506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（1 ) (發明所屬之技術領域） 本發明係關於一種形成有用以驅動馬達之驅動電路的 電路基板。 (習知技術） 第2圖係表示工業用縫紉機之縫紉馬達的驅動裝置之 電氣式構成的功能方塊圖。平流電路1係由二極體橋路或 平流電容器等所構成，整流平流商用交流（A C )電源並 產生直流（D C )電源，成爲可供應於驅動電路2。驅動 電路2係具備內設複數交換元件的電晶體模組3 (參照第 3圖）。 驅動電路2係在例如無刷D C馬達的馬達（縫紉馬達 )4之未圖示之各相繞組施加交流電壓俾旋轉驅動馬達4 。在馬達4之旋轉軸，連結有縫紉機5之主軸（均未圖示 )，馬達4係能旋轉驅動其主軸形成在縫紉機5進行縫製 動作。 另一方面，藉由平流電路1所產生之直流電源，形成 也能供應至電源電路6。電源電路6係例如構成作爲交換 電源，降壓藉由平流電路1所產生之直流電源，例如產生 5 V左右之控制用電源供應於控制電路7，同時也產生上 述之交換元件之閘極驅動用電源（例如1 5 V左右）形成 供應於驅動電路2。 控制電路7係以C P U 8爲中心所構成。在該控制電 路7連接有配設操作者進行各種操作輸入所用之操作鍵或 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -4- — — — — — — — — — — — I · I I I I I I I * — — — — — — 1— <請先閱讀背面之注咅？事項再填寫本頁) 506180 A7 B7 __ 五、發明說明（2 ) <請先閱讀背面之注意事項再填寫本頁) 顯示各種資訊之顯示器等的操作屏9，控制馬達4之轉速 所用而使用者以腳操作之踏板電路1 0等。在控制電路7 給與來自操作屏9之操作信號或來自踏板電路1 0之速度 控制信號。又，控制電路7係成爲將顯示控制信號輸出至 操作屏9。 在控制電路7，從內裝於馬達4之位置感測器或編碼 器等給與轉子之旋轉位置檢測信號。同時給與內裝於縫紉 機5之致動開關之導通斷開狀態信號等。控制電路7係依 據此等信號，能將輸出驅動控制信號輸出於驅動電路使馬 達4及縫紉機6之驅動狀態成爲最適當者。506180 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the Invention (1) (Technical Field to Which the Invention belongs) The present invention relates to a circuit board for forming a driving circuit for driving a motor. (Conventional Technology) Fig. 2 is a functional block diagram showing the electrical configuration of a drive device for a sewing motor of an industrial sewing machine. The smoothing circuit 1 is composed of a diode bridge circuit or a smoothing capacitor, etc., and rectifies the advection commercial AC (AC) power supply and generates a DC (DC) power supply, which can be supplied to the driving circuit 2. The drive circuit 2 is a transistor module 3 having a plurality of built-in switching elements (see FIG. 3). The drive circuit 2 applies an AC voltage to each phase winding (not shown) of a motor (sewing motor) 4 of a brushless DC motor to rotate the drive motor 4. A main shaft (none of which is shown) of the sewing machine 5 is connected to a rotating shaft of the motor 4. The motor 4 is capable of rotationally driving the main shaft of the sewing machine 5 to form a sewing operation on the sewing machine 5. On the other hand, the DC power generated by the smoothing circuit 1 can also be supplied to the power circuit 6. The power supply circuit 6 is constituted, for example, as a switching power supply, and the DC power generated by the smoothing circuit 1 is stepped down. For example, a control power supply of about 5 V is supplied to the control circuit 7, and the gate driving of the above-mentioned switching element is also generated. A power source (for example, about 15 V) is supplied to the driving circuit 2. The control circuit 7 is composed of C P U 8 as the center. The control circuit 7 is connected with operation keys used by operators to perform various operation inputs or the paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) -4- — — — — — — — — — — — I · IIIIIII * — — — — — — 1— < Please read the note on the back first? Please fill in this page for more information) 506180 A7 B7 __ V. Description of the invention (2) < Please read the precautions on the back before filling in this page) Operation screen 9 for display of various information, etc., used to control the rotation speed of motor 4 The pedal circuit 10 is operated by feet. In the control circuit 7, an operation signal from the operation panel 9 or a speed control signal from the pedal circuit 10 is given. The control circuit 7 outputs a display control signal to the operation panel 9. In the control circuit 7, a rotational position detection signal is given to the rotor from a position sensor or an encoder incorporated in the motor 4. At the same time, an on-off signal and the like of an actuation switch built into the sewing machine 5 are given. Based on these signals, the control circuit 7 can output an output drive control signal to the drive circuit so that the drive states of the motor 4 and the sewing machine 6 become the most suitable ones.
第3圖及第4圖係表示驅動電路2之更詳細之電氣式 構成的圖式；第5圖係表示電晶體模組3之內部構成的圖 式。在第5圖中，電晶體模組3係也內裝三相橋接連接且 構成反相器之六個 I G B T ( Insulated Gate Bipolor Transistor ;以下簡稱爲電晶體）1 1 U，1 1 V · 1 1 W ，1 1 X，1 1 Y，1 1 Z，及用以將閘電壓施加於各電 晶體1 1 U〜1 1 Z之閘極的四具驅動器1 2 U，1 2 V ，1 2 W，1 2 D。 經濟部智慧財產局員工消費合作社印製 在各電晶體1 1 U〜1 1 Z之集極一射極間，逆並聯 連接有自旋輪二極體1 3U〜1 3 Z。在驅動器1 2U〜 1 2W之輸入端子V i nU〜V i nW與各該輸入側接地 G N D U〜G N D W之間，分別連接有透納二極體 1 4U 1〜1 4W ;而在驅動器1 2D之輸入端子 V i η X〜V i η Z與共通輸入側接地G N D之間，分別 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） TrZ 一 經濟部智慧財產局員工消費合作社印製 506180 A7 B7 五、發明說明（3 ) 連接有透納二極體1 4 D。 由平流電路1所供應之直流電源係供應於電晶體模組 3之正側，負側直流母線3 P，3 N之間，而由電源電路 6所產生之閘驅動用電源係供應於驅動器1 2 U〜1 2 D 。爲了副1應於各電晶體1 1 U〜1 1 Z所配置之___^極體 1 5U〜1 5Z，係防止各電晶體1 1U〜1 1 Z成爲過 熱狀態而被破壞之情形，設成溫度檢測用者。亦即，由於 二極體之順方向電壓係溫度上昇則表示降低之趨勢，因此 捕捉二極體1 5之順方向電壓之變化，將警號（A L Μ ) 輸出至控制電路7側。 在第2圖至第4圖中，在驅動電路2配置有五個連接 器1 6 Α〜1 6 Ε，與平流電路1，電源電路6，控制電 路7係分別經由連接器1 6 A，1 6 B，1 6 C被連接。 在驅動電路2經由連接器1 6 D連接有外設之放電用電阻 1 7 (參照第2圖），與馬達4經由連接器1 6 E被連接 。放電用電阻17係構成下述之過量電壓保護電路之一部 分者。 控制電路7係經由連接器1 6 C輸出對於各電晶體 1 1 U〜1 1 Z的閘控制信號S U〜S Z。此等閘控制信 號S U〜S Z係經由電阻1 8 U〜1 8 Z供應於光耦合器 1 9U〜1 9 Z之輸入側。在光耦合器1 9U〜1 9 Z之 輸入端子間，連接有電阻2 0 U〜2 0 Z，光耦合器 1 9 U〜1 9 Z之輸入側電源P H C，係成爲經由連接器 1 6 C從控制電路7所供應。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) 7〇1 一 !——i—t!——訂---------線_ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 B7 五、發明說明（4 ) 由電源電路6所產生之閘驅動用電源係如上述地經由 連接器1 6 B而被供應於光耦合器1 9 U〜1 9 Z及模組 3。對應於反相器之上臂的光耦合器19U〜19W，電 源V c c U〜V c cW及接地GNDU〜GNDW係分別 成爲獨立，而對應於下臂之光耦合器19X〜19Z，電 源Vc c及接地GND係成爲共通。光耦合器1 9U〜 1 9 Z之輸出端子係分別連接於模組3之輸入端子 V i n U 〜V i η Z。 又在此等光耦合器19U〜19W，19Χ〜19Ζ 之電源-接地之間，分別並聯地連接有電容較大之電容器 (例如鋁電解）2 1 U〜2 1 W，2 1 D及電容較小之電 容器（例如薄膜電容器或陶瓷電容器等）2 2U〜2 2W ，2 2 X〜2 2 Ζ，而在電源一輸出端子之間分別連接有 電阻23U〜23Ζ。 在電源V c c與警報端子A L Μ之間，連接有光耦合 器2 4之輸入側及電阻2 5。該光耦合器2 4之輸出側之 一方（光電晶體集極側）（參照第4圖），係經由電阻 2 6及連接器1 6 C被連接於控制電路7之控制用電源 + V c c ，同時被連接於電阻內裝型電晶體2 7之基極， 另一方（同射極側）係經由連接器1 6 C被連接於控制電 路7之信號用接地S 0 V。