JP6131439B2 - Charging equipment for electric vehicles - Google Patents

Charging equipment for electric vehicles Download PDF

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JP6131439B2
JP6131439B2 JP2012205037A JP2012205037A JP6131439B2 JP 6131439 B2 JP6131439 B2 JP 6131439B2 JP 2012205037 A JP2012205037 A JP 2012205037A JP 2012205037 A JP2012205037 A JP 2012205037A JP 6131439 B2 JP6131439 B2 JP 6131439B2
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dehumidifying material
charging
electric
air
electric vehicle
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JP2014058262A (en
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琢昌 渡邊
琢昌 渡邊
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Yokohama Heat Use Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses

Description

本発明は、電気自動車やプラグインハイブリッド自動車など（以下、電気自動車等という）の急速充電設備に関する。 The present invention relates to a rapid charging facility for an electric vehicle, a plug-in hybrid vehicle, and the like (hereinafter referred to as an electric vehicle).

近年、電気自動車等が実用化され、各地に急速充電設備が設置されている。この急速充電設備は３０分程度の時間で、電気自動車等の車載バッテリーを充電するもので、電気容量は３０ｋＶＡ〜５０ｋＶＡである。また、充電効率は概ね９０％であり、約１０％に相当する３ｋＶＡ〜５ｋＶＡが熱となって放散されている。 In recent years, electric vehicles and the like have been put into practical use, and quick charging facilities are installed in various places. This rapid charging facility charges an in-vehicle battery such as an electric vehicle in about 30 minutes, and has an electric capacity of 30 kVA to 50 kVA. The charging efficiency is approximately 90%, and 3 kVA to 5 kVA corresponding to about 10% is dissipated as heat.

一方、電気自動車等では外気温度の低下に伴い航続可能距離が短縮するという問題が発生しているが、これは、走行時に発生するウインドウの曇り防止のため、車内湿度を低く保つ目的で低温外気を導入した後に、低温外気の加温に車載バッテリーからの電力を使用することが主因である。 On the other hand, electric vehicles have a problem that the cruising range is shortened as the outside air temperature decreases. This is because low temperature outside air is used to keep the inside humidity low in order to prevent fogging of the windows generated during driving. The main reason is to use the electric power from the on-board battery to warm the low temperature outside air after the introduction of.

その対策として、車内で乗員が発する水蒸気を除湿材に吸湿させることで、車内空気を低湿度に保ち、ウインドウの防曇を行う除湿システムが提案されているが、除湿材の再生手段が大きな課題となっている。 As a countermeasure, a dehumidification system has been proposed that keeps the air inside the vehicle at low humidity and makes the window anti-fogging by absorbing moisture generated by the passengers in the vehicle to the dehumidifier. It has become.

電気自動車等の車室内で発生する水分は、乗員が発する水蒸気（不感常泄）であり、その量は大人一人当たり平均で毎時３０〜６０グラム程度である。例えば下記特許文献１では、車体内部に除湿材を保持する除湿ユニットを配置し、走行時に乗員から生じる水蒸気を除湿材で吸湿し、車室内空気を低湿度状態に保つ技術が記載されている。
Moisture generated in the passenger compartment of an electric vehicle or the like is water vapor (insensitive normal excretion) generated by an occupant, and the average amount is about 30 to 60 grams per hour per adult. For example, Patent Document 1 described below describes a technology in which a dehumidifying unit that holds a dehumidifying material is disposed inside a vehicle body, water vapor generated from an occupant during traveling is absorbed by the dehumidifying material, and the air in the passenger compartment is kept in a low humidity state.

特許第４８０１１９７号Patent No. 4801197

前記特許文献１記載の電気自動車用防曇・空調システムでは、乗員から発生する水蒸気（不感常泄）をファンなどの通風手段を用いて除湿ユニットへ導き、その内部に設置される除湿材にて除去する構成を採用している。 In the anti-fogging / air-conditioning system for an electric vehicle described in Patent Document 1, water vapor (insensitive normal excretion) generated from a passenger is guided to a dehumidifying unit using ventilation means such as a fan, and a dehumidifying material installed in the dehumidifying unit is used. The structure to remove is adopted.

一方、前記特許文献１には、電気自動車等の停車中に行われる車載バッテリーの充電時を利用して、外部電力等を用いて、搭載される除湿ユニット内の除湿材を再生する技術が記載されている。 On the other hand, Patent Document 1 describes a technique for regenerating a dehumidifying material in a mounted dehumidifying unit using external electric power or the like while charging an in-vehicle battery performed while an electric vehicle or the like is stopped. Has been.

