The present invention relates generally to a conductive component structure of wire connection terminal, 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 wire pressing terminal 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.
Such electrical connection terminal devices include two types. The first type of electrical connection terminal device is inserted on a circuit board such as printed circuit board (PCB). The second type of electrical connection terminal device is 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.
Such electrical connection terminal (or rail-type electrical connection terminal) 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 metal leaf spring. 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 has some shortcomings in manufacturing and operation application. For example, when a large-diameter conductive wire is plugged into the electrical connection terminal, it often takes place that the pressing force applied by the metal leaf spring and the conductive component to the conductive wire is insufficient so that the conductive wire can be hardly securely pressed and the conductive wire is apt to deflect or swing due to incautious touch of an operator. This will lead to poor contact and insecurity.
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 employs a screw to lock and restrict the conductive wire or uses double-layer metal leaf spring or thickened metal leaf spring and conductive component to increase the pressing force for the conductive wire.
However, as well known by those who are skilled in this field, it is quite troublesome and time-costing to use a screw to lock and restrict or release the conductive wire. Also, the increase of the thickness of the metal leaf spring and the conductive component will lead to increase of the manufacturing cost and it is laborious to operate the thickened metal leaf spring and conductive component. This is not what we expect.
To speak representatively, the above reveals some shortcomings existing in the conventional wire connection terminal 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 terminal device or 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 wire connection terminal, which is manufactured at lower cost and more securely assembled with the conductive wire. 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 defines a mouth section and has an oblique wall connected with the mouth section. When the conductive wire is plugged into the case into contact with the conductive component, the restriction body guides the conductive wire and the rear end of the conductive wire is restricted and secured by the oblique wall. 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-conductive efficiency.
In the above conductive component structure of wire connection terminal, the oblique wall of the restriction body includes two lateral oblique walls and an upper oblique wall. The two lateral oblique walls obliquely extend from the mouth section in a direction away from the mouth section to respectively form an (elastic) free end. The free ends are gradually converged to get closer to each other to form a holding opening. The upper oblique wall obliquely extends from the mouth section in a direction away from the mouth section and toward the main body to form a rear end section. Therefore, after the conductive wire passes through the mouth section, the conductive wire is guided and elastically securely pressed and restricted by the lateral oblique walls (or the free ends) and/or the upper oblique wall (or the rear end sections), whereby the conductive component helps the metal leaf spring in pressing and restricting the conductive wire.
In the above conductive component structure of wire connection terminal, the oblique wall of the restriction body has a first section connected with the main body and a second section obliquely extending in a direction away from the main body. At least two sides of the second section are arched toward the main body to form two arched edges, whereby the second section is formed as a structure with a substantially C-shaped cross section to define the mouth section. Therefore, after the conductive wire passes through the mouth section, the conductive wire is guided by the oblique wall (or the first and second sections) and elastically securely pressed and restricted by the first section, whereby the conductive component helps the metal leaf spring in pressing and restricting the conductive wire.
In the above conductive component structure of wire connection terminal, the metal leaf spring includes a first leaf spring and a second leaf spring. Each of the first and second leaf springs having a head section, a bight section connected with the head section and a tail section connected with the bight section. The tail sections of the first and second leaf springs are respectively formed with a bent section. When the metal leaf spring is mounted in the case of the terminal, the head section and bight section of the first leaf spring are overlapped with or overlaid on the head section and bight section of the second leaf spring, while the tail section of the first leaf spring is separated from the tail section of the second leaf spring. Therefore, the tail section of the first leaf spring and the tail section of the second leaf spring respectively form a pressing point against the conductive wire, whereby the oblique wall of the restriction body cooperates with the first and second leaf springs to press and restrict the conductive wire to set up a multipoint system for fixing the conductive wire. Accordingly, the possibility of deflection or swing of the conductive wire due to collision of external force or assembling process is minimized.
The present invention can be best understood through the following description and accompanying drawings, wherein:
Please refer to
The upper section, upper side, lower section, lower side, lateral side and bottom side mentioned hereinafter are recited with the direction of the drawings as the reference direction.
In a preferred embodiment, the main body 10 is selectively made of an electro-conductive material in the form of a plate body. The restriction body 20 is selectively made of an electro-conductive material (or metal material) with hardness greater than the hardness of the main body 10. The restriction body 20 can be integrally formed or assembled/disposed on the main body 10. Two end sections of the main body 10 are formed with bent edges 13 upward extending from the lateral sides 11, whereby the two end sections of the main body 10 are formed as a structure with a U-shaped cross section. The bend edges 13 or the structure with the U-shaped cross section serve to help in guiding a conductive wire 50 into the conductive component (as shown in
Also, when the conductive wire 50 is plugged into the case 40, the conductive component (or the restriction body 20) serves to prevent the conductive wire 50 from thrusting, cutting or scraping the case 40.
