JPH03177743A - Air conditioner - Google Patents
Air conditionerInfo
- Publication number
- JPH03177743A JPH03177743A JP1318436A JP31843689A JPH03177743A JP H03177743 A JPH03177743 A JP H03177743A JP 1318436 A JP1318436 A JP 1318436A JP 31843689 A JP31843689 A JP 31843689A JP H03177743 A JPH03177743 A JP H03177743A
- Authority
- JP
- Japan
- Prior art keywords
- air
- rotation speed
- heat
- rotational frequency
- air quantity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 238000001514 detection method Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、送風機の自動風量調節システムを備えた空
気調和機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioner equipped with an automatic air volume control system for a blower.
第３図は従来の空気調和機のシステムの構成図である。 FIG. 3 is a block diagram of a conventional air conditioner system.
図においてｌは熱媒体と被熱交換空気とを熱交換させる
熱交換器、２は上記熱交換器ｌに被熱交換空気を供給す
る送風機で、ファン２ｃ、ファンモータ２ｄから構成さ
れている。３は空気吸込口４及び空気吹出口５を有し、
上記熱交１ａ ３’Ａ１を通る風路を構成する外箱、７
は上記空気吸込口４の外側に取り付けられ吸込み空気を
導く吸込ダクト、８は上記空気吹出口５の外側に取り付
けられ吹出し空気を導く吹出ダクト、８ａは吹出ダクト
８に取り付けられた圧力損失調節用可変ダンパーである
。なお、上記吸込ダクト７及び吹出ダクト８は空気調和
機据付は時に取り付け、その形状や寸法は多種多様であ
り、ダクト内の圧力田失も同様に一樺でなく空気調和機
の風量は設計値と一致しない場合が多い。このため据付
は時に第４図に示す方法によりダクト内の圧力）過失を
設計値に調節して設計風量を得ていた。第４図は縦軸が
圧力を過失、横軸が風量を示し、送風機２の静圧と呟量
の関係を示すＰ−Ｑ特性は図中３曲線で示されている。In the figure, l is a heat exchanger for exchanging heat between the heat medium and the air to be heat exchanged, and 2 is a blower for supplying the air to be heat exchanged to the heat exchanger l, which is composed of a fan 2c and a fan motor 2d. 3 has an air inlet 4 and an air outlet 5,
An outer box forming an air path passing through the heat exchanger 1a 3'A1, 7
8 is a suction duct attached to the outside of the air suction port 4 to guide the intake air; 8 is a blowout duct attached to the outside of the air outlet 5 to guide the blowout air; and 8a is a pressure loss adjusting air duct attached to the blowout duct 8. It is a variable damper. In addition, the above-mentioned suction duct 7 and outlet duct 8 are sometimes attached when installing an air conditioner, and their shapes and dimensions vary widely, and the pressure loss inside the duct is also not constant, and the air volume of the air conditioner is determined by the design value. often do not match. For this reason, during installation, the pressure inside the duct was sometimes adjusted to the design value using the method shown in Figure 4 to obtain the design air volume. In FIG. 4, the vertical axis shows the pressure, the horizontal axis shows the air volume, and the P-Q characteristic showing the relationship between the static pressure of the blower 2 and the air flow is shown by three curves in the figure.
ダクト内圧力損失は図中す曲線にその特性が示されてい
る。この両曲線の交点が初期運転時の状態を示す作動点
Ｃであり、この作動点Ｃから横軸に降ろした垂線の交点
が初期の風量Ｑとなる。ここで風量Ｑを設計風量Ｑ゛に
修正するため圧力唄失調整用可変ダンパー８ａを操作し
てダクト内圧力［過失特性をｂ′凸曲線変化させ、作動
点Ｃに移動させて設計風ＩＱ′を得るという風量１１節
作業を行なっていた。The characteristics of the pressure loss inside the duct are shown in the curve in the figure. The intersection of these two curves is the operating point C indicating the state during initial operation, and the intersection of the perpendicular line drawn from this operating point C to the horizontal axis is the initial air volume Q. Here, in order to correct the air volume Q to the design air volume Q', the variable damper 8a for pressure loss adjustment is operated to change the duct internal pressure [failure characteristic b' convex curve, move it to the operating point C, and move it to the design air volume IQ' They were working on an 11-section air flow to obtain the required amount of air.
（発明が解決しようとする課題〕
従来の空気調和機の風量調節は以上のように行なわれて
いたので、空気調和機据付は時の風量調節作業に多くの
時間と労力が必要であるという問題点があった。(Problem to be Solved by the Invention) Since the air volume of conventional air conditioners has been adjusted as described above, there is a problem that a lot of time and effort is required to adjust the air volume when installing an air conditioner. There was a point.
この発明は上記のようなｒｉａ題を解消するためになさ
れたもので、風量調節作業を自動化して据付は作業性を
改善できるようにした空気調和機を得ることを目的とす
る。This invention has been made to solve the above-mentioned air conditioner problems, and aims to provide an air conditioner that can automate the air volume adjustment work and improve installation workability.
