Sucking disc and battery piece adsorption device

Abstract

The utility model discloses a sucker and a battery piece adsorption device.The sucker comprises a sucker body and an adsorption plate, the inner ring part of the sucker body is provided with first air holes connected with an air supply device, the outer ring part of the sucker body penetrates through the edge in the first direction and is provided with a plurality of first flow guide grooves formed around the center of the inner ring part at intervals, and the first flow guide grooves communicate with the first air holes; at least part of the inner ring part extends into the hollow part of the adsorption plate, the outer ring part is provided with first protruding parts, the first protruding parts are provided with first adsorption holes which correspond to and communicate with the first flow guide grooves, and the outer ring part is divided into a plurality of adsorption areas by the first protruding parts; and each adsorption area is connected with the outer ring part in an involution manner to form a negative pressure cavity and is provided with a plurality of second adsorption holes communicated with the first adsorption holes. According to the technical scheme, stress concentration can be avoided when the suction cup adsorbs the battery piece, the probability that the battery piece is broken or broken during adsorption can be reduced, and adverse effects caused by falling of fragments of the battery piece in the movement process of the suction cup are reduced.

Description

Technical Field

[0001] This application relates to the technical field of battery manufacturing, and particularly to a suction cup and a battery sheet adsorption device. Background Art

[0002] During the production process of battery sheets, wafer picking is often involved. Usually, a suction cup uses the input compressed air to form a special flow direction inside the suction cup, so that the compressed air forms a high-speed backflow between the suction cup and the wafer, driving the air between the suction cup and the wafer to move outwards, creating a negative pressure between the suction cup and the wafer, and then adsorbing the battery sheet; then, a small amount of air is introduced between the suction cup and the wafer through a pressure relief valve to restore the normal pressure state to release the wafer. During the picking process, the suction cup needs to maintain a negative pressure state all the time to adsorb the wafer for movement. Currently, a diversion groove is used to make the compressed air form a flow direction change inside the suction cup. At this time, the wafer is adsorbed on the suction cup only by the negative pressure generated by the small-area diversion grooves on the suction cup, and the stress is concentrated at the position of the diversion grooves. When the quality of the wafer is poor, such as having hidden cracks, scratches or fractures, due to stress concentration, the wafer is prone to breakage or fragmentation, making it impossible for the suction cup to completely take the wafer away from the conveyor line, or the wafer fragments fall during the movement of the suction cup, causing damage to the conveyor line; at the same time, the fragmented wafers are also likely to affect adjacent wafers and cause defects. Manual cleaning later not only consumes manpower but also affects the automation efficiency of the machine. Summary of the Utility Model

[0003] The embodiments of this application disclose a suction cup and a battery sheet adsorption device, which can avoid stress concentration when the suction cup adsorbs the battery sheet, is beneficial to reducing the probability of the battery sheet breaking or fragmenting during adsorption, and reducing the adverse effects caused by the falling of battery sheet fragments during the movement of the suction cup.

[0004] To achieve the above object, in a first aspect, the embodiments of this application disclose a suction cup, including:

[0005] A disk body, the disk body has an inner ring part and an outer ring part disposed around the inner ring part. The inner ring part is provided with a first air hole, and the first air hole is configured to connect to a gas supply device. The outer ring part is provided with a plurality of first diversion grooves. The first diversion grooves penetrate through the edge of the outer ring part along a first direction. The plurality of first diversion grooves are arranged at intervals around the center of the inner ring part, and the first diversion grooves communicate with the first air hole; and

[0006] Adsorption plate, the adsorption plate includes a hollow part and an outer ring part. The hollow part is arranged corresponding to the inner ring part, and the hollow part is configured to allow at least part of the inner ring part to extend therein. The outer ring part is disposed around the outer periphery of the hollow part, and the outer ring part is joined to the outer ring part in a butted manner. At the position corresponding to the first diversion groove on the outer ring part, there is provided a first protrusion part. Each of the first protrusion parts is provided with a first adsorption hole. The first adsorption hole corresponds to and communicates with the first diversion groove. Two adjacent first protrusion parts divide the outer ring part into a plurality of adsorption areas. Each of the adsorption areas forms a negative pressure cavity with the outer ring part. Each of the adsorption areas is provided with a plurality of second adsorption holes. The second adsorption holes communicate with the first adsorption holes, and both the second adsorption holes and the first adsorption holes are configured to adsorb the component to be adsorbed. The first diversion groove is configured to allow the compressed air injected by the air supply device to flow through;

