JP6247512B2 - Sound absorption structure of air conditioning equipment - Google Patents

Description

The present invention relates to a sound absorbing structure for air conditioning equipment.

  As an air conditioner installed in a building such as a house, an air conditioner having an air conditioning duct through which conditioned air generated by an air conditioner flows, and a blowout chamber that is connected to the air conditioning duct and blows out the air flowing through the duct to the living space. Yes (see, for example, Patent Document 1). In such an air conditioning facility, the air conditioner is provided with a blower, and conditioned air generated by the air conditioner by the blower is supplied to the blowout chamber through the air conditioning duct.

  The blowout chamber is provided with a blowout port that blows conditioned air into the living space, and a blowout passage through which the conditioned air flows toward the blowout port. A sound absorbing material may be provided in the outlet passage in order to reduce noise generated by a blower of an air conditioner or the like from being propagated to the living space through the outlet.

JP 2008-241198 A

  By the way, in the above-described air conditioning equipment, a fender member may be provided to prevent small animals such as sharks from entering the blowout chamber (and further into the air conditioning duct) through the blowout port. The fender member is formed, for example, in a net plate shape, and is provided so as to close the air outlet.

  However, in such a configuration, it is assumed that a wind noise is generated when the conditioned air passes through the mesh (ventilation hole) of the fender, and in that case, there is a possibility that the occupant may feel uncomfortable. Further, even if the above-described configuration in which the sound absorbing material is provided in the blowout chamber is adopted, the sound absorbing material is positioned on the upstream side with respect to the fender, so that the wind noise generated by the fender is not detected. It is considered difficult to absorb the sound absorbing material.

  The above-mentioned problem is not limited to the case where a fender member is provided, but other foreign substance intrusion prevention members having a plurality of ventilation holes, such as a net-like filter member that prevents foreign matters such as dust and dust from entering, are provided. It is a problem that can occur as well.

This invention is made | formed in view of the said situation, and makes it a main objective to provide the sound absorption structure of the air-conditioning equipment which can aim at reduction of the wind noise generated in a foreign material penetration | invasion prevention part.

  In order to solve the above-described problem, the sound absorbing structure of the blower facility according to the first aspect of the present invention includes a blowout port that blows air toward an indoor space, an air passage through which the air flows toward the blowout port, and allows the air to pass therethrough. A foreign matter intrusion prevention unit that has a plurality of air holes and prevents foreign matter from entering the back side of the air passage through the air outlet; It is arrange | positioned in the position spaced apart from the said blower outlet in the channel | path to the channel | path back | inner side, The sound absorption member is provided in the said blower outlet side rather than the said foreign material penetration | invasion prevention part in the said air channel | path.

  According to the present invention, the foreign matter intrusion prevention unit is disposed at a position spaced apart from the outlet in the air passage toward the inner side of the passage, and the sound absorption is performed on the outlet side (in other words, on the downstream side) of the foreign matter intrusion prevention unit in the passage. Since the member is provided, wind noise generated when air passes through the air hole of the foreign matter intrusion prevention unit can be absorbed by the sound absorbing member on the downstream side. As a result, it is possible to reduce wind noise generated in the foreign matter intrusion prevention unit.

  The sound absorbing structure of the blower facility according to the second invention is the sound absorbing structure according to the first invention, wherein the air passage has a blowing passage that communicates with the blowing outlet and extends in an opening direction of the blowing outlet. It is provided in the blowing passage, and has an inclined surface portion that is inclined with respect to the opening direction, which is the passage direction of the blowing passage, and the air flows along the inclined surface portion in the blowing passage. Features.

  According to the present invention, the sound absorbing member has an inclined surface that is inclined with respect to the passage direction of the outlet passage, and air flows along the inclined surface in the outlet passage. It becomes possible to change the blow-out mode of the air from the blow-out port, for example, by directing it toward the opening direction of the blow-out port. In this case, a blowing mode changing function for changing the blowing mode of air from the outlet can be given to the sound absorbing member for absorbing wind noise. Therefore, the sound absorbing member can have multiple functions, and the configuration can be simplified as compared with the case where the blowing mode changing member is provided separately from the sound absorbing member.

  The sound absorbing structure of the blower facility according to a third aspect of the present invention is the sound absorbing structure according to the second aspect, wherein the sound absorbing members are respectively disposed at both ends in the passage width direction in the outlet passage, and each of the sound absorbing members is The inclined surface portions are arranged so as to face each other in the passage width direction and to be inclined in the same direction with respect to the passage direction, and between the inclined surface portions of the respective sound absorbing members in the blowing passage. An inclined passage portion extending in a direction inclined with respect to the passage direction is formed.

  According to the present invention, the inclined passage portion inclined with respect to the passage direction of the blowing passage is formed between the inclined surface portions of the respective sound absorbing members provided at both ends of the blowing passage in the passage width direction. In this case, since air flows through the inclined passage portion in the blowout passage, the direction (wind direction) of the air (wind) blown out from the blowout port can be directed obliquely with respect to the opening direction of the blowout port. Therefore, in this case, a wind direction changing function can be given to the sound absorbing member.

  According to a fourth aspect of the present invention, there is provided a sound absorbing structure for a blower facility according to the second aspect, wherein the sound absorbing members are respectively disposed at both ends of the outlet passage in the passage width direction. The inclined surface portions are arranged so as to face each other in the passage width direction and in opposite directions with respect to the passage direction, and the inclined surface portions of the respective sound absorbing members are arranged in the passage direction. A narrowing passage portion that is inclined so as to approach each other as it goes toward the air outlet side is formed between the inclined surface portions of the respective sound absorbing members in the air outlet passage, and the passage width decreases toward the air outlet side. It is characterized by.

  According to the present invention, the throttle passage portion is formed between the inclined surface portions of the respective sound absorbing members provided at both ends in the passage width direction of the outlet passage so that the passage width decreases toward the outlet. In this case, since air flows through the throttle passage portion in the blowout passage, the blowout speed (wind speed) of the air (wind) blown out from the blowout port can be increased. Therefore, in this case, a wind speed increasing function can be imparted to the sound absorbing member.

