CN110277658B

CN110277658B - Conductive assembly structure of electrical wiring device

Info

Publication number: CN110277658B
Application number: CN201810217922.6A
Authority: CN
Inventors: 吴智远; 陈玮奇; 戴明杉
Original assignee: Switchlab Shanghai Co Ltd; Gaocheng Electronics Co Ltd
Current assignee: Switchlab Shanghai Co Ltd; Gaocheng Electronics Co Ltd
Priority date: 2018-03-16
Filing date: 2018-03-16
Publication date: 2020-12-11
Anticipated expiration: 2038-03-16
Also published as: CN110277658A

Abstract

The invention relates to a conductive component structure of an electrical wiring device, which provides the functions of increasing the conductive efficiency, the stability of a combined wire and the like. The conductive assembly comprises a plate-shaped body, a limiting body connected to the body and an auxiliary device (or an elastic device) combined with the limiting body; and the limiting body is provided with a base part, a first arm and a second arm which are connected with the base part, and a free section which is connected with the first arm and the second arm, and is matched with an auxiliary device (or an elastic device) to ensure that the limiting body has larger elastic clamping action. When the lead is inserted into the contact conductive assembly, the tail end of the lead is pressed between the first arm and the second arm of the limiting body to form fixation; the problems that the conducting wire is easy to deviate or shake due to external force, the contact is unstable, the conducting efficiency and the safety are influenced and the like are solved.

Description

Conductive assembly structure of electrical wiring device

Technical Field

The present invention relates to a conductive assembly structure of an electrical connection device, and more particularly, to a conductive assembly having a limiter, an assistant or an elastic device for guiding and assisting the limiter to fix a wire.

Background

In the prior art, a metal component (or called a conductive component) and a spring conductor (or called a metal spring) which are wrapped in an insulating housing (usually made of a plastic material) are used to press or couple a wire entering a terminal, so as to form a terminal device or a switch wiring device which is electrically connected or released with the wire. For example, CN 102204015 a "electrical connection terminal", DE 29915515U 1, EP 2325947 a1, taiwan No. 103206602 "switch connection terminal base structure", and 104134448 "switch connection device" patent provide typical examples.

The prior art also discloses a technical means for forming a plurality of electrical connection terminals in an arrangement type of buckling grounding rail (or conductive rail) to establish a shared grounding device for electrical or mechanical equipment to derive the residual voltage or static electricity of the machine. For example, germany patents such as DE 202008015306U 1, US 2013/0143433 a1 "CONNECTION TERMINAL", US 2014/0127932 a1 "ELECTRICAL CONNECTION TERMINAL", DE 102012009286 a1, and US 5362259 "GROUND CONNECTION TERMINAL (GROUND CONNECTION TERMINAL) provide possible examples.

Such electrical connection terminals or switch wiring devices generally comprise an insulating housing; the shell is provided with a wire inlet hole, so that a wire can be inserted into the shell. The shell also defines a cavity for assembling the conductive bracket (or conductive component) and the metal elastic sheet, so that the metal elastic sheet and the conductive component press the wires inserted into the shell to form contact or electrical connection. The electric connection or contact state of the lead, the metal spring piece and the conductive assembly can not be released unless a person operates other tools to extend into the shell to push the metal spring piece.

The subject of a combined structure of electrical connection terminals or switch wiring devices in terms of construction and operation applications includes:

in practice, after the conductor is inserted into the housing to connect the conductive assembly in the actual wiring operation, the personnel can bend the conductor outside the housing according to the field space condition or the wiring path to perform the wiring operation. The whole-line operation often causes the tail end of the wire to tilt (or leave the conductive component) due to the influence of lever action formed by pressing the metal elastic sheet on the wire, so that the contact area between the wire and the conductive support (or the conductive component) is reduced, the impedance and the temperature of the conductive support are relatively increased, or the heat resistance limit of the plastic insulating shell is exceeded, the shell is damaged, and the safety is influenced.

In order to improve the above-mentioned pressing force and conductive safety or efficiency, a means of additionally disposing an elastic sheet behind the metal elastic sheet to assist in pressing the conductive wire has been disclosed in the prior art. For example, patent documents EP 3226351 a1, EP3226352 a1, etc. provide specific examples.

However, they are only suitable for wires of a specific or small wire diameter to generate a sufficient pressing force; in the use situation of the pin-jointed large-wire-diameter wire of the electric connecting terminal or the switch wiring device, the situations that the force of the metal elastic sheet and the conductive assembly for pressing the wire is insufficient, the pressing is unstable and the tail end of the wire is warped can also occur, so that the wire is easy to rotate (or accidentally touched by personnel), shift and shake, and the safety problem of poor contact is caused; which are not desirable.

The prior art also discloses a structural form of superposing an elastic sheet and a steel elastic sheet to improve the pressing force of the elastic sheet and the steel elastic sheet; for example, DE 20014025U 1 provides a possible embodiment.

These prior art solutions show the technology of the design and application of the structural combination of the wire connection terminals or the switch connection devices; if the structural combination of the conductive assembly, the metal spring plate or the spring plate conductor is redesigned and considered, the structure is different from the prior structure, the use form of the conductive assembly, the metal spring plate or the spring plate conductor can be changed and is different from the prior structure; substantially, it will also increase its application range.

