JP3494089B2 - Display panel of electrical equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display panel of an electric device, particularly a printed board on which various display elements are mounted, and a display window having various display elements which can be viewed through the display window. As described above, the present invention relates to a display panel of an electric device including a panel body in which a printed circuit board is mounted inside a display window.

[0002]

2. Description of the Related Art A display window is provided on a front panel of an electric device, and a printed board on which a display element is mounted is arranged inside the display window to display according to an operating state. The display by this display element can be seen from the outside through the display window, and is provided as a display element.
The operating state can be determined by the lighting state of the ED or the like.

[0003]

The elements provided in such a display panel have variations in mounting height, and display elements having a low mounting height such as a 7-segment LED are mounted and other mounting heights are mounted. When it is attached to the panel body in accordance with the high element, the 7-segment LED is arranged inwardly with a space from the display window. In this case, there is a problem in that the visibility of the 7-segment LED deteriorates depending on the angle at which the display panel is viewed.

In particular, like an indoor unit of an air conditioner,
In an electric device that transmits / receives data to / from a remote controller, a light-receiving element and a transmitting LED are provided on a front panel in order to transmit / receive infrared data to / from the remote controller. Many of the light receiving elements for transmitting and receiving the infrared rays and the LEDs for transmission have a high mounting height, and when mounted on the same printed circuit board as the 7-segment LED, the mounting height varies.

Therefore, when the printed circuit board is mounted inside the panel body, the 7-segment LED is arranged at a distance from the display window when the mounting height of the LED for infrared transmission is matched with the mounting height. The sex becomes worse. On the other hand, 7-segment LED on different printed circuit
It is conceivable to mount the infrared transmitting LED and the infrared transmitting LED, and separately mount them on the panel body. In this case,
There are problems that it is necessary to prepare different printed circuit boards and that the mounting work becomes complicated.

It is also possible to provide a step at a corresponding position on the printed circuit board in accordance with each element to be mounted so that the mounting height of each element is matched. In this case,
It is necessary to mold the printed circuit board according to each element,
The work becomes complicated and cost reduction becomes difficult.
An object of the present invention is to improve the visibility of a display element when a printed board on which various elements including a display element are mounted is mounted inside a panel body having a display window.

[0007]

A display panel of an electric device according to the present invention has a mounting height among various elements including a display element.
Higher element is arranged on one side in the length direction, and mounting height is low
A printed board on which the display element is arranged and mounted on the other side in the length direction, and a display window are attached to the inside of the display window so that the display element on the printed board can be seen through the display window. In a display panel of an electric device including a panel body, the printed circuit board is tilted with respect to the panel body so that a distance between a display element mounted on the printed circuit board and a display window becomes small.

Here, the various elements include an element having a low mounting height and an element having a high mounting height, and the printed circuit board is mounted so that the mounting position of the element having the low mounting height is inclined forward. Can be configured. The element with a low mounting height can be a 7-segment LED, and the element with a high mounting height can be an infrared transmitting LED.

Further, the electric equipment may be an indoor unit of an air conditioner.

[0010]

1 shows an indoor unit of an air conditioner in which an embodiment of the present invention is adopted. The indoor unit 1 is configured to include a casing body 2 attached to the wall surface of the room and a front panel 3 attached to the front surface of the casing body 2. The front panel 3 includes a front panel body 22 having a front opening 28 formed therein, and a shielding panel 23 arranged in front of the front opening 28. Front panel body 2
There is a gap between 2 and the shielding panel 23,
A front suction port 26 for sucking indoor air is formed.

The casing body 2 includes a rear frame 11
And a front frame 12 arranged on the front surface thereof.
The front frame 12 is provided with an upper surface inlet (not shown) located on the upper surface and a blower opening (not shown) located on the lower side. A display unit 31 as shown in FIG. 2 is provided at the center of the lower front surface of the front frame 12. The display unit 31 is a driving display unit 3 that indicates whether or not the vehicle is driving.
2. Timer display section 3 showing whether or not the timer is operating
3, 7-segment display for indicating temperature or humidity 3
4 and so on. A nameplate 35, which is partially transparent, is attached to the display unit 31 so that the LED elements and 7-segment LEDs arranged inside can be viewed.

<Mounting Structure of Printed Circuit Board> As shown in FIG. 3, the portion of the front frame 12 located on the display portion 31 constitutes a mounting frame 36 for mounting the printed circuit board 41. When the printed board 41 is mounted on the mounting frame 36, the light emitting elements 4 such as LEDs mounted on the printed board 41 are mounted on the mounting frame 36.
A partition frame 39 is formed to divide the two light emitting positions.

