JP5625212B2 - Air-conditioning blower - Google Patents

Description

  The present invention is an air-conditioning blowout device including a connection opening through which air-conditioning gas flows and a blow-out opening that blows inflow gas toward the air-conditioning target space, and in particular, air-conditioning gas blown into the air-conditioning target space It is related with the blowing apparatus for an air conditioning comprised so that change of the reach | attainment distance is possible.

  In a conventional air-conditioning blow-out device, an inner flow path located on the center line side of the communication path in a cylindrical duct that forms a linear communication path that connects the connection opening and the blow-off opening, and an outer periphery thereof A cylindrical inner cylinder that is partitioned into an annular outer flow channel located on the side is provided, and a circle is formed over an intermediate portion near the connection opening between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the duct. An annular closing plate having a large number of ventilation holes is provided at predetermined intervals in the circumferential direction, and each of the ventilation holes can be swingably opened and closed on the closing plate, and the outer flow at an inclination angle when opened. A number of damper blades that swirl and flow the gas flowing into the path along the circumferential direction are provided (for example, see Patent Document 1).

Utility Model Registration No. 3049595

In a conventional air-conditioning blow-out device, for example, during cooling in which cold air is used as an air-conditioning gas, a large amount of cold air has flowed into the inlet of the outer flow path by switching the numerous damper blades to a set opening angle. The damper blades generate a swirling airflow, and the cold air is blown out as a swirling airflow from the outlet of the outer flow path, and the cold air flowing in from the inlet of the inner flow path is blown out vertically as a straight airflow from the outlet of the inner flow path. .
Therefore, although the cold air blown out from the outlet of the outer channel is rapidly mixed and diffused into the indoor air staying near the ceiling, the reach of the cold air blown out as a vertical air stream from the outlet of the inner channel is Since it becomes long, a draft feeling may be generated immediately below the outlet.

  In addition, during heating in which warm air is used as the air conditioning gas, the outer flow path is shut off by switching the numerous damper blades to the fully closed state, and the entire amount of warm air that has flowed into the duct connection opening is transferred to the inner flow path. As the vertical airflow is blown out from the outlet of the airflow at a high flow rate, the warm air rapidly reaches the floor, but the range for taking in the warm air staying near the ceiling is narrowed.

  And in order to obtain the above-mentioned blowing pattern, in the narrow space between the outer peripheral surface of the inner cylinder and the inner peripheral surface of the duct, an annular shape having a number of ventilation holes at predetermined intervals in the circumferential direction. There is a problem in that the blowout structure is complicated because a closing plate, a large number of damper blades that open and close each ventilation hole, and an interlocking operation mechanism that interlocks and opens the numerous damper blades must be assembled.

  The present invention has been made in view of the above-described actual situation, and its main problem is that it is possible to easily present a blowing pattern suitable for each of cooling and heating, simplifying the blowing structure, and An object of the present invention is to provide an air-conditioning blowout device that can be easily manufactured.

The first characteristic feature of the present invention includes a blow box having a blowing opening for blowing out gas for air conditioning toward the air conditioning target space, provided in the outlet box, the center axis side interior space of the outlet box An inner cylinder that is partitioned into an inner channel positioned at the outer circumferential side and an annular outer channel positioned on the outer periphery thereof, an inlet that supplies gas to an upstream site of the inner channel, and an upstream site of the outer channel And an inlet for supplying gas in a state of being guided to flow in one direction along the outer peripheral surface of the inner cylinder, and the blowout box comprises a box body constituting a main part of the outer flow path, and the box And an attachment flange portion that extends outward from an end portion on the outlet opening side of the main body and is fixed to the wall surface of the building, and the box main body includes a pair of divided box bodies, The partition box body has a partition wall portion protruding from the inner surface defining the outer flow path toward the inner cylinder side, and a part of the outer surface in the circumferential direction of the inner cylinder and the partition wall portion are It exists in the state which is arrange | positioned in the state which contact | abuts , and it is set as the structure by which a rectilinear gas is blown out from the exit of the said inner side flow path, and the turning gas is blown out from the outlet of the said outer side flow path.

  According to the above configuration, for example, during cooling in which cold air is used as the air-conditioning gas, the blowing of the straight-ahead cold air from the outlet of the inner flow path is stopped, and the cold air is turned into the swirling air flow from the outlet of the outer flow path. By blowing out, whirling cold air blown from the outlet of the outer channel is rapidly mixed with a wide range of indoor air staying near the ceiling while avoiding the occurrence of a draft feeling directly under the blowout opening of the blowout box Can be diffused.

  Further, during heating in which warm air is used as the air-conditioning gas, for example, straight warm air is blown out as a vertical air flow from the outlet of the inner flow path, and swirling warm air is blown out as a swirl air flow from the outlet of the outer flow path. Accordingly, the warm air staying near the ceiling can be attracted and taken in by the swirling airflow, and a part of the swirling airflow including the taken-in warm air is blown out as a vertical airflow from the outlet of the inner flow path. Attracting and taking in, you can reach the floor along with the straight warmth that has a long reach.

  In addition, in obtaining the above-described blowing pattern, it is in one direction along the outer peripheral surface of the inner cylinder with respect to the upstream portion of one outer flow path defined by the inner cylinder provided in the blowing box. It is only necessary to form an inlet for supplying gas in the state of guiding the inflow.

  That is, the gas flowing into the inlet of the outer flow path flows to the outlet while naturally turning along the annular flow path formed between the inner surface of the blowing box and the outer peripheral surface of the inner cylinder. There is no need to assemble a large number of damper blades for generating a swirling airflow and an interlocking operation mechanism that opens and closes the multiple damper blades in the middle of the communication path as in the air-conditioning blowout device.

