Drying device and drying equipment for battery pole piece

Abstract

The utility model discloses a battery pole piece drying device and drying equipment. The battery pole piece drying device comprises a supporting assembly, a roller passing assembly, an infrared lamp device and an air blowing assembly. The roller passing assembly is rotationally arranged on the supporting assembly and used for conveying the pole pieces. The infrared lamp device is arranged on the supporting assembly in a sliding mode, and the infrared lamp device and the roller passing assembly are oppositely arranged, so that the infrared lamp device can irradiate the pole piece on the roller passing assembly. The air blowing assembly is arranged on the supporting assembly, and the air blowing assembly and the roller passing assembly are oppositely arranged, so that the air blowing assembly can blow air to the pole piece on the roller passing assembly. The infrared lamp device irradiates the pole piece of the roller passing assembly, so that heat is dissipated around the infrared lamp device. In the process that the blowing assembly blows hot air to the pole piece, heat dissipated around the infrared lamp device can be blown to the pole piece, and evaporation of water molecules in the pole piece is accelerated. According to the drying device, through combination of infrared drying and hot air drying, the drying efficiency of the pole piece can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery equipment, in particular to a drying device and drying equipment for battery pole pieces. Background Art

[0002] During the production and coating process of lithium-ion or sodium-ion battery electrodes, the current industry generally uses a drying system consisting of multiple hot air ovens to heat the battery electrodes. Because the coating on the edge of a single side of the battery electrode is thinner than that in the middle area, the coating on the edge of the single side evaporates faster than that in the middle area. During the drying process, the coating on the edge of the single side dries before the coating in the middle area, causing the edge to deform and bend due to drying stress. When the battery electrode is flattened by the first roller at the exit of the oven, defects such as cracking and wrinkling appear. These cracked and wrinkled electrodes, when made into batteries, can cause powder loss, short circuits, lithium precipitation, and other factors that affect product quality and pose safety risks.

[0003] Infrared lamps generate infrared radiation, which can simultaneously heat the interior and surface of the electrode, thereby achieving more balanced drying of the inside and outside of the electrode, thereby reducing the risks of edge curling and cracking. However, drying battery electrodes using only infrared lamps is inefficient. Utility Model Content

[0004] The main purpose of the utility model is to provide a drying device and drying equipment for battery pole pieces, aiming to solve the technical problem of low efficiency of drying battery pole pieces by a single method of infrared lamp.

[0005] In order to achieve the above-mentioned purpose of the utility model, the first aspect of the utility model provides a drying device for battery pole pieces, comprising:

[0006] Support components;

[0007] A roller assembly, the roller assembly being rotatably disposed on the support assembly and being used to convey the pole piece;

[0008] an infrared lamp device, the infrared lamp device being slidably disposed on the support assembly and being disposed opposite to the roller assembly so that the infrared lamp device can illuminate the pole piece on the roller assembly; and

[0009] The blowing assembly is arranged on the supporting assembly, the blowing assembly is arranged opposite to the infrared lamp device, and the blowing assembly is arranged opposite to the roller assembly, so that the blowing assembly can blow air to the pole piece on the roller assembly.

[0010] In one embodiment, the blowing assembly is provided with an air inlet, an air cavity and a first air outlet, the air cavity is respectively connected to the air inlet and the first air outlet, the first air outlet is arranged toward the roller assembly, and external air can enter the air cavity through the air inlet and be blown toward the pole piece on the roller assembly through the first air outlet.

[0011] In one embodiment, the blowing assembly further includes a second air outlet, which is connected to the air cavity and is arranged toward the infrared lamp device. External air can enter the air cavity through the air inlet and be blown toward the infrared lamp device through the second air outlet.

[0012] In one embodiment, the blowing assembly includes a first plate and a second plate, the first plate and the second plate enclose the wind cavity, the second plate is close to the infrared lamp device relative to the first plate, the air inlet is arranged on the first plate, and the first air outlet and the second air outlet are both arranged on the second plate.

[0013] In one embodiment, the second plate body includes a main plate body, a first side plate and a second side plate, the first side plate is arranged on one side of the main plate body, and the second side plate is arranged on the other side of the main plate body, the main plate body forms a groove, and the infrared lamp device is arranged in the groove, the main plate body is provided with the first air outlet, and the first side plate and the second side plate are both provided with the second air outlet.

