JP2001291970A - Housing for electrical products, pedestal for electrical products, and video equipment equipped with these - Google Patents

Abstract

(57) [Problem] To provide a housing for an electric product which does not require a heat radiating hole, has good workability and is easy to recycle, and a pedestal for an electric product which has good workability and is easy to recycle. A housing of the liquid crystal display device includes a front housing and a back housing. This liquid crystal display device has a pedestal 900. The front housing 1 is made of aluminum, and the back housing 2 and the pedestal 900 are made of a mixed material of aluminum and glass. This mixed material is obtained by mixing waste aluminum such as empty cans and waste glass such as empty bottles at a weight ratio of about 1: 1 to a specific gravity of about 1.5.
It has become. In addition, among the components constituting the housing, not only the back housing 2 but also the front housing 1 may be made of this mixed material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a housing and a pedestal for electric appliances such as home appliances, and more particularly to a housing and a pedestal for video equipment. More specifically, the present invention relates to a housing and a pedestal of a liquid crystal display device.

[0002]

2. Description of the Related Art Generally, video equipment such as a monitor or a television receiver has a front housing and a back housing as its housing. As an example, FIG. 6 shows a sectional view of a main part of a conventional television receiver disclosed in Japanese Patent Application Laid-Open No. 10-42227.

Referring to FIG. 6, a housing 100 is formed by injection molding a synthetic resin such as PS (polystyrene) or ABS (acrylonitrile butadiene styrene).
It consists of two parts, namely a front housing 1 and a back housing 2. A CRT (cathode ray tube / CRT) 24 is attached to a predetermined position on the front housing 1 via bosses 28 provided at four locations and metal ears 29. The front housing 1 has an opening on the viewer side corresponding to the shape and size of the CRT 24. Further, the front housing 1 includes a speaker on the funnel surface side of the CRT 24, or a speaker sound emission hole at a predetermined position on the viewer side or on both side surfaces as necessary. On the other hand, the back case 2
It is fitted to the front housing 1 and fastened with screws or the like.

[0004] Further, the television receiver has a control circuit section for receiving a radio wave and projecting an image on a CRT screen while controlling the radio wave in a housing 100. FIG.
FIG. 2 is a conceptual diagram of a configuration of a control circuit unit disclosed in Japanese Patent Application Publication No. As shown in FIG. 7, the circuit configuration is roughly divided into five blocks. That is, the audio signal amplifier circuit, video signal amplifier circuit, color circuit, synchronous deflection circuit, and power supply circuit
One.

On the other hand, video equipment such as a monitor or a television receiver has a pedestal, and the pedestal is generally made of a synthetic resin.

[0006]

The housing 100 of a conventional television receiver (see FIG. 6) has been made of synthetic resin. Therefore, the heat conductivity of the housing 100 itself is poor, and a large number of heat radiation holes are required to release the heat generated inside the housing 100. Therefore, a large number of heat radiating holes (not shown) are provided in the housing 100 of the conventional television receiver. However, when the case is used for a long period of time, dust and moisture enter from the heat radiating holes, and the control circuit Dust was deposited on the part. The cotton dust absorbs moisture, which may cause a short circuit or failure of the control circuit.

[0007] On the other hand, for household electric appliances including television receivers, recycling of the constituent materials has become a social demand. However, in the case of a conventional synthetic resin housing or pedestal, there is a problem in promoting recycling. That is, when a synthetic resin housing or pedestal is burned, harmful substances are easily generated, and special treatment is required. Further, when re-molding by heating and melting, the quality of the product is reduced, for example, the strength is insufficient due to the influence of the additive.

To solve these problems, Japanese Patent Application Laid-Open No. 10-42
There is a technique disclosed in Japanese Patent Application Laid-Open No. 227-227 and Japanese Patent Application Laid-Open No. 10-191206. In these publications, a housing made of a magnesium alloy is proposed for a video equipment housing using a CRT for the purpose of eliminating heat radiation holes by promoting heat radiation and improving a recycling rate. The case made of a magnesium alloy has good thermal conductivity, and the elimination of the heat radiation hole can be achieved.

