 210-a plug terminal; 211-a second electrical conductor; 2111-contact end; 2112-first limit end; 2113-second limit end; 212-a terminal body; 2121-avoidance groove; 213-a protrusion; 214-a first stop; 2141-a receiving groove; 2142-a through hole; 215-a plug-in connector; 2151-a second stopper; 2152-spacing groove; 220-a module body; 230-an electrical connection structure; 300-lower terminal.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

First embodiment

Referring to fig. 1, wherein an arrow in fig. 1 indicates an assembly direction, an embodiment of the present application provides a secondary terminal 10, where the secondary terminal 10 is applied to a circuit breaker, and the secondary terminal 10 may have any one of a plurality of signal conversion and communication functions or functions as a synchronous module, so that when the secondary terminal 10 is connected to a corresponding circuit breaker, the corresponding function can be correspondingly implemented. In addition, the secondary terminal 10 can also solve the technical problems of difficulty in dismounting, trouble and labor waste and high maintenance cost in the prior art.

Referring to fig. 1 and 2, the secondary terminal 10 includes an upper terminal 100 and a signal module 200, the upper terminal 100 and the signal module 200 can be detachably connected to each other, the signal module 200 can be further used to be plugged into a lower terminal 300 to form the secondary terminal 10, and the lower terminal 300 can be connected to a controller of a circuit breaker, so that the circuit breaker can implement corresponding functions. The upper terminal 100 is used for switching other conductive structures, for example, the upper terminal 100 can be used for an external circuit, so that the secondary terminal 10 is connected to the external circuit. The signal module 200 has corresponding functions, for example, the signal module 200 may have any one of a plurality of signal conversion and communication functions or functions as a synchronization module, and the signal module 200 is used to access a controller of the circuit breaker, so that the secondary terminal 10 can be accessed to the circuit breaker, and the circuit breaker can implement the corresponding functions.

Referring to fig. 3 and 4, the upper terminal 100 has a first conductor 120 and a plugging hole 110, one end of the first conductor 120 is disposed inside the plugging hole 110, and the other end of the first conductor 120 is used for connecting to other conductive structures. It should be noted that the insertion hole 110 is used for inserting the signal module 200, so as to achieve the detachable connection between the upper terminal 100 and the signal module 200, and at the same time, to electrically connect the signal module 200 and the first electrical conductor 120. In addition, the end of the first conductive body 120 disposed in the insertion hole 110 is attached to the inner peripheral wall of the insertion hole 110, so as to avoid affecting the insertion of the signal module 200 into the insertion hole 110. Optionally, the upper terminal 100 may be provided with a wiring hole 130, and one end of the first conductor 120 is disposed inside the wiring hole 130, so that when the upper terminal 100 is connected to an external circuit through the wiring hole 130, the first conductor 120 can be electrically connected to the external circuit.

Correspondingly, the signal module 200 includes a module body 220, an electrical connection structure 230, and a jack terminal 210. Wherein the module main body 220 is detachably connected with the electrical connection structure 230, and the module main body 220 is electrically connected with the electrical connection structure 230. One end of the plug terminal 210 is connected to the electrical connection structure 230, and the second electrical conductor 211 is disposed on the plug terminal 210, and the second electrical conductor 211 is electrically connected to the electrical connection structure 230, so that the second electrical conductor 211 is indirectly electrically connected to the module main body 220. It should be noted that, in some embodiments, when one end of the second conductor 211 is directly connected to the module main body 220, the end of the second conductor 211 connected to the module main body 220 may be regarded as the electrical connection structure 230. To achieve the connection between the upper terminal 100 and the signal module 200, the socket terminal 210 is inserted into the socket hole 110 and electrically connects the first and second electrical conductors 120 and 211 to each other. In addition, the plug terminal 210 is located on one side surface of the module main body 220 and is substantially parallel to the side surface, and meanwhile, a certain gap is formed between the plug terminal 210 and the side surface of the module main body 220, so as to prevent the module main body 220 from influencing the plug terminal 210 to be plugged into the plug hole 110.

