JPH10191206A - Casting and video unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To radiate heat from a constitution surface without multiple heat radiation holes and to reduce the infiltration of dust and water by injection molding a metallic member having not more than a specified ratio value, setting it to be a casing, providing an infrared ray absorption coating on an inner surface and directly fitting it on the outer peripheral face of a display without using a front board. SOLUTION: Mg alloy whose specific gravity is about 1.8 is injection molded and a bottomed container-like cabinet 41 is molded. It is directly fitted through a fitting cramp iron provided for the outer peripheral face of CRT 40. When the specific gravity of the alloy member is not more than 2 and it is injection moldable metal, Mg alloy is not required so much. The cabinet 41 partitions a space storing the funnel part and the neck part of CRT 40 and a control circuit part 44 and a space for speaker device storage by a baseplate 63. The infrared ray (radiation) absorption coating is provided for the inner surface of the cabinet 41, infrared rays from the heat generation body of the inner storage are efficiently absorbed and heat is radiated from the outer face.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video device such as a television receiver or a video monitor, and more particularly, to a housing (cabinet) formed by injection molding a magnesium alloy (Mg alloy) or a synthetic resin. The present invention relates to a video device provided with the same.

[0002]

2. Description of the Related Art In general, a video apparatus such as a monitor or a television receiver has, for example, a sound emitting hole for a speaker, a front panel on which a display such as a CRT, a liquid crystal, a plasma and the like and a speaker device are mounted, and a control panel. A circuit unit, and a cabinet (housing) attached to the front panel and covering the display, the control circuit unit, and the speaker device.

Here, a cabinet (housing) structure of a conventional television receiver is shown in a sectional view of a main part in FIG. FIG.
, A cabinet (casing) 830 includes front and rear parts 831 and a rear cabinet (back cover) 832 formed by injection molding a synthetic resin such as PS (polystyrene) or ABS (acrylonitrile butadiene styrene). Consists of Front plate 831 is CRT
A (cathode ray tube / CRT) 833 is fixedly attached via bosses 834 provided at four places and metal ears 838. An opening is provided on the viewer side corresponding to the CRT 833. Further, if necessary, the front plate 831
The speaker device 17 is attached to the funnel surface side of T833, or the speaker sound emission hole 16 is provided at a predetermined position on the viewer side or on both side surfaces. (See FIG. 10) The rear cabinet 832 is fitted to the front plate 831 and integrated by means such as screw fastening. Further, a heat radiating hole for releasing heat from the control circuit unit and the CRT is provided on a main surface, for example, a top surface, a rear surface, a side surface, a bottom surface, and the like. (Not shown) When the size of the CRT is 28 inches to 32 inches, the thickness T of the main surface constituting the front plate and the back cover is set to about 2.3 mm to 3 mm, respectively.

[0004] As a matter of course, the television receiver has a control circuit unit for receiving and controlling radio waves and displaying an image on a CRT screen in a cabinet. FIG. 9 shows a conceptual diagram of the configuration of the control circuit unit. In this case, the circuit configuration is roughly divided into five blocks (an audio signal amplifier circuit, a video signal amplifier circuit, a color circuit, a synchronous deflection circuit, and a power supply circuit).

As a cooling means for electronic devices such as a television receiver using a CRT, a plasma display (see FIG. 11), and a portable information terminal (for example, a notebook personal computer having a liquid crystal display, see FIG. 12). For example,
Japanese Patent Application Laid-Open No. Hei 7-142886 proposes a configuration in which a heat generating member and a metal housing wall as a heat radiating portion are thermally connected by a heat transport device having a flexible structure.

Further, Japanese Patent Application Laid-Open No. 7-212684 proposes a plasma display device in which a control circuit board and a housing are connected by a metal having good heat conductivity.