We have found that a desirable configuration of conductive elements must overcome or ameliorate the above-discussed problems; several design considerations should also be included, including:

1. the mating structure of the conductive assembly and/or the metal spring plate must provide sufficient pressing force without increasing the thickness of the conductive assembly and/or the metal spring plate, and allow application in the case of pivoting a large-diameter wire of an electrical connection terminal or a switch wiring device; and the situations that the existing structure has insufficient force for pressing the wire, the pressing is not stable, the wire is easy to shift and shake (or is touched by people carelessly), and poor contact safety is caused are improved.

2. The problem that the conductive contact area and the conductive efficiency are relatively affected when the tail end of the conductive wire is warped (or departed from the conductive bracket) due to the lever action in the conventional structure needs to be improved.

3. The conductive assembly structure can assist the metal elastic sheet to press the lead, so that the conductive assembly structure has the functions of guiding the lead and assisting in fixing the lead, and the situations of rotation, deviation and shaking of the lead are reduced.

However, none of the above problems are taught or specifically disclosed in the prior art.

Disclosure of Invention

The present invention is directed to a conductive element structure of an electrical connection device, which provides an effect of increasing the conductive performance and the stability of a combined conductive wire. The conductive assembly comprises a plate-shaped body, a limiting body connected to the body and an auxiliary device (or an elastic device) for combining the limiting body; and the limiting body is provided with a base part, a first arm and a second arm which are connected with the base part, and a free section which is connected with the first arm and the second arm, and is matched with an auxiliary device (or an elastic device) to ensure that the limiting body has larger elastic clamping function. When the lead is inserted into the contact conductive assembly, the tail end of the lead is pressed between the first arm and the second arm of the limiting body to form fixation; the problems that the conducting wire is easy to deviate or shake due to external force, the contact is unstable, the conducting efficiency and the safety are influenced and the like are solved.

According to the conductive element structure of the electrical wiring device, the first arm and/or the second arm are/is bent from the base part and extend obliquely in opposite directions or extend in the same direction to define an opening structure; and a bending part is formed between the first arm and the free section and/or between the second arm and the free section, so as to establish an opening structure. And the free section of the first arm and/or the free section of the second arm are bent and extended towards the external direction (or the opposite direction) of the limiting body, so that the limiting body can elastically expand and clamp the wires with different wire diameter specifications.

According to the conductive element structure of the electrical wiring device of the invention, the auxiliary device is in a U-shaped structure and is provided with a base region, a first waist part connected with the base region, a second waist part and a finger part connected with the first waist part and/or the second waist part, and the auxiliary device has an elastic (clamping) function together. And the finger part is contacted (or buckled) with the first arm bending part or the second arm bending part of the limiting body, so as to increase the acting force of the first arm and the second arm of the limiting body for pressing the lead, control the expansion movement range of the first arm and the second arm generated in response to the insertion of the lead, and assist in improving the elastic clamping action of the limiting body and preventing the limiting body from generating permanent deformation. According to the conductive element structure of the electrical wiring device of the invention, the auxiliary device is in a U-shaped structure and is provided with a base region, a first waist part connected with the base region, a second waist part and a finger part connected with the first waist part and/or the second waist part, and the auxiliary device has an elastic (clamping) function together. And the finger part is contacted (or buckled) with the first arm bending part or the second arm bending part of the limiting body, so as to increase the acting force of the first arm and the second arm of the limiting body for pressing the lead, control the expansion movement range of the first arm and the second arm generated in response to the insertion of the lead, and assist in improving the elastic clamping action of the limiting body and preventing the limiting body from generating permanent deformation.

Drawings

Fig. 1 is an exploded perspective view of an embodiment of the present invention.

Fig. 2 is a perspective structure assembly diagram of fig. 1.

Fig. 3 is a schematic cross-sectional view of fig. 2.

Fig. 4 is an exploded perspective view of another embodiment of the present invention.

Fig. 5 is an exploded perspective view of another embodiment of the present invention.

Fig. 6 is a perspective structure combination diagram of fig. 5.

Fig. 7 is a schematic cross-sectional view of fig. 6.

Fig. 8 is an exploded perspective view of another embodiment of the present invention.

Fig. 9 is an exploded perspective view of another embodiment of the present invention.

Fig. 10 is a perspective view of the assembly of fig. 9.

Fig. 11 is a cross-sectional structure diagram of fig. 10.

Fig. 12 is an exploded perspective view of another embodiment of the present invention.

Fig. 13 is an exploded perspective view of another embodiment of the present invention.

Fig. 14 is a perspective structure combination diagram of fig. 13.

Fig. 15 is a cross-sectional structure diagram of fig. 14.

Fig. 16 is an exploded perspective view of another embodiment of the present invention.

Fig. 17 is a perspective view of fig. 16.

Fig. 18 is a cross-sectional structure diagram of fig. 17.

Fig. 19 is an exploded perspective view of another embodiment of the present invention.

Fig. 20 is a perspective view of the assembly of fig. 19.

Fig. 21 is an exploded perspective view of another embodiment of the present invention.

Fig. 22 is a perspective view of the assembly of fig. 21.

The reference numerals of the main elements in the figures are explained as follows:

10. a body; 11. a first region; 12. a second region; 13. a ridge portion; 14. positioning holes; 20. a restriction body; 21. a first arm; 21a, 22a, wing portion; 22. a second arm; 23. 24, a free segment; 25. A base; 26. a mouth; 27. 28, a bending part; 29. an opening; 30. a metal spring sheet; 31. a first stage; 32. a second stage; 33. a bow portion; 34. a head end; 35. a tail end; 40. an assist device; 41. a first waist portion; 42. a second waist portion; 43. 44, a finger; 45. a base region; 46. a space; 49. an opening; 80. a wire; 81. a terminal end; 90. a housing; 90a, a positioning groove; 91. a chamber; 92. a wire inlet hole; 93. piling; 94. a positioning part.

