CN118157400B - Magnetic suspension high-speed permanent magnet motor with water cooling structure - Google Patents
Magnetic suspension high-speed permanent magnet motor with water cooling structure Download PDFInfo
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- CN118157400B CN118157400B CN202410290065.8A CN202410290065A CN118157400B CN 118157400 B CN118157400 B CN 118157400B CN 202410290065 A CN202410290065 A CN 202410290065A CN 118157400 B CN118157400 B CN 118157400B
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- 238000001816 cooling Methods 0.000 title claims abstract description 138
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 239000000725 suspension Substances 0.000 title claims abstract description 29
- 238000005339 levitation Methods 0.000 claims abstract description 46
- 238000012545 processing Methods 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000010365 information processing Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 101100012902 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) FIG2 gene Proteins 0.000 description 1
- 101100233916 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) KAR5 gene Proteins 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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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
- H02K11/25—Devices for sensing temperature, or actuated thereby
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/09—Structural association with bearings with magnetic bearings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
技术领域Technical Field
本发明属于磁悬浮永磁电机的冷却技术领域，具体涉及一种具备水冷结构的磁悬浮高速永磁电机。The invention belongs to the technical field of cooling of magnetic levitation permanent magnet motors, and in particular relates to a magnetic levitation high-speed permanent magnet motor with a water cooling structure.
背景技术Background Art
现代工业中，磁悬浮永磁电机作为一种新型、高效、节能的电机，被越来越广泛地应用于各种场合。但是，在使用过程中，由于许多原因，磁悬浮永磁电机也会出现不同的故障，从而影响设备的正常运行，其中包括高温故障，磁轴承摩擦本身所产生的热量，增加了磁悬浮系统的温度、电机功耗过大导致电机散热不良以及供电电压过高等In modern industry, magnetic levitation permanent magnet motors are increasingly widely used in various occasions as a new type of high-efficiency and energy-saving motor. However, during use, magnetic levitation permanent magnet motors may also have different faults due to many reasons, thus affecting the normal operation of the equipment, including high temperature faults, the heat generated by the friction of the magnetic bearing itself, which increases the temperature of the magnetic levitation system, excessive power consumption of the motor resulting in poor heat dissipation of the motor, and excessive power supply voltage, etc.
因此，需要在磁悬浮永磁电机内增加水冷机构，目前的水冷方式单一，实现简单冷却，冷却效果不佳，而且冷却所需要的能耗高，不适用磁悬浮永磁电机长时间运行。该现象成为本领域人员亟待解决的问题。Therefore, it is necessary to add a water cooling mechanism in the magnetic levitation permanent magnet motor. The current water cooling method is single, which can achieve simple cooling, but the cooling effect is poor, and the energy consumption required for cooling is high, which is not suitable for the long-term operation of the magnetic levitation permanent magnet motor. This phenomenon has become a problem that needs to be solved urgently by people in this field.
发明内容Summary of the invention
本发明的目的在于提供一种具备水冷结构的磁悬浮高速永磁电机，以解决上述背景技术中提出的问题。The object of the present invention is to provide a magnetically suspended high-speed permanent magnet motor with a water-cooling structure to solve the problems raised in the above-mentioned background technology.
为了解决上述技术问题，本发明提供如下技术方案：一种具备水冷结构的磁悬浮高速永磁电机，包括磁悬浮高速永磁电机体以及水冷机构，所述磁悬浮高速永磁电机体包括壳体、电机定子、转子、传感器以及控制系统，所述转子包括磁悬浮轴承；所述水冷机构包括底座、水泵一、水泵二、冷却器、冷却环、冷却管、腔室；所述电机定子、转子、传感器以及控制系统均安装于壳体的内部，所述底座固定安装于壳体的内壁底部，所述水泵一分别与冷却器的后侧、冷却管的右侧软管连接，所述水泵二分别与冷却器的前侧、冷却管的左侧软管连接；所述腔室固定安装于底座的上方，且表面设置有槽口，所述冷却管穿插于槽口内，所述冷却环套接于磁悬浮轴承的外侧，且与冷却管上端管道连接。In order to solve the above technical problems, the present invention provides the following technical solutions: a magnetic levitation high-speed permanent magnet motor with a water-cooling structure, comprising a magnetic levitation high-speed permanent magnet motor body and a water-cooling mechanism, wherein the magnetic levitation high-speed permanent magnet motor body comprises a shell, a motor stator, a rotor, a sensor and a control system, and the rotor comprises a magnetic levitation bearing; the water-cooling mechanism comprises a base, a water pump 1, a water pump 2, a cooler, a cooling ring, a cooling pipe, and a chamber; the motor stator, the rotor, the sensor and the control system are all installed inside the shell, the base is fixedly installed on the bottom of the inner wall of the shell, the water pump 1 is respectively connected to the rear side of the cooler and the right side hose of the cooling pipe, and the water pump 2 is respectively connected to the front side of the cooler and the left side hose of the cooling pipe; the chamber is fixedly installed above the base, and a notch is provided on the surface, the cooling pipe is inserted in the notch, the cooling ring is sleeved on the outside of the magnetic levitation bearing, and is connected to the upper end pipe of the cooling pipe.
