JP2006125662A - Blowout instrument for air conditioning, and cylindrical body for forming discharge portion, used in blowout instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To unify an air blowing-out state in a blowout instrument for air conditioning. <P>SOLUTION: In this blowout instrument for air conditioning wherein a slit-shaped blowout opening 2 is formed on a blowout face portion 1a of a blowout box 1, and a connection opening 4 of an air supply duct 3 is formed on a connecting face portion 1b, a discharge cylindrical portion 5 for guiding the supplied air A is provided in a state of projecting inside of the blowout box 1 from the connection opening 4, a collision face portion 6 for diffusion is formed on a tip portion of the discharge cylindrical portion 5 for making the supplied air A collide therewith, a part opposite to an opposite face portion 1c of the blowout face portion 1a in the blowout box 1, of a peripheral face portion of the discharge cylindrical portion 5 is provided with a wind shielding portion 7 for blocking or limiting the discharge of air into the blowout box therethrough, a direct blowout opening portion 8 is formed on a part opposite to the blowout face portion 1a, of the peripheral face portion of the discharge cylindrical portion, indirect blowout opening portions 9A, 9B are formed on parts opposite to both longitudinal end face portions 1e, 1f of the blowout box 1, of the peripheral face portion of the discharge cylindrical portion 5, and the indirect blowout opening portions 9A, 9B have an opening width larger than that of the direct blowout opening portion 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to an air-conditioning blowout device generally referred to as a line type, and a discharge portion forming cylinder used therein,
Specifically, in a long blowing box, one of the two face parts adjacent to each other in the longitudinal direction of the box (in other words, a cross-sectional view of the box) is used as the blowing face part, and the other face part is connected. A blower for air conditioning in which a slit-like air outlet extending in the longitudinal direction of the box is formed in the air outlet surface as the surface portion, and a connection port of the air supply duct is formed in the connecting surface portion, and a discharge portion forming cylinder used therefor About the body.

  Conventionally, in the air-conditioning blowout device as described above (see FIGS. 7 and 8), the slit-like blowout port 2 in the blowout surface portion 1 a of the blowout box 1 is a long one extending in the longitudinal direction of the blowout box 1. On the other hand, in order to improve the air conditioning performance, in order to make the blowing state of the air A (particularly the blowing wind speed and blowing direction) from the long blower outlet 2 uniform in the blower outlet longitudinal direction, a plurality of connection ports 4 are used. Are formed on the connection surface portion 1b of the blowing box 1 in a state of being dispersed in the longitudinal direction of the box, and a plurality of air supply ducts 3 are connected in parallel to the blowing box 1, whereby the blowing box 1 The air supply state to the box is dispersed in the longitudinal direction of the box, so that the air blowing state from the long outlet 2 is made uniform.

  Further, in the case where only one connection port 4 for the air supply duct 3 is formed at the central portion in the box longitudinal direction of the connection surface portion 1b of the blowing box 1, the porous plate-like body is extended over the entire length in the box longitudinal direction. There is also an instrument that is installed inside the blowing box 1 and uniformizes the blowing state of the air A from the long air outlet 2 by guidance and wind regulation by the long porous plate-like body.

  However, in the former prior art in which a plurality of air supply ducts 3 are connected to one blowing box 1, there are a large number of facilities of the air supply ducts 3, which increases the equipment cost and lowers the installation efficiency of the equipment. On the other hand, in the latter conventional technique in which a long porous plate-like body is installed inside the blowout box 1, the blowout box 1 is expensive, which increases the equipment cost. However, there is a problem that the construction efficiency of the equipment is lowered due to the increase in weight, and in the case of air-conditioning equipment such as buildings, there are many cases of this type of blowing equipment, so the above problem becomes remarkable. It was.

  In view of this situation, the main problem of the present invention is to effectively solve the above-mentioned problems by rationalizing the structure of the duct connection port portion in the blowing box.

[1] A first characteristic configuration of the present invention relates to an air-conditioning blower,
In a long blowing box, a slit-like shape extending in the box longitudinal direction on the blowing surface portion with one of the two surface portions adjacent to each other in the longitudinal direction of the box as the blowing surface portion and the other surface portion as a connecting surface portion In the air-conditioning blow-out appliance that forms the air outlet duct and the connection surface portion of the air supply duct,
Disposing a discharge cylinder for guiding supply air from the air supply duct in a state of projecting from the connection port into the blowing box,
A diffusion collision surface portion that collides the supply air from the air supply duct is provided at the distal end portion of the discharge cylinder portion, and of the peripheral surface portion of the discharge cylinder portion, the opposed surface portion of the blowing surface portion in the blowing box Is provided with a wind-shielding portion that prevents or restricts air discharge from the discharge cylinder to the inside of the blowing box through the portion,
As an opening for discharging the air collided with the collision surface portion into the inside of the blowing box, an opening for direct blowing is formed in a portion of the peripheral surface portion of the discharging cylinder portion facing the blowing surface portion. Forming an opening for indirect blowing in a portion of the peripheral surface portion of the discharge cylinder portion facing both end surface portions in the longitudinal direction of the blowing box;
This indirect blowout opening is an opening having a larger opening width in the cylinder axis direction of the discharge cylinder than the direct blowout opening.

