Air supply device and electrode drying equipment

Abstract

The utility model discloses an air supply device including a hull and an air outlet adjustment component. An air cavity is formed inside the hull. The hull is provided with an air inlet and an air outlet. The air inlet is connected to the air cavity to transport gas through the air cavity. A plurality of air outlets are arranged along a first direction, and each air outlet is connected to the air cavity to output gas. The air outlet adjustment component is arranged at the air outlet, and a blocking member of the air outlet adjustment component is slidably connected to the hull. The air outlet adjustment component includes a blocking state and an open state. In the blocking state, in a projection perpendicular to the surface where the air outlet is located, the projection of the blocking member and the air outlet at least partially overlap; in the open state, in a projection perpendicular to the surface where the air outlet is located, the projection of the blocking member and the air outlet are staggered. The air supply device of the utility model can improve the uniformity of air outlets and improve the uniformity of drying. The pole piece drying equipment with the air supply device also has the above advantages.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to an air supply device and pole piece drying equipment. Background Art

[0002] In the production process of lithium batteries, drying of lithium battery pole pieces is an important link. Its purpose is to remove the solvent in the slurry to avoid excessive moisture inside the battery, which affects the performance of the battery, including capacity decay, increased internal resistance, etc. At the same time, drying can also make the electrode active material more densely stacked on the current collector, increase the density of the electrode, and thus increase the energy density of the battery. Therefore, if the drying is not thorough, it will cause the surface of the electrode sheet to be uneven and rough, and even bubbles and powder loss will occur. This will not only affect the performance and life of the battery, but also increase the scrap rate in the production process, thereby increasing the cost of the battery.

[0003] In actual production, hot air drying technology is often used. Multiple wind knives and an air inlet are set on the hull of the drying equipment. When the electrode is coated and passes through the hull, the air inlet transports gas, the gas moves in the hull, and hot air is blown out from each air outlet to dry the electrode. However, affected by the distance of gas movement, the wind force at the output of each air outlet is different, which leads to uneven drying of the electrode and increases the probability of problems such as cracking and belt breakage of the electrode. In the related art, the drying equipment uses extrusions and elastic hull shells. The size of the air outlet is changed by squeezing the elastic hull shell by the extrusions, and the wind force of each air outlet is adjusted to make the wind force of each air outlet basically consistent. However, the stability of the size of the air outlet adjusted in this way is not high, and thus, the drying uniformity of the drying equipment cannot be guaranteed. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an air supply device, which can improve the problem that the existing drying equipment cannot stably adjust the size of the air outlet and improve the drying uniformity of the drying equipment.

[0005] The utility model also provides a pole piece drying device having the air supply device.

[0006] According to the first aspect of the utility model, the air supply device includes a hull and an air outlet adjustment component, an air cavity is formed inside the hull, the hull is provided with an air inlet, the air inlet is connected to the air cavity, and the air cavity is used to transport gas; the hull is also provided with an air outlet, a plurality of the air outlets are arranged along a first direction, each of the air outlets is connected to the air cavity, and is used to output gas; the air outlet adjustment component is arranged at the air outlet, the air outlet adjustment component includes a blocking member, and the blocking member is movably connected to the hull; wherein, the air outlet adjustment component includes a blocking state and an open state, in the blocking state, in a projection perpendicular to the surface where the air outlet is located, the projection of the blocking member and the air outlet at least partially overlap; in the open state, in a projection perpendicular to the surface where the air outlet is located, the projection of the blocking member and the air outlet are staggered.

[0007] According to the air supply device of the embodiment of the utility model, at least the following beneficial effects are achieved: when the air supply device is used, in the drying process of the coated electrode, the coated electrode is relative to the hull of the air supply device and transported along the arrangement direction of multiple air outlets, and the heated gas is input into the air cavity through the air inlet of the hull, and moves in the air cavity to be output from each air outlet, so that the coated electrode can be dried during transportation, thereby improving the drying efficiency. At the same time, when the heated gas enters the air cavity and is output through the air outlet connected to the air cavity, the wind speed will be attenuated due to the influence of resistance during the flow of the air flow, and it will also be diverted to different air outlets. The speed and gas volume of the heated gas transported to each air outlet are inconsistent, so the air volume of each air outlet is inconsistent. In order to avoid inconsistent air volume at each air outlet, which leads to uneven drying of the electrode after coating, the air outlet regulating component at the air outlet can be adjusted to a blocking state or an open state accordingly. In the blocking state, the blocking member moves relative to the hull until the projection of the blocking member and the air outlet at least partially overlaps in the projection perpendicular to the surface where the air outlet is located, so as to change the air volume of the air outlet, improve the uniformity of the air outlet of each air outlet, ensure the quality of the electrode after drying after coating, and improve the yield. The above-mentioned adjustment method can accurately adjust the degree of blocking of each air outlet by the blocking member to control the air volume of the air outlet, and the structure of the air outlet regulating component is simple and reliable, which helps to stably adjust and maintain the air volume of each air outlet. In addition, the air outlet regulating components of each air outlet can be adjusted according to actual production needs to change the air volume of each air outlet, making it easier and more intuitive to adjust the air volume, thereby improving production efficiency.