[0007] Wherein, the first direction is the direction from the side of the outer ring part close to the inner ring part to the edge of the outer ring part.

[0008] As an optional implementation manner, a partition plate is provided in the negative pressure cavity. The partition plate divides the negative pressure cavity into a first sub-cavity and a second sub-cavity. The first sub-cavity and the second sub-cavity are respectively communicated with the adjacent first diversion grooves.

[0009] As an optional implementation manner, a second protrusion part is provided inside the inner ring part. The second protrusion part divides the inner ring part into a plurality of adsorption grooves. The adsorption grooves communicate with the first diversion grooves, and the adsorption grooves are configured to adsorb the component to be adsorbed.

[0010] As an optional implementation manner, a notch part is provided on the outer ring part. The notch part is located at the position of the first protrusion part close to the edge of the outer ring part. The notch part penetrates through both sides of the first protrusion part along the second direction. The notch part is configured to communicate two adjacent negative pressure cavities of the first diversion groove, and the notch part communicates with the first diversion groove;

[0011] Wherein, the second direction forms an angle with the first direction.

[0012] As an optional implementation manner, a second diversion groove is further provided on the first protrusion part corresponding to the first diversion groove. The second diversion groove extends along the first direction and penetrates through the edge of the outer ring part. The first adsorption hole is arranged in the second diversion groove. The notch part penetrates through the second diversion groove along the second direction.

[0013] As an alternative embodiment, the adsorption plate further includes a Laval tube. The axis of the Laval tube is arranged along the first direction. The Laval tube is arranged on the first protrusion, and the Laval tube is located on one side of the first adsorption hole close to the edge of the outer ring portion. The Laval tube is configured to accelerate the compressed air in the first diversion groove.

[0014] As an alternative embodiment, an air cavity and a plurality of diversion channels are provided in the inner ring portion. The air cavity is communicated with the first air hole, the plurality of diversion channels are communicated with the air cavity, the plurality of diversion channels penetrate through the edge of the inner ring portion along the first direction, the plurality of diversion channels are arranged at intervals around the center of the inner ring portion, the plurality of diversion channels correspond to the plurality of first diversion grooves one by one, and the diversion channels are communicated with the first diversion grooves.

[0015] As an alternative embodiment, along the edge of the inner ring portion, the outer ring portion has a diversion surface close to the inner ring portion. The diversion surface is located on the outer periphery of the inner ring portion and forms an adsorption ring with the outer peripheral surface of the inner ring portion. The adsorption ring is communicated with the diversion channels, and the first diversion groove is communicated with the adsorption ring.

[0016] As an alternative embodiment, the suction cup further includes an air inlet pipe. The air inlet pipe is arranged in the first air hole. One end of the air inlet pipe is connected to the air supply device, a baffle is arranged at the other end of the air inlet pipe, an air guide port is formed on the side surface of the air inlet pipe close to the baffle, and the air guide port is communicated with the first diversion groove;

[0017] and / or,

[0018] The first adsorption hole is configured to have a length direction, the length direction is arranged along the first direction, the second adsorption hole is set as a pinhole, and the pinholes are arranged at intervals in the adsorption area.

[0019] In a first aspect, the present application also discloses a battery cell adsorption device, and the battery cell adsorption device includes the suction cup as described in the first aspect above.

