JP2000021267A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce thickness of a battery housing and to enlarge a switch pressing part by forming a button part arranged in an opening and a fulcrum part fixed and extended from the button part to one side and a switching extended from the button part to the opposite side of the fulcrum and interlocking with a button part pressing action in a switching formation member. SOLUTION: An electronic apparatus is provided with a battery housing for storing a battery and a switch formation member. A button part is arranged in an opening formed through the battery housing. A switch 13 is constructed of a button part 13a arranged in an opening 11a of an upper case 11, a fulcrum part 13b extended from the button part 13a to one side of the battery housing 20 so as to be fixed in a recess 11b, and an extension part 13c extended to the other side. The button part 13a is pressed down while using the fulcrum part 13b as a fulcrum, so that a clearance amount, that is, a stroke amount between a battery 14 and the button part 13a is reduced to a half of that of a structure in which a battery and a button are overlapped 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 device in which a switching member for operating a switch is provided in a battery storage portion of a device main body case.

[0002]

2. Description of the Related Art Heretofore, in electronic equipment such as a liquid crystal display device, contacts have been turned on and off by switches. FIG.
Is a plan view of the liquid crystal display device according to the first prior art, and FIG. 7 is a cross-sectional view of the liquid crystal display device according to the first prior art. In the first prior art, as shown in FIG. 6, an elongated rubber key 103 is provided in an opening formed below a transparent plate 102 of an upper case 101. in this case,
The button unit and the switch unit (contact connection unit) are integrally formed. Specifically, as shown in FIG. 7, the lower case 104 is provided below the upper case 101, the battery cover 105 is provided at the bottom of the lower case 104, and the battery cover 105 and the lower case 104 are formed. A battery 106 built in the battery housing 110, a rubber key 103 provided in an opening of the upper case 101, a printed board 107 provided immediately below the rubber key 103, a wiring 108 connected to the printed board 107, and a lower case 104 A connector 109 connected to the wiring 108 above, a printed circuit board 111 having the upper surface of the connector 109 fixed, a connector 112 fixed to the upper surface of the printed circuit board 111, and a printed circuit board 113 fixed to the upper surface of the connector 112; An LCD (Liquid Crystallized Display) panel 114 disposed below the transparent plate 102; The attachment was LCD
It consists of a holder 115. When the rubber key 103 is depressed, the contact pattern formed on the tip of the rubber key 103 is pressed against the contact pattern on the printed circuit board 107, and the contact on the printed circuit board 107 is connected. For example, a predetermined display is made on the LCD 129. .

FIG. 8 shows a plan structure of a liquid crystal display device according to a second prior art, and FIG. 9 shows a cross sectional structure of the liquid crystal display device according to the second prior art. In this case, the button unit and the switch unit are configured separately. In the second related art, a button 123 is provided along the outer periphery of a transparent plate 122 of an upper case 121. In detail, the upper case 121
, A battery cover 125 fitted in an opening of the lower case 124, a battery 126 built in a battery housing 130 formed by the battery cover 125 and the upper case 121, and a button 123. The tact switch 127 abutted on the lower surface, the printed circuit board 128 to which the tact switch 127 is fixed, and the L provided below the transparent plate 122
It comprises a CD 129 and an LCD holder 131 to which the LCD 129 is attached. Then, when the button 123 is depressed, the tact switch 127 is turned on, and for example, LC
A predetermined display is made on D129.

[0004]

However, in the first prior art, the printed circuit board 107 and the rubber key 103 are further arranged on the battery housing 110 so that the thickness of the entire apparatus is extremely low. Become larger. In the second prior art, a button 123,
Although the tact switch 127 and the printed circuit board 128 are stacked in the thickness direction of the apparatus, the button 123 and the tact switch 12
7, the thickness of the battery accommodating portion 130 increases, and accordingly, the thickness of the entire device also increases. Further, in the second conventional technique, the button 123 is disposed so as to avoid the battery storage unit 130,
The design is limited, and the pressing portion of the button 123 cannot be enlarged. Therefore, the liquid crystal display device using the switch according to the related art has a problem that it cannot be downsized.

[0005] It is an object of the present invention to provide an electronic apparatus in which the thickness of a battery accommodating portion is reduced and the size thereof is reduced irrespective of the arrangement of the switch, and the push portion of the switch is enlarged.

[0006]

According to the present invention, there is provided an electronic apparatus comprising a battery housing for accommodating a battery, and a switching member for operating a switch in an apparatus main body case, wherein the switching forming member includes the device. A button portion disposed in an opening formed through the battery storage portion of the main body case, and a fulcrum portion extending from the button portion to one side of the battery storage portion and fixed inside the battery storage portion. And an extension portion extending from the button portion to the other side opposite to the fulcrum portion of the battery storage portion and forming the switching in conjunction with the depression of the button portion. It is characterized by the following.

