WO2014131286A1 - Brushless dc motor structure - Google Patents
Brushless dc motor structure Download PDFInfo
- Publication number
- WO2014131286A1 WO2014131286A1 PCT/CN2013/085755 CN2013085755W WO2014131286A1 WO 2014131286 A1 WO2014131286 A1 WO 2014131286A1 CN 2013085755 W CN2013085755 W CN 2013085755W WO 2014131286 A1 WO2014131286 A1 WO 2014131286A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit board
- control circuit
- brushless
- assembly
- protective cover
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 claims description 36
- 238000004804 winding Methods 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 14
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004382 potting Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
Classifications
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
Definitions
- the utility model relates to a structure of a direct current brushless motor.
- control circuit board is directly mounted on the rear end cover, omitting the control box, of course, the size of the motor can be reduced, but the following technical problems exist:
- the traditional structure is to place the control circuit board inside the end cover. At this time, the control circuit board is away from the stator winding, and the circuit board and the stator winding are controlled by the lead wire and the connector.
- the lead wire and the connector occupy a large space, the wiring is long and troublesome. It is easy to make mistakes, has low reliability, and takes up a lot of space, which makes connection and installation of leads and connectors very difficult, low in production efficiency, and high in cost;
- a Hall detection circuit board is also required.
- the Hall detection circuit board also requires leads and connectors to be connected to the control circuit board, thereby further increasing the difficulty of connection and installation, and further increasing the cost. ;
- the traditional structure is to place the control circuit board inside the end cover. This structure is inconvenient to install and has poor processability.
- the purpose of the utility model is to provide a DC brushless motor structure, which is simple and compact, convenient to install, low in cost, high in reliability and good in production process.
- a brushless DC motor structure comprising a rotating shaft, a rotor assembly, a stator assembly, a control unit and a casing assembly, wherein the rotating shaft and the rotor assembly are mounted and coupled together, the rotor assembly is nested inside the stator assembly, and the casing assembly is installed outside the stator assembly ,
- the control unit includes a protective cover and a control circuit board, and the control circuit board Installed in a protective cover, the protective cover is mounted inside the housing assembly above the stator assembly.
- the control circuit board described above comprises a power circuit unit, a digital logic controller, a driving circuit unit, an IGBT inverter module and a detecting circuit unit, wherein the power circuit unit supplies power to each part of the circuit, and the detecting circuit unit detects the position signal of the rotor and The signal is sent to the digital logic controller for processing.
- the digital logic controller determines the signal and outputs it to the driving circuit unit.
- the driving circuit unit sends the driving signal to the IGBT inverter module, and the IGBT inverter module controls the opening and closing of the stator winding.
- the control circuit board described above comprises a power circuit unit, an I/O interface, a microprocessor, an IGBT inverter module and a detection circuit unit.
- the power circuit unit supplies power to each part of the circuit, and the microprocessor establishes with the outside world through the I/O interface.
- the communication circuit detects the position signal of the rotor and sends the signal to the microprocessor for processing.
- the microprocessor sends a control signal to the IGBT inverter module, and the IGBT inverter module controls the on/off of the stator winding.
- the control unit described above further includes a heat dissipation block
- the IGBT inverter module includes a plurality of IGBT components
- the IGBT component is mounted on the top surface of the control circuit board through a pin
- the heat dissipation block is located on one side of the protection cover, the heat dissipation block
- the inner side of the heat sink is attached to the inner wall of the casing assembly.
- the IGBT element described above is fixed to the heat sink by screwing, and the heat sink is fastened to the casing assembly by a screw lock.
- the protective cover is provided with a lower through hole in the middle thereof, and a dam is protruded around the protective cover and the lower through hole, and the rotating shaft passes through the lower through hole and is sleeved inside the dam, and the middle of the control circuit board is disposed
- the upper through hole is nested outside the dam.
- a Hall element is mounted on the bottom surface of the control circuit board as described above, and an induction magnetic ring is mounted on the top surface of the rotor assembly below the axial direction of the Hall element, and the Hall element is a patch Hall element.
- the center of the bottom surface of the protective cover described above forms a recessed boss, and the Hall element is mounted on the bottom surface of the control circuit board and attached to the top surface of the recessed boss.
- the top surface of the rotor assembly is provided with a groove, the bottom surface of the groove is provided with a plurality of strips, and the induction magnetic ring is provided with a card slot matched with the card strip.
- the induction magnetic ring is installed in the slot, the card strip card Into the card slot.
- the top surface of the stator assembly described above protrudes from a plurality of support bosses, and the protective cover supports the top surface of the support boss.
- the motor phase line insert protrudes from the control circuit board, the motor phase line insert passes through the bottom surface of the protection cover, a gap is formed in the middle of the support boss, and a connector is installed in the gap, and the motor phase line insert is nested in the
- the slot of the support boss is electrically connected to the connector, and the connector is electrically connected to the stator winding.
- the above-mentioned protective cover is filled with potting glue at the bottom, and the potting glue is covered on the control circuit board and some electronic components on the top surface of the control circuit board are potted.
- the utility model has the following effects: 1) The casing assembly is installed outside the stator assembly, the control unit includes a protective cover and a control circuit board, the control circuit board is installed in the protective cover, and the protective cover is mounted on the casing Inside the assembly, above the stator assembly, it brings the control circuit board closer to the stator windings, omitting the connectors and connecting leads connecting the control circuit board and the stator windings.
- the structure is simple, easy to install, compact, and highly reliable.
- Each motor is reduced by at least 5 yuan; 2)
- the motor phase line insert is extended on the control circuit board, the motor phase line insert passes through the bottom surface of the protective cover, a gap is formed in the middle of the support boss, and a connector is installed in the gap.
- the motor phase wire insert is nested in the gap of the support boss and is electrically connected with the connector, and the connector is electrically connected with the stator winding.
- the structure is single, reducing the connection lead and the connector, reducing the cost, and installing the cartridge; 3) controlling
- the bottom surface of the circuit board is directly mounted with a Hall element, and the inductive magnet is mounted on the top surface of the rotor assembly below the axial direction of the Hall element.
- the Hall element is a patch Hall element, which reduces lead wires and connectors between the control circuit board and the Hall element, and has a simple assembly process, low processability and low cost; 4) at the same time the bottom center of the protection cover Forming a recessed boss, the Hall element is mounted on the bottom surface of the control circuit board and attached to the top surface of the recessed boss, and the distance between the bottom surface of the protective cover and the Hall element is substantially reduced, so that the induction magnetic ring is closer to the Hall element.
