JP2000269713A - Antenna for portable telephone - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize as much as possible a light part provided in the front end of an antenna for portable telephone to improve convenience. SOLUTION: A light part 6, which is lit at the time of radio transmission/ reception by an antenna main body 5, is provided in the front end of the antenna main body 5 connected to a portable telephone set. The light part 6 consists of a base 6A fixed to the front end of the antenna main body 5, a circuit board 6B mounted on this base, and a lens 6C attached on the base, and chip parts including a chip type light emitting diode 61 are surface mounted on the circuit board 6B to constitute a resonance circuit. This light part 6 is short-sized and has good appearance, and it will not be in the way when the portable telephone set is stored in a bag.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a PHS (Personal
The present invention relates to a mobile phone antenna including a handyphone system, and more particularly to a simple telescopic mobile phone antenna whose tip shines during an incoming call or a call.

[0002]

2. Description of the Related Art In recent years, the spread of portable telephones has been remarkable. As antennas used in such communication devices, not only short and fixed antennas but also telescopic antennas are known. As the telescopic antenna, a manual telescopic antenna is the mainstream,
A single rod-shaped extension that can be extended with a single touch is often used. For example, Japanese Patent Application No. 11-11136 previously filed as a patent application discloses such an antenna. In addition, many telescopic antennas used in mobile phones are removable so that they can be replaced when broken.
As a replacement, a telescopic antenna that can be extended by one touch as described above has been awarded.

[0003] In particular, in the past, those equipped with a light portion incorporating an LED lamp at the tip of such a mobile phone antenna have been developed and widely used in general.

FIG. 9 shows an example of such a case. A is an antenna main body, L is a light portion provided at its tip,
The light portion L generally includes a base B fixed to the tip of the antenna body A, a translucent cap C mounted on the base, and an LED lamp D installed inside the base. Among them, as the LED lamp D, as shown in the drawing, a lead frame in which an LED chip is mounted on one of two outer leads, the LED chip is connected to the other outer lead by a bonding wire, and the portion is sealed with a resin lens. In addition to the type, a stem type is used.

[0005] The light portion L thus configured is
According to the antenna for a mobile phone provided with the antenna, the LED lamp is illuminated by using the radio wave transmitted and received by the antenna body, so that the effect of visually notifying the incoming call and improving the appearance can be obtained, and the use thereof is widely spread. Notable.

[0006]

However, since the light portion of the conventional mobile phone antenna uses a modularized LED lamp as the light source as described above, it is difficult to miniaturize the light portion, and the overall length is long and the appearance is impaired. In addition, when the present invention is applied to a telescopic antenna, the light portion protrudes larger than the mobile phone even when it is not used, so that the telescopic function of the antenna itself is impaired.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a purpose thereof is to make the light portion provided at the tip of a mobile phone antenna as small as possible to greatly improve convenience. To improve it.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a portable telephone antenna in which a light portion is provided at the tip of an antenna body, and the light portion is turned on when transmitting and receiving radio waves by the antenna body. The light unit includes a chip-type light-emitting diode surface-mounted on a circuit board as a light source, and a lens that transmits light emitted from the light-emitting diode mounted on a base on which a circuit board including the light-emitting diode is mounted. It is intended to provide a mobile phone antenna characterized in that:

Further, the present invention relates to a portable telephone antenna in which a light portion is provided at a tip of an antenna body, and the light portion is turned on when radio waves are transmitted and received by the antenna body, wherein the light portion is fixed to a tip of the antenna body. A base, a resonant circuit in which a chip component including a chip-type light emitting diode is surface-mounted on a circuit board mounted on the base, and light emitted from the inside light emitting diode covered on the base and radiated from the outside. And a semi-transparent lens having a spherical shape that radiates light to the mobile phone.

Here, it is preferable to form a light diffusion layer on at least one of the inner surface and the outer surface of the lens.

