CN113661365A

CN113661365A - Air conditioner and radiation air conditioner using the same

Info

Publication number: CN113661365A
Application number: CN201980094334.0A
Authority: CN
Inventors: 小野干治; 泷泽勇辉; 藤吉充; 枡见秀之; 久保田祥弘
Original assignee: Fujita Corp
Current assignee: Fujita Corp
Priority date: 2019-05-08
Filing date: 2019-12-23
Publication date: 2021-11-16
Anticipated expiration: 2039-12-23
Also published as: TW202041814A; KR20220006050A; WO2020225941A1; CN113661365B; JP7335723B2; AU2019444144A1; TWI825253B; SG11202110160QA; JP2020183837A

Abstract

The air conditioner includes a casing in which an air inlet and an air outlet are disposed on one surface and an opposite surface of a horizontal plane, respectively, and a heat exchanger and a cross-flow fan are arranged in a row in the casing. The cross-flow fan is driven so that its upper half side rotates in a direction from the heat exchanger toward the outlet. In the air blowing operation by the rotation of the cross flow fan, the flow path of the air in the casing, that is, the curvature of the flow path in the casing is indispensable. The air conditioner is provided with an airflow adjusting portion for realizing the buckling of the flow path in the body, so that airflow from an obliquely lower direction to the cross flow fan is generated on the air intake side, and airflow from the cross flow fan is generated on the air outlet side.

Description

Air conditioner and radiation air conditioner using the same

Technical Field

The present invention relates to an air conditioner and a radiation air conditioner using the same.

Background

As an air conditioning apparatus for maintaining the comfort of an indoor space, a convection system has been generally used. This is a system of blowing conditioned air with adjusted temperature and humidity into a room and performing air conditioning by convection.

However, the convection method is apt to be unsatisfactory in terms of comfort.

One of the reasons for this is that when air is convected, a difference in temperature distribution occurs between the upper and lower sides in the indoor space, warm air easily flows to the ceiling side, and cool air easily stays on the floor. It is always unpleasant because it is in a state opposite to the head coldness and the foot warmth which are good for health and comfortable.

Another reason why dissatisfaction is easily felt is that a phenomenon called a cold wind sensation (draft) occurs in which a convective air flow directly touches a human body. For example, in a room where cooling is effective, the sensible temperature is said to decrease by 3 ℃ at a wind speed of 0.5 m. Therefore, the user feels comfortable from the beginning when entering the air-conditioned room from the outdoors in a burning sun, but the user feels cold after the body is cooled.

Further, there are not a few people who feel unpleasant because of the fact that the airflow directly and continuously hits the body.

The radiation type air conditioner improves the above-described problem of the convection type air conditioner in that the air flow does not directly collide with the body.

As an example of such a radiation type air conditioner, patent document 1 discloses an air conditioner in which an air conditioner and a radiation panel are mounted on a ceiling surface (patent document 1 is referred to as a "radiation air conditioning system").

The radiation panel is configured to form an air passage between the radiation panel and the heat insulation panel facing each other and having moisture permeability, and an inlet of the air passage faces an outlet of the air conditioner (see paragraphs [0025] to [0029] and fig. 1 to 11 of patent document 1). Therefore, the air-conditioning air blown out from the outlet of the air-conditioning apparatus is guided into the air passage and flows through the air passage. Thus, the temperature of the radiation panel can be controlled, and radiation cooling and heating can be performed.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2016-217630

Disclosure of Invention

Technical problem to be solved by the invention

Patent document 1 shows a thin air conditioner having a low height in the vertical direction (see fig. 11 to 5 of document 1). Regarding this air conditioner, patent document 1 describes "cooling or heating is performed by heat absorption or heat radiation action accompanied by phase change of the heating agent fluid by introducing air of the indoor space 1 so that the cooled or heated air is ejected from the air-conditioning air ejection port 211 a" (refer to paragraph [0027] of document 1). On the other hand, the internal structure of the air conditioner is not described, so that the details thereof are not known.

As an air supply source of an air conditioner, a cross flow fan is widely used. The cross-flow fan can blow out the conditioned air uniformly even from a wide outlet port, and is also low in operating sound, and therefore is suitable for use as an air supply source of an air conditioner.

Therefore, the air conditioner described in patent document 1 also assumes the use of a cross flow fan.

However, in order to perform a normal air blowing operation using the cross flow fan, it is necessary to bend a flow path of air in the air conditioning body from the air intake port to the air outlet (hereinafter, also referred to as an "in-body flow path"). Therefore, a relatively wide space for arranging the flow path in the body is required, and layout restrictions are also imposed on the air intake port and the air outlet port.

When the cross flow fan is used for the thin air conditioner described in patent document 1, it is necessary to consider how to arrange the in-body flow path by securing a space for the in-body flow path in the case of the air conditioner in which it is difficult to obtain a sufficient height dimension in the vertical direction. In other words, the cross flow fan is used as the air supply source, but how to reduce the height dimension of the air conditioner becomes a problem.

The invention aims to reduce the height size of an air conditioner using a cross flow fan as an air supply source.

Means for solving the technical problem

The air conditioner of the present invention includes: a casing in which an air inlet and an air outlet are disposed on a surface intersecting a horizontal plane and on a surface opposite to the horizontal plane; a heat exchanger disposed between the air intake port and the air outlet port; a cross-flow fan disposed on the side of the blowing outlet with respect to the heat exchanger; and a drive unit that drives a drive source of the cross-flow fan such that a rotational direction of a region above the rotational axis is a direction from the heat exchanger toward the outlet.

The air conditioner of the present invention includes: a casing in which an air inlet and an air outlet are disposed on a surface intersecting a horizontal plane and on a surface opposite to the horizontal plane; a heat exchanger disposed between the air intake port and the air outlet port; a cross-flow fan disposed on the side of the blowing outlet with respect to the heat exchanger; a drive unit that drives a drive source of the cross-flow fan so that a rotation direction of a region above a rotation axis is a direction from the heat exchanger toward the outlet; and an airflow adjusting part which generates airflow from an oblique lower direction to the cross flow fan at the air inlet side and generates airflow from the cross flow fan to an oblique lower direction at the air outlet side.

The radiation air conditioner of the present invention includes: the air conditioner is arranged on the ceiling surface; a rear panel mounted on a ceiling surface adjacent to a blow-out port of the air conditioner; a vented radiation panel having a horizontal projected area larger than an area where the air conditioner and the back panel are combined; and a pair of side walls interposed between the rear panel and the radiation panel in a direction in which the air-conditioned air is blown out from the air outlet.

Effects of the invention

According to the present invention, even if a cross flow fan is used as the air supply source, the height dimension of the air conditioner can be reduced.

Drawings

Fig. 1 is a schematic view showing an embodiment of a radiant air conditioning device.

Fig. 2 is a perspective view of the air conditioner as viewed from below.

Fig. 3 is a rear view of the air conditioning device.

Fig. 4 is a front view of the air conditioning device.

Fig. 5 is a plan view of the air conditioning device.

Fig. 6 is a right side view of the air conditioning device.

Fig. 7 is a perspective view showing the guide rail from obliquely above in a further enlarged manner.

Fig. 8 is a perspective view showing the guide rail and the magnet attached to the air conditioner in an enlarged manner from obliquely below.

Fig. 9 is a schematic diagram showing an internal structure of the air conditioning device.

Fig. 10 is a front view of the heat exchanger.

Fig. 11 is a perspective view showing the panel base from the bottom surface direction.

Fig. 12 is a plan view of the frame of the radiation panel.

Fig. 13 is an exploded perspective view of the radiation panel.

Fig. 14 is a top view of the radiation panel.

Fig. 15 (a) is a schematic diagram showing the radiation panel unit in cross section in the width direction, and fig. 15 (b) is a schematic diagram showing the radiation air conditioner in cross section in the flow direction of the air-conditioning air.

Fig. 16 (a) is an enlarged perspective view showing a slider and an adsorption plate attached to a housing of the radiation panel, and fig. 16 (b) is an enlarged perspective view showing a coupling pin attached to a second housing.

Fig. 17 is a perspective view showing the slider on a further enlarged scale.

Fig. 18 is a perspective view of an installation location of the air conditioner, as viewed from below, in a state where the air conditioner is installed.

Fig. 19 is a perspective view of the air conditioner and the panel base when viewed from below.

Fig. 20 is a perspective view of the air conditioner with the radiation panel fastened thereto, as viewed from below.

Fig. 21 is a schematic view of a state in which the radiation panel is fastened to the air conditioner, as viewed from the side.

Fig. 22 is an enlarged schematic view showing a positional relationship between the guide rail and the slider.

Fig. 23 is a schematic view of a state where the second panel is rotated to be horizontal as viewed from the side.

Fig. 24 is an enlarged schematic view showing a positional relationship between the guide rail and the slider.

Fig. 25 is a schematic view of a state where the second panel is moved to the horizontal and is permanently fixed as viewed from the side.

Fig. 26 is an enlarged schematic view showing a positional relationship between the guide rail and the slider.

Fig. 27 is a schematic view of a state where the first panel is rotated and held by the panel holding portion as viewed from the side.

Fig. 28 is an enlarged schematic view showing a positional relationship between the guide rail and the slider.

Fig. 29 is a perspective view of the radiation panel fixed to the panel base, as viewed from below.

