JP2003106626A - Electronic controller for air conditioner - Google Patents
Electronic controller for air conditionerInfo
- Publication number
- JP2003106626A JP2003106626A JP2001300597A JP2001300597A JP2003106626A JP 2003106626 A JP2003106626 A JP 2003106626A JP 2001300597 A JP2001300597 A JP 2001300597A JP 2001300597 A JP2001300597 A JP 2001300597A JP 2003106626 A JP2003106626 A JP 2003106626A
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- voltage
- heat exchanger
- chassis
- air conditioner
- 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
Landscapes
- Air Conditioning Control Device (AREA)
- Dc-Dc Converters (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気調和機の電子
制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic control device for an air conditioner.
【０００２】[0002]
【従来の技術】従来の空気清浄機能を有する空気調和機
について図３を用い説明する。2. Description of the Related Art A conventional air conditioner having an air cleaning function will be described with reference to FIG.
【０００３】図３は、交流電源１とは絶縁された制御用
直流電源２ａを有する制御部２と、交流電源１と絶縁さ
れ高周波スイッチングすることで直流低電圧を直流高電
圧に変換する高圧電源３と、高圧電源３の高圧出力端子
３ａと、高圧電源３のＧＮＤ端子３ｂと、高圧出力端子
３ａ及びＧＮＤ端子３ｂの近傍に設けられた熱交換器４
を具備し、高圧電源３により高圧出力端子３ａとＧＮＤ
端子３ｂ間に高電圧を発生させることで電界を発生し、
空気中の埃などを帯電させ、フィルタに吸着することで
電気式空気清浄機能を実現していた。FIG. 3 shows a control unit 2 having a control DC power supply 2a which is insulated from an AC power supply 1, and a high voltage power supply which is insulated from the AC power supply 1 and converts a DC low voltage into a DC high voltage by high frequency switching. 3, a high-voltage output terminal 3a of the high-voltage power supply 3, a GND terminal 3b of the high-voltage power supply 3, and a heat exchanger 4 provided near the high-voltage output terminal 3a and the GND terminal 3b.
Equipped with a high-voltage power source 3 and a high-voltage output terminal 3a and GND
An electric field is generated by generating a high voltage between the terminals 3b,
An electric air cleaning function was realized by charging dust in the air and adsorbing it on a filter.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
構成では、空気清浄機能を使用する場合、交流電源１と
高圧電源３が絶縁されており、高圧電源３の高周波スイ
ッチングにより低電圧を高電圧に変換するという動作か
ら、構造上高圧出力端子３ａと熱交換器４間、あるいは
ＧＮＤ端子３ｂと熱交換器４間に存在する浮遊容量５に
電荷が充電され、浮遊容量５、またはアース工事がされ
ていない場合にはシャーシ１２と、シャーシ１２と電気
的に接続された熱交換器４に、高電位が発生するおそれ
があるという課題を有していた。However, in the conventional configuration, when the air cleaning function is used, the AC power source 1 and the high voltage power source 3 are insulated, and the high voltage switching of the high voltage power source 3 changes the low voltage into the high voltage. Due to the operation of converting, the stray capacitance 5 existing between the high-voltage output terminal 3a and the heat exchanger 4 or between the GND terminal 3b and the heat exchanger 4 due to the structure is charged, and the stray capacitance 5 or grounding work is performed. If not, there is a problem that high potential may be generated in the chassis 12 and the heat exchanger 4 electrically connected to the chassis 12.
【０００５】本発明は、前記従来例の課題を解決するも
のであり、空気清浄機能を使用した場合に発生するおそ
れのある高電位を低下させるものである。The present invention solves the problems of the above-mentioned conventional example, and lowers the high potential which may occur when the air cleaning function is used.
【０００６】[0006]
【課題を解決するための手段】前記課題を解決するため
本発明は、高圧出力ＧＮＤ端子と交流電源間に、インピ
ーダンス回路を設けることで、浮遊容量に高電位が発生
せず、かつ、交流電源とアース間の容量分と並列に、抵
抗などで構成される放電回路を設けることで、万一アー
ス工事がされていない場合でも熱交換器あるいはシャー
シに高電位が発生しないものである。In order to solve the above problems, the present invention provides an impedance circuit between a high voltage output GND terminal and an AC power supply so that a high potential is not generated in a stray capacitance and an AC power supply is provided. By providing a discharge circuit composed of a resistor and the like in parallel with the capacitance between the ground and the ground, high potential will not be generated in the heat exchanger or chassis even if ground work is not performed.