[0020] Compared with the prior art, the beneficial effects of the present application are:

[0021] The suction cup provided by the embodiment of the present application, since the first convex part is provided with first adsorption holes, the adjacent two first convex parts divide the outer ring part into multiple adsorption areas, each adsorption area forms a negative pressure cavity with the outer ring part, and multiple second adsorption holes are provided on each adsorption area, and the first adsorption holes and the second adsorption holes are both communicated with the first diversion groove. In this way, when the suction cup adsorbs the component to be adsorbed, after the compressed air is injected into the suction cup through the first air hole, the compressed air flows rapidly in the first diversion groove, driving the air in the negative pressure cavity to be discharged. At this time, the component to be adsorbed blocks the air from flowing into the negative pressure cavity. Therefore, a negative pressure state is formed at the first adsorption holes and the second adsorption holes to adsorb the component to be adsorbed. Through the first adsorption holes and the second adsorption holes, negative pressure is generated over the entire area of the suction cup to adsorb the component to be adsorbed, avoiding stress concentration when adsorbing the component to be adsorbed and reducing the probability of the component to be adsorbed breaking or crumbling during adsorption; and through the negative pressure cavities formed by the multiple adsorption areas between the two first convex parts and the outer ring part, independent adsorption areas are formed, which can independently adsorb the fragments of the component to be adsorbed, so that the suction cup can take away the component to be adsorbed that has broken or crumbled on the conveyor line. In addition, the component to be adsorbed that crumbles during the movement of the suction cup can be firmly adsorbed, which is beneficial to reducing the adverse effects caused by the fragments of the component to be adsorbed falling during the movement of the suction cup on the conveyor line and the adjacent components to be adsorbed, reducing the frequency of later manual cleaning, and improving the automation efficiency of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 is the overall structural schematic diagram of the suction cup in the related art;

[0024] Figure 2 is the overall structural schematic diagram of the suction cup in the first perspective disclosed in the embodiment of the present application;

[0025] Figure 3 is the overall structural schematic diagram of the suction cup in the second perspective disclosed in the embodiment of the present application;

[0026] Figure 4 is the overall structural schematic diagram of the suction cup in the third perspective disclosed in the embodiment of the present application;

[0027] Figure 5 is the cross-sectional view of the Laval tube disclosed in the embodiment of the present application;

[0028] Figure 6 is Figure 4Cross-sectional view taken along line A-A;

[0029] Figure 7 is Figure 4 Cross-sectional view taken along line B-B;

[0030] Figure 8 is a schematic structural view of the intake pipe disclosed in the embodiment of the present application;

[0031] Figure 9 is a schematic structural diagram of the battery cell adsorption device disclosed in the embodiment of the present application.

[0032] Description of reference numerals:

[0033] 100 - suction cup; 1 - disc body; 11 - inner ring part; 11a - first air hole; 111 - second protrusion part; 112 - adsorption groove; 113 - air cavity; 114 - shunt channel; 115 - pressure relief hole; 12 - outer ring part; 121 - first diversion groove; 2 - adsorption plate; 21 - hollow part; 22 - outer ring part; 221 - first protrusion part; 221a - first adsorption hole; 2212 - second diversion groove; 222 - adsorption area; 222a - second adsorption hole; 223 - partition plate; 224 - notch part; 225 - diversion surface; 225a - adsorption ring; 23 - Laval tube; 3 - intake pipe; 31 - baffle; 32 - air guide port; X - first direction; Y - second direction; M - negative pressure cavity; M1 - first sub-cavity; M2 - second sub-cavity; 200 - battery cell adsorption device. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0035] In the present application, the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "bottom", "inner", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0036] Moreover, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to specific circumstances.

[0037] In addition, the terms "installed", "set up", "provided with", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0039] During the production process of solar cells, wafer picking of silicon wafers is often involved, which is usually carried out by using a suction cup. Specifically: compressed air is input into the suction cup, and a special turning is formed inside the suction cup by the compressed air, so that a high-speed backflow is formed between the suction cup and the silicon wafer by the compressed air, driving the air between the suction cup and the silicon wafer to move outwards, making a negative pressure formed between the suction cup and the silicon wafer, and then adsorbing the solar cell. After that, the suction cup always maintains a negative pressure state to adsorb the silicon wafer for movement. After moving the silicon wafer to a specific position, a small amount of air is introduced between the suction cup and the silicon wafer through a pressure relief valve to restore the normal pressure state to release the silicon wafer.

