Slurry coating equipment

Abstract

The utility model provides slurry coating equipment which comprises a slurry tank provided with a storage cavity used for storing slurry; the scraper is provided with a material containing cavity for receiving the slurry in the slurry tank; the cooling structure is connected to the peripheral face of the slurry tank, and the refrigeration structure is connected with the cooling structure and used for supplying a cooling medium to the cooling structure so as to adjust the temperature in the slurry tank. According to the technical scheme, the cooling structure is arranged on the peripheral surface of the slurry tank, and the slurry tank is cooled by supplying the cooling medium to the cooling structure, so that the slurry in the storage cavity is cooled, the problem that the temperature of the slurry rises along with the prolonging of the service time to cause deterioration of the slurry is avoided, the service life of the slurry is prolonged, and the service life of the slurry is prolonged. The waste problem is reduced; the slurry can be normally used for a long time, namely the processing process is smoothly carried out, and the situation that the normal production is influenced by cleaning the deteriorated slurry in the midway is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a slurry coating device. Background Art

[0002] Laser transfer is an important processing technology in the production process of photovoltaic cells, such as the metallization process of photovoltaic heterojunction cells (HJT). Since the previous process cannot pass high temperature, laser transfer is used to achieve the metallization of HJT cells. First, the slurry is filled into the grooves on the surface of the flexible film, and then the slurry filled in the grooves is transferred to the cell through laser scanning.

[0003] Due to the special properties of HJT slurry itself, it needs to be stored in a low temperature environment (-10℃~5℃); during the transfer process, the slurry is thawed and transported to a storage tank, which is connected to a scraper. The slurry is transported from the storage tank to the scraper, and then filled into the grooves of the film by the scraper.

[0004] During the process of filling the slurry into the slots of the film by the scraper, the slurry is always kept in the storage tank. Since the temperature of the production environment is higher than the range of -10℃ to 5℃, the temperature of the slurry will gradually increase. If the slurry in the storage tank is consumed slowly, the slurry temperature will increase and deteriorate, and it will not be able to be used normally. Utility Model Content

[0005] The present application provides a slurry coating device, which can avoid the problem of slurry deteriorating and being unable to be used normally due to temperature increase during the production process, extend the service life of the slurry, and reduce waste.

[0006] The present application provides a slurry coating device, comprising:

[0007] A slurry tank, provided with a storage cavity for storing slurry;

[0008] A scraper, provided with a material holding cavity for receiving the slurry in the slurry tank;

[0009] A cooling structure is connected to the outer peripheral surface of the slurry tank.

[0010] A refrigeration structure is connected to the cooling structure and is used to supply a cooling medium to the cooling structure to adjust the temperature in the slurry tank.

[0011] In the above technical scheme, a cooling structure is arranged on the outer peripheral surface of the slurry tank, and the slurry tank is cooled by supplying cooling medium to the cooling structure, so as to realize cooling of the slurry in the storage chamber, thereby avoiding the problem that the temperature of the slurry increases with the extension of the use time, thereby causing the slurry to deteriorate, extending the service life of the slurry, and reducing waste; ensuring that the slurry can be used normally for a long time, that is, the processing process proceeds smoothly, and reducing the need to clean up the deteriorated slurry in the middle and affect normal production.

[0012] In a specific possible implementation manner, the cooling structure comprises a protective shell, and the protective shell is fixedly connected to the slurry tank;

[0013] A cooling chamber for storing a cooling medium is formed between the protective shell and the slurry tank;

[0014] The refrigeration structure is communicated with the interior of the cooling cavity.

[0015] In the above technical scheme, a cooling chamber is set up to store the cooling medium, and the cooling medium is wrapped around the outer periphery of the slurry tank, which has a good cooling zone effect on the slurry in the storage chamber; the direct contact between the side wall of the slurry tank and the external environment is reduced, that is, the phenomenon of slurry rising caused by heat exchange with the external environment is reduced, which is more conducive to keeping the slurry in the storage chamber in a low temperature environment.

[0016] In a specific embodiment, it further comprises a capillary;

[0017] At least the discharge end of the refrigeration structure is connected to the interior of the cooling cavity through the capillary tube.

