JPH038452B2 - - Google Patents
Info
- Publication number
- JPH038452B2 JPH038452B2 JP59221418A JP22141884A JPH038452B2 JP H038452 B2 JPH038452 B2 JP H038452B2 JP 59221418 A JP59221418 A JP 59221418A JP 22141884 A JP22141884 A JP 22141884A JP H038452 B2 JPH038452 B2 JP H038452B2
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- motor
- blade
- air conditioner
- switch
- 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.)
- Expired - Lifetime
Links
- 238000007664 blowing Methods 0.000 claims description 11
- 238000001514 detection method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は空気調和機、特にその吹出口の空気流
吹出し方向の変更に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an air conditioner, and particularly to changing the direction of air flow from its outlet.
第４図は、例えば特公昭57−15296号に示され
た天井吊り形又は壁掛形の空気調和機の吹出部の
断面図である。１は吹出口、２は吹出口１内に設
けられ、軸３を中心として回転して吹出口１の気
流の吹出方向を変える羽根である。又、第５図〜
第７図は羽根２の駆動機構を示し、羽根２の軸３
は電動機４に連結されている。５，６は各々羽根
２によつてオンオフされるスイツチで、普段は閉
じている。スイツチ６を閉じた場合には電動機４
は時計方向に回転し、スイツチ５を閉じた場合に
は電動機４は反時計方向に回転する。７は羽根２
の軸３を回転させるように接続された切換スイツ
チで、リレー８によつて切り換えられ、スイツチ
５，６と選択的に接続される。９は例えば吹出温
度を検知するサーミスタ（感温素子）で、吹出温
度に応じてリレー８を働かせる。吹出温度が高い
場合にはリレー８が働いて切換スイツチ７をスイ
ツチ６側からスイツチ５側に切換える。
FIG. 4 is a cross-sectional view of the outlet of a ceiling-suspended or wall-mounted air conditioner disclosed in, for example, Japanese Patent Publication No. 57-15296. Reference numeral 1 denotes an air outlet, and 2 represents a blade that is provided within the air outlet 1 and rotates around a shaft 3 to change the blowing direction of the airflow from the air outlet 1. Also, Figure 5~
FIG. 7 shows the drive mechanism of the blade 2, and shows the shaft 3 of the blade 2.
is connected to the electric motor 4. 5 and 6 are switches that are turned on and off by blades 2, and are normally closed. When switch 6 is closed, motor 4
rotates clockwise, and when switch 5 is closed, motor 4 rotates counterclockwise. 7 is feather 2
The switch is connected to rotate the shaft 3 of the switch, is switched by a relay 8, and is selectively connected to the switches 5 and 6. Reference numeral 9 denotes a thermistor (temperature sensing element) that detects the temperature of the outlet, for example, and activates the relay 8 according to the temperature of the outlet. When the blowing temperature is high, the relay 8 operates to switch the changeover switch 7 from the switch 6 side to the switch 5 side.
次に、動作を説明する。吹出温度が低い場合は
リレー８は働かず、切換スイツチ７は第７図に示
す位置即ちスイツチ６と接続状態にある。従つ
て、電源２０からの電流はスイツチ６を通つて流
れ、電動機４は第６図において時計方向に回転
し、これによつて羽根２も時計方向に回転し、ス
イツチ６の係合子６ａを押して接点を開く。この
ため、電流は流れなくなり、電動機４は停止す
る。即ち、羽根２の下流側が上を向いた状態で停
止する。 Next, the operation will be explained. When the blowing temperature is low, the relay 8 does not work, and the changeover switch 7 is in the position shown in FIG. 7, that is, in a connected state with the switch 6. Therefore, the current from the power supply 20 flows through the switch 6, causing the motor 4 to rotate clockwise in FIG. Open the contacts. Therefore, current no longer flows and the electric motor 4 stops. That is, the blade 2 stops with its downstream side facing upward.