  On the other hand, since the foreign matter intrusion prevention portion is provided upstream of the sound absorbing member in the air passage, the passage width of the air passage is not narrowed (squeezed) at the portion where the foreign matter intrusion prevention portion is provided. Therefore, the speed of air flow does not increase at the part. Therefore, it is possible to avoid an increase in wind noise generated in the foreign matter intrusion prevention unit while obtaining the above-described wind speed increasing function.

  According to a fifth aspect of the present invention, there is provided a sound absorbing structure for a blower facility according to the second aspect, wherein the sound absorbing members are respectively disposed at both ends of the outlet passage in the passage width direction. The inclined surface portions are arranged so as to face each other in the passage width direction and in opposite directions with respect to the passage direction, and the inclined surface portions of the respective sound absorbing members are arranged in the passage direction. Inclined so as to move away from each other toward the air outlet side, an extended passage portion having a passage width that increases toward the air outlet side is formed between the inclined surface portions of the respective sound absorbing members in the air outlet passage. It is characterized by.

  According to the present invention, the extended passage portion in which the passage width increases toward the air outlet side is formed between the inclined surface portions of the respective sound absorbing members provided at both ends in the passage width direction of the outlet passage. In this case, since air flows through the extended passage portion in the blowout passage, the blowout speed (wind velocity) of the air (wind) blown out from the blowout port can be reduced. Therefore, in this case, a wind speed reducing function can be imparted to the sound absorbing member.

  According to a sixth aspect of the present invention, there is provided the sound absorbing structure for a blower facility according to any one of the third to fifth aspects, wherein the outlet passage is formed to have a rectangular passage section, and the passage width sandwiches the outlet passage. And each sound absorbing member has a right triangle shape having a predetermined thickness, and a side portion on the hypotenuse side as the inclined surface portion is defined by the end surfaces facing each other in the passage width direction. The side surfaces adjacent to each other in the passage width direction and adjacent to the side surface are disposed in contact with the end surface of the passage, and each of the sound absorbing members can be attached to and detached from the outlet passage. It is provided.

  According to the present invention, in the blowing passage having a rectangular passage section, the right-angled triangular sound-absorbing members are disposed at both ends in the passage width direction, and the respective sound-absorbing members are respectively provided on the side portions on the hypotenuse side ( (Inclined surface portion) is disposed in the state of facing the passage width direction, and the side surface portion on the adjacent side is in contact with the end surface of the passage. In this case, an air circulation portion through which air flows is formed between the inclined surface portions of each of the sound absorbing members.

  In addition, since each of these sound absorbing members is detachably provided in the blowing passage, it is possible to change the inclination direction of the inclined surface portion by inverting the sound absorbing member in the passage direction of the blowing passage. In this case, each sound absorbing member can be arranged in any of the arrangement modes of the third to fifth inventions, and as a result, the air circulation part can be placed in any of the inclined passage part, the throttle passage part, and the expansion passage part. Can also be set. Thereby, it becomes possible to change suitably the blowing mode of the air from a blower outlet according to the floor plan etc. of indoor space, and can aim at the improvement of convenience.

  According to a seventh aspect of the present invention, there is provided a sound absorbing structure for a blower facility including a ventilation duct and a blowout chamber connected to the ventilation duct in any one of the first to sixth inventions, and the air passage includes the ventilation duct. And the blowout chamber has the blowout port and a blowout passage that is a part of the air passage and communicates with the blowout port, It is provided in the connection part of a ventilation duct and the said blowing chamber, The said sound absorption member is provided in the said blowing channel | path, It is characterized by the above-mentioned.

  According to the present invention, since the foreign matter intrusion prevention portion is provided at the connection portion between the ventilation duct and the blowout chamber, the foreign matter penetration prevention portion is relatively easily arranged by being sandwiched between the ventilation duct and the blowout chamber. Can be set. Further, by providing the foreign matter intrusion prevention portion outside the blowout chamber, the entire passage direction of the blowout passage in the blowout chamber can be used as a space for arranging the sound absorbing member. As a result, the sound absorbing effect by the sound absorbing member can be obtained. It becomes possible to raise.

The schematic longitudinal cross-sectional view which shows the structure in a building. The perspective view which shows the structure of an air conditioner and its periphery. The perspective view which shows the connection part of an air-conditioning duct and a blowing chamber, and its periphery structure. The longitudinal cross-sectional view which shows the structure of the connection part of an air conditioning duct and a blowing chamber. The cross-sectional view which shows the structure of the connection part of an air conditioning duct and a blowing chamber. The perspective view which shows the blowing chamber and its peripheral member. The cross-sectional view which shows another aspect regarding arrangement | positioning of a sound absorption member. (A) is a perspective view which shows the structure of a blowing chamber and its peripheral member, (b) is a cross-sectional view which shows the structure. The disassembled perspective view which shows a sound-absorbing member and its peripheral member.

  Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view showing a configuration in a building.

  As shown in FIG. 1, a building 10 such as a house is provided with a living room 11, a corridor 12, and a machine room 13 as indoor spaces. The corridor 12 connects the living room 11 and the machine room 13, and four sides thereof are partitioned by a partition wall 18 (see also FIGS. 2 and 3). The partition wall 18 is provided with an entrance / exit 21a for entering / exiting between the corridor 12 and the living room 11 and an entrance / exit 21b for entering / exiting between the corridor 12 and the machine room 13. Doors 22a and 22b are provided at the entrances 21a and 21b, respectively.

  Ceiling members 27 and 28 are provided on the ceiling of the indoor space. Above the ceiling surface materials 27 and 28 is a ceiling back space 25, and this ceiling back space 25 is divided into an indoor space and a vertical space by the ceiling surface materials 27 and 28. The ceiling surface materials 27 and 28 include a first ceiling surface material 27 and a second ceiling surface material 28 provided at a position lower than the first ceiling surface material 27. The first ceiling member 27 is provided across the living room 11 and the machine room 13, and forms the ceiling surface of the living room 11 and the machine room 13. The second ceiling member 28 is provided in the hallway 12 and forms the ceiling surface of the hallway 12. The second ceiling surface material 28 is a so-called falling ceiling, whereby the corridor 12 is a low ceiling space whose ceiling height is lower than that of the living room 11 and the machine room 13.