Detailed Description

Referring to fig. 1, fig. 2 and fig. 3, fig. 1 is an exploded schematic view of a three-dimensional structure according to an embodiment of the present invention; the structure of the housing, the conductive assembly, the metal spring, the limiting body and the auxiliary device are shown. Fig. 2 is a perspective structure assembly diagram of fig. 1. FIG. 3 is a cross-sectional view of FIG. 2; showing the structural cooperation of the body, the limiting body, the assistor and the lead. As shown in fig. 1, 2 and 3, the conductive element structure of the electrical connection device of the present invention includes a combination 40 of a body 10, a limiting body 20 and an auxiliary device. The conductive assembly (or the body 10 and the limiting body 20) defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are perpendicular to each other, and the direction of the lead 80 inserted into the conductive assembly is the same as or parallel to the Z-direction reference axis; and, the conductive member is mounted in a case 90 made of an insulating material in cooperation with the metal dome 30, etc. to constitute a wire connection terminal, a switch wiring device, or the like.

Basically, the housing 90 defines a cavity 91 for assembling the body 10, the limiting body 20, the auxiliary device 40 and the metal dome 30 of the conductive assembly; the housing 90 has a wire inlet 92 communicating with the chamber 91, and the conductive wire 80 is inserted into the housing chamber 91 and the conductive member through the wire inlet 92 to form an electrical connection.

The upper, lower, outer, inner, etc. mentioned in the present invention are referred to as directions shown in the drawings.

As shown in fig. 1, 2 and 3, the body 10 is a plate-like structure made of conductive material (e.g., red copper, brass or the like), and includes a first region 11 parallel to the Z-reference axis and a second region 12 connected to the first region 11; and the second region 12 can be positioned and combined on a positioning groove 90a of the housing 90, and one end of the first region 11 can be formed with a protruding ridge 13 to form a load area for assisting in pressing the wire 80. And, the positioning grooves 90a of the housing 90 may be formed in the same direction or position of the X-direction reference axis. Wherein the first zone 11 and the second zone 12 are connected at an angle; in one embodiment, the first region 11 and the second region 12 are vertically connected.

In the present embodiment, the limiting body 20 may be integrally formed (or combined) on the body 10. The limiter 20, which may be made of an electrically conductive (metallic) material, is arranged in the region of the first zone 11 of the body 10. In particular, the limiter 20 has a base 25 connected to the body 10 (or the first zone 11), a first arm 21 connected to the base 25, a second arm 22 and

free sections

23, 24 connected to the first arm 21 and the second arm 22, which together provide the limiter 20 with an elastic action.

Specifically, the first arm 21 and the second arm 22 are respectively bent from the base 25 along the X-direction reference axis (or perpendicular to the insertion direction of the wire 80) and gradually extend obliquely toward opposite directions to define a triangular-profile mouth 26 structure; and a bending

part

27 and 28 is respectively formed between the first arm 21, the second arm 22 and the

free sections

23 and 24. Furthermore, the free section 23 of the first arm 21 and the free section 24 of the second arm 22 are bent and extended in opposite directions to establish an opening 29 structure; together, the restraining body 20 is resiliently expandable and clamps wires 80 of different wire diameter gauges. The opening 29 is shown in an upward (or X-reference axis) orientation.

Fig. 1, 2 and 3 also show that the restriction body 20 is expanded in a direction toward the outside of the restriction body 20 in a direction in which the lead wire 80 is inserted into the housing 90 or the wire insertion hole 92 (or along the Z-reference axis) such that the first and

second arms

21 and 22 are respectively protruded with the wing portions 21a and 22 a. The wing portions 21a, 22a are configured to assist in guiding the wire 80 into the conductive member.

In the present embodiment, the metal dome 30 has an "ㄥ" structure, and includes a first section 31, a second section 32, and an arch 33 connected between the first section 31 and the second section 32. The first section 31 includes a head end 34 that is securable to a locating hole 14 of the housing 90 or body 10 such that the bow 33 is assembled over a post 93 of the housing 90 or chamber 91 to allow the tail end 35 of the second section 32 to resiliently move to hold down the wire 80. As shown in fig. 1, the positioning hole 14 is provided on the second region 12 of the body 10.

The structure of the combination aid 40 of the restricting body 20 is also shown in fig. 1. The aid 40 is formed in a U-shaped configuration with a base 45, a first waist 41, a second waist 42 connecting the base 45 and

fingers

43, 44 connecting the first waist 41 and the second waist 42, which together define a space 46 with an opening 49 and which gives the aid 40 an elastic (clamping) action.

Specifically, the first waist portion 41 and the second waist portion 42 respectively extend from two ends of the base region 45 along the X-direction reference axis (or the direction perpendicular to the insertion direction of the lead 80), and are bent relatively toward the Y-direction reference axis to form

finger portions

43 and 44; and the base region 45 of the auxiliary device 40 is combined on a (plate-shaped structure) positioning portion 94 of the housing 90 (or the cavity 91), so that the

finger portions

43 and 44 are in contact with or buckled with the first arm bending portion 27 and the second arm bending portion 28 of the limiting body 20, so as to increase the force of the first arm 21 and the second arm 22 of the limiting body 20 for elastically pressing the lead 80, and control the expansion movement range of the first arm 21 and the second arm 22 in response to the insertion of the lead 80, thereby assisting in preventing the limiting body 20 from generating permanent deformation.

