Air curtain device and processing equipment for battery piece suitable for air curtain device

Abstract

The application provides a gas curtain device and a processing equipment for battery pieces, and relates to the technical field of battery piece processing. The gas curtain device comprises a channel module, the channel module comprises two channel plates arranged oppositely, the channel plates penetrate through an outer wall plate along a first direction and are fixedly connected with the outer wall plate, the first direction is perpendicular to the outer wall plate, a gap between the two channel plates is suitable for passing the battery pieces, each channel plate is provided with a plurality of penetrating air holes, the air holes on the channel plate close to one end of the other channel plate are closer to a first gap end than the air holes away from the other channel plate, the first gap end is one end of the gap located outside the processing equipment, and the air holes are suitable for introducing a first gas into the gap; a sealing module is fixedly connected with the channel module from the outside of the processing equipment, the sealing module is suitable for sealing the first gap end, wherein the inside of the processing equipment has the first gas, the outside of the processing equipment has a second gas, and the outer wall plate is isolated from the first gas and the second gas through the gas curtain device.

Description

Technical Field

[0001] This application relates primarily to the field of battery cell processing technology, and in particular to an air curtain device and applicable battery cell processing equipment. Background Technology

[0002] In the photovoltaic cell manufacturing process, vacuuming or atmosphere protection is often required when processing solar cells. For example, the grid lines of some cells are printed using silver paste in a screen printing process. However, in recent years, to reduce costs, the industry has been exploring replacing silver paste with copper paste for the grid lines. After printing, the copper paste needs to be cured. During the curing process, the high temperature makes the copper paste more susceptible to reaction with oxygen in the air, thus affecting the cell efficiency. Therefore, it is necessary to isolate oxygen during the curing process.

[0003] Existing vacuuming methods have long cycle times, so a continuous flow of protective gas is generally used in the processing of solar cells to achieve atmosphere protection. However, existing atmosphere protection methods often suffer from high gas exchange rates and low atmosphere maintenance efficiency.

[0004] Therefore, there is an urgent need for a simple and effective air curtain device for atmosphere protection. Utility Model Content

[0005] The technical problem to be solved by this application is to provide an air curtain device and a suitable processing equipment for battery cells, so as to reduce the gas exchange rate and improve the atmosphere maintenance efficiency.

[0006] To address the aforementioned technical problems, this application provides an air curtain device suitable as an inlet or outlet of a battery cell processing equipment. The processing equipment includes an outer wall panel, and the air curtain device includes: a channel module comprising two channel plates arranged opposite each other, the channel plates penetrating the outer wall panel along a first direction and fixedly connected to the outer wall panel, the first direction being perpendicular to the outer wall panel, the gap between the two channel plates being suitable for the passage of a battery cell, each channel plate having multiple through-holes, the end of the channel plate closer to the other channel plate being closer to a first gap end than the end farther from the other channel plate, the first gap end being the end of the gap located outside the processing equipment, the pores being suitable for introducing a first gas into the gap; and a sealing module fixedly connected to the channel module from the outside of the processing equipment, the sealing module being suitable for sealing the first gap end, wherein the interior of the processing equipment contains a first gas, the exterior of the processing equipment contains a second gas, and the outer wall panel is isolated from the first gas and the second gas by the air curtain device.

[0007] Optionally, the two channel plates are an upper channel plate and a lower channel plate, which are arranged sequentially along a second direction, which is perpendicular to the first direction. The flow velocity of the first gas flowing out of the vent of the lower channel plate is greater than the flow velocity of the first gas flowing out of the vent of the upper channel plate.

[0008] Optionally, the length of the gap extending along the first direction ranges from 30mm to 40mm.

[0009] Optionally, the air curtain device further includes: an air source adapted to store a first gas; the channel module further includes: a cavity cover block, the cavity cover block including a cavity with an opening located at the bottom of the cavity cover block, and a cavity through hole extending from the top of the cavity cover block and connected to the cavity; the cavity cover block is fixedly connected to the channel plate, and the opening of the cavity covers each air hole of the channel plate; and an air guiding component, the air guiding component being connected between the cavity through hole and the air source, the air guiding component being adapted to guide the first gas in the air source into the cavity.

