Rectifier-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 supplies conditioned air. [Background Art]

[0002] Conventionally, a method has been adopted in which a duct extends from an air conditioner installed in the ceiling space of a building or the like, and conditioned air is supplied into the room from a box body (line box) connected to the duct through an opening formed in each air conditioning area such as a living room (hereinafter referred to as an "indoor opening"). Generally, the opening surface of the indoor opening has a rectangular shape, and the discharge port of the line box connected to the indoor opening is also a rectangular parallelepiped matching the shape of the opening surface of the indoor opening (for example, Patent Document 1). [Prior Art Literature] [Patent Literature]

[0003] [Patent Document 1] Japanese Patent Laid-Open No. 2003-56895 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] As shown in FIG. 65, generally, the line box is configured to include a hollow main body 100 and a cylindrical discharge port 150. Typically, for a rectangular indoor opening 200, the discharge port 150 is formed in a rectangular parallelepiped cylindrical shape so as to match the indoor opening 200. For example, the line box 1 is arranged in the ceiling space so that conditioned air is discharged from the indoor opening 200 formed in the ceiling Room C. When conditioned air Air 1 is supplied to the opening 110 in the ceiling portion of the line box 1, the conditioned air Air 1 passes through the inside of the main body 100 and the discharge port 150, becomes discharged air Air 2, and is supplied into the indoor Room M.

[0005] Inside the main unit 100, Air 1 spreads out towards the ends of the longitudinal direction where the air pressure is lower (in the direction indicated by arrow Y), and passes through the indoor opening 200 towards Room M. However, since most of Air 1 tends to flow directly below the opening 110, there is a bias in the flow rate of Air 2 along the longitudinal direction of the outlet 150. If the opening 110 is formed on the front (the side facing the viewer) rather than the ceiling, Air 1 will hit the rear surface opposite the front inside the main unit 110 and tend to flow strongly in the direction of arrow Y, and the flow rate of Air 2 will instead increase from both ends of the longitudinal direction of the outlet 150. In this regard, conventionally, the total amount of exhaust air from the indoor opening 200 has been considered important, and it was thought that there was no problem as long as the total amount of exhaust air was within a predetermined value.

[0006] However, the inventors of the present invention have identified the problem that the amount of exhausted air is uneven depending on the position in the longitudinal direction of the interior opening 200, from the viewpoint that if the amount of air discharged differs depending on the location inside a living room, for example, the airflow, temperature, and humidity will differ depending on the location inside the living room, affecting the comfort of people staying in the living room.

[0007] Based on the above, the present invention provides a flow-rectifying GW line box that can equalize the airflow in the longitudinal direction at an indoor opening. [Means for solving the problem]

[0008] The first invention is a flow-rectifying GW line box having a hollow box-shaped line box body and a cylindrical discharge section connected to the line box body for discharging conditioned air sent from the line box body, wherein the line box body is configured to be substantially similar in shape to the discharge section in a plan view, and has a ceiling wall section, a front wall section and a rear wall section arranged parallel to each other, and a pair of side wall sections that close both ends in the longitudinal direction, and the part that connects to the discharge section is open to form a connection opening, and is configured so that the discharge section can be inserted and fixed inside the line box body, and has at least one unit space that is separated in a direction perpendicular to the longitudinal direction of the line box body, and in the unit space, the ceiling wall section is empty A line box made of straightening glass wool is provided, wherein a ceiling opening, which is an opening for taking conditioned air from a ventilator into the main body of the line box, is formed in substantially the central part in the longitudinal direction, a cylindrical supply port for connecting to a duct connected to an air conditioner is provided in the ceiling opening, the tip of the supply port is exposed to the unit space, and a plate-like member is provided between the tip of the supply port and the connection opening, with a plurality of through holes dispersed thereon at a predetermined distance from the tip, the plate-like member is formed in a shape that overlaps with the opening surface of the supply port in a plan view and is larger than the opening surface, and is provided so as to correspond to only a part of the longitudinal direction of the unit space, not the whole.

[0009] According to the configuration of the first invention, in each unit space of the line box body, a plate-shaped member is arranged between the tip of the supply port and the connection opening, separated by a predetermined distance from the tip. In a plan view, the plate-shaped member overlaps with the opening surface of the ceiling opening and is formed to be larger than the opening surface. As a result, the conditioned air flowing into the unit space from the supply port (hereinafter referred to as "inflow airflow") strikes the plate-shaped member. Multiple through holes are formed in the plate-shaped member. Therefore, a portion of the conditioned air passes through the through holes and heads towards the discharge section, while another portion strikes the non-through-hole portion of the plate-shaped member (hereinafter referred to as "base") and changes direction. The ceiling opening is formed in the substantially central part in the longitudinal direction, and the inflow airflow flows from the supply port located in the ceiling opening towards the plate-shaped member. Therefore, at a position in the longitudinal direction of the unit space, the air pressure between the supply port and the plate-shaped member is higher than at other positions. The air pressure is relatively lower at both ends in the longitudinal direction of the unit space. Therefore, the vector of the airflow hitting the base (hereinafter referred to as "reflected airflow") has a directional component toward both ends. Furthermore, since the plate-shaped member is positioned to correspond to only a portion of the longitudinal direction of the unit space, rather than the entire length, the reflected airflow that leaves the area of ​​the plate-shaped member is directed toward the discharge side where the pressure is lower, and furthermore, the reflected airflow that reaches both ends of the unit space is also directed toward the discharge side where the pressure is lower. In this way, the plate-shaped member functions to direct a portion of the inflow airflow from the central part of the longitudinal direction of the unit space toward the discharge side, and another portion is directed toward the discharge side through the part of the unit space other than the central part in the longitudinal direction. In addition, since the reflected airflow flows between the supply port and the plate-shaped member, and its vector has a directional component toward both ends, it also affects the behavior of the inflow airflow flowing toward the plate-shaped member. In the line box body, if the direction in which the supply port is located is upward and the direction in which the discharge port is located is downward, and the direction of the line segment connecting the supply port and the discharge port in the shortest possible way is defined as the vertical direction, and the longitudinal direction perpendicular to the vertical direction is defined as the horizontal direction, then the incoming airflow does not proceed linearly downward, but is affected by the reflected airflow and has a horizontal directional component as it heads towards the plate-shaped member.Therefore, the incoming airflow does not pass through the through-hole in a straight line downwards, but rather passes through the through-hole with a horizontal vector component, and retains a horizontal vector component even after passing through the through-hole. In this way, in addition to the reflected airflow directed toward both ends of the line box body, the incoming airflow passing through the through-hole also has a horizontal vector component, so the airflow of conditioned air discharged from the outlet is made uniform along the longitudinal direction of the outlet.

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

[0011] According to the configuration of the second invention, despite the simple structure of the plate-shaped member, the airflow of conditioned air discharged from the outlet is efficiently made uniform in the longitudinal direction of the outlet.

[0012] The third invention is a flow-rectifying GW line box in which, in the configuration of the first invention, the ratio of the total area of ​​the openings formed by the plurality of through holes to the total area of ​​the plate-shaped member is between 5 / 10 and 8 / 10.

