Magnetic bearing water pump

Abstract

The utility model relates to fluid conveying equipment technical field, specifically disclose a kind of magnetic bearing water pump, including outer frame, the two sides of outer frame are respectively provided with upper cover and lower cover, and upper cover and lower cover are enclosed to form mounting cavity;Stator assembly is arranged in the center position of mounting cavity, the outside of stator assembly is fixedly provided with zirconia ceramic bearing inner ring, the two sides of zirconia ceramic bearing inner ring are fixedly connected with upper cover and lower cover, the outside of zirconia ceramic bearing inner ring outer wall is provided with magnetic bearing outer ring, zirconia ceramic ball is arranged between zirconia ceramic bearing inner ring and magnetic bearing outer ring, the outer wall of magnetic bearing outer ring is fixedly provided with fan blade, to this can reduce and optimize the internal structure of water pump or fan, effectively compress water pump or fan self compression volume, so that the water pump or fan of this kind can be made to thinner volume small pump has greater advantage under various environments, more easily accepted by market.

Description

Technical Field

[0001] This utility model relates to the field of fluid transport equipment technology, and in particular to a magnetic bearing water pump. Background Technology

[0002] Traditional water pumps or fans typically use mechanical bearing structures, requiring specialized support frames or brackets to install the bearings. This results in a large overall size and thickness of the equipment, making it difficult to adapt to the installation requirements of confined spaces.

[0003] Meanwhile, mechanical bearings experience significant frictional losses during operation, which not only affects equipment efficiency but also shortens its lifespan. Although some existing technologies incorporate magnetic bearing designs, they still fall short in terms of structural optimization, space compression, and rotational stability, failing to fully meet market demands for miniaturized, high-efficiency equipment. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic bearing water pump, which aims to solve the technical problems in the prior art.

[0005] To achieve the above objectives, this utility model employs a magnetic bearing water pump, which includes an outer frame, with an upper cover and a lower cover respectively provided on both sides of the outer frame, the upper cover and the lower cover forming an installation cavity.

[0006] A stator assembly is located at the center of the mounting cavity. A zirconia ceramic bearing inner ring is fixedly mounted on the outer side of the stator assembly. The two sides of the zirconia ceramic bearing inner ring are fixedly connected to the upper cover and the lower cover. A magnetic bearing outer ring is mounted on the outer side of the outer wall of the zirconia ceramic bearing inner ring. Zirconia ceramic balls are disposed between the zirconia ceramic bearing inner ring and the magnetic bearing outer ring. A fan blade is fixedly mounted on the outer wall of the magnetic bearing outer ring.

[0007] The outer side wall of the inner ring of the zirconia ceramic bearing and the inner side wall of the outer ring of the magnetic bearing are both provided with annular grooves adapted to the zirconia ceramic balls.

[0008] The stator assembly includes an iron core, the inner ring of which is an annular structure, and multiple T-shaped structures are uniformly arranged on the outer side of the annular structure of the inner ring of the iron core.

[0009] The iron core has stator pressure rings on both sides, and coils are sleeved on the outside of the iron core and the stator pressure rings.

[0010] The outer frame has an inlet pipe and an outlet pipe connected to each other on the same side.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. By setting a non-magnetic zirconia ceramic bearing inner ring and zirconia ceramic balls between the stator assembly and the outer ring of the magnetic bearing, the support frame or support bracket required by traditional mechanical bearings is eliminated, which greatly reduces the overall thickness and volume of the equipment, making it flexibly installed in various narrow spaces and adaptable to more application scenarios.

[0013] 2. The friction coefficient between the zirconia ceramic balls and the inner ring of the zirconia ceramic bearing and the outer ring of the magnetic bearing is extremely low, and there is no mechanical contact wear. Compared with traditional mechanical bearings, the friction loss during rotation is greatly reduced, effectively reducing energy waste, improving the conversion efficiency of electrical energy to mechanical energy, reducing the wear rate of components, and extending the service life of equipment.

[0014] 3. The annular grooves on the inner ring of the zirconia ceramic bearing and the outer ring of the magnetic bearing provide precise positioning for the zirconia ceramic balls, ensuring that the balls roll stably within a fixed trajectory and preventing tilting, jamming, or deviation during rotation. At the same time, the T-shaped structure of the stator pressure ring for compacting and fixing the iron core optimizes the magnetic field distribution, making the magnetic field generated by the coil more uniform and the magnetic repulsion force with the outer ring of the magnetic bearing more stable, further ensuring the smoothness and reliability of the equipment operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a magnetic bearing water pump according to this utility model.

