TWI342944B

TWI342944B -

Info

Publication number: TWI342944B
Application number: TW096140621A
Authority: TW
Inventors: Satoshi Kawano; Shinya Matsuoka; Osamu Tanaka
Original assignee: Daikin Ind Ltd
Priority date: 2006-10-30
Filing date: 2007-10-29
Publication date: 2011-06-01
Also published as: EP2078905B1; KR100989460B1; TW200827637A; WO2008053752A1; JP2008111589A; AU2007315521B2; RU2395044C1; CN101529169B; EP2078905A1; CN101529169A; EP2078905A4; ES2574090T3; JP4079184B1; US20100319376A1; BRPI0716309A2; AU2007315521A1; KR20090089298A

Description

1342944 九、發明說明：【發明所屬之技術領域】本發明係關於經由聯絡配管連接在利用機組的冷凍裝置的熱源機組以及包括該熱源機組的冷凍裝置。【先前技術】迄今，已知有包括壓縮機、熱源側熱交換器的冷凍裝置的熱源機組。熱源機組與經由聯絡配管所連接的利用機組1342944. EMBODIMENT OF THE INVENTION: TECHNICAL FIELD The present invention relates to a heat source unit connected to a refrigeration unit using a unit via a communication pipe, and a refrigeration system including the heat source unit. [Prior Art] Heretofore, a heat source unit including a compressor and a heat source side heat exchanger has been known. Heat source unit and utilization unit connected via communication piping

一起構成冷凍裝置。此種熱源機組記載在專利文獻丨及專利文獻2中。具體而言，專利文獻1中作為該種熱源機組公開了空調機的室外機組。該室外機組中設置有一個氣側連接口與一個液側連接口。氣側連接口連接在分別連接在壓縮機的吐出側與吸入側的四路換向閥上，液側連接口連接在室外熱交換器的液側端口。該空調機係能夠藉由切換四路換向閥來切換作為運轉狀態的冷氣運轉與暖氣運轉。在專利文獻2的圖3中記載了設置有兩個氣側連接口與一個液側連接口的室外機組。在該室外機組中，一個氣侧連接口一直經由吐出線連接在壓縮機的吐出侧，另一個氣側連接口一直經由吸入線連接在壓縮機的吸入側。而且，液側連接口一直連接在室外熱交換器的液側。室外熱交換器的氣側端口連接在分別與壓縮機的吐出側與吸入側連接的四路換向閥。在專利文獻2 a己載有應用了該室外機組的空調裝置。該空調裝置包括複數之室内機組，各個室内機組分別包括用 126149.doc 1342944Together constitute a freezer. Such a heat source unit is described in Patent Document 专 and Patent Document 2. Specifically, in Patent Document 1, an outdoor unit of an air conditioner is disclosed as such a heat source unit. The outdoor unit is provided with a gas side connection port and a liquid side connection port. The gas side connection port is connected to a four-way directional control valve respectively connected to the discharge side and the suction side of the compressor, and the liquid side connection port is connected to the liquid side port of the outdoor heat exchanger. In the air conditioner, the air-conditioning operation and the heating operation in the operating state can be switched by switching the four-way switching valve. In Fig. 3 of Patent Document 2, an outdoor unit provided with two gas side connecting ports and one liquid side connecting port is described. In the outdoor unit, one gas side connection port is always connected to the discharge side of the compressor via the discharge line, and the other gas side connection port is always connected to the suction side of the compressor via the suction line. Moreover, the liquid side connection port is always connected to the liquid side of the outdoor heat exchanger. The gas side port of the outdoor heat exchanger is connected to a four-way directional control valve that is connected to the discharge side and the suction side of the compressor, respectively. Patent Document 2a has an air conditioner to which the outdoor unit is applied. The air conditioning unit includes a plurality of indoor units, each of which includes 126149.doc 1342944

的氣管道與吸入線聯通的狀態進行切換。在該空調裝置中，若BS機組使室内機組的氣管道與室外機組的吐出線聯通，則進行室内機組的利用側熱交換器成為凝結器的暖氣運轉；若BS機組使室内機組的氣管道與室外機組的吸入線聯通，則進行室内機組的利用側熱交換器成為蒸發器的冷氣運轉。該空調裝置是一種能夠對每一個室内機組有選擇地進行作為運轉狀態的冷氣運轉還是暖氣運轉，即所謂的自由冷暖氣空調裝置。The gas pipe is switched to the state of the suction line. In the air conditioner, when the BS unit connects the air line of the indoor unit to the discharge line of the outdoor unit, the use side heat exchanger of the indoor unit becomes a heating operation of the condenser; if the BS unit makes the air line of the indoor unit When the suction line of the outdoor unit is connected, the use side heat exchanger of the indoor unit becomes the air-cooling operation of the evaporator. This air conditioner is a so-called free air-conditioning apparatus that can selectively perform a cooling operation or a heating operation as an operation state for each indoor unit.

來對室内機組的運轉狀態進行切換的BS機組。該Bs機組對使室内機組的氣管道與吐出線聯通的狀態和使室内機組冷凍裝置中，既有專利文獻丨中所記載之由設置在熱源機組的切換機構（例如四路換向閥）對利用機組的運轉狀態進行切換的冷凍裝置，也有專利文獻2中所記載之由對每個利用機組設置的機組中所收納的切換機構來對利用機組的運轉狀態進行切換的冷;東裝置。因為專利文獻！中的熱源機組只有—個氣側連接口，所以對後者的冷;東裝置不適用。因為專利文獻2中的熱源機組，在熱源側迴路中未设置用來對利用機組的運轉狀態進行切換的切換機構所以對前者的冷凍裝置不適用。若要構成對前者的冷凍裝置和後者的冷凍裝置都適用的 ’“、源機且，則成為例如圖丨3所示的構成。在該圖1 3的熱源機組（10)的熱源側迴路（12)中，設置有兩個氣側連接口 (32’33)和一個液側連接口（34)。一個氣側連接口（32) 一直 "、'、..機（14 )的吸入側聯通，另一個氣側連接口（ 3 3)有選 126149.doc 1342944 擇地與麼縮機（14)的吐出側與吸入側中之一個聯通。而且，液側連接口（34)—直與熱源側熱交換器（15)的液側聯通。熱源側熱交換器（15)的氣側有選擇地與壓縮機（〗4)的吐出側和吸入側中之任一側聯通。若象圖13(A)所示將利用機組（7)連接到該熱源機組（1〇) ’則構成前者的冷凍裝置 (5);若象圖13(B)所示將利用機組（7)連接到該熱源機組 (1 〇)，則構成後者的冷凍裝置（5)。此處，在應用了該熱源機組的冷凍裝置中，在例如利用機組的台數很多之情形等利用機組側需要較大的冷卻能力或者加熱自t*力之情形，有時，僅依賴熱源機組的熱源側熱父換器不能為利用機組的利用側熱交換器確保充分的熱交換量。在如此之情形，不能進行適當的冷凍循環，性能係數(COP)變得比較小。於是’藉由將收納輔助熱交換器的輔助機組連接到冷媒迴路上，便能夠解決這樣的問題。在矛J用機組（7，7，）側所需要的加熱能力很大之情形，如圖 14所示，輔助機組（50)的連接，係保證在進行加熱運轉時輔助熱交換器（52)與熱源側熱交換器（15)一起成為蒸發器；在利用機組（7, 7,…）側所需要的冷卻能力很大的情形，如圖15所示，輔助機組（5〇)的連接，係保證在進行冷卻運轉時輔助熱交換器（52)與熱源側熱交換器（15)一起成為凝結器。 [專利文獻1]曰本公開特許公報特開2006 078087號公報 [專利文獻2]曰本公開特許公報特開平η·241844號公報【發明内容】 126149.doc 1342944 [發明欲解決之問題]A BS unit that switches the operating state of the indoor unit. The Bs unit is connected to the discharge line of the indoor unit and the discharge unit of the indoor unit, and the switching unit (for example, the four-way reversing valve) provided in the heat source unit is described in the patent document. In the refrigerating apparatus that is switched by the operating state of the unit, there is also a cold apparatus that switches the operating state of the unit by the switching mechanism stored in each unit provided in the unit. Because of the patent literature! The heat source unit in the middle has only one gas side connection port, so the latter is cold; the east device is not applicable. In the heat source unit of Patent Document 2, the switching mechanism for switching the operating state of the unit is not provided in the heat source side circuit, and the former is not applicable to the former. The configuration of the source device is the same as that of the "freezer" of the former and the refrigeration system of the latter. For example, the configuration shown in Fig. 3 is shown. The heat source side circuit of the heat source unit (10) of Fig. 13 ( In 12), there are two gas side connection ports (32'33) and one liquid side connection port (34). One gas side connection port (32) is always on the suction side of the ",", .. machine (14) Unicom, another gas side connection (3 3) is selected 126149.doc 1342944 to connect with one of the discharge side and the suction side of the retractor (14). Moreover, the liquid side connection (34) - straight The liquid side of the heat source side heat exchanger (15) is connected. The gas side of the heat source side heat exchanger (15) is selectively connected to either the discharge side and the suction side of the compressor (Fig. 4). 13(A) shows that the unit (7) is connected to the heat source unit (1〇), which constitutes the former refrigeration unit (5); if the unit (7) is connected to the unit as shown in Fig. 13(B) The heat source unit (1 〇) constitutes the latter refrigeration unit (5). Here, in the refrigeration system to which the heat source unit is applied, the number of units used, for example, is very large. In the case of the case where the unit side requires a large cooling capacity or a heating from the t* force, sometimes the heat source side heat exchanger that relies only on the heat source unit cannot ensure sufficient heat exchange for the utilization side heat exchanger of the unit. In such a case, an appropriate refrigeration cycle cannot be performed, and the coefficient of performance (COP) becomes relatively small. Thus, the problem can be solved by connecting the auxiliary unit housing the auxiliary heat exchanger to the refrigerant circuit. In the case where the heating capacity required on the side of the spear J unit (7, 7,) is large, as shown in Fig. 14, the connection of the auxiliary unit (50) is to ensure the auxiliary heat exchanger (52) during the heating operation. Together with the heat source side heat exchanger (15), it becomes an evaporator; in the case where the cooling capacity required on the side of the unit (7, 7, ...) is large, as shown in Fig. 15, the connection of the auxiliary unit (5〇), It is ensured that the auxiliary heat exchanger (52) and the heat source side heat exchanger (15) together become a condenser when the cooling operation is performed. [Patent Document 1] Japanese Laid-Open Patent Publication No. 2006-078087 [Patent Document 2] Present disclosure Xu Laid-Open Patent Publication No. 241,844 η · Publication SUMMARY OF THE INVENTION 126149.doc 1342944 [The problem to be solved by the invention]

広只到一種輔助機組的連組的冷凍裝置中將輔助機運轉上。具體而言，若對因為不能將進行冷卻運轉機組的輔助熱交換器，輔若對應於冷卻運轉設置輔運轉時已在輔助機組的輔壓縮機的吸入侧，輔助熱然而’在習知之熱源機組中無接方法來實現在應用了該熱源機組用在加熱運轉與冷卻運轉兩個應於加熱運轉設置輔助機組，則時從壓縮機吐出之冷媒供給輔助助熱交換器便不能成為凝結器。助機組，則因為不能將進行加熱助熱交換器中蒸發的冷媒引導至交換器便不能成為蒸發器。辅助 The auxiliary machine is operated only in the connected refrigeration unit of an auxiliary unit. Specifically, if the auxiliary heat exchanger that cannot perform the cooling operation is supplemented to the suction side of the auxiliary compressor of the auxiliary unit when the auxiliary operation is set in the cooling operation, the auxiliary heat is used in the conventional heat source unit. In the case where the heat source unit is used for both the heating operation and the cooling operation, the auxiliary unit is installed in the heating operation, and the refrigerant supply auxiliary heat exchanger discharged from the compressor cannot be a condenser. The auxiliary unit cannot be an evaporator because the refrigerant that evaporates in the heating aid heat exchanger cannot be guided to the exchanger.

