JPH0742886Y2 - Vehicle window heating device - Google Patents
Vehicle window heating deviceInfo
- Publication number
- JPH0742886Y2 JPH0742886Y2 JP1988039667U JP3966788U JPH0742886Y2 JP H0742886 Y2 JPH0742886 Y2 JP H0742886Y2 JP 1988039667 U JP1988039667 U JP 1988039667U JP 3966788 U JP3966788 U JP 3966788U JP H0742886 Y2 JPH0742886 Y2 JP H0742886Y2
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- vehicle
- battery
- control
- normal
- 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
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Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は車両用ウィンドウを加熱して霜，雪等を除去す
る加熱装置に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a heating device for heating a vehicle window to remove frost, snow, and the like.
〈従来の技術〉 この種の加熱装置の従来例として第２図に示すようなも
のがある（特公昭61-33735号公報参照）。<Prior Art> As a conventional example of this type of heating device, there is one as shown in FIG. 2 (see Japanese Patent Publication No. 61-33735).
すなわち、フロントガラス等のウィンドウガラス（図示
せず）内には、金属粒子が蒸着されて、発熱用電気抵抗
体１が設けられ、この電気抵抗体１に通電してウィンド
ウガラスを加熱することによりウィンドウガラスに付着
する霜，雪等の氷を溶融するようにしている。That is, metal particles are vapor-deposited in a window glass (not shown) such as a windshield to provide an electric resistor 1 for heating, and the electric resistor 1 is energized to heat the window glass. Ice such as frost and snow attached to the window glass is melted.
具体的には、融氷作動スイッチ２がオフのとき或いはオ
ンから５分経過後にコントロールリレー３の接点3aは制
御ユニット４からの励磁信号により切換えられオルタネ
ータ５の出力部６と定格12Vのバッテリ７及び他の電気
負荷とを接続させる。そして、オルタネータ５の出力部
６の出力電圧（発生電圧）に基づいて電圧調整器８はオ
ルタネータ５のロータコイル5aに印加される励磁電流を
制御し、もってバッテリ電圧が例えば12.5V以下のとき
にオルタネータ５のステータコイル5bの出力電圧を例え
ば13.5Vになるように制御する通常電圧制御がなされ
る。前記電圧調整器８には制御ユニット４及びイグニッ
ションスイッチ９を介してバッテリ７から励磁電流が供
給されるようになっている。Specifically, the contact 3a of the control relay 3 is switched by the excitation signal from the control unit 4 when the ice-melting operation switch 2 is off or after 5 minutes have passed since it was turned on, and the output part 6 of the alternator 5 and the battery 7 rated 12V. And other electrical loads. Then, the voltage regulator 8 controls the exciting current applied to the rotor coil 5a of the alternator 5 based on the output voltage (generated voltage) of the output unit 6 of the alternator 5, and when the battery voltage is, for example, 12.5 V or less. Normal voltage control is performed to control the output voltage of the stator coil 5b of the alternator 5 to be, for example, 13.5V. An exciting current is supplied from the battery 7 to the voltage regulator 8 via the control unit 4 and the ignition switch 9.
また、前記融氷作動スイッチ２がオンされてから５分以
内は前記作動スイッチ２がオフされない限り前記通常電
圧制御が停止され融氷作動が行われる。Further, within 5 minutes after the ice-melting operation switch 2 is turned on, the normal voltage control is stopped and the ice-melting operation is performed unless the operation switch 2 is turned off.
