JPH04158135A - Device for cooling electric equipment in outdoor machine - Google Patents

Device for cooling electric equipment in outdoor machine

Info

Publication number
JPH04158135A
JPH04158135A JP28503790A JP28503790A JPH04158135A JP H04158135 A JPH04158135 A JP H04158135A JP 28503790 A JP28503790 A JP 28503790A JP 28503790 A JP28503790 A JP 28503790A JP H04158135 A JPH04158135 A JP H04158135A
Authority
JP
Japan
Prior art keywords
temperature
fan
electric equipment
compressor
electrical component
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
Application number
JP28503790A
Other languages
Japanese (ja)
Inventor
Akinori Kinugawa
昭徳 衣川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Ecology Systems Co Ltd
Original Assignee
Matsushita Seiko Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Seiko Co Ltd filed Critical Matsushita Seiko Co Ltd
Priority to JP28503790A priority Critical patent/JPH04158135A/en
Publication of JPH04158135A publication Critical patent/JPH04158135A/en
Pending legal-status Critical Current

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  • Control Of Temperature (AREA)

Abstract

PURPOSE:To lower the temperature at an electric equipment inside an outdoor unit when the electric equipment is heated by direct sunlight by providing an electric equipment which controls the compressor and the fan in such a manner as to automatically actuate the fan when the temperature inside the electric control part rises under solar heat while the compressor is at rest. CONSTITUTION:When, in the summer, the sun directly shines while the compressor 2 and the fan 3 are at rest, the temperature rises sharply inside an electric equipment 4 through this equipment has a hole 12 and an opening 11. When thus heated, a temperature sensor 13 at the electric control part outputs information to a microcomputer 8 to make the microcomputer 8 output a signal to a driver 15 and the driver 15 in turn outputs a signal which, through a relay 16, actuates only the fan 3. With the fan 3 in action, a current of air flows into the electric control part 4 thorough the hole 12 and cools the devices and parts therein and flows out through the opening 11 toward the fan 3. Thus the temperature inside the electric equipment 4 can be prevented from increasing even under exposure to direct rays of the sun.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、室内機と室外機とを備えた分離型空気調和機
における室外機の電装部冷却装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cooling device for the electrical components of an outdoor unit in a separate air conditioner having an indoor unit and an outdoor unit.

従来の技術 従来、この種の制御は第3図に示すような構成で行われ
ていた。すなわち、分離型空気調和機の室外機1内に圧
縮機2と、送風機3と、前記圧縮機2と、前記送風機3
とを制御する電装部4を備え、前記電装部4内のパワー
トランジスタ5の温度を検知する温度センサー6と、外
気の湿度を検知する外気温度センサー7があり、それぞ
れのセンサー6.7からの情報を前記電装部4内のプリ
ント基板9に設けられたマイクロコンピュータ8が認識
し、このマイクロコンピュータ8は、前記圧縮機2.前
記送風機3を制御する信号を出すよう(こしていた。ま
た前工己マイクロコンピュータ8が前記各センサー6.
7からの情報を認識し、前記送風機3のI11御をする
のは、前記圧縮機2が運転しているときのみであるとい
う構成であった。
BACKGROUND ART Conventionally, this type of control has been performed with a configuration as shown in FIG. That is, the outdoor unit 1 of the separate air conditioner includes a compressor 2, a blower 3, the compressor 2, and the blower 3.
There is a temperature sensor 6 that detects the temperature of the power transistor 5 in the electrical component 4, and an outside air temperature sensor 7 that detects the humidity of the outside air. The information is recognized by a microcomputer 8 provided on a printed circuit board 9 in the electrical equipment section 4, and this microcomputer 8 is connected to the compressor 2. A microcomputer 8 was used to output signals to control the blower 3. Also, a microcomputer 8 was used to control each sensor 6.
The configuration was such that the information from 7 is recognized and the I11 control of the blower 3 is performed only when the compressor 2 is operating.