本發明係為解決前述問題而研究開發者，其目的在於：提供-種能夠適用下述任意一種冷;東裝置之熱源機組的構成’而能_應冷卻運轉與加熱運轉兩種運轉連接收納有輔助熱父換益的輔助機組。一種冷凍裝置是，利用設置在熱源機組的切換機構對利用機組的運轉狀態進行切換；另一種冷康裝置是’利用給每_個制機組設置的機組所收納的切換機構對利用機組的運轉狀態進行切換。 [解決手段] 第一樣態之發明以冷凍装置的熱源機組（丨〇)為對象，該 ·“、源機組具備連接有壓縮機（丨4)與熱源側熱交換器（I 5)的熱源側迴路（12)。該熱源機組（10)的室外迴路（12)中包栝：第1氣側連接口（31)，其成為一直與前述壓縮機（14)的吐出側聯通的第1氣管（25)的端部；第2氣側連接口（32)，其成為一直與前述壓縮機（14)的吸入側聯通的第2氣管（26)的端 I26149.doc 1342944 部；第3氣侧連接口 (33)，其成為有選擇 =與第2氣管⑽的其中之—聯通的第3 =官液側連接口洲，其成為-直與前述熱源側熱交的液側端口聯通的液管(28)的端部；第1切換機構(〗7)，用The present invention has been made in order to solve the above problems, and an object of the present invention is to provide a configuration of a heat source unit capable of applying any of the following cold and east devices, and capable of providing both cooling operation and heating operation. Auxiliary unit that assists the hot father to change benefits. A refrigerating device is configured to switch an operating state of a utilization unit by using a switching mechanism provided in a heat source unit; and another type of cold-stay device is a switching mechanism accommodated by a unit provided for each unit: Switch. [Solution] The invention of the first aspect is directed to a heat source unit (丨〇) of a refrigerating unit, and the source unit has a heat source to which a compressor (丨4) and a heat source side heat exchanger (I 5) are connected. a side circuit (12). The outdoor circuit (12) of the heat source unit (10) includes a first gas side connection port (31), which is a first air pipe that is always in communication with the discharge side of the compressor (14). The end of (25); the second gas side connection port (32), which is the end of the second air pipe (26) that is always in communication with the suction side of the compressor (14), I26149.doc 1342944; the third gas side a connection port (33) which is selectively selected to be in communication with the second air pipe (10) - a third liquid phase connection port, which becomes a liquid pipe in which the liquid side port which is in thermal communication with the heat source side is in communication End of (28); first switching mechanism (〖7), used

=前述熱源侧熱交換器(15)的氣側端口與前述壓縮機(广的吐出側聯通的狀態和使前述熱源側熱交的氣側端口與前述壓縮機（14)的吸人侧聯通的狀態；以及第^切換機構⑽，用來切換使前述第3氣管（27)與前述^ 氣管（25)聯通的狀態和使前述第3氣管（27)與前 (26)聯通的狀態. & e= the gas side port of the heat source side heat exchanger (15) is in communication with the compressor (the wide discharge side and the gas side port that heats the heat source side are in communication with the suction side of the compressor (14) a state; and a switching mechanism (10) for switching a state in which the third air pipe (27) is in communication with the air pipe (25) and a state in which the third air pipe (27) is in communication with the front (26). e

,第二樣態之發明是一種冷束裝置（5)，具傷：第】樣態所記載之冷康裝置（5)的熱源機組（1〇)以及利用機組⑺，該利用機組⑺具有從液側端口依序連接減壓機構（41)與利用侧熱交換器（4G)而構成的利用側迴路（8)。在前述熱源機組 (1〇)的熱源側迴路（12)的第3氣側連接口（33)與前述利用側迴路（8)的氣側端口連接、該熱源側迴路（12)的液側連接口 (34)與該利用側迴路（8)的液側端口連接而構成的冷媒迴路 (9)中，進行蒸氣壓縮冷凍循環。第三樣態之發明係如此，在前述第2樣態之發明中，具備輔助機組（50)，該輔助機組（5〇)具有：輔助熱交換器 (52)、一直與前述輔助熱交換器（52)的液側端口聯通的第1 連接口（56)、有選擇地與前述輔助熱交換器（52)的氣側端口聯通的第2連接口（57)及第3連接口（58)以及輔助切換機構（54)，該輔助切換機構（54)用來切換使前述輔助熱交換 126149.doc 器（52)的氣側端口與前述第2連接口（57)聯通的狀態、和使前述輔助熱交換器（52)的氣側端口與前述第3連接口（58)聯通的狀態。前述冷媒迴路（9)中，前述第丨連接口（56)連接在前述熱源側迴路（12)的液側連接口；前述第2連接口（5 7) 連接在前述熱源側迴路（12)的第1氣側連接口（3丨）；前述第 3連接口（58)連接在前述熱源側迴路（12)的第2氣側連接口 (32)。第四樣態之發明係如此，在前述第二或三樣態的發明中，具備複數前述利用機組（7);前述冷媒迴路（9)中，複數利用側迴路（8)相對熱源側迴路（12)並聯連接。第五樣態之發明係如此，在前述第四樣態之發明中，包括對前述複數利用機組（7)分別設置且具有運轉狀態切換機構（63，64)的切換機組（60)，該運轉狀態切換機構（63，用來切換使各利用機組（7)的利用側迴路（8)的氣側端口與前述第2氣側連接口（32)聯通的狀態、和使各利用機組（？）的利用側迴路（8)的氣側端口與前述第3氣側連接口（33)聯通的狀態》 -作用- 在第一樣態之發明中，熱源機組（丨〇)的熱源側迴路（丨2) 包括三個氣側連接口（31，32，33)和一個液側連接口（34)。第1氣側連接口（31)一直與壓縮機（14)的吐出側聯通；第2 氣側連接口（32)—直與壓縮機（14)的吸入侧聯通；第3氣側連接口（33)藉由第2切換機構（18)之切換被切換為與第1氣管（25)聯通的狀態和與第2氣管（26)聯通的狀態；液側連接 126149.doc 1342944The invention of the second aspect is a cold beam device (5), which has a heat source unit (1) for the cold-cold device (5) and a utilization unit (7), which has a slave unit (7). The liquid side port sequentially connects the use side circuit (8) constituted by the pressure reducing mechanism (41) and the use side heat exchanger (4G). The third gas side connection port (33) of the heat source side circuit (12) of the heat source unit (1) is connected to the gas side port of the use side circuit (8), and the liquid side of the heat source side circuit (12) is connected A vapor compression refrigeration cycle is performed in the refrigerant circuit (9) formed by the interface (34) connected to the liquid side port of the use side circuit (8). According to a third aspect of the invention, in the second aspect of the invention, the auxiliary unit (50) is provided, the auxiliary unit (5) having: an auxiliary heat exchanger (52), and the auxiliary heat exchanger a first connection port (56) in which the liquid side port is connected to (52), and a second connection port (57) and a third connection port (58) that selectively communicate with the gas side port of the auxiliary heat exchanger (52). And an auxiliary switching mechanism (54) for switching a state in which the gas side port of the auxiliary heat exchange 126149.doc (52) is in communication with the second connection port (57), and The gas side port of the auxiliary heat exchanger (52) is in communication with the third connection port (58). In the refrigerant circuit (9), the second connection port (56) is connected to the liquid side connection port of the heat source side circuit (12), and the second connection port (57) is connected to the heat source side circuit (12). The first gas side connection port (3丨); the third connection port (58) is connected to the second gas side connection port (32) of the heat source side circuit (12). According to a fourth aspect of the invention, in the second or third aspect of the invention, the plurality of utilization units (7) are provided; and in the refrigerant circuit (9), the plurality of utilization side circuits (8) are opposite to the heat source side circuit ( 12) Parallel connection. According to a fifth aspect of the invention, in the fourth aspect of the invention, the switching unit (60) provided for each of the plurality of utilization units (7) and having the operation state switching mechanism (63, 64) is included in the operation. a state switching mechanism (63) for switching between a state in which the gas side port of the use side circuit (8) of each use unit (7) is in communication with the second gas side connection port (32), and each utilization unit (?) The state in which the gas side port of the use side circuit (8) is in communication with the third gas side connection port (33)" - action - In the invention of the first aspect, the heat source side circuit of the heat source unit (丨〇) 2) Includes three gas side connection ports (31, 32, 33) and one liquid side connection port (34). The first gas side connection port (31) is always in communication with the discharge side of the compressor (14); the second gas The side connection port (32) is directly connected to the suction side of the compressor (14); the third gas side connection port (33) is switched to be connected to the first air pipe (25) by switching of the second switching mechanism (18) State and state of communication with the second air pipe (26); liquid side connection 126149.doc 1342944

口（34)—直與熱源側熱交換器（丨5)的液側端口聯通；熱源側熱交換器（15)的氣側端口藉由第】切換機構（17)之切換被切換為與壓縮機（14)之吐出側聯通的狀態和與壓縮機（14) 之吸入側聯通的狀態。換言之，該熱源機組（1〇)除了具有圖〖3所示的熱源機組（1〇)的結構外，還具有一直與壓縮機 (1 4)的吐出側聯通的第1氣側連接〇 (3 1)。熱源機組（】〇)，係能夠應用到以下任一個空調裝置（5)中，一個空調裝置 (5) ’係藉由設置在熱源機組（10)的切換機構（17)對利用機組（7)的運轉狀態進行切換，另一個空調裝置（5)係藉由給每一個利用機組（7)設置的切換機組（60)所收納的切換機構 (63, 64)對利用機組（7)的運轉狀態進行切換。The port (34) is directly connected to the liquid side port of the heat source side heat exchanger (丨5); the gas side port of the heat source side heat exchanger (15) is switched to and compressed by the switching of the first switching mechanism (17) The state in which the discharge side of the machine (14) is in communication with the suction side of the compressor (14). In other words, in addition to the structure of the heat source unit (1〇) shown in Fig. 3, the heat source unit (1〇) has a first gas side port (3) that is always in communication with the discharge side of the compressor (14). 1). The heat source unit (】〇) can be applied to any of the following air conditioning units (5), and an air conditioning unit (5) is used by the switching mechanism (17) provided to the heat source unit (10). The operation state is switched, and the other air conditioner (5) is operated by the switching mechanism (63, 64) accommodated by the switching unit (60) provided for each utilization unit (7). Switch.