Fig. 30 is a perspective view of a state where the first panel is mounted and the setup of the radiation air conditioner is completed, as viewed from below.

Fig. 31 (a) is a front view showing a modification of the panel base, fig. 31 (b) is a bottom view showing a modification of the panel base, and fig. 31 (c) is a bottom view in a case where a different planar shape is adopted.

Fig. 32 is a front view showing another modification of the panel base.

Fig. 33 (a) to (d) are schematic diagrams illustrating changes in the position of the fastener chain in the cloth cover.

Fig. 34 is a front view showing another configuration example of the radiant air conditioning device.

Detailed Description

An embodiment is explained based on the drawings.

The following items are explained.

1. Radiation air conditioning device

(1) Air conditioner

(a) Appearance of the product

(b) Internal structure

(rotation direction of Cross flow Fan)

(shape of flow passage in body and arrangement of Cross flow Fan)

(2) Radiation panel unit

(a) Panel matrix

(b) Radiation panel

(c) Assembling and disassembling structure of radiation panel relative to panel base body

(Pre-fastening structure of radiation panel)

(formal fixing structure of the radiation panel)

(holding Structure of first Panel)

(study of the cloth Cap)

2. Order of arrangement

(1) Air conditioner arrangement

(2) Mounting of panel substrate

(3) Mounting of radiation panels

(a) Pre-fastening

(b) Rotation of the second panel

(c) Formal fixation

(d) Holding of the first panel

(4) Removal of radiation panels

(a) Holding release of the first panel

(b) Releasing the connection of the connection part

(c) Rotation of the second panel

(d) Falling off

3. Effect of action

(1) Prevention of dew formation

(a) Cause of dew condensation

(b) Radiation air conditioner of the present embodiment

(c) Principle of preventing dew formation

(2) Thinning of air conditioner

(a) Cross flow fan

(b) Heat exchanger

(3) Heat exchanger

(4) Enlargement of heat-emitting area

(a) For expansion in width direction

(b) Enlargement of area overlapping with air conditioner

(5) Prevention of shortcut phenomenon

(6) Effects due to shape and structure of the sheet

(a) Enlargement of heat-emitting area

(b) Make the manufacture easy

(c) Elimination of disadvantages

(7) Make the assembly and disassembly operation of the radiation panel become easy

(8) Freedom of material selection of sheet material

(9) Suppression of deformation of sheet material

(10) Thermal efficiency

(11) Special feature of appearance

(a) Beautiful appearance

(b) Usage and beauty

4. Modification example

(1) Installation place of radiation air conditioner

(2) Setting state of radiation air conditioner

(3) Air conditioner and back panel arrangement

(4) Structure of radiation panel

(5) Fixing structure of radiation panel

(a) Mounting position of slider

(b) Other securing arrangements

(c) First panel

(6) Form of the radiation panel

(7) Side wall

(8) Discharge port

(9) Variation of position of clip chain of sheet material

(10) Another embodiment of the radiation air conditioner

(11) Others

1. Radiation air conditioning device

As shown in fig. 1, the radiation air conditioner 11 of the present embodiment includes an air conditioner 51 and a radiation panel unit 101 both provided on a ceiling surface C. The radiant air conditioner 11 is disposed close to a wall W provided on one surface of the room R.

In the present embodiment, the directions of the air conditioner 51 and the radiation panel unit 101 are defined as follows. First, a horizontal plane is assumed. The horizontal plane is not a horizontal plane in which an object can exist but an abstract and conceptual virtual horizontal plane.

The surface intersecting such a horizontal plane and the surface opposite to the horizontal plane are set as the back surface and the front surface of the air conditioner 51. The rear surface is a surface on which an air inlet 52 (described later) is disposed (see fig. 1 and 3). The front surface is a surface on which an air outlet 55 (see fig. 1 and 4) described later is arranged.

When the air conditioner 51 is viewed from the front side, the plane intersecting the horizontal plane is a side plane. The side surface on the right side is a right side surface, and the side surface on the left side is a left side surface.

The upper and lower surfaces of the air conditioner 51 are an upper surface on the upper side in the vertical direction and a lower surface on the lower side in the vertical direction.

When the air conditioner 51 is viewed from the front side, the direction connecting the both side surfaces is defined as a lateral width direction (width direction), the direction connecting the front and rear surfaces is defined as a depth direction, and the direction connecting the upper and lower surfaces is defined as a height direction. The front side is also referred to as the front side, and the back side is also referred to as the back side.

As shown in fig. 1, the radiation panel unit 101 is disposed adjacent to the front surface of the air conditioner 51. When such a disposition relationship is maintained, the respective faces (end portions) and directions of the radiation panel unit 101 are also defined in the same manner as the above-described faces and directions described with respect to the air conditioner 51. The face (end) and the direction of the radiation panel unit 101 thus defined are uniquely determined and do not change even if the arrangement relationship shown in fig. 1 in which the radiation panel unit 101 is adjacent to the air conditioner 51 is broken.

The case 51a of the air conditioner 51, the panel base 111 (back panel 112, side wall 113) constituting the radiation panel unit 101, and the radiation panel 131 (frame 132, cloth cover 141) are also similar to the radiation panel unit 101, which will be described later, with respect to the air conditioner 51. That is, when the radiation panel unit 101 is in the state of fig. 1 adjacent to the front surface of the air conditioner 51, the surfaces (end portions) and the directions of the above-described respective portions are also defined as the surfaces and the directions described above for the air conditioner 51. The respective faces (end portions) and directions of the above-described portions thus defined are uniquely determined and do not change even if the arrangement relationship shown in fig. 1 in which the radiation panel unit 101 is adjacent to the air conditioner 51 is broken.

(1) Air conditioner

The ceiling surface C is a folding ceiling and has a recess C1 (see also fig. 18 and 19). The air conditioner 51 is mounted by, for example, an eye bolt so as to be fitted into the recess C1 (see fig. 18).

As shown in fig. 1, the air conditioner 51 draws in air in the room R from an air intake port 52 provided on the rear surface, brings the air into contact with a heat exchanger 53, and blows out the air as conditioned air from an air outlet 55 by a cross-flow fan 54. A filter 56 is detachably attached to the air inlet 52.

(a) Appearance of the product

As shown in fig. 2 to 6, the casing 51a of the air conditioner 51 has a thin shape whose size is reduced in the order of the lateral width, depth, and height.

As shown in fig. 3, three regions, each having a rectangular shape in lateral length, are horizontally arranged in the air inlet 52 disposed on the rear surface of the housing 51 a. Each air introduction port 52 is opened at a respective region so as to connect the space on the indoor R side with the inner space of the housing 51 a.

Filters 56 are attached to three regions of the air intake port 52. These filters 56 are attached to the housing 51a so as to be removable by an operation from the lower surface side. The housing 51a includes a structure in which the filter 56 can be attached such that the filter is pushed in from below to above and the filter 56 can be detached such that the filter is pulled out from above to below in the region on the back surface side. This structure includes a structure for guiding the filter 56 in the up-down direction and a structure for holding the filter 56 at a position where the air introduction port 52 is blocked.

Three regions serving as air introduction ports 52 are disposed near the right side surface of the housing 51a (see fig. 2 and 5). Therefore, the three regions are close to the left side when viewed from the back side.

As shown in fig. 4, the air outlet 55 disposed on the front surface of the casing 51a has three horizontally long rectangular areas arranged in parallel. These three regions are positioned at positions matching the three regions serving as the air introduction ports 52, and are disposed close to the right side in the lateral width direction of the housing 51a (see fig. 2 and 5).

The number of three positions to be the air outlets 55 and the arrangement of the air outlets 55 toward the right are merely one embodiment. In the present embodiment, the air outlet 55 is not limited to this, and may be divided into a plurality of areas, two areas, or four or more areas. The air outlet 55 may be disposed close to the left side surface of the casing 51a, or may be disposed at the center. It is not essential that the air intake port 52 and the air outlet port 55 are disposed close to the same side of the casing 51a, and various modifications may be made such that, for example, the air intake port 52 is disposed closer to the left and the air outlet port 55 is disposed closer to the right or the center.

As shown in fig. 2 and 4 to 6, the air outlet 55 is provided at the front end of the cover 61 having a shape protruding from the front surface of the casing 51 a. The three areas of the air outlet 55 are divided by partitions 62 provided vertically in the cover 61. When the air outlet 55 is not divided into a plurality of areas, the partition plate 62 is not necessary.

The root side of the upper surface of the cover 61 connected to the front surface of the housing 51a is an inclined surface 63. The inclined shape is the same not only on the outer surface but also on the inner surface of the cover 61 (see fig. 9), and an inclined inner surface 64 is provided on the upper surface of the cover 61 corresponding to the inclined surface 63.

In the air conditioner 51 attached to be fitted into the recess C1 of the ceiling surface C, the cover 61 protrudes toward the panel base 111 side beyond the edge E that is the boundary between the ceiling surface C and the recess C1. At this time, the inclined surface 63 of the cover 61 is inclined to facilitate smooth connection with the panel base 111 described later.

The inclined shape of the inclined inner surface 64 of the cover 61 helps ensure normal operation of the cross flow fan 54 described later.

The contribution of these inclined surfaces 63 and the inclined inner surfaces 64 will be described later.

