JP2002168502A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air conditioner wherein a temperature sensor has room temperature detection accuracy with excellent assembling workability, and includes a sensor mounting structure capable of securely holding the temperature sensor. SOLUTION: A temperature sensor 13 is provided on one side of an air filter 12 oppositely to a heat exchanger 5 near a suction grill 2. Hereby, the temperature sensor 13 is separated from the heat exchanger 5 to form a disposition more resembling a dwelling space and hence eliminate the influence of radiation heat from the heat exchanger 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner installed in a corner of a living room for cooling or heating.

[0002]

2. Description of the Related Art A conventional air conditioner of this type is shown in FIGS. FIG. 6 is a perspective view showing a state where the air conditioner main body is installed in a living room, and FIG. 7 is a longitudinal sectional view of a central portion of the air conditioner main body.

The air conditioner body 51 is closely attached to a ceiling S in a living room and corners of walls W1 and W2 in two directions, has a suction grill 52 on a lower surface, and blows out to an arc-shaped side portion. It has a mouth 53. 54 is a cross flow fan, 55 is a heat exchanger, and 56 is a water tray.
When the cross flow fan 54 is rotated by a driving device (not shown), air is sucked from the suction grille 52, heat is exchanged via a heat exchanger 55 provided above a water receiving tray 56, and an arc-shaped outlet is provided. It flows to 53, and air is blown.

[0006] 57 is a rectifying plate provided below the heat exchanger 55, 58 is an internal connection pipe, 59 is a wind direction changing device, 6
0 is a power box containing electrical components, 61 is a suction grill 52
And an air filter provided between the water receiver 56 and the water tray 56.
The air filter 61 has a filter guide 6 at both left and right ends.
2 and is held in position. On one side of the heat guide 55 of the filter guide 62 on one side, a sensor insertion portion 63 opened in a slit shape in the lateral direction is provided, and a temperature sensor 64 for detecting the temperature of the living room is provided on the sensor insertion portion 63. Have been.

[0005]

However, in the above-described conventional apparatus configuration, the temperature sensor 64 is provided near the heat exchanger 55, so that there is no problem in a normal operation state, but the air is blown to an ultra-low wind. If the temperature sensor 64 is controlled to stop the cross flow fan 54 when the temperature controller operates, the temperature sensor 64 is affected by the radiant heat of the heat exchanger 55, and the accuracy of detecting the temperature in the living room is reduced. was there.

Further, since the mounting position of the temperature sensor 64 is distant from the power supply box 60, it is necessary to route the lead wire of the temperature sensor 64 around the air filter 61, and a long lead wire is required. In addition, the assembly workability was not good.

Further, since the mounting structure of the temperature sensor 64 is merely inserted into the sensor insertion portion 63 opened in a slit shape, if a stress is applied to the tip end by mistake,
There is a problem that the temperature sensor 64 falls off.

An object of the present invention is to provide an air conditioner having a sensor mounting structure which has high accuracy of detecting a room temperature of a temperature sensor, has good assembling workability, and can securely hold the temperature sensor. With the goal.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a temperature sensor located below an air filter and near the inside of a suction grill, thereby isolating the temperature sensor from a heat exchanger and further increasing the living room space. The arrangement is close to

That is, according to the first aspect of the present invention, the temperature is controlled by sending the air sucked from the suction grill on the lower surface to the heat exchanger through the air filter, which is attached closely to the corners of the wall in the two directions in the living room. And in the air conditioner blowing out from the front outlet in the direction along the wall, a temperature sensor for detecting the temperature in the living room,
It is provided on one side of the air filter opposite to the heat exchanger and close to the suction grille, and separates the temperature sensor from the heat exchanger and can be arranged closer to the living room space, so that the temperature in the living room can be reduced. It is possible to detect with high accuracy.

According to a second aspect of the present invention, in the air conditioner according to the first aspect, the temperature sensor is installed at a lower portion of a power supply box that stores an electrical component from which a lead wire of the temperature sensor is led, A cover that covers the temperature sensor and the power supply box and has an air circulation hole that opens in the vicinity of the temperature sensor. The lead wire length is short, so that the temperature sensor can be easily assembled. In addition, the cover can prevent touching of the heat-sensitive portion of the temperature sensor, and can secure an insulating structure.