Further, as a more preferable aspect of the present invention, a detachable cylindrical telescopic guide attached to an antenna mounting portion of a mobile phone, and a rod-shaped antenna movably and axially passed through the telescopic guide. A telescopic antenna for a mobile phone, comprising: a main body; and a light section illuminated when transmitting and receiving radio waves by the antenna main body using a chip-type light emitting diode, which is surface-mounted on a circuit board, at a tip of the antenna main body as a light source. A terminal is provided at the other end of the antenna body for press-fitting into the lower end of the telescopic guide when the antenna main body is extended, and the telescopic guide is deformed when the antenna main body is pushed down, thereby deforming the antenna main body. An elastic body that urges toward the distal end side, and a lock unit that locks a distal end portion of the antenna main body against a restoring force of the elastic body; The antenna body is ejected toward the distal end thereof while being restored when the locking of the distal end of the antenna main body by the locking means is released by being incorporated in the compression guide, and the antenna main body is provided on the distal end side with the elastic body. A mobile phone antenna is provided, wherein a pressure receiving portion to be pressed is formed so that the terminal is introduced into and supported in the telescopic guide by injection by an elastic body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, FIG. 1 shows a state in which the antenna according to the present invention is connected to a mobile phone. In FIG. 1, reference numeral 1 denotes a mobile phone, on which an antenna mounting portion 2 having a cylindrical shape is formed at an upper portion of a housing. Reference numeral 3 denotes an antenna of the present invention connected to the antenna mounting portion 2. The antenna 3 is a short and small cylindrical expansion / contraction guide 4 of about several cm mounted on the antenna mounting portion 2, and is movable in the axial direction by the expansion / contraction guide 4. And a rod-shaped antenna main body 5 having an axial length of about 10 cm. In particular, a light portion 6 that is turned on by transmitting and receiving a specific radio wave from the antenna body is provided at the tip of the antenna body 5. According to the antenna 3, the antenna body 5 is housed in the mobile phone 1 through the telescopic guide 4, and the housed antenna body 5
Can be extended as imaginary lines as needed during a call or the like, and this can be visually confirmed by turning on the light unit 6 when an incoming call arrives.

FIG. 2 is a perspective view showing the telescopic guide partially broken away. As clarified in this figure,
The telescopic guide 4 is formed with a screw of a predetermined pitch on the outer periphery of the lower part as a connecting portion 7 for mounting the antenna mounting portion 2 of the mobile phone 1. An operation knob 8 and a spring 9 for urging the operation knob in the horizontal direction are built in the upper side of the telescopic guide 4. The operation knob 8 has one end thereof connected to the telescopic guide 4.
The other end is pressed toward the head 8A by a spring 9 as a head 8A slightly projecting from the outer peripheral surface of the head. In the operation knob 8, a circular through hole 8 </ b> B through which the antenna main body 5 passes is formed in a portion extending to the back surface side of the head portion 8 </ b> A as locking means for locking the front end of the antenna main body 5. That is, according to the operation knob 8 urged in the direction perpendicular to the axis of the antenna main body 5 by the spring 9, the edge of the through hole 8 </ b> B is located at the front end side of the antenna main body 5 when the antenna main body 5 is pushed down as described later. By locking, the movement in the axial direction can be restricted.

The operation knob 8 also has an unlocking function. In other words, by pressing the head portion 8A against the elasticity of the spring 9, the engagement between the distal end portion of the antenna main body 5 and the through hole 8B can be easily released. In FIG. 2, reference numeral 10 denotes an opening formed in the center of the distal end of the telescopic guide 4 so as to face the through hole 8B, and the antenna main body 5 extends outward from the opening 10.