  That is, when only one connection port 4 is provided in the connection surface portion 1b of the blowing box 1 (see FIGS. 9 and 8), the air supplied from the air supply duct 3 to the inside of the blowing box 1 through the connection port 4 A is the inside of the blowing box 1 in a radial direction when viewed from the center axis direction of the connection port 4 after colliding with the surface portion 1d facing the connection port 4 in the blowing box 1 (that is, the facing surface portion of the connection surface portion 1b). Of the radial diffused air A, which is indicated by a thin broken arrow pointing toward the blowout surface portion 1a on which the blowout port 2 is formed (strictly speaking, it flows toward the slit-like blowout port 2 and blows out the blowout port. 2), when viewed alone, it proceeds in a concentric state in which the radial airflow direction and the airflow velocity are kept uniform.

  Therefore, in the radial diffused air A after the collision, the air flow toward the blowout surface portion 1a (arrow with a thin broken line), when viewed alone, at the central portion in the longitudinal direction of the blowout port 2, It is blown out from the blower outlet 2 at a large blown wind speed that is good in air conditioning perpendicular to the opening surface and still does not progress so much in the radial direction. The air blows out from the air outlet 2 in a slanting air direction that is inclined outward in the longitudinal direction of the air outlet 2 and at a small air velocity at which radial diffusion has progressed.

  On the other hand, in the radial diffused air A after the collision, in the longitudinal direction of the outlet box 1 when viewed from the center axis direction of the connection port 4, the both end face parts 1 e and 1 f (left and right side parts in FIG. 9) and the outlet box 1 With respect to what is indicated by the one-dot chain line arrow in the figure that faces the opposing surface portion 1c (upper surface portion in FIG. 9) of the blowout surface portion 1a, the progress is blocked by the respective surface portions 1e, 1f, and 1c facing each other. In the blowout box 1, both ends in the longitudinal direction are turned toward the blowout surface portion 1a, and when only it is viewed alone, the blowout port 2 is mainly formed from the portion near the both longitudinal ends of the blowout port 2. It will be in the state which blows off in the direction substantially orthogonal to an opening surface.

  From the above, when only one connection port 4 is provided in the connection surface portion 1a of the blowing box 1, the air outlet 2 can be seen from the whole of the air A supplied from the connection port 4 to the inside of the blowing box 1. From the central portion in the longitudinal direction, air A (thin broken arrow) directed toward the blowing surface portion 1a due to the radial diffusion mainly due to the collision is blown out in a blowing direction orthogonal to the opening surface of the blowout port 2. From the part near the longitudinal direction both ends of the air outlet 2, air A (arrows with thin broken lines) directed toward the air outlet surface portion 1 a due to radial diffusion due to collision, and surface portions 1 e other than the air outlet surface portion due to radial diffusion due to collision. A state in which detoured air A (arrows indicated by alternate long and short dash lines) that has finally turned toward the blowing surface 1a toward 1f and 1c is in a merged state and is blown out in a blowing direction determined by the merging ratio of the air become.

  However, in a blowing device that only provides one connection port 4 in the connection surface portion 1b of the blowing box 1 (that is, a conventional general device that does not take any measures to make the blowing state uniform), the longitudinal direction of the blowing port 2 The merging ratio of the air A in the air blowing due to the merging as described above occurring in the portions near both ends is fixed such as the shape of the blowing box 1 and the dimensions of each part, the diameter of the connection port 4, the amount of air supplied from the connection port 4, and the like. Depending on various conditions, it is determined in an uncertain state, and this is one of the causes, and the air A blowout state from the slit-like air outlet 2 becomes uneven in the longitudinal direction of the air outlet. There was found.

  On the other hand, in the first characteristic configuration of the present invention (see FIGS. 2 to 4), the supply air A from the air supply duct 3 guided by the discharge cylinder 5 is caused to collide with the collision surface 6 for diffusion. The supply air A is diffused radially in the direction of the central axis of the connection port 4 (that is, in the direction of the cylinder axis of the discharge cylinder 5), and this diffusion air A is diffused in the peripheral surface of the discharge cylinder 5. Although it is made to discharge in the inside of the blowing box 1 from each opening part 8, 9A, 9B of formation, about the thing which goes to the opposing surface part 1c (upper surface part in a figure) of the blowing surface part 1a in the blowing box 1 among this diffused air A Is prevented or restricted from being discharged into the blowing box by the wind shield 7 provided in the discharge cylinder 5.

