CN221245033U - Cooling device and battery production system - Google Patents

Abstract

The application relates to a cooling device and a battery production system, comprising: a cooling tank comprising a mixing chamber and a first space, the first space being arranged around the mixing chamber and being adapted to be circulated by a cooling medium; the stirring mechanism is rotatably arranged in the cooling tank, and a second space for cooling medium circulation is formed in the part of the stirring mechanism, which is positioned in the mixing cavity; the scraping wall piece is positioned in the mixing cavity and is arranged on the stirring mechanism; the scraping wall piece can scrape materials on the cavity wall of the mixing cavity in the process of following the rotation of the stirring mechanism. According to the technical scheme, the cooling effect and the cooling efficiency of the cooling device can be greatly improved.

Description

Cooling device and battery production system

Technical Field

The application relates to the technical field of cooling equipment, in particular to a cooling device and a battery production system.

Background

In a pulping process such as a lithium battery, materials are mixed and dispersed. In the process of mixing and dispersing materials, heat is generated, so that the temperature of the materials is continuously increased, and the materials are damaged by the excessively high temperature, so that the materials are required to be cooled in the pulping process.

The cooling devices in the related art, such as a shell-and-tube cooler, a sleeve cooler, a jacket cooler and the like, are usually passive cooling, and the materials cannot effectively contact with a cooling structure in the cooling device, so that the cooling effect is poor; and most of the cooling devices are only cooled by pipelines, the cooling means are single, and the cooling efficiency is low.

Disclosure of utility model

Accordingly, it is necessary to provide a cooling device and a battery production system for solving the problems of low cooling effect and low cooling efficiency of the cooling device.

In a first aspect, the present application provides a cooling device comprising:

a cooling tank comprising a mixing chamber and a first space, the first space being arranged around the mixing chamber and being adapted to be circulated by a cooling medium;

the stirring mechanism is rotatably arranged in the cooling tank, and a second space for cooling medium circulation is formed in the part of the stirring mechanism, which is positioned in the mixing cavity; and

The wall scraping piece is positioned in the mixing cavity and is arranged on the stirring mechanism; the scraping wall piece can scrape materials on the cavity wall of the mixing cavity in the process of following the rotation of the stirring mechanism.

In the technical scheme of the embodiment of the application, the cooling tank is provided with the first space, and the cooling medium flowing in the first space can cool the materials in the mixing cavity; simultaneously, form the second space in the rabbling mechanism, the material in the compounding intracavity also can be cooled off to the coolant medium of circulation in the second space, so the accessible cooling tank and rabbling mechanism carry out double cooling to the material. In addition, the scraping wall piece can scrape the materials adhered/solidified on the cavity wall of the mixing cavity in time, and the cooling effect of the cooling medium in the first space can be further improved. Thus, the cooling effect and the cooling efficiency of the cooling device can be greatly improved.

In some embodiments, the stirring mechanism comprises a stirring shaft and a stirring portion, the stirring portion being disposed on a peripheral wall of the stirring shaft; the stirring shaft is rotatably arranged in the cooling tank, and all stirring parts are positioned in the mixing cavity; the stirring shaft and/or the stirring part are/is internally provided with the second space.

In some embodiments, the stirring shaft includes a medium inflow channel and a medium outflow channel forming the second space itself; the stirring part comprises at least one group of cooling pipelines, the second space is formed inside each group of cooling pipelines, and each group of cooling pipelines is communicated between the medium inflow channel and the medium outflow channel.

In some embodiments, each set of the cooling conduits includes a plurality of first conduits, each of the first conduits of a same set being in parallel communication with each other between the medium inflow passage and the medium outflow passage.

In some embodiments, each group of the cooling pipes includes a plurality of second pipes, and each of the second pipes of the same group is connected in a sequentially bent manner and is commonly connected between the medium inflow passage and the medium outflow passage.

In some embodiments, each set of the cooling ducts includes an inlet end in communication with the medium inflow channel and an outlet end in communication with the medium outflow channel, the inlet end and the outlet end being spaced apart in an axial direction of the stirring shaft.

In some embodiments, the stirring shaft includes a butt end at an axial end of the stirring shaft; the medium outflow channel and the medium inflow channel both penetrate through the butt end, and one of the two is arranged around the periphery of the other one, which surrounds the axial direction of the stirring shaft.

In some embodiments, the wall scraping member comprises a connecting section and a wall scraping section, wherein the connecting section is arranged on the stirring mechanism; the scraping wall section is arranged on the connecting section and is used for scraping materials on the cavity wall of the mixing cavity.

