JPH11176147A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which reproduces/records information by turning a disc-type information recording medium with batteries and whose thickness can be reduced substantially. SOLUTION: An electronic apparatus 1 which reproduces/records information by turning a disc-type information recording medium D has a main part 2, a driving means 40 which is provided in the main part 2 to turn the disc-type information recording medium D and a battery housing means 20 by which a plurality of batteries B for supplying a power to the driving means 40 are arranged in the main part 2 at an outside position in the outer circumference part of the disc-type information recording medium D so as to be electrically connected in series to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic apparatus for reproducing information or recording information by rotating a disk-shaped information recording medium.

[0002]

2. Description of the Related Art Information recorded on a disc-shaped information recording medium, for example, a compact disc (CD: trademark), is reproduced while being carried by a reproducing apparatus, which is, for example, a portable electronic device, to reproduce music and other information. You can enjoy. Generally, a player of this type of information recording medium is called a portable CD player or the like, as shown in FIGS. 14 and 15, and has a main body 200 and a lid 201. The lid 201 can be opened and closed with respect to the main body 200 by a hinge 202. By opening the lid 201 from the main body 200, a disc-shaped information recording medium (hereinafter, referred to as a disc) D mounted in the main body 200 can be attached and detached. It has become.

[0003] The lid 201 is provided to protect a disk and other parts arranged on the main body 200 side. In the examples of FIGS. 14 and 15, the operation buttons 203 and the like are arranged at the place of the lid 201.
There is also a type in which such operation buttons are arranged on the side. Since this type of player is a portable audio device, it needs to include a driving battery. As the battery, a commonly used AA battery, which is the most easily available except for some devices, is generally used.
As for the number of batteries, two or more batteries are required in order to supply power to the drive unit of the main body 200 and reproduce the information of the disk D. Generally, two AA batteries are often included. .

FIG. 16 also shows the internal structure of the conventional player shown in FIGS. 14 and 15, in which a main body (also referred to as a cabinet) 200 incorporates a driving means 204 for continuously rotating the disk D. ing. As described above, the two batteries 205, 205 are electrically connected in parallel at the lower portion of the disk D as shown in FIG.

[0005] As shown in FIGS. 16 and 17, conventional batteries 205 and 205 are in a parallel state and have respective diameters d.
Is 14.5 mm. Moreover, these batteries 205, 20
5 is held by the hold plate 206 of the main body 200, and the inner position of the outer peripheral portion 207 of the disk D is located below the inner peripheral portion. Therefore, the conventional player body 200
The largest thickness W1 of the lid 201 is very large, for example, about 28 mm. Moreover, as shown in FIG. 17, the main body 200 has a substrate 208 built therein,
If a part of the substrate 208 is not cut out, the battery 205,
205 cannot be held between the hold plate 206 and the bottom plate of the main body 200, and the area of the circuit board 208 cannot be made sufficiently large in accordance with the size of the accommodation space of the main body 200.

The thickness of a normal mass-produced driving means (also referred to as a mechanical deck) 204 is, for example, 11 mm from the signal surface of the disk D,
The diameter d of 5,205 is 14.5 mm as described above, and the thickness of the lower body 200 portion of the disk D is determined by the presence of AA batteries. In a portion above the disk D, a clearance C1 is required between the chucking portion 209 fixing the disk D and the lid 201. The clearance C1 needs to be, for example, 1.5 mm, and the thickness of the chucking portion 209 is, for example, 3.5 mm from the signal surface of the disk D. The thickness of the chucking portion 209 and the clearance C1 are absolutely necessary to absorb a dimensional error of the disk D. Therefore, the thickness of the upper portion of the disk D is determined depending on the selection of the material for forming the lid 201.

The maximum thickness W1 of the player as shown in FIGS. 16 and 17 is determined by the thickness of the lower part of the disk D and the thickness of the upper part of the disk D. Outer diameter (diameter) of 14.5
mm. Therefore, when using AA batteries, the largest thickness W1 of the player cannot be reduced by a normal component arrangement except for the method of reducing the plate thickness of the main body 200 and the lid 201 which are cabinets.