発明が解決しようとする課題 このような従来の構成では、電装部4が圧縮機2の上方
に位置するため直射日光の影響を受は易(、この直射日
光により前記電装部4内の温度が異常に上がり、前記電
装部4内のプリント基板9に実装されている種々の部品
の劣化が早められ、電装部4の故障事故を誘起するとい
う課題があったつ 本発明はこのような課題を解決するもので、圧縮機が停
止しているときでも、直射日光で電装部内の温度が上が
ると、自動的に送風機を運転させ、電装部内の温度を下
げることを目的とするものである。
Problems to be Solved by the Invention In such a conventional configuration, since the electrical component 4 is located above the compressor 2, it is easily affected by direct sunlight. The present invention solves this problem. Even when the compressor is stopped, if the temperature inside the electrical equipment rises due to direct sunlight, the blower is automatically operated to lower the temperature inside the electrical equipment.

課題を解決するための手段 この課題を解決するために本発明は、室外機内部に圧縮
機と、送風機とを制御する電装部を備え、前記電装部内
にこの電装部内の温度を検知するための電装部温度セン
サーを備え、この電装部温度センサーから直射日光によ
り発生する温度上昇の信号をマイクロコンピュータに出
力して、このマイクロコンピュータよりの信号をドライ
バーに出力して、このドライバーの出力信号で開閉する
リレーを介して前記送風機のみを運転させて、室外機の
電装部を冷却してなる電装部冷却装置を構成するもので
ある。
Means for Solving the Problems In order to solve this problem, the present invention includes an electric component for controlling a compressor and a blower inside the outdoor unit, and a device for detecting the temperature inside the electric component. Equipped with an electrical component temperature sensor, this electrical component temperature sensor outputs a signal of temperature rise caused by direct sunlight to a microcomputer, the signal from this microcomputer is output to a driver, and the output signal of this driver is used to open/close the device. This constitutes an electrical component cooling device that cools the electrical component of the outdoor unit by operating only the blower via the relay.

作   用 この構成により、室外機の圧縮機が停止しているときで
も、直射日光による温度上昇があった場合、電装部温度
センサーにより温度を検出しこの検出した検出信号を、
マイクロコンピュータに出力し、このマイクロコンピュ
ータよりトライ/<−に送風機の運転信号を出力し、こ
のドライバーの出力信号によって開閉するリレーを介し
て送風機を運転させ電装部内の温度を下げることとなる
With this configuration, even when the compressor of the outdoor unit is stopped, if the temperature rises due to direct sunlight, the temperature is detected by the electrical component temperature sensor and the detected detection signal is sent to the
The microcomputer outputs a blower operation signal to try/<-, and the blower is operated via a relay that opens and closes depending on the driver's output signal to lower the temperature inside the electrical equipment.