又，在此等輸出端子之間連接 有電容器2 8。在控制用電源+ V c c與信號用接地 S 0V之間，連接有電容器2 9。以上述光耦合器2 4爲 中心之電路，係用以將從模組3所輸出之警號A L Μ傳輸 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） --------------------訂---------線 (請先閱讀背面之注意事項再填寫本頁) 506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（5 ) 至控制電路7側之電路。 在第3圖中，驅動電路2係具備以運算放大器3 0爲 中心的過量電壓保護電路6 0。亦即，在電源V c c與接 地G N D之間，連接有電阻3 1 ，3 2，3 3之串聯電路 ，電阻3 2，3 3之共通連接點係被連接於運算放大器 3 0之反向輸入端子。在電阻3 3並聯地連接有電容器 3 4。 在電阻3 1 ，3 2之共通連接點與接地G N D之間， 分別並聯地連接有電容器3 5，及分路調整器3 6，及電 阻37 ’ 38之串聯電路。電阻37，38之共通連接點 係被連接於分別調整器3 6之電壓控制端子。在電源 V c c與接地G N D之間，分別並聯地連接有反方向之二 極體39及電容器40之串聯電路，電容器41 ，42。 二極體3 9及電容器4 0之共通連接點係連接於運算放大 器3 0之非反向輸入端子，而在電容器4 0並聯地連接有 電阻4 3。 如上述，來自平流電路1係經由連接器1 7 6 A有馬 達4之驅動用電源供應於模組3之正側，負側電源端子p ，N。在電源端子P，N之間連接有電容器4 4，同時連 接有反方向之二極體4 5，熔絲4 6及I G B T 4 7之串 聯電路。在二極體4 5經由連接器1 6 D連接有放電用電 阻1 7，又在I G B T 4 7之閘極與射極之間連接有電容 器4 8，電阻4 9之並聯電路。 電源端子P係經由電阻5 0，5 1之串聯電路被連接 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -8 - --------------------訂 ------!線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 B7 五、發明說明（6 ) 於運算放大器3 0之非反向輸入端子。運算放大器3 0之 輸入端子係經由電阻5 2被連接於I G B T 4 7之閘極。 亦即，過量電壓保護電路6 0係以電阻3 1及電阻 3 2，3 3分壓由調整器3 6所輸出之電壓作爲基準電壓 ，並藉運算放大器3 0來比較該基準電壓，與以電阻5 0 ，5 1與電阻4 3分壓馬達4之驅動用電源電壓者。若上 述驅動用電源電壓超過相當於基準電壓之電壓時，則運算 放大器30之輸出信號成爲高位準而將IGBT47成爲 導通狀態。如此，由於被充電於平流電路1內部之平流電 容器的電荷藉由放電用電阻1 7被放電，因此降低驅動用 電源電壓。故從過量電壓可保護模組3之電晶體1 1 U〜 1 1 Z。 在如上述地所構成的縫紉機馬達之驅動裝置中，控制 電路7係藉由位置感測器得到馬達4之轉子的旋轉位置資 訊，藉由該旋轉位置資訊來決定交換控制信號之輸出時機 。控制電路7係依據來自踏板電路1 0之速度控制信號來 決定交換控制信號之輸出位準，而將1 2 0度通電信號作 爲交換控制信號輸出於模組3內部之電晶體1 1 U〜 1 1 Z之閘極。如此，在馬達4之各相繞組施加有交流電 壓使馬達4旋轉，即可使縫紉機5之主軸被旋轉驅動而進 行縫製動作。 縫紉機5之縫製動作中係藉由作業人員操作踏板電路 1 0之踏板（未圖示）來變更縫紉機5之主軸轉速，成爲 能調整縫製速度。所以馬達4係被旋轉驅動成較頻繁地重3 and 4 are diagrams showing a more detailed electrical structure of the drive circuit 2. Fig. 5 is a diagram showing the internal structure of the transistor module 3. In Figure 5, the transistor module 3 also contains six IGBTs (Insulated Gate Bipolor Transistor; hereinafter referred to as a transistor) that are three-phase bridge-connected and constitute an inverter. 1 1 U, 1 1 V · 1 1 W, 1 1 X, 1 1 Y, 1 1 Z, and four drivers 1 2 U, 1 2 V, 1 2 W for applying a gate voltage to the gates of the transistors 1 1 U to 1 1 Z , 1 2 D. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. Between the collector and emitter of each transistor 1 1 U ~ 1 1 Z, a spin wheel diode 1 3U ~ 1 3 Z is connected in antiparallel. Between the input terminals V i nU to V i nW of the driver 1 2U to 12 W and the respective input-side ground GNDU to GNDW, a turn-on diode 1 4U 1 to 1 4W is connected respectively; and between the driver 1 2D Between the input terminals V i η X ~ V i η Z and the common input side ground GND, respectively. This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm). TrZ A staff consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed 506180 A7 B7 V. Description of the invention (3) Connected with a turn-on diode 1 4 D. The DC power supplied by the smoothing circuit 1 is supplied between the positive side and the negative DC bus 3 P, 3 N of the transistor module 3, and the gate driving power generated by the power circuit 6 is supplied to the driver 1 2 U ~ 1 2 D. In order to prevent the secondary 1 from being placed on each transistor 1 1 U ~ 1 1 Z, the _ ^ pole body 1 5U ~ 1 5Z is to prevent each transistor 1 1U ~ 1 1 Z from being overheated and destroyed. Become a temperature detection user. That is, as the voltage in the forward direction of the diode increases as the temperature indicates a decrease, the change in the voltage in the forward direction of the diode 15 is captured and a siren (AlM) is output to the control circuit 7 side. In FIGS. 2 to 4, five connectors 1 6 Α to 1 6 E are arranged in the driving circuit 2, and the smoothing circuit 1, the power supply circuit 6, and the control circuit 7 are connected through the connectors 1 6 A, 1 respectively. 6 B, 1 6 C are connected. A discharge resistor 1 7 (see FIG. 2) is connected to the drive circuit 2 via a connector 16 D, and is connected to the motor 4 via a connector 16 E. The discharge resistor 17 constitutes a part of the excessive voltage protection circuit described below. The control circuit 7 outputs gate control signals S U to S Z for the transistors 1 1 U to 1 1 Z via the connector 16 C. These gate control signals S U to S Z are supplied to the input side of the photocoupler 19 U to 19 Z via resistors 1 U to 18 Z. Between the input terminals of the photocoupler 19U ~ 1 9 Z, a resistor 20 U ~ 2 0 Z is connected, and the input side power PHC of the photo coupler 19 U ~ 1 9 Z is connected through the connector 1 6 C It is supplied from the control circuit 7. This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) 7〇1 I! —— i—t! —— Order --------- line_ (Please read the Please fill in this page again.) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperative, 506180 A7 B7 V. Description of the invention (4) The power source for the gate drive generated by the power circuit 6 is connected via the connector 1 6 B as described above. Supplied in optocoupler 1 U ~ 1 9 Z and module 3. The photocouplers 19U ~ 19W corresponding to the upper arm of the inverter, the power supply V cc U ~ V c cW and the ground GNDU ~ GNDW are respectively independent, and the photocouplers 19X ~ 19Z, the power supply Vc c and The ground GND is common. The output terminals of the photocoupler 19 U to 19 Z are connected to the input terminals V i n U to V i η Z of the module 3, respectively. In addition, between the power supply and the ground of these photocouplers 19U ~ 19W, 19 × ~ 19Z, a capacitor with a relatively large capacitance (such as aluminum electrolytic) is connected in parallel 2 1 U ~ 2 1 W, 2 1 D and Small capacitors (such as film capacitors, ceramic capacitors, etc.) 2 2U ~ 2 2W, 2 2 X ~ 2 2 Z, and resistors 23U ~ 23Z are