As shown in the drawings, the restriction body 20 includes a (reverse U-shaped) door plate 21 and an oblique wall 22. The door plate 21 has leg sections 29 securely connected with the lateral sides 11 of the main body 10 (or with the insertion notches 12 of the lateral sides 11) to define a mouth section 23. The oblique wall 22 is connected with the door plate 21 (or the mouth section 23).
As shown in
In this embodiment, the metal leaf spring 30 includes a first leaf spring 31 and a second leaf spring 32. Each of the first and second leaf springs 31, 32 has a head section 31a, 32a, a bight section 31b, 32b connected with the head section 31a, 32a and a tail section 31c, 32c connected with the bight section 31b, 32b. The length of the tail section 31c of the first leaf spring 31 is smaller than the length of the tail section 32c of the second leaf spring 32. The tail sections 31c, 32c of the first and second leaf springs 31, 32 are respectively formed with a bent section 31d, 32d.
It should be noted that the contained angle of the bent section 31d of the tail section 31c of the first leaf spring 31 can be equal to or different from the contained angle of the bent section 32d of the tail section 32c of the second leaf spring 32 so as to control or adjust the position where the tail sections 31c, 32c press and restrict the conductive wire 50.
Please now refer to
As shown in the drawings, the tail section 32c of the second leaf spring 32 and/or the tail section 31c of the first leaf spring 31 can partially extend into the restriction body 20. This helps in positioning the metal leaf spring 30 to move in the right path.
As shown in
As shown in the drawings, the tail section 31c of the first leaf spring 31 and the tail section 32c of the second leaf spring 32 can respectively form a pressing point against the conductive wire 50. The oblique wall 22 of the restriction body 20 cooperatively presses and restricts the conductive wire 50, whereby a multipoint system for fixing the conductive wire 50 is set up. Accordingly, the possibility of deflection or swing of the conductive wire due to collision of external force or assembling process is minimized.
In some applications, after the conductive wire 50 passes through the mouth section 23, the rear end of the conductive wire 50 will be elastically securely pressed and restricted by the holding opening 26 defined by the lateral oblique walls 24.
Please now refer to
In this embodiment, the restriction body 20 and the main body 10 are selectively made of the same electro-conductive material to increase the contact area between the conductive component and the conductive wire 50 and enhance the electro-conductive efficiency. The restrict ion body 20 includes two oblique walls 22. Abase section 27 is connected between the first sections 22a of the two oblique walls 22. The base section 27 is overlaid on the main body 10.
As shown in
Please now refer to
As shown in
In this embodiment, the conductive component has two restriction bodies 20. Therefore, a base section 27 is connected between the rear end sections 25a of the upper oblique walls 25 of the two restriction bodies 20. The base section 27 is overlaid on the main body 10. The upper oblique walls 25, the base section 27 and the main body 10 are selectively made of the same electro-conductive material to increase the contact area between the conductive component and the conductive wire 50 and enhance the electro-conductive efficiency. The door plates 21 and the lateral oblique walls 24 of the restriction bodies 20 are selectively made of a material with hardness greater than the hardness of the main body 10.
As shown in
As shown in the drawings, the tail section 31c of the first leaf spring 31 and the tail section 32c of the second leaf spring 32 can respectively form a pressing point against the conductive wire 50. The oblique wall 22 of the restriction body 20 and/or the holding opening 26 cooperatively presses and restricts the conductive wire 50, whereby a multipoint system for fixing the conductive wire 50 is set up.
Please now refer to
As shown in
In this embodiment, the conductive component has two restriction bodies 20. Therefore, a base section 27 is connected between the rear end sections 25a of the upper oblique walls 25 of the two restriction bodies 20. The base section 27 is integrally formed on the main body 10 (or formed by means of bending the main body 10). The base section 27 is overlaid on the main body 10. The restriction bodies 20, the base section 27 and the main body 10 are selectively made of the same electro-conductive material to increase the contact area between the conductive component and the conductive wire 50 and enhance the electro-conductive efficiency.
As shown in
To speak representatively, in comparison with the conventional wire connection terminal, the conductive component structure of the wire connection terminal of the present invention has the following advantages:
In conclusion, the conductive component structure of the wire connection terminal of the present invention is different from the conventional terminal device in space form and is advantageous over the conventional wire connection terminal. The conductive component structure of the wire connection terminal of the present invention is 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 |
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106115117 | May 2017 | TW | national |