- the sensing distance between the induction magnetic ring and the Hall element is reduced, and the reliability is high; 5) the heat dissipation block is located on one side of the protective cover, and the inner side of the heat dissipation block is closely attached to the IGBT component, and the outer side surface of the heat dissipation block is close to the inner wall of the casing assembly,
- the IGBT component is fixed to the heat sink by screwing, and the heat sink is fixed to the casing component by screw locking.
- the structure is simple, easy to install, and firm and reliable; 6) the lower through hole is arranged in the middle of the protective cover, and the circuit board is controlled.
- the upper through hole is arranged in the middle, and the upper through hole and the lower through hole are arranged to facilitate the passage of the rotating shaft, which is convenient for installation, and the yoke and the rotating shaft are protruded around the protective cover and the lower through hole. Pass through the lower through hole and fit inside the dam.
- the upper through hole is nested outside the dam to facilitate the installation of the control circuit board. The process is good.
- the top surface of the rotor assembly is provided with a groove, and the bottom surface of the groove is provided with a plurality of card strips, wherein the induction magnetic ring is provided with a card slot that cooperates with the card strip. When the induction magnet ring is installed in the slot, the card strip is snapped into the card slot, and the structure is single, and the induction magnet ring is mounted and secured. Not easy to loose.
- Figure 1 is a perspective view of the present invention.
- Figure 2 is an exploded view of the present invention.
- Figure 3 is a partial enlarged view of A-A of Figure 2.
- Figure 4 is a perspective view of an angle of the control unit of the present invention.
- Figure 5 is a perspective view of another angle of the control unit of the present invention.
- Figure 6 is a plan view of the present invention.
- Figure 7 is a cross-sectional view taken along line B-B of Figure 6.
- Figure 8 is a partial enlarged view of C-C in Figure 7.
- Figure 9 is a partial enlarged view of D-D in Figure 7.
- Figure 10 is a cross-sectional view taken along line E-E of Figure 6.
- Figure 1 1 is a partial enlarged view of F-F in Figure 10.
- Figure 12 is a circuit diagram of the control circuit board of the present invention.
- Figure 1 3 is another circuit diagram of the control circuit board of the present invention.
- the utility model relates to a brushless DC motor structure, comprising a rotating shaft 1, a rotor assembly 2, a stator assembly 3, a control unit 4 and a casing assembly 5, wherein the rotating shaft 1 and the rotor assembly 2 are mounted and coupled together, and the rotor assembly 2 is nested in Inside the stator assembly 3, the casing assembly 5 is mounted outside the stator assembly 3.
- the control unit 4 includes a protective cover 41 and a control circuit board 42.
- the control circuit board 42 is mounted in the protective cover 41.
- the protective cover 41 is mounted in the casing assembly 5. Located above the stator assembly 3.
- the control circuit board 42 includes a power circuit unit, a digital logic controller, a driving circuit unit, and an IGBT.
- the inverter module and the detecting circuit unit, the power circuit unit supplies power to each part of the circuit, the detecting circuit unit detects the position signal of the rotor and sends the signal to the digital logic controller for processing, and the digital logic controller determines the signal and outputs the signal to the driving circuit unit.
- the driving circuit unit sends the driving signal to the IGBT inverter module.
- the I GBT inverter module controls the on and off of the stator windings.
- the control circuit board 42 includes a power circuit unit, an I/O interface, a microprocessor, an IGBT inverter module, and a detection circuit unit.
- the power circuit unit supplies power to each part of the circuit, and the microprocessor establishes communication with the outside through the I/O interface.
- the circuit unit detects the position signal of the rotor and sends the signal to the microprocessor for processing.
- the microprocessor sends a control signal to the IGBT inverter module, and the IGBT inverter module controls the on/off of the stator winding.
- the control unit 4 further includes a heat dissipation block 43.
- the IGBT inverter module includes a plurality of IGBT elements 420.
- the IGBT element 420 is mounted on the top surface of the control circuit board 42 by pins, and the heat dissipation block 43 is located on one side of the protection cover 41.
- the inner side of the heat sink block 43 is in close contact with the IGBT element 420, and the outer side surface of the heat sink block 43 is adjacent to the inner wall of the casing assembly 5.
- the IGBT element 420 is fixed to the heat sink 43 by screws 61, and the heat sink 43 is fixed to the casing assembly 5 by screws 62.
- a lower through hole 410 is disposed in the middle of the protective cover 41.
- a dam 41 is protruded around the protective cover 41 and the lower through hole 410.
- the rotating shaft 1 passes through the lower through hole 410 and fits inside the dam 411 to control the circuit board.
- An upper through hole 420 is provided in the middle of the 42, and the upper through hole 420 is nested outside the dam 411.
- a Hall element 7 is mounted on the bottom surface of the control circuit board 42, and an induction magnetic ring 8 is mounted on the top surface of the rotor assembly 2 below the axial direction of the Hall element 7, and the Hall element 7 is a patch Element.
- the center of the bottom surface of the protective cover 41 is formed with a recessed boss 412, and the Hall element 7 is mounted on the bottom surface of the control circuit board 42 and attached to the top surface of the recessed boss 412.
- the top surface of the rotor assembly 2 is provided with a groove 21, the bottom surface of the groove 21 is provided with a plurality of strips 210, and the induction magnetic ring 8 is provided with a card slot 81 for engaging with the strip 210, when the induction magnet ring 8 is mounted in the groove At 21 o'clock, the card strip 210 is snapped into the card slot 81.
- a plurality of support bosses 31 are protruded from the top surface of the stator assembly 3, and the protective cover 41 is supported and mounted on the top surface of the support boss 31.
- a motor phase wire insert 421 protrudes from the control circuit board 42, the motor phase wire insert 421 passes through the bottom surface of the protective cover 41, a gap 31 0 is formed in the middle of the support boss 31, and a connector 31 1 is mounted in the slit 31 0 .
- the phase wire tab 421 is nested in the slot 31 0 of the support boss 31 and electrically connected to the connector 31 1 , and the connector 31 1 is electrically connected to the end wire end ( 340 ) of the stator winding 34 .
- the potting cover 41 is cast with a potting glue, and the potting glue covers the control circuit board 42 and pots some electronic components on the top surface of the control circuit board 42.
- the stator assembly 3 includes a stator core 32, an end insulation 33, and a stator winding 34.
- the end insulation 33 is mounted on the end face of the stator core 32, and the stator winding 34 is wound around the stator core 32.
