The present invention relates generally to a conductive component structure of conductive wire connection device, and more particularly to a conductive component having a restriction body for guiding the conductive wire and helping in securing the conductive wire.
A conventional terminal device or switch wire connection device has an insulation case (generally made of plastic material), a metal component (or so-called electrical conductive component) and a leaf spring conductor (or so-called metal leaf spring). The metal component and the leaf spring conductor are enclosed in the insulation case to press and electrically connect with or release a conductive wire plugged in the terminal device.
Multiple conventional electrical connection terminals can be latched with a grounding rail (or conductive rail) in a row to set up a common grounding device of an electrical apparatus or mechanical equipment for conducting out the residual voltage or static of the machine. For example, US 2013/0143433 A1 “connection terminal”, US 2014/0127932 A1 “electrical connection terminal” and U.S. Pat. No. 5,362,259 “ground conductor terminal” disclose typical examples.
Such electrical connection terminal or switch wire connection device generally includes an insulation case having a wire plug-in hole for the conductive wire to plug into the interior of the case. The case defines a chamber in which a conductive support (or conductive component) and a metal leaf spring are mounted. The metal leaf spring and the conductive component serve to press the conductive wire plugged into the case and contact or electrically connect with the conductive wire. Unless an operator uses a tool to extend into the case and push/press the metal leaf spring, the conductive wire cannot be released from the electrical connection or contact with the metal leaf spring and the conductive component.
The assembling structure of the conventional electrical connection terminal or switch wire connection device has some shortcomings in structure and operation application. For example, in practical wire layout operation, after a conductive wire is plugged into the case to connect with the conductive component, an operator will bend the conductive wire outside the case to perform wire trimming operation in accordance with the site space condition or wire layout path. The wire trimming operation is performed because when the metal leaf spring presses the conductive wire, a leverage effect is often produced to cause the rear end of the conductive wire to warp up (or leave the conductive component). As a result, the contact area between the conductive wire and the conductive support (or conductive component) is reduced to increase the impedance and raise the temperature of the conductive support. In case the temperature of the conductive support exceeds the heat tolerance of the plastic insulation case, the case will be damaged to affect the security.
In order to improve the shortcomings of insufficient pressing force and electro-conductive insecurity or efficiency, a conventional electrical connection terminal has been disclosed, which additionally includes a leaf spring arranged behind the metal leaf spring to help in pressing the conductive wire.
However, as well known by those who are skilled in this field, such electrical connection terminal is simply applicable to specific conductive wire or relatively small-diameter conductive wire to provide sufficient pressing force. When such conventional electrical connection terminal or switch wire connection device is connected with a large-diameter conductive wire, it often takes place that the pressing force applied by the metal leaf spring and the conductive component to the conductive wire is insufficient, the conductive wire can be hardly securely pressed, the rear end of the conductive wire is warped up and the conductive wire is apt to rotate, deflect or swing due to incautious touch of an operator to lead to poor contact and insecurity. This is not what we expect.
Another conventional electrical connection terminal has been disclosed, which includes a leaf spring and a steel leaf spring overlapped with the leaf spring to increase the pressing force for the conductive wire.
To speak representatively, the above reveals some shortcomings existing in the conventional wire connection terminal or switch wire connection device in structure assembly design and application. In case the structure assembly of the conductive component and the metal leaf spring or leaf spring conductor is redesigned to be different from the conventional wire connection terminal, the use form of the wire connection terminal can be changed to practically widen the application range thereof.
It is found that the structural form of an optimal conductive component must overcome or improve the aforesaid shortcomings of the conventional wire connection terminal and include several design considerations as follows:
It is therefore a primary object of the present invention to provide a conductive component structure of conductive wire connection device, which is more securely assembled with the conductive wire to enhance the electro-conduction performance. The conductive component includes a main body in the form of a plate body and a restriction body connected on the main body. The restriction body has a base section, a first arm and a second arm connected with the base section and free sections connected with the first and second arms, whereby the restriction body can provide elastic holding effect. When the conductive wire is plugged into the case into contact with the conductive component, the rear end of the conductive wire is at least securely pressed between the first and second arms of the restriction body. The conductive component improves the shortcomings of the conventional structure that the conductive wire is apt to deflect or swing due to external force to lead to unstable contact and insecurity and affect the electro-conduction efficiency.
