JP7089158B2 - Radiation panel manufacturing method - Google Patents

Radiation panel manufacturing method Download PDF

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JP7089158B2
JP7089158B2 JP2018049292A JP2018049292A JP7089158B2 JP 7089158 B2 JP7089158 B2 JP 7089158B2 JP 2018049292 A JP2018049292 A JP 2018049292A JP 2018049292 A JP2018049292 A JP 2018049292A JP 7089158 B2 JP7089158 B2 JP 7089158B2
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heat transfer
hole
notch
transfer member
transfer tube
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JP2019158305A (en
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康介 森本
隆 長谷川
宏 海老名
聡通 仲山
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Daikin Industries Ltd
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本開示は、輻射パネル及び空気調和装置に関する。 The present disclosure relates to radiation panels and air conditioners.

特許文献1には、輻射型室内機を備えた空気調和装置が開示されている。輻射型室内機は、鉛直方向に立設する一対の縦フレームと、一対の縦フレームの間に配置される伝熱部材とを備える。伝熱部材には、貫通孔が形成され、この貫通孔の内部に伝熱管が挿通される。空気調和装置の暖房運転時には、圧縮機で圧縮された高圧の冷媒が、輻射型室内機の伝熱管で放熱する。この結果、輻射型室内機の伝熱部材から室内空間へ輻射熱が放出される。 Patent Document 1 discloses an air conditioner including a radiant indoor unit. The radiant indoor unit includes a pair of vertical frames erected in the vertical direction and a heat transfer member arranged between the pair of vertical frames. A through hole is formed in the heat transfer member, and a heat transfer tube is inserted into the through hole. During the heating operation of the air conditioner, the high-pressure refrigerant compressed by the compressor dissipates heat through the heat transfer tube of the radiant indoor unit. As a result, radiant heat is released from the heat transfer member of the radiant indoor unit to the indoor space.

特開2015-25627号公報JP-A-2015-25627

輻射パネルの暖房能力や冷房能力を向上させるためには、伝熱部材と伝熱管の熱抵抗を小さくするのが好ましい。 In order to improve the heating capacity and cooling capacity of the radiant panel, it is preferable to reduce the thermal resistance of the heat transfer member and the heat transfer tube.

本開示の目的は、伝熱部材と伝熱管の熱抵抗を低減できる輻射パネルを提供することである。 An object of the present disclosure is to provide a radiant panel capable of reducing the thermal resistance of a heat transfer member and a heat transfer tube.

第1の態様は、貫通孔(64)が形成される伝熱部材(70A)と、前記貫通孔(64)に挿通される伝熱管(53)とを備えた輻射パネルであって、前記貫通孔(64)の内壁(65)に切り欠き(C)が形成されていることを特徴とする輻射パネルである。 The first aspect is a radiant panel including a heat transfer member (70A) in which a through hole (64) is formed and a heat transfer tube (53) inserted through the through hole (64). It is a radiation panel characterized in that a notch (C) is formed in the inner wall (65) of the hole (64).

第1の態様では、貫通孔(64)の内壁(65)に切り欠き(C)を形成することで、貫通孔(64)の内部に挿通した伝熱管(53)を拡管させる際、貫通孔(64)の周囲の周壁(68)が弾性変形し易くなる。これにより、伝熱管(53)の管径を確実に拡げることができ、伝熱管(53)と伝熱部材(70A)とを強く、あるいは密に接触させることができる。この結果、伝熱部材(70A)と伝熱管(53)の熱抵抗を低減できる。 In the first aspect, by forming a notch (C) in the inner wall (65) of the through hole (64), the through hole is formed when the heat transfer tube (53) inserted into the inside of the through hole (64) is expanded. The peripheral wall (68) around (64) is easily elastically deformed. As a result, the diameter of the heat transfer tube (53) can be surely expanded, and the heat transfer tube (53) and the heat transfer member (70A) can be brought into strong or close contact with each other. As a result, the thermal resistance of the heat transfer member (70A) and the heat transfer tube (53) can be reduced.

第2の態様は、第1の態様において、前記切り欠き(C)は、前記伝熱管(53)に沿って前記伝熱部材(70A)の両端に亘って延びていることを特徴とする輻射パネルである。 A second aspect is radiation characterized in that, in the first aspect, the notch (C) extends along the heat transfer tube (53) across both ends of the heat transfer member (70A). It is a panel.

第2の態様では、貫通孔(64)の周壁(68)の両端に亘る全体を、伝熱管(53)と強く、あるいは密に接触させることができる。 In the second aspect, the entire peripheral wall (68) of the through hole (64) can be brought into strong or close contact with the heat transfer tube (53).

第3の態様は、第1又は2の態様において、前記伝熱部材(70A)には、肉抜き孔(81,82,83,84)が形成され、前記切り欠き(C)は、前記貫通孔(64)と前記肉抜き孔(81,82,83,84)とを連通させることを特徴とする輻射パネルである。 In the third aspect, in the first or second aspect, the heat transfer member (70A) is formed with a lightening hole (81,82,83,84), and the notch (C) is penetrated. It is a radiation panel characterized in that the hole (64) and the lightening hole (81,82,83,84) are communicated with each other.

第3の態様では、貫通孔(64)と肉抜き孔(81,82,83,84)とが切り欠き(C)を介して連通することで、貫通孔(64)の周壁(68)の一部が分断される。これにより、伝熱管(53)の管径を拡げる際、周壁(68)の弾性変形が更に促進される。 In the third aspect, the through hole (64) and the lightening hole (81,82,83,84) communicate with each other through the notch (C) to form the peripheral wall (68) of the through hole (64). Part is divided. As a result, when the diameter of the heat transfer tube (53) is increased, the elastic deformation of the peripheral wall (68) is further promoted.

