JPH08316011A - Resistor - Google Patents
ResistorInfo
- Publication number
- JPH08316011A JPH08316011A JP12101995A JP12101995A JPH08316011A JP H08316011 A JPH08316011 A JP H08316011A JP 12101995 A JP12101995 A JP 12101995A JP 12101995 A JP12101995 A JP 12101995A JP H08316011 A JPH08316011 A JP H08316011A
- Authority
- JP
- Japan
- Prior art keywords
- resistor
- substrate
- insulating
- air
- resistance film
- 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
Landscapes
- Air-Conditioning For Vehicles (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明の抵抗器は、各種機器に印
加する電圧を複数段階に亙って制御する事により、当該
機器を所望の状態で作動させるのに使用する。例えば自
動車用空気調和装置を構成する送風機に付設し、この送
風機を構成する電動機に印加する電圧を複数段階に亙っ
て制御する事でその回転速度を複数段階に亙って調整
し、上記送風機の送風量を所望の状態とするのに利用す
る。BACKGROUND OF THE INVENTION The resistor according to the present invention is used to operate a device in a desired state by controlling the voltage applied to the device in a plurality of steps. For example, by attaching to a blower that constitutes an air conditioner for an automobile and controlling the voltage applied to the electric motor that constitutes this blower in multiple stages, the rotation speed is adjusted in multiple stages, It is used to set the desired air flow rate.
【０００２】[0002]
【従来の技術】自動車室内の空気調和を行なう為に、自
動車用空気調和装置が使用されている。自動車用空気調
和装置には種々の構造のもの存在するが、その基本的構
造は、ケーシング内に取り入れた空気を温度調整した
後、自動車室内に送り出す（送風する）。この送風量
は、ケーシング内に設けた送風機の回転速度を複数段階
に亙って制御する事により、選択された回転速度に応じ
た所望量に調整自在である。図５に、従来の自動車用空
気調和装置の１例として、実開昭５９−１６７７１５号
公報に記載されたものを示す。この図５に示した装置を
基に、自動車用空気調和装置に就いて簡単に説明する。2. Description of the Related Art An air conditioner for a vehicle is used to control the air inside a vehicle. There are various types of automobile air conditioners, but the basic structure thereof is that the air taken into the casing is temperature-adjusted and then blown out to the interior of the automobile. The amount of blown air can be adjusted to a desired amount according to the selected rotation speed by controlling the rotation speed of the blower provided in the casing in multiple stages. FIG. 5 shows an example of a conventional automobile air conditioner described in Japanese Utility Model Laid-Open No. 59-167715. An air conditioner for a vehicle will be briefly described based on the device shown in FIG.
【０００３】ケーシング１の一端（図５の左端）には空
気取り入れ口２ａ、２ｂを、他端（同図右端）には空気
送り出し口３ａ、３ｂ、３ｃを、それぞれ設けている。
上記空気取り入れ口２ａ、２ｂの一方が内気を、他方が
外気を、それぞれ取り入れる。又、上記空気送り出し口
３ａ、３ｂ、３ｃはそれぞれ、デフロスト開口、ベンチ
レーション開口、足下開口に通じる。このケーシング１
内には、送風機４とエバポレータ５とヒータコア６とを
配設している。このヒータコア６の側方（図５の上方）
には、バイパス通路７を設けている。又、このバイパス
通路７、各空気取り入れ口２ａ、２ｂ、空気送り出し口
３ａ、３ｂ、３ｃ部分には、それぞれドア８ａ〜８ｅを
設けている。そして、これら各ドア８ａ〜８ｅの開度に
応じた量の空気が、それぞれ各ドア８ａ〜８ｅ設置部分
を通過する様にしている。Air inlets 2a and 2b are provided at one end (left end in FIG. 5) of the casing 1, and air outlets 3a, 3b and 3c are provided at the other end (right end in FIG. 5).
One of the air intake ports 2a, 2b takes in the inside air and the other takes in the outside air. The air outlets 3a, 3b and 3c communicate with the defrost opening, the ventilation opening and the foot opening, respectively. This casing 1
A blower 4, an evaporator 5 and a heater core 6 are arranged inside. Lateral side of the heater core 6 (upper side in FIG. 5)
A bypass passage 7 is provided in the. Further, doors 8a to 8e are provided in the bypass passage 7, the air intake ports 2a and 2b, and the air delivery ports 3a, 3b and 3c, respectively. Then, an amount of air corresponding to the opening degree of each of the doors 8a to 8e passes through the installation portion of each of the doors 8a to 8e.
【０００４】空気調和装置の使用時には、上記各ドア８
ａ〜８ｅを所望の開度とすると共に上記送風機４を運転
する。そして、空気取り入れ口２ａ、２ｂの少なくとも
一方から取り入れた空気を、上記エバポレータ５、及び
ヒータコア６或いはバイパス通路７を通過させる。これ
により、エアミックスチャンバ９に達した空気を所望温
度とし、上記各ドア８ｃ〜８ｅの開閉状態に応じて所望
の空気送り出し口３ａ〜３ｃ（の少なくとも一つ）から
送り出す。When the air conditioner is used, the doors 8 mentioned above are used.
The blower 4 is operated while a to 8e are set to desired openings. Then, the air taken in from at least one of the air intake ports 2a, 2b is passed through the evaporator 5, the heater core 6 or the bypass passage 7. As a result, the air that has reached the air mix chamber 9 is brought to a desired temperature, and is sent out from (at least one of) the desired air outlets 3a to 3c according to the open / closed state of the doors 8c to 8e.
【０００５】自動車室内に送り出す、上記所望温度の空
気の送風量は、上記送風機４の回転速度を制御する事に
より調整する。この為に上記送風機４には、その回転速
度を複数段に亙って制御する為の制御装置を付設してい
る。この制御装置の存在により、上記送風機４を構成す
る電動機の回転速度を、例えば、高速（Ｈｉ）、やや高
速（Ｍｈ）、やや低速（ＭＬ）、低速（Ｌｏ）と言っ
た、複数段階に切り換え自在である。従って、上記送風
機４の回転速度（即ち、送風量）が、選択した上記回転
速度に応じて調整される。この送風量の調整は、インス
ツルメントパネル等に設けたスイッチを操作する事で行
なう。The amount of air blown into the vehicle compartment at the desired temperature is adjusted by controlling the rotation speed of the blower 4. For this reason, the blower 4 is provided with a control device for controlling the rotation speed thereof in a plurality of stages. Due to the presence of this control device, the rotation speed of the electric motor that constitutes the blower 4 is switched to a plurality of stages such as high speed (Hi), slightly high speed (Mh), slightly low speed (ML), and low speed (Lo). You are free. Therefore, the rotation speed of the blower 4 (that is, the air flow rate) is adjusted according to the selected rotation speed. The amount of air blown is adjusted by operating a switch provided on the instrument panel or the like.
