JP2009299959A - Refrigerating device - Google Patents

Refrigerating device Download PDF

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JP2009299959A
JP2009299959A JP2008153266A JP2008153266A JP2009299959A JP 2009299959 A JP2009299959 A JP 2009299959A JP 2008153266 A JP2008153266 A JP 2008153266A JP 2008153266 A JP2008153266 A JP 2008153266A JP 2009299959 A JP2009299959 A JP 2009299959A
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compressor
heat insulating
insulating material
sound
vacuum heat
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Yoshinobu Tsumura
宜伸 津村
Takayuki Setoguchi
隆之 瀬戸口
Takayuki Hyodo
孝之 兵頭
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Daikin Industries Ltd
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Daikin Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To significantly reduce labor hours in molding process of a vacuum heat insulating material, and to sufficiently secure heat insulating performance of a compressor as a whole. <P>SOLUTION: A surface of a storage container 28 of the compressor 30 is covered by the vacuum heat insulating material 16, and a surface of a terminal section 45 of the compressor 30 is covered by a molded heat insulating material 17 molded corresponding to the surface shape. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、圧縮機を覆う被覆部材を備えた冷凍装置に関するものである。   The present invention relates to a refrigeration apparatus including a covering member that covers a compressor.

従来より、圧縮機を覆う被覆部材を備えた冷凍装置が知られている。被覆部材は、断熱や防音の目的で設けられている。この種の冷凍装置では、圧縮機を断熱すると、圧縮機の表面からの放熱によって圧縮機の吐出冷媒の熱量が減少することを抑制される。圧縮機を防音すると、圧縮機の騒音が抑制される。   Conventionally, a refrigeration apparatus including a covering member that covers a compressor is known. The covering member is provided for the purpose of heat insulation and sound insulation. In this type of refrigeration apparatus, when the compressor is insulated, it is possible to suppress a decrease in the amount of heat of refrigerant discharged from the compressor due to heat radiation from the surface of the compressor. When the compressor is soundproofed, the noise of the compressor is suppressed.

前記断熱材として、例えば、特許文献1に示すような真空断熱材が知られている。この真空断熱材は、グラスウール等の芯材を外包部材によって被覆し、内部を大気圧よりも低い圧力に減圧して密閉することにより構成されている。   As the heat insulating material, for example, a vacuum heat insulating material as shown in Patent Document 1 is known. This vacuum heat insulating material is constituted by covering a core material such as glass wool with an outer packaging member, and sealing the inside by reducing the pressure to a pressure lower than atmospheric pressure.

前記真空断熱材は、芯材を外被材で覆ったのち、開口部を残して外被材の縁部を熱溶着によりシールし、開口部より外被材内を減圧して最後に開口部を熱溶着により密閉封止して形成する。
特開2007−182991号公報
The vacuum heat insulating material covers the core material with the outer covering material, seals the outer edge of the outer covering material by heat welding, leaving the opening, and finally reduces the pressure inside the outer covering material from the opening to open the opening. Is hermetically sealed by heat welding.
JP 2007-182991 A

ところで、冷凍装置の圧縮機を真空断熱材で覆う場合、真空断熱材の断熱性能を向上させるためには、圧縮機をできるだけ密閉した状態で覆うことが好ましく、さらに、圧縮機等と真空断熱材との間の空間をできるだけ小さくすることが好ましい。このため、圧縮機の収容容器の形状に合わせて加工した真空断熱材で圧縮機を覆う必要がある。   By the way, when the compressor of the refrigeration apparatus is covered with a vacuum heat insulating material, in order to improve the heat insulating performance of the vacuum heat insulating material, it is preferable to cover the compressor in a sealed state as much as possible. It is preferable to make the space between the two as small as possible. For this reason, it is necessary to cover a compressor with the vacuum heat insulating material processed according to the shape of the storage container of a compressor.

また、圧縮機の収容容器の上面又は側面には、電動機へ給電するための外部配線が接続されるターミナル部が取り付けられており、真空断熱材をターミナル部の表面形状に合わせて成形する必要がある。   Further, a terminal portion to which external wiring for supplying power to the electric motor is connected is attached to the upper surface or side surface of the container of the compressor, and it is necessary to form the vacuum heat insulating material according to the surface shape of the terminal portion. is there.

しかしながら、ターミナル部の表面形状や配線を通すための孔を形成するためには、それらの形状に合わせた芯材を形成したり、外被材を溶着する際に、複雑な形状に合わせた専用の治具を用いる必要があり、加工が困難である。このように、真空断熱材の成形が困難であることから、ターミナル部の表面を真空断熱材で覆ったとしても、ターミナル部と真空断熱材とに隙間が生じてしまい、この隙間から放熱されて断熱性能が十分に確保できないおそれがある。また、冷凍装置の仕様を変更する度に専用治具を製作しなければならず、コストアップの要因となるという問題がある。   However, in order to form the surface shape of the terminal part and the hole for passing the wiring, when forming the core material according to those shapes or welding the jacket material, it is dedicated to the complicated shape It is necessary to use this jig, and processing is difficult. As described above, since it is difficult to form the vacuum heat insulating material, even if the surface of the terminal portion is covered with the vacuum heat insulating material, a gap is generated between the terminal portion and the vacuum heat insulating material, and heat is radiated from this gap. There is a risk that sufficient heat insulation performance cannot be secured. In addition, there is a problem that a dedicated jig must be manufactured every time the specification of the refrigeration apparatus is changed, resulting in an increase in cost.