第4の態様は、第1乃至3の態様のいずれか1つにおいて、前記伝熱部材(70A)の外部と、前記切り欠き(C)の内部とを遮断する封止部材(90)を備えていることを特徴とする輻射パネルである。 A fourth aspect includes a sealing member (90) that shields the outside of the heat transfer member (70A) from the inside of the notch (C) in any one of the first to third aspects. It is a radiation panel characterized by being.

第4の態様では、切り欠き(C)の内部での結露水の発生を抑制できる。 In the fourth aspect, the generation of dew condensation water inside the notch (C) can be suppressed.

第5の態様は、第1乃至4の態様のいずれか1つの輻射パネル(40)を備えた空気調和装置である。 A fifth aspect is an air conditioner provided with a radiation panel (40) according to any one of the first to fourth aspects.

図1は、実施形態に係る空気調和装置の概略構成を示す配管系統図である。FIG. 1 is a piping system diagram showing a schematic configuration of an air conditioner according to an embodiment. 図2は、実施形態に係る輻射パネルの概略構成を示す正面図である。FIG. 2 is a front view showing a schematic configuration of a radiation panel according to an embodiment. 図3は、実施形態に係る伝熱部材の全体の横断面図である。FIG. 3 is a cross-sectional view of the entire heat transfer member according to the embodiment. 図4は、実施形態に係る伝熱部材の要部の横断面図である。FIG. 4 is a cross-sectional view of a main part of the heat transfer member according to the embodiment. 図5は、変形例1に係る伝熱部材の要部の横断面図である。FIG. 5 is a cross-sectional view of a main part of the heat transfer member according to the modified example 1. 図6は、変形例2に係る伝熱部材の要部の縦断面図である。FIG. 6 is a vertical sectional view of a main part of the heat transfer member according to the modified example 2.

《実施形態》
本実施形態の空気調和装置(10)について図面を参照しながら説明する。
<< Embodiment >>
The air conditioner (10) of the present embodiment will be described with reference to the drawings.

〈全体構成〉
空気調和装置(10)は、室内の冷房及び暖房を切り換えて行う。図1に示すように、空気調和装置(10)は、室外ユニット(20)と、室内ユニット(30)と、輻射パネル(40)とを備える。
<overall structure>
The air conditioner (10) switches between cooling and heating in the room. As shown in FIG. 1, the air conditioner (10) includes an outdoor unit (20), an indoor unit (30), and a radiation panel (40).

室外ユニット(20)は、室外に設置される。室外ユニット(20)は、熱源ユニットを構成している。室外ユニット(20)には、圧縮機(21)、室外熱交換器(22)、室外膨張弁(23)、四方切換弁(24)、及び室外ファン(25)が設けられる。 The outdoor unit (20) is installed outdoors. The outdoor unit (20) constitutes a heat source unit. The outdoor unit (20) is provided with a compressor (21), an outdoor heat exchanger (22), an outdoor expansion valve (23), a four-way switching valve (24), and an outdoor fan (25).

室内ユニット(30)は、室内の天井付近に設けられる。室内ユニット(30)は、室内ファン(33)によって搬送される空気により、冷房又は暖房を行う対流型の室内機を構成する。室内ユニット(30)の数量は、1つ又は2つ以上である。各室内ユニット(30)には、室内熱交換器(31)、室内膨張弁(32)、及び室内ファン(33)が設けられる。 The indoor unit (30) is provided near the ceiling in the room. The indoor unit (30) constitutes a convection type indoor unit that cools or heats by the air conveyed by the indoor fan (33). The number of indoor units (30) is one or two or more. Each indoor unit (30) is provided with an indoor heat exchanger (31), an indoor expansion valve (32), and an indoor fan (33).

輻射パネル(40)は、室内の床面に設置される。輻射パネル(40)は、輻射熱の移動により、冷房又は暖房を行う輻射型の室内機を構成する。輻射パネル(40)の数量は、1つ又は2つ以上である。輻射パネル(40)は、パネル本体(60)と、輻射膨張弁(50)とが設けられる。輻射パネル(40)の詳細は後述する。 The radiation panel (40) is installed on the floor of the room. The radiant panel (40) constitutes a radiant type indoor unit that cools or heats by transferring radiant heat. The number of radiant panels (40) is one or more. The radiation panel (40) is provided with a panel body (60) and a radiation expansion valve (50). The details of the radiation panel (40) will be described later.

室外ユニット(20)、室内ユニット(30)、及び輻射パネル(40)が連絡配管で接続されることで、冷媒回路(11)が構成される。冷媒回路(11)では、充填された冷媒が循環することで冷凍サイクルが行われる。本実施形態の冷媒回路(11)では、室内ユニット(30)及び輻射パネル(40)が並列に接続される。 The refrigerant circuit (11) is configured by connecting the outdoor unit (20), the indoor unit (30), and the radiation panel (40) with a connecting pipe. In the refrigerant circuit (11), the refrigeration cycle is performed by circulating the filled refrigerant. In the refrigerant circuit (11) of the present embodiment, the indoor unit (30) and the radiation panel (40) are connected in parallel.

〈輻射パネルの全体構成〉
輻射パネル(40)の全体構成について図2を参照しながら説明する。輻射パネル(40)は、一対の支柱(41)と、パネル本体(60)と、底板(42)とを備える。
<Overall configuration of radiation panel>
The overall configuration of the radiation panel (40) will be described with reference to FIG. The radiation panel (40) includes a pair of columns (41), a panel body (60), and a bottom plate (42).