According to the present invention, by pressing the button portion of the switch forming member toward the inside of the battery storage portion, the button portion
With the fulcrum as a fulcrum, it is pushed down inside the battery compartment,
The extension is pushed down in conjunction with the button to form a switching. In particular, the fulcrum portion is extended from the button portion to one side of the battery storage portion, the extension portion is extended from the button portion to the other side of the battery storage portion, and the battery is stored in the battery storage portion, A button portion is provided in the opening of the battery storage portion, and the thickness of the battery storage portion does not increase due to the incorporation of the switch forming member. Therefore, the thickness of the battery housing is reduced, and a downsized electronic device can be obtained.

According to the present invention, in the electronic device according to the first aspect, the switch is operated in conjunction with the depression of the extension portion while being supported by the device main body case, and the button portion is returned to the original state. It is preferable to provide a contact spring to be used. According to this, the contact spring operates the switch in conjunction with the depression of the extension, and returns the extension to the original state when the pushing force is not applied to the extension.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment according to the present invention will be described below in detail with reference to FIGS. FIG.
Is an electronic device according to an embodiment to which the present invention is applied.
FIG. 2 shows a cross-sectional structure of the liquid crystal display device taken along line AA. As shown in FIG. 1, the liquid crystal display device 10 includes an upper case 11 as a device main body case of the present invention, a transparent plate 12 provided on the upper case 11, and a lower portion of the transparent plate 12 in the drawing. A pair of switches 13 and 13 and a battery 14 disposed directly below the switches 13 and 13.

More specifically, as shown in FIG.
A battery 14 facing the battery 3 and 13; a battery cover 16 covering a lower portion of the battery 14; a lower case 15 facing the upper case 11 as a device body case of the present invention;
A contact spring 17 serving as a contact portion abutting on the top end of the third case 3 and attached to the upper case 11, and a printed board 18 serving as a circuit board of the present invention opposed to the contact spring 17
An LCD 19 provided below the transparent plate 12;
9 is provided with an LCD holder 21 abutting on the side. In addition, the upper case 11 and the lower case 1 that house the battery 14
5. The battery cover 16 constitutes the battery storage unit 20.

Here, the upper case 11 is formed, for example, into a substantially rectangular shape by using a resin, and is formed through the opening 11a at the upper part of the battery housing part 20, and the concave part 11b is formed at the inner side surface of the battery housing part 20. are doing.

The switch 13 is connected to the opening 1 of the upper case 11.
1a, a substantially rectangular button 13a, a fulcrum 13b extending from the button 13a to one side of the battery housing 20 and fixed to the recess 11b of the upper case 11, and a battery from the button 13a. An extension 13c extends to the other side opposite to the fulcrum 13b of the storage section 20. An operation space in which the switch 13 can perform a switching operation is secured between the switch 13 and the battery 14. The button section 13a sets a large area and improves operability. And button part 1
3a is depressed with the fulcrum portion 13b as a fulcrum, so the gap amount between the battery 14 and the button portion 13a, that is, the stroke amount is compared with the gap amount required for a structure in which the battery and the button are simply overlapped. And the amount is reduced by half.
And the thickness of the overlap portion of the button portion 13a is further reduced.

The battery 14 is, for example, a columnar body having a circular cross section, and is disposed on the upper case 11 in the lateral direction in the drawing. The battery 14 is fixed to the case by another member (not shown) and does not hinder the operation of the switch 13. The lower case 15 has a substantially rectangular shape in plan view,
An inwardly extending wall portion 15a for regulating the stroke amount of the extending portion 13c of the switch 13 is provided toward the inside. Battery cover 1
6 covers and holds the battery 14 housed between the upper case 11 and the lower case 15.

As shown in FIG. 4, the contact spring 17 is attached to the upper case 11 by fixing the fixing portions 22 and 22 by thermocompression. Also, both end portions 17a, 17a are concave in cross section.
Is formed in a U-shape. Then, as the extension 13c of the switch 13 is pushed down, the U-shaped tip 17a of the contact spring 17 is pressed against the printed circuit board 18 to release the pushing force, and then the switch 13 is returned to the original state. As described above, by using the contact spring method, the size of the switch can be reduced as compared with the existing switch. For example, a tact switch requires a width of 3.5 mm or more, but it is 2 mm in the present system. The contact spring 17 was fixed by a thermocompression bonding method.
Screw fixing or adhesive fixing may be used.

A printed circuit board 18 has a strip-shaped contact pattern formed on the board, and a U-shaped tip portion 17 of a contact spring 17.
A contact operation is performed by bringing a into pressure contact.

As described above, the battery 1 is stored in the battery housing 20.
4 and the switch 1 is placed in the opening 11a of the battery housing 20.
3 is disposed, and the extension 13c of the switch 13, the contact spring 17, and the printed circuit board 18 are disposed beside the battery housing 20, so that the thickness of the battery housing 20 is It does not grow due to integration. In addition, since the above-described parts are manufactured by processing methods such as resin molding and metal pressing which are inexpensive, products can be provided at low cost.

