JPH09296U - Thin electronic device structure - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To improve mechanical strength, maintainability, and easy attachment / detachment of a battery as a device becomes thinner. SOLUTION: A frame 11 has a side wall surface and a ceiling surface 11a.
The ceiling surface 11a is provided with notches for avoiding circuit components mounted on the printed circuit board 20. The rear surface of the frame 11 is covered and fixed by the rear cover 30.

Description

[Detailed description of the device] [Technical field to which the invention belongs]

 The present invention relates to a thin electronic device structure such as a receiver for individual calling, and more particularly to a thin electronic device structure having excellent mechanical strength, maintainability, and easy battery attachment / detachment accompanying the thinning of the device.

[0001]

[Prior art]

 Conventionally, in a thin electronic device such as an individual calling receiver of this type, a mounting structure represented by a pager or the like has been adopted. FIG. 12 shows an example of the configuration of a conventional individual call receiver.

As shown in the figure, a conventional individual call receiver is a printed board on which electronic parts are mounted in a casing formed of a plastic case 1, a cover 2 and a battery cover 3. Is housed.

As the battery 5, a AAA dry battery is used. The battery 5 is held in a battery case 6 integrated with the printed board 4. When the battery 5 is replaced, only the battery cover 3 can be removed and replaced.

In such an individual calling receiver, the thickness thereof is determined by the diameter of the battery 5 and the total thickness of the plastics constituting each component.

[0005]

[Problems to be solved by the device]

 The individual call receiver is generally called a pager, and as its name suggests, there is a demand for the user to carry it in a pocket.

However, in the conventional thin electronic devices such as the above-described individual call receivers, which have a shape like a match box using an AAA battery, and have a large thickness, for example, a Y-shirt It had the problem that it was not suitable for carrying in a chest pocket. Explaining in detail below, in the above-described conventional mounting structure, there is a limit in pursuing the lightness, thinness, shortness, and miniaturization required for this type of equipment, particularly in the pursuit of "thinness".

First, in the processed surface of the plastic case 1, there is a minimum dimension required at the time of molding, and it is impossible to mold it below that.

Further, when the wall thickness of the case is reduced, the case has no durability against mechanical strength such as drop impact, bending, and twisting. In addition, in order to achieve the target thinning, it is necessary to switch the battery shape from the AAA type dry battery to the button or coin type. At the same time, there arises the problem of how to effectively utilize the limited mounting space and how to secure the strength of the housing by using existing materials. Furthermore, it is also important to ensure the maintainability required for this type of equipment. This is because at the present time, no service company has implemented a system to discard the equipment when it breaks down.Even if the breakdown is caused by the carelessness of the user, it will be repaired and reused. This is because is common.

The present invention has been made in view of the above-mentioned problems, and is a thin electronic device structure that is thin and can be carried in a chest pocket, etc., and yet has high mechanical strength and maintainability. For the purpose of providing.

[0010]

[Means for Solving the Problems]

 In order to achieve the above object, a thin electronic device structure according to a preferred embodiment of the present invention is formed integrally with a resin frame part (11) so as to cover a first opening surface of the frame part. A frame surface (11a), a first cover (12) fixed to the frame surface, a printed board (20) on which a circuit component accommodated from the second opening surface of the frame portion is mounted, It has a notch part provided on the frame surface to prevent the circuit component and a second cover (30) fixed to the frame part covering the second opening surface.

The first cover is preferably formed to cover the frame surface and the frame portion.

The first cover is preferably fixed by adhesion.

The second cover is preferably fixed with a screw.

It is preferable that the second cover has a cosmetic label attached with a removable adhesive.

A battery accommodating portion that is inserted from a notch portion provided in the frame portion and accommodated between the first cover and the second cover, and the battery accommodating portion engages with the notch portion. It is preferable to have a battery pack in which one end of the battery pack is formed so as to be substantially flush with the frame, and a convex portion is formed on the surface of the one end.

It is preferable that the protrusion is a plurality of cylinders.

[0017]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an external perspective view of an individual call receiver (hereinafter referred to as a receiver) to which the thin electronic device structure according to the present invention is applied, FIG. 2 is an external perspective view from the same different angle, and FIG. FIG. 4 is an exploded perspective view, and FIG. 4 is a partial cross-sectional view in the thickness direction.