[0018] In the above technical solution, the use of a capillary tube can keep the cooling medium passing into the cooling chamber through the refrigeration structure at a higher pressure state. There is a large pressure drop when the capillary tube enters the cooling chamber, the evaporation temperature of the cooling medium is reduced, and it has a higher heat absorption capacity, which is beneficial to improving the refrigeration and cooling effect of the slurry in the slurry tank.

[0019] In a specific embodiment, it further includes a feeding structure communicated with the storage cavity;

[0020] The feeding structure is used to introduce gas into the storage cavity to squeeze the slurry in the storage cavity into the material holding cavity.

[0021] In the above technical solution, the slurry is transported by forming a high pressure, which can improve the smoothness and continuity of the slurry transportation process, reduce the problem of uneven flow rate of slurry transportation, and at the same time, reduce the bubbles in the slurry.

[0022] In a specific embodiment, it also includes a temperature sensor and a controller;

[0023] The temperature sensor is arranged in the storage cavity and is used to detect the temperature of the slurry;

[0024] The controller is connected to the temperature sensor and the refrigeration structure signal, and when the temperature value detected by the temperature sensor exceeds a set range, the controller adjusts the power of the refrigeration structure to adjust the slurry temperature to within the set range.

[0025] In the above technical scheme, the temperature of the slurry can be obtained more conveniently, and the cooling process of the slurry can be automatically controlled according to the detected slurry temperature, thereby improving the overall convenience of the slurry coating equipment and reducing the risk of slurry deterioration caused by the slurry temperature rising but not cooling down in time. There is no need to introduce cooling medium when the slurry temperature is maintained in a low temperature environment, thereby reducing the problem of energy waste.

[0026] In a specific possible implementation manner, the protective shell is thermally connected to the scraper.

[0027] In the above technical solution, the protective shell is in direct contact with the cooling medium, and a thermal connection is provided between the protective shell and the scraper to realize heat exchange between the cooling chamber and the material holding chamber, that is, the cooling medium also has a certain cooling effect on the slurry in the material holding chamber, thereby reducing the risk of deterioration of the slurry in the material holding chamber due to increased temperature.

[0028] In a specific embodiment, a transfer tube is further included, the transfer tube is made of a heat-conducting material, one end of the transfer tube is connected to the material storage cavity, and the other end is connected to the material holding cavity;

[0029] One end of the transfer tube connected to the slurry tank is inserted into the cooling cavity.

[0030] In the above technical solution, one end of the transfer tube is inserted into the cooling cavity and directly contacts with the cooling medium, which can further enhance the cooling effect of the cooling medium on the slurry in the material holding cavity.

[0031] In a specific possible implementation manner, it further includes a circulation structure, which is communicated with the interior of the material holding chamber and is used to drive the slurry to flow relative to the scraper.

[0032] In the above technical solution, the circulation structure drives the slurry to flow relative to the scraper in the material holding chamber, which can improve the smoothness of the slurry discharged from the material holding chamber, reduce the uneven flow of the slurry discharged from the material holding chamber, and cause the slurry filled in the grooves on the film substrate to have breakpoints or depressions. The uniformity of the slurry coating is improved, and the quality of the battery cells produced in subsequent processing is better.

[0033] In a specific possible implementation manner, the circulation structure is located outside the material holding chamber, one end of the circulation structure is connected to the first end of the material holding chamber, and the other end of the circulation structure is connected to the second end of the material holding chamber;

[0034] The first end and the second end are two ends of the material holding cavity that are far away from each other.

[0035] In the above technical solution, a circulation structure is set outside the material holding chamber, and the slurry circulation process is carried out in the material holding chamber and outside the material holding chamber. Compared with the situation where the slurry only circulates inside the material holding chamber, it can reduce the problem of slurry vibration in the material holding chamber and affecting the smoothness of material storage.

[0036] In a specific implementation scheme, a three-way valve is fixedly connected to the scraper;

[0037] The first interface of the three-way valve is communicated with the material holding chamber, the second interface is communicated with the slurry tank, and the third interface is communicated with one end of the circulation structure.

