Rewarming device

Abstract

The present disclosure relates to a rewarming device, comprising a disc holder with a plurality of placement areas in the radial direction, a heating groove with a plurality of heating areas in the radial direction, the plurality of placement areas are arranged one by one with the plurality of heating areas, and different placement areas can be heated in different heating areas. At least one of the lifting assembly and the disc holder is connected with the rotating assembly to drive the disc holder to rotate. The reciprocating rotation of the disc holder enables the pipe body on the disc holder not only to exchange heat quickly and uniformly with the fluid medium of the heating area, but also to heat the cryopreserved samples in the pipe body more uniformly under oscillation. Different placement areas are used to place pipe bodies, i.e. the same batch of pipe bodies on the disc holder can all reach the target thawing effect by being placed in different placement areas for the same period of time. By setting the lifting assembly to drive the disc holder to lift in the first direction to separate / enter the heating groove, the disc holder is replaced when separated from the heating groove to heat multiple batches of pipe bodies. The rewarming device is simple to operate and can realize simultaneous rewarming of multiple pipe bodies on the same batch of disc holders.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of cryopreservation tube rewarming, in particular to a rewarming device. BACKGROUND

[0002] Cryopreserved cell tissues must be rewarmed, and the activity of the cell tissues after rewarming directly affects the use effect downstream after rewarming.

[0003] Artificial water bath is used to rewarm the cryopreservation tube containing cryopreserved cell tissues. Although this rewarming method is simple to operate, the number of tubes that can be rewarmed at one time is limited. In addition, since the rewarming method is usually performed manually, the rewarming process is controlled entirely by the experience of the operator, so there will be great differences in the rewarming of tubes in different batches. The rewarming method using a disc rack, the cryopreservation tubes outside the disc rack are thawed before the cryopreservation tubes inside the disc rack. SUMMARY

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a rewarming device.

[0005] The present disclosure provides a rewarming device, comprising:

[0006] A disc rack having a plurality of placement areas, the plurality of placement areas being distributed in a radial direction;

[0007] A heating tank comprising an open accommodating cavity formed by a wall portion, and a normal projection of the disc rack in a first direction is located within a normal projection of the heating tank in the first direction, the first direction being arranged transversely to the radial direction, and the accommodating cavity has a plurality of heating areas in the radial direction, and the plurality of heating areas are arranged one-to-one corresponding to the plurality of placement areas;

[0008] A lifting assembly detachably connected with the disc rack and driving the disc rack to lift in the first direction to disengage / engage the accommodating cavity;

[0009] A rotating assembly, at least one of the lifting assembly and the disc rack being connected with the rotating assembly.

[0010] Optionally, the disc rack comprises a disc body, and a plurality of through holes are arranged on the disc body, and the through holes are used for clamping the tubes;

[0011] Each of the placement areas comprises a plurality of through holes distributed in a circumferential direction.

[0012] Optionally, the heating tank comprises at least one annular plate, the annular plate being arranged in extension in the first direction, and at least one of the annular plates separates the accommodating cavity into a plurality of heating areas distributed in the radial direction, and a heating body is arranged in each of the heating areas.

[0013] Optionally, a temperature detection sensor is arranged in each heating area.

[0014] Optionally, the lifting assembly comprises a first driving member and a lifting rod connected with the first driving member, the lifting rod has a connecting portion, and the connecting portion is detachably connected with the disc rack.

[0015] The lifting rod and the first driving member are embedded in the wall portion.

[0016] Optionally, the rotating assembly comprises a first driving motor, the first driving motor is connected with the lifting rod to drive the lifting rod to rotate.

[0017] Optionally, the first driving member comprises any one of a telescopic cylinder, a telescopic rod and a linear module.

[0018] Optionally, the lifting assembly comprises a second driving member, a lifting table, a sliding rail arranged along the first direction and a sliding block connected with the lifting table, the sliding block is slidably connected with the sliding rail.

[0019] The second driving member comprises a rack, a gear in transmission connection with the rack and a second driving motor connected with the gear, and any one of the rack and the gear is connected with the lifting table.

[0020] The lifting table is detachably connected with the disc rack.

[0021] Optionally, the rotating assembly is connected between the lifting table and the disc rack, the rotating assembly comprises a third driving motor and a rotating shaft, one end of the rotating shaft is connected with the third driving motor, and the other end of the rotating shaft is detachably connected with the disc rack.