  Therefore, the blowing pattern suitable for each of cooling and heating can be easily displayed, and the blowing structure can be simplified and can be easily manufactured.

According to a second characteristic configuration of the present invention, a communication path that connects a connection opening through which air-conditioning gas flows and a blow-out opening that blows inflow gas toward the air-conditioning target space is connected to the central axis of the connection opening. a cylindrical chamber box and the opening of the central axis is bent in a state crossing, provided in the chamber box, located inside passage and its outer peripheral side is located the communication path to the central axis side A gas distribution section that is partitioned into an annular outer flow path and that forms an opening in a state in which the inlet of the inner flow path and the inlet of the outer flow path are eccentric to the connection opening in the flow path transverse direction. An inner cylinder, and the chamber box is fixed to the wall of the building by extending outward from an end of the box body on the outlet opening side of the box body that constitutes a main part of the communication path. Taken And the box body is composed of a pair of split box bodies, and the inner cylinder has a longitudinal partition along the central axis of the blowout opening and a horizontal along the central axis of the connection opening. A lateral partition body, wherein the lateral partition body is eccentric in the flow passage transverse direction with respect to the connection opening, and a part of the lateral partition body and an inner surface of the box body are It exists in the state which is arrange | positioned in the state which contact | abuts , and it is set as the structure by which a rectilinear gas is blown out from the exit of the said inner side flow path, and the turning gas is blown out from the outlet of the said outer side flow path.

  According to the above configuration, for example, during cooling in which cold air is used as the air-conditioning gas, the blowing of the straight-forward cold air from the outlet of the inner channel is stopped, and the cold air flowing into the connection opening of the chamber box is outside By blowing out as a swirling airflow from the outlet of the flow path, while avoiding the occurrence of a draft feeling just below the blowout opening of the chamber box, a wide range of swirling cold air blown out from the outlet of the outer flow path stays near the ceiling. It can be rapidly mixed and diffused with room air.

  Further, during heating in which warm air is used as the air-conditioning gas, for example, straight warm air is blown out as a vertical air flow from the outlet of the inner flow path, and swirling warm air is blown out as a swirl air flow from the outlet of the outer flow path. Accordingly, the warm air staying near the ceiling can be attracted and taken in by the swirling airflow, and a part of the swirling airflow including the taken-in warm air is blown out as a vertical airflow from the outlet of the inner flow path. Attracting and taking in, you can reach the floor along with the straight warmth that has a long reach.

  Moreover, in order to obtain the blowout pattern as described above, an inner flow formed by an inner cylinder for gas distribution disposed in the communication path is formed using a communication path bent in the chamber box. It is only necessary to form the opening in the state in which the inlet of the passage and the inlet of the outer flow path are eccentric in the direction transverse to the flow path with respect to the connection opening of the chamber box.

  That is, of the gas that flows into the connection opening of the chamber box, the gas that flows into the inlet of the outer flow path that is eccentric in the direction transverse to the flow path with respect to the connection opening is the inner surface of the chamber box and the inner cylinder for gas distribution. Since it flows to the outlet while naturally swirling along the annular flow path formed between the outer peripheral surface of the air-conditioner, a number of damper blades for generating a swirling airflow, like a conventional air-conditioning blowout device, It is not necessary to assemble an interlocking operation mechanism that opens and closes a large number of damper blades in the middle of the communication path.

  Therefore, the blowing pattern suitable for each of cooling and heating can be easily displayed, and the blowing structure can be simplified and can be easily manufactured.

According to a third characteristic configuration of the present invention, an engagement groove is provided on the inner surface of the box body, and an engagement piece that engages with the engagement groove is provided at a distal end portion of the lateral partition. In the point.

According to a fourth characteristic configuration of the present invention, the lateral partition is formed in an upward U-shape including a bottom wall portion and a pair of side wall portions at both ends of the bottom wall portion, and a pair of the divided box bodies. The engagement groove is provided on the lower surface of the inner surface on the connection opening side and the side surface of the inner surface on the connection opening side in either one of the pair of split box bodies, and any of the pair of side wall portions The engaging piece is provided at one of the tip and the tip of the bottom wall.

According to a fifth characteristic configuration of the present invention, there is provided an air volume ratio adjusting means for adjusting an air volume ratio between a straight gas blown from the outlet of the inner flow path and a swirling gas blown from the outlet of the outer flow path. There is in point.

  According to the above configuration, the air volume ratio adjusting means adjusts the air volume ratio between the straight gas blown from the outlet of the inner flow path and the swirling gas blown from the outlet of the outer flow path, thereby cooling and heating. A blowing pattern suitable for each of the above can be displayed.

A sixth characteristic configuration according to the present invention is that the chamber box is made of a heat insulating material made of foamed resin.

  According to the above configuration, the chamber box, which is the outer shell of the air-conditioning blow-out device, is made of a heat insulating material made of foamed resin, thereby reducing condensation while reducing installation work at the construction site and eliminating the need for heat treatment. Can be prevented.

According to a seventh characteristic configuration of the present invention, a plate-like attachment member that fixes the inner cylinder to a predetermined attachment position of the communication path is provided at a specific portion between the inner surface of the chamber box and the outer peripheral surface of the inner cylinder. The plate surface is constructed in a state of being set at an inclination angle along or substantially along the set turning angle of the swirling gas swirling and flowing in the outer flow path.

  According to the above configuration, the plate surface of the mounting member for fixing the inner cylinder at a predetermined mounting position in the communication path of the chamber box is used to guide the swirling gas swirling and flowing in the outer flow path at a set swirling angle. Therefore, the swirling airflow in the outer flow path can be stabilized.

