Rectification type gw line box

Abstract

To provide a rectification type line box capable of making a wind volume in a longitudinal direction uniform in an indoor opening part.SOLUTION: In a line box 1, a plate-like member 70 having a plurality of dispersed through holes is arranged in each of unit spaces S1, S2, a predetermined distance away from the tip part of a supply port 40. The plate-like member 70 overlaps with an aperture of the supply port 40 in a plan view, and is formed in a shape larger than the aperture. The plate-like member is arranged so as to correspond not to the entire unit spaces S1, S2 in a longitudinal direction, but to only portions of the unit spaces.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a line box connected to a duct that delivers conditioned air. [Background technology]

[0002] Conventionally, a system has been adopted in which a duct extends from an air conditioner placed in the ceiling of a building, and conditioned air is supplied from a box (line box) connected to the duct to a room through an opening (hereinafter referred to as an "indoor opening") formed in each air-conditioned area such as a living room. Generally, the opening surface of the indoor opening is rectangular, and the outlet of the line box connected to the indoor opening is also a rectangular parallelepiped that matches the shape of the opening surface of the indoor opening (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-56895 A Summary of the Invention [Problem to be solved by the invention]

[0004] As shown in FIG. 65, a line box generally includes a hollow main body 100 and a cylindrical exhaust port 150. Typically, the exhaust port 150 is formed in a rectangular cylindrical shape to match the rectangular indoor opening 200. For example, a line box 1 is placed above the ceiling so that conditioned air is exhausted from the indoor opening 200 formed in Room C, which is the ceiling. When conditioned air Air1 is supplied to the opening 110 in the ceiling of the line box 1, the conditioned air Air1 passes through the inside of the main body 100 and the exhaust port 150, becoming exhaust air Air2, which is supplied to Room M, which is the room.

[0005] Inside the main body 100, Air 1 spreads toward both longitudinal ends (in the direction indicated by arrow Y) where the air pressure is low, and passes through the indoor opening 200 toward Room M. However, because most of Air 1 tends to flow directly below the opening 110, there is a bias in the flow rate of Air 2 in the longitudinal direction of the exhaust port 150. If the opening 110 were formed on the front surface (the surface facing the page) rather than the ceiling, Air 1 would hit the rear surface opposite the front surface inside the main body 110 and tend to flow in the direction indicated by arrow Y, and the flow rate of Air 2 discharged from both longitudinal ends of the exhaust port 150 would be larger. In this regard, in the past, the total amount of air exhausted from the indoor opening 200 was considered important, and it was considered that there was no problem as long as the total amount of exhausted air was a predetermined value.

[0006] However, the inventors of the present invention have found that the uneven volume of exhaust air depending on the longitudinal position of the indoor opening 200 is a problem, from the standpoint that if the volume of exhaust air varies depending on the position inside a room, etc., the airflow, temperature, and humidity will vary depending on the position inside the room, etc., and this will affect the comfort of people staying in the room, etc.

[0007] In light of the above, the present invention provides a straightening type GW line box that can equalize the air volume in the longitudinal direction at an indoor opening. [Means for solving the problem]

[0008] The first invention is a rectified GW line box having a hollow box-shaped line box body and a cylindrical exhaust section connected to the line box body and exhausting conditioned air sent from the line box body, wherein the line box body is configured to have a shape approximately similar to that of the exhaust section in a plan view, and has a ceiling wall section, front and rear wall sections arranged parallel to each other, and a pair of side wall sections closing both ends in the longitudinal direction, and the portion connecting with the exhaust section is open to form a connection opening, and the exhaust section is configured to be able to be inserted and fixed inside the line box body, and has at least one unit space partitioned in a direction perpendicular to the longitudinal direction of the line box body, and in the unit space, the ceiling wall section has an air This is a straightened GW line box in which a ceiling opening, which is an opening for taking in conditioned air from an air conditioner into the inside of the line box body, is formed in substantially the center in the longitudinal direction, a cylindrical supply port is arranged in the ceiling opening for connecting to a duct connected to the air conditioner, the tip of the supply port is exposed to the unit space, and a plate-shaped member having a plurality of dispersed through holes is arranged between the tip of the supply port and the connection opening, at a predetermined distance from the tip, and the plate-shaped member overlaps with the opening surface of the supply port in a plan view and is formed in a shape larger than the opening surface, and is arranged to correspond to only a portion of the unit space in the longitudinal direction, rather than the entire unit space.

[0009] According to the configuration of the first invention, for each unit space of the line box body, a plate-shaped member is disposed between the tip of the supply port and the connection opening, spaced a predetermined distance from the tip. The plate-shaped member overlaps the opening surface of the ceiling opening in a plan view and is larger than the opening surface. This allows conditioned air flowing into the unit space from the supply port (hereinafter referred to as the "inflow airflow") to strike the plate-shaped member. The plate-shaped member has multiple through-holes. Therefore, a portion of the conditioned air flows through the through-holes toward the exhaust section, while another portion strikes the non-through-hole portion of the plate-shaped member (hereinafter referred to as the "base") and changes direction. The ceiling opening is formed substantially in the longitudinal center, and the inflow airflow flows from the supply port disposed in the ceiling opening toward the plate-shaped member. Therefore, the air pressure between the supply port and the plate-shaped member is higher in the longitudinal direction of the unit space than at other locations. The air pressure at both longitudinal ends of the unit space is relatively low. Therefore, the vector of the airflow that hits the base (hereinafter referred to as the "reflected airflow") has a directional component toward both ends. Furthermore, since the plate-like member is arranged to cover only a portion of the unit space in the longitudinal direction, rather than the entire unit space, the reflected airflow that leaves the area of ​​the plate-like member heads toward the discharge section where the air pressure is lower. Furthermore, the reflected airflow that reaches both ends of the unit space also heads toward the discharge section where the air pressure is lower. In this way, the plate-like member functions to direct a portion of the incoming airflow toward the discharge section from the center of the unit space in the longitudinal direction, and another portion toward the discharge section through a portion of the unit space other than the center. Furthermore, since the reflected airflow flows between the supply port and the plate-like member and its vector has a directional component toward both ends, it also affects the behavior of the incoming airflow flowing toward the plate-like member. In the line box body, if the direction where the supply port is located is defined as the upward direction, the direction where the discharge section is located as the downward direction, the direction of the line segment connecting the supply port and the discharge section at the shortest distance as the vertical direction, and the longitudinal direction perpendicular to the vertical direction as the horizontal direction, the incoming airflow does not proceed linearly downward, but rather, under the influence of the reflected airflow, moves toward the plate-like member with a horizontal directional component.Therefore, the incoming airflow does not pass through the through-hole in a straight line downward, but passes through the through-hole with a horizontal vector component, and continues to have a horizontal vector component after passing through the through-hole. In this way, in addition to the reflected airflows toward both ends of the line box body, the incoming airflow passing through the through-hole also has a horizontal vector component, so the volume of conditioned air discharged from the exhaust port is uniform in the longitudinal direction of the exhaust port.

[0010] A second invention is a rectifying GW line box having the configuration of the first invention, wherein the plurality of through holes are substantially uniformly distributed in the plate-like member.

[0011] According to the configuration of the second invention, even though the plate-like member has a simple configuration, the volume of conditioned air discharged from the outlet is efficiently made uniform in the longitudinal direction of the outlet.

[0012] The third invention is a rectified GW line box in which, in the configuration of the first invention, the ratio of the total area of ​​the openings formed by the multiple through holes to the total area of ​​the plate-like member is greater than 5 / 10 and less than 8 / 10.

[0013] The larger the area ratio of the through holes, the smaller the resistance to the incoming airflow. Conversely, the smaller the area ratio of the through holes, the more the incoming airflow can be redirected toward the longitudinal end. However, if the area ratio of the through holes is too large, the incoming airflow tends to pass through the plate-like member directly, resulting in excessively large airflow volume in the center of the outlet along the longitudinal direction. On the other hand, if the area ratio of the through holes is too small, the incoming airflow tends to hit the plate portion of the plate-like member, resulting in excessively large airflow volume near the longitudinal end of the outlet. However, because air is a fluid with a certain viscosity, the area ratio of the through holes and the proportion of the incoming air passing through do not necessarily coincide. In this regard, the inventors of the present invention discovered that if the area ratio of the through holes to the total area of ​​the plate-like member is between 5 / 10 and 8 / 10, the resistance to the incoming airflow is not excessive and the unevenness of the volume of conditioned air discharged along the longitudinal direction of the outlet can be reduced.

[0014] The fourth invention is a rectified GW line box, in the configuration of the first invention, in which the plate-shaped member is positioned at a distance in the range of 3 centimeters (cm) to 15 centimeters (cm) from the tip of the supply port.