支柱(41)は、輻射パネル(40)の左右側端に1つずつ設けられる。各支柱(41)は、床面上に立設し、上下方向に延びている。 One column (41) is provided at each of the left and right ends of the radiation panel (40). Each column (41) stands on the floor and extends in the vertical direction.

パネル本体(60)は、一対の支柱(41)の間に設けられる。パネル本体(60)は、その前面及び後面が室内空間に露出している。パネル本体(60)は、その内部を流れる冷媒と室内空気とを熱交換させる。パネル本体(60)の詳細は後述する。 The panel body (60) is provided between a pair of columns (41). The front and rear surfaces of the panel body (60) are exposed in the interior space. The panel body (60) exchanges heat between the refrigerant flowing inside the panel body (60) and the indoor air. Details of the panel body (60) will be described later.

底板(42)は、一対の支柱(41)の下端に連結するように、該一対の支柱(41)の間を左右に延びている。底板(42)は、アンカーボルト等の締結部材(図示省略))を介して室内の床面に固定される。一対の支柱(41)の上端は、固定部(43)を介して天井側の吊りボルト(図示省略)と連結する。 The bottom plate (42) extends left and right between the pair of columns (41) so as to be connected to the lower ends of the pair of columns (41). The bottom plate (42) is fixed to the floor surface in the room via fastening members (not shown) such as anchor bolts. The upper ends of the pair of columns (41) are connected to the suspension bolts (not shown) on the ceiling side via the fixing portion (43).

輻射パネル(40)では、パネル本体(60)の下側に下部収容室(44)が形成される。下部収容室(44)には、パネル本体(60)から発生した結露水を回収するためのドレンパン(図示省略)が設けられる。下部収容室(44)の前側及び後側の各開放面は、下部カバー(46)によってそれぞれ覆われる。各下部カバー(46)は、例えば一対の支柱(41)の下部に着脱可能に取り付けられる。 In the radiation panel (40), a lower accommodation chamber (44) is formed below the panel body (60). The lower storage chamber (44) is provided with a drain pan (not shown) for collecting the dew condensation water generated from the panel main body (60). The front and rear open surfaces of the lower containment chamber (44) are each covered by a lower cover (46). Each lower cover (46) is detachably attached to, for example, the lower part of a pair of columns (41).

輻射パネル(40)では、パネル本体(60)の上側に上部収容室(47)が形成される。上部収容室(47)には、冷媒配管のガス管及び液管(図示省略)が収容される。液管には、輻射膨張弁(50)が接続される。上部収容室(47)の前側及び後側の各開放面は、上部カバー(48)によってそれぞれ覆われる。各上部カバー(48)は、例えば一対の支柱(41)の上部に着脱可能に取り付けられる。 In the radiation panel (40), the upper accommodation chamber (47) is formed on the upper side of the panel body (60). The gas pipe and the liquid pipe (not shown) of the refrigerant pipe are housed in the upper storage chamber (47). A radiant expansion valve (50) is connected to the liquid pipe. Each open surface on the front and rear sides of the upper containment chamber (47) is covered by the upper cover (48), respectively. Each top cover (48) is detachably attached to, for example, the top of a pair of stanchions (41).

〈パネル本体の全体構成〉
パネル本体(60)の構成について図3及び図4を参照しながら説明する。
<Overall configuration of the panel body>
The configuration of the panel body (60) will be described with reference to FIGS. 3 and 4.

パネル本体(60)は、下部端板(61)と、上部端板(62)と、複数(本例では6つ)の熱交換エレメント(70)とを備えている。本実施形態のパネル本体(60)では、複数の熱交換エレメント(70)が連結されることで、伝熱部材(70A)が構成される。伝熱部材(70A)の内部には、冷媒回路(11)に接続する伝熱管(53)が配設される。 The panel body (60) includes a lower end plate (61), an upper end plate (62), and a plurality of (six in this example) heat exchange elements (70). In the panel body (60) of the present embodiment, a heat transfer member (70A) is configured by connecting a plurality of heat exchange elements (70). Inside the heat transfer member (70A), a heat transfer tube (53) connected to the refrigerant circuit (11) is arranged.

下部端板(61)は、パネル本体(60)の下端に配置される。下部端板(61)は、一対の支柱(41)に連結するように、該一対の支柱(41)の間を左右に延びている。上部端板(62)は、パネル本体(60)の上端に配置される。上部端板(62)は、一対の支柱(41)に連結するように、該一対の支柱(41)の間を左右に延びている。 The lower end plate (61) is arranged at the lower end of the panel body (60). The lower end plate (61) extends left and right between the pair of columns (41) so as to be connected to the pair of columns (41). The upper end plate (62) is arranged at the upper end of the panel body (60). The upper end plate (62) extends left and right between the pair of columns (41) so as to be connected to the pair of columns (41).

複数の熱交換エレメント(70)は、上部端板(62)及び下部端板(61)の間に支持される。複数の熱交換エレメント(70)は、締結部材(例えばタッピンネジ)を介して上部端板(62)及び下部端板(61)に固定される。 A plurality of heat exchange elements (70) are supported between the upper end plate (62) and the lower end plate (61). The plurality of heat exchange elements (70) are fixed to the upper end plate (62) and the lower end plate (61) via a fastening member (for example, a tapping screw).