【０００６】上記制御装置として、従来から上記電動機
に印加する電圧を変化させる抵抗器が用いられている。
この様な抵抗器としては、例えば実開平１−１２５７０
７号公報に記載されている様な、扁平な絶縁基板上に抵
抗体を設けたものが知られている。図６は、上記公報に
記載された抵抗器を示している。この図６に示した抵抗
器１８は、扁平な絶縁基板１０上に抵抗体１１を、図示
の様に蛇行した状態で添設している。上記絶縁基板１０
としては、例えば平板状の鉄板の表裏両面にガラス等の
絶縁材を設けた、いわゆるホーローを採用できる。又、
上記抵抗体１１は、銀−パラジウム合金等の導電材を、
スクリーン印刷、スパッタ等の従来から知られた方法に
よって、上記絶縁基板１０に添設する。A resistor for changing the voltage applied to the electric motor has been conventionally used as the control device.
As such a resistor, for example, the actual Kaihei 1-2570
It is known that a resistor is provided on a flat insulating substrate as described in Japanese Patent Publication No. FIG. 6 shows the resistor described in the above publication. In the resistor 18 shown in FIG. 6, the resistor 11 is attached on the flat insulating substrate 10 in a meandering manner as shown in the figure. The insulating substrate 10
For example, a so-called enamel can be adopted in which an insulating material such as glass is provided on both front and back surfaces of a flat iron plate. or,
The resistor 11 is made of a conductive material such as a silver-palladium alloy.
It is attached to the insulating substrate 10 by a conventionally known method such as screen printing or sputtering.
【０００７】上記抵抗体１１の両端部１１ａ、１１ｄ
は、それぞれ絶縁基板１０の一側端部（図６の上側端
部）に位置させる。又、上記抵抗体１１の中間部２個所
位置からは、延出部１１ｂ、１１ｃを上記一側端部にま
で延出している。そして、これら両端部１１ａ、１１ｄ
及び延出部１１ｂ、１１ｃに端子１２ａ〜１２ｄを接続
している。これら各端子１２ａ〜１２ｄは、それぞれ上
記インスツルパネル等に設けたスイッチ１３の各接点１
３ａ〜１３ｄに電気的に接続される。そして、図６に示
す様に、上記抵抗器１８、スイッチ１３、電源１４、上
記送風機４を構成する電動機１５を直列に接続してい
る。図６に於いて１６は、この回路に過電流が流れるの
を防止する為のヒューズである。又、上記抵抗器１８の
抵抗体１１の途中部分にも同様の作用を有するヒューズ
１７を設けている。これらヒューズ１６、１７により、
上記電動機１５がショートしたり、或はロックした様な
場合に、この回路に過電流が流れるのを防止し、上記電
動機１５が焼き付く等の故障を未然に防ぐ。Both ends 11a, 11d of the resistor 11 are
Are located at one end (upper end in FIG. 6) of the insulating substrate 10, respectively. Further, extending portions 11b and 11c extend from the two positions of the intermediate portion of the resistor 11 to the one end portion. And these both ends 11a, 11d
The terminals 12a to 12d are connected to the extending portions 11b and 11c. These terminals 12a to 12d correspond to the contacts 1 of the switch 13 provided on the instrument panel or the like.
3a to 13d are electrically connected. Then, as shown in FIG. 6, the resistor 18, the switch 13, the power source 14, and the electric motor 15 constituting the blower 4 are connected in series. In FIG. 6, reference numeral 16 is a fuse for preventing an overcurrent from flowing through this circuit. In addition, a fuse 17 having the same function is provided in the middle of the resistor 11 of the resistor 18. With these fuses 16 and 17,
When the electric motor 15 is short-circuited or locked, an overcurrent is prevented from flowing in this circuit, and a failure such as seizure of the electric motor 15 is prevented.
【０００８】上述の様な抵抗器１８を組み込んだ制御回
路により送風機４を作動させ、前述した様な自動車用空
気調和装置により所望の温度とされた空気を、自動車室
内に吹き出させる際の作用は、次の通りである。先ず、
乗員の所望とする送風量を得るべく、上記スイッチ１３
の接続端子１３ｅを各接点１３ａ〜１３ｄの何れかに接
続する。例えば、接続端子１３ｅを図６の最も左側に設
けた接点１３ａ（Ｈｉ）に接続すると、上記電動機１５
は、上記抵抗器１８による電圧降下がない状態で作動す
る。従って、この電動機１５は高速回転し、送風機４の
送風量が最大となる。When the blower 4 is operated by the control circuit incorporating the resistor 18 as described above, and the air having the desired temperature is blown out into the interior of the automobile by the automobile air conditioner as described above, , As follows. First,
The switch 13 is provided in order to obtain the air flow desired by the occupant.
The connection terminal 13e is connected to any of the contacts 13a to 13d. For example, when the connection terminal 13e is connected to the contact 13a (Hi) provided on the leftmost side in FIG.
Operates in the absence of a voltage drop across the resistor 18. Therefore, the electric motor 15 rotates at high speed, and the amount of air blown by the blower 4 is maximized.
【０００９】上記接続端子１３ｅを接点１３ｂ（Ｍｈ）
に接続すると、上記抵抗器１８を構成する抵抗体１１の
うち、図６に斜格子で示した、端子１２ａから端子１２
ｂまでの部分が、この回路に直列に接続された電路とし
て機能する。従って、この部分の抵抗値に応じた電圧降
下分だけ上記電動機１５に印加される電圧が減少し、こ
の電動機１５の回転速度がその分減少する。この為、送
風機４の送風量が『Ｈｉ』を選択した場合よりも減少す
る。上記接続端子１３ｅを、それぞれ接点１３ｃ（Ｍ
Ｌ）、１３ｄ（Ｌｏ）に接続した場合、上記抵抗体１１
のうちの電路として機能する部分の長さが長くなる。即
ち、接続端子１３ｅを接点１３ｃに接続した場合、抵抗
体１１のうちの端部１１ａから延出部１１ｃまでの部分
が電路として機能する。又、接続端子１３ｅを接点１３
ｄに接続した場合、抵抗体１１の全長（端部１１ａから
端部１１ｄまでの部分）が電路として機能する。この様
に、電路が長くなる事に伴ってその抵抗値が増加する
為、その分上記電動機１５に印加される電圧が減少し、
送風機４の送風量が上述した場合よりも、更に減少す
る。The connection terminal 13e is connected to the contact 13b (Mh).