すなわち、制御ユニット４はコントロールリレー３の接
点3aをオルタネータ５の出力部６と前記電気抵抗体１と
を接続させるべく切換動作させる。そして、シフト位置
センサ10が変速機のシフト位置がニュートラル位置（パ
ーキング位置を含む）にあることを検出したときすなわ
ち車両の停止時に、制御ユニット４は電圧検出抵抗11の
検出電圧に基づいてオルタネータ５の出力電圧が60Vに
昇圧するように電子燃料制御装置12を制御する。電子燃
料制御装置12は機関への燃料供給量を制御し、エンジン
回転数を高めることによりオルタネータ５の出力電圧を
高め前記電気抵抗体１の消費電力に対応できるようにな
っている。That is, the control unit 4 switches the contact 3a of the control relay 3 to connect the output portion 6 of the alternator 5 and the electric resistor 1. Then, when the shift position sensor 10 detects that the shift position of the transmission is in the neutral position (including the parking position), that is, when the vehicle is stopped, the control unit 4 determines the alternator 5 based on the detection voltage of the voltage detection resistor 11. The electronic fuel control device 12 is controlled so that the output voltage of the device is boosted to 60V. The electronic fuel control device 12 controls the amount of fuel supplied to the engine and increases the engine speed to increase the output voltage of the alternator 5 so that the electric resistance 1 can be consumed.
このようにして、電気抵抗体１に通電することにより電
気抵抗体１を発熱させ、ウィンドウガラスに付着する
霜，雪等の氷を溶融させるようにしている。In this way, the electric resistance 1 is heated by energizing the electric resistance 1 to melt ice such as frost and snow adhering to the window glass.
尚、13は制御ユニット４に電源電圧を供給するイグニッ
ションリレー、14は融氷作動表示灯、15はオルタネータ
５の発電の有無を表示するチャージランプである。Reference numeral 13 is an ignition relay that supplies a power supply voltage to the control unit 4, 14 is an ice melting operation indicator light, and 15 is a charge lamp that indicates whether or not the alternator 5 is generating power.
〈考案が解決しようとする課題〉 しかしながら、このような従来の加熱装置においては、
融氷作動時には前記通常電圧制御時よりもオルタネータ
５の出力電圧を数倍程度高めるようにしているので、融
氷作動時には電気抵抗体１より定格電圧が低いバッテリ
７及び他の電気負荷にオルタネータ５の出力電圧を印加
できないという不具合がある。また、車両走行時にはエ
ンジン回転数が常時変動しているので、通常電圧制御を
停止させるとオルタネータの出力電圧が変化するため、
融氷動作が安定しないという不具合がある。このため、
従来においては、車両停止時の暖機アイドル運転時に融
氷作動を行うようにしているが、このようにすると充分
に融氷ができないという不具合がある。<Problems to be Solved by the Invention> However, in such a conventional heating device,
Since the output voltage of the alternator 5 is increased several times during the ice-melting operation as compared with the normal voltage control, the alternator 5 is connected to the battery 7 and other electric loads whose rated voltage is lower than that of the electric resistor 1 during the ice-melting operation. However, there is a problem that the output voltage cannot be applied. Also, since the engine speed constantly changes when the vehicle is running, the output voltage of the alternator changes when the normal voltage control is stopped.
There is a problem that the ice melting operation is not stable. For this reason,
Conventionally, the ice-melting operation is performed during the warm-up idle operation when the vehicle is stopped. However, this causes a problem that the ice-melting cannot be sufficiently performed.
本考案は、このような実状に鑑みてなされたもので、融
氷等を充分に行うことができる車両ウィンドウの加熱装
置を提供することを目的とする。The present invention has been made in view of such circumstances, and an object of the present invention is to provide a heating device for a vehicle window capable of sufficiently melting ice and the like.
