JPS62225188A - Air cooling for electronic device - Google Patents
Air cooling for electronic deviceInfo
- Publication number
- JPS62225188A JPS62225188A JP6583986A JP6583986A JPS62225188A JP S62225188 A JPS62225188 A JP S62225188A JP 6583986 A JP6583986 A JP 6583986A JP 6583986 A JP6583986 A JP 6583986A JP S62225188 A JPS62225188 A JP S62225188A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- cooling fan
- capacitor
- current
- transistor
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 238000004804 winding Methods 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Landscapes
- Motor And Converter Starters (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は起動時には冷却ファンに定格電圧を超える電圧
を供給し9回転時に電圧を降下させ風量を低下させると
ともに長寿令、低騒音、消費エネルギーの節約を行なう
電子装置の空冷方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention supplies a voltage exceeding the rated voltage to the cooling fan at the time of startup, and drops the voltage at 9 revolutions to reduce the air volume. The present invention relates to an air cooling method for electronic devices that saves energy.
〈従来の技術〉
従来一般に使用されている電子装置より発する熱の冷却
に第4歯の回路図に示すようにモータに回転翼が取シ付
けられた冷却ファンlに電源21を接続して回転させ、
空気を強制的に対流させて風をおこし、電気装置の内部
の温度を冷却する空冷方法がとられている。<Prior art> Conventionally, a power supply 21 is connected to a cooling fan l having rotary blades attached to a motor, as shown in the circuit diagram of the fourth tooth, to cool down the heat generated by electronic devices commonly used. let me,
Air cooling methods are used to generate wind through forced convection of air to cool the internal temperature of electrical equipment.
〈発明が解決しようとする問題点〉
従来の空冷方法による風量低下においては冷却ファン1
の回転軸、軸受など機械的に摩耗が甚だしく電子装置に
使用される半導体、電子部品にくらべて一般に寿命が短
く、冷却ファン1によって電子装置の寿命が左右される
。また電子装置の負荷が変化し発熱が少なくなっても冷
却ファン1は回転し2種類が限られ2発熱量に対し過大
な風量を送シ多くの電力量が無駄に使用される欠点があ
る。したがって供給される電源21の電位を下げて低速
に回転させ低騒音とし寿命の延長を行なっているが、こ
の場合一度停止した状態から起動させるとき多くの電力
量を要し、冷却ファン1の定格値以下では回転しない欠
点がある。<Problems to be solved by the invention> When the air volume decreases due to the conventional air cooling method, the cooling fan 1
The rotating shaft, bearings, etc. are subject to severe mechanical wear and generally have a shorter lifespan than semiconductors and electronic parts used in electronic devices, and the lifespan of the electronic device is determined by the cooling fan 1. Moreover, even if the load of the electronic device changes and the heat generation decreases, the cooling fan 1 rotates, and there are only two types of cooling fan 1, which has the disadvantage that an excessive amount of air is sent for the amount of heat generated, and a large amount of electric power is wasted. Therefore, the electric potential of the supplied power source 21 is lowered and the power supply 21 rotates at a low speed to reduce noise and extend the life of the fan. The disadvantage is that it does not rotate below this value.
く問題点を解決するだめの手段〉
本発明は従来のかかる欠点を除き、電子部品から発生す
る熱を強制的に空気を対流させる冷却ファン1がその起
動時に定格電圧より高い電圧を供給し2回転時に定格電
圧以下の電圧を供給維持させる電子装置の空冷方法にお
いて、電源スィッチを投入した起動時に定格電圧より高
い電圧を高圧電源より供給するとともにコンデンサに流
れる電流にて充電する間、トランジスタの電流の制御に
よってリレー、スイッチなどのスイッチング素子を動作
させて、起動後定格電圧より低い電圧の低圧電源に切り
換えて冷却ファンを低速回転させ。Means for Solving the Problems> The present invention eliminates such drawbacks of the conventional technology and provides a cooling fan 1 that forcibly convects heat generated from electronic components by supplying a voltage higher than the rated voltage at the time of startup. In an air-cooling method for electronic devices that supplies and maintains a voltage below the rated voltage during rotation, when the power switch is turned on to start up, a voltage higher than the rated voltage is supplied from the high-voltage power supply, and the transistor current is The control operates switching elements such as relays and switches, and after startup, switches to a low-voltage power supply with a voltage lower than the rated voltage, and rotates the cooling fan at low speed.