- the casing assembly 5 includes a cylindrical casing 51 and end caps 52 mounted at both ends of the cylindrical casing 51.
- the principle of the present invention is: the rotating shaft 1 and the rotor assembly 2 are mounted and coupled together, the rotor assembly 2 is nested inside the stator assembly 3, the casing assembly 5 is mounted outside the stator assembly 3, and the control circuit board 42 is mounted in the protective cover 41.
- the protective cover 41 is mounted on the inside of the casing assembly 5 and located on the stator assembly 3.
- the structure is simple and compact, convenient to install, low in cost, high in reliability, and good in production process.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
A brushless DC motor structure comprises a rotating shaft (1), a rotor assembly (2), a stator assembly (3), a control unit (4), and a casing assembly (5). The rotating shaft (1) and the rotor assembly (2) are connected together in mounting. The rotor assembly (2) is nested in the stator assembly (3). The casing assembly (5) is mounted on the outer surface of the stator assembly (3). The control unit (4) comprises a protection cover (41) and a control circuit board (42). The control circuit board (42) is mounted in the protection cover (41). The protection cover (41) is mounted in the casing assembly (5) and is located above the stator assembly (3). The structure is simple and compact, convenient in mounting, low in cost, high in reliability, and good in a production process.
Description
一种直流无刷电机结构 DC brushless motor structure
技术领域: Technical field:
本实用新型涉及一种直流无刷电机结构。 The utility model relates to a structure of a direct current brushless motor.
背景技术: Background technique:
传统的小功率的直流无刷电机结构(例如冰箱用的电机), 控制线路板安装 在后端盖上或者单独的控制盒里, 由于应用设备留给电机的空间较小, 所以要 求电机体积较小, 如果电机单独设置带控制线路板的控制盒, 势必导致体积较 大, 结构不够紧凑, 很难符合安装要求; Conventional low-power DC brushless motor structure (such as the motor for refrigerator), the control circuit board is installed on the rear cover or in a separate control box. Because the space left by the application equipment to the motor is small, the motor volume is required. Small, if the motor separately sets the control box with the control circuit board, it will inevitably lead to a larger volume, the structure is not compact enough, and it is difficult to meet the installation requirements;
若果将控制线路板直接安装在后端盖上, 省略控制盒, 当然可以减少电机 的体积, 但又存在如下技术问题: If the control circuit board is directly mounted on the rear end cover, omitting the control box, of course, the size of the motor can be reduced, but the following technical problems exist:
1、 传统结构都是将控制线路板放在端盖内部, 这时控制线路板远离定子绕 组, 通过引线和接插件连接控制线路板和定子绕组, 引线和接插件占用空间大, 接线长而且麻烦、 容易出错、 可靠性低, 占用空间大, 导致引线和接插件的连 接安装都非常困难, 生产效率低, 且成本高; 1. The traditional structure is to place the control circuit board inside the end cover. At this time, the control circuit board is away from the stator winding, and the circuit board and the stator winding are controlled by the lead wire and the connector. The lead wire and the connector occupy a large space, the wiring is long and troublesome. It is easy to make mistakes, has low reliability, and takes up a lot of space, which makes connection and installation of leads and connectors very difficult, low in production efficiency, and high in cost;
2、 如果需要霍尔元件来检测转子位置, 还需要一个霍尔检测线路板, 霍尔 检测线路板也需要引线和接插件连接到控制电路板上, 从而进一步增加连接安 装的难度, 成本进一步增加; 2. If a Hall element is required to detect the rotor position, a Hall detection circuit board is also required. The Hall detection circuit board also requires leads and connectors to be connected to the control circuit board, thereby further increasing the difficulty of connection and installation, and further increasing the cost. ;
3、 传统结构都是将控制线路板放在端盖内部, 这种结构安装不方便、 工艺 性差。 3. The traditional structure is to place the control circuit board inside the end cover. This structure is inconvenient to install and has poor processability.
发明内容: Summary of the invention:
本实用新型的目的是提供一种直流无刷电机结构, 该结构筒单、 紧凑, 安 装方便、 成本低廉、 可靠性高、 生产工艺性好。 The purpose of the utility model is to provide a DC brushless motor structure, which is simple and compact, convenient to install, low in cost, high in reliability and good in production process.
本实用新型的目的是通过下述技术方案予以实现的。 The object of the present invention is achieved by the following technical solutions.
一种直流无刷电机结构, 包括转轴、 转子组件、 定子组件、 控制单元和机 壳组件, 转轴和转子组件安装连接在一起, 转子组件嵌套在定子组件里面, 机 壳组件安装在定子组件外面, 控制单元包括保护罩和控制线路板, 控制线路板
安装在保护罩里, 保护罩安装在机壳组件里面、 位于定子组件的上方。 A brushless DC motor structure, comprising a rotating shaft, a rotor assembly, a stator assembly, a control unit and a casing assembly, wherein the rotating shaft and the rotor assembly are mounted and coupled together, the rotor assembly is nested inside the stator assembly, and the casing assembly is installed outside the stator assembly , the control unit includes a protective cover and a control circuit board, and the control circuit board Installed in a protective cover, the protective cover is mounted inside the housing assembly above the stator assembly.
上述所述的控制线路板包括电源电路单元、 数字逻辑控制器、 驱动电路单 元、 IGBT逆变模块和检测电路单元, 电源电路单元为各部分电路供电, 检测电 路单元检测转子的位置信号并将该信号送到数字逻辑控制器处理, 数字逻辑控 制器判断信号后输出到驱动电路单元, 驱动电路单元把驱动信号输送到 IGBT逆 变模块, IGBT逆变模块控制定子绕组的通断电。 The control circuit board described above comprises a power circuit unit, a digital logic controller, a driving circuit unit, an IGBT inverter module and a detecting circuit unit, wherein the power circuit unit supplies power to each part of the circuit, and the detecting circuit unit detects the position signal of the rotor and The signal is sent to the digital logic controller for processing. The digital logic controller determines the signal and outputs it to the driving circuit unit. The driving circuit unit sends the driving signal to the IGBT inverter module, and the IGBT inverter module controls the opening and closing of the stator winding.