[0008] According to some embodiments of the utility model, the air outlet adjustment assembly also includes two swinging members, the two swinging members are parallel to each other and spaced apart along a second direction, the blocking member is extended along the second direction, and each of the swinging members is rotatably connected to the hull and also rotatably connected to the blocking member.

[0009] According to some embodiments of the utility model, two blocking members are provided, the two blocking members are spaced apart along the first direction and extend along the second direction, and the two ends of each blocking member are rotatably connected to the two swinging members respectively; in the open state, in the projection perpendicular to the surface where the air outlet is located, the projections of the edges opposite to each other of the two blocking members along the first direction coincide with the projections of the edges opposite to each other of the air outlet along the first direction.

[0010] According to some embodiments of the utility model, two blocking members are provided, the two blocking members are spaced apart along the first direction and extend along the second direction, and both ends of each blocking member are rotatably connected to the two swinging members respectively; when the swinging member rotates relative to the hull, the two blocking members can approach each other or move away from each other in the first direction.

[0011] According to some embodiments of the present invention, the two blocking members are both rotatably connected to the surface of the swing member facing the air cavity; or, the two blocking members are both rotatably connected to the surface of the swing member facing away from the air cavity.

[0012] According to some embodiments of the utility model, the air supply device includes a connecting member, which is connected to one of the swinging member and the hull, and is rotationally connected to the other of the swinging member and the hull; there is a gap between the swinging member and the hull.

[0013] According to some embodiments of the utility model, two blocking members are provided, and the two blocking members are respectively located on both sides of the connecting member, and the distances between the connection points of the two blocking members and the swinging member and the connecting member are the same.

[0014] According to some embodiments of the utility model, the air supply device includes a connecting piece, the hull is provided with an arc-shaped slide groove, and the arc-shaped slide groove is located at the periphery of the air outlet; the swinging piece is provided with a slider, and the slider has a set distance to the rotational connection between the swinging piece and the hull, and the slider can slide in the arc-shaped slide groove to enable the swinging piece to rotate around the connecting piece.

[0015] According to some embodiments of the utility model, the air inlet is arranged on one side of the hull along the second direction, and the air supply device also includes a partition plate, which is located in the air cavity and is arranged at the air inlet; a plurality of the partition plates are bent along the second direction toward the first direction, and a flow path is defined between adjacent partition plates, and the flow path is used to guide the flow direction of the gas.

[0016] According to the electrode drying equipment of the second aspect embodiment of the utility model, it includes a box body, a heating device and an air supply device of the first aspect embodiment of the utility model, the air supply device is arranged in the box body, the heating device is connected to the air supply device, the heating device includes an output end, and the output end is connected to the air inlet for conveying hot air from the air inlet to the air cavity.

[0017] According to the pole piece drying equipment of the embodiment of the utility model, at least the following beneficial effects are achieved: when the pole piece drying equipment is used, the air supply device is arranged in the box body, and the lithium battery pole piece coating enters the box body from the input end of the equipment. The box body can protect the internal pole piece from being polluted by external pollutants, and at the same time has a certain heat preservation effect, so that the drying temperature is relatively stable. When the pole piece coating is transported to the air supply device, the heating device connected to the air inlet of the air supply device heats the gas and inputs the heated gas into the air cavity. Due to the continuous introduction of the heated gas, the heated gas can quickly fill the air cavity along the first direction and be output from the air outlets of each connected air cavity. It should be noted that the air outlet adjustment component can adjust the size of the air outlet according to demand, and then, can be adjusted according to the air outlet volume of each air outlet, so that the air outlet volume of each air outlet is basically the same, which helps to improve the uniformity and quality of pole piece drying.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the air supply device of an embodiment of the utility model;

[0021] Figure 2 for Figure 1 A partial schematic diagram of the air supply device shown;

[0022] Figure 3 for Figure 1 A top view of the air supply device is shown;

[0023] Figure 4 for Figure 3 A partial enlarged view of the air supply device A is shown;

[0024] Figure 5 for Figure 1 A front view of the air supply device is shown;

[0025] Figure 6 This is a schematic diagram of the open state of the air outlet adjustment component of the embodiment of the utility model;

[0026] Figure 7 for Figure 6 A schematic diagram of the blocking state of the air outlet adjustment component is shown;

[0027] Figure 8 This is a schematic structural diagram of the electrode drying equipment according to the second embodiment of the utility model.

[0028] Reference numerals: pole piece drying equipment 10;

[0029] Air supply device 100;

[0030] Hull 110; air cavity 111; air inlet 112; air outlet 113; arc-shaped slide 114;

[0031] Air outlet adjustment component 120; blocking member 121; swing member 122; slider 1221;

[0032] Spacer 130; Flow path 131;

[0033] Wind knife 140;

[0034] Connector 150;

[0035] Box 200;

[0036] Heating device 300. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] When drying the electrode after coating, hot air drying equipment is often used for drying. After heating, the gas enters through the air inlet 112 of the hot air drying equipment hull 110 and is transported to each air outlet 113 to dry the electrode after coating. However, during the drying process, due to the long hull 110 of the hot air drying equipment, the speed and air volume of the gas transported from the air cavity 111 to each air outlet 113 are inconsistent, which may cause uneven drying of the electrode after coating, causing the electrode after drying to curl or have uneven thickness, affecting the electrical performance of the electrode. In order to ensure the drying quality of the electrode after coating, it is necessary to control the air volume of each air outlet 113 so that the size of each air outlet 113 can be adjusted. At the same time, in order to avoid the instability of the adjustment structure leading to the instability of the air volume of the air outlet 113 after adjustment, affecting the drying quality of the hot air drying equipment, it is necessary to ensure that the adjustment structure is stable and reliable, so as to achieve the uniformity of drying when the hot air drying equipment dries the electrode after coating, meet production requirements, and ensure the drying effect and the quality of the electrode after drying.