第二樣態之發明中’在空調裝置（5)的冷媒迴路（9)中，熱源機組（10)的熱源側迴路（12)的第3氣側連接口（33)與利用側迴路（8)的氣側端口連接，熱源側迴路（12)的液側連接口（34)與利用側迴路（8)的液側端口連接6在該空調裝置（5) 中’在不設置後述的切換機組（60)之情形，第1切換機構 (17)與第2切換機構（18)對利用機組（7)的運轉狀態進行切換。具體而言，若第1切換機構（17)使熱源側熱交換器（15) 的氣側端口與壓縮機〇4)的吐出側聯通且第2切換機構（18) 使第3氣管（27)與第2氣管（26)聯通，則進行熱源側熱交換器（15)成為凝結器且利用側熱交換器（4〇)成為蒸發器的冷卻運轉；若第1切換機構（17)使熱源側熱交換器（15)的氣側知口與壓縮機（14)的吸入側聯通且第2切換機構（1 8)使第3 氣管（27)與第1氣管（25)聯通，則進行利用側熱交換器（4〇) 126149.doc •12· 成為凝結器且熱源側熱交換器（15)成為蒸發器的加熱運轉。第三樣態之發明中，空調裝置(5)包括輔助機組(50)。在 -助機組(50)中’ II由四路換向閥(54)之切換被切換為輔助熱交換器（52)的氣側端σ與第2連接口（57)聯通的狀態和輔助熱交換器(52)的氣側端口與第3連接口 (58)聯通的狀因此，在该第3樣態之發明的空調裝置（5)中，藉由四路換向閥（54)之切換在以下兩個狀態之間切換。即，辅助熱交換器（52)的氣側端口與連接有第2連接口（57)的第1氣側連接口（31)聯通的狀態、以及輔助熱交換器（52)的氣側端口與連接有第3連接口（58)的第2氣側連接口（32)聯通的狀態。第四樣態之發明中，空調裝置（5)包括複數利用機組 (7)。利用機組（7)中的複數利用側迴路（8)相對熱源側迴路 (12)並聯連接。各個利用機組（7)的氣側端口連接在第3氣側連接口（33)，各個利用機組（7)的液側端口連接在液側連接口（34)。第五樣態之發明中，設置在各利用機组（7)中的切換機組（60)的運轉狀態切換機構（63, 64)切換使該利用機組（？）的利用側迴路（8)的氣側端口與第2氣側連接口（32)聯通的狀態、與使該利用機組（7)的利用側迴路（8)的氣側端口與第3氣側連接口（33)聯通的狀態。若運轉狀態切換機構（63, 64)使利用側迴路（8)的氣側端口與第2氣側連接口（32)聯通’則進行該利用側迴路（8)成為蒸發器的冷卻運轉。具趙 126I49.doc • 13· 1J42944 而。已在熱源側熱交換H (15) t凝結的冷媒通過液側連接口（34)被導入利用側迴路⑻令。已㈣入到利用側迴路 ⑻中的冷媒’在㈣㈣交換器⑽）中蒸發後通過第以側連接口（32)返回壓縮機（14)的吸入側。若運轉狀態切換機構（63, 64)使利用側迴路⑻的氣側端口與第⑷則連接口 • (33)聯通，則進行該㈣側迴路⑻成為凝結器的加熱運 . 轉。具體而言，從壓縮機Ο4)吐出的冷媒通過第3氣側連接 D(33)被導入利用側迴路⑻中。被導入利用側迴路⑻中的冷媒在利用伽m換器（40)中凝結後通過液側連接口⑽ 被導入熱源側熱父換|5 (15)，在那裡蒸發後被吸入壓縮機 (14)。該第五樣態之發明中，作&又赞月中，第一樣態之發明的熱源機組 ⑽被應用到藉由給每一個利用機組⑺設置的切換機組 ()中所收、，内的切換機構（63，64)對利用機組⑺的運轉狀態進行切換的空調裝置（5)中。 [發明之效果] • 至外機組(1 〇)除了具有以下熱源機組(10)的結構外，還具有-直與壓縮機（14)的吐出側聯通的第1氣側連接口 (31)。熱源機組（10)，係能夠應用到以下任一個空調裝置 .(5)令’即，-個空調裝置⑺’係藉由設置在熱源機組⑽ • @切換機構(17)對利用機組⑺的運轉狀態進行切換，另一個空調裝置（5 )係藉由給每一個利用機組⑺設置的切換機 •、且（6〇)所收納的切換機構（63, 64)對利用機組⑺的運轉狀 =行切換。在該熱源機組⑽中，若第2切換機構（_ 3乳側連接口（33)與第1氣管（25)聯通，貝第3氣側連接口 J26I49.doc 1342944 (33)成為從壓縮機（14)吐出之壓縮後冷媒流出的閥口；液側連接口（34)成為使在熱源側熱交換器（丨5)中蒸發的凝結後的液態冷媒流入的閥口；第2氣侧連接口（32)成為壓縮機 (】4 )所及入的蒸發後冷媒流入的閥口。另一方面，若第2切換機構（18)使第3氣側連接口（33)與第2氣管（26)聯通，則液 - 側連接口（34)成為在熱源側熱交換器（15)中凝結的液態冷媒流出的閥口；第2氣側連接口（32)成為壓縮機（14)所吸入 _ 的蒸發後冷媒流入的閥口；第1氣側連接口（3丨）成為從壓縮機（14)吐出之壓縮後冷媒流出的閥口。例如，如圖5所示，若使利用側迴路（8)的氣側端口與第 3氣側連接口（33)連接且使利用側迴路（8)的液側端口與液側連接口（34)連接，同時使輔助機組（5〇)的輔助熱交換器 (52)的液側端口與液側連接口（34)連接且使輔助熱交換器 (5 2)的氣側端口有選擇地與第丨氣側連接口（ 3丨）和第2氣側連接口（32)連接，則在利用側迴路（8)使第3氣側連接口（33) % 與第1氣管（25)聯通的狀態下，進行從壓縮機（14)吐出之高虔冷媒it過第3氣側連接口（33)供纟，利用側熱交換器（4〇) 成為凝器的加熱運轉。若在該加熱運轉中將已在利用側 • 〜交換器（4G)中凝結的冷媒導人輔助熱交換器（52)，則已 • 導入的冷媒在輔助熱交換器(52)中蒸發後從第2氣側連接口 (32)流入熱源側迴路（12)並被吸人壓縮機⑽。另—方面，在第2切換機構（18)使第3氣側連接口（叫與第2氣管（⑹聯通的狀態，則進行已經在熱源側熱交換器（1 5)中凝結的液〜V媒L過液側連接口（34)供來且利用側熱交換器（4〇)成 126l49.doc 1342944 • 4蒸發器的冷卻運轉。^在該冷卻運轉中將通過第！氣側連接口 (31)從壓縮機(14)吐出的冷媒導入輔助熱交換器 (52)，則已導入的冷媒在辅助熱交換器(52)中凝結後與已在熱源側熱交換器（15)中凝結的液態冷媒一起被導入利用側熱父換(40) ^已導入利用側熱交換器（4〇)的冷媒在利用側熱交換器(40)令蒸發，蒸發後的低壓冷媒從第3氣側連 . 接口（33)流入熱源側迴路（12)並被吸入壓縮機（14)。 _ 是以，若有選擇地將輔助機組（50)的輔助熱交換器（52) 的氣側端口與第丨氣側連接口（3 1}和第2氣側連接口連接，則能夠將來自加熱運轉之際成為蒸發器的輔助熱交換器（52)的低壓氣態冷媒通過第2氣側連接口（32)導入壓縮機〇4)中；還能夠將高壓的氣態冷媒通過第丨氣側連接口（31) 導入冷卻運轉之際成為凝結器的輔助熱交換器（52)中。因此’能夠對應於冷卻運轉與加熱運轉兩種運轉來使用輔助機組（50)。換句話說，該實施形態的室外機組〇〇)，能夠 % 對應於加熱運轉與冷卻運轉兩種運轉來連接輔助^组 (50)。 ’ 在前述第三樣態之發明中，輔助熱交換器（52)的氣側端口有選擇地連接在第1氣側連接口（3 1)與第二氣側連接口 • (32) ^因此，如上所述，在進行加熱運轉之際能夠將來自成為蒸發器的輔助熱交換器（52)的低壓氣態冷媒通過第二氣側連接口（32)導入壓縮機（14);在進行冷卻運轉之際能夠將高壓氣態冷媒通過第1氣側連接口（ 3 !)導入成為凝結器的輔助熱交換器（52)中。能夠將該第三樣態之發明的輔助 I26149.doc 16 機組（50)連接到空調裝置（5)上，使得：無論是在進行冷卻運轉’還是在進行加熱運轉都能夠進行用辅助熱交換器 (52)來補償熱源側熱交換器（15)中的辜交換量的動作。【實施方式】以下，參考附圖詳細說明本發明的實施形態。《室外機組的構成》該實施形態所關係之室外機组（1〇)構成本發明所關係之冷凍裝置的熱源機組。該室外機組（10)經由氣側聯絡配管 (20)與液側聯絡配管（21)連接在室内機組（7)上。如圖1所示，熱源機組（10)收納有是熱源側迴路的室外迴路（12)。室外迴路（12)中，壓縮機（14)、室外熱交換器 (15)、室外膨脹閥（16)、第1四路換向閥（17)以及第2四路換向閥（18)連接。第1四路換向閥（1 7)構成第丨切換機構，第2 四路換向閥（18)構成第2切換機構。而且，該室外機組（1〇) 中設置有第1氣侧連接口（31)、第2氣側連接口（32)、第3氣側連接口（33)以及液側連接口（34)。壓縮機（14)構成為容量可變的壓縮機。壓縮機（14)的吐出側經由第1虱管（25)連接在第1氣側連接口（3 1)。第1四路換向閥（17)的第1閥口連接在第丨氣管（25)。壓縮機（14)的吸入側經由第2氣管（26)連接在第2氣側連接口（32)。第1四路換向閥（17)的第3閥口連接在第2氣管（26)。至外熱父換器（15)疋松向賴片（cr〇ss_ fin)式的雜管型（fin and tube)熱交換器，構成熱源側熱交換器。室外熱交換器 (1 5)的液側端口經由液管（28)連接在液側連接口（34)，室外 126149.doc 1342944 熱交換器（15)的氣側端口連接在第丨四路換向閥（17)的第2 閥口。補充說明一下，第1四路換向閥（17)的第四閥口被關閉。室外膨脹閥（16)構成電子膨脹閥，設置在液管（28)。第2四路換向閥（18)的第1閥口連接在第2氣管（26) ^第2 四路換向閥（18)的第2閥口被關閉。第2四路換向閥（18)的第3閥口連接在第1氣管（25)，第2四路換向閥（18)的第四閥口經由第3氣管（27)連接在第3氣侧連接口（33)。In the second aspect of the invention, in the refrigerant circuit (9) of the air conditioner (5), the third gas side connection port (33) and the use side circuit (8) of the heat source side circuit (12) of the heat source unit (10) The gas side port connection, the liquid side connection port (34) of the heat source side circuit (12) and the liquid side port connection 6 of the use side circuit (8) are in the air conditioner (5) 'the switching unit to be described later is not provided In the case of (60), the first switching mechanism (17) and the second switching mechanism (18) switch the operating state of the use unit (7). Specifically, the first switching mechanism (17) connects the gas side port of the heat source side heat exchanger (15) to the discharge side of the compressor (4), and the second switching mechanism (18) makes the third gas pipe (27). When the second heat pipe (15) is connected to the second air pipe (26), the heat source side heat exchanger (15) serves as a condenser, and the use side heat exchanger (4 turns) serves as a cooling operation for the evaporator; and the first switching mechanism (17) causes the heat source side. When the gas side of the heat exchanger (15) communicates with the suction side of the compressor (14) and the second switching mechanism (18) connects the third gas pipe (27) with the first gas pipe (25), the utilization side is used. Heat exchanger (4〇) 126149.doc •12· The condenser is a condenser and the heat source side heat exchanger (15) is a heating operation of the evaporator. In the third aspect of the invention, the air conditioning unit (5) includes an auxiliary unit (50). In the - assisting unit (50), the switching of the 'II by the four-way switching valve (54) is switched to the state in which the gas side end σ of the auxiliary heat exchanger (52) is in communication with the second connecting port (57) and the auxiliary heat. The gas side port of the exchanger (52) is in communication with the third connection port (58). Therefore, in the air conditioner (5) of the third aspect of the invention, switching by the four way switching valve (54) Switch between the following two states. That is, the state in which the gas side port of the auxiliary heat exchanger (52) is in communication with the first gas side connection port (31) to which the second connection port (57) is connected, and the gas side port of the auxiliary heat exchanger (52) The second gas side connection port (32) to which the third connection port (58) is connected is connected. In the fourth aspect of the invention, the air conditioning unit (5) includes a plurality of units (7). The plurality of utilization side circuits (8) in the unit (7) are connected in parallel with respect to the heat source side circuit (12). The gas side port of each utilization unit (7) is connected to the third gas side connection port (33), and the liquid side port of each utilization unit (7) is connected to the liquid side connection port (34). In the fifth aspect of the invention, the operation state switching means (63, 64) of the switching unit (60) provided in each of the utilization units (7) is switched to use the utilization side circuit (8) of the utilization unit (?). A state in which the gas side port is in communication with the second gas side connection port (32) and a state in which the gas side port of the use side circuit (8) of the use unit (7) is in communication with the third gas side connection port (33). When the operation state switching means (63, 64) connects the gas side port of the use side circuit (8) to the second gas side connection port (32), the use side circuit (8) serves as a cooling operation of the evaporator. With Zhao 126I49.doc • 13· 1J42944 and. The refrigerant that has been condensed by heat exchange on the heat source side H (15) t is introduced into the utilization side circuit (8) through the liquid side connection port (34). (4) The refrigerant that has entered the use side circuit (8) evaporates in the (four) (four) exchanger (10) and returns to the suction side of the compressor (14) through the first side connection port (32). When the operating state switching mechanism (63, 64) connects the gas side port of the use side circuit (8) to the (4) connection port (33), the (four) side circuit (8) is heated by the condenser. Specifically, the refrigerant discharged from the compressor (4) is introduced into the use side circuit (8) through the third gas side connection D (33). The refrigerant introduced into the use side circuit (8) is condensed by the gamma converter (40), and then introduced into the heat source side heat exchanger |5 (15) through the liquid side connection port (10), where it is evaporated and sucked into the compressor (14). ). In the invention of the fifth aspect, the heat source unit (10) of the invention of the first state is applied to the switching unit () provided for each utilization unit (7), and The switching mechanism (63, 64) is in the air conditioner (5) that switches the operating state of the unit (7). [Effect of the Invention] The external unit (1 〇) has a configuration of the following heat source unit (10), and has a first gas side connection port (31) that is in communication with the discharge side of the compressor (14). The heat source unit (10) can be applied to any of the following air conditioners. (5) Let 'the air conditioner (7)' be operated by the heat source unit (10) • @switch mechanism (17) for the utilization unit (7) The state is switched, and the other air conditioner (5) is operated by the switching mechanism (63, 64) accommodated by each of the use units (7) and the switching mechanism (63, 64) accommodated by the unit (7) = line Switch. In the heat source unit (10), if the second switching mechanism (_3 milk side connection port (33) is in communication with the first air pipe (25), the third air side connection port J26I49.doc 1342944 (33) becomes the slave compressor ( 14) a valve port through which the refrigerant flows out after the compression; the liquid side connection port (34) serves as a valve port through which the condensed liquid refrigerant evaporates in the heat source side heat exchanger (丨5) flows; the second gas side connection port (32) The valve port into which the refrigerant after the evaporation of the compressor (4) flows in. On the other hand, the second switching mechanism (18) connects the third gas side connection port (33) and the second air pipe (26). In the case of the communication, the liquid-side connection port (34) becomes a valve port through which the liquid refrigerant condensed in the heat source side heat exchanger (15) flows out; and the second gas side connection port (32) becomes the suction of the compressor (14) _ The valve port through which the refrigerant flows after evaporation; the first gas side connection port (3丨) serves as a valve port through which the refrigerant discharged from the compressor (14) flows out. For example, as shown in Fig. 5, if the use side circuit is used ( 8) The gas side port is connected to the third gas side connection port (33), and the liquid side port of the use side circuit (8) is connected to the liquid side connection port (34), The liquid side port of the auxiliary heat exchanger (52) of the auxiliary unit (5 〇) is connected to the liquid side connection port (34) and the gas side port of the auxiliary heat exchanger (52) is selectively connected to the third side When the connection port (3丨) is connected to the second gas side connection port (32), the third gas side connection port (33)% is connected to the first air pipe (25) by the side circuit (8). The sorghum refrigerant discharged from the compressor (14) is supplied through the third gas side connection port (33), and the use side heat exchanger (4 〇) serves as a heating operation of the condenser. If this heating operation is already in progress By using the refrigerant-assisted auxiliary heat exchanger (52) condensed in the side • exchanger (4G), the introduced refrigerant evaporates from the auxiliary heat exchanger (52) from the second gas side connection port (32). The heat source side circuit (12) flows into the compressor (10). On the other hand, in the second switching mechanism (18), the third gas side connection port is called (the state is connected to the second air pipe ((6)). The condensed liquid ~V medium L in the heat source side heat exchanger (15) is supplied through the liquid side connection port (34) and is utilized by the side heat exchanger (4〇) to be 126l49.doc 1342944 • 4 evaporation In the cooling operation, the refrigerant discharged from the compressor (14) through the first gas side connection port (31) is introduced into the auxiliary heat exchanger (52), and the introduced refrigerant is in the auxiliary heat exchanger. (52) After the condensation, the liquid refrigerant that has been condensed in the heat source side heat exchanger (15) is introduced into the use side heat exchanger (40). The refrigerant that has been introduced into the use side heat exchanger (4〇) is on the utilization side. The heat exchanger (40) evaporates, and the evaporated low-pressure refrigerant flows from the third gas side. The port (33) flows into the heat source side circuit (12) and is sucked into the compressor (14). _ Therefore, if the gas side port of the auxiliary heat exchanger (52) of the auxiliary unit (50) is selectively connected to the third gas side connection port (3 1} and the second gas side connection port, it can be derived from The low-pressure gaseous refrigerant that is the auxiliary heat exchanger (52) of the evaporator during the heating operation is introduced into the compressor 〇4) through the second gas-side connection port (32); and the high-pressure gaseous refrigerant can also be passed through the 丨 gas side connection. The interface (31) is introduced into the auxiliary heat exchanger (52) of the condenser at the time of the cooling operation. Therefore, the auxiliary unit (50) can be used in response to both the cooling operation and the heating operation. In other words, the outdoor unit (该) of the embodiment can be connected to the auxiliary unit (50) in accordance with both the heating operation and the cooling operation. In the third aspect of the invention, the gas side port of the auxiliary heat exchanger (52) is selectively connected to the first gas side connection port (31) and the second gas side connection port (32). As described above, when the heating operation is performed, the low-pressure gaseous refrigerant from the auxiliary heat exchanger (52) serving as the evaporator can be introduced into the compressor (14) through the second gas-side connection port (32); At this time, the high-pressure gaseous refrigerant can be introduced into the auxiliary heat exchanger (52) of the condenser through the first gas-side connection port (3!). The auxiliary I26149.doc 16 unit (50) of the third aspect of the invention can be connected to the air conditioning unit (5) so that the auxiliary heat exchanger can be used whether the cooling operation is performed or the heating operation is performed. (52) An operation for compensating the amount of enthalpy exchange in the heat source side heat exchanger (15). [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. <<Configuration of Outdoor Unit>> The outdoor unit (1〇) according to this embodiment constitutes a heat source unit of the refrigeration system according to the present invention. The outdoor unit (10) is connected to the indoor unit (7) via a gas side communication pipe (20) and a liquid side communication pipe (21). As shown in Fig. 1, the heat source unit (10) houses an outdoor circuit (12) which is a heat source side circuit. In the outdoor circuit (12), the compressor (14), the outdoor heat exchanger (15), the outdoor expansion valve (16), the first four-way reversing valve (17), and the second four-way reversing valve (18) are connected. . The first four-way switching valve (17) constitutes a second switching mechanism, and the second four-way switching valve (18) constitutes a second switching mechanism. Further, the outdoor unit (1) is provided with a first gas side connection port (31), a second gas side connection port (32), a third gas side connection port (33), and a liquid side connection port (34). The compressor (14) is configured as a variable capacity compressor. The discharge side of the compressor (14) is connected to the first gas side connection port (3 1) via the first manifold (25). The first valve port of the first four-way switching valve (17) is connected to the first air pipe (25). The suction side of the compressor (14) is connected to the second gas side connection port (32) via the second air pipe (26). The third valve port of the first four-way switching valve (17) is connected to the second air pipe (26). The outer heat master exchanger (15) is a fin-and-tube heat exchanger of the type cruss_fin type, and constitutes a heat source side heat exchanger. The liquid side port of the outdoor heat exchanger (15) is connected to the liquid side connection port (34) via the liquid pipe (28), and the gas side port of the outdoor 126149.doc 1342944 heat exchanger (15) is connected at the fourth channel. To the second port of the valve (17). In addition, the fourth port of the first four-way selector valve (17) is closed. The outdoor expansion valve (16) constitutes an electronic expansion valve and is disposed in the liquid pipe (28). The first valve port of the second four-way switching valve (18) is connected to the second air pipe (26). The second valve port of the second four-way switching valve (18) is closed. The third valve port of the second four-way switching valve (18) is connected to the first air pipe (25), and the fourth valve port of the second four-way switching valve (18) is connected to the third air port via the third air pipe (27). Gas side connection port (33).