An eighth characteristic configuration according to the present invention lies in that a throttle tube portion having a smaller cross-sectional area on the inner peripheral surface side toward the outlet side is formed at the outlet side portion of the inner tube.

  According to the above configuration, the flow velocity of the straight gas flowing along the inner flow path in the inner cylinder becomes faster when passing through the throttle cylinder, for example, in heating when warm air is used as an air conditioning gas. The reach of the straight warm air blown out as the vertical gas from the outlet of the inner flow path can be extended.

A ninth characteristic configuration according to the present invention is that the air volume ratio adjusting means is provided with a first opening adjusting member for adjusting an opening area of an outlet of the inner flow path.

  According to the above configuration, by adjusting the opening area of the outlet of the inner channel with the first opening adjusting member, the straight gas blown from the outlet of the inner channel and the outlet of the outer channel are blown out The air volume ratio with the swirling gas can be changed, and the first opening adjusting member can be easily operated from the air conditioning target space side.

A tenth characteristic configuration according to the present invention is that the air volume ratio adjusting means includes a second opening adjusting member for adjusting an opening area of an inlet of the inner flow path.

  According to the above configuration, the straight opening gas blown from the outlet of the inner channel and the outlet of the outer channel are blown by adjusting the opening area of the inlet of the inner channel with the second opening adjusting member. The air volume ratio with the swirling gas can be changed, and the structure on the outlet side of the inner flow path can be simplified.

According to an eleventh characteristic configuration of the present invention, the first opening adjustment member is rotatably arranged on the inner flow path side of the blowing plate provided on the outlet side of the inner flow path, and the first opening adjustment member includes A plurality of vent holes and hole closing portions for switching the blow holes formed at a plurality of locations in the circumferential direction of the blow plate from the fully open state to the fully closed state along with the rotation; On the side surface on the upstream side in the gas flow direction, there is formed a branching projection provided with a pair of branching guide surfaces for branching and guiding the straightly traveling gas flowing along the inner flow path to both adjacent vent holes.

  According to the above configuration, the opening area of the plurality of blowing holes of the blowing plate can be switched from the fully open state to the fully closed state by the rotation of the first opening adjusting member disposed on the inner flow path side of the blowing plate. In addition, at the time of opening operation in which straight gas is blown out from the outlet of the inner flow path, by the both diversion guide surfaces of the diversion protrusions formed on the side surface on the upstream side in the gas flow direction in each hole closing portion of the first opening adjustment member, The straight gas flowing along the inner flow path can be smoothly diverted to both adjacent vent holes, and the blowing resistance at the outlet of the inner flow path can be reduced.

In the air-conditioning blowout apparatus according to the present invention, the blowout box provided with the blowout opening for blowing the air-conditioning gas toward the air-conditioning target space, and the inner flow path located on the central axis side of the blowout box internal space An inner cylinder is formed in a ring-shaped outer flow path positioned on the outer peripheral side thereof, and an inlet for supplying gas to the upstream portion of the inner flow path, and the inner side with respect to the upstream portion of the outer flow path An inlet for supplying gas in a state where it flows in and guides in one direction along the outer peripheral surface of the cylinder, and a straight gas is blown from the outlet of the inner flow path, and a swirling gas is blown from the outlet of the outer flow path A first opening adjusting member that adjusts the opening area of the outlet of the inner channel, and a rectilinear gas blown from the outlet of the inner channel and a swirling gas blown from the outlet of the outer channel Air volume with An air volume ratio adjusting means for adjusting the rate is provided, and the first opening adjusting member is rotatably arranged on the inner flow path side of the blowout plate provided on the outlet side of the inner flow path, and the first opening. The adjustment member is formed with a plurality of ventilation holes and hole closing portions for switching the blowing holes formed at a plurality of locations in the circumferential direction of the blowing plate with the rotation from the fully open state to the fully closed state, On the side surface on the upstream side in the gas flow direction of the hole closing portion, a diverting projection having a pair of diversion guide surfaces for diverting and guiding the straightly moving gas flowing along the inner flow path to both adjacent vent holes is formed. Also good.

Further, in the air-conditioning blowout device according to the present invention, the communication passage that communicates the connection opening through which air-conditioning gas flows and the blow-out opening that blows inflowing gas toward the air-conditioning target space is a central axis of the connection opening. In a cylindrical chamber box that is bent so that the central axis of the blowout opening intersects the inner flow path located on the central axis side of the communication path and the annular outer flow located on the outer peripheral side thereof A gas distribution inner cylinder is provided that is partitioned into a channel and that forms an opening in a state in which the inlet of the inner channel and the inlet of the outer channel are eccentric in the channel transverse direction with respect to the connection opening. And a straight opening gas is blown out from the outlet of the inner channel, and a swirling gas is blown out from the outlet of the outer channel, and a first opening adjusting member for adjusting the opening area of the outlet of the inner channel And the outlet of the inner flow path An air volume ratio adjusting means for adjusting an air volume ratio between a straight gas blown out from the gas and a swirling gas blown out from the outlet of the outer channel is provided, and the first opening adjusting member is an outlet of the inner channel. The first opening adjustment member is provided with a plurality of outlet holes formed in a plurality of circumferential directions of the outlet plate in accordance with the rotation from the fully open state to the fully closed state. A plurality of ventilation holes and a hole closing part for switching to the state are formed, and the straight gas flowing along the inner flow path is adjacent to the side surface of each hole closing part on the upstream side in the gas flow direction A diverting projection provided with a pair of diverting guide surfaces for diverting and guiding both the air holes may be formed.