[0017] Figure 2 This is a structural cross-sectional view of a magnetic bearing water pump according to this utility model.

[0018] Figure 3 This is a partial structural schematic diagram of a magnetic bearing water pump according to this utility model.

[0019] Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point A.

[0020] Figure 5 This is a partial structural schematic diagram of the stator assembly of this utility model.

[0021] Figure 6 This utility model relates to an explosion of a magnetic bearing water pump. Figure 1 .

[0022] Figure 7 This utility model relates to an explosion of a magnetic bearing water pump. Figure 2 .

[0023] 101-Outer frame, 102-Upper cover, 103-Lower cover, 104-Stator assembly, 105-Inner ring of zirconia ceramic bearing, 106-Outer ring of magnetic bearing, 107-Zirconium oxide ceramic ball, 108-Fan blade, 109-Iron core, 110-Stator pressure ring, 111-Coil, 112-Connecting inlet pipe, 113-Connecting outlet pipe, 114-Mounting cavity, 115-Annular groove. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figures 1-7 ,in Figure 1 This is a structural schematic diagram of a magnetic bearing water pump according to this utility model. Figure 2 This is a structural cross-sectional view of a magnetic bearing water pump according to this utility model. Figure 3 This is a partial structural schematic diagram of a magnetic bearing water pump according to this utility model. Figure 4 This is the utility model Figure 3 Enlarged view of the local structure at point A. Figure 5 This is a partial structural schematic diagram of the stator assembly of this utility model. Figure 6 This utility model relates to an explosion of a magnetic bearing water pump. Figure 1 , Figure 7 This utility model relates to an explosion of a magnetic bearing water pump. Figure 2 .

[0026] In this embodiment, an outer frame 101 is included. An upper cover 102 and a lower cover 103 are respectively provided on both sides of the outer frame 101. The upper cover 102 and the lower cover 103 enclose a mounting cavity 114. A stator assembly 104 is disposed at the center of the mounting cavity 114. A zirconia ceramic bearing inner ring 105 is fixedly disposed on the outer side of the stator assembly 104. The two sides of the zirconia ceramic bearing inner ring 105 are fixedly connected to the upper cover 102 and the lower cover 103. A magnetic bearing outer ring 106 is disposed on the outer side of the outer wall of the zirconia ceramic bearing inner ring 105. Zirconia ceramic balls 107 are disposed between the zirconia ceramic bearing inner ring 105 and the magnetic bearing outer ring 106. A fan blade 10 is fixedly disposed on the outer wall of the magnetic bearing outer ring 106. 8. The outer frame 101, the upper cover 102, and the lower cover 103 constitute the external support and protection structure of the equipment. The enclosed mounting cavity 114 provides a stable mounting space for the internal core components. The stator assembly 104 serves as the core carrier of the power source. The inner ring 105 of the zirconia ceramic bearing fixed on its outer side is made of non-magnetic material. Together with the outer ring 106 of the magnetic bearing and the zirconia ceramic balls 107, it replaces the support frame structure of the traditional mechanical bearing. Rotation is achieved through the magnetic principle, effectively compressing the volume of the equipment. The fan blade 108 is fixedly connected to the outer ring 106 of the magnetic bearing to realize the fluid transportation function. In this way, the application of non-magnetic zirconia ceramic components effectively breaks the space limitation of the traditional structure and realizes the miniaturization and thinning of the equipment.

[0027] The outer side wall of the zirconia ceramic bearing inner ring 105 and the inner side wall of the magnetic bearing outer ring 106 are both provided with annular grooves 115 adapted to the zirconia ceramic balls 107. The size of the annular grooves 115 is precisely matched with the diameter of the zirconia ceramic balls 107, which can effectively limit the movement range of the zirconia ceramic balls 107 and avoid problems such as deviation and falling off during rolling. The bidirectional design of the annular grooves 115 makes the zirconia ceramic balls 107 more evenly stressed, which can effectively improve the stability and smoothness of the rotation of the magnetic bearing outer ring 106, and can also disperse contact pressure, reduce wear, extend the service life of components, and further ensure the long-term efficient operation of the equipment.

