JP5340074B2 - Air conditioner indoor unit - Google Patents

Description

  The present invention relates to an indoor unit of an air conditioner, and more particularly to an indoor unit of an air conditioner having an infrared light receiving function for receiving infrared rays emitted from an infrared remote controller.

  Conventionally, an indoor unit of an air conditioner (hereinafter referred to as an “indoor unit”) having an infrared light receiving function for receiving an infrared signal emitted from an infrared remote controller is provided with an infrared transmission window in the outer shell of the indoor unit, An infrared light receiving element is arranged inside. An invention is disclosed in which an infrared light guide material for guiding infrared light is provided between the infrared transmission window and the infrared light receiving element so as to widen the light receiving range of the infrared light receiving element (for example, Patent Documents). 1).

JP-A-8-172400 (page 2-3, FIG. 1)

In the indoor unit disclosed in Patent Document 1, an air outlet from which conditioned air is blown out is provided in the vicinity of the infrared transmission window, and an up-and-down wind direction plate is arranged at the air outlet. Such an up-and-down wind direction plate rotates a predetermined range around a horizontal rotation axis, and closes the outlet or changes the blowing direction of the air blown out from the outlet to the up-down direction (directly below, diagonally downward forward, etc.). It is.
Therefore, when the vertical wind direction plate rotates, a part of the vertical wind direction plate enters the infrared light receiving range of the infrared light receiving element, and the infrared ray (same as the infrared signal) emitted from the infrared remote control is weakened, Or, there is a problem that the detection sensitivity of the infrared rays is lowered due to being blocked, or the infrared rays are not detected.

  The present invention has been made in order to solve the above-described problem, and an infrared ray emitted from an infrared remote controller even when a part of an up-and-down wind direction plate enters an infrared light receiving range of an infrared light receiving element. An object of the present invention is to obtain an indoor unit having an up and down wind direction plate that is difficult to prevent the transmission of air.

An indoor unit of an air conditioner according to the present invention is arranged in a main body in which a suction port and an air outlet are formed, an air blowing unit that forms an air passage from the suction port to the air outlet, and the air passage. A heat exchange means, an up-and-down wind direction plate that is rotatably installed in the main body and changes the blowing direction of the air blown from the blow-out port, and is installed in the main body side by side with the blow-out port and receives infrared rays An infrared receiver, and when the vertical wind direction plate rotates, from the edge of the vertical wind direction plate in the first range of the vertical wind direction plate that enters the infrared light receiving range of the infrared light receiver third ranges excluding second range of predetermined width, characterized in that it is thinner than the range, except the third range.

  Since the indoor unit of the air conditioner according to the present invention has a thin range formed in a part of the up-and-down wind direction plate, when the up-and-down wind direction plate rotates, the infrared light receiving unit has the infrared light receiving range within the range. Even if a thin-walled area enters, it is difficult to inhibit infrared transmission. Therefore, the infrared rays emitted from the infrared remote controller (the same as the infrared signal) are not weakened or blocked, so that the infrared detection sensitivity is not lowered and the infrared rays cannot be detected.

The front view explaining the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. The perspective view which decomposes | disassembles and shows the structural member explaining the indoor unit of the air conditioner shown in FIG. Sectional drawing of the side view explaining the indoor unit of the air conditioner shown in FIG. The bottom view which shows a part (infrared light emitting element) explaining the indoor unit shown in FIG. The perspective view and sectional drawing which show a part (front up-and-down wind direction board) explaining the indoor unit shown in FIG. The front view of the driving | running state explaining the indoor unit shown in FIG. The side view of the driving | running state explaining the indoor unit shown in FIG.

