WO2020248412A1 - 一种电机控制器及其应用的bldc电机 - Google Patents

一种电机控制器及其应用的bldc电机 Download PDF

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Publication number
WO2020248412A1
WO2020248412A1 PCT/CN2019/105367 CN2019105367W WO2020248412A1 WO 2020248412 A1 WO2020248412 A1 WO 2020248412A1 CN 2019105367 W CN2019105367 W CN 2019105367W WO 2020248412 A1 WO2020248412 A1 WO 2020248412A1
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WIPO (PCT)
Prior art keywords
motor controller
heat dissipation
motor
rectifier bridge
circuit board
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PCT/CN2019/105367
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English (en)
French (fr)
Inventor
曾崇生
Original Assignee
中山大洋电机股份有限公司
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Publication date
Priority claimed from CN201920871488.3U external-priority patent/CN209896946U/zh
Priority claimed from CN201910502247.6A external-priority patent/CN110224640A/zh
Application filed by 中山大洋电机股份有限公司 filed Critical 中山大洋电机股份有限公司
Publication of WO2020248412A1 publication Critical patent/WO2020248412A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2205/00—Specific aspects not provided for in the other groups of this subclass relating to casings, enclosures, supports
    • H02K2205/09—Machines characterised by drain passages or by venting, breathing or pressure compensating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position

Definitions

  • the invention relates to a motor controller and a BLDC motor used in the same.
  • the existing motor includes a motor body and a motor controller installed at the bottom of the motor body.
  • the motor controller includes a control box and a control board installed in the control box.
  • the control board is equipped with a power module and a rectifier bridge module with higher heat. . Since the diameter of the motor is related to the power of the motor, the size of motors with different powers is different, which makes the control board in the motor controller also need to change its size according to the size of the motor, which causes a waste of resources.
  • the existing BLDC motor includes a motor body and a motor controller.
  • the motor body includes a rotating shaft 1A, a permanent The magnetic rotor assembly 2A, the stator assembly 3A and the housing assembly.
  • the permanent magnet rotor assembly 2A and the stator assembly 3A form a magnetic coupling and are mounted on the housing assembly.
  • the stator assembly 3 includes a stator core and coil windings wound on the stator core.
  • the housing assembly includes a cylindrical housing 4A, a front end cover 5A, and a rear end cover 6A.
  • the permanent magnet rotor assembly 2A is mounted on the shaft 1A.
  • the stator assembly 3A and the cylindrical housing 4A are connected together and nested in the permanent magnet rotor assembly.
  • the front end cover 5A and the rear end cover 6A are respectively installed on both ends of the cylindrical shell 4A, the rotating shaft 1A is supported on the bearings of the front end cover 5A and the rear end cover 6A, and the above motor controller is installed outside the casing assembly ,
  • a circuit board 9A is arranged in the motor controller, the circuit board 9A is installed in a control box 7A, and the control box 7A is connected to the rear cover 6A for installation.
  • the control box of the motor has only one cavity to install the circuit board.
  • the heat dissipation structure of the control box is imperfect and the heat dissipation effect is poor.
  • the original heat dissipation structure of the control box can no longer meet the requirements and needs to be independently designed
  • a new controller mechanism of the machine can improve the heat dissipation capacity and meet the product requirements.
  • the purpose of the present invention is to provide a motor controller and a BLDC motor applied thereto, which can solve the technical problems of unreasonable structural layout of the existing motor controller, insufficient heat dissipation capacity, and inability to meet the heat dissipation requirements of high-power motors.
  • the first object of the present invention is to provide a motor controller, including a control box and a control board installed in the control box.
  • the control box is provided with at least two cavities, one of which is set to the size
  • the circuit board installation cavity matched with the control board, and the control board is installed in the circuit board installation cavity.
  • a rectifier bridge installation cavity is provided on one side or outside of the circuit board installation cavity, wherein the first bottom surface of the rectifier bridge installation cavity is higher than the second bottom surface of the circuit board installation cavity by a certain distance.
  • the above-mentioned control board is provided with a rectifier bridge, the rectifier bridge protrudes radially outside the control board, and the rectifier bridge is closely arranged on the first bottom surface of the installation cavity of the rectifier bridge and locked by the first locking device.