connected between the output terminals of the power supply. An input side of the photocoupler 24 and a resistor 25 are connected between the power source V c c and the alarm terminal A L M. One of the output sides of the photocoupler 24 (photoconductor collector side) (see FIG. 4) is connected to the control power source + V cc of the control circuit 7 via a resistor 26 and a connector 16C, At the same time, it is connected to the base of the resistor built-in transistor 27, and the other side (same emitter side) is connected to the signal ground S 0 V of the control circuit 7 through the connector 16 C. A capacitor 28 is connected between these output terminals. A capacitor 2 9 is connected between the control power source + V c c and the signal ground S 0V. The circuit centered on the above-mentioned photocoupler 24 is used to transmit the semaphore AL M output from the module 3. The paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ---- ---------------- Order --------- line (please read the notes on the back before filling out this page) 506180 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs System A7 B7 V. Description of the invention (5) The circuit to the control circuit 7 side. In Fig. 3, the drive circuit 2 is provided with an excess voltage protection circuit 60 centered around the operational amplifier 30. That is, a series circuit of resistors 3 1, 3 2, 3 3 is connected between the power source V cc and the ground GND, and the common connection point of the resistors 3 2, 3 3 is connected to the reverse input of the operational amplifier 30. Terminal. A capacitor 3 4 is connected in parallel to the resistor 3 3. A series circuit of a capacitor 3 5, a shunt regulator 36, and a resistor 37 ′ 38 is connected in parallel between the common connection point of the resistors 3 1 and 3 2 and the ground G N D, respectively. The common connection points of the resistors 37 and 38 are connected to the voltage control terminals of the respective regulators 36 and 36. Between the power source V c c and the ground G N D, a series circuit of the opposite-direction diode 39 and the capacitor 40, and the capacitors 41 and 42 are connected in parallel, respectively. The common connection point of the diode 39 and the capacitor 40 is connected to a non-inverting input terminal of the operational amplifier 30, and a resistor 43 is connected to the capacitor 40 in parallel. As described above, the driving power from the smoothing circuit 1 is provided with the motor 4 through the connector 1 7 A to the positive side of the module 3 and the negative-side power terminals p, N. A capacitor 4 4 is connected between the power terminals P and N, and a series circuit of a diode 4 5 in the opposite direction, a fuse 4 6 and an I G B T 4 7 are connected at the same time. A discharge resistor 17 is connected to the diode 4 5 via a connector 16 D, and a parallel circuit of a capacitor 48 and a resistor 49 is connected between the gate and the emitter of I G B T 4 7. The power terminal P is connected via a series circuit of resistors 50, 51. This paper is sized to the Chinese National Standard (CNS) A4 (210 X 297 mm) -8------------- -------- Order ------! Line (please read the precautions on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 506180 A7 B7 V. Description of Invention (6) Non-inverting input terminal of the operational amplifier 30. The input terminal of the operational amplifier 3 0 is connected to the gate of I G B T 4 7 via a resistor 5 2. That is, the excessive voltage protection circuit 60 uses the voltage output from the regulator 36 as the reference voltage by dividing the resistance 3 1 and the resistance 3 2, 3 3, and compares the reference voltage with the operational amplifier 30 to compare the reference voltage with The resistors 50, 51 and resistor 43 divide the voltage of the power supply for driving the motor 4. When the above-mentioned driving power supply voltage exceeds a voltage corresponding to the reference voltage, the output signal of the operational amplifier 30 becomes a high level and the IGBT 47 is turned on. In this way, since the electric charge of the smoothing capacitor charged in the smoothing circuit 1 is discharged through the discharge resistor 17, the driving power supply voltage is reduced. Therefore, the transistor 1 1 U ~ 1 1 Z of the module 3 can be protected from the excessive voltage. In the drive device for the sewing machine motor constructed as described above, the control circuit 7 obtains the rotational position information of the rotor of the motor 4 through the position sensor, and determines the output timing of the exchange control signal based on the rotational position information. The control circuit 7 determines the output level of the exchange control signal according to the speed control signal from the pedal circuit 10, and outputs the 120-degree energization signal as the exchange control signal to the transistor 1 inside the module 3 1 U ~ 1 1 Z gate. In this way, AC voltage is applied to the windings of each phase of the motor 4 to rotate the motor 4, so that the main shaft of the sewing machine 5 can be rotationally driven to perform the sewing operation. During the sewing operation of the sewing machine 5, the spindle speed of the sewing machine 5 is changed by an operator operating a pedal (not shown) of the pedal circuit 10, so that the sewing speed can be adjusted. Therefore, the motor 4 is driven to rotate more frequently.