[0008]

Therefore, when a general-purpose plastic, such as ABS (acrylonitrile butadiene styrene) or polycarbonate, which is generally used, is employed, if the diameter of the disk D is about 120 mm, In order to mass-produce with sufficient strength and appearance without hindrance, the thickness is 1.
It is required to be 8 mm to 2.0 mm, and it is not practical to reduce the thickness more than that. For this purpose, it is necessary to use a sheet metal (for example, aluminum) or an engineering plastic (for example, carbon fiber reinforced nylon, glass fiber reinforced ABS, etc.) in order to reduce the largest thickness W1 of the conventional player. Unavoidable. Even if a sheet metal or an engineering plastic is used, in order to obtain sufficient strength, the thickness of the sheet needs to be 1.0 mm to 1.2 mm. Even in this case, the largest thickness W1 is obtained. Can be reduced only by about 2 mm, and when the battery is arranged under the disk D, the thickness W1 can be reduced only to about 25.5 mm, for example. Therefore, the present invention solves the above-mentioned problems, and is an electronic device that reproduces information or records information by rotating a disk-shaped information recording medium using a battery. The purpose is to provide equipment.

[0009]

SUMMARY OF THE INVENTION The object of the present invention is to provide an electronic apparatus for reproducing information or recording information by rotating a disk-shaped information recording medium. Driving means for rotating the arranged disc-shaped information recording medium, and battery storage means for disposing a battery for supplying power to the driving means at a position outside the outer periphery of the disc-shaped information recording medium in the main body This is achieved by an electronic device characterized by comprising:

An electronic device according to the present invention has a main body. The drive means of this electronic device is arranged on the main body and rotates a disk-shaped information recording medium. The battery housing means is capable of disposing a battery for supplying power to the driving means at a position outside the outer peripheral portion of the disc-shaped information recording medium in the main body. Thus, the batteries can be arranged at positions outside the outer peripheral portion of the disc-shaped information recording medium, so that the disc-shaped information recording medium and the batteries do not interfere with each other in position. , That is, the thickness of the electronic device in the axial direction can be reduced. In the present invention, preferably, the lid is attached to the main body so as to be openable and closable, and the hinge axis for opening and closing the lid is preferably located substantially in the arrangement direction of the plurality of batteries in the battery storage means. Since the lid can be opened and closed along the arrangement direction of the plurality of batteries, the electronic device can be further thinned.

[0011]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limits are given, the scope of the present invention is not limited to these modes unless otherwise specified in the following description.

FIGS. 1 and 2 show an example of a so-called portable player which is portable and can reproduce an information recording medium as an embodiment of the electronic apparatus of the present invention. The electronic device 1 has a main body (also called a cabinet) 2 and a lid (also called an upper lid) 3. A disc-shaped information recording medium (hereinafter, referred to as a disc) D which is detachably attached to the main body 2 of the portable electronic device is, for example, a compact disc (CD, trade name) as an example of an optical disc. . This disk D
Is 12 cm in diameter, for example, and the disk D has a three-layer structure of a protective layer, an aluminum reflective layer and a plastic substrate. Fine pits are formed in the plastic substrate, and an aluminum reflective layer is disposed in the pit portion, and the aluminum reflective layer is protected by a protective layer. The pits record information such as digitized music. That is, information such as music is divided in a time series, and its intensity is converted into a binary signal (digital signal) of “0” or “1” and recorded. The pits of the disk D are arranged in a size corresponding to the content of the signal. The pit is irradiated with a laser beam from the optical pickup 3A shown in FIG. 2 through the transparent plastic substrate to the aluminum reflection layer side, which is the signal recording surface of the disk D, and receives the return light to generate an electric signal. You can convert it to sound.

As shown in FIG. 1, a display section 60 for displaying various information and various button operation sections 62 are provided on the lid 3. The display unit 60 can employ, for example, a liquid crystal display panel, and can display various data related to reproduction information of the disk D. The main body 2
As shown in FIG. 2, a chucking unit 4, the above-described optical pickup 3A and the like are provided. This chucking part 4
Can detachably hold the disk D. The optical pickup 3A slides in the radial direction M of the disk D by the operation of the motor.

