Connecting structure of centrifugal container and centrifugal motor and centrifugal device
By using the encapsulated layer and fin structure in the connection structure of the low-temperature centrifugal vessel and the centrifugal motor, the heat conduction problem caused by the direct contact between the metal rotor and the air in the centrifugal cavity is solved, and more accurate temperature control and more efficient experiments are achieved. result.
Patent Information
- Application Number
- CN202421227940.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the connection structure between the existing low-temperature centrifugal container and the centrifugal motor, the metal rotor is in direct contact with the air in the centrifugal cavity, resulting in heat conduction, affecting the accuracy of temperature control, and thus affecting the accuracy of experimental results.
Adopt the encapsulated layer and fin structure, the encapsulated layer covers the outer periphery of the metal rotating connector to avoid direct contact with the air in the centrifugal cavity. The fins increase the contact area and friction with the air in the centrifugal cavity, and promote air flow and mixing. uniform.
It effectively reduces heat exchange inside and outside the centrifugal cavity, shortens the time required for refrigeration, avoids temperature fluctuations, and improves the experimental efficiency and accuracy of results.
Smart Images
Figure CN222509008U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a connection structure of a centrifugal container and a centrifugal motor and a centrifugal device. Background Art
[0002] The connection structure of the low-temperature centrifuge container and the centrifugal motor is a connection structure of a centrifuge container and a centrifugal motor with a refrigeration system based on the connection structure of a conventional centrifuge container and a centrifugal motor. The temperature inside the centrifuge container can be reduced to below the ambient temperature as required. The connection structure of the refrigerated centrifuge container and the centrifugal motor can control the temperature of the centrifuge cavity at -20°C, and can cool the centrifuged sample to the required temperature to ensure the accuracy of the experimental results. The accuracy of temperature control directly affects the accuracy of the experimental results.
[0003] The connection structure between the low-temperature centrifuge container and the centrifugal motor known at present, especially the connection structure between the high-speed low-temperature centrifuge container and the centrifugal motor, has a rotor mostly made of metal material for fixing the centrifugal sample, and the metal rotor is directly connected to the motor shaft of the centrifugal motor. When the motor shaft runs at a high speed, heat will be generated, and the heat will be transferred to the rotor in the centrifugal container body through the motor shaft and then to the entire centrifugal container body. At the same time, the low temperature in the centrifugal container body can also be transferred to the centrifugal motor shaft through the metal rotor and then to the centrifugal motor and the surrounding air outside the centrifugal container body, affecting the accuracy of the refrigeration temperature control in the centrifugal container body, and thus affecting the accuracy of the experimental results.
[0004] The outer surface of the metal rotor of the connection structure between the low-temperature centrifuge container and the centrifugal motor is in direct contact with the air in the centrifugal chamber, which will directly conduct external heat into the centrifugal chamber or conduct internal cold to outside the centrifugal chamber, affecting the accuracy of temperature control in the centrifugal chamber and thus affecting the accuracy of experimental results. Utility Model Content
[0005] The utility model aims to provide a connection structure between a centrifugal container and a centrifugal motor and a centrifugal device.
[0006] In order to achieve the above object, a technical solution adopted by the utility model is:
[0007] A connection structure between a centrifugal container and a centrifugal motor comprises a rotating connection member, a rubber coating layer and a fin. The rotating connection member comprises a body and a convex portion arranged on the body. Through holes are provided on the body and the convex portion, and the motor shaft of the centrifugal motor passes through the through holes. The outer peripheries of the body and the convex portion are both provided with the rubber coating layer. The fin is arranged on one side of the body where the convex portion is arranged and extends radially along the convex portion. The fin is connected to the rubber coating layer outside the convex portion, and the fin is connected to the rubber coating layer outside the body.
[0008] In some embodiments, the fins are perpendicular to the body.
[0009] In some embodiments, the fin has an upper side and a lower side that are relatively set, a first side and a second side that are relatively set, and a third side and a fourth side that are relatively set. The upper side is connected to the first side, the second side, the third side and the fourth side, and the lower side is connected to the first side, the second side, the third side and the fourth side. The connection between the upper side of the fin and the second side is arc-shaped, the first side of the fin is connected to the rubber coating outside the protrusion, and the lower side of the fin is connected to the rubber coating outside the body.
[0010] In some embodiments, the fin is provided in plurality, and the plurality of fins are arranged around the outer circumference of the protrusion.
[0011] In some embodiments, the plurality of fins are evenly arranged.
[0012] In some embodiments, the rubber coating layer and the fins are both made of silica gel.