本発明の主たる課題は、除湿材の再生に用いられる外部電力等のエネルギーを節約することである。 The main problem of the present invention is to save energy such as external power used for regeneration of the dehumidifying material.

本発明によれば、電気自動車等の車内に設置され、乗員から発する水分を吸湿した除湿材を、電気自動車等の充電時（特に急速充電時）に充電設備から排出される温風を用いて再生する手段が構築される。 According to the present invention, a dehumidifying material that is installed in an electric vehicle or the like and absorbs moisture emitted from a passenger is used by warm air discharged from a charging facility when the electric vehicle or the like is charged (particularly during rapid charging). A means for reproducing is constructed.

すなわち、電気自動車等の車載空調システムに設置される除湿材が前記車載空調システムから取り出し可能であり、取り出した除湿材を充電設備の冷却通風路に設けた除湿材固定手段に固定し、充電設備の通電稼働時（電気自動車等の充電時）に充電設備内の整流器や電圧調整器などの冷却を行った後の冷却空気を用いて、前記冷却通風路に設置された除湿材を通過乾燥させた後に、外部へ排気する構成としている。 That is, a dehumidifying material installed in an in-vehicle air conditioning system such as an electric vehicle can be taken out from the in-vehicle air conditioning system, and the taken out dehumidifying material is fixed to a dehumidifying material fixing means provided in a cooling ventilation passage of the charging facility, Using the cooling air after cooling the rectifiers and voltage regulators in the charging facility during energization operation (when charging an electric vehicle, etc.), the dehumidifying material installed in the cooling air passage is passed and dried. After that, the air is exhausted to the outside.

本発明により、除湿材再生を、電気自動車等の充電時に、充電装置から発生する損失熱を用いて行うことが可能となり、省エネルギーが達成される。 According to the present invention, it is possible to perform dehumidifying material regeneration using heat loss generated from a charging device when charging an electric vehicle or the like, and energy saving is achieved.

特に、本発明では再生速度が速いことが特徴である高分子収着剤（製造元：日本エクスラン工業株式会社）を塗布した除湿材の場合には、３０分程度の通風で再生が達成される。高分子収着剤を塗布したハニカム形状の除湿材のほか、ゼオライトやシリカゲルなどの吸湿性を有する鉱物を練り込んだセラミックペーパーを、断面がハニカム形状となる積層体とした後に焼結などにより固化されたものもある。これらのハニカム形状を有する除湿材の特徴は、通過空気の通風抵抗を低く抑え、均一な空気流が得られることである。 In particular, in the present invention, in the case of a dehumidifying material coated with a polymer sorbent (manufacturer: Nippon Exlan Industry Co., Ltd.), which is characterized by a high regeneration speed, regeneration is achieved with ventilation of about 30 minutes. In addition to honeycomb-shaped dehumidifying material coated with a polymer sorbent, ceramic paper kneaded with hygroscopic minerals such as zeolite and silica gel is solidified by sintering after forming a laminate with a honeycomb cross-section. Some have been done. The characteristics of the dehumidifying material having these honeycomb shapes are that the airflow resistance of the passing air is kept low and a uniform air flow is obtained.

また、本発明では、断面がハニカム形状の積層体の除湿材をカセット状として、電気自動車等の車載空調システムに取り出し自由に設置し、これを取り出した後に充電設備の冷却空気ダクトの除湿材固定手段に固定する方式を推奨している。冷却空気ダクトに除湿材カセットを設置し固定する除湿材固定手段の構成は、形状が異なる個々のメーカーの除湿材カセットに適合する形状としている。
Moreover, in the present invention, the dehumidifying material of the laminate having a honeycomb shape in the cross section is formed into a cassette shape, and is freely installed in an in-vehicle air conditioning system such as an electric vehicle, and after being removed, the dehumidifying material is fixed to the cooling air duct of the charging facility. A method of fixing to the means is recommended. The configuration of the dehumidifying material fixing means for installing and fixing the dehumidifying material cassette in the cooling air duct has a shape suitable for the dehumidifying material cassettes of different manufacturers having different shapes.

