KR920005053Y1 - Flyback taansformer - Google Patents

Abstract

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Description

Flyback Trans Fixture

1 is a partially separated perspective view of the device of the present invention.

2 is a side cross-sectional view of an embodiment of the device of the present invention.

3 is a side cross-sectional view of a conventional flyback trans fixture.

* Explanation of symbols for main parts of the drawings

1: machine chassis 2: A-shaped fixture

3: protrusion jaw 4: elastic receiving

5: circuit board 6: base jaw

7: flyback trance 9: core

The present invention relates to a flyback transformer (FBT) fixing device, and in particular, the flyback transformer fixed to the circuit board is fixed to the appliance chassis by a fixing member formed with a support jaw and an elastic support, so that the flyback transformer swings even when the external shock such as transportation is carried out. An embarrassing flyback trance fixture.

In the conventional flyback transformer fixing device, as shown in FIG. 3, both sides of the circuit board 32 on which the flyback transformer 31 is soldered are fixed to the support 35 on which the bolt 34 is fixed to the device chassis 33. The circuit board 32 is inserted into the groove, but the cushioning rubber 36 is provided between the device chassis 33. The operation relationship thereof is as follows.

First, a plurality of supports 35 are inserted into the side of the circuit board 32 on which the flyback transformers 31 and the like are fixed, and the supports 35 are fastened to the appliance chassis 33 by bolts 34, but When the buffer rubber 36 is provided between the bottom of the circuit board 32 on which the transformer 31 is located and the device chassis 33, the shock is stable at least in the (d) direction and is shocked in the (b) and (c) directions. The support 35 and the buffer rubber 36 can prevent damage to the circuit board 32 to some extent.

However, in general, the flyback transformer 31 has a high center of gravity due to its high performance compared to the bottom contact area with the circuit board 32 due to its performance, so that the impact in the (b) and (c) directions is increased. When the strength of the substrate 32 is stronger than the shear strength of the material, the circuit board 32 is necessarily damaged.

In particular, the (A) direction of the impact there is no way to protect in particular, even when the device is in the packaging state there is a problem that the circuit board 32 is damaged when dropped upside down.

Of course, if epoxy circuit board with strong shear strength is used, it can prevent damage to the board to some extent, but the price is higher than general phenol substrate, so if epoxy circuit board is used There was a problem that the production cost of the rise.

The present invention devised to solve such a conventional problem is to form the elastic support and the support jaw of the fixed body fixed to the appliance chassis integrally so that the support jaw is pressed on the upper surface of the flyback transformer, the bottom of the circuit board It is an object of the present invention to provide a flyback transformer fixing device that prevents breakage of a circuit board caused by an oscillation of a flyback transformer due to an external impact or the like by supporting the elastic bearing. When described in detail as follows.

As shown in FIG. 1, the device of the present invention has a side surface of a circuit board 5 sandwiched between an elastic projection 4 and a projection jaw 3 under the L-shaped fixture 2 fixed to an appliance chassis 1. Supported by the end 4 ′ of the elastic support 4, and the support jaw 6 of the L-shaped fixture 2 supports the upper portion of the flyback transformer 7, but the upper hole 8 has a core 9. ) Is fitted, wherein reference numeral 10 denotes a bolt.

The other side of the circuit board 5, not shown, is fixed by conventional means.

If described with reference to Figure 2 the effect of the device of the present invention configured as described above.

First, the elastic support 4 and the support jaw 6 are supported on the bottom surface of the circuit board 5 and the upper surface of the flyback transformer 7, respectively, and then the A-shaped fixture 2 is inserted thereinto the A-shaped high. Fixing the bolt 2 to the appliance chassis 1, the body 2 is fitted with the core 9 of the flyback transformer 7 into the upper through hole 8, and at the same time the projection jaw (3) and the existing buffer rubber The circuit board 5 and the flyback transformer 7 and the fixing body 2 are integrally fixed by the circuit board 5 being sandwiched and fixed between the elastic trays 4 to replace the functions of (a)-(e). Since the shock does not swing in any direction, the circuit board 5 can be prevented from being broken.

That is, the shock applied in the directions of (a)-(c) can be blocked by the bolt-shaped fixing body (2) fixed to the appliance chassis (1) and surrounding the flyback transformer (7) surrounding the flyback transformer (7). The impact applied in the direction of d) can be buffered by the elastic force of the elastic support 4, so that the flyback transformer 7 which is rocked by the impact applied from the outside can be completely fixed.

As described above, according to the device of the present invention, it is possible to fundamentally prevent the circuit board from being damaged due to the fluctuation of the flyback transformer against the impact during transportation, thereby improving the safety of the product.

Claims (1)

The side surface of the circuit board 5 is sandwiched between the protruding jaw 3 and the elastic support 4 under the L-shaped fixture 2 fixed to the appliance chassis 1 so that the end 4 'of the elastic support 4 is fitted. ), And the support jaw 6 of the L-shaped fixture 2 supports the upper portion of the flyback transformer 7, but the flyback transformer is characterized in that the core 9 is fitted into the upper through hole 8. Fixture.