本发明进一步说明，所述腔室包括滑轨、滑板、连接块、弹力簧、电动马达以及转盘；所述滑轨固定安装于腔室的内壁前侧，所述连接块通过滑板与滑轨滑动连接，所述冷却管通过弹力簧固定安装于连接块的上方；所述电动马达固定安装于腔室的内壁，所述转盘与电动马达的输出端固定连接，所述转盘的外侧固定有弧形板，且位于连接块的下方，所述连接块的底部固定有弧形块，且与弧形板相互对齐，所述弧形块与腔室的内壁右侧弹簧连接。The present invention further illustrates that the chamber includes a slide rail, a slide plate, a connecting block, an elastic spring, an electric motor and a turntable; the slide rail is fixedly installed on the front side of the inner wall of the chamber, the connecting block is slidably connected to the slide rail through the slide plate, and the cooling pipe is fixedly installed above the connecting block through an elastic spring; the electric motor is fixedly installed on the inner wall of the chamber, the turntable is fixedly connected to the output end of the electric motor, an arc plate is fixed on the outer side of the turntable and is located below the connecting block, an arc block is fixed on the bottom of the connecting block and is aligned with the arc plate, and the arc block is connected to the right side spring of the inner wall of the chamber.
本发明进一步说明，所述转盘的左侧设置有伸缩杆，所述伸缩杆固定安装于腔室的内壁底部，所述伸缩杆的固定有若干齿块，所述转盘的外侧固定有一个齿块，且与伸缩杆的齿块啮合；所述伸缩杆的上端固定有球体一，所述冷却管的下方后侧固定有球体二，所述球体一与球体二相互对齐，且球体一位于球体二的下方。The present invention further illustrates that a telescopic rod is provided on the left side of the turntable, and the telescopic rod is fixedly installed on the bottom of the inner wall of the chamber, and a plurality of tooth blocks are fixed to the telescopic rod. A tooth block is fixed to the outer side of the turntable and meshes with the tooth block of the telescopic rod; a sphere 1 is fixed to the upper end of the telescopic rod, and a sphere 2 is fixed to the lower rear side of the cooling tube, and the sphere 1 and the sphere 2 are aligned with each other, and the sphere 1 is located below the sphere 2.
本发明进一步说明，所述冷却环的内径为磁悬浮轴承的外径的两倍。The present invention further states that the inner diameter of the cooling ring is twice the outer diameter of the magnetic bearing.
本发明进一步说明，所述水冷机构包括温度传感器以及水冷系统，所述温度传感器固定安装于壳体的内部，所述水冷系统包括温度监测模块、中央处理模块、智能控制模块；所述温度监测模块设置于温度传感器内，且与中央处理模块电性连接，所述中央处理模块与智能控制模块电性连接，所述智能控制模块分别与水泵一、水泵二、电动马达电性连接；所述温度监测模块用于通过温度传感器实时监测磁悬浮高速永磁电机内的温度，所述中央处理模块用于根据磁悬浮高速永磁电机内的温度进行信息处理、计算和传输工作，所述智能控制模块用于根据计算的结果分别控制水泵一、水泵二、电动马达智能运行。The present invention further illustrates that the water cooling mechanism includes a temperature sensor and a water cooling system, the temperature sensor is fixedly installed inside the shell, and the water cooling system includes a temperature monitoring module, a central processing module, and an intelligent control module; the temperature monitoring module is arranged in the temperature sensor and is electrically connected to the central processing module, the central processing module is electrically connected to the intelligent control module, and the intelligent control module is electrically connected to water pump one, water pump two, and an electric motor respectively; the temperature monitoring module is used to monitor the temperature inside the magnetic levitation high-speed permanent magnet motor in real time through the temperature sensor, the central processing module is used to perform information processing, calculation and transmission according to the temperature inside the magnetic levitation high-speed permanent magnet motor, and the intelligent control module is used to control the intelligent operation of water pump one, water pump two, and the electric motor according to the calculation results.