It should be noted that, in the embodiment of the present application, the electrical connection structure 230 and the plug terminal 210 are both multiple, and one electrical connection structure 230 and one plug terminal 210 are correspondingly formed into a whole. Moreover, one of the electrical connection structures 230 and one of the plug terminals 210 are connected to form a sheet structure, a plurality of sheet structures are overlapped with each other, and the whole formed by overlapping the plurality of sheet structures is detachably connected to the module main body 220, so that the plurality of electrical connection structures 230 are electrically connected to the module main body 220.

The plug terminal 210 of the signal module 200 is plugged into the plug hole 110 of the upper terminal 100, and the second conductor 211 of the plug terminal 210 is electrically connected to the first conductor 120 on the inner peripheral wall of the plug hole 110 to realize indirect electrical connection between the module body 220 and the upper terminal 100, so that when the upper terminal 100 is connected to another circuit, the module body 220 can be connected to the circuit and correspondingly realize corresponding functions. Wherein, only need carry out the electric connection between last terminal 100 and the signal module 200 of once cooperation of spliced pole 210 and jack 110, improved the convenience of secondary terminal 10 dismouting, and then make the circuit breaker that adopts this secondary terminal 10 can improve the convenience of dismouting equally. In order to solve the technical problems of difficult disassembly and assembly, labor waste and high maintenance cost in the prior art.

It should be noted that, as shown in fig. 2, when the upper terminal 100 is connected to another conductive structure and forms an electrical circuit, the upper terminal 100 is required to form a current output end and a current input end, so that the first conductors 120 in the upper terminal 100 are connected, and the two first conductors 120 are respectively disposed on the inner side walls of the insertion holes 110, which are oppositely disposed, so as to avoid a short circuit caused by the contact between the two first conductors 120. Correspondingly, the plug terminal 210 is provided with two second conductors 211, the two second conductors 211 are respectively disposed on two opposite sides of the plug terminal 210, and the two first conductors 120 are respectively in one-to-one correspondence with the two second conductors 211, that is, one of the first conductors 120 is electrically connected with one of the second conductors 211, and the other one of the first conductors 120 is electrically connected with the other one of the second conductors 211, thereby forming an electrical loop. In addition, the two second conductors 211 are respectively disposed on two opposite sides of the plugging terminal 210, so that the two opposite sides of the plugging terminal 210 can provide a stabilizing effect for the second conductors 211, and the stability of the two second conductors 211 electrically connected to the two first conductors 120 can be ensured. Of course, in other embodiments, in a case where it is ensured that the two first conductors 120 do not contact each other to cause a short circuit, the two first conductors 120 may be disposed on inner peripheral walls disposed adjacent to each other in the inserting hole 110, and correspondingly, the two second conductors 211 may be disposed on adjacent side surfaces of the inserting terminal 210 correspondingly.

Further, referring to fig. 4, fig. 5 and fig. 6, in order to facilitate the electrical connection between the second electrical conductor 211 and the first electrical conductor 120, the second electrical conductor 211 extends along the plug terminal 210, and one end of the second electrical conductor 211, which is far away from the electrical connection structure 230, protrudes outside the plug terminal 210. When the inserting terminal 210 is inserted into the inserting hole 110, the second conductor 211 protrudes out of the inserting terminal 210, so that the second conductor 211 and the first conductor 120 can be conveniently contacted with each other, and the second conductor 211 and the first conductor 120 can be electrically connected in a contacting manner. Moreover, since the second conductor 211 extends along the plug terminal 210, when the plug terminal 210 is inserted into the plug hole 110, the second conductor 211 also extends into the plug hole 110, so that the electrical connection with the first conductor 120 can be stabilized by the inner peripheral wall of the plug hole 110 and the outer side of the plug terminal 210, thereby ensuring the stability of the electrical connection between the first conductor 120 and the second conductor 211.