The basic configuration of the receiver of this embodiment is that a case 10, a printed board 20 housed in the case 10, a rear cover 30 covering the printed board 20, and a rear cover 30 fixed to a frame. A plurality of screws 40, a decorative label 50 attached to the back surface of the rear cover 30, and a battery pack 60 housed in the case 10.

The case 10 includes a plastic frame body 11 and a thin metal front cover 12 integrally fixed to the front surface of the frame 11.

Since the frame 11 has the smallest wall thickness, it has low durability and strength against bending and twisting in a single piece state. To compensate for this, a thin sheet metal is placed along the shape of the frame 11. A combination of narrowed down panels. This panel constitutes the front cover 12.

The frame 11 is composed of a frame portion and a ceiling surface 11a which are integrally formed.

As a fixing means for the frame 11 and the front cover 12, a thermocompression bonding method, that is, a bonding method for firmly bonding the frame 11 and the front cover 12 by applying pressure while applying heat with a thermo-pressure double-sided adhesive tape Has been adopted.

In FIGS. 1 and 3, 13 is a speaker hole for sounding, 14 is a reset switch button for stopping the sounding, 15 is a knob for a power switch, 16 is not only sounding but also flashing light. It is an LED lens for notifying. Each of these functional parts is attached to a predetermined portion of the frame 11.

Further, the ceiling surface 11 a of the frame 11 is provided with holes by adjusting the height of electric parts mounted on a printed board 20 described later. Further, the fitting portion 11b with the battery pack 60 described later is largely released.

In FIG. 3, 11 c and 11 d are recesses for locking the battery pack 60.

Reference numeral 11 e denotes a screw hole insert for fixing the rear cover 30, and a plurality of screw holes are embedded in the peripheral portion of the frame 11.

Reference numeral 17 is an insulator attached to the front cover 12.

On the printed board 20, circuit components of the receiver are mounted as shown in FIG.

In the figure, 21 is an electric component, 22 is a slide switch for a power switch, 23 is a reset switch, 24 is a speaker, and 25, 26 and 27 are terminals connected to the battery of the battery pack 60, respectively. is there.

The rear cover 30 is made of a thin metal plate, and is for housing the printed board 20 in the case 10 and sealing it by using a screw 40. An insulator 31 is attached to the inside of the rear cover 30 for the purpose of preventing a short circuit with the pattern of the printed board 20.

As the screw 40, as shown in FIG. 5, a screw having a screw locking agent 41 applied to its tip is used. This is to prevent the screws from coming loose due to the effects of vibration, bending and twisting applied to the receiver.

The cosmetic label 50 is for improving the external appearance, and is configured as a thin seal that covers the entire rear surface of the rear cover 30. The decorative label 50 is attached after the rear cover 30 is fixed to the frame 11 with the screws 40. However, during maintenance of the receiver, a peeling adhesive is used so that it can be peeled off relatively easily.

The battery pack 60 is removably incorporated in the fitting portion 11b formed by cutting out a part of the frame 11 from the direction of the arrow A shown in FIG.

6 and 7 are an external perspective view and an exploded perspective view of the battery pack 60.

In order to make the battery pack 60 as thin as possible in the thickness direction, the battery pack 60 is made of plastic with a terminal plate (in this case, serving as the (-) pole) 62 that holds the coin-shaped battery 61 and also serves as a contact portion. The battery 61 is designed to be held in the battery case. Locking ribs 63 and 64 for locking the recesses 11c and 11d of the frame 11 described above are provided on both side surfaces of the battery pack 60. It is designed to be held with strength. When the battery pack 60 is assembled in the case 10, the battery 61 is connected to the terminals 25, 26, 27 provided on the printed board described above. 61a and 61b are electrodes of the battery.

8 and 9 are a partial perspective view and a partially omitted rear view of the battery pack 60 housed in the case 10 as viewed from the rear side, and FIG. 10 is a bottom view of the battery pack.

As is clear from these figures, when the battery pack 60 is accommodated in the case 10, the engaging ribs 63, 64 are fitted into the recesses 11c, 11d on the frame 11 side so as to be removed. Is prevented. At the time of insertion, the locking ribs 63, 64 are pushed in while being bent by the elasticity of the plastic, and at the time of pulling out, the locking ribs 63, 64 are also pulled out from the fitted state with a certain amount of force.

The battery pack 60 is formed such that one end portion 65 thereof is flush with the case surface, and a convex portion 65 a for a knob is formed on the back surface of the one end portion 65 (FIG. 11).