本发明进一步说明，所述水冷系统的运行步骤包括：步骤S1、磁悬浮高速永磁电机运行，磁悬浮轴承摩擦本身产生热量，同时水冷系统运行；步骤S2、通过温度传感器实时监测磁悬浮高速永磁电机内的温度，再对测得的温度进行信息处理、计算和传输工作，最后根据计算的结果分别控制水泵一、水泵二的运行频率，以及电动马达正向转动圈数，之后再控制电动马达反向转动，且转动圈数与正向转动圈数相同；步骤S3、磁悬浮高速永磁电机停止运行，同时水冷系统停止运行。The present invention further illustrates that the operation steps of the water cooling system include: step S1, the magnetic levitation high-speed permanent magnet motor is running, the magnetic levitation bearing friction itself generates heat, and the water cooling system is running at the same time; step S2, the temperature inside the magnetic levitation high-speed permanent magnet motor is monitored in real time by a temperature sensor, and then the measured temperature is processed, calculated and transmitted, and finally the operating frequency of water pump 1 and water pump 2, as well as the number of forward rotations of the electric motor are controlled respectively according to the calculation results, and then the electric motor is controlled to rotate in the reverse direction, and the number of rotations is the same as the number of forward rotations; step S3, the magnetic levitation high-speed permanent magnet motor stops running, and the water cooling system stops running at the same time.
本发明进一步说明，所述步骤S2中：其中，C为磁悬浮高速永磁电机的内部实时温度，Cmax为磁悬浮高速永磁电机的内部所能承受最大温度，H为水泵一、水泵二的运行频率，Hmax为水泵一、水泵二的最大运行频率,Q为电动马达正向转动圈数，Qmax为电动马达最大的正向转动圈数。The present invention further illustrates that in step S2: Among them, C is the real-time internal temperature of the magnetic levitation high-speed permanent magnet motor, C max is the maximum temperature that the internal part of the magnetic levitation high-speed permanent magnet motor can withstand, H is the operating frequency of water pump 1 and water pump 2, H max is the maximum operating frequency of water pump 1 and water pump 2, Q is the number of forward rotations of the electric motor, and Q max is the maximum number of forward rotations of the electric motor.
本发明进一步说明，所述步骤S2中：当Qmax≥Q>Qmid时，Qmid为电动马达正向转动的中间圈数值：这时C数值高，电动马达带动转盘转动圈数多，伸缩杆伸出长度长，使球体一的位置高度超过球体二的位置高度；当Q≤Qmid时：球体一与球体二不触碰。The present invention further illustrates that in step S2: when Q max ≥Q>Q mid , Q mid is the value of the middle circle of the forward rotation of the electric motor: at this time, the C value is high, the electric motor drives the turntable to rotate a large number of circles, and the telescopic rod is extended to a long length, so that the position height of sphere one exceeds the position height of sphere two; when Q≤Q mid : sphere one and sphere two do not touch each other.
与现有技术相比，本发明所达到的有益效果是：本发明采用的水冷系统以及水冷机构，冷却时冷却环重复左右移动，可以对磁悬浮轴承左右四周均匀冷却，冷却效果更佳，可以加快冷却效率，并使冷却环上下抖动，冷却环上下抖动过程中，可以使得内部的水翻滚，从而将冷量充分散开，冷却的效果进一步提升，且抖动过程中能够将其表面的灰尘抖落，防止灰尘堆积影响能量传递效果，从而时刻保持高效率冷却，在冷却环上下抖动过程中，其内壁上下不断与磁悬浮轴承的上下外径靠近，从而可以使得磁悬浮轴承受到的冷却效果更强，充分加强冷却，且磁悬浮轴承的外径为冷却环内径的两倍，可以避免在冷却环上下抖动时与磁悬浮轴承表面接触导致碰撞损坏冷却环，起到保护作用；Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the water cooling system and water cooling mechanism adopted by the present invention, the cooling ring repeatedly moves left and right during cooling, can evenly cool the left and right sides of the magnetic suspension bearing, the cooling effect is better, the cooling efficiency can be accelerated, and the cooling ring can be shaken up and down. During the shaking of the cooling ring up and down, the water inside can roll, so that the cold can be fully dispersed, and the cooling effect is further improved. In addition, the dust on its surface can be shaken off during the shaking process to prevent dust accumulation from affecting the energy transfer effect, thereby maintaining high-efficiency cooling at all times. During the shaking of the cooling ring up and down, its inner wall is constantly close to the upper and lower outer diameters of the magnetic suspension bearing, so that the cooling effect of the magnetic suspension bearing can be stronger, and the cooling is fully enhanced. The outer diameter of the magnetic suspension bearing is twice the inner diameter of the cooling ring, which can avoid the cooling ring from contacting with the surface of the magnetic suspension bearing when the cooling ring shakes up and down, resulting in collision and damage to the cooling ring, thereby playing a protective role.
