JPH0631750Y2 - Switch device - Google Patents
Switch deviceInfo
- Publication number
- JPH0631750Y2 JPH0631750Y2 JP5965684U JP5965684U JPH0631750Y2 JP H0631750 Y2 JPH0631750 Y2 JP H0631750Y2 JP 5965684 U JP5965684 U JP 5965684U JP 5965684 U JP5965684 U JP 5965684U JP H0631750 Y2 JPH0631750 Y2 JP H0631750Y2
- Authority
- JP
- Japan
- Prior art keywords
- output voltage
- switch device
- control element
- voltage control
- thyristor
- 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
Links
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は例えば携帯用電動工具の握り部に収納して使用
される可変速スイッチ装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a variable speed switch device which is used by being housed in a grip portion of a portable power tool, for example.
第１図〜第４図、第７図及び第８図を参照して従来の電
子回路を内蔵したスイッチ装置を説明する。A conventional switch device incorporating an electronic circuit will be described with reference to FIGS. 1 to 4, FIG. 7 and FIG.
１はスイッチ装置を示し、１ａはケース、Ｔは該ケース
１ａに第１図右方向に移動可能に嵌合されたトリガであ
る。３はケース１ａに内蔵された基板であり、該基板３
上に後述する電子回路の各部品が配置され基板組立体１
８を構成している。５は発熱素子であって出力電圧制御
素子であるサイリスタ、６はダイオード、７はコンデン
サ、８はダイアック、９はリードワイヤ、１０はゲート
プリフォーム、１１は導体、１２は前記トリガＴの引き
込み量に応じてその抵抗値が変化する可変抵抗である。Reference numeral 1 denotes a switch device, 1a denotes a case, and T denotes a trigger fitted in the case 1a so as to be movable rightward in FIG. Reference numeral 3 denotes a board built in the case 1a.
The board assembly 1 on which the respective components of the electronic circuit described later are arranged
Make up eight. Reference numeral 5 is a thyristor which is a heating element and an output voltage control element, 6 is a diode, 7 is a capacitor, 8 is a diac, 9 is a lead wire, 10 is a gate preform, 11 is a conductor, and 12 is the amount of pulling of the trigger T. It is a variable resistor whose resistance value changes according to.
前記トリガＴを引くと、トリガＴの引き込み量Ｘに連動
して可変抵抗１２の抵抗値が減少し、サイリスタ５の点
弧角を増加させ、スイッチ装置１の出力電圧を増加させ
てモータＭの回転数を増加させる。トリガＴを所定引き
込み量Ｘｓ引くと、スイッチの主接片１７は端子１３か
ら端子１６に切り換わり、サイリスタ５がショートされ
るので、スイッチ装置１の出力端すなわち端子１４、１
５間には電源電圧Ｅが発生する。この関係を第８図に示
してあり、トリガＴの引き込み量Ｘに連動して端子１
４、１５間の出力電圧が増加し、Ｘｓの位置で主接片１
７が端子１６に切り換わり、全電源電圧Ｅが発生する。When the trigger T is pulled, the resistance value of the variable resistor 12 decreases in association with the pull-in amount X of the trigger T, the firing angle of the thyristor 5 is increased, and the output voltage of the switch device 1 is increased to increase the motor M. Increase the rotation speed. When the trigger T is pulled by a predetermined pull-in amount Xs, the main contact piece 17 of the switch is switched from the terminal 13 to the terminal 16, and the thyristor 5 is short-circuited. Therefore, the output end of the switch device 1, that is, the terminals 14 and 1,
The power supply voltage E is generated during the period 5. This relationship is shown in FIG. 8, and the terminal 1 is linked with the pull-in amount X of the trigger T.
The output voltage between 4 and 15 increases, and the main contact piece 1 at the position of Xs
7 is switched to the terminal 16, and the total power supply voltage E is generated.
