KR920004171Y1 - Radio antenna for car - Google Patents

Abstract

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Description

Car radio antenna

1 is a perspective view of the present invention.

2 is a partial perspective view of the present invention.

3 is a sectional view of main parts of the present invention.

4 is a block diagram of an appendix diagram of an antenna operating circuit according to the present invention.

5 is a circuit diagram illustrating an antenna operation according to the present invention.

* Explanation of symbols for main parts of the drawings

1: body 2: cover

201: tooth tooth 202: stone piece

3: cover 301: tooth tooth

302: operation stone 4: motor

401: 윔 5: Wheel

5A: Idle Gear 6: Receiving Rod

7: rope 8: pinion

801: winding rod 9: coil spring

901, 902 bend portion 10: support tube

11: automatic electronic control box

The present invention relates to a rod-type vehicle radio antenna in which the radio receiver is automatically moved up and down at the same time the radio of the vehicle is turned on and off.

Conventional vehicle antennas of this type are structured in a controlled manner by means of clutches and contact switches, resulting in various problems such as the occurrence of clutch noise and damage to components of the antenna due to load and poor contact. It became.

In other words, if you operate the car's engine to start the car while listening to the radio broadcasting with the receiving rod stopped and the receiving rod automatically descends and then rises, the receiving rod descends and then goes up. The receiver could not listen to the radio due to a lot of noise. Also, the overload caused by the motor continued to operate even when the receiving rod was completely exposed to the outside due to the operation of the motor was composed of complicated parts. Since it is configured to offset by the clutch, it requires a lot of production cost and of course, the upper overload is applied until the clutch is operated. Operation of clutch during operation There was a flaw that caused noise.

In order to solve the above-mentioned shortcomings, the conventional clutch part is very sensitive to overload, and the structure is simple and very reasonable, and at the same time, the motor and the motor are automatically connected by the automatic electronic circuit in the control box. It is to be conceived a car radio antenna that can be controlled by, as described in detail by the accompanying drawings as follows.

The cover 2 having the teeth 201 formed therein and the cover 3 having the teeth 301 formed therein are coupled to the tooth 1 20 so that the teeth 401 of the motor 4 are attached to the teeth 201. The winding rod 801 which engages the idle gear 5A rotated by the fitted wheel 5 and the teeth 301 winds the rope 7 which moves the receiving rod 6 up and down. In the well-known thing which matched the pinion 8, in the cover 2 Protruding protrusion 202 of the mold to hook both ends 901 and 902 of the coil spring 9 and projecting the cover 3 between the protrusion 202 and the bent portions 901 and 902. The protrusion pieces 302 are fitted to each other, and the operation of the motor 4 is automatically controlled by the automatic telephone circuit in the automatic electronic control box fixed to the support tube 10.

When the radio switch is turned on, the present invention, as described above, rotates the cover 2 by the operation of the motor 4, and at the same time, the operating protrusion piece 302 is bent part 901 of the protrusion piece 202 and the coil spring 9 ( The cover 3 sandwiched between 902 is also rotated so that the receiving rod 6 is raised by the pulling of the rope 7, and the protrusion piece 202 is formed like the third tile in the state where the receiving rod 6 is fully raised. The load is applied to the cover 2 by the bent portions 901 and 902 of the coil spring 9, and the motor 4 is automatically stopped by the automatic electronic circuit. Due to the electronic circuit, the motor 4 is not operated and the receiving rod 6 is kept in an elevated state, thereby preventing the generation of noise in the radio.

That is, according to the ON or OFF of the radio switch, the relay goes up (UP) or down (DOWN) state, at the same time the signal is input to the IC (IC) to drive the transistor for the motor radio to ON Start working.

When the receiving rod 6 is fully raised or lowered, the motor is forcibly loaded, and thus the current flowing in the motor 4 is rapidly increased.

At this time, the sensor (SENSER) immediately detects the braking signal and sends it to the IC through the braking transistor. At the same time, the IC lowers the braking signal to the motor load transistor to stop the flow of current. When the radio switch is turned off or on again, the above operation is repeated. In the circuit diagrams and circuit diagrams of the electronic circuits of FIGS. 4 and 5, the relay operates when the input unit is switched on. ANT, the motor rotates in the forward direction, and when the switch is OFF, the relay does not operate. ANT, the motor rotates in the reverse direction. ② When the relay is running, + 12V goes to the X side of the motor through the contact A of the relay. Power is applied to the motor, driving in the forward direction. When the relay is in inoperative operation, + 12V is applied to the motor's Y side through the contact B of the relay.

③ Set "B" to the signal input terminal (R / SW). "When the power is applied, the signal is input to the point" C "through the CAPA CITOR 4 (C4) and the amplifier IC II starts to operate, and the voltage"-"is output to the point" D ". When the voltage is turned off at SW), the signal is input at the point "A" through CAPACITOR5 (C5), and the amplifier ICI is operated to output the voltage "-" at the point "D".

④ Since the voltage applied to the input "D" point of the comparator (IC III) is lower than the voltage applied to the input "F" point, the output "E" point voltage is high (+). This voltage is applied to the transistor TR 'through the transistor TR2, and the COLLECTOR of the transistor TR' is turned off. Therefore, the motor rotates because the length of the current opens.

⑤ If the motor is forcibly restrained while the motor is rotating, the flowing current suddenly increases, and at this time, a potential "+" signal is generated at the "G" point of the sensing sensor R / installed in this circuit path. TEEDBACK to IC IV) sends "-" power to the output "F" point of the brake (IV IV) and transfers it to transistor TR / through transistor TR2 and closes COLLECTOR. Accordingly, the current flow of the motor is blocked and the rotation is stopped.

⑥ That is, when "E" point voltage is "+", the transistor (TR /) is conducting and the motor operates. When "E" point voltage is "-", the transistor (TR /) does not work. The dual transistor (TR /) is intended to provide protection against excessive current and increase capacity.

Since this invention is made by a very reasonable structure, there is an effect that can eliminate the defects of the conventional vehicle radio antenna.

Claims (1)

The cover 2 having the toothed teeth 201 formed therein and the cover 3 having the toothed teeth 301 formed therein are coupled to the toothed teeth 201 and the worm 401 of the motor 4 The winding rod 801 of the winding rod 801 which engages the idle gear 5A rotated by the fitted worm wheel 5 and the teeth 301 winds the rope 7 which moves the receiving rod 6 up and down. In the well-known thing which matched the pinion 8, in the cover 2 Protruding protrusion 202 of the mold to hook both ends 901 and 902 of the coil spring 9, and projecting the cover 3 between the protrusion 202 and the bent portions 901 and 902. A radio antenna for a vehicle in which an operation of the motor 4 is automatically controlled by an automatic electronic circuit in the automatic electronic control box fixed to the support tube 10 by fitting the protrusion pieces 302 into the coupling pieces.