[0010] Optionally, the surface of the channel plate that contacts the cavity cover has a first annular groove surrounding each air hole, and the channel module further includes a first sealing ring disposed in the first annular groove, wherein the bottom of the cavity cover is adapted to abut against the first sealing ring.

[0011] Optionally, the gas guiding assembly includes: a gas guiding speed regulating valve, one end of which is connected to the cavity through hole, the gas guiding speed regulating valve being adapted to regulate the flow rate of the first gas flowing into the cavity; and a gas guiding switch valve, the other end of which is connected to the gas guiding speed regulating valve and the gas source, the gas guiding switch valve being adapted to control the flow of the first gas in the gas source into the cavity or to prevent the first gas from flowing into the cavity.

[0012] Optionally, the sealing module includes: a door panel disposed on the side of the channel plate near the first gap end, the sealing module sealing the first gap end through the door panel; and a door panel drive component fixedly connected to the channel plate and the door panel respectively, the door panel drive component being adapted to drive the door panel to seal the first gap end or separate from the first gap end.

[0013] Optionally, the channel module further includes: an annular fixing part connected to the two channel plates, the annular fixing part having a first projection on the outer wall plate along the first direction, the first projection covering the projections of the two channel plates on the outer wall plate along the first direction, the inner edge of the first projection being the outer edge of the projection of the gap on the outer wall plate along the first direction, the annular fixing part being adapted to abut against the outer wall plate, the surface of the annular fixing part abutting against the outer wall plate having a second annular groove surrounding the gap; and a second sealing ring disposed in the second annular groove.

[0014] Optionally, the outer wall panel and the annular fixing part have a plurality of corresponding airtight fastening holes, and the channel module further includes a plurality of threaded fasteners adapted to pass through the corresponding airtight fastening holes on the outer wall panel and the annular fixing part so that the annular fixing part abuts against the outer wall panel.

[0015] Optionally, the threaded fastener includes: a screw adapted to pass through an airtight fastening hole; a threaded seal adapted to be fitted onto the screw and abut against the outer wall plate; and a nut adapted to be fitted onto the screw and abut against the annular fixing portion.

[0016] To solve the above-mentioned technical problems, this application provides a processing equipment for battery cells. The processing equipment is suitable for processing battery cells and includes: an outer wall panel; the aforementioned air curtain device is disposed on the outer wall panel. The air curtain device is suitable as an inlet or outlet of the processing equipment. The processing equipment has a first gas inside and a second gas outside. The outer wall panel isolates the first gas and the second gas through the air curtain device.

[0017] Optionally, it further includes: a first transmission device disposed outside the processing equipment and close to the air curtain device; and a second transmission device disposed inside the processing equipment and close to the air curtain device; wherein the first transmission device and the second transmission device are configured to transmit the battery cells located outside the processing equipment to the inside of the processing equipment after passing through the air curtain device, or to transmit the battery cells located inside the processing equipment to the outside of the processing equipment after passing through the air curtain device.

[0018] Optionally, the first transmission device includes: a first transmission belt adapted to support and transmit the battery cells; and a first positioning sensor adapted to detect whether the battery cells on the first transmission belt have reached a first preset position; the second transmission device includes: a second transmission belt adapted to support and transmit the battery cells; and a second positioning sensor adapted to detect whether the battery cells on the second transmission belt have reached a second preset position.

[0019] Optionally, the processing equipment is suitable for processing different types of solar cells, wherein the different types of solar cells have different cell lengths and cell widths, and each solar cell moves along a transmission direction on a first transmission belt and a second transmission belt, the transmission direction being the extension direction of the length or the extension direction of the width; the first transmission device and / or the second transmission device further include: multiple types of sensors, each type of sensor being suitable for detecting different types of solar cells.