Referring to fig. 2 and 3, when the wire 80 is inserted into the contact conductive assembly from the wire insertion hole 92 (or along the Z-direction reference axis), the tail end 35 of the second section 32 of the metal spring 30 (or engages with the ridge 13 of the body 10) presses the wire 80 toward the body 10, the wire end 81 enters the mouth 26 of the limiting body 20 through the wings 21a and 22a, and the first arm 21 and the second arm 22 engage with the auxiliary device 40, so as to elastically clamp and fix the wire 80; the problems that the conducting wire is easy to shift or shake due to external force, the contact is unstable, the conducting efficiency and the safety are influenced and the like in the prior art are solved. Moreover, the first arm 21 and the second arm 22 cooperate with the auxiliary device 40 to press the conductive wire 80 (or the end 81 thereof) toward the main body 10 or toward the central region of the limiter 20 (or the mouth 26), so as to increase the conductive contact area and the conductive efficiency.

It can be understood that when the wire insertion operation and/or the wire trimming operation with a larger wire diameter is performed by a person and the wire end 81 is tilted, the wire end 81 is pressed or retained in the mouth 26 by the first arm 21 and the second arm 22 (and the auxiliary device 40), and the contact state of the conductive elements is maintained; thus, significant improvements are achieved in reducing conductive contact area, impedance, and temperature rise relative to prior art techniques in which the wire ends are tilted away from the conductive elements.

FIG. 4 shows a schematic exploded perspective view of another embodiment; the limiter 20 and body 10 are shown as a two-piece assembly. The first arm 21 and the second arm 22 of the limiting body are respectively bent from the two ends of the base 25 along the X direction to the reference axis (or the insertion direction of the vertical lead 80), and extend gradually and slantways towards the opposite direction, so as to define the structure of the mouth part 26; and

bent portions

27, 28 are formed between the first arm 21, the second arm 22 and the

free sections

23, 24, respectively. The

free sections

23 and 24 of the first and

second arms

21 and 22 are bent and extended in opposite directions to form the configuration of the opening 29.

Referring to fig. 5, 6 and 7, fig. 5 is an exploded schematic view of a three-dimensional structure according to another embodiment of the present invention; the structure of the housing, the conductive assembly body, the metal spring, the limiting body integrally formed on the body, and the elastic device is illustrated. Fig. 6 is a perspective structure combination diagram of fig. 5. FIG. 7 is a cross-sectional view of FIG. 6; showing the structural cooperation of the body, the limiting body, the elastic device and the lead. The housing 90 has a slot 97 communicating with the chamber 91 to assist in positioning or receiving a base 25 of the elastic device 50 and/or the restriction member 20; and, the limiting body 20 is integrally connected to the second region 12 of the body 10 at a region or position, such as the base 25 of the limiting body 20 connected to the body 10 (or the second region 12), or the second region 12 forming a neck 15.

In fig. 5, the first and

second arms

21 and 22 of the restricting body are respectively bent from the base 25 along the Z-direction reference axis (or toward the insertion direction of the wire 80) and gradually extend obliquely toward the opposite direction to define the structure of the mouth 26; and

bent portions

27, 28 are formed between the first arm 21, the second arm 22 and the

free sections

23, 24, respectively. The free section 23 of the first arm 21 and the free section 24 of the second arm 22 are bent and extended in opposite directions, thereby establishing an opening 29 structure in the Z-direction reference axis direction (or the insertion direction of the lead wire 80).

In this embodiment, the elastic device 50 can assist in increasing the force of the limiting body 20 to elastically clamp and fix the conducting wire 80. The elastic device 50 may be made of the same conductive material as the limiting body 20 or a material with rigidity (or elastic force) higher than that of the limiting body 20; such as steel or the like.

Fig. 5, 6 and 7 show that the elastic device 50 has a base 55 that can be received in the groove 97 of the housing 90, a first arm 51 connected to the base 55, a second arm 52 (extending toward the Z-reference axis through the body neck 15), and

free sections

53, 54 connecting the first arm 51 and the second arm 52.

Fig. 5 shows that the first and

second arms

51 and 52 of the elastic device are respectively bent from the two ends of the base 55 along the Z-direction reference axis (or the insertion direction of the lead 80) and gradually extend obliquely toward the opposite direction to define a triangular-profile mouth 56; and a

bent portion

57, 58 is formed between the first arm 51, the second arm 52 and the

free section

53, 54 of the elastic device. Furthermore, the free section 53 of the first arm 51 of the elastic device and the free section 54 of the second arm 52 of the elastic device are bent and extended in opposite directions, so as to establish an opening 59 structure facing the direction of the reference axis Z (or the insertion direction of the lead wire 80); together, the elastomeric body 50 surrounds or overlaps a localized or entire region of the limiter 20.

Fig. 6 and 7 also show the situation that the wire end 81 is clamped and fixed by the first arm bending part 27 and the second arm bending part 28 of the restricting body 20 in cooperation with the elastic device 50 after the wire 80 is inserted into the housing chamber 91 and the conductive assembly from the wire inlet hole 92. Therefore, even if the wire end 81 is tilted, the mechanism of contacting the first region 11 of the body 10 and the first and

second arms

21 and 22 of the regulating body 20 is maintained.