本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) TgT --------------------訂--------- S (請先閱讀背面之注意事項再填寫本頁) 506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（7 ) 複急加速或急減速。因此在發生依馬達4之再生電壓時， 其電壓被施加於驅動電路2，模組3之正側，負側直流母 線3 P，3 N之間故有電晶體1 1 U〜1 1 Z破壞之虞。 在模組3內，電晶體1 1 U〜1 1 Z之任一成爲過熱 狀態，而二極體1 5 U〜1 5 Z之任一之順方向電壓降低 時，則模組3係從高位準朝低位準變更輸出端子A L Μ。 如此，則光耦合器2 4之輸出側光電晶體成爲導通狀態， 電容器2 8之電荷被放電，電晶體2 7係成爲斷開狀態。 如此，由於控制電路7側之輸入端子A L Μ (被提昇 )係從低位準變化成高位準，因此，控制電路7係檢測模 組3內之電晶體1 1 U〜1 1 Ζ之任一成爲過熱狀態之情 形，進行停止交換控制信號對於驅動電路2之輸出等之處 理。 第6圖係表示將構成驅動電路2之電氣，電子零件實 裝於印刷基板5 2之狀態的平面僵（a )及側面圖（b ) 。此等電氣，電子零件係均爲插入實裝構件。在印刷基板 5 2之背面側實裝有D I P ( Dual In-line Package )型式 之模組3，其他之周邊電路係均實裝於表面側。模組3係 在樹脂製之封裝內部內裝電晶體11U〜11Z等。 亦即，在印刷基板5 2之表面側，作爲主要零件，從 第6圖中左側至右側插入實裝有連接器1 6 C，1 6 B， 電容器29，42，21U〜21W，光耦合器19U〜 1 9 Z，運算放大器3 0，電阻5 1 ’ 5 2，熔絲4 6， 連接器16D，IGBT47，電容器44等。又爲了圖 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- — I-----f——i訂！——線_ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 ___B7 ___；_ 五、發明說明（8 ) 示之方便，在一部分零件上省略附與記號。 (發明欲解決之課題） 如上所述地，驅動電路2係以內裝六個電晶體1 1 u 〜1 1 Z之模組3爲中心所構成，惟隨著該模組3所形成 外圍電路之零件數較多。所以，必須增加印刷基板5 2之 實裝面積，而將驅動電路2構成小型有所限制。 本發明係關於一種鑑於上述事項所創作者，其目的係 在於提供一種可更小型地構成用以驅動馬達之驅動電路的 電路基板。 (解決課題所用之手段） 爲了達成上述目的，申請專利範圍第1項所述之電路 基板，係屬於形成有用以驅動馬達的驅動電路者，其特徵 爲· 實裝有能將交流電壓供應於上述馬達之各相繞組地內 裝有被交接之複數交接元件的模組，及 附帶於該模組所形成的外圍電路； 將上述於上述外圍電路之至少一部分以表面實裝零件 所形成，且實裝於上述模組與基板之間。 亦即，由於內裝複數交換元件之模組係成爲具有較大 之零件尺寸，因此該模組實裝於基板則佔有一定面積。如 此’將外圍電路之至少一部分以表面實裝零件所形成，且 利用形成於模組與基板之間的空間部分而實裝此等表面實 (請先閱讀背面之注意事項再填寫本頁) -------!訂---I —'I---線 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -11 - 經濟部智慧財產局員工消費合作社印製 506180 A7 B7 五、發明說明（9 ) 裝零件，即可縮小基板之面積。 此時，如申請專利範圍第2項所述地，上述模組係具 備基板實裝用之間隔件較理想。亦即，由於藉由間隔件實 裝模組時形成於與基板之間的空間之尺寸經常地成爲一定 ’因此可確實地決定可配置於該空間部分的表面實裝零件 一______—-—^ 之尺寸，且可確實地實行實裝。 又，如申請專利範圍第3項所述地，上述模組係內裝 六個交換元件，藉由此等六個交換元件形成三相反相電路 之型式較理想。亦即，藉由六個交換元件所形成之三相反 相電路係作爲馬達之驅動電路一般以高頻度被利用者。如 此，由於內裝六個交換元件使模組之尺寸成爲某一程度大 小，因此在形成於與基板之間的空間部分可實裝較多之表 面實裝零件。故在使用上述構成之模組之電路基板中，更 有效地可縮小基板面積。 又，如申請專利範圍第4項所述地，兩面實裝零件較 理想，如此地構成，則可更進行基板面積之縮小化。如此 ，如申請專利範圍第2項所述地，模組具備間隔件時，由 於在與模組所實裝之基板面相反側之基板面也可配置插入 實裝零件，因此可更提高實裝形態之自由度。 又，如申請專利範圍第5項所述地，上述外圍電路之 一部分係用以將交換控制信號輸出至上述交換元件的控制 信號輸出電路較理想。 通常，馬達之驅動電源電壓係大都比控制電路之動作 用電源的控制用電源電壓高。所以在將交換控制信號從控 --------------费--------訂----—線# (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -12- 506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（10 ) 制電路輸出至驅動電路時，一般進行經由如光耦合器之控 制信號輸出電路來維持兩者間之電絕緣，俾保護控制電路 側。亦即，由於此種控制信號輸出電路係大都形成作爲外 圍電路，因此以表面實裝構件所構成而實裝在模組與基板 之間，則確實地可縮小基板面積。 又，如申請專利範圍第6項所述地，上述馬達係旋轉 驅動縫紉機之主軸的縫紉馬達較理想。亦即，因縫紉馬達 係較高電壓，大電流地被驅動，因此對應於此，模組也大 都使用尺寸較大者。故如此地構成，可有效地縮小縫紉馬 達之驅動電路所形成的基板面積。 又，此時，如申請專利範圍第7項所述地，上述外圍 電路之一部分係檢測供應於上述模組的驅動用電源之電壓 ，該電源電壓超過所定位準時用以進行過量電壓保護動作 的保護電路較理想。亦即，因縫紉馬達係其動作上頻繁地 進行急加速或急減速，因此藉由馬達發生較高位準之再生 電壓。故爲了將驅動電路由過量電壓加以保護，作爲外圍 電路設置保護電路較理想，若將保護電路以表面實裝零件 所構成而實裝在模組與基板之間，則與申請專利範圍第5 項同樣地，可確實地縮小基板面積。 (發明之實施形態） 以下，參照第1圖說明本發明之一實施例。第1圖係 表示對於圖示於第2圖至第5圖之構成的馬達4之驅動電 路1局部變更各電氣，電子零件之實裝形式所形成之電路 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -13- --------------------訂---------線#_ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 B7 _ 五、發明說明（11 ) 基板的俯視圖（a )及側面圖（b )。亦即，印刷基板 6 1之背面，與印刷基板5 2同樣地實裝有模組3。又， 連接器1 6A〜1 6E，鋁電解電容器2 1U〜2 1W等 ，光耦合器3 0，熔絲4 6及I G B T 4 7之零件’係插 入實裝於表面側。 另一方面，對應於光耦合器（控制信號輸出電路，外 圍電路）19U〜19Z的光耦合器62U〜62Z係表 面實裝零件，此等係實裝於模組3與印刷基板6 1之背面 之間。亦即，由於模組3係在其四隅部分具備基板實裝用 之間隔件3 a ，因此在被實裝時，有一定空間形成於與印 刷基板6 1之間。利用該空間部分，配置表面實裝零件之 光耦合器62U〜62Z。 又，其他之電容器2 2U〜2 2 Z或電阻2 3U〜 23Z，或構成過量電壓保護電路（外圍電路）60之電 阻31，32，33或電容器34，40，二極體39等 零件也被置換成晶片零件（表面實裝零件）6 3，而此等 晶片零件6 3也被實裝於模組3與印刷基板6 1之背面之 間。又，模組3係在封裝3表面側〔在第1 ( b )圖中之 下方側〕具備未圖示之金屬製散熱板，在裝配該放熱板時 接觸於框體即可進行散熱。 亦即，在形成於模組3與印刷基板6 1之間的空間部 分藉配置表面實裝零件之光耦合器6 2 U〜6 2 U或其他 之晶片零件6 3，印刷基板6 1係成爲比模組3之外形稍 大程度之尺寸，而比印刷基板5 2之尺寸大幅地縮小並被 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐Ί _14 : ——.—--------訂——線 (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 ___ B7 五、發明說明（12 ) 小型化。又，爲了方便，對於一部分之零件省略圖示。 如上所述地依照本實施例，在內裝六個電晶體（交換 元件）1 1 U〜1 1 Z而形成有三相反相電路之模組3， 及印刷基板6 1之背面之間，表面實裝光耦合器6 2 U〜 6 2 Z或構成過量電壓保護電路6 0等之晶片零件6 3， 而在印刷基板6 1之表面側插入實裝運算放大器3 0，熔 絲4 6及I G B T 4 7等之零件。 亦即，由於內裝六個電晶體1 1 U〜1 1 Z的模組3 之尺寸係成爲某一程度之大小，因此在實裝時，在印刷基 板6 1上佔有一定面積，而在與該基板6 1之間形成有一 定空間。因此，在該空間部分，將光耦合器6 2 U〜 6 2 Z或過量電壓保護電路6 0之一部分作爲表面實裝零 件實裝於模組3與基板6 1之間，也可將基板6 1之面積 比習知者縮小。 又，在模組3具備間隔件3 a ，由於實裝模組3時形 成於與基板6 1之間的空間尺寸經常成爲一定，因此可確 實地決定可配置於該空間部分的表面實裝零件之尺寸，並 可確實地進行實裝。由於在基板6 1兩面實裝電氣，電子 零件，因此可更縮小基板6 1之面積。此外，藉模組3具 備間隔件3 a ，也成爲在與實裝有模組3之基板面相反側 之基板面可配置插入實裝零件，而可提高實裝形態之自由 度。 由於馬達4之驅動電源電壓係比控制電路7之動作用 電源的控制用電源電壓高，因此爲了由高電壓保護控制電 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） _ 15 _ —丨^—-----------—訂---------線 ^11 (請先閱讀背面之注意事項再填寫本頁) 506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（13 ) 路7通常需要光耦合器6 2U〜6 2 Z。因此，將光耦合 器6 2U〜6 2 Z作爲表面實裝零件而實裝在模組3與基 板6 1之間，即可確實地縮小基板面積。 又依照本實施例，將馬達4作爲旋轉驅動工業用之縫 紉機5之主軸的縫紉馬達。亦即，由於此種縫紉馬達係以 較高電壓，大電流來驅動，對應於此，也使用模組3之尺 寸較大者。因此’可有效果地縮小縫紉馬達之驅動電路2 所形成的基板6 1之面積。 由於縫紉馬達係其動作上頻繁地進行急加速或急減速 ’因此藉由馬達4可發生較高位準之再生電壓。故爲了從 過量電壓保護驅動電路2而設置過量電壓保護電路6 0較 理想’若以表面實裝零件構成保護電路6 0並實裝於模組 3與基板6 1之間，即可確實地縮小基板面積。 本發明係並不被限定於上述所述且記載於圖式之實施 例者，也可做如下之變形或擴大。 間隔件3 a係視需要設置就可以。在未設置間隔件時 ’例如藉由模組之領前尺寸與實裝穴徑之尺寸相差，在實 裝模組時在與基板之間形成有空間就可以。 交換元件係並不被限定於I GBY1 1U〜1 1 Z， 而是例如功率MO S F E T等也可以。 內裝於模組3之過熱檢測用之二極體1 5 U〜1 5 Z 等之電路’或是爲了將檢測信號傳送至控制電路7的光耦 合器2 4等之電路係視需要設置就可以。 模組3係並不被限定於內裝六個IGBT11U〜 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -16- -----------------訂 ------1 4# (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 506180 A7 ____ B7___ 五、發明說明（14 ) 1 1 z並形成有三相反相電路者，而內裝複數交換元件者 也可以。 並不被限定於進行兩面實裝之電路基板，而適用於單 面實裝之電路基板也可以。 控制信號輸出電路係並不被限定於光耦合器6 2 U〜 6 0 Z，例如驅動器等也可以。 馬達4係並不被限定於無刷D C馬達，例如感應馬達 等也可以，又並不被限定於旋轉驅動縫紉馬達者。 過量電壓保護電路6 0視需要設置也可以。 (發明之效果） 由於本發明係如上所述，因此具有以下之效果。 依照申請專利範圍第1項所述之電路基板，由於將外 圍電路之至少一部分以表面實裝零件所形成，且利用形成 於內裝複數交換元件之模組與基板之間的空間部分而實裝 此等表面實裝零件，因此可縮小基板之面積。 依照申請專利範圍第2項所述之電路基板，由於在模 組具備基板實裝用間隔件，因此在實裝模組時，形成於與 基板之間的空間之尺寸經常地成爲一定，可確實地決定可 配置於該空間部分的表面實裝零件之尺寸，且可確實地實 行實裝。 依照申請專利範圍第3項所述之電路基板，由將將模 組作爲內裝六個交換元件且形成有三相反相電路之型式， 因此作爲馬達之驅動電路一般以高頻度被利用，適用於模 表紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐) TTjl ----------Φ--------^---------i_ (請先閱讀背面之注意事項再填寫本頁) 506180 經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明（15 ) 組之尺寸成爲某一程度大小者，在形成於與基板之間的空 間部分可實裝較多之表面實裝零件。故更有效地可縮小基 板面積。 依照申請專利範圍第4項所述之電路基板，由於兩面 實裝零件，因此可更進行基板面積之縮小化。如此’如申 請專利範圍第2項所述地，模組具備間隔件時，在與模組 所實裝之基板面相反側之基板面也可配置插入實裝零件， 可更提高實裝形態之自由度。 