本発明による電気自動車等の充電設備では、除湿材カセット（４）の再生を電気自動車等の充電時に合わせて実施するとともに、再生に必要な温風製造に、充電設備の排熱を利用可能としたので、省エネルギーが確保された再生手段の提供が可能となった。 In the charging equipment for an electric vehicle or the like according to the present invention, the dehumidifying material cassette (4) is regenerated in accordance with the charging of the electric vehicle or the like, and the exhaust heat of the charging equipment can be used for producing hot air necessary for the regeneration. As a result, it has become possible to provide regeneration means that ensure energy conservation.

また、本発明による電気自動車等の充電設備では、電気自動車等の充電と共に除湿材カセットの効果的な再生が行われるので、充電後の走行時において、再生された除湿材カセットは、乗員の呼気中の水蒸気を含む車内空気から水蒸気を速やかに吸湿でき、ウインドウガラスに発生する結露を防止あるいは軽減するため電気自動車等の安全運転確保に貢献できる。 Further, in the charging equipment for an electric vehicle or the like according to the present invention, since the dehumidifying material cassette is effectively regenerated together with the charging of the electric vehicle or the like, the regenerated dehumidifying material cassette is used for the breathing of the occupant during traveling after charging. Water vapor can be quickly absorbed from the air inside the vehicle including the water vapor inside, and it is possible to contribute to ensuring safe driving of electric vehicles and the like because it prevents or reduces condensation that occurs on the window glass.

また、本発明による電気自動車等の充電設備の拡充が進めば、電気自動車等の車載空調システムに設置されるカセット型の除湿材形状を規格化することで、多種類の充電設備において除湿材カセットの再生が効果的に実施可能になると期待される。
Further, if the charging facilities such as electric vehicles are expanded according to the present invention, the cassette type dehumidifying material shape installed in the in-vehicle air conditioning system such as electric vehicles is standardized, so that the dehumidifying material cassette is used in various types of charging facilities. Is expected to be effectively implemented.

本発明に係る電気自動車等の充電設備（１０）の構成図である。充電設備（１０）の稼働時に排熱を発する電気設備類（１）、それら電気設備類（１）へ冷却空気を送る通風手段（２）、冷却空気を導くダクト類（３）、電気設備類（１）を冷却した後の冷却空気を導くダクト（３ａ）に設置されている除湿材カセット（４）の除湿材固定手段（５）、除湿材カセットへ流入する前の冷却空気を必要に応じて追加加熱する加熱手段（６）などから構成される。勿論、除湿材固定手段（５）の開閉扉（５ａ）は充電設備の前面あるいは側面にあって、除湿材カセット（４）の取り出しが容易な構成となっている。It is a lineblock diagram of charging equipment (10), such as an electric car concerning the present invention. Electrical equipment (1) that generates exhaust heat during operation of the charging equipment (10), ventilation means (2) that sends cooling air to the electrical equipment (1), ducts (3) that guide the cooling air, and electrical equipment The dehumidifying material fixing means (5) of the dehumidifying material cassette (4) installed in the duct (3a) for guiding the cooling air after cooling (1), the cooling air before flowing into the dehumidifying material cassette as required And heating means (6) for additional heating. Of course, the opening / closing door (5a) of the dehumidifying material fixing means (5) is located on the front surface or the side surface of the charging equipment, so that the dehumidifying material cassette (4) can be easily taken out.

以下、本発明の実施の形態について図面を参照しながら詳述する。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

図１に示すように、除湿材の再生は、電気自動車等が停車して車載バッテリーの充電を行う際に、商用電源を用いる充電設備（１０）にて実施される。充電設備（１０）では、外気を取り込み電気設備類（１）へ冷却空気を供給する通風手段（２）は、電気自動車等への給電開始と共に稼動する。取り込まれた外気は冷却空気を導くダクト類（３）にて電気設備類（１）へ導かれ、それらを冷却した後の冷却空気はダクト（３ａ）に導かれる。ダクト（３ａ）には、除湿材カセット（４）の固定手段（５）が設置されている。加熱手段（６）は除湿材カセットを通過した後の温度計測手段（７）の計測結果と通風手段（２）の稼動状況を検出した後に、必要に応じて電気的加熱を実施あるいは停止する。 As shown in FIG. 1, the regeneration of the dehumidifying material is performed by the charging facility (10) using a commercial power source when the electric vehicle or the like stops and charges the vehicle-mounted battery. In the charging facility (10), the ventilation means (2) that takes in outside air and supplies cooling air to the electrical facilities (1) operates together with the start of power supply to the electric vehicle or the like. The taken outside air is guided to the electrical equipment (1) by the ducts (3) for guiding the cooling air, and the cooling air after cooling them is guided to the duct (3a). The duct (3a) is provided with a fixing means (5) for the dehumidifying material cassette (4). The heating means (6) carries out or stops the electrical heating as necessary after detecting the measurement result of the temperature measuring means (7) after passing through the dehumidifying material cassette and the operating status of the ventilation means (2).