In some embodiments, the scraping wall section extends away from the connecting section towards the cavity wall of the mixing cavity, and the extending direction of the scraping wall section and the tangential plane of the cavity wall of the mixing cavity form an angle alpha, wherein alpha is less than or equal to 90 degrees.

In some embodiments, the scraping wall section comprises a plurality of scraping wall sections, and the plurality of scraping wall sections are staggered in the axial direction of the stirring mechanism.

In some embodiments, the cooling tank comprises a material inlet and a material outlet, both in communication with the mixing chamber; the material inlet is positioned below the material outlet.

In a second aspect, the present application provides a battery production system including the cooling device in the above embodiment.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is an exterior view of a cooling device according to one or more embodiments.

Fig. 2 is a schematic view of the internal structure of the cooling device shown in fig. 1.

FIG. 3 is a schematic diagram of a combination of a stirring mechanism and a scraper according to one or more embodiments.

FIG. 4 is a schematic diagram of the internal structure of a stirring mechanism according to one or more embodiments.

Fig. 5 is a schematic illustration of the external configuration of a stirring mechanism according to another or more embodiments.

Fig. 6 is a schematic view of the internal structure of the stirring mechanism shown in fig. 5.

Fig. 7 is a schematic top view of the stirring mechanism shown in fig. 5.

FIG. 8 is a schematic diagram of a combination of a wall scraping member and a stirring mechanism according to one or more embodiments.

Reference numerals in the specific embodiments are as follows:

100. A cooling device; 10. a cooling tank; 11. an inner wall body; q, mixing cavity; w1, a material inlet; w2, a material outlet; 12. an outer wall body; 12a, media inlet; 12b, medium outlet; k1, a first space; 20. a stirring mechanism; k2, a second space; 21. a stirring shaft; F. an axis; 21c, a butt end; j1, medium inflow channel; j2, medium outflow channel; 22. a stirring section; 22d, cooling pipes; d1, a first pipeline;

d2, a second pipeline; I. an inlet end; o, an outlet end; 30. a wall scraping member; 31. scraping a wall section; 32. a connection section; 40. supporting feet; 50. a driving mechanism.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, if any, designate orientations or positional relationships based on the figures, are merely for convenience in describing the present application and to simplify the description, and do not designate or imply that the apparatus or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the application.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

The application provides a cooling device aiming at the problems that the material cannot be effectively cooled and the cooling efficiency is low due to single cooling means when materials are mixed by the related cooling device. According to the cooling device provided by the embodiment of the application, the stirring and mixing of materials are realized through the mixing cavity and the stirring mechanism positioned in the mixing cavity; meanwhile, a cooling medium is circulated by using a cooling tank and a stirring mechanism, so that the materials in the mixing cavity are cooled in a double way; in addition, when the scraping wall piece rotates along with the stirring mechanism, the cooled materials adhered to the cavity wall of the mixing cavity are scraped in time, and the cooling effect of the cooling tank on the materials can be improved. The cooling device has the beneficial effects of high cooling effect and high cooling efficiency.

The cooling device provided by the embodiment of the application can be applied to the preparation of slurry, and the slurry can be used for the slurry for the lithium battery electrode but is not limited to the slurry. In addition, the cooling device provided by the embodiment of the application can be also applied to a scene of cooling high-temperature slurry, for example, the cooling device is arranged on a conveying path of the high-temperature slurry.

The cooling device provided by the embodiment of the application is applied to a battery production system, and electrode slurry is produced by using the cooling device. Generally, the electrode slurry includes a solvent, an active material, a binder, and the like. The battery production system may include a coating device, a drying device, a slitting device, a die cutting device, and the like, in addition to the cooling device.

The cooling device provided by the embodiment of the application is described in detail below.

Fig. 1 is an exterior view of a cooling device 100 according to one or more embodiments. Fig. 2 is a schematic view of the internal structure of the cooling device 100 shown in fig. 1. Fig. 3 is a schematic diagram of a combination of a stirring mechanism 20 and a scraper according to one or more embodiments.