実  施  例 以下、本発明の一実施例を第1図、第2図を参照しなが
ら説明する。なお、従来の技術に示した符号と同一の符
号は同一物を示し、説明は省略する。すなわち、第2図
に示す空気調和機の室外機1の電装部4には、仕切板1
0の一部を貫通して電装部4の内部とを連絡する開口部
1】と、電装部4の下面の中央部に設けられた穴12を
設けている。一方、電装部4の内部には、電装部4内の
温度を検出する電装部湿度センサー13を設けて、高温
度になると送風機3を運転するようにしている。また、
前記穴12は、前記室外機1の底板1aに設けた排水口
(図示せず)と空気が流通するようにしている。第1図
においてプリント基板9は、電装部1度センサー13を
備え、この電装部温度センサー13は制限抵抗14を介
して電源に接続され、他方はグランド側に接続されてお
り、前記電装部1M度センサー13と前記M限抵抗14
との間から出力される信号を前記マイクロコンピュータ
8が受けとり、その受けとった信号が異常温度の信号で
あるときに、前記マイクロコンピュータ8はドライバー
15に信号を出方し、このドライバー15の出力信号で
開閉するリレー16を設けている。また、このリレー1
6は前5己送風機3を駆動する構成となっている。上記
構成において、通常の運転時は、圧縮機2.送i機3が
運転され、空調とともに電装部4内は送風機3の誘引に
より、底板1aに設けている排水穴や、他の隙間(いず
れも図示せず)から空気が入り、穴12を通り電装部4
の内部の部品を冷却するとともに、パワートランジスタ
5に取り付いている温度センサー6によって送風機3を
運転し、パワートランジスタ5も冷却しながら開口部1
1より放出され、電装部4の内部やパワートランジスタ
5の冷却を行うのである。次に圧縮機2や送風機3が停
止しているときで、日光が直射する夏期においては、電
装部4内の穴12や開口部11があるにもかかわらず、
非常に高湿となるがら、そのときは、電装置温度センサ
ー13が、マイクロコンピュータ8に情報出力し、この
マイクロコンピュータ8よりドライバー15に出力し、
ドライバー15からの出力信号によりリレー16を介し
て送風機3のみが運転される。この送風機3の運転によ
り、穴12より空気が流入し、電装部4の内部の部品を
冷却し、開口部11より送風機3側へ吹き出されて電装
部4の内部の直射日光による温度上昇を防止するのであ
る。なお本実施例では、パワートランジスタ用の温度セ
ンサー6と、電装部温度センサー13の2個の温度セン
サーを使用して電装部内の温度低下をはかったが、パワ
ートランジスタ用の温度センサー6を一個使用すること
で電装部4内の冷却をすることも容易に考えられるので
ある。
Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Note that the same reference numerals as those shown in the prior art indicate the same thing, and the explanation will be omitted. That is, the electrical equipment section 4 of the outdoor unit 1 of the air conditioner shown in FIG.
An opening 1 that penetrates a part of the electrical equipment section 4 and communicates with the inside of the electrical equipment section 4, and a hole 12 that is provided in the center of the lower surface of the electrical equipment section 4. On the other hand, an electrical component humidity sensor 13 is provided inside the electrical component 4 to detect the temperature inside the electrical component 4, and the blower 3 is operated when the temperature becomes high. Also,
The hole 12 allows air to flow through a drain port (not shown) provided in the bottom plate 1a of the outdoor unit 1. In FIG. 1, the printed circuit board 9 includes an electrical component temperature sensor 13, which is connected to a power source via a limiting resistor 14, and the other end is connected to the ground side. degree sensor 13 and the M limit resistor 14
The microcomputer 8 receives a signal output from between the two, and when the received signal is an abnormal temperature signal, the microcomputer 8 outputs a signal to the driver 15, and the output signal of the driver 15 is A relay 16 that opens and closes is provided. Also, this relay 1
6 is configured to drive the front blower 3. In the above configuration, during normal operation, compressor 2. When the blower 3 is operated, air enters the inside of the electrical component 4 along with the air conditioning through the drainage hole provided in the bottom plate 1a and other gaps (none of which are shown) due to the induction of the blower 3, and passes through the hole 12. Electrical section 4
At the same time, the blower 3 is operated by the temperature sensor 6 attached to the power transistor 5, and the opening 1 is cooled while also cooling the power transistor 5.
1 and cools the inside of the electrical component 4 and the power transistor 5. Next, when the compressor 2 and the blower 3 are stopped and there is direct sunlight in the summer, despite the holes 12 and openings 11 in the electrical component 4,
When the humidity is extremely high, the electrical device temperature sensor 13 outputs information to the microcomputer 8, which outputs information to the driver 15.
Only the blower 3 is operated by the output signal from the driver 15 via the relay 16. When the blower 3 operates, air flows in through the hole 12, cools the internal parts of the electrical component 4, and is blown out from the opening 11 toward the blower 3 to prevent temperature rise inside the electrical component 4 due to direct sunlight. That's what I do. In this embodiment, two temperature sensors, the temperature sensor 6 for the power transistor and the electrical component temperature sensor 13, were used to reduce the temperature inside the electrical component, but one temperature sensor 6 for the power transistor was used. By doing so, it is easily possible to cool the inside of the electrical equipment section 4.

