JP2514817Y2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a display device for illuminating a display device such as a vehicle such as an automobile or a ship, a display plate, a dial and the like.

[Conventional technology]

In general, for example, automobiles and motorcycles are provided with a display device for intensively notifying the driver of the operating state of various vehicle mechanisms or the failure location of each part.

In this case, the display of the operating state of various mechanisms of the vehicle, such as the speed warning display of the speedometer, the operating display of the direction indicator, the display of the hydraulic pressure of the engine, the display of the up / down state when the headlights are lit, etc. The same number of lamps as the number of items are arranged in a single synthetic resin case in the unit of a room partitioned by partition walls, and a display board with each display part such as pictures, letters, symbols corresponding to the front side of each room Are arranged to form a display device, and such a display device is arranged together with an instrument of a vehicle.

It is particularly desirable to arrange such a display device in one place on the dashboard of the vehicle from the viewpoint of visibility. Therefore, there is a tendency that a plurality of lamps are intensively arranged in a limited internal space. is there.

[Problems to be solved by the device]

In the above-mentioned conventional technology, since the display lamp is in the proximity state, the internal temperature of each room of the display device is increased due to the heat generated by lighting the display lamp in the partition partitioned by the case or room of the display device. There is a risk that the partition wall may rise or the partition wall may be thermally deformed by the heat, or the display plate disposed on the front side of each room may be deformed.

For this reason, as a measure against heat of the display device, it has been general that heat is escaped by ventilation by providing an opening in the case, but in consideration of heat resistance and air permeability, for example, the actual public As shown in Japanese Patent Laid-Open No. 63-30094, it is considered to separately provide a heat radiation reflection plate having a slit and to form a heat radiation path in this heat radiation reflection plate.

By the way, when a slit for ventilation is provided in the case, for example, a plurality of rooms of the display device may be connected vertically and horizontally depending on the structure of the display device. At this time, depending on the mounting angle of the case and the like, for example, when the case is mounted with the instrument or the display board facing the driver so as to face the driver, when the case is mounted on the lower side of each room of the display device, That is, in the interior of the room located at the lower part, the heat of the lamp tends to stay in the upper part of each room, and it becomes impossible to obtain a satisfactory heat dissipation effect, and the partition wall which is the upper side of the room is easily thermally deformed.

In order to avoid this point, when a heat-resistant member, for example, a heat radiation reflection plate made of a metal member is used, there is a problem that a new component or component processing is required and the component and the mounting cost become expensive. .

The present invention is intended to solve the above-mentioned problems, and the rise of the temperature inside the case due to the heat generation of the display lamp is located especially at the bottom without using new parts such as a heat shield plate and a heat radiation reflection plate. An object of the present invention is to provide a display device capable of increasing heat dissipation efficiency with an extremely simple structure by utilizing the convection effect of air inside a case including a room.

[Means for solving the problem]

While partitioning the interior of the synthetic resin case with a partition wall to form a plurality of rooms, a lamp is arranged on the bottom side of each room, and a picture, letters, corresponding to the front side of each room,
In a display device provided with a display plate provided with each display portion such as a symbol, the arrangement of each room in the case is arranged so as to connect at least a plurality of vertically, and the upper part of the partition wall of the room located above The wall is provided with a slit that communicates with the outside air, extends from at least one side wall of the room located in the lower part, and forms a wall part with a predetermined distance from the partition of the room located in the upper part. And a partition wall of the room located at the upper part of the case, and a heat radiation path that communicates with the room located at the lower part of the case is provided.

[Action]

With the structure of the present invention, among the rooms in which the heat of the lamp is plural in the vertical and horizontal directions, at least in the vertical direction, the room located in the lower part is radiated to the outside air by the radiating path.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

1 to 3 show a first embodiment of the present invention, in which a vehicle instrument will be described as an example.

A display device is formed inside the instrument case (not shown in the figure) integrally with the instrument case. This display device displays various mechanisms such as a vehicle by turning on a lamp 2 and displays the number of display items. The same number of lamps as the above are arranged in the bottom of a single synthetic resin case 1 in units of rooms 4A, 4B, 4C divided by partition walls 3, and the front side of the case 1 is provided with each of the rooms 4A, 4B, 4C. Corresponding to the above, a display plate 5 provided with a display portion (not shown) composed of pictures, characters, symbols, etc. is arranged.

