JP3030219B2 - Air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a temperature sensor and a sensor mounting for mounting the temperature sensor.

[0002]

2. Description of the Related Art An air conditioner provided with a temperature sensor and a sensor mounting member for mounting the sensor is disclosed, for example, in Japanese Utility Model Publication No. 61-44106.
In the air conditioner described in this publication,
The heat exchanger is provided with a support piece that fits into the heat exchanger tube, is detachably attached to the heat exchanger tube, and has a shield plate to prevent the temperature sensor from being affected by the radiant heat of the heat exchanger. I have.

[0003]

In the above-mentioned air conditioner, since it is detachably attached to the heat transfer tube of the heat exchanger,
Although it can be installed at a position away from the electrical box so as to be less susceptible to the heat radiation of the electrical components in the electrical box, since the fixture is installed in the ventilation path, especially immediately before the heat exchanger, However, this fixture had a ventilation resistance. In addition, the shield plate of the fixture shields the air passing through the heat exchanger, resulting in a decrease in the air passing through the heat exchanger, resulting in a decrease in the efficiency of the heat exchanger.

[0004] The present invention provides an air conditioner that is less likely to have a ventilation resistance and that is less likely to reduce the air passing through a heat exchanger.

[0005]

According to a first aspect of the present invention, a heat exchanger is provided in an air passage connecting a suction port and an air outlet provided in a main body. The air conditioner comprises a front heat exchanger located on the front side and a rear heat exchanger located on the rear side, and has a temperature sensor and a sensor fixture for mounting the sensor. The sensor mounting member is attached to a wall surface of an air passage facing the back side heat exchanger.

According to a second aspect of the present invention, there is provided an air conditioner, in which a sensor fitting is fitted on a wall of a ventilation path which is a primary side of a rear side heat exchanger and which faces the rear side heat exchanger. And the sensor mounting member is attached to the fitting portion.

According to a third aspect of the present invention, there is provided an air conditioner, in which a sensor fitting is fitted to a wall of a ventilation path which is a primary side of a rear heat exchanger and faces the rear heat exchanger. And a support for supporting the sensor mounting tool,
The sensor attachment is attached to the fitting portion.

According to a fourth aspect of the present invention, a heat exchanger is disposed in an air passage connecting an inlet and an outlet provided in a main body, and the heat exchanger is provided with a vertical heat exchanger extending in a vertical direction. An oblique heat exchanger inclined obliquely from the upper part of the vertical heat exchanger to the rear side of the main body, and a rear side heat exchanger extending downward from the upper part of the oblique heat exchanger to the lower side of the heat exchanger. In the air conditioner provided with a sensor fitting having a support piece fitted to a heat transfer tube of a heat exchanger, and a temperature sensor attached with the sensor fitting, a ventilation path of the heat exchanger opposed to a rear-side heat exchanger of the heat exchanger is provided. A fitting portion with which the support piece fits is provided at a substantially uppermost portion of the wall surface, and the support piece of the sensor mounting tool is attached to the fitting portion.

[0009]

In the air conditioner according to the first to fourth aspects of the present invention, since the temperature sensor is mounted on the side wall of the ventilation passage by the sensor mounting device, the sensor mounting device is located on a side portion deviated from the center of the ventilation passage. However, this sensor attachment is unlikely to be a ventilation resistance. In addition, since the sensor mounting device is not mounted on the front of the heat exchanger but mounted on the wall of the ventilation path, the resistance of the air flowing to the heat exchanger is lower than that of the sensor mounting device mounted on the heat exchanger. Hateful.

[0010] In the air conditioner according to the second or third invention,
The temperature sensor detects the temperature of the intake air because the sensor mounting is attached to the primary side of the back side heat exchanger.

[0011] In the air conditioner according to the third aspect of the present invention, since the support is provided particularly on the wall surface of the ventilation path, the sensor mount is supported by the support.

