Cooling structure, magnetic suspension stirrer and stirring container

Abstract

The utility model discloses a cooling structure, a magnetic suspension stirrer and a stirring container, and relates to the technical field of magnetic suspension motors. The cooling structure is used for the magnetic suspension stirrer and comprises a stand column, a stator assembly and a cooling pipeline, the stand column is provided with a first cavity channel and a mounting cavity, the first cavity channel is distributed in the axial direction of the stand column, and the mounting cavity is communicated with the first cavity channel; the stator assembly is arranged in the mounting cavity; the cooling pipeline comprises an input section, a heat exchange section and an output section, the input section is distributed along the first cavity in an extending manner, the heat exchange section is distributed in the mounting cavity in an extending manner, the input section is communicated with the heat exchange section and used for conveying a cooling medium to the heat exchange section to realize heat exchange, and the output section is distributed along the first cavity in an extending manner, communicated with the heat exchange section and used for outputting the cooling medium subjected to heat exchange. According to the scheme, at least the problems that a magnetic suspension stirrer is short in service life, the motor efficiency is low, and solution components are prone to being damaged can be solved.

Description

Technical Field

[0001] This application relates to the field of magnetic levitation motor technology, and in particular to a cooling structure, a magnetic levitation stirrer, and a stirring container. Background Technology

[0002] In fields such as pharmaceuticals and biochemistry, stirring devices are frequently required, for example, in scenarios involving mixing drug solutions and cell suspension culture. However, using traditional stirring devices presents several drawbacks. For instance, the friction between mechanical bearings and materials can generate abrasive particles that can enter the stirred mixture, affecting product purity; friction generates heat, impacting the low-temperature preparation environment; and maintenance introduces contaminants such as machine oil, dust, debris, and grease, which can pollute the stirred mixture. Therefore, in fields like pharmaceuticals and biochemistry, where the reaction environment is critical, magnetic levitation stirrers are typically used to address the aforementioned problems associated with traditional stirrers.

[0003] In related technologies, magnetic levitation stirrers include a column, a stator, and a rotor impeller. The stator is mounted on the column, and the rotor impeller is fitted onto the column corresponding to the stator. The stator generates a magnetic field to levitate and rotate the rotor impeller. Because the rotor impeller does not contact the stator, high-speed rotation is achieved, thus improving the mixing uniformity of the stirred materials. However, in practice, it has been found that these magnetic levitation stirrers have a short service life and also suffer from low motor efficiency and damage to solution components. Utility Model Content

[0004] This application provides a cooling structure, a magnetic levitation stirrer, and a stirring container, which can at least solve the problems of short service life of magnetic levitation stirrers, low motor efficiency, and easy destruction of solution components.

[0005] In a first aspect, embodiments of this application provide a cooling structure for a magnetically levitated stirrer.

[0006] The cooling structure includes a column, a stator assembly, and cooling pipes, wherein: the column has a first cavity and a mounting chamber, the first cavity is distributed along the axial direction of the column, and the mounting chamber is connected to the first cavity; the stator assembly is disposed in the mounting chamber; the cooling pipes include an input section, a heat exchange section, and an output section, the input section extends along the first cavity, the heat exchange section extends in the mounting chamber, the input section is connected to the heat exchange section, and is used to deliver cooling medium to the heat exchange section to achieve heat exchange; the output section extends along the first cavity and is connected to the heat exchange section, and is used to output the cooled medium after heat exchange.

[0007] In some embodiments, heat exchange sections are provided on both sides of the stator assembly along the axial direction of the column within the same mounting chamber.

[0008] In some embodiments, the cooling conduit includes a heat exchange section located radially outside the stator assembly.

[0009] In some embodiments, the cooling conduit includes a heat exchange section located radially inside the stator assembly.

[0010] In some embodiments, the stator assembly includes a plurality of first magnetic drive windings for applying torque and levitation force to the outer rotor assembly of the magnetic levitation stirrer. The plurality of first magnetic drive windings are uniformly arranged circumferentially along the column, and the cooling pipes include heat exchange sections extending between adjacent first magnetic drive windings.

