JP2010210131A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling-embedded air conditioner equipped with an outside air taking-in device capable of correctly detecting room temperature without being affected by outside air temperature. <P>SOLUTION: The air conditioner is composed of a body 1 equipped with a blower 4 and a heat exchanger 5 at an air passage connecting an air suction part 2 and an air blowout part 3, a decorative panel 9 equipped with a suction port 7 and a plurality of blowout ports 8 corresponding to the body 1, a take-in port 10 provided between the body 1 and the decorative panel 9 for taking in the outside air, an air suction passage 13a for guiding the taken outside air and sucked air to the air suction part 2, a spacer 13 for taking in the outside air equipped with an air blowout passage 13b which communicates the air blowout part 3 and the blowout ports 8, an electrical equipment part 11 provided for the body 1 or the spacer 13, and a first room temperature sensor 12'. A second room temperature sensor 12 is installed below the take-in port 10 provided for the spacer 13 and on a suction side of the air suction passage 13a to be switched to the first room temperature sensor 12'. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a ceiling-embedded air conditioner equipped with an outside air intake device.

  A conventional ceiling-embedded air conditioner includes an electrical component box 11 provided on the side of a bell mouth 14 that forms an air suction part 2 for sucking room air, as shown in part c of FIG. Alternatively, as shown in FIG. 3, a first room temperature sensor 12 ′ for detecting the room temperature is mounted inside the bell mouth 14, and based on the temperature detected by the first room temperature sensor 12 ′. I try to harmonize with the air.

  1 is a view of a ceiling-embedded air conditioner as viewed from below with the suction grill and air filter removed, and FIG. 3 is a cross-sectional view taken along line AA shown in FIG.

  In recent years, the ceiling-embedded air conditioner sucks room air from the suction port 7 and connects the duct D to take in outside air, mixes the sucked room air and the taken outside air, and heat exchanger 5 The air is conditioned by air exchange from the air outlet 8 and blown out into the room.

  For example, the duct D is configured to introduce outside air into the main body 1 by being connected to the outer body constituting the main body 1 of the air conditioner. In this case, the room air sucked from the suction port 7 is used. There was a problem that it was difficult to mix well with the outside air.

  Alternatively, the duct D is introduced into the main body 1 by being connected to, for example, an external air intake device (spacer) 13 which is an option kit provided between the main body 1 of the air conditioner and the decorative panel 9. In this case, the depth of the ceiling roller that can provide the outside air intake device (spacer) 13 is required, but the room air sucked from the suction port 7 and the duct D Since it is easy to mix the outside air taken in from the main body 1, this type of body comprising the main body 1, the outside air taking-in device (spacer) 13, and the decorative panel 9 is often used.

  However, since the room air sucked from the suction port 7 and the outside air taken in from the duct D are mixed, the first room temperature sensor 12 ′ mounted inside the bell mouth 14 or the electrical component box 11 is used as the outside air. Therefore, it is difficult to accurately detect the room temperature that is not mixed with the first room temperature sensor 12 ′. Therefore, it is difficult to comfortably air-condition the room temperature based on the temperature detected by the first room temperature sensor 12 ′.

  Further, although not shown so that the room temperature can be accurately detected, for example, when the first room temperature sensor 12 ′ is provided on the decorative panel 9, the indoor air sucked from the suction port 7 is supplied from the duct D to the room air. On the other hand, when the decorative panel 9 is opened and closed, the wiring is routed to the first room temperature sensor 12 ', which makes it difficult to open and close, and the wiring length becomes long. Had.

  Alternatively, as shown in FIG. 4, an introduction room c for taking in indoor air is provided in a remote controller b attached to the indoor wall surface a as shown in FIG. And a detection element d for detecting the temperature and / or humidity of the room air, and an air intake duct f for guiding the room air in the introduction room c to the air conditioner e is embedded in the wall surface a of the room. (For example, Japanese Utility Model Publication No. 63-101740).

  However, in this way, when the intake duct f for guiding the room air taken into the introduction chamber c to the air conditioner e is embedded in the wall surface a in the room, the work becomes large and the cost is increased. Had.

Japanese Utility Model Publication No. 63-101740

  Accordingly, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a ceiling-buried device equipped with an outside air intake device so that the room temperature can be accurately detected without being affected by the outside air temperature. It is to provide a built-in air conditioner.