〈課題を解決するための手段〉 このため、車両用ウインドウに取付けられ該ウインドウ
を加熱する発熱素子と、該発熱素子を加熱動作させる作
動スイッチと、車両の停止の有無を検出する車両停止状
態検出手段と、オルタネータの出力電圧を第１電圧にな
るように通常電圧制御を行う通常電圧制御手段と、該通
常電圧制御の第１電圧をバッテリ等の電気負荷側の出力
端子に印加する第１電圧印加手段と、車両停止中でかつ
作動スイッチがオン状態で、前記通常電圧制御を停止さ
せて第１電圧よりも昇圧された第２電圧を前記バッテリ
等の電気負荷側の出力端子をバイパスして前記発熱素子
側の出力端子に印加する第２電圧印加手段と、前記車両
走行中でかつ作動スイッチがオン状態で、前記通常電圧
制御手段により通常電圧制御された第１電圧をバッテリ
等の電気負荷側の出力端子に印加し、該印加された第１
電圧を前記発熱素子側の出力端子に印加させるように切
り換え制御する通常電圧切換制御手段と、を備えるよう
にした。<Means for Solving the Problems> For this reason, a heating element attached to a vehicle window for heating the window, an operation switch for heating the heating element, and a vehicle stop state detection for detecting whether or not the vehicle is stopped Means, normal voltage control means for performing normal voltage control so that the output voltage of the alternator becomes the first voltage, and first voltage for applying the first voltage of the normal voltage control to an output terminal on the electric load side such as a battery. The application means and the vehicle are stopped and the operation switch is in the ON state, the normal voltage control is stopped, and the second voltage boosted higher than the first voltage is bypassed to the output terminal on the electric load side such as the battery. Second voltage applying means for applying to the output terminal on the side of the heat generating element, and first voltage controlled by the normal voltage control means while the vehicle is traveling and the operation switch is in the ON state. Pressure is applied to an output terminal on the side of an electric load such as a battery, and the applied first
And a normal voltage switching control means for switching control so that a voltage is applied to the output terminal on the heating element side.
〈作用〉 このようにして、暖機中等の車両停止時には昇圧された
第２電圧を発熱素子に印加することにより大発熱量でも
って霜，雪等の氷を短時間で溶融させる一方、車両走行
中には通常電圧制御に得られた第１電圧を発熱素子に印
加し、前記氷を溶融させる他水滴等の除去もできるよう
にした。<Operation> In this way, when the vehicle is stopped, such as during warm-up, by applying the boosted second voltage to the heating element, the large amount of heat is used to melt ice such as frost and snow in a short time, while the vehicle travels. In some cases, the first voltage obtained by the normal voltage control is applied to the heating element to melt the ice and remove water drops and the like.
〈実施例〉 以下に、本考案の一実施例を第１図に基づいて説明す
る。尚、従来例と同一要素には第２図と同一符号を付し
て説明を省略する。<Embodiment> An embodiment of the present invention will be described below with reference to FIG. The same elements as those in the conventional example are designated by the same reference numerals as those in FIG. 2 and their description is omitted.
図において、コントロールリレー３と発熱素子としての
電気抵抗体１との間には電圧切換リレー21が介装されて
いる。電圧切換リレー21の−入力端子は前記コントロー
ルリレー３の電気抵抗体１への出力側端子に接続され、
また電圧切換リレー21の他入力端子はバッテリ７の＋側
端子に接続されている。この電圧切換リレー21の接点21
aは、制御ユニット22からの信号により、車両走行中で
かつ融氷作動スイッチ２がオンのときに前記他入力端子
と接続され、それ以外のときには前記−入力端子と接続
されるように切替制御される。ここで、コントロールリ
レー３、電圧切換リレー21及び制御ユニット22が通常電
圧切換制御手段を構成する。In the figure, a voltage switching relay 21 is interposed between the control relay 3 and the electric resistor 1 as a heating element. The-input terminal of the voltage switching relay 21 is connected to the output side terminal of the control relay 3 to the electric resistor 1.
The other input terminal of the voltage switching relay 21 is connected to the + side terminal of the battery 7. Contact 21 of this voltage switching relay 21
a is a switching control that is connected to the other input terminal while the vehicle is traveling and the ice-melting operation switch 2 is on, and is connected to the-input terminal at other times, in response to a signal from the control unit 22. To be done. Here, the control relay 3, the voltage switching relay 21, and the control unit 22 constitute a normal voltage switching control means.
次に作用を説明する。Next, the operation will be described.
車両停止状態検出手段としてのシフト位置センサ10が変
速機のシフト位置がニュートラル位置にあることを検出
したときには車両停止中と判断する。When the shift position sensor 10 as the vehicle stop state detecting means detects that the shift position of the transmission is in the neutral position, it is determined that the vehicle is stopped.