本発明は、かかる点に鑑みてなされたものであり、真空断熱材の成形加工の手間を大幅に低減するとともに、圧縮機全体としての断熱性能を十分に確保することにある。   The present invention has been made in view of such points, and it is intended to significantly reduce the labor of forming a vacuum heat insulating material and sufficiently ensure the heat insulating performance of the entire compressor.

上述した目的を達成するため、本発明は、断熱性能が高い真空断熱材で圧縮機の収容容器の表面を覆う一方、成形容易な成形断熱材でターミナル部の表面を覆うようにした。   In order to achieve the above-described object, the present invention covers the surface of the terminal portion with a molded heat insulating material that is easy to mold while covering the surface of the container of the compressor with a vacuum heat insulating material having high heat insulating performance.

具体的に、本発明は、圧縮機(30)と、該圧縮機(30)の周囲を覆う被覆部材(25)とを備えた冷凍装置を対象とし、次のような解決手段を講じた。   Specifically, the present invention is directed to a refrigeration apparatus including a compressor (30) and a covering member (25) that covers the periphery of the compressor (30), and has taken the following solutions.

すなわち、第1の発明は、前記被覆部材(25)は、前記圧縮機(30)の収容容器(28)表面を覆う真空断熱材(16)と、該圧縮機(30)の電源供給端子(45a)を含むターミナル部(45)の表面形状に対応して成形され且つ該ターミナル部(45)を覆う成形断熱材(17)とを有することを特徴とするものである。   That is, according to the first aspect of the present invention, the covering member (25) includes a vacuum heat insulating material (16) covering the surface of the storage container (28) of the compressor (30), and a power supply terminal ( And a molded heat insulating material (17) formed corresponding to the surface shape of the terminal portion (45) including 45a) and covering the terminal portion (45).

第1の発明では、圧縮機(30)の収容容器(28)表面を覆う真空断熱材(16)と、圧縮機(30)の電源供給端子(45a)を含むターミナル部(45)の表面形状に対応して成形され且つターミナル部(45)を覆う成形断熱材(17)とで被覆部材(25)が構成される。このため、成形加工の手間を大幅に低減するとともに、圧縮機(30)全体としての断熱性能を十分に確保することができる。   In 1st invention, the surface shape of the terminal part (45) containing the vacuum heat insulating material (16) which covers the container (28) surface of a compressor (30), and the power supply terminal (45a) of a compressor (30) The covering member (25) is composed of a molded heat insulating material (17) which is molded corresponding to the above and covers the terminal portion (45). For this reason, it is possible to greatly reduce the labor of the molding process and to sufficiently secure the heat insulating performance as the whole compressor (30).

具体的に、断熱性能の高い真空断熱材(16)のみでターミナル部(45)を含む圧縮機(30)全体を覆いたいと考えたとしても、ターミナル部(45)の複雑な表面形状に合わせて真空断熱材(16)を成形するのは、加工の手間やコストを考慮すると非常に困難である。   Specifically, even if you want to cover the entire compressor (30) including the terminal part (45) with only the vacuum insulation material (16) with high thermal insulation performance, it will match the complex surface shape of the terminal part (45). Therefore, it is very difficult to form the vacuum heat insulating material (16) in consideration of processing effort and cost.

これに対し、本発明では、表面形状が円筒状で比較的単純な圧縮機(30)の収容容器(28)の表面にのみ、成形が困難であるが断熱性能の高い真空断熱材(16)を巻き付けて覆うようにし、表面形状が複雑なターミナル部(45)の表面は、真空断熱材(16)よりも若干断熱性能が劣るが成形加工の容易な成形断熱材(17)で覆うようにしたから、圧縮機(30)全体としての被覆容易性と断熱性能とを両立させることができる。   On the other hand, in the present invention, a vacuum heat insulating material (16) that is difficult to form but has a high heat insulating performance only on the surface of the container (28) of the compressor (30) that is cylindrical and relatively simple in surface shape. So that the surface of the terminal part (45) with a complex surface shape is covered with a molded heat insulating material (17) that is slightly less heat-insulating than the vacuum heat insulating material (16) but easy to form. Therefore, it is possible to achieve both easy coating and heat insulation performance as the whole compressor (30).

第2の発明は、第1の発明において、
前記成形断熱材(17)は、発泡成形材で構成されていることを特徴とするものである。
According to a second invention, in the first invention,
The molded heat insulating material (17) is made of a foam molded material.

第2の発明では、成形断熱材(17)が発泡成形材で構成される。このため、ターミナル部(45)の表面に成形断熱材(17)が隙間無く充填され、より確実に断熱することができる。   In 2nd invention, a shaping | molding heat insulating material (17) is comprised with a foaming molding material. Therefore, the surface of the terminal portion (45) is filled with the molded heat insulating material (17) without any gap, and heat insulation can be performed more reliably.

第3の発明は、第1又は第2の発明において、
前記真空断熱材(16)の外側には、吸音材(18)が配設されていることを特徴とするものである。
According to a third invention, in the first or second invention,
A sound absorbing material (18) is disposed outside the vacuum heat insulating material (16).

第3の発明では、真空断熱材(16)の外側に吸音材(18)が配設される。このため、圧縮機(30)の振動や騒音が真空断熱材(16)を通過すると、その振動や騒音が吸音材(18)で吸収され、装置外部に振動や騒音が伝搬されることをより確実に抑制でき、断熱性能及び吸音性能の確保を実現することができる。   In the third invention, the sound absorbing material (18) is disposed outside the vacuum heat insulating material (16). For this reason, when vibration and noise of the compressor (30) pass through the vacuum heat insulating material (16), the vibration and noise are absorbed by the sound absorbing material (18), and the vibration and noise are propagated outside the device. It is possible to reliably suppress the heat insulation performance and the sound absorption performance.