[0015] Typically, a supply port connected to a duct that delivers conditioned air is connected to the front or rear wall of the line box body. Therefore, the height of the line box body, i.e., the height of the front and rear walls, requires at least the diameter of the supply port and the thickness of the front and rear walls, and is anywhere between 200 and 400 millimeters (mm). In contrast, in the present invention, the supply port is connected to the ceiling wall, and the height of the front and rear walls that determine the height of the line box body is not limited. In the present invention, the height of the line box can be determined within a necessary and sufficient range depending on the function of the line box body. In the configuration of the present invention, the height of the line box body is, for example, anywhere between 120 and 250 millimeters (mm). In the configuration of the present invention, when the plate-shaped member is positioned very close to the supply port, the incoming airflow passing through the through holes in the plate-shaped member is hardly affected by the reflected airflow, and therefore the incoming airflow passing through the through holes passes linearly downward through the plate-shaped member, reducing the degree to which the volume of conditioned air discharged from the exhaust port is uniform in the longitudinal direction. Conversely, when the plate-shaped member is positioned too far from the supply port, the incoming airflow tends to change direction toward the longitudinal end of the plate-shaped member before reaching it, and much of the airflow tends to miss the plate-shaped member, preventing the plate-shaped member from functioning effectively. In this regard, the inventors of the present invention discovered that when the plate-shaped member is positioned at a distance between 3 centimeters (cm) and 15 centimeters (cm) from the tip of the supply port, much of the incoming airflow hits the plate-shaped member, affecting the flow direction of the incoming airflow and allowing the plate-shaped member to function effectively.

[0016] The fifth invention is a rectified GW line box, in the configuration of the first invention, wherein the plate-like member is positioned substantially midway between the tip of the supply port and the connection opening.

[0017] According to the configuration of the fifth invention, the plate-shaped member is positioned substantially midway between the tip of the supply port on the main body side and the connection opening, so that the plate-shaped member is spaced apart from the tip of the supply port located at the ceiling opening in order to function properly.

[0018] The sixth invention is a rectified GW line box having the configuration of the first invention, wherein the ceiling opening has a shape having a longitudinal direction that coincides with the longitudinal direction of the line box body when viewed in a plane, and the longitudinal length is formed to be longer than the width length perpendicular to the longitudinal direction.

[0019] According to the configuration of the sixth aspect of the invention, the ceiling opening can control the range in which the incoming airflow flows to a predetermined range in the width direction, and the incoming airflow can be effectively directed toward the plate-like member.

[0020] The seventh invention is a straightening type GW line box in the configuration of the first invention, in which the opening area of ​​the supply port is smaller than the opening area of ​​the duct that sends conditioned air from the air conditioner to the line box body.

[0021] According to the seventh aspect of the present invention, the flow velocity of the incoming airflow can be made faster than the flow velocity of the conditioned air in the duct, thereby enabling the airflow to be efficiently sent to a wider area in the room via the exhaust section.

[0022] The eighth invention is a rectified GW line box having the configuration of the first invention, in which the plate-like member is formed so that the supply port is directed upward and the discharge port is directed downward, and when attached to the line box body, the heights of both ends are substantially equal, and when viewed from the side, it is formed in a straight shape, or a bent shape so that both ends are low and the center is high, or a curved shape so that both ends are low and the center is high.

[0023] In order to distribute the incoming airflow evenly in the longitudinal direction of the line box body, Various shapes can be used for the plate-like member. A straight, flat plate shape in a plan view has the advantage of being simple in structure. A bent or curved shape with both ends lower and the center higher has the advantage of being able to easily direct the incoming airflow toward the ends in the longitudinal direction.

[0024] The ninth invention is a rectified GW line box having the configuration of the first invention, which has a square frame member having substantially the same length as the longitudinal length of the line box main body and for reinforcing the fixed positional relationship of the ceiling wall portion, the front wall portion, and the rear wall portion, the discharge portion having front and rear plate portions that form the longitudinal direction and are arranged parallel to each other, the front and rear plate portions have rectangular portions that protrude outside the discharge portion in a direction substantially perpendicular to the height direction, a portion of the discharge portion in the height direction is inserted into the line box main body in a manner that contacts the front wall portion and the rear wall portion of the line box main body, the rectangular portion is configured to contact the side portions of the front wall portion and the rear wall portion, thereby determining the positional relationship between the discharge portion and the line box main body, and the rectangular portion is configured to be sandwiched between the side portions of the front wall portion and the rear wall portion and the square frame member, thereby maintaining the fixed state of the discharge portion and the line box main body.

[0025] According to the configuration of the ninth aspect of the invention, the rectangular portion determines the positioning of the discharge portion and the line box body, and the square frame member fixes the discharge portion and the line box body.

[0026] The tenth invention is a rectified GW line box having the configuration of the first invention, wherein the line box body has side wall portions that close both longitudinal ends, and the portions near both longitudinal ends of the ceiling wall portion, the front wall portion, and the rear wall portion are formed lower and have a step relative to the wall bases that are the other parts of the ceiling wall portion, the front wall portion, and the rear wall portion, and the side wall portions are positioned by the side surfaces of the wall bases of the ceiling wall portion, the front wall portion, and the rear wall portion and the portions near both ends.

[0027] According to the tenth aspect of the present invention, the side walls can be positioned by the configuration of the ceiling wall, front wall, and rear wall themselves, so no other members are required for positioning, which also makes it possible to reduce the weight of the line box body.

[0028] The eleventh invention is a rectified GW line box in the configuration of the first invention, wherein, when considering the plate-shaped member as having a plurality of imaginary lines evenly arranged in the longitudinal direction of the plate-shaped member, a plurality of imaginary lines evenly arranged in the lateral direction of the plate-shaped member, and the intersections of the imaginary lines in the longitudinal direction and the lateral direction, adjacent through holes are not arranged at adjacent intersections in either the longitudinal direction or the lateral direction, but at intersections next to adjacent intersections.

[0029] According to the configuration of the eleventh invention, the mechanical strength of the plate-shaped member is ensured and deformation is avoided in both the longitudinal and lateral directions, compared to when adjacent through holes are arranged at adjacent intersections, and the original function and effect of the plate-shaped member can be exerted. [Effects of the Invention]

[0030] The straightening type GW line box according to the present invention can make the air volume uniform in the longitudinal direction at the indoor opening. [Brief explanation of the drawings]

[0031] [Figure 1] 1 is a schematic perspective view of a rectifying GW line box according to a first embodiment of the present invention. FIG. [Figure 2] This is a schematic perspective view showing the internal structure of a rectifying GW line box. [Figure 3] FIG. 2 is a schematic perspective view showing the main components that make up the line box body. [Figure 4] FIG. 2 is a schematic plan view showing the main components that make up the line box body. [Figure 5] FIG. 1 is a schematic perspective view showing the components that form the main components that make up the line box body. [Figure 6] FIG. 1 is a conceptual diagram of a cross section of a microduct board. [Figure 7] This is a conceptual diagram of a microduct board with a notch formed in its cross section. [Figure 8] 10 is a schematic perspective view showing a partition plate that divides the line box body in the longitudinal direction. FIG. [Figure 9] FIG. 2 is a schematic perspective view showing members constituting a partition plate. [Figure 10] FIG. 2 is a schematic diagram of a side wall portion that constitutes the line box body. [Figure 11] FIG. 2 is a schematic perspective view showing a supply port. [Figure 12] FIG. 2 is a schematic view showing members that configure a supply port. [Figure 13] FIG. 2 is a schematic perspective view showing a blade member that constitutes a supply port. [Figure 14] FIG. 2 is a schematic diagram showing a component that is the basis of the blade component. [Figure 15] 2A and 2B are a schematic perspective view, a schematic plan view, and a schematic enlarged view showing a plate-shaped member. [Figure 16] 1A and 1B are a schematic side view showing a plate-shaped member and a schematic view showing a plate-shaped member according to a reference embodiment. [Figure 17] 10 is a schematic perspective view showing a corner frame member for reinforcing corners along the longitudinal direction of the line box body. FIG. [Figure 18] FIG. 2 is a schematic diagram showing a base member of the square frame member. [Figure 19] 10 is a schematic perspective view showing an end frame member for reinforcing the longitudinal end of the line box body. FIG. [Figure 20] FIG. 10 is a schematic perspective view showing a U-shaped member for reinforcing the fixation of the square frame member. [Figure 21] FIG. 2 is a schematic perspective view showing a hanging member for hanging a line box. [Figure 22] FIG. 2 is a schematic perspective view showing a bolt that constitutes the hanging member. [Figure 23] FIG. 1 is a conceptual diagram showing the internal structure of a bolt. [Figure 24] FIG. 4 is a schematic diagram showing members that configure a discharge section. [Figure 25] FIG. 4 is a schematic diagram showing members that configure a discharge section. [Figure 26] FIG. 4 is a conceptual diagram showing members that configure a discharge section. [Figure 27] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 28] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 29] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 30] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 31] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 32] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 33] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 34] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 35] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 36] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 37] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 38] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 39] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 40] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 41] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 42] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 43] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 44] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 45] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 46]1 is a schematic diagram showing a method for manufacturing a line box. [Figure 47] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 48] 1 is a schematic diagram showing a method for manufacturing a line box. [Figure 49] A schematic cross-sectional view of the line box in a direction perpendicular to the longitudinal direction. [Figure 50] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 51] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 52] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 53] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 54] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 55] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 56] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 57] FIG. 10 is a schematic perspective view of a rectifying GW line box according to a second embodiment of the present invention. [Figure 58] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 59] FIG. 10 is a schematic perspective view showing a plate-shaped member used in a rectifying GW line box according to a third embodiment of the present invention. [Figure 60] 1 is a schematic side view of a plate-shaped member. [Figure 61] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 62] FIG. 10 is a schematic perspective view showing a plate-shaped member used in a rectifying GW line box according to a fourth embodiment of the present invention. [Figure 63] 1 is a schematic side view of a plate-shaped member. [Figure 64] FIG. 10 is a schematic explanatory diagram showing the effect of the line box. [Figure 65]10A and 10B are schematic explanatory diagrams showing the effects of a conventional line box. DETAILED DESCRIPTION OF THE INVENTION