そして、作動スイッチとしての融氷作動スイッチ２がオ
フされているときには、制御ユニット22はオルタネータ
５の出力部と定格12Vのバッテリ７を含む電気負荷とを
接続するようにコントロールリレー３の接点3aを切換制
御する。そして、オルタネータ５の出力部６の出力電圧
に基づいて通常電圧制御手段としての電圧調整器８は、
ロータコイル5aに印加される励磁電流を制御し、もって
バッテリ電圧が例えば12.5V以下のときにオルタネータ
５のステータコイル5bの出力電圧を例えば13.5V（第１
電圧）になるように通常電圧制御を行い、この電圧をバ
ッテリ７等にコントロールリレー３を介して印加する。When the ice-melting operation switch 2 as an operation switch is turned off, the control unit 22 connects the contact 3a of the control relay 3 so as to connect the output part of the alternator 5 and the electric load including the battery 7 rated at 12V. Switch control. Then, based on the output voltage of the output section 6 of the alternator 5, the voltage regulator 8 as the normal voltage control means
The exciting current applied to the rotor coil 5a is controlled so that the output voltage of the stator coil 5b of the alternator 5 is, for example, 13.5V (the first when the battery voltage is 12.5V or less.
Voltage is applied to the battery 7 and the like via the control relay 3.
一方、車両停止中の暖機運転時等に融氷作動スイッチ２
がオンされると、オン時から５分以内は、前記通常電圧
制御が停止されて以下の融氷作動が行われる。On the other hand, the ice melting operation switch 2 is used when warming up while the vehicle is stopped.
When is turned on, the normal voltage control is stopped and the following ice-melting operation is performed within 5 minutes after the turning on.
すなわち、コントロールリレー３の接点3aを電圧切換リ
レー21側端子に切換えると共に、電子燃料制御装置12を
制御しエンジン回転数を通常回転数より高める。これに
より、オルタネータ５のロータコイル5aの回転数が上昇
しステータコイル5bの出力電圧が例えば60V（第２電
圧）まで昇圧され、この電圧がコントロールリレー３及
び電圧切換リレー21を介して電気抵抗体１に印加され
る。そして、電気抵抗体１は発熱してウィンドウガラス
を加熱してウィンドウガラスに付着する霜，雪等の氷を
短時間で溶融させ、もって視界を良好にすることができ
る。また、昇圧された電圧をバッテリ７等の電気負荷を
バイパスして電気抵抗体１に直接印加するので、バッテ
リ７や他の電気負荷にダメージを与えることはない。That is, the contact 3a of the control relay 3 is switched to the voltage switching relay 21 side terminal, and the electronic fuel control device 12 is controlled to raise the engine speed higher than the normal speed. As a result, the number of revolutions of the rotor coil 5a of the alternator 5 increases and the output voltage of the stator coil 5b is boosted to, for example, 60V (second voltage), and this voltage is passed through the control relay 3 and the voltage switching relay 21 to an electric resistance body. 1 is applied. Then, the electric resistor 1 generates heat and heats the window glass to melt ice such as frost and snow adhering to the window glass in a short time, thereby improving the visibility. Moreover, since the boosted voltage bypasses the electric load such as the battery 7 and is directly applied to the electric resistor 1, the battery 7 and other electric loads are not damaged.
したがって、ここでは、コントロールリレー３と電圧切
換リレー21とが第２電圧印加手段を構成する。Therefore, here, the control relay 3 and the voltage switching relay 21 constitute the second voltage applying means.
一方、車両走行中には前記通常電圧制御によりオルタネ
ータ５の出力電圧は略一定（例えば13.5Vの第１電圧）
になるように常に制御され、この電圧が前記コントロー
ルリレー３を介してバッテリ７等の電気負荷に印加され
る。このとき、電圧切換リレー21の接点21aは前記コン
トロールリレー３の端子に接続されている。ここで、コ
ントロールリレー３と電圧切換リレー21とが第１電圧印
加手段を構成する。On the other hand, while the vehicle is traveling, the output voltage of the alternator 5 is substantially constant (for example, the first voltage of 13.5V) by the normal voltage control.
Is constantly controlled so that this voltage is applied to the electric load such as the battery 7 via the control relay 3. At this time, the contact 21a of the voltage switching relay 21 is connected to the terminal of the control relay 3. Here, the control relay 3 and the voltage switching relay 21 constitute a first voltage applying means.