またコンデンサに規定の温度で接点が開閉する感温スイ
ッチまたは抵抗が変化するサーミスタなどの温度スイッ
チをコンデンサに並列または直列に接続して供給電圧を
変化させ冷却ファンの回転を制御させる電子装置の空冷
方法である。In addition, a temperature switch such as a temperature-sensitive switch whose contacts open and close at a specified temperature or a thermistor whose resistance changes is connected in parallel or series to the capacitor to change the supply voltage and control the rotation of the cooling fan for air cooling of electronic equipment. It's a method.
く作 用〉
コンデンサの充放電または温度スイッチによる電流の変
化によるトランジスタの電流の制御でスイッチング素子
を作動させ起動時には高圧電源で起度後は低圧電源で冷
却ファンを駆動させ風量の変化がはかられる。Function> The switching element is operated by controlling the current of the transistor due to the charging/discharging of the capacitor or the current change due to the temperature switch, and the cooling fan is driven by the low-voltage power supply after startup using the high-voltage power supply at startup, thereby preventing changes in air volume. It will be done.
〈実施例〉
本発明の電子装置の実施例は第1図に示すように冷却フ
ァン1の定格電圧以上の電圧V、をもつ高圧電源2と定
格電圧以下の電圧V2 kもつ低圧電源3とを電源とし
、高圧電源2に対しリレー接点4の接点4−2を通じ冷
却ファン1に電源が接続される。また高圧電源2はリレ
ー巻線5を通じてトランジスタ6のコレクタ・エミッタ
に接続され、ペースには抵抗7を通じてコンデンサ8々
;接続される。また低圧電源3はリレー接点4の接点4
−3を通じて冷却ファン1に電源が供給される。<Embodiment> As shown in FIG. 1, an embodiment of the electronic device of the present invention includes a high-voltage power supply 2 having a voltage V higher than the rated voltage of the cooling fan 1 and a low-voltage power supply 3 having a voltage V2k lower than the rated voltage. A power source is connected to the cooling fan 1 through the contact 4-2 of the relay contact 4 to the high voltage power source 2. Further, the high voltage power supply 2 is connected to the collector and emitter of a transistor 6 through a relay winding 5, and is connected to a capacitor 8 through a resistor 7 to the base. Also, the low voltage power supply 3 is connected to the contact 4 of the relay contact 4.
Power is supplied to the cooling fan 1 through -3.
いま電源スィッチ9を接とするとリレー巻線5を通じて
トランジスタ6にエミッタ電流が流れ抵抗7を通じてコ
ンデンサ8が充電される。この電流はペース電流となシ
コレクタ・エミッタ電流が流れリレー巻線5を励磁し、
リレー接点4は接点4−2に切り換わシ高電源2より電
源が供給されて冷却ファン1は回転し始める。さらにコ
ンデンサ8の充電が進むとトランジスタ6のペース電流
は少くなシ、コレクタ・エミッタ電流も少くなシリレー
巻線5は励磁電流不足となシ接点4−2に切り換わシ低
圧電源2から電圧v2が冷却ファンlに印加される。When power switch 9 is now turned on, emitter current flows through relay winding 5 to transistor 6 and capacitor 8 is charged through resistor 7. This current is a pace current, and a collector-emitter current flows and excites the relay winding 5.
Relay contact 4 is switched to contact 4-2, power is supplied from high power source 2, and cooling fan 1 begins to rotate. As the capacitor 8 is further charged, the pace current of the transistor 6 decreases, and the collector-emitter current also decreases.The relay winding 5 is switched to contact 4-2 when the excitation current is insufficient. v2 is applied to cooling fan l.
また本発明による他の実施例は第2図のように高圧電源
2はダイオード10を通じトランジスタ11に接続され
、そのペースは抵抗12を通シトランジスタ13に接続
される。また低電源3はダイオード14を通じて冷却フ
ァン1に接続されるとともに抵抗15を通じてコンデン
サ8ならびに抵抗17を通じてトランジスタ16に接続
され。In another embodiment of the present invention, as shown in FIG. 2, the high voltage power source 2 is connected to a transistor 11 through a diode 10, and its base is connected to a transistor 13 through a resistor 12. Further, the low power supply 3 is connected to the cooling fan 1 through a diode 14, and is also connected to a capacitor 8 through a resistor 15 and a transistor 16 through a resistor 17.
且つこのコンデンサ8はトランジスタ13のペースに接
続される。Moreover, this capacitor 8 is connected to the pace of the transistor 13.
いま電源スィッチ9を接とすると抵抗15を通じてコン
デンサ8に電流が流れて充電されるのでトランジスタ1
60ペース電圧は低下しコレクタ・エミッタ電流は流れ
ず、抵抗17を通った電流はトランジスタ13のペース
電流となシ導通させる。When the power switch 9 is connected now, current flows through the resistor 15 to the capacitor 8 and charges it, so the transistor 1
The 60 pace voltage drops and no collector-emitter current flows, causing the current through resistor 17 to conduct with the pace current of transistor 13.
したがってトランジスタ110ベース電流ヲ抵抗12を
通じて流しトランジスタ11を導通させ高圧電源2の電
圧vlがダイオード10を通じて冷却ファン1に供給さ
れて起動する。さらにコンデンサ8が充電されて両端電
位が上昇するとトランジスタ16のベース電流が流れる
にともなって上記と逆の動作でトランジスタ11は断と
なり低圧電源3からダイオード14を通じて冷却ファン
lに電圧v2が供給される。Therefore, the base current of the transistor 110 flows through the resistor 12, making the transistor 11 conductive, and the voltage vl of the high voltage power supply 2 is supplied to the cooling fan 1 through the diode 10, thereby starting the cooling fan 1. When the capacitor 8 is further charged and the potential at both ends rises, the base current of the transistor 16 flows, and the transistor 11 is turned off in the opposite operation to the above, and the voltage v2 is supplied from the low-voltage power supply 3 to the cooling fan l through the diode 14. .
さらに本発明の他の第3の実施例は第3図のよアン1に
接続し、またトランノスタエ80ベースに抵抗20とコ
ンデンサ8とを接続する。Furthermore, in a third embodiment of the present invention, a resistor 20 and a capacitor 8 are connected to the antenna 1 as shown in FIG.
が流れコンデンサ8は充電され、トランジスタ18のエ
ミッタ・コレクタ電流が流れ、高電源2の電圧が供給さ
れる。さらにコンデンサ8が充電されて、ベース電流は
少くなシ2次第に流れなくなるとともに冷却ファン1に
抵抗19を通じて電流が流れ、低電圧が供給されたと同
様に冷却ファン1は低速回転する。flows, the capacitor 8 is charged, the emitter-collector current of the transistor 18 flows, and the voltage of the high power supply 2 is supplied. Furthermore, the capacitor 8 is charged, and the base current decreases and gradually stops flowing. At the same time, current flows to the cooling fan 1 through the resistor 19, and the cooling fan 1 rotates at a low speed in the same way as when a low voltage is supplied.
したがって本発明による第1図、第2図、第3図の回路
において起動時は高い電圧が印加され。Therefore, in the circuits of FIGS. 1, 2, and 3 according to the present invention, a high voltage is applied at startup.