第1四路換向閥（17)及第2四路換向閥（18)分別能夠在以下狀態間切換。即，第1閥口與第2閥口相互聯通且第3閥口與第四閥口相互聯通的第1狀態（圖丨中實線所示的狀態）、以及第1閥口與第四閥口相互聯通且第2閥口與第3閥口相互聯通的狀態（圖1中虛線所示的狀態）^補充說明— 下’可以用三路換向閥代替各個四路換向閥（〗7，1 8)構成第1切換機構（17)、第2切換機構（18)。還可以用兩個電磁閥構成第1切換機構（17)、第2切換機構（18)。The first four-way switching valve (17) and the second four-way switching valve (18) can be switched between the following states. In other words, the first valve port and the second valve port are in communication with each other, and the third valve port and the fourth valve port are in communication with each other in a first state (a state indicated by a solid line in the drawing), and the first valve port and the fourth valve port. The ports are connected to each other and the second valve port and the third valve port are in communication with each other (the state shown by the broken line in Fig. 1). Supplementary explanation - "The three-way directional control valve can be replaced by the three-way directional control valve (〗 7 (1) The first switching mechanism (17) and the second switching mechanism (18) are configured. The first switching mechanism (17) and the second switching mechanism (18) may be constituted by two electromagnetic valves.

<冷凍裝置的構成與動作> 以下，對適用了本發明所關係之室外機組（1 〇)的三個形態的冷凍裝置（5)的構成及運轉動作分別加以說明。《第1形態的冷凍裝置》第1形態的冷凍裝置（5)是，能夠進行冷卻運轉即冷氣運轉或者加熱運轉即暖氣運轉的空調裝置（5)〇如圖2所示，在該空調裝置（5)中，複數台的利用機組（7a，7b,…）相對室外機組（10)相互並列設置。補充說明一下，室内機組（7)可以僅為一台° 126149.doc ^^4 • 。各個室内機組（7)分別被收納在室内迴路内。在室内、路(8)中從氣侧端口依序設置有室内熱交換器(4〇)與室内 2閥⑷）。室内熱交換器（4G)是橫向_片—Μη)式的 %官型（fin and tube)熱交換器。室内膨脹閥㈠㈠是電子膨脹閥。各個室内迴路（8)的氣側端口經由氣側聯絡配管（2〇)連接在室外機組（1〇)的第3氣側連接口（33)’各個室内迴路（8)的 % 液側端口經由液側聯絡配管（21)連接在室外機組（10)的液 J連接口（3 4)。在该空調裝置（5)中，室外迴路（丨2)與室内迴路（8a，8b，…）經由氣側聯絡配管（2〇)與液側聯絡配管（21) 連接，便構成進行蒸氣壓縮冷凍循環的冷媒迴路（9)。 -運轉動作- 以下對第1形態的空調裝置（5)的運轉動作進行說明。補充說明一下，在該空調裝置（5)中，進行冷氣運轉還是暖氣運轉，係由室外機組（1〇)的第I四路換向閥（17)與第2四路 % 換向閥（18)調節6若第1四路換向閥U7)及第2四路換向閥 (1 8)被設定為冷氣運轉的狀態，則運轉中所有的室内機組 (7)都進行冷氣運轉；若第1四路換向閥（17)及第2四路換向閥（18)被設定為暖氣運轉的狀態，則運轉中所有的室内機組（7)都進行暖氣運轉。 <冷氣運轉> 如圖3所示，在冷氣運轉中，第丨四路換向閥（17)被設定為第1狀態，第2切換機構（1 8)被設定為第2狀態。若在該狀態下使壓縮機（14)運轉，則在冷媒迴路（9)中進行室外熱交 126149.doc •19· U42944 空調裝置⑺㈣構中再設置輔助機組（5G)而構成的。輔助機組（50)與室外機組〇〇)一起被設置在室外。補充說明一下’輔助機組（50)的台數可以為複數台。輔助機組（50)中收納有輔助機組迴路（51)。輔助機組迴路（51)中設置有輔助熱交換器（52)、膨脹閥（53)以及四路換向閥（54)。輔助機組（5〇)中還設置有第丨連接口（56)、第2連接口（57)以及第3連接口（58)。熱源側熱父換器（15)是橫向鰭片式的縛管型 (fin and tube)熱交換器。辅助熱交換器（52)的液側端口連接在第1連接口（56)，輔助熱交換器（52)的氣側端口連接在四路換向閥（54)的第2閥口。四路換向閥（54)的第丨閥口連接在第3連接口（58),四路換向閥（54)的第3閥口連接在第2 連接口 (57) ’四路換向閥(54)的第四閥口被關閉。膨脹閥 (53)疋電子膨脹閥，且被設置在輔助熱交換器（52)與第1連接口（56)之間》四路換向閥（54)能夠在以下狀態間進行切換。即第i 閥口與第2閥口相互聯通且第3閱口與帛^ 口相互聯通的第1狀態（圖5 t實線所示的狀態）、和第】閥口與第四閥口相互聯通且第2閥口與第3閥口相互聯通的狀態（圖5中虛線所不的狀態）>若四路換向閥（54)被設定為第i狀態，則成為輔助熱交換器（52)的氣側端口與第3連接口（58)聯通的狀態；若四路換向閥（54)被設定為第2狀態，則成為輔助熱交換器(52)的氣側端口與第2連接口 (57)聯通的狀態。這樣四路換向閥（54)構成輔助切換機構。補充說明一下可以用 126149.doc -21 · 、路換向閱代替四路換向閥（54)構成輔助切換機構。還可、用兩個電磁閥構成輔助切換機構。辅助機組（50)的第1連接口（56)連接在液側聯絡配管 (i)第2連接口（57)連接在室外機組（1〇)的第1氣侧連接口 / 〇 1 \ 第3連接口（58)連接在室外機組的第2氣侧連接口 (32)。 -運轉動作_ 以下’對第2形態的空調裝置（5)的運轉動作進行說明。與别述第1形態的空調裝置（5)一樣，在該空調裝置中，右第1四路換向閥（丨7)及第2四路換向閥（18)被設定為冷氣運轉的狀態，則運轉中所有的利用機組都進行冷氣運轉，若第1四路換向閥（17)及第2四路換向閥（18)被設定為暖氣運轉的狀態，則運轉中所有的利用機組（7)都進行暖氣運轉。 <冷氣運轉> 如圖6所示’在冷氣運轉中，第1四路換向閥〇7)被設定為第1狀態，第2切換機構（18)被設定為第2狀態》若在該狀態下使壓縮機（14)運轉’則在冷媒迴路（9)中進行室外熱交換器（1 5)成為凝結器、室内熱交換器（40)成為蒸發器之蒸氣壓縮式冷凍循環。補充說明一下，在進行冷氣運轉的室内機組（7)的台數很多之情形等需要較大的冷氣能力之情形，輔助機組（5〇) 的四路換向閥（54)被設定為第2狀態。在該狀態下，辅助機組（50)的輔助熱交換器（52)與室外熱交換器（15)—起成為凝 126149.doc •22- 1342944 結器；在所需要的冷氣能力較小之情形輔助機組（50)的四路換向閥（54)被設定為第1狀態。此情形下，進一步將膨脹閥（53)設定為關閉狀態。在該狀態下，冷媒不在輔助機組 (5 0)的輔助熱交換器（52)中流通。該空調裝置（5)，藉由調節來使用或者不使用辅助機組（50)的輔助熱交換器（52)，能夠對所需要的冷氣能力一直進行適當的冷凍循環。是以，該空調裝置（5)能夠一直在性能係數（COp)很高的狀態下進行運轉》<Configuration and Operation of Refrigeration Apparatus> The configuration and operation of the three types of refrigeration units (5) to which the outdoor unit (1) according to the present invention is applied will be described below. "Freezer of the first aspect" The refrigeration system (5) of the first aspect is an air conditioner (5) capable of performing a cooling operation, that is, a cooling operation or a heating operation, that is, a heating operation, as shown in Fig. 2, in the air conditioner ( 5) In the middle, the plurality of utilization units (7a, 7b, ...) are arranged side by side with respect to the outdoor unit (10). In addition, the indoor unit (7) can be only one unit 126149.doc ^^4 • . Each indoor unit (7) is housed in an indoor circuit. In the indoor and road (8), an indoor heat exchanger (4 〇) and an indoor 2 valve (4) are sequentially disposed from the gas side port. The indoor heat exchanger (4G) is a fin-and-tube heat exchanger of the lateral_sheet-Μn type. The indoor expansion valve (1) (1) is an electronic expansion valve. The gas side port of each indoor circuit (8) is connected to the third gas side connection port (33) of the outdoor unit (1) via the gas side communication pipe (2). The liquid side port of each indoor circuit (8) is via the liquid side port. The liquid side communication pipe (21) is connected to the liquid J connection port (3 4) of the outdoor unit (10). In the air conditioner (5), the outdoor circuit (丨2) and the indoor circuit (8a, 8b, ...) are connected to the liquid-side communication pipe (21) via the gas-side communication pipe (2), and the steam compression is performed. Circulating refrigerant circuit (9). -Operational Operation - The operation of the air conditioner (5) of the first aspect will be described below. In addition, in the air conditioner (5), whether the air-conditioning operation or the heating operation is performed is the first four-way directional control valve (17) and the second four-way directional control valve (18) of the outdoor unit (1). Adjustment 6 If the first four-way selector valve U7) and the second four-way selector valve (18) are set to the air-cooling operation state, all the indoor units (7) in operation are in the air-conditioning operation; When the four-way switching valve (17) and the second four-way switching valve (18) are set to the heating operation state, all the indoor units (7) are in the heating operation during the operation. <Cold-air operation> As shown in Fig. 3, in the air-conditioning operation, the fourth-way switching valve (17) is set to the first state, and the second switching mechanism (18) is set to the second state. When the compressor (14) is operated in this state, the outdoor heat transfer is performed in the refrigerant circuit (9). The auxiliary unit (5G) is further installed in the air conditioner (7) (4). The auxiliary unit (50) is placed outdoors together with the outdoor unit 〇〇). Supplementary Note 1 The number of auxiliary units (50) can be multiple. An auxiliary unit circuit (51) is housed in the auxiliary unit (50). An auxiliary heat exchanger (52), an expansion valve (53), and a four-way switching valve (54) are provided in the auxiliary unit circuit (51). A second connection port (56), a second connection port (57), and a third connection port (58) are also provided in the auxiliary unit (5〇). The heat source side heat master converter (15) is a lateral fin type fin and tube heat exchanger. The liquid side port of the auxiliary heat exchanger (52) is connected to the first connection port (56), and the gas side port of the auxiliary heat exchanger (52) is connected to the second valve port of the four way switching valve (54). The third port of the four-way reversing valve (54) is connected to the third port (58), and the third port of the four-way reversing valve (54) is connected to the second port (57) 'four-way reversing The fourth port of the valve (54) is closed. The expansion valve (53) is an electronic expansion valve and is disposed between the auxiliary heat exchanger (52) and the first connection port (56). The four-way switching valve (54) is capable of switching between the following states. That is, the first state in which the i-th valve port and the second valve port are in communication with each other, and the third reading port and the port are in communication with each other (the state shown by the solid line in FIG. 5), and the first valve port and the fourth valve port are mutually connected. The state in which the second valve port and the third valve port are in communication with each other (the state in which the broken line is not shown in Fig. 5)> When the four-way switching valve (54) is set to the i-th state, it becomes an auxiliary heat exchanger ( 52) The state in which the gas side port is in communication with the third connection port (58); and when the four-way switching valve (54) is set to the second state, the gas side port of the auxiliary heat exchanger (52) and the second side The state of the connection port (57) is connected. Such a four-way reversing valve (54) constitutes an auxiliary switching mechanism. In addition, the auxiliary switching mechanism can be constructed by using 126149.doc -21 ·, road reversal reading instead of four-way reversing valve (54). It is also possible to use two solenoid valves to form an auxiliary switching mechanism. The first connection port (56) of the auxiliary unit (50) is connected to the liquid side communication pipe (i) The second connection port (57) is connected to the first gas side connection port of the outdoor unit (1〇) / 〇1 \ 3rd The connection port (58) is connected to the second gas side connection port (32) of the outdoor unit. -Operational Operation _ Hereinafter, the operation of the air conditioner (5) of the second embodiment will be described. In the same manner as the air conditioner (5) of the first aspect, the right first four-way switching valve (丨7) and the second four-way switching valve (18) are set to the state of the air-conditioning operation. , all the operating units in the operation are in the air-conditioning operation. If the first four-way reversing valve (17) and the second four-way reversing valve (18) are set to the heating operation state, all the operating units in operation (7) All are heated. <Cold-air operation> As shown in Fig. 6, 'in the air-conditioning operation, the first four-way selector valve 〇7 is set to the first state, and the second switching mechanism (18) is set to the second state. In this state, the compressor (14) is operated to perform a vapor compression refrigeration cycle in which the outdoor heat exchanger (15) serves as a condenser and the indoor heat exchanger (40) serves as an evaporator in the refrigerant circuit (9). In addition, in the case where the number of indoor units (7) for performing the air-conditioning operation is large, etc., a large air-conditioning capacity is required, and the four-way reversing valve (54) of the auxiliary unit (5〇) is set to the second. status. In this state, the auxiliary heat exchanger (52) of the auxiliary unit (50) and the outdoor heat exchanger (15) become the condensing device 126149.doc • 22-1342944; when the required air-conditioning capacity is small The four-way switching valve (54) of the auxiliary unit (50) is set to the first state. In this case, the expansion valve (53) is further set to the closed state. In this state, the refrigerant does not flow in the auxiliary heat exchanger (52) of the auxiliary unit (50). The air conditioner (5) can be adjusted to use the auxiliary heat exchanger (52) of the auxiliary unit (50) to perform an appropriate refrigeration cycle for the required cold air capacity. Yes, the air conditioner (5) can always operate with a high coefficient of performance (COp).

