JP3070304U - Light emitting device for mobile phone - Google Patents

Abstract

(57) [Abstract] [Object] It is an object of the present invention to provide a light emitting device of a mobile phone which can improve visibility and fashionability without lowering communication sensitivity. A mobile phone is provided near a tuning antenna (16) in a tuning circuit of a light emitting device (8) equipped with a tuning circuit (12) for tuning to a transmission / reception carrier of a mobile phone (1) and a light emitting unit (10) emitting light at the output of the tuning circuit (12). A pickup 9 surrounding the antenna rod 2 is provided, and a double-sided adhesive tape 15 is provided on the light emitting device 8 so that the light emitting device 8 can be attached to the upper surface 3 of the mobile phone 1.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention relates to a light-emitting device of a mobile phone which notifies that a mobile phone is in a transmission / reception state by lighting a light-emitting body.

[0002]

[Prior art and problems]

 In recent years, light-emitting devices that allow the user to know when a mobile phone is in a call receiving state by lighting a light-emitting diode have been actively used. The light-emitting device consists of an LC resonance circuit that tunes to the carrier wave (high frequency) transmitted and received by the mobile phone, and a light-emitting diode (LED) as a light-emitting body. The DC voltage is generated by detection rectification, and the DC voltage is emitted. It is the lighting power of the diode.

[0003] The light emitting device is attached to the tip of an antenna rod of a mobile phone, and one light emitting diode of a color excellent in visibility at the time of lighting is selected as a light emitting body mounted on the light emitting device. It has been provided. In addition, recently, in order to further improve visibility and fashionability, those equipped with a plurality of light emitting diodes have appeared, and the visibility and fashionability are several steps higher than those with one conventional light emitting diode. Began to improve.

[0004] However, although visibility and fashionability have been improved, those equipped with a plurality of light emitting diodes have a longer overall length of the light emitting device, and the antenna to which the light emitting device is attached loses a balance of functions. This has caused a decrease in communication sensitivity. In addition, since the total length of the light emitting device has become longer, the light emitting device at the tip of the antenna rod is considerably protruding even though the antenna rod is housed in the mobile phone, which may be a hindrance when carrying the mobile phone. Or the light emitting device could be damaged.

[0005]

【Purpose】

 The present invention has been made in view of the above-described problems, and has as its object to provide a light emitting device of a mobile phone that can improve visibility and fashionability without lowering communication sensitivity.

[0006]

[Means to solve the problem]

 The gist of the present invention is to provide a tuning circuit that tunes to a carrier wave transmitted and received by a mobile phone, and a light emitting device equipped with a light emitter that is turned on by the output of the tuning circuit, wherein the tuning circuit includes an antenna of the mobile phone. A light emitting device for a mobile phone, comprising a conductor surrounding a rod, and wherein the device is configured to be attachable to a main body of the mobile phone.

A mobile phone to which the present invention is applied is a device that performs wireless communication, and includes all wireless devices that perform communication using high-frequency transmission / reception carrier waves. Antenna rods for transmitting and receiving carrier waves are antenna means for transmitting and receiving the radio waves, and the total length of the transmitting and receiving antennas is fixed or variable.In general, the length can be adjusted to enhance the tuning effect. There are many things to do.

The tuning circuit that tunes to the transmission / reception carrier of the mobile phone includes an LC resonance circuit or the like. For example, a coil serving as a tuning antenna that is electromagnetically coupled to the transmission / reception carrier of the mobile phone is provided on a printed circuit board. It is equipped with a diode and is connected to a capacitor or virtual capacitor means having a capacitor function. Then, a luminous body such as an LED is turned on using the DC voltage generated by the tuning circuit as driving power.