第4の発明は、第3の発明において、
前記真空断熱材(16)と前記吸音材(18)との間には、空気層(15)が形成されていることを特徴とするものである。
According to a fourth invention, in the third invention,
An air layer (15) is formed between the vacuum heat insulating material (16) and the sound absorbing material (18).

第4の発明では、真空断熱材(16)と吸音材(18)との間に空気層(15)が形成される。このため、圧縮機(30)の振動や騒音が真空断熱材(16)を通過すると、その振動や騒音が空気層(15)で減衰された後で吸音材(18)で吸収され、装置外部に振動や騒音が伝搬されることをより確実に抑制でき、断熱性能及び吸音性能の確保を実現することができる。   In the fourth invention, an air layer (15) is formed between the vacuum heat insulating material (16) and the sound absorbing material (18). For this reason, when the vibration and noise of the compressor (30) pass through the vacuum heat insulating material (16), the vibration and noise are attenuated by the air layer (15) and then absorbed by the sound absorbing material (18). Therefore, it is possible to more reliably suppress vibration and noise from being transmitted, and to ensure heat insulation performance and sound absorption performance.

第5の発明は、第3又は第4の発明において、
前記吸音材(18)の外側には、遮音材(19)が配設されていることを特徴とするものである。
A fifth invention is the third or fourth invention, wherein
A sound insulating material (19) is disposed outside the sound absorbing material (18).

第5の発明では、吸音材(18)の外側に遮音材(19)が配設される。このため、圧縮機(30)の振動や騒音が吸音材(18)で十分に吸収しきれなかったとしても、吸音材(18)の外側に配設した遮音材(19)で遮音することができ、装置外部に振動や騒音が伝搬されることをより確実に抑制できる。   In the fifth invention, the sound insulating material (19) is disposed outside the sound absorbing material (18). For this reason, even if the vibration and noise of the compressor (30) cannot be sufficiently absorbed by the sound absorbing material (18), the sound insulating material (19) disposed outside the sound absorbing material (18) can be sound-insulated. It is possible to more reliably suppress the propagation of vibration and noise to the outside of the apparatus.

本発明によれば、成形が困難であるが断熱性能の高い真空断熱材(16)で圧縮機(30)の収容容器(28)表面を覆う一方、真空断熱材(16)よりも若干断熱性能は劣るが成形容易な成形断熱材(17)でターミナル部(45)の表面を覆うようにしたから、成形加工の手間を大幅に低減するとともに、圧縮機(30)全体としての断熱性能を十分に確保することができる。   According to the present invention, the surface of the container (28) of the compressor (30) is covered with the vacuum heat insulating material (16) which is difficult to form but has high heat insulating performance, but slightly heat insulating performance than the vacuum heat insulating material (16). Although the surface of the terminal part (45) is covered with a molding insulation material (17) that is inferior but easy to mold, the labor of molding is greatly reduced and the insulation performance of the compressor (30) as a whole is sufficient. Can be secured.

以下、本発明の実施形態を図面に基づいて説明する。なお、以下の好ましい実施形態の説明は、本質的に例示に過ぎず、本発明、その適用物或いはその用途を制限することを意図するものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use.

図1は、本発明の実施形態に係る冷凍装置の構成を示す概略図である。この冷凍装置(10)は、空気調和装置(10)として構成されている。図1に示すように、この空気調和装置(10)は、室外機(11)と室内機(13)とを備えている。   FIG. 1 is a schematic diagram illustrating a configuration of a refrigeration apparatus according to an embodiment of the present invention. The refrigeration apparatus (10) is configured as an air conditioner (10). As shown in FIG. 1, the air conditioner (10) includes an outdoor unit (11) and an indoor unit (13).

前記室外機(11)のケーシング(35)内には、空気調和装置(10)の構成機器として、圧縮機(30)、アキュームレータ(31)、四路切換弁(33)、室外熱交換器(34)、室外膨張弁(36)、及び室外ファン(12)が設けられている。室内機(13)のケーシング(38)内には、空気調和装置(10)の構成機器として、室内熱交換器(37)及び室内ファン(14)が設けられている。これらの空気調和装置(10)の構成機器は、冷媒が充填された冷媒回路(20)に接続されている。この冷媒回路(20)では、冷媒を循環させて蒸気圧縮冷凍サイクルが行われる。   The casing (35) of the outdoor unit (11) includes a compressor (30), an accumulator (31), a four-way switching valve (33), an outdoor heat exchanger ( 34), an outdoor expansion valve (36), and an outdoor fan (12). In the casing (38) of the indoor unit (13), an indoor heat exchanger (37) and an indoor fan (14) are provided as components of the air conditioner (10). The components of the air conditioner (10) are connected to a refrigerant circuit (20) filled with a refrigerant. In the refrigerant circuit (20), the vapor compression refrigeration cycle is performed by circulating the refrigerant.

前記圧縮機(30)は、高圧ドーム型圧縮機として構成されている。圧縮機(30)の吐出側は、吐出管(21)を介して四路切換弁(33)の第1ポート(P1)に接続されている。圧縮機(30)の吸入側は、吸入管(22)を介してアキュームレータ(31)の底面に接続されている。   The compressor (30) is configured as a high-pressure dome type compressor. The discharge side of the compressor (30) is connected to the first port (P1) of the four-way switching valve (33) via the discharge pipe (21). The suction side of the compressor (30) is connected to the bottom surface of the accumulator (31) via the suction pipe (22).