实现自动化智能冷却，冷却环内的冷却水替换频率增大可以最大强度对磁悬浮轴承进行冷却，且冷却环左右移动的次数也越多，从而对转子和磁悬浮轴承周边同样进行冷却，且冷却质量高；一方面可以保障冷却效果，另一方面可以降低悬浮高速永磁电机运行时产生的能耗，节省成本。Automated intelligent cooling is achieved. The frequency of cooling water replacement in the cooling ring increases, so the magnetic bearing can be cooled with maximum intensity. The cooling ring moves left and right more often, thereby cooling the rotor and the surrounding area of the magnetic bearing in the same way, and the cooling quality is high. On the one hand, the cooling effect can be guaranteed, and on the other hand, the energy consumption generated during the operation of the suspended high-speed permanent magnet motor can be reduced, saving costs.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
附图用来提供对本发明的进一步理解，并且构成说明书的一部分，与本发明的实施例一起用于解释本发明，并不构成对本发明的限制。在附图中：The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
图1是本发明的整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the present invention;
图2是本发明的水冷机构整体示意图；FIG2 is an overall schematic diagram of a water cooling mechanism of the present invention;
图3是本发明的腔室内部结构示意图；FIG3 is a schematic diagram of the internal structure of the chamber of the present invention;
图4是本发明的转盘、伸缩杆、连接块之间的位置关系示意图；4 is a schematic diagram of the positional relationship between the turntable, telescopic rod, and connecting block of the present invention;
图5是本发明的伸缩杆伸出与收缩时各结构的运行方向示意图；5 is a schematic diagram of the running direction of each structure when the telescopic rod of the present invention is extended and retracted;
图6是本发明的水冷系统的模块连接关系示意图；FIG6 is a schematic diagram of the module connection relationship of the water cooling system of the present invention;
图中：1、壳体；2、转子；21、磁悬浮轴承；3、底座；4、水泵一；5、水泵二；6、冷却器；7、冷却环；8、冷却管；81、球体二；9、腔室；91、滑轨；92、滑板；93、连接块；931、弧形块；94、弹力簧；95、电动马达；96、转盘；961、弧形板；97、伸缩杆；971、球体一。In the figure: 1, housing; 2, rotor; 21, magnetic bearing; 3, base; 4, water pump 1; 5, water pump 2; 6, cooler; 7, cooling ring; 8, cooling pipe; 81, sphere 2; 9, chamber; 91, slide rail; 92, slide plate; 93, connecting block; 931, arc block; 94, elastic spring; 95, electric motor; 96, turntable; 961, arc plate; 97, telescopic rod; 971, sphere 1.
具体实施方式DETAILED DESCRIPTION
以下结合较佳实施例及其附图对本发明技术方案作进一步非限制性的详细说明。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The following is a non-limiting detailed description of the technical solution of the present invention in conjunction with the preferred embodiments and the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
请参阅图1-6，本发明提供技术方案：一种具备水冷结构的磁悬浮高速永磁电机，包括磁悬浮高速永磁电机体以及水冷机构，磁悬浮高速永磁电机体包括壳体1、电机定子、转子2、传感器以及控制系统，转子2包括磁悬浮轴承21；Please refer to Figures 1-6. The present invention provides a technical solution: a magnetic levitation high-speed permanent magnet motor with a water cooling structure, including a magnetic levitation high-speed permanent magnet motor body and a water cooling mechanism, the magnetic levitation high-speed permanent magnet motor body includes a housing 1, a motor stator, a rotor 2, a sensor and a control system, and the rotor 2 includes a magnetic levitation bearing 21;
水冷机构包括底座3、水泵一4、水泵二5、冷却器6、冷却环7、冷却管8、腔室9；The water cooling mechanism includes a base 3, a water pump 1 4, a water pump 2 5, a cooler 6, a cooling ring 7, a cooling pipe 8, and a chamber 9;
电机定子、转子2、传感器以及控制系统均安装于壳体1的内部，底座3固定安装于壳体1的内壁底部，水泵一4分别与冷却器6的后侧、冷却管8的右侧软管连接，水泵二5分别与冷却器6的前侧、冷却管8的左侧软管连接；The motor stator, rotor 2, sensor and control system are all installed inside the housing 1, the base 3 is fixedly installed on the bottom of the inner wall of the housing 1, the water pump 1 4 is respectively connected to the rear side of the cooler 6 and the right side hose of the cooling pipe 8, and the water pump 2 5 is respectively connected to the front side of the cooler 6 and the left side hose of the cooling pipe 8;
腔室9固定安装于底座3的上方，且表面设置有槽口，冷却管8穿插于槽口内，冷却环7套接于磁悬浮轴承21的外侧，且与冷却管8上端管道连接；The chamber 9 is fixedly installed above the base 3, and a notch is provided on the surface. The cooling pipe 8 is inserted into the notch. The cooling ring 7 is sleeved on the outside of the magnetic bearing 21 and connected to the upper end of the cooling pipe 8.