In addition, the tuning circuit is provided with a conductor (antenna pickup) surrounding the antenna rod of the mobile phone, and specifically, from one end of a coil serving as a tuning antenna that is electromagnetically coupled to a transmission / reception carrier of the mobile phone. It is provided branched. Surrounding refers to a mode in which the antenna rod orbits the support or base of the antenna rod. The number of laps may be about one lap or a half lap or less, or more, and may be set to a lap number at which a better tuning effect can be obtained.

The conductor is not particularly limited, and may be a normal wire (covered wire / piano wire, etc.), a conductor material, or a coil-shaped wire. The wire or conductor material may have elasticity. It may be possible to paste. Further, the conductor is not limited to a form provided separately from one end of the coil, and may be a coil serving as a tuning antenna provided in a tuning circuit.

[0011] The type, shape, color, and quantity of the LED serving as the light emitting body are not particularly limited. Further, suitable control means (IC control or the like) for controlling lighting or blinking may be provided. Further, at least the light-emitting body or the entire light-emitting device may be covered with a translucent resin, specifically, transparent or colored silicon or acrylic. The coating may be in any form, and the luminous body may be covered with a ball-like or cut-glass-like lens, or the whole may be integrally coated.

When a printed circuit board is used, the printed circuit board may be anything, and a printed circuit board on which a normal electric circuit is printed may be cut into small chips. The coil may be provided with a coil that can be electromagnetically coupled in accordance with a transmission / reception carrier (high frequency) generated in the antenna rod, that is, a coil tuned to the transmission / reception carrier. More specifically, it may be a normal coil part or a pattern-printed coil, and in that case, the coil may be printed on both sides of the substrate to increase the gain. The form of the coil to be printed is not particularly limited, and may be a substantially flat wound coil.

The present light emitting device is preferably configured to be attached to a main body of a mobile phone, and the attaching method is not particularly limited. Specifically, the light emitting device may be attached to the mobile phone with a double-sided adhesive tape. The attachment site is not particularly limited, either, but it is preferable to attach it to the upper part of the main body of the mobile phone so that the conductor can easily surround the antenna rod of the mobile phone.

[0014]

[Action]

 Since the light-emitting device of the present invention is configured as described above, if the mobile phone is in the transmitting / receiving state, a voltage is generated on the antenna rod, and the tuning antenna or coil, which is electromagnetically coupled to the antenna rod, is excited, The voltage is rectified into a DC voltage by a diode and supplied to an LED, which is a light emitter, to light up. In addition, the conductor surrounding the antenna rod improves tuning efficiency.

[0015] Further, those having control means such as IC control can control the lighting or blinking of the LED by this. The light emitting device can be mounted on the upper part of the mobile phone by using a double-sided adhesive tape provided on the bottom of the device.

[0016]

【Example】

 The light-emitting device of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a mobile phone to which the light-emitting device is attached, where 1 is a mobile phone, 2 is a stored antenna rod, and 3 is a mobile phone 1. The upper face 4 is the front face of the mobile phone 1 having the earpiece 6 and the mouthpiece 7, and 5 is an existing incoming light for notifying the incoming call. Reference numeral 8 denotes a light emitting device according to the present invention, 9 denotes a pickup surrounding the antenna rod 2 of the mobile phone 1, and 10 denotes a light emitting unit that emits light when the mobile phone 1 is in a transmission / reception state.

FIG. 2 is a plan view of the mounted light emitting device as viewed from above, and a pickup 9 extending from the light emitting device 8 main body surrounds the antenna rod 2 of the mobile phone 1. This improves the tuning effect.

FIG. 3 is a front view showing the inside of the light emitting device. Reference numeral 11 denotes a printed circuit board, which is provided with a tuning circuit 12, an LED 13, and a tuning antenna (coil) 16. Therefore, when the mobile phone 1 is in the transmission / reception state, the tuned antenna (coil) 16 of the tuning circuit section 12 captures the transmission / reception-like carrier wave to generate a DC voltage, and the LED 13 is turned on by the DC voltage. The pickup 9 extends from the vicinity of the tuning antenna (coil) 16 of the tuning circuit section 12. Reference numeral 14 denotes a cover made of a translucent resin that covers the entire light emitting device 8, and reference numeral 15 denotes a double-sided adhesive tape for attaching the light emitting device 8 to the upper surface 3 of the mobile phone 1.