FIG. 8 is an exploded perspective view of another embodiment of the present invention; the construction is disclosed in which the limiter body 20 and the body 10 form a two-piece assembly. The base 25 of the limiting body 20 can be combined with the body 10 (or the second region 12), so that the first arm 21 and the second arm 22 are respectively bent from the two ends of the base 25 along the Z-direction reference axis (or towards the insertion direction of the lead 80) to pass through the neck 15 of the body, and extend obliquely towards the opposite direction to define the structure of the mouth 26; and

bent portions

27, 28 are formed between the first arm 21, the second arm 22 and the

free sections

23, 24 of the restricting body, respectively. The

free sections

23 and 24 of the first and

second arms

21 and 22 are bent and extended in opposite directions to establish an opening 29 structure.

Referring to fig. 9, 10 and 11, fig. 9 is an exploded schematic view of a three-dimensional structure according to an embodiment of the present invention; the structure of the housing, the conductive assembly, the metal spring, the limiting body and the auxiliary device are shown. Fig. 10 is a perspective view of the assembly of fig. 9. FIG. 11 is a cross-sectional view of FIG. 10; showing the structural cooperation of the body, the limiting body, the assistor and the lead. The lower region of the housing 90 is provided with a caulking groove portion 98 communicating with the cavity 91 for assisting in positioning the assist device 40 (or the assist device base region 45). The side of the first region 11 of the body 10 is formed with a caulking groove 16, and the auxiliary 40 (or the first waist portion 41 and the second waist portion 42 of the auxiliary) is combined and allowed to extend toward the reference axis X (or the upper direction of the vertical wire 80 toward the housing 90) so that the

finger portions

43 and 44 are respectively pressed or buckled on the restricting body 20.

Fig. 9 shows that the limiting body 20 is provided with engaging

portions

27a, 28a for engaging the

fingers

43, 44 of the auxiliary device 40. In one embodiment, the

engagement portions

27a, 28a form a groove or hole-like structure and are disposed in the

bent portions

27, 28 and/or the areas of the first arm 21, the second arm 22, and the

free sections

23, 24 of the restricting body 20.

It is understood that the engaging

portions

27a and 28a are formed in a convex structure on the inner side of the first arm 21 and the inner side of the second arm 22. Thus, fig. 10 shows that the

scarf joints

27a, 28a can form a mechanism that prevents the wire tip 81 from moving up or cocking, and that the helper 40 assists in increasing the ability of the restraint body 20 to resiliently press against the wire 80; for example, fig. 11 shows the case.

FIG. 12 is an exploded perspective view of another embodiment of the present invention; the construction is disclosed in which the limiter body 20 and the body 10 form a two-piece assembly. The base 25 of the limiting body 20 can be combined with the body 10 (or the second region 12), so that the first arm 21 and the second arm 22 are respectively bent from the two ends of the base 25 along the Z-direction reference axis (or towards the insertion direction of the lead 80) to pass through the neck 15 of the body, and extend obliquely towards the opposite direction to define the structure of the mouth 26; and

bent portions

27, 28 are formed between the first arm 21, the second arm 22 and the

free sections

23, 24 of the regulating body 20, respectively. The

free sections

23 and 24 of the first and

second arms

21 and 22 are bent and extended in opposite directions to establish the configuration of the opening 29.

Referring to fig. 13, 14 and 15, fig. 13 is an exploded perspective view of another embodiment of the present invention; the structure of the housing, the conductive assembly body, the metal spring, the limiting body integrally formed on the body, and the elastic device is illustrated. Fig. 14 is a perspective structure combination diagram of fig. 13. FIG. 15 is a cross-sectional view of FIG. 14; showing the structural cooperation of the body, the limiting body, the elastic device and the lead. The shell 90 is provided with a positioning groove 90a communicated with the cavity 91 at the other end area opposite to the wire inlet hole 92; the positioning grooves 90a extend in the same direction of the Z-reference axis (or the insertion of the lead 80) for combining or fixing the body 10 (the first section 11).

Fig. 13 shows that the limiting body 20 integrally connects at least the first arm 21 (and/or the second arm 22) to the first zone 11 of the body 10 in the direction of the reference axis Z (or towards the insertion direction of the same wire 80); the first arm 21 (and/or the second arm 22) of the stopper 20 is bent in the direction of the Y-axis reference to form a base portion 25 connecting the first arm 21 and the second arm 22, thereby defining a mouth portion 26 having an opening 29. And a bent part 28 is formed between the second arm 22 (and/or the first arm 21) and the free section 24 (and/or the free section 23). The second arm free section 24 (and/or the first arm free section 23) is bent and extended in the direction outside the regulating body 20, and the opening 29 is directed in the direction of the Z-direction reference axis (or in the direction in which the lead 80 is inserted).

In the present embodiment, the elastic device 50 combined with the limiting body 20 has a structure similar to or the same as that of the limiting body 20. The elastic means 50 have at least a first arm 51 (and/or a second arm 52) extending in the direction of the Z-reference axis (or towards the same insertion direction of the wire 80); the first arm 51 (and/or the second arm 52) of the elastic device is bent in the direction of the reference axis in the Y direction to form a base portion 55 connecting the first arm 51 and the second arm 52, thereby defining a mouth portion 56 having an opening 59.