磁悬浮高速永磁电机运行，电机定子产生一个固定方向的磁场，而转子2产生一个可变方向的磁场，当转子2的磁场与电机定子的磁场方向相同时，两者相互吸引，推动磁悬浮高速永磁电机旋转，当两者磁场方向相反时，则相互排斥，使磁悬浮高速永磁电机处于制动状态，通过控制电机定子磁场的方向和强度，可以控制转子2的位置和速度，磁悬浮高速永磁电机通过在转子2中感应出磁场，并与定子磁场的相互作用，实现转子2的悬浮，从而避免传统电机中转轴与轴承的接触摩擦，提高电机的效率和转速，在磁悬浮高速永磁电机运行时，其内部磁悬浮轴承21摩擦本身所产生的热量，增加了磁悬浮高速永磁电机内部的温度，这时驱动水泵一4和水泵二5同时运行，水泵二5将冷却器6内的水抽出并通过管道注入冷却管8，再由冷却管8流进冷却环7内，对磁悬浮轴承21周围进行冷却，降低其温度，之后通过水泵一4将冷却管8以及冷却环7内的水抽出，并通过软管重新注入到冷却器6内，由冷却器6对水进行换热冷却，周而复始，对磁悬浮轴承21周围进行自动化高效散热，充分保护磁悬浮高速永磁电机，避免电机功耗过大导致电机散热不良损坏电机，防止供电电压过高。When the magnetic levitation high-speed permanent magnet motor is running, the motor stator generates a magnetic field with a fixed direction, while the rotor 2 generates a magnetic field with a variable direction. When the magnetic field of the rotor 2 is in the same direction as the magnetic field of the motor stator, the two attract each other and drive the magnetic levitation high-speed permanent magnet motor to rotate. When the magnetic fields of the two are in opposite directions, they repel each other, putting the magnetic levitation high-speed permanent magnet motor in a braking state. By controlling the direction and intensity of the magnetic field of the motor stator, the position and speed of the rotor 2 can be controlled. The magnetic levitation high-speed permanent magnet motor induces a magnetic field in the rotor 2 and interacts with the stator magnetic field to achieve the suspension of the rotor 2, thereby avoiding the contact friction between the rotating shaft and the bearing in the traditional motor and improving the efficiency and speed of the motor. When the magnetic levitation high-speed permanent magnet motor is running, its The heat generated by the friction of the internal magnetic bearing 21 increases the temperature inside the magnetic levitation high-speed permanent magnet motor. At this time, water pump 1 4 and water pump 2 5 are driven to run simultaneously. Water pump 2 5 draws water out of the cooler 6 and injects it into the cooling pipe 8 through a pipeline. The water then flows into the cooling ring 7 from the cooling pipe 8 to cool the magnetic bearing 21 and reduce its temperature. After that, the water in the cooling pipe 8 and the cooling ring 7 is drawn out by water pump 1 4 and re-injected into the cooler 6 through a hose. The cooler 6 cools the water by heat exchange. This cycle repeats itself to automatically and efficiently dissipate heat around the magnetic bearing 21, fully protecting the magnetic levitation high-speed permanent magnet motor, avoiding damage to the motor caused by poor heat dissipation due to excessive power consumption of the motor, and preventing the power supply voltage from being too high.