[0020] Optionally, the type sensor is adapted to generate a detection signal after detecting a corresponding type of battery cell, the sealing module includes a sealing controller, and the processing equipment further includes a host computer, which is adapted to send a sealing control signal to the sealing controller based on the received detection signal.

[0021] Compared with the prior art, this application has the following advantages: the gap formed by the gap between the two channel plates is suitable for the passage of the battery cell, and the air holes provided on the channel plates can introduce a first gas into the gap and make the first gas flow to the end of the gap where the battery cell enters the gap, i.e., the first gap end, thereby preventing the second gas outside the processing equipment from entering the interior of the processing equipment through the gap; the first gap end is further sealed by the sealing module, thereby preventing the second gas from entering the contents of the processing equipment when the battery cell does not pass through the gap. Attached Figure Description

[0022] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings:

[0023] Figure 1 This is a partial structural schematic diagram of a processing device according to an embodiment of this application;

[0024] Figure 2 yes Figure 1 A cross-sectional schematic diagram of the outer wall panel, part of the channel module and part of the sealed module formed by the plane along the first direction x-x' and the second direction z-z';

[0025] Figure 3 yes Figure 2 Schematic diagram of the structure of the central channel plate and the annular fixing part;

[0026] Figure 4 yes Figure 2 A front view of the central channel module and the airtight module; and

[0027] Figure 5 yes Figure 4 A partial side view of the central channel module and the airtight module. Detailed Implementation

[0028] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0029] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0031] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0032] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0033] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.

[0034] It should be understood that when a component is referred to as "on another component," "connected to another component," "coupled to another component," or "in contact with another component," it can be directly on, connected to, coupled to, or in contact with that other component, or there may be an intervening component. In contrast, when a component is referred to as "directly on another component," "directly connected to," "directly coupled to," or "directly in contact with" another component, there is no intervening component. Similarly, when a first component is referred to as "electrically contacting" or "electrically coupled to" a second component, there is an electrical path between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even if there is no direct contact between the conductive components.

[0035] Figure 1 This is a partial structural schematic diagram of a battery cell processing apparatus 100 according to an embodiment of this application. The processing apparatus 100 is suitable for processing battery cells, such as performing a curing process on the battery cells. In this embodiment, the processing apparatus 100 has a first gas inside and a second gas outside. Specifically, in this embodiment, the first gas is nitrogen and the second gas is air. It is understood that the first gas and the second gas are different, but this application does not limit the types of the first gas and the second gas. In some embodiments, the first gas includes one or more gases selected from nitrogen, argon, and carbon dioxide, and the second gas includes oxygen, etc. Figure 1 As shown, the processing equipment 100 includes an outer wall panel 11, an air curtain device 12, a first transmission device 13, a second transmission device 14, and a host computer (not shown in the figure). In this embodiment, the outer wall panel 11 isolates the first gas and the second gas through the air curtain device 12, that is, the outer wall panel 11 forms a sealed space, the interior of the sealed space is the interior of the processing equipment 100, and the exterior of the sealed space is the exterior of the processing equipment 100. It should be noted that... Figure 1The space located on the side of the outer wall panel 11 in the x direction is the interior of the processing equipment 100, and the space located on the side of the outer wall panel 11 in the x' direction is the exterior of the processing equipment 100. It is understood that in this embodiment, the air curtain device 12 is disposed on the outer wall panel 11, and the air curtain device 12 is suitable as an inlet of the processing equipment 100, that is, the battery cells can enter the interior of the processing equipment 100 through the air curtain device 12. It should be noted that this application does not limit the air curtain device to being either an inlet or outlet of the processing equipment; that is, in some embodiments, the air curtain device can be used as an outlet of the processing equipment, allowing the battery cells to leave the interior of the processing equipment 100 through the air curtain device 12. Furthermore, the processing equipment 100 in this embodiment includes multiple outer wall panels 11, thereby completely surrounding the interior of the processing equipment 100. Correspondingly, Figure 1 Only one outer wall panel 11 equipped with an air curtain device 12 is shown as an example.