[0007]

However, the above-mentioned conventional cabinet for a television receiver has the following problems. 1) The cabinet for storing the CRT and others is divided into a front panel and a rear cabinet, so that the number of assembling steps, material costs, and other costs are increased. Also, the number of disassembly steps for recycling increases. 2) The configuration in which the ears (tabs) are spot-welded to the metal band wound around the outer peripheral surface of the CRT and the CRT is mounted on the front plate has a limit to compactness.
It is hard to be a novel design. 3) A cabinet in which a resin member is injection-molded has poor heat conduction and requires many heat radiating holes. Also, when a magnesium alloy is injection molded, the reflectance of radiation is high when the surface is whitish and glossy. That is, as compared with the case where the surface is black, the absorption of infrared rays is poor and the heat radiation effect is small. 4) Although a heat radiating hole is formed in the rear cabinet, dust and moisture enter from the heat radiating hole due to long-term use, and dust is deposited on the control circuit portion. The cotton dust absorbs moisture, which may cause a short circuit or failure of the control circuit. 5) As a means for injection molding a general cabinet with a metal member, casting using pig iron, die casting (symbol ADC, ZDC) using AL or Zn, lost wax, or the like is used. However, when a large television receiver housing is formed by these methods, the thickness of the main surface of the housing is as large as about 2 mm to 5 mm at minimum. The specific gravity of pig iron and ZDC is about 6 to 8, and the specific gravity of ADC is about 2.6.
Greater than about. As a result, the weight of the cabinet was increased, and it was not practical in terms of transportation, installation, and the like as compared with the resin cabinet and was not realistic. When the thickness of ADC and ZDC is as thin as about 1 mm to about 2 mm,
The external dimensions are as small as about several tens of mm to about 100 mm square, and have been applied only to small parts. Therefore, 1
No idea has been proposed for constructing a cabinet of a 4-inch or larger stationary television receiver by metal injection molding.

[0008] The method of conducting heat between the heat generating member and the housing wall using a heat transfer device having a flexible structure or a metal requires a complicated structure, requires additional members and a mounting space, and is an obstacle to miniaturization of the apparatus. Becomes

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention does not use a front panel and uses a rear cabinet.
It was configured to be directly attached to the outer peripheral surface of a display such as an RT. When the rear cabinet is formed of a resin member, the infrared absorbent is disposed in a predetermined manner in the resin member of the rear cabinet or on the inner surface.

The rear cabinet is injection-molded using a Mg alloy having a specific gravity of about 2 or less, and the thickness of the main surface is reduced to about 0.8 mm to 2.2 mm. Further, M
The structure was such that an infrared absorbing coating was provided on the surface of the g alloy molding cabinet. That is, a structure in which at least the inner surface of the Mg alloy cabinet is provided with a paint containing an infrared absorbing agent in a predetermined manner, or a structure in which at least the inner surface of the Mg alloy cabinet is blackened to have an infrared absorbing function coating. And

When each cabinet (housing) is divided into two parts, a front plate and a rear cabinet (back cover), each cabinet (housing) is manufactured by injection molding a Mg alloy, and an infrared ray is applied to the inner surface. The structure in which the absorbent is provided in a predetermined manner or the structure in which at least the inner surface is blackened is adopted. Specifically, 1) A casing of a video device characterized in that a metal member having a specific gravity of 2 or less is injection-molded, and a paint containing an infrared absorbent is applied to the surface. 2) A casing for a video device, wherein a metal member having a specific gravity of 2 or less is injection-molded, and at least the inner surface is blackened. 3) A housing for a video device, characterized in that a synthetic resin contains an infrared absorber and is molded into a predetermined shape. 4) A casing of a video device characterized in that a synthetic resin is molded into a predetermined shape, and a paint containing an infrared absorbent is applied to the inner surface.

According to the above configuration, the metal cabinet in which the Mg alloy is injection-molded can be safely reused without generating harmful substances. Also, the recycling rate is improved. As a result, it helps the environment. Further, heat generated in the control circuit section and the like is efficiently absorbed by the cabinet. Further, the metal cabinet easily transfers heat to the metal cabinet and radiates heat from the surface without providing many heat radiation holes. Therefore, intrusion of dust and moisture is reduced. As a result, a short circuit or failure of the control circuit can be prevented, and a highly reliable video device (such as a television receiver or a monitor) can be provided.

When an infrared absorbing agent is mixed into the resin member when molding the resin cabinet, various members may be used as the synthetic resin. For example, phenolic resin, urea resin, melamine resin, unsaturated polyester resin, alkyd resin, epoxy resin, thermosetting resin such as silicon resin, or polyethylene, polystyrene,
Thermoplastic resins such as polypropylene, vinyl chloride resin, vinylidene chloride resin, methacrylic resin, polyamide resin, polycarbonate, fluorine resin, polyethylene terephthalate, norbornene resin, and other resins may be used.