Alternatively, in an embodiment of the present application, the plug terminal 210 may include a terminal body 212 and a protrusion 213 protruding from the terminal body 212. One end of the terminal body 212 is connected to the electrical connection structure 230, the second conductor 211 is disposed outside the terminal body 212, and the protrusion 213 is disposed between the second conductor 211 and the terminal body 212 and abuts against the second conductor 211, so that a gap is formed between the second conductor 211 and the terminal body 212. When the plug-in terminal 210 is plugged into the plug-in hole 110, one side of the second conductor 211, which is far away from the terminal body 212, abuts against the first conductor 120, and at this time, the second conductor 211 can generate a certain elastic deformation toward one side of the gap, so that the second conductor 211 can conveniently extend into the plug-in hole 110, and meanwhile, the second conductor 211 can be ensured to be stably contacted with the first conductor 120 by the elastic restoring force of the second conductor 211, thereby ensuring stable electrical connection between the first conductor 120 and the second conductor 211.

Further, in the embodiment of the present application, the protrusion 213 is disposed in the middle of the terminal main body 212 and abuts against the middle of the second conductive body 211. It should be noted that, when the second conductor 211 extends into the inserting hole 110, one end of the second conductor 211, which is far away from the electrical connection structure 230, is first contacted with the first conductor 120, at this time, the second conductor 211 can provide an acting force to the first conductor 120 in a direction toward the terminal body 212, and under the abutting action of the protrusion 213, the second conductor 211 is elastically deformed, so that the end of the second conductor 211, which is far away from the electrical connection structure 230, is bent toward the terminal body 212. At this time, the second conductor 211 can be conveniently inserted into the insertion hole 110 by bending the second conductor 211, and the stability of the contact between the second conductor 211 and the first conductor 120 can be ensured by the elastic restoring force of the second conductor 211.

In addition, in order to facilitate the first conductor 120 and the second conductor 211 to have excellent conductivity and elastic performance, the first conductor 120 and the second conductor 211 are both provided by metal elastic sheets. Of course, in other embodiments, the first conductor 120 and the second conductor 211 may be configured to be composed of a rigid conductor and an elastic member.

It should be noted that, in order to improve the stability of the second conductor 211 disposed on the terminal body 212, a plurality of protrusions 213 may be disposed on the terminal body 212, the protrusions 213 are spaced from each other, and the protrusions 213 are all abutted against the second conductor 211. The second conductor 211 can be supported and abutted by the plurality of protrusions 213, and the stability of the second conductor 211 arranged on the terminal body 212 can be improved. In addition, in order to avoid the plurality of protrusions 213 affecting the elastic deformation of the second conductor 211, the plurality of protrusions 213 are disposed near one end of the second conductor 211 close to the electrical connection structure 230.

Further, in order to further facilitate the elastic deformation of the second conductor 211, and to increase the stroke of the elastic deformation of the second conductor 211. In some embodiments of the present application, an avoiding groove 2121 is disposed at an end of the terminal main body 212 far from the electrical connection structure 230, the avoiding groove 2121 corresponds to an end of the second conductor 211 far from the electrical connection structure 230, and when the second conductor 211 abuts against the first conductor 120 and needs to be deformed greatly, the avoiding groove 2121 can accommodate the second conductor 211, so as to ensure that the second conductor 211 completes a large degree of elastic deformation. It is to be understood that the provision of the escape groove 2121 may be eliminated in the case where the terminal body 212 does not affect the deformation of the second conductive body 211.

In the embodiment of the present application, the plug terminal 210 may further include a first limiting portion 214 extending along the terminal main body 212, the first limiting portion 214 is disposed on the terminal main body 212 in a protruding manner, a receiving groove 2141 extending along the terminal main body 212 is formed between the first limiting structure and the terminal main body 212, the protrusion 213 and the second conductor 211 are disposed inside the receiving groove 2141, and at least a portion of the second conductor 211 extends to an outer side of the first limiting portion 214 away from the terminal main body 212. By the arrangement of the first limiting part 214, the stability of the second conductor 211 arranged in the plug terminal 210 can be ensured, and the problem that the second conductor 211 is easy to bend towards the direction far away from the terminal main body 212 by external force is solved.

