CN103683789B - A kind of two remaining permanent magnetic brushless Hall sensor mounting structure - Google Patents
A kind of two remaining permanent magnetic brushless Hall sensor mounting structure Download PDFInfo
- Publication number
- CN103683789B CN103683789B CN201310645675.7A CN201310645675A CN103683789B CN 103683789 B CN103683789 B CN 103683789B CN 201310645675 A CN201310645675 A CN 201310645675A CN 103683789 B CN103683789 B CN 103683789B
- Authority
- CN
- China
- Prior art keywords
- mounting plate
- hall
- hall element
- element mounting
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Brushless Motors (AREA)
Abstract
本发明属于电机设计技术。涉及对双余度直流无刷电机霍尔传感器安装结构的改进。其特征在于：在电机壳体(6)的前端口内有一个环形止口，在该环形止口内安装着霍尔元件组件，在电机轴(2)上安装着磁钢组件，霍尔元件组件和磁钢组件构成霍尔传感器组件。本发明提出了一种改进的双余度永磁无刷电机霍尔传感器安装结构，减小了电机的尺寸和重量，简化了电机引线结构，增强电机密封性，提高了电机的电磁兼容性及可靠性。
The invention belongs to motor design technology. The invention relates to the improvement of the installation structure of the Hall sensor of the double redundant DC brushless motor. It is characterized in that: there is an annular spigot in the front port of the motor housing (6), a Hall element assembly is installed in the annular slit, a magnetic steel assembly is installed on the motor shaft (2), and the Hall element The component and the magnetic steel component constitute the Hall sensor component. The present invention proposes an improved double-redundancy permanent magnet brushless motor Hall sensor installation structure, which reduces the size and weight of the motor, simplifies the structure of the motor leads, enhances the sealing performance of the motor, and improves the electromagnetic compatibility and protection of the motor. reliability.
Description
技术领域technical field
本发明属于电机设计技术。涉及对双余度直流无刷电机霍尔传感器安装结构的改进。The invention belongs to motor design technology. The invention relates to the improvement of the installation structure of the Hall sensor of the double redundant DC brushless motor.
背景技术Background technique
现有的一种双余度直流无刷电机霍尔传感器安装结构参见图1，其结构由固定螺钉1、电机轴2、电机轴承3、前端盖4、霍尔传感器导线5、电机壳体6、带霍尔元件的传感器电路板7、传感器磁钢座8、传感器磁钢9组成；上述的第一组带霍尔元件的传感器电路板7固定在前端盖4内表面上，同样还有第二组带霍尔元件的传感器电路板7固定在后端盖内表面上；传感器磁钢9固定在传感器磁钢座8前端面槽内组成传感器磁钢单元，传感器磁钢单元同电机轴同心固定，电机后端盖内侧电机轴上同样安装着相同一组传感器磁钢单元，分别与前后端盖上的传感器电路板相对应；前端盖4上的霍尔传感器导线5从电机前端部引出，后端盖上的霍尔传感器导线从电机后端部引出。An existing double-redundant DC brushless motor Hall sensor installation structure is shown in Figure 1. Its structure consists of a fixing screw 1, a motor shaft 2, a motor bearing 3, a front cover 4, a Hall sensor wire 5, and a motor housing 6. The sensor circuit board 7 with Hall element, the sensor magnetic steel base 8, and the sensor magnetic steel 9 are composed; the above-mentioned first group of sensor circuit board 7 with Hall element is fixed on the inner surface of the front end cover 4, and there are also The sensor circuit board 7 with the second set of Hall elements is fixed on the inner surface of the rear end cover; the sensor magnet 9 is fixed in the front groove of the sensor magnet seat 8 to form a sensor magnet unit, and the sensor magnet unit is concentric with the motor shaft Fixed, the same group of sensor magnetic steel units is also installed on the motor shaft inside the rear end cover of the motor, corresponding to the sensor circuit boards on the front and rear end covers respectively; the Hall sensor wire 5 on the front end cover 4 is drawn out from the front end of the motor. The wires of the Hall sensor on the rear end cover are led out from the rear end of the motor.
其工作原理是：上述双余度无刷直流电机有两个电机绕组，两组霍尔位置传感器构件，第一组电机绕组与电机前端的第一组霍尔位置传感器构件相对应，同时通电工作构成第一余度；第二组电机绕组与电机后端的第二组霍尔位置传感器构件相对应，同时通电工作构成第二余度；当第一余度工作时，第二余度不工作；当第一余度不工作或故障时，可由第二余度进行工作。Its working principle is: the above-mentioned double-redundancy brushless DC motor has two motor windings, two sets of Hall position sensor components, the first set of motor windings corresponds to the first set of Hall position sensor components at the front end of the motor, and works at the same time Constitute the first redundancy; the second group of motor windings corresponds to the second group of Hall position sensor components at the rear end of the motor, and at the same time, the power-on operation constitutes the second redundancy; when the first redundancy is working, the second redundancy is not working; When the first redundancy does not work or fails, the second redundancy can work.