第２図に基板組立体１８の収納状態を示しているが、収
納高さｄは基板組立体１８の全高さＣ（基板３の厚みと
冷却フィン４の厚みａとサイリスタ５とゲートプリフォ
ーム１０の厚みｂとの和）よりも大きくしておく必要が
ある。このＣの寸法が大きいと、第２図のスイッチ装置
１の全体の厚みＤが大きくなり、これを収納する電動工
具の握り部が太くなって、操作性の面から細い握り部が
要求される電動工具にあっては好ましくない。スイッチ
装置１の厚みＤを増やさないためには、発熱素子であっ
て出力電圧制御素子であるサイリスタ５及び冷却フィン
４をスイッチ装置１内に内蔵せず外部に出して外付けに
より配線する方法もあるが、この場合にはスイッチ装置
１全体としての部品点数増加、製作工数の増加及びスイ
ッチ装置１を組み込む電動工具にサイリスタ５と冷却フ
ィン４のための装着場所を新たに設けなければならない
という問題があった。The storage state of the substrate assembly 18 is shown in FIG. 2. The storage height d is the total height C of the substrate assembly 18 (the thickness of the substrate 3, the thickness a of the cooling fins 4, the thyristor 5 and the gate preform 10). (The sum of the thickness b and the thickness b)). If the size of C is large, the total thickness D of the switch device 1 in FIG. 2 becomes large, and the grip portion of the electric power tool that accommodates this becomes thick, and a thin grip portion is required in terms of operability. Not suitable for power tools. In order to prevent the thickness D of the switch device 1 from increasing, there is also a method in which the thyristor 5 and the cooling fin 4 which are heat generating elements and output voltage control elements are not built in the switch device 1 but are externally wired. However, in this case, the number of parts of the switch device 1 as a whole is increased, the number of manufacturing steps is increased, and a mounting place for the thyristor 5 and the cooling fins 4 must be newly provided in an electric tool incorporating the switch device 1. was there.
また、スイッチ装置１内に冷却フィン４等を装備した電
子回路を収納する場合には、小さなサイリスタ５を用い
る必要があるため冷却フィン４の上にサイリスタ５を配
置し、半田付等により接続しなければならないが、サイ
リスタ５を含む電子回路が小さいためにサイリスタ５、
冷却フィン４の位置決めを確実に行うのが困難で、それ
に応じた設備及び技術を必要とするという問題があっ
た。Further, when an electronic circuit equipped with the cooling fins 4 and the like is housed in the switch device 1, it is necessary to use a small thyristor 5, so the thyristor 5 is arranged on the cooling fins 4 and connected by soldering or the like. Although it must be, the thyristor 5, because the electronic circuit including the thyristor 5 is small,
There is a problem that it is difficult to reliably position the cooling fins 4, and equipment and technology corresponding to the positioning are required.
本考案の目的は、上記した従来技術の欠点をなくし、出
力電圧制御素子及び該出力電圧制御素子が発生する熱を
放散させる冷却フィンの位置決めを確実に行えるように
すると共に冷却フィン追加による厚み増加を軽減できる
ようにした小型のスイッチ装置を提供することである。An object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, to reliably position the output voltage control element and the cooling fins that dissipate the heat generated by the output voltage control element, and increase the thickness by adding the cooling fins. It is an object of the present invention to provide a small-sized switch device capable of reducing the above.
上記目的は、基板に設けられた穴または溝からなる空間
に合致する如く冷却フィンの一部に下方に突出する凹部
を設け、該凹部に出力電圧制御素子を載置させることに
より達成される。The above-mentioned object is achieved by providing a concave portion projecting downward in a part of the cooling fin so as to match with a space formed by a hole or a groove provided in the substrate, and mounting the output voltage control element in the concave portion.
出力電圧制御素子を冷却フィンの凹部に載置させると共
に冷却フィンの凹部を基板の穴または溝に装着させるこ
とにより、スイッチ装置の厚みが増すことがなくなる。By mounting the output voltage control element in the recess of the cooling fin and mounting the recess of the cooling fin in the hole or groove of the substrate, the thickness of the switch device is not increased.
〔考案の実施例〕 本考案の一実施例を示した第５図、第６図を参照して説
明する。[Embodiment of the Invention] An embodiment of the present invention will be described with reference to FIGS.
基板３には穴３０が設けられ、冷却フィン４には該穴３
０に合致する形状の凹部４０が設けられている。該凹部
４０は、第５図に示す如く、下方に突出して形成され、
凹部４０の凹み量は、サイリスタ５及びゲートプリフォ
ーム１０の厚みｂ以上とされている。サイリスタ５は冷
却フィン４の凹部４０上に載置固定される。The substrate 3 is provided with holes 30 and the cooling fins 4 are provided with the holes 3.