  In the hallway 12, a first ceiling surface material 27 is provided in addition to the second ceiling surface material 28. Therefore, in the hallway 12, the ceiling back space 25 is vertically divided by the first ceiling surface material 27, and the upper space portion 25 a and the first ceiling surface above the first ceiling surface material 27 in the ceiling back space 25. The lower side of the material 27 is a lower space portion 25b.

  The building 10 is provided with an air conditioning facility 30 for air conditioning the indoor space. Hereinafter, the configuration of the air conditioning equipment 30 will be described based on FIG. 2 in addition to FIG. 1. FIG. 2 is a perspective view showing the configuration of the air conditioning equipment 30 and its surroundings. In FIG. 2, for the sake of convenience, the illustration of the partition wall 18 and the like on the front side of the sheet is omitted.

  As shown in FIGS. 1 and 2, the air conditioner 30 includes an air conditioner 31 that generates conditioned air (warm air and cold air), an air conditioner duct 32 connected to the air conditioner 31, and a blowout connected to the air conditioner duct 32. And a chamber 33. The air conditioner 31 is configured as an indoor unit installed in the machine room 13. The air conditioner 31 takes in air flowing into the machine room 13 from the corridor 12 as return air, and generates conditioned air based on the return air. The air conditioner 31 supplies the generated conditioned air to the air conditioning duct 32.

  The air conditioning duct 32 is installed in the ceiling space 25 above the hallway 12. The air conditioning duct 32 is installed in the lower space part 25b of the ceiling back space 25, and is arranged so as to extend along the passage direction (longitudinal direction) of the hallway 12 in the lower space part 25b. The air conditioning duct 32 penetrates the partition wall 18 and protrudes from the upper position of the hallway 12 to the machine room 13, and the protruding portion is connected to the air conditioner 31 via the connection duct 34. The air conditioning duct 32 corresponds to a ventilation duct.

  The air conditioning duct 32 has a plurality of duct portions 42 arranged side by side. The duct portion 42 is formed in a square cylinder shape by using polystyrene foam such as polystyrene foam, and has an internal passage 43 through which conditioned air flows. The air conditioning duct 32 is configured by connecting the plurality of duct portions 42 to each other. In the connected state, the internal passages 43 communicate with each other to form a series of duct internal passages. In addition, although illustration is abbreviate | omitted, the connection between adjacent duct parts 42 is performed using a dedicated connection metal fitting.

  The blowout chamber 33 is disposed side by side with respect to the air conditioning duct 32 and is connected to the duct 32 from the side. The blowout chamber 33 is connected to a predetermined duct portion 42 (hereinafter, the reference numeral is denoted by X) among the plurality of duct portions 42 constituting the air conditioning duct 32.

  The blowout chamber 33 has a blowout port 35 through which conditioned air is blown toward the living room 11. A communication hole 36 is formed in the partition wall 18 to communicate the ceiling space 25 (lower space portion 25 b) and the living room 11, and the blowout chamber 33 faces the air outlet 35 toward the living room 11 in the communication hole 36. It is inserted.

  A blowout grill 39 is provided on the blowout outlet 35 side (the living room 11 side) of the blowout chamber 33. The blowing grill 39 is formed in a rectangular frame shape that is long in the horizontal direction, and its horizontal width is larger than the horizontal width of the blowing chamber 33. By this blowing grill 39, the blowing chamber 33 and the communication hole 36 are covered and hidden from the living room 11 side.

  Next, the blowout chamber 33 and the surrounding configuration will be described with reference to FIGS. FIG. 3 is a perspective view showing a connection portion between the air conditioning duct 32 and the blowout chamber 33 and its peripheral configuration. FIG. 4 is a longitudinal sectional view showing a configuration of a connection portion between the air conditioning duct 32 and the blowout chamber 33. FIG. 5 is a cross-sectional view showing the same configuration. FIG. 6 is a perspective view showing the blowing chamber 33 and its peripheral members.

  As shown in FIGS. 3 to 5, the partition wall 18 includes a plurality of wall panels 44 arranged side by side (see also FIG. 2). The wall panel 44 has a pair of wall materials 45 facing each other and a wall frame 46 provided between the wall materials 45. Each wall surface material 45 is configured by a plaster board, and the wall frame 46 is configured by connecting a plurality of frame materials made of wooden squares in a rectangular frame shape.

  Of the plurality of wall panels 44, a communication hole 36 is formed in the wall panel 44 provided on the side surface side of the duct portion 42X. The communication hole 36 is formed by a chamber mounting frame 47 provided in the upper part of the wall panel 44, and the chamber mounting frame 47 is configured as a part of the wall frame 46. The chamber mounting frame 47 has a pair of upper and lower horizontal rails 48 and a pair of plate members 49 provided between the horizontal rails 48 so as to be separated in the left-right direction (wall width direction). The crosspiece 48 and each plate 49 are connected to each other. An inner space surrounded by the horizontal bars 48 and the plate members 49 is a communication hole 36.

  The blowing chamber 33 is inserted into the communication hole 36, and the blowing chamber 33 is connected to the duct portion 42X in the inserted state. The duct portion 42 </ b> X has a supply port 51 for supplying conditioned air to the blowing chamber 33 on the side wall portion 42 a. The supply port 51 has a rectangular shape, and is formed by partially cutting a part of the side wall portion 42a using a tool such as a cutter.

  As shown in FIG. 3 to FIG. 6, the blowout chamber 33 is formed in a rectangular parallelepiped shape with a polystyrene foam such as polystyrene foam, like the duct portion 42. The blowout chamber 33 has an in-chamber passage 53 through which conditioned air flows. The in-chamber passage 53 is divided into a plurality of parts (specifically, two parts). However, a plurality of in-chamber passages 53 are not necessarily provided, and only one may be provided. The in-chamber passage 53 corresponds to a blowing passage.

