JP2009076220A - Ion generator - Google Patents

Ion generator Download PDF

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JP2009076220A
JP2009076220A JP2007241749A JP2007241749A JP2009076220A JP 2009076220 A JP2009076220 A JP 2009076220A JP 2007241749 A JP2007241749 A JP 2007241749A JP 2007241749 A JP2007241749 A JP 2007241749A JP 2009076220 A JP2009076220 A JP 2009076220A
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casing
electrode
discharge
ion generator
circuit board
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JP2007241749A
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JP4828497B2 (en
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Hiroyuki Matsutani
浩之 松谷
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RB Controls Co Ltd
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RB Controls Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an ion generator capable of reducing the production cost due to urethane resin P which is unnecessarily injected into a space between the circuit substrate 4 and the bottom of the casing 2 and the number of components by eliminating an optional shield to shut off noises from a discharging electrode in the conventional ion generator. <P>SOLUTION: An electrode storage section 21 recessed toward the inside of the casing 2 is provided to contain discharging electrodes 31 and 32. The electrode storage section 21 is isolated from the inside of the casing 2 to prevent invasion of urethane resin P from the inside of the casing into the electrode storage section 21. The discharging electrode 31 is formed box-shaped to enclose the discharging electrode 32 and made to work as a shield. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、空気中に放出して除菌や消臭を行うイオンを発生させるイオン発生装置に関する。   The present invention relates to an ion generator that generates ions that are released into the air to be sterilized and deodorized.

従来のこの種のイオン発生装置としては、樹脂で成形された有底のケーシングを用い、このケーシングの底部に窓穴を形成する。そしてその窓穴にセラミック製の板状の放電電極を取り付け、窓穴を閉鎖する。一方、ケーシングの内部には、ケーシングを形成する際に予めケーシングに端子を埋め込んでおき、ケーシングに放電電極が取り付けられると、放電電極とこれらの端子とを半田付けする。   As a conventional ion generator of this type, a bottomed casing made of resin is used, and a window hole is formed in the bottom of the casing. A ceramic plate-like discharge electrode is attached to the window hole, and the window hole is closed. On the other hand, when the casing is formed, terminals are embedded in the casing in advance, and when the discharge electrodes are attached to the casing, the discharge electrodes and these terminals are soldered.

続いて、ケーシング内に回路基板をセットするが、その際、端子の他端をケーシングに貫通させ、回路基板と端子の他端とを半田付けしている。そして最後にケーシング内にウレタン樹脂を注入して、このウレタン樹脂に回路基板上の電子部品を埋没させる、いわゆるポッティングを行っている（例えば、特許文献１参照）。   Subsequently, the circuit board is set in the casing. At this time, the other end of the terminal is passed through the casing, and the circuit board and the other end of the terminal are soldered. Finally, a urethane resin is injected into the casing, and so-called potting is performed in which the electronic components on the circuit board are buried in the urethane resin (see, for example, Patent Document 1).

また、イオンを発生させるためには放電電極で放電を行わせる必要があるが、その放電によりノイズが放出される。このノイズは可及的に放出させないことが望ましいので、放電電極の近傍に別途のシールドを設けたものが知られいている（例えば、特許文献２参照）。
特開２００６−２２２０４５号公報（図３） 特開２００５−３３２７７４号公報（図１の図番１６） Further, in order to generate ions, it is necessary to cause discharge at the discharge electrode, but noise is emitted by the discharge. Since it is desirable not to emit this noise as much as possible, it is known that a separate shield is provided in the vicinity of the discharge electrode (see, for example, Patent Document 2).
JP 2006-222045 A (FIG. 3) Japanese Patent Laying-Open No. 2005-332774 (Figure 16 in FIG. 1)

上記従来の特許文献１に記載されたようなものでは、回路基板とのケーシングの底面との間に空間が形成され、ポッティングで用いられるウレタン樹脂はその空間の全域に注入される。ところが、このような空間は必要のために積極的に設けられているものではないので、ウレタン樹脂が無駄に多く注入しなければならず、ウレタン樹脂のコストが高くなるという不具合が生じる。   In the conventional one described in Patent Document 1, a space is formed between the circuit board and the bottom surface of the casing, and urethane resin used for potting is injected over the entire space. However, since such a space is not actively provided for necessity, a large amount of urethane resin must be injected unnecessarily, resulting in a problem that the cost of the urethane resin increases.

また、特許文献２に記載されたようなものでは、シールドを設けることによるノイズ低減という効果は望ましいが、シールドを別部品として設けているので、部品点数が多くなるという不具合が生じる。   Moreover, in the thing as described in patent document 2, although the effect of the noise reduction by providing a shield is desirable, since the shield is provided as another component, the malfunction that a number of parts increases arises.

そこで本発明は、上記の問題点に鑑み、上述の不具合が生じないイオン発生装置を提供することを課題とする。   Then, this invention makes it a subject to provide the ion generator which does not produce the above-mentioned malfunction in view of said problem.