其缺点是：第一、电机的轴向尺寸大，重量沉、密封性差。现有的双余度直流无刷电机霍尔传感器安装结构在电机轴前后各安装着一组传感器磁钢单元以及带霍尔元件传感器电路板的端盖，增大了电机的轴向安装尺寸以及电机的重量，同时增加的电机后端盖使电机的密封性差；第二、电机引线结构复杂、线路长。该无刷直流电机为双绕组式两端部位设置霍尔传感器结构，需要从电机两端引出霍尔传感器导线，安装在电机前端的霍尔传感器导线从电机前端引出，安装在电机后端的霍尔传感器导线从电机后端引出，需要从电机外部固定后合二为一，再进行电气连接。这样使电机的导线分开引出，结构复杂，引出导线长；第三、电磁兼容性及可靠性差。现有的双余度直流无刷电机霍尔传感器安装结构使得电机有后端盖零件的安装，螺钉固定缝隙及配合面间隙以及引线长度均影响了电机的电磁兼容性，同时使得可靠性差。Its disadvantages are: first, the motor has a large axial dimension, heavy weight, and poor sealing. In the existing double-redundant DC brushless motor Hall sensor installation structure, a group of sensor magnetic steel units and end covers with Hall element sensor circuit boards are installed on the front and rear of the motor shaft, which increases the axial installation size of the motor and The weight of the motor and the increased rear end cover of the motor make the sealing performance of the motor poor; second, the lead wire structure of the motor is complicated and the circuit is long. The brushless DC motor has a Hall sensor structure at both ends of the double-winding type. It is necessary to lead out the Hall sensor wires from both ends of the motor. The sensor wires are led out from the rear end of the motor, which need to be fixed from the outside of the motor and combined into one, and then electrically connected. In this way, the lead wires of the motor are drawn separately, the structure is complicated, and the lead wires are long; third, the electromagnetic compatibility and reliability are poor. The existing double-redundant DC brushless motor Hall sensor installation structure makes the installation of the rear end cover parts of the motor, the screw fixing gap, the gap between the mating surface and the length of the lead wire all affect the electromagnetic compatibility of the motor, and make the reliability poor.
发明内容Contents of the invention
本发明的目的是：提出一种改进的双余度永磁无刷电机霍尔传感器安装结构，以便减小电机的尺寸和重量，简化电机引线结构，增强电机密封性，提高电机的电磁兼容性及可靠性。The purpose of the present invention is: to propose an improved double redundant permanent magnet brushless motor hall sensor installation structure, in order to reduce the size and weight of the motor, simplify the motor lead structure, enhance the sealing performance of the motor, and improve the electromagnetic compatibility of the motor and reliability.
本发明的技术方案是：一种双余度永磁无刷电机霍尔传感器安装结构，包括前端盖固定螺钉1、前端盖4、电机轴2、前轴承3和电机壳体6；前端盖4和电机壳体6的前端通过前端盖固定螺钉1连接为整体，电机壳体6是一个后端封闭、前端开口的圆筒，在电机壳体6靠近前端口的位置有引线孔，前轴承3安装在前端盖4中心的轴承座内，电机轴2从前轴承3内圈的中心穿出；其特征在于：在电机壳体6的前端口内有一个环形止口，在该环形止口内安装着霍尔元件组件，在电机轴2上安装着磁钢组件，霍尔元件组件和磁钢组件构成霍尔传感器组件；The technical solution of the present invention is: a double redundant permanent magnet brushless motor Hall sensor installation structure, including the front cover fixing screw 1, the front cover 4, the motor shaft 2, the front bearing 3 and the motor housing 6; the front cover 4 and the front end of the motor housing 6 are connected as a whole through the front end cover fixing screw 1. The motor housing 6 is a cylinder with a closed rear end and an open front end. There is a lead hole near the front port of the motor housing 6. , the front bearing 3 is installed in the bearing seat in the center of the front end cover 4, and the motor shaft 2 passes through the center of the inner ring of the front bearing 3; A Hall element assembly is installed in the annular spigot, a magnetic steel assembly is installed on the motor shaft 2, and the Hall element assembly and the magnetic steel assembly form a Hall sensor assembly;
霍尔传感器组件由第二霍尔电路板10、第一霍尔元件安装盘11、第一霍尔电路板12、第二霍尔元件安装盘13、固定环14、第一连接螺钉15和第二连接螺钉组成；第一霍尔元件安装盘11是一个带有中心孔的圆盘，第一霍尔元件安装盘11的圆周上有4个沿圆周均布的矩形的螺钉让位缺口11d，在相邻两个螺钉让位缺口11d中间有一个第一霍尔元件安装盘圆弧孔11b，4个第一霍尔元件安装盘圆弧孔11b沿圆周均布，在第一霍尔元件安装盘11的后表面上有一个第一霍尔元件安装盘环形凸台11c，第一霍尔元件安装盘环形凸台11c与第一霍尔元件安装盘11的中心孔同轴，在第一霍尔元件安装盘环形凸台11c上有一个贯通的圆弧形的第一霍尔元件安装盘环形凸台引线孔11e，在第一霍尔元件安装盘环形凸台11c的外侧有一个第一霍尔元件安装盘引线孔11f，第一霍尔元件安装盘环形凸台引线孔11e和第一霍尔元件安装盘引线孔11f沿径向贯通；第二霍尔元件安装盘13是一个圆环，第二霍尔元件安装盘13的环面上有8个沿圆周均布的第二霍尔元件安装盘圆弧孔13d，其中4个第二霍尔元件安装盘圆弧孔13d的位置与第一霍尔元件安装盘圆弧孔11b的位置对应，另外4个第二霍尔元件安装盘圆弧孔13d的位置与第一霍尔元件安装盘11上4个螺钉让位缺口11d的位置对应，在第二霍尔元件安装盘13的后表面上有一个第二霍尔元件安装盘环形凸台13b，第二霍尔元件安装盘环形凸台13b与第二霍尔元件安装盘13的中心孔同轴，在第二霍尔元件安装盘13中心孔的圆周上有一个贯通的缺口13c，第二霍尔元件安装盘13的中心孔13a套在第一霍尔元件安装盘环形凸台11c的外圆周面上并保持间隙配合，第二霍尔元件安装盘13中心孔的缺口13c的位置与第一霍尔元件安装盘环形凸台引线孔11e的位置对应；第一霍尔电路板12是一个由印刷电路板制成的圆环，在第一霍尔电路板12的后表面焊接着沿圆周均布的三个长方体外形的第一霍尔电路板霍尔元件12b，三个第一霍尔电路板霍尔元件12b的后表面共面，在第一霍尔电路板12的环面上有一个第一霍尔电路板引线孔12c，第一霍尔电路板12的中心孔12a的孔径与第二霍尔元件安装盘13的中心孔13a相等，第一霍尔电路板12的外径不大于第二霍尔元件安装盘环形凸台13b的外径，第一霍尔电路板12采用螺钉或者粘接的方式固定在第二霍尔元件安装盘环形凸台13b的表面上，第一霍尔电路板引线孔12c的位置与第二霍尔元件安装盘13中心孔的缺口13c的位置对应；第二霍尔电路板10是一个由印刷电路板制成的圆环，在第二霍尔电路板10的后表面焊接着沿圆周均布的三个长方体外形的第二霍尔电路板霍尔元件10b，三个第二霍尔电路板霍尔元件10b的后表面共面，在第二霍尔电路板10的环面上有一个第二霍尔电路板引线孔10c，第二霍尔电路板10的中心孔10a的孔径与第一霍尔元件安装盘11的中心孔11a相等，第二霍尔电路板10的外径不大于第一霍尔元件安装盘环形凸台11c的外径，第二霍尔电路板10采用螺钉或者粘接的方式固定在第一霍尔元件安装盘环形凸台11c的表面上，第二霍尔电路板引线孔10c的位置与第一霍尔元件安装盘环形凸台引线孔11e的位置对应；固定环14是一个横截面为矩形的圆环，在固定环14的环面上有8个沿圆周均布的贯通的螺纹孔，固定环14安装在电机壳体6前端的止口内，固定环14与止口过盈配合，通过4个第二连接螺钉将第二霍尔元件安装盘13固定在固定环14的前端面上，通过4个第一连接螺钉15将第一霍尔元件安装盘11和第二霍尔元件安装盘13固定在固定环14的前端面上，第二连接螺钉的螺钉头位于第一霍尔元件安装盘11的螺钉让位缺口11d内，三个第一霍尔电路板霍尔元件12b和三个第二霍尔电路板霍尔元件10b的后表面共面；The