[0013] The larger the proportion of the through-hole area, the less resistance it imposes on the flow of the incoming airflow. Conversely, the smaller the proportion of the through-hole area, the more advantageous it is to be able to change the flow of the incoming airflow and direct it towards the ends in the longitudinal direction. However, if the proportion of the through-hole area is too large, the incoming airflow tends to pass directly through the plate-like member, resulting in a problem where the airflow in the central part of the longitudinal direction of the outlet becomes too large. On the other hand, if the proportion of the through-hole area is too small, the incoming airflow tends to hit the plate portion of the plate-like member, resulting in a problem where the airflow near the ends of the longitudinal direction of the outlet becomes too large. However, since air is a fluid with a certain viscosity, the proportion of the through-hole area and the proportion of incoming air passing through it do not necessarily coincide. In this regard, the inventors of the present invention have found that if the ratio of the through-hole area to the total area of ​​the plate-like member is between 5 / 10 and 8 / 10, the resistance to the flow of the incoming airflow is not excessive, and moreover, the unevenness in the airflow of the conditioned air discharged in the longitudinal direction of the outlet can be reduced.

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

[0015] Generally, the supply port connected to the 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 a height within the range of 200 mm to 400 mm. In contrast, in the present invention, the supply port is connected to the ceiling wall, and the configuration does not restrict the height of the front and rear walls that define the height of the line box body. In the present invention, the height of the line box can be defined 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, a value between 120 mm and 250 mm. In the configuration of the present invention, when the position of the plate-shaped member is very close to the supply port, the incoming airflow passing through the through-hole of the plate-shaped member is hardly affected by the reflected airflow. As a result, the incoming airflow passing through the through-hole passes linearly downward through the plate-shaped member, and the degree to which the airflow volume of conditioned air discharged from the outlet in the longitudinal direction is uniform is reduced. Conversely, when the position of the plate-shaped member is excessively far from the supply port, the incoming airflow tends to change direction toward the longitudinal end side before reaching the plate-shaped member, resulting in a large amount of airflow that does not hit the plate-shaped member, thus preventing the plate-shaped member from functioning effectively. In this regard, the inventors of the present invention have found that when the plate-shaped member is positioned at a distance of any distance between 3 centimeters (cm) and 15 centimeters (cm) from the tip of the supply port, a large portion of the incoming airflow hits the plate-shaped member, influencing the direction of the incoming airflow and allowing the plate-shaped member to function effectively.

[0016] The fifth invention is a flow-rectifying GW line box in which, in the configuration of the first invention, the plate-shaped 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 main body side of the supply port and the connecting opening, and is therefore separated from the tip of the supply port located in the ceiling opening in order for the plate-shaped member to function properly.

[0018] The sixth invention is a flow-rectifying GW line box in which, in the configuration of the first invention, the ceiling opening has a shape that, in a plan view, has a longitudinal direction that coincides with the longitudinal direction of the line box body, and the length in the longitudinal direction is greater than the length in the width direction perpendicular to the longitudinal direction.

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

[0020] The seventh invention is a line box made of straightened glass wool, in which, in the configuration of the first invention, 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 configuration of the seventh invention, the flow velocity of the incoming airflow can be accelerated to a higher velocity than the flow velocity of the conditioned air in the duct. This allows the airflow to be efficiently delivered to a wider area of ​​the room via the discharge section.

[0022] The eighth invention is a flow-rectifying GW line box in the configuration of the first invention, wherein the plate-shaped member is oriented with the supply port facing upward and the discharge port facing downward, and is formed such that when attached to the line box body, the heights of both ends are substantially equal, and in a side view, it is formed in a straight shape, or a bent shape with both ends lower and the center higher, or a curved shape formed with both ends lower and the center higher.

[0023] In order to uniformly distribute the incoming airflow along the longitudinal direction of the line box body, Various shapes can be adopted as the plate-shaped member. A linear flat plate shape in plan view has the advantage of a simple structure. A shape bent or curved such that both end portions are low and the central portion is high has the advantage that an incoming airflow can be easily sent to the end side in the longitudinal direction.

[0024] In a ninth aspect of the present invention, in the configuration of the first aspect of the invention, the flow rectification type GW-made line box has a square frame member having a length substantially the same as the length of the line box main body in the longitudinal direction, for reinforcing and fixing the positional relationship among the ceiling wall portion, the front wall portion and the rear wall portion, the discharge portion constitutes the longitudinal direction and includes a front plate portion and a rear plate portion arranged in parallel, a rectangular portion protruding outward of the discharge portion in a direction substantially perpendicular to the height direction is disposed on the front plate portion and the rear plate portion, a part of the discharge portion in the height direction is inserted into the interior of the line box main body in a state of being in contact with the front wall portion and the rear wall portion of the line box main body, the positional relationship between the discharge portion and the line box main body is defined by the rectangular portion being in contact with the side portions of the front wall portion and the rear wall portion, and the fixed state between the discharge portion and the line box main body is maintained by the rectangular portion being sandwiched between the side portions of the front wall portion and the rear wall portion and the square frame member.

[0025] According to the configuration of the ninth aspect of the invention, the positioning between the discharge portion and the line box main body is performed by the rectangular portion, and the discharge portion and the line box main body are fixed by the square frame member.

[0026] In a tenth aspect of the present invention, in the configuration of the first aspect of the invention, the flow rectification type GW-made line box is configured such that the line box main body has side wall portions closing both end portions in the longitudinal direction, portions near both longitudinal ends of the ceiling wall portion, the front wall portion and the rear wall portion are formed lower with a step difference relative to wall base portions which are other portions 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 base portions of the ceiling wall portion, the front wall portion and the rear wall portion and the portions near the both ends.

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

[0028] The eleventh invention is a flow-rectifying GW line box, wherein, in the configuration of the first invention, a plurality of virtual lines are evenly arranged in the longitudinal direction of the plate-shaped member, a plurality of virtual lines are evenly arranged in the short direction of the plate-shaped member, and when considering the intersections of the virtual lines in the longitudinal direction and the virtual lines in the short direction, adjacent through holes are located not at adjacent intersections, but at intersections adjacent to adjacent intersections, in both the longitudinal and short directions.

[0029] According to the configuration of the eleventh invention, the mechanical strength of the plate-like member is ensured and deformation is avoided, both in the longitudinal and transverse directions, compared to the case where adjacent through holes are arranged at adjacent intersections, and the plate-like member can exert its intended effects. [Effects of the Invention]

[0030] According to the rectifier-type GW line box of the present invention, the airflow in the longitudinal direction at the indoor opening can be made uniform. [Brief explanation of the drawing]