[0036] Continue to refer to Figure 1 and Figure 2 The air curtain device 12 includes a channel module 21, a sealing module 22, and an air source (not shown in the figure). The channel module 21 includes two channel plates 211, an annular fixing part 212, a second sealing ring 213, a threaded fastener 214, a cavity cover block 215, a first sealing ring 216, and an air guiding assembly 217. In this embodiment, the two channel plates 211 respectively penetrate the outer wall plate 11 along the first direction x'-x and are fixedly connected to the outer wall plate 11, wherein the first direction x-x' is perpendicular to the outer wall plate 11, that is, in this embodiment, the outer wall plate 11 extends along the second direction z-z' and the direction y-y'. The gap 51 between the two channel plates 211 is suitable for the passage of the battery cell. Further, in this embodiment, the length of the gap 51 extending along the first direction x-x' is in the range of 30mm to 40mm. It can be understood that in this embodiment, the length of the gap 51 extending along the direction y-y' is adjusted accordingly based on the size of the battery cell that needs to pass through. In addition, the length of the gap 51 extending along the second direction z-z' is in the range of 6mm to 8mm. The above arrangement creates a narrow, elongated gap 51. Each channel plate 211 has multiple through-holes 52. The end of the channel plate 211 with the vent 52 closest to another channel plate 211 is closer to the first gap end 511 than the end farther from another channel plate 211. The first gap end 511 is the end of the gap 51 located outside the processing equipment 100, i.e. Figure 2 The left end of the middle. Correspondingly, Figure 2 In this embodiment, the vent 52 extends obliquely from the outer side of the channel plate 211 toward the first gap end 511, that is, it extends obliquely along the direction x'. The vent 52 is adapted to introduce a first gas into the gap 51.

[0037] Understandably, when the battery cell enters the gap 51, the two ends of the gap 51 are respectively the second gas and the first gas. Since the battery cell moves towards the interior of the processing equipment 100 in direction x, the second gas is carried into the gap 51 by the battery cell. Therefore, in this embodiment, the gap 51 is designed as a long and narrow shape, which allows the second gas to take longer to enter the interior of the processing equipment 100 and reduces the amount of second gas entering the gap 51. Furthermore, in this embodiment, the first gas is introduced into the gap 51 through the vent 52 to form an air curtain, which then pushes the second gas out of the gap 51 back to the outside of the processing equipment 100. Furthermore, the first gas discharged through the vent 52 is inclined towards the first gap end 511, which further reduces the Bernoulli effect and increases the efficiency of the air curtain in reducing the content of the second gas in the gap, thereby effectively isolating the gas interaction between the inside and outside of the processing equipment 100 when the battery cell enters and exits the processing equipment 100.

[0038] Continue to refer to Figure 2 Two channel plates 211 are designated as the upper and lower channel plates, respectively, and are arranged sequentially along the second direction z-z'. Specifically, Figure 2 The channel plate 211 closer to the z-direction is the upper channel plate, and the channel plate 211 closer to the z'-direction is the lower channel plate. In this embodiment, the z'-direction is the direction of gravity. Furthermore, in this embodiment, the flow velocity of the first gas exiting from the vent 52 of the lower channel plate is greater than the flow velocity of the first gas exiting from the vent 52 of the upper channel plate. Through the above arrangement, in this embodiment, when the battery cell passes through the gap 51, it is supported by the force of the first gas exiting from the vent 52 of the lower channel plate, thus avoiding contact with the channel plate 211, and effectively reducing the risk of the battery cell's surface being scratched or bumped when passing through the gap 51. It should be noted that, referring to... Figure 3 In this embodiment, the two channel plates 211 are integrally formed, thereby creating a gap 51. However, this application does not limit the way the gap 51 is formed. In other embodiments, the two channel plates 211 can be connected to each other by a connector to form a gap suitable for the passage of the battery cell.