熱交換エレメント(70)は、アルミ材料で構成される。熱交換エレメント(70)は、押し出し成型により製造される。つまり、熱交換エレメント(70)は、押し出し方向(図2の上下方向)に直角な断面形状が、該押し出し方向の両端に亘って略同一となる。 The heat exchange element (70) is made of aluminum material. The heat exchange element (70) is manufactured by extrusion molding. That is, the heat exchange element (70) has substantially the same cross-sectional shape perpendicular to the extrusion direction (vertical direction in FIG. 2) over both ends of the extrusion direction.

本実施形態の熱交換エレメント(70)(パネル本体(60))では、その表面処理として、アルマイト加工等の金属被膜処理がなされる。この表面処理として、放射用コーティング剤を塗布してもよいし、抗菌コーティングを施してもよい。 In the heat exchange element (70) (panel body (60)) of the present embodiment, a metal film treatment such as alumite treatment is performed as the surface treatment thereof. As this surface treatment, a radioactive coating agent may be applied or an antibacterial coating may be applied.

熱交換エレメント(70)は、上下に縦長の平板状の板部(71)と、該板部(71)の前面(71a)に設けられる複数の突起部(前側突起部(72))と、該板部(71)の後面(71b)に設けられる複数の突起部(後側突起部(73))と、板部(71)の幅方向の両端にそれぞれ設けられる連結部(74)とを備えている。本実施形態のパネル本体(60)では、複数の板部(71)が幅方向に連結されることで、1つの平板状の平板部(63)が構成される。つまり、パネル本体(60)の平板部(63)は、複数の板部(71)に分割可能に構成される。 The heat exchange element (70) includes a vertically long flat plate portion (71), a plurality of protrusions (front protrusions (72)) provided on the front surface (71a) of the plate portion (71), and the heat exchange element (70). A plurality of protrusions (rear protrusions (73)) provided on the rear surface (71b) of the plate portion (71) and connecting portions (74) provided at both ends of the plate portion (71) in the width direction are provided. I have. In the panel main body (60) of the present embodiment, a plurality of plate portions (71) are connected in the width direction to form one flat plate portion (63). That is, the flat plate portion (63) of the panel main body (60) is configured to be divisible into a plurality of plate portions (71).

板部(71)(平板部(63))には、複数の貫通孔(64)が上下方向に貫通して形成される。貫通孔(64)は、平板部(63)の幅方向に等間隔を置いて配列される。貫通孔(64)には、伝熱管(53)が挿通される。 A plurality of through holes (64) are formed through the plate portion (71) (flat plate portion (63)) in the vertical direction. The through holes (64) are arranged at equal intervals in the width direction of the flat plate portion (63). A heat transfer tube (53) is inserted through the through hole (64).

板部(71)(平板部(63))の前面(71a)には、複数の前側突起部(72)が形成される。平板部(63)ないし板部(71)の後面(71b)には、複数の後側突起部(73)が形成される。つまり、熱交換エレメント(70)では、その厚さ方向の両側の面(71a,71b)にそれぞれ複数(2つ以上)の突起部(72,73)が設けられる。 A plurality of front protrusions (72) are formed on the front surface (71a) of the plate portion (71) (flat plate portion (63)). A plurality of rear protrusions (73) are formed on the rear surface (71b) of the flat plate portion (63) to the plate portion (71). That is, in the heat exchange element (70), a plurality of (two or more) protrusions (72,73) are provided on both side surfaces (71a, 71b) in the thickness direction.

各突起部(72,73)は、横断面が矩形形状となる略板状に形成される。各突起部(72,73)は、上下方向に延びている。前側突起部(72)は、伝熱管(53)ないし貫通孔(64)と平板部(63)の厚さ方向に重なる位置に設けられる。後側突起部(73)は、伝熱管(53)ないし貫通孔(64)と平板部(63)の厚さ方向に重なる位置に設けられる。つまり、本実施形態では、前側突起部(72)と後側突起部(73)とが平板部(63)の厚さ方向に重なっている。この構成により、前側突起部(72)、後側突起部(73)、及び板部(71)が、全体として略十字形状をなしている。 Each protrusion (72,73) is formed in a substantially plate shape having a rectangular cross section. Each protrusion (72,73) extends in the vertical direction. The front protrusion (72) is provided at a position where the heat transfer tube (53) or the through hole (64) and the flat plate portion (63) overlap each other in the thickness direction. The rear protrusion (73) is provided at a position where the heat transfer tube (53) or the through hole (64) and the flat plate portion (63) overlap each other in the thickness direction. That is, in the present embodiment, the front protrusion (72) and the rear protrusion (73) overlap each other in the thickness direction of the flat plate portion (63). With this configuration, the front protrusion (72), the rear protrusion (73), and the plate (71) have a substantially cross shape as a whole.

-運転動作-
実施形態に係る空気調和装置(10)の運転動作について図1を参照しながら説明する。空気調和装置(10)は、暖房運転と冷房運転とを切り換えて行う。
-Driving operation-
The operating operation of the air conditioner (10) according to the embodiment will be described with reference to FIG. The air conditioner (10) switches between heating operation and cooling operation.

〈暖房運転〉
暖房運転では、四方切換弁(24)が図1の破線で示す状態となる。圧縮機(21)で圧縮された冷媒は、室内ユニット(30)と輻射パネル(40)とに送られる。
<Heating operation>
In the heating operation, the four-way switching valve (24) is in the state shown by the broken line in FIG. The refrigerant compressed by the compressor (21) is sent to the indoor unit (30) and the radiation panel (40).