  In order to achieve the above-described object, the present invention has the following features.

An air suction part consisting of a bell mouth is provided at the center of the lower part, a plurality of air blowing parts are provided outside the air suction part, and a blower and a heat exchanger are provided in an air passage connecting the air suction part and the air blowing part. A decorative panel provided with a main body, a suction port corresponding to the air suction portion, and a plurality of air outlets corresponding to the air blowing portion; and a duct connected between the main body and the decorative panel. The intake port for taking in the outside air, the air suction path for guiding the outside air taken in from the intake port and the air sucked in from the suction port to the air suction portion, and the air outlet portion and the outlet port in communication with each other Comprising a spacer for taking in outside air having an air blowing path, an electrical component provided in the main body or the spacer, and a first room temperature sensor,
A second room temperature sensor is provided below the intake port provided in the spacer and on the suction side of the air suction path so as to be switchable with the first room temperature sensor.

In addition, an air suction portion made of a bell mouth is provided at the lower center, and a plurality of air blowing portions are provided outside the air suction portion, respectively, and a blower and a heat exchanger are connected to an air passage connecting the air suction portion and the air blowing portion. A decorative panel provided with a main body provided with a suction port corresponding to the air suction portion, and a plurality of air outlets corresponding to the air blowing portion, and a duct provided between the main body and the decorative panel. An intake port that takes in outside air by connecting the air, an air intake path that guides outside air taken in from the intake port and air sucked in from the intake port to the air suction portion, the air outlet portion, and the outlet port Comprising a spacer for taking in outside air having an air blowing path communicating with the main body or the electrical equipment provided in the spacer and the first room temperature sensor,
A second room temperature sensor is provided in place of the first room temperature sensor on the suction side of the air suction path, which is lower than the intake port provided in the spacer.

  The electric part is provided on the side of the bell mouth, the second room temperature sensor is provided to face the electric part, and the intake port is provided on the side of the second room temperature sensor. It is characterized by becoming.

  In addition, the second room temperature sensor is provided with a wind shield that makes it difficult for the outside air to hit.

  According to the present invention, it is possible to provide a ceiling-embedded air conditioner that includes an outside air intake device and that can accurately detect room temperature without being affected by outside air temperature.

It is the arrow directional view which removed the suction grille and the air filter from the ceiling embedded type air conditioner by this invention, and was seen from the downward direction. It is an enlarged view of the part a shown in FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner according to the present invention. It is sectional drawing of the ceiling embedded type air conditioner by a prior art example.

  EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated in detail as an Example based on an accompanying drawing.

  The ceiling-embedded air conditioner according to the present invention, as shown in FIGS. 1 to 3 as Example 1, is provided with an air suction portion 2 composed of a bell mouth 14 in the lower center of the main body 1 of the air conditioner. An air blowing section 3 is provided outside the air suction section 2, and a blower 4 including a blower fan and a fan motor facing the bell mouth 14 is provided in an air passage connecting the air suction section 2 and the air blowing section 3. A heat exchanger 5 having a drain pan 6 at the lower part is provided.

  At the lower part of the main body 1, a spacer 13 configured to take in outside air toward the air suction part 2 at the center of the lower part by a duct D is provided.

  The spacer 13 includes an air suction path 13a communicating with the air suction section 2 provided in the main body 1, and an air blowing path 13b communicating with the air blowing section 3 provided in the main body 1. The air suction path 13a Each of the air blowing paths 13b is configured to penetrate vertically.

  In the lower part of the spacer 13, the air suction part 7 provided in the center of the lower part of the main body 1 and the air suction path 13 a provided in the spacer 13 are provided, and provided outside the air suction part 2. A decorative panel 9 having an air outlet 8 communicating with an air outlet 3 and an air outlet 13b provided in the spacer 13 is provided. As shown in FIG. 3, the main body 1, the spacer 13, and the decorative panel are provided. 9 is a ceiling-embedded air conditioner.

  Accordingly, the indoor air sucked from the suction port 7 by the blower 4 as indicated by an arrow a shown in FIG. 3 and the outside air taken in by the duct D as indicated by an arrow b shown in FIGS. From the air suction passage 13a provided to the heat exchanger 5 through the blower 4 and sent to the heat exchanger 5 for heat exchange. The room air sucked from 7 and the outside air taken in as fresh air are mixed and then blown into the room from the outlet 8 as conditioned air subjected to heat exchange.