以下，對以輔助機組（50)的辅助熱交換器（52)作為凝結器用之情形冷媒的流動情形進行說明。補充說明一下，冷媒在室外機組（10)及室内機組（7)之流動與前述第1形態的空調裝置（5)的冷氣運轉相同，故省略不提。在該冷氣運轉中，從壓縮機（14)吐出之冷媒的一部份流入輔助機組迴路（51)。在該輔助機組迴路（51)中已流入的 1媒在輔助熱交換器（52)中與室外空氣進行熱交換而凝Hereinafter, the flow of the refrigerant in the case where the auxiliary heat exchanger (52) of the auxiliary unit (50) is used as a condenser will be described. Incidentally, the flow of the refrigerant in the outdoor unit (10) and the indoor unit (7) is the same as that in the air-conditioning apparatus (5) of the first aspect, and therefore will not be mentioned. In the cooling operation, a part of the refrigerant discharged from the compressor (14) flows into the auxiliary unit circuit (51). The medium that has flowed in the auxiliary unit circuit (51) exchanges heat with the outdoor air in the auxiliary heat exchanger (52) to condense

結。已在輔助熱交換器（52)中凝結的冷媒與已在室外熱交換器（15)中凝結的冷媒合流後被分配給各個室内迴路（8)。 <暖氣運轉> 圖所示，在暖氣運轉中，第1四路換向閥（1 7)被設定為第2狀@ ’第2切換機構（18)被設定為第1狀態。若在該狀使壓縮機（14)運轉’則在冷媒迴路（9)中進行室内熱交換二（40)成為凝結器、室外熱交換器⑴）成為蒸發器之蒸乳壓縮式冷凍循環。補充說明__ ^ y 下’在進订暖氣運轉的室内機組（7)的台數 I26I49.doc •23· 1342944 很多之情形等需要較大的暖氣能力之情形，輔助機組（5〇) 的四路換向閥（54)被設定為第1狀態。在該狀態下，輔助機組（50)的輔助熱交換器（52)與室外熱交換器〇 5)一起成為蒸發器；在所需要的暖氣能力較小之情形輔助機組（5〇)的四路換向閥（54)被設定為第2狀態。此情形下，進一步將膨脹閥（53)設定為關閉狀態.在該狀態下，冷媒不在輔助機組 (5 0)的輔助熱交換器（52)中流通β該空調裝置（5)，藉由調節來使用或者不使用輔助機組（5〇)的辅助熱交換器（52), 月&夠對所需要的暖氣能力一直進行適當的冷凍循環。是以’該空調裝置（5)能夠一直在性能係數（c〇P)很高的狀態下進行運轉。以下’對以輔助機組（50)的輔助熱交換器（52)作為蒸發器用之情形冷媒的流動情形進行說明。補充說明一下，冷媒在室外機組（1 〇)及室内機組（7)之流動與前述第1形態的空調裝置（5)的暖氣運轉相同，故省略不提。在該暖氣運轉中，已在室内熱交換器（40)令凝結的冷媒的 °卩伤"IL入輔助機組迴路（5 1) ^在該輔助機組迴路（5 1) 中已流入的冷媒被膨脹閥（53)減壓後在輔助熱交換器（52) 中與室外空氣進行熱交換而蒸發。已在輔助熱交換器（52) 中洛發的冷媒流入室外迴路（丨2)，與已在室外熱交換器 (1 5)蒸發的冷媒合流並被吸入壓縮機（丨4)。《第3形態的冷凍裝置》第3形態的空調裝置（5)是一種各個室内機組（7a，7b，）月b夠選擇進行暖氣運轉還是冷氣運轉，即所謂的冷氣暖氣 I26149.doc •24- 1342944 運轉自由的空調裝置（5)。如圖8所示，在該空調裝置（5) 中，複數室内機組（7a，7b，…）相互並列連接在室外機組 (10) ’對每一個室内機組（7a，7b，…）設置有BS機組（60a， 60b，···）。各個BS機組（60a，60b，…）構成切換機組。補充說明一下，在圖8，第1室内機組（7a)和第2室内機組（7b)以外的室内機組被省略。Knot. The refrigerant condensed in the auxiliary heat exchanger (52) is combined with the refrigerant condensed in the outdoor heat exchanger (15) and distributed to the respective indoor circuits (8). <Heating operation> As shown in the figure, in the heating operation, the first four-way switching valve (17) is set to the second state@', and the second switching mechanism (18) is set to the first state. When the compressor (14) is operated in this state, the indoor heat exchange is performed in the refrigerant circuit (9), and the condenser (C) is an evaporator and the outdoor heat exchanger (1) is a vapor compression refrigeration cycle of the evaporator. Supplementary explanation __ ^ y Next 'Number of indoor units (7) in the heating operation I26I49.doc •23· 1342944 In many cases, etc., where a large heating capacity is required, the auxiliary unit (5〇) The road switching valve (54) is set to the first state. In this state, the auxiliary heat exchanger (52) of the auxiliary unit (50) becomes the evaporator together with the outdoor heat exchanger 〇5); the auxiliary unit (5 〇) four paths are provided in the case where the required heating capacity is small. The changeover valve (54) is set to the second state. In this case, the expansion valve (53) is further set to the closed state. In this state, the refrigerant does not flow β in the auxiliary heat exchanger (52) of the auxiliary unit (50), and the air conditioner (5) is adjusted by The auxiliary heat exchanger (52) with or without the auxiliary unit (5 ,), the month & is able to carry out the appropriate refrigeration cycle for the required heating capacity. Yes, the air conditioner (5) can always operate with a high coefficient of performance (c〇P). Hereinafter, the flow of the refrigerant in the case where the auxiliary heat exchanger (52) of the auxiliary unit (50) is used as the evaporator will be described. Incidentally, the flow of the refrigerant in the outdoor unit (1 〇) and the indoor unit (7) is the same as the heating operation of the air conditioner (5) according to the first aspect, and therefore will not be omitted. In this heating operation, the refrigerant that has condensed in the indoor heat exchanger (40) is erected "IL into the auxiliary unit circuit (5 1) ^The refrigerant that has flowed into the auxiliary unit circuit (5 1) is After the expansion valve (53) is decompressed, it exchanges heat with the outdoor air in the auxiliary heat exchanger (52) to evaporate. The refrigerant that has been released in the auxiliary heat exchanger (52) flows into the outdoor circuit (丨2), merges with the refrigerant that has evaporated in the outdoor heat exchanger (15), and is sucked into the compressor (丨4). <<The Freezer of the Third Aspect>> The air conditioner (5) of the third aspect is a type of indoor unit (7a, 7b,). It is sufficient to select whether to perform the heating operation or the cooling operation, that is, the so-called air-conditioning heating I26149.doc • 24- 1342944 Air conditioning unit (5) that operates freely. As shown in Fig. 8, in the air conditioner (5), a plurality of indoor units (7a, 7b, ...) are connected to each other in parallel with each other in the outdoor unit (10) 'A BS is provided for each indoor unit (7a, 7b, ...) Unit (60a, 60b, ···). Each BS unit (60a, 60b, ...) constitutes a switching unit. In addition, in Fig. 8, the indoor unit other than the first indoor unit (7a) and the second indoor unit (7b) is omitted.

各個BS機組（60)中分別收納有液側迴路（6丨）和氣側迴路 (62)。液側迴路（61)的一端連接有自室外機組（1〇)的液側連接口（34)延伸出的液側聯絡配管（21)。液側迴路（61)的另一端連接有連接在室内迴路（8)的液側端口的冷媒配管。A liquid side circuit (6 丨) and a gas side circuit (62) are accommodated in each of the BS units (60). One end of the liquid side circuit (61) is connected to a liquid side communication pipe (21) extending from the liquid side connection port (34) of the outdoor unit (1). The other end of the liquid-side circuit (61) is connected to a refrigerant pipe connected to the liquid-side port of the indoor circuit (8).