【０００７】[0007]
【発明の実施の形態】高圧出力ＧＮＤ端子と交流電源間
に、インピーダンス回路を設けることにより、前記イン
ピーダンス回路と、前記交流電源を経由しアースに達す
る電気的ループを形成できる。このループにより、構造
上高圧出力端子と熱交換器間、あるいはＧＮＤ端子と熱
交換器間に存在する浮遊容量に充電されるおそれのある
電荷を放電することで、前記浮遊容量に高電位が発生し
ないものである。BEST MODE FOR CARRYING OUT THE INVENTION By providing an impedance circuit between a high voltage output GND terminal and an AC power source, it is possible to form the impedance circuit and an electric loop reaching the ground via the AC power source. By this loop, a high potential is generated in the stray capacitance by discharging the electric charge that may be charged in the stray capacitance existing between the high voltage output terminal and the heat exchanger or between the GND terminal and the heat exchanger due to the structure. It does not.
【０００８】さらに、交流電源とアース間の容量分と並
列に、抵抗などで構成される放電回路を設けることで、
万一アース工事がされていない場合でも、熱交換器とシ
ャーシと放電回路を経由しアースに達する電気的ループ
を設けることにより、シャーシと熱交換器に高電位が発
生しないものである。
（実施の形態１）以下添付の図面を参照して、本発明の
実施例を説明する。Furthermore, by providing a discharge circuit composed of a resistor or the like in parallel with the capacitance between the AC power source and the ground,
Even if the grounding work is not done, a high potential is not generated in the chassis and the heat exchanger by providing an electric loop that reaches the ground through the heat exchanger, the chassis and the discharge circuit. (Embodiment 1) An embodiment of the present invention will be described below with reference to the accompanying drawings.
【０００９】図１を用いて本発明の実施の形態１につい
て説明する。A first embodiment of the present invention will be described with reference to FIG.
【００１０】図１は、交流電源１とは絶縁された直流制
御電源２ａを有する制御部２と、同じく交流電源１と絶
縁され高周波スイッチングによって低電圧を高電圧に変
換する高圧電源３と、高圧電源３の高圧出力端子３ａ
と、高圧出力端子３ａの近傍に配置された高圧電源３の
ＧＮＤ端子３ｂと、空気調和機の小型化による構造上の
制限等によりＧＮＤ端子３ｂの近傍に設けられアースと
電気的に接続された熱交換器４と、熱交換器４と電気的
に接続されたシャーシ１２と、ＧＮＤ端子３ｂと交流電
源１間に設けられバリスタと抵抗によって構成される一
定のインピーダンスを持つ回路であるインピーダンス回
路６と、交流電源１とシャーシ１２間に設けられバリス
タ１０により構成されるサージ吸収回路７と、室外制御
部８とを具備し、その構造上ＧＮＤ端子３ｂと熱交換器
４間あるいは高圧出力端子３ａと熱交換器４間に存在す
る浮遊容量５が存在し、バリスタ１０には容量分１１が
並列に存在する、空気調和機の構成図である。FIG. 1 shows a control unit 2 having a DC control power supply 2a which is insulated from an AC power supply 1, a high voltage power supply 3 which is also insulated from the AC power supply 1 and converts a low voltage into a high voltage by high frequency switching, and a high voltage. High-voltage output terminal 3a of power supply 3
And the GND terminal 3b of the high-voltage power supply 3 arranged near the high-voltage output terminal 3a and the ground terminal 3b provided near the GND terminal 3b due to structural restrictions due to downsizing of the air conditioner and electrically connected to the ground. The heat exchanger 4, a chassis 12 electrically connected to the heat exchanger 4, an impedance circuit 6 which is a circuit having a constant impedance, which is provided between the GND terminal 3b and the AC power supply 1 and is constituted by a varistor and a resistor. A surge absorbing circuit 7 provided between the AC power source 1 and the chassis 12 and constituted by a varistor 10, and an outdoor control unit 8. Due to their structure, the GND terminal 3b and the heat exchanger 4 or the high voltage output terminal 3a are provided. 2 is a configuration diagram of an air conditioner in which a stray capacitance 5 existing between the heat exchanger 4 and the heat exchanger 4 exists, and a varistor 10 has a capacity component 11 in parallel.