  • An IGBT drive board is installed below the control board, a number of power modules are installed on the IGBT drive board, the power modules protrude radially out of the IGBT drive board, and the edge of the second bottom surface of the circuit board installation cavity protrudes upward.
  • the bottom of the control box is provided with a second heat dissipation boss on the periphery of the circuit board mounting cavity, and there are a number of ventilation holes in the second heat dissipation boss.
  • the aforementioned ventilation holes are located beside the installation cavity of the rectifier bridge and the heat dissipation boss.
  • the outer surface of the bottom of the control box is provided with a number of heat dissipation ribs, and the outlet of the ventilation hole is arranged between two adjacent heat dissipation ribs.
  • the plurality of heat dissipation ribs of the aforementioned control box are divided into longitudinal heat dissipation ribs and horizontal heat dissipation ribs.
  • the above-mentioned first locking device includes a first pressure rod and two first screws.
  • the two first screws are respectively installed at both ends of the first pressure rod.
  • the first pressure rod presses the rectifier bridge and the two first screws are fixed. Install the cavity on both sides of the rectifier bridge.
  • the above-mentioned second locking device includes a second pressing rod and a second screw.
  • the second pressing rod compresses the two power modules and locks them on the heat dissipation boss by the second screw.
  • the circuit board mounting cavity has a circular periphery. Cylinder.
  • the second object of the present invention is to provide a BLDC motor, which includes a motor body and a motor controller mounted on the bottom of the motor body.
  • the motor body includes a stator assembly, a rotor assembly and a motor housing, and is characterized in that the motor controller is The motor controller described above.
  • the present invention has the following effects:
  • the motor controller includes a control box and a control board installed inside the control box.
  • the control box is provided with at least two cavities, one of which is set as a circuit board installation cavity with a size matching the control board ,
  • the control board is installed in the circuit board installation cavity;
  • the control box has a simple structure, and motors of different sizes and sizes can be standardized and generalized by adopting the control board and the installation cavity of uniform specifications, which can improve Design and production efficiency, while reducing costs and simplifying management.
  • Figure 1 is a perspective view of an existing BLDC motor
  • Figure 2 is a structural cross-sectional view of an existing BLDC motor
  • Fig. 3 is a perspective view of a motor controller of a conventional BLDC motor
  • FIG. 4 is a bottom view of the motor controller provided in the first embodiment of the present invention.
  • Figure 5 is a top view of the motor controller
  • Figure 6 is a cross-sectional view taken along line A-A of Figure 5;
  • Figure 7 is an exploded view of the motor controller
  • Figure 8 is a top view of the control box in the motor controller
  • Figure 9 is an angled perspective view of the control box in the motor controller
  • Figure 10 is another perspective view of the control box in the motor controller
  • FIG. 11 is another exploded view of a motor controller according to an embodiment of the present invention.
  • Fig. 12 is a circuit diagram of a motor controller arrangement according to an embodiment of the present invention.
  • FIG. 13 is a schematic diagram of the structure of a BLDC motor provided by the second embodiment of the present invention.
  • Fig. 14 is an exploded view of the BLDC motor provided in the second embodiment of the present invention.
  • this embodiment provides a motor controller, which includes a control box and a control board installed in the control box. At least two cavities are provided in the control box, wherein A circuit board installation cavity 11 is set to match the size of the control board 2, and the control board 2 is installed in the circuit board installation cavity 11.
  • the control box 1 has a simple structure, and motors of different sizes, powers and volumes can be standardized and generalized by adopting a control board 2 of a uniform size and a mounting cavity 11, which can not only improve design and production efficiency, but also reduce Cost and simplified management.
  • a rectifier bridge installation cavity 12 is provided on one side or outside of the circuit board installation cavity 11, wherein the first bottom surface 120 of the rectifier bridge installation cavity 12 is higher than the second bottom surface 110 of the circuit board installation cavity 11. distance.
  • the structure layout is reasonable.
  • the above-mentioned control board 2 is provided with a rectifier bridge 21 which protrudes radially outside the control board 2.
  • the rectifier bridge 21 is closely arranged on the first bottom surface 120 of the rectifier bridge installation cavity 12 and passes through the first lock. The tightening device 13 is locked.