[0012] In the air conditioner according to the fourth aspect of the invention, since the fitting portion is provided substantially at the uppermost portion of the ventilation path wall surface,
The mounting position of the sensor mounting can be set at a position distant from the rear part of the heat exchanger, so that the resistance of the air passing through the ventilation path is hardly reduced, and the resistance of the air flowing to the heat exchanger is hardly reduced. In addition, a sensor which can be attached to a conventional heat exchanger can be used.

[0013]

An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 1 denotes an indoor unit (main body) of a separation type air conditioner.
Thus, it is installed on an indoor wall and connected to an outdoor unit installed outdoors by a refrigerant pipe. 2 is a wireless remote controller for controlling the operation of this indoor unit, 2A
Is an operation switch, 3 is an exterior case of the indoor unit, 4 is a horizontally elongated suction port, 5 is an air outlet formed at the lower part of the indoor unit, and 6 is a horizontal blade for controlling the air blowing direction in the vertical direction. .., 7 are vertical blades for controlling the air blowing direction in the left-right direction. The blades 6 and 7 are not shown in FIG.

In FIG. 2, the outer case 3 has a rear panel 8, a front panel 9 attached to the front of the rear panel, and an upper part which is opened and closed by a hinge (not shown). The suction grill 10 is freely supported. Reference numeral 11 denotes an installation plate for installing the indoor unit on an indoor wall.

The heat exchanger 13 disposed in the indoor unit 1 has a vertical heat exchanger (front side heat exchanger) 13A extending substantially in the vertical direction.
And an oblique heat exchanger (front heat exchanger) 13B which is obliquely inclined from the upper part of the vertical heat exchanger to the rear side of the main body, and extends from the upper part of the oblique heat exchanger to the lower side of the rear part. And a three-part heat exchanger 13C. Each of the three heat exchangers includes a plurality of heat transfer fins 13D and a heat transfer tube 13E penetrating the heat transfer fins. Each of the vertical heat exchanger 13A and the oblique heat exchanger 13B uses what is called a slit fin. The rear heat exchanger 13C uses a so-called corrugated fin heat exchanger which is not provided with the cut-and-raised portions and is bent so as to slightly disturb the air flow. The gap size (pitch) between the heat transfer fins is set to about 1.5 mm.

Reference numeral 14 denotes a drain pan for receiving drain from the heat exchanger 13, 15 denotes a drain pan for receiving drain from the heat exchanger on the back surface portion 13C, and 20 denotes a vertical portion.
A blower arranged on the back side of the 3A heat exchanger, for example, a synthetic resin cross flow fan having a diameter of about 70 mm and a length of about 643 mm is used. still,
The heat exchanger 13 and the blower 14 are arranged in a ventilation path connecting the inlet and the outlet.

Reference numeral 16 denotes a synthetic resin pre-filter 17 for removing relatively large dust and the like. An air purifying filter 16 disposed on the secondary side of the filter is a dust filter smaller than that removed by the pre-filter. And remove odors. The air cleaning filter 17 includes a charging filter element and a deodorizing filter element (not shown).

Reference numeral 30 denotes a sensor attachment that can be attached to and detached from the heat transfer tube 13D of the heat exchanger 13.
A support piece 31 that fits into the 3D and a fitting portion (described later);
A shielding plate 32 for shielding radiant heat from the heat exchanger 13 when attached to the heat exchanger, and an attachment portion 34 for a temperature sensor 33 for detecting the temperature of the intake air are formed. Further, the sensor fixture 30 is provided with an opening 35,
When the sensor attachment 30 is attached, the sensor attachment 30 is easily elastically deformed. For this reason, attachment of the sensor attachment 30 is facilitated.

At substantially the uppermost part of the casing 40 for forming the wall surface of the ventilation passage, a fitting portion 45 is provided for inserting the support piece 31 and mounting the fixture 30. The part is formed by a hole. On the left and right sides of the fitting portion, supporters 41 and 42 for supporting the shielding plate 32 of the attachment 30 are provided. In addition, the fitting portion 4
5 is an electrical box 43 arranged on the right side of the main body (see FIG. 1).
At least 10 cm or more (if it is less than this distance, it has been experimentally confirmed that there is a risk of being affected by the heat generated by the electric components 46 in the electrical box). , Electrical box 44
It is provided at a position 17 cm away from.