[0040] In the related art, as Figure 1 shown, a flow guiding groove 312 is provided on the suction cup 300. When adsorbing the silicon wafer, since the suction cup is close to and fits with the silicon wafer, the silicon wafer constrains the air in the flow guiding groove 312, so that the compressed air injected into the suction cup can only flow out through the flow guiding groove 312. This causes the original air in the flow guiding groove 312 to be also carried out of the flow guiding groove 312, so that a negative pressure is generated at the flow guiding groove 312 to adsorb the silicon wafer onto the suction cup. However, through long-term research, the inventor found that when the silicon wafer is adsorbed by the suction cup 300, the silicon wafer is adsorbed on the suction cup only by the negative pressure generated by the small-area flow guiding groove 312 on the suction cup, and the stress is concentrated at the position of the flow guiding groove 312, making the overall stress of the silicon wafer uneven and liable to break or crack. Especially for silicon wafers with poor quality, such as those with hidden cracks, scratches or fractures, due to stress concentration, they are more likely to directly break or crack. Moreover, since the adsorption surface of the suction cup 300 is only at the flow guiding groove, it is difficult to adsorb the silicon wafer fragments, so that the suction cup cannot completely take the silicon wafer away from the conveyor line, or the broken silicon wafer fragments fall off during the movement of the suction cup, causing damage to the conveyor line; at the same time, the broken silicon wafers are also liable to affect the adjacent silicon wafers and cause defects, which need to be cleaned manually later, not only consuming manpower, but also affecting the automation efficiency of the machine.

[0041] In view of this, the embodiment of the present application provides a suction cup. By providing a first adsorption hole and a second adsorption hole, negative pressure is generated over the entire area of the suction cup to adsorb the silicon wafer. In addition, a negative pressure cavity formed by a plurality of adsorption regions between two first protrusions and the outer ring part forms an independent adsorption region, which can avoid the concentration of adsorption stress, reduce the probability of the silicon wafer breaking or chipping during adsorption, and realize the adsorption of silicon wafer fragments, so that the suction cup can take away the broken or chipped silicon wafer from the conveyor line, reduce the frequency of later manual cleaning, and improve the automation efficiency of the machine.

[0042] The technical solution of the present application will be further described below in conjunction with the embodiments and the drawings.

[0043] Please refer to Figures 2 to 4 as shown in Figure 2 Figure 1 is a schematic diagram of the overall structure of the suction cup disclosed in the embodiment of the present application from the first perspective; Figure 3 Figure 2 is a schematic diagram of the overall structure of the suction cup disclosed in the embodiment of the present application from the second perspective;

[0044] Figure 4It is a schematic diagram of the overall structure of the suction cup in the third perspective disclosed in the embodiments of the present application. In a first aspect, the embodiments of the present application disclose a suction cup. The suction cup 100 includes a disk body 1 and a suction plate 2. The disk body 1 has an inner ring portion 11 and an outer ring portion 12 disposed around the inner ring portion 11. The inner ring portion 11 is provided with a first air hole 11a, and the first air hole 11a is configured to connect to a gas supply device. The outer ring portion 12 is provided with a plurality of first diversion grooves 121. The first diversion grooves 121 penetrate through the edge of the outer ring portion 12 along the first direction X. The plurality of first diversion grooves 121 are arranged at intervals around the center of the inner ring portion 11, and the first diversion grooves 121 communicate with the first air hole 11a. The suction plate 2 includes a hollow portion 21 and an outer ring portion 22. The hollow portion 21 is disposed corresponding to the inner ring portion 11, and the hollow portion 21 is configured to allow at least a part of the inner ring portion 11 to extend therein. The outer ring portion 22 is disposed around the outer periphery of the hollow portion 21. The outer ring portion 22 is oppositely connected to the outer ring portion 12. At the position corresponding to the first diversion groove 121 on the outer ring portion 22, a first protrusion 221 is provided. Each first protrusion 221 is provided with a first suction hole 221a. The first suction hole 221a corresponds to and communicates with the first diversion groove 121. Two adjacent first protrusions 221 divide the outer ring portion 22 into a plurality of suction areas 222. Each suction area 222 forms a negative pressure chamber M with the outer ring portion 12. A plurality of second suction holes 222a are provided on each suction area 222. The second suction holes 222a communicate with the first suction holes 221a, and both the second suction holes 222a and the first suction holes 221a are configured to adsorb the component to be adsorbed. The first diversion groove 121 is configured to allow the compressed air injected by the gas supply device to flow through; wherein, the first direction X is the direction from the side of the outer ring portion 12 close to the inner ring portion 11 to the edge of the outer ring portion 12.