かかる状態において、融氷作動スイッチ２がオンされる
と、制御ユニット22からの信号により電圧切換リレー21
の接点21aがバッテリ７側に切替えられ、バッテリ７に
印加されるオルタネータ５の出力電圧（例えば13.5V）
が電気抵抗体１に印加されて電気抵抗体１が発熱し、ウ
ィンドウガラスを加熱する。これにより、ウィンドウガ
ラスに付着する氷或いは水滴（くもり）を除去できる。
このときの電圧（例えば13.5V）は車両停止時に印加さ
れる電圧（例えば60V）に較べて低くそのときの発熱量
も小さいため、霜，雪等の氷を短時間で溶融させるのに
は熱量が不足するが、走行中に車室内外の温度差等によ
りウィンドウガラスに付着する水滴の除去を行うのに最
適である。このように、暖機運転時等の車両停止中でか
つ作動スイッチ２がオン状態で、通常電圧制御を停止さ
せて得た高い電圧をバッテリ７や他の電気負荷等に奪わ
れず高く保持したまま直接電気抵抗体１へ印加すること
ができるので、霜、雪等の氷の溶融を短時間で行える一
方、車両走行中で且つ作動スイッチ２がオン状態で、バ
ッテリ７を経由した通常電圧制御の電圧を前記電気抵抗
体１に印加するようにしたので、発電電圧をバッテリ７
と電気抵抗体１との両方へ供給してバッテリ上りを防止
しつつ溶融を並行して継続でき、以て、霜、雪等の氷の
溶融を充分に行うことができる。In this state, when the ice-melting operation switch 2 is turned on, the voltage switching relay 21 is activated by a signal from the control unit 22.
21a is switched to the battery 7 side, and the output voltage of the alternator 5 applied to the battery 7 (for example, 13.5V)
Is applied to the electric resistor 1 to generate heat, which heats the window glass. This makes it possible to remove ice or water droplets (clouds) attached to the window glass.
The voltage (eg 13.5V) at this time is lower than the voltage (eg 60V) applied when the vehicle is stopped, and the amount of heat generated at that time is also small, so it is necessary to heat the ice such as frost and snow in a short time. However, it is most suitable for removing water droplets adhering to the window glass due to a temperature difference inside and outside the vehicle while traveling. In this way, while the vehicle is stopped during warm-up operation and the operation switch 2 is in the ON state, the high voltage obtained by stopping the normal voltage control is kept high without being taken by the battery 7 or other electric loads. Since it can be directly applied to the electric resistor 1, melting of ice such as frost and snow can be performed in a short time, while normal voltage control via the battery 7 is performed while the vehicle is traveling and the operation switch 2 is in the ON state. Since the voltage is applied to the electric resistor 1, the generated voltage is set to the battery 7
And the electric resistance 1 are supplied to both of them and the melting of the battery can be continued in parallel while preventing the battery from going up, so that ice such as frost and snow can be sufficiently melted.
〈考案の効果〉 本考案は、以上説明したように、車両停止中でかつ作動
スイッチがオン状態で、通常電圧制御を停止させて第１
電圧よりも昇圧された第２電圧をバッテリ等の電気負荷
側の出力端子をバイパスして発熱素子側の出力端子に印
加する第２電圧印加手段と、車両走行中でかつ作動スイ
ッチがオン状態で、通常電圧制御手段により通常電圧制
御された第１電圧をバッテリ等の電気負荷側の出力端子
に印加し、該印加された第１電圧を発熱素子側の出力端
子に印加させるように切り換え制御する通常電圧切換制
御手段を備えたので、バッテリや他の電気負荷にダメー
ジを与えることなく、霜，雪等の氷の溶融を充分に行え
ると共に走行中に発生する水滴の除去を行うことができ
る。<Effect of the Invention> As described above, the present invention is designed to stop the normal voltage control when the vehicle is stopped and the operation switch is in the ON state.