Of the resistors 11 constituting the resistor 18, the terminals 12a to 12 shown by slanting grids in FIG. 6 are connected.
The part up to b functions as an electric circuit connected in series to this circuit. Therefore, the voltage applied to the electric motor 15 is reduced by a voltage drop corresponding to the resistance value of this portion, and the rotation speed of the electric motor 15 is reduced accordingly. For this reason, the amount of air blown by the blower 4 is smaller than that when "Hi" is selected. The connection terminals 13e are connected to the contacts 13c (M
L), 13d (Lo) when connected to the resistor 11
The length of the part that functions as an electric path becomes longer. That is, when the connection terminal 13e is connected to the contact 13c, the portion of the resistor 11 from the end 11a to the extension 11c functions as an electric path. Also, connect the connection terminal 13e to the contact 13
When connected to d, the entire length of the resistor 11 (the portion from the end 11a to the end 11d) functions as an electric path. In this way, the resistance value increases as the electric path becomes longer, and the voltage applied to the electric motor 15 decreases accordingly.
The amount of air blown by the blower 4 is further reduced as compared with the case described above.
【００１０】[0010]
【発明が解決しようとする課題】ところが、上述の様に
構成され作用する従来の抵抗器１８には、次に述べる様
な解決すべき課題が存在する。即ち、接点１３ａ以外の
接点１３ｂ〜１３ｄを選択して送風機４を運転すると、
上記抵抗体１１部分ではジュール発熱が生じるが、電路
となる抵抗体１１の面積が小さい為に局部発熱が生じ
る。However, the conventional resistor 18 constructed and operated as described above has the following problems to be solved. That is, when the contacts 13b to 13d other than the contact 13a are selected and the blower 4 is operated,
Joule heat is generated in the resistor 11 portion, but local heat is generated because the area of the resistor 11 serving as an electric path is small.
【００１１】更に、上記局部発熱に基づいて抵抗器１８
の表面の温度分布が不均一になると、抵抗器１８を構成
する絶縁基板１０に熱歪が生じ易くなる。本発明の抵抗
器は、上述の様な不都合を何れも解消すべく考えたもの
である。Further, based on the above-mentioned local heat generation, the resistor 18
When the temperature distribution on the surface of the resistor is non-uniform, thermal strain is likely to occur in the insulating substrate 10 forming the resistor 18. The resistor of the present invention is designed to eliminate any of the above inconveniences.
【００１２】[0012]
【課題を解決するための手段】本発明の抵抗器は、少な
くとも表面を絶縁材により覆われた平板状の基板と、こ
の基板の少なくとも片面の大部分を覆う抵抗皮膜と、少
なくとも一端を上記基板の端縁に通じさせた、上記抵抗
皮膜が存在しない絶縁部と、上記基板の端縁に設けられ
てそれぞれが上記抵抗皮膜の端部に導通する複数の端子
とを備えている。SUMMARY OF THE INVENTION A resistor according to the present invention is a flat plate-shaped substrate having at least a surface covered with an insulating material, a resistive film covering most of at least one surface of the substrate, and at least one end of the substrate. And an insulating portion that does not have the resistance film present therein, and a plurality of terminals that are provided at the edge of the substrate and that are electrically connected to the ends of the resistance film.
【００１３】[0013]
【作用】本発明の抵抗器により、自動車用空気調和装置
の送風機を構成する電動機等、各種機器に印加する電圧
を制御し、当該機器を所望の状態で作動させる際の作用
は、前述した従来の抵抗器と同様である。特に本発明の
抵抗器は、電路として機能する抵抗皮膜部分の面積を大
きくしている為、局部的な発熱が生じにくく、抵抗器全
面の温度がほぼ均一になる。言い換えれば、極端に温度
が高くなる部分がなくなる。この結果、この抵抗器の周
辺に配置された部材や機器に対する熱影響が小さくな
り、基板に熱歪が生じる事も防止される。With the resistor of the present invention, the voltage applied to various devices such as an electric motor that constitutes a blower of an air conditioner for an automobile is controlled to operate the device in a desired state. It is similar to the resistor. In particular, in the resistor of the present invention, since the area of the resistance film portion functioning as an electric path is large, local heat generation is unlikely to occur and the temperature of the entire surface of the resistor becomes substantially uniform. In other words, there is no part where the temperature becomes extremely high. As a result, the thermal effect on the members and devices arranged around this resistor is reduced, and the occurrence of thermal strain on the substrate is also prevented.
【００１４】[0014]
【実施例】図１〜４は本発明の実施例を示している。本
実施例の抵抗器１８ａに於いては、アルミナ（Ａl2Ｏ
3 ）等の耐熱材製の粉末を燒結する事により得られるセ
ラミック製で、平板状の基板１９を採用している。尚、
図２には基板１９の厚さ寸法ｔを誇張して描いている。
そして、この基板１９の表面及び裏面には、それぞれ図
１、３及び図２、３に示す様なパターンで抵抗皮膜２１
を添設している。この抵抗皮膜２１の厚さは、例えば５
〜３０μm 程度の範囲で、必要とする抵抗値に応じて、
設計的に定める。図１に示す上記表面は、その幅方向一
半部（図１の右半部）と他半部（図１の左半部）とを、
それぞれ抵抗皮膜２１により形成される第一の抵抗体２
６と第二の抵抗体２７とに区画する様に、絶縁部２２ａ
を設けている。但し、この絶縁部２２ａによって区画さ
れる上記第一、第二の抵抗体２６、２７の端部同士は、
基板１９の一部で、後述する端子２５ａ〜２５ｄを設け
ない側の端部（図１の下端部）で、例えば真鍮製端子２
９を半田付けする事により導通させている。1 to 4 show an embodiment of the present invention. In the resistor 18a of this embodiment, alumina (Al 2 O) is used.
3 ) A flat plate-shaped substrate 19 made of ceramic is obtained by sintering a powder made of a heat-resistant material such as 3 ). still,
In FIG. 2, the thickness t of the substrate 19 is exaggeratedly drawn.
Then, on the front surface and the back surface of the substrate 19, a resistive film 21 is formed in a pattern as shown in FIGS.
Is attached. The thickness of the resistance film 21 is, for example, 5
Depending on the required resistance value, within the range of ~ 30 μm
Determine by design. The surface shown in FIG. 1 has a width-direction half part (right half part in FIG. 1) and another half part (left half part in FIG. 1).
First resistor 2 formed by resistive film 21 respectively
6 and the second resistor 27 so as to be divided into the insulating portion 22a.
Is provided. However, the ends of the first and second resistors 26 and 27 partitioned by the insulating portion 22a are
At a part of the substrate 19 where the terminals 25a to 25d, which will be described later, are not provided (the lower end in FIG. 1), for example, the brass terminal 2
It is made conductive by soldering 9.