[0032] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Note that the description will be limited to the basic configuration of the present invention, and will omit explanations of configurations that can be implemented by those skilled in the art.

[0033] First Embodiment <Outline of rectifier type GW line box> With reference to Figures 1 and 2, the outline of the configuration of a rectifier type GW line box 1 (hereinafter referred to as "line box 1") will be described. Figure 1 is a schematic perspective view showing the line box 1. Figure 2 is a schematic perspective view showing the outside of the line box 1 with dotted lines to show the internal structure. In the drawings attached to this specification, the outside is appropriately shown with dotted lines to show the internal structure. In this specification, when explaining each figure, unless a specific direction is specified, the view viewed from the direction of arrow Z1 in Figure 1 is referred to as the plan view. In addition, when explaining each figure, unless a specific direction is specified, the direction indicated by arrow Z in Figure 1 is referred to as the up-down direction.

[0034] As shown in FIG. 1, the line box 1 has a line box main body 10 (hereinafter referred to as "main body 10") and an exhaust section 50 connected to the main body 10. The main body 10 is formed in the shape of a hollow box that is long in one direction. The exhaust section 50 is formed as a cylindrical member having a longitudinal direction, and exhausts the conditioned air sent from the main body 10.

[0035] The discharge unit 50 is formed in a cylindrical shape that is open in the vertical direction perpendicular to the longitudinal direction. The discharge unit 50 is formed in a substantially rectangular shape in a plan view seen from the direction of arrow Z1. The two long sides of the substantially rectangular shape of the discharge unit 50 are arranged parallel to each other.

[0036] An insulating sheet 36 is disposed on the outer periphery of the discharge portion 50 in a manner that makes contact with the main body 10. The sheet 36 is a sheet formed from foamed plastic, for example, an adhesive insulating tape formed from foamed plastic. The dimensions of the adhesive insulating tape are, for example, 75 millimeters (mm) wide and 3 millimeters (mm) thick.

[0037] The main body 10 is a hollow box-like member having a substantially rectangular parallelepiped shape. In a plan view, the main body 10 is configured to have a shape substantially similar to that of the discharge section 50. The portion of the main body 10 that connects to the discharge section 50 is open to form a connection opening, allowing gas to pass through. A supply port 40 is arranged in the ceiling portion of the main body 10 on the opposite end from the discharge section 50 in the vertical direction. The supply port 40 allows conditioned air A1 (hereinafter referred to as "incoming airflow A1") sent from the air conditioner via duct 202 to be taken into the main body 10.

[0038] The inflow airflow A1 entering the main body 10 through the supply port 40 is rectified inside the main body 10 and discharged as the discharge airflow A2. The air constituting the inflow airflow A1 is, for example, air whose temperature and humidity have been adjusted by an air conditioner. In this specification, "rectification" means expanding the range through which the inflow airflow A1 flows. Due to the structure of the main body 10 in this embodiment, the flow rate of the inflow airflow A1 is uniformly adjusted in the longitudinal direction of the main body 10. As a result, there is no significant difference in the air volume of the discharge airflow A2 at any position in the longitudinal direction of the discharge section 50.

[0039] As shown in FIG. 2 , the main body 10 is divided into unit spaces S1 and S2 by a partition plate 16. A supply port 40 is provided for each unit space S1 and S2, and a plate-shaped member 70 is horizontally disposed below the supply port 40. A plurality of through-holes are formed in the plate-shaped member 70 and are substantially uniformly distributed. In a plan view, the plate-shaped member 70 overlaps with the opening of the supply port 40 and is formed larger than the opening. The plate-shaped member 70 is disposed so as to correspond to only a portion of the unit space S1 or S2 in the longitudinal direction, rather than the entire unit space S1 or S2. Due to the above-described structure of the main body 10, a portion of the incoming airflow A1 passes through the through-holes in the plate-shaped member 70 and is discharged from the discharge section 50 as the discharge airflow A2. Another portion of the incoming airflow A1 changes direction when it hits the plate-shaped member 70, flows toward the discharge section 50 from a portion where the plate-shaped member 70 is not present, and is discharged as the discharge airflow A2.

[0040] In the first embodiment, the opening area of ​​the duct 200 that sends conditioned air from the air conditioner to the line box body and the opening area of ​​the supply port 40 are substantially the same.

[0041] <Major components constituting the main body 10> The main components that make up the main body 10 will be described below with reference to FIGS.

[0042] Fig. 3 is a schematic perspective view showing the main member 12, which is the most important member constituting the main body 10. Fig. 4 is a plan view showing the main member 12. In Figs. 3 and 4, the direction indicated by arrow Y is called the longitudinal direction, and the direction perpendicular to arrow Y on the paper is called the width direction. When the main body 10 is assembled, the side of the main member 12 that is visible in Figs. 3 and 4 is the inside of the main body 10, and the side that is not visible is the outside. Furthermore, the portions that become unit spaces S1 and S2 of the main body 10 after assembly are also called unit spaces S1 and S2 when the main member 12 is in the state of being.

[0043] 3 and 4, the main member 12 is composed of a ceiling wall portion 12a and front and rear wall portions 12b and 12c that are arranged parallel to each other. The front and rear wall portions 12b and 12c are formed symmetrically with respect to the ceiling wall portion 12a. When the line box 1 is manufactured and installed in a building or the like, the front wall portion 12b is visible from the front (see FIG. 1).

[0044] A groove 12d is formed between the top wall 12a and the front wall 12b, and a groove 12e is formed between the top wall 12a and the rear wall 12c. When assembling the main body 10, the front wall 12b is folded toward the front of the paper in FIG. 4 with the groove 12d as the boundary, and the rear wall 12c is folded toward the front of the paper with the groove 12e as the boundary. The width w3 of the front wall 12b and the width w4 of the rear wall 12c are the same, and the width w2 of the top wall 12a is smaller than the widths w3 and w4. The widths w3 and w4 are between 120 mm and 250 mm, and in this embodiment, for example, are 200 mm. The width w2 is, for example, 190 mm. This results in the main body 10 having a shape that is larger in the vertical direction than in the width direction.

[0045] The ceiling wall 12a is composed of a ceiling base 12as and an outer periphery (near both ends) 12ac. The main part of the ceiling wall 12a is the ceiling base 12as, and outer periphery 12ac is formed at both ends of the ceiling base 12as in the longitudinal direction. The ceiling base 12as is formed to have a step in the thickness direction (the direction of width w1 in Figure 5) relative to the outer periphery 12ac, making it higher. This step forms side surfaces 12af, which are the side surfaces of the ceiling base 12as. In the present invention, the ceiling base 12as and the front wall base 12bs and rear wall base 12cs described below are collectively referred to as the "wall bases" in the present invention.

[0046] A groove 12ab is formed in the center of the ceiling base 12as in the longitudinal direction. Furthermore, in each of the unit spaces S1 and S2, a ceiling opening 12aa is formed in the center of the ceiling base 12as in the longitudinal direction. The ceiling opening 12aa is an opening for taking conditioned air from the air conditioner into the main body 10, and a supply port 40 is fitted into the ceiling opening 12aa. In a plan view, the ceiling opening 12aa has a shape whose longitudinal direction coincides with the longitudinal direction of the main body 10, and is formed so that its longitudinal length is longer than its width.

[0047] Furthermore, through holes 12ad are formed in the ceiling base 12as near both ends in the longitudinal direction, and hanging members 41 (see FIGS. 21 to 23) described below are placed in the through holes 12ad.