[0014] In one embodiment, a plurality of first air outlet holes are provided, and the plurality of first air outlet holes are arranged along the length direction of the main board; and / or

[0015] There are multiple second air outlet holes, and the multiple second air outlet holes are respectively arranged along the length direction of the first side plate and the second side plate.

[0016] In one embodiment, the drying device further includes a first light shielding plate, the infrared lamp device is provided on the blowing assembly, the first light shielding plate is slidably provided at one end of the blowing assembly, and the first light shielding plate is located between the infrared lamp device and the roller assembly, and the first light shielding plate is used to block the light from the infrared lamp device irradiating the pole piece on the roller assembly; and / or

[0017] The drying device also includes a second light shielding plate, which is slidably arranged at the other end of the blowing assembly, and the second light shielding plate is located between the infrared lamp device and the roller assembly. The second light shielding plate is used to block the light from the infrared lamp device to the pole piece on the roller assembly.

[0018] In one embodiment, the drying device includes a sliding member and a locking member. The sliding member is connected to the blowing assembly. The sliding member is provided with a sliding hole. The support assembly is passed through the sliding hole so that the sliding member can be slidably set on the support assembly. The locking member is passed through the sliding member and can lock the diameter of the sliding hole to lock the sliding member from sliding relative to the support assembly.

[0019] In one embodiment, the support assembly includes a first support frame and a second support frame, the infrared lamp device and the blowing assembly are arranged on the first support frame, the first support frame and the second support frame are both provided in plurality, the plurality of first support frames and the plurality of second support frames are arranged in sequence at intervals, and the height of the first support frame is higher than the height of the second support frame.

[0020] In one embodiment, the drying device further includes a base and a plurality of adjusting members, the supporting assembly is arranged on a side of the base, the plurality of adjusting members are arranged on the other side of the base away from the supporting assembly, and the plurality of adjusting members are arranged at intervals at the edge of the base, and the plurality of adjusting members can adjust the height of the base so that the base is on a horizontal plane.

[0021] The second aspect of the present invention provides a drying device, comprising an oven and the above-mentioned drying device, wherein the oven is connected to the drying device, and the drying device performs secondary drying on the battery electrodes output from the oven.

[0022] Beneficial effects:

[0023] In this battery electrode drying device, an infrared lamp illuminates the electrode of a roller assembly, dissipating heat around the infrared lamp. A blower assembly blows hot air toward the electrode, directing the heat from the infrared lamp toward the electrode, removing moisture from the electrode surface and accelerating the evaporation of moisture within the electrode. This combination of infrared and hot air drying improves electrode drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of a drying device for battery pole pieces according to an embodiment of the present utility model.

[0025] Figure 2 It is a structural schematic diagram of a support assembly, a roller assembly and a blowing assembly in one embodiment of the utility model.

[0026] Figure 3 It is a structural schematic diagram of a roller assembly according to an embodiment of the present invention.

[0027] Figure 4It is a structural schematic diagram of a blowing assembly according to an embodiment of the present invention.

[0028] Figure 5 It is a structural schematic diagram of the second plate body of an embodiment of the present utility model.

[0029] in:

[0030] 10. Pole piece;

[0031] 100, support assembly; 110, first support frame; 111, first column; 112, second column; 113, beam; 120, second support frame; 130, fixing block; 140, first optical axis; 150, base; 160, adjustment member; 170, dust collection box;

[0032] 200, roller assembly; 210, roller; 220, second optical axis; 230, bearing;

[0033] 300. Infrared light device;

[0034] 400, blowing assembly; 410, air inlet; 420, air cavity; 430, connecting pipe; 440, first air outlet; 450, second air outlet; 460, first plate; 470, second plate; 471, main plate; 472, first side plate; 473, second side plate;

[0035] 510, sliding member; 520, locking member;

[0036] 610, first light shielding plate; 620, second light shielding plate.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections, direct connections, or indirect connections through an intermediate medium; they may refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] In some embodiments, a drying apparatus includes an oven and a drying device. The oven is connected to the drying device. The drying device performs secondary drying on the electrode output from the oven. Specifically, the oven can be a single-sided oven for a coating machine.

