JP2612535B2 - Mounting base for illuminated display devices in mosaic panels - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[Industrial application field] A switchboard or a display panel is called a mosaic panel, and necessary display devices and the like are provided on each grid of grids formed in a vertical and horizontal grid by aluminum die casting or zinc aluminum die casting. 2. Description of the Related Art There is known an arrangement in which components such as instruments are arranged to form a board surface. Some components of the mosaic panel generate heat, such as an illuminated display device using light-emitting diodes. The present invention relates to a mounting base that makes it possible to attach and detach panel components that generate relatively large heat, such as the above-mentioned mosaic panel, mainly a high-density illuminated display device, to a grid.

[0002]

2. Description of the Related Art As shown in FIG. 7, a large number of light emitting diodes B, B are arranged on a substrate A at a high density of, for example, 16 dots vertically and horizontally and accommodated in a tile C. The conventional high-density illuminated display device that operates the diode does not allow the substrate A to be detachably attached to the grid of the mosaic panel, but fixes the substrate A to a fixed position of the mosaic panel by screws or the like. It is used to display characters and the like depending on the combination of light sources that emit light.

The present applicant has proposed an illuminated display device which is detachable from a grid, and in which a large number of light emitting diodes are arranged at a high density to obtain a high-luminance, evenly illuminated surface. No. 4-83376). In a high-density illuminated display device, there is a possibility that the generated heat will be stuck inside and the device will become hot. Therefore, in the above invention, the mounting base that is detachable from the grid is made of a metal having excellent thermal conductivity such as an aluminum alloy, and the grid made of the same metal is devised so that heat is released by heat conduction. Has achieved results. In addition, a specific structure of the metal mounting base and a method of efficiently manufacturing the mounting base from a mold (Japanese Patent Application No. 4-83377) have been invented.

[0004]

As shown in FIG. 7, when a substrate A on which light emitting diodes B are densely arranged is accommodated in a tile C, heat generated from the light emitting diodes B is trapped in the tile C. Adversely affect the driving device D. In particular, it has been confirmed that in a high-capacity illuminated display device in which light-emitting diodes are arranged at a high density, the temperature of the illuminated display surface reaches about 80 degrees. Patent application No. 4-
In the case where the mounting base is made of metal (aluminum) as in JP 83376, about 55% of the calorific value can be radiated by heat conduction to the grid.

However, when the mounting base is made of metal with a certain degree of dimensional accuracy, it is difficult to manufacture the mounting base. That is,
As a realistic manufacturing method, precision die casting and processing from a mold disclosed in Japanese Patent Application No. 4-83377 are used. However, precision die casting is costly, and processing from a mold by extrusion of aluminum is difficult. There is a disadvantage that the processing accuracy of the mold material is inferior. In view of such circumstances, a mounting base such as an illuminated display device in a mosaic panel capable of obtaining the effect of heat conduction by a metal mounting base while maintaining the processing precision of high-precision synthetic resin processing has been invented. It is.

[0006]

Means for Solving the Problems The mount 1 which forms the top plate 1a and the legs 1b on both left and right sides thereof is basically formed of a synthetic resin material. At this time, a radiator 2 having a top plate portion 2a and leg portions 2b formed on both left and right sides thereof by a metal plate having better thermal conductivity than a synthetic resin material is integrally molded with the synthetic resin material, and In 1b, the leg 2b of the heat radiator 2 is exposed at least on the outer side surface of the grid 3 that contacts the partition wall 3a. The radiator 2 may be separately manufactured and mounted so as to cover or caulk a mounting base made of a molded synthetic resin material.

[0007]

When the mounting base according to the present invention is manufactured, the outer shape is formed by the processing accuracy of the synthetic resin material, and the heat radiator 2 having excellent thermal conductivity is provided from the top plate portion 2a to the leg portion 2b. It is continuous and comes into contact with the partition wall 3a when it is mounted on the grid 3. Therefore, when a high-density illuminated display device with heat is mounted on the top plate 1a, a part of the generated heat is emitted from the front as radiant heat,
Part of the heat is transmitted from the top plate 2a of the radiator 2 to the grid 3 through the legs 2b, and is radiated from the entire grid of the mosaic panel. As a result, the illuminated display device and its driving device are not heated to a certain temperature or higher, and the influence of heat can be reduced as much as possible.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a mosaic type panel according to the present invention. FIG. 1 is a perspective view of a mounting base according to the present invention, and FIG.
Is a plan view of a mounting table, and FIG. 3 is a front view showing an example of a mosaic panel.

As shown in FIG. 3, the mosaic panel forms a grid 3 in a vertical and horizontal grid by aluminum die-casting or zinc aluminum die-casting. The board surface is configured by arranging constituent parts such as types. FIG. 3 shows an embodiment in which a plurality of high-density illuminated display devices having a size corresponding to four square paths are arranged adjacent to each other. Each of the high-density illuminated display devices is fixed to a mounting table with legs provided with claws for engaging with the partition walls 3a of the grid, and is detachable.

As shown in FIG. 1, the mounting table 1 passes through a grid channel 5 on both left and right sides of a top plate 1a having one side having an integral multiple of the pitch of the partition walls 3a, 3a of the grid 3. And a leg 1b having a claw 4 which engages with the partition wall 3a. The mounting base 1 itself is molded to a precise size with a synthetic resin material such as polycarbonate resin, but the surface of the top plate 1a and the legs 1b is provided with a radiator formed of a metal plate having good heat conductivity such as a copper plate. 2 is formed integrally with the synthetic resin material so as to be exposed.