Exploded perspective view of a blowout device for air conditioning showing a first embodiment of the present invention Horizontal sectional view of the air blower connected to the air conditioning duct Sectional view along line III-III in Fig. 2 Sectional view along line IV-IV in Fig. 2 Side view of the inner side of both split box bodies of the chamber box Longitudinal sectional view of both split box bodies of chamber box Plan view (a), front view (b) and side view (c) of inner cylinder for gas distribution Exploded sectional view of air volume ratio adjustment means The top view (a) which becomes the inner surface of the blowing plate and the bottom view (b) which becomes the outer surface The bottom view (a) used as the outer surface of the 1st opening adjustment member, and its Xb-Xb sectional view (b) Bottom view (c) which becomes an outer side surface which respectively shows the full open operation mode (a), the intermediate open operation state (b), and the full close operation state of the air volume ratio adjusting means. Horizontal sectional view of a blowout device for air conditioning showing a second embodiment of the present invention Horizontal sectional view of a blowout device for air conditioning showing a third embodiment of the present invention XIV-XIV line cross section in FIG.

[First Embodiment]
FIGS. 1-11 shows the air-conditioning blowing apparatus arrange | positioned in the ceiling. In this air-conditioning blow-out device, a circular connection opening 1 to which an air-conditioning duct D for supplying air-conditioning air, which is an air-conditioning gas, is connected, and the air-conditioning air that has flowed into the room is an air-conditioning target space. A cylindrical chamber box A, which is an example of a blowout box having a circular blowout opening 2 blown downward toward the space (perpendicular to the blowout surface), is provided, and the connection opening is provided in the chamber box A. The communication passage W that communicates 1 and the blowout opening 2 is bent in an L shape in a state where the central axis X of the connection opening 1 and the central axis Y of the blowout opening 2 are orthogonal (an example of a cross).

The chamber box A is partitioned into an inner flow path W1 located on the central axis side of the communication path W and an annular outer flow path W2 located on the outer peripheral side thereof, and the inner flow path An inner side for gas distribution in which an inlet W1a of W1 and an inlet W2a of the outer flow path W2 are formed to be eccentric with respect to the connection opening 1 in a horizontal direction and a vertical direction that are in the flow path transverse direction (diameter direction). A cylinder (hereinafter referred to as an inner cylinder for gas distribution) B is provided, and straight air (straight gas) blown from the outlet W1b of the inner flow path W1 is provided on the side of the blowout opening 2 of the chamber box A. ) And air volume ratio adjusting means C for adjusting the air volume ratio of the swirling air (swirl gas) blown out from the outlet W2b of the outer flow path W2 by manual operation.

  As shown in FIGS. 1 to 5, the chamber box A has a cylindrical shape in which an L-shaped box body 3 constituting a main part of the communication path W and the air conditioning duct D are connected in an externally fitted state. A connecting cylinder portion 4, a mounting flange 7 fixed on the back surface (upper surface) of the ceiling wall 5 with a screw 6 or the like, and a positioning cylinder portion fitted into a through hole 5 a formed in the ceiling wall 5. 8 is integrally molded with a heat insulating material made of foamed resin such as polypropylene (PP) foam that is lightweight and excellent in heat insulating performance.

  In this way, by forming the chamber box A, which is the outer shell of the air-conditioning blowout device, from the heat insulating material made of foamed resin, condensation is prevented while reducing installation work at the construction site and eliminating the need for heat insulation processing. be able to.

  The chamber box A is composed of a pair of divided box bodies A1 and A2 that are divided into two by a dividing plane that passes through the central axis X of the connection opening 1 and the central axis Y of the blowout opening 2. On the joining surfaces of the bodies A1 and A2, a joining protrusion 10 and a joining groove 11 are formed which are fitted from a direction orthogonal to the dividing surface and maintain the fitting state mainly by frictional force. ing.

  The inner peripheral surface 12 of the chamber box A is largely divided into a front-half-side inner peripheral surface along the central axis X of the connection opening 1 and a rear-half-side inner peripheral surface 12D along the central axis Y of the blow-off opening 2. The side inner peripheral surface gradually deviates toward the first inner peripheral surface 12A that forms the connection opening 1 and one side in the horizontal direction along the flow path transverse direction with respect to the central axis X of the connection opening 1 and upward. A second inner peripheral surface 12B that forms a throttle passage in which the cross-sectional area of the flow path decreases in the state, and a third inner peripheral surface that continues to the rear-half inner peripheral surface 12D at the maximum flow path throttle position of the second inner peripheral surface 12B 12C.

  As shown in FIG. 3, the second inner peripheral surface 12B has a throttle lower surface 12a inclined so as to approach the central axis X of the connection opening 1 toward the downstream side, and an inlet of the inner flow path W1 as shown in FIG. In a state continuous with W1a, a throttle side surface 12b is formed in an inclined posture that approaches the central axis X of the connection opening 1 toward the downstream side.

  The cross-sectional area of the rear-side inner peripheral surface 12D is configured to be slightly larger than the cross-sectional area of the first inner peripheral surface 12A by the amount that the gas distribution inner cylinder B is installed, and the inner flow path W1. The cross-sectional area of the third inner peripheral surface 12C through which the inlet W1a and the inlet W2a of the outer flow path W2 open is configured to be smaller than the cross-sectional area of the first inner peripheral surface 12A.

  As shown in FIG. 2, the central axis X1 of the inlet W1a of the inner flow path W1 is slightly eccentric to the other side in the horizontal direction along the flow path transverse direction with respect to the central axis X of the connection opening 1, Further, the central axis X2 of the inlet W2a of the outer flow path W2 is configured to be slightly eccentric to one side in the horizontal direction along the flow path transverse direction with respect to the central axis X of the connection opening 1. .

