JPH11233967A - Chassis member, chassis, and plasma display device provided with them - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the heat radiating property of a chassis member and reduce the weight of the member by improving the latitude in design of the member, without increasing facilities by forming the member to have a pair of flat plate sections facing each other, a plurality of fin sections arranged between the plane sections, and hollow sections partitioned by the fin sections, and integrally forming the end sections of the member as connecting sections. SOLUTION: A chassis member 1 is formed by integrally molding a pair of flat plate sections 2a and 2b, while fin sections 3,..., 3 are arranged in parallel between the sections 2a and 2b. The fin sections 3,..., 3 work to improve the heat radiating property of the member 1, and at the same time, to prevent the deformation of the member 1. The fin sections 3 may also be formed in a continuous waveform. Hollow sections 4,..., 4 partitioned by each fins 3,..., 3 become wind passages in, for example, a TV receiver and improve the heat radiating property of the member 1. Therefore, the heat radiating property of the chassis member 1 for the heat generated from a plasma display panel and a drive circuit can be improved to a sufficiently high level, when the arrangement, intervals, etc., of the respective fin sections 3,..., 3 are appropriately set at the design stage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chassis member having a heat-generating portion and installed in an apparatus requiring light weight, and more particularly, to a plasma display panel (hereinafter referred to as "PDP"). A chassis member for heat dissipation suitably used as a component of a wall-mounted television,
The present invention relates to a chassis and a plasma display device including the same.

[0002]

2. Description of the Related Art Various types of chassis members having a heat-generating portion and installed in a device that requires light weight have been developed in accordance with applications and purposes.

On the other hand, a PDP having a display capacity suitable for each purpose of use can be obtained. Except for the effective display portion, the display is small and requires no installation space, and the display has fluctuation, flicker, blur, distortion, The display quality represented by brightness, contrast, and the like is excellent, and practical application to various image display devices has been attempted.

A chassis member for supporting the PDP and arranging a drive circuit for operating the PDP is provided on the back side of the PDP.

Conventionally, this chassis member has a thickness of 2-3
mm aluminum veneer reinforced with a reinforcing material,
A device provided with a hole for mounting a drive circuit board is generally used.

[0006]

In the case of a conventional chassis member in which a single aluminum plate is reinforced with a reinforcing material for each PDP size, a press die must be prepared for each PDP size. However, there is a drawback that there is no degree of freedom in design and production efficiency is poor.

In addition, the conventional chassis member, which is formed by reinforcing an aluminum veneer with a reinforcing material, does not consider the heat generated in the PDP and the driving circuit when displaying image information on the PDP, so that the heat dissipation is low. There is also a problem that it is not enough.

The present invention has a high degree of freedom of design without increasing capital investment, exhibits sufficient heat dissipation, is lightweight and excellent in strength, and can be used particularly preferably in combination with a PDP. An object of the present invention is to provide a chassis member and a chassis, and a plasma display device including the same.

[0009]

According to a first aspect of the present invention, there is provided a chassis member comprising: a pair of opposed flat portions;
It is formed of an integrally formed material having a plurality of fin portions provided between the pair of flat portions and a hollow portion partitioned by the fin portions, and an end of the integrally formed material is a connecting portion. Preferably, the plurality of fins are provided in parallel with each other or in a continuous waveform, so that heat dissipation can be enhanced and deformation of the chassis member can be prevented.

A chassis according to the present invention is formed by connecting a plurality of the above chassis members. In this connection, it is preferable that the ends of the chassis member and the ends of the other chassis members are riveted through a connecting member, or are connected to each other by fitting.

With this configuration, a chassis corresponding to the size of the PDP can be obtained very easily without increasing capital investment, and a chassis having good heat dissipation and excellent strength can be obtained. .

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a chassis member 1 of the present invention comprises a pair of opposed flat portions 2a and 2b and a plurality of fin portions provided between the pair of flat portions 2a and 2b. , 3 and hollow portions 4,..., 4 partitioned by the fin portions 3,.
b. Plane portions 2a, 2b, each fin portion 3,
.., 3 and the connecting portions 5a and 5b are formed integrally by extrusion of an aluminum material, so that they have excellent thermal conductivity and can be preferably used as a chassis member for heat radiation. At this time, the thicknesses of the plane portions 2a, 2b and the fin portions 3,..., 3 can be appropriately set as desired.

In the chassis member 1 shown in FIG. 1, the fins 3,..., 3 are arranged in parallel, but the fins 3,. The arrangement of the fin portions 3 is not limited to this as long as it is formed into a shape, and may be arranged in a continuous waveform as shown in FIG. 2, for example. The fins 3 not only enhance the heat dissipation, but also have the function of preventing the chassis member 1 from being deformed.

The hollow portions 4,..., 4 partitioned by the fin portions 3,..., 3 serve as wind passages in a television receiver using, for example, a PDP, and have an action or function of improving the heat radiation of the chassis member. doing.

Therefore, in the chassis member 1, in the design stage, the arrangement of the fins 3,..., The installation interval, and the like are appropriately set so that, for example, when displaying image information on the PDP, The heat radiation to the heat generated from the drive circuit can be made sufficient.

The chassis member 1 can be used alone, but depending on the size of the PDP, as shown in FIG. 3, a plurality of chassis members 1, ..., 1 can be used in combination. By cutting and using the chassis member 1 in the extending direction of the hollow portion 4 according to the size of the PDP, a press die for each size becomes unnecessary.