For synthetic resin arbitrarily selected from the resin members, as an infrared absorber, for example, black aniline black (organic pigment), polymethylene dye, trisazo dye amine salt, cyanine dye or its metal complex, anthraquinone, aminium System, phthalocyanine system, ytterbium sulfate, ytterbium acetate, YbPO ↓ 4 (particle size 0.5 micrometer or less), P ↓ 2O ↓ 5, N
-Tetraphenyl benzoquinone diimonium salt,
0.01 W% of at least one of iron oxide, carbon black, naphthoquinone oximate ferrous iron, silicon oxide, magnesium silicate, or a combination thereof,
What is necessary is just to mix about 20 W%.

In the case where an infrared absorbing agent is applied to the inner surface of a resin cabinet or a Mg alloy molded cabinet, one of the above infrared absorbing agents and a binder resin are combined with a paint to form a coating material having a thickness of 0.1 μm. It may be applied to a thickness of about 20 to 20 microns. The application means may be arbitrary such as screen printing, electrostatic printing, tampo printing, spraying and the like.

Further, as a treatment means for blackening the surface of the Mg alloy molding cabinet, for example, a chromate treatment or an acidic aqueous solution treatment may be used.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is characterized in that a metal member having a specific gravity of 2 or less is injection-molded and an infrared absorbing film is provided on the surface thereof. The recycling rate is improved without the generation of harmful substances. Further, heat generated in the control circuit section and the like is efficiently absorbed and radiated by the cabinet.

According to a sixth aspect of the present invention, there is provided a display including a display and a housing accommodating a control circuit portion, wherein the housing is formed by injection molding a metal member having a specific gravity of 2 or less. The video equipment is characterized by having an infrared absorbing coating on the inner surface of it, which improves the recycling rate without generating harmful substances and efficiently absorbs and radiates heat generated in the control circuit and other parts to the cabinet. Is done.

The invention according to claim 11 comprises a front plate on which a display is mounted, and a housing attached to the front plate so as to accommodate a control circuit section and a speaker device. Is a video device characterized by injection-molding a metal member with a specific gravity of 2 or less, and furthermore, an infrared absorbing coating on the inner surface of each. Rate has improved,
Heat generated in the control circuit section and the like is efficiently absorbed and radiated by the cabinet.

According to a twelfth aspect of the present invention, there is provided a display, comprising a housing mounted on an outer peripheral surface of the display so as to house a control circuit unit and a speaker device, wherein the housing has a specific gravity of 2 or less. It is a video device characterized by injection molding of the member and further having an infrared absorbing coating on the inner surface, which improves the recycling rate without generating harmful substances, The generated heat is efficiently absorbed and dissipated in the cabinet.

According to a thirteenth aspect of the present invention, a display, a control circuit unit, a housing attached to the display unit, and a speaker device disposed below the display are provided. A speaker box is formed by a skirt portion and a bottom cover plate opposed to the bottom plate, and the housing is formed by injection-molding a metal member having a specific gravity of 2 or less. The recycling rate is improved without generating harmful substances, and the heat generated in the control circuit and the like is efficiently absorbed and radiated to the cabinet.

According to a fifteenth aspect of the present invention, there is provided a housing for a video device, wherein a metal member having a specific gravity of 2 or less is injection-molded, and at least the inner surface is blackened. The recycling rate is improved without generating harmful substances, and the heat generated in the control circuit and the like is efficiently absorbed and radiated to the cabinet.

According to a nineteenth aspect of the present invention, there is provided a housing for an image apparatus characterized in that a synthetic resin contains an infrared absorbing agent and is molded into a predetermined shape. It is efficiently absorbed and dissipated in the cabinet.

According to a twentieth aspect of the present invention, there is provided a video equipment housing characterized in that a synthetic resin is molded into a predetermined shape and an infrared absorbing agent is provided on the inner surface. The heat generated in the parts etc. is efficiently absorbed by the cabinet,
Heat is dissipated.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. For convenience, the video equipment is shown by an example of a television receiver.