However, magnesium alloys are poor in workability and the recycling route is not established.
There was a problem that the processing cost was high and the recycling rate was low.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric appliance housing which does not require the above-described heat radiating holes, has good workability, and is easy to recycle.

In each of the above publications, only the housing is mentioned, but no pedestal is mentioned.

Accordingly, it is another object of the present invention to provide a pedestal for electrical products which has good workability and is easy to recycle.

[0013]

In order to achieve the above object, a housing for an electric appliance according to the present invention includes a member made of a mixed material of aluminum and glass. By adopting this configuration, it is possible to provide a housing for an electric product having excellent workability and heat dissipation. Further, since aluminum and glass are used as materials, waste aluminum and waste glass distributed as empty cans and empty bottles can be used as materials. Furthermore, when it is no longer needed, it can be redissolved and classified into aluminum and glass.

Preferably, in the above invention, a front case and a back case are provided, and the back case is made of the mixed material. By adopting this configuration, the front housing that is easily noticeable by the viewer can be made of a recyclable material in the back housing while using a material that is beautiful in appearance, thereby improving the recycling rate. Can be. Further, the back housing is excellent in workability and heat dissipation.

In the above invention, preferably, the mixed material has a specific gravity of about 1.5. Alternatively, the mixed material is obtained by mixing aluminum and glass at a weight ratio of about 1: 1.
It is possible to obtain a housing made of a mixed material having an optimum strength with an appropriate ratio of aluminum to glass.

[0016] In the above invention, preferably, the aluminum uses waste aluminum. In the above invention, preferably, the glass uses waste glass. By adopting these configurations,
A housing using recycled materials can be manufactured, and resources can be used effectively.

[0017] In one aspect of the video equipment according to the present invention, the above-described electronic product housing is provided. By applying such a housing to a video device that is an electronic product that is widely spread in society and has a relatively short life cycle, it is possible to effectively respond to social demands for improving the recycling rate.

[0018] In one aspect of the liquid crystal display device according to the present invention, the above-described electrical product housing is provided.
By applying the above-mentioned housing to a liquid crystal display device,
As compared with the case of a video device using a CRT, the entire device is compact and can be easily recycled, which is preferable.

The electric product pedestal according to the present invention includes a member made of a mixed material of aluminum and glass. By adopting this configuration, a pedestal having excellent workability can be obtained. Further, since aluminum and glass are used as materials, waste aluminum and waste glass distributed as empty cans and empty bottles can be used as materials. Furthermore, when it is no longer needed, it can be redissolved and classified into aluminum and glass.

Preferably, in the above invention, the mixed material has a specific gravity of about 1.5. Alternatively, the mixed material is a mixture of aluminum and glass at a weight ratio of about 1: 1. By adopting these configurations,
It is possible to obtain a pedestal made of a mixed material having an optimum ratio of aluminum and glass and an optimum strength.

[0021] In the above invention, preferably, the aluminum uses waste aluminum. In the above invention, preferably, the glass uses waste glass. By adopting these configurations,
A pedestal using recycled materials can be manufactured, and resources can be used effectively.

Further, in another aspect of the video equipment based on the present invention, the above-mentioned electric product pedestal is provided. By applying such a pedestal to a video device, which is an electrical product having a relatively short life cycle, it is possible to effectively respond to social demands for improving the recycling rate.

In another aspect of the liquid crystal display device according to the present invention, the above-mentioned electric product pedestal is provided. By applying the pedestal described above to a liquid crystal display device, C
As compared with the case of the video equipment using the RT, it is preferable because the whole apparatus becomes compact and the recycling can be performed more easily.

[0024]

(Embodiment 1) (Configuration) Embodiment 1 based on the present invention with reference to FIG.
Will be described. The video device shown in FIG. 1 is a television receiver, particularly a liquid crystal display device. This liquid crystal display device includes a front housing 1 and a back housing 2. The front housing 1 is made of aluminum and has a speaker unit 3, a liquid crystal display unit 4, and operation buttons 5.