[0045] By communicating the first diversion groove 121 with the first air hole 11a, the compressed air injected into the suction cup 100 by the gas supply device can flow rapidly in the first diversion groove 121, so as to drive the air in the first diversion groove 121 and the negative pressure chamber M to be discharged, and a negative pressure state is formed at the first suction holes 221a and the second suction holes 222a of the suction cup 100, thereby adsorbing the component to be adsorbed. In this way, on the one hand, the adsorption area of the suction cup 100 is enlarged through the first suction holes 221a and the second suction holes 222a, so as to disperse the adsorption stress, and effectively reduce the probability of the component to be adsorbed breaking or crumbling during the process of the suction cup adsorbing the component to be adsorbed; on the other hand, the outer ring portion 22 is divided into a plurality of suction areas 222 by a plurality of first protrusions 221, and the plurality of suction areas 222 cooperate with the outer ring portion 12 to form a plurality of negative pressure chambers M capable of independently adsorbing, so that the suction cup can take away the fragments of the component to be adsorbed on the conveyor line from the conveyor line, and during the movement of the suction cup, the crumbling component to be adsorbed can be firmly adsorbed, avoiding the fragments from falling and causing adverse effects on the conveyor line, which is beneficial to reducing the later manual cleaning investment and improving the automation efficiency of the machine.

[0046] Optionally, the component to be adsorbed described above includes a silicon wafer, a wafer, etc., and this embodiment does not limit this.

[0047] As an optional implementation manner, the above-mentioned inner ring part and outer ring part are both circular ring bodies, that is, the inner ring part and the outer ring part are concentrically arranged. Optionally, the above-mentioned inner ring part 11 and outer ring part 12 can be formed separately or integrally formed, and this embodiment does not limit this. Exemplarily, as Figure 2 shown, the inner ring part 11 and the outer ring part 12 are integrally formed, so that not only the connection between the inner ring part 11 and the outer ring part 12 is sealed, but also the assembly of the suction cup 100 is facilitated, and the debugging steps for the sealed connection between the inner ring part 11 and the outer ring part 12 are reduced.

[0048] Optionally, the above-mentioned plurality of first diversion grooves 121 can be set to two or more, for example, they can be set to two, four, six, eight, etc., and this embodiment does not limit this.

[0049] Exemplarily, as Figure 2 shown, the plurality of first diversion grooves 121 are set to eight, and the eight first diversion grooves 121 are arranged at intervals around the center of the inner ring part 11, and the eight first diversion grooves 121 are all communicated with the first air hole 11a. In this way, through the eight first diversion grooves 121, the air in the suction cup 100 can be taken out by the compressed air more quickly through the eight first diversion grooves 121 arranged, so that the suction cup 100 can adsorb the component to be adsorbed more quickly, which is beneficial to improving the adsorption efficiency of the component to be adsorbed and further improving the production efficiency; and, through the eight first protrusions 221 corresponding to the eight first diversion grooves 121, the adsorption area 222 can be divided into more independently adsorbable units, so that the suction cup 100 can adsorb smaller fragments, and further reduce the possibility of the fragments falling off the suction cup 100.