(Embodiment 1) FIG. 1 is a perspective view of a television receiver according to a first embodiment of the present invention, FIG. 2 is a partial sectional view of FIG. 1 cut vertically, and FIG. FIG. 4 is a bottom sectional view of FIG. 1, and FIG. 5 is a perspective view of a CRT constituting the television receiver of FIG.

The television receiver 1 shown in FIGS. 1 to 5
00 is the CRT 40 and the outer peripheral surface (end surface) of the CRT 40
Cabinet 41 with screws fastened to cabinet 41
A control circuit unit 44 housed in the CRT 40, a speaker device 60 disposed below the CRT 40,
And a bottom cover plate 43 disposed opposite to the bottom plate 63. A neck substrate 47 is attached to the neck of the CRT 40, and is connected to the control circuit 44 by a cable 45. Further, various switches 48 attached to the circuit board 46 have ends protruding from openings on the front surface of the skirt portion 64 of the cabinet 41. The circuit board 46 is a cable 45
Is connected to the control circuit section 44 via the.

As shown in FIG. 5, the CRT 40 has a metal band 50 wound around the outer peripheral surface (the end surface of the display screen) in a predetermined manner, and mounting brackets 51 are provided at four places by means such as spot welding. Become. A screw hole (tap) 52 is cut in the mounting bracket 51 having a substantially convex shape.

The cabinet 41 has a substantially bottomed container shape, and is provided with through holes corresponding to the screw holes 52 provided on the outer peripheral surface of the CRT 40. In addition, cabinet 41
Is formed by injection molding a magnesium (Mg) alloy. Mg
The alloy has a specific gravity of about 1.8 and is larger than the resin member, but ADC,
Smaller than ZDC. In addition, if the metal has a specific gravity of 2 or less and can be injection-molded, it is not limited to the Mg alloy. As shown in FIGS. 2 and 4, the cabinet 41 divides a space for accommodating the funnel portion, the neck portion, and the control circuit portion 44 of the CRT 40 and a space for accommodating the speaker device 60 by a bottom plate 63 ( Partition). The bottom plate 63 has approximately Y
A letter-shaped rib 62 is provided upright. The rib 62 divides a speaker box to be described later into a right-hand side and a left-hand side. The bottom plate 63 is further provided with a plurality of wiring through holes for the cable 45. Further, a pair of hook-shaped holding portions 61 are provided at two locations on the inside of the front side of the skirt portion 64 of the cabinet 41 so as to face each other. The end of the speaker device 60 is inserted into the hook-shaped holding portion 61, and the bottom plate 63 is inserted.
The speaker device is easily fixed by screwing the bottom cover plate using the boss 42 standing upright. Further, according to the above configuration, the cabinet 41 has a space surrounded by the bottom plate 63, the skirt portion 64, the bottom cover plate 43, and the ribs 62.
A right speaker box and a left speaker box are formed at the rear of the speaker device 60. In addition, CRT40
The cabinet 41 is attached using the screw holes (tap) 52 and the through holes. FIG.

Further, the cabinet 41 has at least an inner surface (CRT 40, control circuit 44,
The surface on the side where the speaker device 60 is accommodated) is provided with an infrared absorbing function coating. (Not shown) The following three means were used to form the infrared absorbing function coating on the surface of the cabinet. (1) Method of blackening by chromate treatment As a treatment means for blackening the surface of the Mg alloy molding cabinet, for example, prior to the chromate treatment, the solvent is degreased and treated with a pyrophosphate aqueous solution (concentration: 10 to 50 g /
l) and treatment with an aqueous alkali hydroxide solution (concentration 10 to 10)
100 g / l) at room temperature to 70 ° C.
5 minutes, the treatment with the chromate treatment solution was performed at room temperature to 35 degrees Celsius for 0.5 to 5 minutes, and the time of standing in the air was 20 minutes.
Seconds to 2 minutes. (2) Method of blackening treatment by acidic aqueous solution treatment After the surface of the Mg alloy molding cabinet is cleaned by pickling and washing with water, Zn ion concentration: 1 to 30 g / l, pH>
12. Temperature; immersed in an alkaline aqueous solution containing Zn ions at 10 to 50 degrees Celsius for 15 seconds to 5 minutes to chemically plate Zn on the surface. Next, after washing with water, Sn, Cu, P
b, Ag, especially metal ions such as Cu and Ag
Sulfate, nitrate, chloride, etc. containing 0 g / l
The surface is treated with an acidic aqueous solution at ６０60 ° C. for 5 seconds to 5 minutes to form a black film. (3) Method of Applying Paint Containing Infrared Absorber A phthalocyanine-based infrared absorber is combined with a binder resin such as an acrylic resin, an epoxy resin, or a silicon resin on the inner surface of the Mg alloy molded cabinet to form a resin composition ( (Coating) to a thickness of 0.1 to 20 microns.