Referring to fig. 1 to 3, a cooling device 100 according to one or more embodiments of the present application includes a cooling tank 10, a stirring mechanism 20, and a scraping member 30, wherein the cooling tank 10 includes a mixing chamber Q and a first space K1, and the first space K1 is disposed around the mixing chamber Q and is used for circulating a cooling medium. The stirring mechanism 20 is rotatably disposed in the cooling tank 10, and a second space K2 through which the cooling medium flows is formed in a portion of the stirring mechanism 20 located in the mixing chamber Q. The scraping wall piece 30 is located in the mixing cavity Q and is arranged on the stirring mechanism 20, and the scraping wall piece 30 can scrape materials on the cavity wall of the mixing cavity Q in the process of following the rotation of the stirring mechanism 20.

The cooling tank 10 encloses a mixing chamber Q that provides a containment location for the mixing of various materials. It is understood that the mixing chamber Q has a channel for feeding material in and out, and the channel for feeding material in and the channel for feeding material out may be the same channel or different channels.

The first space K1 is a space formed in the cooling tank 10 and capable of communicating with an external medium source. The external medium source may form a medium circuit with the first space K1 for circulating the cooling medium. The cooling medium may be, but is not limited to, water, gaseous refrigerant, cooling oil, and the like. Various embodiments are possible with respect to the formation of the first space K1. Illustratively, a medium pipe may be wound around an outer wall of a can body (can body enclosing forming the mixing chamber Q) of the cooling can 10, and the first space K1 may be formed by a space inside the medium pipe. As another example, a cooling structure such as a cooling plate that can communicate with a medium source may be attached to a partial region of the tank body of the cooling tank 10. Of course, the first space K1 may also be a sandwich space formed inside the tank body of the cooling tank 10.

The first space K1 is arranged around the mixing cavity Q, the first space K1 is arranged annularly around the cavity wall of the mixing cavity Q, and the first space K1 is arranged on part of the cavity wall of the mixing cavity Q. Understandably, the cooling medium flowing in the first space K1 can reduce the temperature of the cavity wall of the mixing cavity Q, and cool the material in the mixing cavity Q through the cavity wall of the mixing cavity Q.

Generally, and without limitation, as shown in fig. 2, the stirring mechanism 20 is rotatably provided on the cooling tank 10 about an axis F parallel to the height direction of the cooling device 100. It is understood that the cooling device 100 further comprises a driving mechanism 50, wherein the driving mechanism 50 is in transmission connection with the stirring mechanism 20 for driving the stirring mechanism 20 to rotate. The driving mechanism 50 may be located outside the mixing chamber Q, and part of the stirring mechanism 20 may be located outside the mixing chamber Q and in transmission connection with the driving mechanism 50, and another part is located inside the mixing chamber Q for material stirring. Of course, if the drive mechanism 50 is disposed within the mixing chamber Q, the entirety of the stirring mechanism 20 may be located within the mixing chamber Q.

The stirring mechanism 20 is located in a portion of the mixing chamber Q for stirring the material, in which a second space K2 is formed. The second space K2 may form a medium circuit with an external medium source, and when the cooling medium circulates in the second space K2, the temperature of the material may be reduced by the stirring mechanism 20.

The scraping member 30 may be fixedly provided to the stirring mechanism 20, or may be movably provided to the stirring mechanism 20 in the axial direction of the stirring mechanism 20, and may be conventionally provided by those skilled in the art. The scraping member 30 is capable of scraping off the material adhering to the cavity wall of the mixing cavity Q. Specifically, when the scraping member 30 is disposed, the scraping member 30 may abut against the cavity wall of the mixing cavity Q, and a certain gap may be maintained therebetween, so long as the scraping member may function to scrape the material adhering to the cavity wall of the mixing cavity Q.

The portion of the scraper 30 in contact with the mixing chamber Q may be a flexible portion to reduce wear of the scraper 30 against the walls of the mixing chamber Q. The wall scraping member 30 may be a plastic member such as a nylon member, a rubber member, or the like.

In an application situation, the material is poured into the mixing cavity Q, and the first space K1 and the second space K2 are filled with a gaseous refrigerant. The material in the mixing cavity Q is uniformly mixed under the stirring of the stirring mechanism 20, fully contacts with the cavity wall of the mixing cavity Q and the stirring mechanism 20, and is fully cooled. The cooled material adhered/solidified on the cavity wall of the mixing cavity Q is scraped by the scraping wall member 30, and the mixing cavity Q can be fully contacted with the high-temperature material.