In the above conductive component structure of conductive wire connection device, the first arm and the second arm are respectively bent from two sides of the base section to obliquely extend toward each other to define a mouth section. In addition, a bent section is formed between each of the first and second arms and each of the free sections of the first and second arms. The free section of the first arm and the free section of the second arm are bent to extend away from each other to form an opening structure, whereby the restriction body can be elastically expanded to hold different diameters of conductive wires.
In the above conductive component structure of conductive wire connection device, the free section of the first arm and the free section of the second arm of the restriction body extend toward each other and connect with each other to form a connection section so as to together define a mouth section in a closed form. The first and second arms respectively have caved sections, which increase the elastic deformation amount of the first and second arms, whereby the first and second arms are uneasy to permanently deform and can more securely press and restrict the conductive wire.
The present invention can be best understood through the following description and accompanying drawings, wherein:
Please refer to
Basically, the case 90 defines a chamber 91, in which the main body 10, the restriction body 20 and the metal leaf spring 30 of the conductive component are mounted. The case 90 has a wire plug-in hole 92 in communication with the chamber 91. The conductive wire 80 can be plugged through the wire plug-in hole 92 into the chamber 91 of the case 90 and the conductive component to electrically connect therewith.
The upper section, lower section, outer side and inner side mentioned hereinafter are recited with the direction of the drawings as the reference direction.
As shown in the drawings, the main body 10 is selectively made of an electro-conductive material (such as copper, brass or the like material) in the form of a plate body. The main body 10 has a first section 11 in parallel to the Z-direction reference axis and a second section 12 (perpendicularly) connected with the first section 11 (and extending along X-direction reference axis). The second section 12 is assembled and located in a locating slot 90a of the case 90. One end of the first section 11 is formed with a raised ridge section 13 as a load section for helping in pressing the conductive wire 80.
In a preferred embodiment, the restriction body 20 is integrally formed or assembled on the main body 10. The restriction body 20 is selectively made of an electro-conductive (metal) material and disposed on the first section 11 of the main body 10. The restriction body 20 has a base section 25, a first arm 21 and a second arm 22 connected with the base section 25 and free sections 23, 24 connected with the first and second arms 21, 22, which together provide elastic holding effect for the restriction body 20.
To speak more specifically, the first and second arms 21, 22 are respectively bent from two sides of the base section 25 to gradually obliquely extend toward each other along the X-direction reference axis (or in a direction normal to the plug-in direction of the conductive wire 80). The first and second arms 21, 22 define a mouth section 26 with a triangular configuration. A bent section 27, 28 is formed between each of the first and second arms 21, 22 and the free sections 23, 24, whereby the free section 23 of the first arm 21 and the free section 24 of the second arm 22 are bent to extend away from each other so as to define an opening 29, whereby the restriction body 20 can be elastically expanded to hold different diameters of conductive wires 80. As shown in the drawings, the opening 29 is open to the upper side (or along the X-direction reference axis).
In this embodiment, the metal leaf spring 30 is a substantially V-shaped structure including a first section 31, a second section 32 and a bight section 33 connected between the first and second sections 31, 32. The first section 31 has a head end 34 secured in a locating hole 14 of the case 90 or the main body 10. The bight section 33 is assembled on a stake 93 of the case 90 or the chamber 91, whereby the tail end 35 of the second section 32 can be elastically biased to press the conductive wire 80. As shown in the drawings, the locating hole 14 is disposed on the second section 12 of the main body.
Please refer to
It should be noted that when a relatively large-diameter conductive wire is plugged into the conductive component and/or the wire trimming operation is performed, the rear end 81 of the conductive wire may be warped up. At this time, the rear end 81 of the conductive wire will be pressed/restricted or detained in the mouth section 26 by the first and second arms 21, 22 to keep in contact with the conductive component. This obviously improves the shortcoming of the conventional electrical connection terminal that the rear end of the conductive wire is apt to warp up and leave the conductive component so that the contact area between the conductive wire and the conductive component is reduced and the impedance is increased to raise the temperature of the conductive component.
Please refer to
In this embodiment, the free sections 23, 24 of the restriction body 20 are formed with arched sections 23a, 24a. The inner sides of the arched sections 23a, 24a are recessed to together define an annular structure in communication with the opening 29 for surrounding and holding the conductive wire 80 and achieving better securing effect.