  The blowing chamber 33 is provided with two end surface portions 33a and 33b facing each other, and the in-chamber passage 53 extends through the blowing chamber 33 in a direction perpendicular to the end surface portions 33a and 33b. The in-chamber passage 53 is opened to the outside at each of the end surface portions 33a and 33b, and the opening in the end surface portion 33b is an intake port for taking in the conditioned air from the air conditioning duct 32 (duct portion 42X) to the in-chamber passage 53. 54, and the opening in the end surface portion 33 a is a blowout port 35 through which the conditioned air taken into the in-chamber passage 53 is blown into the living room 11. In this case, the in-chamber passage 53 extends linearly in the opening direction of the intake port 54 and the air outlet 35, and the opening direction is the passage direction of the in-chamber passage 53.

  The in-chamber passage 53 has a rectangular shape (rectangular shape) whose passage section is long in the width direction of the passage 53 (corresponding to the passage width direction). The passage cross section of the in-chamber passage 53 has the same shape throughout the passage direction. Both end portions in the passage width direction of the in-chamber passage 53 are respectively defined by the side wall portions 33c of the blowout chamber 33, and the inner side surfaces of the side wall portions 33c correspond to the passage end surfaces.

  L-shaped fixtures 55 are provided on the side wall portions 33 c on both sides of the blowout chamber 33. A part of the fixing metal 55 is embedded in the side wall 33 c and is integrated with the blowing chamber 33. The fixing bracket 55 is fixed to the plate member 49 of the chamber mounting frame 47 with a screw or the like from the living room 11 side in a state where the blowout chamber 33 is inserted into the communication hole 36 of the chamber mounting frame 47. Thereby, the blowing chamber 33 is fixed to the chamber mounting frame 47 via the fixing bracket 55.

  In the fixed state of the blowout chamber 33, the intake port 54 of the blowout chamber 33 and the supply port 51 of the duct portion 42 are disposed at positions facing each other, and the duct is formed via the supply port 51 and the intake port 54. The internal passage 43 of the portion 42X (and thus the internal passage of the air conditioning duct 32) and the internal passage 53 of the blowout chamber 33 communicate with each other. Thereby, the conditioned air flowing through the air conditioning duct 32 (duct portion 42X) flows into the in-chamber passage 53 through the supply port 51 and the intake port 54. In this case, the duct passage and the chamber passage 53 constitute an air passage.

  In the present embodiment, as described above, the air-conditioning duct 32 and the blowout chamber 33 are fixed to the partition wall 18 (and thus the building 10), respectively, while the members 32 and 33 are not connected to each other. It is in a state.

  A fender member 57 and an airtight member 58 are provided at a connection portion between the duct portion 42 </ b> X and the blowing chamber 33. At the connection portion between the duct portion 42X and the blowing chamber 33, the side wall portion 42a (specifically, the outer surface thereof) of the duct portion 42X and the end surface portion 33b of the blowing chamber 33 are opposed to each other. The fender member 57 and the airtight member 58 are sandwiched between 33b.

  The fender member 57 is formed in a plate shape having a plurality of vent holes 57 a and has substantially the same size (vertical and horizontal dimensions) as the end surface portion 33 b of the blowing chamber 33. Specifically, the fender member 57 is formed in a mesh shape (mesh shape) by knitting a plurality of metal or resin wires, and is surrounded by each mesh (a plurality of metal or resin wires). The inner region) is the vent hole 57a. The vent hole 57a (mesh) is set to such a size that a small animal such as a cage cannot pass through.

  The fender member 57 is affixed and fixed to the end surface portion 33b of the blowing chamber 33 using an adhesive. In this case, each intake port 54 of the blowout chamber 33 is covered with the fender member 57. Thereby, even if a small animal such as a shark enters the in-chamber passage 53 from the outlet 35 of the outlet chamber 33, the small animal enters the internal passage 43 (in the air conditioning duct 32) of the duct portion 42X through the intake port 54. Is prevented. In this case, the fender member 57 corresponds to a foreign matter intrusion prevention unit.

  The airtight member 58 is formed in a plate shape from an elastic cushion material (raw material), and is formed of, for example, foamed EPDM. The airtight member 58 is formed with openings 58 a corresponding to the intake ports 54 of the blowout chamber 33. The airtight member 58 is affixed to the end surface portion 33b of the blowout chamber 33 in a state where the openings 58a are aligned with the intake ports 54, respectively. Specifically, the airtight member 58 is affixed to the end surface portion 33 b with the fender member 57 interposed between the airtight member 58 and the end surface portion 33 b of the blowout chamber 33.

  The airtight member 58 is interposed in a compressed state between the side wall portion 42 a of the duct portion 42 </ b> X and the end surface portion 33 b of the blowout chamber 33. Accordingly, the duct portion 42 </ b> X and the blowout chamber 33 are not connected to each other, and airtightness is secured at the connection portion between the both 42 </ b> X and 33.

  A blow grill 39 is provided on the side opposite to the air conditioning duct 32 with the blow chamber 33 interposed therebetween. The blow-out grill 39 is configured by connecting a plurality of vertical bars 39a and a plurality of horizontal bars 39b in a lattice shape. The blowing grill 39 is detachably attached to the chamber mounting frame 47 of the partition wall 18. Specifically, a magnet 64 is provided on the plate member 49 side at a portion where the vertical beam 39a of the blow grill 39 (specifically, the vertical beam 39a at both ends) and the plate material 49 of the chamber mounting frame 47 are opposed to each other, and the vertical beam 39a. A magnet receiver 65 (for example, a steel plate) that is attracted to the magnet 64 is provided on the side. In this case, when the magnet receiver 65 is attracted to the magnet 64, the blowing grill 39 is detachably attached to the chamber attachment frame 47.

  Next, the sound absorbing structure provided in the blowing chamber 33 will be described.

  A sound absorbing member 60 is provided in the in-chamber passage 53 of the blowout chamber 33. The sound absorbing member 60 is made of a material (raw material) having excellent sound absorbing performance and elasticity, and is made of, for example, foamed polyurethane. In this case, the sound absorbing member 60 is disposed on the outlet 35 side of the fender member 57, in other words, on the downstream side in the flow direction of the conditioned air.