  In other words, due to the discharge prevention or discharge restriction by the wind-shielding portion 7, the blow-off surface portions are finally formed at both ends in the longitudinal direction inside the blow-out box 1 toward the surface portions other than the blow-out surface portion 1 a of the diffused air A after the collision. In the detoured air changing to the direction 1a (indicated by the one-dot chain line arrow in FIG. 4), the one changing in the direction of the blowing surface 1a at one end in the longitudinal direction inside the blowing box 1, and for blowing The indirect blowing opening 9A facing the one end surface 1e in the longitudinal direction of the blowing box 1 and the blowing ratio of the air volume ratio of the other end in the longitudinal direction inside the box 1 to the direction of the blowing surface 1a. It becomes possible to define clearly by setting the relative opening width d2 with respect to the other indirect blowing opening 9B facing the other end face 1f in the longitudinal direction of the box 1 (note that Unless otherwise stated, it refers to an opening width in the cylinder axis direction of the ejection cylinder portion 5 and the opening width).

  In addition, the indirect blowing openings 9A and 9B are made to have larger opening widths than the direct blowing openings 8, thereby adopting a configuration in which the shielding part 7 is provided. The air volume of the detoured air A indicated by the alternate long and short dashed arrows in the figure, which changes toward the blowing surface 1a at both ends in the longitudinal direction inside (that is, the blowing box from the direct blowing opening 8 of the discharge cylinder 5) Among the air A shown by the thin broken arrows in the figure, the air blown obliquely from the portions near the both ends in the longitudinal direction of the blower outlet 2 is blown out by the above-mentioned merging. The air volume of the air that changes the direction by being pushed to the side orthogonal to the opening surface of the air) is sufficiently ensured with respect to the amount of air discharged from the direct opening 8 on the appearance of the change in direction. it can.

  Further, by setting the relative opening widths d2 and d1 for the indirect blowing openings 9A and 9B and the direct blowing opening 8, one of the indirect blowing openings 9A and the other indirect blowing opening described above. Combined with the relative opening width setting for the portion 9B, it becomes possible to clearly define the merging ratio of the air A of the air blowing by the merging as described above at each of the portions near the both ends in the longitudinal direction of the outlet 2. .

  That is, according to the first characteristic configuration of the present invention, regardless of fixed conditions such as the shape and size of the blowing box 1, the diameter of the connection port 4, the amount of air supplied from the connection port 4, etc. By appropriately setting the opening widths d1, d2 of the openings 8, 9A, 9B provided in the cylindrical portion 5, the air A of the air blown out by the merging as described above at the portions near the both ends in the longitudinal direction of the outlet 2 Can be defined as a suitable merge ratio as much as possible (that is, a suitable merge ratio that can make the blowing state of the air A from the blowout port 2 uniform as much as possible in the longitudinal direction of the blowout port as shown in FIG. 5). Thereby, the blowing state of the air A from the elongate slit-shaped blower outlet 2 can be equalized effectively in the blower outlet longitudinal direction.

  And the blowing state of the air A from the long blower outlet 2 is effectively equalized only by setting the opening widths d1 and d2 of the openings 8, 9A and 9B in the discharge cylinder 5 as described above. As a result, the air supply duct for one blowing box 1 can be compared with the above-described conventional technique in which the blowing state is made uniform only by connecting a plurality of air supply ducts 3 in parallel to the blowing box 1. The number of connections of 3 can be reduced to one (or reduced), and the equipment cost can be reduced and the construction efficiency of the equipment can be increased.

  Compared to the above-mentioned latter prior art, in which the blowing state is made uniform only by installing a long perforated plate-like body inside the blowing box 1, the perforated plate-like body is equipped in the box. It can be made unnecessary (or lightened), and the blowing box 1 can be made inexpensive and lightweight, thereby reducing the equipment cost and increasing the construction efficiency of the equipment.

  In the implementation of the first characteristic configuration, the collision surface portion for diffusion is formed by the dedicated surface portion 6 provided at the distal end portion of the discharge cylinder portion 5, or the surface portion facing the connection surface portion 1b in the blowing box 1 Any configuration in which the portion of 1d facing the tip of the discharge cylinder portion 5 is also used as the collision surface portion for diffusion may be employed.

  In the implementation of the first characteristic configuration, it is generally desirable that the opening 8 for direct blowing has an opening width d1 that is constant in the circumferential direction of the discharge cylinder 5, but in some cases, The opening width d <b> 1 of the direct blowing opening 8 may be changed in the circumferential direction of the discharge cylinder 5.

[2] The second characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the first characteristic configuration.
The direct blowing opening and the indirect blowing opening are continuous in the circumferential direction of the discharge cylinder.