【００１１】前記空気調和機において、高圧出力端子３
ａとＧＮＤ端子３ｂ間に高電圧を発生することにより電
界を発生させ空気中に存在する埃などを帯電させフィル
タに吸着させることで空気清浄機能が実現される。この
時従来の構成であれば高圧電源３が高周波スイッチング
により低電圧を高電圧に変換するという動作により浮遊
容量５への充電が発生し、高圧出力端子３ａあるいはＧ
ＮＤ端子３ｂにアースから見て高電位が発生するおそれ
があるが、インピーダンス回路６を設けることにより、
インピーダンス回路６を経由し、交流電源１からアース
へと達する電気的ループを形成するため、高圧出力端子
３ａあるいは高圧出力ＧＮＤ端子３ｂに高電位は発生し
ない。
（実施の形態２）図２を用いて本発明の実施の形態２に
ついて説明する。In the air conditioner, the high voltage output terminal 3
An air cleaning function is realized by generating a high voltage between a and the GND terminal 3b to generate an electric field to charge dust and the like existing in the air and adsorb it to the filter. At this time, if the conventional configuration is used, the high voltage power supply 3 converts the low voltage into the high voltage by high frequency switching, so that the stray capacitance 5 is charged, and the high voltage output terminal 3a or G
Although a high potential may be generated at the ND terminal 3b when viewed from the ground, by providing the impedance circuit 6,
Since an electric loop from the AC power supply 1 to the ground is formed via the impedance circuit 6, no high potential is generated at the high voltage output terminal 3a or the high voltage output GND terminal 3b. (Embodiment 2) Embodiment 2 of the present invention will be described with reference to FIG.
【００１２】サージ吸収回路７を構成するバリスタ１０
と並列に接続した放電抵抗９と、シャーシがアースと接
続されておらず、アースと熱交換器４間には浮遊容量５
に比べ十分に小さい浮遊容量１３が存在する構成以外は
実施の形態１と同様の構成、動作のため説明を省略す
る。Varistor 10 constituting the surge absorbing circuit 7
The discharge resistor 9 connected in parallel with the chassis and the chassis are not connected to the earth, and the stray capacitance 5 is present between the earth and the heat exchanger 4.
The configuration and the operation are the same as those in the first embodiment except that the stray capacitance 13 is sufficiently smaller than the configuration described in the first embodiment.
【００１３】前記空気清浄機能を使用した場合、市場で
の種々の理由によりアース工事がされずシャーシ１２が
アースと接続されていない場合、従来の構成であればシ
ャーシ１２及び熱交換器４とアース間に浮遊容量５と浮
遊容量１３の直列回路が存在しその容量の比率から、浮
遊容量１３つまりシャーシ１２及び熱交換器４に高電位
が発生するおそれがあるが、放電抵抗９を設けることで
シャーシ１２と熱交換器４と放電抵抗９を経由しアース
に達する電気的ループを形成できるため、シャーシ１２
と熱交換器４に高電位が発生しない。When the air cleaning function is used, grounding work is not carried out due to various reasons in the market and the chassis 12 is not connected to the ground. With the conventional structure, the chassis 12 and the heat exchanger 4 are grounded. A series circuit of the stray capacitance 5 and the stray capacitance 13 exists between them, and a high potential may be generated in the stray capacitance 13, that is, the chassis 12 and the heat exchanger 4 due to the ratio of the capacitances. Since an electric loop reaching the ground via the chassis 12, the heat exchanger 4 and the discharge resistor 9 can be formed, the chassis 12
Therefore, no high potential is generated in the heat exchanger 4.
【００１４】[0014]
【発明の効果】前記実施の形態の説明からも明らかなよ
うに、本発明は、高圧出力ＧＮＤ端子と交流電源間に、
インピーダンス回路を設けることで、浮遊容量に高電位
が発生せず、かつ、交流電源とアース間の容量分と並列
に、抵抗などで構成される放電回路を設けることで、万
一アース工事がされていない場合でも熱交換器あるいは
シャーシに高電位が発生しないものである。As is apparent from the description of the above-mentioned embodiment, the present invention provides a high-voltage output GND terminal and an AC power source,
By providing an impedance circuit, a high potential will not be generated in the stray capacitance, and by installing a discharge circuit composed of a resistor in parallel with the capacitance between the AC power supply and ground, grounding work will be performed. Even if not, high potential is not generated in the heat exchanger or chassis.
【図１】本発明の実施の形態１における空気調和機の構
成図FIG. 1 is a configuration diagram of an air conditioner according to a first embodiment of the present invention.
【図２】本発明の実施の形態２における空気調和機の構
成図FIG. 2 is a configuration diagram of an air conditioner according to Embodiment 2 of the present invention.