  The sound absorbing member 60 is formed in a right triangle shape having a predetermined thickness. The sound absorbing member 60 has a pair of upper surface portion 60a and lower surface portion 60b that form a right triangle and face each other, and three side surface portions 60c to 60e formed between the upper surface portion 60a and the lower surface portion 60b. ing. These three side surface portions 60c to 60e include two side surface portions 60c and 60d that are perpendicular to each other, and a side surface portion 60e that obliquely connects the side surface portions 60c and 60d. In this case, each side surface portion 60c, 60d is formed in a portion corresponding to the adjacent side of the right triangle, and the side surface portion 60e is formed in a portion corresponding to the oblique side of the right triangle. From this point, it can also be said that each side surface portion 60c, 60d is an adjacent side surface portion, and the side surface portion 60e is an oblique side surface portion. In this case, the side surface portion 60e corresponds to the inclined surface portion.

  The length of the side surface portion 60c (specifically, the length in the direction orthogonal to the thickness direction of the sound absorbing member 60) is longer than that of the side surface portion 60d. Specifically, the side surface portion 60c is a passage of the in-chamber passage 53 of the blowing chamber 33. The length is substantially the same as the length (the length in the passage direction). The sound absorbing member 60 has a thickness dimension (in other words, a separation distance from the upper surface portion 60 a to the lower surface portion 60 b) that is slightly larger than the vertical dimension (height dimension) of the in-chamber passage 53. However, the thickness of the sound absorbing member 60 may be the same as the vertical dimension of the in-chamber passage 53, or may be smaller than the vertical dimension of the in-chamber passage 53.

  The sound absorbing member 60 is provided in each chamber passage 53. The sound absorbing members 60 are disposed at both end portions in the passage width direction (lateral width direction) in each chamber passage 53. In the following, for convenience of explanation, among the sound absorbing members 60 at both ends of the in-chamber passage 53, one of the sound absorbing members 60 (left side in the front view of the air outlet 35) is marked with A and the other sound absorbing member 60. B is added to the reference numeral (right side in front view of the air outlet 35). Each of these sound absorbing members 60A and 60B has the same configuration (the same shape and the same size).

  Each of the sound absorbing members 60A and 60B is arranged such that each side surface portion 60e faces each other in the passage width direction of the in-chamber passage 53, and each side surface portion 60c contacts the inner side surface of the side wall portion 33c of the blowing chamber 33. It is arranged to touch. In this case, the sound absorbing member 60 is disposed so as to straddle the entire passage direction in the in-chamber passage 53, and the end portion on the intake port 54 side is in contact with the fender member 57. The sound absorbing member 60 may be arranged in a non-contact state with respect to the fender member 57.

  Each of the sound absorbing members 60A and 60B is disposed such that each side surface portion 60e is inclined in the same direction with respect to the passage direction of the in-chamber passage 53. Specifically, each side surface portion 60e is parallel to each other. It is arranged to become. More specifically, the side surface portion 60e of the sound absorbing member 60A is inclined toward the side away from the side wall portion 33c with which the sound absorbing member 60A abuts as it goes from the intake port 54 side to the air outlet 35 side in the passage direction. The side surface portion 60e of the sound absorbing member 60B is inclined toward the side approaching the side wall portion 33c with which the sound absorbing member 60B abuts as it goes from the intake port 54 side toward the air outlet 35 side.

  In the in-chamber passage 53, an inclined passage portion 62 is formed between the side surface portions 60e of the sound absorbing members 60A and 60B. The inclined passage portion 62 extends in a direction inclined with respect to the passage direction of the in-chamber passage 53, and more specifically, the right side in a front view of the outlet 35 as it goes from the inlet 54 side toward the outlet 35 in the same direction. It extends so as to be inclined.

  The sound absorbing member 60 is disposed in a compressed state in the thickness direction (vertical direction) in the in-chamber passage 53. In this case, the sound absorbing member 60 is pressed against the upper and lower partition walls sandwiching the chamber passage 53 by a repulsive force (restoring force) based on the compression, and is held in the chamber passage 53 by the pressing. Thereby, the sound absorbing member 60 can be attached to and detached from the passage 53 by being taken in and out of the passage 53 in the chamber through the air outlet 35.

  According to the above-described sound absorbing structure, since the sound absorbing member 60 is provided in the in-chamber passage 53, the sound absorbing member 60 is disposed on the outlet 35 side (downstream side) with respect to the fender member 57. Wind noise generated when passing through the vent hole 57a of the fender member 57 can be absorbed by the sound absorbing member 60 on the downstream side. Thereby, it is possible to reduce wind noise generated in the fender member 57. In addition, since the fender member 57 is disposed in the vicinity of the intake port 54 that is separated from the blower outlet 35 toward the back of the passage in the blowout chamber 33, the wind noise generated by the fender member 57 is also reduced in this respect. You can expect.

  Further, since the fender member 57 is provided at the connection portion between the air conditioning duct 32 and the blowout chamber 33, the fender member 57 is relatively easily disposed by being sandwiched between the air conditioning duct 32 and the blowout chamber 33. Can be set. In addition, by providing the fender member 57 outside the blowout chamber 33, the entire passage direction of the in-chamber passage 53 of the blowout chamber 33 can be used as an arrangement space for the sound absorbing member 60. As a result, the sound absorbing effect by the sound absorbing member 60 can be enhanced.

  Further, since the inclined passage portion 62 is formed between the side surface portions 60 e of the sound absorbing members 60 </ b> A and 60 </ b> B, the conditioned air flows through the inclined passage portion 62 in the in-chamber passage 53. In this case, since the conditioned air is blown from the outlet 35 in an oblique direction with respect to the opening direction of the outlet 35, the blowing direction (wind direction) of the conditioned air (wind) is changed to the sound absorbing members 60A and 60B. A wind direction changing function can be provided. As a result, the sound absorbing members 60A and 60B can be multi-functional, and the configuration can be simplified as compared with the case where the wind direction changing member is provided separately from the sound absorbing members 60A and 60B.

