JPH0722955Y2 - Wireless headphones - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to wireless headphones.

[Outline of device]

The present invention, in a wireless headphone using a secondary battery as an operating power source, a charging terminal for charging the secondary battery can be opened and closed by an opening / closing plate body that interlocks with an operation unit of a switch that switches the operating state of the headphone, By opening and closing the charging terminal with this opening and closing plate when wearing on the head,
This prevents the hair and the skin from touching the charging terminal and prevents corrosion and poor connection of the charging terminal.

[Conventional technology]

In recent years, as a headphone system, for example, “Japanese Patent Laid-Open No.
-82596 ”, a wireless headphone system has been put into practical use, which transmits a signal from a transmitter by infrared rays and receives the signal at a position away from the transmitter to enjoy music and the like.

Such wireless headphones require a power supply for operating an amplifier built in the headphones in order to reproduce the received signal as an audible signal. It is possible to use a secondary battery (storage battery) as this power supply. In this case, a charging terminal for charging the secondary battery is provided, for example, at a position corresponding to the head pad portion of the headband, that is, on the inner surface of the central portion of the headband, and at the time of charging, this charging terminal is connected to the supply terminal of the charger. It is configured to charge the secondary battery in the headphones.

[Problems to be solved by the device]

However, when the charging terminal is provided at a position corresponding to, for example, the head pad portion of the headband in this manner, when the headphones are worn on the head, the charging terminal exposed to the outside may cause hair or the background of the head to be bare. Therefore, there is a problem in that oil is attached to the charging terminal to corrode the charging terminal, or contact failure occurs when the charging terminal is connected to the charger to make charging impossible.

The present invention has been made in view of the above problems, and provides a wireless headphone capable of reliably preventing contact between a charging terminal and hair or the skin with a simple configuration, and solves the above-mentioned problems. With the goal.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a wireless headphone having a charging terminal for charging a secondary battery built in the headphone body, for example, as shown in FIGS.
As shown in the figure, an opening / closing plate body (25) is provided corresponding to the charging terminals (23a) and (23b) and linked with a switch operator (13) for switching the operating state of the headphones. When the headphones are operated, the through holes (24a) (24b) corresponding to the charging terminals (23a) (23b) are closed.

[Action]

In this way, the through holes (24) corresponding to the charging terminals (23a) (23b)
Since a) (24b) is closed by the opening / closing plate body (25), hair or skin does not come into contact with the charging terminals (23a) (23b) when the headphones are worn on the head, and therefore the charging is performed. Corrosion of terminals and poor connection can be prevented.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a wireless headphone system. Reference numeral (1) is a transmitter, and (2) is a wireless headphone, which is configured so that the infrared transmission light transmitted from the transmitter (1) is received by the wireless headphone (2) and reproduced and output as an audio signal. In addition, in this wireless headphone system, wireless headphones (2)
A secondary battery (storage battery) is used as the operating power source of
As will be described later, charging is performed by the charging function of the transmitter (1).

To describe this wireless headphone system in more detail, the transmitter (1) comprises a transmitter main body (3) and a script (4) supporting the transmitter main body (3), and the transmitter main body (3).
The audio signal input to is converted into infrared transmitted light and emitted from the front light transmitting unit (5). The transmitter body (3)
Is configured to be adjustable for ups and downs with respect to the legs (4),
As a result, the light transmission direction (angle) of the transmission light can be variably adjusted.

The transmitter body (3) also has a function as a charger for charging the secondary battery in the wireless headphones (2), and has a notch shape formed at the upper end of the transmitter body (3). The supply terminals (7a) and (7b), which are the output ends of the charger, project into the recess (6).

It should be noted that, although not shown, an input code and a power cord of an audio signal are derived from the transmitter main body (3) and are connected to an audio device and a power supply source, respectively.

Next, the wireless headphones (2) will be described in detail.
This wireless headphone (2) has a headband part (8) and a pair of left and right headphone unit parts (11) supported by hanger parts (9) and (10) at both ends of the headband part (8). And (12), and a speaker is incorporated in the headphone unit sections (11) and (12). (13) turns on the headphones
Switch operators to be turned off, and (14) and (15) are volume adjusting dials.

In the wireless headphones (2), the light receiving parts (16) are respectively provided at the central upper surface or the top part of the headband part (8) and the front side parts of the left and right headphone unit parts (11) and (12). , (17) and (18) are provided.
The light receiving parts (16), (17) and (18) are respectively provided with filter caps (16a) and (17) which satisfactorily transmit only infrared light.
Covered by a) and (18a).

The light receiving part (16) on the top of the headband part (8) is provided with a first light receiving element (19) having a light receiving surface (19a) facing rearward, and receives transmitted light reaching from the rear side. . The light-receiving sections (17) and (18) of the headphone unit sections (11) and (12) respectively have a light-receiving surface (20a) having a first light-receiving element (19).
The second light receiving element (2
0) is provided and receives the transmitted light arriving from the front side. When the light receiving element of any of the three light receiving parts (16), (17) and (18) receives the transmitted light, the transmitted light is demodulated into an audio signal and headphone unit parts (11) and (12). ) Is reproduced and output. With such a configuration, the transmitted light is received by any one of the light receiving sections regardless of the direction of the head wearing the wireless headphones, and a good reception state is always maintained.

