Pole piece drying device, drying oven and drying equipment

Abstract

The utility model relates to the technical field of pole piece processing, and discloses a pole piece drying device, a drying oven and drying equipment, and the pole piece drying device comprises a base frame; the light source structure comprises an optical fiber and a transmitting end, the optical fiber is connected with the transmitting end, the transmitting end is arranged on the base frame, the optical fiber is used for guiding the laser to the transmitting end, and the laser is transmitted to a set area through the transmitting end; the light uniformizing structure comprises a light uniformizing sheet and a shaping sheet which are arranged in a set area on the base frame, and the light uniformizing sheet is located on the side, close to the transmitting end, of the shaping sheet and used for uniformly diverging light beams transmitted by the transmitting end into circular light spots; and the shaping sheet is used for diffusing and refracting the circular light spots emitted by the dodging sheet to form light spots in a set shape matched with the shape of the dried pole piece. The pole piece drying device solves the problem of low drying efficiency of the pole piece.

Description

Technical Field

[0001] The utility model relates to the technical field of pole piece processing, in particular to a pole piece drying device, an oven and a drying equipment. Background Art

[0002] During the production process of battery pole pieces, a coating process is required to coat the corresponding slurry onto the battery pole pieces to make the pole pieces meet the corresponding functional requirements. During the processing, after the slurry is coated onto the pole pieces, it needs to be dried so that the slurry firmly adheres to the pole pieces to form a stable coating.

[0003] In the prior art, the drying of the coated pole pieces is usually carried out by hot air drying. The pole pieces are input into the oven through a transportation structure, and circulating hot air is set in the oven to heat the pole pieces, thereby realizing drying. Or, the infrared heating in the oven is combined with hot air circulation to heat the pole pieces, thereby improving the drying efficiency.

[0004] However, in the above prior art, whether it is hot air circulation heating or the combination of hot air circulation and infrared heating, their energy utilization rates are relatively low, and the drying efficiency is limited. Summary of the Utility Model

[0005] In view of this, the utility model provides a pole piece drying device, an oven and a drying equipment to solve the problem of low drying efficiency of the coated pole pieces.

[0006] In a first aspect, the utility model provides a pole piece drying device, including: a base frame; a light source structure, including an optical fiber and a transmitting end, the optical fiber is connected to the transmitting end, the transmitting end is arranged on the base frame, the optical fiber is used to guide the laser to the transmitting end and emit it to a set area by the transmitting end; a light homogenizing structure, including a light homogenizing sheet and a shaping sheet arranged in the set area on the base frame, the light homogenizing sheet is located on the side of the shaping sheet close to the transmitting end, the light homogenizing sheet is used to uniformly diverge the light beam emitted by the transmitting end into a circular light spot, and the shaping sheet is used to diffusely refract the circular light spot emitted by the light homogenizing sheet to form a light spot with a set shape adapted to the shape of the pole piece to be dried.

[0007] Beneficial effects: The base frame provides an installation foundation for each component. The optical fiber is used to refract and conduct the laser, enabling the laser to emit from a specified position. The emitting end is used to receive the laser conducted by the optical fiber and emit the laser at a required angle to a set area. Then, through the light homogenizing sheet of the light homogenizing structure, the light beam output by the optical fiber is evenly diverged to form a circular light spot, and the circular light spot is diffused and refracted by the shaping sheet, so as to be shaped into a light spot of a set shape, making the shape of the final laser light spot match the shape of the polar plate to be dried. Furthermore, the light spot formed by the laser beam output by the same optical fiber is evenly irradiated on the polar plate to be dried. The laser is used to rapidly heat the polar plate, realizing efficient drying of the polar plate. And compared with the hot air circulation drying device, the device is small in volume, the overall equipment occupies less space, and can effectively improve the space utilization rate of the site.

[0008] In an optional implementation manner, the base frame includes a housing and a fixing plate. The fixing plate is arranged inside the housing. The fixing plate is provided with a fixing hole penetrating through the fixing plate in the thickness direction. The emitting end is located at the fixing hole and is connected to the fixing plate. The optical fiber and the light homogenizing structure are respectively arranged on two sides of the fixing plate in the thickness direction.