The radiator 2 molded integrally with the synthetic resin material is
As shown in FIG. 4, legs 2b are formed in advance on both left and right sides of a top plate 2a having a predetermined size, and can be integrally molded with a synthetic resin material by insert molding. In the top plate portion 2a of the heat radiator 2, through holes 6 and 6 are formed in four places in the drawing. These through holes 6 are positioning holes for insert molding, and support pieces are provided in a molding die. And molded. Therefore, as shown in FIG. 1, through holes 7 are formed in the molded product at four locations. .

In the illustrated embodiment, the depth D of the heat radiator 2 is set to be slightly smaller than one side dimension of the mounting base, and a top plate portion made of only a synthetic resin material is formed on both front and rear portions. A large number of through holes 8 with a constant pitch are formed in the top plate portion made of only this synthetic resin material. The through-hole 8 allows a connection terminal of an electrical component to be mounted such as an illuminated display device to pass through, and can be electrically connected to a driving device or the like from the back of the grid.

Next, a use state of the illuminated display device will be described with reference to FIG. The illuminating board 10 is mounted on the top plate 1a of the mounting base 1 mounted on the grid 3 with an insulating mat 9 interposed therebetween.
Is fixed. A large number of light emitting diodes 11
And its wiring is printed. A reflector 12 is fixed around the outer periphery of the illuminating substrate 10, and a translucent plate 13 is mounted on the front end. For electrical connection to the illumination board, the connection terminals 14 are
Through the through-holes 8, 8 and is connected to the driving device 15 on the rear surface.

A part of the heat generated by turning on the light emitting diodes of the illuminated display device is radiated from the front transparent plate 13 as radiant heat. Part of the heat is conducted through the radiator 2 formed of a metal plate having excellent thermal conductivity, for example, a copper plate, and is transmitted to the grid 3 from the partition wall 3a in contact with the radiator 2. As a result, the generated heat is radiated to the atmosphere from the entire grid as much as possible, and the illuminated display device is prevented from being at an abnormally high temperature.

In the embodiment shown in FIG. 1, the radiator 2 is integrally molded when the mounting base 1 is molded from a synthetic resin material.
A radiator 2 formed of a separate metal plate may be attached to and integrated with a mounting base molded only of a synthetic resin material.

The mounting base according to the present invention is formed by molding an arbitrary synthetic resin such as polycarbonate resin. The radiator 2 integrally molded or mounted is made of a material having a high thermal conductivity as much as possible, for example, copper or copper alloy. It is preferred that In the illustrated embodiment, the case where the high-density illuminated display device is mounted on the mounting base is disclosed. However, the present invention can be used as a mounting base for panel components that generate heat such as various switch devices and instruments.

[0017]

According to the mounting stand for the illuminated display device in the mosaic panel according to the first aspect of the present invention, the configuration of the panel having a heat generating function, such as the high-density illuminated display device mounted on the top plate of the mounting stand. Since the heat of the components is efficiently dissipated from the legs of the radiator to the grid, the components of the panel and the driving device thereof are not affected by high temperatures. Also,
In the case where the entire mounting base is manufactured from, for example, an aluminum extrusion, it is difficult to obtain sufficient dimensional accuracy. However, according to the present invention, bending of a thin metal plate can be performed with sufficient precision, and molding with a synthetic resin material can be efficiently performed with sufficient precision. Therefore, it is possible to provide an inexpensively and efficiently mounting base having accurate dimensions.

According to the second aspect of the present invention, the heat radiator is reliably exposed to the outer surface and does not cause fogging of the synthetic resin material which hinders heat conduction of heat radiation. It can be attached to the target. Further, it can be shared with a mounting base for mounting a component that does not require a heat radiator.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a mounting base according to the present invention,

FIG. 2 is a plan view showing an embodiment of the mounting base according to the present invention;

FIG. 3 is a front view showing an example of a mosaic panel;

FIG. 4 is a perspective view of only the radiator of the mounting base according to the present invention,

FIG. 5 is a sectional view taken along line AA of FIG. 2;

FIG. 6 is a cross-sectional view showing a use state in which the mount according to the present invention is implemented as a mount for a high-density illuminated display device;

FIG. 7 is a longitudinal sectional view showing an example of a conventional high-density illuminated display device.

[Explanation of symbols]

1 mounting base, 1a top plate, 1b legs, 2 radiator, 2a
… Top plate, 2b… leg, 3… grid, 3a… partition wall,
Reference numeral 4: nail, 5: path, 6, 7, 8: through hole, 9: insulating mat, 10: illumination substrate, 11: light emitting diode, 12
… Reflector, 13… Transparent plate.

Claims (2)

(57) [Claims] 1. A leg 1b having a claw 4 for engaging a partition wall 3a of a grid 3 formed in a grid by vertical and horizontal partition walls on both left and right sides of a rectangular top plate 1a having a predetermined size, and a synthetic resin material. In the mounting table 1 for mounting an illuminated display device and the like having a heating action on the top plate 1a, the top plate portion 2a and the leg portions 2b are provided on both left and right sides of the mounting plate. The bent radiator 2 is molded integrally with a synthetic resin material, and the leg 1b has at least the leg portion 2b of the radiator 2 exposed on the outer side of the grid 3 in contact with the partition wall 3a. Mounting base for illuminated display devices in mosaic panels. 2. A leg 1b provided with claws 4 on both left and right sides of a rectangular top plate 1a having a predetermined dimension and engaging with a partition wall 3a of a grid 3 formed by vertical and horizontal partition walls. In the mounting table 1 for mounting an illuminated display device and the like having a heating action on the top plate 1a, the top plate portion 2a and the leg portions 2b are provided on both left and right sides of the mounting plate. The bent radiator 2 is mounted on the outer surface of a mounting base molded of a synthetic resin material, and the leg 1b has at least the leg 2b of the radiator 2 exposed on the outer surface in contact with the partition wall 3a of the grid 3. A mounting base for an illuminated display device or the like in a mosaic-type panel, wherein