[0031] [Figure 1] This is a schematic perspective view of a rectifier-type GW line box according to the first embodiment of the present invention. [Figure 2] This is a schematic perspective view showing the internal structure of a rectifier-type GW line box. [Figure 3] This is a schematic perspective view showing the main components that make up the line box body. [Figure 4] This is a schematic plan view showing the main components that make up the line box body. [Figure 5] This is a schematic perspective view showing the basic components that make up the main parts of the line box body. [Figure 6] This is a conceptual diagram of a cross-section of a microduct board. [Figure 7] This is a conceptual diagram showing a notch formed in the cross-section of a microduct board. [Figure 8] This is a schematic perspective view showing the partition plates that divide the main body of the line box in the longitudinal direction. [Figure 9] This is a schematic perspective view showing the components that make up the partition plate. [Figure 10] This is a schematic diagram of the side wall section that makes up the main body of the line box. [Figure 11] This is a schematic perspective view showing the supply port. [Figure 12] This is a schematic diagram showing the components that make up the supply port. [Figure 13] This is a schematic perspective view showing the blade members that make up the supply port. [Figure 14] This is a schematic diagram showing the components that form the basis of the blade members. [Figure 15] These are schematic perspective views, schematic plan views, and schematic enlarged views showing plate-shaped members. [Figure 16] This is a schematic side view showing a plate-shaped member, and a schematic diagram showing a plate-shaped member according to a reference embodiment. [Figure 17] This is a schematic perspective view showing corner frame members for reinforcing the corners along the longitudinal direction of the line box body. [Figure 18] This is a schematic diagram showing the components that form the basis of the square frame members. [Figure 19] This is a schematic perspective view showing end frame members for reinforcing the longitudinal ends of the line box body. [Figure 20] This is a schematic perspective view showing a U-shaped member for reinforcing the fixing of a corner frame member. [Figure 21] This is a schematic perspective view showing the suspension components for suspending a line box. [Figure 22] This is a schematic perspective view showing the bolts that make up the suspension component. [Figure 23] This is a conceptual diagram showing the internal structure of a bolt. [Figure 24] This is a schematic diagram showing the components that make up the discharge section. [Figure 25] This is a schematic diagram showing the components that make up the discharge section. [Figure 26] This is a conceptual diagram showing the components that make up the discharge section. [Figure 27] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 28] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 29] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 30] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 31] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 32] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 33] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 34] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 35] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 36] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 37] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 38] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 39] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 40] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 41] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 42] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 43] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 44] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 45] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 46]This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 47] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 48] This is a schematic diagram illustrating the manufacturing process of a line box. [Figure 49] This is a schematic cross-sectional view of the line box in a direction perpendicular to the longitudinal direction. [Figure 50] This is a schematic diagram illustrating the effects of a line box. [Figure 51] This is a schematic diagram illustrating the effects of a line box. [Figure 52] This is a schematic diagram illustrating the effects of a line box. [Figure 53] This is a schematic diagram illustrating the effects of a line box. [Figure 54] This is a schematic diagram illustrating the effects of a line box. [Figure 55] This is a schematic diagram illustrating the effects of a line box. [Figure 56] This is a schematic diagram illustrating the effects of a line box. [Figure 57] This is a schematic perspective view of a rectifier-type GW line box according to a second embodiment of the present invention. [Figure 58] This is a schematic diagram illustrating the effects of a line box. [Figure 59] A schematic perspective view showing a plate-shaped member used in a flow-rectifying GW line box according to a third embodiment of the present invention. [Figure 60] This is a schematic side view of the plate-shaped member. [Figure 61] This is a schematic diagram illustrating the effects of a line box. [Figure 62] This is a schematic perspective view showing a plate-shaped member used in a rectifier-type GW line box according to a fourth embodiment of the present invention. [Figure 63] This is a schematic side view of the plate-shaped member. [Figure 64] This is a schematic diagram illustrating the effects of a line box. [Figure 65]This is a schematic diagram illustrating the effects and capabilities of a conventional line box. [Modes for carrying out the invention]

[0032] Preferred embodiments of the present invention will be described below with reference to the drawings. Configurations that can be appropriately implemented by those skilled in the art will be omitted from the description, and only the basic configuration of the present invention will be described.

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

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

[0035] The discharge section 50 is formed in a cylindrical shape with openings in the vertical direction perpendicular to the longitudinal direction. In a plan view from the direction of arrow Z1, the discharge section 50 is formed in a substantially rectangular shape. The two long sides of the substantially rectangular shape of the discharge section 50 are arranged parallel to each other.

[0036] A heat insulating sheet 36 is arranged on the outer circumferential surface of the discharge section 50 in a manner that it is in contact with the main body 10. The sheet 36 is made of foamed plastic, for example, an adhesive heat insulating tape made of foamed plastic. The dimensions of the adhesive heat insulating tape are, for example, 75 millimeters (mm) in width and 3 millimeters (mm) in thickness.

[0037] The main body 10 is a hollow, box-shaped component, approximately a rectangular parallelepiped. In plan view, the main body 10 is configured to be approximately similar in shape to the discharge section 50. The part of the main body 10 that connects to the discharge section 50 is open, forming a connection opening that allows gas to pass through. In the main body 10, a supply port 40 is located in the ceiling portion 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 "inflow airflow A1") sent from the air conditioner via the duct 202 to be taken into the interior of the main body 10.

[0038] The incoming airflow A1 that enters the main body 10 from the supply port 40 is rectified inside the main body 10 and discharged as the outgoing airflow A2. The air constituting the incoming 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 over which the incoming airflow A1 flows. Due to the structure of the main body 10 in this embodiment, the flow rate of the incoming airflow A1 is uniformly adjusted along the longitudinal direction of the main body 10. As a result, there is no significant difference in the airflow volume of the outgoing airflow A2 at any position along the longitudinal direction of the discharge section 50.

[0039] As shown in Figure 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 positioned below the supply port 40. Multiple through holes are formed in the plate-shaped member 70, distributed substantially uniformly. In a plan view, the plate-shaped member 70 is formed to overlap with the opening surface of the supply port 40 and to be larger than the opening surface, and is positioned to correspond to only a portion of the longitudinal direction of the unit space S1 or S2, rather than the entire length. Due to the above structure of the main body 10, a portion of the inflow 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 inflow airflow A1 strikes the plate-shaped member 70, changes direction, and is discharged as the discharge airflow A2 towards the discharge section 50 from the portion where the plate-shaped member 70 is not present.

[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 is substantially the same as the opening area of ​​the supply port 40.

[0041] <Main components that make up the main body 10> The main components constituting the main body 10 will be described below with reference to Figures 3 to 10.

[0042] Figure 3 is a schematic perspective view showing the main member 12, which is the most important component of the main body 10. Figure 4 is a plan view showing the main member 12. In Figures 3 and 4, the direction indicated by arrow Y is called the longitudinal direction, and the direction perpendicular to arrow Y in the plane of 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 Figures 3 and 4 becomes the inside of the main body 10, and the side that is not visible becomes the outside. Also, the parts that become unit spaces S1 and S2 of the main body 10 after assembly are also called unit spaces S1 and S2 in the state of the main member 12.

[0043] As shown in Figures 3 and 4, the main member 12 consists of a ceiling wall section 12a and a front wall section 12b and a rear wall section 12c that are arranged parallel to each other. The front wall section 12b and the rear wall section 12c are formed symmetrically with respect to the ceiling wall section 12a. When the line box 1 is manufactured and placed in a building, the front wall section 12b is visible from the front (see Figure 1).

[0044] A groove 12d is formed between the ceiling wall portion 12a and the front wall portion 12b, and a groove 12e is formed between the ceiling wall portion 12a and the rear wall portion 12c. When assembling the main body 10, the front wall portion 12b is folded towards the front of the paper in Figure 4 with respect to the ceiling wall portion 12a, with the groove 12d as the boundary, and the rear wall portion 12c is folded towards the front of the paper with respect to the groove 12e as the boundary. The width w3 of the front wall portion 12b and the width w4 of the rear wall portion 12c are the same, and the width w2 of the ceiling wall portion 12a is smaller than the widths w3 and w4. The widths w3 and w4 are values ​​between 120 millimeters (mm) and 250 millimeters (mm), and in this embodiment, for example, they are 200 millimeters (mm). The width w2 is, for example, 190 millimeters (mm). As a result, the main body 10 has a shape in which the vertical direction is larger than the width direction.

