JP2005003221A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of improving the flow of the air passing through a heat exchanger, and comprising a temperature sensor and/or a humidity sensor positioned to detect a correct value. <P>SOLUTION: In this air conditioner 3 wherein a main body is provided with a suction port 5a and a blowout port 5b, the heat exchanger 8 and an air blower 9 are mounted on a ventilation flue 6 for communicating the suction port 5a and the blowout port 5b, and a suction face of the heat exchanger 8 is provided with a filter frame 14 for accommodating an air cleaning filter 13, and a sensor fixing tool 18 for mounting the temperature sensor 21, the sensor fixing tool 18 is mounted at a lower part of the filter frame 14, the filter frame 14 has an opening part for mounting and demounting the air cleaning filter 13 at its lower end part, and the filter frame 14 is mounted in a state that the mounting and demounting direction of the air cleaning filter 13 is located at an upper part of the sensor fixing tool 18. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner installed indoors, and more particularly to a sensor disposed in an indoor unit.
[0002]
[Prior art]
Conventionally, in an indoor unit of an air conditioner installed on an indoor wall or the like, a heat exchanger and a blower are provided, and the air sucked from the suction port by the blower is heat-exchanged by the heat exchanger from the blower outlet. A type of air conditioner that blows out is known (for example, see Patent Document 1).
[0003]
In this type of air conditioner, generally, a prefilter, a temperature sensor, a humidity sensor, and an air purification filter are provided on the windward side of the heat exchanger, and the temperature sensor and the humidity sensor are attached to the surface of the air purification filter, and the room temperature and The room humidity is detected.
[0004]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-230601
[Problems to be solved by the invention]
However, when the sensors are attached to the surface of the air cleaning filter, a part of the ventilation path is doubly blocked by the air cleaning filter and the sensors, so that only a part of the air flow becomes worse and the air flow is reduced. There was a problem that unevenness occurred and the heat exchange efficiency was affected.
[0006]
Further, when the sensors are arranged on the leeward side of the air purification filter, there is a problem that the amount of air hitting the sensors with the air purification filter is reduced and the indoor temperature and / or humidity cannot be accurately detected.
[0007]
Accordingly, an object of the present invention is to solve the problems of the conventional techniques described above, improve the flow of air passing through the heat exchanger, and / or arrange a temperature sensor to detect a more accurate value and / or It is providing the air conditioner provided with the humidity sensor.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that the main body has a suction port and a blower outlet, and a heat exchanger and a blower are provided in a ventilation path communicating the suction port and the blower port, In an air conditioner in which a filter frame that houses an air purifying filter and a sensor fixture that supports a sensor are attached to a suction surface of an exchanger, the sensor fixture is disposed below the filter frame, and the filter frame has a lower end portion. An opening for inserting / removing the air purifying filter is provided on the filter frame, and the filter frame is provided such that the inserting / removing direction of the air purifying filter is above the sensor fixture.
[0009]
According to a second aspect of the present invention, in the air conditioner according to the first aspect, the sensor fixture supports a temperature sensor and / or a humidity sensor.
[0010]
According to a third aspect of the present invention, in the air conditioner according to the first or second aspect, the heat exchanger is provided with a front surface obliquely upward.
[0011]
According to a fourth aspect of the present invention, in the air conditioner according to any one of the first to third aspects, a pre-filter is provided at the suction port.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a wall-embedded air conditioner according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of FIG.
[0013]
In FIG. 1, reference numeral 1 denotes an indoor wall plate. An attachment opening 2 is formed at a predetermined position of the wall plate 1, and a predetermined air conditioner 3 is attached to an inner portion of the attachment opening 2.
[0014]
1 and 2, the air conditioner 3 includes a housing 3A and a front grille 4. The front grille 4 has a grill frame 4a and a grill portion 4b and is provided on the front surface of the housing 3A. The grill frame 4a is fixed to the housing 3A, and the grill portion 4b is detachably attached to the grill frame 4a. The front grill 4 is formed with an inlet 5a and an outlet 5b, and an air passage 6 connecting the inlet 5a and the outlet 5b is formed in the housing 3A. A pre-filter 7 that covers the suction port 5a is disposed inside the front grill 4 and is detachably attached to the front surface of the housing 3A.
[0015]
A blower 9 having a heat exchanger 8 and a cross flow fan is disposed in the ventilation path 6. The heat exchanger 8 has a substantially upper half that is inclined frontward and a lower half that is vertically formed in a substantially square shape. The heat exchanger 8 is provided with auxiliary pipes 10a and 10b extending upward from the right end of the heat exchanger 8, and an air conditioner (not shown) is connected via the auxiliary pipes 10a and 10b and the inter-unit pipe (not shown). An indoor unit 3 is connected to an outdoor unit (not shown) (containing a refrigerant compressor, a four-way valve, an outdoor heat exchanger, and a decompression device). And a refrigerant | coolant is conduct | electrically_connected from an outdoor unit.
[0016]
The air sucked from the suction port 5a of the front grill 4 is dust-removed by the pre-filter 7 and then reaches the heat exchanger 8, where the air is conditioned and formed at the lower part of the front grill 4 via the blower 9. The blowout port 5b is blown into the room to be conditioned.
[0017]
A drain pan 11 is disposed below the heat exchanger 8, and drain generated on the surface of the heat exchanger 8 is dropped into the drain pan 11.
[0018]
On the right side of the heat exchanger 8, there is disposed an electrical box 12 extending almost fully in the longitudinal direction of the housing 3A. A control board (not shown) is disposed in the electrical box 12, and a temperature sensor / humidity sensor connection line, a fan 9 motor control line, and a solenoid valve attached to the heat exchanger 8 are provided on the control board. Control lines and the like are connected.