[0048] The front wall portion 12b is composed of a front wall base portion 12bs and an outer periphery portion (portions near both ends) 12bc. The main portion of the front wall portion 12b is the front wall base portion 12bs, and outer periphery portions 12bc are formed at both ends of the front wall base portion 12bs in the longitudinal direction. The front wall base portion 12bs is formed to have a step in the thickness direction (the direction of width w1 in Figure 5) relative to the outer periphery portion 12bc, making it higher. This step forms a side surface 12bf, which is the side surface of the front wall base portion 12bs. In addition, a groove portion 12bb and a notch 12ba are formed in the front wall base portion 12bs.

[0049] The rear wall portion 12c is composed of a rear wall base portion 12cs and an outer periphery portion (portions near both ends) 12cc. The main portion of the rear wall portion 12c is the rear wall base portion 12cs, and outer periphery portions 12cc are formed at both longitudinal ends of the rear wall base portion 12cs. The rear wall base portion 12cs is formed to have a step in the thickness direction (the direction of width w1 in Figure 5) relative to the outer periphery portion 12cc, making it higher. This step forms side surfaces 12cf, which are the side surfaces of the rear wall base portion 12cs. In addition, groove portions 12cb and notches 12ca are formed in the rear wall base portion 12cs.

[0050] The side wall portion 18 (see FIG. 10) is fixed by the outer peripheral portion 12ac, the outer peripheral portion 12bc, the outer peripheral portion 12cc, and the side surface 12af, the side surface 12bf, and the side surface 12cf. The partition plate 16 (see FIG. 8) is fixed by the groove portion 12ab, the groove portion 12bb, and the groove portion 12cb. The widths of the groove portion 12ab, the groove portion 12bb, and the groove portion 12cb are substantially the same as the width (w1×2) of the partition plate 16. When the main body 10 is assembled, the front wall portion 12b and the rear wall portion 12c are folded toward the front of the page with respect to the ceiling wall portion 12a, and the portions between the side wall portions 18A and 18B at both ends and the partition plate 16 become unit spaces S1 and S2 (see FIGS. 4 and 36). The unit spaces S1 and S2 are configured symmetrically with respect to the partition plate 16.

[0051] The ceiling opening 12aa is formed in each of the unit spaces S1 and S2 at substantially the center in the longitudinal direction of the ceiling wall 12a. As shown in Fig. 4, a distance L3 from the grooves 12ab, 12bb, and 12cb to one end of the ceiling opening 12aa is substantially the same as a distance L4 from the other end of the ceiling opening 12aa to the outer circumferential portion 12ac.

[0052] The notch 12ba is formed in the front wall portion 12b of each of the unit spaces S1 and S2 at a substantially central portion in the longitudinal direction. Similarly, the notch 12ca is formed in the rear wall portion 12c of each of the unit spaces S1 and S2 at a substantially central portion in the longitudinal direction.

[0053] The notches 12ba and 12ca are notches extending in the longitudinal direction of the main member 12 (the direction indicated by arrow Y). When the main body 10 is assembled, the distance w5 is the distance from the tip of the supply port 40, which is flush with the ceiling base 12as of the ceiling wall 12a. This distance (hereinafter referred to as the "displacement distance") is defined as the distance at which the conditioned air flowing in from the supply port 40 strikes the plate-shaped member 70 and becomes a reflected airflow, applying complex external forces to the conditioned air, and uniforming the volume of the air discharged in the longitudinal direction of the exhaust port 50. The distance is between 3 cm and 15 cm. In this embodiment, the notches 12ba and 12ca are formed substantially in the center of the width of the front wall 12b and the rear wall 12c, respectively. For example, the distance w5 and the distance w6 are the same for the notch 12ca. The distance w5 and the distance w6 are approximately 10 centimeters (cm).

[0054] The length L2 of the cutouts 12ba and 12ca is longer than the length L1 of the ceiling opening 12aa. The cutouts 12ba and 12ca allow the plate-like members 70 (see FIGS. 15 and 16) to be positioned in the unit spaces S1 and S2.

[0055] The main member 12 is manufactured by cutting the microduct board into plate-shaped intermediate members 12pre shown in Fig. 5 and then cutting the intermediate members 12pre. For example, the outer periphery of the intermediate members 12pre is cut to a position that is 50% of the thickness w1 to form outer periphery portions 12ac, 12bc, and 12cc.

[0056] Microduct boards are also called glass boards. Microduct boards are plate-shaped materials made by solidifying glass fibers with thermosetting resin and finishing the outer layer with aluminum foil reinforced with glass yarn. Figure 6 is a schematic cross-sectional view of microduct board 17. Microduct board 17 has a black nonwoven fabric layer 17a, an adhesive layer 17b, a glass wool layer 17c, an adhesive layer 17d, and a surface layer 17e. Glass wool layer 17c is formed by solidifying glass fibers with thermosetting resin. Surface layer 17e is aluminum foil reinforced with glass yarn. Adhesive layer 17b secures nonwoven fabric layer 17a and glass wool layer 17c, and adhesive layer 17d secures glass wool layer 17c and surface layer 17e.

[0057] The nonwoven fabric layer 17a forms the inner surface of the main body 10, and the surface layer 17e forms the outer surface of the main body 10.

[0058] Microduct boards have excellent heat insulation and soundproofing properties, allowing them to transport air quietly without significantly changing the air temperature. Microduct boards are also lightweight, much lighter than the steel plates typically used in ducts. The microduct board of this embodiment weighs approximately 64 kilograms per cubic meter (kg / m3). If the components formed from the microduct board in this embodiment were made of metal steel plate, the weight would be approximately 35% heavier. The thickness (w1) of the microduct board is 25 millimeters (mm). In this embodiment, for example, the MDB24 microduct board from Mag Isover Co., Ltd. is used.

[0059] Fig. 7 is a conceptual diagram showing a cross section of the grooves 12d and 12e in the width direction. As shown in Fig. 7, the microduct board 17 is cut at a 45-degree angle from the nonwoven fabric layer 17a toward the surface layer 17e, leaving only the surface layer 17e, or only the surface layer 17e and the adhesive layer 17d.

[0060] The partition plate 16 shown in FIG. 8 is formed by bonding two original members 16pre shown in FIG. 9. The original members 16pre are manufactured by cutting a micro duct board similar to the main member 12. The front surface 16c1 of the original members 16pre is a nonwoven fabric layer 17a, and the back surface 16c2 is a surface layer 17e. As shown in FIG. 8, the back surfaces 16c2 of the two original members 16pre are bonded together to form the partition plate 16. As a result, both the front and back surfaces of the partition plate 16 are the front surface 16c1 of the original members 16pre, i.e., the nonwoven fabric layer 17a.

[0061] The partition plate 16 is composed of a base portion 16a and a protruding portion 16b. The width w16b of the protruding portion 16b is smaller than the width w16a of the base portion 16a. The overall height of the partition plate 16 is h16, and the thickness is twice w1.

[0062] The side walls 18A and 18B shown in Figure 10 are formed by cutting the microduct board 17. The side walls 18A and 18B have a width w18 and a height h18. The height h18 is equal to the height h16 of the partition board 16. The front surfaces 18a of the side walls 18A and 18B coincide with the nonwoven fabric layer 17a of the microduct board 17, and the back surfaces 18b coincide with the front surface layer 17e.

[0063] <About the supply port> The supply port 40 will be described with reference to FIGS. 11 and 12. The supply port 40 shown in FIG. 11 is a cylindrical member as a whole, and is composed of a cylindrical main body 40a and blade portions 40b. The supply port 40 is formed by processing a metal plate. The metal plate is, for example, a galvanized steel plate (Z18) having a thickness of 0.6 millimeters (mm) to 2.3 millimeters (mm). In this embodiment, the thickness of the metal plate is 0.6 millimeters (mm).

[0064] Fig. 12(a) is a schematic perspective view of the cylindrical main body 40a, and Fig. 12(b) is a schematic plan view of the cylindrical main body 40a as viewed from the direction of arrow Z2. The opening surface of the cylindrical main body 40a is formed in a shape similar to the ceiling opening 12aa of the ceiling wall portion 12a. The shape of the cylindrical main body 40a is smaller than the ceiling opening 12aa by the amount of the metal plate that forms the cylindrical main body 40a.

[0065] 12(a) and 12(b), the cylindrical body 40a is formed in a shape in which the opening surface has a longitudinal direction, that is, the length L40 is greater than the width w40.

[0066] Fig. 13 is a schematic perspective view showing blade portion 40b, and Fig. 14 is a schematic view showing original part 40bpre from which blade portion 40b is manufactured. Original part 40bpre is a member having a longitudinal direction and is formed into a rectangular shape in the plan view shown in Fig. 14. As indicated by arrow Y1, blade portion 40b is formed by bending upper part 40ba at a right angle toward lower part 40bb, with center line 40bc as the boundary. Two blade portions 40b are manufactured for each supply port 40.