[0050] In some embodiments, a partition plate 223 is provided in the negative pressure chamber M, and the partition plate 223 divides the negative pressure chamber M into a first sub-chamber M1 and a second sub-chamber M2, and the first sub-chamber M1 and the second sub-chamber M2 are respectively communicated with the adjacent first diversion grooves 121. By dividing the negative pressure chamber M into the first sub-chamber M1 and the second sub-chamber M2, the independently adsorbable area is further reduced, so that the suction cup 100 can adsorb smaller fragments, and further reduce the possibility of the fragments falling off the suction cup 100.

[0051] In some embodiments, a second convex portion 111 is provided on the side of the inner ring portion 11 close to the component to be adsorbed. The second convex portion 111 divides the side of the inner ring portion 11 close to the component to be adsorbed into a plurality of adsorption grooves 112. The adsorption grooves 112 communicate with the first diversion groove 121, and the adsorption grooves 112 are configured to adsorb the component to be adsorbed. In this way, through the plurality of adsorption grooves 112, a negative pressure is also generated in the inner ring portion 11 to adsorb the component to be adsorbed. At the same time, each adsorption groove 112 can also form an independent adsorption area, which is beneficial to improving the adsorption effect of the suction cup 100 on the fragments of the component to be adsorbed.

[0052] It can be understood that the above-mentioned plurality of adsorption grooves 112 can be set to two or more, and this embodiment does not limit this. Exemplarily, as Figure 3 , Figure 4 shown, the adsorption grooves 112 are set to two. Two independent adsorption units are formed through the two adsorption grooves 112, which can adsorb the middle position of the component to be adsorbed, so that if the component to be adsorbed is broken, the middle fragments can be adsorbed, so as to improve the adsorption effect of the suction cup 100 on the fragments.

[0053] Please refer to again Figures 2 to 4 , in some embodiments, a notch portion 224 is provided on the outer ring portion 22. The notch portion 224 is located at a position of the first convex portion 221 close to the edge of the outer ring portion 22. The notch portion 224 penetrates through both sides of the first convex portion 221 in the second direction Y. The notch portion 224 is configured to communicate two adjacent negative pressure chambers M of the first diversion groove 121, and the notch portion 224 communicates with the first diversion groove 121, wherein the second direction Y forms an angle with the first direction X. In this way, through the notch portion 224, the negative pressure chambers M on both sides of the first convex portion 221 are communicated with the first diversion groove 121, so that the air in the negative pressure chambers M can be taken out by the compressed air in the first diversion groove 121, so as to generate a negative pressure in the negative pressure chambers M to adsorb the component to be adsorbed; and, the notch portion 224 is provided at a position close to the edge of the outer ring portion 22, so that the air in the negative pressure chambers M can be discharged faster, so as to reach the negative pressure state faster, which is beneficial to improving the adsorption efficiency.

[0054] Optionally, the range of the angle formed by the second direction Y and the first direction X is 30° to 150°. For example, it can be 45°, 60°, 75°, 90°, 105°, 120°, 135°, etc. Exemplarily, as Figure 2 shown, a 90° angle is formed between the second direction Y and the first direction X. In this way, the penetration positions of the notch portion 224 and the two negative pressure chambers M can be set closer to the edge position, so that the air in the negative pressure chambers M can be discharged faster.

[0055] As an alternative embodiment, the first protrusion 221 is further provided with a second diversion groove 2212 corresponding to the first diversion groove 121. The second diversion groove 2212 extends along the first direction X and penetrates through the edge of the outer ring portion 22. The first adsorption hole 221a is disposed in the second diversion groove 2212, and the notch portion 224 penetrates through the second diversion groove 2212 along the second direction Y. The second diversion groove 2212 and the first diversion groove 121 cooperate to form a diversion channel, so that the compressed air injected into the suction cup 100 can flow out of the suction cup 100 more smoothly through the diversion channel, thereby better adsorbing the component to be adsorbed.