Next, FIG. 3 is a longitudinal section of the telescopic guide,
FIG. 4 shows an exploded state of the antenna of the present invention. As is apparent from these figures, the elastic guide 11 has a built-in elastic body 11 made of a compression coil spring and a ring-shaped washer 12 in addition to the spring 9 described above. The elastic body 11 is provided so as to be able to expand and contract along the axial direction of the antenna body 5.
1 and a washer 12 arranged on top of the antenna body 5
Is passed. The elastic body 11 is provided inside the telescopic guide 4.
A cylindrical area 13 </ b> A that can store the elastic body 11 and the washer 12 is formed, and a lower end of the area 12 </ b> A is a stepped seating part 14 so as to support the lower surface of the elastic body 11. Further, inside the telescopic guide 4, other areas 13B and 13C are formed above and below the area 13A. The operation knob 8 and the spring 9 described above are stored in the upper region 13B, and the lower end thereof is introduced into the lower region 13C when the antenna body 5 is extended.

In particular, a cylindrical leaf spring 15 having a split groove is provided in the lower region 13C as a support for supporting the lower end of the antenna body 5 when the antenna body 5 is extended. The lower end is press-fitted. Here, the telescopic guide 4 is composed of a jig main body 4A that bisects a storage area 12A and a base 4B that is screw-connected to the jig main body so that the elastic body 11 can be stored.

On the other hand, the antenna body 5 has an element 5A made of a shape memory alloy or other conductor wire as a core wire, and is fixed to a resin-made sheath tube 5B into which the element 5A is inserted, and to one end (end) of the element 5A. It includes a conductive sleeve 5C and a terminal 5D fixed to the other end (lower end) of the element 5A, and the light portion 6 is provided at the tip thereof via the sleeve 5C as described above. Here, the sleeve 5
C has a recessed constriction 16 as a locked portion to be locked by the through hole 8B of the operation knob 8, and the sleeve 5C has a diameter that the washer 12 cannot pass through. A connection portion with the sheath tube 5B is formed as a tapered pressure receiving portion 17. Then, the pressure receiving portion 17 is connected to the antenna main body 5.
Is pressed down by the elastic body 11 through the washer 12 as shown in FIG.

Next, FIG. 5 is a schematic sectional view of a light portion having a total length of 10 mm or less and an outer diameter of 9 mm or less. As shown in this figure, the light portion 6 includes a metal base 6A fixed to the tip of the antenna main body 5, a circuit board 6B mounted on the base, and a transparent cover provided on the base via the circuit board. It is composed of an optical lens 6C. Among them, a light emitting diode 61 (LED chip), a coil 62 (chip coil), and a rectifying diode 6 are provided on the circuit board 6B as chip-type electronic components.
3 (Schottky diode chip) is surface-mounted to form a resonance circuit. The tip of the antenna body 5 penetrates the base 6A and the element 5A is connected to the circuit board 6B.
The light emitting diode 61 connected to the antenna 63 rectifies radio waves transmitted and received by the antenna body 5 and emits light.

FIG. 6 shows the circuit diagram. As is clear from this figure, in addition to the light emitting diode 61, the coil 62, and the diode 63, the air discharge electrode 64 for obtaining a resonance point is incorporated in the circuit board 6B, and the anode of the light emitting diode 61 is connected to the coil 62. Through element 5A
And the cathode side is connected to the anode side of the diode 63 via the air discharge electrode 64 to form a series resonance circuit.

Then, the circuit board 6B is mounted on the base 6A as described above, and a translucent lens 6C for transmitting light emitted from the light emitting diode 61 as a light source is mounted on the base 6A to form a thin light. The unit 6 is configured. Although the air discharge electrode 64 is configured by bringing positive and negative electrodes close to each other, it may be formed into a chip-type capacitor like other chip components and surface-mounted on the circuit board 6B. Also, as shown in FIG. 7, a switch sw such as a microswitch can be interposed on the anode side of the light emitting diode 61. According to this, the switching section does not turn on the light section 6 as necessary. it can.