室内ユニット(30)では、冷媒が室外熱交換器(22)で放熱(凝縮)する。冷媒によって加熱された空気は、室内ファン(33)によって室内空間へ供給される。 In the indoor unit (30), the refrigerant dissipates (condenses) in the outdoor heat exchanger (22). The air heated by the refrigerant is supplied to the indoor space by the indoor fan (33).

輻射パネル(40)では、冷媒がパネル本体(60)の伝熱管(53)を流れる。この結果、伝熱管(53)の冷媒の熱は、伝熱部材(70A)を伝わり、室内空間へ放出される。 In the radiant panel (40), the refrigerant flows through the heat transfer tube (53) of the panel body (60). As a result, the heat of the refrigerant in the heat transfer tube (53) is transmitted through the heat transfer member (70A) and released into the indoor space.

室内ユニット(30)及び輻射パネル(40)でそれぞれ放熱した冷媒は、室外膨張弁(23)で減圧された後、室外熱交換器(22)で蒸発する。蒸発した冷媒は、圧縮機(21)で再び圧縮される。 The refrigerant radiated by the indoor unit (30) and the radiant panel (40) are decompressed by the outdoor expansion valve (23) and then evaporated by the outdoor heat exchanger (22). The evaporated refrigerant is compressed again by the compressor (21).

〈冷房運転〉
冷房運転では、四方切換弁(24)が図1の実線で示す状態となる。圧縮機(21)で圧縮された冷媒は、室外熱交換器(22)で放熱(凝縮)する。室外熱交換器(22)で放熱した冷媒は、室内ユニット(30)と輻射パネル(40)とに送られる。
<Cooling operation>
In the cooling operation, the four-way switching valve (24) is in the state shown by the solid line in FIG. The refrigerant compressed by the compressor (21) is radiated (condensed) by the outdoor heat exchanger (22). The refrigerant radiated by the outdoor heat exchanger (22) is sent to the indoor unit (30) and the radiant panel (40).

室内ユニット(30)では、冷媒が室内膨張弁(32)で減圧された後、室内熱交換器(31)を流れる。室内ユニット(30)では、冷媒が室内熱交換器(31)で蒸発する。冷媒によって冷却された空気は、室内ファン(33)によって室内空間へ供給される。 In the indoor unit (30), the refrigerant is decompressed by the indoor expansion valve (32) and then flows through the indoor heat exchanger (31). In the indoor unit (30), the refrigerant evaporates in the indoor heat exchanger (31). The air cooled by the refrigerant is supplied to the indoor space by the indoor fan (33).

輻射パネル(40)では、冷媒が輻射膨張弁(50)で減圧された後、伝熱管(53)を流れる。この結果、伝熱部材(70A)の周囲の空気が冷却される。 In the radiant panel (40), the refrigerant is decompressed by the radiant expansion valve (50) and then flows through the heat transfer tube (53). As a result, the air around the heat transfer member (70A) is cooled.

室内ユニット(30)及び輻射パネル(40)でそれぞれ蒸発した冷媒は、圧縮機(21)で再び圧縮される。
〈肉抜き孔〉
図4に示すように、伝熱部材(70A)には、複数の肉抜き孔(81,82,83,84)が形成される。これらの肉抜き孔(81,82,83,84)は、伝熱部材(70A)を貫通孔(64)に沿う方向に貫通している。つまり、肉抜き孔(81,82,83,84)は、伝熱部材(70A)の上端と下端に亘るように上下方向に延びている。これらの肉抜き孔(81,82,83,84)は、貫通孔(64)の周囲に、該貫通孔(64)に隣接するように配置される。
The refrigerant evaporated in the indoor unit (30) and the radiation panel (40) is compressed again in the compressor (21).
<Lightening hole>
As shown in FIG. 4, a plurality of lightening holes (81,82,83,84) are formed in the heat transfer member (70A). These lightening holes (81,82,83,84) penetrate the heat transfer member (70A) in the direction along the through holes (64). That is, the lightening holes (81,82,83,84) extend in the vertical direction so as to extend over the upper end and the lower end of the heat transfer member (70A). These lightening holes (81,82,83,84) are arranged around the through hole (64) so as to be adjacent to the through hole (64).

平板部(63)には、第1肉抜き孔(81)及び第2肉抜き孔(82)が形成される。第1肉抜き孔(81)は、貫通孔(64)を基準として平板部(63)の一方の側端側(左側)に形成される。第2肉抜き孔(82)は、貫通孔(64)を基準として平板部(63)の他方の側端側(右側)に形成される。第1肉抜き孔(81)及び第2肉抜き孔(82)は、平板部(63)に沿う方向に延びる長方形の横断面形状を有する。 A first lightening hole (81) and a second lightening hole (82) are formed in the flat plate portion (63). The first lightening hole (81) is formed on one side end side (left side) of the flat plate portion (63) with reference to the through hole (64). The second lightening hole (82) is formed on the other side end side (right side) of the flat plate portion (63) with reference to the through hole (64). The first lightening hole (81) and the second lightening hole (82) have a rectangular cross-sectional shape extending in a direction along the flat plate portion (63).

前側突起部(72)には、第3肉抜き孔(83)が形成される。第3肉抜き孔(83)は、貫通孔(64)の前側に形成される。第3肉抜き孔(83)は、前側突起部(72)に沿って前後に延びる長方形の横断面形状を有する。 A third lightening hole (83) is formed in the front protrusion (72). The third lightening hole (83) is formed on the front side of the through hole (64). The third lightening hole (83) has a rectangular cross-sectional shape extending back and forth along the front protrusion (72).

