JPH087986B2 - Connection configuration for audio equipment for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a connection structure in an automobile audio device.

<Prior Art and Problems Thereof> A so-called car stereo installed in an arbitrary place such as a dashboard of a car room is known. Conventionally, cassette decks have been widely used as audio equipment for automobiles, but in recent years, with the spread of digital audio equipment such as compact disc (CD) players and digital audio tape (DAT) players, these CDs, DAT, etc. There is an increasing demand for making software usable in automobiles.

In order to meet such demands, various CD players and DAT players for automobiles have been provided or proposed, but an opening space provided in a dashboard of an automobile for accommodating such an audio device is usually provided. In this case, there are one or two locations, and it is practically impossible to fixedly install different acoustic devices in the number of the opening spaces or more in the automobile.

A plurality of information playback devices such as a cassette deck and a CD player are installed in a single device, and this can be installed in the opening space of the dashboard from both directions,
Audio equipment for automobiles, which is configured so that it can be selected to be used as both information reproducing equipment, has also been proposed (Shokai 62-48
077 publication). In this case, if a plurality of information reproducing devices are to be incorporated in a single device, the devices inevitably become large. Furthermore, when such a device is installed in a limited opening space of a dashboard of an automobile, about half of the device is projected into the passenger compartment, which may hinder driving.

<Means for Solving Problems> The present invention was created in consideration of various circumstances in the above-described conventional technology, and provides a connection configuration in a plurality of audio equipment for automobiles adapted to various software. The main purpose is to provide. Particularly, when the present invention uses audio equipment such as a cassette deck, a CD player, and a DAT player for an automobile, output terminals of front and rear speakers, connection terminals such as an accessory input terminal for interlocking with an accessory switch of the automobile. However, focusing on that it is commonly deployed for all audio equipment,
It is intended to achieve the above object.

That is, the present invention provides a plurality of acoustic devices that have substantially common outer dimensions, are provided with connection terminal groups having a common arrangement at a common position, each have a power amplifier built therein, and each of which reproduces different software. A single sleeve that is configured to be commonly used and that is attached to an arbitrary opening in a vehicle compartment and has an inner dimension that corresponds to a common outer dimension of the acoustic device, and the plurality of acoustic devices in the sleeve. Connector means arranged on the back side of the sleeve so as to be fitted corresponding to the connection terminal group in the audio device when the audio device is housed, and the audio device is housed in the sleeve. When this occurs, power is supplied to the audio device by connecting the connection terminal group and the battery in the audio device, and the audio device is connected by connecting the connection terminal group and the speaker. Is reproduced by the speaker, and by connecting the connection terminal group and a separate audio device arranged at a different place from the audio device, the separate operation is performed in conjunction with ON / OFF of the audio device. External connection means connected to the connector means in order to turn on / off the audio device of (1), and the connection configuration in the audio device for automobiles.

<Operation> According to the present invention, various information reproducing apparatuses, such as a cassette deck, a CD player and a DAT player, have substantially common outer dimensions, and a common connection terminal group is arranged at a common position. Since the sleeve provided with the connector corresponding to the connection terminal group is provided in the opening space of, for example, the dashboard of the automobile, the information reproducing device according to the software desired by the user is selected to select the space. You can enjoy the software just by loading it inside.

<Embodiment> The embodiment shown in FIG. 1 is replaceably attached to a predetermined sleeve in an automobile, in particular, to a single sleeve fixed or detachably attached to an opening space formed in a dashboard. As a plurality of built-in tuner type head units configured to obtain, a cassette deck 10, a CD player 12
And a DAT player 14. These head units are configured to have the same outer dimensions in order to allow mounting on a single sleeve. Further, each of these head units has an operation panel on the front surface thereof, a series of connection terminal groups having a common structure is provided on the back surface thereof at a common position, and the signals flowing to the respective terminals are the same. is there.

Figure 2 shows a head unit (as an example, a cassette deck
10 is shown) immediately before being mounted on the sleeve, and the connection between the connection terminal group of the cassette deck 10 and an external device is the socket forming the connection terminal group in this embodiment. This is done via a 24-pin connector 18 (FIG. 1) consisting of 103 and a plug 102 attached to the inner part of the sleeve 101. Examples of this 24-pin connector include the part number CSS3124 (socket) and CS manufactured by SMK Corporation.
C3124 (plug) can be used. Thus, when the cassette deck 109 is completely inserted into the sleeve 101, each pin of the plug 102 attached to the rear side of the sleeve 101 is a socket provided on the rear side of the cassette deck 10.
It is fitted in each hole of 103 to make an electrical connection between them.