  Here, as described above, in the present embodiment, since the sound absorbing member 60 is detachably provided in the chamber passage 53 of the blowout chamber 33, the arrangement of the sound absorbing member 60 in the chamber passage 53 is described above. It is possible to change to a mode different from the mode (arrangement mode in FIG. 5). Therefore, in the following, an example in which the arrangement mode of the sound absorbing member 60 is changed will be described with reference to FIGS. FIGS. 7A to 7C are cross-sectional views showing other modes related to the arrangement of the sound absorbing member 60.

  7A to 7C, each of the sound absorbing members 60A and 60B has each side surface portion 60e opposed to the passage width direction of the in-chamber passage 53, and each side surface portion 60c has a blowing chamber. An air circulation portion through which conditioned air flows is formed between the side surface portions 60e of the respective sound absorbing members 60A and 60B.

  First, in FIG. 7A, the side surface portions 60e of the respective sound absorbing members 60A and 60B are inclined in the same direction with respect to the passage direction of the in-chamber passage 53. Specifically, the side surface portions 60e are Respectively, the sound absorbing members 60A and 60B are inclined in the direction opposite to the arrangement mode (FIG. 5). That is, the side surface portion 60e of the sound absorbing member 60A is inclined toward the side approaching the side wall portion 33c with which the sound absorbing member 60A abuts as it goes from the intake port 54 side to the air outlet 35 side in the passage direction. The side surface portion 60e of 60B is inclined toward the side away from the side wall portion 33c with which the sound absorbing member 60B abuts as it goes from the intake port 54 side toward the air outlet 35 side.

  In the in-chamber passage 53, an inclined passage portion 67 is formed between the side surface portions 60e of the respective sound absorbing members 60A and 60B. The inclined passage portion 67 extends in a direction inclined with respect to the passage direction of the in-chamber passage 53, and more specifically, in the front view of the outlet 35 as it goes from the inlet 54 side toward the outlet 35 in the same direction. It extends to incline to the left. In this case, in the in-chamber passage 53, the conditioned air flows through the inclined passage portion 67, so that the conditioned air is blown out from the outlet 35 in an oblique direction with respect to the opening direction of the outlet 35. In detail, it blows off in the diagonal direction (left diagonal direction in the front view of the blower outlet 35) contrary to the case of the arrangement | positioning aspect of FIG. 5 mentioned above. Therefore, also in this case, it is possible to change the direction (wind direction) of the conditioned air (wind) blown out from the air outlet 35.

  Subsequently, in FIG. 7B, the side surfaces 60e of the respective sound absorbing members 60A and 60B are inclined in directions opposite to each other with respect to the passage direction of the in-chamber passage 53. 60e inclines so that it may mutually approach as it goes to the blower outlet 35 side from the intake 54 side in the said channel | path direction. In this case, the passage 53 in the chamber is formed with a narrowing passage 68 between the side surfaces 60e of the respective sound absorbing members 60A and 60B. Since the conditioned air flows through the throttle passage 68 in the in-chamber passage 53, it is possible to increase the blowing speed (wind speed) of the conditioned air (wind) blown from the outlet 35. That is, in this case, it is possible to provide a function of increasing the wind speed to each of the sound absorbing members 60A and 60B, and the function enables the conditioned air to be blown out from the air outlet 35 to a relatively long distance. Therefore, for example, the conditioned air can reach the position away from the outlet 35 in the living room 11.

  On the other hand, since the fender member 57 is provided on the upstream side of the sound absorbing members 60A and 60B, the passage width of the air passage is not narrowed (squeezed) at the portion where the fender member 57 is provided. Therefore, the speed at which the conditioned air flows is not increased in the part. Therefore, it is possible to avoid an increase in wind noise generated by the fender member 57 while obtaining the above-described wind speed increasing function.

  Subsequently, in FIG. 7C, the side surface portions 60e of the respective sound absorbing members 60A and 60B are inclined in directions opposite to each other with respect to the passage direction of the in-chamber passage 53. 60e inclines so that it may mutually distance as it goes to the blower outlet 35 side in the said channel | path direction. In this case, in the in-chamber passage 53, an extended passage portion 69 is formed between the side surface portions 60e of the respective sound absorbing members 60A and 60B so that the passage width increases toward the air outlet 35 side. Since the conditioned air flows through the expansion passage portion 69 in the in-chamber passage 53, the blowing speed (wind speed) of the conditioned air (wind) blown out from the blowout port 35 can be reduced. That is, in this case, the sound absorbing member 60A, 60B can be given a wind speed reducing function, and the momentum of the conditioned air blown out from the outlet 35 can be suppressed by the function. Accordingly, it is possible to suppress inconveniences such as, for example, the conditioned air strongly hitting the user (resident) and causing discomfort to the user. Moreover, according to the said function, since the conditioned air which blows off from the blower outlet 35 can be easily diffused in the comparatively wide range in the living room 11, it is convenient when air-conditioning the living room 11 uniformly.

  As described above, the sound absorbing members 60A and 60B are detachably provided in the in-chamber passage 53, so that the arrangement of the sound absorbing members 60A and 60B is shown in FIGS. 5 and 7A to 7C. It is possible to change to any of the arrangement modes shown. In other words, the air circulation part formed between the side surface parts 60e of the sound absorbing members 60A and 60B can be set to any of the inclined passage part 62, the inclined passage part 67, the throttle passage part 68, and the expansion passage part 69. It has become. Thereby, it becomes possible to change suitably the direction and speed (flow velocity) of the conditioned air which blows off from the blower outlet 35 according to the floor plan etc. of the living room 11, and can aim at the improvement of convenience.

  The present invention is not limited to the above embodiment, and may be implemented as follows, for example.

  (1) In the above embodiment, the sound absorbing member 60 is formed in a right triangle shape, but the shape of the sound absorbing member 60 is not necessarily limited thereto. For example, the sound absorbing member 60 may be formed in other shapes such as a rectangular parallelepiped shape or a cylindrical shape.

  In the above-described embodiment, the sound absorbing member 60 is disposed at both ends in the passage width direction of the in-chamber passage 53. Instead of or in addition to this, the sound absorbing member 60 is disposed in the intermediate portion of the in-chamber passage 53 in the passage width direction. You may arrange | position (for example, center part).