[0067] As will be described later, the supply port 40 is inserted into the ceiling opening 12aa from the outer surface side of the ceiling wall 12a. At this time, the blades 40b abut against the outer surface of the ceiling wall 12a, and the supply port 40 is positioned relative to the ceiling wall 12a. When the main body 10 is assembled, the tip 40aa of the supply port 40 is exposed inside the unit spaces S1 and S2.

[0068] <About plate-shaped components (punched metal)> The plate-shaped member 70 will be described with reference to FIGS. 15 and 16. As shown in FIG. 15, the plate-shaped member 70 is composed of a plate-shaped base 70a and a plurality of through holes 70b. The plate-shaped member 70 is formed by processing a metal plate. The metal plate is, for example, a zinc-plated steel plate (Z18) having a thickness of 0.6 millimeters (mm) to 2.3 millimeters (mm). In this embodiment, the thickness of the metal plate is 0.6 millimeters (mm). The plate-shaped member 70 is manufactured by cutting the metal plate to the outer shape of the plate-shaped member 70 and then forming a plurality of through holes 70b.

[0069] The plurality of through holes 70b are substantially uniformly distributed in the plate-shaped member 70. As will be described later, the plate-shaped member 70 is fixed with its longitudinal ends inserted into the grooves 12ba of the front wall portion 12b and the grooves 12ca of the rear wall portion 12c. The portion of the main surface of the plate-like member 70 (the surface shown in FIG. 15(b)) that is exposed inside the line box 1 when the line box 1 is completed (see FIG. 2) is the portion with width w71 in FIG. 15(b). When the main body 10 is assembled, the plate-like member 70 is arranged so that, in a plan view, it overlaps with the opening surface of the supply port 40, is longer than the longitudinal direction of the supply port 40, and corresponds to only a portion of the longitudinal direction of the unit space S1 or S2, rather than the entirety of it.

[0070] In this embodiment, the length L70 of the plate-shaped member 70 in the longitudinal direction (the direction indicated by the arrow Y) is longer than the length L40 of the supply port 40. The width of the plate-shaped member 70 is width w70, and the width exposed when the main body 10 is assembled is width w71. Width w71 is greater than width w40 of the supply port 40. The width ((w70-w71) / 2) of both ends of the plate-shaped member 70 along the longitudinal direction is 12.5 millimeters (mm). When the main body 10 is assembled, both ends of the plate-shaped member 70 along the longitudinal direction fit into grooves 12ba and 12ca (see FIGS. 3 and 4) and are fixed in a manner sandwiched between the front wall 12b and the rear wall 12c. The depth of grooves 12ba and 12ca is 12.5 millimeters (mm). Therefore, the width w71 of the portion of the plate-like member 70 exposed to the unit spaces S1 and S2 is the same as the width w2 of the ceiling wall portion 12a.

[0071] In the plate-shaped member 70, the ratio (M70b / M70) of the total area M70b of the openings formed by the multiple through holes 70b to the area M70 of the entire plate-shaped member 70 is between 5 and 8 / 10. In this embodiment, the ratio (M70b / M70) is 6 / 10.

[0072] FIG. 15(c) is a schematic enlarged view of a portion of the plate-shaped member 70 shown in FIG. 15(b). In FIG. 15(c), imaginary lines A1 to A13 are lines along the longitudinal direction of the plate-shaped member 70 and are arranged at equal intervals. Imaginary lines B1 to B7 are lines along the lateral direction of the plate-shaped member 70 and are arranged at equal intervals. The imaginary lines A1 to A13 and the imaginary lines B1 to B7 intersect at right angles to form a grid. The through holes 70b are arranged at the intersections of imaginary lines A1, B1, etc. However, in both the longitudinal and lateral directions, adjacent through holes 70b are not arranged at adjacent intersections. In both the longitudinal and lateral directions, adjacent through holes 70b are not arranged at adjacent intersections, but at intersections next to adjacent intersections. As a result, adjacent intersections 70b are spaced a distance d1 in the longitudinal direction and a distance d11 in the lateral direction. That is, the plate-shaped bases 70a are spaced apart by distances d1 and d11, ensuring sufficient mechanical strength. Unlike the present embodiment, if adjacent through-holes 70b are disposed at adjacent intersections, only the distance d2 can be ensured in the longitudinal direction, and only the distance d12 can be ensured in the lateral direction. That is, since only the plate-shaped bases 70a having distances d2 and d12 can be ensured, the mechanical strength is poor.

[0073] The plate-like member 70 is formed into a flat plate shape overall. In the main body 10, the plate-like member 70 is arranged so that the heights of both ends are substantially equal in the side view shown in FIG. 16(a), and is formed into a linear shape. The arrangement of the through holes 70b described above ensures mechanical strength. In the line box 1, the airflow hits the plate-like member 70 from the direction of arrow Z2, but the plate-like member 70 maintains its shape and can disperse the airflow in the longitudinal direction as shown by arrows Z11 and Z12.

[0074] In contrast, in the plate-shaped member 70X of the reference embodiment shown in FIG. 16(b), adjacent through holes 70b are arranged at adjacent intersections when the grid pattern is similar to that shown in FIG. 15(c). Therefore, the distance between adjacent through holes 70b is shorter in both the longitudinal and lateral directions than in the plate-shaped member 70 of the above-described embodiment, resulting in inferior mechanical strength. Therefore, as shown in FIG. 16(c), when an airflow strikes the plate-shaped member 70X from the direction of arrow Z2, the plate-shaped member 70X tends to deform convexly in the same direction as arrow Z2. As a result, the airflow striking the plate-shaped member 70X is less likely to disperse in the longitudinal direction, as indicated by arrows Z21 and Z22, and instead tends to flow toward the center. However, this invention does not exclude the configuration of the plate-shaped member 70X.

[0075] <About square frame components> The square frame member 30 shown in Fig. 17 is formed by processing the original member 30pre shown in Fig. 18. The original member 30pre is formed by processing a metal plate. The metal plate is, for example, a zinc-plated steel plate (Z18) having a thickness of 0.6 millimeters (mm) to 2.3 millimeters (mm). In this embodiment, the thickness of the metal plate is 0.6 millimeters (mm).

[0076] The original member 30pre is a member having a longitudinal direction, and is formed into a rectangular shape in the plan view shown in Fig. 18. As indicated by arrow Y1, the upper portion 30a is bent at a right angle toward the lower portion 30b with respect to the center line 30c to form the square frame member 30. Four square frame members 30 are manufactured for one line box 1.

[0077] <About end frame components> The end frame member 32 shown in FIG. 19 is formed by processing a metal plate similar to the above-described square frame member 30. Two end frame members 32 are manufactured for one line box body 10. The two end frame members 32 are designated end frame members 32A and 32B and are collectively referred to as end frame member 32. The end frame member 32 is composed of a front wall portion 32a having a rectangular through-hole 32s formed therein, and side wall portions 32b to 32e. The side wall portions 32b to 32e are formed continuously with the four sides that form the outer periphery of the front wall portion 32a and are formed perpendicular to the front wall 32a.

[0078] <About the U-shaped member> The U-shaped member 34 will be described with reference to Figure 20. The U-shaped member 34 is formed by processing a metal plate similar to the square frame member 30 described above. The U-shaped member 34 is formed of a rectangular base portion 34a having a longitudinal direction in a plan view, and upright portions 34b and 34c that are formed by bending perpendicularly from both ends of the base portion 34a. The upright portions 34b and 34c are bent in the same direction relative to the base portion 34a. Through holes 34p are formed near both ends of the base portion 34a and near the upper ends of the upright portions 34b and 34c to pass through screws for connecting to other members.

[0079] <About hanging components> 21 to 23 are schematic diagrams showing a hanging member 41 for hanging the line box 1 from a structure inside the ceiling of a building. The hanging member 41 is composed of plate-shaped members 42 and 44 and a bolt member 46.

[0080] 21, the plate-shaped member 42 is composed of a rectangular main surface portion 42a and side surface portions 42b and 42c that are bent downward at a 45-degree angle from the main surface portion 42a. A through-hole 42s is formed in the center of the main surface portion 42a. The plate-shaped member 44 is a rectangular member and has a through-hole 44s formed in the center.

[0081] The bolt member 46 is composed of an outer periphery bolt 46a, a shaft bolt 46b, an outer periphery bolt nut 46d, and an shaft bolt nut 46c. Fig. 22 is a schematic perspective view of the outer periphery bolt 46a as viewed from above and below. Fig. 23 is a conceptual diagram showing the internal structure of the outer periphery bolt 46a. The outer periphery bolt 46a is formed by injection molding a resin. As shown in Fig. 22, the outer periphery bolt 46a has a cylindrical central portion 46aa and enlarged diameter portions 46ab formed at the ends in the longitudinal direction. A screw 46c is formed on the outer periphery of the central portion 46aa. Furthermore, a through hole 46as is formed in the central portion 46aa.

