KR880002504Y1 - Key board - Google Patents

Abstract

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Description

LED connectors to connect to the flexible PCB on the keyboard

1 is a plan view of the present invention.

2 is an exploded perspective view illustrating the main parts of the present invention.

FIG. 3 (a) is a cross-sectional view taken along line A-A of FIG.

3B is a cross-sectional view taken along line B-B in FIG.

* Explanation of symbols for main parts of the drawings

1: "+" shaped insulator 2, 2a: conductive rubber

3, 3a: hole 4: LED

5, 5a: Both ends of the LED lead wire 6, 6a: Paper holding piece

7: Absorbing strip 8: Connection port

9: flexible PCB 10, 10a: copper foil

11: main body top plate of the keyboard 12: top plate square hole

P.T: Jamming Jaw

The present invention relates to an LED connector for connecting to the flexible PCB of the keyboard formed by fitting the LED to emerge to the upper surface of the pressure-dial forming the tack piece, so that both ends of the LED lead wire to be safely and easily connected to the stranded PCB of the keyboard when in use The purpose is to allow the keyboard to snap into the top panel of the keyboard.

In the case of the conventional PCB made of epoxy resin, it was hard and had good heat resistance, so it could be used by soldering LED. However, since the epoxy resin is expensive, the economic burden due to the purchase of raw materials is large and the both ends of the lead wire must be soldered separately. Due to this difficult drawback, the practicality of the use is less, the flexible PCB copper sheet is being used.

In general, the flexible PCB is soft and has low heat resistance and cannot be soldered. Therefore, both ends of the LED lead wires are grounded and plugged into the copper foil board, which is used to support the PCB. There was a defect that the lead terminal of the LED in the state was separated from the copper foil and thus the connection state was poor or the copper foil was damaged.

In order to reduce the shortcomings of the prior art, the LED connector formed by fitting both ends of the LED lead wires into the squeezing holes formed separately is inserted into the hole formed in the upper plate of the keyboard body to secure the copper foil plate. It is designed to be easily connected to and described in detail by the accompanying drawings as follows.

Both sides of the " + " insulator 1 are formed by bidirectionally bonding conductive rubbers 2 and 2a of different polarity to the lower side of the " + " insulator 1 having bored holes 3 and 3a on both sides. Both ends of the lead wires 5, 5a of the LED 4, known as holes 3, 3a, are fitted into the conductive rubbers 2, 2a, and then have a locking step P (T). The conductive rubbers 2 and 2a having different nationalities are connected to the connector 8 formed by adhesively fixing the known LEDs 4 to the squeezing holes 7 on which the squeezing pieces 6 and 6a are formed. It is made by being fitted into the square hole 12 drilled in the keyboard body upper plate 11 which is known to be grounded to the copper film 10, 10a of 9).

In the drawings, reference numerals 10 'and 10a' denote insulating films.

In this way, the present invention adheres bidirectionally under the "+" type insulator 1 so as to prevent shorting of the conductive rubbers 2 and 2a having different polarities so that both ends of the LED lead wires 5 and 5a are insulated. Inserted into both side holes (3) and (3a) of (1), it is fitted into the conductive rubber (2) and (2a), and the LED is inserted into the inner bottom of the squeegee 7 so that the LED emerges from the upper surface of the squeegee 7. The connector 8 is formed by fixing, and when using the connector 8 configured in this way, the multilayer film 10 and 10a of the flexible PCB 9 installed in the keyboard body below the square hole 12 in advance are exposed. Since the PCB insulating film of the structure is peeled off, it is inserted into the square hole 12 drilled in the upper plate 11 of the keyboard main body while pressing the tack pieces 6 and 6a formed on both sides of the brace 7. The degree of polarization at the lower end of the connection port 8 is also different when the catcher P of the presser pieces 6 and 6a is bitten by the jaw of the square hole 12. The malleable rubber (2) (2a) is to be fixed as a state securely grounded to the copper film (10) (10a) of the flexible PCB (9).

In this way, when the connector is inserted into the square hole drilled into the upper plate of the keyboard body, the elasticity and the large area of the conductive rubber having different polarities formed at the lower end of the connector are in good contact with the flexible PCB copper film. There is no risk of damaging the flexible PCB or bad contact due to shaking even if you move it. In some cases, when replacing the LED, if you pull the paper while pressing only the paper pieces formed on both sides of the connector, Since it is freed from the hole and can be easily pulled out, it is easy to use as it is easy to insert and remove the connector.

Claims (1)

Both ends of the lead wires (5) (5a) of the LED (4) known as holes (3) (3a) drilled on both sides of the "+" shaped insulator (1) to which the conductive rubbers (2) (2a) are bonded to each other. Is inserted into the conductive rubber (2) (2a), and then the known LED (4) is formed in the holding member (7) having formed the holding member (6) 6a having the locking step (P) (T). The keyboard body top plate 11 is known so that the connection port 8, which is adhesively fixed so as to stand out, is grounded to the copper film 10, 10a stripped from the surface of the flexible PCB 9 by the conductive rubber 2, 2a. An LED connector for connecting to a flexible PCB of a keyboard that is fitted into a rectangular hole 12 drilled in a hole.