後側突起部(73)には、第4肉抜き孔(84)が形成される。第4肉抜き孔(84)は、貫通孔(64)の後側に形成される。第4肉抜き孔(84)は、後側突起部(73)に沿って前後に延びる長方形の横断面形状を有する。 A fourth lightening hole (84) is formed in the rear protrusion (73). The fourth lightening hole (84) is formed behind the through hole (64). The fourth lightening hole (84) has a rectangular cross-sectional shape extending back and forth along the posterior protrusion (73).

以上のように、伝熱部材(70A)に肉抜き孔(81,82,83,84)を形成することで、伝熱部材(70A)の軽量化が図られる。 As described above, by forming the lightening holes (81,82,83,84) in the heat transfer member (70A), the weight of the heat transfer member (70A) can be reduced.

〈切り欠き〉
図4に示すように、伝熱部材(70A)には、貫通孔(64)の内壁(65)に切り欠き(C)が形成される。切り欠き(C)は、貫通孔(64)と肉抜き孔(81,82,83,84)とを連通させるスリットである。本実施形態では、各貫通孔(64)の各内壁(65)に1つずつ切り欠き(C)が形成される。
<Notch>
As shown in FIG. 4, in the heat transfer member (70A), a notch (C) is formed in the inner wall (65) of the through hole (64). The notch (C) is a slit that allows the through hole (64) and the lightening hole (81,82,83,84) to communicate with each other. In this embodiment, one notch (C) is formed in each inner wall (65) of each through hole (64).

切り欠き(C)は、伝熱管(53)に沿って伝熱部材(70A)の両端(上端及び下端)に亘って延びている。切り欠き(C)は、貫通孔(64)や肉抜き孔(81,82,83,84)と同様、押し出し成型によって形成される。 The notch (C) extends along the heat transfer tube (53) across both ends (upper and lower ends) of the heat transfer member (70A). The notch (C) is formed by extrusion molding, similar to the through hole (64) and the lightening hole (81,82,83,84).

〈拡管作業〉
輻射パネル(40)の製造方法では、伝熱部材(70A)の内部で伝熱管(53)の管径を拡げる拡管作業が行われる。この拡管作業について説明する。
<Pipe expansion work>
In the method of manufacturing the radiant panel (40), the tube expansion work for expanding the diameter of the heat transfer tube (53) is performed inside the heat transfer member (70A). This pipe expansion work will be described.

まず、押し出し成型により得た伝熱部材(70A)の貫通孔(64)に伝熱管(53)を挿通する。次いで、伝熱管(53)の内部に拡管用の治具を挿入し、伝熱管(53)の管径を拡げていく。本実施形態の伝熱部材(70A)では、貫通孔(64)の周囲の周壁(68)に切り欠き(C)(スリット)が形成される。このため、拡管時には、周壁(68)を径方向外方へ変形(弾性変形)させ易くなる。貫通孔(64)の周壁(68)が径方向外方へ弾性変形することで、伝熱管(53)の管径が更に拡大する。次いで、貫通孔(64)から治具を抜き出していくと、貫通孔(64)の周壁(68)が、その反力により伝熱管(53)側に収縮していく。この結果、図4に示すように、伝熱部材(70A)(周壁(68))と伝熱管(53)とが、強く、あるいは密に接触する。これにより、伝熱部材(70A)と伝熱管(53)の熱抵抗が小さくなる。 First, the heat transfer tube (53) is inserted into the through hole (64) of the heat transfer member (70A) obtained by extrusion molding. Next, a jig for expanding the tube is inserted inside the heat transfer tube (53) to expand the diameter of the heat transfer tube (53). In the heat transfer member (70A) of the present embodiment, a notch (C) (slit) is formed in the peripheral wall (68) around the through hole (64). Therefore, when the pipe is expanded, the peripheral wall (68) is easily deformed (elastically deformed) outward in the radial direction. The peripheral wall (68) of the through hole (64) is elastically deformed outward in the radial direction, so that the diameter of the heat transfer tube (53) is further expanded. Next, when the jig is pulled out from the through hole (64), the peripheral wall (68) of the through hole (64) contracts toward the heat transfer tube (53) due to the reaction force. As a result, as shown in FIG. 4, the heat transfer member (70A) (peripheral wall (68)) and the heat transfer tube (53) come into strong or close contact with each other. As a result, the thermal resistance of the heat transfer member (70A) and the heat transfer tube (53) becomes small.

-実施形態の効果-
上記実施形態では、伝熱部材(70A)の貫通孔(64)の内壁(65)に切り欠き(C)が形成される。このため、伝熱管(53)の拡管時において、貫通孔(64)の周囲の周壁(68)を容易且つ確実に弾性変形させることができる。貫通孔(64)の周壁(68)の変形量が小さくなると、伝熱管(53)の管径の拡大量も小さくなり、伝熱部材(70A)と伝熱管(53)を強く、あるいは密に接触させることができない。これに対し、本実施形態では、周壁(68)を伝熱管(53)とともに確実に拡げることができ、周壁(68)の反力を十分に得ることができる。従って、伝熱部材(70A)と伝熱管(53)を強く、あるいは密に接触させることができ、両者の熱抵抗を確実に低減できる。この結果、輻射パネル(40)での熱ロスを低減でき、ひいては暖房性能や冷房性能を向上できる。
-Effect of embodiment-
In the above embodiment, a notch (C) is formed in the inner wall (65) of the through hole (64) of the heat transfer member (70A). Therefore, when the heat transfer tube (53) is expanded, the peripheral wall (68) around the through hole (64) can be easily and surely elastically deformed. When the amount of deformation of the peripheral wall (68) of the through hole (64) becomes small, the amount of expansion of the diameter of the heat transfer tube (53) also becomes small, and the heat transfer member (70A) and the heat transfer tube (53) become stronger or denser. Cannot be contacted. On the other hand, in the present embodiment, the peripheral wall (68) can be reliably expanded together with the heat transfer tube (53), and the reaction force of the peripheral wall (68) can be sufficiently obtained. Therefore, the heat transfer member (70A) and the heat transfer tube (53) can be brought into strong or close contact with each other, and the thermal resistance of both can be reliably reduced. As a result, the heat loss in the radiant panel (40) can be reduced, and the heating performance and the cooling performance can be improved.

