【０００１】
【発明の属する技術分野】
本発明は天井内設置形ヒートポンプ式空調機に関する。
【０００２】
【従来の技術】
【特許文献１】特開２００３−４２４８０号公報
従来、天井内に設置するヒートポンプ式空調機として上記公報のものが公知である。この空調機は、外気を蒸発器で熱交換して室内に給気すると共にこの室内の空気を凝縮器で熱回収しながら屋外に排気するものであり、ケーシング内に蒸発器と凝縮器を含むヒートポンプを一体に備えている。このケーシング内には、略平行に隣接する給気送風路と排気送風路があり、給気送風路には給気用フィルタと蒸発器と加湿器と給気用送風機が設けられ、排気送風路には排気用フィルタと凝縮器と排気用送風機が設けられており、ケーシングの給気送風路側の外側面に加湿器点検パネルと給気用フィルタ点検扉を設け、その反対側のケーシングの排気送風路側の外側面に排気用フィルタ点検扉を設けていた。
【０００３】
【発明が解決しようとする課題】
そのため、空調機を天井内に設置してフィルタなどのメンテナンスを行う場合、ケーシングの両外側面から点検する必要があり作業が面倒で、天井内が狭くて作業者が入り込めない場合など、各々の外側面に手が届くように点検口を少なくとも２つ天井板に設ける必要があり、設備コストがかかる問題があった。そこで、これらの問題点を解決する天井内設置形ヒートポンプ式空調機を提供することを目的とする。
【０００４】
【課題を解決するための手段】
上記目的を達成するために、本発明の天井内設置形ヒートポンプ式空調機は、外気を蒸発器で熱交換して室内に給気すると共にこの室内の空気を凝縮器で熱回収しながら屋外に排気する天井内設置形ヒートポンプ式空調機であって、ケーシング内に、略平行に隣接する給気送風路と排気送風路とを備え、前記給気送風路に給気用フィルタと前記蒸発器と加湿器と給気用送風機を設けると共に、前記排気送風路に排気用フィルタと前記凝縮器と排気用送風機を設け、前記ケーシングの給気送風路側の外側面のみに、排気用フィルタ点検扉と、加湿器点検パネルと、給気用フィルタ点検扉と、を設け、前記給気送風路の途中部を縮径させ、この縮径部の風上に前記給気用送風機を配置し、この縮径部の風下の拡径空室部と前記排気送風路にまたがって、前記排気用フィルタをスライド自在に保持するガイドレールを、設けた。
【０００５】
【発明の実施の形態】
図１〜図４は、本発明の天井内設置形ヒートポンプ式空調機の一実施例を示しており、外気を蒸発器３で熱交換して室内に給気すると共にこの室内の空気を凝縮器２で熱回収しながら屋外に排気する。実線及び点線の白抜き矢印は送風方向を示す。この空調機の扁平箱形のケーシング１内に、蒸発器３と凝縮器２と圧縮機４を含む冷媒循環回路Ｃと、略平行に隣接する給気送風路Ｂと排気送風路Ａと、を備えている。給気送風路Ｂには給気用フィルタ１６と蒸発器３と加湿器９と給気用送風機１４を設けると共に、排気送風路Ａに排気用フィルタ１７と凝縮器２と圧縮機４と排気用送風機１５を設け、ケーシング１の給気送風路側の外側面のみに、開閉自在な排気用フィルタ点検扉１８と、着脱自在な加湿器点検パネル１９と、開閉自在な給気用フィルタ点検扉２２と、電装ボックス２６と、を設ける。給気用フィルタ１６は蒸発器３と加湿器９の風上に設け、排気用フィルタ１７は凝縮器２の風上に設ける。給気用送風機１４は吸込み式として蒸発器３と加湿器９の風下に設け、排気用送風機１５は押込み式として凝縮器２の風上に設ける。
【０００６】
この給気送風路Ｂの途中部を通気口付板材などを設けて縮径させ、この縮径部２３の風上に給気用送風機１４を配置する。図例では前記通気口付板材を送風機取付部材に兼用して部品点数の削減を図っている。この縮径部２３の風下の拡径空室部２４と排気送風路Ａにまたがって、排気用フィルタ１７を挟むようにしてスライド自在に保持するガイドレール２５を、設ける。給気送風路Ｂと排気送風路Ａを区画する仕切部には排気用フィルタ１７を挿通する孔部を形成する。図３のように、拡径空室部２４のガイドレール２５に、排気用フィルタ１７と連結・分離自在な枠体２７を、スライド自在に保持すれば、天井内が狭小で入り込むことができず排気用フィルタ点検扉１８から排気送風路Ａまで手が届かない場合でも、排気用フィルタ１７を入れた後、枠体２７を連結してガイドレール２５に沿って奥に押込むことにより排気送風路Ａに排気用フィルタ１７を簡単にセットしてずれないようにしたり、そのセット状態から手前の枠体２７を引出すだけで排気用フィルタ１７を一緒に取出したりできる。枠体２７と排気用フィルタ１７は分離して、別々に点検口から出し入れできるので小さな点検口でよく、狭小な天井内でも邪魔にならず取り扱いが楽となる。枠体２７は排気用フィルタ１７とフック部材などで連結・分離自在に構成する。なお、枠体２７が無い構造とするも自由である。