前記アキュームレータ(31)は、密閉容器状に構成されている。アキュームレータ(31)は、圧縮機(30)に近接して配置されている。アキュームレータ(31)の上面には、接続配管(23)の一端が接続されている。接続配管(23)の他端は、四路切換弁(33)の第3ポート(P3)に接続されている。圧縮機(30)とアキュームレータ(31)とは、被覆部材(25)によって覆われている。被覆部材(25)についての詳細は後述する。   The accumulator (31) is formed in a closed container shape. The accumulator (31) is disposed close to the compressor (30). One end of the connection pipe (23) is connected to the upper surface of the accumulator (31). The other end of the connection pipe (23) is connected to the third port (P3) of the four-way switching valve (33). The compressor (30) and the accumulator (31) are covered with a covering member (25). Details of the covering member (25) will be described later.

前記室外熱交換器(34)は、クロスフィン式のフィン・アンド・チューブ型の熱交換器によって構成されている。室外熱交換器(34)の近傍には、室外熱交換器(34)に室外空気を送る室外ファン(12)が配置されている。この室外熱交換器(34)では、室外空気と冷媒との間で熱交換が行われる。室外熱交換器(34)の一端は、四路切換弁(33)の第2ポート(P2)に接続されている。室外熱交換器(34)の他端は、室外膨張弁(36)に接続されている。   The outdoor heat exchanger (34) is constituted by a cross fin type fin-and-tube heat exchanger. An outdoor fan (12) that sends outdoor air to the outdoor heat exchanger (34) is disposed in the vicinity of the outdoor heat exchanger (34). In the outdoor heat exchanger (34), heat is exchanged between the outdoor air and the refrigerant. One end of the outdoor heat exchanger (34) is connected to the second port (P2) of the four-way switching valve (33). The other end of the outdoor heat exchanger (34) is connected to the outdoor expansion valve (36).

前記室内熱交換器(37)は、クロスフィン式のフィン・アンド・チューブ型の熱交換器によって構成されている。室内熱交換器(37)の近傍には、室内熱交換器(37)に室内空気を送る室内ファン(14)が配置されている。この室内熱交換器(37)では、室内空気と冷媒との間で熱交換が行われる。室内熱交換器(37)の一端は、四路切換弁(33)の第4ポート(P4)に接続されている。室内熱交換器(37)の他端は、室外膨張弁(36)に接続されている。   The indoor heat exchanger (37) is a cross-fin fin-and-tube heat exchanger. An indoor fan (14) for sending room air to the indoor heat exchanger (37) is disposed in the vicinity of the indoor heat exchanger (37). In the indoor heat exchanger (37), heat is exchanged between the indoor air and the refrigerant. One end of the indoor heat exchanger (37) is connected to the fourth port (P4) of the four-way switching valve (33). The other end of the indoor heat exchanger (37) is connected to the outdoor expansion valve (36).

前記四路切換弁(33)は、第1ポート(P1)と第2ポート(P2)が互いに連通して第3ポート(P3)と第4ポート(P4)が互いに連通する第1状態(図1に実線で示す状態)と、第1ポート(P1)と第4ポート(P4)が互いに連通して第2ポート(P2)と第3ポート(P3)が互いに連通する第2状態(図1に破線で示す状態)とが切り換え自在になっている。   The four-way selector valve (33) is in a first state in which the first port (P1) and the second port (P2) communicate with each other and the third port (P3) and the fourth port (P4) communicate with each other (see FIG. 1 and a second state (FIG. 1) in which the first port (P1) and the fourth port (P4) communicate with each other and the second port (P2) and the third port (P3) communicate with each other. The state indicated by a broken line in FIG.

前記空気調和装置(10)では、冷房運転と暖房運転とが選択的に行われる。冷房運転時には、四路切換弁(33)が第1状態に設定される。冷房運転中の冷媒回路(20)では、室外熱交換器(34)が放熱器として動作し、室内熱交換器(37)が蒸発器として動作することによって、蒸気圧縮冷凍サイクルが行われる。   In the air conditioner (10), a cooling operation and a heating operation are selectively performed. During the cooling operation, the four-way selector valve (33) is set to the first state. In the refrigerant circuit (20) during the cooling operation, the outdoor heat exchanger (34) operates as a radiator, and the indoor heat exchanger (37) operates as an evaporator, so that a vapor compression refrigeration cycle is performed.

一方、暖房運転時には、四路切換弁(33)が第2状態に設定される。暖房運転中の冷媒回路(20)では、室内熱交換器(37)が放熱器として動作し、室外熱交換器(34)が蒸発器として動作することによって、蒸気圧縮冷凍サイクルが行われる。   On the other hand, during the heating operation, the four-way selector valve (33) is set to the second state. In the refrigerant circuit (20) during the heating operation, the indoor heat exchanger (37) operates as a radiator and the outdoor heat exchanger (34) operates as an evaporator, so that a vapor compression refrigeration cycle is performed.

−圧縮機、アキュームレータの構造−
次に、圧縮機(30)及びアキュームレータ(31)の構造について説明する。圧縮機(30)は、図2に示すように、冷媒を圧縮する圧縮機構(30b)と、圧縮機構(30b)を駆動させる電動機(30a)と、圧縮機構(30b)と電動機(30a)とを収容する収容容器(28)とを備えている。
−Structure of compressor and accumulator−
Next, the structure of the compressor (30) and the accumulator (31) will be described. As shown in FIG. 2, the compressor (30) includes a compression mechanism (30b) that compresses the refrigerant, an electric motor (30a) that drives the compression mechanism (30b), a compression mechanism (30b), and an electric motor (30a) And a storage container (28).