As shown in fig. 2 to 6 and 8, guide rails 57 are attached to both side surfaces of the casing 51a of the air conditioner 51. The mounting positions of the pair of guide rails 57 are relatively lower on the rear side of the housing 51 a.

As shown in fig. 7, the guide rail 57 extends along the arrangement direction (depth direction) of the air conditioner 51 and the panel base 111, and has a step portion 57 a. The step portion 57a has a low height on the panel base 111 side and a high height on the air conditioner 51 side.

The pair of left and right guide rails 57 are used for attaching the radiation panel unit 101 to the radiation air-conditioning apparatus 11. The details will be described later.

As shown in fig. 3, 5 to 6, and 8, a pair of magnets MG are provided on both end portions of the rear surface of the casing 51a of the air conditioner 51.

As shown in fig. 8, the magnet holder 71 protrudes from the rear surface of the housing 51 a. The magnet MG is attached to the lower surface of the magnet frame 71.

The pair of left and right magnets MG are used for mounting the radiation panel unit 101 to the radiation air conditioner 11. The details will be described later.

(b) Internal structure

As can be seen from fig. 9, the air intake port 52 provided on the back side and the air outlet 55 provided on the front side of the casing 51a are respectively disposed on a surface intersecting the horizontal plane and on a surface opposite thereto.

The casing 51a has a heat exchanger 53 disposed between the air intake port 52 and the air outlet 55, and a cross-flow fan 54 disposed on the air outlet 55 side of the heat exchanger 53. The air intake port 52, the heat exchanger 53, the cross-flow fan 54, and the air outlet 55 are provided on a straight line in the depth direction.

The cross flow fan 54 rotates about the rotation axis a. In the interior of the casing 51a, an air flow path (hereinafter also referred to as an "in-body flow path 81") is provided, which introduces air in the room R from the air introduction port 52 by the rotation of the cross flow fan 54, brings the introduced air into contact with the heat exchanger 53, and blows the introduced air out from the air outlet 55.

The cross-flow fan 54 is placed in the in-body flow path 81 only in a random manner, and does not perform a desired operation, that is, an operation of sucking air from the air intake port 52 and ejecting the air to the air outlet 55. In order to generate an airflow in such a direction (see the arrow in fig. 9), the following conditions must be provided:

curve of flow path 81 in body

The cross flow fan 54 is disposed at a predetermined position in the in-body flow path 81

The cross flow fan 54 rotates in a direction matching the shape of the in-body flow path 81.

Therefore, in the present embodiment, there are provided: a structure for rotating the cross flow fan 54 in a predetermined direction; and an airflow adjusting portion 82, the airflow adjusting portion 82 generating an airflow from the air intake port 52 toward the air outlet 55 by the rotation of the cross flow fan 54.

A detailed description will be given.

(rotation direction of Cross flow Fan)

As shown in fig. 2 to 5, the air intake port 52 and the air outlet 55 are disposed on the right side of the casing 51a of the air conditioner 51. This creates a space on the left side of the casing 51a, which is not involved in the flow of air connecting the air intake port 52 and the air outlet 55. The air conditioner 51 arranges an electrical structure in the space.

As shown in fig. 9, the electric components are a drive portion DR and a control portion CR that drive a motor M as a drive source of the cross flow fan 54. The control unit CR controls all operations of the air conditioner 51, including the operation of the drive unit DR.

In fig. 9, the drive portion DR controlled by the control portion CR drives the cross flow fan 54 to rotate in the clockwise direction. The clockwise direction in fig. 9 is a direction in which the rotational direction of the upper half of the cross-flow fan 54, that is, the region above the rotational axis a, is directed from the heat exchanger 53 toward the air outlet 55.

(shape of flow passage in body and arrangement of Cross flow Fan)

As shown in fig. 10, the heat exchanger 53 has a refrigerant pipe 53b passing through a plurality of aluminum plates 53a arranged in the vertical direction. The temperature of the refrigerant is transferred to the aluminum plates 53a by passing the refrigerant through the refrigerant tubes 53b, and the temperature of the air passing through the slits 53c formed between the aluminum plates 53a is controlled.

The heat exchanger 53 of the present embodiment has three layers. That is, three heat exchangers 53 of one layer are directly arranged as a unit.

The three-layer heat exchanger 53 is fixed in the casing 51a in an inclined state. The inclination direction is a direction in which one surface of the cross flow fan 54 faces downward.

As shown in fig. 9, the air passing through the slits 53c of the heat exchanger 53 travels in a direction orthogonal to the surface of the heat exchanger 53. Thereby, an air flow directed obliquely downward from the heat exchanger 53 is generated.

The airflow adjustment portion 82 causes air that is directed downward perpendicular to the surface of the heat exchanger 53 to flow along the bottom surface in the casing 51a, and draws up the air flowing along the bottom surface by the cross-flow fan 54. The drawn air is directed toward the cross-flow fan 54 from obliquely below.

In order to generate such an air flow, the air conditioner 51 is provided with two air flow adjustment plates 83 around the cross flow fan 54, and converts the traveling direction of the air obliquely downward from the heat exchanger 53 into an air flow obliquely upward from below toward the cross flow fan 54. The two airflow adjustment plates 83 are disposed to sandwich the cross flow fan 54 with a slight gap therebetween in the vertical direction, and to guide the airflow from diagonally below into the cross flow fan 54.

The airflow adjusting portion 82 connects the cross-flow fan 54 and the air outlet 55 by a cavity member forming a space inclined downward from the cross-flow fan 54 toward the air outlet 55. Used as the cavity member are an upper and lower two-piece airflow adjusting plate 83 and a cover 61.

The upper and lower airflow adjustment plates 83 are formed such that the in-body flow path 81 on the side of the air outlet 55 with respect to the cross flow fan 54 is inclined obliquely downward. As a result, the in-body flow path 81 generates an airflow obliquely downward from the cross flow fan 54 at the air outlet 55.

More specifically, the in-body flow path 81 guides the air introduced from the heat exchanger 53 side to the cross-flow fan 54 to the blow-out port 55 side while bending it by 90 °. Accordingly, the operation of the cross flow fan 54 that sucks air from the air intake port 52 and discharges the air to the air outlet 55 is normally performed.

The inclined inner surface 64 of the cover 61 has a shape inclined obliquely downward. The inclined inner surface 64 having such a shape serves as a part of the in-body flow path 81 on the side of the air outlet 55 relative to the cross flow fan 54, and contributes to ensuring a normal operation of the cross flow fan 54.

(2) Radiation panel unit

The radiation panel unit 101 is composed of a panel base 111 and a radiation panel 131.

(a) Panel matrix

As shown in fig. 11, the panel base 111 is a heat insulating member having a shape in which a pair of side walls 113 are erected from both side portions of a flat plate-like back panel 112 having a rectangular shape. For example, expanded styrene (EPS), resin, gypsum, polyurethane, glass wool, asbestos, or the like can be used as the material of the panel base 111.

The pair of side walls 113 rise from both end portions in the longitudinal direction (width direction) of the back panel 112, that is, both end portions, and slightly go around in the width direction along the longitudinal direction. With such a shape, three surfaces of the region on the one end side, the region on the other end side, and the region facing the back panel 112 of the pair of side walls 113 are open.

For convenience of description, a region on one end side of the pair of side walls 113 is referred to as an inlet 114, a region on the other end side is referred to as an outlet 115, and a region facing the rear panel 112 is referred to as an opposite region 116. The facing region 116 is a region in a plane including the upper end surfaces of the pair of side walls 113.

Therefore, the panel base 111 includes a side wall 113 as a wall portion that rises from the rear panel 112 in a surrounding manner with the rear panel 112 as a base. An inlet port 114 and an outlet port 115 are provided between the pair of side walls.

The inlet 114 of the panel base 111 has a shape inclined toward an edge connected to the air outlet 55 of the air conditioner 51. This shape matches the inclined surface 63 of the cover 61 having the air outlet 55 at the front end.

In the panel base 111 having the above-described configuration, the position of the end edge of the inlet port 114 and the position of the edge E serving as the boundary between the ceiling surface C and the pocket C1 are attached to the ceiling surface C so as to match each other. Accordingly, the inclined surface 63 of the cover 61 of the air conditioner 51 is aligned with the inlet 114 of the panel base 111, and the air outlet 55 and the inlet 114 are connected to each other (see fig. 19).

The panel base 111 is attached to the ceiling surface C regardless of its type. For example, screws, surface fasteners, adhesive tapes, bonding, and the like may be used, and attachment methods such as eye bolts may be used depending on the structure of the ceiling surface C.

A pair of stoppers 117 are provided on the panel base 111 at the discharge port 115. Thus, discharge port 115 is divided into three regions, one region on the wide center side and two regions on the narrow sides. These stoppers 117 are formed of stopper metal fittings 119 fixed to the back panel 112.

The stopper fitting 119 functions as a connector, and therefore, is provided with a connecting groove 119 a.

Such a panel base 111 is integrally molded from EPS, for example. Therefore, the entire structure functions as a heat insulating material.

(b) Radiation panel

As shown in fig. 12 to 14, the radiation panel 131 is formed by covering a bag-shaped cloth cover 141 on a rectangular frame 132.