上記課題を解決するために本発明によるイオン発生装置は、有底のケーシング内に回路基板を設け、ケーシング内に樹脂を注入して回路基板上の部品を樹脂内に埋設すると共に、ケーシングの底部の外面に露出する放電電極を設け、回路基板から供給される高電圧を放電電極に印加してイオンを発生させるイオン発生装置において、ケーシングの底部に、ケーシングの内側に向かって凹む電極収納部を設け、この電極収納部に放電電極を収納させると共に、電極収納部にケーシング内の樹脂が侵入しないように、ケーシング内部と電極収納部とを隔絶したことを特徴とする。   In order to solve the above problems, an ion generator according to the present invention includes a circuit board in a bottomed casing, injecting resin into the casing to embed parts on the circuit board in the resin, and at the bottom of the casing In the ion generator that provides the discharge electrode exposed on the outer surface of the substrate and generates ions by applying a high voltage supplied from the circuit board to the discharge electrode, an electrode storage portion that is recessed toward the inside of the casing is provided at the bottom of the casing. The discharge electrode is housed in the electrode housing portion, and the inside of the casing and the electrode housing portion are isolated so that the resin in the casing does not enter the electrode housing portion.

電極収納部をケーシングの内側に向かって凹むように設けた。そして、ケーシング内部と電極収納部とを隔絶すると、従来のイオン発生装置でケーシングの底面と回路基板との間に形成されていた空間が、電極収納部により狭くなる。そのため、この空間に充填されていたポッティング用の樹脂の使用量が減少する。   The electrode housing portion was provided so as to be recessed toward the inside of the casing. And if the inside of a casing and an electrode storage part are isolated, the space formed between the bottom face of a casing and a circuit board with the conventional ion generator will become narrow by an electrode storage part. Therefore, the amount of potting resin used in this space is reduced.

なお、放電電極の一方を、他方の放電電極との放電位置を囲む箱状に形成し、この一方の放電電極をシールドとして機能させれば別部品としてシールドを設ける必要がない。   If one of the discharge electrodes is formed in a box shape surrounding the discharge position with the other discharge electrode, and this one discharge electrode functions as a shield, there is no need to provide a shield as a separate part.

以上の説明から明らかなように、本発明は、ケーシングの内部とは隔絶された電極収納部をケーシングの内側に向かって凹むように設けたので、ポッティング用の樹脂の使用量を削減することができ、これによりコストを下げることができる。   As is clear from the above description, the present invention is provided with the electrode housing part isolated from the inside of the casing so as to be recessed toward the inside of the casing, so that the amount of potting resin used can be reduced. This can reduce costs.

図１を参照して、１は本発明によるイオン発生装置であり、樹脂製のケーシング２を備えている。このケーシング２は有底形状であり、底部には電極収納部２１が設けられている。この電極収納部２１には１対の放電電極が収納されるが、そのうちの一方の放電電極３１は電極収納部２１を蓋するように取り付けられている。なお、１１はケーシング２に取り付けられるカバー部である。   Referring to FIG. 1, reference numeral 1 denotes an ion generator according to the present invention, which includes a resin casing 2. The casing 2 has a bottomed shape, and an electrode storage portion 21 is provided at the bottom. A pair of discharge electrodes is accommodated in the electrode accommodating portion 21, and one of the discharge electrodes 31 is attached so as to cover the electrode accommodating portion 21. In addition, 11 is a cover part attached to the casing 2.

図２を参照して、ケーシング２内には外部から供給される低電圧の電力を高電圧の電力に変換して放電電極に供給するための回路基板４が収納されている。この回路基板４は、ケーシング２内にセットされた後、図３に示すように、ウレタン樹脂Ｐによってポッティングされる。   Referring to FIG. 2, a circuit board 4 for converting low-voltage power supplied from the outside into high-voltage power and supplying it to the discharge electrode is housed in the casing 2. After the circuit board 4 is set in the casing 2, it is potted with urethane resin P as shown in FIG.

上記電極収納部２１内には他方の放電電極３２が収納されている。上記放電電極３１およびこの放電電極３２は共に電極収納部２１とケーシング２内とを隔絶する壁部分を隙間なく貫通してケーシング内に侵入し、回路基板４に接続されている。従って、回路基板４から両放電電極３１，３２に高電圧の電力が供給され、放電電極３２が放電電極３１に対向している部分で放電が発生する。なお、電極収納部２１とケーシング２内とは隔絶されており、両放電電極３１，３２が貫通しているとはいえ、ウレタン樹脂Ｐがケーシング２内から電極収納部２１内に流れ出ることはない。   The other discharge electrode 32 is accommodated in the electrode accommodating portion 21. Both the discharge electrode 31 and the discharge electrode 32 penetrate through the wall portion separating the electrode storage portion 21 and the inside of the casing 2 without any gap and enter the casing, and are connected to the circuit board 4. Accordingly, high voltage power is supplied from the circuit board 4 to both the discharge electrodes 31 and 32, and a discharge occurs at a portion where the discharge electrode 32 faces the discharge electrode 31. In addition, although the electrode storage part 21 and the inside of the casing 2 are isolated and both the discharge electrodes 31 and 32 have penetrated, the urethane resin P does not flow out from the casing 2 into the electrode storage part 21. .

