JP4426257B2 - Built-in air conditioner and air conditioning system - Google Patents

Description

  The present invention relates to a built-in air conditioner and an air conditioning system that are installed on a ceiling portion of a building, include a heat exchanger and a fan inside, and guide and blow out the heat-exchanged air to a room to be conditioned through a blowout duct.

In general, a built-in type air conditioner that is installed in a ceiling space of a building and has a blowout duct extended to an unit body that accommodates a heat exchanger and a fan and an electrical box is known. In such a built-in type air conditioner, the air exchanged in the unit main body can be guided to an appropriate position in the room through the blowout duct and blown into the room, so that the optimum air can be obtained without impairing the aesthetics of the room. Harmonization can be realized (see, for example, Patent Document 1).
JP 2000-249364 A

  When this type of built-in air conditioner is installed in a narrow ceiling space such as a business hotel, the installation location is restricted depending on the site conditions. For example, in a single room, it is common to have a narrow entrance passage, a bathroom arranged on the side of the entrance passage, and a bedroom (room) communicating in the back of the entrance passage. The unit main body is installed in the ceiling of the entrance passage, and the suction grill and the blowout grill face the bedroom.

  However, in the conventional configuration, there is a problem that, for example, a suction sound from the suction grill becomes a noise in a bedroom where silence is required.

  Accordingly, an object of the present invention is to provide a built-in type air conditioner and an air conditioning system that can solve the problems of the conventional techniques described above and can reduce noise in a living room.

The present invention is a built-in air conditioner equipped with a unit body containing a heat exchanger and a fan, which is installed on the ceiling of a building and blows out air conditioned by sucking room air into the conditioned room. The conditioned room includes an entrance passage, a bathroom disposed on the side of the entrance passage, and a living room communicating with the entrance passage, and each ceiling portion of the bathroom and the entrance passage communicates with the back of the ceiling, The unit body is installed on the ceiling portion of the entrance passage, and the suction opening of the unit passage is formed in the ceiling portion of the entrance passage by opening the suction port of the unit body in the back of the ceiling, and the suction port. The room air is sucked into the unit main body through.

  In this case, the ceiling part of the building may be a falling ceiling, the inlet of the unit body may be located on the horizontal surface of the ceiling, and the air outlet of the unit body may be located on the vertical surface of the ceiling.

Further, the suction grill may be formed in a ceiling near the entrance of the entrance passage .

  In this case, it is good also as a structure which enables the service inspection of the said connection part from the inspection port of the ceiling part of this bathroom toward the said bathroom side the piping connection part of the said unit main body.

  Furthermore, it is good also as a structure which attaches an electrical equipment box to the side surface of the said unit main body, and enables the service inspection of the said electrical equipment box from the said suction grill.

  Furthermore, it is good also as a structure which attaches an air filter to the suction inlet of the said unit main body, and enables the service inspection of the said air filter from the said suction grill.

  In this case, the air filter may be configured to be freely drawn out toward the suction grille.

  Moreover, it is good also as a structure provided with the means to introduce external air into the said ceiling back space.

  Furthermore, it is good also as a structure which installs the solenoid valve which controls the refrigerant | coolant inflow amount to the said unit main body in the ceiling part of the corridor which went out of the said entrance channel | path.

The present invention includes a built-in type air conditioner that is installed on the ceiling of a building and has a unit main body that houses a heat exchanger and a fan, and sucks room air and blows out air-conditioned air to the conditioned room The conditioned room includes an entrance passage, a bathroom disposed on the side of the entrance passage, and a living room communicating with the entrance passage, and each ceiling portion of the bathroom and the entrance passage communicates with the back of the ceiling. And installing the unit main body in the ceiling portion of the entrance passage and using the back space of the ceiling as a part of the suction path to form a suction grill, a ceiling space, and a ceiling formed in the ceiling portion of the entrance passage. It is characterized in that indoor air is sucked into the unit body through the suction port of the unit body opened on the back side.

In addition, the living room is arranged substantially symmetrically across the partition wall, and the unit body is formed so that the refrigerant pipe can be drawn out from either the left or right side, and corresponds to the bathroom on either side of the unit body. The refrigerant pipe drawn out from the ceiling may be led to the ceiling on the bathroom side so that the service inspection of the refrigerant pipe can be performed from the inspection port on the ceiling of the bathroom.