上記実施形態では、切り欠き(C)が伝熱部材(70A)と肉抜き孔(81,82,83,84)とを連通させるため、貫通孔(64)の周壁(68)の一部が切り欠き(C)によって分断される。これにより、拡管時における周壁(68)の弾性変形を更に促進できる。更に、伝熱部材(70A)に肉抜き孔(81,82,83,84)を形成することで、伝熱部材(70A)の軽量化を図ることができる。 In the above embodiment, since the notch (C) communicates the heat transfer member (70A) and the lightening hole (81,82,83,84), a part of the peripheral wall (68) of the through hole (64) is formed. It is divided by the notch (C). As a result, the elastic deformation of the peripheral wall (68) at the time of tube expansion can be further promoted. Further, by forming the lightening holes (81,82,83,84) in the heat transfer member (70A), the weight of the heat transfer member (70A) can be reduced.

上記実施形態では、切り欠き(C)が、伝熱管(53)に沿って伝熱部材(70A)の両端に亘って延びている。このため、拡管作業により、周壁(68)の両端(上端及び下端)までの全域を、伝熱管(53)と強く、あるいは密に接触させることができる。 In the above embodiment, the notch (C) extends along the heat transfer tube (53) across both ends of the heat transfer member (70A). Therefore, by the tube expansion work, the entire area up to both ends (upper end and lower end) of the peripheral wall (68) can be brought into strong or close contact with the heat transfer tube (53).

〈変形例1〉
図5に示す変形例1では、切り欠き(C)が、貫通孔(64)に連通する一方、肉抜き孔(81,82,83,84)には連通していない。つまり、切り欠き(C)は、貫通孔(64)の内壁(65)に形成される溝を構成している。このように貫通孔(64)の内壁(65)に切り欠き(C)(溝)を形成することで、内壁(65)の弾性変形が促進される。このため、拡管作業において、伝熱管(53)の管径を確実に拡大でき、伝熱管(53)と伝熱管(53)の熱抵抗を低減できる。
<Modification example 1>
In the first modification shown in FIG. 5, the notch (C) communicates with the through hole (64), but does not communicate with the lightening hole (81,82,83,84). That is, the notch (C) constitutes a groove formed in the inner wall (65) of the through hole (64). By forming the notch (C) (groove) in the inner wall (65) of the through hole (64) in this way, the elastic deformation of the inner wall (65) is promoted. Therefore, in the tube expansion work, the tube diameter of the heat transfer tube (53) can be surely increased, and the thermal resistance of the heat transfer tube (53) and the heat transfer tube (53) can be reduced.

〈変形例2〉
図6に示す変形例2の輻射パネル(40)は、切り欠き(C)の内部と伝熱部材(70A)とを遮断する封止部材(90)を備えている。例えば封止部材(90)は、伝熱部材(70A)の上端と下端とにそれぞれ設けられる。封止部材(90)は、切り欠き(C)、第1肉抜き孔(81)、及び第2肉抜き孔(82)の蓋として機能している。これにより、伝熱部材(70A)の周囲が切り欠き(C)の内部に侵入することを抑制でき、切り欠き(C)の内部での結露の発生を抑制できる。
<Modification 2>
The radiation panel (40) of the second modification shown in FIG. 6 includes a sealing member (90) that shields the inside of the notch (C) from the heat transfer member (70A). For example, the sealing member (90) is provided at the upper end and the lower end of the heat transfer member (70A), respectively. The sealing member (90) functions as a lid for the notch (C), the first lightening hole (81), and the second lightening hole (82). As a result, it is possible to prevent the periphery of the heat transfer member (70A) from invading the inside of the notch (C), and it is possible to suppress the occurrence of dew condensation inside the notch (C).

なお、封止部材(90)は、例えば切り欠き(C)の内部に設けられる断熱部材であってもよい。この断熱部材は、切り欠き(C)の両端のみに設けてもよいし、切り欠き(C)の内部の全体に設けてもよい。例えば上述した伝熱管(53)の拡管作業の後、切り欠き(C)の内部に発泡剤を注入し、断熱部材(発泡材料)を得るとよい。これにより、切り欠き(C)の内部への空気の侵入を確実に防止でき、切り欠き(C)の内部での結露の発生を抑制できる。 The sealing member (90) may be, for example, a heat insulating member provided inside the notch (C). This heat insulating member may be provided only at both ends of the notch (C), or may be provided over the entire inside of the notch (C). For example, after the above-mentioned expansion work of the heat transfer tube (53), a foaming agent may be injected into the notch (C) to obtain a heat insulating member (foam material). As a result, it is possible to reliably prevent air from entering the inside of the notch (C), and it is possible to suppress the occurrence of dew condensation inside the notch (C).

《その他の実施形態》
上記実施形態や、各変形例においては、以下のような構成としてもよい。
<< Other Embodiments >>
In the above-described embodiment and each modification, the configuration may be as follows.