[0043] It should be noted that after the battery pole piece is subjected to hot air drying treatment by the single-side coating machine oven, the battery pole piece enters the drying device, and the drying device performs secondary drying on the battery pole piece. The drying device is arranged at the discharge side of the traction mechanism at the tail outlet of the single-side coating machine oven. The single-side coating machine oven toasts the single-side pole piece to 90% dryness (water content of 800-1000 ppm), ensures that the coating edge will not be deformed to cause cracking when the first roll after the oven outlet is flattened, and realizes efficient and rapid improvement to 100% dryness (water content of 100-300 ppm) in the constant tension area at the rear side of the traction mechanism by using the drying device, solves the edge coating cracking problem, and thus improves product quality and reduces manufacturing cost.

[0044] As shown in Figure 1 In some embodiments, a drying device for a battery pole piece includes a support assembly 100, a roll assembly 200, an infrared lamp device 300, and a blowing assembly 400. The infrared lamp device 300 and the blowing assembly 400 are slidingly arranged on the support assembly 100. The roll assembly 200 is rotatably arranged on the support assembly 100, and the roll assembly 200 conveys the pole piece 10. The support assembly 100 supports the roll assembly 200, the infrared lamp device 300, and the blowing assembly 400.

[0045] Specifically, the support assembly 100 includes a first support frame 110 and a second support frame 120. The height of the first support frame 110 is higher than the height of the second support frame 120. The infrared lamp device 300 and the blowing assembly 400 are arranged on the first support frame 110. The roll assembly 200 is arranged on the first support frame 110 and the second support frame 120. The pole piece 10 is arranged above the roll assembly 200 of the first support frame 110 and below the roll assembly 200 of the second support frame 120. The first support frame 110 and the second support frame 120 are arranged in multiple. The multiple first support frames 110 and the multiple second support frames 120 are arranged in sequence and are spaced apart, so that the pole piece 10 is arranged in a W shape after winding on the roll assembly 200, and the drying length of the pole piece 10 is increased.

[0046] As shown in Figure 2 Specifically, the first support frame 110 includes a first column 111, a second column 112, and a cross beam 113. One end of the cross beam 113 is connected with the first column 111, and the other end is connected with the second column 112. The first column 111 and the second column 112 are arranged opposite to each other, and the first column 111 and the second column 112 are arranged in a vertical direction.

[0047] Specifically, the support assembly 100 includes a fixing block 130. Two fixing blocks 130 can be provided. The two fixing blocks 130 are respectively disposed at the top of the first column 111 and the top of the second column 112. One end of the roller assembly 200 is disposed at the top of the first column 111 through the fixing block 130, and the other end is disposed at the top of the second column 112 through the fixing block 130. The fixing block 130 has an elongated hole. The fixing block 130 can be bolted through the elongated hole and fixed to the top of the first column 111 and the top of the second column 112.

[0048] Specifically, the roller assembly 200 can be adjusted along the direction of the elongated hole. By adjusting the position of the bolt relative to the elongated hole, the position of the fixing block 130 relative to the top of the first column 111 and the second column 112 can be adjusted, thereby adjusting the position of the roller assembly 200 relative to the top of the first column 111 and the second column 112. Specifically, the direction of the elongated hole is perpendicular to the length of the roller assembly 200.

[0049] Specifically, the first support frame 110 further includes a first optical axis 140. Two first optical axes 140 may be provided. The two first optical axes 140 are respectively vertically disposed at the top of the first column 111 and the top of the second column 112. The infrared lamp device 300 is slidably disposed between the two first optical axes 140.

[0050] like Figure 1 As shown, in some embodiments, the drying device further includes a base 150 and a plurality of adjusting members 160. The support assembly 100 is arranged on a side of the base 150. The plurality of adjusting members 160 are arranged on the other side of the base 150 away from the support assembly 100, and the plurality of adjusting members 160 are arranged at intervals at the edge of the base 150. The plurality of adjusting members 160 can adjust the height of the base 150, thereby making the base 150 on a horizontal plane. Specifically, the support assembly 100 is arranged on the upper side of the base 150. The plurality of adjusting members 160 are arranged on the lower side of the base 150. The adjusting member 160 can be a horizontal adjustment foot cup.