Also shown in fig. 13 is a bend 58 formed between the second arm 52 (and/or the first arm 51) and the free segment 54 (and/or the free segment 53) of the spring 50. Furthermore, the second arm free section 54 (and/or the first arm free section 53) is bent and extended toward the outside of the elastic device 50, and the opening 59 is oriented toward the direction of the Z-direction reference axis (or toward the insertion direction of the lead 80), so as to allow the elastic device 50 to surround or overlap a partial region or the entire region of the limiter 20; for example, the situation illustrated in fig. 14 and 15.

Fig. 14 and 15 also show the condition that the wire end 81 is clamped and fixed by the second arm bending part 28 of the restricting body 20 and the first arm 21 and the elastic device 50 after the wire 80 is inserted into the housing cavity 91 and the conductive assembly from the wire inlet hole 92. And, the wire end 81 is captured within the mouth 26 of the restraint body 20, and the mechanism for holding the wire 80 in contact with at least the first region 11 of the body 10 and the restraint body 20 (or the first arm 21) is maintained.

Referring to fig. 16, 17 and 18, fig. 16 is an exploded schematic view of a three-dimensional structure according to another embodiment of the present invention; the body 20 and body 10 are shown as forming a two-piece assembly. Fig. 17 is a perspective view of fig. 16. FIG. 18 is a cross-sectional view of FIG. 17; showing the structural cooperation of the body, the limiting body, the elastic device and the lead. The body 10 (first region 11) is bent towards the reference axis in the X direction to form a connecting part 17; the connecting portion 17 may be formed by bonding, riveting, welding, or locking …, and is combined with the limiting body 20 (the first arm 21 and/or the second arm 22).

Fig. 17 and 18 also show the situation that the wire end 81 is clamped and fixed by the second arm bending part 28 of the limiting body 20 and the first arm 21 and the elastic device 50 after the wire 80 is inserted into the housing cavity 91 and the conductive component from the wire inlet hole 92. The lead wire end 81 is retained in the mouth 26 of the stopper 20, and the lead wire 80 is held in contact with at least the first region 11 of the main body 10, the stopper 20 (or the second arm bent portion 28), and the coupling portion 17 of the main body 10.

Referring to fig. 19 and 20, fig. 19 is an exploded perspective view of another embodiment of the present invention; the limiting body 20 is integrally formed on the main body 10, and the α -type metal spring 30 is used in combination. Fig. 20 is a perspective view of the assembly of fig. 19. In the present embodiment, the metal dome 30 has an "α" shape, and includes a first section 31, a second section 32, and an arch 33 connected between the first section 31 and the second section 32. The first section 31 has a head 34; the second section 32 defines an opening 39 near or adjacent the trailing end 35 of the second section 32. And the head end 34 can be pressed on the body 10 (or the first area 11) to match the elastic action of the first section 31 and the bow part 33, so that the body 10 (or the first area 11) closes the opening 39.

When a person presses the metal elastic sheet 30, the opening 39 can be released, so that the lead 80 enters the body 10 from the opening 39 and is clamped and fixed by the limiting body 20 of the combined elastic device 50; after the force applied by the external pressing metal elastic sheet 30 disappears, the second end 32 and/or the opening 39 is/are reversed to form a shape of pressing and fixing the lead 80 together with the first area 11 (and/or the ridge 13) of the body 10; for example, the situation illustrated in fig. 20.

Referring to fig. 21 and 22, fig. 21 is an exploded perspective view of another embodiment of the present invention; the structure of the limiting body 20 and the main body 10 formed as a two-piece assembly combined with the α -type metal spring 30 is shown. Fig. 22 is a perspective view of the assembly of fig. 21. In the present example, the body 10 (or the first region 11) is bent towards the reference axis X to form a joint 17; the connecting portion 17 may be formed by bonding, riveting, welding, or locking …, and is combined with the limiting body 20 (the first arm 21 and/or the second arm 22). The restricting body 20 of the combined elastic device 50 cooperates with the opening 39 of the α -type metal elastic sheet 30 and the first region 11 of the body 10 (and/or the ridge 13 of the first region 11) to form a configuration of commonly clamping and fixing the conductive wire 80.

It is understood that the ㄥ -type and α -type metal elastic sheets 30 in the above embodiments can be used in combination with the restricting body 20, the auxiliary device 40 or the elastic device 50 of the conductive element according to the actual requirements.

In summary, the conductive element structure of the electrical connection device provided by the present invention has at least one of the following advantages:

1. the main body 10, the restricting body 20, the metal spring 30, the auxiliary device 40, the elastic device 50 and the related components of the conductive assembly have been redesigned. For example, the first zone 11 or the second zone 12 of the body 10 is combined with the limiter 20; the limiter 20 (and/or the elastic device 50) is disposed on the first arm 21 (and/or 51), the second arm 22 (and/or 52), the free sections 23, 24 (and/or 53, 54), the bent sections 27, 28 (and/or 57, 58), so that the limiter 20 (and/or the elastic device 50) forms the mouth 26 (and/or 56), the opening 29 (and/or 59), and the limiter 20 forms the wings 21a, 22 a; and, the restricting body 20 is combined with the auxiliary 40 or the elastic device 50; the auxiliary device 40 includes the first waist portion 41, the second waist portion 42, the base portion 45 and the

finger portions

43, 44, which are different from the prior art, and the conductive structure and combination relationship of the electrical connection terminals or the switch wiring device in the prior art are changed, so that the use and operation modes of the auxiliary device are different from the prior art.