  In other words, according to the second feature configuration, the direct blowout opening and the indirect blowout opening are formed in a discontinuous state in the circumferential direction of the discharge cylinder, compared to the discharge in the discontinuous portion. It is possible to avoid non-uniformity of the air blowing state at the air outlet caused by the influence of the peripheral surface portion of the cylinder portion blocking the air discharge from the discharging cylinder portion. The blowing state of air can be more effectively uniformed in the longitudinal direction of the outlet.

  Further, by making the direct blow opening and the indirect blow opening continuous in the circumferential direction of the discharge cylinder, in the manufacture of the discharge cylinder, the direct blow opening and the indirect blow opening are Substantially one opening can be formed in the discharge cylinder, thereby facilitating manufacture.

[3] The third characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the first or second characteristic configuration.
It exists in the point arrange | positioned in the state which directly faces the said opening part for direct blowing to the said blower outlet by the longitudinal direction view of the said box for blowing.

  That is, according to the third characteristic configuration, the direct blow-off opening and the blow-out opening are directly opposed to each other from the direct blow-off opening in the longitudinal direction of the blow-out box (in other words, in cross-sectional view). The discharge air can be passed smoothly and stably to the air outlet, and the non-uniformity of the air blowing state due to the turbulence of the airflow can be effectively suppressed. Can be made more effective in the longitudinal direction of the outlet.

  In addition, since the discharge air from the direct outlet can be passed smoothly and stably to the outlet, the pressure loss of the air in the outlet box can be effectively reduced, and the blowing power is reduced. It may be advantageous in terms of the aspect.

[4] The fourth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to third characteristic configurations,
The indirect blowing opening has a structure in which the opening width in the cylinder axis direction of the discharging cylinder is increased as the distance from the direct blowing opening is increased in the circumferential direction of the discharging cylinder.

  That is, according to the fourth feature configuration, the opening width of the portion near the direct blowing opening in the circumferential direction of the discharge cylinder portion of the indirect blowing opening is small close to the opening width of the direct blowing opening. In addition, while suppressing a sudden change in the circumferential direction of the discharge cylinder portion of the air discharge amount in the portion from the opening portion for direct blowing to the opening portion for indirect blowing, the blowing surface portions at both longitudinal ends inside the blowing box The amount of air that changes direction (i.e., the air that is blown obliquely from the portions near the longitudinal ends of the blower outlet among the discharge air from the direct blowout opening by the above-mentioned merging. It is possible to sufficiently ensure the air volume of the air that is pushed and changed in the direction orthogonal to the direction.

  Then, the sudden change in the circumferential direction of the discharge cylinder portion of the air discharge amount in the portion from the direct blow opening to the indirect blow opening can be suppressed, so that the direct blow opening and the indirect blow opening can be suppressed. The flow of air discharged from each of the sections toward the ends in the longitudinal direction of the outlet can be made smooth and stable, so that the portions closer to the ends in the longitudinal direction of the outlet As described above, the change in the blowing direction due to the merging can be made smooth and stable, and the air blowing state from the slit-like outlet can be made more effective in the longitudinal direction of the outlet. can do.

  In the implementation of the fourth characteristic configuration, it is desirable that the opening width of the indirect blowing opening is gradually increased as the distance from the direct blowing opening in the circumferential direction of the discharge cylinder is increased. It is desirable that the opening width of the end portion of the opening portion for indirect blowing on the side of the opening portion is an opening width substantially equal to the opening width of the opening portion for direct blowing.

[5] The fifth characteristic configuration of the present invention specifies an embodiment suitable for any one of the first to fourth characteristic configurations.
An adjustment opening is formed in an arrangement in which the adjustment opening is made to be continuous with or close to the indirect blowing opening in a portion of the peripheral surface portion of the discharge cylinder portion facing the opposed surface portion of the blowing surface portion in the blowing box. It is in a certain point.

  That is, depending on various conditions, even if the opening area of the opening for indirect blowing is ensured as large as possible, the air volume of detoured air that changes in the direction of the blowing surface at both longitudinal ends inside the blowing box (i.e., In some cases, it may be difficult to ensure a sufficient air volume for the change in the blowing direction due to the above-mentioned merging. However, even in such a case, according to the fifth feature configuration, both longitudinal ends in the blowing box Thus, it is possible to sufficiently secure the air volume of the air that is changed in the direction of the blowout surface portion by the sum of the air discharge amount from the indirect blowout opening and the air discharge amount from the adjustment opening.

[6] The sixth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to fifth characteristic configurations,
A discharge portion forming cylinder that is inserted into the connection port from the outside of the blowout box and attached to the blowout box is provided, and an insertion start end portion of the discharge portion forming cylinder is used as the discharge cylinder portion. There is a point.

  That is, according to the sixth feature configuration, the discharge portion forming cylinder having the openings formed in the peripheral surface portion of the insertion start end portion is inserted into the outlet box from the connection opening end portion. By inserting it into the connection port from the outside of the blowing box in a protruding state and attaching it to the blowing box, it is possible to equip the blowing box with the discharge cylinder part.

