具体实施方式Detailed ways

以下，参照附图说明本发明的电控节气门装置500的实施方式。在本发明的实施例中，电控节气门装置500电控制车载用发动机的吸入空气量。此外，电控节气门装置500还可以应用于用于控制燃料电池的氢浓度和空气量的负压控制节气门阀。Hereinafter, an embodiment of an electronically controlled throttle device 500 according to the present invention will be described with reference to the drawings. In the embodiment of the present invention, the electronically controlled throttle device 500 electrically controls the intake air amount of the vehicle-mounted engine. In addition, the electronically controlled throttle device 500 can also be applied to a negative pressure control throttle valve for controlling the hydrogen concentration and air volume of a fuel cell.

[实施例1]图1是本发明的实施例1的电控节气门装置500的截面图。Embodiment 1 FIG. 1 is a sectional view of an electronically controlled throttle device 500 according to Embodiment 1 of the present invention.

如图1所示，主体1具有圆形截面的吸气流路2。节气门轴3贯通吸气流路2而配置。另外，节气门轴3由两个轴承4夹持吸气流路而被支承。两个轴承4被压入至设置在主体1上的孔中。因此，节气门轴3相对于主体1可旋转地被支承。As shown in FIG. 1 , the main body 1 has an inhalation flow path 2 with a circular cross section. The throttle shaft 3 is arranged to pass through the intake flow path 2 . In addition, the throttle shaft 3 is supported by two bearings 4 sandwiching the intake flow path. Two bearings 4 are pressed into holes provided on the body 1 . Therefore, the throttle shaft 3 is rotatably supported with respect to the main body 1 .

节气门阀5配置在主体1的吸气流路2内，由金属制的圆板构成。节气门阀5通过两个螺钉6固定在节气门轴3上。节气门阀5在吸气流路2内随着节气门轴3的转动而开闭吸气流路2。当节气门轴3旋转时，节气门阀5旋转，结果，吸气流路2的开口面积变化，控制向发动机的吸入空气流量。The throttle valve 5 is arranged in the intake flow path 2 of the main body 1 and is formed of a metal disc. The throttle valve 5 is fixed on the throttle shaft 3 by two screws 6 . The throttle valve 5 opens and closes the intake flow path 2 in accordance with the rotation of the throttle shaft 3 in the intake flow path 2 . When the throttle shaft 3 rotates, the throttle valve 5 rotates, and as a result, the opening area of the intake air passage 2 changes to control the intake air flow rate to the engine.

在主体1的齿轮收纳部侧的表面上设置有用于安装盖组件100的突状部1A。A protruding portion 1A for attaching the cover assembly 100 is provided on the surface of the main body 1 on the side of the gear housing portion.

图2是本发明的实施例1的盖模块100的截面图。FIG. 2 is a cross-sectional view of the cover module 100 according to Embodiment 1 of the present invention.

如图2所示，盖组件100在齿轮盖14的外壁侧具备驱动用的电机200，在齿轮盖14的内壁侧具备驱动电机200的逆变电路基板18和用于检测节气门阀5的开度的节气门传感器20。逆变电路基板18是具有驱动电机200的逆变电路的电路基板。As shown in FIG. 2 , the cover assembly 100 is provided with a motor 200 for driving on the outer wall side of the gear cover 14, and is provided with an inverter circuit board 18 for driving the motor 200 and a circuit board 18 for detecting the opening degree of the throttle valve 5 on the inner wall side of the gear cover 14. The throttle sensor 20. The inverter circuit board 18 is a circuit board having an inverter circuit for driving the motor 200 .

齿轮盖14是树脂成型品，金属制的连接器端子15及金属制的插入式螺母16一体成型。另外，在齿轮盖14的外壁侧，连接器17的形状与齿轮盖14一体地形成，在其内侧，连接器端子15的一个端部突出(图6)，嵌合来自ECU(Engine Control Unit)等的布线的连接器。The gear cover 14 is a resin molded product, and the metal connector terminal 15 and the metal insert nut 16 are integrally formed. In addition, on the outer wall side of the gear cover 14, the shape of the connector 17 is integrally formed with the gear cover 14, and on the inner side, one end of the connector terminal 15 protrudes (FIG. 6), and is fitted with a connector from the ECU (Engine Control Unit). and other wiring connectors.

电机200的电机壳体23为树脂成型品或金属性，在开口部的周缘形成有用于安装在齿轮盖14上的凸缘部23A。另外，在凸缘部23A上设置有多个贯通孔23B，该多个贯通孔23B用于供用于将电机壳体23安装到齿轮盖14上的多个螺钉34通过。另外，在凸缘部23A上形成有环状凹部33A，在环状凹部33A中保持有电机壳体密封件33。The motor case 23 of the motor 200 is a resin molded product or metal, and a flange portion 23A for attachment to the gear cover 14 is formed on the periphery of the opening. In addition, the flange portion 23A is provided with a plurality of through holes 23B through which a plurality of screws 34 for attaching the motor case 23 to the gear cover 14 pass. In addition, an annular recessed portion 33A is formed on the flange portion 23A, and the motor case seal 33 is held in the annular recessed portion 33A.