上記実施形態では、貫通孔(64)の1つの内壁(65)に1つの切り欠き(C)を形成している。しかし、1つの内壁(65)の2つ以上の切り欠き(C)を形成してもよい。全ての貫通孔(64)のうちの一部の貫通孔(64)の内壁(65)だけに切り欠き(C)を形成してもよい。 In the above embodiment, one notch (C) is formed in one inner wall (65) of the through hole (64). However, two or more notches (C) of one inner wall (65) may be formed. A notch (C) may be formed only in the inner wall (65) of a part of the through holes (64) out of all the through holes (64).

切り欠き(C)は、他の肉抜き孔(第2、第3、及び第4肉抜き孔(82,83,84))と、貫通孔(64)とを連通させてもよい。 The notch (C) may allow the other lightening holes (second, third, and fourth lightening holes (82,83,84)) to communicate with the through holes (64).

切り欠き(C)は、必ずしも伝熱部材(70A)の両端に亘って延びていなくてもよい。例えば切り欠き(C)は、伝熱部材(70A)の端部やや手前まで延びていてもよい。 The notch (C) does not necessarily have to extend across both ends of the heat transfer member (70A). For example, the notch (C) may extend slightly in front of the end of the heat transfer member (70A).

実施形態のパネル本体(60)は、平板部(63)から複数の突起部(72,73)が突出する構造である。しかし、パネル本体(60)は、複数の縦長の伝熱部材を水平方向に配列した構造であってもよい。この構成においても、各伝熱部材にそれぞれ貫通孔を形成し、貫通孔の内壁に切り欠きを形成できる。 The panel body (60) of the embodiment has a structure in which a plurality of protrusions (72,73) protrude from the flat plate portion (63). However, the panel body (60) may have a structure in which a plurality of vertically long heat transfer members are arranged in the horizontal direction. Also in this configuration, a through hole can be formed in each heat transfer member, and a notch can be formed in the inner wall of the through hole.

空気調和装置(10)の室内ユニット(30)と輻射パネル(40)とを直列に接続した構成としてもよい。空気調和装置(10)の室内ユニット(30)を省略した構成としてもよい。 The indoor unit (30) of the air conditioner (10) and the radiation panel (40) may be connected in series. The indoor unit (30) of the air conditioner (10) may be omitted.

以上、実施形態および変形例を説明したが、特許請求の範囲の趣旨および範囲から逸脱することなく、形態や詳細の多様な変更が可能なことが理解されるであろう。また、以上の実施形態および変形例は、本開示の対象の機能を損なわない限り、適宜組み合わせたり、置換したりしてもよい。 Although the embodiments and modifications have been described above, it will be understood that various modifications of the forms and details are possible without departing from the spirit and scope of the claims. Further, the above embodiments and modifications may be appropriately combined or replaced as long as the functions of the subject of the present disclosure are not impaired.

以上説明したように、本開示は、輻射パネル及び空気調和装置について有用である。 As described above, the present disclosure is useful for radiation panels and air conditioners.

10 空気調和装置
40 輻射パネル
53 伝熱管
64 貫通孔
65 内壁
70A 伝熱部材
81 第1肉抜き孔
82 第2肉抜き孔
83 第3肉抜き孔
84 第4肉抜き孔
90 封止部材
10 Air conditioner 40 Radiation panel 53 Heat transfer tube 64 Through hole 65 Inner wall 70A Heat transfer member 81 1st lightening hole 82 2nd lightening hole 83 3rd lightening hole 84 4th lightening hole 90 Sealing member

Claims (1)

貫通孔(64)が形成される伝熱部材(70A)と、
前記貫通孔(64)に挿通される伝熱管(53)とを備えた輻射パネルの製造方法であって、
前記貫通孔(64)の周囲の周壁(68)に切り欠き(C)が形成された前記伝熱部材(70A)の該貫通孔(64)に前記伝熱管(53)を挿通し、前記伝熱管(53)の管径を治具によって拡げて前記周壁(68)を径方向外方へ弾性変形させた後、該貫通孔(64)から該治具を抜き出す
ことを特徴とする輻射パネルの製造方法。
A heat transfer member (70A) on which a through hole (64) is formed,
A method for manufacturing a radiant panel provided with a heat transfer tube (53) inserted through the through hole (64).
The heat transfer tube (53) is inserted through the through hole (64) of the heat transfer member (70A) having a notch (C) formed in the peripheral wall (68) around the through hole (64). The diameter of the heat tube (53) is expanded by a jig to elastically deform the peripheral wall (68) outward in the radial direction, and then the jig is pulled out from the through hole (64).
A method for manufacturing a radiant panel.
JP2018049292A 2018-03-16 2018-03-16 Radiation panel manufacturing method Active JP7089158B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012017967A (en) 2010-06-09 2012-01-26 Best-Thermal Co Ltd Air conditioning device
JP2012154559A (en) 2011-01-26 2012-08-16 Hitachi Appliances Inc Air conditioner
WO2017149692A1 (en) 2016-03-02 2017-09-08 株式会社エコファクトリー Heating element cover component, heating elelment cover, radiation cooling and heating equipment, and air-conditioning system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012017967A (en) 2010-06-09 2012-01-26 Best-Thermal Co Ltd Air conditioning device
JP2012154559A (en) 2011-01-26 2012-08-16 Hitachi Appliances Inc Air conditioner
WO2017149692A1 (en) 2016-03-02 2017-09-08 株式会社エコファクトリー Heating element cover component, heating elelment cover, radiation cooling and heating equipment, and air-conditioning system

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