[Embodiment 1]
(Air conditioner indoor unit)
1 to 7 illustrate an indoor unit of an air conditioner according to Embodiment 1 of the present invention. FIG. 1 is a front view in a resting state, and FIG. 2 is a perspective view showing components disassembled. 3 is a sectional view in side view, FIG. 4 is a bottom view showing a part (infrared light emitting element), FIG. 5 (a) is a perspective view showing a part (front vertical wind direction plate) taken out, FIG. (B) is a partial cross-sectional view showing a part (front vertical wind direction plate), FIG. 6 is a front view of the operating state, and FIG. 7 is a side view of the operating state. In addition, in each figure shown below, the same code | symbol is attached | subjected to the same part or an equivalent part. Moreover, each figure is drawn typically, Comprising: This invention is not limited to the illustrated form, It can implement in various changes within the scope of this invention.

  1 to 4, an indoor unit (hereinafter referred to as “indoor unit”) 100 of an air conditioner 100 reaches an indoor unit body 10 including a suction port 10a and a blower outlet 10c, and the suction port 10a to the blower outlet 10c. It has the ventilation means 9 which forms the air path 10b, and the heat exchange means 8 arrange | positioned in the air path 10b.

(Indoor unit body)
The indoor unit body 10 includes a base 11 (hereinafter, the base 11 side is referred to as a “rear surface”) that is fixed to an indoor wall or the like, and a housing 14 that is fixed to the base 11. And the front design panel 13 which covers the front opening part of the housing | casing 14 is installed in the front side of the housing | casing 14 so that attachment or detachment and rotation are possible (same as the front surface of the indoor unit main body 10).
A suction port 10a is formed on the upper surface of the housing 14, an air outlet 10c is formed on the lower surface (including a part of the front surface) of the housing 14, and a part of the base 11 is a part of the air passage 10b ( The rear side).

The air blowing means 9 is attached to the base 11 and forms an air passage 10b.
The heat exchanging means 8 is mounted on the base 11 and includes a rear side portion and a front side portion, and is disposed upstream of the air blowing means 9 in the air passage 10b and supplied from an outdoor unit (not shown). The heat transfer tube 8a through which the refrigerant is circulated and a plurality of heat radiation fins 8b through which the heat transfer tube 8a passes are provided.
A drain pan 7 a that receives drain dripped from the heat exchanging means 8 is mounted on the base 11 below the front side portion of the heat exchanging means 8. In addition, the lower surface of the drain pan 7a forms a part of the air passage 10b, and a left / right airflow direction adjusting device (not shown) is installed.

(Vertical wind direction plate)
Moreover, the front upper / lower airflow direction board 1 and the lower surface vertical airflow direction board 2 are arrange | positioned at the blower outlet 10c. Both the front vertical airflow direction plate 1 and the lower vertical airflow direction plate 2 are rotatable about a horizontal rotation axis, open and close the air outlet 10c, and air blown from the air outlet 10c. Is changed in the vertical direction.
In addition, the front vertical wind direction plate 1 and the lower vertical wind direction plate 2 are installed side by side in the horizontal direction (left and right direction), respectively, and each part is different (presence or absence of “thin range 1c” described below). Since they have the same shape or plane symmetry, the same reference numerals are used. Further, the present invention does not limit the quantity, and may be one sheet or three or more sheets.
A drain pan unit 7 is formed by the drain pan 7a, the front vertical wind direction plate 1 and the lower vertical wind direction plate 2.
Further, an automatic filter cleaning unit 6 for cleaning the filter 6a is detachably and movably installed near the front surface near the suction port 10a of the air passage 10b (screws are attached to the heat exchanging means 8 by a nail on the base 11). Respectively). And the dust box (not shown) for storing the dust which fell from the filter 6a is installed in the approximate center of the up-down direction of the front opening part.