[0011] In some embodiments, the stator assembly includes a plurality of second magnetic drive windings for applying axial driving force to the outer rotor assembly of the magnetically levitated stirrer. The plurality of second magnetic drive windings are uniformly arranged circumferentially along the column, and the cooling pipes include heat exchange sections extending between adjacent second magnetic drive windings.

[0012] In some embodiments, the heat exchange section includes a first return pipe for guiding the cooling medium back to the output section, the first return pipe passing radially through a first gap between adjacent first magnetic drive windings.

[0013] In some embodiments, the heat exchange section includes a second return pipe for guiding the cooling medium back to the output section, the second return pipe passing radially through a second gap between adjacent second magnetic drive windings.

[0014] In some embodiments, there are at least two first return pipes, and each first gap is provided with a first return pipe.

[0015] In some embodiments, there are at least two second return pipes, and each second gap is provided with a second return pipe.

[0016] In some embodiments, a first colloid is filled into the mounting chamber, and the stator assembly and heat exchange section are bonded and fixed in the mounting chamber.

[0017] In some embodiments, a second colloid is filled into the first cavity, and the input section and the output section are glued and fixed in the first cavity.

[0018] In some embodiments, the mounting chamber is coaxially arranged with the first cavity, and both the input section and the output section are located at the radial center of the column.

[0019] In some embodiments, the heat exchange section includes a coiled tube structure.

[0020] In some embodiments, the cooling structure further includes a wiring harness disposed within the first cavity.

[0021] In some embodiments, there are multiple stator assemblies, and each stator assembly is arranged along the axial direction of the column; the cooling structure also includes a connecting pipe for connecting and supporting the iron core of each stator assembly, the connecting pipe is disposed in a first cavity, the input section and the output section are both disposed in the connecting pipe, the connecting pipe has an opening, and the heat exchange section passes through the opening into the connecting pipe.

[0022] Secondly, embodiments of this application provide a magnetically levitated stirrer, which includes the cooling structure described in the first aspect.

[0023] Thirdly, embodiments of this application provide a stirring container, which includes a magnetically levitated stirrer as described in the first aspect.

[0024] The technical solution adopted in the embodiments of this application can achieve the following beneficial effects:

[0025] The cooling structure disclosed in this application embodiment utilizes a heat exchange section extending from the mounting cavity of the stator assembly on the column. This heat exchange section effectively removes heat from the high-heat areas of the magnetic levitation stirrer, achieving cooling and preventing damage to internal motor components, thus extending the lifespan of the magnetic levitation stirrer. Furthermore, compared to related technologies, the effective cooling structure of this application embodiment avoids the problem of low motor efficiency caused by motor overheating and prevents damage to the components in the stirred solution, thereby optimizing the quality of the stirred material. Attached Figure Description

[0026] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0027] In the attached diagram:

[0028] Figure 1 This is a schematic diagram of the structure of the stirring container disclosed in some embodiments of this application;

[0029] Figure 2 This is a structural schematic diagram of the stirring container disclosed in some embodiments of this application when the outer shell of the container is partially concealed;

[0030] Figure 3 This is a cross-sectional view of a magnetically levitated stirrer disclosed in some embodiments of this application;

[0031] Figure 4 for Figure 3 A magnified view of a portion of point A in the image;

[0032] Figure 5 This is a schematic diagram illustrating the fit between the stator assembly and cooling pipes disclosed in some embodiments of this application;

[0033] Figure 6 This is a schematic diagram of the structure of the heat exchange section disclosed in some embodiments of this application;

[0034] Figure 7 This is a schematic diagram showing the assembly of the first magnetic drive winding, connecting pipe, and heat exchange section disclosed in some embodiments of this application;

[0035] Figure 8 This is a schematic diagram of the cooling pipes and connecting pipes disclosed in some embodiments of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100 - Column, 110 - First cavity, 120 - Installation chamber

[0038] 200 - Stator assembly, 210 - First magnetic drive winding, 210a - First gap, 211 - First iron core, 220 - Second magnetic drive winding, 220a - Second gap

[0039] 300 - Cooling piping, 310 - Inlet section, 320 - Heat exchange section, 321 - Second return pipe, 330 - Outlet section

[0040] 400 - External rotor assembly, 500 - Wiring harness, 600 - Connecting tube, 610 - Access port

[0041] 700 - Container shell, 710 - Cover, 720 - Stirring chamber. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0043] In various embodiments of this application, "multiple" includes the case of "two".