[0022] Optionally, the rewarming device further comprises a box body, and the heating groove, the disc rack and the lifting assembly are arranged in the box body.

[0023] Compared with the prior art, the technical scheme provided by the embodiments of the present disclosure has the following advantages:

[0024] The rewarming device provided in this embodiment features a tray with multiple placement areas along the radial direction and a heating tank with multiple heating areas along the radial direction. Each placement area corresponds to one heating area, allowing different placement areas to be heated in different heating zones. At least one of the lifting assembly and the tray is connected to a rotating assembly to drive the tray to rotate. The reciprocating rotation of the tray allows for rapid and uniform heat exchange between the tubes on the tray and the fluid medium in the heating zone, resulting in more uniform heating of the frozen samples inside the tubes under vibration. Different placement areas are used to place tubes; that is, tubes of the same batch on the tray can achieve the target thawing effect by being placed in different placement areas and heated within the same time period. The lifting assembly drives the tray to move up and down in a first direction to detach from / enter the heating tank. When detaching from the heating tank, the tray is replaced to heat multiple batches of tubes. The rewarming device is simple to operate and can simultaneously rewarm multiple tubes on the same batch of trays. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0026] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of the rewarming device described in an embodiment of the present disclosure;

[0028] Figure 2 This is a three-dimensional structural diagram of the heating tank described in an embodiment of this disclosure;

[0029] Figure 3 This is a three-dimensional structural diagram of a lifting assembly according to an embodiment of the present disclosure;

[0030] Figure 4 This is a schematic diagram of the rewarming device according to another embodiment of the present disclosure;

[0031] Figure 5 This is a three-dimensional structural diagram of the rewarming device described in an embodiment of this disclosure from another angle;

[0032] Figure 6 This is a three-dimensional structural diagram of the rewarming device described in an embodiment of this disclosure from another angle.

[0033] The components are: 1. Plate frame; 2. Heating tank; 21. Annular plate; 22. Heating element; 23. Temperature sensor; 24. Liquid inlet.

[0034] 3, lifting assembly; 31, lifting rod; 311, locking part; 32, lifting platform;

[0035] 33, sliding rail; 34, sliding block; 35, rack; 36, gear; 37, second driving motor;

[0036] 38, third driving motor; 39, rotating shaft; 301, bearing frame;

[0037] 4, box body; 41, outer plate; 42, inner plate; 43, limiting part; 44, bottom plate; 45, front plate; 451, door plate; 452, limiting piece; 5, control panel; 6, pipe body;

[0038] X, first direction. DETAILED DESCRIPTION

[0039] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present disclosure, the schemes of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0040] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other manners different from those described herein; obviously, the embodiments described in the specification are only a part of the embodiments of the present disclosure, and not all the embodiments.

[0041] Rewarming is a necessary procedure for recovering the activity of low-temperature frozen cells and tissues, and the activity of cells and tissues after rewarming will directly affect their downstream use. In the related art, artificial water bath is used to rewarm a plurality of pipe bodies 6 containing cells and tissues. Although this rewarming method is simple to operate, the number of pipe bodies that can be rewarmed at one time is limited, and since the rewarming process is generally controlled by hand, the rewarming process is entirely dependent on the experience of the operator, so there will be a large difference in the rewarming of pipe bodies on different batches of racks, and it is difficult to standardize. For a large number of pipe bodies 6 that need to reach different target temperatures, the labor time of manual water bath operation is long, and it is difficult to accurately control the rewarming rate.

[0042] The plurality of pipe bodies distributed along the radial direction on the rack have a consistent rotational angular velocity of the rack, so that the linear velocity of the pipe bodies located on the outer side of the rack is higher than that of the pipe bodies located on the inner side of the rack, and the rate of heat exchange between the pipe bodies located on the outer side of the rack and the water in the heating zone is significantly higher than that of the pipe bodies located on the inner side of the rack. If the same heating zone is used to heat and rewarm the plurality of pipe bodies distributed along the radial direction on the rack, the outer pipe bodies will have reached the target rewarming temperature while the inner pipe bodies will not have completely thawed at the same time, and it is difficult for the plurality of pipe bodies 6 in the same batch to simultaneously reach the preset target rewarming temperature.