  • the rectifier bridge 21 is easy to install and has a good heat dissipation effect.
  • the bottom of the control box 1 is provided with a second heat dissipation boss 16 on the periphery of the circuit board mounting cavity 11, and there are a number of ventilation holes 161 inside the second heat dissipation boss.
  • the second heat dissipation boss 16 and the ventilation holes 16 enhance the ventilation and heat dissipation inside the control box 1.
  • An IGBT drive board 3 is installed under the control board 2 mentioned above.
  • a number of power modules 31 are installed on the IGBT drive board 3.
  • the power modules 31 protrude radially out of the IGBT drive board 3, and the circuit board is installed in the first cavity 11
  • a plurality of heat dissipation bosses 14 protrude upward from the edges of the two bottom surfaces 110, and a plurality of power modules 31 are closely attached to the plurality of heat dissipation bosses 14 and locked by the second locking device 15.
  • the power module 31 is easy to install and has a good heat dissipation effect.
  • the aforementioned ventilation hole 161 is located beside the rectifier bridge installation cavity 12 and the heat dissipation boss 14. The heat dissipation effect is further enhanced.
  • a number of heat dissipation ribs 17 are provided on the outer surface of the bottom of the control box 1, and the outlet of the ventilation hole 161 is arranged between two adjacent heat dissipation ribs 17.
  • the plurality of heat dissipation ribs 17 of the control box 1 described above are divided into longitudinal heat dissipation ribs 171 and transverse heat dissipation ribs 172.
  • the heat dissipation ribs 17 cover the heat source area.
  • the above-mentioned first locking device 13 includes a first pressure rod 131 and two first screws 132.
  • the two first screws 132 are respectively installed at both ends of the first pressure rod 131, and the first pressure rod 131 presses the rectifier bridge 21.
  • the two first screws 132 are fixed on both sides of the rectifier bridge installation cavity 12.
  • the first locking device 13 has a simple structure and is easy to install.
  • the periphery of the circuit board mounting cavity 11 is a cylindrical body 19.
  • a number of support posts 18 are arranged on the edge of the circuit board installation cavity 11, and screw holes are arranged on the support posts 18, the control board 2 is supported on the support posts 18, and the control board 2 is locked by screwing into the screw holes.
  • the above-mentioned second locking device 15 includes a second pressing rod 151 and a second screw 152.
  • the second pressing rod 151 compresses the two power modules 31 and is locked on the heat dissipation boss 14 by the second screw 152.
  • the circuit board The periphery of the installation cavity 11 is a cylindrical body 19.
  • the second locking device 15 has a simple structure and is convenient to install.
  • the motor controller of the present invention in Figure 12 is arranged with a microprocessor, a rotor position detection circuit, an analog signal detection circuit, an inverter circuit, a finishing bridge, and a capacitor C1, wherein the microprocessor, the analog signal detection circuit, the finishing bridge and the capacitor C1 Integrated on the control board 2, the power module 31 of the inverter circuit is integrated on the IGBT drive board 3, the power module 31 is an IGBT, and the rotor position detection circuit is separately integrated on a Hall circuit board.
  • this embodiment provides a BLDC motor, which includes a motor body 91 and a motor controller 92 installed at the bottom of the motor body 91.
  • the motor body 91 includes a stator assembly, a rotor assembly and a motor housing. It is characterized in that the motor controller 92 is the motor controller described in the first embodiment.