Alternatively, the mating terminal 210 has two first side surfaces and a second side surface adjacent to the two first side surfaces. The two second conductors 211 respectively penetrate through the two first side surfaces, so that the second conductors 211 extend to the outside of the plug terminal 210. In addition, in the embodiment of the present application, the two receiving grooves 2141 have openings on the second side surface, a portion between the two receiving grooves 2141 is the terminal main body 212, and opposite portions outside the two receiving grooves 2141 are the two first limiting portions 214. As can be seen, the receiving groove 2141 extending along the terminal main body 212 refers to that one end of the receiving groove 2141 is located at one end of the terminal main body 212 close to the electrical connection structure 230, and the other end is located at one end of the terminal main body 212 far from the electrical connection structure 230. At this time, the cross section of the first position-limiting portion 214 is substantially L-shaped, so that a receiving groove 2141 is formed between the first position-limiting portion 214 and the terminal main body 212. It should be noted that, in other embodiments of the present application, the arrangement manner of the receiving groove 2141 may also be different, for example, the opening of the receiving groove 2141 on the second side surface is eliminated, so that the receiving groove 2141 is located inside the plug terminal 210.

Furthermore, in order to facilitate the second conductive body 211 to extend out of the plug terminal 210, the first position-limiting portion 214 is provided with a through hole 2142, the through hole 2142 is provided at an end of the first position-limiting portion 214 away from the electrical connection structure 230, the through hole 2142 is communicated with the receiving groove 2141, and the second conductive body 211 protrudes out of the first position-limiting portion 214 away from the terminal main body 212 from the through hole 2142. It should be noted that the length of the first position-limiting portion 214 is smaller than the length of the terminal main body 212, so that a through hole 2142 communicating with the receiving groove 2141 is formed at an end portion of the first position-limiting portion 214 away from the electrical connection structure 230, and the second conductor 211 can extend out of the first position-limiting portion 214 through the through hole 2142.

Of course, in some embodiments of the present application, the first position-limiting portion 214 may be eliminated.

The end of the second electrical conductor 211 remote from the electrical connection structure 230 projects 213 at least partially towards the side remote from the terminal body 212 to form a contact end 2111. The contact end 2111 may extend from the through hole 2142 to the outside of the first limiting portion 214, when the plug terminal 210 extends into the plug hole 110, the contact end 2111 contacts the first conductor 120, the end of the second conductor 211 where the contact end 2111 is disposed bends toward the terminal main body 212 by the abutting force of the first conductor 120, and the contact end 2111 contacts the first conductor 120 by the elastic restoring force of the second conductor 211, so as to achieve the electrical connection between the first conductor 120 and the second conductor 211. Optionally, in the embodiment of the present application, the contact end 2111 is curved to form an arc shape, so as to prevent the contact end 2111 from affecting the insertion of the plug terminal 210 into the plug hole 110. It should be understood that in other embodiments, in the case that the contact end 2111 is inserted into the inserting hole 110, it is sufficient to ensure that the contact end 2111 is conveniently contacted with the first conductor 120, and the shape of the contact end 2111 is not limited.

Further, to limit movement of the second electrical conductor 211 away from the end of the electrical connection structure 230, the plug terminal 210 may further include a plug 215, the plug 215 being disposed at the end of the terminal body 212 away from the electrical connection structure 230. A second position-limiting portion 2151 is convexly disposed on one side of the plug 215 close to the electrical connection structure 230, and a gap is formed between the second position-limiting portion 2151 and the terminal body 212. In addition, since the contact end 2111 is arc-shaped, a first limiting end 2112 is arranged on one side of the contact end 2111 close to the plug 215, and the first limiting end 2112 is arranged between the second limiting portion 2151 and the terminal main body 212. At this time, when the end of the second conductor 211 far from the electrical connection structure 230 is elastically deformed and moves up and down, the second conductor 211 can be restricted from moving by the second limiting portion 2151, thereby preventing the second conductor 211 from being damaged due to excessive deformation. In addition, a limiting groove 2152 is further formed in one side, close to the electrical connection structure 230, of the plug 215, the terminal body 212 forms one inner peripheral wall of the limiting groove 2152, and a second limiting end 2113 is further arranged on one side, close to the plug 215, of the contact end 2111, namely the second limiting end 2113 can be convexly arranged on the end face, far away from the contact end 2111, of the first limiting end 2112, the second limiting end 2113 extends into the limiting groove 2152, a limiting effect of moving up and down can be further provided for the second conductor 211 through the inner peripheral wall of the limiting groove 2152, and the problem that the second conductor 211 is damaged due to excessive deformation is further avoided.