[0039] Continue to refer to Figure 2In this embodiment, the annular fixing part 212 is connected to two channel plates 211. The annular fixing part 212 has a first projection on the outer wall plate 11 along the first direction x-x', and the first projection covers the projections of the two channel plates 211 along the first direction x-x' on the outer wall plate 11. The inner edge of the first projection is the outer edge of the projection of the gap 51 along the first direction x-x' on the outer wall plate 11. The annular fixing part 212 is adapted to abut against the outer wall plate 11, and the surface of the annular fixing part 212 abutting against the outer wall plate 11 has a second annular groove 53 surrounding the gap 51. A second sealing ring 213 is provided in each second annular groove 53. Further refer to Figure 3 The outer wall panel 11 and the annular fixing part 212 have corresponding multiple airtight fastening holes 54. It should be noted that... Figure 3 Only the airtight fastening hole 54 of the annular fixing part 212 is shown as an example. Figure 2 and Figure 3 The airtight fastening holes 54 of the outer wall panel 11 are not shown. (Continue referring to...) Figure 2 and Figure 3 The threaded fastener 214 is adapted to pass through the corresponding airtight fastening holes 54 on the outer wall plate 11 and the annular fixing part 212, so that the annular fixing part 212 abuts against the outer wall plate 11. The threaded fastener 214 includes a screw 551, a threaded sealing ring 552, and a nut 553. The screw 551 is adapted to pass through the airtight fastening hole 54. The threaded sealing ring 552 is adapted to be fitted onto the screw 551 and abuts against the outer wall plate 11. The nut 553 is adapted to be fitted onto the screw 551 and abuts against the annular fixing part 212. It can be understood that in this embodiment, the second sealing ring 213 can prevent the second gas and the first gas from interacting through the opening on the outer wall plate for placing the channel module 21, and the threaded sealing ring 552 can prevent the second gas and the first gas from interacting through the airtight fastening hole 54, thereby improving the airtightness of the processing equipment 100.

[0040] Continue to refer to Figure 2 and Figure 3 The cavity cover 215 includes a cavity 56 with its opening located at the bottom of the cavity cover 215 and a cavity through hole (not shown in the figure) extending from the top of the cavity cover 215 through the cavity cover and connected to the cavity. The cavity cover 215 is fixedly connected to the channel plate 211, and the opening of the cavity 56 covers each of the air holes 52 of the channel plate 211. In this embodiment, the surface of the channel plate 211 that contacts the cavity cover 215 has a first annular groove 57 surrounding each of the air holes 52. A first sealing ring 216 is provided in the first annular groove 57, wherein the bottom of the cavity cover 215 is adapted to abut against the first sealing ring 216, thereby improving the airtightness of the joint between the cavity cover 215 and the channel plate 211. In this embodiment, the cavity cover 215 and the channel plate 211 have a plurality of corresponding fastening holes, thereby fixing the cavity cover 215 and the channel plate 211 together with screws.

[0041] Continue to refer to Figure 2 , Figure 4 and Figure 5 A gas guiding assembly 217 is connected between the cavity through-hole and the gas source. The gas source is adapted to store a first gas. The gas guiding assembly 217 is adapted to introduce the first gas from the gas source into the cavity 56, and then further flow from the cavity 56 into the air hole 52, thereby entering the gap 51. The gas guiding assembly 217 includes a gas guiding speed regulating valve 581, a gas guiding switching valve 582, and a threaded quick-connect fitting 583. One end of the gas guiding speed regulating valve 581 is connected to the cavity through-hole via the threaded quick-connect fitting 583. The gas guiding speed regulating valve 581 is adapted to regulate the flow rate of the first gas flowing into the cavity 56. The gas guiding switching valve 582 is connected to the other end of the gas guiding speed regulating valve 581 and the gas source. The gas guiding switching valve 582 is adapted to control the flow of the first gas from the gas source into the cavity 56, or to prevent the first gas from flowing into the cavity 56.