依照申請專利範圍第5項之電路基板，由於將外圍電 路之一部分作爲用以將由外部控制電路所供應之交換控制 信號輸出至交換元件的控制信號輸出電路，因此例如爲了 從馬達之驅動電源電壓來保護控制電路側而以表面實裝構 件構成一般所用之光耦合器等並實裝在模組與基板之間， 則確實地可縮小基板面積。 依照申請專利範圍第6項所述之電路基板，由於將馬 達作爲旋轉驅動縫紉機之主軸的縫紉馬達，因此適用於以 較高電壓，大電流被驅動之縫紉馬達，因此可有效地縮小 該縫紉馬達之驅動電路所形成的基板面積。 依照申請專利範圍第7項所述之電路基板，由於將外 圍電路之一部分作爲檢測供應於模組的驅動用電源之電壓 以進行過量電壓保護動作的保護電路，因此藉其動作上頻 繁地進行急加速或急減速的縫紉馬達所發生的再生電路， 將爲了保護驅動電路所必需之保護電路實裝於表面安裝零 件所構成之模組與基板之間，則可確實地縮小基板面積。 -------.#.!——訂 -------i· (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -18 - 506180 A7 B7 五、發明說明（16 ) (圖式之簡單說明） 第1圖係表示本發明之一實施例，將構成馬達之驅動 電路之各電氣，電子零件實裝於電路基板之狀態的俯視圖 (a )及側視圖（b )。 第2圖係表示驅動工業用縫紉機之縫紉馬達的驅動裝 置之電氣式構成的功能方塊圖。 第3圖係表示驅動電路之更詳細電氣式構成的圖式（ 其一）。 第4圖係表示驅動電路之更詳細電氣式構成的圖式（ 其二）。 第5圖係表示電晶體模組之內部構成的圖式。 第6圖係表示習知技術之第1圖相當圖。 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -19 - -----------------—訂------—線 (請先閱讀背面之注咅？事項再填寫本頁) 件制 電號零 隔控 刷信裝 間： 印制實 7 ••控 面 a } 1 ，^ 3 , 件 6 路 { 機Μ 電件 ， 紉 Μ ， 圍零 模：τ(路 C 晶 體 一〇 β 電器 ： 晶 G 圍合 3 電，I 外耦 6 ·· > : C 光 3達 Ζ 路：’ 馬 1 電 Ζ } ， 紉 1 護 2 件 路縫 ~ 保 6 零。 }電丨U壓 ~ 裝} 明動達 1 電 U 實路 說驅馬 1 量 2 面電 之 ··： 過 6 表圍 號 2 4 ，： ，外 記路 ο ’ 出， { ，電 6 路輸件 經濟部智慧財產局員工消費合作社印製This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) TgT -------------------- Order --------- S (Please read the notes on the back before filling out this page) 506180 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (7) Acceleration or deceleration. Therefore, when the regeneration voltage according to the motor 4 occurs, its voltage is applied to the driving circuit 2, the positive side of the module 3, and the negative side DC bus 3 P, 3 N. Therefore, the transistor 1 1 U ~ 1 1 Z is destroyed. Fear. In module 3, if any of the transistors 1 1 U to 1 1 Z becomes overheated, and the voltage in the forward direction of any of the diodes 1 5 U to 1 5 Z decreases, then module 3 is from the high position. Change the output terminal AL LM towards the lower level. In this way, the output-side phototransistor of the photocoupler 24 is turned on, the charge of the capacitor 28 is discharged, and the transistor 27 is turned off. In this way, since the input terminal ALM (lifted) on the side of the control circuit 7 changes from a low level to a high level, the control circuit 7 is any one of the transistors 1 1 U to 1 1 Z in the detection module 3. In the case of an overheating state, processing for stopping the exchange of control signals with respect to the output of the drive circuit 2 is performed. Fig. 6 is a plan view (a) and a side view (b) showing a state in which electrical and electronic components constituting the drive circuit 2 are mounted on a printed circuit board 52. These electrical and electronic parts are plug-in components. A D I P (Dual In-line Package) type module 3 is mounted on the back side of the printed circuit board 52, and other peripheral circuits are mounted on the front side. Module 3 is a 11U ~ 11Z transistor built into a resin package. That is, on the surface side of the printed circuit board 52, as the main parts, connectors 16C, 16B, capacitors 29, 42, 21U to 21W, and photocouplers are inserted from the left to the right in FIG. 6. 19U ~ 1 9 Z, operational amplifier 3 0, resistor 5 1 ′ 5 2, fuse 4 6, connector 16D, IGBT47, capacitor 44 and so on. For the purpose of drawing, the paper size applies the Chinese National Standard (CNS) A4 (210 X 297 mm) -10- — I ----- f——i order! ——Line _ (Please read the notes on the back before filling this page) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 506180 A7 ___B7 ___; _5. The description of the invention (8) is convenient, and some parts are omitted. With marker. (Problems to be Solved by the Invention) As described above, the driving circuit 2 is composed of the module 3 with six transistors 1 1 u to 1 1 Z as its center. The number of parts is large. Therefore, it is necessary to increase the mounting area of the printed circuit board 52, and the size of the drive circuit 2 is limited. The present invention is directed to a creator in view of the foregoing matters, and an object of the present invention is to provide a circuit board which can further constitute a driving circuit for driving a motor. (Means used to solve the problem) In order to achieve the above-mentioned object, the circuit board described in the first item of the patent application belongs to a driver circuit that is used to drive a motor. The modules of the motor are provided with a plurality of transferred components in the windings of each phase of the motor, and the peripheral circuits formed by the modules are attached; at least a part of the above peripheral circuits is formed by surface-mounted components, and Installed between the module and the substrate. That is, since the module containing the plurality of exchange elements has a larger part size, the module is mounted on the substrate and occupies a certain area. In this way, at least a part of the peripheral circuit is formed by surface-mounted components, and the surface is formed by using the space formed between the module and the substrate (please read the precautions on the back before filling this page)- ------! Order --- I-'I --- The paper size of the paper is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) -11-Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs and Consumer Cooperatives System 506180 A7 B7 V. Description of the invention (9) By mounting parts, the area of the substrate can be reduced. At this time, as described in item 2 of the scope of patent application, the above module is ideally provided with a spacer for substrate mounting. That is, since the size of the space formed between the substrate and the substrate is often constant when the module is mounted by the spacer, the surface-mounted components that can be disposed in the space portion can be determined with certainty. ^ Size, and can be reliably installed. In addition, as described in item 3 of the scope of patent application, the above-mentioned module is equipped with six switching elements, and it is desirable to form a three-phase inverter circuit by waiting for the six switching elements. That is, the three opposite-phase circuits formed by the six exchange elements are generally used as the drive circuits of the motor at a high frequency. In this way, since the size of the module is increased to some extent by the built-in six exchange elements, a large number of surface-mounted components can be mounted in the space formed between the module and the substrate. Therefore, in the circuit board using the module having the above configuration, the board area can be reduced more effectively. In addition, as described in item 4 of the scope of patent application, two-sided mounted parts are ideal. With this structure, the area of the substrate can be further reduced. In this way, as described in item 2 of the scope of the patent application, when the module is provided with a spacer, since the component can be inserted on the substrate surface opposite to the substrate surface on which the module is mounted, the mounting can be further improved. Freedom of form. As described in item 5 of the scope of patent application, a part of the peripheral circuit is preferably a control signal output circuit for outputting a switching control signal to the switching element. Generally, the voltage of the driving power source of the motor is higher than the control power source voltage of the power source for controlling the operation of the circuit. Therefore, the exchange of control signals from the control -------------- fee -------- order ------ line # (Please read the precautions on the back before filling in this Page) This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm) -12- 506180 Printed by A7 B7, Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs 5. Description of the invention (10) Output circuit to drive circuit At this time, it is generally performed to maintain the electrical insulation between the two via a control signal output circuit such as a photocoupler to protect the control circuit side. That is, since most of such control signal output circuits are formed as peripheral circuits, a surface mounting member is mounted between the module and the substrate, and the substrate area can be reliably reduced. As described in item 6 of the scope of patent application, the motor is preferably a sewing motor that rotationally drives the main shaft of the sewing machine. That is, because the sewing motor is driven by a relatively high voltage, it is driven with a large current. Therefore, in response to this, the larger modules are also used. Therefore, the structure can effectively reduce the area of the substrate formed by the drive circuit of the sewing motor. At this time, as described in item 7 of the scope of the patent application, a part of the peripheral circuit is to detect the voltage of the driving power supply supplied to the module, and the power supply voltage exceeds the positioning on time to perform an excessive voltage protection operation. The protection circuit is ideal. That is, since the sewing motor frequently accelerates or decelerates frequently during its operation, a higher level of regeneration voltage is generated by the motor. Therefore, in order to protect the driving circuit from excessive voltage, it is ideal to provide a protection circuit as a peripheral circuit. If the protection circuit is composed of surface-mounted components and is mounted between the module and the substrate, it is the same as the fifth item in the scope of patent application. Similarly, the substrate area can be reliably reduced. (Embodiment of Invention) An embodiment of the present invention will be described below with reference to FIG. Figure 1 shows the circuit formed by partially changing the electrical and electronic components of the drive circuit 1 of the motor 4 shown in Figures 2 to 5 in the form of the mounting form. The paper dimensions apply to the Chinese National Standard (CNS). A4 specification (210 X 297 mm) -13- -------------------- Order --------- line #_ (Please read the back first Please pay attention to this page, please fill in this page) Printed by 506180 A7 B7, Employee Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs _ V. Description of Invention (11) Top view (a) and side view (b) of the substrate. In other words, the module 3 is mounted on the rear surface of the printed circuit board 61 in the same manner as the printed circuit board 52. Connectors 16A to 16E, aluminum electrolytic capacitors 2 1U to 2 1W, etc., parts 'optocoupler 30, fuse 46, and I G B T 4 7' are inserted and mounted on the surface side. On the other hand, photocouplers 62U to 62Z corresponding to the photocouplers (control signal output circuits, peripheral circuits) 19U to 19Z are surface-mounted components, which are mounted on the back of the module 3 and the printed circuit board 61 between. That is, since the module 3 is provided with a spacer 3a for substrate mounting on its four sides, a certain space is formed between the module 3 and the printing substrate 61 when it is mounted. Using this space portion, photocouplers 62U to 62Z of surface-mounted components are arranged. In addition, other capacitors 2 2U to 2 2 Z or resistors 2 3 U to 23 Z, or resistors 31, 32, and 33, capacitors 34, 40, and diode 39 constituting an excessive voltage protection circuit (peripheral circuit) 60 are also used. It is replaced with a wafer part (surface mounting part) 63, and these wafer parts 63 are also mounted between the module 3 and the back surface of the printed circuit board 61. In addition, the module 3 is provided with a metal heat sink (not shown) on the surface side of the package 3 (lower side in FIG. 1 (b)), and the heat can be dissipated by contacting the housing when assembling the heat sink. That is, in the space portion formed between the module 3 and the printed circuit board 61, the printed circuit board 6 1 becomes a photocoupler 6 2 U to 6 2 U or other wafer parts 6 3 by arranging surface-mounted components. The size is slightly larger than the external shape of the module 3, and it is greatly reduced than the size of the printed substrate 5 2 and is adapted to the Chinese National Standard (CNS) A4 specification (210 X 297 mmΊ _14 by this paper size _14: ——.