上述所述的控制线路板包括电源电路单元、 I/O接口、 微处理器、 IGBT逆 变模块和检测电路单元, 电源电路单元为各部分电路供电, 微处理器通过 I/O 接口与外界建立通信, 检测电路单元检测转子的位置信号并将该信号送到微处 理器处理, 微处理器向 IGBT逆变模块发送控制信号, IGBT逆变模块控制定子绕 组的通断电。 The control circuit board described above comprises a power circuit unit, an I/O interface, a microprocessor, an IGBT inverter module and a detection circuit unit. The power circuit unit supplies power to each part of the circuit, and the microprocessor establishes with the outside world through the I/O interface. The communication circuit detects the position signal of the rotor and sends the signal to the microprocessor for processing. The microprocessor sends a control signal to the IGBT inverter module, and the IGBT inverter module controls the on/off of the stator winding.
上述所述的控制单元还包括散热块,所述的 IGBT逆变模块包括若干个 IGBT 元件, IGBT元件通过引脚安装在控制线路板的顶面上, 散热块位于保护罩一侧 边, 散热块的内侧面贴紧 IGBT元件, 散热块的外侧面贴近机壳组件内壁上。 The control unit described above further includes a heat dissipation block, the IGBT inverter module includes a plurality of IGBT components, and the IGBT component is mounted on the top surface of the control circuit board through a pin, and the heat dissipation block is located on one side of the protection cover, the heat dissipation block The inner side of the heat sink is attached to the inner wall of the casing assembly.
上述所述的 IGBT元件通过螺釘锁紧固定在散热器, 散热器通过螺釘锁紧固 定在机壳组件。 The IGBT element described above is fixed to the heat sink by screwing, and the heat sink is fastened to the casing assembly by a screw lock.
上述所述的保护罩的中间设置有下通孔, 在保护罩上、 下通孔的周围伸出 挡圏, 转轴从下通孔穿过并套在挡圏里面, 控制线路板的中间设置有上通孔, 上通孔嵌套在挡圏外面。 The protective cover is provided with a lower through hole in the middle thereof, and a dam is protruded around the protective cover and the lower through hole, and the rotating shaft passes through the lower through hole and is sleeved inside the dam, and the middle of the control circuit board is disposed The upper through hole is nested outside the dam.
上述所述的控制线路板的底面安装有霍尔元件, 在霍尔元件轴向方向的下 方、 转子组件的顶面上安装有感应磁环, 所述的霍尔元件是贴片霍尔元件。 A Hall element is mounted on the bottom surface of the control circuit board as described above, and an induction magnetic ring is mounted on the top surface of the rotor assembly below the axial direction of the Hall element, and the Hall element is a patch Hall element.
上述所述的保护罩的底面中心形成凹陷凸台, 霍尔元件安装在控制线路板 的底面、 贴在凹陷凸台的顶面上。 The center of the bottom surface of the protective cover described above forms a recessed boss, and the Hall element is mounted on the bottom surface of the control circuit board and attached to the top surface of the recessed boss.
上述所述的转子组件的顶面设置凹槽, 凹槽的底面设置有若干个卡条, 在 感应磁环设置有与卡条配合的卡槽, 当感应磁环安装在 槽时, 卡条卡入卡槽 里。
上述所述的定子组件顶面伸出若干支承凸台, 保护罩支承安装在支承凸台 的顶面上。 The top surface of the rotor assembly is provided with a groove, the bottom surface of the groove is provided with a plurality of strips, and the induction magnetic ring is provided with a card slot matched with the card strip. When the induction magnetic ring is installed in the slot, the card strip card Into the card slot. The top surface of the stator assembly described above protrudes from a plurality of support bosses, and the protective cover supports the top surface of the support boss.
上述所述的控制线路板上伸出有电机相线插片, 电机相线插片穿过保护罩 底面, 支承凸台中间形成缝隙, 缝隙里安装有接插件, 电机相线插片嵌套在支 承凸台的缝隙里与接插件电连接, 接插件与定子绕组电连接。 The motor phase line insert protrudes from the control circuit board, the motor phase line insert passes through the bottom surface of the protection cover, a gap is formed in the middle of the support boss, and a connector is installed in the gap, and the motor phase line insert is nested in the The slot of the support boss is electrically connected to the connector, and the connector is electrically connected to the stator winding.
上述所述的保护罩底部浇注灌封胶, 灌封胶覆盖在控制电路板上并将控制 线路板顶面上部分电子元器件灌封住。 The above-mentioned protective cover is filled with potting glue at the bottom, and the potting glue is covered on the control circuit board and some electronic components on the top surface of the control circuit board are potted.
本实用新型与现有技术相比, 具有如下效果: 1 )机壳组件安装在定子组件 外面, 控制单元包括保护罩和控制线路板, 控制线路板安装在保护罩里, 保护 罩安装在机壳组件里面、 位于定子组件的上方, 它使到控制线路板更加贴近定 子绕组,省略了连接控制线路板与定子绕组的接插件和连接引线, 该结构筒单、 安装方便、 结构紧凑、 可靠性高, 每台电机至少降低 5元成本; 2 )控制线路板 上伸出有电机相线插片, 电机相线插片穿过保护罩底面, 支承凸台中间形成缝 隙, 缝隙里安装有接插件, 电机相线插片嵌套在支承凸台的缝隙里与接插件电 连接, 接插件与定子绕组电连接, 该结构筒单, 减少连接引线和接插件, 降低 成本, 安装筒便; 3 )控制线路板的底面直接安装有霍尔元件, 在霍尔元件轴向 方向的下方、 转子组件的顶面上安装有感应磁环, 所述的霍尔元件是贴片霍尔 元件, 减少控制线路板与霍尔元件之间的引线和接插件, 装配筒单、 工艺性好、 成本更加低; 4 ) 同时保护罩的底面中心形成凹陷凸台, 霍尔元件安装在控制线 路板的底面、 贴在凹陷凸台的顶面上, 相当缩小保护罩的底面与霍尔元件的距 离, 从而使感应磁环更加靠近霍尔元件, 即减少感应磁环与霍尔元件的感应距 离, 可靠性高; 5 )散热块位于保护罩一侧边, 散热块的内侧面贴紧 IGBT元件, 散热块的外侧面贴近机壳组件内壁上, IGBT元件通过螺釘锁紧固定在散热器, 散热器通过螺釘锁紧固定在机壳组件, 该结构筒单, 安装方便, 牢固可靠; 6 ) 保护罩的中间设置有下通孔, 控制线路板的中间设置有上通孔, 设置上通孔、 下通孔方便转轴穿过, 方便安装, 在保护罩上、 下通孔的周围伸出挡圏, 转轴
从下通孔穿过并套在挡圏里面, 上通孔嵌套在挡圏外面, 方便安装控制线路板, 工艺性好; 7 )转子组件的顶面设置凹槽, 凹槽的底面设置有若干个卡条, 在感 应磁环设置有与卡条配合的卡槽, 当感应磁环安装在 槽时, 卡条卡入卡槽里, 该结构筒单, 安装感应磁环筒单、 牢固、 不易松脱。 Compared with the prior art, the utility model has the following effects: 1) The casing assembly is installed outside the stator assembly, the control unit includes a protective cover and a control circuit board, the control circuit board is installed in the protective cover, and the protective cover is mounted on the casing Inside the assembly, above the stator assembly, it brings the control circuit board closer to the stator windings, omitting the connectors and connecting leads connecting the control circuit board and the stator windings. The structure is simple, easy to install, compact, and highly reliable. Each motor is reduced by at least 5 yuan; 2) The motor phase line insert is extended on the control circuit board, the motor phase line insert passes through the bottom surface of the protective cover, a gap is formed in the middle of the support boss, and a connector is installed