On the other hand, the lens 6C is made of, for example, a resin having a spherical shape, and a light diffusion layer 65 for diffusing light emitted from the light emitting diode 61 is formed on the inner surface thereof. The light diffusion layer 65 is formed by matte processing by physical processing such as shot blasting or chemical processing, but may be formed on the outer surface or inner and outer surfaces of the lens 6C, and the lens 6C may be formed of milky resin. The light diffusion property can be given to the whole by forming. In this way, by giving the lens 6C a light diffusing property, the emitted light of the light emitting diode 61 can be evenly emitted from the entire surface of the lens 6C, so that the visual effect from each direction is improved. I do not care. Also, a chip type light emitting diode 6
1 (LED chip) is not limited in the number of mounted and its emission color, and includes (GaP) LED and (GaAsP) LED
Consisting of red LED, orange LED, yellow LED, white L
An ED and a green LED are used.

Here, the operation of the antenna of the present invention configured as described above will be described. First, as shown in FIG. 3, when the antenna main body 5 is pushed down and contracted, the antenna main body 5 is kept pressed while the pressure receiving portion 17 formed on the distal end side thereof is pressed by the elastic body 11 and urged in the distal end direction. The constricted portion 16 formed at the distal end portion is locked by the through hole 8B of the operation knob to maintain the reduced state. Then, in this state, the antenna body 5 is simply pressed by pressing the head 8A of the operation knob.
Can be extended. That is, when the head 8A of the operation knob is pressed against the elasticity of the spring 9, the engagement between the through hole 8B of the operation knob and the constriction 16 of the antenna body is cut off. The antenna body 5 in a state of being urged in the direction is vigorously ejected toward the distal end by the restoring force of the elastic body 11. The elastic body 11 is the washer 1
When the antenna 2 reaches the upper end of the region 13A, the antenna main body 5 continues to extend while maintaining the initial speed without resistance, and is stopped when the terminal 5D at the lower end is introduced into the telescopic guide 4. At this time, the terminal 5D is press-fitted into the leaf spring 15 and supported, so that the antenna main body 5 is kept out of contact with the elastic body 11 and the extended state is maintained while the lower end is supported by the telescopic guide 4. be able to.

On the other hand, in order to reduce the size of the antenna main body 5, it is sufficient to press the tip thereof. That is, when the tip of the antenna body 5 is pressed, first, the terminal 5D is
Then, the pressure receiving portion 17 comes into contact with the washer 12. Therefore, if the tip of the antenna main body 5 is continuously pressed against the elasticity of the elastic body 11, the antenna main body 5 descends while the elastic body 11 is reduced by the pressure receiving portion 17, and the tip end is finally engaged by the operation knob 8. Will be stopped. By the way, since the pressure receiving portion 17 is formed in a tapered shape that becomes thinner toward the lower end side of the antenna main body 5, a load when the relevant portion passes through the through hole 8B of the operation knob is small, and the antenna main body 5 can be smoothly moved. Although the pressure can be reduced, the pressure receiving portion 17 may be a right-angled surface. At this time, the antenna main body 5 can be reduced smoothly while the operation knob 8 is pressed.

Next, when transmitting and receiving radio waves by the antenna body 5, the light section 6 is turned on by the action of the radio waves. That is, when a radio wave of a predetermined frequency is received by the antenna main body 5 or a radio wave is transmitted through the antenna main body 5, the light portion 6 provided at the tip thereof receives the radio wave distributed to the antenna main body 5 and rectifies it. As a result, the light emitting diode 61 emits light, and the light passes through the lens 6C and is emitted to the outside. Therefore, at the time of an incoming call, not only the ring tone but also this can be visually recognized,
In addition, during the call, the lighting of the light unit 6 makes the antenna main body 5 very prominent.

A preferred example of the present invention has been described above.
The present invention is not limited to the telescopic antenna, and the fixed type antenna can be provided with the light portion 6 as described above, and the telescopic antenna is not limited to the above configuration. An example is shown in FIG. 8 and explained. This mobile phone antenna is an antenna body 25 provided with an upper terminal 25A and a lower terminal 25B on both sides in the axial direction. 2 is movably and axially passed through a telescopic guide 24 attached to the telescopic guide 24, and the telescopic operation is performed by manually pulling out and pushing in the distal end. By press-fitting 25B,
Radio waves can be transmitted and received while the contracted state and the extended state of the antenna body 25 are maintained. The light section 6 as described above is provided also at the tip of the antenna main body 25 via the upper terminal 25A.