[0043] Reference Figures 1 to 7 ,in Figure 3 , Figure 4 and Figure 5It is a perspective view, and the related structures of the air outlet regulating component 120 and the partition plate 130 are the internal structures of the hull. The air supply device 100 of the embodiment of the utility model includes a hull 110 and an air outlet regulating component 120. An air cavity 111 is formed inside the hull 110. The hull 110 is provided with an air inlet 112. The air inlet 112 is connected to the air cavity 111 to transport gas through the air cavity 111. The gas can be heated gas to dry the coated electrode. The hull 110 is also provided with an air outlet 113, and a plurality of air outlets 113 are arranged along a first direction to improve the drying efficiency of the air supply device 100. Each air outlet 113 is connected to the air cavity 111 to output gas and dry the electrode after coating; the air outlet regulating component 120 is arranged at the air outlet 113, and the air outlet regulating component 120 includes a blocking member 121, and the blocking member 121 is movably connected to the hull 110; wherein, the air outlet regulating component 120 includes a blocking state and an open state, wherein in the blocking state, in a projection perpendicular to the surface where the air outlet 113 is located, the projection of the blocking member 121 and the air outlet 113 at least partially overlap, so as to achieve blocking of the air outlet 113 and reduce the air output; in the open state, in a projection perpendicular to the surface where the air outlet 113 is located, the projection of the blocking member 121 and the air outlet 113 are staggered, so that the air outlet 113 is not interfered by the blocking member 121 and the gas is output normally.

[0044] When the air supply device 100 is used, during the drying process of the coated electrode, the coated electrode is transported relative to the hull 110 of the air supply device 100 and along the arrangement direction of the multiple air outlets 113. The heated gas is input into the air cavity 111 through the air inlet 112 of the hull 110, and moves in the air cavity 111 to be output from each air outlet 113, so that the coated electrode can be dried during transportation, thereby improving the drying efficiency. At the same time, during the process of the heated gas entering the air cavity 111 and being output through the air outlet 113 connected to the air cavity 111, the wind speed will be attenuated due to the influence of resistance during the flow of the air flow, and the air will be diverted to different air outlets 113. The speed and gas volume of the heated gas transported to each air outlet 113 are inconsistent, so the air volume of each air outlet 113 is inconsistent. In order to avoid inconsistent air output from each air outlet 113, which results in uneven drying of the electrode after coating, the air outlet adjustment component 120 at the air outlet 113 can be adjusted accordingly to change the size of the air outlet 113 to improve the uniformity of air output from each air outlet 113, ensure the quality of the electrode after drying after coating, and improve the yield.

[0045] When adjusting the vent regulating assembly 120, the blocking member 121 is moved relative to the hull 110. Specifically, when it is necessary to reduce the air volume at the air outlet 113, the vent regulating assembly 120 at the air outlet 113 can be adjusted to a blocking state, that is, the blocking member 121 of the vent regulating assembly 120 moves relative to the hull 110 along a first direction until the projection of the blocking member 121 and the air outlet 113 at least partially overlap in a projection perpendicular to the surface where the air outlet 113 is located, so as to achieve blocking of the air outlet 113. 3. Reduce the air volume; when it is necessary to increase the air volume of the air outlet 113, or to make the air volume of the air outlet 113 as large as possible, the air outlet regulating assembly 120 at the air outlet 113 can be adjusted to an open state, that is, the blocking member 121 of the air outlet regulating assembly 120 moves relative to the hull 110 along the first direction until the projection of the blocking member 121 and the air outlet 113 are staggered in the projection perpendicular to the surface where the air outlet 113 is located, so that the air outlet 113 is not interfered by the blocking member 121, and the output of the heated gas is maximized. This adjustment method can accurately adjust the degree of obstruction of each air outlet 113 by the blocking member 121 to control the air volume of the air outlet 113, and the air outlet regulating assembly 120 has a simple and reliable structure, which is helpful for stable adjustment or maintaining the air volume of each air outlet 113. When it is applied to drying the coated electrode, it can improve the drying uniformity of the coated electrode and ensure the quality of the electrode. Therefore, the air outlet adjustment assembly 120 of each air outlet 113 can be adjusted according to actual production needs to change the air volume of each air outlet 113, making it easier and more intuitive to adjust the air volume, thereby improving production efficiency.