  That is, the blowout device of the present invention can be obtained simply by attaching the discharge portion forming cylinder to the blowout box using a conventional blowout box that is not equipped with the discharge tube portion in the blowout box. .

  In addition, it is possible to further facilitate the manufacture of the instrument by forming each opening portion of the required opening width in the discharge portion forming cylinder before being attached to the blowout box. Since it is inserted into the connection port from the outside of the blowout box and attached to the blowout box, the discharge part forming cylinder can be easily attached to the blowout box even at the facility site of the blowout box. It can be made more advantageous in terms of production, cost and construction.

[7] The seventh characteristic configuration of the present invention specifies an embodiment suitable for the implementation of the sixth characteristic configuration.
In the insertion of the discharge portion forming cylinder into the connection port, the direct blowout opening portion of the discharge portion forming cylinder is brought into contact with the opposing surface portion of the connection surface portion of the blowout box. A stopper portion that is positioned at a position facing the air outlet when viewed in the longitudinal direction of the box is provided at the distal end portion of the insertion start end portion of the discharge portion forming cylinder.

  That is, according to the seventh characteristic configuration, the discharge portion forming cylinder is only inserted into the connection port until the stopper portion abuts against the opposing surface portion of the connection surface portion in the blowing box and further insertion is impossible. Thus, it is possible to reliably position the discharge portion forming cylinder directly at the position where the opening for direct blowing faces the air outlet as viewed in the longitudinal direction of the blowing box. The manufacture of the instrument can be made easier.

[8] The eighth characteristic configuration of the present invention relates to a discharge portion forming cylinder used in the air-conditioning blowout device of the sixth or seventh characteristic configuration,
A diffusion collision surface portion for colliding supply air from the air supply duct is provided at a distal end portion of an insertion start end portion of a cylindrical body that is inserted into the connection port from the outside of the blowing box and attached to the blowing box. The cylindrical body insertion start end side portion into the blowing box through the portion of the peripheral surface portion of the cylindrical insertion start end portion opposed to the opposed surface portion of the blowing surface portion in the blowing box Provide a wind shield that prevents or restricts air discharge,
As an opening for discharging the air collided with the collision surface into the inside of the blowing box, an opening for direct blowing is formed in a portion of the peripheral surface portion in the insertion start end portion of the cylindrical body facing the blowing surface. And forming an opening for indirect blowing in the portion facing the both end surface portions in the longitudinal direction of the blowing box among the peripheral surface portion in the insertion start end portion of the cylindrical body,
This indirect blowout opening is an opening having a larger opening width in the cylinder axis direction of the cylinder than the direct blowout opening.

  That is, according to the eighth characteristic configuration, the cylindrical body is inserted into the connection port from the outside of the blowing box in a state where the insertion start end portion projects from the connection port to the inside of the blowing box. By attaching to the box, it is possible to equip the discharge box with the discharge cylinder part with the insertion start end portion of the cylinder as the discharge cylinder part.

  That is, by using a conventional blowing box that is not equipped with a discharge cylinder portion in the blowing box, it is possible to easily obtain the blowing device having the first characteristic configuration by simply attaching the cylinder to the blowing box. Can do.

  1 and 2 show a line-type air-conditioning blow-out device. In this blow-out device, in a long blow-out box 1, the lower surface portion 1a is viewed in the longitudinal direction of the box 1 (in other words, in a cross-sectional view). A slit-like outlet 2 extending in the longitudinal direction of the box is formed on the outlet surface portion 1a with the outlet surface portion 1b as a connection surface portion, and the connection of the air supply duct 3 to the connection surface portion 1b. A mouth 4 is formed.

  That is, in this blow-out device, the blow-out box 2 is opened in the ceiling space such as the window, and the blow-out box 1 is installed in the space behind the ceiling, and the blow-out box 1 is provided with an air supply duct 3 made of a flexible pipe or the like. Air-conditioning air A (for example, cooling air for cooling or heated air for heating) is supplied through the slit-shaped air outlet 2 to form a curtain and blown downward into the room. In this way, indoor air conditioning is performed.

  A cylindrical connection port 4 for connecting the air supply duct 3 is formed in the connection surface portion 1b at the center in the longitudinal direction of the blowing box 1, and the inside of the blowing box 1 is connected to the air supply duct 3 from the air supply duct 3. The discharge cylinder portion 5 for guiding the supply air A is provided so as to protrude from the connection port 4 into the box.

  As shown in FIGS. 2 and 3, a diffusion collision surface section 6 for colliding the supply air A from the air supply duct 3 is provided at the tip of the discharge cylinder section 5, and the discharge cylinder section 5 Of the peripheral surface portion, the upper portion facing the upper surface portion 1c of the blowing box 1 (that is, the facing surface portion of the blowing surface portion 1a) is discharged from the discharge cylinder portion 5 into the blowing box through the upper portion. A wind shield 7 for preventing air discharge is provided.