[0045] The ceiling wall section 12a is composed of a ceiling base 12as and an outer peripheral section (near both ends) 12ac. The main part of the ceiling wall section 12a is the ceiling base 12as, and the outer peripheral section 12ac is formed at both ends of the ceiling base 12as in the longitudinal direction. The ceiling base 12as is formed to be higher than the outer peripheral section 12ac, with a step in the thickness direction (direction of width w1 in Figure 5). This step forms the side surface 12af, which is the side surface of the ceiling base 12as. In this invention, the ceiling base 12as and the front wall base 12bs and rear wall base 12cs described later are collectively referred to as the "wall base".

[0046] A groove 12ab is formed in the center of the ceiling base 12as in the longitudinal direction. In addition, a ceiling opening 12aa is formed in the center of the ceiling base 12as in the longitudinal direction in each of the unit spaces S1 and S2. The ceiling opening 12aa is an opening for taking conditioned air from the air conditioner into the interior of the main body 10, and a supply port 40 is fitted into it. 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 its length in the longitudinal direction is longer than its length in the width direction.

[0047] Furthermore, through holes 12ad are formed in the ceiling base 12as near both ends in the longitudinal direction. The suspension members 41 (see Figures 21 to 23), which will be described later, 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 peripheral portion (near both ends) 12bc. The main part of the front wall portion 12b is the front wall base portion 12bs, and the outer peripheral portion 12bc is formed at both ends of the front wall base portion 12bs in the longitudinal direction. The front wall base portion 12bs is formed to be higher than the outer peripheral portion 12bc, with a step in the thickness direction (direction of width w1 in Figure 5). This step forms the 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 peripheral portion (near both ends) 12cc. The main part of the rear wall portion 12c is the rear wall base portion 12cs, and the outer peripheral portion 12cc is formed at both ends of the rear wall base portion 12cs in the longitudinal direction. The rear wall base portion 12cs is formed to be higher than the outer peripheral portion 12cc, with a step in the thickness direction (direction of width w1 in Figure 5). This step forms the side surface 12cf of the rear wall base portion 12cs. In addition, a groove portion 12cb and a notch 12ca are formed in the rear wall base portion 12cs.

[0050] The side wall portion 18 (see Figure 10) is fixed by the outer periphery portions 12ac, 12bc, and 12cc, and the side surfaces 12af, 12bf, and 12cf. The partition plate 16 (see Figure 8) is fixed by the grooves 12ab, 12bb, and 12cb. The widths of the grooves 12ab, 12bb, and 12cb are substantially the same as the width of the partition plate 16 (w1 × 2). 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 paper relative to the ceiling wall portion 12a, and the space between the side wall portions 18A and 18B at both ends and the partition plate 16 becomes the unit space S1 and S2 (see Figures 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 the substantially central part of the longitudinal direction of the ceiling wall portion 12a in the unit space S1 and S2, respectively. As shown in Figure 4, the distance L3 between the grooves 12ab, 12bb, and 12cb and one end of the ceiling opening 12aa is substantially the same as the distance L4 between the other end of the ceiling opening 12aa and the outer periphery 12ac.

[0052] The notches 12ba are formed in substantially the central part of the longitudinal direction of the front wall portion 12b in each unit space S1 and S2. Similarly, the notches 12ca are formed in substantially the central part of the longitudinal direction of the rear wall portion 12c in each unit space S1 and S2.

[0053] The notches 12ba and 12ca are notches along the longitudinal direction (direction indicated by arrow Y) of the main member 12. When the main body 10 is assembled, distance w5 is the distance from the tip of the supply port 40, which is positioned flush with the ceiling base 12as of the ceiling wall portion 12a. This distance (hereinafter referred to as the "discrepancy distance") is defined as the distance required to equalize the airflow of the air discharged in the longitudinal direction of the discharge port 50 by causing the conditioned air flowing in from the supply port 40 to hit the plate-shaped member 70 and become a reflected airflow, thereby applying a complex external force to the conditioned air. The discrepancy distance is any distance within the range of 3 centimeters (cm) to 15 centimeters (cm). In this embodiment, the notches 12ba and 12ca are formed substantially in the center in the width direction of the front wall portion 12b and the rear wall portion 12c, respectively, and for example, for notch 12ca, distances w5 and w6 are the same. Distances w5 and w6 are approximately 10 centimeters (cm).

[0054] The lengths L2 of the notches 12ba and 12ca are longer than the length L1 of the ceiling opening 12aa. The notches 12ba and 12ca allow the plate-shaped members 70 (see Figures 15 and 16) to be positioned in the respective unit spaces S1 and S2.

[0055] The main component 12 is manufactured by cutting a microduct board into a plate-shaped intermediate component 12pre as shown in Figure 5, and then further machining it. For example, the outer periphery of the intermediate component 12pre is machined to a point where it is 50% of the thickness w1 to form the outer periphery 12ac, outer periphery 12bc, and outer periphery 12cc.

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

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

[0058] Microduct boards offer excellent heat insulation and soundproofing properties, allowing for quiet air transport without significantly altering air temperature. Furthermore, microduct boards are lightweight, significantly lighter than the steel plates commonly used in ducts. The microduct board in this embodiment weighs approximately 64 kilograms (kg / m3) per cubic meter. If the components formed by processing the microduct board in this embodiment were made of metal steel plates, the weight would increase by approximately 35%. The thickness w1 of the microduct board is 25 millimeters (mm). In this embodiment, for example, MDB24 microduct board from Mag-Isover Co., Ltd. is used.

[0059] Figure 7 is a conceptual diagram showing cross-sections in the width direction of grooves 12d and 12e. As shown in Figure 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 Figure 8 is formed by bonding two original members 16pre shown in Figure 9 together. The original members 16pre are manufactured by cutting a microduct board similar to that used for the main member 12. The 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 Figure 8, the back surfaces 16c2 of the two original members 16pre are bonded together to form the partition plate 16. As a result, in the partition plate 16, both the surface and the back surface are the surface 16c1 of the original members 16pre, i.e., the nonwoven fabric layer 17a.

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

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

[0063] <Regarding supply ports> The supply port 40 will be described with reference to Figures 11 and 12. The supply port 40 shown in Figure 11 is a cylindrical member as a whole, and is composed of a cylindrical body 40a and a wing portion 40b. The supply port 40 is constructed by processing a metal plate. The metal plate is, for example, a galvanized steel plate (Z18) having a thickness of 0.6 mm to 2.3 mm. In this embodiment, the thickness of the metal plate is 0.6 mm.

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

[0065] As shown in Figures 12(a) and 12(b), the cylindrical body 40a is formed in a shape where the opening surface is in the longitudinal direction. That is, the length L40 is greater than the width w40.

[0066] Figure 13 is a schematic perspective view showing the blade portion 40b, and Figure 14 is a schematic diagram showing the base member 40bpre from which the blade portion 40b is manufactured. The base member 40bpre is a member having a longitudinal direction and is formed in a rectangular shape in the plan view shown in Figure 14. As shown by arrow Y1, the blade portion 40b is formed by bending the upper part 40ba at a right angle toward the lower part 40bb side, with the 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 portion 12a. At this time, the blade portion 40b comes into contact with the outer surface of the ceiling wall portion 12a, and the supply port 40 is positioned relative to the ceiling wall portion 12a. When the main body 10 is assembled, the tip portion 40aa of the supply port 40 is exposed inside the unit spaces S1 and S2.