起動後は低い電圧に切り換わるので冷却ファン1は低速
回転となり、風量が発熱量より大なるときよりも適量に
風量を低下させ、騒音を少くさせ冷却ファンlの機械的
寿命が長くなる。After startup, the voltage is switched to a low one, so the cooling fan 1 rotates at a low speed, lowering the air volume to an appropriate amount compared to when the air volume is larger than the heat generation amount, reducing noise, and extending the mechanical life of the cooling fan I.
ここで第3図においてコンデンサ8の両端に温度スイッ
チ20の接点を接続し温度が設定値以上となったとき接
点を閉じることによってトランジ、x、plB(Dxs
:ツタ・ベース電流は常に流れて導通状態となシ高電源
2から電源が供給され冷却ファン1は高速回転し急激に
冷却を始める。さらに温度が低下すると温度スイッチ2
oの接点は断となシアコンデンサ8が充電されるとトラ
ンジスタ18は切断状態となり、電源は抵抗19を通じ
て供給され、再び冷却ファン1は低速回転する。Here, in FIG. 3, by connecting the contacts of a temperature switch 20 to both ends of the capacitor 8 and closing the contacts when the temperature exceeds a set value, the transistor x, plB (Dxs
: The ivy/base current always flows and is in a conductive state. Power is supplied from the high power supply 2, and the cooling fan 1 rotates at high speed and starts cooling rapidly. If the temperature drops further, temperature switch 2
When the shear capacitor 8 is charged, the transistor 18 is turned off, power is supplied through the resistor 19, and the cooling fan 1 rotates at a low speed again.
この種の温度スイッチ20は第1図および第2図におけ
るコンデンサ8に並列に接続することによって第3図と
同様の効果が得られる。また温度スイッチ20は感温ス
イクチ、サーミスタ、ポジティブサーミスメのような温
度によって抵抗値が変わるものであってもよい。By connecting this type of temperature switch 20 in parallel to the capacitor 8 in FIGS. 1 and 2, the same effect as in FIG. 3 can be obtained. The temperature switch 20 may also be a temperature-sensitive switch, a thermistor, or a positive thermistor whose resistance value changes depending on the temperature.
〈発明の効果〉
以上に述べたように本発明によれば、起動時は高い電圧
を供給し確実に起動させ、起動後は低い電圧に切り換え
て低速回転させ低騒音、長寿命。<Effects of the Invention> As described above, according to the present invention, a high voltage is supplied at startup to ensure startup, and after startup, the voltage is switched to a low voltage to rotate at low speed, resulting in low noise and long life.
低消費電力となシ、さらに温度スイッチを組み合わせ、
電子装置の発熱量に対し適量の風量を供給できる。Combining low power consumption and temperature switch,
It can supply an appropriate amount of air volume for the amount of heat generated by electronic devices.
第1図は本発明の電子装置の冷却方法の実施例の回路図
、第2図は本発明による他の実施例の回路図、第3図は
本発明による更に他の実施例の回路図、第4図は従来の
例の回路図である。
なお
1:冷却ファン、2:高電源、3:低電源、4:リレー
接点、5:リレー巻線、6,11,13゜16.18:
)ランソスタ、7,12,15゜17.19:抵抗、8
:コンデンサ、9:電源スィッチ、10.14:ダイオ
ード、20:温度スイッチ。
第1図
第2図FIG. 1 is a circuit diagram of an embodiment of the method for cooling an electronic device according to the present invention, FIG. 2 is a circuit diagram of another embodiment according to the present invention, and FIG. 3 is a circuit diagram of yet another embodiment according to the present invention. FIG. 4 is a circuit diagram of a conventional example. Note: 1: Cooling fan, 2: High power supply, 3: Low power supply, 4: Relay contact, 5: Relay winding, 6, 11, 13° 16.18:
) Lansosta, 7, 12, 15° 17.19: Resistance, 8
: Capacitor, 9: Power switch, 10.14: Diode, 20: Temperature switch. Figure 1 Figure 2
Claims (2)
る冷却ファンを使用する空冷方法において、起動時に定
格電圧より高い電圧を高圧電源より供給するとともに、
コンデンサに流れる電流によって充電する間の電流変化
によるトランジスタの電流の制御によってリレー、スイ
ッチング素子を動作させて切り換え、起動後前記定格電
圧より低い電圧を低電源より供給することを特徴とする
電子装置の空冷方法。1. In an air cooling method that uses a cooling fan to force air convection to transfer heat generated from electronic components, a voltage higher than the rated voltage is supplied from a high-voltage power supply at startup, and
An electronic device characterized in that a relay or a switching element is operated and switched by controlling the current of a transistor due to a current change during charging by a current flowing through a capacitor, and after startup, a voltage lower than the rated voltage is supplied from a low power source. Air cooling method.