in the gap. The motor phase wire insert is nested in the gap of the support boss and is electrically connected with the connector, and the connector is electrically connected with the stator winding. The structure is single, reducing the connection lead and the connector, reducing the cost, and installing the cartridge; 3) controlling The bottom surface of the circuit board is directly mounted with a Hall element, and the inductive magnet is mounted on the top surface of the rotor assembly below the axial direction of the Hall element. The Hall element is a patch Hall element, which reduces lead wires and connectors between the control circuit board and the Hall element, and has a simple assembly process, low processability and low cost; 4) at the same time the bottom center of the protection cover Forming a recessed boss, the Hall element is mounted on the bottom surface of the control circuit board and attached to the top surface of the recessed boss, and the distance between the bottom surface of the protective cover and the Hall element is substantially reduced, so that the induction magnetic ring is closer to the Hall element. That is, the sensing distance between the induction magnetic ring and the Hall element is reduced, and the reliability is high; 5) the heat dissipation block is located on one side of the protective cover, and the inner side of the heat dissipation block is closely attached to the IGBT component, and the outer side surface of the heat dissipation block is close to the inner wall of the casing assembly, The IGBT component is fixed to the heat sink by screwing, and the heat sink is fixed to the casing component by screw locking. The structure is simple, easy to install, and firm and reliable; 6) the lower through hole is arranged in the middle of the protective cover, and the circuit board is controlled. The upper through hole is arranged in the middle, and the upper through hole and the lower through hole are arranged to facilitate the passage of the rotating shaft, which is convenient for installation, and the yoke and the rotating shaft are protruded around the protective cover and the lower through hole. Pass through the lower through hole and fit inside the dam. The upper through hole is nested outside the dam to facilitate the installation of the control circuit board. The process is good. 7) The top surface of the rotor assembly is provided with a groove, and the bottom surface of the groove is provided with a plurality of card strips, wherein the induction magnetic ring is provided with a card slot that cooperates with the card strip. When the induction magnet ring is installed in the slot, the card strip is snapped into the card slot, and the structure is single, and the induction magnet ring is mounted and secured. Not easy to loose.
附图说明: BRIEF DESCRIPTION OF THE DRAWINGS:
图 1 是本实用新型的立体图。 Figure 1 is a perspective view of the present invention.
图 2 是本实用新型的分解图。 Figure 2 is an exploded view of the present invention.
图 3 是图 2的 A-A局部放大图。 Figure 3 is a partial enlarged view of A-A of Figure 2.
图 4 是本实用新型控制单元一个角度的立体图。 Figure 4 is a perspective view of an angle of the control unit of the present invention.
图 5 是本实用新型控制单元另一个角度的立体图。 Figure 5 is a perspective view of another angle of the control unit of the present invention.
图 6 是本实用新型的俯视图。 Figure 6 is a plan view of the present invention.
图 7 是图 6的 B-B剖视图。 Figure 7 is a cross-sectional view taken along line B-B of Figure 6.
图 8 是图 7中 C-C局部放大图。 Figure 8 is a partial enlarged view of C-C in Figure 7.
图 9 是图 7中 D-D局部放大图。 Figure 9 is a partial enlarged view of D-D in Figure 7.
图 1 0 是图 6的 E-E剖视图。 Figure 10 is a cross-sectional view taken along line E-E of Figure 6.
图 1 1 是图 1 0中 F-F局部放大图。 Figure 1 1 is a partial enlarged view of F-F in Figure 10.
图 12 是本实用新型控制线路板的一个电路图。 Figure 12 is a circuit diagram of the control circuit board of the present invention.
图 1 3 是本实用新型控制线路板的另一个电路图。 Figure 1 3 is another circuit diagram of the control circuit board of the present invention.
具体实施方式: detailed description:
下面通过具体实施例并结合附图对本实用新型作进一步详细的描述。 The present invention will be further described in detail below through the specific embodiments and the accompanying drawings.
本实用新型是一种直流无刷电机结构, 包括转轴 1、 转子组件 2、 定子组件 3、 控制单元 4和机壳组件 5 , 转轴 1和转子组件 2安装连接在一起, 转子组件 2嵌套在定子组件 3里面, 机壳组件 5安装在定子组件 3外面, 控制单元 4包括 保护罩 41和控制线路板 42 , 控制线路板 42安装在保护罩 41里, 保护罩 41安 装在机壳组件 5里面、 位于定子组件 3的上方。 The utility model relates to a brushless DC motor structure, comprising a rotating shaft 1, a rotor assembly 2, a stator assembly 3, a control unit 4 and a casing assembly 5, wherein the rotating shaft 1 and the rotor assembly 2 are mounted and coupled together, and the rotor assembly 2 is nested in Inside the stator assembly 3, the casing assembly 5 is mounted outside the stator assembly 3. The control unit 4 includes a protective cover 41 and a control circuit board 42. The control circuit board 42 is mounted in the protective cover 41. The protective cover 41 is mounted in the casing assembly 5. Located above the stator assembly 3.
控制线路板 42包括电源电路单元、 数字逻辑控制器、 驱动电路单元、 IGBT
逆变模块和检测电路单元, 电源电路单元为各部分电路供电, 检测电路单元检 测转子的位置信号并将该信号送到数字逻辑控制器处理, 数字逻辑控制器判断 信号后输出到驱动电路单元, 驱动电路单元把驱动信号输送到 IGBT逆变模块,The control circuit board 42 includes a power circuit unit, a digital logic controller, a driving circuit unit, and an IGBT. The inverter module and the detecting circuit unit, the power circuit unit supplies power to each part of the circuit, the detecting circuit unit detects the position signal of the rotor and sends the signal to the digital logic controller for processing, and the digital logic controller determines the signal and outputs the signal to the driving circuit unit. The driving circuit unit sends the driving signal to the IGBT inverter module.