[0013] In some embodiments, the rubber coating layer and the fins are integrally formed.
[0014] In some embodiments, a groove recessed toward the center of the annular outer peripheral wall of the body is formed.
[0015] In some embodiments, a side of the fin away from the protrusion corresponds to a recessed position of an inner wall of the groove of the body, and a length of the fin projected on the body is smaller than a maximum outer diameter of the body.
[0016] In some embodiments, the groove is provided in plurality, and the plurality of grooves are arranged around the outer circumference of the body.
[0017] Another technical solution adopted by the utility model is:
[0018] A centrifugal device comprises a centrifugal container, a centrifugal motor and a connecting structure between the centrifugal container and the centrifugal motor.
[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:
[0020] The connection structure of the centrifugal container and the centrifugal motor provided by the utility model avoids direct contact between the metal rotating connection piece and the air in the centrifugal cavity and avoids heat transfer by arranging a rubber coating layer. In this way, the heat generated by the rotation of the motor shaft will not be conducted to the air in the centrifugal cavity through the metal rotating connection piece, and the low-temperature air in the centrifugal cavity will not conduct the low temperature to the outside of the centrifugal cavity through the metal rotating connection piece. The heat exchange between the inside and outside of the centrifugal cavity can be reduced or even isolated, and the time required for refrigeration of the centrifugal cavity can be shortened. Meanwhile, large temperature fluctuations can be avoided during the refrigeration process, thereby improving the experimental efficiency and the accuracy of the results. The fins are arranged to increase the contact area and friction with the air in the centrifugal cavity, which is more conducive to the flow and mixing of air in the centrifugal cavity, thereby achieving the purpose of better temperature uniformity at different positions in the centrifugal cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Attached Figure 1 A structural diagram of a centrifugal container, a centrifugal motor, and a connecting structure provided by the utility model;
[0022] Attached Figure 2 A structural diagram of a centrifugal motor and a connection structure provided by the utility model;
[0023] Attached Figure 3 For attachment Figure 2 A magnified view of the connecting structure;
[0024] Attached Figure 4 A top view of the connection structure provided by the utility model;
[0025] Attached Figure 5 A structural diagram of a centrifugal container and a connecting structure provided by the utility model;
[0026] Attached Figure 6 A structural diagram of the centrifugal device provided by the utility model;
[0027] Attached Figure 7 A cross-sectional view of the centrifugal device provided by the utility model;
[0028] Attached Figure 8 A structural diagram of the centrifugal device provided by the utility model (without a rotating connecting piece);
[0029] Attached Fig. 9 This is a structural diagram of the centrifugal device provided by the utility model (without the rubber coating).
[0030] In the above attached figure:
[0031] 1-main body, 11-slot, 12-mounting hole; 2-convex part; 3-rubber coating; 4-fin, 41-upper side, 42-second side, 43-fourth side; 5-centrifugal motor, 51-motor shaft of centrifugal motor; 6-centrifugal container; 7-centrifugal chamber; 8-intermediate connecting piece, 81-mounting hole; 9-nut. DETAILED DESCRIPTION
[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0034] Embodiment 1
[0035] See also Figures 1 to 7 The connection structure of the centrifugal container and the centrifugal motor shown, the centrifugal container 6 and the motor shaft 51 of the centrifugal motor 5 are both located in the centrifugal cavity, the connection structure is located in the centrifugal cavity and outside the centrifugal container 6, the connection structure includes a rotating connection member, a rubber coating 3, and a fin 4, the rotating connection member includes a body 1, a convex portion 2 arranged on the body 1, through holes are provided on the body 1 and the convex portion 2, an intermediate connection member 8 is provided in the through hole, the intermediate connection member 8 is arranged outside the motor shaft 51 of the motor, the motor shaft 51 of the motor is connected to the intermediate connection member 8, the rotating connection member is connected to the intermediate connection member 8, and the intermediate connection member 8 is connected to the centrifugal container 6 such as a snap connection. The cross-sections of the body 1 and the convex portion 2 are both circular; the outer peripheries of the body 1 and the convex portion 2 are both provided with a rubber coating 3, the fin 4 is provided on one side of the body 1 where the convex portion 2 is provided and is extended along the radial direction of the convex portion 2, the fin 4 is connected to the rubber coating 3 outside the convex portion 2, and the fin 4 is connected to the rubber coating 3 outside the body 1.