It should be noted that, in other embodiments, the arrangement of the second stopper 2151 and the stopper groove 2152 may alternatively be adopted. That is, only the second stopper 2151 may be provided on the plug 215, and only the first stopper 2112 may be provided on the second conductor 211. Alternatively, only the limiting groove 2152 may be formed on the plug 215, and correspondingly, only the second limiting end 2113 may be formed on the second conductor 211, where the second limiting end 2113 is disposed on a side of the contact end 2111 away from the electrical connection structure 230. In other words, the plug 215 may be provided with a second limiting portion 2151, and one side of the contact end 2111 is provided with a corresponding first limiting end 2112; and/or, the plug 215 may be provided with a limit groove 2152, and one side of the contact end 2111 is provided with a corresponding second limit end 2113.

Moreover, in the embodiment of the present application, the height of the plug 215 relative to the terminal body 212 is smaller than the height of the contact end 2111 relative to the terminal body 212, so as to prevent the plug 215 from affecting the mutual contact and electrical connection between the contact end 2111 and the first electrical conductor 120.

In addition, one side of plug 215 far away from electrical connection structure 230 is further provided with a chamfer, so that the cross-sectional area of plug 215 is gradually increased from one end far away from terminal main body 212 to one end close to terminal main body 212, so as to facilitate plug 215 to stretch into plug hole 110, further facilitate plug terminal 210 to stretch into plug hole 110, reduce the difficulty of plug terminal 210 in plug hole 110, and improve assembly efficiency.

It should be noted that, since the two second conductors 211 on the plug terminal 210 have the same structure, and the corresponding structures corresponding to the two second conductors 211 are the same, the description of the other second conductor 211 and the corresponding structure thereof is omitted here.

In the embodiment of the present application, the terminal body 212, the first position-limiting portion 214, the plug 215, and the protrusion 213 are formed by integral molding. That is, the form of the socket terminal 210 may be as follows: the mating terminal 210 has two first side surfaces disposed opposite to each other and a second side surface adjacent to both the first side surfaces. The second side surface is provided with a receiving groove 2141 extending along the plug terminal 210, and the receiving groove 2141 has an opening on the second side surface, which is equivalent to forming the terminal main body 212 and the first position-limiting portion 214 by providing the receiving groove 2141. A plurality of protrusions 213 are protruded on the inner circumferential wall of the receiving groove 2141. The length of the receiving groove 2141 is smaller than the length of the plug terminal 210, which is equivalent to that the plug 215 is formed at an end of the receiving groove 2141 away from the electrical connection structure 230. In addition, a through hole 2142 communicating with the accommodating groove 2141 is formed in the first side surface, and the through hole 2142 also has a notch in the second side surface. In addition, in the extending direction of the plug terminal 210, two peripheral walls of the through hole 2142 have a distance from two peripheral walls of the receiving groove 2141, so that the two sides of the through hole 2142 are the first position-limiting portion 214 and the second position-limiting portion 2151 in the extending direction of the plug terminal 210. In addition, a limit groove 2152 is formed on an inner side surface of the receiving groove 2141 away from the electrical connection structure 230. The second conductive body 211 is disposed in the receiving groove 2141, and the second conductive body 211 abuts against the protrusion 213, such that the contact end 2111 extends out from the through hole 2142, the first limiting end 2112 is disposed between the second limiting portion 2151 and the terminal main body 212, and the second limiting end 2113 extends into the limiting groove 2152, thereby forming the above-mentioned plug-in terminal 210.