  Moreover, as an opening part which discharges the air A collided with the collision surface part 6 into the inside of the discharge box 1, it is for direct blowing in the lower part facing the blowing surface part 1a among the peripheral surface parts of the discharge cylinder part 5. Opening portions 9A and 9B for indirect blowing are formed in the left and right lateral portions of the peripheral surface portion of the discharge cylinder portion 5 which are opposite to the both end surface portions 1e and 1f in the longitudinal direction of the blowing box 1. It is formed.

  The direct blowing opening 8 is disposed so as to face the air outlet 2 in a cross-sectional view of the blowing box 1, and the opening width d 1 is a constant opening in the circumferential direction of the discharge cylinder 5. On the other hand, the left and right indirect blowing openings 9A and 9B are continuous with the direct blowing opening 8 in the circumferential direction of the discharge cylinder 5, and the opening width d2 is the circumferential direction of the discharge cylinder 5. In FIG. 5, the opening gradually increases from the same opening width d1 as the direct blowing opening 8 as the distance from the direct opening 8 increases.

  That is, in this blowing device, the supply air A from the air supply duct 3 guided by the discharge cylinder 5 collides with the collision surface 6 for diffusion, so that the supply air A is connected to the connection port 4 as shown in FIG. The diffused air A is diffused radially in the direction of the central axis of the nozzle and discharged from the openings 8, 9A, 9B formed in the peripheral surface of the discharge cylinder 5 into the blowout box. A portion of A that faces the facing surface portion 1c (upper surface portion) of the blowing surface portion 1a in the blowing box 1 is prevented from being discharged into the blowing box by the wind shielding portion 7.

  That is, in the cylindrical structure in which the wind shield portion 7 exists, the opening width d2 of the left and right indirect blowing openings 9A and 9B is relatively set to blow out the diffused air A after the collision. For the detoured air indicated by the alternate long and short dash line arrows in the figure that change toward the blowing surface part (downward) at both ends in the longitudinal direction inside the blowing box 1 toward the surface parts other than the surface part 1a The air volume ratio between the one that changes in the direction of the blowing surface 1a at one end in the longitudinal direction inside the box 1 and the one that changes in the direction of the blowing surface 1a at the other end in the longitudinal direction inside the blowing box 1 It is intended to prescribe.

  Further, in this blowout device, the indirect blowout openings 9A and 9B have an average opening width larger than that of the direct blowout opening 8 on average, so that the above-described detour is provided while providing the wind shield part 7. Air volume (that is, the portion near the both ends in the longitudinal direction of the air outlet 2 in the air indicated by the thin dashed arrows in the figure discharged from the direct air outlet 8 toward the air outlet surface 1a of the air outlet box 1 It is possible to secure a sufficient amount of air flow that causes the air blown in an oblique direction to be pushed downward by merging with it and to be turned downward.

  And about the opening part 9A, 9B for indirect blowing, and the opening part 8 for direct blowing, by setting those opening width d2, d1 relatively, it is relative about the opening part 9A, 9B for right and left indirect blowing. In combination with the appropriate opening width setting, the merging ratio of the air blown out by the merging as described above at each of the longitudinal direction end portions of the outlet 2 is set to the optimum merging ratio (ie, the outlet 2 as shown in FIG. 5). The air A blowout state from the air outlet is defined as a confluence ratio that is uniform in the longitudinal direction of the blowout port.

  The discharge cylinder portion 5 in the blowing box 1 is formed by inserting a discharge portion forming cylinder 10 as shown in FIG. 3 into the connection port 4 from the outside of the blowing box 1. A discharge portion forming cylinder 10 as shown in FIG. 3 in which the collision wall portion 6, the wind shield portion 7, the direct blowing opening 8, and the indirect blowing openings 9 A and 9 B are formed in advance is connected to the insertion start end side portion. Before connecting the air supply duct 3 to the port 4, it is inserted into the connection port 4 and attached to the blowing box 1, so that the discharge portion forming cylinder 10 is inserted into the blowing box 1 with the insertion start end side portion. A cylindrical portion 5 is formed.

  In addition, at the tip of the insertion start end portion of the discharge portion forming cylinder 10, in the insertion of the discharge portion forming cylinder 10 into the connection port 4, the opposing surface portion 1 d (the other side) of the connection surface portion 1 b in the blowing box 1 The stopper portion 11 for positioning the discharge portion forming cylinder 10 at a position where the direct blowout opening 8 faces the blowout port 2 in a cross-sectional view of the blowout box 1. It is formed in a state of projecting from the wind shield 7.

  Reference numeral 12 denotes a belt-like connector for fixing the air supply duct 3 to the cylindrical connection port 4.