在电机壳体23的内壁配置有金属制的金属套筒25，在其内侧配置有卷绕有驱动线圈26的定子铁芯27。在定子铁芯27的内侧配置有转子30，该转子30由成为电机200的旋转轴的电机轴29和转子磁铁28构成。电机轴29被轴承24和轴承31支承。转子磁铁28由固定在电机轴29的外周的永久磁铁构成。转子30由轴承24和31旋转自如地支承。A metallic metal sleeve 25 is arranged on an inner wall of the motor case 23 , and a stator core 27 around which a drive coil 26 is wound is arranged inside. Inside the stator core 27 is arranged a rotor 30 composed of a motor shaft 29 serving as a rotating shaft of the motor 200 and a rotor magnet 28 . The motor shaft 29 is supported by the bearing 24 and the bearing 31 . The rotor magnet 28 is composed of a permanent magnet fixed to the outer periphery of the motor shaft 29 . The rotor 30 is rotatably supported by bearings 24 and 31 .

电机200是内转子型无刷电机的构成。The motor 200 is an inner rotor type brushless motor.

支承电机轴29的与齿轮相反一侧的轴承24的外圈被压入到电机壳体23的内部，另外，电机轴29被压入轴承24的内圈。The outer ring of the bearing 24 that supports the side opposite to the gear of the motor shaft 29 is press-fitted into the motor case 23 , and the motor shaft 29 is press-fitted into the inner ring of the bearing 24 .

另一方面，在比转子30的转子磁铁28更靠电机齿轮13侧，支承电机轴29的电机齿轮13侧的轴承31的外圈被压入到齿轮盖14的轴承固定部14D的内径，电机轴29被压入到轴承31的内圈。On the other hand, on the side closer to the motor gear 13 than the rotor magnet 28 of the rotor 30, the outer ring of the bearing 31 supporting the motor shaft 29 on the side of the motor gear 13 is press-fitted into the inner diameter of the bearing fixing portion 14D of the gear cover 14, and the motor The shaft 29 is press-fitted into the inner ring of the bearing 31 .

在电机轴29的比轴承31更靠电机齿轮13侧压入有检测电机200的旋转的传感器磁铁32，在电机轴29的顶端部压入有电机齿轮13。传感器磁铁32与轴承31一起配置在轴承固定部14D的径向内侧(内径的内侧)。由此，能够使传感器磁铁32与逆变电路基板18的位置关系适当，能够消除传感器磁铁32的配置空间的浪费。A sensor magnet 32 for detecting the rotation of the motor 200 is pressed into the motor shaft 29 closer to the motor gear 13 than the bearing 31 , and the motor gear 13 is pressed into the tip of the motor shaft 29 . The sensor magnet 32 is arranged radially inside (inside the inner diameter) of the bearing fixing portion 14D together with the bearing 31 . Thereby, the positional relationship between the sensor magnet 32 and the inverter circuit board 18 can be made appropriate, and wasteful arrangement space of the sensor magnet 32 can be eliminated.

电机200的驱动线圈26的线径细，直径为约0.2mm～约0.3mm。因此，难以直接对线圈线进行树脂模制。另外，由于驱动线圈26线径细，所以容易因发动机的振动而摇晃，存在直接使用的话耐振性低的问题。The wire diameter of the driving coil 26 of the motor 200 is thin, and the diameter is about 0.2 mm to about 0.3 mm. Therefore, it is difficult to directly perform resin molding on the coil wire. In addition, since the drive coil 26 has a thin wire diameter, it tends to vibrate due to engine vibration, and there is a problem that vibration resistance is low when used as it is.

从电机200的驱动线圈26引出的多个线圈线26A通过设置在齿轮盖14上的多个贯通孔14C，通过熔接、软钎焊或焊接等方法与逆变电路基板18上的多个线圈线连接部18A电连接。线圈线26A被从驱动线圈26引出，不在其间经由母线或导电板等部件(中继构件)，而插通贯通孔14C，被引出到齿轮盖14的内壁侧、即逆变电路基板18侧。直接插通贯通孔14C的线圈线26A与逆变电路基板18上的线圈连接部18A直接连接。通过该构成，能够削减部件数量，并且能够减少电连接部位。A plurality of coil wires 26A drawn from the drive coil 26 of the motor 200 pass through a plurality of through holes 14C provided on the gear cover 14, and are connected to the plurality of coil wires on the inverter circuit board 18 by methods such as welding, soldering or welding. The connecting portion 18A is electrically connected. The coil wire 26A is drawn out from the drive coil 26 , passes through the through-hole 14C without passing through components (intermediate members) such as bus bars and conductive plates, and is drawn out to the inner wall side of the gear cover 14 , that is, the side of the inverter circuit board 18 . The coil wire 26A directly inserted through the through hole 14C is directly connected to the coil connection portion 18A on the inverter circuit board 18 . With this configuration, the number of parts can be reduced, and the number of electrical connection points can be reduced.