A slide operation section 5 is provided on the front side of the main body 2. When the slide operation section 5 is moved in the direction of arrow P, the cover 3 is disengaged from the main body 2 and is moved in the direction of arrow R. The lid 3 is hinged by the spring force.
Can be opened via On the side surface of the main body 2, a power switch 6, a hole 7 for an earphone jack, a connection hole 8 for a converter for connecting to a commercial AC power supply, and the like are formed.

The body 2 and the lid 3 shown in FIGS. 2 to 4 can be made of metal or plastic. As a metal that can be used, for example, aluminum or a magnesium alloy can be used. When a plastic is used, an engineering plastic (eg, carbon fiber reinforced nylon, glass fiber reinforced ABS, etc.) or a general-purpose plastic (ABS, polycarbonate, etc.) is used. be able to. In any case, the use of metal or engineering plastic can further reduce the thickness of the electronic device as compared to using general-purpose plastic.

As shown in FIG. 2 and FIG.
0 is provided with battery storage means 20. The battery housing means 20 is formed in the rear portion 10 of the main body 2 and, for example, as shown in FIGS.
The batteries B, B can be electrically connected in series and can be held and accommodated. This battery storage means 20
, The arrangement direction S of the plurality of batteries B, B preferably coincides with or substantially coincides with the rotation center axis CL of the hinges 30, 30 of the lid 3 shown in FIG.

FIG. 7 is a cross-sectional view taken along line FF in FIG. 3, and shows an example of the internal structure of the electronic device 1. The main body 2 accommodates a driving unit 40 for continuously rotating the disk D, a circuit board 42, a chucking unit 4, and the like. The lid 3 protects the chucking unit 4, the driving means 40, and the optical pickup 3A and the disk D shown in FIG. The board 42 is arranged in a housing space in the main body 2, and is arranged in parallel with the bottom surface 2 a of the main body 2 in a portion between the driving means 40 and the battery housing means 20 in the sectional view of FIG. The driving means 40 is fixed to the main body 2 by a fixing part (not shown). The chucking unit 4 can continuously rotate the disk D by a motor TM built in the driving unit 40. Drive means 40
Can accommodate the optical pickup 3A described above. That is, the driving unit 40 has a function of optically reading information on the disk D while continuously rotating the disk D. The two batteries B supply power to the motor MT of the driving means 40 and the optical pickup 3A.

The battery housing means 20 shown in FIG. 7 has an end 2b of the bottom surface 2a of the main body 2, an outer surface 2c having a substantially circular shape, a horizontal plate 2d, and the like. The horizontal plate 2d also has a function of shielding between the disk D and the substrate 42. Two batteries B,
B can be held so as not to come off by the outer surface 2c and the end 2b of the bottom surface 2a. As shown in FIGS. 7, 8 and 9, the outer surface portion 2c has an arc shape as described above,
Moreover, the rear end 3a of the lid 3 is also curved. This allows
When the lid 3 is opened in the direction of the arrow R as shown in FIG. 9, the rear end 3a moves substantially along the outer surface 2c. In the opening / closing operation of the lid 3 with respect to the main body 2, the rear end 3 a of the lid 3 smoothly moves along the outer surface 2 c of the main body 2. This is because the rotation center axis CL of the lid 3 is substantially aligned with the arrangement direction S of the batteries B housed in the battery housing means 20.

The most characteristic feature is that the battery housing means 20 shown in FIG. 7 is arranged at a predetermined position on the main body 2 at a position outside the outer peripheral portion 50 of the disk D. That is, the batteries B, B and the battery storage means 20 are arranged at positions where they do not interfere with the rotation of the disk D at all. As a result, the arrangement position of the disk D is
Regardless of the existence of the battery housing means 20, the disk D can be disposed much closer (lower) to the substrate 42 and the bottom surface 2a of the main body 2 in the rotation axis AX direction of the disk D than in the conventional case. The driving means 40 and the chucking unit 4 are
Can be adopted as much as possible on the bottom surface 2a side.
Even in such a case, the disk D is mounted on the substrate 42 or the horizontal plate 2.
It can be rotated without interfering with d or the main body 2.