Next, a method of using the liquid crystal display device will be described with reference to FIGS. FIG. 3 shows a cross-sectional structure along the line AA when the liquid crystal display device is operated, and FIG. 4 shows a cross-sectional structure along the line BB when the contact spring is operated. The user operates the LCD 1 of the liquid crystal display device 10.
9 is displayed on the button 13a of one switch 13
You just have to press. At this time, the button 13a of the switch 13
Is pushed down toward the battery 14 with the fulcrum 13b as a fulcrum. Here, the fulcrum 13 of the switch 13
Since it is a one-sided fulcrum method by b, the amount of the gap between the battery 14 and the button portion 13a, that is, the amount of stroke is half of the conventional amount. The extension 13c is pushed down with the button 13a, and the contact spring 17 is pushed down toward the printed circuit board 18.
U-shaped tip 17a of contact spring 17 and printed circuit board 18
The contact is made with the upper contact pattern, and the contact is connected.

Further, when the button portion 13a of the switch 13 is pressed down, the extension portion 13c is
At 5a, the stroke amount is regulated, and switch destruction due to pushing off of the button 13a is prevented. Then, when the user stops pressing down the button 13a of the switch 13, the contact spring 17 is lifted by the return force, and the extension 13c and the button 13a are lifted by the contact spring 17 to return to the original state. Return.

As described above, according to the present embodiment, the battery 14 is arranged in the battery housing 20, and the button 13 a of the switch 13 is provided in the opening 11 a of the battery housing 20. Extending portion 13 of switch 13 to the side of storage portion 20
c, the contact spring 17 and the printed circuit board 18 are provided, and the thickness of the battery housing 20 does not increase due to the incorporation of the switch 13, so that the battery housing 20 becomes thinner and the liquid crystal display device 10 is downsized. The fulcrum 1 of the switch 13
3b, the gap between the battery 14 and the button portion 13a, that is, the stroke amount, may be half the conventional amount, so that the thickness of the overlap portion between the battery 14 and the button portion 13a is further reduced. Further, since the area of the button portion 13a is increased without increasing the thickness of the product 10, the liquid crystal display device 10 having good operability can be obtained. The present embodiment is not limited to the liquid crystal display device, and may be applied to any electronic device provided with a battery storage unit that stores a battery.

FIG. 5 shows a planar structure of a modification according to the present embodiment. In this modified example, the horizontal length of the button portions 23a, 23a of the switches 23, 23
3 longer than the button portions 13a, 13a, and the button portions 23a, 23
The feature is that the area of a is wider than the button portions 13a, 13a. According to this, the button portion 2 can be formed without increasing the thickness of the product.
Since the areas of 3a and 23a are further increased, a liquid crystal display device with better operability can be obtained. In the above embodiment, the switching is realized by the contact spring 17, but the present invention is not limited to this, and other switch devices (a diaphragm switch using rubber, film, etc.,
A sheet switch, flat switch, membrane switch, tact switch, etc.) may be used.

[0021]

As described above, according to the present invention, the fulcrum portion extends from the button portion to one side of the battery storage portion, and the extension portion extends from the button portion to the other side of the battery storage portion. The battery compartment in the battery compartment, and a button in the opening of the battery compartment.The thickness of the battery compartment does not increase due to the incorporation of the switch forming member. Thus, a downsized electronic device can be obtained.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a planar structure of a liquid crystal display device according to an embodiment to which the present invention is applied.

FIG. 2 is an explanatory diagram showing a cross-sectional structure along a line AA of the liquid crystal display device according to FIG.

FIG. 3 is an explanatory diagram showing a cross-sectional structure along line AA when the liquid crystal display device according to FIG. 1 is operated.

FIG. 4 is a diagram illustrating a state in which a contact spring according to FIG. 1 is operated;
It is explanatory drawing which shows the cross-section along the B line.

FIG. 5 is an explanatory diagram showing a planar structure of a modified example according to FIG. 1;

FIG. 6 is an explanatory diagram showing a planar structure of a liquid crystal display device according to a first conventional technique.

FIG. 7 is an explanatory diagram showing a cross-sectional structure along a line CC of the liquid crystal display device according to FIG. 6;

FIG. 8 is an explanatory view showing a planar structure of a liquid crystal display device according to a second conventional technique.

FIG. 9 is an explanatory diagram showing a cross-sectional structure along a line DD of the liquid crystal display device according to FIG. 8;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Upper case 12 Transparent plate 13 Switch 14 Battery 15 Lower case 16 Battery cover 17 Contact spring 18 Printed circuit board 19 LCD 21 LCD holder 22 Fixed part

Claims (2)

[Claims] 1. An electronic device comprising: a battery housing portion for housing a battery in a device body case; and a switching member for operating a switch, wherein the switching member is provided in the battery housing portion of the device body case. A button portion disposed in an opening formed therethrough; a fulcrum portion extending from the button portion to one side of the battery storage portion and fixed inside the battery storage portion; and a battery from the button portion. An electronic device, comprising: an extension portion that extends to another side of the storage portion opposite to the fulcrum portion and that forms the switching in conjunction with the depression of the button portion. 2. A contact spring that is supported by the device main body case and operates a switch in conjunction with the depression of the extension portion, while returning the button portion to its original state. Item 6. The electronic device according to Item 1.