【００１５】一方、図２に示す上記裏面には、２つの絶
縁部２２ｂ、２２ｃを設けている。これら各絶縁部２２
ｂ、２２ｃのそれぞれ一端部（図２の右下端部）は、こ
の裏面の一端部（図２の右下端部）で、基板１９の外周
縁部に形成した絶縁部２３に達する。尚、これら各絶縁
部２２ｂ、２２ｃの一端部は何れも、上記表面に形成し
た絶縁部２２ａの各端子２５ａ〜２５ｂを設ける側の端
部（図１の上端部、図２の右下端部）よりも幅方向一側
（図１の左側、図２の左下側）に存在する。この裏面の
うち、上記絶縁部２２ｂ、２２ｃ、２３以外の部分は、
抵抗皮膜２１により覆われている。又、これら両絶縁部
２２ｂ、２２ｃにより抵抗皮膜２１が不連続となる事の
ない様、両絶縁部２２ｂ、２２ｃ同士が交錯或は接触し
ない様にしている。そして、この裏面に設けた抵抗皮膜
２１部分のうち、外側部分を第三の抵抗体２８とし、内
側部分を第四の抵抗体３６としている。On the other hand, two insulating portions 22b and 22c are provided on the back surface shown in FIG. Each of these insulating parts 22
One end portion (the right lower end portion in FIG. 2) of each of b and 22c reaches the insulating portion 23 formed on the outer peripheral edge portion of the substrate 19 at the one end portion (the right lower end portion in FIG. 2) on the back surface. It should be noted that one end of each of the insulating portions 22b and 22c is an end portion on the side where the terminals 25a to 25b of the insulating portion 22a formed on the surface are provided (the upper end portion of FIG. 1, the lower right end portion of FIG. 2). It exists on one side in the width direction (left side in FIG. 1, lower left side in FIG. 2). Of this back surface, the parts other than the insulating parts 22b, 22c, and 23 are
It is covered with the resistance film 21. Further, the two insulating portions 22b and 22c are arranged so that the resistance film 21 does not become discontinuous so that the two insulating portions 22b and 22c do not intersect or contact with each other. The outer portion of the resistive film 21 provided on the back surface is the third resistor 28 and the inner portion is the fourth resistor 36.
【００１６】上記基板１９の一端部（図１の上端部、図
２の右下端部）には、端子２５ａ〜２５ｄを設ける。即
ち、上記第二の抵抗体２７の端部で、上記絶縁部２２ａ
よりも幅方向一側（図１の右側、図２の右上側））部分
に端子２５ａを、上記第三、第四の両抵抗体２８、３６
の一端部で、これら両抵抗体２８、３６同士の連続部分
に端子２５ｂを、上記第四の抵抗体３６の他端部分に端
子２５ｃを、第一の抵抗体２６の端部及び第三の抵抗体
２８の他端部分に端子２５ｄを、それぞれ設けている。
このうちの端子２５ｄは、基板１９の表裏面にそれぞれ
存在する第二、第三の抵抗体２７、２８同士を導通する
為の導通金具３２に接続する。導通金具３２としては、
両抵抗体２７、２８の端部に設けた、後述する半田層３
１、３１にそれぞれ両端部が当接するコ字形状のもの
等、様々な形状のものを使用できる。Terminals 25a to 25d are provided at one end of the substrate 19 (upper end in FIG. 1, lower right end in FIG. 2). That is, at the end of the second resistor 27, the insulating portion 22a
A terminal 25a is provided on one side in the width direction (on the right side in FIG. 1 and on the upper right side in FIG. 2) than the third and fourth resistors 28, 36.
At one end of the first resistor 26, a terminal 25b is provided at a continuous portion between the two resistors 28, 36, a terminal 25c is provided at the other end of the fourth resistor 36, and an end portion of the first resistor 26 and a third resistor Terminals 25d are provided at the other ends of the resistors 28, respectively.
The terminal 25d among them is connected to a conductive metal fitting 32 for electrically connecting the second and third resistors 27 and 28 present on the front and back surfaces of the substrate 19, respectively. As the conduction metal fitting 32,
Solder layer 3 which will be described later and is provided at the end of both resistors 27 and 28.
It is possible to use various shapes such as a U-shape in which both ends are in contact with 1 and 31, respectively.
【００１７】上述した様な抵抗器１８ａを造る場合、本
実施例に於いては以下の様に行なっている。即ち、図３
に示す様に、アルミナ製で平板状の基板材２０の表面
に、上記抵抗皮膜２１を形成する。基板材２０は、上記
基板１９と同一の幅寸法、及び基板１９の長さ寸法の２
倍の長さ寸法を有する。そして、この基板材２０を２分
割し、互いに貼着する事で上記基板１９とする。尚、本
実施例に於いては、上記基板１９（基板材２０）をアル
ミナ製としているが、他にも、ホーロー、或は耐熱性合
成樹脂等、種々の耐熱製絶縁材料を採用できる。又、本
実施例に於いては抵抗皮膜２１を、Ｎi −Ｐの無電解め
っきにより形成している。無電解めっきとは、基板表面
に、外部電源を用いる事なく金属塩液中の金属イオンを
析出させるもので、いわゆる化学めっきがこれに含まれ
る。上記抵抗皮膜２１を形成する場合、上記Ｎi −Ｐの
無電解めっきの他、各種導電体を、厚膜印刷、薄膜蒸
着、スパッタ等、従来から知られた種々の方法により行
なえる。When the resistor 18a as described above is manufactured, it is carried out as follows in this embodiment. That is, FIG.
As shown in, the resistance film 21 is formed on the surface of the flat plate-shaped substrate material 20 made of alumina. The substrate material 20 has the same width dimension as that of the substrate 19 and two length dimensions of the substrate 19.
Has double length dimension. Then, the substrate material 20 is divided into two and attached to each other to form the substrate 19. In the present embodiment, the substrate 19 (substrate material 20) is made of alumina, but various heat-resistant insulating materials such as enamel or heat-resistant synthetic resin may be used. Further, in this embodiment, the resistance film 21 is formed by Ni-P electroless plating. The electroless plating is a method for depositing metal ions in a metal salt solution on the substrate surface without using an external power source, and includes so-called chemical plating. When the resistance film 21 is formed, various conductors can be applied by various conventionally known methods such as thick film printing, thin film deposition, and sputtering, in addition to the Ni-P electroless plating.