[0043] Based on this, the present embodiment provides a rewarming device,Figure 1 A perspective view of the rewarming device according to an embodiment of the present disclosure is shown in the figure; Figure 2 A perspective view of the heating groove 2 according to an embodiment of the present disclosure is shown in the figure; Figure 3 A perspective view of the lifting assembly 3 according to an embodiment of the present disclosure is shown in the figure; Figure 4 A perspective view of the lifting assembly 3 according to another embodiment of the present disclosure is shown in the figure; Figure 5 A perspective view of the rewarming device according to an embodiment of the present disclosure is shown in the figure; Figure 6 A perspective view of the rewarming device according to an embodiment of the present disclosure is shown in the figure. The rewarming device will be described in detail below through specific embodiments:

[0044] Referring to Figures 1 to 6 The embodiment provides a rewarming device, which comprises a disc rack 1 having a plurality of placement areas in the radial direction, a heating groove 2 having a plurality of heating areas in the radial direction, and a plurality of placement areas and a plurality of heating areas are arranged one by one, so that different placement areas can be heated in different heating areas. The lifting assembly 3 is detachably connected with the disc rack 1 and drives the disc rack 1 to ascend / descend along the first direction X to separate / enter the accommodating cavity. At least one of the lifting assembly 3 and the disc rack 1 is connected with the rotating assembly to drive the disc rack to rotate. At least one of the lifting assembly 3 and the disc rack 1 is connected with the rotating assembly. After the disc rack 1 enters the heating groove 2, the disc rack 1 can be rotated and heated. The tube body 6 placed on the disc rack 1 has a relative speed with the medium (such as water) in the heating area, so that the heat exchange efficiency is better. And the tube body 6 oscillates with the tube body 6 when the disc rack 1 rotates, so that the cell tissue inside the tube body 6 is heated more uniformly. The disc rack rotates at a consistent angular velocity, so that the linear velocity of the tube body located on the outer side of the disc rack is higher than that of the tube body located on the inner side of the disc rack. The rate of heat exchange between the tube body located on the outer side of the disc rack and the water in the heating area is obviously higher than that of the tube body located on the inner side of the disc rack. The plurality of placement areas and the plurality of heating areas are arranged one by one, and the temperature of the heating area corresponding to the tube body located on the outer side of the disc rack is lower than that of the heating area corresponding to the tube body located on the inner side of the disc rack. The disc rack is placed in the heating groove to heat and rewarm in the same period of time, and the target thawing effect is achieved.

[0045] The positive projection shape of the tray 1 and the heating groove 2 in the first direction X includes but is not limited to a circle, an ellipse and a polygon, and a plurality of placement areas are distributed along the radial direction. The heating groove 2 includes an open accommodating cavity formed by a wall portion, and the positive projection of the tray 1 in the first direction X is located within the positive projection of the heating groove 2 in the first direction X, so that after the tray 1 enters the heating groove 2, all the tubes 6 placed on the tray 1 can enter the heating groove 2 for heating and warming up. The first direction X is arranged to intersect the radial direction, for example, the first direction X is arranged to be perpendicular to the radial direction. The lifting assembly 3 is arranged to drive the tray 1 to ascend and descend along the first direction X to separate from / enter the heating groove 2, and when separating from the heating groove 2, the tray 1 is replaced to heat a plurality of batches of tubes 6.

[0046] Of course, if the same batch of tubes on the tray needs different target temperatures for rewarming, the rewarming device provided in the embodiment has the heating groove 2 with a plurality of heating areas along the radial direction, and the plurality of placement areas are arranged one by one with the plurality of heating areas, so that different placement areas can be heated in different heating areas. The rewarming device is simple to operate and can perform multi-target temperature rewarming operation on the tubes 6 on the same batch of trays 1, saving time and effort.

[0047] In some embodiments, the tray 1 includes a disc body, and a plurality of through holes are arranged on the disc body and used for clamping the tubes 6. Each placement area includes a plurality of through holes distributed along the circumferential direction. The through holes located on the same circumferential radius are taken as a through hole group, and one temperature heating area corresponds to at least one through hole group. In this way, the tray 1 has a simple structure and facilitates the differentiation of tubes 6 with different target temperatures.