A recess 40 having a shape matching 0 is provided. The recess 40 is formed so as to project downward as shown in FIG.
The recess amount of the recess 40 is equal to or larger than the thickness b of the thyristor 5 and the gate preform 10. The thyristor 5 is mounted and fixed on the recess 40 of the cooling fin 4.
第３図、第７図に示すサイリスタ５、ダイアック８等の
電子回路部品及びゲートプリフォーム１０等を基板３上
に実装した場合、基板組立体１８の厚みは、第６図に示
す如く、基板３の厚みと冷却フィン４の厚みａの和だけ
となり、サイリスタ５及びゲートプリフォーム１０の厚
みは基板組立体１８の厚みに影響しなくなる。When electronic circuit components such as the thyristor 5 and the diac 8 shown in FIGS. 3 and 7 and the gate preform 10 are mounted on the substrate 3, the thickness of the substrate assembly 18 is as shown in FIG. The thickness of the thyristor 5 and the gate preform 10 does not affect the thickness of the substrate assembly 18 because only the sum of the thickness of 3 and the thickness a of the cooling fin 4 is obtained.
従って、スイッチ装置１の全体の厚みＤが小さくなり、
該スイッチ装置１が収納される電動工具の握り部が細く
なり、電動工具の操作性が向上するという副次的作用効
果を奏し得るようになる。また冷却フィン４の位置は自
動的に決まると共にサイリスタ５の位置決めは冷却フィ
ン４の凹部４０の側面を利用して行えるため、位置決め
が確実になると共に位置がずれる恐れもなくなる。Therefore, the overall thickness D of the switch device 1 is reduced,
The grip portion of the electric power tool in which the switch device 1 is housed becomes thin, and the operability of the electric power tool is improved. Further, since the position of the cooling fin 4 is automatically determined and the positioning of the thyristor 5 can be performed by utilizing the side surface of the recess 40 of the cooling fin 4, the positioning is ensured and the position is not likely to be displaced.
上記実施例においては、基板３に穴３０を設けるとした
が、溝でもよく、またその形状は冷却フィン４の凹部４
０の形状に合致するものであれば、いかなる形状であっ
てもよい。Although the holes 30 are provided in the substrate 3 in the above embodiment, they may be grooves, and the shape thereof is the concave portions 4 of the cooling fins 4.
Any shape may be used as long as it matches the shape of 0.
以上のように本考案によれば、サイリスタ等の出力電圧
制御素子の厚み分基板組立体の高さを小さくできるので
小型のスイッチ装置を安価に提供することができる。ま
た出力電圧制御素子及び冷却フィンの位置決めを確実か
つ容易に行えることができる。更にスイッチ装置が収納
される例えば電動工具等のスイッチ装置利用機器の握り
部を細くすることが可能となり、利用機器機の操作性を
向上させることが可能となる等の作用効果を奏し得る。As described above, according to the present invention, the height of the substrate assembly can be reduced by the thickness of the output voltage control element such as a thyristor, so that a small switch device can be provided at low cost. Moreover, the positioning of the output voltage control element and the cooling fin can be performed reliably and easily. Further, it is possible to make the grip portion of the device using the switch device, such as an electric tool, in which the switch device is housed thin, and to improve the operability of the device using the device.
第１図は本考案スイッチ装置の外観を示す側面図、第２
図は第１図のＡ−Ａ線断面図、第３図は従来の基板組立
体の一例を示す平面図、第４図は第３図のＩ−Ｉ線断面
図、第５図は本考案スイッチ装置を構成する基板、冷却
フィン及び出力電圧制御素子の関係の一実施例を示す斜
視図、第６図は本考案の基板組立体の一実施例を示す横
断面図、第７図はスイッチ装置とモータの接続関係を示
す電気回路図、第８図はスイッチ装置のトリガ引き込み
量と出力電圧との関係を示すグラフである。 図において、１はスイッチ装置、１ａはケース、Ｔはト
リガ、３は基板、４は冷却フィン、５はサイリスタ（出
力電圧制御素子）、１０はゲートプリフォーム、１８は
基板組立体、３０は穴、４０は凹部である。FIG. 1 is a side view showing the appearance of the switch device of the present invention, and FIG.