As shown in FIG. 2, the convex portion 65 a is provided because the appearance of the battery pack 60 is almost the same as the surface of the case when the battery pack 60 is fitted in the case 10. This is so that the fingers are caught when the pack 60 is pulled out. The convex portion 65a has a small cylindrical shape in consideration of design.

Reference numerals 66 and 67 are charging holes for charging and using the battery pack, and the battery can be repeatedly used by using a predetermined charger. Generally, since the coin-type battery has a small capacity, the running cost of the receiver is high with the primary battery, so it is advisable to use the secondary battery as the charging system.

[0042]

[Effect of the invention]

 As described above, the thin electronic device structure of the present invention secures mechanical strength by the frame structure that accompanies the thinner device, and the rear cover attachment / detachment structure improves the maintainability. It is possible to facilitate the attachment and detachment of the battery.

In addition, in the receiver for individual calling to which the thin electronic device structure of the present invention is applied, a thin battery is used, and thin metal is provided on both sides of the plastic frame to reinforce, so that it is thin and chestless. It has the effect that it can be carried in a pocket etc. and has high mechanical strength.

Further, the printed board can be taken out by removing the screw of the rear cover, and the removable label is used for attaching the decorative label that covers the rear cover and the mounting screw, so that the maintainability is improved. The effect is rich.

Further, there is an effect that the battery pack can be easily attached and detached without using a tool.

[Brief description of drawings]

FIG. 1 is an external perspective view showing an embodiment of an individual call receiver to which a thin electronic device according to the present invention is applied.

FIG. 2 is an external perspective view of the same as seen from another angle.

FIG. 3 is an exploded perspective view.

FIG. 4 is a partial cross-sectional view in the thickness direction.

FIG. 5 is a perspective view of a screw.

FIG. 6 is an external perspective view of a battery pack.

FIG. 7 is an exploded perspective view of a battery pack.

FIG. 8 is a perspective view showing the vicinity of a battery pack fitting portion on the rear surface of the receiver.

FIG. 9 is a partially omitted rear view showing a locked state of the frame and the battery pack.

FIG. 10 is a bottom view of the battery pack.

FIG. 11 is a partial cross-sectional view of the surface of the battery pack.

FIG. 12 is an exploded perspective view showing an example of a conventional individual calling receiver.

[Explanation of symbols]

 10 ... Case 11 ... Frame 11a ... Ceiling surface 11c, 11d ... Recessed portion 11e ... Insert 12 ... Front cover 13 ... Speaker hole 14 ... Reset switch button 15 ... Power switch knob 16 ... LED lens 17 ... Insulator 20 ... Printed board 21 ... Electrical parts 22 ... Slide switch 23 ... Reset switch 24 ... Speaker 25 ... Terminal (TEST) 26 ... Terminal (+) 27 ... Terminal (-) 30 ... Rear cover 31 ... Insulator 40 ... Screw 41 ... Screw locking agent 50 ... Makeup label 60 ... Battery pack 61 ... Coin-shaped battery 61a ... Electrode (+) 61b ... Electrode (-) 62 ... Terminal plate (-pole) 63, 64 ... Locking rib 65 ... One end 65a ... Projection 66, 67 ... Charging hole

Claims (7)

[Utility model registration claims] 1. A frame part made of resin, a frame surface integrally formed so as to cover a first opening surface of the frame part, a first cover fixed to the frame surface, and the frame. A printed board on which a circuit component accommodated from a second opening surface of the portion is mounted, a cutout portion provided on the frame surface to prevent the circuit component, and fixed to the frame portion that covers the second opening surface. A thin electronic device structure including a second cover to be formed. 2. The thin electronic device structure according to claim 1, wherein the first cover is formed so as to cover the frame surface and the frame portion. 3. The thin electronic device structure according to claim 1, wherein the first cover is fixed by adhesion. 4. The thin electronic device structure according to claim 1, wherein the second cover is fixed by a screw. 5. The thin electronic device structure according to claim 1, further comprising a decorative label attached to the second cover with a removable adhesive. 6. A battery accommodating portion that is inserted from a notch portion provided in the frame portion and accommodated between the first cover and the second cover, the battery accommodating portion being provided in the notch portion. The one end portion to be engaged is formed to be substantially flush with the frame portion,
The thin electronic device structure according to claim 1, further comprising a battery pack having a convex portion formed on a surface of the one end portion. 7. The thin electronic device structure according to claim 6, wherein the protrusion is a plurality of cylinders.