JP4659989B2 - Medical oxygen concentrator - Google Patents

Medical oxygen concentrator Download PDF

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Publication number
JP4659989B2
JP4659989B2 JP2001038085A JP2001038085A JP4659989B2 JP 4659989 B2 JP4659989 B2 JP 4659989B2 JP 2001038085 A JP2001038085 A JP 2001038085A JP 2001038085 A JP2001038085 A JP 2001038085A JP 4659989 B2 JP4659989 B2 JP 4659989B2
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Japan
Prior art keywords
heat
compressor
heat pipe
oxygen concentrator
pipe radiator
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JP2001038085A
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Japanese (ja)
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JP2002239008A (en
Inventor
謙史 西村
敏雄 元木
善之 小西
浩人 早坂
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Teijin Pharma Ltd
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Teijin Pharma Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は空気中の酸素を分離し酸素濃縮空気を生成する医療用酸素濃縮装置に関する。更に詳細には医療用酸素濃縮器に搭載されるコンプレッサの冷却効率を向上させると共に騒音問題を解決した酸素濃縮装置に関するものである。
【0002】
【従来の技術】
近年、喘息、肺気腫症、慢性気管支炎などの呼吸器系疾患に苦しむ患者が増加する傾向があるが、その最も効果的な治療法の一つとして酸素吸入療法があり、空気中から酸素濃縮気体を直接分離する酸素濃縮装置が開発され、使用時の利便性、保守管理の容易さから酸素吸入療法用の治療装置として、次第に普及するようになってきている。
【0003】
かかる酸素濃縮装置として、窒素を選択的に吸着し得る吸着剤を1個或いは、複数の吸着床に充填した吸着型酸素濃縮装置が知られ、中でも空気供給手段としてコンプレッサを用いた圧力変動吸着型酸素濃縮装置が多用されている。かかる装置は、通常、窒素を選択的に吸着し得る吸着剤を充填した1個或いは複数の吸着床にコンプレッサから圧縮空気を供給して加圧状態で窒素を吸着させることにより酸素濃縮気体を得る吸着工程と、吸着床の内圧を減少させて窒素を脱着させ吸着剤の再生を行う脱着工程を一定サイクルで繰り返し行い、更に必要に応じて、脱着工程終了直前に、既に生成した乾燥酸素濃縮気体を一部逆流させ再生効率の向上と昇圧を目的とする均圧工程を加えて、順次一定サイクルで行うことにより酸素濃縮気体を得る装置である。
【0004】
かかる酸素濃縮装置は一般の機器と同様に機器内部で発生する熱を外部に放熱する必要があり、酸素濃縮装置の最大熱発生源であるコンプレッサを冷却するための強制冷却ファンを備えている。しかし、医療機器であること、患者の枕もとで24時間使用されることから静寂性が求められ、特開昭60−200804号公報に記載のようにコンプレッサをボックス内に収納すると共に空冷用の空気流入経路、排出経路の長さ屈曲回数などを規定する方法が開示されている。
【0005】
大気流入口や排気口からの騒音の漏れを解消する方法として、特開昭63-218502号公報には、コンプレッサボックスを完全に密閉化し、ヒートパイプを備えた酸素濃縮装置が開示されている。
【0006】
【発明が解決しようとする課題】
筐体内部温度上昇防止手段としての筐体冷却装置の代表的な例を図3に示す。図3において、コンプレッサボックス筐体1には、ファン6の取り付け用開口部1aと空気取り入れ用の開口部1bが設けられる。通常、空気取入用の開口部1bには、不織布等でできたフィルタ7が取り付けられており、ファン6を回転させることにより、空気取入口1bから空気を取り入れ、筐体内部を通過し、ファンから排出される空気の流れを作り出す。そのことによって、筐体内部のコンプレッサ3で発生した熱量は、筐体外部に排出される為、機器筐体内部の温度上昇を防止することができる。しかし、この方式は空気取入用、排出用の開口部から外部にコンプレッサの音が漏れる問題点を備える。