线圈线26A是从驱动线圈(绕组部)26引出的部分，从三相的驱动线圈(绕组部)26引出三根线圈线26A。线圈线26A由从驱动线圈(绕组部)26连续的一根线材构成。有时将线圈线26A称为线圈引出线。The coil wire 26A is a portion drawn from the drive coil (winding section) 26 , and three coil wires 26A are drawn from the three-phase drive coil (winding section) 26 . The coil wire 26A is constituted by one wire continuous from the drive coil (winding portion) 26 . The coil wire 26A is sometimes called a coil lead wire.

贯通孔14C与电机200的驱动线圈26的三相(U、V、W)对应地设置有多个。贯通孔14C的直径只要具有足以使一根线圈线26A通过的直径即可，因此不需要在齿轮盖14上设置用于使线圈线26A通过的大的孔。因此，能够防止齿轮盖14的强度降低。A plurality of through holes 14C are provided corresponding to the three phases (U, V, W) of the drive coil 26 of the motor 200 . The diameter of the through hole 14C is only sufficient to allow one coil wire 26A to pass therethrough. Therefore, it is not necessary to provide a large hole for passing the coil wire 26A in the gear cover 14 . Therefore, reduction in the strength of the gear cover 14 can be prevented.

另外，驱动线圈26在将三相(U、V、W)的驱动线圈作为单独的驱动线圈处理的情况下，可以认为存在多个(三个)驱动线圈，在将三相(U、V、W)的驱动线圈汇总作为驱动线圈处理的情况下，可以看作一个驱动线圈。In addition, when the drive coil 26 handles the three-phase (U, V, W) drive coil as a single drive coil, it can be considered that there are a plurality of (three) drive coils. When the driving coils of W) are collectively treated as driving coils, they can be regarded as one driving coil.

另外，由于贯通孔14C在其内径保持线圈线26A，所以能够防止线圈线26A因振动而摇晃，提高线圈线26A的耐振动性。进而，通过在线圈线26A与贯通孔14C之间的间隙中注入粘接剂等，能够进一步提高耐振性。另外，也可以在线圈线26A与贯通孔14C之间通过由橡胶等弹性构件构成的圆筒形的套筒来防止振动。另一方面，电机壳体23通过多个螺钉34与一体地埋设在齿轮盖14中的插入式螺母16螺合而被固定在齿轮盖14上。In addition, since the through hole 14C holds the coil wire 26A at its inner diameter, it is possible to prevent the coil wire 26A from shaking due to vibration, and to improve the vibration resistance of the coil wire 26A. Furthermore, by injecting an adhesive or the like into the gap between the coil wire 26A and the through hole 14C, the vibration resistance can be further improved. In addition, vibration may be prevented by a cylindrical sleeve made of an elastic member such as rubber between the coil wire 26A and the through hole 14C. On the other hand, the motor case 23 is fixed to the gear cover 14 by screwing a plurality of screws 34 into the plug-in nuts 16 integrally embedded in the gear cover 14 .

在向线圈线26A与贯通孔14C之间的间隙注入粘接剂等的情况下，在贯通孔14C的线圈线26A的周围填充与齿轮盖14的树脂材料不同的材料的物质。When injecting an adhesive or the like into the gap between the coil wire 26A and the through hole 14C, a material different from the resin material of the gear cover 14 is filled around the coil wire 26A of the through hole 14C.

如图1所示，电机200的旋转轴即电机轴29与节气门轴3平行地配置。另外，电机200通过电机齿轮13、中间齿轮12以及节气门齿轮8构成两级的减速机构，由此将在电机200中产生的转矩传递到与节气门齿轮8连结的节气门轴3。As shown in FIG. 1 , a motor shaft 29 which is a rotation shaft of the motor 200 is arranged parallel to the throttle shaft 3 . In addition, the motor 200 constitutes a two-stage speed reduction mechanism via the motor gear 13 , the intermediate gear 12 , and the throttle gear 8 , thereby transmitting the torque generated by the motor 200 to the throttle shaft 3 connected to the throttle gear 8 .

节气门传感器转子10被压入到节气门轴3的顶端。在与节气门传感器转子10相对的、齿轮盖14的位置上配置有固定在齿轮盖14上的节气门传感器20，节气门传感器20通过检测节气门传感器转子10的旋转角度、即节气门阀5的旋转角度，将节气门阀5的开度信息传输到ECU。The throttle sensor rotor 10 is pressed onto the top end of the throttle shaft 3 . A throttle sensor 20 fixed on the gear cover 14 is arranged at the position of the gear cover 14 opposite to the throttle sensor rotor 10. The throttle sensor 20 detects the rotation angle of the throttle sensor rotor 10, that is, the throttle valve 5 The rotation angle transmits the opening degree information of the throttle valve 5 to the ECU.