As described above, the television receiver according to the first embodiment can omit the conventional front panel and can be configured compact. Also, assembly and disassembly are facilitated. Furthermore, it can correspond to a novel design. Further, the speaker device can be attached with one touch. In addition, the cabinet
When it is made of a metal member such as an alloy, it is not necessary to dispose a large number of heat radiating ports (or heat radiating holes) on the top surface, both side surfaces, the lower surface, the rear surface, and the like as in a conventional resin cabinet. Reason,
This is because heat generated from a CRT, a control circuit unit, or the like is transmitted to the cabinet by conduction, radiation, convection, or the like, and heat can be efficiently radiated from the surface of the cabinet. That is, the cabinet plays the role of a heat sink. In particular, since the infrared absorbing function coating is disposed on the inner surface of the cabinet, it can efficiently absorb infrared rays (radiation rays) from the heating element housed therein and radiate heat from the outer surface.

(Embodiment 2) FIG. 6 is a sectional view showing the concept of a two-part cabinet (housing) constituting a television receiver according to a second embodiment of the present invention. That is, the bottomed container-shaped rear cabinet (back cover) and the front plate are separated from each other, and are formed by injection molding of a Mg alloy. In this embodiment, an infrared absorbing film was provided on at least the inner surface of the cabinet surface. (Not shown) Example 1 of Means for Arranging an Infrared Absorbing Function Coating
Similarly to (1), a method of blackening by chromate treatment, (2) a method of blackening by treatment with an acidic aqueous solution, and (3) a method of applying a paint containing an infrared absorbing agent were used.

Next, an example of the configuration dimensions of both is shown in CRT size 1
One example of each of 4 inches and 32 inches is shown. In both cases, the thickness T of the main surface was in the range of about 1 mm to about 2 mm. T is 0.8m in consideration of manufacturing dimensional variation
m to 2.2 mm.

Also in this embodiment, the specific gravity of the Mg alloy is about 1.8, which is usually set within a range of about 1.8 ± 10%. The thickness T of the main surface is about 1 mm to about 2 mm
It is thin in comparison with resin molded products. This is because the Mg alloy has higher rigidity and prevents the weight of the product from becoming too large compared to the resin, and in some cases, makes the product lighter than the resin. Further, as listed in the dimension table of FIG. 6, the facing distance (inner width W or inner height H) between the main surfaces at the opening end on the fastening side is set to about 320 mm or more, and the inner depth D is set. It was set to about 150 mm or more.

If necessary, ribs, bosses and the like for adding rigidity to the top surface, bottom surface, side surface, rear surface, etc. of the metal cabinet may be arranged in any shape at any position. (Not shown) Further, the speaker device may be arranged below the CRT, or may be housed at an arbitrary position such as on both sides of the CRT or at the rear.

According to the second embodiment, the control circuit components and C
The heat generated from the RT or the like is conducted to the lower portion (bottom portion) of the metal cabinet, and is also radiated from other surfaces through convection and radiation. Therefore, the metal cabinet can reduce the heat radiating holes that are formed in the conventional resin cabinet. This reduces the ingress of dust, water or other foreign matter into the television receiver. As a result, it is possible to reduce the possibility that the control circuit section is short-circuited or break down, thereby providing a highly reliable television receiver. In addition, since it is injection molded, the degree of freedom in design is improved. Of course, the collection rate and recycling of the cabinet are improved. Further, a shielding effect against electromagnetic wave interference and the like can be obtained. Further, since the infrared absorbent is disposed on the inner surface of the cabinet, infrared rays (radiation rays) from the heating element housed inside can be efficiently absorbed and heat can be radiated from the outer surface.