  In the present invention, by opening the inlet of the unit main body to the back of the ceiling, the configuration is such that, for example, indoor air is sucked into the unit main body through the inlet grill formed in the ceiling, the space behind the ceiling, and the inlet. The noise in the room can be reduced by arranging the suction grill at a position away from the room.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a layout diagram of a building such as a business hotel in which a built-in air conditioner according to the present invention is arranged. As shown in FIG. 1, this building includes substantially symmetrical rooms A and B with a partition wall 5 interposed therebetween. Each of these rooms A and B has an entrance passage 11 connected to the entrances (doors) 19 of the rooms A and B, a living room (guest room) 13 that communicates with the entrance passage 11 without a door, and the entrance And a bathroom 15 disposed on the side of the passage 11. In this embodiment, the bathroom 15 is disposed on the left side of the entrance passage 11 in the room A as viewed from the entrance 19 side, and the bathroom 15 is disposed on the right side of the entrance passage 11 in the room B as viewed from the entrance 19 side. ing.

  A bed is arranged in the living room 13, a toilet and a bath are arranged in the bathroom 15, and an inspection port 17 is provided in a ceiling portion 61 (see FIG. 4) near the door 16 of the bathroom 15. A suction grill 21 that also serves as an inspection port is provided on the ceiling 63 (see FIG. 2) in the vicinity of the inlet 19 of the inlet passage 11. In each of the rooms A and B, a built-in type air conditioner 30 is disposed on the ceiling 100 of the entrance passage 11.

  FIG. 2 shows an AA cross section of FIG. As shown in FIG. 2, the ceiling portion 63 of the entrance passage 11 is lower than the ceiling portion 65 of the living room 13, and this lowered ceiling is the ceiling plate 33 arranged in the horizontal direction and the ceiling arranged in the vertical direction. And plate 34. The built-in type air conditioner 30 is suspended in the ceiling space 100 with suspension bolts 42, and has a unit main body 35, a blow-out duct 50, and an electrical control box 37 for operation control. .

  The unit main body 35 is configured such that a top plate 39 is fixed to an upper edge portion of four side plates 38 that are arranged opposite to each other and provided in a square frame shape, and a bottom plate 46 is fixed to a lower edge portion. A heat insulating material is attached to the inner and outer surfaces of the side plate 38, the top plate 39 and the bottom plate 46. A hanging metal fitting 41 is fixed to the side plate 38 of the unit main body 35. The hanging metal fitting 41 is fixed to a hanging bolt 42 suspended from above, and the unit main body 35 is attached to the ceiling (not shown) of the building 31. It can be suspended.

  Inside the unit main body 35, the heat exchanger 1 and the fan 2 are accommodated. An air outlet 23 is formed in the side plate 38 </ b> A of the unit main body 35 facing the living room 13, and one end of the air outlet duct 25 is connected to the air outlet 23. The blowout duct 50 is supported by suspension bolts 40, and the other end of the blowout duct 50 is connected to a blowout grill 51 formed on the ceiling plate 34 that forms a vertical surface of the falling ceiling. A suction port 25 is formed in the bottom plate 46 of the unit body 35, and an air filter 26 is attached to the suction port 25 so as to be freely drawn out. The suction port 25 opens into the ceiling space 100, and an air filter 26 is attached to the opening.

  As shown in FIG. 1, the electrical box 37 is attached to a side plate 38 </ b> B that faces the inlet 19 of the inlet passage 11 among the side plates 38 of the unit body 35.

  The electrical box 37 has a substantially rectangular parallelepiped shape, and includes a control board, a terminal board, and the like that are not shown in the figure.

  Next, the operation of this embodiment will be described. When the fan 2 in the unit body 35 is driven, the air in the inlet passage 11 is sucked into the unit body 35 through the suction grille 21, the ceiling space 100, and the suction port 25, and is heated by the heat exchanger 1. After the replacement, the air is blown out from the blow grill 51 into the living room 13 (a room to be conditioned) through the blow duct 50. Since the living room 13 and the entrance passage 11 communicate with each other, the air blown into the living room 13 circulates through the entrance passage 11, thereby air conditioning the inside of the living room 13.

  In the present embodiment, the suction grill 21 is installed in the ceiling portion 63 near the inlet 19 of the inlet passage 11 and provided at a position away from the bed of the living room 13 in the air conditioning process. Is less likely to reach the living room 13, and noise in the living room 13 is reduced. In addition, since the suction grill 21 is installed closer to the entrance 19 than the entrance of the bathroom 15, moisture in the bathroom 15 is less likely to be sucked into the unit body 35 through the suction grill 21, thereby preventing corrosion of the unit body. can do.