[0046] It should be noted that, in the blocking state, the position of the blocking member 121 can be adjusted again based on the blocking state to adjust the blocking degree of the blocking member 121 to control the air volume of the air outlet 113. Specifically, in the blocking state of the air outlet adjustment assembly 120, the distance that the blocking member 121 of each air outlet adjustment assembly 120 moves relative to the hull 110 along the first direction can be controlled, so that in the projection perpendicular to the surface where each air outlet 113 is located, the overlap degree of the projection of the blocking member 121 and the air outlet 113 is different, and then, the blocking degree of each air outlet 113 is different, so that the air volume of multiple air outlets 113 can be accurately adjusted, thereby improving the drying quality when the air supply device 100 is applied to the drying equipment and improving the production efficiency.

[0047] In combination with the above, the air outlet adjustment component 120 can be used to make the air volume of each air outlet 113 uniform to improve the drying uniformity; or to specifically increase or decrease the air volume of certain air outlets 113 to meet special production needs.

[0048] In addition, the number of air outlets 113 can be set according to production requirements to speed up the drying efficiency of the electrode after coating, thereby matching the production speed of the production line and improving process efficiency.

[0049] In actual use, affected by the movement distance, the flow speed of the heated gas gradually decreases in the direction away from the air inlet 112. In order to allow sufficient gas to be output from the air outlet 113 away from the air inlet 112 so that the air volume of each air outlet 113 is relatively consistent, the air outlet regulating assembly 120 of the air outlet 113 away from the air inlet 112 can be adjusted to an open state, that is, the blocking member 121 of the air outlet regulating assembly 120 moves relative to the hull 110 along the first direction to a projection perpendicular to the surface where the air outlet 113 is located. , the projections of the blocking member 121 and the air outlet 113 are staggered, so that the air outlet 113 is not interfered by the blocking member 121 and the gas in the air cavity 111 is normally output; the air outlet adjustment component 120 of the air outlet 113 near the air inlet 112 is adjusted to a blocking state, that is, the blocking member 121 of the air outlet adjustment component 120 moves relative to the hull 110 along the first direction until in the projection perpendicular to the surface where the air outlet 113 is located, the projections of the blocking member 121 and the air outlet 113 at least partially overlap, so as to block the air outlet 113 and reduce the air output. The above method can ensure that enough heated gas moves in a direction away from the air outlet 113 and is output from the air outlet 113, keep the air output and wind speed of each air outlet 113 basically consistent, improve the drying uniformity and drying efficiency of the electrode after drying and coating, and ensure the quality after drying.

[0050] When the air supply device 100 is applied to a drying device, the coated electrode is transported from the input end to the output end of the drying device and enters the air supply device 100 in the device along a first direction for drying. The air supply device 100 is also applicable to other applications or devices that require controlling the air volume of each air outlet 113.

[0051] Reference Figure 1 , Figure 3 , Figure 6 and Figure 7 In the air supply device 100 of the embodiment of the utility model, the air outlet adjustment assembly 120 further includes two swinging members 122, the two swinging members 122 are parallel to each other and spaced apart along the second direction, the blocking member 121 is extended along the second direction, and each swinging member 122 is both rotatably connected to the hull 110 and rotatably connected to the blocking member 121. Thus, the movement of the blocking member 121 along the first direction can drive the two swinging members 122 to rotate in the same direction relative to the hull 110. In other words, when one of the swinging members 122 rotates relative to the hull 110, it can drive the other swinging member 122 connected to the blocking member 121 to rotate synchronously, thereby driving the blocking member 121 to move along the first direction.

[0052] When the air supply device 100 is used, the coated electrode piece is transported relative to the hull 110 of the air supply device 100 and along the arrangement direction of the plurality of air outlets 113. The heated gas is input into the air cavity 111 through the air inlet 112 of the hull 110, and moves in the air cavity 111 to be output from each air outlet 113, so that the coated electrode piece can be dried during transportation, thereby improving the drying efficiency. At the same time, in order to accurately control the air volume of each air outlet 113 to achieve a more efficient drying effect of the coated electrode piece, the air outlet adjustment component 120 at each air outlet 113 can be used to adjust. Specifically, when the air outlet 113 needs to increase the air output or maintain the maximum output state, the air outlet adjustment assembly 120 of the air outlet 113 is switched from a blocking state to an open state, and one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to stably drive the blocking member 121 connected between the two swinging members 122 to move along the first direction, and can prevent the blocking member 121 from shaking during the movement, which affects the adjustment accuracy. The blocking member 121 moves along the first direction until, in a projection perpendicular to the surface of the air outlet 113, the projections of the blocking member 121 and the air outlet 113 are staggered, so that the air outlet 113 is not blocked when outputting the gas in the air cavity 111; when the air outlet 113 needs to reduce the air output, the air outlet adjustment assembly 120 of the air outlet 113 is switched from an open state to a blocking state, or the blocking degree of the blocking member 121 in the blocking state is changed, and one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to drive the blocking member 121 connected between the two swinging members 122 to move along the first direction until, in a projection perpendicular to the surface of the air outlet 113, the projections of the blocking member 121 and the air outlet 113 at least partially overlap, or the projection of the blocking member 121 is completely covered by the projection of the air outlet 113, so that the air outlet 113 is blocked by the blocking member 121 when outputting the gas in the air cavity 111, and the air output is reduced.