  • the heat dissipation effect of the motor controller 92 is enhanced, and the production cost is saved.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

本发明公开了一种电机控制器及其应用的电机，所述电机控制器包括控制盒和安装于控制盒里面的控制板，其所述控制盒的里面设有至少两个空腔，其中一个设为规格大小与控制板相匹配的线路板安装空腔，控制板安装在线路板安装空腔内。电机控制器结构简单，大小功率和体积不同电机可通过采用统一规格大小的控制板及安装空腔，以实现零部件的标准化和通用化，既可以提高设计和生产效率，同时又可以降低成本和简化管理。

Description

一种电机控制器及其应用的BLDC电机 技术领域：
本发明涉及一种电机控制器及其应用的BLDC电机。
背景技术：
现有的电机包括电机本体和安装在电机本体底部的电机控制器，电机控制器，包括控制盒和安装于控制盒里面的控制板，控制板上安装有热量较高的功率模块和整流桥模块。由于电机的直径与电机功率有关，不同功率的电机大小也不相同，这使得电机控制器中的控制板也需要根据电机的大小改变其大小尺寸，这造成了资源的浪费。
目前，申请人开发的直径尺寸为140的直流无刷电机，见专利号:CN201420052124.X申请日:2014.01.26公开(公告)号:CN203708009U的发明专利，名称为：一种外置控制卡的直流永磁同步电机及应用其的HVAC控制***，该电机结构如图1、图2和图3所示，现有BLDC电机包括电机本体和电机控制器，所述的电机本体包括转轴1A、永磁转子组件2A、定子组件3A和机壳组件，永磁转子组件2A和定子组件3A形成磁藕合并安装在机壳组件上，定子组件3包括定子铁芯和卷绕在定子铁芯上线圈绕组，机壳组件包括圆筒壳体4A、前端盖5A、后端盖6A，永磁转子组件2A安装在转轴1A上，定子组件3A与圆筒壳体4A连接在一起嵌套在永磁转子组件2A外面，前端盖5A和后端盖6A分别安装在圆筒壳体4A的两端，转轴1A支承在前端盖5A和后端盖6A的轴承上，上述电机控制器安装在机壳组件的外面，电机控制器里面设置电路板9A，电路板9A安装在一个控制盒7A里面，控制盒7A与后端盖6A连接安装。该电机的控制盒单独只有一个空腔安装线路板，该控制盒的散热结构不完善，散热效果差，当电机本体的功率提高时，原来的控制盒的散热结构已经不能满足要求，需要独立设计一种新的机的控制器机构以提升散热能力，满足产品要求。
发明内容：
本发明的目的是提供一种电机控制器及其应用的BLDC电机，能解决现有电机控制器的结构布局不合理，散热能力不足，不能满足高功率电机的散热要求的技术问题。
本发明的目的是通过下述技术方案予以实现的。
本发明的第一个目的是提供一种电机控制器，包括控制盒和安装于控制盒里面的控制板，其所述控制盒的里面设有至少两个空腔，其中一个设为规格大小与控制板相匹配的线路板安装空腔，控制板安装在线路板安装空腔内。
上述所述线路板安装空腔一侧或外侧设有一个整流桥安装空腔，其中整流桥安装空腔的第一底面比线路板安装空腔的第二底面高出一段距离。
上述所述控制板上设置有整流桥，整流桥径向凸出在控制板外，整流桥紧贴安置在整流桥安装空腔的第一底面上且通过第一锁紧装置锁紧。
上述所述控制板下方安装有IGBT驱动板，IGBT驱动板上安装有若干功率模块，功率模块径向凸出在IGBT驱动板外，所述线路板安装空腔的第二底面的边缘向上凸出有若干散热凸台，若干功率模块紧贴在若干散热凸台上并通过第二锁紧装置锁紧。
上述所述控制盒的底部在线路板安装空腔***设有第二散热凸台，第二散热凸台里面有若干通风孔。
上述所述通风孔位于整流桥安装空腔和散热凸台旁。
上述所述控制盒的底部外表面设有若干散热筋，所述通风孔出口设置在相邻两个散热筋之间。
上述所述控制盒的若干散热筋分为纵向散热筋和横向散热筋。
上述所述第一锁紧装置包括第一压杆和两个第一螺钉，两个第一螺钉分别安装在第一压杆两端，第一压杆压紧整流桥，两个第一螺钉固定在整流桥安装空腔两侧。