[0038] In the above technical solution, the connection structure on the scraper is simplified; in the process of the circulation structure driving the slurry to circulate, the slurry flows through the three-way valve, and the three-way valve is connected to the slurry tank, which can produce a certain cooling effect on the slurry flowing through the three-way valve.

[0039] In a specific embodiment, it further includes a stirring structure, wherein the stirring structure includes a stirring blade located in the storage cavity and rotatably connected to the slurry tank, and a driving member fixedly connected to the slurry tank;

[0040] The output end of the driving member is connected to the stirring blade, driving the stirring blade to rotate relative to the slurry tank.

[0041] In the above technical solution, the stirring structure drives the slurry in the storage chamber to be in a dynamic state, avoiding the situation where the cooling medium has a higher cooling effect on the slurry close to the side wall of the slurry tank when the slurry is static. The temperature of this part of the slurry is lower than that of the internal slurry, which improves the uniformity of the slurry temperature and is beneficial to maintaining the stability of the quality of the slurry and the produced battery cells. In addition, by stirring the slurry, the bubbles in the slurry can also escape, reducing the bubbles in the slurry and improving the quality of the produced battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram of a slurry coating device provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of signal connections for the temperature sensor, controller, and refrigeration structure provided in an embodiment of the present application.

[0044] Explanation of the accompanying drawings: 1. slurry tank; 11. storage chamber; 12. transfer tube; 2. scraper; 21. material chamber; 22. connecting valve; 3. cooling structure; 31. protective shell; 32. cooling chamber; 4. refrigeration structure; 41. compressor; 42. condenser; 5. capillary tube; 6. feeding structure; 61. high-pressure gas source; 62. air inlet pipe; 7. stirring structure; 71. stirring blade; 72. driving member; 8. temperature sensor; 81. controller; 9. circulation structure; 91. circulation pump; 92. circulation pipeline. DETAILED DESCRIPTION

[0045] The present application is further described in detail below through the accompanying drawings and embodiments. Through these descriptions, the characteristics and advantages of the present application will become clearer and more specific.

[0046] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise noted.

[0047] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0048] To facilitate understanding of the slurry coating equipment provided in the embodiment of the present application, the slurry coating equipment is first briefly described. The slurry coating equipment is used in the photovoltaic cell laser transfer production process to coat the slurry into the grooves on the film carrier; the slurry coating equipment includes a placement table, a slurry tank and a scraper. The slurry tank is used to store the thawed slurry. A cavity is provided in the scraper, and the slurry is transported from the slurry tank to the cavity in the scraper; the film carrier is located on the placement table, and the slurry is transported to the film carrier by the scraper. At the same time, the scraper moves relative to the placement table to flatten the slurry so that the slurry is filled in the grooves on the film carrier. The way the scraper moves relative to the placement table and the way the slurry is discharged from the cavity in the scraper are well known to those skilled in the art and will not be described in detail.

[0049] The slurry used for laser transfer of HJT batteries needs to be stored in a low temperature environment (-10℃~5℃). The thawed slurry is stored in a slurry tank. If the slurry in the slurry tank is used slowly, the temperature of the slurry will gradually rise (until it reaches room temperature) as the storage time in the slurry tank increases. As the temperature of the slurry rises and exceeds the specified range, it will deteriorate and cannot be used normally, which will cause serious waste and affect the normal production process.

[0050] The present application provides a slurry coating device, which avoids the problem of slurry deterioration due to continuous increase in temperature during laser transfer, reduces material waste, and also avoids the normal production process being affected by factors such as cleaning and replacement due to slurry deterioration. The following is a detailed description of the device in conjunction with specific drawings and embodiments.