[0009] Beneficial effects: Since the frame includes a housing and a fixing plate, the housing is used to protect the internal light source structure and light homogenizing structure, and the fixing plate provides an installation foundation for the emitting end in the light source structure, so that the emitting end can accurately emit the laser towards the set area.

[0010] In an optional implementation manner, the light homogenizing sheet and the shaping sheet are arranged at intervals, and the base frame is provided with an adjusting structure suitable for adjusting the distance between the light homogenizing sheet and the shaping sheet.

[0011] Beneficial effects: The light homogenizing sheet and the shaping sheet are arranged at intervals, and the distance between the light homogenizing sheet and the shaping sheet is adjusted through the adjusting structure, so that the optical path relationship between the light homogenizing sheet and the shaping sheet can be adjusted, and further the size of the final light spot can be controlled. The staff can adjust the size of the light spot by changing the distance between the light homogenizing sheet and the shaping sheet, making the device adapt to polar plates of different sizes and shapes, and improving the practicability of the device.

[0012] In a second aspect, the present invention also provides a polar plate oven, including: a box body; the above-mentioned polar plate drying device, and the polar plate drying device is arranged inside the box body.

[0013] Beneficial effects: Through the setting of the drying oven, stable environmental factors are provided for the polar plate to be dried. When the polar plate is heated by the laser, it can avoid the interference of surrounding environmental factors, resulting in a reduction in drying efficiency and product contamination. And by adopting the above-mentioned polar plate drying device, the drying efficiency of the polar plate is improved, and further the product production capacity is improved.

[0014] In an alternative embodiment, the box body is provided with at least two air nozzles, and the air nozzles are spaced apart in the direction of the conveyance of the electrode sheet to be dried.

[0015] Advantageous effects: By providing air nozzles in the oven, while the above-mentioned electrode sheet drying device dries the electrode sheet to be dried, hot air can be blown out through the air nozzles to heat up the electrode sheet, combining hot air drying with laser drying, further improving the drying efficiency of the electrode sheet and the production capacity of the product. In addition, by providing air nozzles on the front and rear sides of the base frame along the direction of the conveyance of the electrode sheet to be dried, the air nozzles are set to blow out hot air or cold air as needed, so as to adjust the temperature of the electrode sheet to be dried, preventing incomplete drying caused by insufficient temperature of the electrode sheet, or preventing the electrode sheet from being over-dried due to excessive temperature of the electrode sheet, which affects the product quality.

[0016] In a third aspect, the present invention further provides an electrode sheet drying device, including: the above-mentioned electrode sheet oven; a laser generator, provided outside the box body, the first end of the optical fiber is connected to the laser generator, and the second end is connected to the emitting end.

[0017] Advantageous effects: By adopting the above-mentioned electrode sheet oven, high-efficient electrode sheet drying efficiency is obtained, and the production capacity of the product is improved. In addition, since the laser generator is arranged outside the drying box, and the laser emitted by the laser generator is guided into the drying box by refraction through the optical fiber and conveyed to the emitting end, it can not only provide a drying light source for the electrode sheet to be dried in the box body, but also separate the laser generator from the high-temperature environment in the box body, avoiding adverse effects such as damage caused by overheating of the laser generator, effectively extending the service life of the device and improving the product quality and production capacity.

[0018] In an alternative embodiment, it further includes a first temperature sensor and a control unit. The control unit is electrically connected to the first temperature sensor and the laser generator respectively. The first temperature sensor is located at the rear side of the base frame along the direction of the conveyance of the electrode sheet to be dried. The first temperature sensor is configured to collect the temperature information of the electrode sheet to be dried and send it to the control unit. The control unit is configured to receive the temperature information transmitted by the first temperature sensor and adjust the output power of the laser generator.

[0019] Advantageous effects: By providing a first temperature sensor in the oven and setting a control unit to process the temperature information collected by the first temperature sensor, according to the temperature collected by the first temperature sensor on the electrode sheet to be dried, the control unit controls the output power of the generator to adjust the drying temperature of the electrode sheet to be dried, avoiding the situation of product quality caused by over-drying.

[0020] In an alternative embodiment, a cooling plate is further included. The cooling plate is vertically arranged, and the laser generator is arranged on the cooling plate. A cooling flow channel is arranged inside the cooling plate, and it has a medium inlet and a medium outlet. The cooling plate cools the components mounted on it through the flow of a cooling medium.