このように、本発明による電気自動車等の充電設備（１０）では、除湿材カセット（４）の再生を電気自動車等の充電時に合わせて実施可能とするとともに、除湿材再生に必要な温風製造に、充電設備の排熱を利用可能としているので、除湿材カセットの再生エネルギーは省エネルギー化される。 As described above, in the charging facility (10) for an electric vehicle or the like according to the present invention, the regeneration of the dehumidifying material cassette (4) can be performed at the time of charging the electric vehicle or the like, and the hot air required for the regeneration of the dehumidifying material is produced. In addition, since the exhaust heat of the charging facility can be used, the regeneration energy of the dehumidifying material cassette is saved.

また、再生された除湿材カセットは走行時に乗員の呼気中の水蒸気を含む車内空気から水蒸気を速やかに吸湿できるので、ウインドウガラスに発生する結露を防止あるいは軽減でき、安全運転確保に貢献する。 Further, since the regenerated dehumidifying material cassette can quickly absorb water vapor from the interior air containing the water vapor in the breath of the occupant during traveling, it is possible to prevent or reduce dew condensation generated on the window glass and contribute to ensuring safe driving.

また、除湿材により吸湿が行われた空気は温度上昇するので、電気自動車等の車室内暖房に寄与する効果を併せ持つ。
In addition, since the temperature of the air absorbed by the dehumidifying material rises, it also has the effect of contributing to the heating of the interior of an electric vehicle or the like.

１・・・充電設備の稼働時に排熱を発する電気設備類
２・・・通風手段（送風ファン）
３・・・ダクト類
３ａ・・・電気設備類を冷却した後の冷却空気を導くダクト、
４・・・除湿材カセット
５・・・除湿材カセットの固定手段
６・・・加熱手段（電気ヒータ）
７・・・温度計測手段
１０・・・充電設備
１２・・・制御手段 DESCRIPTION OF SYMBOLS 1 ... Electric equipment which emits exhaust heat at the time of operation of charging equipment 2 ... Ventilation means (blower fan)
3 ... Ducts 3a ... Ducts that guide the cooling air after cooling the electrical equipment,
Dehumidifying material cassette 5 Dehumidifying material cassette fixing means 6 Heating means (electric heater)
7 ... Temperature measuring means 10 ... Charging equipment 12 ... Control means

Claims (2)

バッテリーに蓄電された電力を電動機の動力源として走行する電気自動車等の車載バッテリーを充電するための各地に設置される急速充電設備であって、該充電設備内に設置される整流装置あるいは電力変換装置などの電気設備類を冷却する送風手段を用いて、これら電気設備類の少なくとも一つを冷却した後の空気の全量あるいは一部を通過させるダクトを設置し、該ダクトの一部に被乾燥物を固定できる手段と、当該固定手段に被乾燥物を出し入れする開閉手段を設置し、前記急速充電設備の前面あるいは側面部から前記開閉手段を介して前記被乾燥物の設置と回収を可能としたことを特徴とする電気自動車等の充電設備。 A quick charging facility installed in various places for charging an in-vehicle battery such as an electric vehicle that runs using electric power stored in the battery as a power source of an electric motor, and a rectifier or power converter installed in the charging facility Install a duct that allows all or part of the air after cooling at least one of these electrical equipments to pass through, using air blowing means that cools the electrical equipment such as equipment, and to dry some of the ducts A means capable of fixing the object and an opening / closing means for putting the object to be dried in and out of the fixing means are installed, and the object to be dried can be installed and collected from the front or side surface of the quick charging facility via the opening / closing means. Charging equipment for electric vehicles, etc. 請求項１に記載の各地に設置される電気自動車等の急速充電設備において、被乾燥物は電気自動車等の空調装置に搭載される除湿材カセットであることを特徴とする電気自動車等の充電設備。The quick charging facility for electric vehicles and the like installed in various places according to claim 1, wherein the object to be dried is a dehumidifying material cassette mounted on an air conditioner such as an electric vehicle. .
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