[0036] In this example, when the shaft of the centrifugal motor 5 rotates, it drives the rotating connector, the intermediate connector 8 and the centrifugal container 6 above to rotate together, and then the substances with different densities contained in the liquid in the container are centrifugally layered. The liquid in the container is blood, cell solution or other biological solution, etc., which requires an ambient temperature of 4°C or even lower to ensure cell survival or solution effectiveness. When the temperature in the centrifugal chamber cannot be reduced to the required temperature or the temperature fluctuates greatly, it will affect the cell activity or the effectiveness of the reagent, thereby affecting the experimental results.
[0037] The rotating connector in this example is made of metal, and the rubber layer and fins are made of silicone. The rubber layer is provided to prevent the metal rotating connector from direct contact with the air in the centrifugal chamber to avoid heat transfer. In this way, the heat generated by the rotation of the motor shaft will not be conducted to the air in the centrifugal chamber through the metal rotating connector, and the low-temperature air in the centrifugal chamber will not conduct the low temperature to the outside of the centrifugal chamber through the metal rotating connector.
[0038] When the connection structure between the centrifugal container 6 and the centrifugal motor 5 rotates, the fin 4 structure increases the contact area and friction with the air in the centrifugal chamber, which is more conducive to the flow and mixing of air in the centrifugal chamber, thereby achieving better temperature uniformity at different positions in the centrifugal chamber.
[0039] The specific implementation of the connection between the rotating connector and the intermediate connector 8 in this example is as follows: corresponding mounting holes (12, 81) are provided on the rotating connector and the intermediate connector 8, and the rotating connector and the intermediate connector 8 are connected by installing fasteners in the mounting holes. A groove is provided in the intermediate connector 8, a nut 9 is provided in the groove, an external thread is provided on the outer periphery of one end of the motor shaft 51 of the motor, and one end of the motor shaft 51 is connected to the nut 9, so that the motor shaft 51 is connected to the intermediate connector 8. The intermediate connector 8 is a structure well known to technicians and will not be described in detail.
[0040] In this example, see Figure 2-3 , the fin 4 is perpendicular to the body 1. The fin 4 has an upper side surface 41 and a lower side surface that are arranged oppositely, a first side surface and a second side surface that are arranged oppositely, and a third side surface and a fourth side surface that are arranged oppositely. The upper side surface is connected to the first side surface, the second side surface, the third side surface and the fourth side surface, and the lower side surface is connected to the first side surface, the second side surface, the third side surface and the fourth side surface. The first side surface of the fin 4 is connected to the rubber coating 3 outside the protrusion 2, that is, coplanar (or integrally formed), and the lower side surface of the fin 4 is connected to the rubber coating 3 outside the body 1, that is, coplanar (or integrally formed). The connection between the upper side surface of the fin 4 and the second side surface is arc-shaped. When the motor shaft 51 rotates, the fin 4 rotates more smoothly, and it is safer for the operator to install it without scratching the operator. The upper side surface of the fin 4 is flush with the upper side surface of the protrusion 2.
[0041] In one embodiment, see Figure 3 The first side surface of the fin 4 refers to the front side surface, the second side surface 42 refers to the rear side surface, the third side surface refers to the left side surface, and the fourth side surface 43 refers to the right side surface.
[0042] In some embodiments, the fin 4 is provided in plurality, and the plurality of fins 4 are arranged around the outer periphery of the protrusion 2. More preferably, the plurality of fins 4 are evenly arranged, see Figure 2-3 , 8 fins 4 are arranged, and the 8 fins are divided into 8 equal parts, that is, the angles between any two adjacent fins 4 are equal.
[0043] In this example, the rubber coating layer 3 and the fins 4 are both made of silicone, and the rubber coating layer 3 and the fins 4 are integrally formed; the thickness of the rubber coating layer 3 and the fins 4 can be set as required.
[0044] In some embodiments, a groove 11 is provided on the annular outer peripheral wall of the body 1, which is recessed toward the center thereof. Compared with the traditional circular structure, it is more conducive to the mixing of air flow in the centrifugal cavity during rotation, thereby achieving a better effect of temperature uniformity at different positions. Preferably, the side of the fin 4 away from the protrusion 2 is recessed at the inner wall of the groove 11 of the body 1 (the lowest position, such as Figure 3 b), the length of the projection of the fin 4 on the body 1 is less than the maximum outer diameter of the body 1, so that the operator can connect the rotating connector to the centrifugal container 6. Alternatively, the side of the fin 4 away from the protrusion 2 corresponds to the annular outer wall of the body 1 without the groove 11, and the length of the projection of the fin 4 on the body 1 is greater than or equal to the maximum outer diameter of the body 1.