[0021] Advantageous effects: By providing a cooling plate and arranging a cooling flow channel, a medium inlet, and a medium outlet on the cooling plate, the liquid cooling medium enters the cooling flow channel through the medium inlet, and takes away the heat of the heat-generating components on the cooling plate as it flows in the cooling flow channel, and finally discharges from the medium outlet, efficiently cooling the components on the cooling plate and ensuring the normal operation of each component.

[0022] In an alternative embodiment, a control cabinet is further included. Part of the cooling plate is located inside the control cabinet, the laser generator is arranged on the part of the cooling plate located inside the control cabinet, and the medium inlet and the medium outlet of the cooling plate are located outside the control cabinet.

[0023] Advantageous effects: By providing a control cabinet, components such as the cooling plate and the laser generator are protected, and since both the medium inlet and the medium outlet of the cooling plate are located outside the control cabinet, separation of the cooling medium and the electrical appliances is achieved, avoiding adverse situations such as short circuits.

[0024] In an alternative embodiment, a second temperature sensor is arranged on the cooling plate. The second temperature sensor is configured to collect the temperature of the cooling medium inside the cooling plate and send the collected temperature information to the control unit.

[0025] Advantageous effects: By arranging a second temperature sensor to monitor the temperature of the cooling medium inside the cooling plate and receiving the signal through the control unit, it is convenient to feedback to the staff, enabling the staff to accurately understand the temperature situation of the cooling medium inside the cooling plate, thereby evaluating the working conditions of the components on the cooling plate. If the temperature is too high, adjustments can be made in a timely manner and faults can be checked, improving the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic internal structure diagram of a pole piece drying device according to an embodiment of the present invention;

[0028] Figure 2 For Figure 1 a schematic diagram from another perspective;

[0029] Figure 3 is a cross-sectional schematic diagram of a pole piece drying device according to an embodiment of the present invention, which is used to reflect the positional relationship between the light homogenizing structure and the light source structure;

[0030] Figure 4 is a schematic diagram of a pole piece drying equipment according to an embodiment of the present invention, which is used to reflect the relationship between the control cabinet and the base frame;

[0031] Figure 5 is a schematic diagram of a pole piece drying equipment according to an embodiment of the present invention, which is used to reflect the internal structure of the control cabinet;

[0032] Figure 6 is a cross-sectional schematic diagram of a pole piece oven according to an embodiment of the present invention, which is used to reflect the positional relationship between the pole piece drying device and the air nozzle.

[0033] Description of the reference numerals:

[0034] 100, base frame; 101, outer shell; 102, fixing plate; 103, adjusting structure; 200, light source structure; 201, optical fiber; 202, emitting end; 300, light homogenizing structure; 301, light homogenizing sheet; 302, shaping sheet; 400, air nozzle; 500, laser generator; 600, control unit; 700, cooling plate; 701, medium inlet; 702, medium outlet; 800, control cabinet; 900, pole piece to be dried. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] The following will be combined with Figures 1 to 6 , to describe the embodiments of the present invention.

[0037] According to an embodiment of the present invention, on the one hand, a pole piece drying device is provided. Please refer to Figures 1 to 3, a base frame 100; a light source structure 200, including an optical fiber 201 and a transmitting end 202, the optical fiber 201 is connected to the transmitting end 202, the transmitting end 202 is arranged on the base frame 100, the optical fiber 201 is used to guide the laser to the transmitting end 202, and the laser is emitted by the transmitting end 202 to a set area; a light homogenizing structure 300, including a light homogenizing sheet 301 and a shaping sheet 302 arranged in the set area on the base frame 100, the light homogenizing sheet 301 is located on the side of the shaping sheet 302 close to the transmitting end 202, the light homogenizing sheet 301 is used to uniformly diverge the light beam emitted by the transmitting end 202 into a circular light spot, and the shaping sheet 302 is used to diffusely refract the circular light spot emitted by the light homogenizing sheet 301 to form a light spot with a set shape adapted to the shape of the polar plate 900 to be dried.

[0038] In this embodiment, the base frame 100 provides an installation basis for each component. The optical fiber 201 is used for refracting and conducting the laser, so that the laser is emitted from a specified position. The transmitting end 202 is used to receive the laser conducted by the optical fiber 201 and emit the laser at a required angle to the set area. Then, through the light homogenizing sheet 301 of the light homogenizing structure 300, the light beam output by the optical fiber 201 is uniformly diverged to form a circular light spot, and the circular light spot is diffusely refracted by the shaping sheet 302, so as to be shaped into a light spot with a set shape, so that the shape of the final laser light spot is adapted to the shape of the polar plate 900 to be dried. Furthermore, the light spot formed by the laser beam output by the same optical fiber 201 uniformly irradiates the polar plate 900 to be dried, and the laser is used to rapidly heat the polar plate to realize efficient drying of the polar plate. And compared with the hot air circulation drying device, the device has a small volume, the overall equipment occupies less space, and can effectively improve the space utilization rate of the site.

[0039] In the above embodiment, the transmitting end 202 emits the laser to the set area. The set area can be directly below the transmitting end 202 or a position on one side below the transmitting end 202 according to the actual needs of the equipment. After the light homogenizing structure 300 refracts and scatters the laser, the shape of the set light spot obtained is determined according to the actual shape of the polar plate 900 to be dried. The set shape can be a rectangle or a square, etc., as long as it uniformly sweeps across the entire surface of the drying polar plate during the transportation of the polar plate 900 to be dried.

[0040] In the above embodiment, it should be noted that the material of the light homogenizing sheet 301 is quartz or glass, and the micro-lens array unit on the light homogenizing sheet 301 is used to refract and reflect the laser to achieve the light homogenizing effect. The shaping sheet 302 is also called a fly-eye lens, which is formed by combining a plurality of small lenses, and the laser is refracted by the plurality of small lenses to form a light spot with a set shape.

[0041] In one embodiment, the base frame 100 includes a housing 101 and a fixing plate 102. The fixing plate 102 is disposed inside the housing 101. The fixing plate 102 is provided with fixing holes penetrating through the fixing plate 102 in the thickness direction. The emitting end 202 is located at the fixing holes and connected to the fixing plate 102. The optical fiber 201 and the light homogenizing structure 300 are respectively disposed on two sides of the fixing plate 102 in the thickness direction.

[0042] Specifically, the emitting end 202 can be an emitting head disposed at the end of the optical fiber 201 for emitting the laser refracted in the optical fiber 201 at a required angle, or in other forms. The emitting end 202 is fixedly installed on the fixing plate 102 by being snap-fitted with the fixing holes. One end of the emitting end 202 away from the optical fiber 201 can be located inside the fixing holes, or the emitting end 202 can pass through the fixing holes, and the emitting end 202 is located on the side of the fixing holes facing the drying pole piece 900.

[0043] In this embodiment, since the frame includes the housing 101 and the fixing plate 102, the housing 101 is used to protect the internal light source structure 200 and the light homogenizing structure 300, and the fixing plate 102 provides an installation basis for the emitting end 202 in the light source structure 200, so that the emitting end 202 can accurately emit laser light in the direction of the set area.

[0044] In one embodiment, the light homogenizing sheet 301 and the shaping sheet 302 are arranged at intervals, and the base frame 100 is provided with an adjusting structure 103 suitable for adjusting the distance between the light homogenizing sheet 301 and the shaping sheet 302.

[0045] Specifically, the specific forms of the light homogenizing sheet 301 and the shaping sheet 302 are not limited in this embodiment. Exemplarily, the light homogenizing sheet 301 and the shaping sheet 302 can be connected and integrally arranged through parts extending from their respective edges. In some embodiments not shown, the light homogenizing sheet 301 and the shaping sheet 302 can also be separately arranged.

[0046] It should be noted that the specific form of the adjustment structure 103 is not limited in this embodiment. In some embodiments not shown, when the light homogenizing sheet 301 and the shaping sheet 302 are separately arranged, the adjustment structure 103 is a clamping groove and a spacer. The sides of the light homogenizing sheet 301 and the shaping sheet 302 are arranged in the clamping groove, and the size of the spacer is selected according to actual needs and arranged between the light homogenizing sheet 301 and the shaping sheet 302. The staff can adjust the spacing between the light homogenizing sheet 301 and the shaping sheet 302 by selecting spacers of different sizes. In some other embodiments not shown, when the light homogenizing sheet 301 and the shaping sheet 302 are integrally arranged, since the spacing between the same group of the light homogenizing sheet 301 and the shaping sheet 302 is fixed, the adjustment structure 103 can be a clamping groove arranged inside the outer shell 101 of the base frame 100 and can be adjusted in size by a slider. The movement of the slider can be realized by the cooperation of a screw rod and a guiding groove. By adjusting the size of the clamping groove, the staff can make an overall adaptation to the light homogenizing sheet 301 and the shaping sheet 302 of different models and sizes, so that the staff can adjust the spacing between the light homogenizing sheet 301 and the shaping sheet 302 on the device by replacing the overall components of different light homogenizing sheets 301 and shaping sheets 302. In addition to the above embodiments, the adjustment structure 103 can also be in other forms as long as it can realize the adjustment of the spacing between the light homogenizing sheet 301 and the shaping sheet 302.

[0047] In this embodiment, the light homogenizing sheet 301 and the shaping sheet 302 are arranged at intervals, and the spacing between the light homogenizing sheet 301 and the shaping sheet 302 is adjusted by the adjustment structure 103, so that the optical path relationship between the light homogenizing sheet 301 and the shaping sheet 302 can be adjusted, and further the size of the final light spot can be controlled. The staff can adjust the size of the light spot by changing the spacing between the light homogenizing sheet 301 and the shaping sheet 302, so that the device can be adapted to the pole pieces of different sizes and shapes, and the practicability of the device is improved.

[0048] According to an embodiment of the present invention, on the other hand, a pole piece oven is also provided. Please refer to Figure 6 , including: a box body (not shown in the figure); the above-mentioned pole piece drying device, and the pole piece drying device is arranged inside the box body.

[0049] Specifically, a conveying device is arranged inside the box body for conveying the pole pieces 900 to be dried, and the base frame 100 is located above the conveying device.

[0050] In this embodiment, through the setting of the drying oven, a stable environmental factor is provided for the polar plate 900 to be dried. When the polar plate is heated by laser, it can avoid the reduction of drying efficiency and product pollution caused by the interference of surrounding environmental factors. And by adopting the above-mentioned polar plate drying device, the drying efficiency of the polar plate is improved, and thus the product production capacity is improved. In addition, by arranging a conveying device in the oven, the polar plate moves in the oven and passes through the position where the above-mentioned polar plate drying device is located, so that the device can continuously and quickly dry multiple groups of polar plates 900 to be dried, further improving the production efficiency.

[0051] In one embodiment, the box body is provided with at least two air nozzles 400, and the air nozzles 400 are arranged at intervals in the conveying direction of the polar plate drying device for the polar plate 900 to be dried.

[0052] Specifically, as Figure 6 shown, the air nozzles 400 are arranged at intervals in the conveying direction of the polar plate drying device for the polar plate 900 to be dried, and hot air or cold air is blown out from the air outlets of the air nozzles 400. The hot air is used to assist in heating the polar plate 900 to be dried and take away the volatilized solvent, and the cold air is mainly used to take away the solvent. An air outlet is provided on the box body, and air enters the box body from the air nozzles 400 and is discharged from the air outlet. While the air is discharged from the box body, the solvent volatilized during the drying process of the polar plate is carried out of the box body.

[0053] It should be noted that the air nozzles 400 can blow out hot air according to actual needs to assist in heating the polar plate 900 to be dried, or can blow out cold air to appropriately cool the polar plate 900 to be dried. The above "hot air" and "cold air" are relative to the temperature of the polar plate 900 to be dried before being blown by the air flow blown out by the air nozzles 400. The specific temperature of the polar plate 900 to be dried can be measured by the first temperature sensor.

[0054] In this embodiment, by arranging the air nozzles 400 in the oven, while the above-mentioned polar plate drying device dries the polar plate 900 to be dried, hot air can be blown out through the air nozzles 400 to heat up the polar plate, so that hot air drying is combined with laser drying, further improving the drying efficiency of the polar plate and the production capacity of the product. In addition, by arranging air nozzles 400 on the front and rear sides of the base frame 100 in the conveying direction of the polar plate 900 to be dried, the air nozzles 400 are set to blow out hot air or cold air according to needs, so as to adjust the temperature of the polar plate 900 to be dried, prevent incomplete drying caused by insufficient polar plate temperature, or prevent over-drying of the polar plate due to too high polar plate temperature, which affects the product quality.

[0055] According to an embodiment of the present invention, on the other hand, a polar plate drying equipment is also provided. Please refer to Figure 5, including: the above-mentioned pole piece oven; a laser generator 500, which is arranged outside the oven. The first end of the optical fiber 201 is connected to the laser generator 500, and the second end is connected to the emitting end 202.

[0056] In this embodiment, by using the above-mentioned pole piece oven, high-efficient pole piece drying efficiency is obtained, and the production capacity of the product is improved. In addition, since the laser generator 500 is arranged outside the drying oven, and the laser emitted by the laser generator 500 is guided into the drying oven by refraction through the optical fiber 201 and transported to the emitting end 202, it can not only provide a drying light source for the pole piece 900 to be dried in the oven, but also separate the laser generator 500 from the high-temperature environment in the oven, avoiding adverse effects such as damage caused by overheating of the laser generator 500, effectively extending the service life of the equipment and improving the product quality and production capacity.

[0057] In one embodiment, it further includes a first temperature sensor and a control unit 600. The control unit 600 is electrically connected to the first temperature sensor and the laser generator 500 respectively. The first temperature sensor is located at the rear side of the base frame 100 along the conveying direction of the pole piece 900 to be dried. The first temperature sensor is configured to collect the temperature information of the pole piece 900 to be dried and send it to the control unit 600. The control unit 600 is configured to receive the temperature information transmitted by the first temperature sensor and adjust the output power of the laser generator 500.

[0058] In this embodiment, by arranging a first temperature sensor in the oven and setting a control unit 600 to process the temperature information collected by the first temperature sensor, according to the temperature collected by the first temperature sensor on the pole piece 900 to be dried, the control unit 600 controls the output power of the generator to adjust the drying temperature of the pole piece 900 to be dried, avoiding the situation of product quality caused by over-drying.

[0059] In one embodiment, it further includes a cooling plate 700. The cooling plate 700 is vertically arranged, and the laser generator 500 is arranged on the cooling plate 700. The cooling plate 700 is provided with a cooling flow channel and has a medium inlet 701 and a medium outlet 702. The cooling plate 700 cools the components installed on the cooling plate 700 through the flow of the cooling medium.

[0060] Specifically, in addition to the laser generator 500, heat-generating components such as the power supply and the control unit 600 of the equipment are all installed on the cooling plate 700, and heat dissipation of multiple components is achieved through the cooling plate 700. The cooling medium can be water or other liquid media with heat exchange functions, such as ethylene glycol, etc.

[0061] In this embodiment, by providing a cooling plate 700 and arranging a cooling channel, a medium inlet 701 and a medium outlet 702 on the cooling plate 700, the liquid cooling medium enters the cooling channel through the medium inlet 701, and takes away the heat of the heat-generating components on the cooling plate 700 as it flows in the cooling channel, and finally discharges from the medium outlet 702, so as to efficiently cool the components on the cooling plate 700 and ensure the normal operation of each component.

[0062] In one embodiment, it further includes a control cabinet 800. A part of the cooling plate 700 is located inside the control cabinet 800. The laser generator 500 is arranged on the part of the cooling plate 700 located inside the control cabinet 800. The medium inlet 701 and the medium outlet 702 of the cooling plate 700 are located outside the control cabinet 800.

[0063] In this embodiment, by providing the control cabinet 800, components such as the cooling plate 700 and the laser generator 500 are protected. And since both the medium inlet 701 and the medium outlet 702 of the cooling plate 700 are located outside the control cabinet 800, the separation of the cooling medium from the electrical appliances is realized, avoiding adverse situations such as short circuits.

[0064] In one embodiment, a second temperature sensor is provided on the cooling plate 700. The second temperature sensor is configured to collect the temperature of the cooling medium in the cooling plate 700 and send the collected temperature information to the control unit 600.

[0065] In this embodiment, by providing the second temperature sensor to monitor the temperature of the cooling medium in the cooling plate 700 and receiving the signal through the control unit 600, it is convenient to feedback to the staff, enabling the staff to accurately understand the temperature situation of the cooling medium in the cooling plate 700, thereby evaluating the working conditions of the components on the cooling plate 700. If the temperature is too high, it can be adjusted in time and the faults can be checked, improving the reliability of the equipment.

[0066] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A pole piece drying device, characterized in that: include: Base frame (100); A light source structure (200) comprises an optical fiber (201) and an emitting end (202), wherein the optical fiber (201) is connected to the emitting end (202), the emitting end (202) is arranged on the base frame (100), and the optical fiber (201) is used to guide laser light to the emitting end (202), and the emitting end (202) emits the laser light to a set area; The light homogenizing structure (300) comprises a light homogenizing sheet (301) and a shaping sheet (302) arranged in the set area on the base frame (100), wherein the light homogenizing sheet (301) is located on a side of the shaping sheet (302) close to the emitting end (202), the light homogenizing sheet (301) is used to evenly disperse the light beam emitted by the emitting end (202) into a circular light spot, and the shaping sheet (302) is used to diffuse and refract the circular light spot emitted by the light homogenizing sheet (301) to form a light spot of a set shape that matches the shape of the dried electrode sheet (900).

2. The electrode drying device according to claim 1, characterized in that: The base frame (100) comprises an outer shell (101) and a fixing plate (102); the fixing plate (102) is arranged in the outer shell (101); a fixing hole is provided on the fixing plate (102) and penetrates the fixing plate (102) along the thickness direction; the transmitting end (202) is located at the fixing hole and connected to the fixing plate (102); the optical fiber (201) and the light homogenizing structure (300) are arranged on both sides of the fixing plate (102) in the thickness direction.

3. The electrode drying device according to claim 1 or 2, characterized in that: The light homogenizing sheet (301) and the shaping sheet (302) are arranged at intervals, and the base frame (100) is provided with an adjustment structure (103) suitable for adjusting the distance between the light homogenizing sheet (301) and the shaping sheet (302).

4. A pole piece oven, characterized in that: include: Box; The electrode drying device according to any one of claims 1 to 3 is arranged in a box.

5. The pole piece oven according to claim 4, characterized in that: The box body is provided with at least two air nozzles (400), and the air nozzles (400) and the electrode drying device are arranged at intervals in the direction in which the dried electrode (900) is conveyed.

6. A pole piece drying device, characterized in that: include: The pole piece oven according to claim 4 or 5; The laser generator (500) is arranged outside the box; the first end of the optical fiber (201) is connected to the laser generator (500), and the second end is connected to the transmitting end (202).

7. The electrode drying equipment according to claim 6, characterized in that: The invention also includes a first temperature sensor and a control unit (600), wherein the control unit (600) is electrically connected to the first temperature sensor and the laser generator (500) respectively, wherein the first temperature sensor is located at the rear side of the base frame (100) along the conveying direction of the dried electrode piece (900), and the first temperature sensor is configured to collect temperature information of the dried electrode piece (900) and send it to the control unit (600), and the control unit (600) is configured to receive the temperature information transmitted by the first temperature sensor and adjust the output power of the laser generator (500).

8. The electrode drying device according to claim 7, characterized in that: The invention also comprises a cooling plate (700), wherein the cooling plate (700) is arranged vertically, and the laser generator (500) is arranged on the cooling plate (700). A cooling flow channel is arranged inside the cooling plate (700), and the cooling plate (700) has a medium inlet (701) and a medium outlet (702). The cooling plate (700) cools down the components installed on the cooling plate (700) through the flow of cooling medium.

9. The electrode drying device according to claim 8, characterized in that: It also includes a control cabinet (800), wherein the cooling plate (700) is partially located inside the control cabinet (800), the laser generator (500) is arranged on the portion of the cooling plate (700) located inside the control cabinet (800), and the medium inlet (701) and the medium outlet (702) of the cooling plate (700) are located outside the control cabinet (800).

10. The electrode drying equipment according to claim 8, characterized in that: The cooling plate (700) is provided with a second temperature sensor, and the second temperature sensor is configured to collect the temperature of the cooling medium in the cooling plate (700) and send the collected temperature information to the control unit (600).

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