[0044] To facilitate understanding of the cooling structure, magnetic levitation stirrer, and stirring container provided in the embodiments of this application, the relevant technologies will first be introduced in conjunction with the application scenario.

[0045] Regarding the short lifespan of magnetic levitation stirrers, the inventors discovered through research that the main reason is poor heat dissipation. Specifically, while magnetic levitation stirrers achieve excellent stirring results by utilizing the high speed of their rotors, they also generate a large amount of heat, primarily distributed in the motor windings and main shaft (including the column). This accumulated heat can easily damage internal components of the motor, thus preventing the magnetic levitation stirrer from functioning properly.

[0046] In view of this, some embodiments of this application provide a cooling structure for a magnetically levitated stirrer.

[0047] Please see Figures 1-8 The cooling structure disclosed in this application includes a column 100, a stator assembly 200, and a cooling pipe 300.

[0048] The column 100 is the basic component of the cooling structure, serving as the mounting base for the stator assembly 200. Specifically, the column 100 has a mounting chamber 120, in which the stator assembly 200 is housed. Thus, the stator assembly 200 is protected by the column 100, and it also isolates the stator assembly 200 from external materials being stirred, preventing damage caused by corrosion or other reasons.

[0049] The column 100 also has a first cavity 110 distributed along its axial direction. The first cavity 110 communicates with the mounting chamber 120 and is used to extend and arrange the cooling pipe 300 in the first cavity 110 and the mounting chamber 120. The cooling medium is transported through the cooling pipe 300 to achieve heat exchange and cooling treatment of the column 100 and the stator assembly 200.

[0050] In the embodiments of this application, the cooling pipe 300 includes an input section 310, a heat exchange section 320, and an output section 330. The input section 310 extends along the first cavity 110, and the heat exchange section 320 extends within the mounting chamber 120. The input section 310 communicates with the heat exchange section 320 to deliver a cooling medium to the heat exchange section 320 to achieve heat exchange. The output section 330 extends along the first cavity 110 and communicates with the heat exchange section 320 to output the cooled medium after heat exchange.

[0051] It should be understood that, due to the heat generated by the motor windings in the stator assembly 200 during operation, and the high-speed characteristics of the magnetic levitation stirrer, the portion of the column 100 corresponding to the stator assembly 200 is within the relative rotation area of ​​the magnetic levitation stirrer. This combination results in the portion of the column 100 corresponding to the stator assembly 200 being a high-heat area. In response, the cooling structure of this embodiment specifically extends a heat exchange section 320 within the mounting chamber 120. The cooling medium delivered by the input section 310 flows through the heat exchange section 320 within the mounting chamber 120, thus specifically exchanging heat in the aforementioned high-heat area. The relative rotation area of ​​the stator assembly 200 and the column 100 is effectively cooled. The cooled medium after heat exchange is then discharged by the output section 330, thereby completing a heat exchange and cooling cycle.

[0052] Compared to related technologies, the cooling structure of this application embodiment not only achieves cooling along the entire axial direction of the column 100 of the magnetic levitation stirrer through the input section 310 and the output section 330, but also arranges a heat exchange section 320 in the mounting chamber 120 where the stator assembly 200 is installed. This section performs heat exchange treatment on the high-heat area of ​​the magnetic levitation stirrer, thereby removing heat in a timely manner, achieving cooling, preventing damage to the internal components of the motor, and effectively extending the service life of the magnetic levitation stirrer.

[0053] Meanwhile, because the cooling structure of this embodiment can effectively reduce the temperature, the problem of low motor efficiency caused by motor overheating can be avoided, and the damage to the components in the stirred solution caused by motor overheating can also be prevented, thereby optimizing the quality of the stirred material.