The light section 6 has a circuit board 6
The lighting circuit is not limited to the resonance circuit as shown in FIGS. 6 and 7, but various other known circuits are selected. can do.

[0027]

As is clear from the above description, according to the antenna for a portable telephone according to the present invention, since the light portion which is lit at the time of transmitting and receiving radio waves is provided at the tip of the antenna main body, the same illumination as the conventional one is obtained. Uses a modularized LED lamp such as a lead frame type LED as in the past, because it has an effect, especially since its light part is configured with a chip type light emitting diode surface mounted on a circuit board as a light source Compared to the light unit, the height of the light unit can be reduced to about half without impairing the brightness of the light unit. Not only does it have better storage capacity, it also increases production efficiency and looks good as a finished product.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing a mobile phone equipped with an antenna according to the present application.

FIG. 2 is a perspective view showing a partially broken telescopic guide of the antenna.

FIG. 3 is an enlarged sectional view showing the antenna partially cut away;

FIG. 4 is an exploded view of the antenna.

FIG. 5 is a schematic cross-sectional view showing an enlarged light portion at the tip of the antenna body in the antenna.

FIG. 6 is a circuit diagram for lighting a light unit.

FIG. 7 is another circuit diagram showing a modified example of the circuit diagram shown in FIG. 6;

FIG. 8 is a schematic diagram showing another embodiment of the antenna according to the present invention.

FIG. 9 is a front view showing a light portion of a conventional mobile phone antenna.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cellular phone 2 Antenna mounting part 3 Antenna 4 Telescopic guide 5 Antenna body 6 Light part 6A Base 6B Circuit board 6C Lens 61 Light emitting diode 62 Coil 63 Diode 64 Air discharge electrode 65 Light diffusion layer

Claims (3)

[Claims] 1. A light portion is provided at a tip of an antenna body,
In a mobile phone antenna, the light portion of which is turned on when a radio wave is transmitted and received by the antenna body, the light portion includes a chip-type light emitting diode surface-mounted on a circuit board as a light source, and a circuit board including the light emitting diode. An antenna for a mobile phone, wherein a lens that transmits light emitted from the light emitting diode is mounted on a mounted base. 2. A light portion is provided at a tip of the antenna body,
In a mobile phone antenna in which the light portion is turned on when transmitting and receiving radio waves by the antenna main body, the light portion includes a base fixed to the tip of the antenna main body, and a chip type light emitting device mounted on a circuit board mounted on the base. For a mobile phone, comprising: a resonance circuit formed by surface mounting a chip component including a diode; and a translucent lens which is placed on the base and emits light emitted from an inner light emitting diode to the outside. antenna. 3. A telescopic type comprising: a detachable cylindrical telescopic guide attached to an antenna mounting portion of a mobile phone; and a rod-shaped antenna main body movably and axially passed through the telescopic guide. An antenna for a mobile phone, wherein a light portion is provided at a tip of the antenna main body, which is turned on at the time of transmission / reception of radio waves by the antenna main body using a chip type light emitting diode surface-mounted on a circuit board as a light source. The other end is provided with a terminal for press-fitting into the lower end of the telescopic guide when the antenna main body is extended, and the elastic guide is deformed when the antenna main body is pushed down and elastically biases the antenna main body toward the front end side. A body and locking means for locking the distal end portion of the antenna body against the restoring force of the elastic body, wherein the elastic body is built in a telescopic guide and serves as a locking means. The antenna body is ejected toward the distal end thereof while restoring when the locking of the distal end of the antenna main body is released, and the antenna main body has a pressure receiving portion pressed by the elastic body at the distal end side. The terminal for a mobile phone, wherein the terminal is introduced into the telescopic guide and supported by injection by an elastic body.