次に、吹出温度が高くなつた場合は、サーミス
タ９が温度を検知してリレー８が働き、切換スイ
ツチ７がスイツチ５側と接続状態に切り換えられ
る。従つて、電流はスイツチ５の方に流れ、電動
機４は反時計方向に回転し、羽根２がスイツチ５
の係合子５ａを押すと接点が開いて電動機４は停
止する。即ち、羽根２の下流側が下を向いた位置
で停止する。温度が再び低くなつた場合には切換
スイツチ７が再び切換わり、前述と同様にして羽
根２の下流側が上を向く。 Next, when the blowing temperature becomes high, the thermistor 9 detects the temperature, the relay 8 is activated, and the changeover switch 7 is switched to the connection state with the switch 5 side. Therefore, the current flows towards the switch 5, the motor 4 rotates counterclockwise, and the blade 2 moves towards the switch 5.
When the engaging element 5a is pushed, the contact opens and the electric motor 4 stops. That is, it stops at a position where the downstream side of the blade 2 faces downward. When the temperature becomes low again, the changeover switch 7 is switched again so that the downstream side of the blade 2 faces upward in the same manner as described above.
上記のように従来のものは、吹出温度によつて
羽根２の位置を変更し、吹出される気流の向きを
制御するとともに、スイツチ５，６の接点を開く
ことによつて羽根２の位置を検出し、電動機４を
停止させていた。しかるに、羽根２が動作中に外
からの障害物等により動作できなくなつた場合に
はスイツチ５，６の接点は開かれず、電動機４は
通電されたままとなり、羽根２および電動機４は
拘束され続ける。その結果、羽根２の軸３の破壊
や電動機４の巻線焼損等の問題が生じた。
As mentioned above, in the conventional system, the position of the blade 2 is changed depending on the blowing temperature to control the direction of the blown airflow, and the position of the blade 2 is changed by opening the contacts of the switches 5 and 6. was detected and the electric motor 4 was stopped. However, if the blade 2 becomes inoperable due to an external obstacle or the like during operation, the contacts of the switches 5 and 6 will not open, and the motor 4 will remain energized, and the blade 2 and the motor 4 will be restrained. continue. As a result, problems such as destruction of the shaft 3 of the blade 2 and burnout of the winding of the motor 4 occurred.
本発明は上記のような問題点を解決するために
成されたものであり、羽根が拘束された場合でも
羽根の軸や電動機の損傷を防止することができる
空気調和機を提供することを目的とする。 The present invention was made in order to solve the above-mentioned problems, and an object of the present invention is to provide an air conditioner that can prevent damage to the blade shaft and electric motor even when the blades are restrained. shall be.
本発明に係る空気調和機は、吹出口の気流の吹
出方向を変更させる羽根を駆動する電動機の通電
時間を検出する検出手段を設け、この検出手段の
出力に応じて電動機への通電を遮断するものであ
る。
The air conditioner according to the present invention is provided with a detection means for detecting the energization time of the electric motor that drives the blades that change the blowing direction of the airflow from the outlet, and cuts off the energization to the electric motor according to the output of the detection means. It is something.
電動機は通電中に拘束されると、通電時間が長
くなる。従つて、検出手段は電動機の通電時間を
検出することにより電動機の拘束を検出すること
ができ、これに応じて電動機への通電を遮断す
る。
If the electric motor is restrained while being energized, the energizing time becomes longer. Therefore, the detection means can detect the restriction of the electric motor by detecting the energization time of the electric motor, and accordingly interrupts the energization to the electric motor.
以下、本発明の実施例を図面とともに説明す
る。第１図において、１０は電動機４に流れる電
流を検出する電流検知器、１１はマイクロコンピ
ユータ等の制御器、１２は制御器１１によつて制
御される電動機４のオンオフリレーで、１２ａは
その接点である。
Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 10 is a current detector that detects the current flowing through the motor 4, 11 is a controller such as a microcomputer, 12 is an on/off relay for the motor 4 controlled by the controller 11, and 12a is its contact. It is.