Next, the structure of the battery housing means 20 will be further described with reference to FIGS. Battery storage means 20
Has an opening / closing lid 70 on the bottom face 2f side of the main body 2 as shown in FIGS. The opening / closing lid 70 can be opened in the G direction about the central axis 72. Two batteries B, B can be housed in series inside the battery housing means 20.

As shown in FIGS. 11 to 13, the features are as follows. One positive terminal 8 of one battery B
The reference numeral 0 indicates that the first contact portion 90 can be electrically positively pressed by using an elastic force to make contact therewith. On the other hand, the second contact portion 95 is a coil spring or a helical spring, and is electrically and positively pressed against the negative pole (the other end) 81 of the other battery B by using an elastic force. Have been. Moreover, these batteries B, B arranged in series are detachably held by battery receiving parts 100, 101 provided integrally with the main body 2 shown in FIG. As shown in FIG. 12 and FIG.
Has an elastic portion 91 and a holding portion 92. Elastic part 91
The holding portion 92 and the holding portion 92 can be formed by punching a conductive metal plate, for example.
A groove 93 is formed between the two. The elastic portion 91 can apply an elastic force to the battery B by using the connecting portion 94 to the holding portion 92.

The first contact portion 90 is attached to the mounting portion 99 of the main body 2,
It is adapted to be firmly held through 104.
On the other hand, the mounting base of the second contact portion 95 is fixed to the main body 2. By doing so, the two batteries B are
By using the respective elastic forces of the first contact portion 90 and the second contact portion 95, the first contact portion 90 and the second contact portion 95 can be supported by being electrically sandwiched and positively pressed.

As described above, the first contact portion 90 and the second contact portion 9
The reason why the batteries 5 are used to positively and elastically press and hold the batteries B in the arrangement direction and elastically is as follows. In the electronic device as shown in the figure, for example, if the electrical contact between the battery and the contact portion is always in contact, the electronic operation will not be interrupted. If the contact portion is fixed and the other contact portion is elastically supported, holding two or more batteries will give vibration when carrying around a portable electronic device. In such a case, the electrical contact between the positive terminal or the negative terminal of the battery and the corresponding contact portion may be interrupted momentarily or temporarily. If the electrical contact is interrupted in this way, the power supply from the battery to the driving means and the like is momentarily or temporarily interrupted, and the electronic circuit of the driving means does not operate.
Accordingly, if the electrical connection of the battery is interrupted while the disk D is being played back using, for example, an optical pickup, the playback operation is stopped immediately, and the battery Even if the power supply is restarted by contacting the contact portion, it is not possible to return to the CD reproducing operation from the stop operation.

In order to avoid this, a first contact portion 90 and a second contact portion 95 as shown in FIGS.
It is necessary to ensure that the electrical contact of a plurality of batteries is not interrupted even when vibration is constantly applied by using a battery. In the above-described embodiment, as shown in FIG. 7, in the electronic device 1, the distance between the cover 3 and the disk D is not much different from that in the related art in order to secure the clearance CL. However, in the lower part of the main body 2, that is, in the lower part of the disk D, the battery housing means 20 is located on the position T side further outside the outer peripheral portion 50 of the disk D, so that the largest thickness of the electronic device 1 By reducing W, the thickness of the electronic device 1 can be significantly reduced. In this case, for example, the thickness of the driving means 40 may be secured, for example, about 11 mm from the signal surface of the disk D.

The electronic apparatus 1 according to the embodiment shown in FIG. 7 of the present invention has a thickness W of, for example, about 7.5 mm and a thickness reduction of about 20% as compared with a conventional portable player.
Actually, when this kind of portable electronic device 1 is used, it is necessary to improve the vibration resistance in order to perform the reproducing operation of the disk D without hindrance when carrying it. In addition, a driving means 40 called a nikanical deck
, It is necessary to provide a clearance of about 1.0 mm to 1.5 mm in the periphery of the electronic device 1 of FIG. 7 of the present invention. W can be reduced by about 6.0 mm.

In the embodiment shown in FIG. 7, there is no particular factor to increase the cost, and a significant reduction in thickness can be achieved without changing the cost. In addition, since the substrate 42 can be disposed very close to the battery B side of the battery storage means 20, the substrate can be effectively used to make use of the space of the main body 2 and the size can be increased. Also, the batteries are not limited to AA batteries,
Even when other types of dry batteries such as AAA batteries or other types of batteries are used, the electronic device 1 can of course be made thinner.