閉または抵抗が変化する温度スイッチを前記コンデンサ
に並、直列に接続してトランジスタを制御し供給電圧を
変化させる特許請求の範囲第1項記載の電子装置の空冷
方法。2. The electronic device according to claim 1, wherein in the air cooling method, a temperature switch whose contacts open and close or whose resistance changes depending on a prescribed temperature is connected in series with the capacitor to control the transistor and change the supply voltage. Air cooling method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6583986A JPS62225188A (en) | 1986-03-26 | 1986-03-26 | Air cooling for electronic device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6583986A JPS62225188A (en) | 1986-03-26 | 1986-03-26 | Air cooling for electronic device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62225188A true JPS62225188A (en) | 1987-10-03 |
Family
ID=13298582
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6583986A Pending JPS62225188A (en) | 1986-03-26 | 1986-03-26 | Air cooling for electronic device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62225188A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05122963A (en) * | 1991-10-29 | 1993-05-18 | Nec Corp | Small-sized portable electronic device |
CN102966584A (en) * | 2012-11-23 | 2013-03-13 | 安徽鑫龙电器股份有限公司 | Control method of soft starter heat radiation fan |
-
1986
- 1986-03-26 JP JP6583986A patent/JPS62225188A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05122963A (en) * | 1991-10-29 | 1993-05-18 | Nec Corp | Small-sized portable electronic device |
CN102966584A (en) * | 2012-11-23 | 2013-03-13 | 安徽鑫龙电器股份有限公司 | Control method of soft starter heat radiation fan |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2948902B2 (en) | Electronic circuit for starting single-phase induction motors | |
JP2916251B2 (en) | Equipment used in conjunction with motor winding equipment | |
TW200417125A (en) | Fan driving circuit using a PWM input signal | |
JPH0450496B2 (en) | ||
JP2004036623A (en) | Method for regulating operation temperature of internal combustion engine and its device | |
JPS6135126A (en) | Controller of generator | |
JPS62225188A (en) | Air cooling for electronic device | |
US6570359B2 (en) | Motor starting circuit | |
JPH02223354A (en) | Fan motor of automobile blower | |
JP4696395B2 (en) | Brushless motor drive device | |
US3493776A (en) | Dc shunt starter generator | |
JP4182170B2 (en) | Inrush current suppression circuit | |
JP2689166B2 (en) | Motor control method | |
JP2705072B2 (en) | Vehicle charging device | |
JPH08186905A (en) | Inverter circuit for electric vehicle | |
JPS63170571A (en) | Starting device for direct-coupling type oil rotary vacuum pump | |
JP2760016B2 (en) | Vehicle charge control device | |
CN218733960U (en) | Starting circuit of direct current motor | |
JPH06257451A (en) | Controller of turbocharger provided with rotary electric machine | |
JP2570275B2 (en) | Start / stop device for vehicle electric load device | |
CN100461614C (en) | Rotating-speed control circuit of fan motor and voltage adjusting assembly | |
JPS6116278A (en) | Drive device for compressor | |
JPH01222652A (en) | Cooling device for electronic equipment | |
JPH11224580A (en) | Relay driving circuit | |
JPH0223119Y2 (en) |