[0019]
FIG. 3 is a front view of the air conditioner with the front grill removed, and FIG. 4 is an enlarged view of the vicinity of the sensor fixture.
[0020]
In FIG. 3, a heat exchanger 8 is exposed on the front surface of the air conditioner 3, and an air purifying filter 13 (hereinafter simply referred to as an air purifying filter) is disposed on the upper half 8a of the heat exchanger 8 on the air suction side. Are attached to the left and right, respectively. These filter frames 14, 14 are formed by a front plate 14a and a rear plate 14b formed in a lattice shape on the front and rear sides, and projecting pieces 15 projecting rearward on the left and right ends of the rear plate 14b as shown in FIG. , 15 are formed. These projecting pieces 15 and 15 are elongated rearward, and the tips of the projecting pieces 15 are inserted between fins provided in the heat exchanger 4, and the air suction surface of the heat exchanger 4 and the rear plate of the filter frame 14. The inner side of 14b is fixed in parallel with a distance S (see FIG. 1). An insertion / removal opening 16 is formed at the lower end of the filter frame 14 so that the air purification filter 13 can be inserted / removed. A handle 17 is formed at the lower edge of the air purifying filter 13, and the air purifying filter 13 can be easily stored by inserting the air purifying filter 13 from the insertion / removal opening 16 with the handle 17. When the emptying filter 13 is stored, it is temporarily fixed so that it does not slide downward. When the emptying filter 13 is removed, the temporary fixing is easily removed.
[0021]
Further, a sensor fixture 18 is provided at the lower part of the upper half 8a on the air suction side of the heat exchanger 8. Inside the sensor fixture 18, a temperature sensor 21 for detecting the temperature of the suction air and a humidity are provided. A humidity sensor 22 to be detected is attached. The height T of the sensor fixture 18 is smaller than the distance S between the inside of the rear plate 14b of the filter frame 14 and the suction surface of the heat exchanger 4, so that it does not get in the way when the emptying filter 13 is inserted and removed. It has become. Moreover, the lower half 8a lower part of the heat exchanger 8 is located almost at the center of the ventilation path 6 (see FIG. 1) and is the place where the air volume is the largest, and the indoor air sucked from the suction port 5a is converted into the sensors 21, 22 hits more.
[0022]
As described above, since the sensors 21 and 22 are provided at a position where the air flow rate of the heat exchanger 8 is large, the detection value of the sensor can be detected more accurately, and the filter frame 14 is separated from the suction surface of the heat exchanger 8. Therefore, even if a low-level component such as the sensor fixture 18 is in the insertion / removal direction of the air purification filter 13, it can be easily inserted / removed without being obstructed. Thereby, the exchange work of the air purification filter 13 can be performed easily.
[0023]
As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this, A various change is possible.
[0024]
Although the wall-embedded air conditioner 3 is described in the present embodiment, a wall-hanging air conditioner may be used.
[0025]
Moreover, in this embodiment, although the suction surface of the heat exchanger 8 and the rear surface of the filter frame 14 are attached in parallel, the distance from the suction surface of the heat exchanger 8 is lower in the lower part than in the upper part of the filter frame 14. You may make it attach at an angle so that it may become large. Thereby, the insertion / removal direction of the air purification filter 13 comes away from the heat exchanger 8, and the sensor fixture 18 does not get in the way when the air purification filter 13 is inserted / removed.
[0026]
【The invention's effect】
As described above, the air conditioner of the present invention has a filter frame for housing the air purifying filter attached away from the suction surface of the heat exchanger, and an opening for inserting and removing the air purifying filter at the lower end. Therefore, the parts (sensor fixtures) provided below the same suction surface do not get in the way of insertion / removal, and the air purifying filter can be easily replaced.
[0027]
Moreover, since the sensors are provided at a position where the air flow rate of the heat exchanger is large, the detection value of the sensor can be detected more accurately.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a wall-embedded air conditioner according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the wall-embedded air conditioner of FIG.
FIG. 3 is a front view of the wall-embedded air conditioner showing a state where the front grill of FIG. 1 is removed.
4 is an enlarged view of a main part showing the vicinity of the sensor in FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 3 Air conditioner 3A Case 4 Front grille 4a Grill frame 5a Suction port 5b Air outlet 6 Ventilation path 7 Prefilter 8 Heat exchanger 8a Heat exchanger upper half 9 Blower 13 Air purifying filter 14 Filter frame 14b After filter frame Plate 15 Protruding piece 16 Insertion / removal opening 18 Sensor fixture 21 Temperature sensor 22 Humidity sensor T Height of sensor fixture S Distance between the suction surface of the heat exchanger and the rear surface of the filter frame

Claims (4)

The main body has a suction port and a blower outlet, and a filter frame and a sensor for storing an air purifying filter on the suction surface of the heat exchanger are provided with a heat exchanger and a blower in a ventilation path communicating with the suction port and the blower outlet. In an air conditioner fitted with a supporting sensor fixture,
The sensor fixture is disposed below the filter frame, and the filter frame is provided with an opening for inserting and removing the air purifying filter at the lower end so that the insertion / removal direction of the air purifying filter is above the sensor fixture. An air conditioner provided with the filter frame. The air conditioner according to claim 1, wherein the sensor fixture supports a temperature sensor and / or a humidity sensor. The air conditioner according to claim 1 or 2, wherein the heat exchanger is provided with a front surface obliquely upward. The air conditioner according to any one of claims 1 to 3, wherein a pre-filter is provided at the suction port.

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