前記収容容器(28)は、両端が閉塞された円筒容器状に形成されている。収容容器(28)の底面には、板状の支持部材(29)が例えば3つ連結されている。これらの支持部材(29)は、収容容器(28)の周方向に等間隔で配置されている。   The storage container (28) is formed in a cylindrical container shape whose both ends are closed. For example, three plate-like support members (29) are connected to the bottom surface of the storage container (28). These support members (29) are arranged at equal intervals in the circumferential direction of the container (28).

また、前記室外機(11)のケーシング(35)の底板(43)上面には、各支持部材(29)に対応する位置に防振材(39)がそれぞれ取り付けられていて、締結ボルト(41)によって支持部材(29)が防振材(39)に締結されることで、圧縮機(30)が底板(43)に固定されている。防振材(39)は、例えばゴムマウント等の弾性材料で構成されている。   Further, on the upper surface of the bottom plate (43) of the casing (35) of the outdoor unit (11), a vibration isolating material (39) is attached to a position corresponding to each support member (29), and a fastening bolt (41 ), The compressor (30) is fixed to the bottom plate (43) by fastening the support member (29) to the vibration isolator (39). The vibration isolator (39) is made of an elastic material such as a rubber mount, for example.

前記アキュームレータ(31)は、両端が閉塞された円筒状の容器として構成されている。アキュームレータ(31)の外径及び高さは、圧縮機(30)の収容容器(28)に比べて小さく設定されている。アキュームレータ(31)は、その軸方向が圧縮機(30)の収容容器(28)の軸方向と略平行で且つ圧縮機(30)に近接する状態で、取付部材(40)を介して圧縮機(30)に取り付けられている。   The accumulator (31) is configured as a cylindrical container closed at both ends. The outer diameter and height of the accumulator (31) are set smaller than the container (28) of the compressor (30). The accumulator (31) is connected to the compressor via the mounting member (40) with its axial direction being substantially parallel to the axial direction of the container (28) of the compressor (30) and close to the compressor (30). (30) is attached.

前記圧縮機(30)の収容容器(28)の上面には、ターミナル部(45)が取り付けられている。このターミナル部(45)は、外部から圧縮機(30)の電動機(30a)に対して電力を供給するためのものである。具体的に、ターミナル部(45)は、電源供給端子(45a)と外部配線(45b)とを有し、外部配線(45b)から供給された電力が電源供給端子(45a)を介して電動機(30a)へ給電されるようになっている。   A terminal portion (45) is attached to the upper surface of the container (28) of the compressor (30). This terminal part (45) is for supplying electric power to the electric motor (30a) of the compressor (30) from the outside. Specifically, the terminal portion (45) has a power supply terminal (45a) and an external wiring (45b), and the electric power supplied from the external wiring (45b) passes through the power supply terminal (45a) ( Power is supplied to 30a).

前記圧縮機(30)の収容容器(28)の側面の上寄りの位置には、吐出管(21)が接続されている。吐出管(21)は、水平方向に延びてから上側に垂直に屈曲して延びている。また、収容容器(28)の側面の下寄りの位置には吸入管(22)が接続されている。吸入管(22)は、水平方向に延びてから上側に垂直に屈曲して、アキュームレータ(31)の底面に接続されている。アキュームレータ(31)の上面には、接続配管(23)が接続されている。   A discharge pipe (21) is connected to an upper position of the side surface of the container (28) of the compressor (30). The discharge pipe (21) extends in the horizontal direction and then bends vertically upward. Further, a suction pipe (22) is connected to a lower position on the side surface of the storage container (28). The suction pipe (22) extends in the horizontal direction and then bends vertically upward and is connected to the bottom surface of the accumulator (31). A connection pipe (23) is connected to the upper surface of the accumulator (31).

−被覆部材の構造−
次に、被覆部材(25)の構造について説明する。圧縮機(30)及びアキュームレータ(31)の周囲は、被覆部材(25)によって覆われている。この被覆部材(25)は、図2に示すように、真空断熱材(16)及び成形断熱材(17)で構成された断熱層と、断熱層よりも外側に配設され且つ吸音材(18)で構成された吸音層と、吸音層よりも外側に配設され且つ遮音材(19)で構成された遮音層とを有している。被覆部材(25)は、断熱層、吸音層、及び遮音層の3層構造になっており、吸音材(18)は遮音材(19)の内面に貼着されている。
-Structure of the covering member-
Next, the structure of the covering member (25) will be described. The periphery of the compressor (30) and the accumulator (31) is covered with a covering member (25). As shown in FIG. 2, the covering member (25) includes a heat insulating layer composed of a vacuum heat insulating material (16) and a molded heat insulating material (17), an outer side of the heat insulating layer, and a sound absorbing material (18 ) And a sound insulation layer disposed outside the sound absorption layer and made of a sound insulation material (19). The covering member (25) has a three-layer structure of a heat insulating layer, a sound absorbing layer, and a sound insulating layer, and the sound absorbing material (18) is adhered to the inner surface of the sound insulating material (19).

前記断熱層は、圧縮機(30)の表面に接触するように収容容器(28)の外周面に沿って配設された真空断熱材(16)と、ターミナル部(45)の表面形状に対応して成形され且つターミナル部(45)を覆う成形断熱材(17)とで構成されている。   The heat insulation layer corresponds to the surface shape of the vacuum insulation (16) and the terminal part (45) arranged along the outer peripheral surface of the container (28) so as to contact the surface of the compressor (30) And a molded heat insulating material (17) that covers the terminal portion (45).