Second voltage applying means for applying a second voltage, which is higher than the voltage, to the output terminal on the heating element side by bypassing the output terminal on the electric load side such as a battery, and while the vehicle is traveling and the operation switch is in the ON state. The switching control is performed so that the first voltage controlled by the normal voltage control means is applied to the output terminal on the electric load side such as a battery, and the applied first voltage is applied to the output terminal on the heating element side. Since the normal voltage switching control means is provided, it is possible to sufficiently melt ice such as frost and snow and to remove water droplets generated during traveling without damaging the battery or other electric loads.
第１図は本考案の一実施例を示す回路図、第２図は融氷
装置の従来例を示す回路図である。 １……電気抵抗体、２……融氷作動スイッチ、３……コ
ントロールリレー、５……オルタネータ、７……バッテ
リ、10……シフト位置センサ、12……電子燃料制御装
置、21……電圧切換リレー、22……制御ユニットFIG. 1 is a circuit diagram showing an embodiment of the present invention, and FIG. 2 is a circuit diagram showing a conventional example of an ice melting device. 1 ... Electric resistor, 2 ... Ice melting operation switch, 3 ... Control relay, 5 ... Alternator, 7 ... Battery, 10 ... Shift position sensor, 12 ... Electronic fuel control device, 21 ... Voltage Switching relay, 22 ... Control unit
Claims (1)
ウを加熱する発熱素子と、 該発熱素子を加熱動作させる作動スイッチと、 車両の停止の有無を検出する車両停止状態検出手段と、 オルタネータの出力電圧を第１電圧になるように通常電
圧制御を行う通常電圧制御手段と、 該通常電圧制御の第１電圧をバッテリ等の電気負荷側の
出力端子に印加する第１電圧印加手段と、 車両停止中でかつ作動スイッチがオン状態で、前記通常
電圧制御を停止させて第１電圧よりも昇圧された第２電
圧を前記バッテリ等の電気負荷側の出力端子をバイパス
して前記発熱素子側の出力端子に印加する第２電圧印加
手段と、 前記車両走行中でかつ作動スイッチがオン状態で、前記
通常電圧制御手段により通常電圧制御された第１電圧を
バッテリ等の電気負荷側の出力端子に印加し、該印加さ
れた第１電圧を前記発熱素子側の出力端子に印加させる
ように切り換え制御する通常電圧切換制御手段と、を備
えたこと を特徴とする車両用ウインドウの加熱装置。1. A heating element mounted on a vehicle window for heating the window, an operation switch for heating the heating element, a vehicle stop state detecting means for detecting whether or not the vehicle is stopped, and an output voltage of an alternator. The normal voltage control means for performing the normal voltage control so that the voltage becomes the first voltage, the first voltage applying means for applying the first voltage of the normal voltage control to the output terminal on the electric load side such as the battery, and the vehicle being stopped. In addition, when the operation switch is in the ON state, the normal voltage control is stopped, and the second voltage boosted above the first voltage is bypassed to the output terminal on the electric load side such as the battery to bypass the output terminal on the heating element side. Second voltage applying means for applying the first voltage, which is normally voltage-controlled by the normal voltage control means while the vehicle is traveling and the operation switch is in an ON state, to an electric negative voltage of a battery or the like. A normal voltage switching control means that controls switching so that the first voltage applied to the output terminal on the side of the heating element is applied to the output terminal on the side of the heating element. Heating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988039667U JPH0742886Y2 (en) | 1988-03-28 | 1988-03-28 | Vehicle window heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988039667U JPH0742886Y2 (en) | 1988-03-28 | 1988-03-28 | Vehicle window heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01147768U JPH01147768U (en) | 1989-10-12 |
| JPH0742886Y2 true JPH0742886Y2 (en) | 1995-10-04 |
Family
ID=31266163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988039667U Expired - Lifetime JPH0742886Y2 (en) | 1988-03-28 | 1988-03-28 | Vehicle window heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0742886Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59223540A (en) * | 1983-06-02 | 1984-12-15 | Nissan Motor Co Ltd | Control device for defroster on heating wire |
-
1988
- 1988-03-28 JP JP1988039667U patent/JPH0742886Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01147768U (en) | 1989-10-12 |
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