The present invention relates generally to a conductive component structure for 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 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 has some shortcomings in structure 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 rotate, 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 for wire connection terminal, which has higher electro-conductive performance and is more securely assembled with the conductive wire. The conductive component is mounted in the insulation case of the terminal. 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 bow section connected with the base section and a free section connected with the bow section, which together provide elastic effect for the restriction body. 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 securely pressed and restricted between the main body and the restriction body to improve the shortcomings of the conventional structure that the conductive wire is apt to rotate, deflect or swing due to external force to lead to unstable contact and insecurity and affect electro-conductive efficiency.
In the above conductive component structure for wire connection terminal, the restriction body is provided with an elastic body for enhancing the action force of the restriction body for elastically pressing and restricting the conductive wire so as to minimize the possibility of deformation of the restriction body. The elastic body is a ring-shaped body or a substantially Ω-shaped body or an elastic plate body.
In the above conductive component structure for wire connection terminal, an arched depression (directed to the main body) is formed on the restriction body between the bow section and the free section. A retarding section is disposed in the depression, whereby when the conductive wire is plugged in, the retarding section can prevent the conductive wire from rotating and avoid unstable assembling.
In the above conductive component structure for wire connection terminal, the main body or the restriction body is provided with a stop section positioned in the area of the bow section or in the path of the conductive wire plugged into the conductive component to restrict the plug-in length or distance of the conductive wire. The two end sections of the main body are formed with bent edges upward extending from the lateral sides, whereby the two end sections of the main body are formed with a structure with an arched cross section. The depression of the restriction body and the two end sections of the main body together define a mouth section. The bent edges or the structure with the arched cross section can help in guiding the conductive wire to pass through the mouth section into the conductive component to be elastically securely pressed by the restriction body.
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 and lateral 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 having lateral sides 11 and two end sections 12. 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 two end sections 12) of the main body 10. The two end sections 12 of the main body 10 are formed with bent edges 13 upward extending from the lateral sides 11, whereby the two end sections 12 of the main body 10 are formed with a structure with an arched cross section as the inlets of the conductive wire. The bend edges 13 or the structure with the arched 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, the conductive component (or the restriction body 20) serves to prevent the conductive wire 50 from thrusting, cutting or scraping the case.
As shown in the drawings, the restriction body 20 includes a base section 24 fixed on the main body 10, a bow section 25 connected with the base section 24 and a free section 26 connected with the bow section 25. The bow section 25 has an arched structure. A first bent section 21 is formed between the base section 24 and the bow section 25 of the restriction body 20. A second bent section 22 is formed between the bow section 25 and the free section 26, whereby the free section 26 obliquely extends to the upper side of the drawing (or the upper side of the main body 10). The bow section 25 and the free section 26 together provide elastic effect for the restriction body 20.
In this embodiment, the restriction body 20 is provided with or assembled with an elastic body 40. The elastic body 40 is selectively made of an elastic electro-conductive (or metal) material in the form of a ring-shaped plate body (such as a leaf spring or the like). The elastic body 40 serves to enhance the action force of the restriction body 20 for elastically pressing and restricting the conductive wire 50 so as to minimize the possibility of deformation of the restriction body 20.
As shown in
In a preferred embodiment, the restriction body 20 is formed with a recessed section 23 between the bow section 25 and the free section 26 (in the position of the second bent section 22) to help in receiving and securing the elastic body 40. However, the waist sections 42 and the tail ends 43 of the elastic body 40 are permitted to elastically expand and restore to their home positions.
As shown in
As shown in the drawings, the restriction body 20 (or the depression 27) and the two end sections 12 and the bent edges 13 of the main body 10 together define a (holding) mouth section 15, whereby the conductive wire 50 can be guided to pass through the mouth section 15 into the conductive component to be elastically securely pressed by the restriction body 20. Also, the (arched) depression 27 of the restriction body 20 and the bent edges 13 of the main body press and assemble with the upper section, the lower section and the lateral sides of the conductive wire 50. Such structural form also helps in increasing the electro-conductive contact area between the conductive component and the conductive wire 50 to enhance the electro-conductive performance.
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 33, a bight section 34 connected with the head section 33 and a tail section 35 connected with the bight section 34. The tail sections 35 of the first and second leaf springs 31, 32 are formed with saw-toothed structures 36. The head section 33 and the bight section 34 of the first leaf spring 31 are overlapped with or overlaid on the head section 33 and the bight section 34 of the second leaf spring 32. The tail section 35 of the first leaf spring 31 and the tail section 35 of the second leaf spring 35 are respectively formed with a bent section 37, whereby the tail section 35 of the first leaf spring 31 and the tail section 35 of the second leaf spring 35 are separated from each other.
Please refer to
As shown in
As shown in the drawings, the tail section 35 of the first leaf spring and the tail section 35 of the second leaf spring 32 can respectively form a pressing point against the conductive wire 50. The second bent section 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 rotation, deflection or swing of the conductive wire due to collision of external force or assembling process is minimized.
Please now refer to
In this embodiment, the elastic body 40 is formed with a substantially Ω-shaped structure or a structure similar to the restriction body 20. Accordingly, the elastic body 40 has a base section 44, a bow section 45 connected with the base section 44 and a free section 46 connected with the bow section 45. The base section 44, the bow section 45 and the free section 46 of the elastic body 40 can be overlaid on the base section 24, the bow section 25 and the free section 26 of the restriction body 20 to enhance the elastic pressing force of the restriction body 20 as shown in
In this embodiment, the head section 47 is connected with a protrusion section 60. The protrusion section 60 serves as a support point for the elastic body 40, whereby the tail section 49 can lean on the restriction body 20 (or the bow section 25) to enhance the elastic pressing force of the restriction body 20.
It should be noted that the protrusion section 60 can be connected and formed on the elastic body 40 and fixed on the other part (such as the insulation case) of the wire connection terminal. Alternatively, the protrusion section 60 can be formed on the other part of the wire connection terminal.
As shown in the drawings, the head sections 33 of the first and second leaf springs 31, 32 are connected with each other, whereby the first and second leaf springs 31, 32 are formed as an integrated structure. In addition, the head sections 33 of the metal leaf spring 30 can cooperative with a spring 65 mounted in the case to enhance the action force of the tail sections 35 for pressing and restricting the conductive wire 50.
To speak representatively, in comparison with the conventional wire connection terminal, the conductive component structure for the wire connection terminal of the present invention has the following advantages:
In conclusion, the conductive component structure for 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 for 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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106122722 | Jul 2017 | TW | national |