Patent Application
20200313311
The present invention relates to a transformer or an inductor, and more particularly to an output wire joining structure of a winding seat for a transformer or an inductor.
A transformer often plays an important role for converting power or isolating signals in various electronic components. An inductor is one of passive electronic components, which is often used in electronic products. It resists current changes in the electronic circuit, thereby filtering current noise, stabilizing the current value in the circuit, reducing electromagnetic interference and converting power.
Generally, the winding structure of the transformer or the inductor includes a winding frame, a coil unit, and a magnetic core unit. (The coil unit of the transformer may include a primary coil and a secondary coil.) The coil unit is wound around the winding frame. The magnetic core unit is mounted on the winding frame wound with the coil unit, and is partially inserted into the passage of the winding frame, thereby completing the assembly of the transformer or the inductor. However, the coil unit of the assembled transformer or inductor is composed of several wires. In order to short-circuit the output ends of the wires, it is often necessary to wind the output or input ends around metal pins of the winding frame through metal wires. The outlet ends are connected to the metal pins by soldering. The metal wires are wound manually, which requires certain skills and rules, so it is difficult to control the quality. After soldering, it is easy to cause uneven soldering at the soldering joints. This not only affects the appearance, but also causes defects such as incomplete soldering and high impedance. Accordingly, the inventor of the present invention has devoted himself based on his many years of practical experiences to solve these problems.
The primary object of the present invention is to provide an output wire joining structure of a winding seat for a transformer or an inductor, which can ensure uniform soldering and beautiful appearance. The impedance is low and the rated current is large enough, so that the transformer or the inductor is not easy to be burned. The service life is prolonged, the processing is easy, the labor cost is reduced, and the production is convenient.
In order to achieve the aforesaid object, an output wire joining structure of a winding seat for a transformer or an inductor is provided. The winding seat comprises a winding portion and a support portion. The winding portion is disposed on top of the support portion for winding a coil. Two sides of the support portion are provided with pin holders. Each of the pin holders is provided with a plurality of spaced positioning protrusions and accommodating grooves each defined between every adjacent two of the positioning protrusions for insertion of output wires of the coil, a metal pin being disposed beneath each of the positioning protrusions. At least one joining plate is disposed beneath the pin holders corresponding in position to the output wires. The joining plate is an elongated plate made of a metal material. The joining plate has a plurality of positioning tabs corresponding to the positioning protrusions of the pin holders and a plurality of receiving grooves corresponding to the accommodating grooves of the pin holders. Each of the receiving grooves is defined between every adjacent two of the positioning tabs. The receiving grooves each have an opening, and the accommodating grooves each have an opening. The openings of the receiving grooves and the openings of the accommodating grooves are located at a same side. Each of the positioning tabs has a perforation for the metal pin to pass through.
Through the output wire joining structure of the winding seat for a transformer or an inductor provided by the present invention, the joining plates are attached to the pin holders, and then the output wires are pulled along the accommodating grooves of the pin holders and the receiving grooves of the joining plates. The output wires are soldered to the metal pins of the corresponding joining plates, so that the output wires and the metal pins are fixedly connected to the joining plates, respectively. Thus, the output wires and the metal pins can be quickly soldered and fixed to form a connection, without complicated winding.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings.
The winding portion 10 is made of an insulating material. The winding portion 10 includes a winding area 11 and a top plate 12. The winding portion 11 is configured to wind a coil 40. The coil 40 is provided with a plurality of output wires 41. The top plate 12 is disposed on top of the winding portion 10. Tow side of the top plate 12 are provided with stoppers 13. The winding portion 10 is provided with a through hole 14 passing through the top plate 12.
The support portion 20 is disposed beneath the winding portion 10. The periphery of the support portion 20 is provided with a plurality of baffles 21 having an appropriate height. The baffles 21 are collectively formed into a rectangle. Two sides of the support portion 20 are provided with pin holders 22. Each pin holder 22 is provided with a plurality of spaced positioning protrusions 23 and accommodating grooves 24 each defined between every adjacent two of the positioning protrusions 23 for insertion of the output wires 41. A metal pin 25 is disposed beneath each of the positioning protrusions 23. Two joining plates 30 are disposed beneath the pin holders 22 corresponding in position to the output wires 41. The joining plates 30 each have a plurality of positioning tabs 31 corresponding to the positioning protrusions 23 of the pin holders 22 and a plurality of receiving grooves 24 corresponding to the accommodating grooves 24 of the pin holders 22. Each of the receiving grooves 24 is defined between every adjacent two of the positioning tabs 31 and has a U shape. The receiving grooves 32 each have an opening, and the accommodating grooves 24 each have an opening. The openings of the receiving grooves 32 and the openings of the accommodating grooves 24 are located at the same side. Each of the positioning tabs 31 has a perforation 33 for the metal pin 25 to pass through.
Although particular embodiments of the present invention have been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the spirit and scope of the present invention. Accordingly, the present invention is not to be limited except as by the appended claims.