腔室9包括滑轨91、滑板92、连接块93、弹力簧94、电动马达95以及转盘96；The chamber 9 includes a slide rail 91, a slide plate 92, a connecting block 93, an elastic spring 94, an electric motor 95 and a rotating disk 96;
滑轨91固定安装于腔室9的内壁前侧，连接块93通过滑板92与滑轨91滑动连接，冷却管8通过弹力簧94固定安装于连接块93的上方；The slide rail 91 is fixedly installed on the front side of the inner wall of the chamber 9, the connecting block 93 is slidably connected to the slide rail 91 through the slide plate 92, and the cooling pipe 8 is fixedly installed above the connecting block 93 through the elastic spring 94;
电动马达95固定安装于腔室9的内壁，转盘96与电动马达95的输出端固定连接，转盘96的外侧固定有弧形板961，且位于连接块93的下方，连接块93的底部固定有弧形块931，且与弧形板961相互对齐，弧形块931与腔室9的内壁右侧弹簧连接；The electric motor 95 is fixedly mounted on the inner wall of the chamber 9, the turntable 96 is fixedly connected to the output end of the electric motor 95, an arc plate 961 is fixed to the outer side of the turntable 96 and is located below the connecting block 93, an arc block 931 is fixed to the bottom of the connecting block 93 and is aligned with the arc plate 961, and the arc block 931 is connected to the right side of the inner wall of the chamber 9 by a spring;
水冷过程中，电动马达95运行，带动转盘96转动，转盘96带动弧形板961绕其中心转动，直至与弧形块931接触，并相互挤压推动弧形块931向右侧移动，弹簧受力形变，同时弧形块931带动连接块93向右侧移动，通过弹力簧94带动冷却管8向右侧移动，从而带动冷却环7向右侧移动，当弧形板961转动至与弧形块931脱离接触后，弹簧产生反作用力推动弧形块931向左侧移动快速移动，反作用力推动弧形块931移动至最左侧，使冷却环7左右移动，电动马达95持续转动，从而带动冷却环7重复左右移动，可以对磁悬浮轴承21左右四周均匀冷却，冷却效果更佳，可以加快冷却效率。During the water cooling process, the electric motor 95 runs, driving the turntable 96 to rotate, and the turntable 96 drives the arc plate 961 to rotate around its center until it contacts the arc block 931, and squeezes each other to push the arc block 931 to move to the right. The spring is deformed under force, and at the same time, the arc block 931 drives the connecting block 93 to move to the right, and drives the cooling pipe 8 to move to the right through the elastic spring 94, thereby driving the cooling ring 7 to move to the right. When the arc plate 961 rotates to disengage from the arc block 931, the spring generates a reaction force to push the arc block 931 to move quickly to the left, and the reaction force pushes the arc block 931 to move to the far left, causing the cooling ring 7 to move left and right. The electric motor 95 continues to rotate, thereby driving the cooling ring 7 to repeatedly move left and right, which can evenly cool the left and right sides of the magnetic suspension bearing 21, and the cooling effect is better, which can speed up the cooling efficiency.
转盘96的左侧设置有伸缩杆97，伸缩杆97固定安装于腔室9的内壁底部，伸缩杆97的固定有若干齿块，转盘96的外侧固定有一个齿块，且与伸缩杆97的齿块啮合；A telescopic rod 97 is provided on the left side of the rotating disk 96. The telescopic rod 97 is fixedly mounted on the bottom of the inner wall of the chamber 9. A plurality of tooth blocks are fixed to the telescopic rod 97. A tooth block is fixed to the outer side of the rotating disk 96 and meshes with the tooth block of the telescopic rod 97.
伸缩杆97的上端固定有球体一971，冷却管8的下方后侧固定有球体二81，球体一971与球体二81相互对齐，且球体一971位于球体二81的下方；A sphere 1 971 is fixed to the upper end of the telescopic rod 97, and a sphere 2 81 is fixed to the lower rear side of the cooling tube 8. The sphere 1 971 and the sphere 2 81 are aligned with each other, and the sphere 1 971 is located below the sphere 2 81;
转盘96转动过程中，带动其一个齿绕其中心转动，当这个齿与伸缩杆97右侧的齿啮合时带动伸缩杆97向上小幅度伸长，电动马达95转动若干圈后，使得伸缩杆97伸至最长，从而带动球体一971向上移动至最高，这时球体一971的位置高度超过球体二81，冷却管8左右移动时，带动球体二81与球体一971相互挤压碰撞，从而使得冷却管8通过弹力簧94上下抖动，使冷却环7上下抖动，冷却环7上下抖动过程中，可以使得内部的水翻滚，从而将冷量充分散开，冷却的效果进一步提升，且抖动过程中能够将其表面的灰尘抖落，防止灰尘堆积影响能量传递效果，从而时刻保持高效率冷却。During the rotation of the turntable 96, one of its teeth is driven to rotate around its center, and when this tooth engages with the tooth on the right side of the telescopic rod 97, the telescopic rod 97 is driven to extend slightly upward. After the electric motor 95 rotates several times, the telescopic rod 97 is extended to its longest position, thereby driving the ball 1 971 to move upward to the highest point. At this time, the position height of the ball 1 971 exceeds the ball 2 81. When the cooling tube 8 moves left and right, it drives the ball 2 81 and the ball 1 971 to squeeze and collide with each other, so that the cooling tube 8 is shaken up and down through the elastic spring 94, and the cooling ring 7 is shaken up and down. During the shaking of the cooling ring 7, the water inside can roll, so that the cold is fully dispersed, and the cooling effect is further improved. In addition, the dust on the surface can be shaken off during the shaking process to prevent dust accumulation from affecting the energy transfer effect, thereby maintaining high-efficiency cooling at all times.