The frame 132 is formed in a rectangular shape having ribs for reinforcing and preventing rotation, which connect the plurality of rod-shaped members 133. As the rod-like member 133, a part thereof serves as an outer frame member 133a constituting a rectangular shape that determines the outer shape of the frame body 132, and the other part thereof serves as a reinforcing member 133b that reinforces the outer frame. For example, the rod-like member 133 is a prismatic aluminum pipe having a hollow structure, and the aluminum pipe is connected by a resin connector or fixed by a screw to constitute the frame 132.

As another example, the rod-shaped member 133 may be formed of resin or carbon.

Such a frame 132 includes a first frame 134 and a second frame 135.

The first housing 134 is disposed in a region facing the air conditioner 51. The width of the first housing 134 is set to be wider than the air conditioner 51.

The second housing 135 is larger in both the width direction and the depth direction than the panel base 111, and the rear end side in the depth direction is a length reaching the rear portion in the depth direction of the lower surface of the air conditioner 51.

The first housing 134 is connected to the rear end of the second housing 135 by a hinge 136 and is rotatable with respect to the second housing 135 (see fig. 12 to 13 and 16). The rear end portions in the depth direction of the first housing 134 and the second housing 135 are each sized to completely cover the air conditioner 51.

As shown in fig. 13 to 14, the cloth cover 141 has a bag shape like a quilt cover. Is a shape having an open edge 142 which is closed at four sides and can be opened to three sides. A fastener 143 is attached to the open edge 142, and the fastener 143 is openable and closable. The frame 132 can be housed by opening the opening edge 142. The open edge 142 is positioned slightly inside the end of the cloth cover 141.

The cloth cover 141 is formed of cloth, that is, fiber, and has air permeability and stretchability.

The cloth cover 141 is formed to be slightly smaller in the width direction and the depth direction than the frame 132, and maintains a stretched state when the frame 132 is stored.

The shape of the cloth cover 141 in the bag shape can be regarded as a ring shape when viewed as a shape enclosing the frame 132 in the width direction. This is because the annular shape with both ends open is shaped like a bag with both ends closed.

The cloth cover 141 having a bag shape has a structure in which the fiber material exposed on the front surface side of the chamber R side is sewn to the fiber material on the rear surface side facing the flow path 151. For convenience of explanation, the fiber material on the front side is referred to as front fiber 141A (see fig. 29 and 30), and the fiber material on the back side is referred to as back fiber 141B.

The surface fiber 141A is exposed to the indoor side R when the radiation panel 131 is provided, and determines the appearance of the radiation air conditioner 11. Therefore, aesthetic considerations are emphasized when selecting the material for the surface fibers 141A.

The material of the back surface fiber 141B is selected from the viewpoint of avoiding resistance to the airflow as much as possible while guiding the airflow blown out from the air outlet 55 of the air conditioner 51 to the back side of the front surface fiber 141A. From this viewpoint, in the present embodiment, a mesh cloth, that is, a fiber of a mesh material is used as the back surface fiber 141B.

As shown in fig. 13 and 14, the front surface fibers 141A are wound around the back surface facing the back panel 112, and are sewn to the back surface fibers 141B. The cloth cover 141 positions the sewn portions SP so as to be aligned with the pair of side walls 113 when the radiation panel 131 is attached to the panel base 111.

In the radiation panel 131 in which the cloth cover 141 is attached to the frame 132, the first frame 134 and the second frame 135 are rotatable about an axis passing through the hinge 136, and therefore, the radiation panel can be rotated even in a state where the cloth cover 141 is covered. For convenience of explanation, a portion of the radiation panel 131 where the cloth cover 141 covers the first housing 134 is referred to as a first panel 131A, and a portion of the radiation panel 131 where the cloth cover 141 covers the second housing 135 is referred to as a second panel 131B.

The first panel 131A assumes an area facing a part of the air conditioner 51.

The second panel 131B covers the remaining part of the air conditioner 51 and the entire surface of the panel base 111.

As shown in fig. 1, the radiation panel 131 is positioned and fixed to the opposite area 116 of the panel base 111. Thus, a space from the inlet port 114 to the outlet port 115 is defined, and this becomes a flow path 151 of the air-conditioning air.

As schematically shown in fig. 15 (a), the radiation panel 131 in a state where the frame 132 is covered with the fabric cover 141 is formed in a hollow shape having one surface formed by the front surface fiber 141A and the opposite surface formed by the back surface fiber 141B. At this time, the radiation panel 131 is made in a state equal to the state having the opening O on the back surface side because the back surface fibers 141B of the fabric cover 141 are mesh fabric. Therefore, the conditioned air flowing through the flow path 151 freely enters the inside of the radiation panel 131 from the back surface fiber 141B and contacts the inside of the front surface fiber 141A. Therefore, the surface fiber 141A, which originally has air permeability, functions as the radiation surface RS.

As described above, the projection area of the housing 132 of the radiation panel 131 is larger than the air conditioner 51 and the panel base 111. More specifically, the width of the first housing 134 is set to be larger than that of the air conditioner 51, and the width and depth of the second housing 135 are set to be larger than those of the panel base 111. Therefore, the radiation panel 131 has a larger horizontal projection area than the area where the air conditioner 51 and the panel base 111 are combined.

At this time, as schematically shown in fig. 15 (a), the radiation panel 131 is hollow by the cloth cover 141 covering the frame 132, and therefore the radiation surface RS on the front fiber 141A side is wider than the width of the back panel 112 in accordance with the dimensional relationship.

In contrast, the opening O is narrower than the width of the rear panel 112 corresponding to the facing distance between the pair of side walls 113. In other words, the pair of side walls 113 are interposed between the rear panel 112 and the radiation panel 131 in the direction in which the air-conditioned air is blown out from the air outlet 55 of the air-conditioner 51, and are incorporated between the rear panel 112 and the radiation panel 131 so as to face each other without protruding the opening O. Thus, the width of the air-conditioning air flow path 151 is defined by the pair of side walls 113, and the air-conditioning air flow path is connected to the internal space of the radiation panel 131 so that the air-conditioning air does not leak to the outside through the opening O.

As schematically shown in fig. 15 (b), a rod-like member 133 of the housing 132 is positioned in the inner space of the radiation panel 131. Of these rod-shaped members 133, the outer frame member 133a of the first housing 134 and the outer frame member 133a of the second housing 135 are positioned directly below the heat exchanger 53 incorporated in the air conditioner 51 in the vertical direction. The case 51a of the air conditioner 51 has a flat lower surface, and the frame 132 is in close contact with the case through the cloth cover 141.

Of the first frame 134 and the second frame 135 that are in close contact with the lower surface of the housing 51a, the outer frame member 133a of the second frame 135 connected to the first frame 134 functions as a rod-shaped close-contact member RM. The rod-shaped close contact member RM is a part of the outer frame member 133a, and is in close contact with the casing 51a of the air conditioner 51 via the cloth cover 141. In close contact with the lower surface of the housing 51 a. A structure for bringing a part of the outer frame member 133a, which is the close contact member RM, into close contact with the housing 51a will be described later.

Such close contact member RM segments the internal space of the radiation panel 131, and prevents the air-conditioning air from bypassing to the rear side of the air-conditioning unit 51 (the side of the air intake port 52) of the heat exchanger 53.

As shown in fig. 12 to 14 and fig. 16 (a) and 16 (b), the frame 132 is provided with a pair of sliders 137, a pair of coupling pins 138 as a coupled member, and a pair of suction plates 139 as a suction member as a structure for pre-fastening and fixing the radiation panel 131.

The pair of sliders 137 is a member for pre-fastening the radiation panel 131 in cooperation with the pair of guide rails 57.

The pair of coupling pins 138 are members for fixing the radiation panel 131 in cooperation with the stoppers 117.

The pair of attraction plates 139 is a member for holding the first panel 131A of the radiation panel 131 in cooperation with a magnet MG described later.

(Pre-fastening structure of radiation panel)

As shown in fig. 2 to 5, 7 to 8, 12 to 14, and 16 (a) and 17, the prefastening structure of the radiation panel 131 is composed of a pair of guide rails 57 and a pair of sliders 137.

The pair of sliders 137 are fixed to the outer frame member 133a of the close contact member RM serving as the second housing 135. The fixed positions are positions near both ends of the outer frame member 133 a.

The slider 137 has a round bar-shaped pin 137b fixed to a metal plate 137a screwed to the outer frame member 133 a. The metal plate 137a positions the pin 137b at a position higher than the outer frame member 133 a. The pins 137b are arranged along the width direction of the radiation panel 131, that is, the direction of the rotation axis of the first and

second housings

134 and 135.

The relative interval between the pins 137b of the pair of sliders 137 is set to be slightly larger than the lateral width dimension of the housing 51a of the air conditioner 51. Therefore, the pair of sliders 137 can be guided from above the pair of guide rails 57, and the pins 137b can be placed on the guide rails 57 (see fig. 20 and 21).

The pin 137b mounted on the guide rail 57 is slidable on the guide rail 57. At this time, the pin 137b goes over the step portion 57a, and the height of the slider 137, in other words, the height of the radiation panel 131 is varied. When the slider 137 moves from the panel base 111 side to the air conditioner 51 side, the radiation panel 131 is positioned at the high position. When the air conditioner 51 moves from the slider 137 toward the panel base 111, the radiation panel 131 is positioned at the low position. The radiation panel 131 positioned at the high position brings the outer frame member 133a of the second housing 135, which is the close contact member RM, into close contact with the housing 51a of the air conditioner 51 via the cloth cover 141.