【0007】
筐体内部で発生する騒音を外部に漏洩せしめないために、密閉筐体を使用することは有効な手段である。しかし装置の性能維持の為には、同時に排熱問題も解消する必要がある。その解決策としてヒートパイプを使用する方法が開示されているが、従来型ヒートパイプは、受熱部で発生した作動液蒸気が放熱部に移動し冷却され凝縮し、凝縮作動液が管内壁に設けられてあるウィックの毛細管作用により還流する循環サイクルにより熱輸送を行う。還流は重力の影響を大きく受ける。この為、放熱部と受熱部を固定する必要がある上に、放熱部を受熱部の水平より下側に配置する場合は還流が阻害され大幅な性能低下につながるため、配置上の制約が大きい。 更に、ヒートパイプはプレートフィンを装着して使用する必要があり、小型軽量化が求められる酸素濃縮装置などの在宅医療機器への適用は困難である。またフィン装着上の製造技術的理由からヒートパイプは直管パイプである必要があり、更に各ヒートパイプの長さは等しい長さが要求されるなど、設計の自由度が小さく、酸素濃縮装置への適用は行なわれていない。
【0008】
本発明の目的は、従来技術の有する欠点を解消するものであり、筐体の気密性を高め密閉化することにより、筐体内部で発生する騒音を外部に漏洩せしめないように静寂性が高めるとともに、装着位置の自由度が高く熱交換性の優れた熱交換器を装着する事で患者に受け入れやすい医療用酸素濃縮装置を提供するものである。
【0009】
【課題を解決するための手段】
本発明者はかかる課題に対して鋭意検討した結果、以下の酸素濃縮装置を見出した。すなわち本発明は、酸素よりも窒素を選択的に吸着する吸着剤を充填した吸着筒、該吸着筒に加圧空気を供給するコンプレッサを備え、使用者に酸素濃縮空気を供給する酸素濃縮装置において、該コンプレッサを密閉された状態で収納するコンプレッサボックス及び該コンプレッサボックス内の発生熱を外部に放出する蛇行細管ヒートパイプ放熱器を備えることを特徴とする医療用酸素濃縮装置を提供するものである。
【0010】
また本発明は、かかる蛇行細管ヒートパイプ放熱器が、該コンプレッサーボックスの筐体壁を貫通して設けらることを特徴とする医療用酸素濃縮装置、或は該コンプレッサーボックスの筐体壁の少なくとも一部に受熱平板を備え、該筐体の受熱平板の両側に該蛇行細管ヒートパイプ放熱器を備えることを特徴とする医療用酸素濃縮装置を提供するものである。
【0011】
また本発明は、内部にコンプレッサーを備えた医療機器において、該コンプレッサを密閉された状態で収納するコンプレッサボックス及び該コンプレッサボックス内の発生熱を外部に放出する該蛇行細管ヒートパイプ放熱器を備えることを特徴とする医療機器を提供するものである。
【0012】
【発明の実施の形態】
本発明の医療用酸素濃縮装置の概略図を図5に示す。かかる酸素濃縮装置は、酸素よりも窒素を選択的に吸着する吸着剤として5A型ゼオライトを充填した吸着筒にコンプレッサにより加圧空気を供給し、酸素濃度90%の酸素濃縮ガスを取り出し、加湿器を経由して使用者である呼吸器疾患患者に、例えば3L/minの流量で供給する1筒式の圧力変動吸着型酸素濃縮装置である。
【0013】
コンプレッサは、酸素濃縮装置の筐体内で更にコンプレッサボックスに収納され、コンプレッサ音が直接外部に漏れないように密閉状態に置かれる。コンプレッサボックスの材質は特に限定するものではないが、鉄板などの金属製、樹脂製、木製などを用いる事が可能であり、質量則に従い、金属製などの密度の高い材料を使用するのが好ましい。
【0014】
かかるコンプレッサーボックスの一部には、受熱平板を備える。かかる受熱平板は熱伝導性の良好な材質で作る平板であり、銅、アルミなどの平板が好ましい。
【0015】
蛇行細管ヒートパイプは、図4に示すように、熱伝導性の良好なアルミニウム鋼や銅鋼板等でできたコンテナ本体8の内部に受熱部と放熱部との間を往復蛇行する内径約3mm以下の密閉蛇行細管を形成する構造9を有し、その蛇行細管中に水などの冷媒作動液を充填したものを基本要素とするものであり、熱吸収により作動液が相変化し、蒸気は受熱部の高圧側から放熱部の低圧側へと移動する事で潜熱輸送するものであるが、蒸気泡の移動と同時に液相部も受熱部から放熱部へと移動して顕熱をも輸送するものである。この為、蛇行細管ヒートパイプは、従来型のヒートパイプとことなり、放熱部を受熱部よりも下方に配置することが可能である。また、任意の形状に折り曲げたり、フィンを取り付けたりして使用することも可能である。
【0016】