To sum up, the secondary terminal 10 provided in the embodiment of the present application can be plugged into the plugging hole 110 of the upper terminal 100 through the plugging terminal 210 in the signal module 200, and at the same time, the second conductor 211 on the plugging terminal 210 and the first conductor 120 on the inner peripheral wall of the plugging hole 110 are electrically connected to each other to realize indirect electrical connection between the module main body 220 and the upper terminal 100, at this time, when the upper terminal 100 is connected to another circuit, the module main body 220 can be connected to the circuit, and corresponding functions are correspondingly realized. Wherein, only need carry out the electric connection between last terminal 100 and the signal module 200 of once cooperation of spliced pole 210 and jack 110, improved the convenience of secondary terminal 10 dismouting, and then make the circuit breaker that adopts this secondary terminal 10 can improve the convenience of dismouting equally. In order to solve the technical problems of difficult disassembly and assembly, labor waste and high maintenance cost in the prior art.

Second embodiment

The embodiment provides a circuit breaker (not shown), which adopts the secondary terminal 10, and can solve the technical problems of difficulty in dismounting, trouble and labor consumption and high maintenance cost in the prior art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A secondary terminal is characterized by comprising an upper terminal and a signal module;

the upper terminal is provided with a first conductor and an inserting hole;

the signal module comprises a module main body, an electric connection structure and a plug-in terminal, wherein the module main body is detachably connected with the electric connection structure and is electrically connected with the electric connection structure, one end of the plug-in terminal is connected with the electric connection structure, a second conductor is arranged on the plug-in terminal, and the second conductor is electrically connected with the electric connection structure;

the plug terminal is detachably inserted into the plug hole, and the first conductor is electrically connected with the second conductor.

2. The secondary terminal of claim 1, wherein the second conductor extends along the mating terminal, and an end of the second conductor remote from the electrical connection structure protrudes outside the mating terminal.

3. The secondary terminal of claim 2, wherein the plug terminal comprises a terminal body and a protrusion protruding from the terminal body, one end of the terminal body is connected to the electrical connection structure, the second conductor is disposed outside the terminal body, and the protrusion is disposed between the second conductor and the terminal body and abuts against the second conductor, so that a gap is formed between the terminal body and the terminal body.

4. The secondary terminal of claim 3, wherein the protrusion is disposed in the middle of the terminal body and abuts against the middle of the second conductor.

5. The secondary terminal of claim 3, wherein the plug terminal further comprises a first limiting portion extending along the terminal body, the first limiting portion is protruded from the terminal body, and a receiving groove extending along the terminal body is formed between the first limiting portion and the terminal body, the second conductors are disposed in the receiving groove, and at least a portion of the second conductors extends to an outer side of the first limiting portion away from the terminal body.

6. The secondary terminal as claimed in claim 5, wherein the first position-limiting portion further comprises a through hole, the through hole is disposed at an end of the first position-limiting portion away from the electrical connection structure, the through hole is communicated with the receiving groove, and the second conductor protrudes from the through hole to an outer side of the first position-limiting portion away from the terminal body.

7. The secondary terminal of claim 3 wherein an end of the second electrical conductor remote from the electrical connection structure at least partially protrudes toward a side remote from the terminal body to form a contact end.

8. The secondary terminal of claim 7, wherein the mating terminal further comprises a mating plug disposed at an end of the terminal body distal from the electrical connection structure;

a second limiting part is convexly arranged on one side, close to the electric connection structure, of the plug-in connector, a gap is formed between the second limiting part and the terminal main body, a first limiting end is arranged on one side, close to the plug-in connector, of the contact end, and the first limiting end is arranged between the second limiting part and the terminal main body; and/or a limiting groove is formed in the side face, close to the electric connection structure, of the plug connector, the terminal main body forms one inner peripheral wall of the limiting groove, a second limiting end is arranged on one side, close to the plug connector, of the contact end, and the second limiting end extends into the limiting groove.

9. The secondary terminal as claimed in any one of claims 1 to 8, wherein the plug terminal is provided with two second conductors, and the two second conductors are respectively provided on two opposite sides of the plug terminal;

the two first electric conductors are respectively arranged on two inner side walls oppositely arranged in the inserting hole;

when the plug terminal is inserted into the plug hole, the two first electric conductors are electrically connected with the two second electric conductors in a one-to-one correspondence manner.

10. A circuit breaker comprising a secondary terminal as claimed in any one of claims 1 to 9.

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