(Electrical box)
Further, an electrical component box 5 is mounted near one end of the base 11. The receiving part holding member 3a is provided on the outer surface of the electrical box 5, and the receiving part holding member 3a receives an infrared light receiving element (hereinafter referred to as "infrared light") received from an infrared remote controller (not shown). 3) is installed. At this time, the receiver 3 has a conical or elliptical cone-shaped infrared light receivable range (indicated by “R” in the figure).
And the receiving part 3 is covered with the receiving part cover 3b formed of the material which permeate | transmits infrared rays, and the receiving part cover 3b is the edge part of the blower outlet 10c of the main body 10, ie, one edge part of the front up-and-down wind direction board 1. Arranged side by side and exposed to the outside.
In addition, in order to transmit an infrared signal (same as infrared rays) toward an infrared remote controller (not shown), an infrared light emitting element (hereinafter referred to as “transmitter”) 4 is arranged alongside the receiver 3 on the receiver holding member 3a. Although installed, the present invention does not require installation of the transmission unit 4 and may be removed.

(Display unit)
The front design panel 13 is formed with a design layer formed of a transparent resin material and colored on the back surface with a color capable of transmitting light by painting or printing. In addition, a display device unit 12 is disposed in the center of the indoor unit body 10 in the left-right direction on the front side of the dust box (fixed to the drain pan 7a and the automatic filter cleaning unit 6).
Therefore, when the front design panel 13 covers the front opening, the front surface of the display device unit 12 (the printed sheet on which the display content is printed) is pressed against the back surface of the front design panel 13, and the display content is The projected image is clearly projected on the back surface of the front design panel 13. In the present invention, the display device unit 12 is not necessarily installed, and may be removed.

(Sensor unit)
Further, a sensor unit is provided for detecting the position and body temperature of a person (hereinafter sometimes referred to as a “user”) in the room, the temperature of the room, the amount of dust, and the like, and the infrared sensor 20 constituting the sensor unit is provided with a housing. It is installed in the front center of the body. The infrared sensor 20 swings (rotates in a reciprocating manner) within a predetermined angle range, and detects infrared rays emitted from the outside through a sensor window 13 a formed on the front design panel 13. In the present invention, the installation of the sensor unit is not essential, and may be removed.

(Front up / down wind direction plate)
In FIG. 5, the front vertical wind direction plate 1 has mounting bearings 15a, 15b, 15c for attaching to the main body 10 on a surface (hereinafter referred to as "inner surface") that becomes the inner side of the main body 10 when the air outlet 10c is closed. Is provided. The mounting bearings 15a, 15b, and 15c are rotatably mounted on mounting shafts (not shown) provided on the main body 10, respectively. At this time, a driving shaft (not shown) of driving means for rotating the front vertical wind direction plate 1 is locked to the mounting bearing 15a.
A thin range 1 c is formed at one corner of the inner surface of the front vertical wind direction plate 1. That is, when the front vertical airflow direction plate 1 is rotated, the first range of the front vertical airflow direction plate 1 entering the inside of the infrared light receivable range R of the receiver 3 (in FIG. (A triangle that connects “high”) 1a, a second range of a predetermined width from the edge of the front vertical wind direction plate 1 (in FIG. The third range (substantially L-shaped range connecting “a”) 1b (in FIG. 5B, a triangle connecting “neo-he-ni”, hereinafter referred to as “thin range”) 1c is It is formed thinner than the fourth range 1d excluding the third range 1c.

That is, since the front vertical wind direction plate 1 is surrounded by the second range 1b and the fourth range 1d that are thicker than the thin range 1c, the periphery of the thin range 1c is substantially the same as when the thin range 1c is not formed. Strength (rigidity) and moldability can be ensured. In particular, since the corner portion does not become thin, damage (deformation or loss) of the corner portion is prevented.
When the line connecting the infrared remote controller operated by the user and the receiver 3 intersects the front vertical wind direction plate 1, the infrared signal (same as infrared rays) emitted from the infrared remote controller passes through the thin range 1c. It will not be blocked or significantly weakened. Therefore, the infrared signal is reliably received by the receiving unit 3.