ところで、図４に示すように、放電電極３１は単に板状ではなく、箱形状に形成して、放電部分を四方から囲むようにした。これにより放電電極３１がシールドとして機能し、放電部分から放射されるノイズを放電電極３１が遮蔽する。なお、３１ａ，３２ａは回路基板との接続部である。   By the way, as shown in FIG. 4, the discharge electrode 31 was formed not in a plate shape but in a box shape so as to surround the discharge portion from four sides. Thereby, the discharge electrode 31 functions as a shield, and the discharge electrode 31 shields noise radiated from the discharge portion. In addition, 31a and 32a are connection parts with a circuit board.

なお、本発明は上記した形態に限定されるものではなく、本発明の要旨を逸脱しない範囲内において種々の変更を加えてもかまわない。   In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

本発明の一実施の形態の構成を示す図The figure which shows the structure of one embodiment of this invention ケーシング内を示す斜視図Perspective view showing inside of casing ケーシング内を示す断面図Cross section showing inside of casing 放電電極の詳細を示す図Diagram showing details of discharge electrode

符号の説明Explanation of symbols

１ イオン発生装置
２ ケーシング
４ 回路基板
２１ 電極収納部
３１ 放電電極
３２ 放電電極
Ｐ ウレタン樹脂 DESCRIPTION OF SYMBOLS 1 Ion generator 2 Casing 4 Circuit board 21 Electrode accommodating part 31 Discharge electrode 32 Discharge electrode P Urethane resin

Claims (2)

有底のケーシング内に回路基板を設け、ケーシング内に樹脂を注入して回路基板上の部品を樹脂内に埋設すると共に、ケーシングの底部の外面に露出する放電電極を設け、回路基板から供給される高電圧を放電電極に印加してイオンを発生させるイオン発生装置において、ケーシングの底部に、ケーシングの内側に向かって凹む電極収納部を設け、この電極収納部に放電電極を収納させると共に、電極収納部にケーシング内の樹脂が侵入しないように、ケーシング内部と電極収納部とを隔絶したことを特徴とするイオン発生装置。   A circuit board is provided in a bottomed casing, resin is poured into the casing to embed the parts on the circuit board in the resin, and a discharge electrode exposed on the outer surface of the bottom of the casing is provided and supplied from the circuit board. In the ion generator for generating ions by applying a high voltage to the discharge electrode, an electrode storage portion that is recessed toward the inside of the casing is provided at the bottom of the casing, and the discharge electrode is stored in the electrode storage portion and the electrode An ion generator characterized in that the inside of the casing and the electrode storage portion are isolated so that the resin in the casing does not enter the storage portion. 放電電極の一方を、他方の放電電極との放電位置を囲む箱状に形成し、この一方の放電電極をシールドとして機能させたことを特徴とする請求項１に記載のイオン発生装置。   2. The ion generator according to claim 1, wherein one of the discharge electrodes is formed in a box shape surrounding a discharge position with the other discharge electrode, and the one discharge electrode functions as a shield.
JP2007241749A 2007-09-19 2007-09-19 Ion generator Expired - Fee Related JP4828497B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018055789A1 (en) * 2016-09-21 2018-03-29 シャープ株式会社 Discharging device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03109790U (en) * 1990-02-23 1991-11-11
JP2003178854A (en) * 2002-09-20 2003-06-27 Toyota Central Res & Dev Lab Inc Minus ion generator
JP2004311630A (en) * 2003-04-04 2004-11-04 Rb Controls Co Electronic apparatus and its manufacturing method
JP2006222045A (en) * 2005-02-14 2006-08-24 Rb Controls Co Ion generator and its manufacturing method
JP2008123917A (en) * 2006-11-14 2008-05-29 Sharp Corp Ion generating device, and manufacturing method of ion generating device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03109790U (en) * 1990-02-23 1991-11-11
JP2003178854A (en) * 2002-09-20 2003-06-27 Toyota Central Res & Dev Lab Inc Minus ion generator
JP2004311630A (en) * 2003-04-04 2004-11-04 Rb Controls Co Electronic apparatus and its manufacturing method
JP2006222045A (en) * 2005-02-14 2006-08-24 Rb Controls Co Ion generator and its manufacturing method
JP2008123917A (en) * 2006-11-14 2008-05-29 Sharp Corp Ion generating device, and manufacturing method of ion generating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018055789A1 (en) * 2016-09-21 2018-03-29 シャープ株式会社 Discharging device
CN109716604A (en) * 2016-09-21 2019-05-03 夏普株式会社 Electric discharge device
CN109716604B (en) * 2016-09-21 2020-11-10 夏普株式会社 Discharge device

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