In the illustrated example, the battery housing means 20 is located on the rear side of the electronic device 1 and is arranged substantially coaxially with the hinges 30, 30 of the lid 3, but is not limited to this. Of course, it is also possible to dispose it at a portion, and any position may be used as long as it is located outside the outer peripheral portion 50 of the disk D. The body and lid, also called the cabinet,
Plastic may be molded or metal may be formed by bending. In any case, the thickness can be reduced. Also, the number of batteries is not limited to two, and one or three or more batteries can be connected in series.

Further, as a disc-shaped information recording medium,
Although a compact disk is described, the invention is not limited to this, and a high-density recording medium, for example, a laminated high-density recording medium, for example, a high-density recording disk also called a digital versatile disk or a digital video disk (trademark) Also, the electronic device of the present invention can be applied to an electronic device that reproduces information on an information recording medium such as a magneto-optical disk or a hard disk, or records information on these information recording media.

[0029]

As described above, according to the present invention,
An electronic device that reproduces information or records information by rotating a disc-shaped information recording medium using a battery, and can achieve a significant reduction in thickness.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a portable player as an example of an electronic apparatus according to the invention.

FIG. 2 is an exemplary perspective view showing a state in which a cover of the electronic apparatus of FIG. 1 is opened;

FIG. 3 is an exemplary plan view showing the internal structure of the electronic device of FIGS. 1 and 2 and the arrangement of batteries;

FIG. 4 is an exemplary front view of the electronic device of FIG. 3;

FIG. 5 is an exemplary rear view of the electronic apparatus in FIG. 3;

FIG. 6 is an exemplary side view of the electronic device in FIG. 3;

FIG. 7 is a sectional view taken along line FF in FIG. 3;

FIG. 8 is an exemplary perspective view of the electronic apparatus as viewed from the rear side;

FIG. 9 is an exemplary perspective view of a state in which a cover of the electronic apparatus is opened, as viewed from a rear side;

FIG. 10 is an exemplary perspective view of the back side of the main body of the electronic apparatus;

FIG. 11 is a perspective view showing a state where a lid of the battery storage means is opened.

FIG. 12 is a perspective view showing an example of a battery storage unit.

FIG. 13 is a side view showing an example of the battery storage means.

FIG. 14 is a perspective view showing an example of a conventional portable information recording medium player.

FIG. 15 is a diagram showing a state in which the lid of the conventional player of FIG. 14 is opened.

FIG. 16 is a plan view of a conventional player.

FIG. 17 is a cross-sectional view of the conventional player taken along line JJ in FIG. 16;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Electronic device, 2 ... Body, 3 ... Lid, 20.
..Battery accommodating means, 40 ... driving means, B ... battery, D ... disk (disk-shaped information recording medium),
W: thickness of electronic equipment

Claims (5)

[Claims] 1. An electronic device for reproducing information or recording information by rotating a disc-shaped information recording medium, comprising: a main body; and a drive arranged on the main body for rotating the disc-shaped information recording medium. Means, and battery storage means for electrically connecting and arranging a plurality of batteries for supplying power to the driving means in series outside the outer peripheral portion of the disk-shaped information recording medium in the main body. And electronic equipment. 2. The driving means has a mounting portion on which a disc-shaped information recording medium is removably mounted, and is opened and closed on the main body when the disc-shaped information recording medium is mounted on and dismounted from the mounting portion of the main body. 2. The electronic apparatus according to claim 1, further comprising a cover, wherein a hinge axis for opening and closing the cover substantially coincides with an arrangement direction of the plurality of batteries in the battery storage means. 3. The electronic device according to claim 2, wherein a portion of the main body at which the hinge is provided has a curved surface. 4. The electronic device according to claim 1, wherein the electronic device is portable, and an arrangement direction of the plurality of batteries is orthogonal to a rotation axis of the disc-shaped information recording medium. 5. The electronic apparatus according to claim 1, wherein the battery housing means electrically connects and arranges a plurality of batteries in series.