前記真空断熱材(16)は、グラスウール等の芯材を外包部材によって被覆し、内部を大気圧よりも低い圧力に減圧して密閉することにより構成されている。また、成形断熱材(17)は、例えば、成形加工が容易な発泡ウレタン等の発泡成形材で構成され、ターミナル部(45)の表面形状に対応して成形されている。なお、この成形断熱材(17)には、難燃性の材料を用いる必要がある。   The said vacuum heat insulating material (16) is comprised by coat | covering core materials, such as glass wool, with an outer packaging member, and reducing the inside to a pressure lower than atmospheric pressure and sealing. The molded heat insulating material (17) is made of, for example, a foamed molding material such as urethane foam that is easily molded, and is molded corresponding to the surface shape of the terminal portion (45). In addition, it is necessary to use a flame-retardant material for this molded heat insulating material (17).

このような構成とすれば、成形加工の手間を大幅に低減するとともに、圧縮機(30)全体としての断熱性能を十分に確保することができる。   With such a configuration, it is possible to greatly reduce the time and effort of the molding process and to sufficiently ensure the heat insulating performance as the compressor (30) as a whole.

具体的に、断熱性能の高い真空断熱材(16)のみでターミナル部(45)を含む圧縮機(30)全体を覆いたいと考えたとしても、ターミナル部(45)の複雑な表面形状に合わせて真空断熱材(16)を成形したり、配線を通す孔を形成したりするのは、加工の手間やコストを考慮すると非常に困難である。   Specifically, even if you want to cover the entire compressor (30) including the terminal part (45) with only the vacuum insulation material (16) with high thermal insulation performance, it will match the complex surface shape of the terminal part (45). Therefore, it is very difficult to form the vacuum heat insulating material (16) or to form the hole through which the wiring passes, considering the processing effort and cost.

これに対し、本発明では、表面形状が円筒状で比較的単純な圧縮機(30)の収容容器(28)の表面にのみ、成形が困難であるが断熱性能の高い真空断熱材(16)を巻き付けて覆うようにし、表面形状が複雑なターミナル部(45)の表面は、真空断熱材(16)よりも若干断熱性能が劣るが成形の容易な成形断熱材(17)で覆うようにしたから、圧縮機(30)全体としての被覆容易性と断熱性能とを両立させることができる。   On the other hand, in the present invention, a vacuum heat insulating material (16) that is difficult to form but has a high heat insulating performance only on the surface of the container (28) of the compressor (30) that is cylindrical and relatively simple in surface shape. The surface of the terminal part (45), which has a complicated surface shape, was covered with a molded heat insulating material (17) that was slightly less heat-insulating than the vacuum heat insulating material (16) but was easy to mold. Therefore, it is possible to achieve both easy coating and heat insulation performance as a whole of the compressor (30).

また、前記成形断熱材(17)を発泡成形材で構成することで、ターミナル部(45)の表面に成形断熱材(17)を隙間無く充填することができ、より確実に断熱することができる。   Further, by forming the molded heat insulating material (17) with a foam molded material, the surface of the terminal portion (45) can be filled with the molded heat insulating material (17) without any gap, and heat insulation can be performed more reliably. .

吸音層を構成する吸音材(18)は、グラスウールによって構成されている。なお、吸音材(18)には、グラスウール以外の材料(例えば、フェルト、ロックウール)を用いてもよい。吸音材(18)には、通気性のよい材料が適している。また、遮音層を構成する遮音材(19)は、樹脂によって構成されている。なお、遮音材(19)には、例えばゴム等の比較的密度が高い部材を用いてもよい。   The sound absorbing material (18) constituting the sound absorbing layer is made of glass wool. In addition, you may use materials (for example, felt, rock wool) other than glass wool for a sound-absorbing material (18). For the sound absorbing material (18), a material having good air permeability is suitable. The sound insulating material (19) constituting the sound insulating layer is made of resin. For the sound insulating material (19), a member having a relatively high density such as rubber may be used.

そして、前記吸音材(18)及び遮音材(19)の内周形状は、圧縮機(30)及びアキュームレータ(31)を一体で鉛直方向に投影した形状よりも一回り大きくなっている。被覆部材(25)は、圧縮機(30)及びアキュームレータ(31)に被せてケーシング(35)の底板(43)に自立させた状態で固定されている。被覆部材(25)が設置されると、圧縮機(30)及びアキュームレータ(31)が、被覆部材(25)によって一括して囲われた状態になる。この状態では、圧縮機(30)の収容容器(28)の外周面に沿って配設された真空断熱材(16)と吸音材(18)との間には、空気層(15)が形成される。   The inner peripheral shape of the sound absorbing material (18) and the sound insulating material (19) is one size larger than the shape in which the compressor (30) and the accumulator (31) are integrally projected in the vertical direction. The covering member (25) is fixed in a state of being covered with the compressor (30) and the accumulator (31) and being self-supporting on the bottom plate (43) of the casing (35). When the covering member (25) is installed, the compressor (30) and the accumulator (31) are collectively surrounded by the covering member (25). In this state, an air layer (15) is formed between the vacuum heat insulating material (16) and the sound absorbing material (18) disposed along the outer peripheral surface of the storage container (28) of the compressor (30). Is done.

このため、吸音材(18)及び遮音材(19)には、圧縮機(30)の振動が直接的に伝搬されないので、圧縮機(30)の振動が吸音材(18)及び遮音材(19)に直接的に伝搬される場合に比べて、吸音材(18)及び遮音材(19)に伝搬される振動が大幅に小さくなる。   For this reason, since the vibration of the compressor (30) is not directly transmitted to the sound absorbing material (18) and the sound insulating material (19), the vibration of the compressor (30) is not affected by the sound absorbing material (18) and the sound insulating material (19 ), The vibration propagated to the sound absorbing material (18) and the sound insulating material (19) is significantly smaller than the case of being directly propagated to the sound absorbing material.