In the air conditioner thus configured, the temperature sensor 33 is attached to the attachment portion 34 of the sensor attachment 30, and is attached to the casing 40 so that the support piece 31 is fitted into the fitting portion 45. When the sensor attachment 30 is attached, not only is the support piece 31 fitted into the fitting portion 45, but also the shielding plate 32 is supported by the supports 41 and 42, and wobbling and chattering sound due to this wobbling are prevented. I have.

Further, in this air conditioner, since the sensor mounting member is mounted on the side wall of the ventilation passage, the sensor mounting member 30 is located on a side portion deviated from the center of the ventilation passage (in this embodiment, the heat mounting member). This position is the farthest from the rear part of the exchanger, and this position is the position where the ventilation resistance is least likely to occur). Moreover, since the sensor attachment 30 is attached to the wall surface 40 of the ventilation path without being attached to the primary surface of the heat exchanger, the flow to the heat exchanger is higher than that in which the sensor attachment is attached to the heat exchanger. It is hard to be the resistance of air, and it is hard to obstruct the flow of this air. Therefore, according to the present invention,
In the air conditioner, the temperature sensor is unlikely to have a ventilation resistance, and the flow of air is hardly hindered. Further, it is possible to make it difficult to reduce the air passing through the heat exchanger.

In this air conditioner, particularly, the fitting portion 4
5 is provided on the uppermost portion of the wall surface 40 of the ventilation passage, the sensor mounting position can be set at a position farthest from the rear-side heat exchanger, and the ventilation resistance of the air passing through the ventilation passage is less likely to occur. ing.

Further, the position of the sensor mounting member 30 is
Is located at the uppermost position, so that even after the heat exchanger is disposed, a work space for attachment and detachment is secured. For this reason, the attachment / detachment of the sensor attachment is easier than in the case where the sensor attachment is not provided substantially at the top of the wall surface. In addition, the sensor fitting 3 is provided in the suction port of the front panel 9.
0 and the sensor 33 can be brought close to each other, so that the position is easy to touch the suction air, and the temperature of the suction air, that is, the room temperature, is easily detected.

Also, since the fitting portion 45 is 17 cm away from the electric box 43, the electric parts 46 in the electric box
, The possibility that the temperature sensor 33 is heated to a temperature higher than the temperature of the suction air is reduced. Therefore, if this sensor mounting device 30 is used, the temperature sensor 33 can be separated from the electrical box 43, and can be hardly affected by the heat from the electrical components 46 of the electrical box.

In the present embodiment, the fitting portion is provided to attach the sensor fixture. However, the sensor fixture may be attached by a method such as screwing. In addition, when the temperature of the air (blowing air) that has passed through the heat exchanger is detected by the temperature sensor, the sensor must be mounted on the secondary side (downstream side) of the heat exchanger. Further, in the case where a heat exchanger including three parts is provided as in this embodiment, the indoor unit is particularly compact, and the extra space of the compact indoor unit is used. You can do it.

[0026]

In the air conditioner according to the first to fourth aspects of the present invention, since the temperature sensor is mounted on the side wall of the ventilation path by the sensor mounting, the sensor mounting is off the side of the ventilation path from the center. , This sensor fixture is less prone to ventilation resistance. In addition, since the sensor mounting device is not mounted on the front of the heat exchanger but mounted on the wall of the ventilation path, the resistance of the air flowing to the heat exchanger is lower than that of the sensor mounting device mounted on the heat exchanger. Hateful. For this reason, according to the present invention, it is possible to provide an air conditioner in which the sensor mounting member is unlikely to have a ventilation resistance and the air passing through the heat exchanger is hardly reduced.

In the air conditioner according to the second or third invention,
Since the sensor attachment is mounted on the primary side of the back side heat exchanger, the temperature sensor detects the temperature of the intake air, and this temperature sensor can be used as a sensor for detecting the indoor temperature.