この発明に係わる空気調和機は、熱媒体と被熱交換空気
とを熱交換させる熱交換器、この熱交換器に被熱交換空
気を供給する回転数検知センサ、回転数制御ｖａ器、フ
ァン、ファンモータから構成される回転数検出制御機能
を有する送′ｆ＠機、空気吸込口および空気吹出口を有
し上記熱交ｌ１ｌＩ器を通る風路を設けた外箱、上記空
気吸込口および空気吹出口の外側にそれぞれ備えられた
ダクトから構成された空気調和機において、上記ダクト
内の圧力損失の変化に応じて予め入力しておいた送風機
の静圧−風量、回転数−風量特性を基にモータの回転数
検知により風量を自己判断すると共に、回転数制御機器
によりファンモータのトルク特性を調節し自動的に設定
風量を供給できる制御システムを備えたことを特徴とす
る。The air conditioner according to the present invention includes a heat exchanger that exchanges heat between a heat medium and air to be heat exchanged, a rotation speed detection sensor that supplies air to be heat exchanged to this heat exchanger, a rotation speed control VA device, a fan, A feeder with a rotation speed detection control function consisting of a fan motor, an outer box having an air inlet and an air outlet and an air path passing through the heat exchanger, the air inlet and the air In an air conditioner consisting of ducts installed outside each outlet, the static pressure-air volume and rotational speed-air volume characteristics of the blower, which have been input in advance, are calculated based on the changes in pressure loss in the ducts. The present invention is characterized by being equipped with a control system that can self-determine the air volume by detecting the rotation speed of the motor, adjust the torque characteristics of the fan motor using a rotation speed control device, and automatically supply the set air volume.
この発明においては、制御システムを備えたことで、フ
ァンモータの回転数を検知し、予め入力しておいた送風
機特性と比較して風量を自己判断し、設定風量に調節す
ることができる。In this invention, by providing a control system, it is possible to detect the rotation speed of the fan motor, compare it with the blower characteristics inputted in advance, self-determine the air volume, and adjust the air volume to the set air volume.
以下、この発明の一実施例を図について説明する。第１
図はこの発明による空気調和機の構成図であって、図に
おいて、１は熱媒体と被熱交換空気とを熱交換させる熱
交換器、２はこの熱交換器ｌに被熱交換空気を供給する
回転数検出制御機能を有する送風機で、回転数検知セン
サ２ａ、回転数制１７ｆＡＪ １ｍ、器２ｂ、ファン２
ｃおよびファンモータ２ｄから構成されている。また、
上記回転数制御機器２ｂは入力された設定風量データ、
回転数検知センサ２ａで検知された送風機２の回転数、
ファンモータ２ｄのトルク時性の変更機構、予め入力さ
れた上記各トルク特性における送風機２の静圧−風量特
性、回転数−風量特性をもとに回転数組制御を行なう制
御部で構成される。An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram of an air conditioner according to the present invention, and in the figure, 1 is a heat exchanger for exchanging heat between a heat medium and air to be heat exchanged, and 2 is a supply of air to be heat exchanged to this heat exchanger l. A blower with a rotation speed detection control function, which includes a rotation speed detection sensor 2a, a rotation speed control 17fAJ 1m, a device 2b, and a fan 2.
c and a fan motor 2d. Also,
The rotation speed control device 2b has input set air volume data,
The rotation speed of the blower 2 detected by the rotation speed detection sensor 2a,
It is composed of a mechanism for changing the torque characteristic of the fan motor 2d, and a control section that performs rotation speed set control based on the static pressure-air volume characteristics and rotation speed-air volume characteristics of the blower 2 in each of the above-mentioned torque characteristics input in advance. .
なお、外箱３、空気吸込口４、空気吹出口５、吸込ダク
ト７および吹出ダクト８は第３図に示した従来システム
と同一であるので同一符号を付して説明は省略する。Note that the outer box 3, air suction port 4, air blowout port 5, suction duct 7, and blowout duct 8 are the same as those in the conventional system shown in FIG. 3, and therefore are given the same reference numerals and a description thereof will be omitted.
次にこの発明による動作を第２図について説明する。空
気調和機の初期運転時、第２図中の作動点Ｃ″？！？！
運転われると、回転数検知センサ２ａにより回転数Ｎが
検知される。ここで、送風機２の静圧−風量特性を図中
３曲線、回転数−風を特性を４曲線とすると回転数−風
量特性ｄをもとに検知された回転数Ｎより初期風量Ｑが
、さらにこの作動点Ｃよりダクト内抵抗曲線すが得られ
る２次に設定風量αを得るために一転数制御Ｗｉ器２ｂ
により送風機２の特性を変更し、作動点がＣとなるよう
な静圧−風量特性ａ′、回転数−風量特性ｄ′を選択す
ると、その時の回転数はＫに変化する。このような方法
により設定風量Ｑ′は、自動的に求められる。Next, the operation according to the present invention will be explained with reference to FIG. During the initial operation of the air conditioner, operating point C″ in Figure 2?!?!