复位弹簧7的一个端部卡止于主体1的弹簧钩卡止部(未图示)，另一个端部卡止于设置在节气门齿轮8的卡止部(未图示)，对节气门齿轮8施加阀打开方向的旋转转矩。在主体1的齿轮收纳部侧设有形成为一定角度的挡块(未图示)，通过与节气门齿轮8的端部抵接，节气门齿轮8不会向打开方向旋转某一定角度以上。由此，在电流没有供给到电机200时，节气门阀5返回到某规定的默认角度。此外，图1图示了柴油发动机用的电控节气门装置，节气门阀5以相对于吸气流路2的截面大致垂直的角度打开。One end of the return spring 7 is locked on the spring hook locking part (not shown) of the main body 1, and the other end is locked on the locking part (not shown) provided on the throttle gear 8, and the throttle valve The gear 8 applies a rotational torque in the valve opening direction. A stopper (not shown) formed at a certain angle is provided on the gear housing side of the main body 1, and by abutting against the end of the throttle gear 8, the throttle gear 8 does not rotate more than a certain angle in the opening direction. Thus, when no current is supplied to the motor 200, the throttle valve 5 returns to a certain predetermined default angle. In addition, FIG. 1 shows an electronically controlled throttle device for a diesel engine, and the throttle valve 5 opens at an angle substantially perpendicular to the cross section of the intake flow path 2 .

在节气门轴3的顶端侧的外周部分地刻有螺纹槽，其与螺母9螺合，将节气门齿轮8固定在节气门轴3上。Thread grooves are partially engraved on the outer periphery of the front end side of the throttle shaft 3 , and the nuts 9 are screwed together to fix the throttle gear 8 to the throttle shaft 3 .

齿轮轴11被压入固定于设置在主体1的孔1B中，可旋转地支承中间齿轮12。The gear shaft 11 is press-fitted and fixed in the hole 1B provided in the main body 1, and supports the intermediate gear 12 rotatably.

盖组件100通过主体1的突状部1A与齿轮盖14的开口缘部14A抵接、齿轮盖14的裙部14B与主体1的突状部1A嵌合，从而进行盖组件100相对于主体1的定位。在齿轮盖14的开口缘部14A上，沿着开口缘部14A形成有呈环状的凹部22A，在凹部22A中保持有齿轮盖密封件22。In the cover assembly 100, the protruding portion 1A of the main body 1 abuts against the opening edge portion 14A of the gear cover 14, and the skirt portion 14B of the gear cover 14 is fitted into the protruding portion 1A of the main body 1, so that the cover assembly 100 is positioned relative to the main body 1. positioning. On the opening edge portion 14A of the gear cover 14 , an annular concave portion 22A is formed along the opening edge portion 14A, and the gear cover seal 22 is held in the concave portion 22A.

关于盖组件100的定位方法，不限于这里所述的方法，可以应用各种方法。盖组件100相对于主体1的固定方法也可应用各种方法，一般已知用多个金属制的夹子固定的方法、用多个螺钉固定的方法等，在本实施例中应用这些方法中的任一种。Regarding the positioning method of the cover assembly 100, it is not limited to the method described here, and various methods may be applied. Various methods can be applied to the method of fixing the cover assembly 100 to the main body 1, and a method of fixing with a plurality of metal clips, a method of fixing with a plurality of screws, etc. are generally known, and in this embodiment, one of these methods is used. any kind.

在本实施例中，通过上述的构成实现无刷电机式的电控节气门装置500。In the present embodiment, the brushless motor-type electronically controlled throttle device 500 is realized by the above configuration.

接着，对电控节气门装置500的盖组件100的制造方法进行说明。Next, a method of manufacturing the cover assembly 100 of the electronically controlled throttle device 500 will be described.

说明图2所示的在电机200中压入电机齿轮13的产品(以下称为电机/齿轮组件201)的制造方法。A method of manufacturing a product (hereinafter referred to as a motor/gear assembly 201 ) in which the motor gear 13 is press-fitted into the motor 200 shown in FIG. 2 will be described.

首先，将轴承24压入由金属或树脂形成的电机壳体23中。接着，将金属套筒25和卷绕有驱动线圈26的定子铁芯27压入电机壳体23。该组件被称为组件A。First, the bearing 24 is press-fitted into the motor case 23 formed of metal or resin. Next, the metal sleeve 25 and the stator core 27 wound with the drive coil 26 are pressed into the motor case 23 . This component is called component A.