Moreover, although the front up-and-down wind direction board 1 will be in the closed state so that the blower outlet 10c may be plugged up, since the thin range 1c is formed in the inner surface which is not visible to a user at this time, the design property of the indoor unit 100 may be impaired. Absent. Further, since the thin range 1c is partial, parts such as the drain pan 7a disposed behind the front vertical wind direction plate 1 are not seen through and the design of the indoor unit 100 may be impaired. Absent.
In the above, the periphery of the thin range 1c is bordered by a thicker range. However, the present invention is not limited to this, and the second (2) when there is no problem in strength (rigidity) and moldability. The range 1b may also be thin, and the entire first range 1a may be thinned.

6 and 7, the front vertical wind direction plate 1 is rotated and the air blowing direction is directed downward. At this time, although a part of the front up / down wind direction plate 1 enters inside the infrared light receivable range R of the receiving unit 3, the front up / down wind direction plate 1 is formed with the thin range 1c, and thus transmits infrared rays. Is less likely to be disturbed. Therefore, the infrared rays emitted from the infrared remote controller (same as the infrared signal) are not weakened and are not blocked, so that the detection sensitivity of infrared rays and the inability to detect infrared rays are eliminated.
In addition, in FIG. 6, since the receiving part 3 is arrange | positioned at the right side by the front view, the thin range 1c is formed in the right end of the front up-down wind direction board 1 arrange | positioned at the right side. When the receiving unit 3 is arranged on the left side, a thin range 1c is formed at the left end of the front vertical wind direction plate 1 arranged on the left side. Further, when the receiving unit 3 is arranged on each of the left and right sides, or when the receiving unit 3 and the transmitting unit 4 are arranged separately on the left and right, the left end of the front vertical wind direction plate 1 arranged on the left side The thin range 1c is formed on both the right end of the front vertical wind direction plate 1 arranged on the right side.
Furthermore, when the receiving unit 3 is disposed immediately behind the front vertical airflow direction plate 1 (same as the air passage 10b), a position corresponding to the position of the receiving unit 3, for example, the central portion of the front vertical airflow direction plate 1 Thus, the thin-walled range 1c is formed.

  The present invention is an indoor unit of an air conditioner that performs cooling / heating, dehumidification / humidification, etc., since it is difficult to inhibit infrared transmission even if a wind direction plate enters the infrared light receiving range of an infrared light receiving element that receives infrared light. Not limited to this, it can be widely used as various blowers including an infrared light receiving element and a wind direction plate.

1: Front vertical wind direction plate, 1a: first range, 1b: second range, 1c: thin range (third range), 1d: fourth range, 2: bottom vertical wind direction plate, 3: receiver (infrared light receiving element) 3a: receiver holding member, 3b: receiver cover, 4: transmitter, 5: electrical box, 6: automatic filter cleaning unit, 6a: filter, 7: drain pan unit, 7a: drain pan, 8: heat exchange Means, 8a: Heat transfer tube, 8b: Radiation fin, 9: Air blowing means, 10: Main body (indoor unit main body), 10a: Suction port, 10b: Air passage, 10c: Air outlet, 11: Base, 12: Display device Unit: 13: Front design panel, 13a: Sensor window, 14: Housing, 15a: Mounting bearing, 15b: Mounting bearing, 15c: Mounting bearing, 20: Infrared sensor, 100: Indoor unit, R: Infrared light receiving range .

Claims (1)

A main body in which a suction port and an air outlet are formed;
A blowing means for forming an air passage from the suction port to the blowout port;
Heat exchange means disposed in the air path;
An up-and-down wind direction plate that is rotatably installed in the main body and changes a blowing direction of air blown out from the blow-out port;
Infrared light receiving unit that is installed in the main body alongside the air outlet and receives infrared rays;
Have
When the up-and-down wind direction plate rotates, the second range having a predetermined width is excluded from the edge of the up-and-down wind direction plate out of the first range of the up-and-down wind direction plate that enters the infrared light receiving range of the infrared light receiving unit. The indoor unit of an air conditioner, wherein the third range is formed thinner than a range excluding the third range.

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