[0028] Secondly, the stator assembly 104 includes an iron core 109. The inner ring of the iron core 109 is an annular structure, and multiple T-shaped structures are evenly arranged on the outer side of the annular structure of the inner ring of the iron core 109. Stator pressure rings 110 are respectively arranged on both sides of the iron core 109. A coil 111 is sleeved on the outer side of the iron core 109 and the stator pressure rings 110. The T-shaped structure of the iron core 109 can optimize the magnetic field distribution, enhance the magnetic field strength generated by the coil 111 after it is energized, and improve the magnetic repulsion between the coil 111 and the outer ring 106 of the magnetic bearing. The combined design of the annular and T-shaped structures of the iron core 109 ensures structural stability and magnetic field performance. The stator pressure rings 110 on both sides of the iron core 109 can compact and fix the multi-layered iron core 109 structure, preventing the iron core 109 from loosening or shifting during equipment operation, thus ensuring magnetic field stability. When the coil 111 is energized, it can generate a uniform and stable magnetic field, which drives the outer ring 106 of the magnetic bearing to rotate through the principle of opposite poles repulsion.

[0029] In addition, the outer frame 101 is connected to a connecting inlet pipe 112 and a connecting outlet pipe 113 on the same side. The connecting inlet pipe 112 and the connecting outlet pipe 113 serve as the fluid input port and output port, respectively. Their arrangement on the same side can optimize the fluid flow path, reduce flow resistance, and improve the conveying efficiency.

[0030] In the case of a magnetic bearing water pump according to this embodiment, the connecting inlet pipe 112 and the connecting outlet pipe 113 are connected to an external pipeline. The coil 111 is energized to generate a stable magnetic field. Since the outer ring 106 of the magnetic bearing is made of permanent magnet material, the magnetic field generated by the coil 111 and the outer ring 106 of the magnetic bearing form a repulsive force. This force drives the outer ring 106 of the magnetic bearing to rotate. When the outer ring 106 of the magnetic bearing rotates, the zirconia ceramic balls 107 between the annular groove 115 on its inner sidewall and the annular groove 115 on the outer sidewall of the zirconia ceramic bearing inner ring 105 roll synchronously. The non-magnetic and smooth surface of zirconia ceramic greatly reduces rotational friction resistance, allowing the outer ring 106 of the magnetic bearing to rotate stably and smoothly. At the same time, the outer ring 106 of the magnetic bearing drives the fan blade 108 connected to the outside to rotate at high speed. The fluid power generated by the fan blade 108 draws in external fluid through the connecting inlet pipe 112, guides it through the corresponding flow channel of the mounting cavity 114, and outputs it from the connecting outlet pipe 113, completing the fluid transport. This can streamline and optimize the internal structure of the water pump or fan, effectively compressing the volume of the water pump or fan itself, making the water pump or fan thinner and smaller, giving it a greater advantage in various environments.

[0031] The above-disclosed embodiments are merely preferred embodiments of the magnetic bearing water pump of this utility model, and should not be construed as limiting the scope of the utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of this utility model are still within the scope of the utility model.

Claims

1. A magnetic bearing water pump, comprising an outer frame (101), wherein an upper cover (102) and a lower cover (103) are respectively provided on both sides of the outer frame (101), the upper cover (102) and the lower cover (103) forming an installation cavity (114), characterized in that, A stator assembly (104) is provided at the center of the mounting cavity (114). A zirconia ceramic bearing inner ring (105) is fixedly provided on the outer side of the stator assembly (104). The two sides of the zirconia ceramic bearing inner ring (105) are fixedly connected to the upper cover (102) and the lower cover (103). A magnetic bearing outer ring (106) is provided on the outer side of the outer wall of the zirconia ceramic bearing inner ring (105). A zirconia ceramic ball (107) is provided between the zirconia ceramic bearing inner ring (105) and the magnetic bearing outer ring (106). A fan blade (108) is fixedly provided on the outer wall of the magnetic bearing outer ring (106).

2. A magnetic bearing water pump as described in claim 1, characterized in that, The outer side wall of the inner ring (105) of the zirconia ceramic bearing and the inner side wall of the outer ring (106) of the magnetic bearing are both provided with annular grooves (115) adapted to the zirconia ceramic balls (107).

3. A magnetic bearing water pump as described in claim 2, characterized in that, The stator assembly (104) includes an iron core (109), the inner ring of the iron core (109) is an annular structure, and multiple T-shaped structures are uniformly arranged on the outer side of the annular structure of the inner ring of the iron core (109).

4. A magnetic bearing water pump as described in claim 3, characterized in that, Stator pressure rings (110) are respectively provided on both sides of the iron core (109), and coils (111) are sleeved on the outside of the iron core (109) and the stator pressure rings (110).

5. A magnetic bearing water pump as described in claim 4, characterized in that, The outer frame (101) is connected to a connecting inlet pipe (112) and a connecting outlet pipe (113) on the same side.

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