  In other words, the central axis X1 of the inlet W1a of the inner flow path W1 is arranged near the central axis X of the connection opening 1 although it is eccentric to the other side in the horizontal direction along the flow path transverse direction. While ensuring the straightness of the air-conditioning air flowing in from the inlet W1a of the inner flow path W1, the central axis X2 of the inlet W2a of the outer flow path W2 is at a position distant from one side in the radial direction along the horizontal direction. It arrange | positions and it is comprised so that the air for an air conditioning which flowed in from the inlet W2a of this outer side flow path W2 may flow in from the tangential direction with respect to the upper part of cylindrical inner peripheral surface 12D.

  Therefore, the air-conditioning air that has flowed in from the inlet W2a of the outer flow path W2 flows in a tangential direction with respect to the upper portion of the cylindrical second-half inner circumferential surface 12D, and the second-half inner circumferential surface 12D of the chamber box A and the gas It flows to the outlet W2b while turning naturally smoothly along the annular outer flow path W2 formed between the outer peripheral surface of the inner cylinder B for distribution.

  As shown in FIGS. 1 and 5, the throttle lower surface 12a is formed in a straight line in the horizontal direction along the channel crossing direction at the maximum channel throttle position, and the throttle side surface 12b It is formed in a straight line along the vertical direction at the position.

  As shown in FIGS. 1 and 7, the gas distribution inner cylinder B is connected to the cylindrical vertical partition 15 along the central axis Y of the blowout opening 2 and to the upper end of the vertical partition 15. A transverse section 16 having an upward U-shaped cross section continuously provided in a posture along the central axis X of the opening 1 is made of a foamed resin such as a polypropylene (PP) foam that is lightweight and has excellent heat insulation performance. It is formed by integrally molding with a heat insulating material.

  As shown in FIG. 2, the width between the opposing inner side surfaces of the pair of side wall portions 16 </ b> A and 16 </ b> B constituting the lateral partition 16 is a width of the longitudinal partition 15. The horizontal partition 16 is configured to be smaller than the inner diameter, and the horizontal partition 16 is in the horizontal direction along the flow passage transverse direction with respect to the central axis of the vertical partition 15 (same as the central axis Y of the blowout opening 2). It is integrally formed in a state biased to the other side.

  Moreover, as shown in FIGS. 1-3, FIG. 7, among the side wall portions 16A and 16B of the lateral partition 16, the side wall portion 16B located on the other side in the horizontal direction along the flow passage transverse direction. A first engagement formed on the lower surface of the third inner peripheral surface 12C of both divided box bodies A1 and A2 is provided at the front end and the front end of the bottom wall portion 16C provided continuously to the lower ends of the side wall portions 16A and 16B. The first engagement piece 16D that engages with the groove 17 from the direction orthogonal to the division surface, and the second engagement formed on the side surface of the third inner peripheral surface 12C of the division box body A2 on the other side. A second engaging piece 16E that engages with the groove 18 from a direction orthogonal to the dividing surface is integrally formed.

  A first engagement groove 16 formed on the lower surface of the third inner peripheral surface 12C of each of the divided box bodies A1 and A2 has a first engagement piece 16D formed at the tip of the bottom wall portion 16C of the lateral partition 16. And the second engagement piece 16E of the side wall portion 16B is engaged with the second engagement groove 18 formed on the side surface of the third inner peripheral surface 12C of the other divided box body A2. In this state, since the gap between the tip of the lateral partition 16 and the third inner peripheral surface 12C is cut off, the flow direction of the air-conditioning air flowing into the inlet W2a from the connection opening 1 is changed to the inner cylinder B. It restricts to the one-way swirling flow along the outer peripheral surface.

  As shown in FIGS. 1 and 3 on the lower side of the vertical partition 15 near the outlet opening 2, the cross-sectional area on the inner peripheral surface side becomes smaller toward the outlet W1b side of the inner flow path W1. In other words, the throttle cylinder portion 15A having a small inner diameter and a one-stage small diameter in a state continuous to the minimum outer diameter portion of the throttle cylinder portion 15A, and the outlet portion W1b and the outer flow channel W2 of the inner flow path W1. Of the blowout plate 25 made of synthetic resin, such as ABS resin, provided at the outlet W2b, the location corresponding to the boundary between the inner flow path W1 and the outer flow path W2 on the inner surface (upper surface) on the upstream side in the flow direction of air conditioning air A connecting tube portion 15B is formed so as to be fitted into a cylindrical fitting tube portion 25A projecting from the tube.

  As shown in FIGS. 1 and 3, the upper portion of the vertical partition 15 of the gas distribution inner cylinder B is formed on the ceiling surface of the bent portion on the inner surfaces of the two divided box bodies A1 and A2. It is comprised in the fitting part 15C fitted in the attitude | position which follows the central axis Y of the blowing opening 2 with respect to the recessed part 20, and closes the upper opening of the upper part of the said vertical direction division body 15, and both said division | segmentation Two locations that are 180 degrees deviated in the circumferential direction of the opposing portions of the fitting recesses 20 of the box bodies A1 and A2 and the outer peripheral surface of the fitting portion 15C of the longitudinal partition 15 are in relation to the dividing surface. Engagement recesses 21 and engagement protrusions 22 that are engaged from directions orthogonal to each other are formed.

  As shown in FIGS. 6 and 7, the bottom surface of the engagement recess 21 and the lower surface of the engagement protrusion 22 are formed on an inclined surface that is positioned upward as it extends radially outward. The mating protrusion 22 is configured to closely fit with the wedge effect.