As shown in fig. 2 to 5 and 7 to 8, the guide rail 57 is provided at both ends thereof with restricting pieces 57 b. These restricting pieces 57b prevent the pin 137b sliding on the guide rail 57 from coming off.

(formal fixing structure of the radiation panel)

As shown in fig. 11 to 14 and (b) of fig. 16, the main fixing structure of the radiation panel 131 is composed of a pair of stoppers 117 and a pair of coupling pins 138.

A pair of coupling pins 138 are fixed to the second frame 135. The fixed positions are a pair of reinforcing members 133b coupled to an outer frame member 133a coupled to the opposite side of the first frame 134. In these reinforcing members 133b, the coupling pins 138 are attached to relatively close positions of the outer frame member 133 a.

The pair of coupling pins 138 are in the form of studs that fit into coupling grooves 119a of a pair of left and right stoppers 117 provided on the panel base 111. The connection groove 119a is positioned at the discharge port 115 of the radiation panel unit 101 and opens to the indoor R side. Therefore, the coupling pin 138 is fitted into the coupling groove 119a of the stopper 117 by the horizontal movement of the radiation panel 131 in the direction from the panel base 111 toward the air conditioner 51.

Therefore, the stopper 117 and the coupling pin 138 constitute a coupling portion CN detachably coupled to each other in accordance with the movement of the air conditioner 51 and the panel base 111 in the arrangement direction (depth direction).

(holding Structure of first Panel)

As shown in fig. 1, 3, 5, 8, 12 to 14, and 16 a, the holding structure of the first panel 131A is composed of a pair of magnets MG (panel holding portions) and a pair of attraction plates 139 (attracted members).

The pair of suction plates 139 are fixed to the two reinforcing members 133b provided in the first frame 134. The fixed position is a position slightly lower than the pin 137b of the slider 137 in a state where the first housing 134 and the second housing 135 are arranged in the same plane. These suction plates 139 horizontally position the flat plate-like suction surfaces 139a in a state where the first frame 134 is horizontally erected.

As described above, the pair of magnets MG are provided on both end portions of the back surface of the air conditioner 51 and are attached downward.

The magnets MG and the attraction plate 139 are positioned so that when the first panel 131A is horizontally erected in a state where the radiation panel 131 is substantially fixed, the attraction surface 139a of the attraction plate 139 faces the magnets MG and is attracted by magnetic force.

(study of the cloth Cap)

Unevenness is generated in the frame 132 of the radiation panel 131 due to the attachment/detachment structure of the radiation panel 131 to the panel base 111. The concave-convex portions are portions of the slider 137, the coupling pin 138, and the suction plate 139.

If the cloth cover 141 covers these parts together with the frame 132, the work of attaching and detaching the cloth cover 141 to and from the frame 132 becomes complicated, and the functions of these parts cannot be normally performed.

Therefore, the cloth cover 141 is opened with an exposure opening at the positions of the slider 137, the coupling pin 138, and the suction plate 139 so that these parts can be exposed. The exposure opening is not shown.

2. Order of arrangement

The order of installation of the radiant air conditioning unit 11 will be described.

(1) Air conditioner arrangement

First, as shown in fig. 18, the air conditioner 51 is installed in a pit C1 provided in a ceiling surface C serving as a folding ceiling.

If pit C1 is provided in advance, pit C1 is used, and if pit C1 is not provided, pit C1 is formed by applying work to ceiling surface C.

(2) Mounting of panel substrate

As shown in fig. 19, the panel base 111 is attached to the ceiling surface C.

Panel base 111 is aligned so that introduction port 114 is positioned at edge E which is a boundary between ceiling surface C and pocket C1, and is fixed to ceiling surface C.

At this time, inlet 114 of panel base 111 is positioned along edge E which is the boundary between ceiling surface C and pocket C1. As a result, the air outlet 55 of the air conditioner 51 is aligned with the inlet 114 of the panel base 111 and is connected to each other (see fig. 1).

(3) Mounting of radiation panels

(a) Pre-fastening

First, the radiation panel 131 is pre-fastened.

As shown in fig. 20 to 22, the radiation panel 131 is pre-fastened by bringing a pair of sliders 137 provided in the radiation panel 131 close to the guide rails 57 provided on both side portions of the air conditioner 51 and placing the sliders 137 on the guide rails 57. The slider 137 is placed at a low position located on the front side of the guide rail 57.

In the radiation panel 131 in the pre-fastened state, the positions of the second frame 135 and the first frame 134 are not restricted and are in a rotatable state.

(b) Rotation of the second panel

As shown in fig. 23 to 24, if the radiation panel 131 is pre-fixed, the second panel 131B is rotated to be horizontal.

At this time, the pair of sliders 137 is placed at a position where the height of the pair of guide rails 57 is low. The coupling pin 138 of the second panel 131B faces the stopper metal fitting 119 of the panel base 111 at a distance.

(c) Formal fixation

As shown in fig. 25 to 26, if the second panel 131B is horizontal, the second panel 131B is pushed in while maintaining this posture. That is, the radiation panel 131 is moved in the direction of the air conditioner 51.

Thereby, the coupling pin 138 is fitted into the coupling groove 119a of the stopper fitting 119, and the radiation panel 131 is permanently fixed.

At this time, the slider 137 slides on the guide rail 57 and is positioned at a high position beyond the step portion 57 a. Thereby, the end portion side of the second panel 131B connected to the front end side of the radiation panel 131, that is, the first panel 131A is lifted up and pressed against the lower surface of the case 51A of the air conditioner 51. As a result, the outer frame member 133a of the second housing 135, which is the close contact member RM, is in close contact with the lower surface of the housing 51a via the cloth cover 141.

When the radiation panel 131 is substantially fixed, the first panel 131A is vertically suspended while being rotatable by the hinge 136.

(d) Holding of the first panel

As shown in fig. 27 to 30, the first panel 131A is rotated to be horizontal.

Then, the attracting surface 139a of the attracting plate 139 provided on the first panel 131A is attracted by the magnet MG provided on the back surface of the air conditioner 51 by magnetic force, and is attracted to the magnet MG via the cloth cover 141. Thereby, the first panel 131A is held, and a horizontal state is ensured.

The first panel 131A is kept in a horizontal state, and thus the cloth cover 141 is stretched by the first frame 134 and is kept in a stretched state.

In this way, the operation of attaching the radiation panel 131 is completed.

(4) Removal of radiation panels

(a) Holding release of the first panel

As shown in fig. 29, the first panel 131A is rotated against the attractive force of the attraction plate 139 generated by the magnetic force of the magnet MG.

Then, as shown in fig. 25 to 26, when the hand is released, the first panel 131A is in a state of freely rotating and hanging down in the vertical direction.

(b) Releasing the connection of the connection part

The second panel 131B is gripped and stretched from the state shown in fig. 25 to the state shown in fig. 23. That is, the radiation panel 131 is moved from the air conditioner 51 toward the panel base 111.

Thereby, the coupling pin 138 is disengaged from the coupling groove 119a of the stopper fitting 119, and the radiation panel 131 is released from the final fixation.

At this time, the slider 137 is slidably moved on the guide rail 57 and positioned at a low position beyond the step portion 57 a. Accordingly, the position of the end portion side of the second panel 131B connected to the distal end side of the radiation panel 131, that is, the first panel 131A is also lowered and separated from the lower surface of the casing 51A of the air conditioner 51. As a result, the outer frame member 133a of the second housing 135, which is the close contact member RM, is also released from close contact with the lower surface of the housing 51a via the cloth cover 141, and the radiation panel 131 is in the pre-fastened state.

(c) Rotation of the second panel

As shown in fig. 21 to 22, the second panel 131B is rotated to be inclined with the pin 137B of the slider 137 mounted on the guide rail 57 as a start point.

(d) Falling off

The second panel 131B is detached by gripping both ends thereof and lifting the slider 137 from the guide rail 57.

This completes the removal operation of the radiation panel 131.

3. Effect of action

When the air conditioner 51 is operated, conditioned air is blown out from the air outlet 55 and flows from the inlet 114 to the outlet 115 through the flow path 151. Thus, the temperature of the radiation panel 131 can be adjusted by air conditioning. Heating while cooling. Thereby, the room R is subjected to the radiation air conditioning.

(1) Prevention of dew formation

During cooling, the radiant air conditioning unit 11 of the present embodiment suppresses the occurrence of condensation on the radiation panel 131.

The reason will be described in detail.

(a) Cause of dew condensation

The moisture is contained in the air as a gas (water vapor).

The state where the air contains water vapor up to the limit is called a saturated state, and the amount of water vapor at this time is called a saturated water vapor amount. The saturated steam amount varies depending on the air temperature, and the higher the air temperature is, the lower the air temperature is.

Therefore, when the temperature of the air is gradually lowered, the water in the form of steam is saturated earlier or later at a high temperature, and changes to a liquid. That is, since the saturated steam amount also decreases with a decrease in the air temperature, if the temperature of the air is continuously decreased, the steam is saturated and becomes liquid at a certain time.

The temperature at this time is referred to as a dew point temperature.

The dew point temperature varies depending on the amount of water vapor contained in the air, and the higher the amount of water vapor is, the lower the amount of water vapor is.

More specifically, the saturated water vapor condenses due to the temperature lower than the dew point temperature, and becomes water droplets to adhere to the surface of the object. This is a phenomenon called condensation.