Hall sensor assembly consists of a second Hall circuit board 10, a first Hall element mounting plate 11, a first Hall circuit board 12, a second Hall element mounting plate 13, a fixing ring 14, a first connecting screw 15 and a second Hall element mounting plate. Composed of two connecting screws; the first Hall element mounting plate 11 is a disc with a central hole, and there are 4 rectangular screw gaps 11d uniformly distributed along the circumference on the circumference of the first Hall element mounting plate 11, There is a first Hall element mounting plate circular arc hole 11b in the middle of two adjacent screw relief gaps 11d, and 4 first Hall element mounting plate circular arc holes 11b are evenly distributed along the circumference. The rear surface of the disc 11 has a first Hall element mounting plate annular boss 11c, the first Hall element mounting plate annular boss 11c is coaxial with the center hole of the first Hall element mounting plate 11, and the There is a circular arc-shaped first Hall element mounting plate annular boss lead hole 11e on the annular boss 11c of the Hall element mounting plate, and there is a first Hall element mounting plate annular boss 11c outside the first Hall element. The lead hole 11f of the Hall element mounting plate, the lead hole 11e of the annular boss of the first Hall element mounting plate and the lead hole 11f of the first Hall element mounting plate penetrate radially; the second Hall element mounting plate 13 is a ring, On the annular surface of the second Hall element mounting plate 13, there are 8 second Hall element mounting plate circular arc holes 13d uniformly distributed along the circumference, wherein the positions of the 4 second Hall element mounting plate arc holes 13d are the same as those of the second Hall element mounting plate arc holes 13d. The position of the arc hole 11b of the first Hall element mounting plate corresponds to the position of the other four arc holes 13d of the second Hall element mounting plate correspond to the positions of the four screw gaps 11d on the first Hall element mounting plate 11 , on the rear surface of the second Hall element mounting plate 13, there is a second Hall element mounting plate annular boss 13b, and the second Hall element mounting plate annular boss 13b is connected to the center of the second Hall element mounting plate 13 The holes are coaxial, and there is a through gap 13c on the circumference of the center hole of the second Hall element mounting plate 13, and the central hole 13a of the second Hall element mounting plate 13 is sleeved on the annular boss 11c of the first Hall element mounting plate On the outer peripheral surface of the Hall element mounting plate 13 and maintain clearance fit, the position of the notch 13c in the center hole of the second Hall element mounting plate 13 corresponds to the position of the lead hole 11e of the annular boss of the first Hall element mounting plate; the first Hall circuit board 12 It is a ring made of a printed circuit board. On the rear surface of the first Hall circuit board 12, three first Hall circuit board Hall elements 12b in the shape of a rectangular parallelepiped uniformly distributed along the circumference are welded. The rear surface of the Hall circuit board Hall element 12b is coplanar, and a first Hall circuit board lead hole 12c is arranged on the ring surface of the first Hall circuit board 12, and the central hole 12a of the first Hall circuit board 12 The aperture is equal to the central hole 13a of the second Hall element mounting plate 13, the outer diameter of the first Hall circuit board 12 is not greater than the outer diameter of the annular boss 13b of the second Hall element mounting plate, the first Hall circuit board 12 It is fixed on the surface of the annular boss 13b of the second Hall element mounting plate by means of screws or