[0054] To simplify the structural layout and take into account installation habits, in some embodiments, such as Figure 3 As shown, one end of the column 100 is through-hole to introduce the input section 310 and lead out the output section 330. Of course, the embodiments of this application do not limit the matching relationship between the column 100 and the cooling pipe 300. For example, the column 100 may have an opening from the side to introduce and lead out the cooling pipe 300.

[0055] Regarding the cooling medium, it can be a coolant, such as cooling oil or cooling water, or it can be a cooling gas stream, such as nitrogen or helium, especially an inert gas.

[0056] In some embodiments, such as Figure 3 and Figure 4 As shown, within the same mounting chamber 120, heat exchange sections 320 are provided on both sides of the stator assembly 200 along the axial direction of the column 100. Thus, heat exchange and cooling can be achieved through the heat exchange sections 320 on both sides of the stator assembly 200 along the axial direction, optimizing the cooling effect of the cooling structure and further reducing the risk of damage to internal components of the motor.

[0057] In some embodiments, the cooling conduit 300 includes a heat exchange section 320 located radially outside the stator assembly 200. It should be understood that the radially outer side of the stator assembly 200 corresponds not only to the sidewall of the column 100 but also to the outer rotor assembly 400 of the magnetically levitated stirrer; the higher regions correspond to areas of relative rotation and generate more heat. This example, through the aforementioned structural layout, allows for targeted heat exchange and cooling of this region via the heat exchange section 320 radially outside the stator assembly 200, thereby optimizing the cooling effect of the cooling structure and further reducing the risk of damage to internal motor components.

[0058] In some embodiments, the cooling conduit 300 includes a heat exchange section 320 disposed radially inside the stator assembly 200. This structural layout broadens the heat exchange and cooling range of the cooling conduit 300, thereby optimizing the cooling effect of the cooling structure and further reducing the risk of damage to internal components of the motor.

[0059] In some embodiments, the stator assembly 200 includes a plurality of first magnetic drive windings 210, which are used to apply torque and levitation force to the outer rotor assembly 400 of the magnetic levitation stirrer. The plurality of first magnetic drive windings 210 are evenly arranged along the circumference of the column 100, and the cooling pipe 300 includes heat exchange sections 320 extending between adjacent first magnetic drive windings 210.

[0060] It should be understood that the heat of the stator assembly 200 is mainly generated by its motor windings. The first magnetic drive winding 210, as the motor winding that applies torque and levitation force to the outer rotor assembly 400, is essentially in operation, thus generating considerable heat. Additionally, the area between adjacent first magnetic drive windings 210 (see reference...) Figure 5 and Figure 7 This area is where the heat dissipation of the two components converges, resulting in a greater accumulation of heat. In this example, by arranging a heat exchange section 320 in the region between adjacent first magnetic drive windings 210, the heat in this region can be exchanged and cooled, preventing damage to the device due to heat accumulation.

[0061] In some embodiments, such as Figures 3-6 As shown, the stator assembly 200 includes a plurality of second magnetic drive windings 220, which are used to apply axial driving force to the outer rotor assembly 400 of the magnetic levitation stirrer. The plurality of second magnetic drive windings 220 are evenly arranged along the circumference of the column 100. The cooling pipe 300 includes heat exchange sections 320 extending between adjacent second magnetic drive windings 220.

[0062] It should be noted that the second magnetic drive winding 220 can maintain the axial position of the outer rotor assembly 400 in a rotating or suspended state by applying an axial driving force to the outer rotor assembly 400, in order to cope with the situation where the magnetic pull is insufficient to maintain the balance state of the suspension control strategy. In addition, the axial driving force can also be used to drive the outer rotor assembly 400 to move axially in the column 100, and switch the position corresponding to different stator assemblies 200, thereby changing the stirring strategy.

[0063] This example arranges a heat exchange section 320 in the area between adjacent second magnetic drive windings 220 to cool down the heat in that area and prevent damage to the device due to heat accumulation.

[0064] In the embodiments of this application, the return path from the heat exchange section 320 to the output end is not limited. For example, the return portion of the heat exchange section 320 may be stacked with its main body, but this would increase the axial space occupied by the heat exchange section 320 inside the column 100, which is not conducive to the structural layout.