[0042] Continue to refer to Figure 1 , Figure 4 and Figure 5 The sealed module 22 is fixedly connected to the channel module 21 outside the processing equipment 100, and the sealed module 22 is suitable for sealing. Figure 2The first gap end 511. Specifically, in this embodiment, the sealing module 22 includes a door panel 221, a door panel drive component 222, a door panel limiting component 223, a guide rail assembly 224, a support component 225, a cylinder fixing plate 226, and a sealing controller (not shown in the figure). The door panel 221 is located on the side of the channel plate 211 near the first gap end 511, and the sealing module 22 seals the first gap end 511 through the door panel 221. Specifically, in this embodiment, the support component 225 is L-shaped, with one end fixedly connected to the channel plate 211 and the other end fixedly connected to the guide rail of the guide rail assembly 224. The slider of the guide rail assembly 224 is fixedly connected to the door panel 221. It can be understood that the two ends of the door panel 221 extending along the direction y-y' respectively have corresponding support components 225 and guide rail assemblies 224, thereby stably and firmly connecting the door panel 221 with the channel plate 211, thereby improving the airtightness between the door panel 221 and the channel plate 211. The door panel drive component 222 is fixedly connected to the channel plate 211 and the door panel 221 respectively. The door panel drive component 222 is adapted to drive the door panel 221 to seal the first gap end 511 or to separate from the first gap end 511. In this embodiment, the door panel drive component 222 includes a needle cylinder. One end of the needle cylinder is fixedly connected to the upper channel plate through the cylinder fixing plate 226, and the other end of the needle cylinder is fixedly connected to the door panel 221. The needle cylinder is adapted to drive the door panel 221 to move along the second direction z-z', thereby sealing the first gap end 511. It should be noted that in this embodiment, the door panel 221 is normally closed to prevent the first gas and the second gas inside and outside the processing equipment 100 from interacting through the gap 51. The sealing controller operates the door panel drive component 222 according to the received signal. It should be noted that the sealing controller is a commercially available controller.

[0043] Continue to refer to Figure 1The first transmission device 13 is disposed outside the processing equipment 100 and near the air curtain device 12. Specifically, the first transmission device 13 includes a first transmission belt 131, a first positioning sensor 132, and three types of sensors 133. The first transmission belt 131 is adapted to support and transmit the battery cells. The first positioning sensor 132 is disposed below the first transmission belt 131 and is adapted to detect whether the battery cell on the first transmission belt 131 has reached a first preset position. The three types of sensors 133 are sequentially disposed around the first transmission belt 131 along the direction y-y'. In this embodiment, the processing equipment 100 is adapted to process three different types of battery cells, wherein the different types of battery cells have different battery cell lengths and battery cell widths, and each battery cell moves along the transmission direction x on the first and second transmission belts. In this embodiment, the transmission direction is the extension direction of the length of the battery cell, but this application does not limit the transmission direction. In some embodiments, the transmission direction is the extension direction of the width of the battery cell, that is, multiple battery cells on the first transmission belt are placed sequentially along the extension direction of the width. The various types of sensors 133 are adapted to detect different types of battery cells. Specifically, since each battery cell has a different length and width, the relative positions of various types of sensors 133 and the first conveyor belt 131 are set so that each type of sensor 133 can generate a detection signal when the corresponding battery cell passes by. For example, for the battery cell with the shortest length and width, only one type of sensor 133 generates a detection signal; for the battery cell with the longest length and width, all three types of sensors 133 generate detection signals. Further, in this embodiment, the detection signals generated by the type sensors 133 are sent to a host computer, which is adapted to send a sealing control signal to the sealing controller based on the received detection signals. It can be understood that in this embodiment, the host computer sends a sealing control signal to the sealing controller based on the signals from the type sensors 133 and the first positioning sensor 132, thereby accurately controlling the sealing. Figure 4 The timing of the lifting of door panel 221 and the first gas from Figure 2 The timing of outflow from pore 52.