氣側迴路（62)包括：設置有第丨電磁閥（63)的第1配管與〇又置有第2電磁閥（64)的第2配管。第1配管與第2配管之一端連接。從第1配管的一端與第2配管的一端之連接部份延伸出的冷媒配管連接在室内迴路（8)的氣側端口。第丨配管的另一端連接有自室外機組（10)的第3氣側連接口（33)延伸出的第1氣側聯絡配管（20a)。第2配管的另一端連接有自室外機組（10)的第2氣側連接口（32)延伸出的第2氣侧聯絡配管（20b)。第1電磁閥（63)與第2電磁閥（64)構成運轉狀態切換機構。與前述第2形態的空調裝置（5)一樣，在該空調裝置（5)中設置有辅助機組（50)。輔助機組（50)的第丨連接口（56)連接在液側聯絡配管（21)，第2連接口（57)連接在室外機組（1〇) 的第1氣側連接口（31)。帛3連接口（58)連接在第2氣側聯絡配管（20b)。 126I49.doc -25- 1342944 -運轉動作- 以下’對第3幵〉態的空調裝置(5)的運轉動作進行說明。在該空調裝置⑺中，除進行冷氣運轉、暖氣運轉以外，還進行進行冷氣運轉的室内機組⑺與進行暖氣運轉的室内機組（7)同時存在的冷暖氣運轉。 <冷氣運轉> 如圖9所示，在冷氣運轉中，室外機組（ι〇)的第2四路換向閥（18)被& ^為第2狀態。在輔助機組（5())中，四路換向閥（54)被設定為第2狀態。在各個8§機組（6〇)中，第丨電磁閥（63)被設定為關閉狀態，第2電磁閥（64)被設定為打開狀態。若在該狀態下使壓縮機（14)運轉，則在冷媒迴路中進行辅助機組（50)的輔助熱交換器（52)成為凝結器且室内熱交換器（40)成為蒸發器的蒸氣壓縮式冷凍循環。補充說明一下，在進行冷氣運轉的室内機組的台數很多之情形等需要較大的冷氣能力之情形’室外機組（1〇) 的第1四路換向閥（1 7)被設定為第丨狀態。在該狀態下，室外熱交換器（15)與辅助機組（50)的輔助熱交換器（52) 一起成為凝結器；在所需要的冷氣能力較小之情形第丨四路換向閥（丨7)被設定為第2狀態。此情形下，進一步將室外膨脹閥 (16)設定為關閉狀態。在該狀態下，冷媒不在室外熱交換器（1 5)中流通。該空調裝置（5) ’藉由調節來使用或者不使用室外熱交換器（15)，能夠對所需要的冷氣能力一直進行適當的冷凍循環。是以，該空調裝置（5)能夠一直在性能係數（COP)很高的狀態下進行運轉。 126149.doc • 26- ，對以室外熱交換器（15)作為凝結器用之情形冷媒的流動情形進行說明。在該冷氣運轉中，從壓縮機（14)吐出之冷媒的一部份從輔助機，.且（50)的第2連接口（5 7)流向輔助機組迴路（5丨）。已流入輔助機組迴路（5丨）的冷媒在輔助熱交換器（52)中與室外空氣進行熱交換而凝結。從壓縮機（14)吐出之冷媒的剩餘部份在室外熱交換器(15)中與室外空氣進行熱交換而凝已在室外熱交換器（1 5)中凝結的冷媒與在輔助機組 (5〇)的輔助熱交換器（52)中凝結的冷媒合流。已合流的凝結後之冷媒被分配給各個室内迴路。被分配來的冷媒通過Bs機組（6〇)的液側迴路（6ι)流向室内迴路（8)。已流入室内迴路（8)的冷媒被室内膨脹閥（4〗）減壓後在室内熱交換器（40)中與室内空氣進行熱交換而蒸發。已在室内熱交換器（40)中蒸發的冷媒通過BS機組（6〇)的氣側迴路（62)的第2配管流入室外迴路（12)，被吸入壓縮機 (14)。 <暖氣運轉> 如圖10所示，在暖氣運轉中，室外機組（10)的第2四路換向閥（1 8)被設定為第1狀態。在輔助機組（5〇)中，四路換向閥（54)被设疋為第1狀態。在各個bs機組（6〇)中，第1電磁閥（63)被設定為打開狀態，第2電磁閥（64)被設定為關閉狀態。若在該狀態下使壓縮機（14)運轉，則在冷媒迴路（9) 中進行室内熱交換器（40)成為凝結器且輔助機組（5〇)的輔助熱交換器（52)成為蒸發器的蒸氣壓縮式冷凍循環。 126149.doc -27· 1342944 補充說明一下，在進行暖氣運轉的室内機組（7)的台數很多之情形等需要較大的暖氣能力之情形，室外機組（1〇) 的第1四路換向閥（17)被設定為第2狀態❶在該狀態下，室外熱父換益（15)與輔助機組（5〇)的輔助熱交換器（52)一起成為蒸發為，在所需要的暖氣能力較小之情形第丨四路換向閥U7)被設；^為第】狀態。此情形下，進—步將室外膨服闊 (1 6)設定為關閉狀態。在該狀態下，冷媒不在室外熱交換器（15)中流通。該空調裝置（5)，藉由使用或者不使用室外熱交換器（15)，能夠對所需要的暖氣能力一直進行適當的冷洗循環。是以’該空調裝置（5)能夠一直在性能係數 (COP)很高的狀態下進行運轉。以下，對以室外熱交換器（15)作為蒸發器用之情形冷媒的流動情形進行說明。在該暖氣運轉巾，從壓縮機（14)吐出之冷媒被分配給各個室内迴路（8)。被分配的冷媒通過BS機組⑽）的氣側迴路 (62)的第1配管流向室内迴路（8)。已流入室内迴路（8)的冷媒唉室内熱交換器（4G)與室内空氣進行熱交換而凝結。已在室内熱交換器（40)中凝結的—部份冷媒流向輔助機組迴路⑼。已流入輔助機組迴路⑼的冷媒被㈣闊⑼ 減壓後在輔助熱交換器(52)與室外空氣進行熱交換而基發。已在室内熱交換器⑽）中凝結的冷媒的剩餘部份流入至外迴路（12)。已流人室外迴路（12)的冷媒被室外膨服闕 06)減壓後在室外熱交換器（15)中與室外空氣進行熱交換而蒸發。已在室外熱交植55 , 1 c、+ # 奐器（1 5)中蒸發的冷媒與在輔助機 126149.doc •28- 1342944 )的補助熱父換器（52)中蒸發的冷媒合流並被吸入壓縮機（14)。 <冷氣暖氣運轉>The gas side circuit (62) includes a first pipe provided with a second electromagnetic valve (63) and a second pipe provided with a second electromagnetic valve (64). The first pipe is connected to one end of the second pipe. A refrigerant pipe extending from a connection portion between one end of the first pipe and one end of the second pipe is connected to the gas side port of the indoor circuit (8). The other end of the second pipe is connected to the first gas side communication pipe (20a) extending from the third gas side connection port (33) of the outdoor unit (10). The other end of the second pipe is connected to a second gas side communication pipe (20b) extending from the second gas side connection port (32) of the outdoor unit (10). The first electromagnetic valve (63) and the second electromagnetic valve (64) constitute an operating state switching mechanism. Similarly to the air conditioner (5) of the second aspect, the air conditioner (5) is provided with an auxiliary unit (50). The first connection port (56) of the auxiliary unit (50) is connected to the liquid side communication pipe (21), and the second connection port (57) is connected to the first gas side connection port (31) of the outdoor unit (1〇). The 帛3 connection port (58) is connected to the second gas side communication pipe (20b). 126I49.doc -25- 1342944 -Operational operation - The following describes the operation of the air conditioner (5) in the third state. In the air conditioner (7), in addition to the cooling operation and the heating operation, the indoor unit (7) that performs the cooling operation and the indoor unit (7) that performs the heating operation are simultaneously operated. <Cold-air operation> As shown in Fig. 9, in the air-conditioning operation, the second four-way switching valve (18) of the outdoor unit (ι) is in the second state. In the auxiliary unit (5()), the four-way switching valve (54) is set to the second state. In each of the 8 § units (6 〇), the second electromagnetic valve (63) is set to the off state, and the second electromagnetic valve (64) is set to the open state. When the compressor (14) is operated in this state, the auxiliary heat exchanger (52) of the auxiliary unit (50) becomes a condenser in the refrigerant circuit, and the indoor heat exchanger (40) becomes a vapor compression type of the evaporator. Freezing cycle. In addition, in the case where the number of indoor units in which the air-conditioning operation is performed is large, the case requires a large air-conditioning capacity. The first four-way directional control valve (1 7) of the outdoor unit (1 〇) is set to the third 丨status. In this state, the outdoor heat exchanger (15) becomes a condenser together with the auxiliary heat exchanger (52) of the auxiliary unit (50); the fourth-way reversing valve is used in the case where the required cold air capacity is small (丨7) is set to the second state. In this case, the outdoor expansion valve (16) is further set to the closed state. In this state, the refrigerant does not flow in the outdoor heat exchanger (15). The air conditioner (5)' can be adjusted to use or not use the outdoor heat exchanger (15) to perform an appropriate refrigeration cycle for the required cold air capacity. Therefore, the air conditioner (5) can always operate in a state where the performance coefficient (COP) is high. 126149.doc • 26-, the flow of the refrigerant in the case where the outdoor heat exchanger (15) is used as a condenser will be described. In the cooling operation, a part of the refrigerant discharged from the compressor (14) flows from the auxiliary machine, and the second connection port (5 7) of the (50) to the auxiliary unit circuit (5丨). The refrigerant that has flowed into the auxiliary unit circuit (5 丨) is condensed by heat exchange with the outside air in the auxiliary heat exchanger (52). The remaining portion of the refrigerant discharged from the compressor (14) exchanges heat with the outdoor air in the outdoor heat exchanger (15) to condense the refrigerant that has condensed in the outdoor heat exchanger (15) and the auxiliary unit (5) The condensed refrigerant in the auxiliary heat exchanger (52) merges. The merged condensed refrigerant is distributed to each indoor circuit. The distributed refrigerant flows through the liquid side circuit (6 ι) of the Bs unit (6 〇) to the indoor circuit (8). The refrigerant that has flowed into the indoor circuit (8) is depressurized by the indoor expansion valve (4), and then exchanges heat with the indoor air in the indoor heat exchanger (40) to evaporate. The refrigerant that has evaporated in the indoor heat exchanger (40) flows into the outdoor circuit (12) through the second pipe of the gas side circuit (62) of the BS unit (6 〇), and is sucked into the compressor (14). <Heating operation> As shown in Fig. 10, in the heating operation, the second four-way switching valve (18) of the outdoor unit (10) is set to the first state. In the auxiliary unit (5〇), the four-way switching valve (54) is set to the first state. In each of the bs units (6 turns), the first electromagnetic valve (63) is set to the open state, and the second electromagnetic valve (64) is set to the closed state. When the compressor (14) is operated in this state, the indoor heat exchanger (40) becomes a condenser in the refrigerant circuit (9), and the auxiliary heat exchanger (52) of the auxiliary unit (5) becomes the evaporator. Vapor compression refrigeration cycle. 126149.doc -27· 1342944 In addition, in the case where the number of indoor units (7) for heating operation is large, etc., a large heating capacity is required, and the first unit of the outdoor unit (1〇) is reversed. The valve (17) is set to the second state. In this state, the outdoor hot father exchange (15) and the auxiliary heat exchanger (52) of the auxiliary unit (5) are evaporated to the required heating capacity. In the smaller case, the fourth four-way reversing valve U7) is set; ^ is the first state. In this case, the outdoor expansion (1 6) is set to the off state. In this state, the refrigerant does not flow in the outdoor heat exchanger (15). The air conditioner (5) can always perform an appropriate cold wash cycle for the required heating capacity by using or not using the outdoor heat exchanger (15). Therefore, the air conditioner (5) can always operate in a state where the coefficient of performance (COP) is high. Hereinafter, the flow of the refrigerant in the case where the outdoor heat exchanger (15) is used as the evaporator will be described. In the heating operation towel, the refrigerant discharged from the compressor (14) is distributed to each indoor circuit (8). The distributed refrigerant flows through the first pipe of the gas side circuit (62) of the BS unit (10) to the indoor circuit (8). The refrigerant/indoor heat exchanger (4G) that has flowed into the indoor circuit (8) is condensed by exchanging heat with indoor air. Part of the refrigerant that has condensed in the indoor heat exchanger (40) flows to the auxiliary machine circuit (9). The refrigerant that has flowed into the auxiliary unit circuit (9) is decompressed by (iv) wide (9) and then exchanged heat with the outdoor air in the auxiliary heat exchanger (52). The remaining portion of the refrigerant that has condensed in the indoor heat exchanger (10) flows into the outer circuit (12). The refrigerant that has flowed into the outdoor circuit (12) is swollen by the outside. 06) After decompression, it exchanges heat with the outdoor air in the outdoor heat exchanger (15) to evaporate. The refrigerant evaporated in the outdoor heat transfer 55, 1 c, + # 奂 (1 5) merges with the refrigerant evaporated in the auxiliary heat exchanger (52) of the auxiliary machine 126149.doc • 28-1342944) It is sucked into the compressor (14). <Air-conditioning heating operation>

對冷暖氣運轉進行說明。補充說明-下，此處，對僅由第1至内機組（7a)進行冷氣運轉、其他室内機組（7b，··.）進仃暖氣運轉的情形加以說明。如圖11所示，在該冷暖氣運轉中，至外機組（10)的第2四路換向閥（18)被設定為第1狀匕第1至内機組（7a)的BS機組（60a)中，第1電磁閥（63b) 被°又定為關閉狀態，第2電磁閥（64b)被設定為打開狀態。在第1室内機組（7a)以外的BS機組（6〇b，…）中，第1電磁閥 (63b)被設定為打開狀態，第2電磁閥（64b)被設定為關閉狀態。若在該狀態下使壓縮機（14)運轉，則在冷媒迴路（9)中進行第1室内機組（7a)以外的室内機組（7b，…）的室内熱交換器（40b，·.，）成為凝結器、第1室内機組（7a)的室内熱交換器（40a)成為蒸發器之蒸氣壓縮式冷凍循環。The cooling and heating operation will be described. Supplementary explanation - Here, a case where the air-conditioning operation is performed only by the first to inner units (7a) and the other indoor units (7b, ...) are subjected to the heating operation will be described. As shown in Fig. 11, in the air-cooling operation, the second four-way switching valve (18) to the outer unit (10) is set to the first unit 匕 first to inner unit (7a) BS unit (60a) In the middle, the first electromagnetic valve (63b) is again set to the closed state, and the second electromagnetic valve (64b) is set to the open state. In the BS unit (6〇b, ...) other than the first indoor unit (7a), the first electromagnetic valve (63b) is set to the open state, and the second electromagnetic valve (64b) is set to the closed state. When the compressor (14) is operated in this state, the indoor heat exchanger (40b, ...) of the indoor unit (7b, ...) other than the first indoor unit (7a) is performed in the refrigerant circuit (9). The indoor heat exchanger (40a) serving as the condenser and the first indoor unit (7a) serves as a vapor compression refrigeration cycle of the evaporator.