[0065] In some embodiments, the heat exchange section 320 includes a first return pipe for guiding the cooling medium back to the output section 330, the first return pipe passing radially through a first gap 210a between adjacent first magnetic drive windings 210 (see reference). Figure 5 and Figure 7 ).

[0066] It should be understood that the mounting chamber 120 is used to mount the stator assembly 200. The first magnetic drive winding 210 occupies a certain axial space inside the column 100. In this example, by arranging the first return pipe in the first gap 210a adjacent to the first magnetic drive winding 210, the axial space occupied by the first magnetic drive winding 210 inside the column 100 is utilized. The first return pipe does not need to occupy additional axial space in other areas inside the column 100, which can improve the structural compactness of each component and optimize the structural layout. At the same time, the first return pipe passes through the first gap 210a, allowing the heat exchange section 320 to pass through a larger range in the first gap 210a, thereby further optimizing the cooling effect.

[0067] Furthermore, based on the above structural layout, with the same installation space size in the installation chamber 120, the extra space freed up by the first return pipe can be used to increase the size of the first magnetic drive winding 210, which is equivalent to increasing power and improving magnetic control efficiency.

[0068] In a further embodiment, there are at least two first return pipes, with each first gap 210a having a first return pipe inserted through it. This example, by arranging a first return pipe for each first gap 210a, further optimizes the cooling effect of the heat exchange section 320 on the stator assembly 200. Furthermore, this arrangement ensures a more uniform distribution of cooling effect within the circumferential region of the heat exchange section 320 corresponding to the first magnetic drive winding 210, preventing large temperature differences in the stator assembly 200 that could damage the device.

[0069] In some embodiments, such as Figures 3-6 As shown, the heat exchange section 320 includes a second return pipe 321 for guiding the cooling medium back to the output section 330. The second return pipe 321 passes radially through the second gap 220a between adjacent second magnetic drive windings 220 along the column 100.

[0070] It should be understood that the second magnetic drive winding 220 occupies a certain axial space inside the column 100. In this example, by arranging the second return pipe 321 in the second gap 220a adjacent to the second magnetic drive winding 220, the axial space occupied by the second magnetic drive winding 220 inside the column 100 is utilized. The second return pipe 321 does not need to occupy additional axial space in other areas inside the column 100, thus improving the structural compactness of each component and optimizing the structural layout. Simultaneously, the second return pipe 321 passes through the second gap 220a, allowing the heat exchange section 320 to pass through a larger area in the second gap 220a, thereby further optimizing the cooling effect.

[0071] Furthermore, based on the above structural layout, with the same installation space size in the installation chamber 120, the extra space freed up by the second return pipe 321 can be used to increase the size of the second magnetic drive winding 220, thereby increasing power and improving magnetic control efficiency.

[0072] In a further embodiment, such as Figure 5 and Figure 6 As shown, there are at least two second return pipes 321, with each second gap 220a having a second return pipe 321 inserted through it. In this example, the arrangement of a second return pipe 321 for each second gap 220a further optimizes the cooling effect of the heat exchange section 320 on the stator assembly 200. Furthermore, this arrangement ensures a more uniform distribution of cooling effect within the circumferential region of the heat exchange section 320 corresponding to the second magnetic drive winding 220, preventing damage to the stator assembly 200 due to large temperature differences.

[0073] In some embodiments, a first colloid is filled into the mounting chamber 120, and the stator assembly 200 and the heat exchange section 320 are bonded and fixed within the mounting chamber 120. It should be understood that in this example, the first colloid bonds and fixes the stator assembly 200 and the heat exchange section 320 within the mounting chamber 120. Firstly, this ensures the reliability of the installation of the stator assembly 200 and the heat exchange section 320 within the mounting chamber 120 of the column 100. Secondly, the first colloid provides a certain degree of thermal conductivity, thereby optimizing the heat exchange process of the heat exchange section 320 within the mounting chamber 120, further optimizing the cooling effect of the cooling structure.

[0074] In some embodiments, a second colloid is filled into the first cavity 110, and the input section 310 and the output section 330 are bonded and fixed within the first cavity 110. It should be understood that in this example, the second colloid bonds and fixes the input and output ends within the first cavity 110, thus fixing the relative positions of the input and output ends and preventing pipe rupture caused by misalignment of the cooling pipe 300. Simultaneously, the second colloid optimizes the cooling effect of the cooling structure within the first cavity 110 through thermal conductivity.