[0045] In some embodiments, a plurality of slots 11 are provided, the plurality of slots 11 are provided around the outer circumference of the body 1, the plurality of slots 11 are evenly provided, and the plurality of slots 11 are equally provided, that is, the angles between any two adjacent slots 11 are equal, such as Figure 2-3 There are 8 slots 11 in the fin 4, and the slots 11 correspond to the fins 4 one by one, that is, the number of the slots 11 is equal to that of the fins 4.
[0046] The advantages of the connection structure between the centrifugal container and the centrifugal motor in this example are:
[0047] By providing a rubber coating layer, direct contact between the metal rotating connector and the air in the centrifugal chamber is avoided to avoid heat transfer. In this way, the heat generated by the rotation of the motor shaft will not be conducted to the air in the centrifugal chamber through the metal rotating connector, and the low-temperature air in the centrifugal chamber will not conduct the low temperature to the outside of the centrifugal chamber through the metal rotating connector. The heat exchange between the inside and outside of the centrifugal chamber can be reduced or even isolated, and the time required for refrigeration of the centrifugal chamber can be shortened. At the same time, large temperature fluctuations can be avoided during the refrigeration process, thereby improving the experimental efficiency and the accuracy of the results. Fins 4 are provided to increase the contact area and friction with the air in the centrifugal chamber, which is more conducive to the flow and mixing of air in the centrifugal chamber, thereby achieving a better temperature uniformity at different positions in the centrifugal chamber.
[0048] Embodiment 2
[0049] This example provides a centrifugal device, which includes a centrifugal container 6, a centrifugal motor 5, a centrifugal chamber 7, and a connecting structure between the centrifugal container 6 and the centrifugal motor 5. The centrifugal container 6 and the motor shaft 51 of the centrifugal motor 5 are both located in the cavity of the centrifugal chamber 7, and the connecting structure is located in the cavity of the centrifugal chamber 7 and outside the centrifugal container 6.
[0050] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A connection structure between a centrifugal container and a centrifugal motor, characterized in that: It includes a rotating connection member, a rubber coating layer, and a fin. The rotating connection member includes a body and a convex portion arranged on the body. The body and the convex portion are provided with through holes, and the motor shaft of the centrifugal motor passes through the through holes. The outer peripheries of the body and the convex portion are both provided with the rubber coating layer. The fin is arranged on one side of the body where the convex portion is arranged and extends radially along the convex portion. The fin is connected to the rubber coating layer outside the convex portion, and the fin is connected to the rubber coating layer outside the body.
2. The connection structure of the centrifugal container and the centrifugal motor according to claim 1, characterized in that: The fins are perpendicular to the body.
3. The connection structure of the centrifugal container and the centrifugal motor according to claim 1 or 2, characterized in that: The fin has an upper side and a lower side that are arranged oppositely, a first side and a second side that are arranged oppositely, and a third side and a fourth side that are arranged oppositely. The upper side is connected to the first side, the second side, the third side and the fourth side, and the lower side is connected to the first side, the second side, the third side and the fourth side. The connection between the upper side of the fin and the second side is arc-shaped, the first side of the fin is connected to the rubber coating outside the convex portion, and the lower side of the fin is connected to the rubber coating outside the body.
4. The connection structure of the centrifugal container and the centrifugal motor according to claim 1, characterized in that: There are a plurality of fins, and the plurality of fins are arranged around the outer periphery of the protrusion.
5. The connection structure of the centrifugal container and the centrifugal motor according to claim 4, characterized in that: The plurality of fins are evenly arranged.
6. The connection structure of the centrifugal container and the centrifugal motor according to claim 1, characterized in that: The rubber coating layer and the fins are both made of silica gel.
7. The connection structure of the centrifugal container and the centrifugal motor according to claim 1, characterized in that: The rubber coating layer and the fins are integrally formed.
8. The connection structure of a centrifugal container and a centrifugal motor according to claim 1, characterized in that: The annular outer peripheral wall of the main body is provided with a groove recessed toward the center thereof.
9. The connection structure of the centrifugal container and the centrifugal motor according to claim 8, characterized in that: The side of the fin away from the convex portion corresponds to the recessed position of the inner wall of the slot of the body, and the length of the projection of the fin on the body is smaller than the maximum outer diameter of the body.
10. A centrifugal device, characterized in that: The invention comprises a centrifugal container, a centrifugal motor and a connecting structure between the centrifugal container and the centrifugal motor according to any one of claims 1 to 9.