[0051] Specifically, a dust collecting box 170 is provided on the base 150. The dust collecting box 170 is located below the roller assembly 200 and can collect dust dropped from the pole piece 10 of the roller assembly 200 to prevent the dropped dust from contaminating the workbench.

[0052] Specifically, the bottom ends of the first and second columns 111, 112 are disposed on the side of the base 150. Height adjustment bases are provided at the bottom ends of the first and second columns 111, 112. The height adjustment bases can adjust the heights of the first and second columns 111, 112, and thereby adjust the heights of both ends of the roller assembly 200, thereby aligning the roller assembly 200 horizontally and thereby ensuring that the pole pieces 10 are laid horizontally.

[0053] like Figure 3 As shown, in some embodiments, the roller assembly 200 includes a roller 210, a second optical shaft 220, and a bearing 230. The ends of the second optical shaft 220 are respectively mounted on the support assembly 100. Specifically, the ends of the second optical shaft 220 are mounted at the tops of the first column 111 and the second column 112. The inner ring of the bearing 230 is sleeved onto the second optical shaft 220. The outer ring of the bearing 230 is connected to the roller 210. The roller 210 is rotatably mounted on the second optical shaft 220 via the bearing 230.

[0054] Specifically, a plurality of roller assemblies 200 may be provided, and the plurality of roller assemblies 200 are correspondingly provided on the first support frame 110 and the second support frame 120 .

[0055] Specifically, the roller assembly 200 may be an aluminum roller or a roller surface plated with zirconium oxide or hard chromium.

[0056] In some embodiments, the infrared lamp device 300 is disposed opposite to the roller assembly 200 so that the infrared lamp device 300 can illuminate the pole piece 10 on the roller assembly 200. The infrared lamp device 300 can be specifically an infrared lamp.

[0057] It should be noted that the electromagnetic waves generated by the infrared radiator propagate in a straight line at the speed of light to reach the pole piece 10. When the infrared emission frequency matches the natural frequency of the motion of water molecules in the pole piece 10 (that is, the infrared emission wavelength and the absorption wavelength of water in the pole piece 10), the water molecules in the wet pole piece 10 vibrate strongly, and intense friction occurs inside the pole piece 10, generating heat and achieving the purpose of drying.

[0058] During infrared drying, the surface moisture in the electrode 10 continuously evaporates and absorbs heat, causing the electrode surface temperature to drop, resulting in the internal temperature of the electrode 10 being higher than the surface temperature. This causes the heat diffusion direction of the electrode 10 to be from the inside out. At the same time, due to the moisture gradient within the electrode 10, moisture migration always occurs from the interior, where there is more moisture, to the exterior, where there is less moisture. Therefore, the moisture diffusion and thermal diffusion directions of the moisture within the electrode 10 are consistent, thereby accelerating the process of moisture diffusion outward from the electrode 10, and thus accelerating the drying process of the electrode 10.

[0059] Water's infrared absorption wavelength is in the 2.5-3.5μm range. The infrared lamp device 300 and its corresponding infrared absorption wavelength parameters were selected. The "medium wave" wavelength is close to that of water. The order is: "medium wave" > "carbon medium wave" > "fast medium wave." Considering technical parameters such as response time, cross-section, and maximum surface power density, the order is: "carbon medium wave" > "fast medium wave" > "medium wave." Based on the above, "carbon medium wave" is the best choice, followed by "fast medium wave."

[0060] In some embodiments, the infrared lamp device 300 is disposed above the roller assembly 200 and irradiates the pole piece 10 of the roller assembly 200 from top to bottom. Specifically, the dryness of the pole piece 10 is controlled by controlling the output power of the infrared lamp device 300.

[0061] Specifically, a plurality of infrared lamp devices 300 may be provided, and the plurality of infrared lamp devices 300 are provided in a one-to-one correspondence with the plurality of roller assemblies 200 .