[0051] refer to Figure 1 , Figure 1 The schematic diagram of the structure of the slurry coating equipment provided by the embodiment of the present application is shown. The slurry coating equipment provided by the embodiment of the present application includes a slurry tank 1, a scraper 2, a cooling structure 3 and a refrigeration structure 4, and also includes a placement table for carrying a film carrier. Among them, a storage chamber 11 for storing slurry is provided inside the slurry tank 1, and the slurry is thawed and stored in the slurry tank 1; the scraper 2 slides relatively with the placement table, and a material storage chamber 21 is provided inside the scraper 2 for receiving the slurry in the slurry tank 1, and the slurry is coated on the film carrier by the scraper 2, so that the slurry is filled in the groove on the film carrier. The cooling structure 3 is connected to the outer peripheral surface of the slurry tank 1, and is connected to the refrigeration structure 4. The cooling medium is transported to the cooling structure 3 through the refrigeration structure 4, and the cooling medium adjusts the temperature in the slurry tank 1, and cools the slurry tank 1 and its interior.

[0052] The specific structure of the scraper 2 and its sliding structure relative to the placement table are both structures commonly used in existing equipment in the field, and this part of the content will not be repeated in the embodiments of the present application.

[0053] After the slurry is thawed, it is temporarily stored in the slurry tank 1, and the ambient temperature of the slurry tank 1 is room temperature. If it is not cooled down, as the storage time increases, the temperature of the slurry will gradually rise towards room temperature. The temperature rise will cause the slurry to deteriorate and cannot be used normally. In addition, the deteriorated slurry needs to be cleaned and replaced with new slurry for coating and transfer processes. This will not only cause waste of materials, but also delay time and reduce production efficiency.

[0054] By means of the cooling structure 3 and the refrigeration structure 4, the slurry tank 1 for temporarily storing the slurry is cooled, thereby preventing the internal slurry temperature from increasing with the extension of the storage time, so that the slurry can maintain its own properties for a long time without deterioration, thereby reducing the requirements for the use environment, extending the service life of the slurry, and reducing the problem of waste caused by slurry deterioration; the need to clean up the deteriorated slurry and replace it with new slurry is reduced, thereby reducing the impact on production efficiency.

[0055] refer to Figure 1The cooling structure 3 includes a protective shell 31, which is fixedly connected to the slurry tank 1. The protective shell 31 is wrapped around the outside of the slurry tank 1, and a cooling chamber 32 for storing cooling medium is formed between the protective shell 31 and the slurry tank 1; the refrigeration structure 4 is connected to the inside of the cooling chamber 32, so that the cooling medium reciprocates between the cooling chamber 32 and the refrigeration structure 4 to form a cycle. The cooling medium absorbs heat in the cooling chamber 32, and the temperature rises, and then circulates to the refrigeration structure 4, where the cooling medium releases heat. After releasing heat, it is transported to the cooling chamber 32 again to cool the slurry tank 1 and the slurry inside it.

[0056] The cooling chamber 32 is wrapped around the outside of the slurry tank 1, and the contact area with the side wall of the slurry tank 1 is increased as much as possible to increase the heat exchange efficiency between the cooling medium and the slurry, thereby achieving a better cooling effect on the slurry.

[0057] In another embodiment, the cooling structure 3 also includes a heat insulation layer, which is included on the outer surface of the protective shell 31 and can inhibit heat exchange between the cooling medium and the external environment, so that the cooling medium has a better cooling effect on the inner slurry tank 1 and the slurry.

[0058] Exemplarily, the refrigeration structure 4 includes a compressor 41 and a condenser 42. The feed end of the compressor 41 and the discharge end of the condenser 42 are connected to the inside of the cooling chamber 32, and the discharge end of the compressor 41 is connected to the feed end of the condenser 42. The cooling medium discharged from the cooling chamber 32 flows through the compressor 41 and the condenser 42 in sequence, and then is transported back to the cooling chamber 32. The refrigeration structure 4 is a conventional structure used in the relevant field to cool down a specific object. In the embodiment of the present application, only the structure of the compressor 41 connected to the condenser 42 is used as an example for explanation. In actual use, different types of refrigeration structures 4 can be selected according to actual needs.

[0059] In addition, reference Figure 1 The slurry coating equipment also includes a capillary 5. At least the discharge end of the refrigeration structure 4 (i.e., the discharge end of the condenser 42) is connected to the interior of the cooling chamber 32 through the capillary 5. The cooling medium after being treated with heat release by the refrigeration structure 4 is transported to the cooling chamber 32 through the capillary 5.