次に、上記構成の動作を第２図のフローチヤー
トを用いて説明する。吹出温度に応じて電動機４
が通電され、羽根２の位置が変更される過程は従
来と同じである。羽根２あるいは電動機４が拘束
された時、スイツチ５，６の接点は開かれず、電
動機４は通電され続ける。電動機４が通常に動作
している時に流れる電流値をi0とすると、電動機
４が拘束されているときに流れる電流値はi0より
かなり大きくなる。従つて、電流検知器１０によ
り検出する電流値ｉによつて電動機４をオンオフ
させる。第２図のフローチヤートにおいて、電動
機４が通常に動作しているときは、電流値ｉはi0
に等しいのでステツプ13からステツプ14に進み、
リレー接点１２ａをオンさせて電動機４に通電し
続ける。電動機４が拘束されると電流値ｉはi0よ
り大きくなり、ステツプ13からステツプ15に進
み、リレー接点１２ａをオフさせて電動機４への
通電を停止する。次に、ステツプ16に進み、異常
信号を出力して終了する。 Next, the operation of the above configuration will be explained using the flowchart shown in FIG. Electric motor 4 depending on the blowout temperature
The process of energizing and changing the position of the blade 2 is the same as the conventional one. When the blades 2 or the motor 4 are locked, the contacts of the switches 5, 6 are not opened and the motor 4 continues to be energized. If the current value that flows when the motor 4 is operating normally is i 0 , then the current value that flows when the motor 4 is restrained is considerably larger than i 0 . Therefore, the electric motor 4 is turned on and off according to the current value i detected by the current detector 10. In the flowchart of FIG. 2, when the electric motor 4 is operating normally, the current value i is i 0
is equal to, so proceed from step 13 to step 14,
The relay contact 12a is turned on to continue energizing the motor 4. When the electric motor 4 is restrained, the current value i becomes larger than i0 , and the process proceeds from step 13 to step 15, where the relay contact 12a is turned off and the energization to the electric motor 4 is stopped. Next, the process proceeds to step 16, where an abnormality signal is output and the process ends.
尚、電動機４が拘束された時に流れる電流値ｉ
はi0よりかなり大きくなるのでステツプ13での判
定条件i0はやや高めに設定しても良い。又、上記
実施例では電流検知器１０が検出した電流値によ
つて電動機４を駆動させるリレー１２をオンオフ
していたが、羽根２を動作させてスイツチ５，６
をオフさせるのに要する時間は限られているので
第３図に示したフローチヤートのステツプ18に示
すように、電動機４等への通電時間Ｔが正常に動
作する時間T0より長くなればステツプ15に進ん
でリレー接点１２ａをオフさせるようにしても上
記実施例と同様の効果を有し、しかもモータ電流
は通電初期にも増大するので誤検出の恐れもある
が、通電時間によればそのような恐れもない。な
お、ステツプ17では電動機４に通電が開始された
か否かを電流検知器１０によつて判断している。 In addition, the current value i that flows when the electric motor 4 is restrained
is considerably larger than i 0 , so the judgment condition i 0 in step 13 may be set slightly higher. Further, in the above embodiment, the relay 12 that drives the motor 4 is turned on and off based on the current value detected by the current detector 10, but the switch 5 and 6 is turned on and off by operating the blade 2.
Since the time required to turn off the motor is limited, as shown in step 18 of the flowchart shown in Fig. 3, if the time T for energizing the motor 4 etc. is longer than the time T0 for normal operation, step 1 is executed. Even if the relay contact 12a is turned off in step 15, the same effect as in the above embodiment is obtained, and since the motor current increases even at the initial stage of energization, there is a risk of false detection, but according to the energization time, There is no such fear. Incidentally, in step 17, it is determined by the current detector 10 whether or not energization of the electric motor 4 has started.
