Fly back transformer

Details Fly back transformer Fly back transformer

1999-12-23

2001-06-19

Mai, Anh (Department: 2832)

Inductor devices

With mounting or supporting means

C336S192000, C336S195000

Reexamination Certificate

active

06249201

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates in general to a fly back transformer. In particular, the present invention relates to a means for fixing a fly back transformer.
2. Description of the Related Art
A fly back transformer (FBT) is provided on the rear of a television or monitor to transform the voltage of an external power into the required voltage for the cathode-ray tube of the television or monitor. Referring to
FIG. 1
, a conventional fly back transformer has a collecting element
11
and a main body
12
. The collecting element
11
has three tubes
113
,
114
,
115
arranged in parallel, while the main body
12
has three sleeves
123
,
124
,
125
corresponding to the tubes
113
,
114
,
115
. The process of assembling the fly back transformer is as follows: A high voltage wire
16
, a focus wire
17
and a screen wire
18
are respectively inserted into the tubes
113
,
114
,
115
as shown in FIG.
2
A. Then, the tubes
113
,
114
,
115
are inserted into the sleeves
123
,
124
,
125
so that the wires
16
,
17
,
18
electrically contact the main body
12
, as shown in FIG.
2
B.
Friction exists between the wires
16
,
17
,
18
and the tubes
113
,
114
,
115
as well as between the tubes
113
,
114
,
115
and the sleeves
123
,
124
,
125
to prevent the assembled fly back transformer from separating. However, the friction is not great. A pull on the wires possibly separates the assembled fly back transformer so that the workers in the production lines of factories need to reassemble the separated fly back transformer. That is a burden on the workers.
Taiwanese patent No. 278764 provides an engaging element to fix the main body
12
and the collecting element
11
together. This arrangement does solve the problem of the separation between the main body
12
and the collecting element
11
arising from a pull on the wires. However, this arrangement does not solve the problem of the separation between the wires
16
,
17
,
18
and the collecting element
11
.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a fly back transformer, in which the wires and the collecting element do not separate when a pull is applied on the wires.
The fly back transformer of the present invention includes a main body, a collecting element and at least one wire. The collecting element is fixed to the main body. Furthermore, the collecting element has a fixing portion. The wire is connected to the main body via the collecting element. Furthermore, the wire is fixed to the collecting element by the fixing portion to prevent a separation between the wire and the collecting element.
Alternatively, the fly back transformer of the present invention includes a main body and at least one wire. The main body has a fixing portion. The wire is fixed to the main body by the fixing portion.
The above-mentioned fixing portion is, for example, hook-shaped or pincers-shaped or is a protrusion.


REFERENCES:
patent: 3622100 (1971-11-01), Wright
patent: 3663914 (1972-05-01), Lane
patent: 3701961 (1972-10-01), Folk
patent: 6010362 (2000-01-01), Caviness et al.

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