WO2020125085A1 - 一种磁悬浮径向传感器的安装结构 - Google Patents

一种磁悬浮径向传感器的安装结构 Download PDF

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Publication number
WO2020125085A1
WO2020125085A1 PCT/CN2019/105502 CN2019105502W WO2020125085A1 WO 2020125085 A1 WO2020125085 A1 WO 2020125085A1 CN 2019105502 W CN2019105502 W CN 2019105502W WO 2020125085 A1 WO2020125085 A1 WO 2020125085A1
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Prior art keywords
sensor
pcb board
radial
temperature sensor
bracket
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PCT/CN2019/105502
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English (en)
French (fr)
Inventor
张强
刘淑云
吴立华
董继勇
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南京磁谷科技有限公司
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Publication of WO2020125085A1 publication Critical patent/WO2020125085A1/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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • 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
    • H02K11/0094—Structural association with other electrical or electronic devices
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • 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
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25—Devices for sensing temperature, or actuated thereby

Definitions

  • the invention relates to a mounting structure of a magnetic suspension radial sensor.
  • Radial magnetic bearing sensor components mostly use the ring plate bracket structure, install the sensor around the bracket, install the PCB board on the end face and seal with glue. It is then installed on the upper cover plate of the radial magnetic bearing and used for monitoring the change of the radial displacement of the rotor.
  • the sensor component adopts an integral disc bracket structure, which has a large component and a large space. It is installed on the end surface of the radial magnetic bearing and hinders the cooling air flow of the magnetic bearing.
  • the parts are sealed with a large area of glue. The cooling and shrinkage of the glue may damage the circuit connection of the PCB board. If only one of the parts is damaged, the whole part needs to be replaced, which increases the cost.
  • the present invention is to provide a mounting structure of a magnetic suspension radial sensor in order to solve the above problems in the prior art.
  • a magnetic suspension radial sensor installation structure includes a radial magnetic bearing upper cover plate, a sensor bracket, a temperature sensor, a displacement sensor and a PCB board, and four sensor brackets are along the radial magnetic bearing
  • the circumferential direction of the upper cover plate is evenly fixed on the radial magnetic bearing upper cover plate, and a temperature sensor, a displacement sensor and a PCB board are fixedly connected to each sensor bracket, and the temperature sensor and the displacement sensor are connected to the PCB board on;
  • the sensor bracket is provided with a mounting groove and a cable arranging hole.
  • the temperature sensor, the displacement sensor and the PCB board are arranged in the mounting groove, and the potting glue is filled in the mounting groove, and the leads of the temperature sensor and the displacement sensor are discharged through the cable arranging hole.
  • the mounting groove includes a first groove body and a second groove body penetrating each other, the first groove body is placed on the upper end surface of the sensor bracket, the second groove body is placed on the side wall surface of the sensor bracket, and the PCB board is placed In the first tank body, the temperature sensor and the displacement sensor are placed in the second tank body.
  • the sensor bracket has a T-shaped structure.
  • the invention has the following beneficial effects: one bracket is made into four identical small ones, which saves space and is convenient for installation and disassembly; and one of the sensors can be replaced separately after being damaged, and does not need to be replaced completely like the old sensor parts. Every versatility is high.
  • designing a new radial magnetic bearing it is only necessary to leave a slot for installing the sensor bracket.
  • Figure 1 is a structural diagram of the present invention.
  • Fig. 2 is a structural diagram of a sensor holder in the present invention.
  • FIG. 3 is a cross-sectional view of the sensor bracket in the present invention.
  • a mounting structure of a magnetic suspension radial sensor of the present invention includes a radial magnetic bearing upper cover plate 1, a sensor bracket 2, a temperature sensor, a displacement sensor, and a PCB board 3, along with four sensor brackets 2
  • the circumferential direction of the radial magnetic bearing upper cover plate 1 is uniformly fixed on the radial magnetic bearing upper cover plate 1, and a temperature sensor, a displacement sensor and a PCB board 3 are fixedly connected to each sensor bracket 2 and the temperature sensor And the displacement sensor are connected on the PCB 3.
  • the sensor bracket 2 in the present invention has a T-shaped structure.
  • the sensor bracket 2 is provided with a mounting groove 21 and a wire hole 22.
  • the temperature sensor, displacement sensor and PCB board 3 are provided in the mounting groove 21 and filled in the mounting groove 21
  • the potting glue is used to encapsulate and fix the temperature sensor, displacement sensor and PCB board 3.
  • the leads of the temperature sensor and the displacement sensor are discharged through the cable hole 22.
  • the mounting groove 21 includes a first groove body 211 and a second groove body 212 penetrating each other.
  • the first groove body 211 is placed on the upper end surface of the sensor bracket 2
  • the second groove body 212 is placed on the side wall surface of the sensor bracket 2
  • the PCB The plate 3 is placed in the first tank 211, and the temperature sensor and the displacement sensor are placed in the second tank 212.
  • the invention divides the old integral sensor bracket 1 into 4 and makes 4 separate sensor brackets, the bracket is installed on the upper cover plate of the radial magnetic bearing; each bracket is installed with a temperature sensor and a displacement sensor, and 4 displacement sensors Monitor the rotor displacement changes in four radial directions.
  • One bracket is made of 4 identical small ones, saving space, convenient for installation and disassembly; and one of the sensors can be replaced separately after being damaged. It is not necessary to replace all the same as the old sensor parts. Every versatility is high.
  • it is only necessary to leave a slot for installing the sensor bracket.
  • There is no need to design a new sensor bracket that is, the installation position of the sensor bracket in the radial direction can follow the radial magnetic bearing. The size changes and moves without changing itself.
  • the PCB board becomes smaller, the amount of glue to be sealed is reduced, and the amount of glue shrinkage is less, that is, the solder wire on the PCB board is firmly connected.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