[0056] Please refer to Figure 5 , Figure 5 which is a cross-sectional view of the Laval tube disclosed in the embodiment of the present application. In some embodiments, the adsorption plate 2 further includes a Laval tube 23. The axis of the Laval tube 23 is disposed along the first direction X. The Laval tube 23 is disposed on the first protrusion 221, and the Laval tube 23 is located on the side of the first adsorption hole 221a close to the edge of the outer ring portion 22. The Laval tube 23 is configured to accelerate the compressed air in the first diversion groove 121. By means of the Laval tube 23, the compressed air in the first diversion groove 121 is accelerated. In this way, the accelerated compressed air flows through the notch portion 224 provided corresponding to the first diversion groove 121 close to the edge of the outer ring portion 22, and can more quickly drive the air in the negative pressure chambers on both sides of the first diversion groove 121 to flow out of the suction cup 100, further improving the adsorption efficiency of the suction cup 100 and being beneficial to improving the working efficiency of the suction cup 100.

[0057] Please refer to Figure 6 and Figure 7 , Figure 6 which is Figure 4 the cross-sectional view at A-A in Figure 7 which is Figure 4Cross-sectional view taken along line B-B. In some embodiments, the inner ring portion 11 is provided with an air cavity 113 and a plurality of diversion channels 114. The air cavity 113 communicates with the first air hole 11a, and the plurality of diversion channels 114 communicate with the air cavity 113. The plurality of diversion channels 114 penetrate through the edge of the inner ring portion 11 along the first direction X. The plurality of diversion channels 114 are arranged at intervals around the center of the inner ring portion 11. The plurality of diversion channels 114 correspond to the plurality of first diversion grooves 121 one by one, and the diversion channel 114 communicates with the first diversion groove 121. Through the communication of the air cavity 113, the plurality of diversion channels 114 and the first diversion groove 121, the compressed gas is injected from the first air hole 11a and then enters the air cavity 113, flows through the plurality of diversion channels 114 to the plurality of first diversion grooves 121, and then flows out of the suction cup 100 from the first diversion groove 121, thereby realizing a special turn of the compressed gas in the suction cup 100, so that the suction cup 100 generates a negative pressure to adsorb the component to be adsorbed; at the same time, through the air cavity 113 and the plurality of diversion channels 114, the compressed air flowing to each first diversion groove 121 can be made the same, so that the adsorption forces of the adsorption units on the suction cup 100 are equal or approximately equal, avoiding the situation that the component to be adsorbed is damaged due to uneven force caused by different adsorption forces.

[0058] In some embodiments, along the edge of the inner ring portion 11, the outer ring portion 22 has a diversion surface 225 close to the inner ring portion 11. The diversion surface 225 is located on the outer periphery of the inner ring portion 11 and forms an adsorption ring 225a between the outer peripheral surface of the inner ring portion 11. The adsorption ring 225a communicates with the diversion channel 114, and the first diversion groove 121 communicates with the adsorption ring 225a. Through the adsorption ring 225a, on the one hand, the first diversion groove 121 and the diversion channel 114 can be made to communicate, realizing the diversion of the compressed air; on the other hand, the adsorption ring 225a can adsorb the component to be adsorbed, further improving the adsorption effect of the suction cup 100 on the component to be adsorbed.

[0059] Please refer to Figure 8 , Figure 8 which is a schematic structural view of the intake pipe disclosed in the embodiment of the present application. As an alternative embodiment, the suction cup 100 further includes an intake pipe 3. The intake pipe 3 is disposed in the first air hole 11a. One end of the intake pipe 3 is connected to the air supply device, and a baffle 31 is provided at the other end of the intake pipe 3. An air guide port 32 is opened on the side surface of the intake pipe 3 close to the baffle 31, and the air guide port 32 communicates with the first diversion groove 121. In this way, the introduction of the compressed air is realized through the intake pipe 3; at the same time, through the baffle 31 of the intake pipe, when the suction cup 100 adsorbs, the injected compressed air will not directly blow to the surface of the component to be adsorbed, avoiding the compressed air directly blowing away the component to be adsorbed.