[Another embodiment]
Next, another embodiment will be listed.
In the above-described embodiment, the direct blowout opening facing the blowout surface portion 1a of the blowout box 1 is used as an opening for discharging the air A collided with the collision face portion 6 from the discharge cylinder portion 5 into the blowout box 1. Although the example which forms the opening part 9A, 9B for indirect blowing which opposes the both end surface parts 1e and 1f in the longitudinal direction of the part 8 and the blowing box 1 in the discharge cylinder part 5 was shown, after the collision to the collision surface part 6 In the diffused air A, the detoured air A (one point) which finally turns toward the blowing surface portion at both ends in the longitudinal direction inside the blowing box 1 toward the surface portion other than the blowing surface portion 1a in the blowing box 1 When it is difficult to secure a sufficient air volume of the arrow of the chain line), as shown in FIG. 6, both ends of the shielding part 7 in the circumferential direction of the discharge cylinder part 5 are cut off at the broken lines in the figure, and used for indirect blowing. Continuous to the openings 9A and 9B Or adjusting opening portion 13 adjacent the peripheral surface portion of the ejection cylinder portion 5 may be additionally formed.

  In the above-described embodiment, an example in which the collision surface portion 6 is formed by a dedicated surface portion provided at the distal end portion of the discharge cylinder portion 5 is shown, but instead, the facing surface portion 1d of the connection surface portion 1b in the blowing box 1 is shown. Of these, the connection port facing portion may be used as the collision surface portion 6.

  The wind shield 7 is not limited to completely blocking air discharge from the discharge cylinder portion 5 toward the facing surface portion 1c of the blowout surface portion 1a in the blowout box 1, but restricts the air discharge (that is, directly) It may be one that restricts air discharge from the discharge cylinder 5 into the blowout box 1 as compared to the blowout opening 8 and the indirect blowout openings 9A and 9B).

  The direct blowout opening 8 is not limited to the portion formed in the circumferential direction of the portion of the peripheral surface portion of the discharge cylinder portion 5 that faces the blowout surface portion 1a of the blowout box 1, and is not limited to that portion. Similarly, the indirect blowing openings 9A and 9B may be formed on only a part of the direction, and the indirect blowing openings 9A and 9B are both end surfaces 1e and 1f in the longitudinal direction of the blowing box 1 of the peripheral surface portion of the discharge cylinder 5. In the part which opposes, it is not restricted to what is formed over the circumferential direction full length of the part, You may form only in a part of the circumferential direction in the part.

  The direct blowing opening 8 is not limited to an opening width d1 that is constant in the circumferential direction of the discharge cylinder portion 5, but may be an opening shape in which the opening width d1 varies in the circumferential direction of the discharge cylinder portion 5. In addition, the opening portions 9A and 9B for indirect blowing are not limited to those in which the opening width d2 changes in the circumferential direction of the discharge cylinder portion 5, but the opening width d2 has a constant opening shape in the circumferential direction of the discharge cylinder portion 5. You may make it.

  Each of the direct blowing opening 8 and the indirect blowing openings 9A and 9B is not limited to a single-port structure, and may be a porous structure made of a punching plate or a net-like body.

  In the above-described embodiment, the structure in which the discharge cylinder portion 5 is formed by inserting the discharge portion forming cylinder 10 into the connection port 4 so that the insertion start end portion of the discharge portion forming cylinder 10 is formed. Not limited to this, there are various structures for forming the discharge cylinder portion 5 such as a structure in which the discharge cylinder portion 5 is formed by attaching a cylinder to the formation portion of the connection port 4 from the inside of the blowing box 1. Can be adopted.

  The air supply duct 3 and the connection port 4 to the air supply duct 3 are not limited to those having a circular cross-sectional shape, but may have a rectangular cross-sectional shape.

  The formation position of the connection port 4 is not limited to the center position in the box longitudinal direction of the connection surface portion 1b of the blowing box 1, but is formed on the connection surface portion 1b at a position close to one end side of the blowing box 1 in the box longitudinal direction. The number of connection ports 4 formed in the blowing box 1 is not necessarily limited to one and may be a plurality of ports.

  In the above-mentioned embodiment, although the example which arrange | positions the blowing box 1 with the attitude | position which makes a lower surface part the blowing surface part 1a was shown, this invention is not restricted to this, One elevation part and an upper surface part are made into a blowing surface part. The present invention can also be applied to the case where the blowing box 1 is disposed in such a posture.

  The air-conditioning blowout apparatus according to the present invention supplies various air-conditioning air such as cooling air for cooling, heating air for heating, dehumidified and humidified air for humidity adjustment, or ventilation air to the air-conditioning target area. It can be applied to supply balloons.