In the cooling device 100, the cooling tank 10 is provided with a first space K1, and the cooling medium flowing in the first space K1 can cool the material in the mixing cavity Q; meanwhile, a second space K2 is formed in the stirring mechanism 20, and the materials in the mixing cavity Q can be cooled by the cooling medium flowing in the second space K2, so that the materials can be cooled by the cooling tank 10 and the stirring mechanism 20 in a double way. In addition, the scraping wall member 30 can scrape off the material adhered/solidified on the cavity wall of the mixing cavity Q in time, and the cooling effect of the cooling medium in the first space K1 can be further improved. In this way, the cooling effect and the cooling efficiency of the cooling device 100 can be greatly improved.

Fig. 4 is a schematic diagram of the internal structure of stirring mechanism 20 according to one or more embodiments.

In some embodiments, referring to fig. 4, the stirring mechanism 20 includes a stirring shaft 21 and a stirring portion 22, the stirring portion 22 is disposed on a peripheral wall of the stirring shaft 21, the stirring shaft 21 is rotatably disposed in the cooling tank 10, and all stirring shafts 21 are disposed in the mixing chamber Q. The stirring shaft 21 and/or the stirring section 22 have a second space K2 formed therein.

The stirring shaft 21 is a rotary structure having the axis F of the stirring mechanism 20 as a central axis, and the stirring shaft 21 may be a hollow shaft. In the present embodiment, the "axis F" is referred to as both the central axis of the stirring shaft 21 and the rotation axis of the stirring mechanism 20. The driving mechanism 50 is in transmission connection with the stirring shaft 21, and drives the stirring part 22 to rotate by driving the stirring shaft 21 to rotate. The peripheral wall of the stirring shaft 21 is an outer wall surface provided around the axis F of the stirring mechanism 20.

The stirring section 22 is provided on the peripheral wall of the stirring shaft 21, and the stirring section 22 and the stirring shaft 21 may be welded, bonded, integrally connected, or the like. The stirring section 22 may be a stirring blade, a stirring rod, or the like. The stirring portion 22 may be continuously disposed on the stirring shaft 21, for example, the stirring portion 22 is spirally disposed on the stirring shaft 21 along the axis F. The stirring portion 22 may be provided intermittently on the stirring shaft 21, for example, the stirring portion 22 may include a plurality of stirring blades provided at intervals around the axis F on the peripheral wall of the stirring shaft 21.

At least one of the stirring section 22 and the stirring shaft 21 is formed with a second space K2, and when the cooling medium flows through the second space K2, the material can be cooled by the stirring shaft 21 and/or the stirring section 22.

At this time, the second space K2 may be formed by the stirring portion 22 and/or the stirring shaft 21, and during stirring, the stirring portion 22 and the stirring shaft 21 may be fully contacted with the material, so that the cooling effect on the material is better, and the cooling efficiency of the cooling device 100 may be improved.

In some embodiments, with continued reference to fig. 4, the stirring shaft 21 includes a medium inflow channel J1 and a medium outflow channel J2 forming a second space K2, and the stirring portion 22 includes at least one set of cooling pipes 22d, each set of cooling pipes 22d having the second space K2 formed therein, each set of cooling pipes 22d communicating between the medium inflow channel J1 and the medium outflow channel J2.

The medium inflow channel J1 is a channel through which the cooling medium enters the stirring shaft 21, and the medium outflow channel J2 is a channel through which the cooling medium exits the stirring shaft 21.

The cooling pipe 22d is a member having a tubular structure, and the cooling pipe 22d may be a circular pipe, a square pipe, an elliptical pipe, or the like. The cooling duct 22d may be a curved duct. The cooling pipes 22d may include a plurality of groups, and each group of cooling pipes 22d may be arranged at intervals around the axis F of the stirring shaft 21. Each set of cooling tubes 22d may include one or more cooling tubes 22d, and the cooling tubes 22d may be arranged side-by-side or in series. It is understood that the cooling duct 22d is provided on the peripheral wall of the stirring shaft 21.

At this time, the cooling medium of the medium source may enter the stirring shaft 21 and the stirring section 22 from the medium inflow channel J1, then flow out of the stirring shaft 21 from the medium outflow channel J2, and the second space K2 in the stirring shaft 21 and the second space K2 in the stirring section 22 are disposed in communication, so that the flow path of the cooling medium of the same medium source in the stirring mechanism 20 can be prolonged, the utilization rate of the cooling medium can be improved, and the structure of the stirring mechanism 20 can be simplified by taking the medium inflow channel J1 and the medium outflow channel J2 as the inlet and outlet of the medium into and out of the stirring mechanism 20.

In some embodiments, referring to fig. 3 and 4, each set of cooling ducts 22d includes a plurality of first ducts d1, with each first duct d1 of the same set communicating in parallel with each other between the medium inflow passage J1 and the medium outflow passage J2.