另一方面，在转子30中，在电机轴29上依次压入固定轴承31、传感器磁铁32、电机齿轮13。该组件被称为组件B。将组件B插入组件A中，将组件B的电机轴29的端部压入到组件A的轴承24的内圈中。以上，将电机齿轮13压入固定在电机200上的电机/齿轮组件201作为电控节气门装置500的一部分完成。On the other hand, in the rotor 30 , a fixed bearing 31 , a sensor magnet 32 , and a motor gear 13 are sequentially press fitted onto the motor shaft 29 . This component is called component B. Insert assembly B into assembly A, pressing the end of assembly B's motor shaft 29 into the inner race of assembly A's bearing 24 . Above, the motor gear 13 is pressed into the motor/gear assembly 201 fixed on the motor 200 as a part of the electronically controlled throttle device 500 .

接着，使用图3至图5进行说明。图3是本发明的实施例1的盖组件100的分解立体图。图4是本发明的实施例1的齿轮盖14的俯视图(内壁侧)。图5是本发明的实施例1的齿轮盖15的立体图(外壁侧)。Next, description will be made using FIGS. 3 to 5 . FIG. 3 is an exploded perspective view of the cover assembly 100 according to Embodiment 1 of the present invention. Fig. 4 is a plan view (inner wall side) of the gear cover 14 according to the first embodiment of the present invention. Fig. 5 is a perspective view (outer wall side) of the gear cover 15 according to the first embodiment of the present invention.

如图3所示，使用设置在各个基板18、20A上的贯通孔18C、20B和形成在齿轮盖14的内壁上的销(突状部)14x、14y，通过热铆接，将预先焊接了引线端子21的逆变电路基板18和同样焊接了引线端子21的节气门传感器20固定在齿轮盖14上。或者，也可以用粘接剂将各个基板18、20A固定在齿轮盖14上。As shown in FIG. 3 , using the through-holes 18C, 20B provided on the respective substrates 18, 20A and the pins (protrusions) 14x, 14y formed on the inner wall of the gear cover 14, the pre-welded lead wires are welded by thermal caulking. The inverter circuit substrate 18 of the terminal 21 and the throttle sensor 20 to which the lead terminal 21 is also welded are fixed on the gear cover 14 . Alternatively, the respective substrates 18 and 20A may be fixed to the gear cover 14 with an adhesive.

接着，在图3及图4中，在设置在连接器端子15的与连接器17侧的相反一侧的端部上的焊接用的突起部15A上，对焊接在逆变电路基板18及节气门传感器20上的引线端子21的一个端部进行电阻焊接，电连接各引线端子21和连接器端子15。Next, in FIG. 3 and FIG. 4 , on the soldering protrusion 15A provided on the end portion of the connector terminal 15 opposite to the connector 17 side, the inverter circuit board 18 and the node are soldered. One end of the lead terminal 21 on the valve sensor 20 is resistance-welded to electrically connect each lead terminal 21 and the connector terminal 15 .

在这些作业中，在本实施例的电控节气门装置500中，逆变电路基板18和节气门传感器20平面配置在齿轮盖14的内壁上，焊接部位配置成能够从一个方向朝向齿轮盖14的内壁侧进行作业，因此，能够通过一系列的工序实施逆变电路基板18和节气门传感器20向齿轮盖14的固定以及所有引线端子21的焊接实现的电连接。因此，在本实施例的情况下，在构筑生产设备时，容易将设备构筑为执行一系列的工序的自动化设备。通过该工序制造的产品是齿轮盖14和基板18、20A的局部组件(以下称为齿轮盖/基板组件101)。In these operations, in the electronically controlled throttle device 500 of this embodiment, the inverter circuit board 18 and the throttle sensor 20 are arranged on the inner wall of the gear cover 14 in a plane, and the welding parts are arranged so that they can face the gear cover 14 from one direction. Therefore, the fixing of the inverter circuit board 18 and the throttle sensor 20 to the gear cover 14 and the electrical connection by welding of all the lead terminals 21 can be performed through a series of steps. Therefore, in the case of this embodiment, when constructing a production facility, it is easy to construct the facility as an automated facility that executes a series of processes. The product manufactured through this process is a partial assembly of the gear cover 14 and the base plate 18, 20A (hereinafter referred to as the gear cover/base plate assembly 101).

接着，将电机/齿轮组件201组装到齿轮盖/基板组件101上，制作盖组件100。此时，可以与图2所示的方向相同地，以相对于齿轮盖14位于下侧的方式固定齿轮盖基板组件101，使电机/齿轮组件201相对于齿轮盖14从上方进行组装。组装时，首先将从电机/齿轮组件201垂下的线圈线26A插入到设置在齿轮盖14的轴承固定部14D(图5)上的多个贯通孔14C中。为了使此时的作业变得容易，也可以在贯通孔14C的入口部分设置锥状的开口部14E(图5)。Next, the motor/gear assembly 201 is assembled on the gear cover/substrate assembly 101 to manufacture the cover assembly 100 . At this time, the gear cover substrate assembly 101 can be fixed so as to be positioned below the gear cover 14 in the same direction as shown in FIG. When assembling, first, the coil wire 26A hanging from the motor/gear assembly 201 is inserted into the plurality of through holes 14C provided in the bearing fixing portion 14D ( FIG. 5 ) of the gear cover 14 . In order to facilitate the work at this time, a tapered opening 14E may be provided at the entrance of the through hole 14C ( FIG. 5 ).