[0068] <Regarding plate-like materials (perforated metal)> The plate-shaped member 70 will be described with reference to Figures 15 and 16. As shown in Figure 15, the plate-shaped member 70 consists of a plate-shaped base 70a and a plurality of through holes 70b. The plate-shaped member 70 is made by processing a metal plate. The metal plate is, for example, a galvanized steel plate (Z18) having a thickness of 0.6 mm to 2.3 mm. In this embodiment, the thickness of the metal plate is 0.6 mm. The plate-shaped member 70 is manufactured by cutting the metal plate to the outer shape of the plate-shaped member 70 and further forming a plurality of through holes 70b.

[0069] In the plate-shaped member 70, the multiple through holes 70b are substantially uniformly distributed. As described later, the plate-shaped member 70 is fixed with its longitudinal end portion inserted into the groove 12ba of the front wall portion 12b and the groove 12ca of the rear wall portion 12c. On the main surface of the plate-shaped member 70 (the surface shown in Figure 15(b)), the portion exposed inside the line box 1 when the line box 1 is completed (see Figure 2) is the portion with a width w71 in Figure 15(b). When the main body 10 is assembled, the plate-shaped member 70 is positioned in a plan view such that it overlaps with the opening surface of the supply port 40, is longer than the length 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 (direction indicated by arrow Y) is longer than the length L40 of the supply port 40. The width of the plate-shaped member 70 is w70, but the width exposed when the main body 10 is assembled is w71. The width w71 is greater than the width w40 of the supply port 40. The widths ((w70-w71) / 2) of both ends of the plate-shaped member 70 along the longitudinal direction are 12.5 millimeters (mm) each. 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 Figures 3 and 4) and are fixed in a manner in which they are sandwiched between the front wall 12b and the rear wall 12c. The depths of grooves 12ba and 12ca are 12.5 millimeters (mm) each. Therefore, the width w71 of the portion of the plate-like member 70 that is 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 of the total area M70b of the openings formed by the multiple through holes 70b to the total area M70 of the plate-shaped member 70 (M70b / M70) is between 5 / 10 and 8 / 10. In this embodiment, the ratio (M70b / M70) is 6 / 10.

[0072] Figure 15(c) is a schematic enlarged view of a part of the plate-shaped member 70 shown in Figure 15(b). In Figure 15(c), the imaginary lines A1 to A13 are lines along the longitudinal direction of the plate-shaped member 70 and are arranged at equal intervals. The imaginary lines B1 to B7 are lines along the short direction of the plate-shaped member 70 and are arranged at equal intervals from each other. The imaginary lines A1 to A13 and the imaginary lines B1 to B7 are perpendicular to each other and form a grid. The through holes 70b are located at the intersections of imaginary lines A1, B1, etc. However, in both the longitudinal and short directions, adjacent through holes 70b are not located at adjacent intersections. In both the longitudinal and short directions, adjacent through holes 70b are located at the intersection next to an adjacent intersection, not at an adjacent intersection. As a result, adjacent intersections 70b have a distance d1 in the longitudinal direction and a distance d11 in the short direction. In other words, plate-shaped base portions 70a with distances d1 and d11 are secured, ensuring mechanical strength. Unlike this embodiment, if adjacent through holes 70b are placed at adjacent intersections, only a distance d2 can be secured in the longitudinal direction, and only a distance d12 can be secured in the short direction. In other words, only plate-shaped base portions 70a with distances d2 and d12 can be secured, resulting in inferior mechanical strength.

[0073] The plate-shaped member 70 is formed as a flat plate overall. In the main body 10, the plate-shaped member 70 is arranged such that the heights of both ends are substantially equal in the side view shown in Figure 16(a), and is formed in a linear shape. Mechanical strength is ensured by the arrangement of the through holes 70b described above. In the line box 1, the plate-shaped member 70 is hit by airflow from the direction of arrow Z2, but the plate-shaped 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 Figure 16(b), if we consider a grid pattern similar to that in Figure 15(c), adjacent through holes 70b are positioned at adjacent intersections. Therefore, the distance between adjacent through holes 70b is shorter than that of the plate-shaped member 70 in the above embodiment, both in the longitudinal and transverse directions, resulting in inferior mechanical strength. Consequently, as shown in Figure 16(c), when 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, and the airflow striking the plate-shaped member 70X does not easily disperse in the longitudinal direction, as shown by arrows Z21 and Z22, but rather tends to move towards the center. However, the present invention does not exclude the configuration of the plate-shaped member 70X.

[0075] <Regarding corner frame members> The square frame member 30 shown in Figure 17 is formed by processing the original member 30pre shown in Figure 18. The original member 30pre is made by processing a metal plate. The metal plate is, for example, a galvanized steel plate (Z18) having a thickness of 0.6 mm to 2.3 mm. In this embodiment, the thickness of the metal plate is 0.6 mm.

[0076] The original member 30pre is a member with a longitudinal direction and is formed as a rectangle in the plan view shown in Figure 18. As shown by arrow Y1, the upper part 30a is bent at a right angle toward the lower part 30b with respect to the center line 30c to form the corner frame member 30. Four corner frame members 30 are manufactured for each line box 1.

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

[0078] <Regarding the U-shaped member> Referring to Figure 20, the U-shaped member 34 will be described. The U-shaped member 34 is constructed 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 34a having a longitudinal direction in plan view, and upright portions 34b and 34c that are formed by bending perpendicularly from both ends of the base 34a. The upright portions 34b and 34c are bent in the same direction relative to the base 34a. Through holes 34p for passing screws to connect to other members are formed near both ends of the base 34a and near the upper ends of the upright portions 34b and 34c.

[0079] <Regarding suspension components> Figures 21 to 23 are schematic diagrams showing a suspension member 41 for suspending the line box 1 from the internal structure of the building's ceiling. The suspension member 41 consists of a plate-shaped member 42, a plate-shaped member 44, and a bolt member 46.

[0080] As shown in Figure 21, the plate-like member 42 consists of a rectangular main surface portion 42a and side 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-like member 44 is a rectangular member, and a through hole 44s is formed in the center.

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

[0082] In Figure 23, the screw threads 46ac on the outer circumference are omitted. As shown in Figure 23, a through hole 46as is formed in the outer bolt 46a.

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

[0084] The length of the central part 46aa of the outer peripheral bolt 46a is greater than the combined thickness of the ceiling base 12as of the ceiling wall portion 12a and the plate-like members 42 and 44. The central part 46aa penetrates the ceiling wall portion 12a from the through-hole 44s side toward the through-hole 42s, with the through-holes 44s, 42s, and 12ad of the plate-like members 42 and 44 aligned, and is fixed by the outer peripheral bolt nut 46d in contact with the main surface 42a of the plate-like member 42. Then, the shaft bolt 46b is inserted into the through-hole 46as of the outer peripheral bolt 46a. The portion of the shaft bolt 46b that protrudes from the ceiling wall portion 12a is fixed to the internal structure of the building's ceiling.