[0044] Continue to refer to Figure 1The second transmission device 14 is located inside the processing equipment 100 and close to the air curtain device 12. The second transmission device 14 includes a second transmission belt 141 and a second positioning sensor (not shown in the figure). The second transmission belt 141 is adapted to support and transmit the battery cells. The second positioning sensor is located below the second transmission belt 141 and is adapted to detect whether the battery cells on the second transmission belt 141 have reached a second preset position. In this embodiment, the signal fed back by the second positioning sensor can confirm whether the battery cells have passed smoothly through the air curtain device 12, thereby promptly detecting possible battery cell transmission failures and improving the reliability of the battery cell transmission process. In this embodiment, the first transmission device 13 and the second transmission device 14 are configured to transmit battery cells located outside the processing equipment 100 to the inside of the processing equipment 100 after passing through the air curtain device 12; that is, both the first transmission device 13 and the second transmission device 14 transmit battery cells along the x-direction. It should be noted that this application does not limit the transmission direction of the first and second transmission devices or the placement of the type of sensors. In some embodiments, the first and second transmission devices are configured to transmit battery cells located inside the processing equipment to the outside of the processing equipment after passing through the air curtain device. Accordingly, in these embodiments, the type sensor is arranged around the second conveyor belt.

[0045] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0046] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0047] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.

[0048] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of scope in some embodiments of this application are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0049] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.

Claims

1. An air curtain device, characterized in that, The air curtain device is suitable as an inlet or outlet of a battery cell processing equipment, the processing equipment including an outer wall panel, and the air curtain device comprising: A channel module includes two channel plates arranged opposite each other. Each channel plate penetrates the outer wall plate along a first direction perpendicular to the outer wall plate. A gap between the two channel plates is suitable for the passage of the battery cell. Each channel plate has multiple through-holes. The end of each through-hole on the channel plate closer to the other channel plate is closer to a first gap end than the end farther from the other channel plate. The first gap end is the end of the gap located outside the processing equipment. The through-holes are suitable for introducing a first gas into the gap. A sealing module is fixedly connected to the channel module from the outside of the processing equipment, and the sealing module is adapted to seal the first gap end. The processing equipment contains the first gas inside and the second gas outside, and the outer wall panel isolates the first gas and the second gas through the air curtain device.

2. The air curtain device as described in claim 1, characterized in that, The two channel plates are an upper channel plate and a lower channel plate, which are arranged sequentially along a second direction, which is perpendicular to the first direction. The flow velocity of the first gas flowing out of the vent of the lower channel plate is greater than the flow velocity of the first gas flowing out of the vent of the upper channel plate.

3. The air curtain device as described in claim 1, characterized in that, The length of the gap extending along the first direction ranges from 30mm to 40mm.

4. The air curtain device as described in claim 1, characterized in that, The air curtain device also includes: A gas source, wherein the gas source is adapted to store the first gas, The channel module also includes: A cavity cover block, comprising a cavity with an opening at the bottom of the cavity cover block, and a cavity through-hole extending from the top of the cavity cover block and connecting to the cavity; the cavity cover block is fixedly connected to the channel plate, and the opening of the cavity covers each of the air holes of the channel plate; and A gas guiding assembly is connected between the cavity through-hole and the gas source, and the gas guiding assembly is adapted to introduce the first gas in the gas source into the cavity.

5. The air curtain device as described in claim 4, characterized in that, The surface of the channel plate that contacts the cavity cover has a first annular groove surrounding each of the air holes. The channel module further includes a first sealing ring disposed within the first annular groove, wherein the bottom of the cavity cover block is adapted to abut against the first sealing ring.