(Embodiment 3) FIG. 7 is a cross-sectional view of a principal part showing the concept of a two-part resin cabinet (housing) constituting a television receiver according to a third embodiment of the present invention. The configuration is almost the same as that described in the section of the prior art, and the detailed description is omitted.

In FIG. 7, a cabinet (housing) 30
Is composed of two parts before and after injection molding of a synthetic resin such as PS (polystyrene) or ABS (acrylonitrile butadiene styrene), that is, a front plate 31 and a rear cabinet (back cover) 32. An infrared absorbing agent (not shown) is provided on the front surface of the front plate 31 and the rear cabinet (back cover) 32, on the side where the CRT, the control circuit unit, the speaker device and the like are stored, that is, on the inner surface.
Was arranged. The following two means were used for disposing the infrared absorbent. (1) Method of molding a resin member mixed with an infrared absorbent A polystyrene resin is kneaded with a phthalocyanine-based infrared absorbent of several W% to 10 W% to constitute a molding cabinet. Alternatively, a resin composition is prepared by adding 7 to 100 parts by weight of an infrared absorber to 100 parts by weight of a thermoplastic norbornene resin.
A configuration to obtain a cabinet by molding this. Alternatively, 0.1 W% to 5 W% of black dye is mixed into vinyl chloride resin,
Configuration to obtain cabinet by molding this. (2) Method of Applying Paint Containing Infrared Absorber A resin composition (paint) in which a phthalocyanine-based infrared absorber is combined with a binder resin such as an acrylic resin, an epoxy resin, or a silicone resin on the inner surface of a resin molding cabinet. To a thickness of 0.1 to 20 μm.

In the above description of the three embodiments, an example of a television receiver has been described. However, it goes without saying that the video equipment is not limited to this. Any device including a video display, such as a mobile phone and a barcode reader, is optional. Also, the image display may be any other than CRT, such as plasma and liquid crystal. Further, the type of the electronic device may be any device such as an audio device, a satellite broadcast device (for example, a down converter, etc.) other than the video device. Further, the molding means of the cabinet (housing) may be arbitrarily selected, such as injection molding, blow molding, compression molding, or the like of a resin member or an Mg alloy, or optionally, pressing, pressing, or the like of a plate member. is there.

In the case of the plasma display shown in FIG. 11, when the front panel 6 and the rear panel 7 are provided with an infrared absorbing agent (infrared absorbing function) on the inner surface, the heat radiation efficiency is improved. Also, in the case of the portable information terminal shown in FIG. 12, an infrared absorbing agent (infrared absorbing function) is provided on the inner surface of the cabinet holding the liquid crystal display and the inner surface of the cabinet storing the control circuit board. If so, the heat radiation efficiency is improved.

[0041]

As described above, the video apparatus according to the present invention can be made compact by omitting the conventional front panel by the above configuration. Also, assembly and disassembly are facilitated. Furthermore, it can correspond to a novel design. Further, the speaker device can be attached with one touch. In addition, the cabinet
In the case of injection molding with g alloy, it is not necessary to arrange a large number of heat radiating holes on the top surface, both side surfaces, the lower surface, the rear surface, and the like as in the conventional resin cabinet. Metal cabinets can be safely reused without the generation of harmful substances. Also, the recycling rate is improved. As a result, it helps the environment. In addition, heat generated in the control circuit section and the like is easily transmitted to each component surface of the cabinet, and radiates heat from each component surface without providing a large number of heat radiation holes. Therefore, intrusion of dust and moisture is reduced. As a result, short-circuits and failures in the control circuit can be reduced, and a highly reliable video device (such as a television receiver or a monitor) can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a television receiver according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view of FIG.

FIG. 3 is a partial cross-sectional view of FIG. 1 cut horizontally.

FIG. 4 is a bottom view of FIG. 1;

FIG. 5 is a perspective view of a CRT constituting the television receiver of FIG. 1;

FIG. 6 is a sectional view of an essential part of a second embodiment of the present invention in which a two-part cabinet is separated.