[0053] Furthermore, according to actual production needs, the air outlet adjustment component 120 of each air outlet 113 can be adjusted to a suitable state to meet the drying uniformity requirements of the electrode after coating; or the air outlet volume of certain air outlets 113 can be changed so that a certain section of the hull 110 outputs more heated gas, so as to dry a certain area of ​​the electrode after coating in a targeted manner.

[0054] Reference Figure 1 , Figure 3 , Figure 6 and Figure 7As an improvement on the above embodiment, two blocking members 121 are provided, the two blocking members 121 are spaced apart along the first direction and extend along the second direction, and the two ends of each blocking member 121 are rotatably connected to the two swinging members 122 respectively; in the open state, in the projection perpendicular to the surface where the air outlet 113 is located, the edge projections of the two blocking members 121 opposite to each other along the first direction coincide with the edge projections of the air outlet 113 opposite to each other along the first direction.

[0055] When the air supply device 100 is used, when the air outlet 113 needs to increase the air volume, or maintain the maximum output state, the air outlet adjustment component 120 of the air outlet 113 can adjust the blocking degree of the air outlet 113 by the blocking member 121 based on the current blocking state, or switch from the blocking state to the open state. Specifically, when maintaining the maximum output state, one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to stably drive the two blocking members 121 to move along the first direction until in the projection perpendicular to the surface of the air outlet 113, the two blocking members 121 are staggered with the projection of the air outlet 113, so that when the air outlet 113 outputs the gas in the air cavity 111, it is not blocked and can maximize the output. When the air outlet 113 needs to reduce the air output, the air outlet adjustment component 120 of the air outlet 113 is switched from the open state to the blocking state, or the blocking degree of the blocking member 121 in the blocking state is changed, one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to drive the two blocking members 121 to move along the first direction until, in the projection perpendicular to the surface of the air outlet 113, the projection of at least one of the two blocking members 121 partially overlaps with the projection of the air outlet 113, or the projection of the blocking member 121 is completely covered by the projection of the air outlet 113, so that the air outlet 113 is blocked by the blocking member 121 when outputting the gas in the air cavity 111, and the air output is reduced.

[0056] Compared with a single blocking member 121 connection structure, the arrangement of the two blocking members 121 is more balanced, more stable, and more reliable to adjust. At the same time, it can also expand the range of the air outlet adjustment component 120 blocking the air outlet 113, that is, expand the adjustment range of the air outlet 113, which helps to improve the adjustment accuracy and overall reliability of the air supply device 100.

[0057] It should be noted that, in the open state, in the projection perpendicular to the surface where the air outlet 113 is located, the projection of the edges of the two blocking members 121 opposite to each other along the first direction coincides with the projection of the edges of the air outlet 113 opposite to each other along the first direction. This structure is applied to the air supply device 100. When adjusting the air outlet adjustment component 120 at the air outlet 113 to switch it from the open state to the blocking state, it is only necessary to slightly adjust the swing member 122 to rotate relative to the hull 110 to drive the two blocking members 121 to move along the first direction, so that in the projection perpendicular to the surface of the air outlet 113, the projection of at least one of the two blocking members 121 coincides with the projection of the air outlet 113, thereby reducing the air volume of the air outlet 113, thereby reducing the air volume of the air outlet 113, and improving the efficiency of the air outlet adjustment component 120 in adjusting the air volume of the air outlet 113 and the production adjustment efficiency.

[0058] Reference Figures 2 to 7 In the air supply device 100 of the embodiment of the utility model, two blocking members 121 are provided, the two blocking members 121 are spaced apart along the first direction and extend along the second direction, and the two ends of each blocking member 121 are rotatably connected to the two swinging members 122 respectively; when the swinging member 122 rotates relative to the hull 110, the two blocking members 121 can approach or move away from each other in the first direction, with higher flexibility, so that the air outlet adjustment component 120 can switch between the blocking state and the open state more efficiently. When the air outlet regulating assembly 120 is adjusted, when it is adjusted from the blocking state to the open state, one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to drive the two blocking members 121 to approach each other along the first direction, until in the projection perpendicular to the surface of the air outlet 113, the two blocking members 121 are staggered with the projection of the air outlet 113, so that when the air outlet 113 outputs the gas in the air cavity 111, it is not blocked and can maximize the output; when the air outlet 113 needs to reduce the air volume, the air outlet regulating assembly 120 of the air outlet 113 is in the open state. When switching to the blocking state, or changing the blocking degree of the blocking member 121 in the blocking state, one of the swinging members 122 can be rotated so that the two swinging members 122 rotate in the same direction relative to the hull 110, so as to drive the two blocking members 121 to move along the first direction, until in the projection perpendicular to the surface of the air outlet 113, the projection of at least one of the two blocking members 121 partially overlaps with the projection of the air outlet 113, or the projection of the blocking member 121 is completely covered by the projection of the air outlet 113, so that the air outlet 113 is blocked by the blocking member 121 when outputting the gas in the air cavity 111, and the air output is reduced. The air outlet adjustment assembly 120 of this structure has a small number of components, a simple structure, reliable connection, and fast switching between the two states, so that the air supply device 100 is more flexible and has a wider range of applications.