As shown in
Please refer to
In a preferred embodiment, the lateral sides of the second section 12 of the main body are formed with a neck section 15 for assembling with the restriction body 20 or permitting the first and second arms 21, 22 of the restriction body 20 to pass through and extend along the Z-direction reference axis (or toward the conductive wire 80).
Please refer to
Please refer to
It should be noted that the connection section 11c of the main body 10 (or the first section 11) and the connection section 25c of the restriction body 25 can be alternatively integrally connected with each other by means of welding, riveting, etc. Alternatively, the main body 10 can be integrally (bent) and formed with the restriction body 20.
In a preferred embodiment, (two ends) of the base section 25 of the restriction body 20 are bent along the X-direction reference axis to form a first connection wall 25a and a second connection wall 25b, which together define a mouth section 26. The first and second connection walls 25a, 25b respectively extend along the Z-direction reference axis (or in the plug-in direction of the conductive wire 80) to form a first arm 21 and a second arm 22 and free sections 23, 24 connected with the first and second arms 21, 22.
As shown in the drawings, the first and second arms 21, 22 of the restriction body respectively gradually obliquely extend (toward each other) along the Z-direction reference axis. A bent section 27, 28 is formed between each of the first and second arms 21, 22 and the free sections 23, 24 of the restriction body, whereby the free section 23 of the first arm 21 and the free section 24 of the second arm 22 are bent to extend away from each other so as to define an opening 29 open to the main body 10 or the second section 12 (along the Z-direction reference axis).
Please refer to
Please refer to
In this embodiment, (two ends) of the base section 25 of the restriction body 20 are bent along the X-direction reference axis to form a first connection wall 25a and a second connection wall 25b, which together define a mouth section 26. The first and second connection walls 25a, 25b respectively extend along the Z-direction reference axis or in the plug-in direction of the conductive wire 80 to form a first arm 21 and a second arm 22 and free sections 23, 24 connected with the first and second arms 21, 22.
As shown in the drawings, the first and second arms 21, 22 of the restriction body respectively gradually obliquely extend (toward each other) along the Z-direction reference axis. A bent section 27, 28 is formed between each of the first and second arms 21, 22 and the free sections 23, 24 of the restriction body, whereby the free section 23 of the first arm 21 and the free section 24 of the second arm 22 are bent to extend away from each other so as to define an opening 29 open along the Z-direction reference axis or in the plug-in direction of the conductive wire 80.
In this embodiment, a fixing section 90b is disposed in the case 90 or the chamber 91. The fixing section 90b is a <-shaped block body having a first block body 90c and a second block body 90d connected with the first block body 90c. The second block body 90d obliquely extends toward the lower side of the case 90. A gap 90e is formed between the first block body 90c and the case 90.
As shown in
As shown in
Please refer to
In this embodiment, the inclined section 17 and the first and second bridge sections 18, 19 are assembled on the inclined sink section 99 of the case 90. Moreover, the free section 23 of the first arm 21 and the free section 24 of the second arm 22 of the restriction body are bent to extend toward each other and connect with each other to form a connection section 20a so as to together define a mouth section 26 in a closed form.
As shown in the drawings, the connection section 20a of the restriction body 20 contacts or latches with the second bridge section 19 of the main body, while the base section 25 contacts or latches with the first bridge section 18 of the main body. The wing sections 21a, 22a have the form of arched blade structures protruding along the X-direction reference axis and the Z-direction reference axis. In addition, the first and second arms 21, 22 (and/or the wing sections 21a, 22a) respectively have caved sections 21b, 22b, which are arched to extend toward the mouth section 26 so as to increase the length of the first and second arms 21, 22 and the elastic deformation amount thereof, (whereby the first and second arms 21, 22 are uneasy to permanently deform). Such structure is applicable to different specifications and sizes of conductive wires 80 to more securely press and restrict the conductive wires 80.
As shown in
To speak representatively, in comparison with the conventional wire connection terminal, the conductive component structure of conductive wire connection device of the present invention has the following advantages:
In conclusion, the conductive component structure of conductive wire connection device of the present invention is different from the conventional wire connection terminal in space form and is advantageous over the conventional wire connection terminal. The conductive component structure of electrical wire connection device of the present invention is effective, greatly advanced and inventive.
The above embodiments are only used to illustrate the present invention, not intended to limit the scope thereof. Many modifications of the above embodiments can be made without departing from the spirit of the present invention.
Number | Date | Country | Kind |
---|---|---|---|
107109100 | Mar 2018 | TW | national |