According to a third aspect of the present invention, in the air conditioner according to the second aspect, the temperature sensor is provided with a plurality of lower opening grooves in which a lead wire following a heat-sensitive portion is inserted, and the lower opening is disposed opposite to the temperature sensor. It has a supporting portion for supporting the lead wire extended over the groove from below, and is held and fixed to a sensor holder attached to the power supply box, so that the temperature sensor can be held well and firmly.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state in which the main body of the air conditioner according to one embodiment of the present invention is installed in a living room, and FIG. 2 is a longitudinal sectional view of a central portion of the air conditioner main body.

Reference numeral 1 denotes an air conditioner main body, which is closely attached to a ceiling S in a living room and corners of walls W1 and W2 in two directions. The air conditioner main body 1 has a substantially fan-shaped horizontal cross section, has a suction grill 2 on a lower surface, and has an outlet 3 on an arc-shaped side portion. Numeral 4 denotes a cross flow fan for blowing air, numeral 5 a heat exchanger for exchanging heat between indoor air and refrigerant, and numeral 6 a water tray provided below the heat exchanger 5 for treating condensed water. When the cross flow fan 4 is rotated by a driving device (not shown), air is sucked from the suction port 7 of the suction grill 2, and this air is
, Heat is exchanged through the outlet, flows to the arc-shaped outlet 3, and is blown.

Reference numeral 8 denotes a rectifying plate provided below the inclined heat exchanger 5, 9 denotes an internal connection pipe, 10 denotes a wind direction changing device provided at the outlet 3, and 11 houses electric components. A power supply box 12 is an air filter provided between the suction grill and the water receiving tray 6. The power supply box 11 is provided at a position corresponding to substantially the center of the suction grill 2,
The air filter 12 is guided between filter guides (not shown) on both sides and inserted between the power supply box 11 and the rectifying plate 8.

A temperature sensor 13 for detecting the temperature of the living room is held by a sensor holder 14 on the side of the power supply box 11, and covers the power supply box 11, the connection pipe 9, and the temperature sensor 13. A decorative cover 15 is provided.
A plurality of slits 16 are provided on the lower surface and the side surface of the decorative cover 15 near the temperature sensor 13, and the temperature sensor 13 is close to the suction grill 7 through these slits 16.

This will be described in more detail. FIG. 3 is a perspective view of the suction grill 2 and the air filter 12 removed from the air conditioner main body 1 and viewed from below, FIG. 4 is an exploded perspective view of the power supply box 11 and the decorative cover 15, and FIG. 3 is an enlarged view of a portion where the temperature sensor 13 is installed.

The sensor holder 14 has a substantially square cylindrical shape and is attached to the lower part of the side surface of the power supply box 11. The sensor insertion grooves 17, 18 opened downward are opposed to each other, and between the sensor insertion grooves 17, 18. , Horizontal sensor support pieces 19 are arranged. Insertion grooves 17 and 18 are temperature sensor 1
The width of the support piece 19 is slightly smaller than the width of the lead wire 20 and the lower end opening following the insertion grooves 17 and 18 is located on both sides.
Of the lead wire 20 with a width slightly wider than the lead wire 20.

The temperature sensor 13 is mounted on the sensor holder 14 in such a state that the heat-sensitive portion 21 at the tip is exposed outside the holder, and the lead wire 20 is inserted into the insertion grooves 17 and 18 and supported by the support piece 19 from below. Is held. That is, the temperature sensor 13 is guided by the insertion grooves 17 and 18 and
It is fixed in the form held at 9.

Therefore, when air is blown by the cross flow fan 4, a part of the room air sucked from the suction grille 7 flows through the slit 16 in the decorative cover 15 and comes into contact with the heat sensitive portion 21 of the temperature sensor 13, and as a result, ,
The room temperature is detected.

At this time, as described above, since the temperature sensor 13 is provided inside the vicinity of the suction grille 7 and the distance from the heat exchanger 5 is increased, the air blowing state may be an ultra-low wind or the temperature controller may be used. When the control is performed to stop the cross flow fan 4 during the operation, the temperature in the living room can be accurately detected without being affected by the radiant heat of the heat exchanger 5.