  In the present embodiment, the inlet 25 of the unit body 35 is opened to the ceiling back 100, and the room grille 21 is formed in the unit body 35 through the suction grille 21 formed in the ceiling 63, the ceiling space 100, and the suction opening 25. Therefore, it is not necessary to arrange a suction duct that connects the suction grille and the suction port as in the prior art. According to this, as shown in FIG. 3, the space between the suction grille 21 and the unit main body 35 is widened, and a large work space can be taken. In addition, since the electrical box 37 for controlling the operation of the built-in air conditioner 30 is disposed on the side surface 38B of the unit body 35 facing the suction grille 21 side, the service inspection of the electrical box 37 from the suction grille 21 is performed. Can be made easier. As described above, since the service check of the electrical equipment box 37 can be easily performed, the time required for service check and the efficiency improvement can be improved.

  The unit body 35 is preferably installed at a predetermined distance L1 (for example, about 300 mm) away from the edge of the suction grill 35 on the room side so that the air filter 26 can be pulled out for service inspection. Further, it is desirable that the predetermined distance L2 (for example, 100 mm or more) be separated from the upper surface of the ceiling plate 33 so that the room air can be sufficiently sucked from the suction port 25.

  When the unit main body 35 is installed at a predetermined distance L1 from the suction grille 21 and the air filter 26 is arranged so as to be freely drawn out from the suction opening 25 of the unit main body 35, when the air filter 26 is attached to or detached from the unit main body 35, A sufficient space is secured between the suction grill 35 and the unit main body 35, and service inspection of the air filter 26 can be facilitated. Therefore, the service inspection time can be shortened and the efficiency can be improved.

  FIG. 4 shows a BB cross section of FIG. As shown in FIG. 4, the unit main body 35 includes a pipe connecting portion 67, and the pipe connecting portion 67 is provided toward the bathroom 15 side. The pipe connection portion 67 includes refrigerant pipe connection ports 43 and 44 connected to the heat exchanger 1 (see FIG. 2) in the unit main body 35, and a drain pipe connection port 45 for discharging drain generated in the unit main body 35. Is provided. A refrigerant pipe (liquid pipe) 68 and a refrigerant pipe (gas pipe) 69 are connected to the refrigerant pipe connection ports 43 and 44, and the refrigerant pipes 68 and 69 are used to connect to the outdoor unit 71 (see FIG. 1). Connected. Further, a drain pipe 70 is connected to the drain pipe connection port 45, and the drain pipe 70 is connected to a drain pipe (not shown).

  As shown in FIG. 1, the refrigerant pipes 68 and 69 include a solenoid valve kit 75 on the ceiling of the corridor 73 that passes through the ceiling space 100 of the bathroom 13 and exits the entrance passage 11. The electromagnetic valve kit 75 includes an electric expansion valve 76 that controls the amount of refrigerant flowing into the unit main body 35, and the electric expansion valve 76 is connected to a liquid pipe 68.

  In the present embodiment, since the unit main body 35 is disposed on the left side of the bathroom 15 in the drawing in the room A, the pipe connection portion 67 is provided on the right side of the unit main body 35 in the drawing. However, since the rooms A and B are symmetrical as described above, in the case of the room B, the pipe connection portion 67 is provided on the left side surface (not shown) of the unit main body 35. As described above, the unit main body 35 is configured so that the pipe connection portion 67 can be formed on either of the left and right side surfaces of the unit main body 35. Depending on the direction of the room in which the unit main body 35 is disposed, A pipe connection 67 is formed on the side facing the bathroom 15. According to this, since it is only necessary to change the piping take-out direction in accordance with the directions of the rooms A and B, the unit main body 35 disposed in the rooms A and B can be a common unit, and the built-in type air conditioner The number of 30 parts can be reduced.

  In this embodiment, since the pipe connection part 67 of the unit main body 35 is provided toward the bathroom 15 side, the pipe is connected from the inspection port 17 formed in the ceiling part 61 of the bathroom 15 as shown in FIG. Service inspection of the connecting portion 67 (refrigerant pipes 68 and 69) can be facilitated. Since service inspection can be facilitated in this way, service inspection time can be shortened and efficiency can be improved.

  In addition, since the electromagnetic valve kit 75 for controlling the amount of refrigerant flowing into the unit main body 35 is installed on the ceiling of the corridor 73 exiting the inlet passage 11, the electric expansion valve 76 of the electromagnetic valve kit 75 in the living room 13 is provided. It is possible to reduce noise due to flowing refrigerant sound or the like.

  In the present embodiment, a drain pump is not disposed in the unit main body 35, and the drainage is drained by using the downward slope of the drain pipe 70. According to this, generation | occurrence | production of the noise by the operation | movement sound of a drain pump can be prevented.