[0075] Regarding the first colloid and the second colloid, fillers with high thermal conductivity can be used, such as modified graphite, boron nitride, etc. Of course, the embodiments of this application do not limit them.

[0076] In some embodiments, such as Figures 3-5 As shown, the mounting chamber 120 is coaxially arranged with the first channel 110, and both the input section 310 and the output section 330 are located at the radial center of the column 100. It should be understood that this layout allows cooling medium to be transported from the radial center of the column 100 through the cooling pipes 300. This allows the cooling medium to be transported radially outward from the center of the column 100 and then flow back to the center of the column 100, thus helping to avoid blank areas in the distribution of cooling medium. Furthermore, since the mounting chamber 120 and the first channel 110 are coaxially arranged, this facilitates the formation of a centrally symmetrical structure for the column 100, making it easier to mount the outer rotor assembly 400 around the column 100.

[0077] In some embodiments, such as Figure 5 and Figure 6 As shown, the heat exchange section 320 includes a disc tube structure. By utilizing the multi-layered distribution of the disc tube structure in the radial direction, the heat exchange area is increased, thereby optimizing the cooling effect of the cooling structure.

[0078] In some embodiments, such as Figures 3-5As shown, the cooling structure also includes a wiring harness 500, which is disposed within the first cavity 110. It should be understood that with this layout, the input section 310 and the output end share the first cavity 110 of the column 100 via the wiring harness 500. This eliminates the need for an additional mounting cavity for the wiring harness 500, simplifying the structure of the column 100. Simultaneously, the cooling medium within the input section 310 and the output section 330 can carry away the heat from inside the first cavity 110, thus achieving a cooling effect on the wiring harness 500.

[0079] Of course, the embodiments of this application do not limit the specific layout of the wire harness 500 in the post 100. For example, a second cavity can be constructed in the post 100, which is dedicated to the installation of the wire harness 500.

[0080] In some embodiments, such as Figures 3-5 , Figure 7 and Figure 8 As shown, there are multiple stator assemblies 200, each arranged along the axial direction of the column 100. The cooling structure also includes a connecting pipe 600 for connecting and supporting the iron core of each stator assembly 200. The connecting pipe 600 is located within the first cavity 110. The input section 310 and the output section 330 are both located within the connecting pipe 600. The connecting pipe 600 has an opening 610, through which the heat exchange section 320 passes. Figure 4 and Figure 7 An embodiment is shown in which the connecting tube 600 connects to the first iron core 211 supporting the first magnetic drive winding 210. Of course, the connecting tube 600 can also connect to the second iron core supporting the second magnetic drive winding 220.

[0081] It should be understood that in a magnetic levitation stirrer, the installation orientation of the motor winding core affects the magnetic field distribution. In this example, the stator assembly 200 cores are connected by a connecting tube 600, which serves both as support and anchors the relative positions of the cores, thereby optimizing the installation of the motor windings. Furthermore, placing the input section 310 and the output end within the connecting tube 600 improves compactness, and the heat exchange section 320 passes through the through-hole 610, ensuring the cooling pipe 300 can be smoothly extended and arranged within the column 100.

[0082] Please see Figures 1-8 Some embodiments of this application provide a magnetic levitation stirrer, including the cooling structure mentioned in any of the foregoing solutions. Thus, the magnetic levitation stirrer of this application embodiment possesses the beneficial effects of the aforementioned cooling structure, which will not be elaborated upon here.

[0083] The magnetic levitation stirrer includes an outer rotor assembly 400, which is fitted around the outer periphery of the column 100 and corresponds to the stator assembly 200, thereby enabling controlled levitation and rotation functions.

[0084] Please see Figures 1-8 Some embodiments of this application provide a stirring container including the magnetic levitation stirrer described above, thereby possessing the beneficial effects of the magnetic levitation stirrer described above, which will not be elaborated further.