  Further, as shown in FIGS. 1 and 4 to 7, in the circumferential direction between the rear inner peripheral surface 12 </ b> D of the chamber box A and the outer peripheral surface of the longitudinal partition 15 of the gas distribution inner cylinder B. Plate-shaped attachment members 23 for fixing the vertical partition 15 of the gas distribution inner cylinder B to the predetermined attachment positions of the communication passage W are provided at two positions that are biased by 180 degrees. 23b is installed in a state where it is set at an inclination angle along or substantially along the set turning angle of the turning air that swirls and flows in the outer flow path W2.

  Therefore, both the plate surfaces 23a and 23b of the mounting member 23 for fixing the gas distribution inner cylinder B at a predetermined mounting position in the communication path W of the chamber box A are swirled in the outer flow path W2. Since the air can be configured as a guide surface for guiding the flow at the set turning angle, the turning air can be stabilized in the outer flow path W2.

  As shown in FIG. 7, the mounting member 23 is integrally formed at two locations on the outer peripheral surface of the longitudinal partition 15 of the gas distribution inner cylinder B, and is divided into both divided box bodies A1, A2. As shown in FIGS. 4 and 6, a second engagement recess 24 is formed on the inner peripheral surface 12 </ b> D of the rear half side of the rear end of the mounting member 23 from the direction orthogonal to the dividing surface. ing.

  Both plate surfaces 23a and 23b of the mounting member 23 are formed in arcuate surfaces where the center position in the flow direction of the swirling air is the thickest and both ends in the flow direction of the swirling air are the thinnest.

  Also, as shown in FIGS. 3, 8, and 9, the opening width in the circumferential direction is increased toward the outer side in the radial direction at a plurality of portions in the circumferential direction corresponding to the outlet portion W1b of the inner flow path W1 in the blowing plate 25. Is formed, and the first blow-out holes 26 that recede to the downstream side in the swirling direction of the swirling air are formed, and at a plurality of locations in the circumferential direction and the radial direction of the portion corresponding to the outlet W2b of the outer flow path W2. Is formed with a second blow-out hole 27 that recedes toward the downstream side in the swirling direction of the swirling air toward the outer side in the radial direction.

  As shown in FIGS. 8 and 10, the air volume ratio adjusting means C switches the first air outlet 26 of the air outlet plate 25 from the fully open state to the fully closed state by a rotation operation around the central axis Y of the air outlet 2. For this purpose, a disk-shaped first opening adjusting member 29 in which a plurality of vent holes 29A and hole closing portions 29B are alternately formed in the circumferential direction is provided, and the flow direction of the straight air in the first opening adjusting member 29 is downstream. A rotating operation shaft 30 that protrudes toward the indoor space through a mounting hole 28 formed at the center position of the blowing plate 25 is integrally formed with a synthetic resin such as ABS resin at the center position on the lower surface side that is the side.

  At a plurality of locations (three locations in the embodiment) in the circumferential direction on the inner circumferential surface of the fitting cylinder portion 25A of the blowing plate 25, the top surface of the outer peripheral frame 29C of the first opening adjusting member 29 is in contact with or close to the top surface. A locking claw 31 that prevents the first opening adjusting member 29 from being moved upward is integrally formed, and at the upstream side in the gas flow direction of each hole closing portion 29B of the first opening adjusting member 29. On the side surface, a diverting projection 29D having an inverted V-shaped cross section is integrally provided with a pair of diverting guide surfaces 29a for diverting and guiding straight air flowing along the inner flow path W1 to both adjacent vent holes 29A. Is formed.

  Then, during cooling in which cold air is used as the air-conditioning gas, as shown in FIG. 11C, the first opening adjusting member 29 is provided with the first blowout of the blowout plate 25 at each hole closing portion 29B. By rotating the hole 26 in a fully closed state, the blowout of the straight forward cold air from the outlet W1b of the inner flow path W1 is stopped, and all the cold air flowing into the connection opening 1 of the chamber box A is passed through the outer flow path W2. By blowing out as a swirling airflow from the outlet W2b, the swirling cold air blown out from the outlet W2b of the outer flow path W2 stays in the vicinity of the ceiling while avoiding the occurrence of a draft feeling immediately below the blowing opening 1 of the chamber box A. It can be rapidly mixed and diffused over a wide range of room air.

  Further, during heating in which warm air is used as the air-conditioning gas, for example, as shown in FIG. 11A, the first opening adjusting member 29 is fully opened in the first blowing hole 26 of the blowing plate 25. Rotating to the top, the straight warm air is blown downward as a vertical air flow from the outlet W1a of the inner flow path W1, and at the same time, the swirl warm air is blown as a swirl air current from the outlet W2b of the outer flow path W2, thereby staying near the ceiling The warm air to be drawn can be attracted and taken in by the swirl airflow, and the reach distance of the straight warm air blown downward as the vertical airflow from the outlet W1b of the inner flow path W1 is extended, so that the warm air easily reaches the floor.

  Further, as shown in FIG. 11 (b), by adjusting the opening area of the first blow hole 26 of the blow plate 25, the straight warm air blown from the outlet W1b of the inner flow path W1 and the outer flow path. The air volume ratio with the swirling warm air blown from the outlet W2b of W2 can be changed, and the reach distance of the vertical warm air blown downward from the outlet W1b of the inner flow path W1 can be changed.

[Second Embodiment]
In the first embodiment described above, the air volume ratio adjusting means C is configured by the first opening adjusting member 29 that adjusts the opening area of the outlet W1b of the inner flow path W1, but as shown in FIG. You may comprise from the 2nd opening adjustment member 32 which adjusts the opening area of the inlet W1a of the flow path W1.