1 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a plan view showing an example of a conventional board assembly, FIG. 4 is a sectional view taken along the line II of FIG. 3, and FIG. FIG. 6 is a perspective view showing an embodiment of the relationship between the substrate, the cooling fins and the output voltage control element constituting the switch device, FIG. 6 is a transverse sectional view showing an embodiment of the substrate assembly of the present invention, and FIG. 7 is a switch. FIG. 8 is an electric circuit diagram showing the connection relationship between the device and the motor, and FIG. 8 is a graph showing the relationship between the trigger pull-in amount of the switch device and the output voltage. In the figure, 1 is a switch device, 1a is a case, T is a trigger, 3 is a substrate, 4 is a cooling fin, 5 is a thyristor (output voltage control element), 10 is a gate preform, 18 is a substrate assembly, and 30 is a hole. , 40 are concave portions.
Claims (1)
圧制御素子、該出力電圧制御素子を載置し、出力電圧制
御素子の発熱を放散する冷却フィン及び可変抵抗等を実
装して形成した基板組立体を収納し、トリガの引き込み
移動に連動して前記可変抵抗の抵抗値を変えて出力電圧
制御素子によって出力電圧を変えるようにしたスイッチ
装置であって、 前記基板に設けられた穴または溝に合致する形状の凹部
を冷却フィンに設け、該冷却フィンの凹部に前記出力電
圧制御素子を載置固定するようにしたことを特徴とする
スイッチ装置。1. An output voltage control element for controlling an output voltage on a substrate, a mount of the output voltage control element, and a cooling fin and a variable resistor for dissipating heat generated by the output voltage control element. A switch device for accommodating the board assembly, wherein the output voltage control element changes the resistance value of the variable resistor in conjunction with the pull-in movement of the trigger to change the output voltage. Alternatively, the switch device is characterized in that a recess having a shape matching the groove is provided in the cooling fin, and the output voltage control element is mounted and fixed in the recess of the cooling fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5965684U JPH0631750Y2 (en) | 1984-04-23 | 1984-04-23 | Switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5965684U JPH0631750Y2 (en) | 1984-04-23 | 1984-04-23 | Switch device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60172392U JPS60172392U (en) | 1985-11-15 |
| JPH0631750Y2 true JPH0631750Y2 (en) | 1994-08-22 |
Family
ID=30586283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5965684U Expired - Lifetime JPH0631750Y2 (en) | 1984-04-23 | 1984-04-23 | Switch device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0631750Y2 (en) |
-
1984
- 1984-04-23 JP JP5965684U patent/JPH0631750Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60172392U (en) | 1985-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4769557A (en) | Modular electric load controller | |
| US5200657A (en) | Apparatus for controlling or regulating equipment powered by batteries | |
| US4737661A (en) | Variable speed trigger switch | |
| US4719395A (en) | Variable speed control switch for an electric tool including a DC motor | |
| US3447057A (en) | Solid state power controller for a.c. load devices | |
| JPS63502554A (en) | motor system | |
| US4649245A (en) | Variable speed trigger switch | |
| US4734629A (en) | Variable speed trigger switch | |
| US7313001B2 (en) | Electrical switch having a mount for an electrical circuit | |
| WO1988003745A1 (en) | Control unit | |
| JPH0631750Y2 (en) | Switch device | |
| JP5942580B2 (en) | Electric tool | |
| US6049460A (en) | Trigger actuated control having supplemental heat sink | |
| JP3600560B2 (en) | Electric power steering circuit device | |
| JPS5833953A (en) | Semiconductor voltage controller for variable speed motor-driven tool | |
| JPH0646214Y2 (en) | Fan device | |
| EP4057313B1 (en) | Integrated electronic switch and power tool | |
| JP2539773Y2 (en) | Power semiconductor device connected to copper bar | |
| CN114188171B (en) | DC brushless integrated intelligent speed regulating switch | |
| US20210251076A1 (en) | Load control device and hand-assembly circuit board | |
| JPH0225267Y2 (en) | ||
| JPS5855839Y2 (en) | small electrical equipment | |
| JPH0735247Y2 (en) | Switch device | |
| JPH0737331Y2 (en) | Circuit board structure of electric curtain drive | |
| CA1270511A (en) | Variable speed control switch for an electric tool including a dc motor |