2. Under the condition of not increasing the thickness of the conductive component and/or the metal elastic sheet 30, the matching structure or the limiting body 20 thereof provides a better mechanism for pressing the lead 80 and elastic deformation amount than the prior art, and keeps the lead 80 and the conductive component to form multi-part contact; moreover, the conductive assembly is allowed to be applied to the occasions of pivoting large-wire-diameter leads of an electric connecting terminal or a switch wiring device; and the situations that the existing structure is insufficient in force for pressing the wire, the pressing is not stable, the wire is easy to shift and shake (or is touched by people carelessly), and poor contact safety is caused are improved.

3. In particular, the main body 10 is combined with the structure matching type of the limiting body 20, the auxiliary device 40 or the elastic device 50, and provides a conductive assembly structure capable of assisting the metal elastic sheet 30 to press the conductive wire 80; the auxiliary device 40 and the elastic device 50 are allowed to be used interchangeably, and the restricting body 20 is combined. Therefore, the situation of tilting (or leaving the conductive bracket) of the tail end of the wire due to the lever action in the prior art relatively affects the conductive contact area and the conductive efficiency, and the obvious improvement is obtained.

Therefore, the conductive component structure of the electrical wiring device provided by the invention has a spatial form different from that of the prior art and has incomparable advantages compared with the prior art, thereby having outstanding substantive characteristics and remarkable progress.

It should be noted, however, that the above description is only an example of the present invention, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications made in the claims of the present invention are intended to be covered by the present invention.

Claims

1. A conductive assembly structure of an electrical wiring device is provided, wherein the conductive assembly is defined with an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which is the same as the incoming line direction, wherein the X-direction reference axis and the Y-direction reference axis are mutually perpendicular; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

a body, which is made of conductive material into a plate-shaped body structure and is provided with at least one first area; the body is provided with a second area connected with the first area; the first region of the body is parallel to a Z-direction reference axis;

the limiting body is arranged on the body and is provided with a base part, a first arm connected with the base part, a second arm and a free section connected with the first arm and the second arm;

the limiting body is arranged at the position of the first area; the limiting body is made of metal materials, is integrally formed on the body and is combined with one of the limiting body and the body;

the first arm and the second arm of the limiting body extend from the base in a bending way to define a mouth part and an opening structure;

the first arm and the second arm of the limiting body are bent from the base part and gradually and obliquely extend along the X direction to the reference axis direction and the opposite direction to define a mouth part structure with a triangular outline; bending parts are respectively formed among the first arm, the second arm and the free section, so that the free section of the first arm and the free section of the second arm are bent and extended in opposite directions, and the opening faces to the direction of the reference axis in the X direction;

the limiting body is combined with one of an auxiliary device and an elastic device so as to increase the elastic clamping force of the limiting body.

2. The structure of conductive elements of an electrical connection device of claim 1, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

the shell is provided with a positioning part; one of the shell and the second area of the body is provided with a positioning hole;

the metal elastic sheet is in an ㄥ -shaped structure and comprises a first section with a head end, a second section with a tail end and an arch part connected between the first section and the second section.

3. The structure of conductive elements of an electrical connection device of claim 1, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

the shell is provided with at least one of a groove part and a groove embedding part; one of the shell and the second area of the body is provided with a positioning hole;

4. The structure of conductive elements of an electrical connection device of claim 1, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

the shell is provided with a positioning groove communicated with the cavity in the area of the other end opposite to the wire inlet hole; the positioning grooves extend along the same direction of the Z-direction reference shaft;

the metal elastic sheet is of an alpha-shaped structure and comprises a first section with a head end, a second section with a tail end and an arch part connected between the first section and the second section; the second section is provided with an opening; and the head end may be crimped onto the body.

5. The structure of the conductive element of an electrical wiring device according to any one of claims 1 or 2, wherein the second region of the body is vertically connected to the first region; one end of the first area can be provided with a convex ridge; and

the limiting body enables the first arm and the second arm to respectively protrude a wing part along the direction of the Z-direction reference axis and expand towards the external direction of the limiting body;

the limiting body is combined with the assistor, the assistor is of a U-shaped structure and is provided with a base region in a bent arc shape, a first waist part and a second waist part which are connected with the base region, and a finger part which is connected with the first waist part and the second waist part, so that a space with an opening is defined together, and the assistor has an elastic clamping function.

6. The structure of the conductive element of the electrical wiring device as claimed in claim 5, wherein the first and second waist portions extend from two ends of the base region along an X-direction reference axis and are bent toward a Y-direction reference axis to form the finger portion; and bringing the finger portion into contact with the first arm bent portion and the second arm bent portion of the restricting body.

7. The structure of the conductive element of an electrical wiring device according to any one of claims 1 or 2, wherein the second region of the body is vertically connected to the first region; one end of the first area can be provided with a convex ridge; and

the limiting body is combined with the elastic device, and the elastic device is provided with a base part, a first arm connected with the base part, a second arm and a free section connected with the first arm and the second arm; the first arm and the second arm of the elastic device respectively extend in opposite directions in a gradually inclined manner to define an opening structure with an opening.

8. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

the first arm and the second arm of the limiting body extend from the base in a bending way to define a mouth part and an opening structure; and

the limiting body is combined with an elastic device to increase the elastic clamping acting force of the limiting body;

the first area of the body is parallel to a Z-direction reference axis, and the second area of the body is vertically connected with the first area; one end of the first area can be provided with a convex ridge part, and the second area is provided with a neck part;

the limiting body is arranged on the neck part of the second area; the limiting body is made of metal materials, is integrally formed on the body and is combined with one of the limiting body and the body;

the first arm and the second arm of the limiting body are bent from the base part, pass through the neck part of the body along the Z-direction reference axis direction, and gradually extend obliquely towards the opposite direction to define the mouth structure of the limiting body; and

a bending part is respectively formed between the first arm and the free section of the limiting body and between the second arm and the free section, so that the free section of the first arm and the free section of the second arm are bent and extended in opposite directions, and the opening faces to the direction of the Z-direction reference axis;

the limiting body is combined with the elastic device, and the elastic device is provided with a base part, a first arm connected with the base part, a second arm and a free section connected with the first arm and the second arm; the first arm and the second arm of the elastic device are respectively bent from two ends of the base along a Z-direction reference axis and gradually extend obliquely towards opposite directions to define a mouth structure with a triangular outline.

9. The structure of conductive elements of an electrical connection device of claim 8, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

10. The structure of the electrical connection device as claimed in claim 8 or 9, wherein a bending portion is formed between the first arm, the second arm and the free portion of the spring, so that the free portion of the first arm and the free portion of the second arm of the spring are bent and extended in opposite directions to form an opening structure in a Z-direction, so that the spring overlaps at least a partial region of the restriction member.

11. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

a body, which is made of conductive material into a plate-shaped body structure and is provided with at least one first area; the body is provided with a second area connected with the first area;

the limiting body is combined with an auxiliary device to increase the elastic clamping acting force of the limiting body;

12. The structure of conductive elements of an electrical connection device of claim 11, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

13. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

the first area of the body is parallel to a Z-direction reference axis, and the second area of the body is vertically connected with the first area; one end of the first area can form a convex ridge part and a caulking groove, and the second area is provided with a neck part;

the limiting body is arranged at the neck position of the second area; the limiting body is made of metal materials, is integrally formed on the body and is combined with one of the limiting body and the body;

the first arm and the second arm of the limiting body are bent from the base part and gradually and obliquely extend along the direction of the reference axis in the Z direction and towards the opposite direction to define a mouth part structure with a triangular outline; a bending part is respectively formed among the first arm, the second arm and the free section, so that the free section of the first arm and the free section of the second arm are bent and extended in opposite directions, and the opening faces to the direction of the Z-direction reference axis;

14. The structure of conductive elements of an electrical connection device of claim 13, wherein said housing has a wire entry hole disposed along the direction of the Z-reference axis and communicating with said chamber;

15. The structure of conductive elements of an electrical connection device as claimed in claim 13 or 14, wherein the restraining body is provided with an engaging portion for engaging the finger portion of the auxiliary device; the engagement portion is formed in one of a groove-shaped structure and a hole-shaped structure, and is disposed in a region of at least one of the bent portion, the first arm, the second arm, and the free section of the stopper.

16. The electrical connector assembly of claim 15, wherein the engaging portion forms a protrusion structure on the inner edge of the first arm and the inner edge of the second arm.

17. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

18. The structure of conductive elements of an electrical connection device of claim 17, wherein said housing has a wire entry hole disposed along the Z-reference axis and communicating with said chamber;

19. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

the first area of the body is parallel to the Z-direction reference axis, and one end of the first area can form a convex ridge; the limiting body is made of metal materials, is integrally formed on the body and is combined with one of the limiting body and the body;

the limiting body at least enables the first arm and the second arm to extend along the direction of a Z-direction reference axis, and at least one of the first arm and the second arm of the limiting body is bent along the direction of a Y-direction reference axis to form a base part connecting the first arm and the second arm, so that an outlet part and an opening facing the Z-direction reference axis are defined together;

a bending part is formed between the first arm and the free section and between the second arm and the free section, so that at least one of the free section of the first arm and the free section of the second arm is bent and extended towards the outside of the limiting body; and

the limiting body is combined with the elastic device; the elastic device is provided with a first arm, a second arm and a base part connecting the first arm and the second arm; the elastic device at least enables the first arm and the second arm to extend along the direction of the Z-direction reference axis, and enables at least one of the first arm and the second arm of the elastic device to be bent along the direction of the Y-direction reference axis to form the base part connecting the first arm and the second arm, so as to define an outlet part and an opening structure facing the Z-direction reference axis.

20. The structure of conductive elements of an electrical connection device of claim 19, wherein said housing has a wire entry hole disposed along the Z-reference axis and communicating with said chamber;

21. The electrical connection apparatus as claimed in claim 19 or 20, wherein a bent portion is formed between at least one of the first arm and the free section and the second arm and the free section of the spring;

the bending part of the elastic device bends and extends at least one of the first arm free section and the second arm free section towards the external direction of the elastic device, and allows the elastic device to overlap at least partial area of the limiting body.

22. The structure of the conductive element of the electrical connection device as claimed in claim 19 or 20, wherein the first region of the body is bent toward the reference axis in the X direction to form a connection portion connecting the restraining member.

23. The electrical connector assembly of claim 21, wherein the first region of the body is bent toward the reference axis to form a joint portion connecting the restraining member.

24. A conductive assembly structure of an electrical wiring device is characterized in that the conductive assembly defines an X-direction reference axis, a Y-direction reference axis and a Z-direction reference axis which are mutually perpendicular and are the same as a wiring direction; the conductive assembly is matched with a metal elastic sheet and arranged in a cavity of a shell made of insulating materials; it is characterized by comprising:

25. The structure of conductive elements of an electrical connection device of claim 24, wherein said housing has a wire entry hole disposed along the Z-reference axis and communicating with said chamber;