Each of the first pipes d1 has an inlet end I connected to and communicating with the medium inflow channel J1 and an outlet end O connected to and communicating with the medium outflow channel J2. The first pipes d1 are arranged in parallel, that is, the first pipes d1 are independently communicated between the medium inflow channel J1 and the medium outflow channel J2, that is, the first pipes d1 shunt the cooling medium flowing out of the medium inflow channel J1 and then are converged through the medium outflow channel J2.

In the embodiment shown in fig. 3 and 4, the plurality of first ducts d1 form a group of cooling ducts 22d, each group of first ducts d1 is arranged at intervals around the axis F of the stirring shaft 21, each first duct d1 of the same group extends in the axial direction of the stirring shaft 21, and the duct lengths of each first duct d1 are different, and the first duct d1 having a longer length surrounds the periphery of the first duct d1 having a shorter length. Of course, the arrangement of the first duct d1 is not limited to the illustrated one, and a person skilled in the art can make flexible settings.

At this time, the cooling medium flowing out of the medium inflow channel J1 is split by the plurality of first pipes d1, so that the contact area between the stirring section 22 and the material can be increased, the cooling effect of the stirring mechanism 20 can be improved, and the cooling efficiency of the cooling device 100 can be further improved.

Fig. 5 is a schematic diagram of the external configuration of stirring mechanism 20 according to another or more embodiments. Fig. 6 is a schematic view showing the internal structure of the stirring mechanism 20 shown in fig. 5. Fig. 7 is a schematic top view of the stirring mechanism 20 shown in fig. 5.

In some embodiments, referring to fig. 5 to 7, each set of cooling pipes 22d includes a plurality of second pipes d2, and the second pipes d2 of the same set are sequentially connected in a bent manner and are commonly connected between the medium inflow channel J1 and the medium outflow channel J2.

Each second pipeline d2 of the same group is sequentially connected in a bending way, specifically, each second pipeline d2 comprises a straight section and a turning section, the turning sections of the adjacent second pipelines d2 are connected, and the straight sections of all the second pipelines d2 are arranged in parallel. Understandably, there is communication between adjacent second pipes d 2. All the second pipes d2 are communicated as a whole between the medium inflow passage J1 and the medium outflow passage J2.

In this way, more pipes can be arranged in a limited space, the flow path of each path of cooling medium can be prolonged, the utilization rate of the cooling medium can be improved, and the cooling efficiency of the cooling device 100 can be further improved.

The bending connection path of each set of the second pipes d2 is not limited to the embodiment shown in fig. 7.

In some embodiments, referring to fig. 4 and 6, each set of cooling pipes 22d includes an inlet end I in communication with the medium fluid passage, and an outlet end O in communication with the medium outflow passage J2, the inlet end I and the outlet end O being spaced apart in the axial direction of the stirring shaft 21.

When each set of cooling ducts 22d includes a plurality of first ducts d1, each first duct d1 has an inlet end I and an outlet end O. When each set of cooling ducts 22d includes a plurality of second ducts d2, the inlet ends I of the set of cooling ducts 22d are located on the first second duct d2, and the outlet ends O of the set of cooling ducts 22d are located on the last second duct d 2.

In some cases, the axial direction of the stirring shaft 21 is the height direction of the cooling device 100, and the outlet end O may be located above the inlet end I or the outlet end O may be located above the inlet end I. At this time, the medium inflow channel J1 and the medium outflow channel J2 may be, but are not limited to, located on opposite sides of the stirring shaft 21 in the axial direction.

At this time, since the inlet ends I and the outlet ends O of the cooling pipes 22d of each group are staggered in the axial direction, each group of cooling pipes 22d may have a certain length in the axial direction of the stirring shaft 21, and when the stirring shaft 21 rotates around the axis F thereof, the cooling pipes 22d may effectively stir the material, the fluidity of the material in the mixing chamber Q is better, the contact between the material and the stirring mechanism 20 and the chamber walls of the mixing chamber Q is more sufficient, and the cooling effect and the cooling efficiency of the cooling device 100 are improved.

The peripheral wall of the stirring shaft 21 is provided with a hole connected to the outlet port O and the inlet port I, and the hole communicates the outlet port O with the medium outflow path J2 or communicates the inlet port I with the medium inflow path J1.