コンプレッサボックス及び蛇行細管ヒートパイプ放熱器の構成について、更に詳細に示す。図1は本発明の医療用酸素濃縮装置に使用するコンプレッサボックスの実施態様例を示すものであり、コンプレッサボックス1は密閉機器筐体であり、5はボックス筐体外部と筐体内部の間を気密に隔絶する受熱平板である。受熱平板内壁面には、受熱用として、蛇行細管ヒートパイプ放熱器2aが接着されており、受熱平板外壁面には、放熱用としての蛇行細管ヒートパイプ放熱器2bが接着されている。コンプレッサボックス内には発熱源となるコンプレッサ3が配置され、原料空気供給用及び加圧空気供給用の配管及び電源ケーブル用出口は備えるものの、各出口は密閉されている。
【0017】
コンプレッサボックス1の内部に、強制対流手段4aとして軸流ファンあるいはクロスフローファンを設け、これにより、発生する強制対流により、コンプレッサでの発熱を受熱用蛇行細管ヒートパイプ放熱器2aに効率よく熱輸送せしめるように配置されている。尚、かかる蛇行細管ヒートパイプ放熱器として、ティーエスヒートロニクス社製ヒートレーンTMを使用した。
【0018】
コンプレッサボックス1の外側には、強制対流手段4bとして軸流ファンあるいはシロッコファンを設け、これにより発生する低温強制対流により、放熱用蛇行細管ヒートパイプ放熱器1bの放熱能力をアップさせる。ファンの配置は、蛇行細管ヒートパイプ放熱器2a,2bに対して、強制対流を吹き込むように配置される場合も、ファンの空気吸引により強制対流を発生せしめるように配置される場合もある。
【0019】
また、蛇行細管ヒートパイプ放熱器は、従来型のヒートパイプとことなり、放熱部を受熱部よりも下方に配置することが可能である為、本実施例は天地を逆転して使用することも可能である。
【0020】
かかる実施態様例は、蛇行細管構造を有する蛇行細管ヒートパイプ放熱器の優れた放熱特性と装着位置の自由度が高い特徴を有効に活用することにより、密閉機器筐体内の被冷却体の熱量を筐体壁を介して筐体外に効率的に放出せしめることが可能となる為、コンプレッサ等の発熱機器を密閉機器筐体内で安定した状態で外部に騒音を漏洩せしめることなく運転することができる。
【0021】
本発明の医療用酸素濃縮装置のコンプレッサボックスの構成の別の実施態様例を図2に示す。かかる態様例では、密閉機器筐体であるコンプレッサボックス筐体外に放熱用の蛇行細管ヒートパイプ放熱器および強制対流手段としてのファンを有さずに、筐体の全面あるいは特定の一面を薄肉で熱伝導性の良好な材質、例えば、アルミニウム鋼板の如きもので形成し、筐体全面が熱伝導性の良好な材質の場合は、その内側の任意の面に、また、特定の一面が熱伝導性の良好な材質の場合は、その面に対応する内側の面に受熱用の蛇行細管ヒートパイプ放熱器を直接接着されている。
【0022】
この様に構成されてあるから、機器筐体内の発熱は筐体の全面あるいは特定の一面を介して大気中に排出される。筐体外部には強制対流手段としてのファンおよび放熱用の蛇行細管ヒートパイプ放熱器を有さない為、装置のコストおよび騒音を低減することができる。
【0023】
上記、実施態様例は医療用酸素濃縮装置を例に述べたが、かかる発明は医療用酸素濃縮装置だけでなく、内部にコンプレッサーを内蔵する医療機器に適用できるものである。例えば歯科医師が使用するエアドリルなど、コンプレッサーの騒音が問題となる医療機器の改善に役立つものである。
【0024】
【発明の効果】
装着位置の自由度が高く熱交換性の優れた蛇行細管ヒートパイプ放熱器を応用し、効率的に密閉機器筐体内から熱量を筐体外に排出することにより、筐体の気密性を高め密閉化することが可能となる。その結果、医療用酸素濃縮装置の筐体内部で発生するコンプレッサ騒音は外部に漏洩せず、高い静寂性を有する医療用酸素濃縮装置が提供可能となる。
【図面の簡単な説明】
【図1】本発明の医療用酸素濃縮装置のコンプレッサボックス周辺の概略構成図である。
【図2】本発明の医療用酸素濃縮装置のコンプレッサボックス周辺の別の態様例の概略構成図である。
【図3】従来型の機器筐体冷却装置の概略構成図ある。
【図4】蛇行細管ヒートパイプ放熱器の概略構成図である。
【図5】本発明の医療用酸素濃縮装置の概略構成図。
【符号の説明】
1 機器筐体
2a 受熱用蛇行細管ヒートパイプ放熱器
2b 放熱用蛇行細管ヒートパイプ放熱器
3 コンプレッサ
4a 内部強制対流手段
4b 外部強制対流手段
5 受熱平板
6 ファン
7 フィルタ
8 蛇行細管ヒートパイプ放熱器本体
9 蛇行細管構造
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a medical oxygen concentrator that separates oxygen in the air and generates oxygen-enriched air. More particularly, the present invention relates to an oxygen concentrator that improves the cooling efficiency of a compressor mounted on a medical oxygen concentrator and solves the noise problem.