  In the above embodiment, two sound absorbing members 60 are disposed in the (one) chamber passage 53. However, only one sound absorbing member 60 may be disposed in the chamber passage 53, or three or more sound absorbing members 60 may be disposed. May be.

  Further, the sound absorbing member 60 does not necessarily need to be detachably provided in the in-chamber passage 53, and may be detachably provided by fixing the side wall 33c of the blowing chamber 33 with an adhesive.

  (2) In the above embodiment, the sound absorbing member 60 is formed in a right triangle shape, and the side surface portion 60e is an inclined surface portion inclined with respect to the passage direction of the in-chamber passage 53. The plate surface of the sound absorbing member may be an inclined surface portion by forming the member in a rectangular plate shape and disposing the sound absorbing member obliquely with respect to the passage direction.

  (3) In the above embodiment, the fender member 57 is provided at the connecting portion between the air conditioning duct 32 and the blowout chamber 33, but this is changed to provide the fender member 57 in the in-chamber passage 53 of the blowout chamber 33. May be. In that case, the sound absorbing member 60 may be arranged on the outlet 35 side (downstream side) of the fender member 57 in the in-chamber passage 53.

  Further, the fender member 57 may be provided in a duct passage of the air conditioning duct 32, for example, in the inner passage 43 of the duct portion 42X. In that case, the sound absorbing member 60 may be provided downstream of the fender member 57 in the internal passage 43 or in the chamber passage 53.

  (4) A plate-like sound absorbing member is provided in the chamber passage 53 of the blowout chamber 33 so as to partition the passage 53 in the passage width direction, and the sound absorbing member is provided via a shaft portion extending in the vertical direction (passage height direction). Thus, the inclination angle of the sound absorbing member with respect to the passage direction of the in-chamber passage 53 may be adjustable. Specific examples thereof are shown in FIGS.

  As shown in FIG. 8, the chamber passage 53 is provided with two sound absorbing members 71 and 72 each having a rectangular plate shape at both ends in the passage width direction, and the sound absorbing members 71 and 72 are opposed to each other. It is arranged in the state. A movable sound absorbing member 73 is provided between the sound absorbing members 71 and 72 in the in-chamber passage 53. The sound absorbing member 73 has a rectangular plate shape as a whole, and is arranged so as to partition the passage 53 in the passage width direction at the central portion of the passage 53 in the chamber in the passage width direction.

  As shown in FIGS. 8 and 9, the sound absorbing member 73 is formed by folding (folding in half) a sound absorbing material formed in a strip shape in the longitudinal direction. The sound absorbing member 73 is disposed in the passage 53 with its folding direction directed to the passage direction of the in-chamber passage 53. Specifically, the sound absorbing member 73 is disposed with its folding portion 74 facing the outlet 35 side. . A flat plate-like support plate 75 is sandwiched between two overlapping portions 73a and 73b that overlap each other in the sound absorbing member 73. The overlapping portions 73a and 73b of the sound absorbing member 73 are fixed to both plate surfaces of the support plate 75 using an adhesive or the like. In such a fixed state, the sound absorbing member 73 has a plate shape as a whole, and its vertical dimension is set to be longer than the vertical dimension of the support plate 75. Thus, in the arrangement state of the sound absorbing member 73 in the in-chamber passage 53, the sound absorbing member 73 is slightly compressed by the upper and lower partition walls sandwiching the in-chamber passage 53 in the blowout chamber 33, while the support plate 75 is not in contact with each of the partition walls.

  A shaft portion 77 extending in the vertical direction (the height direction of the in-chamber passage 53) is fixed to the support plate 75 at the end on the outlet 35 side. An arc-shaped bent portion 75a is provided at the end portion of the support plate 75, and the shaft portion 77 is fixed inside the bent portion 75a. More specifically, through-holes are formed at positions corresponding to each other in the shaft portion 77 and the bent portion 75a, and a screw 79 is inserted into both the through-holes so as to be in a fastening state. The support plate 75 is integrated.

  The both sides of the shaft portion 77 in the longitudinal direction are protruded from the support plate 75 and the sound absorbing member 73 to form protruding portions 77a. The protruding portions 77a on both sides are respectively disposed in bearing portions 81 formed of semicircular concave portions formed in the end surface portion 33a of the blowing chamber 33. By rotating the shaft portion 77 in the bearing portion 81, the support plate 75 and thus the sound absorbing member 73 can be rotated about the shaft portion 77. That is, the sound absorbing member 73 is rotatable with the end on the outlet 35 side as a rotation base end and the end on the intake port 54 side as a rotation tip. And by the rotation of the sound absorbing member 73, the sound absorbing member 73 can adjust the inclination angle of the in-chamber passage 53 with respect to the passage direction.

  According to the above-described configuration, by adjusting the inclination angle of the sound absorbing member 73, the flow direction of the conditioned air in the chamber passage 53 can be adjusted. It becomes possible to adjust. Thereby, it becomes possible to adjust the blowing direction of conditioned air according to the floor plan etc. of the living room 11, and the convenience can be improved further.

  In the above configuration, the plate surface of the sound absorbing member 73 corresponds to the inclined surface portion. The inclination angle of the in-chamber passage 53 with respect to the passage direction of the inclined surface portion (the plate surface of the sound absorbing member 73) can be adjusted.

  (5) In the above embodiment, the fender member 57 is provided as the foreign matter intrusion preventing portion. However, the foreign matter intrusion preventing portion is a net-like filter that prevents foreign matters such as dust and dust from entering. There may be a case where a member or a lattice-like member for preventing a finger from being inserted into the rear side of the blowing chamber 33 is provided. Since these foreign matter intrusion prevention parts also have a large number of vent holes that allow the conditioned air to pass through, as with the fender member 57, wind noise is generated when the conditioned air passes through these vent holes. It is assumed that Therefore, even when a foreign matter intrusion prevention unit other than the fender member 57 is provided, it is possible to reduce wind noise by applying the sound absorbing structure of the present invention.