[0048] In some embodiments, the heating groove 2 includes at least one annular plate 21 arranged to extend along the first direction X, and the at least one annular plate 21 separates the accommodating cavity into a plurality of heating areas distributed along the radial direction. The heating areas can be used to fill fluid medium (for example, water), and a heating body 22 is arranged in each heating area. The heating body 22 can be a heating coil arranged on the bottom wall of the accommodating cavity, or can be a heating rod or other heating member arranged in each heating area. The heating power of the heating body 22 in each heating area is different, so that the plurality of heating areas on the same tray 1 can reach different target temperatures in the same heating time. The wall portion of the heating groove 2 is further provided with an inlet 24 and an outlet for fluid medium, which facilitates the replacement or supplement of the fluid medium.

[0049] In some embodiments, a temperature detection sensor 23 is arranged in each heating area. The temperature detection sensor 23 can accurately and timely feedback the heating temperature of the corresponding heating area, so that the rewarming accuracy is higher. For example, the temperature detection sensor 23 is connected to the annular plate 21.

[0050] The heating zone heats the corresponding tube body 6, and the temperature of the fluid medium in the heating zone is fed back in real time by the temperature detection sensor 23 in the heating zone until the temperature of the fluid medium reaches the target temperature.

[0051] In some embodiments, the lifting assembly 3 comprises a first driving member and a lifting rod 31 connected with the first driving member, the lifting rod 31 has a connecting portion which is detachably connected with the tray 1. And / or: the lifting rod 31 and the first driving member are embedded in the wall portion. Specifically, a hollow mounting column can be formed in the center of the bottom wall of the wall portion in the first direction X towards the tray 1, and the lifting rod 31 and the first driving member are arranged in the hollow mounting column. The first driving member comprises any one of a telescopic cylinder, a telescopic rod and a linear module. The first driving member drives the lifting rod 31 to lift in the first direction X. The connecting portion is provided with a locking portion 311 at the connecting position with the tray 1. Specifically, the tray 1 is provided with a through hole in the center, and the center of the connecting portion is partially protruded to form a connecting shaft which is provided with external threads. After the connecting shaft is inserted into the through hole, the connecting shaft is screwed with a locking nut.

[0052] In some embodiments, the rotating assembly comprises a first driving motor connected with the lifting rod 31 to drive the lifting rod 31 to rotate. After the tray 1 enters the heating tank 2, the tray 1 can be rotated to be heated. The tube body 6 placed on the tray 1 has a relative speed with the medium (such as water) in the heating zone, so that a better forced convection heat exchange effect is achieved. When the tray 1 rotates, the tube body 6 oscillates to make the cell tissue inside the tube body 6 be heated more uniformly. The output shaft of the first driving motor can be connected with the first driving member, or the output shaft of the first driving motor is connected with the connecting portion.

[0053] In some embodiments, the lifting assembly 3 comprises a second driving member, a lifting platform 32, a sliding rail 33 arranged in the first direction X and a sliding block 34 connected with the lifting platform 32, the sliding block 34 is slidably connected with the sliding rail 33. The second driving member comprises a rack 35, a gear 36 in transmission connection with the rack 35 and a second driving motor 37 connected with the gear 36, any one of the rack 35 and the gear 36 is connected with the lifting platform 32, and a speed reducer can be further connected between the second driving motor 37 and the gear 36. The lifting platform 32 is detachably connected with the tray 1. The sliding block 34 can be provided with two, the sliding block 34 has opposite connecting ends and a sliding end matched with the sliding rail 33, the two sides of the lifting platform 32 are connected with the connecting ends of the sliding blocks 34, and the connection modes include but are not limited to welding, integrally formed by injection molding, bonding and fastener connection. The sliding end of each sliding block 34 is slidably connected with at least one sliding rail 33.