【図３】従来の空気調和機の構成図FIG. 3 is a configuration diagram of a conventional air conditioner
１ 交流電源 ２ 制御部 ２ａ 制御用直流電源 ３ 高圧電源 ３ａ 高圧出力端子 ３ｂ ＧＮＤ端子 ４ 熱交換器 ５ 浮遊容量 ６ インピーダンス回路 ７ サージ吸収回路 ８ 室外制御部 ９ 放電抵抗 １０ バリスタ １１ バリスタの容量分 １２ シャーシ １３ アースとシャーシ間の浮遊容量 1 AC power supply 2 control unit 2a DC power supply for control 3 high voltage power supply 3a High voltage output terminal 3b GND terminal 4 heat exchanger 5 stray capacitance 6 impedance circuit 7 Surge absorption circuit 8 Outdoor control unit 9 discharge resistance 10 Barista 11 Varistor capacity 12 chassis 13 Stray capacitance between ground and chassis
───────────────────────────────────────────────────── フロントページの続き (72)発明者 野間 博文 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 谷 祐二 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 荒川 政志 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 Ｆターム(参考） 3L051 BC01 3L060 AA02 EE45 3L061 BA02 5H730 AA17 AS04 BB21 CC01 FG01 XX03 XX12 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hirofumi Noma 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Yuji Tani 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. (72) Inventor Masashi Arakawa 1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric Sangyo Co., Ltd. F-term (reference) 3L051 BC01 3L060 AA02 EE45 3L061 BA02 5H730 AA17 AS04 BB21 CC01 FG01 XX03 XX12
Claims (2)
有する制御部と、前記交流電源と絶縁され高周波スイッ
チングすることで直流低電圧を直流高電圧に変換する高
圧電源と、前記高圧電源の高圧出力端子と、前記高圧電
源のＧＮＤ端子と、前記高圧電源の高圧及びＧＮＤ端子
の近傍に設けられた熱交換器と、前記ＧＮＤ端子と前記
交流電源間に一定のインピーダンスを持つ回路を具備
し、前記高圧電源により高電圧を発生させることで電気
式空気清浄機能を実現することを特徴とする空気調和機
の電子制御装置。1. A control unit having a control DC power supply insulated from an AC power supply, a high-voltage power supply insulated from the AC power supply to convert a DC low voltage into a DC high voltage by high-frequency switching, and a high-voltage power supply of the high-voltage power supply. A high-voltage output terminal; a GND terminal of the high-voltage power supply; a heat exchanger provided near the high-voltage and GND terminals of the high-voltage power supply; and a circuit having a constant impedance between the GND terminal and the AC power supply. An electronic control device for an air conditioner, which realizes an electric air cleaning function by generating a high voltage by the high-voltage power supply.
を具備し、交流電源とシャーシ間に放電回路を設けた請
求項１に記載の空気調和機の電子制御装置。2. The electronic control device for an air conditioner according to claim 1, further comprising a chassis electrically connected to the heat exchanger, wherein a discharge circuit is provided between the AC power supply and the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001300597A JP2003106626A (en) | 2001-09-28 | 2001-09-28 | Electronic controller for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001300597A JP2003106626A (en) | 2001-09-28 | 2001-09-28 | Electronic controller for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003106626A true JP2003106626A (en) | 2003-04-09 |
Family
ID=19121142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001300597A Pending JP2003106626A (en) | 2001-09-28 | 2001-09-28 | Electronic controller for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003106626A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127857A1 (en) * | 2011-03-22 | 2012-09-27 | パナソニック株式会社 | Indoor unit of air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241949A (en) * | 1984-05-15 | 1985-11-30 | Daikin Ind Ltd | Air cleaner |
| JP2000146221A (en) * | 1998-11-12 | 2000-05-26 | Funai Electric Co Ltd | Air conditioner |
-
2001
- 2001-09-28 JP JP2001300597A patent/JP2003106626A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241949A (en) * | 1984-05-15 | 1985-11-30 | Daikin Ind Ltd | Air cleaner |
| JP2000146221A (en) * | 1998-11-12 | 2000-05-26 | Funai Electric Co Ltd | Air conditioner |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012127857A1 (en) * | 2011-03-22 | 2012-09-27 | パナソニック株式会社 | Indoor unit of air conditioner |
| JP2012197969A (en) * | 2011-03-22 | 2012-10-18 | Panasonic Corp | Air conditioner indoor unit |
| CN103459936A (en) * | 2011-03-22 | 2013-12-18 | 松下电器产业株式会社 | Indoor unit of air conditioner |
| CN103459936B (en) * | 2011-03-22 | 2016-03-30 | 松下电器产业株式会社 | The indoor set of air conditioner |
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