[0059] Reference Figure 1 and Figure 6As an improvement of the above embodiment, the two swing members 122 are parallel to each other, have the same length and are spaced apart along the second direction, the two blocking members 121 are parallel to each other, have the same length and are extended along the second direction, and each swing member 122 is rotatably connected to the hull 110 and the blocking member 121, so that the two swing members 122 and the two blocking members 121 form a parallelogram. Similarly, this structure also has the advantages of the above embodiment, and the air outlet adjustment component 120 can accurately control the size of the air outlet by adjusting the angle of the swing member 122, thereby realizing accurate control of the air volume.

[0060] Reference Figures 1 to 3 In the air supply device 100 of the embodiment of the utility model, the two blocking members 121 are both rotatably connected to the surface of the swinging member 122 facing the air cavity 111. In the process of adjusting the air outlet adjustment assembly 120 of each air outlet 113, when switching the blocking state, since the two blocking members 121 are both rotatably connected to the surface of the swinging member 122 facing the air cavity 111, when the two blocking members 121 approach each other along the first direction, the two surfaces of the two blocking members 121 opposite to each other along the first direction can abut against each other, limiting the two blocking members 121 from approaching each other along the first direction, so as to prevent over-adjustment or failure to adjust to the appropriate blocking state, and also facilitate determining the adjustment situation. In some other embodiments, the two blocking members 121 are both rotatably connected to the surface of the swinging member 122 facing away from the air cavity 111. Similarly, this structure also has the advantages of the above-mentioned embodiments.

[0061] It should be noted that the two blocking members 121 are rotatably connected to the surface of the swing member 122 facing the air cavity 111 to avoid interference with the rotational connection between the swing member 122 and the hull 110, which helps to ensure the stability and service life of the adjustment function of the air supply device 100.

[0062] Reference Figures 1 to 3 , Figure 6 and Figure 7 The air supply device 100 of the embodiment of the utility model also includes a connecting member 150, which is connected to one of the swinging member 122 and the hull 110, and is rotationally connected to the other of the swinging member 122 and the hull 110; there is a gap between the swinging member 122 and the hull 110 to reduce the rotational resistance, so that the swinging member 122 rotates more smoothly, and the adjustment efficiency of the air outlet adjustment assembly 120 is improved.

[0063] In the first embodiment, the connecting member 150 is connected to the swinging member 122 and is rotatably connected to the hull 110; there is a gap between the swinging member 122 and the hull 110. During the application of the air supply device 100, when the air volume of the air outlet 113 needs to be adjusted, the connecting member 150 can be rotated to drive the swinging member 122 to rotate relative to the hull 110, and the blocking member 121 moves along the first direction to block the air outlet 113, so as to adjust the air volume of the air outlet 113. Since there is a gap between the swinging member 122 and the hull 110, the swinging member 122 rotates more smoothly relative to the hull 110 and is not easy to get stuck, thereby ensuring the adjustment efficiency of the air outlet adjustment component 120. It should be noted that the connecting member can be a connecting shaft, which can rotate around the axis, and the adjustment accuracy can be improved by setting a scale on the periphery of the connecting member, thereby ensuring the adjustment stability of the air outlet adjustment component 120 and the use effect of the air supply device 100.

[0064] It should be noted that the connecting member 150 can be a connecting shaft, which can rotate around the axis. The adjustment accuracy can be improved by setting a scale on the periphery of the connecting member 150, thereby ensuring the adjustment stability of the air outlet adjustment assembly 120 and the use effect of the air supply device 100.

[0065] In the second embodiment, the connecting member 150 is connected to the swinging member 122 and is rotatably connected to the hull 110; there is a gap between the swinging member 122 and the hull 110. During the use of the air supply device 100, when it is necessary to adjust the air volume of the air outlet 113, the swinging member can be rotated, and the swinging member 122 rotates around the connecting member 150 to drive the blocking member 121 to move along the first direction to achieve blocking of the air outlet 113, so as to adjust the air volume of the air outlet 113. Since there is a gap between the swinging member 122 and the hull 110, the swinging member 122 rotates more smoothly relative to the hull 110 and is not easy to get stuck, thereby ensuring the adjustment efficiency of the air outlet adjustment component 120.

[0066] It should be noted that when the air supply device 100 is installed, the air outlet adjustment component 120 can be arranged in the air cavity 111 relative to the air outlet 113, connected to the hull 110 through the connecting member 150, and the swinging member 122 can rotate around the connecting member 150 to drive the blocking member 121 to move along the first direction. This installation position can prevent external pollutants from contaminating the connection between the swinging member 122 and the blocking member 121, affecting the mutual rotation function of the two and affecting the performance of the air outlet adjustment component 120. At the same time, the overall appearance of the air supply device is more beautiful, which helps the air supply device 100 to set the wind knife 140 at the air outlet 113 so that it is not interfered by the air outlet adjustment component 120 during installation. The wind knife 140 can evenly distribute the heated gas output from the air outlet 113 to improve the drying effect.