一种磁悬浮径向传感器的安装结构，四个传感器支架(2)沿着径向磁轴承上盖板(1)的圆周方向均匀固定于径向磁轴承上盖板(1)上，在每个传感器支架(2)上均固定连接一个温度传感器、一个位移传感器和一个PCB板(3)，且温度传感器和位移传感器均连接在PCB板(3)上；传感器支架(2)上设有安装槽(21)和排线孔(22)，温度传感器、位移传感器和PCB板(3)设于安装槽(21)内，在安装槽(21)内填充灌封胶，温度传感器和位移传感器的引线经排线孔(22)排出。该磁悬浮径向传感器的安装结构将一个支架做成4个相同的小的支架，节省空间，方便安装与拆卸，且其中一个传感器损坏后可以单独替换，无需像旧传感器部件一样，需要全部更换。

Description

一种磁悬浮径向传感器的安装结构 技术领域：
本发明涉及一种磁悬浮径向传感器的安装结构。
背景技术：
径向磁轴承传感器部件多采用环形板支架结构，在支架四周安装传感器，端面上安装PCB板并灌胶密封。然后安装在径向磁轴承上盖板上，用于转子的径向位移变化的监测。
传感器部件采用整体圆盘支架结构，部件大，占空间大，安装在径向磁轴承端面，阻碍磁轴承的冷却风流动。部件内部采用大面积灌胶密封的方式，胶冷却收缩可能会破坏PCB板的线路连接，若部件只是其中一个零件损坏，则需要整体更换部件，成本增加。
发明内容：
本发明是为了解决上述现有技术存在的问题而提供一种磁悬浮径向传感器的安装结构。
本发明所采用的技术方案有：一种磁悬浮径向传感器的安装结构，包括径向磁轴承上盖板、传感器支架、温度传感器、位移传感器和PCB板，四个传感器支架沿着径向磁轴承上盖板的圆周方向均匀固定于径向磁轴承上盖板上，在每个传感器支架上均固定连接一个温度传感器、一个位移传感器和一个PCB板，且温度传感器和位移传感器均连接在PCB板上；
所述传感器支架上设有安装槽和排线孔，温度传感器、位移传感器和PCB板设于安装槽内，在安装槽内填充灌封胶，温度传感器和位移传感器的引线经排线孔排出。
进一步地，所述安装槽包括相互贯通的第一槽体和第二槽体，第一槽体置于传感器支架的上端面上，第二槽体置于传感器支架的侧壁面上，PCB板置于第一槽体内，温度传感器和位移传感器置于第二槽体内。
进一步地，所述传感器支架为T形状结构。
本发明具有如下有益效果：一个支架做成4个相同的小的，节省空间，方便安装与拆卸；且其中一个传感器损坏后可以单独替换，无需像旧传感器部件一样，需要全部更换。每个通用性较高，设计新的径向磁轴承时，只需留有安装传感器支架槽口即可，无需设计新的传感器支架，即传感器支架在径向上的安装位置可随径向磁轴承尺寸变化而移动，而本身无需变化。
附图说明：
图1为本发明结构图。
图2为本发明中传感器支架的结构图。
图3为本发明中传感器支架的剖视图。
具体实施方式：
下面结合附图对本发明作进一步的说明。
如图1至图3，本发明一种磁悬浮径向传感器的安装结构，包括径向磁轴承上盖板1、传感器支架2、温度传感器、位移传感器和PCB板3，四个传感器支架2沿着径向磁轴承上盖板1的圆周方向均匀固定于径向磁轴承上盖板1上，在每个传感器支架2上均固定连接一个温度传感器、一个位移传感器和一个PCB板3，且温度传感器和位移传感器均连接在PCB板3上。
本发明中的传感器支架2为T形状结构，在传感器支架2上设有安装槽21和排线孔22，温度传感器、位移传感器和PCB板3设于安装槽21内，在安装槽21内填充灌封胶，进而将温度传感器、位移传感器和PCB板3封装固定。温度传感器和位移传感器的引线经排线孔22排出。