In addition, as described above, this wireless headphone uses a secondary battery as an operating power source (this secondary battery is not shown in the drawings, for example, the headphone unit (11) or (1
2)), and a charging terminal portion (21) for charging the secondary battery is provided in the central portion of the headband portion (8).

That is, as shown in FIG. 3, an electronic circuit such as an amplifier circuit is formed in the filter cap (16a) on the top of the headband portion (8), and the first light receiving element (19) is mounted and supported. A circuit board (22) is provided, and charging terminals (23a) (23b) as input terminals of a secondary battery are formed on the lower surface of the circuit board (22). The charging terminals (23a) (23)
Corresponding to b), through holes (24a) and (24b) are formed on the lower surface side of the central portion of the headband portion (8).

When charging, the central portion of the headband (8) of the wireless headphones (2) is placed in the recess (6) of the transmitter body (3) as shown in FIGS. ) Supply terminals (7a) and (7b) are inserted into the through holes (24a) and (24b) so that the tips of the supply terminals (7a) and (7b) are connected to the charging terminals (23a) and (23b). Then, by operating the charging circuit in the transmitter body (3) in this state, the charging terminals (23a) are changed from the supply terminals (7a) (7b).
A current is supplied to the secondary battery in the wireless headphones (2) via (23b), that is, charging is performed. In this charging operation, the recess (6) of the transmitter body (3)
The orientation of the wireless headphones (2) placed on the
The orientation shown in the drawing or the opposite orientation may be used, that is, the charging can be performed regardless of the polarities of the supply terminals (7a) (7b) and the charging terminals (23a) (23b).

Then, in the charging terminal portion (21) of the wireless headphone (2), the charging terminals (23a) (23b) and the through holes (24
An opening / closing plate (25) for opening and closing the charging terminals (23a) and (23b) is provided between a) and (24b). The opening / closing plate (25) is configured to operate in conjunction with the power on / off operation of the wireless headphones. That is, a slide switch (26) for switching on / off the power of the wireless headphones is fixed on the circuit board (22), and an operating plate (26a) of the slide switch (26) has an opening / closing plate body (25). Are connected at a vertical surface portion formed at one end thereof. The switch operator (13) is integrally formed on the vertical surface of the opening / closing plate (25) and is exposed to the outside through a long hole (27) formed in the filter cap (16a). When the switch operator (13) is moved to the left or right, the slide switch (26) is actuated to switch the operating state of the wireless headphones, that is, to turn the power on / off, and at the same time, the opening / closing plate (25) slides to the left or right. It is made to move.

The opening / closing plate body (25) is provided with communication holes (25a) and (25b) corresponding to the communication holes (24a) and (24b), and when the switch operator (13) is in the off position, that is, wireless. When the headphones are not in operation, the communication holes (25a) (25b) and the communication holes (24a) (24b) correspond to each other, so that the communication holes (24a) (24b) are opened and the charging terminal (23a ) (23b)
Is exposed and can be charged (see Fig. 4, A ', A'and A ").

When the switch operator (13) is moved from this state to the on position, that is, when the wireless headphones are activated, the opening / closing plate (25) moves to cause the communication holes (25a) (2).
5b) does not correspond to the through holes (24a) (24b), so that the through holes (24a) (24b) are closed and the charging terminals (23a) (2
3b) is concealed (see B, B ′ and B ″ in the same figure). Therefore, in this state, when the wireless headphones (2) are worn on the head, hairs and the like are removed from the through holes (24a) (24b). It does not enter and contact the charging terminals (23a) and (23b).

Although one embodiment of the present invention has been described above, the present invention is not limited to the configuration of this embodiment and various embodiments can be adopted, and it goes without saying that this embodiment does not specify the present invention. Is.

[Effect of device]

As described above, in the wireless headphones of the present invention, the through holes corresponding to the charging terminals are closed by the opening / closing plate when operating, so that the hair or the skin becomes the charging terminals when the wireless headphones are mounted on the head. Since there is no contact, and therefore oil etc. does not adhere to the charging terminal, corrosion of the charging terminal and contact failure at the time of charging can be reliably prevented, and its practical effect is great. .

[Brief description of drawings]

FIG. 1 is a perspective view showing a wireless headphone system,
FIG. 2 is a perspective view showing a state in which the wireless headphones are being charged, FIG. 3 is a vertical sectional side view of a main part thereof, FIG. 4 is an explanatory view of the structure and operation of a charging terminal portion, and FIG. FIG. 6 is a partially cutaway front view, FIG. 6 is a rear view, and FIG. 7 is a right side view. In the figure, (2) is wireless headphones, (13) is a switch operator, (23a) and (23b) are charging terminals, and (25) is an opening / closing plate.

Claims (1)

[Scope of utility model registration request] 1. A wireless headphone having a charging terminal for charging a secondary battery built in a headphone main body, wherein an opening / closing plate body interlocking with an operating portion of a switch for switching the operating state of the headphone is provided. The wireless headphone characterized in that the through hole corresponding to the charging terminal is closed when the headphone operates.