In some embodiments, referring to fig. 3 to 6, the stirring shaft 21 includes a butt end 21c, the butt end 21c is located at one axial end of the stirring shaft 21, the medium outflow channel J2 and the medium inflow channel J1 each penetrate through the butt end 21c, and one of the two is disposed around the periphery of the other around the axial direction of the stirring shaft 21.

The butt end 21c is an end of the stirring shaft 21 for connection to a delivery port communicating with a medium source. The medium outflow channel J2 and the medium inflow channel J1 extend through the butt end 21c, that is, the cooling medium flows into and out of the stirring shaft 21 from the same end of the stirring shaft 21, so that the structural scheme for realizing the communication between the stirring shaft 21 and the medium source can be simplified.

As can be appreciated from a combination of fig. 4 and 6, the stirring shaft 21 has a cavity penetrating the abutting end 21c in its axial direction (one end of a first cavity is open at the abutting end 21c and the other end is closed), and the first cavity may form one of the medium inflow passage J1 and the medium outflow passage J2. The stirring shaft 21 further has an annular chamber penetrating through the butt end 21c in its axial direction (one end of the annular chamber is open at the butt end 21c and the other end is closed), which is provided around the cavity, and may form the other of the medium inflow passage J1 and the medium outflow passage J2.

When the medium outflow channel J2 and the medium inflow channel J1 are annularly disposed, both the medium outflow channel J2 and the medium inflow channel J1 can form a circulation of the cooling medium with the plurality of sets of cooling pipes 22d disposed around the axis F of the stirring shaft 21, so that more cooling pipes 22d are more advantageously disposed, and the cooling effect and the cooling efficiency of the cooling device 100 are improved.

In some embodiments, referring to fig. 2, the cooling tank 10 includes an inner wall 11 and an outer wall 12, the inner wall 11 is surrounded by a mixing cavity Q, the outer wall 12 is surrounded by the outer wall 11 and forms a first space K1 with the inner wall 11, and a medium inlet 12a and a medium outlet 12b communicating with the first space K1 are disposed on the outer wall 12.

The inner wall 11 and the outer wall 12 may be made of the same material, such as aluminum alloy, stainless steel, etc. A connection structure may be provided between the outer wall body 12 and the inner wall body 11. The inner wall body 11 and the outer wall body 12 can form great first space K1 at intervals, and first space K1 is better to the parcel nature of compounding chamber Q, and the chamber wall cooling of compounding chamber Q is more even, and then can make cooling medium more even to the material cooling.

The medium inlet 12a and the medium outlet 12b may be arranged offset in the height direction of the cooling tank 10. Illustratively, the medium inlet 12a is located below the medium outlet 12b, so that the cooling medium flowing into the first space K1 is easily filled, and the flow rate can become slower, and the utilization rate of the cooling medium can be improved. Of course, in other embodiments, the medium inlet 12a and the medium outlet 12b may be both disposed at the same position higher in the cooling tank 10.

In other embodiments, the cooling device 100 further includes support feet 40, and the outer wall body 12 is supported on the support feet 40. The support feet 40 may be configured with a plurality of support feet.

In some embodiments, the scraping member 30 includes a connecting section 32 and a scraping section 31, the connecting section 32 is disposed on the stirring mechanism 20, and the scraping section 31 is disposed on the connecting section 32 for scraping the material on the cavity wall of the mixing cavity Q.

The connecting section 32 may be made of a harder material, such as metal, ceramic, hard plastic, etc., to effectively support the wall scraping section 31 and improve the wall scraping effect. The scraping wall section 31 may be made of soft materials, such as soft plastic, rubber, silica gel, etc., so as to reduce abrasion to the cavity wall of the mixing cavity Q.

The scraping wall section 31 can be abutted against the cavity wall of the mixing cavity Q, or a certain gap can exist, so long as scraping of at least part of materials on the cavity wall of the mixing cavity can be realized.

Fig. 8 is a schematic diagram of a combination of a wall scraper 30 and a stirring mechanism 20 according to one or more embodiments.

In the embodiment, referring to fig. 8, the scraping section 31 extends away from the connecting section 32 toward the cavity wall of the mixing cavity Q, and the extending direction of the scraping section 31 is set at an angle α with respect to the tangential plane of the cavity wall of the mixing cavity Q, where α is less than or equal to 90 °.