[0060] The use of the capillary tube 5 can keep the cooling medium entering the cooling chamber 32 through the refrigeration structure 4 at a relatively high pressure state. There is a large pressure drop when the capillary tube 5 enters the cooling chamber 32, and the evaporation temperature of the cooling medium is reduced, which has a higher heat absorption capacity, and is beneficial to improving the refrigeration and cooling effect of the slurry in the slurry tank 1.

[0061] The selection of the capillary tube 5 is only an optional factual solution. In actual use, the capillary tube 5 can also be replaced by pipes of other sizes according to actual needs.

[0062] In addition, reference Figure 1 The slurry coating device further includes a feeding structure 6 connected to the storage chamber 11, and the feeding structure 6 is used to introduce gas into the storage chamber 11, and squeeze the slurry in the storage chamber 11 into the material holding chamber 21. Exemplarily, the feeding structure 6 includes a high-pressure gas source 61 and an air inlet pipe 62, and the high-pressure gas source 61 is connected to the storage chamber 11 through the air inlet pipe 62, and gas is introduced into the storage chamber 11.

[0063] By forming a high-pressure environment in the slurry tank 1 and squeezing the slurry into the material storage chamber 21, the phenomenon of bubbles in the slurry can be reduced; if there are many bubbles in the slurry, it is difficult to ensure the uniformity of the slurry distribution during the process of the slurry being discharged from the scraper 2 to the film carrier and filled in the grooves on the film carrier, the transfer effect is poor, and the quality of the processed battery cells is also poor. By adopting the method of introducing gas into the storage chamber 11 to form high-pressure extrusion, the bubbles in the slurry are reduced, the uniformity of subsequent slurry coating is improved, and the quality of the processed battery cells is also better.

[0064] The protective shell 31 is thermally connected to the scraper 2. While the slurry tank 1 and the slurry inside it are cooled by the refrigeration structure 4, the heat of the scraper 2 can be absorbed by the cooling medium, and the slurry in the cavity of the scraper 2 can also be cooled to a certain extent. The risk of deterioration of the slurry due to temperature increase is further reduced.

[0065] Exemplarily, the slurry tank 1 is connected with a transfer tube 12, which is made of heat-conducting material, one end of which is connected to the material storage chamber 11, and the other end of which is connected to the material holding chamber 21; the end of the transfer tube 12 connected to the slurry tank 1 is inserted into the cooling chamber 32. The scraper 2 is fixedly connected with a connecting valve 22, which is also made of heat-conducting material. The connecting valve 22 is connected to the inside of the material holding chamber 21, and the transfer tube 12 is fixedly connected to the connecting valve 22 to achieve communication with the material holding chamber 21.

[0066] By means of the transfer tube 12 and the connecting valve 22, a direct connection between the slurry tank 1 and the scraper 2 is achieved, and the end of the transfer tube 12 is inserted into the cooling chamber 32 to directly contact the cooling medium therein; compared with the method of connecting using a longer pipe, the scraper 2 and the cooling medium have a higher heat exchange efficiency, and the slurry in the scraper 2 also has a better cooling effect.

[0067] In addition, the slurry coating device further includes a stirring structure 7, which includes a stirring blade 71 located in the storage chamber 11 and rotatably connected to the slurry tank 1, and a driving member 72 fixedly connected to the slurry tank 1, wherein the output end of the driving member 72 is fixedly connected to the stirring blade 71, driving the stirring blade 71 to rotate relative to the slurry tank 1. Exemplarily, the driving member 72 is a motor, which is fixed outside the slurry tank 1 to avoid occupying the space in the storage chamber 11.