When the vehicle is operated, the rotation speed N is detected by the rotation speed detection sensor 2a. Here, if the static pressure-airflow characteristic of the blower 2 is represented by 3 curves in the figure, and the rotational speed-airflow characteristic is represented by 4 curves, then the initial airflow Q is determined from the rotational speed N detected based on the rotational speed-airflow characteristic d. Furthermore, in order to obtain the secondary set air volume α, which is obtained from the duct internal resistance curve from this operating point C, the single rotation number control Wi device 2b
When the characteristics of the blower 2 are changed and the static pressure-air volume characteristic a' and rotational speed-airflow characteristic d' are selected such that the operating point becomes C, the rotational speed at that time changes to K. By such a method, the set air volume Q' can be automatically determined.
以上説明したように、この発明によれば、ダクト内圧力
損失の変化に応じてファンモータの回転数を検知、Ｕ８
節し、設定風量を自動的に供給できる制御システムを備
えたことにより、空気調和機据付は時の風量調節作業が
不要となり、これによって、据付は作業性を大幅に改善
することができる。As explained above, according to the present invention, the rotation speed of the fan motor is detected according to the change in the pressure loss inside the duct, and the U8
By equipping the system with a control system that can automatically supply the set air volume, there is no need to adjust the air volume when installing an air conditioner, which greatly improves installation work efficiency.
第１図はこの発明の一実施例による空気調和機の構成図
、第２図はこの発明による空気調和機の・動作を説明す
るための風量特性図、第３図および第４図は従来の空気
調和機の構成国とその動作説明のための風量特性図であ
る。
ｌ・・・熱交換器、２・・・送風機、２ａ・・・回転数
検知センサ、２ｂ・・・回転数制御機器、２Ｃ・・・フ
ァン、２ｄ・・・ファンモータ、３・・・外箱、４・・
・空気吸込口、５・・・空気吹出口、７・・・吸込ダク
ト、８・・・吹出ダクト。
なお、図中同一符号は同−又は相当部分を示す。FIG. 1 is a block diagram of an air conditioner according to an embodiment of the present invention, FIG. 2 is an air volume characteristic diagram for explaining the operation of the air conditioner according to the present invention, and FIGS. 3 and 4 are diagrams of conventional air conditioners. It is an air volume characteristic diagram for explaining the constituent countries of the air conditioner and its operation. l...Heat exchanger, 2...Blower, 2a...Rotation speed detection sensor, 2b...Rotation speed control device, 2C...Fan, 2d...Fan motor, 3...Outside Box, 4...
・Air suction port, 5...Air outlet, 7...Suction duct, 8...Blowout duct. Note that the same reference numerals in the figures indicate the same or equivalent parts.
Claims (1)
熱交換器に被熱交換空気を供給する回転数検知センサ、
回転数制御機器、ファン、ファンモータから構成される
回転数検出制御機能を有する送風機、空気吸込口および
空気吹出口を有し上記熱交換器を通る風路を設けた外箱
、上記空気吸込口および空気吹出口の外側にそれぞれ備
えられたダクトから構成された空気調和機であって、上
記ダクト内の圧力損失の変化に応じて予め入力しておい
た送風機の静圧−風量、回転数−風量特性を基にモータ
の回転数検知により風量を自己判断すると共に、回転数
制御機器によりファンモータのトルク特性を調節し自動
的に設定風量を供給できる制御システムを備えたことを
特徴とする空気調和機。A heat exchanger that exchanges heat between a heat medium and air to be heat exchanged, a rotation speed detection sensor that supplies air to be heat exchanged to this heat exchanger,
A blower with a rotation speed detection control function consisting of a rotation speed control device, a fan, and a fan motor, an outer box having an air intake port and an air outlet and an air path passing through the heat exchanger, and the air intake port. and an air conditioner consisting of a duct provided outside the air outlet, the static pressure - air volume, rotation speed - of the blower being inputted in advance according to changes in pressure loss in the duct. An air system characterized by being equipped with a control system that can self-determine the air volume by detecting the rotation speed of the motor based on the air volume characteristics, and can automatically supply the set air volume by adjusting the torque characteristics of the fan motor using a rotation speed control device. harmonizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1318436A JPH03177743A (en) | 1989-12-06 | 1989-12-06 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1318436A JPH03177743A (en) | 1989-12-06 | 1989-12-06 | Air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03177743A true JPH03177743A (en) | 1991-08-01 |
Family
ID=18099128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1318436A Pending JPH03177743A (en) | 1989-12-06 | 1989-12-06 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03177743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016166698A (en) * | 2015-03-09 | 2016-09-15 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner indoor unit |
| US20180178617A1 (en) * | 2016-12-27 | 2018-06-28 | Cnh Industrial America Llc | Airflow control system of a work vehicle |
-
1989
- 1989-12-06 JP JP1318436A patent/JPH03177743A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016166698A (en) * | 2015-03-09 | 2016-09-15 | ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド | Air conditioner indoor unit |
| US20180178617A1 (en) * | 2016-12-27 | 2018-06-28 | Cnh Industrial America Llc | Airflow control system of a work vehicle |
| US10933713B2 (en) * | 2016-12-27 | 2021-03-02 | Cnh Industrial America Llc | Airflow control system of a work vehicle |
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