【０００７】
ケーシング１には、外気取入口１０と給気口１１と還気取入口１２と排気口１３を形成し、外気取入口１０と給気口１１を給気送風路Ｂにて連通連結し、還気取入口１２と排気口１３を排気送風路Ａにて連通連結する。還気取入口１０はダクトや吸込口等を介して室内と連通連結し、給気口１１はダクトや吹出口等を介して室内と連通連結する。外気取入口１０と排気口１３はダクトなどを介して屋外と連通する。
【０００８】
冷媒循環回路Ｃは、蒸発器３、凝縮器２、圧縮機４、図示省略の受液器、膨張弁及び冷媒循環方向の正逆の切換弁等を配管接続して成り、蒸発器３及び凝縮器２の吸熱と放熱を切換自在に構成する。図例では、冷媒循環回路Ｃ付のフレーム５を、ケーシング１内部に設けた伸縮自在な棒状のダンパー２１にて、吊持状として着脱自在に連結する。ケーシング１の底面には、冷媒循環回路Ｃ付のフレーム５を上下に出し入れする開口部６を、形成し、この開口部６を、着脱又は開閉自在な外装板７にて施蓋する。フレーム５と外装板７の間にはドレンパン２０を着脱自在に設ける。ダンパー２１は、ガスやオイルを充填したシリンダ内にピストンロッドを伸縮自在に設けて成る。ダンパー２１は、冷媒循環回路Ｃ付のフレーム５の降下速度を遅延させるように即ちその降下方向（ロッドの伸び方向）のみに抵抗力（減衰力）が働くように構成し、上昇方向には抵抗力がかからないようにして出し入れを容易にする。
【０００９】
この空調機では、外気取入口１０から取入れた外気を蒸発器３で熱交換し、必要に応じて加湿器９を作動させて給気口１１から給気し、同時に還気取入口１２から取入れた還気（屋内からの排気）で凝縮器２の循環冷媒を熱交換して吸熱又は放熱しつつ排気口１３から屋外へ排気する。このとき給気送風路Ｂ内で流通空気が縮径部２３から拡径空室部２４に拡散して、端末反射により騒音エネルギーが減衰して消音効果を得ることができる。
【００１０】
なお、ケーシング１内の各部品の配置や構造変更は自由で、例えば図５に示すように、給気用送風機１４を押込式として蒸発器３と加湿器９の風上に設け、排気用送風機１５を吸込式として凝縮器２の風下に設けるも自由である。また、前記実施例の空調機を外気処理空調機として使用するも自由で、ケーシング１の底面から冷媒循環回路Ｃ付のフレーム５を取出・収納しないケーシング一体化構造とするも自由である。
【００１１】
【発明の効果】
本発明では、ケーシング１の一方の外側面のみに排気用フィルタ点検扉１８と、加湿器点検パネル１９と、給気用フィルタ点検扉２２があるので、メンテナンスが容易となり、天井板に点検口を１つ設けるだけでよく設備コストを低減できる。ガイドレール２５で排気用フィルタ１７をスムーズに出し入れでき、給気送風路Ｂの拡径空室部２４をフィルタ出し入れと消音チャンバに兼用できて、スペースの有効利用を図れる。低騒音なので消音装置なしに室内近辺の天井内に設置でき、設備コストの削減を図れる。
【図面の簡単な説明】
【図１】本発明の一実施例を示す平面図である。
【図２】図１の側面図である。
【図３】ケーシングの上面から見た一部省略の斜視図である。
【図４】ケーシングの底面から見た一部省略の斜視図である。
【図５】他の実施例を示す平面図である。
【符号の説明】
１ ケーシング
２ 凝縮器
３ 蒸発器
９ 加湿器
１４ 給気用送風機
１５ 排気用送風機
１６ 給気用フィルタ
１７ 排気用フィルタ
１８ 排気用フィルタ点検扉
１９ 加湿器点検パネル
２２ 給気用フィルタ点検扉
２３ 縮径部
２４ 拡径空室部
２５ ガイドレール
Ａ 排気送風路
Ｂ 給気送風路[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a heat pump air conditioner installed in a ceiling.