[0067] Reference Figures 2 to 7 In the air supply device 100 of the embodiment of the utility model, two blocking members 121 are provided, and the two blocking members 121 are respectively located on both sides of the connecting member 150, and the distances from the connection points of the two blocking members 121 and the swinging member 122 to the connecting member 150 are the same. When adjusting the air outlet adjustment component 120 at the air outlet 113, it is only necessary to slightly adjust the swinging member 122 to rotate relative to the hull 110, so that the two blocking members 121 located on both sides of the connecting member 150 can be driven to move closer to or away from each other along the first direction, and the position of the blocking member 121 can be quickly adjusted, thereby improving the efficiency of switching the state of the air outlet adjustment component 120.

[0068] It should be noted that the distances from the connection points of the two blocking members 121 and the swinging member 122 to the connecting member 150 are the same, which can make the movement of the two blocking members 121 along the first direction relatively consistent, thereby improving the adjustment stability of the air outlet adjustment assembly 120 .

[0069] Reference Figures 1 to 4 In the air supply device 100 of the embodiment of the utility model, the hull 110 is provided with an arc-shaped slide groove 114, and the arc-shaped slide groove 114 is located at the periphery of the air outlet 113; the swinging member 122 is provided with a slider 1221, and there is a set distance between the slider 1221 and the rotation connection between the swinging member 122 and the hull 110, and the slider 1221 can slide in the arc-shaped slide groove 114, so that the swinging member 122 rotates around the connecting member 150. When the air supply device 100 is used, the set distance can be set according to the convenience of the operator or the swing angle of the swinging member 122, so that the swinging member 122 and the hull 110 are kept stably connected while ensuring that the slider 1221 can slide smoothly in the arc-shaped slide groove 114. Moreover, when adjusting the swinging member 122, the normal operation of the air supply device 100 is not interfered, or the operator is allowed to operate away from the air outlet 113, thereby improving safety. When the air volume of the air outlet 113 needs to be adjusted, the operator can rotate the swing member 122 to make the slider 1221 slide in the arc-shaped slide groove 114. Due to the design of the arc-shaped slide groove 114, the slider 1221 will automatically adjust its position as the swing member 122 rotates, thereby driving the swing member 122 to rotate around the connecting member 150, and then the operator can adjust the air volume of the air outlet 113 more quickly and easily to improve the drying quality.

[0070] In addition, the design of the arc-shaped slide groove 114 can also effectively reduce the friction and wear of the slider 1221, thereby improving the service life and stability of the air supply device 100. At the same time, since each swinging member 122 has both a rotational connection and a sliding connection with the hull 110, the structure limits the movement of the swinging member 122 through the movement of the slider 1221 in the arc-shaped slide groove 114, thereby enhancing the overall stability and durability of the air supply device 100.

[0071] Reference Figure 1 and Figure 3 In the air supply device 100 of the embodiment of the utility model, the air inlet 112 is arranged on one side of the hull 110 along the second direction, and the air supply device 100 also includes a partition plate 130, which is located in the air cavity 111 and is arranged at the air inlet 112; multiple partition plates 130 are bent along the second direction toward the first direction, and a flow path 131 is defined between adjacent partition plates 130, and the flow path 131 is used to guide the flow direction of gas.

[0072] When the air supply device 100 is used, during the drying process of the coated electrode, the coated electrode is relative to the hull 110 of the air supply device 100 and is transported along the arrangement direction of the multiple air outlets 113. The heated gas is input into the air cavity 111 through the air inlet 112 arranged on one side of the hull 110 along the second direction. A flow path 131 is defined between adjacent partition plates 130 for circulation. Restricted by the flow path 131, the gas flows along the second direction toward the first direction, so that the gas input from the second direction can be output toward the first direction. Therefore, the gas can quickly fill the air cavity 111 along the first direction to meet the output requirements of each air outlet 113, shorten the time for the gas to flow to the air outlet 113, and improve the drying efficiency.

[0073] It should be noted that the plurality of partition plates 130 can limit a plurality of flow paths 131, so that the gas can be uniformly input into the air cavity 111, thereby improving the efficiency of gas transportation. In addition, the arrangement of the air inlet 112 is helpful for the reasonable layout of the air supply device 100 and the gas transmission equipment, or the reasonable layout of the air supply device 100 in the drying equipment, thereby improving the space utilization rate.

[0074] In addition, the partitions and the inner wall of the hull 110 can also limit a flow path 131 to guide the flow of gas so that the gas can be evenly input into the air cavity 111, thereby improving the efficiency of gas transportation.

[0075] Reference Figure 1 and Figure 8 The electrode drying equipment 10 of the second embodiment of the utility model includes a box body 200, a heating device 300 and an air supply device 100 of the first embodiment of the utility model, the air supply device 100 is arranged in the box body 200, the heating device 300 is connected to the air supply device 100, the heating device 300 includes an output end, the output end is connected to the air inlet 112, and is used to transport hot air from the air inlet 112 to the air cavity 111.