— -------- Order——line (please read the precautions on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 506180 A7 ___ B7 V. Invention Description (12) Miniaturization. For the sake of convenience, some parts are not shown. According to the present embodiment, as described above, a module 3 having a three-phase inverter circuit is formed by incorporating six transistors (exchange elements) 1 1 U ~ 1 1 Z, And the back surface of the printed circuit board 61, a photocoupler 6 2 U to 6 2 Z or a wafer component 6 3 constituting an excessive voltage protection circuit 60, etc. are mounted on the surface, and the mounting is inserted on the surface side of the printed circuit board 61 Components of operational amplifier 30, fuse 4 6 and IGBT 4 7 etc. That is, due to internal The size of the module 3 with six transistors 1 1 U to 1 1 Z is a certain size. Therefore, when it is mounted, it occupies a certain area on the printed circuit board 6 1 and There is a certain space between them. Therefore, in this space, a part of the photocoupler 6 2 U ~ 6 2 Z or the excessive voltage protection circuit 60 is mounted as a surface-mounted component between the module 3 and the substrate 61. It is also possible to reduce the area of the substrate 61 compared to a known person. In addition, the module 3 is provided with a spacer 3 a. Since the size of the space formed between the module 3 and the substrate 61 is fixed when the module 3 is mounted, The size of the surface-mounted components that can be placed in this space can be determined and mounted reliably. Since electrical and electronic components are mounted on both sides of the substrate 61, the area of the substrate 61 can be further reduced. Since the module 3 is provided with a spacer 3 a, it can also be used to insert a mounted component on the substrate surface opposite to the substrate surface on which the module 3 is mounted, thereby improving the freedom of the mounting form. The voltage of the driving power supply is lower than that of the power supply for the operation of the control circuit 7. The control power supply voltage is high, so in order to control the paper size by high-voltage protection, the paper size of the China National Standard (CNS) A4 (210 X 297 mm) is applicable. _ 15 _ — 丨 ^ —---------- --- Order --------- line ^ 11 (Please read the notes on the back before filling out this page) 506180 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description (13) Road 7 Optocouplers 6 2U ~ 6 2 Z are usually required. Therefore, if the photocouplers 6 2U ~ 6 2 Z are mounted as surface-mounted components between the module 3 and the substrate 61, the substrate area can be reliably reduced. . According to this embodiment, the motor 4 is used as a sewing motor for rotatingly driving the main shaft of the industrial sewing machine 5. That is, since such a sewing motor is driven with a higher voltage and a higher current, a larger size of the module 3 is also used accordingly. Therefore, it is possible to effectively reduce the area of the substrate 61 formed by the drive circuit 2 of the sewing motor. Since the sewing motor frequently undergoes rapid acceleration or rapid deceleration in its operation, a higher level of regenerative voltage can be generated by the motor 4. Therefore, in order to protect the driving circuit 2 from excessive voltage, it is desirable to provide an excessive voltage protection circuit 60. 'If the protective circuit 60 is formed by surface-mounted components and is installed between the module 3 and the substrate 61, it can be reliably reduced. Substrate area. The present invention is not limited to the embodiments described above and described in the drawings, and may be modified or expanded as follows. The spacer 3a can be set as required. When the spacer is not provided, for example, the space between the front of the module and the size of the mounting hole diameter is different, and a space is formed between the module and the substrate when the module is mounted. The switching element system is not limited to I GBY1 1U to 1 1 Z, but may be, for example, power MO S F E T or the like. Circuits such as diodes 1 5 U to 1 5 Z built into the module 3 for overheating detection, or circuits such as photo couplers 2 4 for transmitting detection signals to the control circuit 7 can. Module 3 series is not limited to the installation of six IGBT11U ~ This paper size is applicable to China National Standard (CNS) A4 specification (210 X 297 mm) -16- ------------- ---- Order ------ 1 4 # (Please read the notes on the back before filling this page) Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 506180 A7 ____ B7___ V. Description of Invention (14) 1 1 z and a three-phase inverter circuit are formed, and a built-in complex exchange element may be used. The circuit board is not limited to a two-sided mounting circuit board, but a circuit board suitable for one-side mounting may be used. The control signal output circuit system is not limited to the photocoupler 6 2 U to 6 0 Z, and may be, for example, a driver or the like. The motor 4 is not