FIG. 2 is a cross-sectional view of the liquid crystal display device. This hole 21
Are the front housing 1 and the holding unit 4 of the liquid crystal display unit 4
1 and a hole for fastening the back case 2 with screws 6. FIG. 3 shows an end view of the back casing 2 alone taken along the line III-III in FIG. Hole 21
Are provided at a total of four locations above and below the back housing 2.
However, the arrangement of the holes may be another arrangement. The fastening means between the front housing 1 and the back housing 2 may be a known means other than the screw 6.

The back casing 2 is made of a mixed material of aluminum and glass (hereinafter, simply referred to as "mixed material"). This is produced by casting materials using waste aluminum and waste glass. As the waste aluminum, those collected as empty cans or the like can be used, and as the waste glass, those collected as empty bottles or the like can be used. Preferably, the waste aluminum and the waste glass are mixed at a weight ratio of about 1: 1. By doing so, it is possible to obtain a housing having a strength not biased to either aluminum or glass. Since the specific gravity of the mixed material when mixed at such a ratio is about 1.5, aluminum and glass may be mixed on the basis that the specific gravity becomes about 1.5.

(Operation / Effect) In the liquid crystal display device shown in this embodiment, since the back casing 2 is made of a mixed material, the screws 6 are removed when the life of the liquid crystal display device comes to an end. By removing the liquid crystal display unit 4, the control circuit unit, the speaker unit 3 and the like, and re-melting the back housing 2, the back housing 2 can be classified into aluminum and glass and reused.

Since the recycling routes of aluminum and glass are relatively well established at present, the above-mentioned mixed materials are more realistically recycled than materials such as magnesium alloys proposed in the above-mentioned publication. Can contribute to improvement.

Since this mixed material has excellent thermal conductivity, heat can be sufficiently released without providing a heat radiating hole. Therefore, it is possible to prevent a failure due to intrusion of dust or the like from the heat radiation hole.

Since this mixed material can be formed by casting a material, it is excellent in workability as compared with a magnesium alloy formed by injection molding.

In this embodiment, an example has been shown in which only the back housing 2 is made of a mixed material and the front housing 1 is made of aluminum. However, both the front housing 1 and the back housing 2 may be made of a mixed material. Good. It is preferable that both the front housing 1 and the back housing 2 be made of a mixed material, since the ratio of the recycled material in one product as a whole increases.
However, as shown in the present embodiment, it is preferable that the front case 1 made of aluminum is made of aluminum, since the skin can be beautifully finished. Is preferred in that it is excellent in moldability.

(Embodiment 2) (Structure) Referring to FIG. 4, an embodiment 2 according to the present invention will be described.
Will be described. The video device shown in FIG. 4 is a liquid crystal display device as described in the first embodiment. This liquid crystal display device includes a front housing 1 and a back housing 2 similar to those in the first embodiment. On the other hand, a different point from the first embodiment is that a portion where front case 1 and back case 2 are combined is supported by pedestal 900 at a position slightly higher than the floor.

FIG. 5 is a sectional view of the liquid crystal display device. Except for the addition of pedestal 900, the structure is basically the same as that described with reference to FIG. 2 in the first embodiment, and therefore, detailed description of common portions will not be repeated. The pedestal 900 includes a pedestal ear 901. The pedestal ear 901 has a hole through which the screw 6 passes. The front case 1 and the back case 2 are fastened by screws 6 penetrating holes 21 provided in the back case 2. And the front case 1, the pedestal 900, and the back case 2 are fastened to each other.

The pedestal 900 is made of a mixed material similarly to the back casing 2 and the like in the first embodiment. The details and preferable conditions for the mixed material are the same as those described in the first embodiment.

(Operation / Effect) In the liquid crystal display device shown in this embodiment, since the base 900 is made of a mixed material, if the life of the liquid crystal display device has come to an end, the screws 6 are removed and the base is removed. By taking out only 900 and re-melting the pedestal 900, it can be classified into aluminum and glass and reused.

Since the recycling route of aluminum and glass is relatively well maintained even at present, the above-mentioned mixed material can actually contribute to the improvement of the recycling rate.