  For example, as shown in FIG. 3, a first room temperature sensor 12 ′ is mounted on the inner side of the bell mouth 14 forming the air suction portion 2, and an electrical component 11 is provided on one side of the bell mouth 14. ing.

  A spacer 13 is provided at the lower part of the bell mouth 14, and as shown in FIGS. 1 and 3, the other side of the bell mouth 14 facing the electrical component 11 provided on one side of the bell mouth 14. The second room temperature sensor 12 is provided on the side wall on the suction side of the air suction path 13a for sucking room air provided in the spacer 13.

  In the vicinity of the corners of the spacer 13 on both sides of the second room temperature sensor 12 and outside the second room temperature sensor 12, which is closer to the blower 4 than the second room temperature sensor 12, outside air is passed. An intake port 10 to which a duct D for taking in is connected is provided.

  Thereby, since the 2nd room temperature sensor 12 becomes a structure provided in the position where the external air (flow) taken in from the duct D by the air blower 4 is difficult to touch directly, the room air sucked in from the suction inlet 7 Even if there is a temperature difference between the outside air taken in from the duct D, the room temperature can be detected without being affected by the outside air having this temperature difference.

  A first room temperature sensor 12 'is mounted inside the bell mouth 14 to harmonize the air based on the detected room temperature. However, the temperature of the room air mixed with the taken outside air can be accurately detected. Therefore, the second room temperature sensor 12 is provided in the spacer 13 so as to be switchable to the first room temperature sensor 12 ′ or in place of the first room temperature sensor 12 ′.

  The second room temperature sensor 12 provided so as to be switchable with the first room temperature sensor 12 ′ is an optional component, for example, between the main body 1 and the decorative panel 9 while leaving the first room temperature sensor 12 ′. When the spacer 13 is provided and the duct D is connected, the second room temperature sensor 12 is provided on the spacer 13 by switching the wiring.

  In this case, the wiring connected to the first room temperature sensor 12 ′ may be removed and connected to the second room temperature sensor 12 so as to be physically switched. The wiring (energization) connected to the room temperature sensor 12 ′ may be turned off, and the wiring (energization) connected to the second room temperature sensor 12 may be electrically switched.

  When the first room temperature sensor 12 ′ and the second room temperature sensor 12 can be electrically switched, for example, the wiring (energization) of the first room temperature sensor 12 ′ is turned ON and the duct D is used. You may enable it to detect the temperature of the air which the outside air taken in into the air suction path 13a and the room air sucked into the air suction path 13a from the suction inlet 7 are mixed, or the second room temperature sensor 12 The wiring (energization) may be turned on so that the temperature of the indoor air sucked into the air suction passage 13a can be detected.

  When the room is air-conditioned to the target temperature, the compressor and the blower 4 (not shown) are controlled by a control unit (not shown) based on the room temperature detected by the second room temperature sensor 12. Since the mixed air with the air is configured to exchange heat with the heat exchanger 5, the temperature of the air mixed with the outside air and the room air is detected by the first room temperature sensor 12 ′, and a compressor (not shown) Optimal heat exchange can be performed by controlling the blower 4 by a control unit (not shown), and since the room temperature with respect to the target temperature is managed by the second room temperature sensor 12, optimal control can be performed.

  Further, instead of providing the second room temperature sensor 12 as shown in part a of FIG. 1, the first room temperature sensor 12 ′ is removed, and the removed first room temperature sensor 12 ′ is replaced with part a of FIG. As a dedicated sensor for detecting the room temperature in the spacer 13 shown in part a of FIG. 1 with the first room temperature sensor 12 ′ removed, the spacer 13 may be provided. A second room temperature sensor 12 may be provided.

  As shown in FIG. 3, the second room temperature sensor 12 provided in the spacer 13 is a lower part than the intake port 10 for taking in outside air provided in the spacer 13. It arrange | positions at the side wall by the side of the suction | inhalation of the path | route 13a.

  For this reason, when the indoor air is sucked in from the suction port 7 by the blower 4 and the outside air is taken in from the intake port 10, the intake port 10 is closer to the blower 4 than the second room temperature sensor 12. Since it becomes the arrangement | positioning structure, there is no possibility that the 2nd room temperature sensor 12 may detect the temperature of the external air taken in from the intake port 10. FIG.