[0085] <Regarding the discharge section> The discharge section 50 consists of a front plate section 50A shown in Figure 24, a rear plate section 50B shown in Figure 25, and a side plate section 60 shown in Figure 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 made by processing metal plates similar to the square frame member 30 and the like described above.

[0086] As shown in Figure 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 Figure 24, the first plate member 52 and the second plate member 54 are formed in a roughly rectangular shape and have a length of L3 before assembly of the main body 10. Length L3 is substantially the same as length L12 (see Figure 4) of the main member 12, excluding the outer peripheral portions 12ac, 12bc, and 12cc. More precisely, length L3 is twice the thickness of the metal plate (approximately 1.2 millimeters) shorter than length L12.

[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 second plate member 54 is bent at a 90-degree angle toward the back of the paper relative to the main portion 54a along the boundary line 54L between the main portion 54a and the rectangular portion 54b. Then, as shown by arrow Y3, the main portion 54a of the second plate member 54 is fixed to the back of the paper of the first plate member 52 by welding, in an embodiment where the lower end 54aa of the main portion 54a overlaps with the lower end 52b of the first plate member 52.

[0088] As shown in Figure 25, the rear plate portion 50B is composed of a third plate member 56 and a fourth plate member 58. In the plan view shown in Figure 25, the third plate member 56 and the fourth plate member 58 are formed in a substantially rectangular shape and have a length L4 before the assembly of the main body 10. 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 fourth plate member 58 is bent at a 90-degree angle toward the front of the paper with respect to the main portion 58a, along the boundary line 58L between the main portion 58a and the rectangular portion 58b. Then, as shown by arrow Y4, the main portion 58a of the fourth plate member 58 is fixed to the front of the paper side of the third plate member 56 by welding, in an embodiment where the lower end 58aa of the main portion 58a overlaps with the lower end 56b of the third plate member 56.

[0090] As shown in Figure 26, the side panels 60A and 60B are composed of a central section 60a, and side sections 60b and 60c, respectively. In the manufacturing process of line box 1, the side sections 60b and 60c are folded at a 90-degree angle relative to the central section 60a in the direction towards the viewer in Figure 26.

[0091] <Regarding the assembly process of line box 1> The assembly process of line box 1 will be described below with reference to Figures 27 to 49. Note that in the assembly process of line box 1, the vertical orientation of each component constituting line box 1 is reversed compared to when line box 1 is attached to the structure (see Figures 1 and 2).

[0092] As shown in Figure 28, suspension members 41 such as plate-shaped members 42 and 44 are arranged on the ceiling wall portion 12a relative to the main member 12 shown in Figure 27.

[0093] Figure 29 is a schematic cross-sectional view of line AA in Figure 28, showing the manner in which the suspension members 41, such as plate-shaped members 42 and 44, are attached to the ceiling wall portion 12a. As shown in Figure 29, in a manner in which the positions of the through holes 44s, 42s, and 12ad coincide, the center portion 46aa of the outer peripheral bolt 46a penetrates the ceiling wall portion 12a between the plate-shaped members 42 and 44, sandwiching the ceiling wall portion 12a, and is fixed by the outer peripheral bolt nut 46d. At this time, the rectangular main surface portion 42a of the plate-shaped member 42 is in contact with the surface of the ceiling base portion 12as of the ceiling wall portion 12a, and the side portions 42b and 42c of the plate-shaped member 42 are in contact with the surfaces of the groove portions 12d and 12e. In other words, the side portions 42b and 42c of the plate-shaped member 42 sandwich the ceiling base 12as in the width direction. This prevents the plate-shaped member 42 from rotating inside the line box 1 when the line box 1 is attached to the building.

[0094] Next, as shown in Figure 30, the supply port 40 is inserted from below (outside) into the ceiling opening 12aa (see Figure 27) of the ceiling wall portion 12a. The tip portion 40aa (see Figure 11) of the cylindrical body 40a of the supply port 40 is inserted from the outside to the inside of the ceiling wall portion 12a, and is fixed in a state where the wing portion 40b abuts against the outer surface of the ceiling wall portion 12a. At this time, the tip portion 40aa is at the same height as the ceiling base portion 12as in the thickness direction of the ceiling wall portion 12a. In other words, the tip portion 40aa is flush with the ceiling base portion 12as without any step difference.

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

[0096] Next, as shown in Figure 33, the plate-shaped 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 section 12b and the rear wall section 12b are folded at a right angle to the ceiling wall section 12a. As a result, the partition plate 16 is fixed in place, fitting into the grooves 12ab of the ceiling wall section 12a, 12bb of the front wall section 12b, and 12cb of the rear wall section 12c. The plate-shaped member 70 is also fixed in place, fitting into the grooves 12ba of the front wall section 12b and 12ca of the rear wall section 12c.

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

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

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

[0101] As shown in Figure 38, the second plate member 54 of the front plate portion 50A has the rectangular portion 54b bent at a right angle toward the back of the paper relative to the main portion 54a along the boundary line 54L between the main portion 54a and the rectangular portion 54b. In an embodiment in which the lower end 54aa of the main portion 54a overlaps with the 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 first plate member 52 (see Figure 39). For example, the first plate member 52 and the second plate member 54 are spot welded at multiple positions 52p of the first plate member 52 and multiple positions 54p of the second plate member 54.

[0102] Similarly, as shown in Figure 40, the fourth plate member 58 of the rear plate portion 50B is bent at a right angle toward the front of the paper relative to the main portion 58a, along the boundary line 58L between the main portion 58a and the rectangular portion 58b. In an embodiment where the lower end 58aa of the main portion 58a overlaps with the lower end 56b of the third plate member 56, the main portion 58a of the fourth plate member 58 is fixed to the front of the paper side of the third plate member 56 (see Figure 41). For example, the third plate member 56 and the fourth plate member 58 are spot-welded at multiple positions 56p of the third plate member 56 and multiple positions 58p of the fourth plate member 58.

[0103] Next, as shown in Figures 42 and 43, the front plate section 50A, the rear plate section 50B, and the side plate sections 60A and 60B are connected to form the discharge section 50. The side plate section 60A is fixed to the front plate section 50A and the rear plate section 50B with the side sections 60b and 60c of the side plate section 60A in contact with one end of the front plate section 50A and the rear plate section 50B from the outside. For the side plate section 60A, multiple positions 60q of the side section 60c are spot welded to multiple positions 52p of the front plate section 50A, and multiple positions 60p of the side section 60b are spot welded to multiple positions 56q of the rear plate section 50B. Similarly, for the side plate section 60B, multiple positions 60p of the side section 60b are spot welded to multiple positions 52p of the front plate section 50A, and multiple positions 60q of the side section 60c are spot welded to multiple positions 56q of the rear plate section 50B. As shown in Figure 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 w50, which is substantially the same as the width w12 (see Figure 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 L50, which is substantially the same as the length width L12 (see Figure 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 discharge section 50 is attached to the box body 10B. The discharge section 50 is inserted into the box body 10B through the connection opening 12s until the rectangular sections 54b and 58b of the discharge section 50 are in contact. At this point, the rectangular section 54b is in contact with the side surface 12bg of the front wall section 12b, and the rectangular section 58b is in contact with the side surface 12cg of the rear wall section 12c. This state is called the box body 10C (see Figure 45).