bonding, and the first Hall circuit board The position of the lead hole 12c corresponds to the position of the notch 13c in the center hole of the second Hall element mounting plate 13; the second Hall circuit board 10 is a ring made of a printed circuit board, and the second Hall circuit board 10 The rear surface of the three second Hall circuit board Hall elements 10b that are evenly distributed along the circumference are welded, and the rear surfaces of the Hall elements 10b of the three second Hall circuit boards are coplanar. There is a second Hall circuit board lead hole 10c on the ring surface of the board 10, the aperture diameter of the center hole 10a of the second Hall circuit board 10 is equal to the center hole 11a of the first Hall element mounting plate 11, the second Hall The outer diameter of the circuit board 10 is not larger than the outer diameter of the annular boss 11c of the first Hall element mounting plate, and the second Hall circuit board 10 is fixed on the annular boss 11c of the first Hall element mounting plate by means of screws or bonding. On the surface of the surface, the position of the lead hole 10c of the second Hall circuit board corresponds to the position of the lead hole 11e of the annular boss of the first Hall element mounting plate; the fixed ring 14 is a circular ring with a rectangular cross section, and the fixed ring 14 There are 8 through threaded holes evenly distributed along the circumference on the ring surface, the fixed ring 14 is installed in the spigot of the front end of the motor housing 6, the fixed ring 14 is interference fit with the spigot, and is connected by 4 second connecting screws. The second Hall element mounting plate 13 is fixed on the front end face of the fixing ring 14, and the first Hall element mounting plate 11 and the second Hall element mounting plate 13 are fixed on the front end surface of the fixing ring 14 by four first connecting screws 15. On the front end face, the screw head of the second connecting screw is located in the screw relief gap 11d of the first Hall element mounting plate 11, and the Hall elements 12b of the three first Hall circuit boards and the Hall elements 12b of the three second Hall circuit boards The rear surfaces of the Er elements 10b are coplanar;
磁钢组件由4个结构相同的、圆弧形的、横截面为矩形的第一磁钢7、4个结构相同的、圆弧形的、横截面为矩形的第二磁钢8和磁钢座9组成；磁钢座9由前边的圆盘和后边的圆柱9b连接组成，磁钢座9的中心孔9a套在电机轴2上，通过花键连接或者过盈配合与电机轴2连接为整体，在磁钢座9圆盘的前表面上有两圈同轴的、横截面为矩形的环形槽，直径大的环形槽是第一磁钢安装环形槽9c,直径小的环形槽是第二磁钢安装环形槽9d，4个第一磁钢7对合形成环形的第一磁钢单元，第一磁钢单元通过粘接固定在第一磁钢安装环形槽9c内,相邻两个第一磁钢7的极性相反，4个第二磁钢8对合形成环形的第二磁钢单元，第二磁钢单元通过粘接固定在第二磁钢安装环形槽9d内,相邻两个第二磁钢8的极性相反；The magnetic steel assembly consists of four first magnetic steels 7 with the same structure, arc-shaped, and rectangular in cross-section, four second magnetic steels 8 with the same structure, arc-shaped, and rectangular in cross-section, and the magnetic steel The magnetic steel seat 9 is composed of a front disc and a rear cylinder 9b, the central hole 9a of the magnetic steel seat 9 is set on the motor shaft 2, and is connected to the motor shaft 2 through a spline connection or an interference fit. On the whole, there are two circles of coaxial ring grooves with a rectangular cross section on the front surface of the magnetic steel seat 9 discs. The big ring groove is the first magnetic steel installation ring groove 9c, and the small diameter ring groove is the first ring groove. The second magnetic steel is installed in the annular groove 9d, and the four first magnetic steels 7 are combined to form a ring-shaped first magnetic steel unit. The first magnetic steel unit is fixed in the first magnetic steel installation annular groove 9c by bonding, and two adjacent The polarity of the first magnet 7 is opposite, and four second magnets 8 are combined to form an annular second magnet unit. The second magnet unit is fixed in the second magnet installation annular groove 9d by bonding, adjacent to each other. The polarities of the two second magnets 8 are opposite;
霍尔元件组件的后表面和磁钢组件的前表面相对，第一磁钢单元与第一霍尔电路板霍尔元件12b的位置对应；第二磁钢单元与第二霍尔电路板霍尔元件10b的位置对应。The rear surface of the Hall element assembly is opposite to the front surface of the magnetic steel assembly, and the first magnetic steel unit corresponds to the position of the Hall element 12b of the first Hall circuit board; the second magnetic steel unit corresponds to the position of the Hall element 12b on the second Hall circuit board. The position of the element 10b corresponds.