External perspective view of blowing equipment Cross-sectional view of blowing device at duct connection Perspective view of discharge part forming cylinder The figure which shows typically the air current state in the box for blowing out The figure which shows the optimal air blowing state from the blower outlet typically The perspective view of the cylinder for discharge part formation which shows another embodiment External perspective view of conventional instrument Cross-sectional view of duct connection part in conventional instrument The figure which shows typically the airflow state in the box for blowing in the conventional general instrument

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Blowout box 1a Blowing surface part 1b Connection surface part 2 Blowing outlet 3 Supply duct 4 Connection port A Air 5 Discharge cylinder part 6 Colliding surface part 1c Opposite surface part of a blowing surface part 7 Wind shield part 8 Direct blowout opening part 1e, 1f Blowout Both end surface portions in the longitudinal direction of the box for use 9A, 9B Indirect blowing opening d1 Opening width of the direct blowing opening d2 Opening width of the indirect blowing opening 13 Adjustment opening 10 Discharge portion forming cylinder 11 Stopper portion

Claims (8)

In a long blowing box, a slit-like shape extending in the box longitudinal direction on the blowing surface portion with one of the two surface portions adjacent to each other in the longitudinal direction of the box as the blowing surface portion and the other surface portion as a connecting surface portion And a blowout device for air conditioning in which a connection port of an air supply duct is formed on the connection surface portion,
Disposing a discharge cylinder for guiding supply air from the air supply duct in a state of projecting from the connection port into the blowing box,
A diffusion collision surface portion that collides the supply air from the air supply duct is provided at the distal end portion of the discharge cylinder portion, and of the peripheral surface portion of the discharge cylinder portion, the opposed surface portion of the blowing surface portion in the blowing box Is provided with a wind-shielding portion that prevents or restricts air discharge from the discharge cylinder to the inside of the blowing box through the portion,
As an opening for discharging the air collided with the collision surface portion into the inside of the blowing box, an opening for direct blowing is formed in a portion of the peripheral surface portion of the discharging cylinder portion facing the blowing surface portion. Forming an opening for indirect blowing in a portion of the peripheral surface portion of the discharge cylinder portion facing both end surface portions in the longitudinal direction of the blowing box;
An air-conditioning blowout device in which the opening for indirect blowing is an opening having a larger opening width in the cylinder axis direction of the discharge cylinder than the opening for direct blowing.   The air-conditioning blowout device according to claim 1, wherein the direct blowout opening and the indirect blowout opening are continuous in the circumferential direction of the discharge cylinder.   The air-conditioning blowout device according to claim 1 or 2, wherein the direct blowout opening is arranged in a state of facing the blowout port in a longitudinal view of the blowout box.   The opening width in the cylinder axis direction of the cylinder part for discharge becomes large so that the opening part for indirect blowing becomes far from the opening part for direct blow in the peripheral direction of the cylinder part for discharge. The blowout device for air conditioning according to any one of 3.   An adjustment opening is formed in an arrangement in which the adjustment opening is made to be continuous with or close to the indirect blowing opening in a portion of the peripheral surface portion of the discharge cylinder portion facing the opposed surface portion of the blowing surface portion in the blowing box. The air-conditioning blowout device according to any one of claims 1 to 4.   A discharge portion forming cylinder that is inserted into the connection port from the outside of the blowout box and attached to the blowout box is provided, and an insertion start end portion of the discharge portion forming cylinder is used as the discharge cylinder portion. The air-conditioning blowout device according to any one of claims 1 to 5.   In the insertion of the discharge portion forming cylinder into the connection port, the direct blowout opening portion of the discharge portion forming cylinder is brought into contact with the opposing surface portion of the connection surface portion of the blowout box. The air-conditioning blowout device according to claim 6, wherein a stopper portion that is positioned at a position facing the blowout port as viewed in the longitudinal direction of the box is provided at a distal end portion of an insertion start end portion of the discharge portion forming cylinder. It is a cylinder for discharge part formation used for a blower for air-conditioning according to claim 6 or 7,
A diffusion collision surface portion for colliding supply air from the air supply duct is provided at a distal end portion of an insertion start end portion of a cylindrical body that is inserted into the connection port from the outside of the blowing box and attached to the blowing box. The cylindrical body insertion start end side portion into the blowing box through the portion of the peripheral surface portion of the cylindrical insertion start end portion opposed to the opposed surface portion of the blowing surface portion in the blowing box Provide a wind shield that prevents or restricts air discharge,
As an opening for discharging the air collided with the collision surface into the inside of the blowing box, an opening for direct blowing is formed in a portion of the peripheral surface portion in the insertion start end portion of the cylindrical body facing the blowing surface. And forming an opening for indirect blowing in the portion facing the both end surface portions in the longitudinal direction of the blowing box among the peripheral surface portion in the insertion start end portion of the cylindrical body,
A discharge part forming cylinder in which the opening for indirect blowing is an opening having a larger opening width in the cylinder axis direction of the cylinder than the opening for direct blowing.

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