[0002]
[Prior art]
In recent years, there has been an increase in the number of patients suffering from respiratory diseases such as asthma, emphysema, and chronic bronchitis. One of the most effective treatments is oxygen inhalation therapy, and oxygen-enriched gas from the air Oxygen concentrators that directly separate water are developed, and are becoming increasingly popular as therapeutic devices for oxygen inhalation therapy because of convenience during use and ease of maintenance.
[0003]
As such an oxygen concentrator, an adsorbent oxygen concentrator in which one or a plurality of adsorbents capable of selectively adsorbing nitrogen is filled is known, and in particular, a pressure fluctuation adsorption type using a compressor as an air supply means. Oxygen concentrators are frequently used. Such an apparatus usually obtains an oxygen-enriched gas by supplying compressed air from a compressor to one or a plurality of adsorption beds filled with an adsorbent capable of selectively adsorbing nitrogen to adsorb nitrogen in a pressurized state. The adsorption process and the desorption process that desorbs nitrogen by reducing the internal pressure of the adsorption bed and regenerates the adsorbent are repeated in a certain cycle, and if necessary, the dried oxygen-enriched gas that has already been generated immediately before the completion of the desorption process Is a device that obtains oxygen-enriched gas by sequentially performing a constant cycle by adding a pressure equalization step for the purpose of improving the regeneration efficiency and increasing the pressure by partially backflowing.
[0004]
Such an oxygen concentrator needs to dissipate heat generated inside the equipment to the outside, as in general equipment, and includes a forced cooling fan for cooling a compressor that is a maximum heat generation source of the oxygen concentrator. However, since it is a medical device and used 24 hours at the patient's pillow, quietness is required, and the compressor is housed in a box and air-cooled as described in JP-A-60-200804. A method for defining the length of the air inflow path and the number of bending of the discharge path is disclosed.
[0005]
As a method for eliminating noise leakage from a large air flow inlet or exhaust port, Japanese Patent Application Laid-Open No. 63-218502 discloses an oxygen concentrator having a compressor box completely sealed and a heat pipe.
[0006]
[Problems to be solved by the invention]
FIG. 3 shows a typical example of a housing cooling device as a housing internal temperature rise prevention means. In FIG. 3, the compressor box housing 1 is provided with an opening 1a for attaching the fan 6 and an opening 1b for taking in air. Normally, a filter 7 made of a nonwoven fabric or the like is attached to the air intake opening 1b, and by rotating the fan 6, air is taken in from the air intake 1b and passes through the inside of the housing. Creates a flow of air exhausted from the fan. As a result, the amount of heat generated by the compressor 3 inside the housing is discharged outside the housing, and thus the temperature inside the device housing can be prevented from rising. However, this method has a problem that the sound of the compressor leaks to the outside through the air intake and discharge openings.