本发明的优点是：提出了一种改进的双余度永磁无刷电机霍尔传感器安装结构，减小了电机的尺寸和重量，简化了电机引线结构，提高了电机的电磁兼容性及可靠性。本发明的一个实施例，与现有结构相比，电机的重量减少了30％以上。The advantages of the present invention are: an improved double-redundancy permanent magnet brushless motor Hall sensor installation structure is proposed, the size and weight of the motor are reduced, the lead wire structure of the motor is simplified, and the electromagnetic compatibility and reliability of the motor are improved. sex. In one embodiment of the present invention, compared with the existing structure, the weight of the motor is reduced by more than 30%.
附图说明Description of drawings
图1现有的一种双余度直流无刷电机霍尔传感器安装结构的示意图。Fig. 1 is a schematic diagram of an existing Hall sensor installation structure of a dual-redundancy brushless DC motor.
图2是本发明的结构示意图。Fig. 2 is a structural schematic diagram of the present invention.
图3是本发明中霍尔传感器组件的结构示意图。Fig. 3 is a schematic structural diagram of a Hall sensor assembly in the present invention.
图4是本发明中磁钢组件的结构示意图。Fig. 4 is a structural schematic diagram of the magnetic steel assembly in the present invention.
具体实施方式Detailed ways
下面对本发明做进一步详细说明。参见图2至图4，一种双余度永磁无刷电机霍尔传感器安装结构，包括前端盖固定螺钉1、前端盖4、电机轴2、前轴承3和电机壳体6；前端盖4和电机壳体6的前端通过前端盖固定螺钉1连接为整体，电机壳体6是一个后端封闭、前端开口的圆筒，在电机壳体6靠近前端口的位置有引线孔，前轴承3安装在前端盖4中心的轴承座内，电机轴2从前轴承3内圈的中心穿出；其特征在于：在电机壳体6的前端口内有一个环形止口，在该环形止口内安装着霍尔元件组件，在电机轴2上安装着磁钢组件，霍尔元件组件和磁钢组件构成霍尔传感器组件；The present invention will be described in further detail below. Referring to Fig. 2 to Fig. 4, a Hall sensor installation structure of a double-redundancy permanent magnet brushless motor, including a front cover fixing screw 1, a front cover 4, a motor shaft 2, a front bearing 3 and a motor housing 6; the front cover 4 and the front end of the motor housing 6 are connected as a whole through the front end cover fixing screw 1. The motor housing 6 is a cylinder with a closed rear end and an open front end. There is a lead hole near the front port of the motor housing 6. , the front bearing 3 is installed in the bearing seat in the center of the front end cover 4, and the motor shaft 2 passes through the center of the inner ring of the front bearing 3; A Hall element assembly is installed in the annular spigot, a magnetic steel assembly is installed on the motor shaft 2, and the Hall element assembly and the magnetic steel assembly form a Hall sensor assembly;
霍尔传感器组件由第二霍尔电路板10、第一霍尔元件安装盘11、第一霍尔电路板12、第二霍尔元件安装盘13、固定环14、第一连接螺钉15和第二连接螺钉组成；第一霍尔元件安装盘11是一个带有中心孔的圆盘，第一霍尔元件安装盘11的圆周上有4个沿圆周均布的矩形的螺钉让位缺口11d，在相邻两个螺钉让位缺口11d中间有一个第一霍尔元件安装盘圆弧孔11b，4个第一霍尔元件安装盘圆弧孔11b沿圆周均布，在第一霍尔元件安装盘11的后表面上有一个第一霍尔元件安装盘环形凸台11c，第一霍尔元件安装盘环形凸台11c与第一霍尔元件安装盘11的中心孔同轴，在第一霍尔元件安装盘环形凸台11c上有一个贯通的圆弧形的第一霍尔元件安装盘环形凸台引线孔11e，在第一霍尔元件安装盘环形凸台11c的外侧有一个第一霍尔元件安装盘引线孔11f，第一霍尔元件安装盘环形凸台引线孔11e和第一霍尔元件安装盘引线孔11f沿径向贯通；第二霍尔元件安装盘13是一个圆环，第二霍尔元件安装盘13的环面上有8个沿圆周均布的第二霍尔元件安装盘圆弧孔13d，其中4个第二霍尔元件安装盘圆弧孔13d的位置与第一霍尔元件安装盘圆弧孔11b的位置对应，另外4个第二霍尔元件安装盘圆弧孔13d的位置与第一霍尔元件安装盘11上4个螺钉让位缺口11d的位置对应，在第二霍尔元件安装盘13的后表面上有一个第二霍尔元件安装盘环形凸台13b，第二霍尔元件安装盘环形凸台13b与第二霍尔元件安装盘13的中心孔同轴，在第二霍尔元件安装盘13中心孔的圆周上有一个贯通的缺口13c，第二霍尔元件安装盘13的中心孔13a套在第一霍尔元件安装盘环形凸台11c的外圆周面上并保持间隙配合，第二霍尔元件安装盘13中心孔的缺口13c的位置与第一霍尔元件安装盘环形凸台引线孔11e的位置对应；第一霍尔电路板12是一个由印刷电路板制成的圆环，在第一霍尔电路板12的后表面焊接着沿圆周均布的三个长方体外形的第一霍尔电路板霍尔元件12b，三个第一霍尔电路板霍尔元件12b的后表面共面，在第一霍尔电路板12的环面上有一个第一霍尔电路板引线孔12c，第一霍尔电路板12的中心孔12a的孔径与第二霍尔元件安装盘13的中心孔13a相等，第一霍尔电路板12的外径不大于第二霍尔元件安装盘环形凸台13b的外径，第一霍尔电路板12采用螺钉或者粘接的方式固定在第二霍尔元件安装盘环形凸台13b的表面上，第一霍尔电路板引线孔12c的位置与第二霍尔元件安装盘13中心孔的缺口13c的位置对应；第二霍尔电路板10是一个由印刷电路板制成的圆环，在第二霍尔电路板10的后表面焊接着沿圆周均布的三个长方体外形的第二霍尔电路板霍尔元件10b，三个第二霍尔电路板霍尔元件10b的后表面共面，在第二霍尔电路板10的环面上有一个第二霍尔电路板引线孔10c，第二霍尔电路板10的中心孔10a的孔径与第一霍尔元件安装盘11的中心孔11a相等，第二霍尔电路板10的外径不大于第一霍尔元件安装盘环形凸台11c的外径，第二霍尔电路板10采用螺钉或者粘接的方式固定在第一霍尔元件安装盘环形凸台11c的表面上，第二霍尔电路板引线孔10c的位置与第一霍尔元件安装盘环形凸台引线孔11e的位置对应；固定环14是一个横截面为矩形的圆环，在固定环14的环面上有8个沿圆周均布的贯通的螺纹孔，固定环14安装在电机壳体6前端的止口内，固定环14与止口过盈配合，通过4个第二连接螺钉将第二霍尔元件安装盘13固定在固定环14的前端面上，通过4个第一连接螺钉15将第一霍尔元件安装盘11和第二霍尔元件安装盘13固定在固定环14的前端面上，第二连接螺钉的螺钉头位于第一霍尔元件安装盘11的螺钉让位缺口11d内，三个第一霍尔电路板霍尔元件12b和三个第二霍尔电路板霍尔元件10b的后表面共面；The Hall sensor assembly consists of a second Hall circuit board 10, a first Hall element mounting plate 11, a first Hall circuit board 12, a second Hall element mounting plate 13, a fixing ring 14, a first