なお、本実施形態では、圧縮機(30)の収容容器(28)の上面にターミナル部(45)を取り付けた構成について説明したが、この形態に限定するものではなく、例えば、図3に示すように、収容容器(28)の側面にターミナル部(45)を取り付け、ターミナル部(45)を成形断熱材(17)で覆うようにした構成でもよい。   In addition, although this embodiment demonstrated the structure which attached the terminal part (45) to the upper surface of the storage container (28) of a compressor (30), it is not limited to this form, For example, it shows in FIG. Thus, the terminal part (45) may be attached to the side surface of the storage container (28), and the terminal part (45) may be covered with the molded heat insulating material (17).

前記被覆部材(25)の吸音材(18)及び遮音材(19)は、圧縮機(30)及びアキュームレータ(31)の側方を覆う側壁部材(26)と、圧縮機(30)及びアキュームレータ(31)の上側を覆う天井部材(27)とから構成されている。   The sound absorbing material (18) and the sound insulating material (19) of the covering member (25) include a side wall member (26) that covers the sides of the compressor (30) and the accumulator (31), a compressor (30), and an accumulator ( 31) and a ceiling member (27) covering the upper side.

前記天井部材(27)は、円板状に形成されている。天井部材(27)には、吐出管(21)を挿通させる第1挿通孔(27a)と、接続配管(23)を挿通させる第2挿通孔(27b)とが形成されている。   The ceiling member (27) is formed in a disc shape. The ceiling member (27) is formed with a first insertion hole (27a) through which the discharge pipe (21) is inserted and a second insertion hole (27b) through which the connection pipe (23) is inserted.

本実施形態に係る冷凍装置(10)では、圧縮機(30)の駆動により生じる熱が真空断熱材(16)及び成形断熱材(17)で断熱される。また、圧縮機(30)で生じた音は、真空断熱材(16)を通過して空気層(15)に向かう。空気層(15)では、音のエネルギーの一部が減衰されることで、音が吸音される。続いて、吸音材(18)では、空気層(15)を通過した音のエネルギーの一部が、吸音材やその空隙の空気の熱エネルギーに変換されることで、音が吸収される。遮音材(19)では、吸音材(18)を通過した音の一部が反射されることで遮音される。   In the refrigeration apparatus (10) according to the present embodiment, heat generated by driving the compressor (30) is insulated by the vacuum heat insulating material (16) and the molded heat insulating material (17). Further, the sound generated by the compressor (30) passes through the vacuum heat insulating material (16) and travels to the air layer (15). In the air layer (15), sound is absorbed by a part of sound energy being attenuated. Subsequently, in the sound absorbing material (18), part of the sound energy that has passed through the air layer (15) is converted into the heat energy of the sound absorbing material and the air in the air gap, thereby absorbing the sound. The sound insulating material (19) is insulated by reflecting part of the sound that has passed through the sound absorbing material (18).

このように、圧縮機(30)の駆動により生じる熱が真空断熱材(16)及び成形断熱材(17)で断熱され、圧縮機(30)で生じる音が、空気層(15)と吸音材(18)で吸音され、遮音材(19)で遮音される。従って、圧縮機(30)が発する音が、被覆部材(25)の外側へ伝搬するまでに大幅に低減される。また、圧縮機(30)が真空断熱材(16)及び成形断熱材(17)によって覆われている。このため、圧縮機(30)の表面からの放熱によって圧縮機(30)の吐出冷媒の熱量が減少することを抑制されるので、運転効率を向上させることができる。   Thus, the heat generated by the drive of the compressor (30) is insulated by the vacuum heat insulating material (16) and the molded heat insulating material (17), and the sound generated by the compressor (30) becomes the air layer (15) and the sound absorbing material. The sound is absorbed by (18) and is sound-insulated by the sound insulating material (19). Therefore, the sound emitted from the compressor (30) is greatly reduced before it propagates outside the covering member (25). The compressor (30) is covered with a vacuum heat insulating material (16) and a molded heat insulating material (17). For this reason, since it is suppressed that the calorie | heat amount of the discharge refrigerant | coolant of a compressor (30) reduces by the heat radiation from the surface of a compressor (30), operating efficiency can be improved.

以上のように、本実施形態に係る冷凍装置(10)によれば、成形が困難であるが断熱性能の高い真空断熱材(16)で圧縮機(30)の収容容器(28)表面を覆う一方、真空断熱材(16)よりも若干断熱性能は劣るが成形容易な成形断熱材(17)でターミナル部(45)の表面を覆うようにしたから、成形加工の手間を大幅に低減するとともに、圧縮機(30)全体としての断熱性能を十分に確保することができる。   As described above, according to the refrigeration apparatus (10) according to the present embodiment, the surface of the container (28) of the compressor (30) is covered with the vacuum heat insulating material (16) that is difficult to be molded but has high heat insulating performance. On the other hand, the heat insulation performance is slightly inferior to that of the vacuum heat insulating material (16), but the molding heat insulating material (17) covers the surface of the terminal part (45). The heat insulation performance as a whole of the compressor (30) can be sufficiently ensured.