以上のように本発明においては、吹出方向変更
時に電動機が直接又は羽根を介して拘束された場
合に検出手段により電動機の拘束を検知し、電動
機への通電を遮断するようにしており、羽根の駆
動機構および電動機の損傷を防止することができ
る。しかも、電動機の拘束を通電時間により検出
しているので、誤検出の恐れがない。
As described above, in the present invention, when the electric motor is restrained directly or through the blades when the blowing direction is changed, the detection means detects the restraint of the motor and cuts off the power supply to the motor. Damage to the drive mechanism and electric motor can be prevented. Furthermore, since the motor is detected based on the energization time, there is no risk of false detection.
第１図および第２図は夫々本発明の第１の実施
例に係る空気調和機の吹出方向変更部の回路図お
よびその動作を示すフローチヤート、第３図は本
発明の第２の実施例に係る吹出方向変更部の動作
を示すフローチヤート、第４図は従来の空気調和
機の吹出口の断面図、第５図〜第７図は夫々従来
の空気調和機の吹出方向変更部の正面図、そのｂ
−ｂ線断面図および回路図である。
１……吹出口、２……羽根、３……軸、４……
電動機、５，６……スイツチ、７……切換スイツ
チ、８……リレー、９……サーミスタ、１０……
電流検知器、１１……制御器、１２……オンオフ
リレー。尚、図中同一符号は同一又は相当部分を
示す。
1 and 2 are a circuit diagram and a flowchart showing the operation of an air blowing direction changing section of an air conditioner according to a first embodiment of the present invention, respectively, and FIG. 3 is a flowchart showing a second embodiment of the present invention. FIG. 4 is a cross-sectional view of the air outlet of a conventional air conditioner, and FIGS. 5 to 7 are front views of the air direction changing portion of the conventional air conditioner. Figure, part b
-B sectional view and circuit diagram. 1...Air outlet, 2...Blade, 3...Shaft, 4...
Electric motor, 5, 6... switch, 7... changeover switch, 8... relay, 9... thermistor, 10...
Current detector, 11...controller, 12...on/off relay. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
する羽根と、吹出口の吹出温度に応じて正逆転し
て羽根を駆動する電動機と、羽根の吹出方向変更
動作終了時に電動機を停止させる手段を備えた空
気調和機において、電動機への通電時間が所定時
間以上になつたことにより電動機の拘束を検出す
る手段と、電動機の拘束が検出された際に電動機
への通電を遮断する手段を備えたことを特徴とす
る空気調和機。1 A vane that changes the blowing direction of the airflow blown out from the air outlet, an electric motor that drives the vane in forward and reverse directions depending on the blowing temperature of the air outlet, and a means for stopping the electric motor when the operation of changing the blowing direction of the blade is completed. In the air conditioner equipped with the air conditioner, the air conditioner is equipped with a means for detecting restraint of the electric motor when the electric motor is energized for a predetermined time or more, and a means for cutting off electric power to the electric motor when restraint of the electric motor is detected. An air conditioner characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59221418A JPS6199048A (en) | 1984-10-22 | 1984-10-22 | Air-conditioning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59221418A JPS6199048A (en) | 1984-10-22 | 1984-10-22 | Air-conditioning machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6199048A JPS6199048A (en) | 1986-05-17 |
| JPH038452B2 true JPH038452B2 (en) | 1991-02-06 |
Family
ID=16766424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59221418A Granted JPS6199048A (en) | 1984-10-22 | 1984-10-22 | Air-conditioning machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6199048A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6380177A (en) * | 1986-09-24 | 1988-04-11 | 株式会社三協精機製作所 | Method of starting motor |
| JPH02164611A (en) * | 1988-12-16 | 1990-06-25 | Nissan Motor Co Ltd | Air-conditioning air blowoff opening control device |
| JP2997648B2 (en) * | 1996-08-05 | 2000-01-11 | 株式会社日立製作所 | Air conditioner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585498A (en) * | 1981-07-01 | 1983-01-12 | Nippon Denso Co Ltd | Speed controller for wind blowing fan |
-
1984
- 1984-10-22 JP JP59221418A patent/JPS6199048A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585498A (en) * | 1981-07-01 | 1983-01-12 | Nippon Denso Co Ltd | Speed controller for wind blowing fan |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6199048A (en) | 1986-05-17 |
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