上述所述第二锁紧装置包括第二压杆和第二螺钉，第二压杆压紧2个功率 模块并通过第二螺钉锁紧在散热凸台上，线路板安装空腔的***是圆筒体。
本发明的第二个目的是提供一种BLDC电机，包括电机本体和安装在电机本体底部的电机控制器，电机本体包括定子组件、转子组件和电机外壳，其特征在于：所述电机控制器为上述所述的电机控制器。
本发明与现有技术相比，具有如下效果：
1)电机控制器包括控制盒和安装于控制盒里面的控制板，其所述控制盒的里面设有至少两个空腔，其中一个设为规格大小与控制板相匹配的线路板安装空腔，控制板安装在线路板安装空腔内；控制盒结构简单，大小功率和体积不同电机可通过采用统一规格大小的控制板及安装空腔，以实现零部件的标准化和通用化，既可以提高设计和生产效率，同时又可以降低成本和简化管理。
2)本发明的其它优点在实施例部分展开详细描述。
附图说明：
图1是现有的BLDC电机的立体图；
图2是现有的BLDC电机的结构剖视图；
图3是现有的BLDC电机的电机控制器的立体图；
图4是本发明实施例一提供的电机控制器的仰视图；
图5是电机控制器的俯视图；
图6是图5的A-A剖视图；
图7是电机控制器的一个角度***图；
图8是电机控制器中控制盒的俯视图；
图9是电机控制器中控制盒的一个角度立体图；
图10是电机控制器中控制盒的另一个角度立体图；
图11为本发明实施例一电机控制器的另一个角度***图；
图12为本发明实施例一电机控制器布置的电路图。
图13是本发明实施例二提供的BLDC电机的结构示意图；
图14是本发明实施例二提供的BLDC电机的***图。
具体实施方式：
下面通过具体实施例并结合附图对本发明作进一步详细的描述。
实施例一：
如图4至图12所示，本实施例提供的是一种电机控制器，包括控制盒和安装于控制盒里面的控制板，其所述控制盒的里面设有至少两个空腔，其中一个设为规格大小与控制板2相匹配的线路板安装空腔11，控制板2安装在线路板安装空腔11内。控制盒1结构简单，大小功率和体积不同电机可通过采用统一规格大小的控制板2及安装空腔11，以实现零部件的标准化和通用化，既可以提高设计和生产效率，同时又可以降低成本和简化管理。
上述所述线路板安装空腔11一侧或外侧设有一个整流桥安装空腔12，其中整流桥安装空腔12的第一底面120比线路板安装空腔11的第二底面110高出一段距离。结构布局合理。
上述所述控制板2上设置有整流桥21，整流桥21径向凸出在控制板2外，整流桥21紧贴安置在整流桥安装空腔12的第一底面120上且通过第一锁紧装置13锁紧。整流桥21安装方便，散热效果好。
上述所述控制盒1的底部在线路板安装空腔11***设有第二散热凸台16，第二散热凸台里面有若干通风孔161。第二散热凸台16和通风孔16加强了控制盒1内部的通风散热。
上述所述控制板2下方安装有IGBT驱动板3，IGBT驱动板3上安装有若干功率模块31，功率模块31径向凸出在IGBT驱动板3外，所述线路板安装空腔11的第二底面110的边缘向上凸出有若干散热凸台14，若干功率模块31紧贴在若干散热凸台14上并通过第二锁紧装置15锁紧。功率模块31安装方便，散热效果好。
上述所述通风孔161位于整流桥安装空腔12和散热凸台14旁。进一步加强了散热效果。
上述所述控制盒1的底部外表面设有若干散热筋17，所述通风孔161出口设置在相邻两个散热筋17之间。
上述所述控制盒1的若干散热筋17分为纵向散热筋171和横向散热筋172。散热筋17覆盖热源区域。
上述所述第一锁紧装置13包括第一压杆131和两个第一螺钉132，两个第一螺钉132分别安装在第一压杆131两端，第一压杆131压紧整流桥21，两个第一螺钉132固定在整流桥安装空腔12两侧。第一锁紧装置13结构简单，安装方便。线路板安装空腔11的***是圆筒体19。在线路板安装空腔11的边缘设置有若干支撑柱18，支撑柱18上设置螺钉孔，控制板2支承在支撑柱18上，用螺钉旋进螺钉孔锁紧控制板2。
上述所述第二锁紧装置15包括第二压杆151和第二螺钉152，第二压杆151压紧2个功率模块31并通过第二螺钉152锁紧在散热凸台14上，线路板安装空腔11的***是圆筒体19。第二锁紧装置15结构简单，安装方便。