[0082] The screws 46ac on the outer periphery are not shown in Fig. 23. As shown in Fig. 23, a through hole 46as is formed in the outer periphery bolt 46a.

[0083] The shaft bolt 46b and the shaft bolt nut 46c are made of metal. The shaft bolt 46b is composed of a shaft portion 46ba and a screw 46bb. The length of the shaft portion 46ba is sufficiently longer than the length of the outer periphery bolt 46a.

[0084] The length of the center portion 46aa of the outer periphery bolt 46a is greater than the combined thickness of the ceiling base 12as of the ceiling wall portion 12a, the plate-shaped member 42, and the plate-shaped member 44. With the through-holes 44s, 42s, and 12ad aligned between the plate-shaped members 42 and 44, the center portion 46aa penetrates from the through-hole 44s side toward the through-hole 42s, and the outer periphery bolt nuts 46d contact the main surface 42a of the plate-shaped member 42, and the outer periphery bolts are fixed by the outer periphery bolt nuts 46d. Then, the shank bolt 46b is inserted into the through-hole 46as of the outer periphery bolt 46a. The portion of the shank bolt 46b protruding from the ceiling wall portion 12a is fixed to the inner structure of the building's ceiling.

[0085] <About the discharge section> The discharge section 50 is composed of a front plate section 50A shown in Fig. 24, a rear plate section 50B shown in Fig. 25, and a side plate section 60 shown in Fig. 26. The side plate section 60 is composed of side plate members 60A and 60B. The front plate section 50A, the rear plate section 50B, and the side plate members 60A and 60B are formed by processing metal plates similar to those used for the above-mentioned square frame member 30, etc.

[0086] As shown in Fig. 24, the front plate portion 50A is composed of a first plate member 52 and a second plate member 54. In the plan view shown in Fig. 24, the first plate member 52 and the second plate member 54 are formed in a substantially rectangular shape with a length L3 before the main body 10 is assembled. The length L3 is substantially the same as the length L12 (see Fig. 4) of the main member 12 excluding the outer peripheral portions 12ac, 12bc, and 12cc. To be precise, the length L3 is shorter than the length L12 by twice the thickness of the metal plate (approximately 1.2 millimeters).

[0087] The second plate member 54 is composed of a main portion 54a and a rectangular portion 54b. When the first plate member 52 and the second plate member 54 are fixed together, the rectangular portion 54b of the second plate member 54 is bent at a 90-degree angle relative to the main portion 54a toward the back of the paper along a boundary line 54L between the main portion 54a and the rectangular portion 54b. Thereafter, as shown by arrow Y3, the main portion 54a of the second plate member 54 is fixed by welding to the back side of the paper of the first plate member 52 in such a manner that the lower end 54aa of the main portion 54a overlaps the lower end 52b of the first plate member 52.

[0088] As shown in Fig. 25, the rear plate portion 50B is composed of a third plate member 56 and a fourth plate member 58. Before the main body 10 is assembled, the third plate member 56 and the fourth plate member 58 are formed in a substantially rectangular shape with a length L4 in the plan view shown in Fig. 25. The length L4 is equal to the length L3 of the front plate portion 50A described above.

[0089] The fourth plate member 58 is composed of a main portion 58a and a rectangular portion 58b. When the third plate member 56 and the fourth plate member 58 are fixed together, the rectangular portion 58b of the fourth plate member 58 is bent at a 90-degree angle relative to the main portion 58a toward the front of the paper along a boundary line 58L between the main portion 58a and the rectangular portion 58b. Thereafter, as indicated by arrow Y4, the main portion 58a of the fourth plate member 58 is fixed by welding to the front of the paper of the third plate member 56 in such a manner that a lower end 58aa of the main portion 58a overlaps a lower end 56b of the third plate member 56.

[0090] 26, the side plates 60A and 60B each include a central portion 60a and side portions 60b and 60c. In the manufacturing process of the line box 1, the side portions 60b and 60c are bent at an angle of 90 degrees relative to the central portion 60a toward the front of the paper in FIG.

[0091] <About the assembly process of Line Box 1> 27 to 49, the assembly process of the line box 1 will be described below. Note that in the assembly process of the line box 1, the up-down direction of each member constituting the line box 1 is reversed from the state in which the line box 1 is attached to the structure (see FIGS. 1 and 2).

[0092] For the main member 12 shown in FIG. 27, as shown in FIG. 28, hanging members 41 such as plate-like members 42 and 44 are arranged on the ceiling wall portion 12a.

[0093] Figure 29 is a schematic cross-sectional view taken along line AA in Figure 28, showing how the hanging members 41, including the plate-like members 42 and 44, are attached to the ceiling wall portion 12a. As shown in Figure 29, the positions of the through holes 44s, 42s, and 12ad are aligned, and the ceiling wall portion 12a is sandwiched between the plate-like members 42 and 44 in the thickness direction of the ceiling wall portion 12a. The center portion 46aa of the outer periphery bolt 46a is inserted and engaged with the through holes 44s and 42s, and is fixed by the outer periphery bolt nut 46d. At this time, the rectangular main surface portion 42a of the plate-like member 42 contacts the surface of the ceiling base portion 12as of the ceiling wall portion 12a, and the side surface portions 42b and 42c of the plate-like member 42 contact the surfaces of the grooves 12d and 12e. That is, the side surfaces 42b and 42c of the plate-shaped member 42 sandwich the ceiling base 12as in the width direction, thereby preventing the plate-shaped member 42 from rotating inside the line box 1 when the line box 1 is attached to a building.

[0094] Next, as shown in FIG. 30, the supply port 40 is inserted from below (outside) into the ceiling opening 12aa (see FIG. 27) of the ceiling wall 12a. The tip 40aa (see FIG. 11) of the cylindrical body 40a of the supply port 40 is inserted from the outside toward the inside of the ceiling wall 12a, and is fixed in place with the blades 40b abutting the outer surface of the ceiling wall 12a. At this time, the tip 40aa is at the same height as the ceiling base 12as in the thickness direction of the ceiling wall 12a. In other words, the tip 40aa is flush with the ceiling base 12as, with no step.

[0095] Next, as shown in FIGS. 31 and 32, the partition plate 16 is temporarily fixed to the groove 12ab (see FIG. 27) of the ceiling wall portion 12a.

[0096] Next, as shown in FIG. 33, the plate-like member 70 is temporarily fixed to the groove 12ba of the front wall portion 12b.

[0097] Next, as shown in Figures 34 and 35, the front wall 12b and the rear wall 12c are folded at a right angle relative to the ceiling wall 12a. As a result, the partition plate 16 is fixed in a state where it is inserted into the groove 12ab of the ceiling wall 12a, the groove 12bb of the front wall 12b, and the groove 12cb of the rear wall 12c. Furthermore, the plate-like member 70 is fixed in a state where it is inserted into the groove 12ba of the front wall 12b and the groove 12ca of the rear wall 12c.

[0098] Next, as shown in Figure 36, side walls 18A and 18B are arranged at both longitudinal ends of top wall 12a, front wall 12b, and rear wall 12c, with surface 18a facing the inside of main body 10. Periphery 12ac of top wall 12a and side 12af of top base 12as, periphery 12bc of front wall 12b and side 12bf of front base 12bs, and periphery 12cc of rear wall 12c and side 12cf of rear base 12cs contact bottom 18c and side 18d and 18e of side walls 18A and 18B (see Figure 10). The state shown in Figure 36 is called box body 10A.

[0099] Next, as shown in Figure 37, end frame members 32A and 32B are placed over both ends of box body 10A in Figure 36. The state in Figure 37 is called box body 10B. As shown in Figure 37, the top of box body 10 is open, forming a connection opening 12s with a width w12 and a length L12.

[0100] Next, as shown in FIGS. 38 to 41, the front plate portions 50A and 50B that constitute the discharge portion 50 are assembled.

[0101] 38, the second plate member 54 of the front plate portion 50A is bent at a right angle relative to the main portion 54a, toward the back of the page, along a boundary line 54L between the main portion 54a and the rectangular portion 54b. In a configuration in which a lower end 54aa of the main portion 54a overlaps a lower end 52b of the first plate member 52, the main portion 54a of the second plate member 54 is fixed to the back side of the page of the first plate member 52 (see FIG. 39). For example, the first plate member 52 and the second plate member 54 are spot-welded at a plurality of positions 52p on the first plate member 52 and a plurality of positions 54p on the second plate member 54.

[0102] 40, the fourth plate member 58 of the rear plate portion 50B has the rectangular portion 58b bent at a right angle relative to the main portion 58a toward the front side of the paper along a boundary line 58L between the main portion 58a and the rectangular portion 58b. In a configuration in which a lower end 58aa of the main portion 58a overlaps a lower end 56b of the third plate member 56, the main portion 58a of the fourth plate member 58 is fixed to the front side of the paper of the third plate member 56 (see FIG. 41). For example, the third plate member 56 and the fourth plate member 58 are spot-welded at a plurality of positions 56p on the third plate member 56 and a plurality of positions 58p on the fourth plate member 58.

