JPH0428931A - Structure of sensor case - Google Patents

Abstract

PURPOSE:To enable easily looking into the inside of a photosensor in maintenance and repair service and facilitate the replacement of the substrate or LED inside by separating the photosensor part and, after remodeling it into a photosensor case, by attaching it to a panel where an outlet is located. CONSTITUTION:A sensor case can be divided into two parts, one being a case bottom 8 and the other being a sensor cover 9. The case bottom 8 has the shape of L and is fixed to a panel with the lateral plane of the case bottom against the panel. A cushioning seat 15 and a heat insulator 16 are interposed between the panel 1 and the lateral plane of the case bottom 8 for the purpose of preventing transmission of heat from the panel to the sensor case. The sensor cover 9 has protrusions 11, one in the front and two in the back, and wedges 13, one of which is on the left of the front protrusion 11 and the other of which on the right, so that by fitting into a hole in the case bottom 8 corresponding to the protrusion they allow the case bottom 8 to be fitted in and removed easily. Windows for LED are formed in the sensor cover 9 and serve to ease the positioning. For the repair service and maintenance of the photosensor 14, the substrate 10 inside can be checked for a fault and replaced easily by removing the sensor cover 9 and without the need for detaching the panel.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a light receiving sensor box in a panel of a wireless remote control compatible device for a ceiling-mounted air conditioner.

[Conventional technology]

The structure of a conventional light-receiving panel is such that a light-receiving sensor section is provided in a part of the panel cabinet, as shown in the upper right figure.

[Problem to be solved by the invention]

In the conventional technology, insufficient consideration was given to the service and maintenance work of the light receiving sensor section, and during service and maintenance, it was necessary to remove the panel from the ceiling, place the panel on the floor, and service the light receiving sensor section from the back side. Ta. In this way, when removing a large panel from the ceiling, it is difficult to remove the wiring connector between the board inside the light receiving sensor attached to the panel and the product itself because it is inside the ceiling and in a narrow space. It was difficult.

It is an object of the present invention to easily open the interior of the light receiving sensor during service and maintenance, and to remove the internal board and LE.
The purpose is to facilitate the replacement work of D.

Further, in order for the light receiving sensor section to obtain a highly accurate signal, it is necessary to ensure that the distance between the filter on the surface of the sensor box cover and the light receiving sensor section is within a range of -.

[Means to solve the problem]

In order to achieve the above object, the present invention separates a light receiving sensor section and attaches it to a blowout part of a panel as a light receiving sensor box. Therefore, the sensor box has the following structure.

1) The sensor box has a structure that can be divided into two parts: a box bottom 8 and a sensor cover 9.

2) The box bottom 8 is L-shaped and has a structure in which the side of the box bottom is fixed to the panel side.

3) A structure is adopted in which buffer dust 15 and heat insulating material 16 are interposed between the mounting surface of the box bottom 8 and the panel 1.

4) A structure in which one protrusion is provided on the front surface of the lid cover 9 and two protrusions on the rear surface, and cut-in portions 13 are provided on the left and right sides of the front protrusion, which fit into the corresponding protrusion holes in the box bottom 8. did.

5) The position of the board 1o installed in the sensor box was designed so that the distance between the light receiving sensor section 14 and the surface of the sensor cover was 2m1 to 3m.

[Effect]

1) The sensor box is divided into two parts, and the combination of the protruding part of the cover and the cut-in part 13 allows the sensor cover to be easily attached to the bottom of the box due to the spring effect of the cut-in part 13 of the sensor cover when the sensor box is mounted on the panel. 2) The panel side and box bottom 8 side are covered with buffer dust 15 and heat insulating material 16.
This structure prevents the fixing screws that fix the sensor box and the panel side from loosening due to the thermal cycle of the blown air, and also prevents heat transfer from the panel side to the sensor box. 6 3) Set the distance between the light receiving sensor section 14 and the sensor cover surface to 2
By ensuring that mW is 11 to 31111, it is possible to suppress as much as possible the diffused reflection of light after passing through the filter on the cover surface, and to expand the receivable range by moving closer to the filter surface.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

The sensor box 2 is arranged at the air outlet part 3 of the panel 1 of the ceiling cassette type air conditioner, and is connected to the box outlet body, the box bottom 8 and the sensor box cover 9.
The sensor box 2 is attached to the panel 1 and the mounting flange portion 18 of the L-shaped box bottom 8 via a buffer dust 15 and a heat insulating material 16.

The mounting flange portion 18 of the box bottom 8 is separated from the shaft 5 by a U cut at an angle of 45 degrees so that the sensor box 2 can be attached and detached without removing the shaft 5 of the horizontal blade.

The sensor box 2 is divided into a box bottom 8 and a sensor box cover 9.
The sensor cover 9 has one protrusion on the front side and two protrusions on the rear side, on the left and right sides of the front protrusion.

It has an interrupting part 13, and when the protruding part of the sensor cover 9 is inserted into the hole 12 corresponding to the protruding part of the box bottom 8, it is structured so that it can be attached smoothly due to the spring effect of the sensor cover.

Further, the light receiving sensor section 14 is fixed to the light receiving substrate 10, and the substrate 10 is fixed to the box bottom 8, so that the distance 17 from the surface of the sensor box cover 9 is kept within a range of 2 m to 3 m11. There is. Further, the wiring from the board to the panel 1 side can be separated at the connector section on the board.

By adopting these structures, when performing service and maintenance work on the wireless remote control light receiving section, not only can failure diagnosis of the internal board 10 be performed by removing the sensor cover 9 without removing the panel, but also The board can now be easily replaced by removing the wiring from the connector on the board. Furthermore, the distance between the light receiving sensor section and the cover surface could be easily secured, and reliability could be improved. In addition to the light receiving sensor, the sensor box cover 9 side is provided with windows for displaying LEDs for operation, light receiving, and timer, and their positioning is easy in this method.

〔Effect of the invention〕

According to the present invention, the light-receiving sensor section can be installed by simply removing the sensor box cover without having to attach or detach the panel attached to the ceiling. 1) Failure diagnosis of the board can be easily performed.

2) Replacing the board can be easily done by removing the wiring from the connector section on the board. 3) Variations in the light receiving range of the light receiving sensor section can be suppressed by correctly managing the distance between the sensor box surface and the light receiving sensor section. be able to.

There are effects such as

[Brief explanation of drawings]

Fig. 1 is a layout diagram of a panel to which a light receiving sensor box according to an embodiment of the present invention is attached, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is an explanation of the sensor box. 4A and 4B are explanatory diagrams showing how the sensor box and the panel at the air outlet are attached. DESCRIPTION OF SYMBOLS 1... Panel, 2... Light receiving sensor box, 5... Shaft for horizontal blades, 8... Box bottom, 9... Sensor box cover, 11... Protrusion part, 13... Interrupt part , 14...
Light receiving sensor.

Claims (1)

[Claims] 1. In a wireless remote control light receiving sensor box for a ceiling-mounted air conditioner, the sensor box has a two-part structure consisting of a lid cover and a box bottom, and the lid cover side has a window for sensor light receiving. and operation, light reception,
There are LED windows for each timer display, and one protrusion on the front and two protrusions on the rear.
The box bottom is attached to the side surface of the panel via a buffer seat, and one hole for receiving the protrusion of the lid cover is provided on the front side of the bottom cover and two holes on the rear side of the bottom cover. A structure of a sensor box characterized by: