Coating die head and coating equipment thereof

Abstract

The utility model belongs to the technical field of coating machine equipment, and particularly relates to a coating die head, which comprises a first die head, a second die head and a third die head, the second die head is matched with the first die head in size and is fixedly connected with the first die head; at least one liquid inlet is formed in the top of the second die head, at least one cavity is formed in the second die head, and the cavity is communicated with the liquid inlet; the bottom of the second die head is provided with at least two second half lips, the second half lips correspond to the cavities, the second half lips and the first half lips are matched to form lip openings, and a gap is formed between the inner wall of the second die head and the inner wall of the first die head; by arranging the at least two first half lips and the two second half lips, the at least two lips can be combined, the lips correspond to the battery pieces respectively, and liquid medicine can be sprayed to the different battery pieces; according to the coating machine, the coating efficiency can be improved, coating of multiple groups of battery pieces can be achieved, various kinds of liquid medicine can also be coated on different battery pieces, the number of coating machine devices is reduced, and the cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating machine equipment, and specifically relates to a coating die head and coating equipment thereof. Background Art

[0002] As one of the main equipment for perovskite solar cells, the slit coater is used to coat the surface of the cell with liquid medicine to form a perovskite cell film on the surface of the cell; the coating die is one of the indispensable and important components of the coater. The fluid material inside the coater is squeezed out from the lip on the die and sprayed onto the surface of the cell to form the perovskite film required for production; in the related art, only one lip is set on the perovskite coating die, and only one perovskite cell can be coated at a time, which has low work efficiency and high production cost. When different cells require liquid medicines with different ratios, the coater often needs to be replaced, which increases the cost;

[0003] Therefore, it is necessary to provide a coating die head and coating equipment that can coat multiple battery cells at the same time. Utility Model Content

[0004] The utility model aims to provide a coating die head to solve the technical problems mentioned in the background technology.

[0005] In order to solve the above technical problems, the utility model provides a coating die head, comprising: a first die head, at least two first half lips are arranged at the bottom of the first die head; a second die head, the second die head is adapted to the first die head in size and is detachably connected; at least one liquid inlet is arranged at the top of the second die head, and at least one cavity connected to the liquid inlet is arranged inside the second die head; at least two second half lips are arranged at the bottom of the second die head, and the second half lips are arranged on the s side of the cavity;

[0006] Furthermore, at least one exhaust port is provided on the top of the second die head, and the exhaust port is communicated with the cavity.

[0007] Furthermore, at least one adapter block is fixedly connected to the top of the second die head, and a liquid inlet channel is arranged in the adapter block, wherein one end of the liquid inlet channel is arranged at the bottom of the adapter block and communicates with the liquid inlet, and the other end of the liquid inlet channel is arranged on the side wall of the adapter block and is suitable for connecting to the liquid inlet pipe.

[0008] Furthermore, an exhaust flow channel is provided in the adapter block, wherein one end of the exhaust flow channel is disposed at the bottom of the adapter block and communicates with the exhaust port, and the other end of the exhaust flow channel is disposed on the side wall of the adapter block and is suitable for the exhaust pipe.

[0009] Furthermore, the top of the second die head is provided with a plurality of connection holes, and the top of the adapter block is provided with a plurality of adapter holes adapted to the connection holes.

[0010] Furthermore, a lip avoidance position adapted to the second half lips is provided between the first half lips.

[0011] Furthermore, a gap plate is fixedly arranged between the first die head and the second die head, and a bottom of the gap plate is provided with a plurality of notches corresponding to the lip.

[0012] Furthermore, a gap avoidance position corresponding to the lip avoidance position is provided at the bottom of the gap plate.

[0013] Furthermore, a plurality of gap mounting holes are provided on the side wall of the gap plate, and a fixing hole adapted to the gap mounting holes is provided between the first die head and the second die head.

[0014] Furthermore, the structure of the first die head is the same as that of the second die head.

[0015] Furthermore, a coating device comprises any of the coating die heads described above.

[0016] Beneficial effects of the utility model:

[0017] 1. By setting the first die head and the second die head to be adaptable and detachably connected, the first half lip and the second half lip can be assembled into a lip, and the lip is connected to the cavity to spray liquid to coat the battery cell; by setting at least two first half lips and at least two second half lips, at least two lips can be combined, and the lips correspond to the battery cells respectively, so as to realize spraying liquid medicine on different battery cells or multiple identical battery cells; not only can the coating efficiency be improved and the coating of multiple groups of battery cells can be realized, but also different battery cells can be coated with multiple liquid medicines to meet different work requirements, reduce the number of coating machine equipment or coating die heads, and reduce costs.

[0018] 2. At least one liquid inlet is provided on the top of at least one die head, and the liquid medicine can be introduced into the liquid inlet and transported into the cavity; a gap is provided between the mouth of the cavity and the inner wall of the corresponding die head, and the liquid medicine can be transported from the cavity to the gap and flow to the lip, thereby completing the transportation of the liquid medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the coating die head of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the coating die head of the utility model from a first viewing angle;

[0022] Figure 3 This is a schematic diagram of the internal structure of an embodiment of the coating die head of the utility model from a second viewing angle;

[0023] Figure 4 It is a schematic diagram of the overall structure of another embodiment of the coating die head of the utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of another embodiment of the coating die head of the utility model from a first viewing angle;

[0025] Figure 6 yes Figure 5 A partial enlarged view of the middle A;

[0026] Figure 7 It is a cross-sectional view of the adapter block of the utility model from the left side viewing angle;

[0027] Figure 8 It is a schematic diagram of the internal structure of another embodiment of the coating die head of the utility model from a second viewing angle.

[0028] Fig. 9 It is a schematic diagram of the structure of the coating die head of the utility model when viewed from above.

[0029] In the figure:

[0030] A first die head, 110, a first half lip, 120, a lip;

[0031] second die head, 210, liquid inlet, 220, cavity, 230, second half lip, 240, exhaust port, 250, connecting hole, 260, lip avoidance position, 270, fixing hole;

[0032] 300, adapter block, 310, liquid inlet channel, 320, exhaust channel, 330, adapter hole;

[0033] 400, gap plate, 410, notch, 420, gap avoidance position, 430, gap mounting hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figures 1 to 9 As shown, the utility model provides a coating die head, comprising: a first die head 100, at least two first half lips 110 are arranged at the bottom of which; a second die head 200, the second die head 200 is adapted to the size of the first die head 100 and is fixedly connected; at least one liquid inlet 210 is arranged at the top of the second die head 200, and at least one cavity 220 connected to the liquid inlet 210 is arranged inside the second die head 200; at least two second half lips 230 are arranged at the bottom of the second die head 200, and the second half lips 230 are arranged below the cavity 220; the second half lips 230 are adapted to form a lip 120 with the first half lips 110, and a gap is arranged between the inner wall of the second die head 200 and the inner wall of the first die head 100; by arranging the first die head 100 to be adapted and fixedly connected to the second die head 200, the first half lips 110 and the first half lips 230 are connected to the first half lips 110. The second half lip 230 can be assembled into a lip, which is connected to the cavity 220 and can spray liquid medicine to coat the battery cells; by setting at least two first half lips 110 and two second half lips 230, at least two lips can be combined, and the lips correspond to the battery cells respectively, so as to spray liquid medicine on different battery cells; it can not only improve the coating efficiency and realize the coating of multiple groups of battery cells, but also realize the coating of different battery cells with multiple liquid medicines, so as to meet different work requirements, reduce the number of coating equipment or the number of coating dies, and reduce costs; by setting the second die head 200, at least one liquid inlet 210 is set at the top of the second die head 200, and the liquid inlet 210 can pass the liquid medicine and transport it into the cavity 220; a gap is set between the inner wall of the second die head 200 and the inner wall of the first die head 100, and the liquid medicine can be transported from the cavity 220 to the gap and flow to the lip, so as to complete the transportation of the liquid medicine.

[0036] See also Figure 5 Combined with Figure 6 At least one exhaust port 240 is provided on the top of the second die head 200, and the exhaust port 240 is connected to the cavity 220; by providing the exhaust port 240, when bubbles exist after the cavity 220 is filled with the input liquid, the bubbles are discharged from the exhaust port 240 by pressurizing the liquid supply to the second die head 200 until there are no bubbles in the exhaust port 240, thereby ensuring the quality of the coating liquid.

[0037] See 5 to Figure 7, at least one adapter block 300 is fixedly connected to the top of the second die head 200, and a liquid inlet channel 310 is arranged in the adapter block 300, wherein one end of the liquid inlet channel 310 is arranged at the bottom of the adapter block 300 and communicates with the liquid inlet 210, and the other end of the liquid inlet channel 310 is arranged on the side wall of the adapter block 300 and is suitable for connecting to a liquid inlet pipe (not shown in the figure); by setting the adapter block 300, the liquid inlet channel 310 is connected to the liquid inlet pipe, and the pressure pump (not shown in the figure) conveys the coating liquid into the liquid inlet pipe by pressurizing the coating liquid, and the liquid inlet pipe conveys the coating liquid into the liquid inlet channel 310 and finally conveys it into the cavity 220.

[0038] See 5 to Figure 7 , an exhaust channel 320 is provided in the adapter block 300, wherein one end of the exhaust channel 320 is disposed at the bottom of the adapter block 300 and communicates with the exhaust port 240, and the other end of the exhaust channel 320 is disposed on the side wall of the adapter block 300 and is suitable for an exhaust pipe (not shown in the figure); when bubbles exist after the input liquid is filled in the cavity 220, the bubbles are discharged from the exhaust port 240 by pressurizing the liquid supply to the second die head 200, and the bubbles at the exhaust port 240 can be transported to the exhaust pipe through the exhaust channel 320 to finally complete the exhaust of the bubbles until there are no bubbles at the exhaust port 240, thereby ensuring the quality of the coating liquid.

[0039] See also Figures 5 and 6 The top of the second die head 200 is provided with a plurality of connecting holes 250, and the top of the adapter block 300 is provided with a plurality of adapter holes 330 adapted to the connecting holes 250; bolts pass through the adapter holes 330 and the connecting holes 250 to connect the adapter block 300 with the second die head 200, and the connection structure is simple and reliable.

[0040] See also Fig. 9 A lip avoidance position 260 adapted to the second half lip 230 is provided between the first half lip 110; by providing the lip avoidance position 260, an appropriate gap between the lips can be achieved to cope with the interval between the battery cells, so that the lip 120 and the battery cells correspond one to one without interfering with each other, thereby ensuring the quality of coating; and the lip avoidance position 260 is used in conjunction with the scraper of the die head, and the accumulated liquid on the lip is discharged from the lip avoidance position 260 to avoid the occurrence of liquid accumulation.

[0041] See also Figure 2 Combined with Fig. 9A gap plate 400 is fixedly arranged between the first die head 100 and the second die head 200, and a plurality of notches 410 corresponding to the lip are arranged at the bottom of the gap plate 400; by setting the gap plate 400, the thickness of the gap plate 400 determines that a gap is arranged between the mouth of the cavity 220 and the inner wall of the first die head 100, and the flow rate of the liquid medicine can be controlled by adjusting the size of the gap, and the liquid medicine flows to the lip through the notches 410 to complete the spraying of the liquid medicine.

[0042] See also Figure 3 The bottom of the gap plate 400 is provided with a gap avoidance position 420 corresponding to the lip avoidance position 260; by providing the gap avoidance position 420, the gap avoidance position 420 corresponds to the position of the lip avoidance position 260, thereby avoiding the occurrence of liquid accumulation.

[0043] See also Figure 5 The side wall of the gap plate 400 is provided with a plurality of gap mounting holes 430, and a fixing hole 270 adapted to the gap mounting hole 430 is provided between the first die head 100 and the second die head 200; bolts pass through the fixing holes 270 and the gap mounting holes 430 in sequence to install the gap plate 400 between the first die head 100 and the second die head 200.

[0044] In some embodiments, refer to 1 to Figure 3 When the coating liquid required for each battery cell is the same, a liquid inlet 210 is provided on the top of the second die head 200, and a cavity 220 is provided inside the second die head 200, and the cavity 220 is connected to the liquid inlet 210; the lips are connected to a cavity 220 together, and when working, the liquid is introduced into the cavity 220 and transported to each lip 120, and each lip 120 sprays the same liquid to spray the liquid on multiple battery cells, thereby improving the spraying efficiency and output, and realizing the mass production of perovskite battery cells.