【００１８】上記基板１９の表面に形成する上記抵抗皮
膜２１の形状は、最終的に図３に示す通りとする。即
ち、基板材２０の表面に上記抵抗皮膜２１を形成した
後、図３に示す形状の絶縁部２２ａ〜２２ｃを、エッチ
ングにより形成する。尚、このエッチング処理を行なう
為の各種行程に就いての説明は本発明の要部ではない
為、省略する。エッチング処理後、上記基板材２０表面
に存在する抵抗体及び絶縁部のパターンは、図３に示す
様になる。即ち、上記基板材２０の片半部（図３の上半
部）には、その幅方向一半部（図３の左半部）と他半部
（図３の右半部）とを、それぞれ第一の抵抗体２６と第
二の抵抗体２７とに区画する様に、上記絶縁部２２ａを
設ける。上記絶縁部２２ａの両端部（図３の上下両端
部）は、それぞれ基板材２０の外周縁部及び中央部に設
けた絶縁部２３に達する。但し、上記第一、第二の抵抗
体２６、２７同士は、基板材２０の一端部で、上記絶縁
部２２ａの両側に半田層３０、３０を設け、これら両半
田層３０、３０同士を前記真鍮製端子２９（図１〜２）
によって接続する。この接続部分がヒューズとして機能
する。従って、この部分に於いて第一、第二の両抵抗体
２６、２７が導通する。The shape of the resistance film 21 formed on the surface of the substrate 19 is finally as shown in FIG. That is, after forming the resistance film 21 on the surface of the substrate material 20, the insulating portions 22a to 22c having the shape shown in FIG. 3 are formed by etching. It should be noted that the description of various steps for performing this etching process is not an essential part of the present invention, and therefore will be omitted. After the etching process, the patterns of the resistors and the insulating portions existing on the surface of the substrate material 20 are as shown in FIG. That is, one half (upper half of FIG. 3) of the substrate material 20 has one half in the width direction (left half in FIG. 3) and the other half (right half in FIG. 3). The insulating portion 22a is provided so as to be divided into the first resistor 26 and the second resistor 27. Both ends (upper and lower ends in FIG. 3) of the insulating portion 22a reach the insulating portions 23 provided at the outer peripheral edge portion and the central portion of the substrate material 20, respectively. However, the first and second resistors 26 and 27 are provided with solder layers 30 and 30 on both sides of the insulating portion 22a at one end of the substrate material 20, and the solder layers 30 and 30 are connected to each other. Brass terminal 29 (Figs. 1-2)
Connect by. This connecting portion functions as a fuse. Therefore, the first and second resistors 26 and 27 are electrically connected in this portion.
【００１９】一方、上記基板材２０の他半部（図３の下
半部）には、２つの絶縁部２２ｂ、２２ｃを設けてい
る。これら各絶縁部２２ｂ、２２ｃのそれぞれ一端部
（図３の上端部）は、上記中央部の絶縁部２３に達す
る。尚、これら各絶縁部２２ｂ、２２ｃの一端部は何れ
も、上記基板材２０の片半部に形成した絶縁部２２ａの
端部で、上記基板材２０の中央寄り部分よりも幅方向他
側（図３の右側）に存在する様に形成する。又、これら
両絶縁部２２ｂ、２２ｃにより抵抗皮膜２１が不連続と
ならない様、両絶縁部２２ｂ、２２ｃ同士が交錯或は接
触しない様にしている。これら両絶縁部２２ｂ、２２ｃ
形成後の上記抵抗皮膜２１部分を第三、第四の抵抗体２
８、３６としている。更に、この第四の抵抗体３６の幅
寸法を、同一の幅寸法ｃに規制している。これは、当該
部分の幅寸法が一部分で狭くなる事によって局部的に温
度が上昇するのを防止する為である。On the other hand, two insulating portions 22b and 22c are provided on the other half portion (lower half portion of FIG. 3) of the substrate material 20. One end portion (the upper end portion in FIG. 3) of each of the insulating portions 22b and 22c reaches the insulating portion 23 at the central portion. It should be noted that one end of each of the insulating portions 22b and 22c is an end portion of the insulating portion 22a formed in one half of the substrate material 20 and is located on the other side in the width direction than the central portion of the substrate material 20 ( It is formed so that it exists on the right side of FIG. Further, the resistance film 21 is not discontinuous by the two insulating portions 22b and 22c, and the insulating portions 22b and 22c are not crossed or contact with each other. Both insulating parts 22b and 22c
After forming the above-mentioned resistive film 21, the third and fourth resistive elements 2
8 and 36. Further, the width dimension of the fourth resistor 36 is restricted to the same width dimension c. This is to prevent the temperature from rising locally due to the narrow width of the portion.
【００２０】上記基板材２０の表面に、上述の様なパタ
ーンで抵抗皮膜２１及び各絶縁部２２ａ〜２２ｃを設
け、第一〜第四抵抗体２６〜２８、３６を形成したなら
ば、この基板材２０を中心線３７で、レーザーカッター
等、従来知られた切断方法によって２分割する。そし
て、基板材２０を２分割して得られる基板片２４ａ、２
４ｂを、互いの裏面（図３の裏面）同士を全面に亙り密
接させた状態で接合する。これにより、基板１９を得
る。この際、各基板片２４ａ、２４ｂとなる上記基板材
２０の片半部と他半部との、それぞれ中心線３７側の端
部同士が互いに重なる様に接合する。即ち、上記基板材
２０を中心線３７で図３の裏面側に向け折り畳んだ状態
で重ね合わせ、接合する。If the resistive film 21 and the insulating portions 22a to 22c are provided on the surface of the substrate material 20 in the above-described pattern and the first to fourth resistors 26 to 28 and 36 are formed, this substrate is used. The plate member 20 is divided into two along the center line 37 by a conventionally known cutting method such as a laser cutter. Then, substrate pieces 24a, 2 obtained by dividing the substrate material 20 into two
4b are bonded in a state where their respective back surfaces (back surfaces in FIG. 3) are in close contact with each other over the entire surface. Thereby, the substrate 19 is obtained. At this time, one half and the other half of the substrate material 20 to be the respective substrate pieces 24a and 24b are joined so that the ends on the side of the center line 37 overlap each other. That is, the substrate material 20 is overlapped and joined in a state of being folded toward the back surface side of FIG.