[0054] In some embodiments, the rewarming device further comprises a cabinet 4, and the heating tank 2, the tray rack 1 and the lifting assembly 3 are all arranged in the cabinet 4. The slide rails 33 are connected with the cabinet 4. For example, the cabinet 4 has opposite two side walls, and the two side walls are sandwich structures including an outer plate 41 and an inner plate 42 arranged in layers. A cavity is formed between the outer plate 41 and the inner plate 42, and the slide rails 33 are located in the cavity. The height of the inner plate 42 is lower than the height of the outer plate 41, and the height difference between the inner plate 42 and the outer plate 41 is the movable stroke of the sliding block 34 along the first direction X. Further, the edge of the inner plate 42 extends radially to form a limiting portion 43. When the lifting platform 32 is lowered to the lowest position by the sliding block 34, the limiting portion 43 limits the lifting platform 32. The lowest position can be that the pipe body 6 on the tray rack 1 completely enters the heating zone, and if the pipe body 6 continues to move downward, it will collide with the bottom of the heating tank 2 and be damaged. The output shaft of the second driving motor 37 is connected with the gear 36 to drive the gear 36 to rotate. As an implementable manner, the mounting seat of the second driving motor 37 is connected with the lifting platform 32, the rack 35 is connected with the outer plate 41, the second driving motor 37 drives the gear 36 to rotate, and the gear 36 moves along the first direction X under the action of the rack 35. As another implementable manner, the mounting seat of the second driving motor 37 is connected with the outer plate 41, and the rack 35 is connected with the lifting platform 32 (or the connecting end of the sliding block 34). The gear 36 and the rack 35 are located on the same side of the sliding block 34, so that the output shaft of the motor passes through the sliding block 34 and is connected with the gear 36.

[0055] In some implementable embodiments, the bottom plate 44 of the cabinet 4, the two side walls, the front plate 45 and the top plate form a structure body with a closed cavity. The bottom plate 44 has a certain thickness, and one side of the bottom plate 44 close to the closed cavity is recessed along the first direction X away from the closed cavity to form the heating tank 2 in a recess structure.

[0056] In some embodiments, the rotating assembly is connected between the lifting platform 32 and the tray rack 1, the rotating assembly comprises a third driving motor 38 and a rotating shaft 39, one end of the rotating shaft 39 is connected with the third driving motor 38, and the other end of the rotating shaft 39 is detachably connected with the tray rack 1. The detachable connection between the rotating shaft 39 and the tray rack 1 includes but is not limited to buckle type, pin type and magnetic type. Specifically, the bearing frame 301 is located below the lifting platform 32 along the first direction X, the bearing frame 301 comprises a bearing plate and a plurality of connecting rods connected between the lifting platform 32 and the bearing plate. The second driving motor 37 is arranged on the bearing plate, the middle part of the bearing plate is provided with a through hole, the output shaft of the second driving motor 37 is connected with the rotating shaft 39, the output shaft of the second driving motor 37 and the rotating shaft 39 are located in the through hole, a bearing is arranged between the part located in the through hole and the hole wall of the through hole, and the bearing can be a thrust bearing. Further, the output shaft of the second driving motor 37 and the rotating shaft 39 are connected through a shaft coupling. So that the connection in the whole transmission process is more stable.

[0057] In addition, in some embodiments, the front plate 45 of the box body 4 is further provided with an opening and a door plate 451 connected with the opening, the shape and size of the opening are matched with the tray rack 1 to facilitate the replacement of the tray rack 1, and of course, it also includes the space for the operator to manually disassemble or install the tray rack 1. For example, the door plate 451 is rotationally connected with part of the edge of the opening, and a limiting piece 452 is connected between the door plate 451 and the inner wall of the box body 4 to limit the opening and closing angle of the door plate 451. The limiting piece 452 can be two hinged connecting rods.

[0058] The front plate 45 of the box body 4 can also be provided with a control panel 5, the control panel 5 is embedded in the front plate 45, and the control panel 5 has an interactive operation module. The lifting assembly 3, the temperature detection sensor 23, the heating body 22 and the interactive operation module are all coupled with the controller. The interactive operation module is provided with a plurality of rewarming programs, each rewarming program has corresponding heating time and heating power of the heating body 22. Of course, in order to remind the operator, a prompting component such as a buzzer or an indicator light can also be installed on the box body 4, and the prompting component is coupled with the controller.

[0059] The rewarming device provided by the embodiment can first select a corresponding rewarming program in the interactive operation module of the equipment for the frozen sample to be rewarmed. According to the real-time temperature fed back by the temperature detection sensor 23 in each heating area, the power of the corresponding heating body 22 is further controlled to further meet the requirement that the water (or other medium) in each heating area can reach the temperature preset by the program at the same time. The rewarming operation standardization, the rewarming process efficiency and the rewarming quality optimization are realized. The rewarming operation standardization means that different batches can achieve rewarming consistency, the rewarming process efficiency is reflected in a high number of tube bodies treated at one time, and the rewarming quality optimization is reflected in that the program control rewarming process can optimize the rewarming process.