  (6) In the above embodiment, the sound absorbing structure of the present invention is applied to the air conditioning equipment 30 (corresponding to the blower equipment) that blows out the conditioned air generated by the air conditioner 31 from the air outlet 35 toward the living room 11. The present invention may be applied to equipment. For example, the sound absorbing structure of the present invention may be applied to a ventilation facility (corresponding to a blowing facility) that takes outside air from the outside and blows the outside air (corresponding to air) toward the living room 11 from the air outlet 35.

  DESCRIPTION OF SYMBOLS 10 ... Building, 11 ... Living room as indoor space, 30 ... Air conditioning equipment as ventilation equipment, 32 ... Air conditioning duct as ventilation duct, 33 ... Outlet chamber, 35 ... Outlet, 53 ... In-chamber passage as outlet passage, 57 ... a fender member as a foreign matter intrusion prevention part, 60A, 60B ... a sound absorbing member, 60e ... a side part as an inclined surface part, 62 ... an inclined passage part, 67 ... an inclined passage part, 68 ... a throttle passage part, 69 ... an expansion passage Department.

Claims (7)

An air outlet that blows out air- conditioned air toward the indoor space;
An air passage through which the conditioned air flows toward the outlet;
An air conditioner that generates the conditioned air and supplies the generated conditioned air to the air passage;
A plurality of ventilation holes through which the conditioned air passes, and a foreign matter intrusion prevention unit for preventing foreign matter from entering the back side of the air passage through the blowout port;
Applied to air conditioning equipment in buildings with
The foreign matter intrusion prevention portion is disposed at a position spaced apart from the outlet in the air passage toward the back of the passage,
A sound absorbing structure for an air conditioner, wherein a sound absorbing member is provided in the air passage closer to the air outlet than the foreign matter intrusion preventing portion. The air passage has an outlet passage that communicates with the outlet and extends in the opening direction of the outlet.
The sound absorbing member is provided in the blowing passage, and has an inclined surface portion that is inclined with respect to the opening direction that is a passage direction of the blowing passage.
In the blowing passage, the conditioned air flows along the inclined surface portion,
The sound absorbing members are respectively disposed at both ends in the passage width direction in the outlet passage,
Each of the sound absorbing members is disposed so that the inclined surface portions face each other in the passage width direction and are inclined in the same direction with respect to the passage direction,
2. The air conditioner according to claim 1 , wherein an inclined passage portion extending in a direction inclined with respect to the passage direction is formed between the inclined surface portions of the sound absorbing members in the blowout passage. Sound absorbing structure. The air passage has an outlet passage that communicates with the outlet and extends in the opening direction of the outlet.
The sound absorbing member is provided in the blowing passage, and has an inclined surface portion that is inclined with respect to the opening direction that is a passage direction of the blowing passage.
In the blowing passage, the conditioned air flows along the inclined surface portion,
The sound absorbing members are respectively disposed at both ends in the passage width direction in the outlet passage,
Each of the sound absorbing members is disposed so that the inclined surface portions face each other in the passage width direction and are inclined in opposite directions to the passage direction,
The inclined surface portions of the respective sound absorbing members are inclined so as to approach each other toward the air outlet side in the passage direction,
2. The air conditioning equipment according to claim 1 , wherein a narrowing passage portion that has a passage width that decreases toward the air outlet side is formed between the inclined surface portions of the sound absorbing members in the blowout passage. Sound absorption structure. The air passage has an outlet passage that communicates with the outlet and extends in the opening direction of the outlet.
The sound absorbing member is provided in the blowing passage, and has an inclined surface portion that is inclined with respect to the opening direction that is a passage direction of the blowing passage.
In the blowing passage, the conditioned air flows along the inclined surface portion,
The sound absorbing members are respectively disposed at both ends in the passage width direction in the outlet passage,
Each of the sound absorbing members is disposed so that the inclined surface portions face each other in the passage width direction and are inclined in opposite directions to the passage direction,
The inclined surface portions of the respective sound absorbing members are inclined so as to move away from each other toward the air outlet side in the passage direction,
2. The air conditioning equipment according to claim 1 , wherein an extended passage portion having a passage width that increases toward the air outlet side is formed between the inclined surface portions of the sound absorbing members in the blowout passage. Sound absorption structure. The air passage has an outlet passage that communicates with the outlet and extends in the opening direction of the outlet.
The sound absorbing member is provided in the blowing passage, and has an inclined surface portion that is inclined with respect to the opening direction that is a passage direction of the blowing passage.
In the blowing passage, the conditioned air flows along the inclined surface portion,
The sound absorbing members are respectively disposed at both ends in the passage width direction in the outlet passage,
The outlet passage is formed to have a rectangular passage cross section, and the passage width is defined by each passage end surface facing the passage width direction across the outlet passage,
Each of the sound absorbing members has a right triangular shape having a predetermined thickness, and the side surfaces on the hypotenuse side as the inclined surface portions are opposed to each other in the passage width direction and adjacent to the side surface portions. The side part of the side is placed in contact with the end face of the passage,
2. The air conditioner according to claim 1, wherein each of the sound absorbing members is detachably provided in the blowing passage, and can be reversed in a passage direction of the blowing passage. Sound absorption structure. A ventilation duct, and a blowout chamber connected to the ventilation duct;
The air passage is formed by the ventilation duct and the blowout chamber,
The blowout chamber has the blowout port and a blowout passage that is a part of the air passage and communicates with the blowout port.
The foreign matter intrusion prevention unit is provided at a connection portion between the ventilation duct and the blowing chamber,
The sound absorbing structure for an air conditioning facility according to any one of claims 1 to 5 , wherein the sound absorbing member is provided in the outlet passage. The air passage has an outlet passage that communicates with the outlet and extends in the opening direction of the outlet.
In the blowing passage, a plate-like sound absorbing member is provided so as to partition the blowing passage in the passage width direction,
The plate-like sound absorbing member is rotatable through a shaft portion extending in the passage height direction of the blowing passage, and the rotation angle of the plate-like sound absorbing member with respect to the passage direction of the blowing passage. The sound absorbing structure for an air conditioning facility according to any one of claims 1 to 6, wherein the sound absorbing structure is adjustable .

Images