FIG. 7 is a sectional view of a main part of a television receiver according to a third embodiment of the present invention.

FIG. 8 is a sectional view of a main part of a conventional television receiver.

FIG. 9 is a conceptual diagram illustrating a configuration of a control circuit unit included in a conventional television receiver.

FIG. 10 is a perspective view of the concept of a front plate constituting a conventional television receiver.

FIG. 11 is a sectional view of the concept of a conventional plasma display.

FIG. 12 is a perspective view of the concept of a conventional portable information terminal.

[Explanation of symbols]

 Reference Signs List 40 CRT (Cathode Ray Tube) 41 Cabinet 42 Boss 43 Bottom Cover 44 Control Circuit 45 Cable 46 Circuit Board 47 Neck Board 48 Switch 49 Set Leg 50 Metal Band 51 Mounting Bracket 52 Screw Hole 53 Funnel Surface 60 Speaker Device 61 Hook Type Holding part 62 Y-shaped rib 63 Bottom plate 64 Skirt part 100 Video equipment

Claims (21)

[Claims] 1. A housing for video equipment, comprising a metal member having a specific gravity of 2 or less, which is injection-molded, and a surface provided with an infrared absorbing film. 2. A housing for an image apparatus according to claim 1, wherein a paint containing an infrared absorbing agent is provided on the surface. 3. The thickness of the main surface is 0.8 mm to 2.2 m.
2. The housing for a video device according to claim 1, wherein the range is m. 4. The housing for a video device according to claim 3, wherein a facing distance between the main surfaces at an opening end on the fastening side is 320 mm or more. 5. The housing according to claim 4, wherein the depth of the housing is 150 mm or more. 6. A housing comprising a display and a control circuit section, wherein a metal member having a specific gravity of 2 or less is injection-molded, and an infrared absorbing coating is formed on an inner surface of the housing. A video device comprising: 7. The video apparatus according to claim 6, wherein the display is one of a CRT, a liquid crystal, and a plasma. 8. The thickness of the main surface constituting the housing is set to 0.8.
8. The video device according to claim 7, wherein the range is set to a range from 0.2 mm to 2.2 mm. 9. The video device according to claim 8, wherein a facing distance between the main surfaces at the opening end on the fastening side is 320 mm or more. 10. The video device according to claim 9, wherein a depth dimension of the housing is 150 mm or more. 11. A front plate on which a display is mounted, and a housing attached to the front plate so as to house a control circuit unit and a speaker device, wherein the front plate and the housing have a specific gravity of 2 or less. The member is injection molded,
An imaging device comprising an infrared-absorbing coating on each inner surface. 12. A display, comprising: a housing attached to an outer peripheral surface of the display so as to house a control circuit unit and a speaker device. The housing is formed by injection-molding a metal member having a specific gravity of 2 or less. An imaging device, further comprising an infrared absorbing coating on an inner surface. 13. A display, comprising: a control circuit unit; a housing attached to the display unit; and a speaker device disposed below the display, wherein a bottom plate, a skirt portion, and a bottom plate of the housing are provided. A speaker box is formed by a bottom cover plate disposed in opposition to the speaker box, and the casing is formed by injection molding a metal member having a specific gravity of 2 or less, and further includes an infrared absorbing coating on an inner surface. Video equipment. 14. The video device according to claim 13, wherein the right speaker box and the left speaker box are divided by a rib provided on the bottom plate. 15. A housing for a video device, wherein a metal member having a specific gravity of 2 or less is injection-molded, and at least the inner surface is blackened. 16. A main surface having a thickness of 0.8 mm to 2.2.
The housing of the video device according to claim 15, wherein the range is set to a range of mm. 17. A facing distance between main surfaces at an opening end on a fastening side is 320 mm or more.
7. The housing of the video device according to 6. 18. The housing according to claim 17, wherein the depth of the housing is 150 mm or more. 19. A housing for an image device, wherein a synthetic resin contains an infrared absorbing agent and is molded into a predetermined shape. 20. A housing for video equipment, wherein a synthetic resin is molded into a predetermined shape, and an infrared absorbing agent is provided on the inner surface. 21. The housing for an image device according to claim 20, wherein a paint containing an infrared absorbent is applied to the inner surface.