[0076] When the electrode drying equipment 10 is used, the air supply device 100 is arranged in the box 200, and the lithium battery electrode coating enters the box 200 from the input end of the equipment. The box 200 can protect the internal electrode from being contaminated by external pollutants, and at the same time has a certain heat preservation effect, so that the drying temperature is relatively stable. When the electrode coating is transported to the air supply device 100, the heating device 300 connected to the air inlet 112 of the air supply device 100 heats the gas and inputs the heated gas into the air cavity 111. Due to the continuous introduction of the heated gas, the heated gas can quickly fill the air cavity 111 along the first direction and output from the air outlets 113 of each connected air cavity 111. It should be noted that the air outlet adjustment component 120 can adjust the size of the air outlet 113 according to demand, and then, it can be adjusted according to the air outlet volume of each air outlet 113, so that the air outlet volume of each air outlet 113 is basically the same, which helps to improve the uniformity and quality of the electrode drying.

[0077] It should be noted that multiple air supply devices 100 can be provided according to production requirements to improve drying efficiency. For example, an air supply device 100 is provided on both sides of the electrode sheet after coating, and the air outlet 113 of the air supply device 100 faces the electrode sheet after coating, and outputs the heated airflow to dry the electrode sheet after coating. This method enables both sides of the electrode sheet after coating to be dried at the same time, with high drying efficiency and good uniformity, which helps to improve the quality of the electrode sheet after drying.

[0078] Reference Figure 1 and Figure 8 The electrode drying device 10 of the embodiment of the utility model includes an air knife 140, which is arranged relative to the air outlet 113. The air knife 140 is provided with multiple sets of exhaust holes, and the exhaust holes can adjust the airflow passing through so that the airflow is output more evenly. The input end of the air knife 140 is connected to the air outlet 113, so as to transport the gas output at the air outlet 113 to the surface of the electrode after coating through the exhaust holes for drying.

[0079] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. An air supply device, characterized in that: include: A hull, wherein an air cavity is formed inside the hull, and the hull is provided with an air inlet, wherein the air inlet is connected to the air cavity, and gas is transported through the air cavity; The hull is also provided with an air outlet, a plurality of the air outlets are arranged along the first direction, and each of the air outlets is connected to the air cavity to output gas; An air outlet regulating component, the air outlet regulating component is arranged at the air outlet, the air outlet regulating component comprises a blocking member, and the blocking member is movably connected to the hull; Wherein, the air outlet adjustment assembly includes a blocking state and an open state, in which, in a projection perpendicular to the surface where the air outlet is located, the projection of the blocking member and the air outlet at least partially overlap; In the open state, in a projection perpendicular to the surface where the air outlet is located, the projections of the blocking member and the air outlet are staggered.

2. The air supply device according to claim 1, characterized in that: The air outlet adjustment assembly also includes two swinging members, which are parallel to each other and spaced apart along the second direction. The blocking member is extended along the second direction. Each of the swinging members is rotatably connected to the hull and is also rotatably connected to the blocking member.

3. The air supply device according to claim 2, characterized in that: There are two blocking members, which are spaced apart along the first direction and extend along the second direction, and two ends of each blocking member are rotatably connected to the two swinging members respectively; In the open state, in a projection perpendicular to the surface where the air outlet is located, the projections of the opposite edges of the two blocking members along the first direction coincide with the projections of the opposite edges of the air outlet along the first direction.

4. The air supply device according to claim 2, characterized in that: There are two blocking members, which are spaced apart along the first direction and extend along the second direction, and two ends of each blocking member are rotatably connected to the two swinging members respectively; When the swinging member rotates relative to the hull, the two blocking members can move closer to each other or farther away from each other in the first direction.

5. The air supply device according to claim 2, characterized in that: The two blocking members are both rotatably connected to the surface of the swing member facing the air cavity; Alternatively, the two blocking members are both rotatably connected to the surface of the swing member on a side facing away from the air cavity.

6. The air supply device according to claim 2, characterized in that: The air supply device comprises a connecting member, which is connected to one of the swinging member and the hull and is rotationally connected to the other of the swinging member and the hull; a gap is provided between the swinging member and the hull.

7. The air supply device according to claim 6, characterized in that: There are two blocking members, which are respectively located at two sides of the connecting member, and the distances between the connection points of the two blocking members and the swinging member and the connecting member are the same.

8. The air supply device according to claim 2, characterized in that: The air supply device includes a connecting piece, the hull is provided with an arc-shaped slide groove, and the arc-shaped slide groove is located at the periphery of the air outlet; the swinging piece is provided with a slider, and the slider has a set distance to the rotating connection between the swinging piece and the hull, and the slider can slide in the arc-shaped slide groove to enable the swinging piece to rotate around the connecting piece.

9. The air supply device according to claim 2, characterized in that: The air inlet is arranged at one side of the hull along the second direction, and the air supply device further comprises a partition plate, which is located in the air cavity and arranged at the air inlet; The plurality of partition plates are bent along the second direction toward the first direction, and a flow path is defined between adjacent partition plates, and the flow path is used to guide the flow direction of the gas.

10. Pole drying equipment, characterized in that: It comprises a box body, a heating device and the air supply device according to any one of claims 1 to 9, wherein the air supply device is arranged in the box body, the heating device is connected to the air supply device, and the heating device comprises an output end, wherein the output end is connected to the air inlet for conveying hot air from the air inlet into the air cavity.

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