【００２１】上述した様に基板１９を形成したならば、
前述した様にこの基板１９の一端部に端子２５ａ〜２５
ｄを設ける。尚、上記第一〜第四の抵抗体２６〜２８、
３６の端部で、これら各端子２５ａ〜２５ｄを接続する
部分には、半田層３１、３１を設け、この半田層３１、
３１を介して各端子２５ａ〜２５ｄを上記各抵抗体２６
〜２８、３６の端部に接続する。但し、前述した様に端
子２５ｄ接続部分は、第一、第三の抵抗体２６、２８を
導通すべく導通金具３２を両抵抗体２６、２８に掛け渡
す様に設けた後に、上記端子２５ｄを設ける。尚、端子
２５ｄと導通金具３２とを一体とする事もできる。上述
の実施例に於いては、１枚の基板材２０を２分割し、互
いに貼着する事で基板１９を設ける例に就いて説明した
が、同一形状の２枚の絶縁材製の基板片２４ａ、２４ｂ
のそれぞれ表面に、上記のパターンの抵抗皮膜２１を形
成した後、両基板片２４ａ、２４ｂの裏面同士を接着し
たり、１枚の絶縁基板１９の両面に上記パターンの抵抗
皮膜２１を形成する事もできる。但し、本実施例に示す
１枚の基板材２０を２分割して基板１９を得る方法が最
も安価、且つ容易であると考えられる。If the substrate 19 is formed as described above,
As described above, the terminals 25a to 25 are provided on one end of the substrate 19.
d is provided. The first to fourth resistors 26 to 28,
Solder layers 31, 31 are provided at the end of 36 to connect these terminals 25a to 25d.
31 to connect the terminals 25a to 25d to the resistors 26
Connect to the ends of ~ 28,36. However, as described above, the terminal 25d connection portion is provided so that the conductive metal fitting 32 is provided so as to be electrically connected to the first and third resistors 26 and 28, and then the terminal 25d is connected to the resistor 25 and the second resistor 26 and 28. Set up. The terminal 25d and the conductive fitting 32 can be integrated. In the above-described embodiment, an example in which one substrate material 20 is divided into two and the substrate 19 is provided by adhering them to each other has been described. However, two insulating material substrate pieces having the same shape are described. 24a, 24b
After forming the resistive film 21 having the above-mentioned pattern on each surface, the back surfaces of both substrate pieces 24a and 24b are adhered to each other, or the resistive film 21 having the above-mentioned pattern is formed on both surfaces of one insulating substrate 19. You can also However, it is considered that the method of obtaining the substrate 19 by dividing one substrate material 20 into two as shown in this embodiment is the cheapest and easiest.
【００２２】上述の様に構成される抵抗器１８ａを、例
えば自動車用空気調和装置を構成する送風機をなす電動
機に付設し、この電動機の回転速度を段階的に制御する
事で送風量を調整する際の作用は、前述した従来の抵抗
器と同様である。即ち、各端子２５ａ〜２５ｄを前記図
６に示す様なスイッチ１３の各接点１３ａ〜１３ｄに接
続すると共に、これら抵抗器１８ａ、スイッチ１３、電
源１４、送風機４等により、前記図６に示す様な回路を
構成する。より詳しく言えば、端子２５ａを上記電動機
１５に接続すると共に、この端子２５ａをスイッチ１３
の接点１３ａに接続する。又、端子２５ｄを接点１３ｂ
に、端子２５ｂを接点１３ｃに、端子２５ｃを接点１３
ｄに、それぞれ接続する。この様に、本実施例に於ける
抵抗器１８ａを図６に示す回路に組み込めば、送風機４
の回転速度を４段階に亙って変化させる事ができる。The resistor 18a configured as described above is attached to, for example, an electric motor which constitutes a blower which constitutes an air conditioner for an automobile, and the amount of blown air is adjusted by controlling the rotational speed of the electric motor stepwise. The action at this time is similar to that of the conventional resistor described above. That is, the terminals 25a to 25d are connected to the contacts 13a to 13d of the switch 13 as shown in FIG. 6, and the resistors 18a, the switch 13, the power source 14, the blower 4 and the like are used as shown in FIG. A circuit. More specifically, the terminal 25a is connected to the electric motor 15 and the terminal 25a is connected to the switch 13
Connected to the contact 13a. Also, connect the terminal 25d to the contact 13b.
The terminal 25b to the contact 13c and the terminal 25c to the contact 13
d respectively. In this way, if the resistor 18a in this embodiment is incorporated in the circuit shown in FIG.
The rotation speed of can be changed in 4 steps.
【００２３】尚、送風機４の回転速度、即ち電動機１５
の回転速度を何段階に亙って変化させるかは、上記抵抗
皮膜２１のパターンによる。例えば、絶縁部２２ｂと絶
縁部２２ｃとの間部分に、別の絶縁部を形成して接続可
能な端子の数を増やせば、上記回転速度を５段階以上に
変化させられる。或は、複数の抵抗器を用いて回転速度
を細かく調整する事も可能である。尚、電動機１５にロ
ック等の異常があった場合、抵抗器１８ａに過電流が流
れたり、或は抵抗器１８ａ部分に送風されなくなって、
この抵抗器１８ａの温度が上昇する。この様に抵抗器１
８ａの温度が上昇すると、半田層３０、３０が溶融し、
真鍮製端子２９が外れて第一、第二の抵抗体２６、２７
の導通が遮断する。これにより回路に過電流が流れるの
を防止する。即ち、真鍮製端子２９を設けた部分をヒュ
ーズとして機能させている。この様なヒューズとして
は、従来知られた他の構成のものを採用できる。The rotation speed of the blower 4, that is, the electric motor 15
The number of steps in which the rotation speed of the is changed depends on the pattern of the resistance film 21. For example, if another insulating portion is formed between the insulating portion 22b and the insulating portion 22c to increase the number of connectable terminals, the rotation speed can be changed in five steps or more. Alternatively, it is possible to finely adjust the rotation speed by using a plurality of resistors. When the electric motor 15 has an abnormality such as a lock, an overcurrent flows through the resistor 18a, or air is not blown to the resistor 18a.
The temperature of the resistor 18a rises. Like this resistor 1
When the temperature of 8a rises, the solder layers 30, 30 melt,
The brass terminal 29 comes off and the first and second resistors 26, 27 are removed.
Is cut off. This prevents overcurrent from flowing in the circuit. That is, the portion provided with the brass terminal 29 functions as a fuse. As such a fuse, one having a conventionally known structure can be adopted.
【００２４】上述した様な抵抗体１８ａにより電動機１
５の回転速度を４段階に亙って調整し、送風機４の送風
量を調整する際の作用は、次の通りである。先ず、スイ
ッチ１３の接続端子１３ｅを接点１３ａ（Ｈｉ）に接続
すると、上記電導機１５はこの抵抗器１８ａを介さず、
この抵抗器１８ａによる電圧降下がない状態で作動す
る。従って、送風機４は高速回転し、自動車室内に送り
込む送風量が多くなる。上記スイッチ１３の接続端子１
３ｅを、接点１３ｂ（Ｍｈ）に接続すると、図４（Ａ）
に斜格子で示す様に、第一、第二の抵抗体２６、２７
が、電路３２として回路に直列に加わる事になる。従っ
て、これら第一、第二の抵抗体２６、２７によって構成
される電路３３の抵抗値に応じた電圧降下分だけ電動機
１５に印加される電圧が減少し、この電動機１５の回転
速度がその分減少する。この為、送風機４の送風量が減
少する。The electric motor 1 is constructed by the resistor 18a as described above.