[0068] During the production process, the cooling medium in the cooling chamber 32 continuously cools the slurry in the storage chamber 11. However, under normal conditions, the slurry remains stationary in the storage chamber 11, and the cooling medium only has a good cooling effect on the slurry in the storage chamber 11 near the side wall of the slurry tank 1. In the present application, a stirring structure 7 is provided to stir the slurry, so that the slurry is in a moving state in the storage chamber 11, that is, it can have a good cooling effect on all the slurries; so that the temperature of the slurry therein is kept uniform, avoiding adverse effects on the quality of the slurry itself or the subsequent coating quality due to the existence of temperature differences, improving the coating quality, and the quality of the battery cells produced in the subsequent processing is also better.

[0069] In addition, by stirring the slurry, bubbles that may exist in the slurry can be discharged, thereby reducing the problem of bubbles in the slurry.

[0070] At the same time, in order to better monitor the temperature of the slurry and control the cooling process of the slurry, refer to Figure 2 The slurry coating equipment also includes a temperature sensor 8 and a controller 81. The temperature sensor 8 is arranged in the storage chamber 11 to detect the temperature of the slurry therein; the controller 81 is connected to the temperature sensor 8 and the refrigeration structure 4 by signal. When the temperature detected by the temperature sensor 8 exceeds the set range value, the power of the refrigeration structure 4 is adjusted to adjust the temperature of the slurry to within the set range value.

[0071] In actual setting, the temperature sensor 8 is fixed on the inner wall of the slurry tank 1. In order to ensure the accuracy of the detection result, multiple temperature sensors 8 can be arranged in different positions to reduce the risk of error in the detection result.

[0072] The setting range is the temperature suitable for the slurry itself to be stored, such as -10°C to 5°C listed in this application; of course, when different slurries are used, the corresponding temperature ranges also vary to a certain extent. In actual use, the corresponding temperature setting range can be set according to the actual situation. For different slurries, the corresponding temperature setting ranges are common knowledge of those skilled in the art and are no longer limited one by one.

[0073] In the initial stage of the production process, since the slurry has just been thawed, there is no need to cool the slurry. As time goes on, the temperature of the slurry rises; the temperature sensor 8 monitors the slurry temperature. After detecting that the temperature exceeds the set range, the refrigeration structure 4 is controlled to start introducing cooling medium into the cooling chamber 32 to cool the slurry.

[0074] In the cooling state, if the slurry temperature is still rising and remains above the set range or close to the upper limit of the set range, the controller 81 controls the refrigeration structure 4 to increase the power and enhance the refrigeration capacity.

[0075] Of course, in order to ensure the stability of the refrigeration effect, in actual use, the upper limit of the setting range is lower than the upper limit of the temperature at which the slurry itself is suitable for preservation; in this way, refrigeration is ensured before the slurry deteriorates, avoiding cooling treatment when the slurry has partially deteriorated.

[0076] refer to Figure 1 The slurry coating device also includes a circulation structure 9, which is connected to the interior of the material holding chamber 21 and is used to drive the slurry to flow relative to the scraper 2.

[0077] During the process of coating the slurry from the material holding chamber 21 onto the film carrier, the slurry is discharged from the material holding chamber 21. If the slurry is left stationary in the material holding chamber 21, the slurry discharge may not be smooth, or there may be bubbles or intermittent discharge of the slurry, which may cause the slurry filled into the slot on the film carrier to have breakpoints, depressions, and other problems. The circulation structure 9 is provided to drive the slurry to flow relative to the scraper 2, so that the smoothness and stability of the slurry discharge from the material holding chamber 21 can be improved.

[0078] The circulation structure 9 is located outside the material holding chamber 21, one end of which is connected to the first end of the material holding chamber 21, and the other end of which is connected to the second end of the material holding chamber 21, wherein the first end and the second end are two ends of the material holding chamber 21 that are far away from each other. Exemplarily, the circulation structure 9 includes a circulation pump 91 and a circulation pipe 92, wherein the feed end and the discharge end of the circulation pump 91 are respectively connected to the first end and the second end of the material holding chamber 21 through the circulation pipe 92, so that the slurry forms a complete circulation between the material holding chamber 21 and the circulation pump 91.

[0079] In order to simplify the connection structure on the scraper 2, the connecting valve 22 is set as a three-way valve, the first interface of the three-way valve is connected to the material holding chamber 21, the second interface is connected to the slurry tank 1 (i.e., the transfer tube 12), and the third interface is connected to one end of the circulation structure 9 (i.e., one of the circulation pipes 92).