轴承固定部14D形成为厚壁的圆筒形状部(凸台部)，其在平面部14h的平面方向上的壁厚t2比设置有连接器17、电机200的齿轮盖14的平面部14h的壁厚t1厚。即，轴承固定部14D形成朝向齿轮盖14的外侧突出的圆筒状的突状部，轴承固定部14D的径向的壁厚t2比齿轮盖14的平面部14h的壁厚t1厚。The bearing fixing portion 14D is formed as a thick cylindrical portion (boss portion) whose wall thickness t2 in the plane direction of the plane portion 14h is smaller than that of the plane portion 14h on which the connector 17 and the gear cover 14 of the motor 200 are provided. The wall thickness t1 is thick. That is, the bearing fixing portion 14D forms a cylindrical protrusion protruding outward from the gear cover 14 , and the radial thickness t2 of the bearing fixing portion 14D is thicker than the thickness t1 of the planar portion 14 h of the gear cover 14 .

多个贯通孔14C排列配置在以电机100的旋转轴中心LC为中心的周向上，从凸台部14D的突出侧的上端面贯通到齿轮盖14的内壁侧。在将电机壳体23组装到凸台部14D上时，凸台部14D的外周面进行电机壳体23的径向的定位，以使线圈线26A插入到贯通孔14C中。The plurality of through-holes 14C are arranged in a row in the circumferential direction centered on the rotation shaft center LC of the motor 100 , and penetrate from the upper end surface on the protruding side of the boss portion 14D to the inner wall side of the gear cover 14 . When the motor case 23 is assembled to the boss portion 14D, the outer peripheral surface of the boss portion 14D is positioned in the radial direction of the motor case 23 so that the coil wire 26A is inserted into the through hole 14C.

另外，凸台部14D的径向(平面部14h的平面方向)上的壁厚t2厚，即使在设置了贯通孔14C的情况下，也能够确保充分的刚性。In addition, the boss portion 14D has a large thickness t2 in the radial direction (the planar direction of the planar portion 14 h ), and sufficient rigidity can be ensured even when the through-hole 14C is provided.

图6是本发明的实施例1的电机200和电机/齿轮组件201的放大截面图。6 is an enlarged cross-sectional view of the motor 200 and the motor/gear assembly 201 according to Embodiment 1 of the present invention.

轴承固定部14D的轴承保持内径db为与轴承31的外径Db成为过渡配合的尺寸(db≈Db)。在本实施例中，在轴承固定部14D的径向内侧配置有检测电机200的旋转的传感器磁铁32。The bearing holding inner diameter db of the bearing fixing portion 14D is a dimension for transitional fit with the outer diameter Db of the bearing 31 (db≈Db). In the present embodiment, the sensor magnet 32 for detecting the rotation of the motor 200 is disposed radially inside the bearing fixing portion 14D.

因此，传感器磁铁32的外径Dm比db小(Dm<db)，其设为传感器磁铁32能够在轴承固定部14D的内径的内侧旋转的大小。另外，传感器磁铁32的外径Dm比设置在逆变电路基板18上的第一基板孔18B(图3)的内径ds大(Dm>ds)，设为安装在逆变电路基板18的背面的霍尔IC 19和传感器磁铁32在第一基板孔18B的径向上接近那样的外径。另外，电机齿轮13的齿顶圆直径Dg比ds小，以便在作为电机/齿轮组件201的状态下，能够通过第一基板孔18A组装电机齿轮13。Therefore, the outer diameter Dm of the sensor magnet 32 is smaller than db (Dm<db), and the sensor magnet 32 is set to such a size that the sensor magnet 32 can rotate inside the inner diameter of the bearing fixing portion 14D. In addition, the outer diameter Dm of the sensor magnet 32 is larger than the inner diameter ds of the first substrate hole 18B ( FIG. 3 ) provided on the inverter circuit board 18 (Dm>ds), and is mounted on the back surface of the inverter circuit board 18 . The Hall IC 19 and the sensor magnet 32 approach such outer diameters in the radial direction of the first substrate hole 18B. In addition, the addendum circle diameter Dg of the motor gear 13 is smaller than ds so that the motor gear 13 can be assembled through the first substrate hole 18A in the state as the motor/gear assembly 201 .

综上所述，通过以db≈Db>Dm>ds>Dg的尺寸关系预先设计或选定齿轮盖14、轴承31、传感器磁铁32、逆变电路基板18以及电机齿轮13，能够容易地进行本实施例的盖组件100的组装。To sum up, by pre-designing or selecting the gear cover 14, the bearing 31, the sensor magnet 32, the inverter circuit board 18 and the motor gear 13 according to the dimensional relationship of db≈Db>Dm>ds>Dg, this process can be easily performed. Assembly of the lid assembly 100 of the embodiment.