The operation of adjusting the rotation speed of 5 in four stages and adjusting the amount of air blower 4 is as follows. First, when the connection terminal 13e of the switch 13 is connected to the contact 13a (Hi), the electric conductor 15 does not go through the resistor 18a,
It operates in the absence of a voltage drop due to this resistor 18a. Therefore, the blower 4 rotates at a high speed, and the amount of air blown into the interior of the automobile increases. Connection terminal 1 of the switch 13
When 3e is connected to the contact 13b (Mh), FIG.
As indicated by a slanted grid, the first and second resistors 26, 27
Will be added to the circuit in series as the electric path 32. Therefore, the voltage applied to the electric motor 15 is reduced by an amount corresponding to the voltage drop corresponding to the resistance value of the electric path 33 formed by the first and second resistors 26 and 27, and the rotation speed of the electric motor 15 is reduced by that amount. Decrease. Therefore, the amount of air blown by the blower 4 is reduced.
【００２５】上記接続端子１３ｅを接点１３ｃに接続し
た場合、図４（Ｂ）に斜格子で示す様に、第一、第二の
抵抗体２６、２７に加え、第三の抵抗体２８が、電路３
４として上記回路に直列に接続される事になる。この場
合、上記接点１３ｂに接続端子１３ｅを接続した際の電
路３３に比べて電路３４の長さが長い為、その抵抗値が
大きくなる。この為、この抵抗値に応じた電圧降下分だ
け、電動機１５に印加される電圧が小さくなり、送風量
が更に減少する。又、接続端子１３ｅを接点１３ｄに接
続した場合、図４（Ｃ）に斜格子で示す様に、上記第一
〜第四の各抵抗体２６〜２８、３６が電路３５として機
能する。この場合、この電路３５の抵抗値は上記第一〜
第四の各抵抗体２６〜２８、３６の各抵抗値の和とな
る。従って、電路３５に於ける抵抗値は、電路３３、３
４に比較して大きくなり、電圧降下が大きくなって送風
量が最も減少する。When the connection terminal 13e is connected to the contact 13c, a third resistor 28 is added in addition to the first and second resistors 26 and 27 as shown by the diagonal grid in FIG. 4 (B). Circuit 3
4 will be connected in series to the above circuit. In this case, since the length of the electric path 34 is longer than that of the electric path 33 when the connection terminal 13e is connected to the contact 13b, the resistance value thereof becomes large. Therefore, the voltage applied to the electric motor 15 is reduced by the amount of the voltage drop corresponding to the resistance value, and the air flow rate is further reduced. When the connection terminal 13e is connected to the contact 13d, the first to fourth resistors 26 to 28 and 36 function as the electric path 35, as shown by the diagonal grid in FIG. In this case, the resistance value of this electric path 35 is from the first to
It is the sum of the resistance values of the fourth resistors 26 to 28 and 36. Therefore, the resistance value in the electric line 35 is
4, the voltage drop becomes large and the amount of blown air decreases most.
【００２６】上述の様に、本実施例の抵抗器１８ａが、
自動車用空気調和装置の送風機等、各種機器に印加する
電圧を制御し、当該機器を所望の状態で作動させる際の
作用は、前述した従来の抵抗器と同様である。特に本実
施例に係る抵抗器１８ａは、絶縁部２２ａ〜２２ｃの面
積が小さく、抵抗皮膜２１部分の面積が大きい。従っ
て、局部的な発熱が生じにくく、抵抗器１８ａ全面の温
度がほぼ均一になる。この結果、この抵抗器１８ａの周
辺に配置されたケーシング１等の部材や機器に対する熱
影響が小さくなる。又、この基板１９表面の温度が不均
一になりにくい為、基板１９に歪が生じる事も防止され
る。As described above, the resistor 18a of this embodiment is
The operation of controlling the voltage applied to various equipment such as the blower of the air conditioner for automobiles and operating the equipment in a desired state is similar to that of the conventional resistor described above. Particularly, in the resistor 18a according to the present embodiment, the areas of the insulating portions 22a to 22c are small and the area of the resistance film 21 is large. Therefore, local heat generation is unlikely to occur, and the temperature of the entire surface of the resistor 18a becomes substantially uniform. As a result, the thermal influence on the members and devices such as the casing 1 arranged around the resistor 18a is reduced. Further, since the temperature of the surface of the substrate 19 is unlikely to be uneven, it is possible to prevent the substrate 19 from being distorted.
【００２７】更に、本発明の抵抗器を製作する場合、抵
抗皮膜２１の面積が増大する事に伴い、従来の抵抗器に
比較して、同一の抵抗値のものを製造するのであればそ
の膜厚を薄くできる。従って、この抵抗皮膜２１の形成
作業に要する時間を短縮できる。加えて、めっき時間を
変える事により、膜厚を容易に所望値にする事が可能に
なる。又、上記絶縁部２２ａ〜２２ｃの面積が小さい
為、この絶縁部２２ａ〜２２ｃをエッチング処理する場
合に、エッチング処理面積を小さくできる。従って、エ
ッチング液の劣化が促進されず、エッチング液の寿命が
向上する。又、第一〜第四の抵抗体２６〜２７、３６の
厚さが小さい為、エッチング時間を短縮できる。これら
の結果、製造時間、製造コストの低減を図れる。Further, when the resistor of the present invention is manufactured, if the area of the resistance film 21 is increased, the film having the same resistance value is manufactured as compared with the conventional resistor, if the film is manufactured. The thickness can be reduced. Therefore, the time required to form the resistance film 21 can be shortened. In addition, by changing the plating time, the film thickness can be easily set to a desired value. Moreover, since the area of the insulating portions 22a to 22c is small, the etching area can be reduced when the insulating portions 22a to 22c are etched. Therefore, deterioration of the etching solution is not promoted and the life of the etching solution is improved. Further, since the thicknesses of the first to fourth resistors 26 to 27, 36 are small, the etching time can be shortened. As a result, manufacturing time and manufacturing cost can be reduced.