[0105] Next, four corner frame members 30 are fixed to the box body 10C shown in Figure 45 to form the box body 10D (see Figure 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 Figure 47). As described above, the U-shaped member 34 is formed of a rectangular base 34a having a longitudinal direction in plan view, and upright parts 34b and 34c formed by bending perpendicularly from both ends of the base 34a (see Figure 20). As shown in Figure 47, the base 34a of the U-shaped member 34 connects the two lower corner frame members 30 in Figure 47. The upright parts 34b and 34c of the U-shaped member 34 connect the two lower corner frame members 30 and the two upper corner frame members. The U-shaped member 34 and the four corner frame members 30 are fixed with screws. In this embodiment, one U-shaped member 34 is provided, but there is no limit to the number; for example, there may be two or three or more.

[0107] Subsequently, adhesive is used to connect each component 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 Figure 48). The adhesive is, for example, vinyl acetate resin emulsion wood bond. Also, a sealant is applied between each component as needed. The sealant is, for example, a nitrile rubber duct sealer.

[0108] Figure 49 is a schematic cross-sectional view of line box 1 in Figure 48, specifically the portion including the supply port 40 and the plate-shaped member 70. In the explanation referring to Figure 49, "upper end" or "lower end" refers to the top and bottom of the page in Figure 49. Since Figure 49 is a schematic cross-sectional view, notations for screws, adhesives, etc., are omitted.

[0109] As shown in Figure 49, the supply port 40 has its blade portion 40b in contact with the inner circumferential surface of the ceiling opening 12aa of the ceiling wall portion 12a and the outer surface of the ceiling wall portion 12a. The blade portion 40b is fixed to the ceiling wall portion 12a by contacting the two lower square frame members 30.

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

[0111] The discharge section 50 has a rectangular section 54b that contacts the inner surface and side surface of the front wall section 12b, and a rectangular section 58b that contacts the inner surface and side surface of the rear wall section 12c. The discharge section 50 is fixed to the main body 10 by the rectangular sections 54b and 58b being fixed to the front wall section 12b and the rear wall section 12c, respectively, by the frame members 30.

[0112] <Effects of Line Box 1> The operation and effect of the line box 1 will be explained with reference to Figures 50 to 56. As shown in Figure 50, the line box 1 is placed in an opening 200 formed in the ceiling of Room C. The line box 1 is placed in Room C in a state that is upside down compared to the state shown in Figure 48 during the manufacturing process. When conditioned air Air 1 is supplied to the supply port 40 of the line box 1, the conditioned air Air 1 expands its flow range along the longitudinal direction of the line box 1 within the line box 1 and becomes exhaust air Air 2, which is supplied to the room M. This will be explained in detail below.

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

[0114] As shown in Figure 52, a portion of the conditioned air Air1 that hits the plate-shaped member 70 passes through the through-hole 70b of the plate-shaped member 70. When the other portion of the conditioned air Air1 hits the base 70a, it changes direction and flows towards the ends in the longitudinal direction where the air pressure is lower, and further changes direction towards the exhaust port 50 and Room M where the air pressure is lower. This mitigates the tendency for the conditioned air Air1 to be concentrated and discharged in the vertical direction of the supply port 40, and the airflow rate of the discharged air is made uniform in the longitudinal direction of the opening 200.

[0115] The behavior of the conditioned air Air1 upon reaching the plate-shaped member 70 will be described in detail below. As shown in Figure 53, when Air11a, which is a part of the conditioned air Air1, reaches the plate-shaped member 70, it passes through the through-hole 70b. When the other part, Air11b, reaches the plate-shaped member 70, it hits the base portion 70a where the through-hole 70b is not formed, and the airflow vector becomes Air11b1 (hereinafter referred to as "reflected airflow Air11b1") which has a longitudinal directional component. The reason why the reflected airflow Air11b1 is directed toward both ends in the longitudinal direction is that, in the unit space S1 and S2, the air pressure at both ends in the longitudinal direction is relatively lower than the air pressure at the center.

[0116] As shown in Figure 54, the reflected airflow Air 11b1 moves above the plate-shaped member 70, and therefore acts as an external force on and affects the conditioned air Air 1 before it reaches the plate-shaped member 70. As a result, whether the conditioned air Air 1 is Air 11a passing through the through-hole 70b or Air 11b hitting the base 70a, the airflow vector is not linear, but is influenced by the reflected airflow Air 11b1, changes direction, and reaches the plate-shaped member 70 while having a longitudinal directional component.

[0117] Specifically, as shown in Figure 54, if we consider two regions above the plate-shaped member 70, AS1 close to the supply port 40 and AS2 close to the plate-shaped member 70, in region AS1, the conditioned air Air1 is not affected by the reflected airflow Air11b1, or if affected, it is only slightly. In contrast, in region AS2, the conditioned air Air1 is greatly affected by the reflected airflow Air11b1. Therefore, even though 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 with various directional components. As a result, although the airflow discharged from the outlet 200 as a whole is directed downward, if we focus on that part, it is composed of airflow containing vector components in various directions, so the airflow in the longitudinal direction of the outlet 200 is made even more uniform.

[0118] Region AS1 has the function of ensuring that the conditioned air 1 reliably hits the plate-shaped member 70 while maintaining a downward flow velocity by not applying an external force perpendicular to the flow direction of the incoming conditioned air 1. Region AS2 has the function of influencing the flow direction of the conditioned air 1 with the reflected airflow Air 11b1 and working in cooperation with the plate-shaped member 70 to disperse the conditioned air 1 in the longitudinal direction of the main body 10 (unit spaces S1 and S2). For this reason, the distance from the tip 40aa of the supply port 40 to the plate-shaped member 70 is defined as a distance at which regions AS1 and AS2 can be present.

[0119] Here, even if the opening ratio of the plate-shaped member 70 is 5 / 10 or more and 8 / 10 or less, In unit regions S1 and S2, the exhaust air does not concentrate in the direction directly below the supply port 40, and it should be explained that the exhausted air can be made uniform in the longitudinal direction of the exhaust port 50. First, the opening ratio of the plate-shaped member 70 is not the same as the ratio of the conditioned air Air1 passing through the through hole 70b (hereinafter referred to as the "penetration ratio"), but rather becomes smaller. Figure 55 is a conceptual diagram showing the angle of the airflow and the through hole 70. Air11a1 and Air11a2 shown in Figure 55 are airflows with the same diameter as the diameter of the through hole 70. Since Air11a1 strikes the plate-shaped member 70 in a vertical direction, all of it wAir1 passes through the through hole 70b. In contrast, since Air11a2 strikes the plate-shaped member at an angle that is not vertical, not all of it, but a part of the airflow wAir2 passes through the through hole 70b, and the other part wAir3 strikes the base 70a. Thus, when the conditioned air Air1 does not strike the plate-shaped member 70 from a vertical direction, the penetration ratio becomes smaller than the opening ratio of the plate-shaped member 70. Furthermore, the fact that air is a fluid with a predetermined viscosity also contributes to the smaller penetration ratio.

[0120] As shown in Figure 56, the airflow Air 11b that strikes the base 70a of the plate-shaped member 70 is directed toward both ends in the longitudinal direction of the unit space S1 and toward the discharge port 50. This is because the air pressure is lower at both ends in the longitudinal direction than at the center, and the air pressure in the direction of the discharge port 50 is lower than above where the supply port 40 is located. Therefore, once the airflow Air 11b leaves the area where the plate-shaped member 70 is located, it changes direction downward at various positions toward both ends and is discharged. This equalizes the airflow in the longitudinal direction of the discharge port 200.