本实施例的电控节气门装置500如下进行构成。The electronically controlled throttle device 500 of the present embodiment is configured as follows.

电控节气门装置500具备：主体1，其收纳节气门阀5；树脂制的齿轮盖14，其与主体1连接，且在与主体1之间形成齿轮8、12、13的收纳空间；无刷电机200，其设置在齿轮盖14的外壁侧，且使齿轮旋转；逆变电路基板18，其设置在齿轮盖14的内壁侧，且控制无刷电机200的驱动；以及轴承31，其支承无刷电机200的旋转轴29，齿轮盖14具有轴承固定部14D，该轴承固定部14D设置在无刷电机200与逆变电路基板之间，且固定轴承31，轴承固定部14D形成有多个贯通孔14C，该多个贯通孔14C用于供从无刷电机200的驱动线圈26引出的多个线圈引出线26A通过。The electronically controlled throttle device 500 includes: a main body 1 that accommodates the throttle valve 5; a resin gear cover 14 that is connected to the main body 1 and forms a storage space for the gears 8, 12, and 13 between the main body 1; The motor 200 is provided on the outer wall side of the gear cover 14 and rotates the gears; the inverter circuit board 18 is provided on the inner wall side of the gear cover 14 and controls the driving of the brushless motor 200; and the bearing 31 supports the brushless motor 200. The rotating shaft 29 of the brush motor 200, the gear cover 14 has a bearing fixing part 14D, and the bearing fixing part 14D is arranged between the brushless motor 200 and the inverter circuit board, and the bearing 31 is fixed, and the bearing fixing part 14D is formed with a plurality of through holes. The hole 14C is a plurality of through-holes 14C for passing a plurality of coil lead wires 26A drawn out from the drive coil 26 of the brushless motor 200 .

[实施例2]使用图7说明实施例2。图7是本发明的实施例2的盖组件100的分解立体图。在实施例2中，对与实施例1相同的构成标注与实施例1相同的符号，并省略说明。另外，对于标注了与实施例1相同的符号的构成，在存在与实施例1不同的部分的情况下，说明其不同之处。[Example 2] Example 2 will be described using FIG. 7 . FIG. 7 is an exploded perspective view of a cover assembly 100 according to Embodiment 2 of the present invention. In Example 2, the same components as in Example 1 are given the same symbols as in Example 1, and descriptions thereof are omitted. In addition, when there is a part different from Example 1 about the structure which attached|subjected the same code|symbol as Example 1, the point of difference is demonstrated.

在实施例2中，实施例1中说明的电控节气门装置500中设置在齿轮盖14上的多个贯通孔14C排列配置在以电机(无刷电机)200的旋转轴中心LC为中心的周向上。在本实施例中，多个贯通孔14C配置在以电机(无刷电机)200的旋转轴中心LC为中心的同一半径(圆C1上)。In Embodiment 2, the plurality of through-holes 14C provided in the gear cover 14 in the electronically controlled throttle device 500 described in Embodiment 1 are arranged in a row around the rotation shaft center LC of the motor (brushless motor) 200 . Zhou Xiang. In the present embodiment, the plurality of through-holes 14C are arranged on the same radius (on the circle C1 ) centering on the rotation shaft center LC of the motor (brushless motor) 200 .

由此，能够使从在周向上距电机200的旋转轴中心LC相等的距离的位置引出的多个线圈线26A以相同的引出方式通过齿轮盖14的贯通孔14C，与逆变电路基板18的线圈连接部18A连接。Thereby, the plurality of coil wires 26A drawn out from positions equidistant from the rotational shaft center LC of the motor 200 in the circumferential direction can pass through the through-hole 14C of the gear cover 14 in the same drawn-out manner, and connect with the inverter circuit board 18. The coil connection portion 18A is connected.

其他的构成和效果与实施例1相同。Other configurations and effects are the same as those in Embodiment 1.

[实施例3]使用图8说明实施例2。图8是本发明的实施例3的盖组件100的分解立体图。在实施例3中，对与实施例1和实施例2相同的构成标注与实施例1和实施例2相同的符号，省略说明。另外，对于标注了与实施例1和实施例2相同的符号的构成，在存在与实施例1和实施例2不同的部分的情况下，说明其不同之处。[Example 3] Example 2 will be described using FIG. 8 . Fig. 8 is an exploded perspective view of the cover assembly 100 according to the third embodiment of the present invention. In Example 3, the same symbols as those in Example 1 and Example 2 are assigned to the same configurations as in Example 1 and Example 2, and description thereof will be omitted. In addition, when there is a part different from Example 1 and Example 2 about the structure which attached|subjected the same code|symbol as Example 1 and Example 2, the difference is demonstrated.