[0062] The infrared lamp device 300 may adopt a double lamp tube structure and may be provided with a reflector plate on the infrared lamp device 300 so that the light irradiated by the infrared lamp device 300 is concentrated on the pole piece 10 of the roller assembly 200 .

[0063] In some embodiments, the infrared lamp device 300 is connected to the blowing assembly 400. The blowing assembly 400 is arranged opposite to the roller assembly 200 so that the blowing assembly 400 can blow air to the pole piece 10 on the roller assembly 200, blowing the heat emitted by the infrared lamp device 300 to the pole piece 10, thereby drying the pole piece 10.

[0064] It should be noted that the infrared radiation is generated by the infrared lamp device 300 and then directly irradiated on the pole piece of the pole piece base tape of the roller assembly 200. Therefore, according to the penetration characteristics of the infrared radiation, a thermal effect can be formed simultaneously on the interior and surface of the pole piece, so as to achieve the effect of synchronous evaporation of moisture on the interior and surface of the pole piece, thereby making the internal and external drying of the pole piece more balanced, thereby reducing the risks of curling of the pole piece edges, drying cracking, etc., which is conducive to improving the quality of the pole piece. In the process of the blowing assembly 400 blowing air on the pole piece 10, the heat emitted from the surrounding of the infrared lamp device 300 can be blown to the pole piece 10, thereby improving the drying efficiency of the pole piece.

[0065] In some embodiments, the drying device includes a sliding member 510 and a locking member 520. The sliding member 510 is connected to the blowing assembly 400. The sliding member 510 is provided with a sliding hole. The support assembly 100 is passed through the sliding hole so that the sliding member 510 can be slidably set on the support assembly 100. The locking member 520 is passed through the sliding member 510 and can lock the diameter of the sliding hole to lock the sliding member 510 from sliding relative to the support assembly 100. Through the cooperation of the sliding member 510 and the locking member 520, the height of the infrared lamp device 300 can be adjusted, and then the distance between the infrared lamp device 300 and the pole piece 10 on the roller assembly 200 can be adjusted, thereby adjusting the degree of drying of the pole piece 10 by the infrared lamp device 300.

[0066] like Figure 2As shown, in some embodiments, the drying device further includes a first light shielding plate 610. The first light shielding plate 610 is slidably disposed at one end of the blowing assembly 400 and is located between the infrared lamp device 300 and the roller assembly 200. The first light shielding plate 610 is used to block the light from the infrared lamp device 300 from irradiating the pole piece 10 on the roller assembly 200.

[0067] The drying device also includes a second light shielding plate 620. The second light shielding plate 620 is slidably disposed at the other end of the blowing assembly 400 and is located between the infrared lamp device 300 and the roller assembly 200. The second light shielding plate 620 is used to block the light from the infrared lamp device 300 from irradiating the pole piece 10 on the roller assembly 200.

[0068] It should be noted that, in the vertical direction, the blowing assembly 400 and the infrared lamp device 300 are arranged opposite to the roller assembly 200. By sliding the first light shielding plate 610 and the second light shielding plate 620, the parts of the electrode 10 that do not need to be dried are shielded. After one drying, only the middle area of ​​the battery electrode 10 needs to be dried. The first light shielding plate 610 and the second light shielding plate 620 can block the infrared lamp device 300 from irradiating the two ends of the roller assembly 200. That is, the first light shielding plate 610 and the second light shielding plate 620 can block the infrared lamp device 300 from irradiating the edges of the electrode 10, preventing further drying of the edges on both sides of the electrode 10, maintaining the same dryness of the edges of the electrode 10 and the middle area, overcoming the defects of warping or cracking of the edges of the electrode 10, solving the safety problems of powder loss, short circuit and lithium deposition in the battery cell caused by cracked electrode 10, and improving the qualified rate of the product.

[0069] Specifically, the blowing assembly 400 is disposed above the roller assembly 200. The blowing assembly 400 blows air to the pole piece 10 of the roller assembly 200 from top to bottom.

[0070] In some embodiments, the blowing assembly 400 is provided with an air inlet 410 and an air cavity 420 . The air cavity 420 is communicated with the air inlet 410 , respectively, and external air can enter the air cavity 420 through the air inlet 410 .