6. The air curtain device as described in claim 4, characterized in that, The air guiding assembly includes: A gas flow rate regulating valve, one end of which is connected to the cavity through-hole, the gas flow rate regulating valve being adapted to regulate the flow rate of the first gas flowing into the cavity; and A gas-guided switching valve is connected to the other end of the gas-guided speed regulating valve and the gas source. The gas-guided switching valve is adapted to control the flow of the first gas in the gas source into the cavity or to prevent the first gas from flowing into the cavity.

7. The air curtain device as claimed in claim 1, characterized in that, The sealed module includes: A door panel is disposed on the side of the channel plate near the first gap end, and the sealing module seals the first gap end through the door panel; A door panel drive component is fixedly connected to the channel plate and the door panel respectively. The door panel drive component is adapted to drive the door panel to seal the first gap end or separate from the first gap end.

8. The air curtain device as claimed in claim 1, characterized in that, The channel module also includes: An annular fixing part is connected to the two channel plates. The annular fixing part has a first projection on the outer wall plate along the first direction. The first projection covers the projections of the two channel plates on the outer wall plate along the first direction. The inner edge of the first projection is the outer edge of the projection of the gap on the outer wall plate along the first direction. The annular fixing part is adapted to abut against the outer wall plate. The surface of the annular fixing part that abuts against the outer wall plate has a second annular groove surrounding the gap. The second sealing ring is disposed in the second annular groove.

9. The air curtain device as described in claim 8, characterized in that, The outer wall panel and the annular fixing part have corresponding multiple airtight fastening holes, and the channel module further includes: Multiple threaded fasteners, the threaded fasteners being adapted to pass through the corresponding airtight fastening holes on the outer wall plate and the annular fixing portion, so that the annular fixing portion abuts against the outer wall plate.

10. The air curtain device as claimed in claim 9, characterized in that, The threaded fasteners include: Screws, the screws being adapted to pass through the airtight fastening hole; A threaded sealing ring, which is adapted to be fitted onto the screw and abut against the outer wall plate; A nut, which is adapted to be fitted onto the screw and abuts against the annular fixing part.

11. A processing apparatus for solar cells, characterized in that, The processing equipment is suitable for processing battery cells, and the processing equipment includes: Exterior wall panels; The air curtain device as described in any one of claims 1-10 is disposed on the outer wall panel, and the air curtain device is adapted to serve as the inlet or outlet of the processing equipment. The processing equipment has a first gas inside and a second gas outside, and the outer wall panel isolates the first gas and the second gas through the air curtain device.

12. The battery cell processing equipment as described in claim 11, characterized in that, Also includes: A first transmission device is disposed outside the processing equipment and close to the air curtain device; The second transmission device is located inside the processing equipment and close to the air curtain device; The first and second transmission devices are configured to either transmit the battery cells located outside the processing equipment to the inside of the processing equipment via the air curtain device, or transmit the battery cells located inside the processing equipment to the outside of the processing equipment via the air curtain device.

13. The battery cell processing equipment as described in claim 12, characterized in that, The first transmission device includes: A first conveyor belt, adapted to support and transport the battery cells; A first positioning sensor is adapted to detect whether the battery cell on the first conveyor belt has reached a first preset position. The second transmission device includes: A second conveyor belt, adapted to support and transport the battery cells; A second positioning sensor is adapted to detect whether the battery cell on the second conveyor belt has reached a second preset position.

14. The battery cell processing equipment as described in claim 13, characterized in that, The processing equipment is suitable for processing different types of battery cells, wherein the different types of battery cells have different battery cell lengths and battery cell widths, and each of the battery cells moves along the transmission direction on the first transmission belt and the second transmission belt, wherein the transmission direction is the extension direction of the length or the extension direction of the width. The first transmission device and / or the second transmission device further include: Multiple types of sensors, each of which is adapted to detect different types of the battery cells.

15. The battery cell processing equipment as described in claim 14, characterized in that, The sensor of this type is adapted to generate a detection signal after detecting the corresponding type of battery cell, and the hermetic module includes a hermetic controller. The processing equipment also includes: The host computer is adapted to send a sealing control signal to the sealing controller based on the received detection signal.

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