图12中本发明的电机控制器布置有微处理器、转子位置检测电路、模拟信号检测电路、逆变电路、整理桥和电容C1，其中微处理器、模拟信号检测电路、整理桥和电容C1集成在控制板2，逆变电路的功率模块31集成在IGBT驱动板3，功率模块31是IGBT，转子位置检测电路单独集成在一块霍尔线路板上。
实施例二：
如图13、图14所示，本实施例提供的是一种BLDC电机，包括电机本体91和安装在电机本体91底部的电机控制器92，电机本体91包括定子组件、转子组件和电机外壳，其特征在于：所述电机控制器92为实施例一所述的电机控制器。
通过对电机控制器92的结构进行改良，加强了电机控制器92的散热效果，节省了生产成本。
以上实施例为本发明的较佳实施方式，但本发明的实施方式不限于此，其他任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化，均为等效的置换方式，都包含在本发明的保护范围之内。

Claims (11)

  1. 一种电机控制器，包括控制盒(1)和安装于控制盒(1)里面的控制板(2)，其特征在于：所述控制盒的里面设有至少两个空腔，其中一个设为规格大小与控制板(2)相匹配的线路板安装空腔(11)，控制板(2)安装在线路板安装空腔(11)内。
  2. 根据权利要求1所述的一种电机控制器，其特征在于：所述线路板安装空腔(11)一侧或外侧设有一个整流桥安装空腔(12)，其中整流桥安装空腔(12)的第一底面(120)比线路板安装空腔(11)的第二底面(110)高出一段距离。
  3. 根据权利要求2所述的一种电机控制器，其特征在于：所述控制板(2)上设置有整流桥(21)，整流桥(21)径向凸出在控制板(2)外，整流桥(21)紧贴安置在整流桥安装空腔(12)的第一底面(120)上且通过第一锁紧装置(13)锁紧。
  4. 根据权利要求1或2或3所述的一种电机控制器，其特征在于：所述控制盒(1)的底部在线路板安装空腔(11)***设有第二散热凸台(16)，第二散热凸台里面有若干通风孔(161)。
  5. 根据权利要求4所述的一种电机控制器，其特征在于：所述控制板(2)下方安装有IGBT驱动板(3)，IGBT驱动板(3)上安装有若干功率模块(31)，功率模块(31)径向凸出在IGBT驱动板(3)外，所述线路板安装空腔(11)的第二底面(110)的边缘向上凸出有若干散热凸台(14)，若干功率模块(31)紧贴在若干散热凸台(14)上并通过第二锁紧装置(15)锁紧。
  6. 根据权利要求5所述的一种电机控制器，其特征在于：所述通风孔(161)位于整流桥安装空腔(12)和散热凸台(14)旁。
  7. 根据权利要求6所述的一种电机控制器，其特征在于：所述控制盒(1)的底部外表面设有若干散热筋(17)，所述通风孔(161)出口设置在相邻两个散热筋(17)之间。
  8. 根据权利要求7所述的一种电机控制器，其特征在于：所述控制盒(1) 的若干散热筋(17)分为纵向散热筋(171)和横向散热筋(172)。
  9. 根据权利要求3所述的一种电机控制器，其特征在于：所述第一锁紧装置(13)包括第一压杆(131)和两个第一螺钉(132)，两个第一螺钉(132)分别安装在第一压杆(131)两端，第一压杆(131)压紧整流桥(21)，两个第一螺钉(132)固定在整流桥安装空腔(12)两侧。
  10. 根据权利要求5所述的一种电机控制器，其特征在于：所述第二锁紧装置(15)包括第二压杆(151)和第二螺钉(152)，第二压杆(151)压紧2个功率模块(31)并通过第二螺钉(152)锁紧在散热凸台(14)上，线路板安装空腔(11)的***是圆筒体(19)。
  11. 一种BLDC电机，包括电机本体(91)和安装在电机本体(91)底部的电机控制器(92)，电机本体(91)包括定子组件、转子组件和电机外壳，其特征在于：所述电机控制器(92)为权利要求1至10中任意一项所述的电机控制器。
PCT/CN2019/105367 2019-06-11 2019-09-11 一种电机控制器及其应用的bldc电机 WO2020248412A1 (zh)

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