Further, since the temperature sensor 13 is provided in the decorative cover 15 so as to correspond to the slit 16, not only the decorative cover 15 can ensure the double insulation structure of the temperature sensor 13, but also the power supply box by the decorative cover 15. 1
Exposure of 1 and the connection pipe 9 can also be avoided, and the appearance is improved as compared with the conventional machine.

Further, since the temperature sensor 13 is provided on the side of the power supply box 11, the length of the lead wire 20 of the temperature sensor 13 is short, and a long lead wire is not required. Workability is also improved. Moreover, since the insertion grooves 17 and 18 and the support piece 19 are provided in the sensor holder 14 as described above, not only can the attachment state of the temperature sensor 13 be maintained in a good condition, but also the stress is applied to the heat sensitive part 21 by mistake. However, since the support pieces 19 prevent the falling off, the temperature sensor 13 does not easily fall off, and the fixing strength can be secured.

If there is not enough space on the side of the power supply box 11, the assembly workability is somewhat inferior to the above-described configuration. Similar effects can be obtained.

[0025]

As described above, according to the present invention, the temperature sensor is disposed on one side of the air filter opposite to the heat exchanger and close to the suction grill, so that the temperature sensor can exchange heat. Because it can be placed farther from the heat sink and closer to the living room space, even if the air blowing condition is super breeze or the control is to stop the air blowing when the temperature controller operates, it will not be affected by the radiant heat of the heat exchanger. Thus, the accuracy of detecting the temperature in the living room can be improved as compared with the conventional machine.

Further, such a temperature sensor is installed at a lower portion of a power supply box in which electric components from which lead wires are led out are provided, and has an air circulation hole facing the temperature sensor, and covers the temperature sensor and the power supply box. By using a cover, it is possible to use only a short lead wire, and it is possible to easily assemble the temperature sensor. The structure can be secured.

Further, by holding and fixing such a temperature sensor to a sensor holder attached to a power supply box having a plurality of lower opening grooves corresponding to the lead wires and a supporting portion, the holding state is improved. In addition to stabilizing, even when stress is applied to the heat sensitive portion at the tip by mistake, falling off can be prevented.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a main body of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a central portion of the air conditioner main body.

FIG. 3 is a perspective view showing a state in which some parts are removed from the air conditioner main body from below.

FIG. 4 is a partially exploded perspective view of a main part of the air conditioner main body.

FIG. 5 is an enlarged perspective view of a main part of the air conditioner main body.

FIG. 6 is an external perspective view of a main body of a conventional air conditioner.

FIG. 7 is a longitudinal sectional view of a central portion of the air conditioner main body shown in FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Air conditioner main body 2 Suction grille 3 Outlet 4 Cross flow fan 5 Heat exchanger 11 Power supply box 12 Air filter 13 Temperature sensor 14 Sensor holder 15 Makeup cover 16 Slit (air circulation hole) 17, 18 Insertion groove (lower opening groove) ) 19 Supporting piece (supporting part) 20 Lead wire 21 Heat sensitive part W1, W2 Wall

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kenji Shirai 1006 Kazuma Kadoma, Kadoma-shi, Osaka Matsushita Electric Industrial Co., Ltd. F-term (reference) 3L061 BA02

Claims (3)

[Claims] 1. A two-way wall in a living room, which is closely attached to a corner of a wall, and in which air sucked from a suction grill on a lower surface is sent to a heat exchanger through an air filter to regulate temperature, and a front surface in a direction along the wall is provided. An air conditioner that blows out from an outlet of the air conditioner, wherein a temperature sensor for detecting a temperature in the living room is provided on one side of an air filter that is opposite to the heat exchanger and is close to the suction grill. Air conditioner. 2. A temperature sensor is provided at a lower portion of a power supply box containing an electrical component from which a lead wire of the temperature sensor is led. The temperature sensor and the power supply box have an air circulation hole opened near the temperature sensor. 2. The air conditioner according to claim 1, further comprising a cover that covers the air conditioner. 3. The temperature sensor has a plurality of lower opening grooves into which a lead wire following the heat-sensitive portion is inserted, and has a support portion for supporting the lead wire extending over the lower opening groove from below. The air conditioner according to claim 2, wherein the air conditioner is held and fixed to a sensor holder attached to the power supply box.