I GBT逆变模块控制定子绕组的通断电。 The I GBT inverter module controls the on and off of the stator windings.
控制线路板 42包括电源电路单元、 I /O接口、 微处理器、 IGBT逆变模块和 检测电路单元, 电源电路单元为各部分电路供电, 微处理器通过 I/O接口与外 界建立通信, 检测电路单元检测转子的位置信号并将该信号送到微处理器处理, 微处理器向 IGBT逆变模块发送控制信号, IGBT逆变模块控制定子绕组的通断电。 The control circuit board 42 includes a power circuit unit, an I/O interface, a microprocessor, an IGBT inverter module, and a detection circuit unit. The power circuit unit supplies power to each part of the circuit, and the microprocessor establishes communication with the outside through the I/O interface. The circuit unit detects the position signal of the rotor and sends the signal to the microprocessor for processing. The microprocessor sends a control signal to the IGBT inverter module, and the IGBT inverter module controls the on/off of the stator winding.
控制单元 4还包括散热块 43 , 所述的 IGBT逆变模块包括若干个 IGBT元件 420 , IGBT元件 420通过引脚安装在控制线路板 42的顶面上,散热块 43位于保 护罩 41一侧边,散热块 43的内侧面贴紧 IGBT元件 420 ,散热块 43的外侧面贴 近机壳组件 5内壁上。 The control unit 4 further includes a heat dissipation block 43. The IGBT inverter module includes a plurality of IGBT elements 420. The IGBT element 420 is mounted on the top surface of the control circuit board 42 by pins, and the heat dissipation block 43 is located on one side of the protection cover 41. The inner side of the heat sink block 43 is in close contact with the IGBT element 420, and the outer side surface of the heat sink block 43 is adjacent to the inner wall of the casing assembly 5.
IGBT元件 420通过螺釘 61锁紧固定在散热器 43 , 散热器 43通过螺釘 62 锁紧固定在机壳组件 5。 The IGBT element 420 is fixed to the heat sink 43 by screws 61, and the heat sink 43 is fixed to the casing assembly 5 by screws 62.
保护罩 41的中间设置有下通孔 410 , 在保护罩 41上、 下通孔 410的周围伸 出挡圏 41 , 转轴 1从下通孔 410穿过并套在挡圏 411里面, 控制线路板 42的中 间设置有上通孔 420 , 上通孔 420嵌套在挡圏 411外面。 A lower through hole 410 is disposed in the middle of the protective cover 41. A dam 41 is protruded around the protective cover 41 and the lower through hole 410. The rotating shaft 1 passes through the lower through hole 410 and fits inside the dam 411 to control the circuit board. An upper through hole 420 is provided in the middle of the 42, and the upper through hole 420 is nested outside the dam 411.
在控制线路板 42的底面安装有霍尔元件 7 ,在霍尔元件 7轴向方向的下方、 转子组件 2的顶面上安装有感应磁环 8 , 所述的霍尔元件 7是贴片霍尔元件。 A Hall element 7 is mounted on the bottom surface of the control circuit board 42, and an induction magnetic ring 8 is mounted on the top surface of the rotor assembly 2 below the axial direction of the Hall element 7, and the Hall element 7 is a patch Element.
保护罩 41的底面中心形成凹陷凸台 412 , 霍尔元件 7安装在控制线路板 42 的底面、 贴在凹陷凸台 412的顶面上。 The center of the bottom surface of the protective cover 41 is formed with a recessed boss 412, and the Hall element 7 is mounted on the bottom surface of the control circuit board 42 and attached to the top surface of the recessed boss 412.
转子组件 2的顶面设置凹槽 21 , 凹槽 21的底面设置有若干个卡条 210 , 在 感应磁环 8设置有与卡条 210配合的卡槽 81 , 当感应磁环 8安装在凹槽 21时, 卡条 210卡入卡槽 81里。 The top surface of the rotor assembly 2 is provided with a groove 21, the bottom surface of the groove 21 is provided with a plurality of strips 210, and the induction magnetic ring 8 is provided with a card slot 81 for engaging with the strip 210, when the induction magnet ring 8 is mounted in the groove At 21 o'clock, the card strip 210 is snapped into the card slot 81.
定子组件 3顶面伸出若干支承凸台 31 , 保护罩 41支承安装在支承凸台 31 的顶面上。
控制线路板 42上伸出有电机相线插片 421 , 电机相线插片 421穿过保护罩 41底面, 支承凸台 31中间形成缝隙 31 0 , 缝隙里 31 0安装有接插件 31 1 , 电机 相线插片 421嵌套在支承凸台 31的缝隙 31 0里与接插件 31 1电连接,接插件 31 1 与定子绕组 34的端部线头 ( 340 ) 电连接。 A plurality of support bosses 31 are protruded from the top surface of the stator assembly 3, and the protective cover 41 is supported and mounted on the top surface of the support boss 31. A motor phase wire insert 421 protrudes from the control circuit board 42, the motor phase wire insert 421 passes through the bottom surface of the protective cover 41, a gap 31 0 is formed in the middle of the support boss 31, and a connector 31 1 is mounted in the slit 31 0 . The phase wire tab 421 is nested in the slot 31 0 of the support boss 31 and electrically connected to the connector 31 1 , and the connector 31 1 is electrically connected to the end wire end ( 340 ) of the stator winding 34 .
保护罩 41底部浇注灌封胶, 灌封胶覆盖在控制电路板 42上并将控制线路 板 42顶面上部分电子元器件灌封住。 The potting cover 41 is cast with a potting glue, and the potting glue covers the control circuit board 42 and pots some electronic components on the top surface of the control circuit board 42.
定子组件 3包括定子铁芯 32、 端部绝缘 33和定子绕组 34 , 端部绝缘 33安 装在定子铁芯 32的端面上, 定子绕组 34卷绕在定子铁芯 32上。 The stator assembly 3 includes a stator core 32, an end insulation 33, and a stator winding 34. The end insulation 33 is mounted on the end face of the stator core 32, and the stator winding 34 is wound around the stator core 32.