[0045] In other embodiments, see 4 to Fig. 9When the coating liquid required for each battery cell is the same, at least two liquid inlets 210 are provided on the top of the second die head 200, and at least two cavities 220 are provided inside the second die head 200, and the cavities 220 are connected to the liquid inlets 210; each liquid inlet 210 corresponds to a cavity 220, and liquid can be supplied to all cavities 220, and the liquid is transported to the corresponding lip 120 to spray multiple groups of battery cells, thereby improving the spraying efficiency and output, and realizing the mass production of perovskite battery cells. Or when different battery cells need to be sprayed with different liquid medicines, at least two liquid inlets 210 are provided on the top of the second die head 200, and at least two cavities 220 are provided inside the second die head 200, and the cavity 220 is connected with the liquid inlet 210; each liquid inlet 210 corresponds to a cavity 220, and liquid can be supplied to only a single cavity 220, or different liquid medicines can be provided to different cavities 220 respectively, and the liquid medicines are transported to the corresponding lip 120 to be sprayed on the corresponding battery cells to meet different work needs. This can not only improve the coating efficiency and realize the coating of multiple groups of battery cells, but also realize the coating of multiple liquid medicines on different battery cells to meet different work needs.

[0046] In some other embodiments, the structure of the first die head 100 is the same as that of the second die head 200; when the coating liquid required by each battery cell is the same, the same liquid is delivered to each lip 120, and each lip 120 sprays the same liquid to spray the liquid on multiple battery cells, thereby improving the spraying efficiency and output, and realizing the mass production of perovskite battery cells.

[0047] In some other embodiments, the structure of the first die head 100 is the same as that of the second die head 200; when different battery cells need to be sprayed with different liquid medicines, the first die head 100 transports different liquid medicines to the corresponding lip 120 to spray the corresponding battery cells to meet different work needs, which can not only improve the coating efficiency and realize the coating of multiple groups of battery cells, but also realize the coating of multiple liquid medicines on different battery cells to meet different work needs.

[0048] In some other embodiments, a coating device includes any of the coating die heads described above.

[0049] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

[0050] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A coating die head, characterized in that: include: A first die head (100), the bottom of which is provided with at least two first half lips (110); a second die head (200), the second die head (200) being adapted in size to the first die head (100) and being detachably connected; at least one liquid inlet (210) being arranged at the top of the second die head (200), and at least one cavity (220) being arranged inside the second die head (200) and being communicated with the liquid inlet (210); at least two second half lips (230) being arranged at the bottom of the second die head (200), and the second half lips (230) being arranged below the cavity (220); The second half lip (230) and the first half lip (110) are adapted to form a lip opening (120), and a gap is provided between the inner wall of the second die head (200) and the inner wall of the first die head (100).

2. The coating die head according to claim 1, characterized in that At least one exhaust port (240) is provided at the top of the second die head (200), and the exhaust port (240) is in communication with the cavity (220).

3. The coating die head according to claim 2, characterized in that At least one adapter block (300) is fixedly connected to the top of the second die head (200), and a liquid inlet channel (310) is provided in the adapter block (300); wherein One end of the liquid inlet channel (310) is arranged at the bottom of the adapter block (300) and communicates with the liquid inlet port (210), and the other end of the liquid inlet channel (310) is arranged on the side wall of the adapter block (300) and is suitable for connecting to a liquid inlet pipe.

4. The coating die head according to claim 3, characterized in that An exhaust flow channel (320) is provided in the adapter block (300), wherein: One end of the exhaust flow channel (320) is arranged at the bottom of the adapter block (300) and communicates with the exhaust port (240), and the other end of the exhaust flow channel (320) is arranged on the side wall of the adapter block (300) and is suitable for the exhaust pipe.

5. The coating die head according to claim 4, characterized in that The top of the second die head (200) is provided with a plurality of connection holes (250), and the top of the adapter block (300) is provided with a plurality of adapter holes (330) adapted to the connection holes (250).

6. The coating die head according to claim 5, characterized in that A lip avoidance position (260) adapted to fit between the second half lips (230) is provided between the first half lips (110).

7. The coating die head according to claim 6, characterized in that A gap plate (400) is fixedly arranged between the first die head (100) and the second die head (200), and a plurality of notches (410) corresponding to the lip are arranged at the bottom of the gap plate (400).

8. The coating die head according to claim 7, characterized in that The bottom of the gap plate (400) is provided with a gap avoidance position (420) corresponding to the lip avoidance position (260).

9. The coating die head according to claim 8, characterized in that A plurality of gap mounting holes (430) are provided on the side wall of the gap plate (400), and fixing holes (270) adapted to the gap mounting holes (430) are provided between the first die head (100) and the second die head (200).

10. The coating die head according to claim 1, characterized in that: The structure of the first die head (100) is the same as the structure of the second die head (200).

11. A coating device, characterized in that: The invention comprises a coating die head as described in any one of claims 1 to 10.

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