The second opening adjusting member 32 is a side wall portion 16A located on one side in the horizontal direction along the flow passage transverse direction, of the both side wall portions 16A, 16B of the transverse partition 16 of the gas distribution inner cylinder B. A posture along the central axis X of the connection opening 1 from the state where the inlet W1a of the inner flow path W1 is fully closed by swinging around the longitudinal axis parallel to the central axis Y of the blowout opening 2 Thus, it is configured to be able to switch to a state where the inlet W1a is fully opened.
In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[Third Embodiment]
FIG. 13 and FIG. 14 show another embodiment of the air-conditioning blowout device disposed in the ceiling. This air-conditioning blow-out device includes a circular blow-off opening 2 that blows air-conditioning air, which is an air-conditioning gas, downward (perpendicular to the blow-out surface) toward an indoor space that is a space to be air-conditioned A cylindrical or box-shaped blowing box A is provided.

  In this blowing box A, an inner cylinder B that partitions and forms the inner space of the blowing box A into an inner flow path W1 located on the central axis side and an annular outer flow path W2 located on the outer peripheral side thereof, An inlet W1a that is provided in a state of penetrating the ceiling wall portion of the blowout box A, and supplies air for air conditioning to an upstream portion of the inner flow path W1, and an inner portion of the inner cylinder B with respect to an upstream portion of the outer flow path W2. Supplying air-conditioning air in a state where it flows and guides in one direction along the outer peripheral surface, in other words, an inlet for supplying air-conditioning air in a state where the swirl flow direction is regulated in one direction along the outer peripheral surface of the inner cylinder B W2a is provided, and on the side of the blowout opening 2 of the blowout box A, straight air (straight gas) blown from the outlet W1b of the inner flow path W1 and blowout from the outlet W2b of the outer flow path W2 Swirling air ( An air volume ratio adjusting means C is provided for adjusting the air volume ratio with the swirling gas by human operation.

  As shown in FIG. 14, in the outer flow path W2 formed in the blowing box A, the central axis of the inlet W2a and the central axis of the outlet W2b (which is also the central axis of the blowing opening 2) are orthogonal in a side view. It is bent and formed in an L shape in the state of (intersection example).

  The inner peripheral surface 12 of the blowout box A is composed of a front-half inner peripheral surface 12E along the central axis of the inlet W2a and a rear-half inner peripheral surface 12F along the central axis of the blowout opening 2. The side inner peripheral surface 12E is formed in a state of being biased to one side in the horizontal direction along the flow passage transverse direction with respect to the central axis of the rear half inner peripheral surface 12F in the horizontal sectional view of FIG.

  The front half inner peripheral surface 12E corresponds to the inlet W2a on the outer peripheral surface of the inner cylinder B so that the air for air conditioning flowing into the inlet W2a swirls in one direction along the outer peripheral surface of the inner cylinder B. A partition wall portion 35 is formed to block the upper portion of the swirl flow direction, and air conditioning air flowing into the inlet W2a is formed on the inner surface 12F of the rear half on the inner surface of the partition wall portion 35. A flow guide surface 35a is formed for flow guide in a tangential direction of the annular channel (also a tangential direction of the outer peripheral surface of the inner cylinder B) or a direction close thereto.

  In addition, since the other structure is the same as the structure demonstrated in 1st Embodiment, the same number is attached to the same structure location as 1st Embodiment, and the description is abbreviate | omitted.

[Other Embodiments]
(1) In the first embodiment described above, the air volume ratio adjusting means C is blown from the straight air (straight gas) blown from the outlet W1b of the inner flow path W1 and the outlet W2b of the outer flow path W2. The air volume ratio with the swirling air (swirl gas) is configured to be adjusted manually. However, the present invention is not limited to this configuration. For example, the air volume ratio between the straight air and the swirling air is set based on a temperature sensor or the like. Control means for automatically changing may be provided.

  (2) In the first embodiment described above, the first air outlet 26 of the outlet plate 25 can be adjusted steplessly over the entire range from the fully closed state to the fully open state by the air volume ratio adjusting means C. The first blowout hole 26 may be configured to be stepwise adjustable in three or more stages in a range from a fully closed state to a fully open state, and the first blowout hole 26 may be in a fully closed state and a fully open state. It may be configured to be switchable between two states.

(3) In the first embodiment described above, the chamber box A is divided into two by a dividing plane passing through the central axis X of the connection opening 1 and the central axis Y of the blowout opening 2, but this chamber box A is arbitrarily divided. You may divide into three or more by a position.
Further, the chamber box A may be formed as a single piece without being divided.

  (4) When the gas distribution inner cylinder B is provided in the chamber box A, a straight air flow is generated in the inner flow path W1 located on the central axis side of the communication path W, and an annular ring located on the outer peripheral side thereof. In the range where the swirling airflow is generated in the outer flow path W2, the eccentric state of the inlet w1a of the inner flow path W1 and the inlet W2a of the outer flow path W2 with respect to the connection opening 1 in the cross-flow direction is appropriately changed. Can do.

  (5) In the first embodiment described above, the chamber box A and the gas distribution inner cylinder B are made of a heat insulating material made of foamed resin such as polypropylene foam, but are made of a resin material or a metal material other than the foamed resin. May be.

  (6) In the first embodiment described above, the air-conditioning blowing device is disposed in the ceiling, but may be disposed in a wall or the like.