[0071] Specifically, the air inlet 410 may be provided at the top of the blowing assembly 400. The air inlet 410 may be a circular through hole.

[0072] In some embodiments, the blowing assembly 400 further includes a connecting pipe 430. One end of the connecting pipe 430 is connected to the air inlet 410, and the other end is used to communicate with an external blower. External air enters the connecting pipe 430 through the blower and enters the air chamber 420 from the connecting pipe 430 through the air inlet 410. The connecting pipe 430 may have an L-shaped structure.

[0073] It should be noted that the drying device is open-type and does not need to be located within a closed drying chamber. This bypasses the traditional box-type circulating hot air structure, ensuring that the drying of the electrode 10 is not affected by the pressure differential generated by factors such as the fan frequency, air valve, and air humidity within the box. Traditional box-type structures draw fresh air from the environment outside the box, which is affected by factors such as ambient air moisture and seasonal temperature and humidity fluctuations, resulting in inconsistent baking results. The drying device reduces the influencing factors such as hot air volume, wind speed, and environmental factors.

[0074] like Figure 4 and Figure 5 As shown, in some embodiments, the blowing assembly 400 further includes a first air outlet 440. The first air outlet 440 is in communication with the air cavity 420. The first air outlet 440 is disposed toward the roller assembly 200. Air within the air cavity 420 passes through the first air outlet 440 and is blown toward the pole piece 10 on the roller assembly 200, directing heat emitted by the infrared lamp device 300 toward the pole piece 10, thereby drying the pole piece 10.

[0075] Specifically, the first air outlet 440 may be a circular through hole.

[0076] Specifically, a plurality of first air outlet holes 440 are provided. The plurality of air outlet holes can increase the air volume blowing toward the electrode piece 10 and improve the drying efficiency of the electrode piece 10.

[0077] In some embodiments, the blower assembly 400 further includes a second air outlet 450. The second air outlet 450 communicates with the air cavity 420 and is positioned toward the infrared lamp device 300. External air can enter the air cavity 420 through the air inlet 410 and be blown toward the infrared lamp device 300 through the second air outlet 450. When the infrared lamp device 300 is in operation, it radiates heat, thereby increasing the temperature of the infrared lamp device 300 and its surroundings. Excessive temperature of the infrared lamp device 300 can damage the structure of the infrared lamp device 300, such as causing it to rupture. Air within the air cavity 420 is blown toward the infrared lamp device 300 through the second air outlet 450, dissipating the heat from the infrared lamp device 300 and its surroundings, reducing its temperature and preventing it from rupturing due to excessive heat.

[0078] Specifically, the second air outlet 450 may be a circular through hole.

[0079] Specifically, a plurality of second air outlet holes 450 are provided. The air in the air cavity 420 blows toward the infrared lamp device 300 through the plurality of second air outlet holes 450, which can accelerate the heat dissipation rate of the infrared lamp device 300 and quickly reduce the temperature of the infrared lamp device 300.

[0080] In some embodiments, the air blowing assembly 400 includes a first plate 460 and a second plate 470. The first plate 460 and the second plate 470 enclose an air cavity 420. The second plate 470 is located closer to the infrared lamp device 300 than the first plate 460. The air inlet 410 is disposed on the first plate 460. The first air outlet 440 and the second air outlet 450 are both disposed on the second plate 470. Specifically, the first plate 460 and the second plate 470 are generally U-shaped plates.

[0081] like Figure 5 As shown, in some embodiments, the second plate 470 includes a main plate 471, a first side plate 472, and a second side plate 473. The first side plate 472 is disposed on one side of the main plate 471, and the second side plate 473 is disposed on the other side of the main plate 471. The main plate 471 defines a groove. The infrared lamp device 300 is disposed within the groove. The main plate 471 defines a first air outlet 440. The first side plate 472 and the second side plate 473 both define a second air outlet 450.

[0082] Specifically, the plurality of first air outlet holes 440 are arranged at intervals along the length direction of the main board body 471 .

[0083] Specifically, the plurality of second air outlet holes 450 are spaced apart along the length direction of the first side plate 472 and the second side plate 473 .