One end of the scraping wall section 31 is connected to the connecting section 32, and the other end extends towards the cavity wall of the mixing cavity Q. In the embodiment shown in fig. 8, the direction of extension of the scraper wall section 31 is indicated by the reference f and the tangential plane of the chamber wall of the mixing chamber Q is indicated by the reference Q. It will be appreciated that the tangential plane here is the tangential plane of the cavity wall in the direction of extension of the scraper wall section 31. Typically the tangential plane to the portion of the chamber wall in contact with the wiper segment 31.

Typically, the angle α is greater than 0. The angle α may be greater than 20 ° and less than 90 °. Specifically, the angle α may be selected to be 30 °, 45 °, 55 °, 65 °, 75 °, 90 ° and any value between adjacent selected values.

When the angle alpha is within the above range, the scraping effect of the scraping section 31 is better, and the scraping of the material is cleaner.

It should be noted that the extending direction of the scraping section 31 should be the same rotation direction of the stirring mechanism 20. Referring to fig. 8, the extending direction (reference f) of the scraper section 31 and the rotating direction (reference r) of the stirring mechanism 20 each correspond to a clockwise rotation direction. The angle α is then a right or acute angle to the direction of extension and the tangential plane.

In the embodiment, referring to fig. 3, the scraping section 31 includes a plurality of scraping sections 31, and the plurality of scraping sections 31 are staggered in the axial direction of the stirring mechanism 20.

The axial direction of the stirring mechanism 20 is the direction in which the axis F is located. In particular, the connecting sections 32 may comprise a plurality of connecting sections 32, each connecting section 32 being provided with a scraping section 31, in which case the respective connecting section 32 may be arranged about the axis F of the stirring shaft 21. It is also possible to provide a plurality of scraper segments 31 on each connecting segment 32.

The wall scraping sections 31 are arranged offset in the axial direction of the stirring mechanism 20, which means that the orthographic projection of all wall scraping sections 31 on the axis F of the stirring mechanism 20 is offset. So, a plurality of wall sections 31 can scrape the material in the subregion in the direction of height of cooling device 100 to the chamber wall of compounding chamber Q to as far as possible make the material of compounding chamber Q everywhere all can be scraped, be favorable to improving the cooling effect of material, shorten the cooling time of material, improve cooling device 100's cooling efficiency.

In some embodiments, referring to fig. 1 and 2, the cooling tank 10 includes a material inlet W1 and a material outlet W2, and both the material inlet W1 and the material outlet W2 are in communication with the mixing chamber Q. The material inlet W1 is located below the material outlet W2. That is, in the height direction of the cooling device 100, the material inlet W1 is located at a lower position and the material outlet W2 is located at an upper position. So, after the material gets into through material entry W1 entering compounding intracavity Q, can prolong the time of staying in compounding intracavity Q under the action of gravity, can improve the cooling effect of material.

Of course, in other embodiments, the material inlet W1 and the material outlet W2 may be at the same level, or the material outlet W2 is lower than the material inlet W1.

The cooling device 100 provided by an embodiment of the present application includes a cooling tank 10, a stirring mechanism 20 and a wall scraping member 30, where the cooling tank 10 includes an inner wall body 11 and an outer wall body 12, the inner wall body 11 encloses a mixing cavity Q, the outer wall body 12 encloses the periphery of the inner wall body 11 and forms a first space K1 with the inner wall body 11 at intervals, and a medium inlet 12a and a medium outlet 12b which are communicated with the first space K1 are provided on the outer wall body 12; the stirring mechanism 20 comprises a stirring shaft 21 and a stirring part 22, wherein the stirring shaft 21 is rotatably arranged on the cooling tank 10, and the stirring part 22 is positioned on the stirring shaft 21 and in the mixing tank. The stirring shaft 21 is formed with an annular medium inflow channel J1 and a medium outflow channel J2 surrounded by the medium inflow channel J1, the medium inflow channel J1 and the medium outflow channel J2 penetrating the same end of the stirring shaft 21, and the stirring section 22 includes a plurality of sets of cooling pipes 22d, the plurality of sets of cooling pipes 22d being arranged at intervals around the axial direction of the stirring shaft 21, each set of cooling pipes 22d being communicated between the medium inflow channel J1 and the medium outflow channel J2. The scraper 30 is arranged on the stirring shaft 21 and can rotate along with the stirring shaft 21. The scraping element 30 scrapes off material adhering to the walls of the mixing chamber Q when rotated.