[0121] The shape and size of the plate-shaped member 70 and its position on the main body 10 are specified so that the plate-shaped member 70 acts on the conditioned air Air 1 as described above, and the airflow in the longitudinal direction of the discharge section 50 is made uniform.

[0122] <Second Embodiment> As shown in Figures 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. Aside from 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] Because the cross-sectional area of ​​the opening of the supply port 40 is smaller than the cross-sectional area of ​​the opening of the duct 202A, the flow velocity of Air1 increases as it passes through the supply port 40. As a result, Air1 is more reliably able to hit the plate-shaped member 70, and Air2 from the opening 200 can more easily reach the entire RoomM.

[0124] <Third Embodiment> Except for the shape of the plate-shaped member 70A, the third embodiment is identical to the first embodiment. As shown in Figures 59 and 60, the plate-shaped member 70A is formed such that the heights of both ends are substantially equal when attached to the main body 10, and when the line box 1 is attached to the ceiling of a building, it is configured to have a bent shape in a side view such that the ends are lower and the center is higher. As a result, as shown in Figure 61, when the plate-shaped member 70A is placed on the main body 10, it has the advantage of making it easier to send the incoming airflows Air 11a and Air 11b toward the longitudinal end.

[0125] <Fourth Embodiment> Except for the shape of the plate-shaped member 70B, the fourth embodiment is identical to the first embodiment. As shown in Figures 62 and 63, the plate-shaped member 70B is formed such that the heights of both ends are substantially equal when attached to the main body 10, and in a side view, it is configured in a curved shape with the ends being lower and the center being higher. As a result, as shown in Figure 64, when the plate-shaped member 70B is placed on the main body 10, it has the advantage of easily directing the incoming airflows Air 11a and Air 11b toward the longitudinal end.

[0126] Furthermore, the rectifier-type GW line box of the present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention. In addition, each of the above embodiments can be combined as appropriate, as long as it does not create a technical contradiction. [Explanation of Symbols]

[0127] 1. Rectifier-type GW line box 10 Line box main unit 12 Main components 12a Ceiling and wall section 12aa ceiling opening 12b Front wall 12c Rear wall 16 partition plates 17 Microduct Board 18 Side wall section 30 Square frame member 32 End frame member 34 U-shaped member 40 supply ports 41 Suspension component 50 Discharge section 50A front plate part 50B Rear plate part 70, 70A, 70B Plate-shaped member 202, 202A duct

Claims

1. A line box made of flow-rectifying glass (GW) material having a hollow, box-shaped line box body and a cylindrical discharge section connected to the line box body for discharging conditioned air sent from the line box body, The line box body is, In a plan view, it is configured to have a shape substantially similar to the discharge section, It has a ceiling wall section, a front wall section and a rear wall section arranged parallel to each other, and a pair of side wall sections that close off both ends in the longitudinal direction, The portion connecting to the discharge section is open, forming a connection opening, and is configured to allow the discharge section to be inserted and fixed inside the line box body. The line box body has at least one unit space that is separated in a direction perpendicular to the longitudinal direction, In the aforementioned unit space, The aforementioned ceiling wall section has a ceiling opening formed in substantially the central part in the longitudinal direction, which is an opening for taking conditioned air from the air conditioner into the interior of the line box body. The aforementioned ceiling opening is provided with a cylindrical supply port for connecting to a duct that will be connected to an air conditioner. The tip of the supply port is exposed to the unit space, Between the tip of the supply port and the connection opening, a plate-shaped member is arranged with a plurality of through holes dispersed therein, at a predetermined distance from the tip. The plate-shaped member is formed in a shape that, in a plan view, overlaps with the opening surface of the supply port and is larger than the opening surface, and is arranged to correspond to only a portion of the longitudinal direction of the unit space, not the entire area, and is configured such that the ratio of the through-holes to the total area of ​​the plate-shaped member is greater than or equal to the ratio of the non-through-hole portion of the plate-shaped member, thereby allowing a portion of the incoming airflow, which is the conditioned air flowing into the unit space from the supply port, to pass through, while directing another portion of the incoming airflow as a reflected airflow toward the longitudinal end of the unit space, and by adding a horizontal component to the flow of the incoming airflow toward the plate-shaped member through the reflected airflow, the airflow distribution in the longitudinal direction of the discharge section is made uniform. Unlike air conditioning systems that use radiation for temperature control, the aforementioned rectifier-type GW line box is a convection-type air conditioning system that uses airflow for air transport and distribution control. Rectifier-type line box manufactured by GW.

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

3. The flow-rectifying 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 total area of ​​the plate-like member is 5 / 10 or more and 8 / 10 or less.

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

5. The flow-rectifying GW line box according to claim 1, wherein the plate-shaped member is positioned substantially midway between the tip of the supply port and the connection opening.

6. The line box made of flow-rectifying glass wool according to claim 1, wherein the ceiling opening has a shape that, in a plan view, has a longitudinal direction that coincides with the longitudinal direction of the line box body, and the length in the longitudinal direction is greater than the length in the width direction perpendicular to the longitudinal direction.

7. The flow-rectifying GW line box according to claim 1, wherein 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.

8. The flow-rectifying GW line box according to claim 1, wherein the plate-shaped member is oriented with the supply port facing upward and the discharge port facing downward, and when attached to the line box body, the heights of both ends are substantially equal, and in a side view, it is formed in a straight shape, or a bent shape with both ends lower and the center higher, or a curved shape formed with both ends lower and the center higher.

9. The line box body has a length substantially the same as the longitudinal length of the line box body, and has a corner frame member for reinforcing the fixing of the positional relationship between the ceiling wall, the front wall, and the rear wall. The discharge section has a front plate portion and a rear plate portion that constitute the longitudinal direction and are arranged in parallel, The front plate and the rear plate are provided with rectangular portions that protrude outward from the discharge section in a direction substantially perpendicular to the height direction. A portion of the discharge section in the height direction is inserted into the line box body in a manner that contacts the front wall and rear wall of the line box body, and the rectangular portion contacts the sides of the front wall and rear wall, thereby defining the positional relationship between the discharge section and the line box body. The flow-rectifying GW line box according to claim 1, wherein the rectangular portion is sandwiched between the side portions of the front wall portion and the rear wall portion and the corner frame member, thereby maintaining the fixed state between the discharge portion and the line box body.

10. The line box body has side walls that close both ends in the longitudinal direction, The portions near both ends in the longitudinal direction of the ceiling wall, front wall, and rear wall are formed to be lower with a step compared to the wall base, which is the other portion of the ceiling wall, front wall, and rear wall. The flow-rectifying GW line box according to claim 1, wherein the side wall portion is positioned by the side surfaces of the wall base portions of the ceiling wall portion, the front wall portion, and the rear wall portion, and the portions near both ends.

11. The flow-rectifying GW line box according to claim 1, wherein, in the plate-shaped member, a plurality of imaginary lines are evenly arranged in the longitudinal direction of the plate-shaped member, a plurality of imaginary lines are evenly arranged in the short direction of the plate-shaped member, and when considering the intersections of the imaginary lines in the longitudinal direction and the imaginary lines in the short direction, in both the longitudinal direction and the short direction, adjacent through holes are located not at adjacent intersections, but at intersections adjacent to adjacent intersections.

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