[0084] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drying device for battery pole pieces, characterized in that: include: Support components; A roller assembly, the roller assembly is rotatably disposed on the support assembly, and the roller assembly is used to convey the pole piece; an infrared lamp device, the infrared lamp device being slidably disposed on the support assembly and being disposed opposite to the roller assembly so as to enable the infrared lamp device to illuminate the pole piece on the roller assembly; and The blowing assembly is arranged on the supporting assembly, the blowing assembly is arranged opposite to the infrared lamp device, and the blowing assembly is arranged opposite to the roller assembly, so that the blowing assembly can blow air to the pole piece on the roller assembly.

2. The drying device according to claim 1, characterized in that: The blowing assembly is provided with an air inlet, an air cavity and a first air outlet. The air cavity is respectively connected to the air inlet and the first air outlet. The first air outlet is arranged toward the roller assembly. External air can enter the air cavity through the air inlet and be blown toward the pole piece on the roller assembly through the first air outlet.

3. The drying device according to claim 2, characterized in that: The blowing assembly also includes a second air outlet, which is connected to the air cavity and is arranged toward the infrared lamp device. External air can enter the air cavity through the air inlet and be blown toward the infrared lamp device through the second air outlet.

4. The drying device according to claim 3, characterized in that: The blowing assembly includes a first plate and a second plate, the first plate and the second plate enclose the wind cavity, the second plate is close to the infrared lamp device relative to the first plate, the air inlet is arranged on the first plate, and the first air outlet and the second air outlet are both arranged on the second plate.

5. The drying device according to claim 4, characterized in that: The second plate body includes a main plate body, a first side plate and a second side plate, the first side plate is arranged on one side of the main plate body, and the second side plate is arranged on the other side of the main plate body, the main plate body forms a groove, and the infrared lamp device is arranged in the groove, the main plate body is provided with the first air outlet, and the first side plate and the second side plate are both provided with the second air outlet.

6. The drying device according to claim 5, characterized in that: There are multiple first air outlet holes, and the multiple first air outlet holes are arranged along the length direction of the main board; and / or There are multiple second air outlet holes, and the multiple second air outlet holes are respectively arranged along the length direction of the first side plate and the second side plate.

7. The drying device according to claim 1, characterized in that: The drying device further includes a first light shielding plate, the infrared lamp device is provided on the blowing assembly, the first light shielding plate is slidably provided at one end of the blowing assembly, and the first light shielding plate is located between the infrared lamp device and the roller assembly, and the first light shielding plate is used to block the light from the infrared lamp device irradiating the pole piece on the roller assembly; and / or The drying device also includes a second light shielding plate, which is slidably arranged at the other end of the blowing assembly, and the second light shielding plate is located between the infrared lamp device and the roller assembly. The second light shielding plate is used to block the light from the infrared lamp device to the pole piece on the roller assembly.

8. The drying device according to claim 1, characterized in that The drying device includes a sliding member and a locking member. The sliding member is connected to the blowing assembly. The sliding member is provided with a sliding hole. The supporting assembly is passed through the sliding hole so that the sliding member can be slidably set on the supporting assembly. The locking member is passed through the sliding member and can lock the diameter of the sliding hole to lock the sliding member from sliding relative to the supporting assembly.

9. The drying device according to claim 1, characterized in that: The support assembly includes a first support frame and a second support frame, the infrared lamp device and the blowing assembly are arranged on the first support frame, the first support frame and the second support frame are both provided in plurality, the plurality of first support frames and the plurality of second support frames are arranged in sequence at intervals, and the height of the first support frame is higher than the height of the second support frame.

10. The drying device according to claim 1, characterized in that: The drying device also includes a base and multiple adjusting parts. The supporting assembly is arranged on the side of the base, and the multiple adjusting parts are arranged on the other side of the base away from the supporting assembly. The multiple adjusting parts are arranged at intervals at the edge of the base. The multiple adjusting parts can adjust the height of the base so that the base is on a horizontal plane.

11. A drying device, characterized in that: A drying device for battery pole pieces comprising an oven and any one of claims 1 to 10, wherein the oven is connected to the drying device, and the drying device performs secondary drying on the battery pole pieces output from the oven.

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