[0007]
The use of a sealed casing is an effective means for preventing noise generated inside the casing from leaking outside. However, in order to maintain the performance of the apparatus, it is necessary to solve the exhaust heat problem at the same time. As a solution to this, a method using a heat pipe is disclosed, but in a conventional heat pipe, the working fluid vapor generated in the heat receiving part moves to the heat radiating part and is cooled and condensed, and the condensed working liquid is provided on the inner wall of the pipe. Heat transport is performed by a circulation cycle that is refluxed by the capillary action of the wick. Reflux is greatly affected by gravity. For this reason, it is necessary to fix the heat radiating part and the heat receiving part, and when the heat radiating part is arranged below the horizontal of the heat receiving part, the reflux is hindered and the performance is greatly reduced, so there are large restrictions on the arrangement. . Furthermore, the heat pipe needs to be used with plate fins attached, and is difficult to apply to home medical devices such as oxygen concentrators that are required to be small and light. In addition, the heat pipe must be a straight pipe for manufacturing technical reasons when mounting fins, and the length of each heat pipe is required to be equal. Is not applied.
[0008]
The object of the present invention is to eliminate the disadvantages of the prior art, and by increasing the airtightness of the housing and sealing it, the quietness is improved so that noise generated inside the housing is not leaked to the outside. In addition, the present invention provides a medical oxygen concentrator that is easily received by a patient by mounting a heat exchanger having a high degree of freedom of mounting position and excellent heat exchange.
[0009]
[Means for Solving the Problems]
As a result of intensive studies on this problem, the present inventors have found the following oxygen concentrator. That is, the present invention provides an adsorption cylinder filled with an adsorbent that selectively adsorbs nitrogen over oxygen, a compressor that supplies pressurized air to the adsorption cylinder, and an oxygen concentrator that supplies oxygen-enriched air to a user. The present invention provides a medical oxygen concentrator comprising a compressor box for storing the compressor in a sealed state, and a meandering capillary heat pipe radiator for releasing heat generated in the compressor box to the outside. .
[0010]
In the present invention, the meandering capillary heat pipe radiator is provided through the casing wall of the compressor box, or a medical oxygen concentrator, or at least the casing wall of the compressor box. The present invention provides a medical oxygen concentrator comprising a heat receiving flat plate in a part and the meandering capillary heat pipe radiator on both sides of the heat receiving flat plate of the housing.
[0011]
The present invention also provides a medical device having a compressor therein, the compressor box storing the compressor in a sealed state, and the meandering tube heat pipe radiator for releasing heat generated in the compressor box to the outside. A medical device characterized by the above is provided.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A schematic diagram of the medical oxygen concentrator of the present invention is shown in FIG. Such an oxygen concentrator supplies pressurized air to an adsorption cylinder filled with 5A-type zeolite as an adsorbent that selectively adsorbs nitrogen rather than oxygen, takes out an oxygen-concentrated gas having an oxygen concentration of 90%, and a humidifier This is a one-cylinder pressure fluctuation adsorption type oxygen concentrator that supplies a respiratory disease patient who is a user via a flow rate, for example, at a flow rate of 3 L / min.
[0013]
The compressor is further housed in a compressor box within the housing of the oxygen concentrator, and is placed in a sealed state so that the compressor sound does not leak directly to the outside. The material of the compressor box is not particularly limited, but it is possible to use a metal such as an iron plate, a resin, a wood, etc., and it is preferable to use a material having a high density such as a metal according to the mass law. .
[0014]
A part of the compressor box includes a heat receiving flat plate. Such a heat receiving flat plate is a flat plate made of a material having good thermal conductivity, and a flat plate made of copper, aluminum or the like is preferable.
[0015]
As shown in FIG. 4, the meandering capillary heat pipe has an inner diameter of about 3 mm or less that reciprocates between the heat receiving portion and the heat radiating portion inside the container body 8 made of aluminum steel, copper steel plate or the like having good thermal conductivity. The structure 9 forms a closed meandering capillary tube, and the meandering tube is filled with a refrigerant working fluid such as water. The working fluid undergoes a phase change due to heat absorption, and the steam receives heat. It is transported latent heat by moving from the high pressure side of the heat sink to the low pressure side of the heat radiating section, but simultaneously with the movement of the vapor bubbles, the liquid phase section also moves from the heat receiving section to the heat radiating section to transport sensible heat. Is. For this reason, the meandering capillary heat pipe is different from the conventional heat pipe, and the heat radiating part can be arranged below the heat receiving part. Moreover, it is also possible to use it by bending it into an arbitrary shape or attaching a fin.