[0002]
[Prior art]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2003-42480 Conventionally, the above-mentioned publication is known as a heat pump type air conditioner installed in a ceiling. This air conditioner heat-exchanges outside air with an evaporator to supply air into a room and exhausts the air inside the room to the outside while recovering heat with a condenser, and includes an evaporator and a condenser in a casing. A heat pump is integrally provided. In this casing, there are an air supply air supply path and an exhaust air supply path which are substantially parallel and adjacent to each other. The air supply air supply path is provided with an air supply filter, an evaporator, a humidifier, and an air supply air supply, and an exhaust air supply path. Is provided with an exhaust filter, a condenser, and an exhaust blower.A humidifier inspection panel and an air supply filter inspection door are provided on the outer surface of the casing on the side of the air supply and ventilation path. An exhaust filter inspection door was provided on the outer side of the road.
[0003]
[Problems to be solved by the invention]
Therefore, when installing the air conditioner in the ceiling and performing maintenance such as filters, it is necessary to check from both outer surfaces of the casing, the work is troublesome, and when the ceiling is narrow and workers can not enter It is necessary to provide at least two inspection ports on the ceiling plate so that the outside surface of the device can be accessed, and there is a problem that the equipment cost is high. Therefore, it is an object of the present invention to provide a ceiling-mounted heat pump air conditioner that solves these problems.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, a ceiling-mounted heat pump type air conditioner of the present invention supplies heat to a room by exchanging heat with outside air by an evaporator, and simultaneously recovers heat in the room with a condenser to outdoors. A ceiling-mounted heat pump type air conditioner that exhausts air, comprising, in a casing, an air supply air passage and an exhaust air passage that are substantially parallel to each other, and an air supply filter and the evaporator in the air supply air passage. A humidifier and an air supply blower are provided, and an exhaust filter, the condenser, and an exhaust blower are provided in the exhaust air path, and only the outer surface of the casing on the air supply air path side, an exhaust filter inspection door, A humidifier inspection panel and an air supply filter inspection door are provided, a middle part of the air supply air passage is reduced in diameter, and the air supply blower is arranged on the windward side of the reduced diameter portion. Between the expanded vacant space section on the lee side of the section and the exhaust air passage. Te, a guide rail for holding the exhaust filter slidably, is provided.
[0005]
BEST MODE FOR CARRYING OUT THE INVENTION
FIGS. 1 to 4 show an embodiment of a heat pump air conditioner installed in a ceiling according to the present invention, in which external air is heat-exchanged by an evaporator 3 to supply air into a room and air in the room is condensed by a condenser. Exhaust outdoors while recovering heat in 2. Solid and dotted outline arrows indicate the direction of air flow. In a flat box-shaped casing 1 of this air conditioner, a refrigerant circulation circuit C including an evaporator 3, a condenser 2, and a compressor 4, and a supply air supply passage B and an exhaust air supply passage A, which are adjacent in substantially parallel, are provided. Have. An air supply filter 16, an evaporator 3, a humidifier 9, and an air supply fan 14 are provided in the air supply air path B, and an exhaust filter 17, the condenser 2, the compressor 4, and the exhaust A blower 15 is provided, and only on the outer surface of the casing 1 on the side of the air supply / air supply path, an openable / closable exhaust filter inspection door 18, a detachable humidifier inspection panel 19, and an openable / closable air supply filter inspection door 22 are provided. , An electrical box 26. The air supply filter 16 is provided upstream of the evaporator 3 and the humidifier 9, and the exhaust filter 17 is provided upstream of the condenser 2. The air supply blower 14 is provided downstream of the evaporator 3 and the humidifier 9 as a suction type, and the exhaust blower 15 is provided upstream of the condenser 2 as a push-in type.
[0006]
A midway portion of the air supply / blowing path B is provided with a plate member with a vent to reduce the diameter, and the air supply blower 14 is arranged on the windward side of the reduced diameter portion 23. In the illustrated example, the number of parts is reduced by using the plate member with the vent as a blower mounting member. A guide rail 25 is provided to slidably hold the exhaust filter 17 so as to sandwich the exhaust filter 17 across the enlarged-diameter vacant space 24 downstream of the reduced-diameter portion 23. A hole section through which the exhaust filter 17 is inserted is formed in a partition section that divides the air supply air passage B and the exhaust air passage A. As shown in FIG. 3, if the frame 27 that can be connected to and separated from the exhaust filter 17 is slidably held on the guide rail 25 of the enlarged-diameter vacant space 24, the inside of the ceiling is too small to enter. Even if the exhaust filter inspection door 18 cannot be reached from the exhaust air passage A, after the exhaust filter 17 is inserted, the frame 27 is connected and pushed inward along the guide rail 25 to thereby exhaust the exhaust air. A, the exhaust filter 17 can be easily set so as not to shift, and the exhaust filter 17 can be taken out together by simply pulling out the front frame 27 from the set state. The frame 27 and the exhaust filter 17 are separated and can be separately taken in and out of the inspection port, so that a small inspection port is sufficient, and handling is easy without being obstructed even in a narrow ceiling. The frame 27 is configured to be connectable and separable to the exhaust filter 17 with a hook member or the like. It is to be noted that a structure without the frame 27 is also free.