When the material enters the mixing chamber Q, the cooling medium enters the first space K1, and also enters the medium inflow channel J1, the cooling pipe 22d and the medium outflow channel J2, and the cooling medium is doubly cooled by the stirring mechanism 20 and the chamber walls of the mixing chamber Q. Moreover, the scraping wall member 30 can scrape off the material adhered/frozen on the wall of the mixing cavity Q, thereby improving the cooling efficiency of the mixing cavity Q, shortening the material cooling time and improving the cooling efficiency of the cooling device 100.

In addition, the embodiment of the application also provides a battery production system, which comprises the cooling device 100 in any embodiment. The cooling device 100 may be disposed on a transport path of the electrode paste that has been prepared, and may also be used for the preparation of the electrode paste.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims (10)

1. A cooling device (100), characterized in that the cooling device (100) comprises:

-a cooling tank (10) comprising a mixing chamber (Q) and a first space (K1), said first space (K1) being arranged around said mixing chamber (Q) and being adapted to be circulated by a cooling medium;

The stirring mechanism (20) is rotatably arranged on the cooling tank (10), and a second space (K2) for cooling medium circulation is formed in the part of the stirring mechanism (20) positioned in the mixing cavity (Q); and

The scraping wall piece (30) is positioned in the mixing cavity (Q) and is arranged on the stirring mechanism (20); the scraping wall piece (30) can scrape materials on the cavity wall of the mixing cavity (Q) in the process of following the rotation of the stirring mechanism (20).

2. The cooling device (100) according to claim 1, wherein the stirring mechanism (20) includes a stirring shaft (21) and a stirring portion (22), the stirring portion (22) being provided on a peripheral wall of the stirring shaft (21); the stirring shaft (21) is rotatably arranged in the cooling tank (10), and all stirring parts (22) are positioned in the mixing cavity (Q);

The stirring shaft (21) and/or the stirring part (22) are/is internally provided with the second space (K2).

3. The cooling device (100) according to claim 2, wherein the stirring shaft (21) comprises a medium inflow channel (J1) and a medium outflow channel (J2) forming the second space (K2) itself;

The stirring part (22) comprises at least one group of cooling pipelines (22 d), the second space (K2) is formed inside each group of cooling pipelines (22 d), and each group of cooling pipelines (22 d) is communicated between the medium inflow channel (J1) and the medium outflow channel (J2).

4. A cooling device (100) according to claim 3, wherein each set of said cooling ducts (22 d) comprises a plurality of first ducts (d 1), each of said first ducts (d 1) of a same set being in parallel communication with each other between said medium inflow channel (J1) and said medium outflow channel (J2).

5. A cooling device (100) according to claim 3, wherein each set of cooling ducts (22 d) comprises a plurality of second ducts (d 2), each of the second ducts (d 2) of a same set being connected in series and being in common communication between the medium inflow channel (J1) and the medium outflow channel (J2).

6. A cooling device (100) according to claim 3, wherein each set of the cooling pipes (22 d) includes an inlet end (I) communicating with a medium inflow channel (J1) and an outlet end (O) communicating with the medium outflow channel (J2), the inlet ends (I) and the outlet ends (O) being arranged at intervals in the axial direction of the stirring shaft (21).

7. A cooling device (100) according to claim 3, wherein the stirring shaft (21) comprises a butt end (21 c), the butt end (21 c) being located at an axial end of the stirring shaft (21);

the medium outflow channel (J2) and the medium inflow channel (J1) each penetrate through the butt end (21 c), and one of the two is disposed around the periphery of the other axially surrounding the stirring shaft (21).

8. The cooling device (100) according to claim 1, wherein the scraper (30) comprises a connecting section (32) and a scraper section (31), the connecting section (32) being arranged to the stirring mechanism (20); the scraping wall section (31) is arranged on the connecting section (32) and is used for scraping materials on the cavity wall of the mixing cavity (Q);

Wherein the scraping wall section (31) extends away from the connecting section (32) towards the cavity wall of the mixing cavity (Q), and the extending direction of the scraping wall section (31) and the tangential plane of the cavity wall of the mixing cavity (Q) are arranged at an angle alpha which is less than or equal to 90 degrees; and/or the scraping wall section (31) comprises a plurality of scraping wall sections (31) which are staggered in the axial direction of the stirring mechanism (20).

9. The cooling device (100) according to claim 1, wherein the cooling tank (10) comprises a material inlet (W1) and a material outlet (W2), both the material inlet (W1) and the material outlet (W2) being in communication with the mixing chamber (Q);

the material inlet (W1) is located below the material outlet (W2).

10. A battery production system, characterized by comprising a cooling device (100) according to any one of claims 1 to 9.