【００２８】尚、上述した実施例に於いては、本発明の
抵抗器を自動車用空気調和装置を構成する送風機に付設
し、この送風機の送風量を調整するのに使用する例に就
いて説明したが、本発明の抵抗器はこれに限定される事
はない。他の各種機械装置を構成する電動機等の機器
を、所望の状態に作動させる場合に使用できる。又、抵
抗皮膜２１、絶縁部２２ａ〜２２ｃ、２３のなすパター
ンは図示の実施例に限定されるものではない。スイッチ
の各接点と接続する端子（図示の実施例の場合、端子２
５ａ〜２５ｄ）のうちの１つを選択した場合に、それぞ
れ異なる面積、長さの（それぞれ異なる抵抗値を有す
る）電路が構成されれば良い。In the above-mentioned embodiment, an example in which the resistor of the present invention is attached to a blower which constitutes an automobile air conditioner and is used to adjust the amount of air blown by this blower will be explained. However, the resistor of the present invention is not limited to this. It can be used when a device such as an electric motor constituting various other mechanical devices is operated in a desired state. Further, the pattern formed by the resistance film 21 and the insulating portions 22a to 22c, 23 is not limited to the illustrated embodiment. A terminal connected to each contact of the switch (in the illustrated embodiment, terminal 2
When one of 5a to 25d) is selected, it is sufficient if electric circuits having different areas and lengths (having different resistance values) are configured.
【００２９】[0029]
【発明の効果】本発明の抵抗器は、以上に述べた通り構
成され作用するので、基板表面の温度が均一となり、周
辺部材や周辺機器への好ましくない熱影響、及び基板の
歪を防止できる。又、製造時間、製造に要する処理液等
の量を低減でき、製造が容易になる。従って、耐久性に
優れた抵抗器を、安価に製造できる。Since the resistor of the present invention is constructed and operates as described above, the temperature of the substrate surface becomes uniform, and it is possible to prevent undesired thermal effects on peripheral members and peripheral devices and distortion of the substrate. . Further, the manufacturing time and the amount of the processing liquid required for the manufacturing can be reduced, which facilitates the manufacturing. Therefore, a resistor having excellent durability can be manufactured at low cost.
【図１】本発明の実施例を、基板の表面側から見た状態
で示す正面図。FIG. 1 is a front view showing an embodiment of the present invention as viewed from the front surface side of a substrate.
【図２】同じく基板の裏面側から見た斜視図。FIG. 2 is a perspective view of the same as seen from the back side of the substrate.
【図３】基板材表面に回路パターンを形成した状態を示
す平面図。FIG. 3 is a plan view showing a state in which a circuit pattern is formed on the surface of a substrate material.
【図４】スイッチの切り換えに伴って電路の面積が変化
する状態を、基板の表裏両面を図３に示す状態で表した
図。FIG. 4 is a diagram showing a state in which the area of the electric path changes in accordance with the switching of the switch, in the state shown in FIG.
【図５】本発明が付設される対象の１つである、自動車
用空気調和装置の１例を示す略断面図。FIG. 5 is a schematic cross-sectional view showing an example of an automobile air conditioner, which is one of the objects to which the present invention is attached.
【図６】従来の抵抗器の１例を示す、平面図。FIG. 6 is a plan view showing an example of a conventional resistor.
１ ケーシング ２ａ、２ｂ 空気取り入れ口 ３ａ、３ｂ、３ｃ 空気送り出し口 ４ 送風機 ５ エバポレータ ６ ヒータコア ７ バイパス通路 ８ａ〜８ｅ ドア ９ エアミックスチャンバ １０ 絶縁基板 １１ 抵抗体 １１ａ、１１ｄ 端部 １１ｂ、１１ｃ 延出部 １２ａ〜１２ｄ 端子 １３ スイッチ １３ａ〜１３ｄ 接点 １３ｅ 接続端子 １４ 電源 １５ 電動機 １６、１７ ヒューズ １８、１８ａ 抵抗器 １９ 基板 ２０ 基板材 ２１ 抵抗皮膜 ２２ａ〜２２ｃ 絶縁部 ２３ 絶縁部 ２４ａ、２４ｂ 基板片 ２５ａ〜２５ｄ 端子 ２６ 第一の抵抗体 ２７ 第二の抵抗体 ２８ 第三の抵抗体 ２９ 真鍮製端子 ３０、３１ 半田層 ３２ 導通金具 ３３、３４、３５ 電路 ３６ 第四の抵抗体 ３７ 中心線 1 Casing 2a, 2b Air intake port 3a, 3b, 3c Air outlet port 4 Blower 5 Evaporator 6 Heater core 7 Bypass passage 8a-8e Door 9 Air mix chamber 10 Insulating substrate 11 Resistors 11a, 11d End part 11b, 11c Extension part 12a to 12d terminal 13 switch 13a to 13d contact 13e connection terminal 14 power supply 15 electric motor 16, 17 fuse 18, 18a resistor 19 substrate 20 substrate material 21 resistive film 22a to 22c insulating portion 23 insulating portion 24a, 24b substrate piece 25a to 25d Terminal 26 First resistor 27 Second resistor 28 Third resistor 29 Brass terminals 30, 31 Solder layer 32 Conductive metal fittings 33, 34, 35 Electrical path 36 Fourth resistor 37 Center line
Claims (1)
平板状の基板と、この基板の少なくとも片面の大部分を
覆う抵抗皮膜と、少なくとも一端を上記基板の端縁に通
じさせた、上記抵抗皮膜が存在しない絶縁部と、上記基
板の端縁に設けられてそれぞれが上記抵抗皮膜の端部に
導通する複数の端子とを備えた抵抗器。1. A flat plate-shaped substrate having at least a surface covered with an insulating material, a resistive film covering most of at least one surface of the substrate, and a resistive film having at least one end communicated with an edge of the substrate. And a resistor provided with an insulating portion not present and a plurality of terminals provided on the edge of the substrate and electrically connected to the edge of the resistance film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12101995A JPH08316011A (en) | 1995-05-19 | 1995-05-19 | Resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12101995A JPH08316011A (en) | 1995-05-19 | 1995-05-19 | Resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08316011A true JPH08316011A (en) | 1996-11-29 |
Family
ID=14800800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12101995A Pending JPH08316011A (en) | 1995-05-19 | 1995-05-19 | Resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08316011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019149543A (en) * | 2018-01-23 | 2019-09-05 | バイオトロニック エスエー アンド カンパニー カーゲーＢＩＯＴＲＯＮＩＫ ＳＥ ＆ Ｃｏ． ＫＧ | Resistor especially for medical implant |
-
1995
- 1995-05-19 JP JP12101995A patent/JPH08316011A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019149543A (en) * | 2018-01-23 | 2019-09-05 | バイオトロニック エスエー アンド カンパニー カーゲーＢＩＯＴＲＯＮＩＫ ＳＥ ＆ Ｃｏ． ＫＧ | Resistor especially for medical implant |
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