connecting screw 15 and a second Hall element mounting plate. Composed of two connecting screws; the first Hall element mounting plate 11 is a disc with a central hole, and there are 4 rectangular screw gaps 11d uniformly distributed along the circumference on the circumference of the first Hall element mounting plate 11, There is a first Hall element mounting plate circular arc hole 11b in the middle of two adjacent screw relief gaps 11d, and 4 first Hall element mounting plate circular arc holes 11b are evenly distributed along the circumference. The rear surface of the disc 11 has a first Hall element mounting plate annular boss 11c, the first Hall element mounting plate annular boss 11c is coaxial with the center hole of the first Hall element mounting plate 11, and the There is a circular arc-shaped first Hall element mounting plate annular boss lead hole 11e on the annular boss 11c of the Hall element mounting plate, and there is a first Hall element mounting plate annular boss 11c outside the first Hall element. The lead hole 11f of the Hall element mounting plate, the lead hole 11e of the annular boss of the first Hall element mounting plate and the lead hole 11f of the first Hall element mounting plate penetrate radially; the second Hall element mounting plate 13 is a ring, On the annular surface of the second Hall element mounting plate 13, there are 8 second Hall element mounting plate circular arc holes 13d uniformly distributed along the circumference, wherein the positions of the 4 second Hall element mounting plate arc holes 13d are the same as those of the second Hall element mounting plate arc holes 13d. The position of the arc hole 11b of the first Hall element mounting plate corresponds to the position of the other four arc holes 13d of the second Hall element mounting plate correspond to the positions of the four screw gaps 11d on the first Hall element mounting plate 11 , on the rear surface of the second Hall element mounting plate 13, there is a second Hall element mounting plate annular boss 13b, and the second Hall element mounting plate annular boss 13b is connected to the center of the second Hall element mounting plate 13 The holes are coaxial, and there is a through gap 13c on the circumference of the center hole of the second Hall element mounting plate 13, and the central hole 13a of the second Hall element mounting plate 13 is sleeved on the annular boss 11c of the first Hall element mounting plate On the outer peripheral surface of the Hall element mounting plate 13 and maintain clearance fit, the position of the notch 13c in the center hole of the second Hall element mounting plate 13 corresponds to the position of the lead hole 11e of the annular boss of the first Hall element mounting plate; the first Hall circuit board 12 It is a ring made of a printed circuit board. On the rear surface of the first Hall circuit board 12, three first Hall circuit board Hall elements 12b in the shape of a rectangular parallelepiped uniformly distributed along the circumference are welded. The rear surface of the Hall circuit board Hall element 12b is coplanar, and a first Hall circuit board lead hole 12c is arranged on the ring surface of the first Hall circuit board 12, and the central hole 12a of the first Hall circuit board 12 The aperture is equal to the central hole 13a of the second Hall element mounting plate 13, the outer diameter of the first Hall circuit board 12 is not greater than the outer diameter of the annular boss 13b of the second Hall element mounting plate, the first Hall circuit board 12 It is fixed on the surface of the annular boss 13b of the second Hall element mounting plate by means of screws or bonding, and the first Hall circuit board The position of the lead hole 12c corresponds to the position of the notch 13c in the center hole of the second Hall element mounting plate 13; the second Hall circuit board 10 is a ring made of a printed circuit board, and the second Hall circuit board 10 The rear surface of the three second Hall circuit board Hall elements 10b that are evenly