机壳组件 5包括圓筒形壳体 51和安装在圓筒形壳体 51两端的端盖 52。 本实用新型的原理是: 转轴 1和转子组件 2安装连接在一起, 转子组件 2 嵌套在定子组件 3里面, 机壳组件 5安装在定子组件 3外面, 控制线路板 42安 装在保护罩 41里, 保护罩 41安装在机壳组件 5里面、 位于定子组件 3的上, 该结构筒单、 紧凑, 安装方便、 成本低廉、 可靠性高、 生产工艺性好。
The casing assembly 5 includes a cylindrical casing 51 and end caps 52 mounted at both ends of the cylindrical casing 51. The principle of the present invention is: the rotating shaft 1 and the rotor assembly 2 are mounted and coupled together, the rotor assembly 2 is nested inside the stator assembly 3, the casing assembly 5 is mounted outside the stator assembly 3, and the control circuit board 42 is mounted in the protective cover 41. The protective cover 41 is mounted on the inside of the casing assembly 5 and located on the stator assembly 3. The structure is simple and compact, convenient to install, low in cost, high in reliability, and good in production process.
Claims
1、 一种直流无刷电机结构, 包括转轴(1 )、 转子组件(2)、 定子组件(3)、 控制单元(4)和机壳组件(5) , 转轴( 1 )和转子组件( 2)安装连接在一起, 转子 组件(2)嵌套在定子组件(3)里面, 机壳组件(5)安装在定子组件(3)外面, 其特 征在于: 控制单元(4)包括保护罩(41)和控制线路板 (42) , 控制线路板 (42)安装 在保护罩(41)里, 保护罩(41)安装在机壳组件(5)里面、 位于定子组件(3)的上 方。 1. A brushless DC motor structure, including a rotating shaft (1), a rotor assembly (2), a stator assembly (3), a control unit (4) and a casing assembly (5). The rotating shaft (1) and the rotor assembly (2 ) are installed and connected together, the rotor assembly (2) is nested inside the stator assembly (3), and the casing assembly (5) is installed outside the stator assembly (3). It is characterized in that: the control unit (4) includes a protective cover (41 ) and the control circuit board (42), the control circuit board (42) is installed in the protective cover (41), and the protective cover (41) is installed inside the casing assembly (5) and located above the stator assembly (3).
2、 根据权利要求 1所述的一种直流无刷电机结构, 其特征在于: 控制线路 板(42)包括电源电路单元、 数字逻辑控制器、 驱动电路单元、 IGBT逆变模块和 检测电路单元, 电源电路单元为各部分电路供电, 检测电路单元检测转子的位 置信号并将该信号送到数字逻辑控制器处理, 数字逻辑控制器判断信号后输出 到驱动电路单元, 驱动电路单元把驱动信号输送到 IGBT逆变模块, IGBT逆变模 块控制定子绕组的通断电。 2. A brushless DC motor structure according to claim 1, characterized in that: the control circuit board (42) includes a power circuit unit, a digital logic controller, a drive circuit unit, an IGBT inverter module and a detection circuit unit, The power circuit unit supplies power to each part of the circuit. The detection circuit unit detects the position signal of the rotor and sends the signal to the digital logic controller for processing. The digital logic controller determines the signal and outputs it to the drive circuit unit. The drive circuit unit transmits the drive signal to IGBT inverter module, the IGBT inverter module controls the power on and off of the stator winding.
3、 根据权利要求 1所述的一种直流无刷电机结构, 其特征在于: 控制线路 板(42)包括电源电路单元、 I/O接口、 微处理器、 IGBT逆变模块和检测电路单 元, 电源电路单元为各部分电路供电, 微处理器通过 I/O接口与外界建立通信, 检测电路单元检测转子的位置信号并将该信号送到微处理器处理, 微处理器向 IGBT逆变模块发送控制信号, IGBT逆变模块控制定子绕组的通断电。 3. A brushless DC motor structure according to claim 1, characterized in that: the control circuit board (42) includes a power circuit unit, an I/O interface, a microprocessor, an IGBT inverter module and a detection circuit unit, The power circuit unit supplies power to each part of the circuit. The microprocessor establishes communication with the outside world through the I/O interface. The detection circuit unit detects the position signal of the rotor and sends the signal to the microprocessor for processing. The microprocessor sends the signal to the IGBT inverter module. Control signal, IGBT inverter module controls the power on and off of the stator winding.
4、 根据权利要求 2或 3所述的一种直流无刷电机结构, 其特征在于: 控制 单元(4)还包括散热块(43) , 所述的 IGBT逆变模块包括若干个 IGBT元件(420) , IGBT元件(420)通过引脚安装在控制线路板 (42)的顶面上,散热块(43)位于保护 罩(41)一侧边, 散热块(43)的内侧面贴紧 IGBT元件(420) , 散热块(43)的外侧 面贴近机壳组件(5)内壁上。 4. A brushless DC motor structure according to claim 2 or 3, characterized in that: the control unit (4) also includes a heat dissipation block (43), and the IGBT inverter module includes several IGBT components (420 ), the IGBT component (420) is installed on the top surface of the control circuit board (42) through pins, the heat sink block (43) is located on one side of the protective cover (41), and the inner side of the heat sink block (43) is close to the IGBT component (420), the outer side of the heat sink (43) is close to the inner wall of the chassis assembly (5).
5、 根据权利要求 4所述的一种直流无刷电机结构, 其特征在于: IGBT元件 (420)通过螺釘(61 )锁紧固定在散热块(43) , 散热器(43)通过螺釘(62 )锁紧 固定在机壳组件(5)。
5. A DC brushless motor structure according to claim 4, characterized in that: the IGBT element (420) is locked and fixed on the heat sink (43) through screws (61), and the radiator (43) is fixed on the heat sink (43) through screws (62) ) is locked and fixed on the casing assembly (5).
6、 根据权利要求 1或 2或 3所述的一种直流无刷电机结构, 其特征在于: 保护罩(41)的中间设置有下通孔(410) , 在保护罩(41)上、 下通孔(410)的周围 伸出挡圏(411) , 转轴(1)从下通孔(410)穿过并套在挡圏(411)里面, 控制线路 板 (42)的中间设置有上通孔 (420) , 上通孔 (420)嵌套在挡圏(41 1)外面。 6. A brushless DC motor structure according to claim 1 or 2 or 3, characterized in that: a lower through hole (410) is provided in the middle of the protective cover (41), above and below the protective cover (41) A retaining ring (411) extends around the through hole (410), the rotating shaft (1) passes through the lower through hole (410) and is placed inside the retaining ring (411), and an upper pass is provided in the middle of the control circuit board (42) hole (420), and the upper through hole (420) is nested outside the retaining ring (411).