補充說明一下，藉由第1四路換向閥（1 7)、室外膨脹閥 (16)，室外熱交換器（15)被調節為成為凝結器的狀態、成為蒸發器的狀態以及冷媒不流通的狀態中之任一個狀態。具體而言’若室外膨脹閥（16)被設定為打開狀態、第1四路換向閥（17)被設定為第1狀態，則室外熱交換器（15)成為凝結器。若室外膨脹閥（16)被設定為打開狀態、第1四路換向閥（17)被設定為第2狀態，則室外熱交換器（15)成為蒸發器°若室外膨脹閥（16)被設定為關閉狀態，則成為冷媒不在室外熱交換器（1 5)中流通的狀態。 126149.doc -29- 1342944 藉由膨脹閥（53)、四路換向間（54)，辅助機組（5〇)的輔助熱父換器(52)被調節為成為凝結器的狀態、成為蒸發器的狀態以及冷媒不流通的狀態中之任一個狀態。具體而言，若膨脹閥(53)被設定為打開狀態 '四路換向閥(54)被設定為第2狀態，貝ij輔助熱交換器(52)成為凝結器。若膨脹閥 (53)被設定為打開狀態 '四路換向閥（54)被設定為第}狀態，則輔助熱交換器（52)成為蒸發器。若膨脹閥（53)被設定為關閉狀態’則成為冷媒不在輔助熱交換器(52)中流動的狀態。在該空調裝置（5)中，根據所需要的冷氣能力與暖氣能力，適當地調節第1四路換向閥（17)、室外膨脹閥（16)、輔助機組（50)的四路換向閥（54)以及膨脹閥（53)，室外熱交換器（15)及辅助機組（50)的辅助熱交換器（52)之使用狀態便得以調節。是以，該空調裝置（5)便一直進行適當的冷凍循環而能夠維持性能係數（C〇p)很高的狀態。以下，對室外熱交換器（15)及輔助機組（5〇)的輔助熱交換器（5 2)成為凝結器時冷媒的流動情形進行說明。在該冷暖氣運轉中，從壓縮機（14)吐出之冷媒被分配給第1室内機組（7a)之室内迴路（8a)以外的室内迴路（8b，）。在各個室内迴路（8b，·.·）中，已流入的冷媒在室内熱交換器 (40b，…）中與室内空氣進行熱交換而凝結。已被室内熱交換器（40b，…）凝結的冷媒被分配給室外迴路（12)、輔助機、’且迴路（5 1)以及第1室内機組（7a)的室内迴路（8a)。已流入室外迴路（12)的冷媒，被室外膨脹閥（16)減壓後 126149.doc -30· 1342944In addition, the first four-way switching valve (17) and the outdoor expansion valve (16) adjust the outdoor heat exchanger (15) to a state of being a condenser, a state of being an evaporator, and a refrigerant not flowing. Any of the states. Specifically, when the outdoor expansion valve (16) is set to the open state and the first four-way switching valve (17) is set to the first state, the outdoor heat exchanger (15) serves as a condenser. When the outdoor expansion valve (16) is set to the open state and the first four-way switching valve (17) is set to the second state, the outdoor heat exchanger (15) becomes the evaporator. If the outdoor expansion valve (16) is When it is set to the off state, the refrigerant does not flow in the outdoor heat exchanger (15). 126149.doc -29- 1342944 With the expansion valve (53) and the four-way reversing chamber (54), the auxiliary heat exchanger (52) of the auxiliary unit (5〇) is adjusted to be in the state of the condenser and becomes evaporated. One of the state of the device and the state in which the refrigerant does not flow. Specifically, if the expansion valve (53) is set to the open state, the four-way switching valve (54) is set to the second state, and the ij auxiliary heat exchanger (52) serves as a condenser. When the expansion valve (53) is set to the open state, the four-way switching valve (54) is set to the state in which the auxiliary heat exchanger (52) becomes the evaporator. When the expansion valve (53) is set to the closed state, the refrigerant does not flow in the auxiliary heat exchanger (52). In the air conditioner (5), the four-way commutation of the first four-way reversing valve (17), the outdoor expansion valve (16), and the auxiliary unit (50) is appropriately adjusted according to the required cooling capacity and heating capacity. The state of use of the valve (54) and the expansion valve (53), the outdoor heat exchanger (15) and the auxiliary heat exchanger (52) of the auxiliary unit (50) is adjusted. Therefore, the air conditioner (5) can maintain a state in which the coefficient of performance (C〇p) is high by performing an appropriate refrigeration cycle. Hereinafter, the flow of the refrigerant when the auxiliary heat exchanger (52) of the outdoor heat exchanger (15) and the auxiliary unit (5) is a condenser will be described. In the air-cooling operation, the refrigerant discharged from the compressor (14) is distributed to the indoor circuit (8b) other than the indoor circuit (8a) of the first indoor unit (7a). In each of the indoor circuits (8b, ...), the refrigerant that has flowed in is exchanged with the indoor air in the indoor heat exchanger (40b, ...) to be condensed. The refrigerant that has been condensed by the indoor heat exchanger (40b, ...) is distributed to the outdoor circuit (12), the auxiliary machine, the circuit (5 1), and the indoor circuit (8a) of the first indoor unit (7a). The refrigerant that has flowed into the outdoor circuit (12) is depressurized by the outdoor expansion valve (16) 126149.doc -30· 1342944

在室外熱交換器（15)中與室外空氣進行熱交換而蒸發。已流入輔助機組迴路（51)的冷媒被膨脹閥（53)減壓後在輔助熱交換器（52)中與室外空氣進行熱交換而蒸發。已流入第1 室内機組（7a)的室内迴路（8a)的冷媒被室内膨脹閥（41 &)減壓後在室内熱交換器（40 a)中與室内空氣進行熱交換而蒸發。最後，已在室外熱交換器（1 5)中蒸發的冷媒、已經在輔助機組（50)的輔助熱父換器（52)中蒸發的冷媒以及已經在第1至内機組（7 a)的室内熱交換器（4〇a)中蒸發的冷媒合流後被吸入壓縮機（14)。 -實施形態的效果·The outdoor heat exchanger (15) exchanges heat with outdoor air to evaporate. The refrigerant that has flowed into the auxiliary unit circuit (51) is decompressed by the expansion valve (53), and then exchanges heat with the outdoor air in the auxiliary heat exchanger (52) to evaporate. The refrigerant that has flowed into the indoor circuit (8a) of the first indoor unit (7a) is depressurized by the indoor expansion valve (41 &), and then exchanges heat with the indoor air in the indoor heat exchanger (40a) to evaporate. Finally, the refrigerant that has evaporated in the outdoor heat exchanger (15), the refrigerant that has evaporated in the auxiliary heat exchanger (52) of the auxiliary unit (50), and the refrigerant that has been in the first to the inner unit (7a) The refrigerant evaporated in the indoor heat exchanger (4〇a) is combined and sucked into the compressor (14). - Effect of the embodiment

在該實施形態中，室外機組（10)除了具有以下熱源機組 (10)的結構外，還一直具有與壓縮機（丨4)的吐出側聯通的第1氣側連接口（31) ^熱源機組（1〇)，係能夠應用到以下任一個空調裝置（5)中，即，一個空調裝置（5)，係藉由設置在熱源機組（10)的切換機構（17)對利用機組（7)的運轉狀熊進行切換，另一個空調裝置（5)係藉由給每一個利用機組 (7)設置的BS機組（60)所收納的切換機構（63, 64)對利用機組（7)的運轉狀態進行切換。若象第2形態的空調裝置（5)或者第3形態的空調裝置（5) 那樣，將室内迴路（8)的氣側端口連接在第3氣側連接口 (33)，將室内迴路（8)的液側端口連接在液側連接口（34)，同時將輔助機組（50)的輔助熱交換器（52)的液側端口連接在液側連接口（34)並將輔助熱交換器（52)的氣側端口有選擇地連接在第1氣側連接口（3丨）與第2氣側連接口（32)，則 I26149.doc 1342944 在第2切換機構（18)使第3氣側連接口⑴）與第i氣管（25)連接的狀態，進行《縮機（14)吐出的高壓冷媒通過第3氣側連接口 (33)供來且室内熱交換器(4〇)成為凝結器的暖氣運轉。若在該暖氣運轉中將已在室内熱交換器（40)中凝結的 :媒導入輔助熱交換器(52)’則已被導入的冷媒在輔助熱父換器（52)中蒸發後從第2氣側連接口（32)流入室外迴路 U2)並被吸入壓縮機（14)。而且’在第2切換機構（⑻使第3 氣側連接口（33)與第2氣管（26)聯通的狀態，則進行已哩在熱源側熱交換ϋ(15)中凝結的液態冷媒通過液側連接口 (34)供來且室内熱交換器（4〇)成為蒸發器的冷氣運轉。若在該冷氣運轉中將通過第以側連接口（31)觀縮機（Μ)吐出的冷媒導入輔助熱交換器(52) ’則已被導入的冷媒在輔助熱交換器（52)中凝結後與在熱源側熱交換器⑴）中凝結的液態冷媒一起被導入室内熱交換器(4〇)。已被導入室内熱交換Is (40)的冷媒在室内熱交換器（4〇)中蒸發，蒸發後的低冷媒從第3氣側連接口（33)流人室外迴路（12)並被吸入壓縮機（14)。是以，若有選擇地將輔助機組（5〇)的輔助熱交換器（52) 的氣側端口與第1氣側連接口（3丨）和第2氣側連接口幻連接，則進行暖氣運轉之際能夠將來自成為蒸發器的輔助熱父換器（52)的低壓氟態冷媒通過第2氣側連接口（32)導入壓縮機（14)中；進行冷氣運轉之際能夠將高壓的氣態冷媒通過第1氣側連接口（31)導入成為凝結器的輔助熱交換器（52) 中。因此，能夠對應於冷氣運轉與暖氣運轉兩種運轉使用 126149.doc -32- 輔助機組（50)。換句話說，該實施形態的室外機組（1〇)，能夠對應於冷氣運轉與暖氣運轉兩種運轉來連接辅助機組 (5〇)。該實施形態的輔助機組（5〇)構成為：無論在冷氣運轉，還是暖氣運轉都能夠進行用輔助熱交換器（52)來補償熱源側熱交換器（1 5)中的熱交換量的動作。《其它實施形態》如圖12所示，前述各個實施形態中，還可以由相互並列連接的複數室外機組（10，1〇，...）來構成空調裝置（5)。補充說明一下，以上實施形態為本質上最理想的示例，本發明並非要限制其應用物或者其用途範圍。 [產業上的利用可能性] 综上所述，本發明對經由聯絡配管連接在利用機組的冷凍裝置的熱源機組以及包括該熱源機組的冷凍裝置很有用。【圖式簡單說明】圖1是實施形態所關係之室外機組的概略構成圖。圊2是應用了實施形態所關係之室外機組的第丨形態的空調裝置的概略構成圖。圖3是顯示在應用了實施形態所關係之室外機組的第態的空調裝置中進行冷氣運轉時的動作的概略構成圖。圖4是顯示在應用了實施形態所關係之室外機組的第1形態的空調裝置中進行暖氣運轉時的動作的概略構成圖。圖5是應用了實施形態所關係之室外機組的第2形態的空調裝置的概略構成圖。 126U9.doc •33· 1342944 圖6疋顯示在應用了實施形態所關係之室外機組的第2形的空調震置中進行冷氣運轉時的動作的概略構成圖。圖7疋顯示在應用了實施形態所關係之室外機組的第2形態的空調裝置中進行暖氣運轉時的動作的概略構成圖。圖8疋應用了實施形態所關係之室外機組的第3形態的空調裝置的概略構成圖。圖9是顯示在應用了實施形態所關係之室外機組的第3形悲的空調裝置中進行冷氣運轉時的動作的概略構成圖。圖1 〇疋顯示在應用了實施形態所關係之室外機組的第3 形態的空調裝置中進行暖氣運轉時的動作的概略構成圖。圖11是顯示在應用了實施形態所關係之室外機組的第3 形態的空調裝置中進行冷暖氣運轉時的動作的概略構成圖。圖12是其他實施形態所關係之空調裝置的概略構成圖。圖13是具有習知之熱源機組的冷凍裝置的概略構成圖，圖13(A)是構成背景技術所記載之前者的冷凍裝置之情形的概略構成圊，圖13(B)是構成背景技術所記載之後者的冷凍裝置之情形的概略構成圖。圖14疋在應用了習知之熱源機組的冷凍裝置中對應加熱運轉連接上輔助機組的情形的概略構成圖。圖1 5是在應用了習知之熱源機組的冷凍裝置中對應冷卻轉連接上輔助機組的情形的概略構成圖。【主要元件符號說明】 5 空調裝置（冷凍裝置） 126149.doc 04- 1342944 7 室内機組（利用機組） 8 室内迴路（利用側迴路） 9 冷媒迴路 10 室外機組（熱源機組） 12 室外迴路（熱源側迴路） 14 壓縮機 15 室外熱交換器（熱源侧熱交換器） 17 第1四路換向閥（第1切換機構） 18 第2四路換向閥（第2切換機構） 25 第1氣管 26 第2氣管 27 第3氣管 28 液管 31 第1氣側連接口 32 第2氣側連接口 33 第3氣側連接口 34 液侧連接口 40 利用側熱交換器（利用側熱交換器） 41 減壓機構（室内膨脹閥） 50 輔助機組 52 輔助熱交換器 54 輔助切換機構 56 第1連接口 57 第2連接口 126149.doc -35- 1342944In this embodiment, the outdoor unit (10) has a configuration of the following heat source unit (10), and also has a first gas side connection port (31) that communicates with the discharge side of the compressor (丨4). (1〇), can be applied to any of the following air conditioning units (5), that is, an air conditioning unit (5) is provided to the utilization unit (7) by a switching mechanism (17) provided in the heat source unit (10) The operational bear is switched, and the other air conditioner (5) is operated by the switching mechanism (63, 64) accommodated by the BS unit (60) provided for each of the utilization units (7). The status is switched. When the air-side device (5) of the second embodiment or the air-conditioning device (5) of the third aspect is connected to the air-side port of the indoor circuit (8), the air-side port (33) is connected to the indoor air circuit (8). The liquid side port is connected to the liquid side connection port (34), and the liquid side port of the auxiliary heat exchanger (52) of the auxiliary unit (50) is connected to the liquid side connection port (34) and the auxiliary heat exchanger ( 52) The gas side port is selectively connected to the first gas side connection port (3丨) and the second gas side connection port (32), then I26149.doc 1342944 makes the third gas side in the second switching mechanism (18) When the connection port (1) is connected to the i-th gas pipe (25), the high-pressure refrigerant discharged from the reduction machine (14) is supplied through the third gas-side connection port (33), and the indoor heat exchanger (4〇) becomes a condenser. The heating is running. If the medium that has been condensed in the indoor heat exchanger (40) is introduced into the auxiliary heat exchanger (52) during the heating operation, the introduced refrigerant is evaporated in the auxiliary hot-following device (52). The gas side connection port (32) flows into the outdoor circuit U2) and is sucked into the compressor (14). In the second switching mechanism ((8), the third gas-side connection port (33) is connected to the second air pipe (26), and the liquid refrigerant passage liquid that has been condensed in the heat source side heat exchange port (15) is performed. The side connection port (34) is supplied and the indoor heat exchanger (4〇) is a cold air operation of the evaporator. When the air-conditioning operation is performed, the refrigerant discharged through the first side connection port (31) is introduced. The auxiliary heat exchanger (52)' is introduced into the indoor heat exchanger (4〇) together with the liquid refrigerant condensed in the heat source side heat exchanger (1) after being condensed in the auxiliary heat exchanger (52). . The refrigerant introduced into the indoor heat exchange Is (40) is evaporated in the indoor heat exchanger (4〇), and the evaporated low refrigerant flows from the third gas side connection port (33) to the outdoor circuit (12) and is sucked and compressed. Machine (14). Therefore, if the gas side port of the auxiliary heat exchanger (52) of the auxiliary unit (5 〇) is selectively connected to the first gas side connection port (3 丨) and the second gas side connection port, heating is performed. During operation, the low-pressure fluorine refrigerant from the auxiliary hot-following device (52) serving as the evaporator can be introduced into the compressor (14) through the second gas-side connection port (32), and the high-pressure gas can be supplied during the cooling operation. The gaseous refrigerant is introduced into the auxiliary heat exchanger (52) serving as a condenser through the first gas side connection port (31). Therefore, it is possible to use the 126149.doc -32- auxiliary unit (50) for both the air-conditioning operation and the heating operation. In other words, the outdoor unit (1〇) of this embodiment can be connected to the auxiliary unit (5〇) in accordance with both the air-conditioning operation and the heating operation. The auxiliary unit (5〇) of the embodiment is configured to be able to compensate the heat exchange amount in the heat source side heat exchanger (15) by the auxiliary heat exchanger (52) regardless of the air-conditioning operation or the heating operation. . <<Other Embodiments>> As shown in Fig. 12, in each of the above embodiments, the air conditioner (5) may be configured by a plurality of outdoor units (10, 1〇, ...) that are connected in parallel to each other. It should be noted that the above embodiments are essentially the most ideal examples, and the present invention is not intended to limit the application or the scope of its use. [Industrial Applicability] As described above, the present invention is useful for a heat source unit that is connected to a refrigeration unit using a unit via a communication pipe and a refrigeration unit including the heat source unit. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic configuration diagram of an outdoor unit according to an embodiment.圊2 is a schematic configuration diagram of an air conditioner in which the first embodiment of the outdoor unit according to the embodiment is applied. Fig. 3 is a schematic block diagram showing an operation when a cooling operation is performed in an air conditioner in a state in which the outdoor unit of the embodiment is applied. Fig. 4 is a schematic block diagram showing an operation at the time of heating operation in the air conditioner of the first embodiment in which the outdoor unit according to the embodiment is applied. Fig. 5 is a schematic configuration diagram of an air conditioner according to a second aspect of the outdoor unit to which the embodiment is applied. 126U9.doc • 33· 1342944 FIG. 6A is a schematic configuration diagram showing an operation when a cold air operation is performed in a second-type air-conditioning operation of the outdoor unit to which the embodiment is applied. Fig. 7A is a schematic block diagram showing an operation when a heating operation is performed in the air conditioner of the second embodiment in which the outdoor unit of the embodiment is applied. Fig. 8 is a schematic configuration diagram of an air conditioner according to a third aspect of the outdoor unit to which the embodiment is applied. FIG. 9 is a schematic block diagram showing an operation when a cooling operation is performed in the third air-conditioning apparatus of the outdoor unit to which the outdoor unit according to the embodiment is applied. FIG. 1 is a schematic block diagram showing an operation when a heating operation is performed in an air-conditioning apparatus according to a third aspect of the outdoor unit to which the embodiment is applied. FIG. 11 is a schematic block diagram showing an operation in the air-conditioning apparatus according to the third aspect of the outdoor unit to which the embodiment is applied. Fig. 12 is a schematic configuration diagram of an air conditioner according to another embodiment. Fig. 13 is a schematic configuration diagram of a refrigeration apparatus having a conventional heat source unit, Fig. 13(A) is a schematic configuration of a former refrigeration apparatus according to the prior art, and Fig. 13(B) is a background art. A schematic configuration diagram of the case of the subsequent freezing device. Fig. 14 is a schematic configuration diagram showing a state in which an auxiliary unit is connected to a heating unit in a refrigeration unit to which a conventional heat source unit is applied. Fig. 15 is a schematic configuration diagram showing a state in which the auxiliary unit is connected to the cooling unit in the refrigeration system to which the conventional heat source unit is applied. [Main component symbol description] 5 Air conditioner (freezer) 126149.doc 04- 1342944 7 Indoor unit (utilizing unit) 8 Indoor circuit (utilization side circuit) 9 Refrigerant circuit 10 Outdoor unit (heat source unit) 12 Outdoor circuit (heat source side Circuit) 14 Compressor 15 Outdoor heat exchanger (heat source side heat exchanger) 17 First four-way directional control valve (first switching mechanism) 18 Second four-way directional control valve (second switching mechanism) 25 First air pipe 26 Second air pipe 27 Third air pipe 28 Liquid pipe 31 First gas side connection port 32 Second gas side connection port 33 Third gas side connection port 34 Liquid side connection port 40 Use side heat exchanger (use side heat exchanger) 41 Pressure reducing mechanism (indoor expansion valve) 50 auxiliary unit 52 auxiliary heat exchanger 54 auxiliary switching mechanism 56 first connection port 57 second connection port 126149.doc -35- 1342944