[0007]
The casing 1 is formed with an outside air inlet 10, an air supply port 11, a return air inlet 12, and an exhaust port 13. The outside air intake 10 and the air supply port 11 are connected to each other through an air supply air passage B to return the air. The intake port 12 and the exhaust port 13 are connected to each other through an exhaust air passage A. The return air inlet 10 is connected to the room via a duct or a suction port, and the air supply port 11 is connected to the room via a duct or an outlet. The outside air inlet 10 and the exhaust port 13 communicate with the outside via a duct or the like.
[0008]
The refrigerant circuit C is configured by connecting pipes of an evaporator 3, a condenser 2, a compressor 4, a liquid receiver (not shown), an expansion valve, and a switching valve for switching the refrigerant circulation direction between forward and reverse. The heat absorption and the heat radiation of the vessel 2 can be switched. In the illustrated example, the frame 5 with the refrigerant circulation circuit C is detachably connected as a suspended shape by a telescopic rod-shaped damper 21 provided inside the casing 1. An opening 6 is formed on the bottom surface of the casing 1 for vertically moving the frame 5 with the refrigerant circulation circuit C in and out, and the opening 6 is covered with a detachable or openable / closable exterior plate 7. A drain pan 20 is detachably provided between the frame 5 and the exterior plate 7. The damper 21 is configured by providing a piston rod in a cylinder filled with gas or oil so as to be able to expand and contract. The damper 21 is configured to delay the descending speed of the frame 5 with the refrigerant circulation circuit C, that is, to exert a resisting force (damping force) only in the descending direction (extending direction of the rod), and to resist in the ascending direction. Makes it easier to get in and out without applying force.
[0009]
In this air conditioner, the outside air taken in from the outside air intake 10 is heat-exchanged in the evaporator 3, and the humidifier 9 is operated as necessary to supply air from the air supply port 11, and at the same time, take in the air from the return air intake 12. The circulating refrigerant in the condenser 2 is heat-exchanged with the returned air (exhaust air from the indoor) to absorb heat or dissipate heat and exhausted from the exhaust port 13 to the outside. At this time, the circulating air is diffused from the reduced diameter portion 23 to the increased diameter vacant space portion 24 in the air supply and blowing passage B, so that noise energy is attenuated by terminal reflection, and a noise reduction effect can be obtained.
[0010]
The arrangement and the structure of the components in the casing 1 can be freely changed. For example, as shown in FIG. 5, the air blower 14 is provided as a push-in type and is provided on the windward side of the evaporator 3 and the humidifier 9. 15 may be provided as a suction type and provided downstream of the condenser 2. In addition, the air conditioner of the above embodiment can be used as an outside air processing air conditioner, and it is also possible to adopt a casing integrated structure in which the frame 5 with the refrigerant circulation circuit C is not taken out and stored from the bottom surface of the casing 1.
[0011]
【The invention's effect】
In the present invention, since the exhaust filter inspection door 18, the humidifier inspection panel 19, and the air supply filter inspection door 22 are provided only on one outer surface of the casing 1, maintenance is easy, and an inspection port is provided on the ceiling plate. Equipment cost can be reduced simply by providing one. The exhaust filter 17 can be smoothly taken in and out by the guide rail 25, and the enlarged-diameter vacant space 24 of the air supply / blowing passage B can be used for both the filter taking out and the muffling chamber, so that the space can be effectively used. Since the noise is low, it can be installed in the ceiling near the room without a silencer, and equipment costs can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a side view of FIG.
FIG. 3 is a partially omitted perspective view seen from the upper surface of a casing.
FIG. 4 is a partially omitted perspective view seen from a bottom surface of a casing.
FIG. 5 is a plan view showing another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Casing 2 Condenser 3 Evaporator 9 Humidifier 14 Air supply blower 15 Exhaust air blower 16 Air supply filter 17 Exhaust filter 18 Exhaust filter inspection door 19 Humidifier inspection panel 22 Air supply filter inspection door 23 Reduction diameter Part 24 enlarged diameter vacant space part 25 guide rail A exhaust air passage B air supply air passage