発明の効果 前記実施例の説明より明らかなように本発明は、電装部
内の温度を検知する電装部温度センサーからの信号を、
マイクロコンピュータに取り込み、このマイクロコンピ
ュータよりドライバーに信号を出力し、リレーを介して
送風機を運転させる構成としたから、圧縮機を運転して
いないときでも異常な温度にならないように電装部内部
の温度を下げ、電装部内部の半導体、コンデンサーなど
が熱によって劣化することを防止できることができると
ともに、耐久性を向上させ寿命を長くすることができる
などの効果を有するものである。
Effects of the Invention As is clear from the description of the above embodiments, the present invention provides a signal from an electrical component temperature sensor that detects the temperature inside the electrical component.
The microcomputer outputs a signal to the driver, and the blower is operated via a relay, so even when the compressor is not operating, the temperature inside the electrical components can be controlled to prevent abnormal temperatures. This has the effect of lowering the heat and preventing semiconductors, capacitors, etc. inside the electrical components from deteriorating due to heat, as well as improving durability and extending the lifespan.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例による室外機の電装部冷却装
置のブロック構成図、第2図は同本発明の室外機の電装
部冷却装置の構成図、第3図は従来の空気調和機室外機
の構成図である。 1・・・・・・室外機、2・・・・・・圧縮機、3・・
・・・・送風機、4・・・・・・電装部、8・・・・・
・マイクロコンピュータ、13・・・・・・電装部温度
センサー、15・・・・・・ドライバー、16・・・・
・・リレー。 代理人の氏名 弁理士小蝦治 明ほか2名第1図 1−49L夙 2−万If機 B−−一マイクロJンど0ニーター 第 3 図
Fig. 1 is a block diagram of an electrical cooling device for an outdoor unit according to an embodiment of the present invention, Fig. 2 is a block diagram of an electrical cooling device for an outdoor unit according to the invention, and Fig. 3 is a conventional air conditioner. It is a block diagram of an outdoor unit. 1...Outdoor unit, 2...Compressor, 3...
...Blower, 4...Electrical section, 8...
・Microcomputer, 13...Electrical component temperature sensor, 15...Driver, 16...
··relay. Name of agent Patent attorney Akira Koeji and two others Figure 1-49L 20,000 If Machine B--1 Micro J&D 0 Kneeter Figure 3

Claims (1)

【特許請求の範囲】[Claims]  室外機内部に圧縮機と、送風機とを制御する電装部を
備え、前記電装部内にこの電装部内の温度を検知するた
めの電装部温度センサーを備え、この電装部温度センサ
ーから直接日光により発生する温度上昇の信号をマイク
ロコンピュータに出力して、このマイクロコンピュータ
の信号をドライバーに出力して、このドライバーの出力
信号で開閉するリレーを介して前記送風機のみを運転さ
せて、室外機の電装部を冷却してなる室外機の電装部冷
却装置。
The outdoor unit includes an electrical component that controls the compressor and the blower, and the electrical component includes an electrical component temperature sensor for detecting the temperature within the electrical component, and the electrical component temperature sensor detects the temperature generated by direct sunlight. A temperature rise signal is output to a microcomputer, the signal from this microcomputer is output to a driver, and only the blower is operated via a relay that opens and closes based on the output signal of this driver, thereby controlling the electrical equipment of the outdoor unit. A cooling device for the electrical components of the outdoor unit.
JP28503790A 1990-10-22 1990-10-22 Device for cooling electric equipment in outdoor machine Pending JPH04158135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28503790A JPH04158135A (en) 1990-10-22 1990-10-22 Device for cooling electric equipment in outdoor machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28503790A JPH04158135A (en) 1990-10-22 1990-10-22 Device for cooling electric equipment in outdoor machine

Publications (1)

Publication Number Publication Date
JPH04158135A true JPH04158135A (en) 1992-06-01

Family

ID=17686345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28503790A Pending JPH04158135A (en) 1990-10-22 1990-10-22 Device for cooling electric equipment in outdoor machine

Country Status (1)

Country Link
JP (1) JPH04158135A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103363719A (en) * 2012-03-28 2013-10-23 三菱电机株式会社 Refrigeration cycle apparatus and outdoor heat source unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103363719A (en) * 2012-03-28 2013-10-23 三菱电机株式会社 Refrigeration cycle apparatus and outdoor heat source unit
CN103363719B (en) * 2012-03-28 2015-09-30 三菱电机株式会社 Refrigerating circulatory device and outdoor heat source unit
EP2645017A3 (en) * 2012-03-28 2016-04-27 Mitsubishi Electric Corporation Refrigeration cycle apparatus and outdoor heat source unit
US9551515B2 (en) 2012-03-28 2017-01-24 Mitsubishi Electric Corporation Refrigeration cycle apparatus and outdoor heat source unit

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