  Thereby, since the 2nd room temperature sensor 12 can detect room temperature correctly, it does not receive to the influence of outside temperature, and it does not have that an outside temperature exerts a bad influence on indoor air conditioning.

  Further, since the second room temperature sensor 12 is provided on the suction side of the air suction path 13a provided in the spacer 13, for example, the wiring length is longer than that provided in the decorative panel 9 that can be opened and closed. Can be shortened.

  As shown in FIGS. 1 and 2, the second room temperature sensor 12 has a configuration in which a wind shield 12 a is provided to make it difficult for a part of the outside air taken in from the intake 10 to directly hit. Yes.

  By providing the wind shield 12a that makes it difficult for outside air to hit the second room temperature sensor 12, a part of the outside airflow taken in from the intake 10 as indicated by the arrow b shown in FIGS. The room temperature sensor 12 can be shielded from being touched directly.

  As described above, with the configuration according to the present invention, the outside air taken in from the duct D by the blower 4 is transferred to the second room temperature sensor 12 provided on the side wall on the suction side of the air suction path 13a. Since there is no fear of direct contact, the temperature (room temperature) of the indoor air sucked from the suction port 7 can be accurately detected by the second room temperature sensor 12.

  Therefore, since the room temperature can be accurately detected without being affected by the outside air temperature, it is possible to provide a ceiling-embedded air conditioner that can realize comfortable indoor air conditioning based on the accurately detected room temperature. .

DESCRIPTION OF SYMBOLS 1 Body of air conditioner 2 Air suction part 3 Air blowing part 4 Blower 5 Heat exchanger 6 Drain pan 7 Suction port 8 Air outlet 9 Cosmetic panel D Duct 10 Intake port 11 Electrical part 12 2nd room temperature sensor 12 '1st Room temperature sensor 12a Wind shield 13 Spacer 13a Air suction path 13b Air outlet path 14 Bell mouth

Claims (4)

An air suction part consisting of a bell mouth is provided at the center of the lower part, a plurality of air blowing parts are provided outside the air suction part, and a blower and a heat exchanger are provided in an air passage connecting the air suction part and the air blowing part. A decorative panel provided with a main body, a suction port corresponding to the air suction portion, and a plurality of air outlets corresponding to the air blowing portion; and a duct connected between the main body and the decorative panel. The intake port for taking in the outside air, the air suction path for guiding the outside air taken in from the intake port and the air sucked in from the suction port to the air suction portion, and the air outlet portion and the outlet port in communication with each other Comprising a spacer for taking in outside air having an air blowing path, an electrical component provided in the main body or the spacer, and a first room temperature sensor,
The ceiling is characterized in that a second room temperature sensor is provided on the suction side of the air suction passage so as to be switchable with the first room temperature sensor, lower than the intake port provided in the spacer. Embedded air conditioner. An air suction part consisting of a bell mouth is provided at the center of the lower part, a plurality of air blowing parts are provided outside the air suction part, and a blower and a heat exchanger are provided in an air passage connecting the air suction part and the air blowing part. A decorative panel provided with a main body, a suction port corresponding to the air suction portion, and a plurality of air outlets corresponding to the air blowing portion; and a duct connected between the main body and the decorative panel. The intake port for taking in the outside air, the air suction path for guiding the outside air taken in from the intake port and the air sucked in from the suction port to the air suction portion, and the air outlet portion and the outlet port in communication with each other Comprising a spacer for taking in outside air having an air blowing path, an electrical component provided in the main body or the spacer, and a first room temperature sensor,
A ceiling-embedded structure characterized in that a second room temperature sensor is provided in place of the first room temperature sensor on the suction side of the air suction path, which is lower than the intake port provided in the spacer. Built-in air conditioner.   The electric part is provided on the side of the bell mouth, the second room temperature sensor is provided to face the electric part, and the intake port is provided on the side of the second room temperature sensor. The ceiling-embedded air conditioner according to claim 1 or 2, wherein the air conditioner is embedded in a ceiling.   The ceiling-embedded air conditioner according to any one of claims 1 to 3, wherein a wind shield that prevents the outside air from coming into contact with the second room temperature sensor is provided.

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