  The ceiling space 100 is preferably provided with means for introducing outside air (for example, a ventilation fan). According to this, even in a high-rise building in which windows cannot be opened and closed, a predetermined amount of outside air can be sucked into the space behind the ceiling by the ventilation fan and air conditioning can be performed.

  In the present embodiment, the above-described built-in type air conditioner 30 is provided in the ceiling space 100 and the ceiling space 100 is used as a part of the suction path to constitute an air conditioning system 200 (see FIG. 2). In the air conditioning system 200, when the fan 2 of the built-in type air conditioner 30 is driven, the air in the inlet passage 11 is sucked into the unit body 35 through the suction grille 21, the ceiling space 100, and the suction port 25. Then, after heat exchange is performed by the heat exchanger 1, the air is blown out from the blowing grill 51 into the living room 13 (conditioned room) through the blowing duct 50.

  As mentioned above, although this invention was demonstrated based on one Embodiment, this invention is not limited to this.

It is a layout figure in which a built-in type air conditioner according to the present invention is arranged. It is AA sectional drawing of FIG. It is the figure which showed the state which carries out service inspection from a suction grill. It is BB sectional drawing of FIG. It is the figure which showed the state which carries out service inspection from the inspection port.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger 2 Fan 21 Suction grill 25 Suction inlet 30 Built-in type air conditioner 35 Unit main body 63 Ceiling part 100 Ceiling space 200 Air conditioning system

Claims (11)

In a built-in type air conditioner equipped with a unit body containing a heat exchanger and a fan, which is installed on the ceiling of the building and blows out air conditioned by sucking room air into the conditioned room,
The conditioned room includes an entrance passage, a bathroom disposed on the side of the entrance passage, and a living room communicating with the entrance passage, and each ceiling portion of the bathroom and the entrance passage communicates with the back of the ceiling,
The unit body is installed on the ceiling portion of the entrance passage, and the suction opening of the unit passage is formed in the ceiling portion of the entrance passage by opening the suction port of the unit body in the back of the ceiling, and the suction port. Built-in type air conditioner characterized in that indoor air is sucked into the unit body through   The built-in type according to claim 1, wherein the ceiling of the building is a falling ceiling, the inlet of the unit body is located on a horizontal surface of the ceiling, and the outlet of the unit body is located on a vertical surface of the ceiling. Air conditioner. 3. The built-in type air conditioner according to claim 1, wherein the suction grill is formed in a ceiling near the entrance of the entrance passage . The piping connection of the unit body toward the bathroom side, according to any one of claims 1 to 3, characterized in that allowed the service inspection of the connecting section from the access port of the ceiling portion of the bath Built-in air conditioner. The built-in type air conditioner according to any one of claims 1 to 4 , wherein an electrical box is attached to a side surface of the unit main body to enable service inspection of the electrical box from the suction grill. The built-in air conditioner according to any one of claims 1 to 5 , wherein an air filter is attached to a suction port of the unit main body so that service inspection of the air filter can be performed from the suction grill. 7. The built-in air conditioner according to claim 6, wherein the air filter can be pulled out to the suction grille side. The built-in air conditioner according to any one of claims 1 to 7 , further comprising means for introducing outside air into the ceiling space. The built-in type air conditioner according to any one of claims 1 to 8 , wherein a solenoid valve for controlling an amount of refrigerant flowing into the unit main body is installed on a ceiling portion of a corridor that exits the inlet passage. . In the air conditioning system installed on the ceiling of the building, equipped with a built-in type air conditioner having a unit body that accommodates a heat exchanger and a fan, and sucking indoor air and blowing out air-conditioned air to the conditioned room,
The conditioned room includes an entrance passage, a bathroom disposed on the side of the entrance passage, and a living room communicating with the entrance passage, and each ceiling portion of the bathroom and the entrance passage communicates with the back of the ceiling,
While installing the unit body on the ceiling of the entrance passage, and using the space behind the ceiling as part of the suction path,
An air conditioning system characterized in that indoor air is sucked into a unit main body through a suction grill formed in a ceiling portion of the inlet passage , a ceiling back space, and a suction port of the unit main body opened in the back of the ceiling. The living room is arranged substantially symmetrically across the partition wall, and the unit body is formed so that the refrigerant pipe can be pulled out from either the left or right side, and is drawn out from the left or right side of the unit body corresponding to the bathroom. 11. The air conditioning system according to claim 10 , wherein the refrigerant pipe is led to a ceiling behind the bathroom, and service inspection of the refrigerant pipe is possible from an inspection port on the ceiling of the bathroom. .

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