Connecting pin structure for a transformer core

Details Connecting pin structure for a transformer core Connecting pin structure for a transformer core

2002-08-06

2004-06-29

Paumen, Gary (Department: 2833)

Electrical connectors

With circuit component or comprising connector which fully...

Termination circuit

C336S192000

Reexamination Certificate

active

06755692

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an improved connecting pin structure for a transformer core and in particular, an improved connecting pin structure for a transformer core with a reduced lateral dimension. Since the connecting pin structure according to the present invention is simplified, the required assembling machines during the assembling processes of the transformer core are also reduced, thereby promoting throughput.
2. Description of the Prior Art
FIG.
1
through
FIG. 3
show a connecting pin structure
1
A according to a prior art transformer core. As shown in figures, connecting pin structure
1
A of the prior art transformer core has a main body
10
A with a trapezoid-like roof. As best seen in
FIG. 3
, multiple fixing bases
101
A is provided within the main body
10
A. Coils
20
A are secured to the multiple fixing bases
101
A. Two terminal wirings
201
A are connected to the bent connecting pins
30
A arranged along periphery of the main body
10
A. The bent connecting pins
30
A are fixed on the main body
10
A by passing through corresponding recesses
11
A. This causes an undesirable expanded dimension in width. The increased width, as indicated in
FIG. 3
as a distance “A”, is undesirable since it will waste a great deal of area of an object to be connected with the transformer.
Referring to
FIG. 4
, another prior art connecting pin structure
1
B is illustrated. The connecting pin structure
1
B has a main body
10
B with an approximately H-shaped cross section. Multiple bent connecting pins
30
B are mounted in corresponding recesses
11
B arranged along two opposite sidewalls of the main body
10
B. With this configuration, the bent connecting pins
30
B are typically bent into an S shape to facilitate following connection. Also, this causes an undesirable expanded dimension in width. The increased width, as indicated in
FIG. 4
as a distance “C”, when combined with a lateral width “D” of the main body
10
B, is undesirable since it will waste a great deal of area of an object to be connected with the transformer.
The above-mentioned prior art connecting pin structures
1
A and
1
B both have connecting pins
30
A and
30
B that are laterally mounted on their associated main bodies
10
A and
10
B either through holes
11
A or recesses
11
B. Several drawbacks of such kind of connecting pin structures may be summarized as follows:
1. The laterally expanded connecting pins
30
A and
30
B occupy a large area of a receiving object when assembling.
2. The manufacture of such kind of S-shaped connecting pins
30
A and
30
B is time consuming and also expensive in cost. Besides, the connecting pins are subject to fracture problems since they are usually fabricated through multiple processing steps.
3. The S-shaped connecting pins
30
A and
30
B are difficult to assembly.
4. Since the assembly of the S shaped connecting pins
30
A and
30
B needs multiple special assembling machines to complete, the manufacturing cost is increased.
Thus, there is a strong need for an improved connecting, pin structure which is inexpensive and does not occupy too much space.
SUMMARY OF THE INVENTION
Accordingly, the main objective of the invention is to provide an improved connecting pin structure for a transformer core to solve the above-mentioned problems. The improved connecting pin structure is characterized in that the connecting pins, which are installed in vertical recesses that are arranged along two bottom peripheral sides of the insulating main body, are approximately L-shaped with a shrunk extended portion, thereby decreasing lateral dimension of the transformer core.
Another object of the present invention is to provide an improved connecting pin structure for a transformer core with a reduced lateral dimension. Since the connecting pin structure according to the present invention is simplified, the required assembling machines during the assembling processes of the transformer core are also reduced, thereby promoting throughput.
In accordance with the present invention, a connecting pin structure for a transformer core is provided. The connecting pin structure for a transformer core includes an insulating main body comprising a plurality of recesses therein at its bottom; a plurality of connecting pins installed in the plurality of recesses therein at the bottom of the insulating main body; and a coil secured on the insulating main body, the coil has terminal wirings connected to connecting pins.
Other objects, advantages and novel features of the invention will, become more clearly and readily apparent from the following detailed description when taken in conjunction with the accompanying drawings.


REFERENCES:
patent: 5823801 (1998-10-01), Elkhatib
patent: 5915979 (1999-06-01), Schell et al.
patent: 5919052 (1999-07-01), Ho

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