Further, an upper claw 37 and a lower claw 38 for supporting the printed circuit board 41 are provided on the inner surface side of the mounting frame 36 so as to project inward. This upper nail 3
At least one of the lower claw 7 and the lower claw 38 is made of an elastic member. When the printed board 41 is pressed from the inner surface side of the mounting frame 36, the distance between them is widened and the printed board 41 is brought into a predetermined position. At this time, the upper and lower parts of the printed circuit board 41 are supported.

The indoor unit of the air conditioner shown here is supposed to be mounted on the upper portion of the wall surface in the room, and in consideration of the visibility of the display unit 31, the printed circuit board 41 is installed downward when the printed circuit board 41 is mounted. The upper claw 37 and the lower claw 38 are set so as to be tilted and supported. A plurality of upper claws 37 and lower claws 38 are arranged in the length direction of the display unit 31, and are configured to support a plurality of positions in the length direction of the printed board 41.

As shown in FIG. 4, the printed circuit board 41 receives a 7-segment LED 43 for displaying numerical values such as temperature and humidity, an LED 44 provided for displaying operating conditions and various kinds of data, and data from a remote controller. Infrared light receiving element 45 for transmitting, infrared transmitting LEDs 46 and 47 for transmitting data to a remote controller, and various other elements are mounted.

The partition frame 39 of the mounting frame 36 is formed corresponding to various elements mounted on the printed circuit board 41, as shown in FIG. Here, the 7-segment LED 43 and the LEDs 44a to 44 on the printed circuit board 41 are used.
j, infrared ray receiving element 45, infrared ray transmitting LEDs 46, 4
Corresponding to No. 7, storage parts 51a to which each light emitting element is stored.
A partition frame 39 is provided so as to form 51l.

As shown in FIGS. 4 and 5, the printed circuit board 4
On top of the 1 is a 7-segment LED 4 with a relatively low mounting height.
3 is attached to the left side of the figure. Further, the infrared light receiving element 45 and the infrared transmitting LED 4 having a high mounting height are provided.
Reference numerals 6 and 47 are provided on the right side of the printed circuit board 41 in the figure. When the printed board 41 is attached in parallel with the nameplate 35, the infrared light receiving element 45 having a high mounting height and the LEDs 46, 47 for infrared transmission have a high mounting height.
The distance between the ED 43 and the nameplate 35 becomes large. In this case, the visibility of the 7-segment LED becomes worse,
Depending on the viewing angle, part of it may not be visible.
Especially for the 7-segment LED 43 that displays numerical values,
Because some of them are not visible, it may not be possible to read accurate values.

In the present invention, as shown in FIG. 5, the printed circuit board 41 is mounted so as to be inclined with respect to the nameplate 35. Here, the 7-segment LED 43 is set so that the left side of the printed board 41 in the drawing is inclined to the front side (upper side of the drawing) so that the 7-segment LED 43 approaches the nameplate 35. For this purpose, the printed circuit board 4
The position of the tip of the upper claw 37 and the position of the lower claw 38 for supporting 1 are set so as to be a predetermined distance in correspondence with the length direction.

As a result, when the printed circuit board 41 is mounted on the mounting frame 36, the 7-segment LED 43
Partition plate 52a of the partition frame 39 that constitutes the storage portion 51a of
The 52b prevents the 7-cement LED 43 from being blocked and prevents the visibility of the 7-segment LED 43 from being deteriorated. The structures of the upper claw 37 and the lower claw 38 for supporting the printed circuit board 41 are not limited to those shown in the figure, and only the lower claw 38 is elastic, and both the upper claw 37 and the lower claw 38 are elastic. May be included.

<LED for infrared transmission> LE for infrared transmission
D46 and 47 are for transmitting data to the remote controller. Usually, the infrared transmitting LEDs 46, 47
Has a small emission angle and a small data transmission angle. Therefore, by mounting a plurality on the printed circuit board 41 and setting the angles at different angles, it becomes possible to transmit data to the entire room. Figure 4,
As shown in FIG. 5, two infrared transmission LEDs 46 and 47 are mounted on the printed circuit board 41. Of these, one infrared transmission LED 46 is inclined to the right in FIG. 4, and the other infrared transmission LED 47 is inclined to the left in FIG. As a result, data can be transmitted in all directions in front of the indoor unit.

A portion of the partition frame 39 of the mounting frame 36 corresponding to the infrared transmitting LEDs 46 and 47 constitutes guide members 61 and 62 as shown in FIGS. 6 and 7.
The guide member 61 includes a base portion 63 standing upright in a direction perpendicular to the surface of the printed circuit board 41 to be mounted, and a guide portion 65 forming an inclined surface 64 on the inner side of the apparatus. Similarly, the guide member 62 includes a base portion 66 and a guide portion 68 having an inclined surface 67.