A Blowout box (chamber box)
A1 Divided box body A2 Divided box body B Inner cylinder (inner cylinder for gas distribution)
C Air volume ratio adjusting means W Communication passage W1 Inner flow path W1a Inlet W1b Outlet W2 Outer flow path W2a Inlet W2b Outlet X Center axis line Y of connection opening 1 Center axis line 1 of discharge opening 2 Opening opening 15A Aperture cylinder part 15C Fitting part 20 fitting recess 21 engaging recess 22 engaging projection 23 mounting member 23a plate surface 23b plate surface 25 blowing plate 26 blowing hole (first blowing hole)
29 1st opening adjustment member 29A Vent hole 29B Hole closing part 29D Dividing protrusion 29a Dividing guide surface 32 2nd opening adjusting member

Claims (11)

A blow-out box having a blow-out opening for blowing air-conditioning gas toward the air-conditioning target space;
Wherein provided on the outlet box, and an inner tube which partitions formed on an annular outer flow path located inside passage and its outer peripheral side is located the interior space of the blowing boxes to the central axis side,
An inlet for supplying gas to an upstream portion of the inner flow path;
An inlet for supplying gas in a state of flowing and guiding in one direction along the outer peripheral surface of the inner cylinder with respect to the upstream part of the outer channel ,
The blowing box includes a box main body that constitutes a main part of the outer flow path, a mounting flange portion that extends outward from an end portion on the blowing opening side of the box main body and is fixed to a wall surface of a building. Have
The box main body includes a pair of divided box bodies, and has a partition wall portion in which any one of the divided box bodies protrudes from the inner surface defining the outer flow path toward the inner cylinder side,
Arranged in a state where a part of the outer surface of the inner cylinder in the circumferential direction is in contact with the partition wall,
A blower for air conditioning configured such that straight gas is blown from the outlet of the inner flow path and swirl gas is blown from the outlet of the outer flow path. In a state in which the communication channel that connects the connection opening through which the air-conditioning gas flows and the blow-out opening that blows inflow gas toward the air-conditioning target space intersects the central axis of the connection opening and the central axis of the blow-off opening a cylindrical chamber box being bent,
Wherein provided in the chamber box, said communicating passage is partitioned and formed in the inner channel and the outer channel of annular positioned to that of the outer peripheral side in the center axis side, and the inlet and the outer flow of the inner passage An inner tube for gas distribution that forms an opening in a state in which the inlet of the passage is eccentric to the connection opening in a direction transverse to the flow path with respect to the connection opening ,
The chamber box includes a box main body that constitutes a main part of the communication path, a mounting flange that extends outward from an end of the box main body on the outlet opening side and is fixed to a wall surface of a building, Have
The box body is composed of a pair of divided box bodies,
The inner cylinder has a vertical partition along the central axis of the outlet opening, and a horizontal partition along the central axis of the connection opening,
In a state where the lateral partition is eccentric in the flow passage transverse direction with respect to the connection opening, the lateral partition is disposed in a state where a part of the outer surface of the lateral partition is in contact with the inner surface of the box body,
A blower for air conditioning configured such that straight gas is blown from the outlet of the inner flow path and swirl gas is blown from the outlet of the outer flow path. The blowout device for air conditioning according to claim 2, wherein an engagement groove is provided on an inner surface of the box body, and an engagement piece that engages with the engagement groove is provided at a distal end portion of the lateral partition. . The lateral partition is formed in an upward U-shape consisting of a bottom wall part and a pair of side wall parts at both ends of the bottom wall part,
The engagement groove is provided on the lower surface of the inner surface on the connection opening side in the pair of split box bodies and the side surface of the inner surface on the connection opening side in one of the pair of split box bodies, The air-conditioning blowout device according to claim 3, wherein the engagement piece is provided at one of the side wall portions and the front end portion of the bottom wall portion. Claim 1-4 where the air volume ratio adjusting means is provided for adjusting the air volume ratio of turning the gas blown out from the outlet of the outer flow path and the straight gas blown out from the outlet of the inner channel 1 The air-conditioning blowout device according to Item . The blowout device for air conditioning according to any one of claims 2 to 4, wherein the chamber box is made of a heat insulating material made of foamed resin. A plate-like mounting member that fixes the inner cylinder at a predetermined mounting position of the communication path is provided at a specific portion between the inner surface of the chamber box and the outer peripheral surface of the inner cylinder. The air-conditioning blowout device according to claim 2 , 3, 4, or 6 , wherein the air-conditioning blower is installed in a state of being set to an inclination angle along or substantially along a set turning angle of the swirling gas swirling and flowing inside. The blowout device for air conditioning according to any one of claims 1 to 7, wherein a throttle tube portion having a smaller cross-sectional area on the inner peripheral surface side toward the outlet side is formed at an outlet side portion of the inner tube. The air-conditioning blowout device according to claim 5, wherein the air volume ratio adjusting means includes a first opening adjusting member that adjusts an opening area of an outlet of the inner flow path. The air-conditioning blowout device according to claim 5, wherein the air volume ratio adjusting means includes a second opening adjusting member that adjusts an opening area of an inlet of the inner flow path. The first opening adjusting member is rotatably arranged on the inner flow path side of the blowing plate provided on the outlet side of the inner flow path, and the first opening adjusting member is arranged in the circumferential direction of the blowing plate with rotation. A plurality of ventilation holes and a hole closing portion for switching the blowout holes formed at a plurality of locations from a fully open state to a fully closed state are formed, and on the side surface on the upstream side in the gas flow direction in each hole closing portion, The air-conditioning blowout device according to claim 9, wherein a branching projection having a pair of branching guide surfaces for branching and guiding the straightly moving gas flowing along the inner flow path to both adjacent vent holes is formed.

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