安装槽21包括相互贯通的第一槽体211和第二槽体212，第一槽体211置于传感器支架2的上端面上，第二槽体212置于传感器支架2的侧壁面上，PCB板3置于第一槽体211内，温度传感器和位移传感器置于第二槽体212内。
本发明将旧的整体的传感器支架1分为4，做成4个单独的传感器支架，支架安装在径向磁轴承上盖板上；每个支架上安装温度传感器和位移传感器，4个位移传感器在 径向的四个方向上分别监测转子的位移变化。
一个支架做成4个相同的小的，节省空间，方便安装与拆卸；且其中一个传感器损坏后可以单独替换，无需像旧传感器部件一样，需要全部更换。每个通用性较高，设计新的径向磁轴承时，只需留有安装传感器支架槽口即可，无需设计新的传感器支架，即传感器支架在径向上的安装位置可随径向磁轴承尺寸变化而移动，而本身无需变化。
做成每个小部件，PCB板变小，需灌胶密封的胶减少，胶收缩量少，即PCB板上的焊线连接牢固。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下还可以作出若干改进，这些改进也应视为本发明的保护范围。

Claims (3)

  1. 一种磁悬浮径向传感器的安装结构，其特征在于：包括径向磁轴承上盖板(1)、传感器支架(2)、温度传感器、位移传感器和PCB板(3)，四个传感器支架(2)沿着径向磁轴承上盖板(1)的圆周方向均匀固定于径向磁轴承上盖板(1)上，在每个传感器支架(2)上均固定连接一个温度传感器、一个位移传感器和一个PCB板(3)，且温度传感器和位移传感器均连接在PCB板(3)上；
    所述传感器支架(2)上设有安装槽(21)和排线孔(22)，温度传感器、位移传感器和PCB板(3)设于安装槽(21)内，在安装槽(21)内填充灌封胶，温度传感器和位移传感器的引线经排线孔(22)排出。
  2. 如权利要求1所述的磁悬浮径向传感器的安装结构，其特征在于：所述安装槽(21)包括相互贯通的第一槽体(211)和第二槽体(212)，第一槽体(211)置于传感器支架(2)的上端面上，第二槽体(212)置于传感器支架(2)的侧壁面上，PCB板(3)置于第一槽体(211)内，温度传感器和位移传感器置于第二槽体(212)内。
  3. 如权利要求1所述的磁悬浮径向传感器的安装结构，其特征在于：所述传感器支架(2)为T形状结构。
PCT/CN2019/105502 2018-12-18 2019-09-12 一种磁悬浮径向传感器的安装结构 WO2020125085A1 (zh)

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CN109639060A (zh) * 2018-12-18 2019-04-16 南京磁谷科技有限公司 一种磁悬浮径向传感器的安装结构
CN111023957B (zh) * 2019-12-20 2021-05-28 北京航空航天大学 一种耐高温径向位移传感器装置
CN111197969B (zh) * 2020-01-07 2021-06-22 中车株洲电机有限公司 一种磁悬浮轴承转子位置检测装置

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