In this case, even if the air temperature is lowered from the same temperature as the starting point, the temperature at which condensation occurs is lower when the amount of water vapor contained is small than when it is large. For example, when the atmospheric temperature starts to decrease in an environment of 25 ℃, condensation occurs at about 14 ℃ when water vapor of 50% of the saturated water vapor amount is contained, whereas the temperature at which condensation occurs is about 6.5 ℃ when water vapor of only 30% is contained.

(b) Radiation air conditioner of the present embodiment

In the radiation air conditioner 11 of the present embodiment, the drying of air is promoted by the cooling operation of the air conditioner 51 on the rear surface side partitioned by the radiation panel 131, that is, the side where the flow path 151 of the air conditioner 51 is arranged, and the dried air is circulated. This is because the air introduced into the room R of the air conditioner 51 from the air inlet 52 is rapidly cooled when passing through the heat exchanger 53, and a part of the water vapor contained in the air is liquefied and removed.

Therefore, even if the amount of saturated steam is reduced by the temperature reduction in the cooling operation, the air passing through the air-conditioning air flow passage 151 is dried to lower the dew point temperature thereof, and condensation does not occur on the back surface of the radiation panel 131. More specifically, dew condensation does not occur on the rear surface fibers 141B and the front surface fibers 141A wound around the rear surface side in the fabric cover 141.

On the other hand, the front surface side of the radiation panel 131 is cooled by the cooling operation, and radiates the air in the cooling chamber R. Therefore, since the cloth cover 141, that is, the surface fibers 141A on the surface of the radiation panel 131 are kept at a low temperature, the air contacting the surface fibers 141A approaches the dew point temperature.

At this time, when the air in contact with the surface fiber 141A reaches the dew point temperature, the water vapor contained in the air becomes liquid.

(c) Principle of preventing dew formation

In contrast, in the present embodiment, the cloth cover 141 has air permeability.

Therefore, the air passing through the air conditioning air flow path 151 passes through the fabric cover 141 and leaks to the front side of the surface fiber 141A exposed to the indoor side R. As a result, dry air is layered on the front side of the surface fiber 141A.

Therefore, the dew point temperature of the air is lower than the temperature of the lowered surface fiber 141A on the front side of the surface fiber 141A where the dried air becomes a layer, and therefore dew condensation does not occur.

Based on the above principle, according to the present embodiment, it is possible to prevent condensation from occurring on the surface of the radiation panel 131 under various environments during cooling.

(2) Thinning of air conditioner

(a) Cross flow fan

The air conditioner 51 uses a cross flow fan 54 as a blowing source. When the cross flow fan 54 is used, the height of the casing 51a tends to be high anyway because the in-body flow path 81 needs to be bent.

In contrast, the air conditioner 51 of the present embodiment is provided with the airflow adjustment portion 82 including the inclined arrangement of the three-layer heat exchanger 53 and the pair of airflow adjustment plates 83, and thereby bends the in-body flow path 81 within a limited height dimension within the housing 51 a. Thus, the air intake port 52, the heat exchanger 53, the cross-flow fan 54, and the air outlet 55 can be arranged on a straight line.

Therefore, even if the cross flow fan 54 is used as the air supply source, the height of the air conditioner 51 can be reduced. As a result, the radiation air conditioner 11 can be realized in which the air conditioner 51 is covered with the radiation panel 131 along the ceiling surface C.

(b) Heat exchanger

The heat exchanger 53 inclines the cross-flow fan 54 side surface obliquely downward, and causes the air flow passing through the heat exchanger 53 to travel obliquely downward. Then, the airflow is guided to the upper and lower pair of airflow adjustment plates 83, and the traveling direction is changed from obliquely downward toward the cross flow fan 54. The flow of the air having the V-shape as described above contributes to generating an air flow for normally functioning the cross-flow fan 54 at only the distance between the heat exchanger 53 and the cross-flow fan 54.

(3) Heat exchanger

The heat exchanger 53 has three layers. Thereby, the area of the aluminum plate 53a contributing to heat exchange can be increased, and high heat exchange efficiency can be obtained.

On the other hand, the air drawn by the cross-flow fan 54 passes through the slits 53c formed between the aluminum plates 53a of the heat exchanger 53. Therefore, when the number of layers of the heat exchanger 53 increases, the air resistance increases accordingly, and the amount of air-conditioned air blown out from the air outlet 55 decreases.

In contrast, in the present embodiment, this problem is solved by inclining the heat exchanger 53 in the casing 51 a. As described above, the air passes in the direction orthogonal to the face of the heat exchanger 53. Therefore, if the number of refrigerant tubes 53b is the same, the area of the slit 53c can be enlarged in the direction inclined with respect to the air flow, as compared with the case where the heat exchanger 53 is disposed in the direction orthogonal to the air flow, and thus the air resistance can be reduced accordingly.

Such an inclined configuration of the heat exchanger 53 brings another advantage of improvement in heat exchange efficiency. This is because the area of the aluminum plate 53a contacted by the air can be increased by inclining with respect to the air flow.

As described above, the three-layer heat exchanger 53 arranged obliquely produces three effects simultaneously.

The first effect is: since the operation of generating the V-shaped airflow on the downstream side of the heat exchanger 53 is performed, it contributes to generating an airflow for normally functioning the cross-flow fan 54.

The second effect is: the resistance applied to the air passing through the slit 53c is reduced, thereby preventing a decrease in the amount of air-conditioning air blown out from the air outlet 55.

The third effect is: the area of the aluminum plate 53a contacted by the air is increased, and the efficiency of the heat exchange is improved.

(4) Enlargement of heat emitting area

(a) Enlargement of width direction

As shown in fig. 15 (a), the air conditioning air flow channel 151 is formed in a space between the rear panel 112 and the radiation panel 131 of the panel base 111. In this case, the width of the flow channel 151 is defined by the relative distance between the pair of side walls 113 provided on the panel base 111.

At this time, the relative interval of the pair of sidewalls 113 is determined by the width of the rear panel 112. The relative spacing of the pair of side walls 113 is not enlarged more than the width of the back panel 112. Therefore, the width of the flow path 151 of the air conditioning air is not increased more than the width of the rear panel 112.

In contrast, in the present embodiment, the hollow radiation panel 131 is used. The radiation panel 131 expands the internal space from the opening O in contact with the flow path 151 of the air conditioner, and forms a radiation surface RS on the surface opposite to the opening O. The radiation surface RS has a horizontal projection surface wider than the width of the back panel 112.

Therefore, according to the present embodiment, the heat radiation area of the radiation panel 131 can be expanded beyond the flow path width of the air-conditioning air defined by the pair of side walls 113. As a result, the heat radiation efficiency of the actual size or more can be obtained.

(b) Enlargement of area overlapping with air conditioner

As shown in fig. 15 (b), the hollow radiation panel 131 has a hollow region between a position beyond the air outlet 55 of the air conditioner 51 and a position overlapping the air conditioner 51, and the radiation surface RS is also disposed in this region.

Therefore, the heat radiation area of the radiation panel 131 can be further enlarged.

Further, the expansion range of the heat radiation region is limited to a region where the close contact member RM generated based on the outer frame member 133a of the second housing 135 is in close contact with the case 51a of the air conditioner 51 via the cloth cover 141. Since the close contact member RM is disposed directly below the heat exchanger 53 built in the air conditioner 51 in the vertical direction, the entire area up to the close contact member RM serves as a heat radiation area, and the heat radiation efficiency is improved.

(5) Prevention of shortcut phenomena

As described above, by the configuration in which the hollow region of the radiation panel 131 is expanded to the position overlapping the air conditioner 51, the air-conditioned air blown out from the air outlet 55 of the air conditioner 51 is bypassed to the rear surface side of the air conditioner 51, that is, the side provided with the air intake opening 52. At this time, when the air-conditioning air flows around to the rear surface of the air conditioner 51, the air-conditioning air is introduced from the air introduction port 52, which causes a so-called short-cut phenomenon. This reduces the operating efficiency of the air conditioner 51, and therefore some countermeasure is required.

In this regard, in the present embodiment, the close contact member RM formed based on the outer frame member 133a of the second frame body 135 blocks the flow of the air-conditioning air to prevent the occurrence of the shortcut phenomenon. When the radiation panel 131 is permanently fixed (see fig. 27 to 30), the close contact member RM is in close contact with the case 51a of the air conditioner 51 via the cloth cover 141, and blocks the flow of the conditioned air passing through the inside of the radiation panel 131 toward the rear surface side of the air conditioner 51.

In the present embodiment, when the first panel 131A is in the horizontal state (see fig. 27 and 30), the cloth cover 141 is stretched by the first frame 134 to be secured in the stretched state. Accordingly, the surface fiber 141A of the cloth cover 141 serving as the radiation surface RS is brought into close contact with the close contact member RM, and leakage of the air conditioning air from between the close contact member RM and the surface fiber 141A can be prevented.

Thus, according to the present embodiment, it is possible to prevent a decrease in the operation efficiency of the air conditioner 51 due to the shortcut phenomenon.

(6) Effects due to shape and structure of the sheet

The cloth cover 141 has a bag shape for accommodating the frame 132.

Thereby bringing about the following operational effects.

(a) Enlargement of heat-emitting area

One effect is to easily make the radiation panel 131 hollow.