This embodiment shows a case where the above-mentioned rooms 4A, 4B, 4C are arranged in a triple manner in the vertical direction, and the room located above the mounting angle of the case 1, that is, on the uppermost side
The upper partition 3a of 4A is provided with a plurality of slits 6 for ventilation. Further, the room 4B or less located on the inner side, in the room 4B, is continuous with the partition wall 3d on the left side of this room, the wall portion 7a for communication with the left partition wall 3b of the room 4A located at the top with a predetermined interval. A heat radiation path 8a is formed between the wall portion 7a and the left partition wall 3b of the room 4A, which is open above the case and communicates with the room 4B located below the case.
For room 4C located at the bottom, the partition on the right side
In succession to 3e, a wall 7b is formed at a predetermined interval with the partition wall 3c on the right side shared by the room 4B located at the center and the room 4A located at the top, and between this wall part 7b and the partition wall 3c. A room that opens above the case and at the bottom below
A heat radiation path 8b communicating with 4C is formed.

In this case, the heat generated by lighting the lamp 2 is radiated to the outside air by the slit 6 for ventilation formed in the upper partition wall 3a in the uppermost chamber 4A with respect to the mounting angle of the case 1, and Especially for the rooms 4B and 4C located at the center and the bottom, the heat generated by the lamp is located at the bottom due to the heat radiation paths 8a and 8b communicating with the rooms 4B and 4C and leading to the upper side of the case 1. room
Inside 4B and 4C, the outside air is ventilated without being trapped in the upper part of the room, the ventilation of the entire case is good, and the case itself is not unnecessarily enlarged. Need not be added, and various defects due to heat generation of the lamp, such as deformation of the partition wall or deformation of the display plate 5 or the like arranged on the front side of the case 1,
It is possible to prevent light leakage due to this.

FIG. 4 shows a second embodiment of the present invention. The basic structure of the display device is substantially the same as that of the first embodiment described above. Therefore, the description of the same parts will be omitted. Although omitted, here, the interior of the case 1 is partitioned by the partition wall 3 and the rooms 4D, 4E, 4F, 4G, 4H, 4J of the display device in which the lamp 2 is arranged at the bottom are arranged in the upper rooms 4D, 4E. , 4F,
The bottom shows the case where the rooms 4G, 4H, 4J and the three rooms are arranged in two rows above and below, above the installation angle of Case 1, that is, the top of each room 4D, 4E, 4F located at the top. The partition walls 3a, 3f, 3j are each provided with a slit 6 for ventilation.

In this case, in the three rooms 4D, 4E, 4F located on the upper stage, the heat generated by lighting the lamp 2 is radiated to the outside air by the slits 6 provided on the upper part. In the lower room 4G, the left partition 3d of this room is connected to the left partition of the upper room 4D.
By forming a wall portion 7a with a predetermined distance from 3b and forming a heat radiation path 8a between this wall portion 7a and the left partition wall 3b of the upper room 4D, the heat generated inside the room 4G is radiated by this heat radiation. Heat is dissipated into the outside air through the road. Similarly, in the room 4J located on the lower right, the wall 7b is formed continuously with the partition 3e on the right side of this room and at a predetermined interval with the partition 3c on the right side of the room 4F located above. By forming a heat dissipation path 8b between 7b and the partition wall 3c on the right side of the upper room 4F, room 4J
The heat generated in the inside is radiated to the outside air through this heat radiation path.

Further, in the room 4H located in the center of the lower stage, a wall portion 7c is formed continuously with the right partition wall 3h of this room and at a predetermined interval with the right partition wall 3g of the room 4E located in the upper stage. Since the heat dissipation path 8c is formed between the heat dissipation path 8c and the right partition wall 3g of the upper room 4E, the heat generated in the room located in the lower center is radiated to the outside air through the heat dissipation path 8c.

The wall portion 7c is also configured to serve as the left partition wall 3i of the upper right room 4F.

Therefore, the heat generated by lighting the lamp 2 inside each room 4D, 4E, 4F, 4G, 4H, 4J is efficiently dissipated to the outside air, especially the heat dissipation efficiency inside the room 4G, 4H, 4J located in the lower row. Therefore, problems such as deformation of the display plate 5 and the partition 3 due to high heat can be prevented.