distributed along the circumference are welded, and the rear surfaces of the Hall elements 10b of the three second Hall circuit boards are coplanar. There is a second Hall circuit board lead hole 10c on the ring surface of the board 10, the aperture diameter of the center hole 10a of the second Hall circuit board 10 is equal to the center hole 11a of the first Hall element mounting plate 11, the second Hall The outer diameter of the circuit board 10 is not larger than the outer diameter of the annular boss 11c of the first Hall element mounting plate, and the second Hall circuit board 10 is fixed on the annular boss 11c of the first Hall element mounting plate by means of screws or bonding. On the surface of the surface, the position of the lead hole 10c of the second Hall circuit board corresponds to the position of the lead hole 11e of the annular boss of the first Hall element mounting plate; the fixed ring 14 is a circular ring with a rectangular cross section, and the fixed ring 14 There are 8 through threaded holes evenly distributed along the circumference on the ring surface, the fixed ring 14 is installed in the spigot of the front end of the motor housing 6, the fixed ring 14 is interference fit with the spigot, and is connected by 4 second connecting screws. The second Hall element mounting plate 13 is fixed on the front end face of the fixing ring 14, and the first Hall element mounting plate 11 and the second Hall element mounting plate 13 are fixed on the front end surface of the fixing ring 14 by four first connecting screws 15. On the front end face, the screw head of the second connecting screw is located in the screw relief gap 11d of the first Hall element mounting plate 11, and the Hall elements 12b of the three first Hall circuit boards and the Hall elements 12b of the three second Hall circuit boards The rear surfaces of the Er elements 10b are coplanar;
磁钢组件由4个结构相同的、圆弧形的、横截面为矩形的第一磁钢7、4个结构相同的、圆弧形的、横截面为矩形的第二磁钢8和磁钢座9组成；磁钢座9由前边的圆盘和后边的圆柱9b连接组成，磁钢座9的中心孔9a套在电机轴2上，通过花键连接或者过盈配合与电机轴2连接为整体，在磁钢座9圆盘的前表面上有两圈同轴的、横截面为矩形的环形槽，直径大的环形槽是第一磁钢安装环形槽9c,直径小的环形槽是第二磁钢安装环形槽9d，4个第一磁钢7对合形成环形的第一磁钢单元，第一磁钢单元通过粘接固定在第一磁钢安装环形槽9c内,相邻两个第一磁钢7的极性相反，4个第二磁钢8对合形成环形的第二磁钢单元，第二磁钢单元通过粘接固定在第二磁钢安装环形槽9d内,相邻两个第二磁钢8的极性相反；The magnetic steel assembly consists of four first magnetic steels 7 with the same structure, arc-shaped, and rectangular in cross-section, four second magnetic steels 8 with the same structure, arc-shaped, and rectangular in cross-section, and the magnetic steel The magnetic steel seat 9 is composed of a front disc and a rear cylinder 9b, the central hole 9a of the magnetic steel seat 9 is set on the motor shaft 2, and is connected to the motor shaft 2 through a spline connection or an interference fit. On the whole, there are two circles of coaxial ring grooves with a rectangular cross section on the front surface of the magnetic steel seat 9 discs. The big ring groove is the first magnetic steel installation ring groove 9c, and the small diameter ring groove is the first ring groove. The second magnetic steel is installed in the annular groove 9d, and the four first magnetic steels 7 are combined to form a ring-shaped first magnetic steel unit. The first magnetic steel unit is fixed in the first magnetic steel installation annular groove 9c by bonding, and two adjacent The polarity of the first magnet 7 is opposite, and four second magnets 8 are combined to form an annular second magnet unit. The second magnet unit is fixed in the second magnet installation annular groove 9d by bonding, adjacent to each other. The polarities of the two second magnets 8 are opposite;
霍尔元件组件的后表面和磁钢组件的前表面相对，第一磁钢单元与第一霍尔电路板霍尔元件12b的位置对应；第二磁钢单元与第二霍尔电路板霍尔元件10b的位置对应。The rear surface of the Hall element assembly is opposite to the front surface of the magnetic steel assembly, and the first magnetic steel unit corresponds to the position of the Hall element 12b of the first Hall circuit board; the second magnetic steel unit corresponds to the position of the Hall element 12b on the second Hall circuit board. The position of the element 10b corresponds.