[0016]
The configuration of the compressor box and the meandering capillary heat pipe radiator will be described in more detail. FIG. 1 shows an example of an embodiment of a compressor box used in the medical oxygen concentrator of the present invention. The compressor box 1 is a sealed device housing, and 5 is a space between the outside of the box housing and the inside of the housing. It is a heat receiving flat plate that is airtightly isolated. A meandering capillary tube heat pipe radiator 2a is bonded to the inner wall surface of the heat receiving plate for heat reception, and a meandering capillary tube heat pipe radiator 2b for heat dissipation is bonded to the outer wall surface of the heat receiving plate. A compressor 3 serving as a heat source is disposed in the compressor box, and the outlets for the raw air supply and the pressurized air supply and the outlet for the power cable are provided, but each outlet is sealed.
[0017]
The compressor box 1 is provided with an axial flow fan or a cross flow fan as the forced convection means 4a, whereby heat generated by the compressor is efficiently transported to the heat-receiving serpentine capillary heat pipe radiator 2a by the generated forced convection. It is arranged so that it can be damped. A heat lane TM manufactured by TS Thermonics was used as such a meandering capillary heat pipe radiator.
[0018]
An axial fan or a sirocco fan is provided outside the compressor box 1 as the forced convection means 4b, and the heat radiation capability of the heat-dissipating meandering capillary heat pipe radiator 1b is increased by the low-temperature forced convection generated thereby. The fan may be arranged to blow forced convection to the meandering capillary heat pipe radiators 2a and 2b or may be arranged to generate forced convection by air suction of the fan.
[0019]
In addition, the meandering capillary heat pipe radiator is different from the conventional heat pipe, and since the heat radiating part can be arranged below the heat receiving part, this embodiment can also be used with the top and bottom reversed. Is possible.
[0020]
Such an example embodiment effectively uses the heat dissipation characteristics of the meandering capillary heat pipe radiator having the meandering capillary structure and the high degree of freedom of the mounting position, thereby reducing the amount of heat of the object to be cooled in the sealed device casing. Since it can be efficiently discharged outside the housing through the housing wall, the heat generating device such as a compressor can be operated in a stable state in the sealed device housing without leaking noise to the outside.
[0021]
FIG. 2 shows another embodiment of the configuration of the compressor box of the medical oxygen concentrator of the present invention. In such an example, the entire surface or a specific surface of the housing is thin and heat-free without a meandering capillary heat pipe radiator for heat radiation and a fan as forced convection means outside the compressor box housing which is a sealed device housing. If it is made of a material with good conductivity, such as an aluminum steel plate, and the entire housing is made of a material with good heat conductivity, it can be placed on any surface inside it, and one specific surface is thermally conductive. In the case of a good material, a meandering capillary heat pipe radiator for heat reception is directly bonded to the inner surface corresponding to the surface.
[0022]
Since it is configured in this way, heat generated in the device casing is discharged to the atmosphere through the entire surface of the casing or a specific surface. Since there is no fan as a forced convection means and a meandering capillary tube heat pipe radiator for heat radiation outside the housing, the cost and noise of the apparatus can be reduced.
[0023]
In the above embodiment, the medical oxygen concentrator has been described as an example. However, the present invention can be applied not only to a medical oxygen concentrator but also to a medical device having a built-in compressor. For example, it is useful for improving medical devices such as air drills used by dentists, where compressor noise is a problem.
[0024]
【The invention's effect】
Applying a serpentine tubule heat pipe radiator with a high degree of freedom in the mounting position and excellent heat exchange, it efficiently exhausts heat from the inside of the sealed equipment case to improve the air tightness of the case and seal it It becomes possible to do. As a result, the compressor noise generated inside the casing of the medical oxygen concentrator does not leak to the outside, and a medical oxygen concentrator having high silence can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram around a compressor box of a medical oxygen concentrator of the present invention.
FIG. 2 is a schematic configuration diagram of another embodiment around the compressor box of the medical oxygen concentrator of the present invention.
FIG. 3 is a schematic configuration diagram of a conventional device casing cooling apparatus.
FIG. 4 is a schematic configuration diagram of a meandering capillary tube heat pipe radiator.