[0080] While simplifying the connection structure on the scraper 2, the circulation structure 9 drives the circulation of the slurry in the material holding chamber 21. The slurry flows through the three-way valve, and the three-way valve is directly connected to the transfer tube 12. When the slurry flows to the position of the three-way valve, it has a higher heat exchange efficiency with the cooling medium through the transfer tube 12, which can further improve the cooling effect of the slurry in the material holding chamber 21; that is, the overall cooling effect of the slurry coating equipment is improved, and the risk of slurry deterioration due to increased temperature is reduced.

[0081] In the description of the present application, it should be noted that the terms "upper", "lower", "inside", "outside", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships in the working state of the present application. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present application.

[0082] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense; in addition, the term "a plurality" in this application refers to two or more. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] The present application has been described above in conjunction with preferred embodiments, but these embodiments are only exemplary and serve only as an illustration. On this basis, various replacements and improvements may be made to the present application, all of which fall within the scope of protection of the present application.

Claims

1. A slurry coating device, characterized in that: include, A slurry tank, provided with a storage cavity for storing slurry; A scraper, provided with a material holding cavity for receiving the slurry in the slurry tank; A cooling structure is connected to the outer peripheral surface of the slurry tank. A refrigeration structure is connected to the cooling structure and is used to supply a cooling medium to the cooling structure to adjust the temperature in the slurry tank.

2. The slurry coating equipment according to claim 1, characterized in that: The cooling structure comprises a protective shell, and the protective shell is fixedly connected to the slurry tank; A cooling chamber for storing a cooling medium is formed between the protective shell and the slurry tank; The refrigeration structure is communicated with the interior of the cooling cavity.

3. The slurry coating equipment according to claim 2, characterized in that: Also included are capillaries; At least the discharge end of the refrigeration structure is connected to the interior of the cooling cavity through the capillary tube.

4. The slurry coating equipment according to claim 1, characterized in that: Also included is a feeding structure communicated with the storage cavity; The feeding structure is used to introduce gas into the storage cavity to squeeze the slurry in the storage cavity into the material holding cavity.

5. The slurry coating equipment according to claim 1, characterized in that: Also includes a temperature sensor and controller; The temperature sensor is arranged in the storage cavity and is used to detect the temperature of the slurry; The controller is connected to the temperature sensor and the refrigeration structure signal, and when the temperature value detected by the temperature sensor exceeds a set range, the controller adjusts the power of the refrigeration structure to adjust the slurry temperature to within the set range.

6. The slurry coating equipment according to claim 2, characterized in that: The protective shell is thermally connected to the scraper.

7. The slurry coating equipment according to claim 6, characterized in that: It also includes a transfer tube, which is made of heat-conducting material, one end of which is connected to the material storage cavity, and the other end of which is connected to the material holding cavity; One end of the transfer tube connected to the slurry tank is inserted into the cooling cavity.

8. The slurry coating equipment according to claim 1, characterized in that: It also includes a circulation structure, which is communicated with the interior of the material holding chamber and is used to drive the slurry to flow relative to the scraper.

9. The slurry coating device according to claim 8, characterized in that: The circulation structure is located outside the material holding cavity, one end of which is connected to the first end of the material holding cavity, and the other end of which is connected to the second end of the material holding cavity; The first end and the second end are two ends of the material holding cavity that are far away from each other.

10. The slurry coating equipment according to claim 9, characterized in that: The scraper is fixedly connected with a three-way valve; The first interface of the three-way valve is communicated with the material holding chamber, the second interface is communicated with the slurry tank, and the third interface is communicated with one end of the circulation structure.

11. The slurry coating equipment according to claim 1, characterized in that: It also includes a stirring structure, which includes a stirring blade located in the storage cavity and rotatably connected to the slurry tank, and a driving member fixedly connected to the slurry tank; The output end of the driving member is connected to the stirring blade, driving the stirring blade to rotate relative to the slurry tank.

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