In FIG. 3, bracket members 10a provided at the ends of the chassis members 1, 1 at the left and right ends, respectively.
10b, 10c, and 10d are formed separately from the chassis member 1, and as shown in FIG. 4, the chassis 6 that supports the PDP 20 and to which the drive circuit board 30 is fixed,
It has an operation or function as a support member for attaching to a storage case (not shown). The shape of the bracket member is not particularly limited. For example, in FIG. 4, U-shaped bracket members 11, 11 are provided at the ends of the chassis members 1, 1 at the left and right ends. The bracket members 11, 11 function as a support member for attaching the chassis 6 to a storage case (not shown). At this time, the PDP 20 is adhered to the chassis 6 with a double-sided tape, and the drive circuit board 30 is mounted on an aluminum plate 60 screwed to the chassis 6 as shown in FIG.

As shown in FIG. 6, for example, the chassis members 1 can be connected to each other by driving rivets 50 into the ends of the chassis members 1, 1 via an H-shaped connecting member 40. FIG. 7 shows details of the connecting member 40. The connecting member 40 is also made of an aluminum molding material, like the chassis members 1.

As shown in FIG. 8, it is also possible to use a chassis member 8 having one end 7a formed into a male mold and the other end 7b formed into a female mold. When connecting a plurality of the chassis members 8, as shown in FIG. 9, the male end 7a and the female end 7b are fitted to each other, and are connected using rivets 50. With this configuration, the connecting member 40 shown in FIG. 6 is not required, so that the number of working steps is reduced, and even if the number of rivets 50 is small, it can be firmly fixed as compared with the case where the connecting member 40 is used. .

Further, a plurality of chassis members, both ends of which are molded into a female mold, may be connected to each other by using a mouth-shaped connecting member to form a chassis.

By providing the above-described chassis member or chassis on the back side of the PDP, a plasma display device having excellent heat dissipation can be obtained. Further, it is possible to obtain a plasma display device in which the number of ventilation fans for lowering the temperature of the PDP is reduced, or a plasma display device which does not require a ventilation fan. Further, since the temperature of the PDP during operation can be lowered, it is possible to improve the display quality such as increasing the brightness of the PDP and extend the life.

[0022]

According to the chassis member of the present invention, there are provided a pair of opposed flat portions, a plurality of fin portions provided between the pair of flat portions, and a hollow portion partitioned by the fin portions. Since it is an integrally molded material, by appropriately selecting the cutting dimensions and the number of combinations of this integrally molded material, it is possible to extremely easily meet a desired size, for example, the size of a PDP without increasing capital investment. It can be a chassis member for heat dissipation. Further, it is possible to sufficiently consider heat radiation from the design stage, and furthermore, it is possible to obtain a chassis member for heat radiation which is lightweight and excellent in strength.

According to the chassis of the present invention, a plurality of chassis members can be connected according to a desired size, for example, the size of a PDP, so that a chassis excellent in heat dissipation and excellent in strength can be obtained very easily. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a chassis member of the present invention.

FIG. 2 is a plan view showing an example of an arrangement of fin portions in the chassis member of the present invention.

FIG. 3 is a front view showing an example of the chassis member of the present invention.

FIG. 4 is an explanatory diagram showing a relationship among a chassis member, a plasma display panel (PDP), and a driving circuit according to the present invention.

FIG. 5 is a plan view showing an example in which a drive circuit is provided on the chassis member of the present invention.

FIG. 6 is a plan view showing an example of a connecting portion when a plurality of chassis members of the present invention are used by connecting them.

FIG. 7 is a plan view showing an example of an H-shaped connecting member used when connecting a plurality of chassis members of the present invention.

FIG. 8 is a plan view showing another example of the chassis member of the present invention.

FIG. 9 is a plan view showing one embodiment of a connecting portion when connecting a plurality of chassis members of the present invention.

[Explanation of symbols]

 Reference Signs List 1 chassis member 2a, 2b flat portion 3 fin portion 4 hollow portion 5a, 5b connecting portion 6 chassis 7a male end 7b female end 8 chassis member 10a, 10b, 10c, 10d bracket member 11 U-shaped bracket member 20 Plasma display panel (PDP) 30 Drive circuit board 40 H-shaped connecting member 50 Rivets 60 Aluminum plate

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshihide Imamura 2-3-3 Shiba, Minato-ku, Tokyo Inside MFA FabTech Co., Ltd.

Claims (8)

[Claims] 1. An integrally formed material having a pair of opposed flat portions, a plurality of fin portions provided between the pair of flat portions, and a hollow portion partitioned by the fin portions,
A chassis member, wherein an end of the integrally molded material is a connecting portion. 2. The chassis member according to claim 1, wherein the plurality of fin portions are provided in parallel with each other. 3. The chassis member according to claim 1, wherein the plurality of fin portions are provided in a continuous waveform. 4. The chassis member according to claim 1, wherein the chassis member is made of aluminum. 5. A chassis comprising a plurality of the chassis members according to claim 1 connected to each other. 6. A chassis in which the ends of the chassis member according to claim 1 are riveted and connected via a connecting member. 7. A chassis in which the ends of the chassis member according to claim 1 are fitted and connected to each other. 8. A plasma display comprising the chassis member according to claim 1 or the chassis according to claim 5 provided on a back side of a plasma display panel. apparatus.