FIG. 5 is a schematic configuration diagram of a medical oxygen concentrator according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus housing 2a Heat-receiving serpentine capillary heat pipe radiator 2b Heat-dissipating serpentine capillary heat pipe radiator 3 Compressor 4a Internal forced convection means 4b External forced convection means 5 Heat-receiving plate 6 Fan 7 Filter 8 Meandering capillary heat pipe radiator body 9 Serpentine tubule structure

Claims (2)

酸素よりも窒素を選択的に吸着する吸着剤を充填した吸着筒、該吸着筒に加圧空気を供給するコンプレッサを備え、使用者に酸素濃縮空気を供給する酸素濃縮装置において、該コンプレッサを密閉された状態で収納するコンプレッサボックス、該コンプレッサボックスの筐体壁の少なくとも一部に受熱平板、該受熱平板の内壁面に受熱用蛇行細管ヒートパイプ放熱器、および該受熱平板の外壁面に放熱用蛇行細管ヒートパイプ放熱器を備えることを特徴とする医療用酸素濃縮装置。An adsorption cylinder filled with an adsorbent that selectively adsorbs nitrogen rather than oxygen, and a compressor that supplies pressurized air to the adsorption cylinder. In an oxygen concentrator that supplies oxygen-enriched air to a user, the compressor is sealed. Compressor box to be stored in a heat-treated state, a heat receiving plate on at least a part of the casing wall of the compressor box, a meandering capillary heat pipe radiator for receiving heat on the inner wall surface of the heat receiving plate, and a heat sink on the outer wall surface of the heat receiving plate A medical oxygen concentrator comprising a meandering capillary heat pipe radiator . 内部にコンプレッサを備えた医療機器において、該コンプレッサを密閉された状態で収納するコンプレッサボックス、該コンプレッサボックスの筐体壁の少なくとも一部に受熱平板、該受熱平板の内壁面に受熱用蛇行細管ヒートパイプ放熱器、および該受熱平板の外壁面に放熱用蛇行細管ヒートパイプ放熱器を備えることを特徴とする医療機器。The medical instrument having a compressors therein, the compressor box for housing while being sealed the compressor, at least a portion to the heat receiving plates meandering capillary tube for heat the inner wall surface of the receiving thermal flat plate of the compressor box housing wall A medical device comprising a heat pipe radiator and a meandering capillary heat pipe radiator for heat radiation on an outer wall surface of the heat receiving flat plate .
JP2001038085A 2001-02-15 2001-02-15 Medical oxygen concentrator Expired - Fee Related JP4659989B2 (en)

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JP2004261223A (en) * 2003-02-14 2004-09-24 Teijin Ltd Oxygen concentrator for medical use
EP2148146B1 (en) * 2007-05-15 2021-08-11 Espec Corp. Humidity control apparatus, environment test apparatus and temperature/humidity control apparatus
JP5443023B2 (en) * 2009-03-09 2014-03-19 株式会社医器研 Compressor and oxygen concentrator
CN104776012B (en) * 2015-04-13 2017-03-22 北京普立泰科仪器有限公司 Noise absorbing device for vacuum pump

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JPS5449671A (en) * 1977-09-28 1979-04-19 Kankiyou Shisutemu Kk Room temperature elevation preventor in construction with heat storage type heat exchanger and radiator
JPS63218502A (en) * 1987-03-06 1988-09-12 Teijin Ltd Oxygen concentrator
JPH06112383A (en) * 1992-09-28 1994-04-22 Akutoronikusu Kk Equipment case inner temperature lowering means
JPH0783582A (en) * 1993-09-13 1995-03-28 Akutoronikusu Kk Sealed equipment container cooling device
JPH09182794A (en) * 1995-12-28 1997-07-15 Nippon Rufuto Kk Adsorptive oxygen concentrating device
JPH09303983A (en) * 1996-05-09 1997-11-28 Akutoronikusu Kk Stereo-type heat pipe radiator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449671A (en) * 1977-09-28 1979-04-19 Kankiyou Shisutemu Kk Room temperature elevation preventor in construction with heat storage type heat exchanger and radiator
JPS63218502A (en) * 1987-03-06 1988-09-12 Teijin Ltd Oxygen concentrator
JPH06112383A (en) * 1992-09-28 1994-04-22 Akutoronikusu Kk Equipment case inner temperature lowering means
JPH0783582A (en) * 1993-09-13 1995-03-28 Akutoronikusu Kk Sealed equipment container cooling device
JPH09182794A (en) * 1995-12-28 1997-07-15 Nippon Rufuto Kk Adsorptive oxygen concentrating device
JPH09303983A (en) * 1996-05-09 1997-11-28 Akutoronikusu Kk Stereo-type heat pipe radiator

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