[0103] Next, as shown in FIGS. 42 and 43 , the front plate 50A, the rear plate 50B, and the side plate portions 60A and 60B are connected to form the discharge portion 50. The side plate portion 60A is fixed to the front plate 50A and the rear plate 50B with the side portions 60b and 60c of the side plate portion 60A contacting one end of the front plate 50A and the rear plate 50B from the outside, respectively. For the side plate portion 60A, multiple positions 60q on the side portion 60c are spot-welded to multiple positions 52p on the front plate 50A, and multiple positions 60p on the side portion 60b are spot-welded to multiple positions 56q on the rear plate 50B. Similarly, for the side plate portion 60B, multiple positions 60p on the side portion 60b are spot-welded to multiple positions 52p on the front plate 50A, and multiple positions 60q on the side portion 60c are spot-welded to multiple positions 56q on the rear plate 50B. As shown in FIG. 43, the side portions 60b and 60c of the side plate portions 60A and 60B are located above the rectangular portions 54b and 58b. The width of the discharge portion 50 is width w50, which is substantially the same as the width w12 (see FIG. 37) between the front wall portion 12b and the rear wall portion 12c of the box body 10B. The length of the discharge portion 50 is length L50, which is substantially the same as the length L12 (see FIG. 37) between the side wall portions 18A and 18B of the box body 10B. In other words, the width w50 of the discharge portion 50 is the same as the width w12 of the connection opening 12s, and the length L50 of the discharge portion 50 is the same as the length L12 of the connection opening 12s.

[0104] Next, as shown in Figures 44 and 45, the ejection part 50 is attached to the box body 10B. The ejection part 50 is inserted into the box body 10B through the connection opening 12s of the box body 10B up to the positions of the rectangular parts 54b and 58b of the ejection part 50. This brings the rectangular part 54b into contact with the side surface 12bg of the front wall part 12b, and the rectangular part 58b into contact with the side surface 12cg of the rear wall part 12c. This state is called box body 10C (see Figure 45).

[0105] Next, four corner frame members 30 are fixed to the box body 10C of Fig. 45 to form the box body 10D (see Fig. 46). Specifically, the corner members 30 are fixed to the end frame members 32A and 32B with screws.

[0106] Next, the U-shaped member 34 is connected to the box body 10D (see FIG. 47). As described above, the U-shaped member 34 is formed of a rectangular base portion 34a having a longitudinal direction in a plan view, and upright portions 34b and 34c formed by bending perpendicularly from both ends of the base portion 34a (see FIG. 20). As shown in FIG. 47, the base portion 34a of the U-shaped member 34 connects the two lower square frame members 30 in FIG. 47. The upright portions 34b and 34c of the U-shaped member 34 connect the two lower square frame members 30 to the two upper square frame members. The U-shaped member 34 and the four square frame members 30 are fixed with screws. Note that in this embodiment, one U-shaped member 34 is disposed, but the number is not limited, and may be, for example, two, three or more.

[0107] Thereafter, adhesive is used to connect the components as needed, and then the sheet 36 is fixed to the outer periphery of the discharge section 50 of the box body 10D, completing the line box 1 (see FIG. 48). The adhesive is, for example, a vinyl acetate resin emulsion wood bond. Furthermore, a sealant is applied between the components as needed. The sealant is, for example, a nitrile rubber duct sealer.

[0108] Figure 49 is a schematic cross-sectional view of the line box 1 of Figure 48 taken along line BB. That is, a schematic cross-sectional view of a portion including the supply port 40 and the plate-like member 70. Note that the "upper end" and "lower end" in the description referring to Figure 49 are based on the top and bottom on the plane of Figure 49. Because Figure 49 is a schematic cross-sectional view, notation of screws, adhesive, etc. is omitted.

[0109] 49, blade portions 40b of supply port 40 are in contact with the inner circumferential surface of ceiling opening 12aa in ceiling wall portion 12a and the outer surface of ceiling wall portion 12a. Blade portions 40b are in contact with the two lower square frame members 30 and are fixed to ceiling wall portion 12a.

[0110] The plate-like member 70 is fixed by being sandwiched between the front wall portion 12b and the rear wall portion 12c while being engaged with the groove portion 12ba of the front wall portion 12b and the groove portion 12ca of the rear wall portion 12c.

[0111] The rectangular portion 54b of the discharge portion 50 contacts the inner surface and side surface of the front wall portion 12b, and the rectangular portion 58b contacts the inner surface and side surface of the rear wall portion 12c. The rectangular portions 54b and 58b are fixed to the front wall portion 12b and the rear wall portion 12c by the frame members 30, respectively, thereby fixing the discharge portion 50 to the main body 10.

[0112] <Effects of Line Box 1> The effect of the line box 1 will be described with reference to Figures 50 to 56. As shown in Figure 50, the line box 1 is placed in an opening 200 formed in Room C, which is the ceiling. The line box 1 is placed in Room C in a state upside down from the state shown in Figure 48 during the manufacturing process. When conditioned air Air1 is supplied to the supply port 40 of the line box 1, the range in which the conditioned air Air1 flows in the longitudinal direction of the line box 1 expands inside the line box 1, and the conditioned air Air1 becomes exhaust air Air2 and is supplied to Room M, which is the room. This will be described in detail below.

[0113] 51, inside the main body 10 of the line box 1, the conditioned air Air1 supplied from the supply port 40 is configured to hit the plate-shaped member 70. In other words, the plate-shaped member 70 is configured in a position, shape, and size in the line box 1 such that all of the conditioned air Air1 hits it.

[0114] 52, part of the conditioned air Air1 that hits the plate-shaped member 70 passes through the through-holes 70b of the plate-shaped member 70. When the other part of the conditioned air Air1 hits the base 70a, it changes direction to flow toward both ends in the longitudinal direction where the air pressure is lower, and then changes direction toward the exhaust port 50 and Room M where the air pressure is lower. This reduces the tendency for the conditioned air Air1 to be concentrated in the vertical direction of the supply port 40, and the volume of exhaust air is made uniform in the longitudinal direction of the opening 200.

[0115] The behavior of the conditioned air Air1 that reaches the plate-shaped member 70 will be described in detail below. As shown in Fig. 53, when a portion of the conditioned air Air1, Air11a, reaches the plate-shaped member 70, it passes through the through-holes 70b. When the other portion, Air11b, reaches the plate-shaped member 70, it hits a portion of the base 70a where no through-holes 70b are formed, and the airflow vector becomes Air11b1 (hereinafter referred to as the "reflected airflow Air11b1"). The reflected airflow Air11b1 flows toward both ends in the longitudinal direction because, in the unit spaces S1 and S2, the air pressure at both ends in the longitudinal direction is relatively lower than the air pressure in the center.

[0116] 54, the reflected airflow Air11b1 moves above the plate-shaped member 70, and therefore acts as an external force on and affects the conditioned air Air1 before it reaches the plate-shaped member 70. As a result, whether the conditioned air Air1 is Air11a passing through the through-hole 70b or Air11b hitting the base 70a, the airflow vector of the conditioned air Air1 is not linear, but rather changes direction under the influence of the reflected airflow Air11b1 and reaches the plate-shaped member 70 with a longitudinal directional component.

[0117] Specifically, as shown in FIG. 54, if we consider an area AS1 near the supply port 40 and an area AS2 near the plate-shaped member 70 above the plate-shaped member 70, in the area AS1, the conditioned air Air1 is not affected by the reflected airflow Air11b1, or if it is affected, it is only slightly. In contrast, in the area AS2, the conditioned air Air1 is greatly affected by the reflected airflow Air11b1. Therefore, even when Air11a passes through the through-hole 70b, the direction in which it passes through the through-hole 70b is not uniform, and it is discharged as airflow Air11a1 having various directional components. As a result, although the airflow discharged from the outlet 200 flows downward as a whole, focusing on that portion shows that it is composed of an airflow containing vector components in various directions, further uniforming the air volume in the longitudinal direction of the outlet 200.

[0118] Area AS1 has the function of ensuring that the conditioned air Air1 strikes the plate-shaped member 70 while maintaining its downward flow velocity by not applying an external force perpendicular to the flow direction of the inflowing conditioned air Air1. Area AS2 has the function of influxing reflected airflow Air11b1 to influence the flow direction of the conditioned air Air1 and disperse the conditioned air Air1 in the longitudinal direction of the main body 10 (unit spaces S1 and S2) in cooperation with the plate-shaped member 70. For this reason, the distance that the plate-shaped member 70 is separated from the tip 40aa of the supply port 40 is defined as the distance that allows the plate-shaped member 70 to have areas AS1 and AS2.