[0085] Typically, the mixing vessel includes a container shell 700, and a magnetically levitated stirrer is disposed within the container shell 700 to perform stirring operations within a stirring chamber 720 inside the container shell 700. For example, as... Figure 1 As shown, the container shell 700 includes a cover 710, which is detachably connected to the main body of the container shell 700, thus facilitating the installation and removal of the magnetic levitation stirrer inside the container shell 700.

[0086] The stirring container involved in the embodiments of this application can be a drug solution stirring tank, a bioreactor, a cell culture container, etc. The embodiments of this application do not specifically limit the type of stirring container.

[0087] The above embodiments of this application focus on describing the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. For the sake of brevity, they will not be described in detail here.

[0088] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A cooling structure for a magnetically levitated stirrer, characterized in that, The cooling structure includes columns, stator assemblies, and cooling pipes, wherein: The column has a first cavity and an installation chamber, the first cavity is distributed along the axial direction of the column, and the installation chamber communicates with the first cavity; The stator assembly is disposed within the mounting cavity; The cooling pipeline includes an input section, a heat exchange section, and an output section. The input section extends along the first cavity, and the heat exchange section extends within the mounting cavity. The input section is connected to the heat exchange section to deliver a cooling medium to the heat exchange section for heat exchange. The output section extends along the first cavity and is connected to the heat exchange section to output the cooled medium after heat exchange.

2. The cooling structure according to claim 1, characterized in that, Within the same mounting chamber, along the axial direction of the column, the heat exchange section is provided on both sides of the stator assembly; And / or, the cooling conduit includes the heat exchange section located radially outside the stator assembly; And / or, the cooling conduit includes the heat exchange section located radially inside the stator assembly; And / or, the stator assembly includes a plurality of first magnetic drive windings for applying torque and levitation force to the outer rotor assembly of the magnetic levitation stirrer, the plurality of first magnetic drive windings being uniformly arranged circumferentially along the column, and the cooling conduit including the heat exchange section extending between adjacent first magnetic drive windings. And / or, the stator assembly includes a plurality of second magnetic drive windings for applying axial driving force to the outer rotor assembly of the magnetically levitated stirrer, the plurality of second magnetic drive windings being uniformly arranged circumferentially along the column, and the cooling conduit including heat exchange sections extending between adjacent second magnetic drive windings.

3. The cooling structure according to claim 2, characterized in that, The heat exchange section includes a first return pipe for guiding the cooling medium back to the output section, the first return pipe passing radially through a first gap between adjacent first magnetic drive windings along the column; and / or, the heat exchange section includes a second return pipe for guiding the cooling medium back to the output section, the second return pipe passing radially through a second gap between adjacent second magnetic drive windings along the column.

4. The cooling structure according to claim 3, characterized in that, There are at least two first return pipes, and each of the first gaps is provided with a first return pipe; and / or, there are at least two second return pipes, and each of the second gaps is provided with a second return pipe.

5. The cooling structure according to any one of claims 1 to 4, characterized in that, The mounting chamber is filled with a first colloid, and the stator assembly and the heat exchange section are bonded and fixed in the mounting chamber; and / or, the first cavity is filled with a second colloid, and the input section and the output section are bonded and fixed in the first cavity.

6. The cooling structure according to any one of claims 1 to 4, characterized in that, The installation chamber is coaxially arranged with the first cavity, and the input section and the output section are both located in the radial center of the column.

7. The cooling structure according to any one of claims 1 to 4, characterized in that, The heat exchange section includes a coil tube structure; and / or, the cooling structure further includes a wire harness disposed within the first cavity.

8. The cooling structure according to any one of claims 1 to 4, characterized in that, The stator assembly comprises multiple stator assemblies, each stator assembly being arranged along the axial direction of the column; the cooling structure further includes a connecting pipe for connecting and supporting the iron core of each stator assembly, the connecting pipe being disposed within the first cavity, the input section and the output section being disposed within the connecting pipe, the connecting pipe having an opening, and the heat exchange section passing through the opening into the connecting pipe.

9. A magnetically levitated stirrer, characterized in that, The cooling structure includes any one of claims 1 to 8.

10. A stirring container, characterized in that, Includes the magnetic levitation stirrer as described in claim 9.

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