7、 根据权利要求 1或 2或 3所述的一种直流无刷电机结构, 其特征在于: 在控制线路板(42)的底面安装有霍尔元件(7) ,在霍尔元件(7 )轴向方向的下方、 转子组件 (2)的顶面上安装有感应磁环 (8 ), 所述的霍尔元件(7 )是贴片霍尔 元件。 7. A DC brushless motor structure according to claim 1 or 2 or 3, characterized in that: a Hall element (7) is installed on the bottom surface of the control circuit board (42), and the Hall element (7) is installed on the bottom surface of the control circuit board (42). An induction magnetic ring (8) is installed below the axial direction and on the top surface of the rotor assembly (2), and the Hall element (7) is a patch Hall element.
8、根据权利要求 6所述的一种直流无刷电机结构,其特征在于:保护罩(41) 的底面中心形成凹陷凸台 (412 ), 霍尔元件(7)安装在控制线路板(42)的底面、 贴在凹陷凸台 (412 ) 的顶面上。 8. A brushless DC motor structure according to claim 6, characterized in that: a concave boss (412) is formed in the center of the bottom surface of the protective cover (41), and the Hall element (7) is installed on the control circuit board (42) ) is attached to the top surface of the recessed boss (412).
9、 根据权利要求 8所述的一种直流无刷电机结构, 其特征在于: 转子组件 ( 2)的顶面设置凹槽(21 ), 凹槽 1 ) 的底面设置有若干个卡条(210 ), 在感 应磁环(8 )设置有与卡条(210 ) 配合的卡槽(81) , 当感应磁环(8 )安装在凹 槽(21 ) 时, 卡条(210 )卡入卡槽(81)里。 9. A brushless DC motor structure according to claim 8, characterized in that: the top surface of the rotor assembly ( 2 ) is provided with a groove ( 21 ), and the bottom surface of the groove 1) is provided with several clips ( 210 ), the induction magnetic ring (8) is provided with a card slot ( 81 ) that matches the clamping strip (210). When the induction magnetic ring (8) is installed in the groove (21), the clamping strip (210) snaps Insert it into the card slot (81).
10、 根据权利要求 1所述的一种直流无刷电机结构, 其特征在于: 定子组 件(3)顶面伸出若干支承凸台(31) , 保护罩(41)支承安装在支承凸台(31)的顶面 上。 10. A brushless DC motor structure according to claim 1, characterized in that: a number of support bosses (31) protrude from the top surface of the stator assembly (3), and the protective cover (41) is supported and installed on the support bosses (31). 31) on the top surface.
11、 根据权利要求 1或 2或 3所述的一种直流无刷电机结构, 其特征在于: 控制线路板(42)上伸出有电机相线插片(421) , 电机相线插片(421)穿过保护罩 (41)底面,支承凸台(31)中间形成缝隙(310) ,缝隙里(310)安装有接插件( 31 1 ), 电机相线插片(421)嵌套在支承凸台(31)的缝隙(310)里与接插件( 311 )电连接, 接插件( 311 )与定子绕组( 34 ) 电连接。 11. A brushless DC motor structure according to claim 1 or 2 or 3, characterized in that: a motor phase line insert (421) extends from the control circuit board (42), and the motor phase line insert (421) extends out of the control circuit board (42). 421) passes through the bottom surface of the protective cover (41), and a gap (310) is formed in the middle of the support boss (31). A connector (31 1) is installed in the gap (310), and the motor phase wire insert (421) is nested in the support The gap (310) of the boss (31) is electrically connected to the connector (311), and the connector (311) is electrically connected to the stator winding (34).
12、 根据权利要求 1所述的一种直流无刷电机结构, 其特征在于: 在保护 罩(41 )底部浇注灌封胶, 灌封胶覆盖在控制电路板 (42 )上并将控制线路板 (42 ) 顶面上部分电子元器件灌封住。
12. A brushless DC motor structure according to claim 1, characterized in that: potting glue is poured at the bottom of the protective cover (41), and the potting glue covers the control circuit board (42) and controls the circuit board. (42) Some electronic components on the top surface are potted.
Applications Claiming Priority (2)
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CN201320093745.8 | 2013-02-28 | ||
CN2013200937458U CN203135674U (en) | 2013-02-28 | 2013-02-28 | DC brushless motor structure |
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WO2014131286A1 true WO2014131286A1 (en) | 2014-09-04 |
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PCT/CN2013/085755 WO2014131286A1 (en) | 2013-02-28 | 2013-10-23 | Brushless dc motor structure |
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WO (1) | WO2014131286A1 (en) |
Families Citing this family (3)
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CN203135674U (en) * | 2013-02-28 | 2013-08-14 | 中山大洋电机股份有限公司 | DC brushless motor structure |
CN103929912A (en) * | 2014-04-28 | 2014-07-16 | 昆山佑翔电子科技有限公司 | Breathable anti-interference magnetic ring |
CN103929913A (en) * | 2014-04-28 | 2014-07-16 | 昆山佑翔电子科技有限公司 | Anti-interference magnetic ring |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6297572B1 (en) * | 1999-08-24 | 2001-10-02 | Calsonic Kansei Corporation | Brushless motor |
US20070063603A1 (en) * | 2005-08-22 | 2007-03-22 | Levine Gregory M | Integrated motor and controller assemblies for horizontal axis washing machines |
CN202424601U (en) * | 2011-12-29 | 2012-09-05 | 中山大洋电机股份有限公司 | Direct current (DC) brushless motor controller |
CN203135674U (en) * | 2013-02-28 | 2013-08-14 | 中山大洋电机股份有限公司 | DC brushless motor structure |
-
2013
- 2013-02-28 CN CN2013200937458U patent/CN203135674U/en not_active Expired - Lifetime
- 2013-10-23 WO PCT/CN2013/085755 patent/WO2014131286A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6297572B1 (en) * | 1999-08-24 | 2001-10-02 | Calsonic Kansei Corporation | Brushless motor |
US20070063603A1 (en) * | 2005-08-22 | 2007-03-22 | Levine Gregory M | Integrated motor and controller assemblies for horizontal axis washing machines |
CN202424601U (en) * | 2011-12-29 | 2012-09-05 | 中山大洋电机股份有限公司 | Direct current (DC) brushless motor controller |
CN203135674U (en) * | 2013-02-28 | 2013-08-14 | 中山大洋电机股份有限公司 | DC brushless motor structure |
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