[0119] Here, even if the opening ratio of the plate-shaped member 70 is 5 / 10 or more and 8 / 10 or less, It will be explained that in the unit areas S1 and S2, the exhaust air does not concentrate in the direction directly below the supply port 40, and the exhaust air can be uniformly distributed in the longitudinal direction of the exhaust port 50. First, the aperture ratio of the plate-shaped member 70 is not equal to the proportion of conditioned air Air1 that passes through the through-holes 70b (hereinafter referred to as the "through-hole ratio"), but rather becomes smaller. FIG. 55 is a conceptual diagram showing the airflow angle and the through-holes 70. Air11a1 and Air11a2 shown in FIG. 55 are airflows with the same diameter as the diameter of the through-hole 70. Because Air11a1 strikes the plate-shaped member 70 in the vertical direction, all of Air11a1 passes through the through-hole 70b. In contrast, because Air11a2 strikes the plate-shaped member at an angle other than the vertical direction, not all of Air11a1, but only a portion of the airflow, i.e., wAir2, passes through the through-hole 70b, and the remaining portion, wAir3, strikes the base 70a. In this way, when the conditioned air Air1 does not strike the plate-shaped member 70 in the vertical direction, the penetration rate is smaller than the opening rate of the plate-shaped member 70. Furthermore, the fact that air is a fluid with a certain viscosity is also a factor in the smaller penetration rate.

[0120] 56, the airflow Air11b that hits the base 70a of the plate-like member 70 flows toward both longitudinal ends of the unit space S1 and toward the exhaust port 50. This is because the air pressure is lower at both longitudinal ends than at the center, and the air pressure is lower in the direction of the exhaust port 50 than above where the supply port 40 is located. Therefore, once the airflow Air11b leaves the area where the plate-like member 70 is located, it changes direction downward at various positions up to both ends and is discharged. This makes the air volume uniform in the longitudinal direction of the exhaust port 200.

[0121] The shape, size and position of the plate-like member 70 in the main body 10 are determined so that the plate-like member 70 acts on the conditioned air Air1 as described above and makes the air volume uniform in the longitudinal direction of the discharge part 50.

[0122] Second Embodiment 57 and 58, in the second embodiment, the opening area of ​​the duct 202A is larger than the opening area of ​​the supply port 40. Other than the opening areas of the duct 202A and the supply port 40, the configuration of the second embodiment is the same as that of the first embodiment.

[0123] The cross-sectional area of ​​the opening of supply port 40 is smaller than the cross-sectional area of ​​the opening of duct 202A, which has the effect of increasing the flow rate of Air 1 as it passes through supply port 40. This ensures that Air 1 hits plate-like member 70 more reliably, and also makes it easier for Air 2 from opening 200 to reach the entirety of Room M.

[0124] <Third embodiment> Except for the shape of plate-shaped member 70A, the third embodiment is the same as the first embodiment. As shown in Figures 59 and 60, plate-shaped member 70A is formed so that the heights of both ends are substantially equal when attached to main body 10, and is configured to have a bent shape so that the both ends are low and the center is high in side view when line box 1 is attached to the ceiling of a building. This has the advantage that, when plate-shaped member 70A is placed on main body 10 as shown in Figure 61, incoming airflows Air11a and Air11b can be easily sent to the ends in the longitudinal direction.

[0125] <Fourth embodiment> Except for the shape of plate-shaped member 70B, the fourth embodiment is the same as the first embodiment. As shown in Figures 62 and 63, plate-shaped member 70B is formed so that the heights of both ends are substantially equal when attached to main body 10, and is configured in a curved shape formed so that both ends are low and the center is high in side view. This has the advantage that, when plate-shaped member 70B is placed on main body 10 as shown in Figure 64, incoming airflows Air11a and Air11b can be easily sent to the ends in the longitudinal direction.

[0126] The rectifying GW line box of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. Furthermore, the above-described embodiments can be combined as appropriate as long as no technical contradiction occurs. [Explanation of symbols]

[0127] 1 Rectifier type GW line box 10 Line box body 12 Main member 12a Ceiling wall section 12aa ceiling opening 12b Front wall 12c Rear wall 16 Partition 17 Micro duct board 18 Side wall 30 Square frame member 32 End frame member 34 U-shaped member 40 Supply port 41 Hanging parts 50 Discharge section 50A front plate part 50B Rear plate part 70, 70A, 70B Plate-shaped members 202, 202A Duct

Claims

1. A rectifying type GW line box having a hollow box-shaped line box body and a cylindrical exhaust part connected to the line box body and exhausting conditioned air sent from the line box body, The line box body is In a plan view, the shape is substantially similar to that of the discharge portion, The car seat includes a ceiling wall, a front wall and a rear wall arranged parallel to each other, and a pair of side walls closing both ends in the longitudinal direction, The portion connected to the discharge part is opened to form a connection opening, and the discharge part can be inserted into the inside of the line box body and fixed thereto, The line box has at least one unit space partitioned in a direction perpendicular to the longitudinal direction of the line box body, In the unit space, a ceiling opening, which is an opening for introducing conditioned air from an air conditioner into the line box body, formed in a substantially central portion in the longitudinal direction of the ceiling wall portion; A cylindrical supply port is arranged in the ceiling opening to connect to a duct connected to an air conditioner, a tip end of the supply port is exposed to the unit space, a plate-like member having a plurality of through holes formed therein and dispersed therein is disposed between the tip of the supply port and the connection opening portion, the plate-like member being spaced a predetermined distance from the tip of the supply port; the plate-like member is formed to overlap an opening surface of the supply port in a plan view, and to have a shape larger than the opening surface, and is arranged to correspond to only a portion of the unit space in the longitudinal direction, rather than the entire unit space; Rectified GW line box.

2. The rectifying type GW line box according to claim 1 , wherein the plurality of through holes are substantially uniformly distributed in the plate-like member.

3. The rectified GW line box according to claim 1, wherein the ratio of the total area of ​​the openings formed by the plurality of through holes to the entire area of ​​the plate-like member is between 5 / 10 and 8 / 10.

4. The rectified GW line box of claim 1, wherein the plate-like member is positioned at a distance in the range of 3 centimeters (cm) to 15 centimeters (cm) from the tip of the supply port.

5. The rectified GW line box according to claim 1 , wherein the plate-like member is disposed at a position substantially midway between the tip of the supply port and the connection opening.

6. The rectified GW line box of claim 1, wherein the ceiling opening has a shape having a longitudinal direction that coincides with the longitudinal direction of the line box body in a plan view, and the longitudinal length is formed to be longer than the width length perpendicular to the longitudinal direction.

7. The rectified GW line box according to claim 1 , wherein the opening area of ​​the supply port is smaller than the opening area of ​​a duct that sends conditioned air from an air conditioner to the line box body.

8. The rectified GW line box of claim 1, wherein the plate-like member is formed so that the supply port is directed upward and the discharge port is directed downward, and when attached to the line box body, the heights of both ends are substantially equal, and when viewed from the side, the plate-like member is formed in a straight shape, a bent shape so that both ends are low and the center is high, or a curved shape so that both ends are low and the center is high.

9. a square frame member having a length substantially equal to the longitudinal length of the line box body, the square frame member reinforcing fixation of the positional relationship between the ceiling wall portion, the front wall portion, and the rear wall portion; The discharge section has a front plate section and a rear plate section that define the longitudinal direction and are arranged in parallel, The front plate portion and the rear plate portion are provided with rectangular portions that protrude outward from the discharge portion in a direction substantially perpendicular to the height direction, a part of the discharge section in the height direction is inserted into the inside of the line box body in a manner that the part is in contact with the front wall portion and the rear wall portion of the line box body, and the rectangular portion is in contact with the side portions of the front wall portion and the rear wall portion, thereby defining a positional relationship between the discharge section and the line box body; The rectified GW line box of claim 1, wherein the rectangular portion is sandwiched between the side portions of the front wall portion and the rear wall portion and the square frame member, thereby maintaining a fixed state between the discharge portion and the line box main body.

10. The line box body has side wall portions that close both ends in the longitudinal direction, the ceiling wall portion, the front wall portion, and the rear wall portion have portions near both ends in the longitudinal direction that are lower than wall base portions that are other portions of the ceiling wall portion, the front wall portion, and the rear wall portion, The rectified GW line box according to claim 1, wherein the side wall portion is configured to be positioned by the side surfaces of the wall bases of the ceiling wall portion, the front wall portion, and the rear wall portion, and by the portions near both ends.

11. 2. A rectified GW line box as described in claim 1, wherein, in the plate-shaped member, when considering a plurality of imaginary lines evenly arranged in the longitudinal direction of the plate-shaped member, a plurality of imaginary lines evenly arranged in the lateral direction of the plate-shaped member, and intersections of the imaginary lines in the longitudinal direction and the lateral direction, adjacent through holes are not arranged at adjacent intersections in either the longitudinal direction or the lateral direction, but at intersections next to adjacent intersections.

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