FIG. 4 is a front view showing an example of the design of the light emitting device. Unlike the conventional light emitting device provided at the tip of the antenna rod of the mobile phone, the design can be freely created.

FIG. 5 is a circuit diagram showing an electric circuit of the light emitting device. 11 is a printed circuit board, 13 is an LED, 16 is a tuning antenna (coil), 17 is a diode, and 18 is a virtual capacitor, which may not have a real state. 19 is an IC controller, and 9 is a pickup. (A) shows that the pickup is separate from the tuning antenna, and the pickup 9 extends from the vicinity of the tuning antenna (coil) 16. In the figure, the pick-up 9 has the number of turns of one or less, but may be wound one or more times. (B) shows that the pickup is also used as a tuned antenna. In the figure, the pickup 9, that is, the tuned antenna (coil) has less than one turn, but may be wound more than one turn. (C) shows an electric circuit provided with an IC controller, in which an IC controller 19 is provided in the electric circuit of (a). Of course, the IC controller 19 may be provided in the electric circuit of (b).

[0021]

【effect】

 As described above, the light-emitting device of the present invention can be mounted on the upper part of the main body of the mobile phone, so that the total length of the transmitting and receiving antennas does not change, and the ideal antenna length is obtained, thereby lowering the communication sensitivity of the mobile phone. There is no. In addition, even when the antenna rod is stored or the mobile phone is carried, the light emitting device does not protrude from the stored antenna rod and does not become an obstacle.

Since the mounting portion of the light emitting device is at the upper part of the main body of the mobile phone, there is room in terms of space, and a wide variety of LEDs can be used as the light emitting body. Since it can be arranged freely, such as vertically, it is advantageous for improving visibility. In addition, the cover of the LED or the light emitting device can be formed in a shape having excellent fashionability.

[Brief description of the drawings]

FIG. 1 is a perspective view of a mobile phone to which a light emitting device is attached.

FIG. 2 is a plan view of the attached light emitting device as viewed from above.

FIG. 3 is a front view showing the inside of the light emitting device.

FIG. 4 is a front view illustrating an example of a design of a light emitting device.

FIG. 5 is a circuit diagram showing an electric circuit of the light emitting device. (A) A pickup in which the pickup is separate from the tuning antenna. (B) A pickup in which the pickup is also used as the tuning antenna. (C) An IC controller is provided. Showing an electric circuit

[Explanation of symbols]

1-mobile phone, 2-antenna rod, 3-top surface, 4-
Front, 5-ring, 6-ear, 7-mouth, 8-light-emitting device, 9-pickup, 10-light-emitting section, 11-printed circuit board, 12-tuning circuit, 13-LED, 14-coating , 15-double-sided adhesive tape, 16-tuning antenna (coil), 17-diode, 18-virtual capacitor, 19
-IC controller

Claims (4)

[Utility model registration claims] 1. A light-emitting device comprising a tuning circuit for tuning to a carrier wave transmitted and received by a mobile phone, and a light-emitting device which is turned on at the output of the tuning circuit, wherein the tuning circuit includes a conductor surrounding an antenna rod of the mobile phone. Provided, and
A light emitting device for a mobile phone, wherein the device is configured to be attachable to a body of the mobile phone. 2. A light emitting device for a mobile phone according to claim 1, wherein said conductor is a tuned antenna electromagnetically coupled to a carrier wave transmitted and received by said mobile phone. 3. A light emitting device for a portable telephone according to claim 1, further comprising control means for controlling lighting or blinking of said light emitting body. 4. The light-emitting device of a mobile phone according to claim 1, wherein at least the light-emitting body or the entire light-emitting device is covered with a translucent resin.