As shown in FIG. 1, the input / output signals in each head unit of the embodiment are output (SP O) for the front speaker 20.
UT (F), output for rear speaker 22 (SP OUT
(R)), AUX input (AUX IN), accessory input (AC) for powering from the battery via the accessory switch to work with the accessory switch of the automobile.
C), battery power input (BATT) for direct power supply from the battery, ground (GND) corresponding to the power input terminals of the above two systems, and its voltage changes in conjunction with the illuminance adjustment of various automobile instruments. It includes a light control input (LIGHT CONT) that controls the illuminance adjustment of the unit, an antenna input (ANT) that is connected to the antenna installed in the automobile, and a system control signal (SYS / CON). The system control signal (SYS / CON) is used to remotely operate the CD changer 16 installed in the rear trunk of a car, etc., separately from the head unit in the dashboard via the operation unit on the front panel of the head unit. Control signals sent to and received from the CD player, especially when the cassette deck 10 or DAT player 14 is selected and mounted as the head unit, the CD is set via the operation section of the front panel of the cassette deck 10 or the DAT player 14.
It is used to select and play back the CD in the changer 16 according to a preset program. The accessory power supply (ACC) turns the power of the head unit on and off in conjunction with the accessory switch. In addition, the battery power supply (BATT) holds various memories inside the head unit even when the accessory power supply is turned off, and is adjusted to a predetermined voltage via the stabilization circuit inside the head unit. It is arranged such that a constant voltage is always used for operating the head unit regardless of power consumption. In addition, each head unit outputs a control signal (POWER ANT ON / OFF) for operating a power antenna provided outside the vehicle in conjunction with ON / OFF of a tuner unit built in the head unit.
Furthermore, from each head unit, the power of the CD changer 16 is turned ON / OFF in conjunction with the ON / OFF of the power switch of the head unit.
A control signal (POWER ON / OFF) is output.

Each head unit in the present embodiment has a built-in 4-channel power amplifier and tuner. Of course, the tuner may be constructed separately from the cassette deck, the CD player, and the main body of the DAT.

Socket 103 of 24-pin connector 18 in this embodiment
An example of the arrangement of each terminal in the plug 101 is the following first
Shown in the table. In addition, a digital data bus (D) capable of bidirectional data transfer is provided on a transmission line for transmitting a system control signal (SYS / CON) for remotely operating the CD changer 16 by each head unit mounted on the dashboard sleeve 101. ² B) has been adopted. 9th pin and 1st
Pin 3 is a spare terminal for system control signal expansion.

An example of the pin arrangement of the connector 18b in the third embodiment shown in FIG. 3 is shown in Table 3 below.

In the embodiment described above, the power ON / OFF of the power amplifier or the like is controlled by using the control signal (POWER ON / OFF) different from the system control signal (SYS / CON). The control can also be configured to be performed by the system control signal (SYS / CON). Furthermore, it is sufficient for each head unit to be formed so that at least the outer size of the portion mounted inside the sleeve corresponds to the inner size of the sleeve, and the shape of the front operation panel of each head unit can be changed appropriately. Of course, it is a thing.

<Effects of the Invention> According to the present invention described above, the head units of various analog or digital audio devices such as cassette decks, CD players, and DAT players can be replaced, detached, and selectable in a dashboard of an automobile. Since it can be installed in a single sleeve installed in an opening space or the like, various kinds of software can be enjoyed in the vehicle interior.

[Brief description of drawings]

FIG. 1 is a schematic configuration block diagram showing an embodiment of the present invention, and FIG. 2 is a perspective view of essential parts regarding a mounting relationship between a head unit and a sleeve. Explanation of code 10: Cassette deck 12: CD player 14: DAT 18: Connector 101: Sleeve 102: Plug, 103: Socket

Claims (2)

[Claims] 1. A plurality of audio devices, each of which has a common outer dimension and has a connection terminal group having a common arrangement at a common position, each having a built-in power amplifier, each reproducing different software. A single sleeve that is configured to be shared and that is attached to an arbitrary opening in a vehicle compartment and has an inner dimension that corresponds to a common outer dimension of the acoustic device, and the plurality of acoustic devices in the sleeve. Connector means arranged on the back side of the sleeve so as to be fitted corresponding to the connecting terminal group in the audio device when the audio device is housed, and the audio device is housed in the sleeve. When this occurs, power is supplied to the audio device by connecting the connection terminal group and the battery in the audio device, and the audio machine is connected by connecting the connection terminal group and the speaker. Is reproduced by the speaker, and by connecting the connection terminal group and a separate audio device arranged at a different place from the audio device, the separate operation is performed in conjunction with ON / OFF of the audio device. And an external connection means connected to the connector means for turning on / off the audio device. 2. The connection structure in the audio equipment for automobiles according to claim 1, wherein the audio equipment has a tuner built therein.