In the air conditioner according to the third aspect of the present invention, since the support is provided particularly on the wall of the ventilation path, the sensor mounting is supported by the support, and the sensor mounting wobble and chattering sound due to the wobble. Can be prevented.

[0029] In the air conditioner according to the fourth aspect of the invention, the fitting portion is provided substantially at the uppermost portion of the wall of the ventilation path.
The mounting position of the sensor mounting can be set at a position distant from the rear part of the heat exchanger, so that it is difficult to reduce the resistance of the air flowing through the ventilation path to the air and to the resistance of the air flowing to the heat exchanger. For this reason, according to the present invention, it is possible to provide an air conditioner in which the sensor attachment is less likely to have ventilation resistance and the air passing through the heat exchanger is less likely to be reduced. Moreover, since a sensor mount that can be attached to a conventional heat exchanger can be used, the conventional sensor mount can also be used.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an air conditioner of the present invention.

FIG. 2 is a sectional view showing the air conditioner.

FIG. 3 is a cross-sectional view showing a mounting state of a sensor mounting member of the air conditioner.

FIG. 4 is a cross-sectional view of the sensor mounting device taken along the line III-III shown in FIG.
FIG.

FIG. 5 is a front view of the sensor attachment.

FIG. 6 is a perspective view showing an attached state of the sensor attachment.

FIG. 7 is a front view showing a relationship between the sensor attachment and the electrical box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit (main body) 4 Inlet 5 Outlet 13 Heat exchanger 13A Vertical heat exchanger (Front side heat exchanger) 13B Diagonal heat exchanger (Front side heat exchanger) 13C Rear side heat exchanger 30 Sensor fixture 31 support piece 33 temperature sensor 40 casing (side wall) 41,42 support tool 45 fitting part

Claims (4)

(57) [Claims] 1. A heat exchanger is disposed in a ventilation path connecting an inlet and an outlet provided in a main body, and the heat exchanger is disposed on a front side heat exchanger located on a front side and on a rear side. In the air conditioner comprising a temperature sensor and a sensor mounting member for mounting the sensor, the sensor is provided on a wall surface of a ventilation path facing the rear side heat exchanger. An air conditioner characterized by attaching a fixture. 2. A heat exchanger is disposed in a ventilation path connecting an intake port and an air outlet provided in a main body, and the heat exchanger is disposed on a front side heat exchanger located on a front side and on a rear side. A rear side heat exchanger comprising: a temperature sensor; and a sensor mounting member for mounting the temperature sensor, the air conditioner being a primary side of the rear side heat exchanger, and An air conditioner characterized in that a fitting portion that fits into the sensor mounting member is provided on a wall surface of the ventilation path facing the side heat exchanger, and the sensor mounting member is mounted on the fitting portion. 3. A heat exchanger is disposed in a ventilation path connecting an intake port and an air outlet provided in a main body, and the heat exchanger is disposed on a front side heat exchanger located on a front side and on a rear side. A rear side heat exchanger comprising: a temperature sensor; and a sensor mounting member for mounting the temperature sensor, the air conditioner being a primary side of the rear side heat exchanger, and On the wall surface of the ventilation path facing the side heat exchanger, a fitting portion that fits into the sensor mounting tool and a support tool that supports the sensor mounting tool are provided, and the sensor mounting tool is mounted on the fitting portion. An air conditioner characterized by that: 4. A heat exchanger is disposed in a ventilation path connecting an inlet and an outlet provided in a main body, and the heat exchanger is connected to a vertical heat exchanger extending in a vertical direction. An oblique heat exchanger inclined obliquely from the upper part to the rear side of the main body, and a rear-side heat exchanger extending downward from the upper part of the oblique heat exchanger to the lower side of the heat exchanger. In the air conditioner provided with a sensor mounting member having a support piece fitted with the sensor mounting member and a temperature sensor mounted by the sensor mounting member, the air conditioner includes a ventilation passage facing the heat exchanger on the rear side. An air conditioner, wherein a fitting portion with which the support piece is fitted is provided at an upper portion, and a support piece of the sensor mounting tool is mounted on the fitting portion.