58 第3連接口 63 第1電磁閥（運轉狀態切換機構） 64 第2電磁閥（運轉狀態切換機構） 126149.doc •36·58 3rd connection port 63 1st solenoid valve (operation status switching mechanism) 64 2nd solenoid valve (operation status switching mechanism) 126149.doc •36·

Claims

1342944 第96M〇621號專利申請案 -中文申請專利範圍替換本(100年3月）十、申請專利範圍： 1. -種冷隸置的熱源機組’具備連接有壓縮機⑽與熱源側熱父換器（15)的熱源側迴路（12): 在前述熱源側迴路（12)設有：第1氣側連接口（31)’其成為—直與前述壓縮機（14)的吐出側聯通的第1氣管（25)的端部，第2氣側連接口（32)，其成為—直與前述壓縮機（⑷的修吸入側聯通的第2氣管（26)的端部，第3氣側連接口（33)，其成為有選擇地與前述第1氣管 (25)與第2氣管（26)的其中之一聯通的第3氣管（27)的端部，液側連接口（ 3 4 )，其成為一直與前述熱源側熱交換器 (15)的液側端口聯通的液管（28)的端部，第1切換機構（17)，用來切換使前述熱源側熱交換器 (15)的氣側端口與前述壓縮機（14)的吐出側聯通的狀參態、及使前述熱源側熱交換器（15)的氣側端口與前述壓縮機（14)的吸入側聯通的狀態，以及第2切換機構（18)，用來切換前述第3氣管（27)與前述第1氣管（25)聯通的狀態、以及使前述第3氣管（27)與前述第2氣管（26)聯通的狀態。 2. —種冷凍裝置，具備：申請專利範圍第1項所記載之冷凍裝置的熱源機組（10)，其更具有利用機組（7)，該利用機組（7)具有從液側端口依序連接減壓機構（41)與利用側熱交換器（40)構成的利用側迴路（8): 126J49-1000302.doc 1342944 P年3月％修(¾正替換頁在則述熱源機組（10)的熱源側迴路（12)的苐3氣側連接口（33)與前述利用側迴路⑻的氣侧端口連接、該熱源側迴路（⑺的液側連接口（34)與該利用側迴路⑻的液側端口連接而構成的冷媒迴路⑼中’進行蒸氣壓縮循環。 3 ·如申請專利範圍第2項所記裁之冷凍裝置·· i更具備輔助機組（50)，該辅助機組（5〇)具有：輔助熱父換器（52)、-直與前述輔助熱交換器（52)的液側端口聯通的第1連接口（56)、有選擇地與前述辅助熱交換器 (52)的氣側端口聯通的第2連接口（57)與第3連接口（58)、以及輔助切換機構（54)，該辅助切換機構（54)用來切換使前述輔助熱交換器（52)的氣側端口與前述第2連接口 (57)聯通的狀態' 以及使前述辅助熱交換器⑼的氣側端口與前述第3連接口（58)聯通的狀態；前述冷媒迴路（9)中，前述第！連接口（56)與前述執源側迴路U2)的液側連接口連接，前述第2連接口（57)與前述熱源侧迴路〇2)的第丨氣側連接口（31)連接，前述第] 連接口（58)與前述熱源側迴路（12)的第2氣側連接口（叫連接。 4·如申請專利範圍第2或3項所記載之冷凍裝置：該冷;東裝置具備複數之前述利用機組（7); 在前述冷媒迴路（9)十，複數之利用側迴路（8)相對熱源側迴路（12)並聯連接。 … 5.如申請專利範圍第4項所記載之冷决裝置： 126149-1000302.doc 13429441342944 Patent Application No. 96M〇621—Replacement of Chinese Patent Application (March 100) X. Application Patent Range: 1. - A cold-sourced heat source unit with a compressor (10) and a heat source side hot father Heat source side circuit (12) of the converter (15): The heat source side circuit (12) is provided with: a first gas side connection port (31)' which is in communication with the discharge side of the compressor (14) The end of the first air pipe (25) and the second gas side connection port (32) are the ends of the second air pipe (26) that communicates with the compressor ((4) on the suction side of the compressor, and the third gas side a connection port (33) that is an end portion of the third air pipe (27) that selectively communicates with one of the first air pipe (25) and the second air pipe (26), and the liquid side connection port (34) And the end portion of the liquid pipe (28) that is always in communication with the liquid side port of the heat source side heat exchanger (15), and the first switching mechanism (17) for switching the heat source side heat exchanger (15) a state in which the gas side port communicates with the discharge side of the compressor (14), and a gas side port of the heat source side heat exchanger (15) a state in which the suction side of the compressor (14) is in communication, and a second switching mechanism (18) for switching a state in which the third air pipe (27) communicates with the first air pipe (25) and the third air pipe (27) A state in which the second air pipe (26) is connected to the second air pipe (26). 2. A refrigeration system comprising: the heat source unit (10) of the refrigeration system according to the first aspect of the patent application, which further comprises a utilization unit (7) The utilization unit (7) has a utilization side circuit (8) formed by sequentially connecting the pressure reducing mechanism (41) and the utilization side heat exchanger (40) from the liquid side port: 126J49-1000302.doc 1342944 PY March The 苐3 gas side connection port (33) of the heat source side circuit (12) of the heat source unit (10) is connected to the gas side port of the use side circuit (8), and the heat source side circuit ((7) The refrigerant circuit (9) in which the liquid-side connection port (34) is connected to the liquid-side port of the use-side circuit (8) performs a vapor compression cycle. 3 - The refrigeration device as described in the second paragraph of the patent application is provided. With auxiliary unit (50), the auxiliary unit (5〇) has: auxiliary heat a parent switch (52), a first connection port (56) that is in direct communication with the liquid side port of the auxiliary heat exchanger (52), and selectively communicates with a gas side port of the auxiliary heat exchanger (52) a second connection port (57) and a third connection port (58), and an auxiliary switching mechanism (54) for switching the gas side port of the auxiliary heat exchanger (52) and the foregoing (2) a state in which the connection port (57) is connected to communicate with the third port (58) of the auxiliary heat exchanger (9); a connection port (56) is connected to the liquid side connection port of the source side circuit U2), and the second connection port (57) is connected to the first gas side connection port (31) of the heat source side circuit 〇2). The connection port (58) and the second gas side connection port of the heat source side circuit (12) are connected. 4. The refrigeration device described in the second or third aspect of the patent application: the cold; the east device has a plurality of The utilization unit (7); the refrigerant circuit (9) ten, the plurality of utilization side circuits (8) are connected in parallel with the heat source side circuit (12). 5. The cold-closing device as described in claim 4 : 126149-1000302.doc 1342944

Θ年3月1修(¾)正替換頁該冷凍裝置具備對前述複數之利用機組（7)分別設置且具有運轉狀態切換機構（63，64)之切換機組（60)，該運轉狀態切換機構（63, 64)用來切換使各利用機組（7)的利用側迴路（8)的氣側端口與前述第2氣側連接口（32)聯通的狀態、以及使各利用機組（7)的利用側迴路（8)的氣側端口與前述第3氣側連接口（33)聯通的狀態。 126149-1000302.docThe refrigerating apparatus is provided with a switching unit (60) provided to each of the plurality of utilization units (7) and having an operation state switching mechanism (63, 64), which is an operation state switching mechanism. (63, 64) for switching the state in which the gas side port of the use side circuit (8) of each use unit (7) is in communication with the second gas side connection port (32), and the respective utilization units (7) The state in which the gas side port of the side circuit (8) is in communication with the third gas side connection port (33). 126149-1000302.doc