在实施例3中，实施例2中说明的电控节气门装置500中设置在齿轮盖14上的多个贯通孔14C相对于电机(无刷电机)200的旋转轴中心LC点对称地配置。即，如图8所示的齿轮盖14那样，以电机200的旋转轴中心为中心的点对称地配置贯通孔14C。特别是在本实施例中，形成四个贯通孔14C，四个贯通孔14C以将旋转轴中心LC作为中心的中心角为90°的间隔来配置。In the third embodiment, the plurality of through-holes 14C provided in the gear cover 14 in the electronically controlled throttle device 500 described in the second embodiment are arranged point-symmetrically with respect to the rotation axis center LC of the motor (brushless motor) 200 . That is, like the gear cover 14 shown in FIG. 8 , the through-holes 14C are arranged symmetrically about the center of the rotation axis of the motor 200 . In particular, in this embodiment, four through-holes 14C are formed, and the four through-holes 14C are arranged at intervals of a center angle of 90° around the rotation axis center LC.

在本实施例的情况下，从三相的驱动线圈26引出三根线圈线26A，贯通孔14C只要有三个即可。即，使用四个贯通孔14C中的三个贯通孔14C，一个贯通孔14C是不作为线圈线26A的插通孔而使用的虚设。换言之，多个贯通孔14C包含供线圈线(线圈引出线)26A插通的线圈引出线插通孔和不供线圈线(线圈引出线)6A插通的虚设的线圈引出线插通孔。In the case of the present embodiment, three coil wires 26A are drawn from the three-phase drive coils 26, and only three through holes 14C are required. That is, three through-holes 14C are used among the four through-holes 14C, and one through-hole 14C is a dummy that is not used as a through-hole for the coil wire 26A. In other words, the plurality of through holes 14C include a coil lead wire insertion hole through which the coil wire (coil lead wire) 26A is inserted and a dummy coil lead wire insertion hole through which the coil wire (coil lead wire) 6A is not inserted.

由此，在轴承固定部(凸台部)14D中，使树脂盖的成型时的树脂流动相对于电机200的旋转轴中心LC点对称，能够防止成型后的向一个方向的变形或强度的偏差。Thus, in the bearing fixing portion (boss portion) 14D, the flow of the resin during molding of the resin cover is made point-symmetrical with respect to the rotation axis center LC of the motor 200, so that deformation in one direction and variation in strength after molding can be prevented. .

其他的构成和效果与实施例1和2相同。Other constitutions and effects are the same as those in Embodiments 1 and 2.

根据本发明的实施例，能够使无刷电机200与驱动电路基板18之间的布线简化，减少电连接点的部位，同时能够减少部件数量。According to the embodiment of the present invention, the wiring between the brushless motor 200 and the drive circuit substrate 18 can be simplified, the number of electrical connection points can be reduced, and the number of components can be reduced.

另外，由于通过贯通孔14C来保持布线(线圈线)26A，因此耐振动性也提高。另外，能够将现有技术中重叠配置的节气门传感器基板20和驱动电路基板18平面配置，因此可以减小盖组件100的厚度。In addition, since the wiring (coil wire) 26A is held by the through-hole 14C, vibration resistance is also improved. In addition, the throttle sensor substrate 20 and the drive circuit substrate 18 which are stacked in the prior art can be arranged in a plane, so the thickness of the cover assembly 100 can be reduced.

另外，本发明不限于上述各实施例，还包含各种变形例。例如，上述实施例是为了容易理解地说明本发明而进行的详细说明，并不一定限定于具备全部的构成。另外，可以将一个实施例的构成的一部分置换为另一个实施例的构成，另外，也可以在一个实施例的构成中增加另一个实施例的构成。另外，对于各实施例的构成的一部分，可以进行其他构成的追加、删除、置换。In addition, the present invention is not limited to the above-described embodiments, and includes various modified examples. For example, the above-described embodiments are detailed descriptions for explaining the present invention in an easy-to-understand manner, and are not necessarily limited to having all the configurations. In addition, a part of the configuration of one example may be replaced with a configuration of another example, and a configuration of another example may be added to the configuration of one example. In addition, addition, deletion, and replacement of other configurations may be performed on a part of the configurations of the respective embodiments.

符号说明Symbol Description

1…主体，5…节气门阀，8、12、13…齿轮，14…齿轮盖，14C…贯通孔，14D…轴承固定部，14h…齿轮盖14的平面部，18…逆变电路基板，26…驱动线圈，26A…线圈引出线，29…无刷电机200的旋转轴，31…轴承，32…传感器磁铁，200…无刷电机。1...main body, 5...throttle valve, 8, 12, 13...gear, 14...gear cover, 14C...through hole, 14D...bearing fixing part, 14h...flat part of gear cover 14, 18...inverter circuit board, 26 ...drive coil, 26A...coil lead-out wire, 29...rotating shaft of brushless motor 200, 31...bearing, 32...sensor magnet, 200...brushless motor.