本发明的工作原理是：本发明提出的双余度永磁无刷电机霍尔传感器安装结构将安装在电机轴前后部的两组传感器磁钢单元集成放在了一端，传感器磁钢的轴向分布改为径向分布，而并没有增大安装空间，省去了一组磁钢安装座和电机后端盖零件，缩短了电机的轴向尺寸，减少了电机零件和重量，将电机的电气引线由原来的两端引出改为一端引出，使得引线结构变得简单方便，还减短了引线长度，同事也减少了重量和成本，减少了电机后盖的双余度永磁无刷电机壳体后端为封闭体，提高了电机的密封性以及电磁兼容性，同时提高了电机整体可靠性。The working principle of the present invention is: the dual-redundancy permanent magnet brushless motor Hall sensor installation structure proposed by the present invention integrates two sets of sensor magnetic steel units installed at the front and rear of the motor shaft and puts them at one end, and the axial direction of the sensor magnetic steel The distribution is changed to radial distribution without increasing the installation space, eliminating a set of magnetic steel mounting base and motor rear end cover parts, shortening the axial size of the motor, reducing the parts and weight of the motor, and reducing the electrical components of the motor. The lead wire is led out from the original two ends to one end, which makes the lead wire structure simple and convenient, and also reduces the length of the lead wire. At the same time, it also reduces the weight and cost, and reduces the double-redundant permanent magnet brushless motor on the back cover of the motor. The rear end of the housing is a closed body, which improves the sealing performance and electromagnetic compatibility of the motor, and improves the overall reliability of the motor at the same time.
本发明的一个实施例，与现有的结构相比，电机的重量减少了30％以上。In one embodiment of the present invention, compared with the existing structure, the weight of the motor is reduced by more than 30%.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645675.7A CN103683789B (en) | 2013-12-04 | 2013-12-04 | A kind of two remaining permanent magnetic brushless Hall sensor mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645675.7A CN103683789B (en) | 2013-12-04 | 2013-12-04 | A kind of two remaining permanent magnetic brushless Hall sensor mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103683789A CN103683789A (en) | 2014-03-26 |
| CN103683789B true CN103683789B (en) | 2015-11-25 |
Family
ID=50320386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310645675.7A Expired - Fee Related CN103683789B (en) | 2013-12-04 | 2013-12-04 | A kind of two remaining permanent magnetic brushless Hall sensor mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103683789B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106558970A (en) * | 2015-09-28 | 2017-04-05 | 浙江超强机械有限公司 | A kind of non-brush permanent-magnet DC motor |
| CN106487193A (en) * | 2016-11-24 | 2017-03-08 | 兰州飞行控制有限责任公司 | A kind of DC brushless motor Hall subassembly fine position structure |
| CN106347687B (en) * | 2016-11-24 | 2018-05-15 | 兰州飞行控制有限责任公司 | A kind of mounting structure of aircraft handling column and cockpit floor |
| CN106849427B (en) * | 2017-02-27 | 2019-04-12 | 哈尔滨工业大学 | A kind of side-wall coring permanent magnet motor |
| CN109973785B (en) * | 2019-04-12 | 2020-05-15 | 中国科学院长春光学精密机械与物理研究所 | A Hall device positioning device |
| CN111693073B (en) * | 2020-06-28 | 2022-01-25 | 哈尔滨理工大学 | Bidirectional redundant magnetoelectric encoder and redundancy detection method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656695U (en) * | 2010-02-03 | 2010-11-24 | 山东力久特种电机有限公司 | Motor with encoder |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4077066B2 (en) * | 1998-03-06 | 2008-04-16 | 曙ブレーキ工業株式会社 | Electric motor |
| JP2003274623A (en) * | 2002-03-14 | 2003-09-26 | Mitsuba Corp | Brushless motor and control method therefor |
-
2013
- 2013-12-04 CN CN201310645675.7A patent/CN103683789B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201656695U (en) * | 2010-02-03 | 2010-11-24 | 山东力久特种电机有限公司 | Motor with encoder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103683789A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103683789B (en) | A kind of two remaining permanent magnetic brushless Hall sensor mounting structure | |
| CN204425078U (en) | Electric rotating machine | |
| TWI687028B (en) | Motor structure | |
| CN103915970B (en) | Composite stepper motor | |
| CN204858787U (en) | Rotor punching and permanent -magnet machine who uses thereof | |
| CN203761224U (en) | Permanent magnet motor rotor assembling structure | |
| JP2014176111A (en) | Motor | |
| CN101154832A (en) | Permanent magnet motor with axial permanent magnetic potential control and compensation function | |
| CN205753830U (en) | The brake structure of braking motor | |
| CN208971274U (en) | Coil skeleton, bearing iron core, electricity connecting part, bearing and magnetic suspension motor | |
| CN204810088U (en) | Cast aluminium rotor and motor of using thereof | |
| CN204068557U (en) | A kind of industrial sewing machine servomotor | |
| CN207039318U (en) | Fan, rotor and permanent magnetic element thereof | |
| CN203009636U (en) | Miniature clutch | |
| CN103615963A (en) | Stator assembly structure of linear differential transformer displacement transducer | |
| CN204761189U (en) | External rotor permanent magnetism direct current motor | |
| CN202475214U (en) | Permanent magnetic DC brushless motor with reverse mounting preventing magnetic ring | |
| CN221728121U (en) | A compact and highly reliable permanent magnet torque motor | |
| CN102290943B (en) | Can the permanent magnet direct current motor of synchronous operation and control | |
| CN203104180U (en) | Coreless motor | |
| CN107911000B (en) | Plug-in type permanent magnet direct current motor | |
| CN206922528U (en) | A kind of motor being bolted | |
| CN204349648U (en) | A kind of compact easily installs motor | |
| CN203398966U (en) | External rotor motor | |
| CN105141053A (en) | Dual-rotor single-stator axial magnetic field permanent magnet slotless motor stator and casing mounting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 |