以上説明したように、本発明は、真空断熱材の成形加工の手間を大幅に低減するとともに、圧縮機全体としての断熱性能を十分に確保することができるという実用性の高い効果が得られることから、きわめて有用で産業上の利用可能性は高い。   As described above, the present invention can greatly reduce the labor of forming the vacuum heat insulating material and obtain a highly practical effect that can sufficiently ensure the heat insulating performance of the entire compressor. Therefore, it is extremely useful and has high industrial applicability.

本発明の実施形態に係る冷凍装置の概略構成図である。1 is a schematic configuration diagram of a refrigeration apparatus according to an embodiment of the present invention. 本実施形態に係る冷凍装置の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the structure of the freezing apparatus which concerns on this embodiment. 本実施形態に係る冷凍装置の別の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows another structure of the freezing apparatus which concerns on this embodiment.

符号の説明Explanation of symbols

10 空気調和装置(冷凍装置)
15 空気層
16 真空断熱材
17 成形断熱材
18 吸音材
19 遮音材
25 被覆部材
28 収容容器
30 圧縮機
45 ターミナル部
45a 電源供給端子
10 Air conditioning equipment (refrigeration equipment)
15 Air layer
16 Vacuum insulation
17 Molded insulation
18 Sound absorbing material
19 Sound insulation material
25 Covering member
28 containment
30 Compressor
45 Terminal section
45a Power supply terminal

Claims (5)

圧縮機(30)と、該圧縮機(30)の周囲を覆う被覆部材(25)とを備えた冷凍装置であって、
前記被覆部材(25)は、前記圧縮機(30)の収容容器(28)表面を覆う真空断熱材(16)と、該圧縮機(30)の電源供給端子(45a)を含むターミナル部(45)の表面形状に対応して成形され且つ該ターミナル部(45)を覆う成形断熱材(17)とを有することを特徴とする冷凍装置。
A refrigeration apparatus comprising a compressor (30) and a covering member (25) covering the periphery of the compressor (30),
The covering member (25) includes a vacuum heat insulating material (16) that covers the surface of the storage container (28) of the compressor (30), and a terminal portion (45 that includes a power supply terminal (45a) of the compressor (30). And a molded heat insulating material (17) covering the terminal portion (45).
請求項1において、
前記成形断熱材(17)は、発泡成形材で構成されていることを特徴とする冷凍装置。
In claim 1,
The refrigeration apparatus, wherein the molded heat insulating material (17) is made of a foam molded material.
請求項1又は2において、
前記真空断熱材(16)の外側には、吸音材(18)が配設されていることを特徴とする冷凍装置。
In claim 1 or 2,
A refrigerating apparatus, wherein a sound absorbing material (18) is disposed outside the vacuum heat insulating material (16).
請求項3において、
前記真空断熱材(16)と前記吸音材(18)との間には、空気層(15)が形成されていることを特徴とする冷凍装置。
In claim 3,
An air layer (15) is formed between the vacuum heat insulating material (16) and the sound absorbing material (18).
請求項3又は4において、
前記吸音材(18)の外側には、遮音材(19)が配設されていることを特徴とする冷凍装置。
In claim 3 or 4,
A refrigeration apparatus, wherein a sound insulating material (19) is disposed outside the sound absorbing material (18).
JP2008153266A 2008-06-11 2008-06-11 Refrigerating device Pending JP2009299959A (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327093A (en) * 1991-04-26 1992-11-16 Kubota Corp Sound arrester for head cover of engine
JPH0628210U (en) * 1992-09-08 1994-04-15 三菱自動車工業株式会社 Vertical exhaust system for automobiles
JPH08193590A (en) * 1995-01-17 1996-07-30 Matsushita Electric Ind Co Ltd Heat insulating device of scroll compressor
JPH09287782A (en) * 1996-04-22 1997-11-04 Mitsubishi Heavy Ind Ltd Air conditioning unit
JP2004143975A (en) * 2002-10-23 2004-05-20 Hitachi Home & Life Solutions Inc Sound insulation device of compressor
JP2006132462A (en) * 2004-11-08 2006-05-25 Mitsubishi Electric Corp Heat insulating structure for refrigerant compressor
JP2007107738A (en) * 2005-10-11 2007-04-26 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2007192440A (en) * 2006-01-18 2007-08-02 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2007198717A (en) * 2006-01-30 2007-08-09 Denso Corp Hot water storage tank
JP2008039288A (en) * 2006-08-07 2008-02-21 Matsushita Electric Ind Co Ltd Heat pump type water heater

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04327093A (en) * 1991-04-26 1992-11-16 Kubota Corp Sound arrester for head cover of engine
JPH0628210U (en) * 1992-09-08 1994-04-15 三菱自動車工業株式会社 Vertical exhaust system for automobiles
JPH08193590A (en) * 1995-01-17 1996-07-30 Matsushita Electric Ind Co Ltd Heat insulating device of scroll compressor
JPH09287782A (en) * 1996-04-22 1997-11-04 Mitsubishi Heavy Ind Ltd Air conditioning unit
JP2004143975A (en) * 2002-10-23 2004-05-20 Hitachi Home & Life Solutions Inc Sound insulation device of compressor
JP2006132462A (en) * 2004-11-08 2006-05-25 Mitsubishi Electric Corp Heat insulating structure for refrigerant compressor
JP2007107738A (en) * 2005-10-11 2007-04-26 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2007192440A (en) * 2006-01-18 2007-08-02 Matsushita Electric Ind Co Ltd Heat pump water heater
JP2007198717A (en) * 2006-01-30 2007-08-09 Denso Corp Hot water storage tank
JP2008039288A (en) * 2006-08-07 2008-02-21 Matsushita Electric Ind Co Ltd Heat pump type water heater

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