冷却环7的内径为磁悬浮轴承21的外径的两倍；The inner diameter of the cooling ring 7 is twice the outer diameter of the magnetic bearing 21;
在冷却环7上下抖动过程中，其内壁上下不断与磁悬浮轴承21的上下外径靠近，从而可以使得磁悬浮轴承21受到的冷却效果更强，充分加强冷却，且磁悬浮轴承21的外径为冷却环7内径的两倍，可以避免在冷却环7上下抖动时与磁悬浮轴承21表面接触导致碰撞损坏冷却环7，起到保护作用。During the up and down shaking process of the cooling ring 7, its inner wall constantly approaches the upper and lower outer diameters of the magnetic bearing 21, so that the cooling effect of the magnetic bearing 21 can be stronger and the cooling can be fully enhanced. The outer diameter of the magnetic bearing 21 is twice the inner diameter of the cooling ring 7, which can avoid contact with the surface of the magnetic bearing 21 when the cooling ring 7 shakes up and down, resulting in collision and damage to the cooling ring 7, thereby playing a protective role.
水冷机构包括温度传感器以及水冷系统，温度传感器固定安装于壳体1的内部，水冷系统包括温度监测模块、中央处理模块、智能控制模块；The water cooling mechanism includes a temperature sensor and a water cooling system. The temperature sensor is fixedly installed inside the housing 1. The water cooling system includes a temperature monitoring module, a central processing module, and an intelligent control module.
温度监测模块设置于温度传感器内，且与中央处理模块电性连接，中央处理模块与智能控制模块电性连接，智能控制模块分别与水泵一4、水泵二5、电动马达95电性连接；The temperature monitoring module is arranged in the temperature sensor and is electrically connected to the central processing module, the central processing module is electrically connected to the intelligent control module, and the intelligent control module is electrically connected to the water pump 1 4, the water pump 2 5, and the electric motor 95 respectively;
温度监测模块用于通过温度传感器实时监测磁悬浮高速永磁电机内的温度，中央处理模块用于根据磁悬浮高速永磁电机内的温度进行信息处理、计算和传输工作，智能控制模块用于根据计算的结果分别控制水泵一4、水泵二5、电动马达95智能运行。The temperature monitoring module is used to monitor the temperature inside the magnetic levitation high-speed permanent magnet motor in real time through a temperature sensor. The central processing module is used to process, calculate and transmit information according to the temperature inside the magnetic levitation high-speed permanent magnet motor. The intelligent control module is used to control the intelligent operation of water pump 1 4, water pump 2 5 and electric motor 95 according to the calculation results.
水冷系统的运行步骤包括：The operation steps of the water cooling system include:
步骤S1、磁悬浮高速永磁电机运行，磁悬浮轴承21摩擦本身产生热量，同时水冷系统运行；Step S1, the magnetic suspension high-speed permanent magnet motor is running, the magnetic suspension bearing 21 generates heat by friction itself, and the water cooling system is running at the same time;
步骤S2、通过温度传感器实时监测磁悬浮高速永磁电机内的温度，再对测得的温度进行信息处理、计算和传输工作，最后根据计算的结果分别控制水泵一4、水泵二5的运行频率，以及电动马达95正向转动圈数，之后再控制电动马达95反向转动，且转动圈数与正向转动圈数相同；Step S2, monitor the temperature in the magnetic suspension high-speed permanent magnet motor in real time through the temperature sensor, then process, calculate and transmit the measured temperature, and finally control the operating frequency of the water pump 1 4 and the water pump 2 5, and the number of forward rotations of the electric motor 95 according to the calculation results, and then control the electric motor 95 to rotate in the reverse direction, and the number of rotations is the same as the number of forward rotations;
步骤S3、磁悬浮高速永磁电机停止运行，同时水冷系统停止运行。Step S3: the magnetic suspension high-speed permanent magnet motor stops running, and the water cooling system stops running at the same time.