FIG. 5 shows a third embodiment of the present invention. The main part has the same structure as the first and second embodiments, and each room 4 is divided into four parts, and the layout of each room is left and right. It shows the structure when the rooms are located 4K and 4L one by one, and 4M and 4N in the upper and lower two steps only in the center.

In both left and right room 4K, 4L, each room 4K,
A slit 6 is provided in the upper partition 3a, 3j and the lower partition 3c, 3e of 4L, and for the room 4M which is configured to ventilate and is located in the upper center of the drawing, the slit 6 of the upper wall surface 3f of this room 4M is used. It is designed to be ventilated.

For the room 4N located in the lower center, the slit 6 as a ventilation port provided in the lower partition 3i of this room,
It is continuous with the left and right partition walls 3g, 3h of this room 4N, respectively, and the right and left partition parts of the room 4K and the left partition part of the room 4L with a predetermined interval from the partition walls 3k, 3l of the upper and left room 4M. Walls 7a, 7b are formed in the space between the two wall parts 7a, 7b and the left and right wall parts 3k, 3l of the upper room 4M, which are open above the case 1 and located below the case 1 The heat radiation paths 8a and 8b communicating with the room 4N are provided.

The walls 7a and 7b are configured to also serve as the partition wall 3b on the upper right side of the left room 4K and the partition wall 3d on the upper left side of the room 4L on the right side, respectively.

With the structure described above, the slits 6 are provided in the upper partition walls 3a, 3j of the rooms 4K, 4L and also in the lower partition walls 3c, 3e to further improve the ventilation efficiency, and especially in the room 4N located in the lower center part. By providing the slits 6 in the lower partition walls, it is possible to further enhance the convection effect on the air in the room 4N located at the lower part, and it is possible to prevent the high heat in each partition wall.

It should be noted that the positions where the slits and the heat radiation paths are provided in each room, the number thereof, the combination thereof, and the like may be appropriately set in accordance with design conditions or use conditions.

[Effect of device]

The interior of the synthetic resin case is partitioned by partition walls to form a plurality of rooms, and a lamp is arranged on the bottom side of each room, and pictures, characters, symbols, etc. are provided corresponding to the front side of each room. In a display device provided with a display plate provided with each display unit, the arrangement of each room in the case is arranged to connect at least a plurality of in the vertical direction, on the upper wall surface of the partition wall of the room located above. A slit that communicates with the outside air is provided and extends from at least one side of the side partition wall of the room located at the bottom, and forms a wall part with a predetermined distance from the partition wall of the room located at the upper part, and the wall part and the upper part are located. By providing a heat dissipation path between the partition wall of the room and the room located above the case 1 and communicating with the room located at the lower part of the case 1, it is caused by lighting of the lamp particularly in the room located at the lower part. The heat in each room is efficiently dissipated to the outside air, and there is no need to dispose new parts or process new parts with an extremely simple structure, and make the entire case larger than necessary. Thus, it is possible to provide a display device having a compact heat dissipation structure.

[Brief description of drawings]

FIG. 1 is an overall sectional view of a display device showing a first embodiment of the present invention, FIG. 2 is a perspective view showing an essential part of the first embodiment, and FIG. 3 is a sectional view showing an essential part of the same embodiment. FIG. 4 is a front sectional view showing the second embodiment of the present invention, and FIG. 5 is a front sectional view showing the third embodiment of the present invention. Case …… 1, Lamp …… 2 Partition …… 3, Room …… 4 Display plate …… 5, Slit …… 6 Wall …… 7, Heat dissipation path …… 8a, 8b, 8c

Claims (1)

(57) [Scope of utility model registration request] 1. A synthetic resin case is partitioned by a partition wall to form a plurality of rooms, and a lamp is arranged on the bottom side of each room, and a picture is provided corresponding to the front side of each room. In a display device provided with a display plate provided with each display unit such as letters and symbols, an array of each room in the case is arranged so that at least a plurality of columns are connected in the vertical direction, and a partition wall of the room located above is arranged. A slit that communicates with the outside air is provided on the upper wall surface of the room, and it extends from at least one side of the side partition wall of the room located at the bottom, and forms a wall part at a predetermined interval with the partition wall of the room located at the upper part. A display device, characterized in that a heat dissipation path is provided between the partition wall of the room located above and above the case and communicated with a room located below below the case.