limited to a brushless DC motor, for example, an induction motor may be used, and it is not limited to a person who drives a sewing motor by rotation. The over-voltage protection circuit 60 may be set as required. (Effects of the Invention) Since the present invention is as described above, it has the following effects. According to the circuit board described in item 1 of the scope of the patent application, at least a part of the peripheral circuit is formed by surface-mounted components, and the space is formed by using a space between the module and the substrate that contains a plurality of exchange elements. Since these components are mounted on the surface, the area of the substrate can be reduced. According to the circuit board described in item 2 of the scope of the patent application, since the module includes a spacer for mounting the substrate, the size of the space formed between the module and the substrate is often constant when the module is mounted. The size of the surface-mounted components that can be placed in the space portion is determined by ground, and the mounting can be surely performed. According to the circuit board described in item 3 of the scope of the patent application, the module is a type with six exchange elements inside and a three-phase inverting circuit formed. Therefore, the drive circuit of a motor is generally used at a high frequency, which is suitable for the module. The paper size of the table applies to China National Standard (CNS) A4 (210 X 297 mm) TTjl ---------- Φ -------- ^ --------- i_ (Please read the precautions on the back before filling this page) 506180 Printed by the Consumers ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (15) The size of the group becomes a certain size, formed between the substrate and the substrate The space part can be installed with more surface-mounted components. Therefore, the area of the substrate can be reduced more effectively. According to the circuit board described in item 4 of the scope of patent application, since the components are mounted on both sides, the area of the board can be further reduced. In this way, as described in item 2 of the scope of the patent application, when the module is provided with a spacer, it is also possible to insert a mounted component on the substrate surface opposite to the substrate surface on which the module is mounted, which can further improve the mounting form. Degrees of freedom. According to the circuit board according to item 5 of the scope of patent application, since a part of the peripheral circuit is used as a control signal output circuit for outputting the exchange control signal supplied from the external control circuit to the exchange element, for example, to Protecting the control circuit side and forming a generally used photocoupler or the like with a surface mounting member and mounting it between the module and the substrate can reliably reduce the area of the substrate. According to the circuit board described in item 6 of the scope of the patent application, since the motor is used as the sewing motor for the spindle of the rotary drive sewing machine, it is suitable for sewing motors driven at high voltage and high current, so the sewing motor can be effectively reduced Area of the substrate formed by the driving circuit. According to the circuit board described in item 7 of the scope of the patent application, since a part of the peripheral circuit is used as a protection circuit that detects the voltage of the driving power supply supplied to the module to perform an excessive voltage protection operation, frequent emergency operations are performed by its operation Regenerative circuits generated by an acceleration or deceleration sewing motor are mounted between a module composed of surface-mounted components and a substrate in order to protect the driving circuit, thereby reliably reducing the area of the substrate. -------. #.! —— Order ------- i · (Please read the precautions on the back before filling this page) This paper size applies to China National Standard (CNS) A4 Specification (210 X 297 mm) -18-506180 A7 B7 V. Description of the invention (16) (Simplified description of the diagram) The first diagram is an embodiment of the present invention, and the electric and electronic parts constituting the driving circuit of the motor are implemented. Top view (a) and side view (b) of the state mounted on a circuit board. Fig. 2 is a functional block diagram showing an electrical configuration of a driving device for driving a sewing motor of an industrial sewing machine. FIG. 3 is a diagram (part one) showing a more detailed electrical configuration of the driving circuit. FIG. 4 is a diagram (No. 2) showing a more detailed electrical configuration of the driving circuit. Fig. 5 is a diagram showing the internal structure of the transistor module. Fig. 6 is a diagram corresponding to Fig. 1 of the conventional technique. This paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) -19------------------— Order -------- Line ( Please read the note on the back first? Matters and then fill out this page) Zero-block control letter box with electric system number: Printed 7 •• Control surface a} 1, ^ 3, 6 pieces {Machine M electrical parts, Thre M, Circumference mode: τ (Road C, Crystal 10β Appliance: Crystal G surrounds 3 electricity, I external decoupling 6 ·· >: C light 3 up to Z Road: 'Ma 1 electricity Z}, Thor 1 protection 2 pieces of road seam ~ guarantee 6 zero.} Electric 丨 U pressure ~ equipment} Mingdongda 1 Electric U said the road to drive the horse 1 Amount 2 surface electricity ·: Pass 6 table number 2 4 ： ， Waiji Road ο 'Out, {Printed by the Consumers' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the Ministry of Economic Affairs