As a result, the heat radiation area of the radiation surface RS can be easily expanded in the width direction to the region overlapping the air conditioner 51.

(b) Make the manufacture easy

Another operational effect is that the frame 132 can be easily attached, and the radiation panel 131 can be easily manufactured.

(c) Elimination of disadvantages

On the other hand, since the air-conditioning air passes through the two cloth covers 141 from the flow path 151 to the room R, the cloth cover 141 on the flow path 151 side becomes a resistance to the air-conditioning air heading toward the cloth cover 141 on the room R side. At this time, if the resistance is too large, the movement of the layer of dry conditioned air is obstructed in the region of the cloth cover 141 facing the room R.

Therefore, in the present embodiment, the opening O is provided in the surface of the cloth cover 141 facing the air conditioning air flow path 151, and a mesh cloth is provided in the opening O.

More specifically, the fabric cover 141 is formed into a bag shape by adopting a sewing structure of the fiber material (surface fiber 141A) exposed on the front surface side of the indoor R side and the fiber material (back surface fiber 141B) facing the back surface side of the back panel 112. Thus, the back surface fiber 141B does not need to be a body of the cloth cover 141, and various materials and forms can be freely used. In the present embodiment, the mesh-like material is used for the back surface fiber 141B, thereby reducing the resistance of the back surface fiber 141B against the air-conditioning air flowing from the flow path 151 toward the cloth cover 141 on the indoor R side.

Also, the stitched portions SP of the face fibers 141A and the back fibers 141B are aligned with the sidewall 113. This prevents the stitched portion SP from being visible through the face fiber 141A when the radiation panel 131 is viewed from below.

According to the present embodiment, when the radiation panel 131 is attached and detached, the radiation panel 131 can be fastened in an inclined state. Thereafter, the radiation panel 131 is moved while being kept horizontal, whereby the radiation panel 131 can be permanently fixed.

Therefore, the attachment and detachment operation of the radiation panel 131 can be facilitated.

In this case, in the present embodiment, the radiation panel 131 is divided into the first panel 131A and the second panel 131B, and when the radiation panel 131 is pre-fastened and permanently fixed, the radiation panel 131 may be concentrated on the first panel 131A which is compact as compared with when the radiation panel 131 is concentrated on. This further facilitates the attachment/detachment operation of the radiation panel 131.

(8) Freedom of material selection of sheet material

According to the present embodiment, the air-conditioned air blown out from the air outlet 55 of the air conditioner 51 is guided out into the room R from the outlet 115. That is, it is not necessary to intentionally lead out the air-conditioning air into the room R through the cloth cover 141.

Therefore, the cloth cover 141 does not require characteristics for passing the air conditioning air.

Basically, the fabric cover 141 is required to have air permeability of the extent that air passing through the air conditioning air flow path 151 leaks to the indoor R side and a layer of dried air is generated on the front side of the surface fiber 141A.

Therefore, according to the present embodiment, the range of material selection for the sheet can be expanded.

(9) Suppression of deformation of sheet material

According to the present embodiment, the cloth cover 141 of the radiation panel 131 is disposed along the direction in which the air-conditioning air blown out from the air outlet 55 flows through the flow path 151. Further, since the air flowing through the flow channel 151 is discharged from the discharge port 115, the internal pressure in the flow channel 151 does not increase.

Therefore, during the operation of the radiation air conditioner 11, the deformation of the cloth cover 141 can be suppressed as much as possible without causing the flow of air or the increase in pressure, which would cause the cloth cover 141 of the radiation panel 131 to flex.

(10) Thermal efficiency

The panel base 111 is made of a heat insulating material, and is in a state equivalent to a state where a heat insulating portion is provided on the back panel 112 and the side wall 113.

Accordingly, the heat of the air-conditioning air flowing through the flow path 151 is not taken away by the panel base 111, and the cloth cover 141 can be effectively heated or cooled. As a result, the radiant air conditioning unit 11 having excellent thermal efficiency can be obtained.

Further, since the panel base 111 itself is molded from a heat insulating material, there is no need for a complicated matter of separately preparing a heat insulating material and attaching the heat insulating material to the panel base 111, and it is possible to reduce the component cost and the manufacturing cost of the panel base 111 and to facilitate the manufacturing.

(11) Special feature of appearance

(a) Beautiful appearance

The air conditioner 51 is housed in a recess C1 provided on one surface (ceiling surface C) of the room R, and the panel base 111 is joined to the one surface of the room R. This makes it possible to make the radiant air conditioning unit 11 look thin and small in the room R.

The radiation panel 131 also covers the air conditioner 51, and the bag-shaped cloth cover 141 is closed at its open side by the fastener 143, so that the radiation air conditioner 11 looks like only one radiation panel 131 disposed near the ceiling surface C in appearance. At this time, the radiation panel 131 appears soft according to the feeling and the feeling of a human body because only the cloth cover 141 of the fiber material is exposed.

Therefore, the radiant air-conditioning apparatus 11 can be obtained in a refined appearance without causing any trouble or trouble when installed in the room R.

(b) Usage and beauty

Considering the reason that the radiant air-conditioning apparatus 11 looks like a single radiant panel 131 arranged only in the vicinity of the ceiling surface C in appearance, the following three main causes are noted:

the radiation panel 131 is hollow due to the structure in which the frame 132 is covered with the cloth cover 141

The horizontal projection area of the radiation panel 131 is larger than the width of the back panel 112

The horizontal projected area of the radiation panel 131 is larger than the combined area of the air conditioner 51 and the back panel 112.

It is understood that the structure of the radiation panel 131 and the relationship between the horizontal projected areas of the respective portions are closely related to the "use" of the expansion of the heat radiation area. That is, the relationship in the size of the horizontal projection area in which the width of the radiation panel 131 is wider than that of the rear panel 112 contributes to the expansion of the heat radiation area of the radiation surface RS in the width direction. The relationship in the size of the horizontal projection area such that the radiation panel 131 covers the air conditioner 51 helps to expand the heat radiation area of the radiation surface RS to the region overlapping the air conditioner 51. The expansion of the heat radiation area of the radiation surface RS is also considered to depend on the structure of the radiation panel 131 having a hollow structure.

From the above observation, it is understood that the appearance of the radiant air conditioning apparatus 11 is "beauty" in connection with "use".

4. Modification example

Various modifications and changes can be made in the implementation.

(1) Installation place of radiation air conditioner

For example, although the radiant air-conditioning apparatus 11 provided on the ceiling surface C is shown in the present embodiment, it may be configured to be provided on a surface different from the room R, for example, a wall surface W (see fig. 1) in implementation. In this case, if a recess is provided in the wall surface W and the air conditioner 51 is housed in the recess, the radiation air conditioner 11 can be realized in a flat form in which the radiation panel 131 is provided only on the wall surface W, as in the present embodiment.

(2) Setting state of radiation air conditioner

Although the ceiling surface C is a folding ceiling and the air conditioner 51 is housed in the pit C1, this is not essential and the air conditioner 51 may be provided on a flat ceiling surface C or a wall surface W. At this time, although the air outlet 55 of the air conditioner 51 is easily separated from the ceiling surface C or the wall surface W, the introduction port 114 serving as the inlet of the flow channel 151 can be made to face the air outlet 55 by providing the radiation panel unit 101 so as to be raised from the ceiling surface C or the wall surface W.

The manner of attaching the air conditioner 51 to the ceiling surface C is not limited to the above-described eye bolt, and various manners can be adopted. For example, various kinds of deformation are allowed, such as a fastening structure using a screw or the like, a fastening structure using a surface tape, and a press-fit structure.

(3) Air conditioner and back panel arrangement

In the present embodiment, the air outlet 55 of the air conditioner 51 and the rear panel 112 of the panel base 111 are disposed adjacent to each other with a space therebetween. In practice, the rear panel 112 may be attached to the ceiling surface C so as to be adjacent to the air outlet 55 of the air conditioner 51.

At this time, it is important that the inlet port 114 of the panel base 111 is connected to the outlet port 55.

The term "connected" as used herein means that the air-conditioned air blown out from the air outlet 55 is guided to the inlet 114, and as long as this is done, the air outlet 55 and the inlet 114 may be disposed separately, may be disposed in a manner of being connected to each other, or may be disposed to overlap each other. That is, the air conditioner 51 and the rear panel 112 may be disposed separately, may be disposed in a manner of being connected to each other, or may be disposed to overlap each other.

(4) Structure of radiation panel

The radiation panel 131 is not necessarily limited to the structure in which the frame 132 is covered with the cloth cover 141, and may be, for example, a structure in which japanese paper is attached to the frame 132 or a structure in which the panel having air permeability is assembled. The radiation panel 131 is hollow, having a ventilation radiation surface RS on one side and an opening O on the opposite side, and allows various materials and structures.

In the case of adopting a structure in which the frame 132 is covered with the cloth cover 141 as in the radiation panel 131 of the present embodiment, various modifications and changes are allowed to the structure, shape, material, and the like of the frame 132 and the cloth cover 141. For example, the number and arrangement position of the rod-like members 133 constituting the housing 132 are not limited to those described in the present embodiment, and various numbers and arrangements are possible.