[0060] The rewarming device provided by the embodiment is used in the following way: the door plate 451 is opened, the rewarming tray 1 is disassembled, and the cryopreserved tube body 6 taken out from the low-temperature refrigeration equipment or the liquid nitrogen Dewar is quickly placed in the tray 1, then the tray 1 with the tube body 6 is installed in the lifting assembly 3 (or connected with the lifting assembly 3 through the rotating assembly), and the door plate 451 is closed. The lifting assembly 3 works to drive the tray 1 to move along the first direction X towards the heating groove 2 until the tube body 6 enters the heating groove 2, and the plurality of heating zones in the heating groove 2 heat the corresponding tube body 6 entering the heating groove 2 to be rewarming. When the rewarming of the tube body 6 is completed, the lifting assembly 3 drives the tray 1 to move away from the heating groove 2 along the first direction X until the tube body 6 is separated from the heating groove 2. In this process, when the tube body 6 is in the heating groove 2, the rotating assembly works to directly or indirectly drive the tray 1 to rotate.

[0061] It should be noted that the relational terms herein such as "first" and "second" and the like are used only to differentiate one entity or action from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or actions. Also, the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or device including the element.

[0062] The above description is only a specific implementation of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rewarming device, characterized in that, The rewarming device comprises: a disc holder (1) having a plurality of placement areas distributed in a radial direction; a heating groove (2) comprising an open accommodating cavity enclosed by a wall portion, and a projection of the disc holder (1) in a first direction (X) is located within a projection of the heating groove (2) in the first direction (X), the first direction (X) intersects the radial direction, the accommodating cavity has a plurality of heating areas in the radial direction, and the plurality of heating areas are arranged one by one corresponding to the plurality of placement areas, and a temperature of the heating area corresponding to the pipe body located outside the disc holder (1) is lower than that of the heating area corresponding to the pipe body located inside the disc holder (1); a lifting assembly (3) detachably connected with the disc holder (1) and driving the disc holder (1) to lift in the first direction (X) to be separated from / enter the accommodating cavity; a rotating assembly, and at least one of the lifting assembly (3) and the disc holder (1) is connected with the rotating assembly.

2. The rewarming device according to claim 1, wherein the disc holder (1) comprises a disc body provided with a plurality of through holes for clamping the pipe body (6); each placement area comprises a plurality of through holes distributed in a circumferential direction.

3. The rewarming device according to claim 1, wherein the heating groove (2) comprises at least one annular plate (21) extending in the first direction (X), and at least one annular plate (21) separates the accommodating cavity into a plurality of heating areas distributed in the radial direction, and each heating area is provided with a heating body (22).

4. The rewarming device according to claim 3, wherein each heating area is provided with a temperature detection sensor (23).

5. The rewarming device of claim 4, wherein, the lifting assembly (3) comprises a first driving member and a lifting rod (31) connected with the first driving member, the lifting rod (31) has a connecting portion detachably connected with the disc holder (1); and / or the lifting rod (31) and the first driving member are embedded in the wall portion.

6. The rewarming device according to claim 5, wherein the rotating assembly comprises a first driving motor connected with the lifting rod (31) to drive the lifting rod (31) to rotate.

7. The rewarming device according to claim 5 or 6, wherein the first driving member comprises any one of an extension cylinder, an extension rod and a linear module.

8. The rewarming device according to claim 5, wherein the lifting assembly (3) comprises a second driving member, a lifting table (32), a sliding rail (33) arranged in the first direction (X) and a sliding block (34) connected with the lifting table (32), and the sliding block (34) is slidably connected with the sliding rail (33). The second driving member comprises a rack (35), a gear (36) in transmission connection with the rack (35), and a second driving motor (37) connected with the gear (36), and any one of the rack (35) and the gear (36) is connected to the lifting platform (32). The lifting platform (32) is detachably connected with the disc rack (1).

9. The rewarming device according to claim 8, characterized in that, The rotating assembly is connected between the lifting platform (32) and the disc rack (1), and comprises a third driving motor (38) and a rotating shaft (39), one end of the rotating shaft (39) is connected with the third driving motor (38), and the other end of the rotating shaft (39) is detachably connected with the disc rack (1).

10. The rewarming device of claim 1, wherein, The rewarming device further comprises a box body (4), and the heating groove (2), the disc rack (1) and the lifting assembly (3) are all arranged in the box body (4).

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