Since this mixed material can be formed by casting a material, it is excellent in workability.

In the liquid crystal display device according to the present embodiment, only the pedestal 900 is made of a mixed material, and the housing composed of the front housing 1 and the back housing 2 may be made of any material as before. Further, a mode in which Embodiments 1 and 2 are combined, that is, at least a part of the housing may be made of a mixed material, and pedestal 900 may be made of a mixed material. This is preferable from the viewpoint of promoting recycling, because the ratio of reusable parts increases.

In the present embodiment, an example of a liquid crystal display device which is a video device is shown as an example of an electric product having a housing or a pedestal according to the present invention, but other video devices may be used. It may be an electrical product.

The above-described embodiment disclosed herein is illustrative in all aspects and is not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and includes any modifications within the scope and meaning equivalent to the terms of the claims.

[0041]

According to the present invention, since at least a part of the housing of the electric appliance is made of a mixed material of aluminum and glass, the heat dissipation and the workability are excellent. Also,
Since at least a part of the pedestal of the electric product is made of a mixed material of aluminum and glass, the workability is excellent. Furthermore, since this mixed material can be produced by recycling waste aluminum and waste glass, this can also improve the recycling rate. When the life of the product has expired, the portion made of the mixed material is removed and redissolved, whereby the product is classified into aluminum and glass, and can be reused.

[Brief description of the drawings]

FIG. 1 is a perspective view of a liquid crystal display device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of the liquid crystal display device according to the first embodiment of the present invention.

FIG. 3 is an end view of the back casing alone according to the first embodiment of the present invention, taken along line III-III in FIG. 2;

FIG. 4 is a perspective view of a liquid crystal display device according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a liquid crystal display device according to a second embodiment of the present invention.

FIG. 6 is a cross-sectional view of a main part of a television receiver that is a video device based on the related art.

FIG. 7 is a conceptual diagram illustrating a configuration of a control circuit unit in a television receiver based on the conventional technology.

[Explanation of symbols]

1 front case, 2 back case, 3 speaker unit,
4 LCD display, 5 operation buttons, 6 screws,
24 CRT, 28 boss, 29 metal ear, 41 holding part, 100 housing, 900 pedestal, 901 pedestal ear.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2H089 HA40 JA11 QA16 TA07 4E360 AB03 AB08 AB12 AB20 BA02 BA08 BC05 EA13 EA18 ED02 FA08 GA24 GA53 GA60 GB03 GB04 5G435 AA12 AA17 BB12 EE02 GG44 HH00 LL04 LL08 LL15 LL15

Claims (15)

[Claims] 1. An electric appliance housing including a member made of a mixed material of aluminum and glass. 2. A vehicle comprising: a front housing; and a back housing.
The electronic product housing according to claim 1, wherein the back housing is made of the mixed material. 3. The housing for an electric appliance according to claim 1, wherein the mixed material has a specific gravity of about 1.5. 4. The mixed material according to claim 1, wherein aluminum and glass are mixed at a weight ratio of about 1: 1.
4. The electrical product casing according to any one of claims 1 to 3. 5. The electrical product casing according to claim 1, wherein said aluminum uses waste aluminum. 6. The electrical product casing according to claim 1, wherein said glass is made of waste glass. 7. An imaging device comprising the electrical product casing according to claim 1. 8. A liquid crystal display device comprising the electrical product casing according to claim 1. 9. An electric appliance pedestal including a member made of a mixed material of aluminum and glass. 10. The electrical product pedestal according to claim 9, wherein the mixed material has a specific gravity of about 1.5. 11. The electric product pedestal according to claim 9, wherein the mixed material is a mixture of aluminum and glass at a weight ratio of about 1: 1. 12. The electric product pedestal according to claim 9, wherein said aluminum uses waste aluminum. 13. The electric product pedestal according to claim 9, wherein said glass uses waste glass. 14. An image apparatus comprising the electric product pedestal according to claim 9. Description: 15. A liquid crystal display device comprising the electric product pedestal according to claim 9.