(5) Fixing structure of radiation panel

(a) Mounting position of slider

In the present embodiment, an example of a structure in which the slider 137 is attached to the second housing 135 is illustrated. In practice, the configuration is not limited to this, and the slider 137 may be provided in a connecting region between the first housing 134 and the second housing 135. For example, the slider 137 may be attached to the first housing 134. Alternatively, the hinge 136 is used as a member for coupling the first frame 134 and the second frame 135, but a larger member may be used as such a coupling member, and the slider 137 may be attached to such a large coupling member.

(b) Other securing arrangements

In the present embodiment, the radiation panel 131 is fixed to the air conditioner 51 and the panel base 111 by the pair of sliders 137, the pair of coupling pins 138, and the pair of adsorption plates 139, and various configurations can be employed for fixing the radiation panel 131.

For example, although the weight of the radiation panel 131 is used, a fixing structure using only magnets may be employed.

(c) First panel

The structure for fixing the first panel 131A is not limited to the magnet MG, and various kinds of deformation are permitted, for example, a fastening structure by a screw or a bolt, a fastening structure using a surface tape, a press-fit structure, and the like.

(6) Form of the radiation panel

In the above embodiment, the radiation panel 131 has a flat plate shape, but various forms are acceptable in implementation.

For example, as shown in fig. 31 (a), the radiation panel 131 may have an arched shape with both sides hanging down when viewed from the front. In this case, the planar shape of the radiation panel 131 may be a rectangular shape as shown in fig. 31 (b), or may be an elliptical shape as shown in fig. 31 (c), and various shapes are acceptable.

The radiation panel 131 does not need to be in close contact with the ceiling surface C, and may be suspended from the ceiling surface C as shown in fig. 32.

(7) Side wall

In the above embodiment, the pair of side walls 113 are illustrated as rising from both side edges of the back panel 112. In contrast, in practice, the side wall 113 does not necessarily have to stand from the side edge, and may stand from a position close to the center.

In the present embodiment, the wall portion realized as the pair of side walls 113 allows all the forms as long as the wall portion stands in a surrounding manner with the introduction port 114 and the discharge port 115 left from the rear panel 112.

Further, the pair of side walls 113 may not be integral with the back panel 112 as long as they are interposed between the back panel 112 and the radiation panel 131.

(8) Discharge port

In the above embodiment, the discharge port 115 is provided in the region facing the introduction port 114, but various modifications and changes are allowable in implementation. For example, discharge port 115 may be provided in a part of side wall 113, and in this case, discharge port 115 may be distributed to a plurality of locations.

(9) Variation of position of clip chain of sheet material

The position of the fastener chain 143 of the cloth cover 141 may be, for example, a position close to one side as shown in fig. 33 (a) as in the above-described embodiment, a position closing three sides as shown in fig. 33 (c), a V-shape as shown in fig. 33 (d), or the like, and various embodiments are acceptable.

(10) Another embodiment of the radiation air conditioner

Fig. 34 is a front view showing another configuration example of the radiant air conditioning device 11.

In the embodiment shown in fig. 1 to 33 and the present modification, the panel base 111 is provided with the side wall 113, thereby securing a space for the flow path 151 between the back panel 112 and the radiation panel 131. In contrast, the radiation panel unit 101 of the radiation air conditioner 11 shown in fig. 34 secures a space for the flow path 151 by the radiation panel 131.

Therefore, the radiation panel 131 is provided with the frame 132 having a three-dimensional shape instead of a planar shape, thereby creating a space for the flow path 151 with the back panel 112. More specifically, frame 132 is curved in a curved shape when viewed from the front and back sides, and both end portions are connected and fixed to back panel 112. The cloth cover 141 is attached to the housing 132 so as to cover the room R. For example, the cloth cover 141 may be fixed to the frame 132 by fastening both side portions of the cloth cover 141 to both side portions of the frame 132. The cloth cover 141 is fixed to the frame 132 in an expanded state.

With this structure, the panel base 111 is mainly configured of the rear panel 112 without the side wall 113.

In the radiation panel unit 101 configured as described above, the inlet port 114 is formed on the rear surface side, the outlet port 115 is formed on the front surface side, and the flow path 151 of the air conditioning air from the inlet port 114 to the outlet port 115 is formed between the rear surface panel 112 of the panel base 111 and the radiation panel 131.

Therefore, the same effect as that of the embodiment shown in fig. 1 to 33 is obtained.

(11) Others

Otherwise, all modifications and changes can be made.

Description of the reference numerals

11 radiation air conditioning device

51 air conditioner

51a casing

52 air intake

53 heat exchanger

53a aluminum plate

53b refrigerant tube

53c slit

54 Cross flow fan (cross flow fan)

55 air outlet

56 filter

57 guide rail

57a step part

57b restriction piece

61 cover (Cavity component)

62 baffle

63 inclined plane

64 inclined inner surface

71 magnet holder

81 flow path in body

82 airflow adjusting part

83 airflow adjusting plate (Cavity component)

101 radiation panel unit

111 Panel base

112 back panel

113 side wall (wall part)

114 introduction port

115 discharge port

116 opposite the surface

117 stop

119 backstop metal fitting (connector)

119a connecting groove

131 radiation panel

131A first panel

131B second panel

132 frame body

133 Bar-shaped member

133a outer frame member (close contact member)

133b reinforcing member

134 first frame body

135 second frame

136 hinge

137 slider

137a sheet metal

137b pin

138 connecting pin (connected piece)

139 adsorption plate (adsorbed component)

139a adsorption surface

141 cloth cover (cloth)

141A surface fiber

141B inner fiber (gridding cloth)

142 open edge

143 fastener chain

151 flow path

A rotating shaft

C ceiling surface

C1 pit (ceiling)

CN connecting part

CR control unit

DR drive unit

E edge

M motor

MG magnet (Panel holding part)

O opening part

R indoor

RM close contact member

RS radiating surface

SP suture section

W wall surface

Claims

1. An air conditioner, wherein the air conditioner comprises:

a casing in which an air inlet and an air outlet are disposed on a surface intersecting a horizontal plane and on a surface opposite to the horizontal plane;

a heat exchanger disposed between the air intake port and the air outlet port;

a cross-flow fan disposed on the side of the blowing outlet with respect to the heat exchanger; and

and a drive unit that drives a drive source of the cross-flow fan such that a rotational direction of a region above the rotational axis is a direction from the heat exchanger toward the outlet.

2. The air conditioner of claim 1,

the air conditioner includes an airflow adjusting portion that generates an airflow directed from obliquely below toward the cross flow fan on the air intake side and generates an airflow directed from the cross flow fan obliquely below on the air outlet side.

3. The air conditioner of claim 2,

the air introduction port, the heat exchanger, the cross-flow fan, and the air outlet are provided on a straight line.

4. The air conditioner according to claim 2,

the heat exchanger inclines one side of the cross flow fan to face downwards,

the airflow adjusting portion directs the downward airflow orthogonal to the surface of the heat exchanger toward the cross-flow fan from obliquely below along the bottom surface in the casing.

5. The air conditioner of claim 2,

the airflow adjusting portion connects the cross-flow fan and the air outlet by a cavity member forming a space inclined downward from the cross-flow fan toward the air outlet.

6. The air conditioner of claim 2,

the air introduction port, the heat exchanger, the cross-flow fan, and the air outlet are provided on a straight line,

the heat exchanger inclines one side of the cross flow fan to face downwards,

the airflow adjusting portion causes the downward airflow orthogonal to the surface of the heat exchanger to be directed toward the cross-flow fan from obliquely below along the bottom surface in the casing, and connects the cross-flow fan and the air outlet by a space that is inclined downward from the cross-flow fan toward the air outlet.

7. A radiant air conditioning unit, comprising:

the air conditioner of any one of claims 1 to 6 provided on a ceiling surface;

a rear panel mounted on a ceiling surface adjacent to a blow-out port of the air conditioner;

a vented radiation panel having a horizontal projected area larger than an area where the air conditioner and the rear panel are combined; and

and a pair of side walls interposed between the rear panel and the radiation panel in a direction in which the conditioned air is blown out from the air outlet.

8. The radiological air conditioning device according to claim 7, wherein,

the radiation panel has a hollow structure having a radiation surface with air permeability on one surface and an opening disposed on the back panel side on the surface opposite to the radiation surface,

the pair of side walls is fitted between the back panel and the radiation panel so as not to protrude from the opening and faces each other.

9. The radiological air conditioning device according to claim 8, wherein,

the radiation panel is provided in a state in which a bag-shaped cloth is stretched in a frame body.

10. The radiological air conditioning device according to claim 9, wherein,

the cloth has a mesh at the opening.

11. The radiological air conditioning device according to claim 9, wherein,

the frame body connects a first frame body disposed on the air conditioner side and a second frame body disposed on the rear panel side in a rotatable manner.

12. The radiological air conditioning device according to claim 11, wherein,

the second housing is configured such that an outer frame member connected to the first housing is a close contact member that is in close contact with a housing of the air conditioner via the cloth.

13. The radiological air conditioning device according to claim 9, wherein,

the frame body includes a rod-shaped close-contact member that is in close contact with a casing of the air conditioner via the cloth.

14. The radiological air conditioning device according to claim 13, wherein,

the frame is rotatable at a position on the opposite side of the back panel from the close contact member.

15. The radiological air conditioning device according to claim 12, wherein,

the close contact member is disposed directly below a heat exchanger built in the air conditioner in a vertical direction.