When the infrared transmitting LEDs 46 and 47 are mounted on the printed circuit board 41 by soldering, they are mounted so as to be perpendicular to the surface of the printed circuit board 41 as in the usual case. When mounting the printed circuit board 41 on the mounting frame 36, the printed circuit board 41 is moved in the direction of arrow A shown in FIG. The upper claw 37 shown in FIG.
By moving the lower claw 38 to a position where the printed circuit board 41 is supported, the printed circuit board 41 is placed at a predetermined position.

When the printed circuit board 41 is mounted at a predetermined position, the tip of the infrared transmitting LED 46 is guided by the guide member 61.
8 is contacted with the inclined surface 64, and is guided in the direction of arrow B in FIG. This allows LE for infrared transmission
The lead wire of D46 is bent rightward in the drawing and is inclined in a predetermined direction. Similarly, LE for infrared transmission
The tip end of D47 contacts the inclined surface 67 of the guide member 62 and moves leftward in the drawing. As a result, the lead wire of the LED 47 for infrared transmission is bent in the left direction of the drawing and is inclined in a predetermined direction.

With this structure, the infrared transmitting LEDs 46 and 47 can be set at a desired angle only by mounting the printed circuit board 41 at a predetermined position.
The work can be simplified. Further, by providing a guide member having the same configuration as the guide members 61 and 62 at a position where an element having a relatively long lead wire such as a capacitor is mounted, the element is inclined when the printed circuit board is attached. Therefore, it is possible to cope with a case where the mounting space on the front surface of the printed circuit board is small.

In this embodiment, an example in which the air conditioner is used as an indoor unit is shown, but the present invention is not limited to this, and can be used in other electric equipment.

[0026]

According to the present invention, since the printed circuit board is mounted so as to be inclined with respect to the panel body so that the distance between the display element mounted on the printed circuit board and the display window becomes small, the mounting height is different. Even when the display devices are mixed, the display element can be positioned in the display window without impairing the visibility.

[Brief description of drawings]

FIG. 1 is a perspective view showing the appearance of an indoor unit of an air conditioner to which an embodiment of the present invention is applied.

FIG. 2 is a front view showing an example of the display unit.

FIG. 3 is a vertical sectional view of a mounting frame.

FIG. 4 is a front view of a printed circuit board.

FIG. 5 is a sectional view when a printed circuit board is mounted.

FIG. 6 is a vertical cross-sectional view of a guide member.

FIG. 7 is a front view of a guide member.

FIG. 8 is an explanatory diagram when mounting the printed circuit board.

[Explanation of symbols]

31 Display 36 mounting frame 37 Upper nail 38 Lower claw 39 dividers 41 printed circuit board 43 7-segment LED 44 LED 46,47 infrared transmission LED 61,62 guide member 64,67 Inclined surface

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-9-261783 (JP, A) JP-A-8-8552 (JP, A) JP-A-62-193023 (JP, A) Actual development Sho-63- 194222 (JP, U) Actual Kaihei 2-333487 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) G09F 9/33 F24F 1/00 401 G09F 9/30 342

Claims (5)

(57) [Claims] 1. Various elements (43, including a display element (43)
44, 45, 46, 47) with a high mounting height
(45, 46, 47) is placed on one side in the length direction and mounted
A display element (43) having a low height is arranged on the other side in the longitudinal direction.
The printed circuit board (41) mounted on the printed circuit board (4) and the display circuit (4) having a display window so that the display element (43) on the printed circuit board (41) can be seen through the display window.
1) is a display panel of an electric device including a panel body (3) attached inside the display window, the display element (43) mounted on the printed board (41) and the display window. A display panel of an electric device, in which the printed circuit board (41) is attached so as to be inclined with respect to the panel body (3) so that the space between the two becomes small. 2. The various elements are elements having a low mounting height (4
3) and elements (45, 46, 47) having a high mounting height, and the printed circuit board (41) is attached such that the position where the element (43) having a low mounting height is mounted is inclined forward. The display panel of the electric device according to claim 1, wherein 3. The low mounting height element is a 7-segment L
The display panel of the electric device according to claim 2, which is an ED (43). 4. The device having a high mounting height is L for infrared transmission.
The display panel of the electric device according to claim 2, which is an ED (46, 47). 5. The display panel for an electric device according to claim 1, wherein the electric device is an indoor unit of an air conditioner.