步骤S2中：In step S2:
其中，C为磁悬浮高速永磁电机的内部实时温度，Cmax为磁悬浮高速永磁电机的内部所能承受最大温度，H为水泵一4、水泵二5的运行频率，Hmax为水泵一4、水泵二5的最大运行频率,Q为电动马达95正向转动圈数，Qmax为电动马达95最大的正向转动圈数；Wherein, C is the internal real-time temperature of the magnetic levitation high-speed permanent magnet motor, C max is the maximum temperature that the internal part of the magnetic levitation high-speed permanent magnet motor can withstand, H is the operating frequency of water pump 1 4 and water pump 2 5, H max is the maximum operating frequency of water pump 1 4 and water pump 2 5, Q is the number of positive rotations of the electric motor 95, and Q max is the maximum number of positive rotations of the electric motor 95;
悬浮高速永磁电机的内部温度越高，水泵一4和水泵二5运行频率越高，同时电动马达95正向转动圈数越多，冷却环7内的冷却水替换频率增大可以最大强度对磁悬浮轴承21进行冷却，且冷却环7左右移动的次数也越多，从而对转子2和磁悬浮轴承21周边同样进行冷却，且冷却质量高；The higher the internal temperature of the suspended high-speed permanent magnet motor, the higher the operating frequency of the water pump 1 4 and the water pump 2 5, and the more the number of positive rotations of the electric motor 95, the greater the frequency of replacement of cooling water in the cooling ring 7, and the greater the number of left and right movements of the cooling ring 7, so that the rotor 2 and the periphery of the magnetic suspension bearing 21 are also cooled, and the cooling quality is high;
反之，水泵一4和水泵二5运行频率越低，同时电动马达95正向转动圈数越少，一方面可以保障冷却效果，另一方面可以降低悬浮高速永磁电机运行时产生的能耗，节省成本。On the contrary, the lower the operating frequency of water pump 1 4 and water pump 2 5, and the fewer the number of positive rotations of electric motor 95, on the one hand, the cooling effect can be guaranteed, and on the other hand, the energy consumption generated when the suspended high-speed permanent magnet motor is running can be reduced, saving costs.
步骤S2中：In step S2:
当Qmax≥Q>Qmid时，Qmid为电动马达95正向转动的中间圈数值：这时C数值高，电动马达95带动转盘96转动圈数多，伸缩杆97伸出长度长，使球体一971的位置高度超过球体二81的位置高度；When Q max ≥ Q> Q mid , Q mid is the value of the middle circle of the forward rotation of the electric motor 95: at this time, the C value is high, the electric motor 95 drives the turntable 96 to rotate more circles, and the telescopic rod 97 is extended to a long length, so that the height of the position of the ball 1 971 exceeds the height of the position of the ball 2 81;
当Q≤Qmid时：球体一971与球体二81不触碰；When Q≤Q mid : sphere one 971 and sphere two 81 do not touch;
悬浮高速永磁电机的内部温度较高时，转盘96转动圈数较多，从而可以使伸缩杆97伸至最长，使球体二81能够触碰到球体一971，一方面能够抖动冷却环7内的水，进行高效散热冷却，另一方面在悬浮高速永磁电机的内部温度不高时，冷却效果够，这时无需球体二81与球体一971的接触，从而相对减少两者的磨损，提高结构的使用寿命。When the internal temperature of the suspended high-speed permanent magnet motor is high, the turntable 96 rotates more times, so that the telescopic rod 97 can be extended to the longest, so that the second ball 81 can touch the first ball 971. On the one hand, it can shake the water in the cooling ring 7 for efficient heat dissipation and cooling. On the other hand, when the internal temperature of the suspended high-speed permanent magnet motor is not high, the cooling effect is sufficient. At this time, there is no need for the second ball 81 to contact the first ball 971, thereby relatively reducing the wear of the two and improving the service life of the structure.
在本发明的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
最后需要指出的是：以上实施例仅用以说明本发明的技术方案，而非对其限制。尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, and these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
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| CN117254633B (en) * | 2023-09-28 | 2024-03-12 | 凌远科技股份有限公司 | Bearing power switching device |
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2024
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115289044A (en) * | 2022-08-15 | 2022-11-04 | 深圳飞磁科技有限公司 | A kind of air suspension centrifugal blower with double-head high-efficiency self-cooling separation ventilation structure |
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