[0060] Optionally, the above intake pipe 3 moves along its axial direction. In this way, when releasing the component to be adsorbed, by moving the intake pipe 3 along its axial direction towards the component to be adsorbed, the air guide port 32 is moved between the component to be adsorbed and the inner ring portion 11, so that the compressed air entering the suction cup 100 through the intake pipe 3 can achieve pressure relief of the suction cup 100, so as to release the component to be adsorbed.

[0061] As an alternative embodiment, the first adsorption hole 221a is configured to have a length direction, and the length direction of the first adsorption hole 221a is arranged along the first direction X. The second adsorption hole 222a is arranged as a pinhole, and the pinholes are arranged at intervals in the adsorption area 222. By setting the first adsorption hole 221a into a shape with a length direction, the area of the first adsorption hole 221a can be made larger, so that the air between the suction cup 100 and the component to be adsorbed can be discharged faster through the first adsorption hole 221a, which is beneficial to improving the adsorption effect of the suction cup; at the same time, by setting the second adsorption hole 222a as a pinhole, the adsorption force of the negative pressure chamber M on the component to be adsorbed can be more dispersed, and the stress at each second adsorption hole 222a is smaller, so as to better avoid the component to be adsorbed from cracking or hidden cracking.

[0062] Optionally, the above first adsorption hole 221a is configured to have a shape with a length direction, and the first adsorption hole 221a can be set into a rectangle, an ellipse, a rounded rectangle, etc. This embodiment does not limit this.

[0063] In some embodiments, the outer ring portion 12 is provided with a plurality of pressure relief holes 115. The plurality of pressure relief holes 115 are arranged at intervals around the center of the inner ring portion 11. Each pressure relief hole 115 is respectively communicated with the first diversion groove 121, the first sub-chamber M1 and the second sub-chamber M2. The pressure relief hole 115 is configured to introduce air when the suction cup 100 places the component to be adsorbed. In this way, when the suction cup 100 releases the component to be adsorbed, air is introduced into the first diversion groove 121, the first sub-chamber M1 and the second sub-chamber M2 through the plurality of pressure relief holes 115, so that the air pressure in the first diversion groove 121, the first sub-chamber M1 and the second sub-chamber M2 is restored to normal pressure, thereby realizing the release of the component to be adsorbed by the suction cup 100; at the same time, the plurality of pressure relief holes 115 can realize pressure relief of each adsorption unit at the same time, avoiding damage to the component to be adsorbed due to uniform force on the component to be adsorbed when releasing the component to be adsorbed.

[0064] Please refer to Figure 9 , Figure 9It is a structural schematic diagram of the battery cell adsorption device disclosed in the embodiments of the present application. Second, the present application also discloses a battery cell adsorption device 200, which includes the suction cup 100 as described in the first aspect above. The battery cell adsorption device 200 with the suction cup 100 can also avoid stress concentration when adsorbing the component to be adsorbed, reducing the probability of fracture or fragmentation of the component to be adsorbed during adsorption; and can also firmly hold the component to be adsorbed that has fragmented during the movement of the suction cup, reducing the adverse effects on the conveyor line and adjacent components to be adsorbed caused by the fragments of the component to be adsorbed falling during the movement of the suction cup, reducing the frequency of later manual cleaning and improving the automation efficiency of the machine.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A suction cup, characterized in that, Comprising: A disk body, the disk body having an inner ring portion and an outer ring portion disposed around the inner ring portion. The inner ring portion is provided with a first air hole, the first air hole being configured to connect to a gas supply device. The outer ring portion is provided with a plurality of first flow guiding grooves, the first flow guiding grooves penetrating through the edge of the outer ring portion along a first direction. The plurality of first flow guiding grooves are arranged at intervals around the center of the inner ring portion, and the first flow guiding grooves communicate with the first air hole; And An adsorption plate, the adsorption plate including a hollow portion and an outer ring portion. The hollow portion is disposed corresponding to the inner ring portion, the hollow portion being configured to allow at least part of the inner ring portion to extend therein. The outer ring portion is disposed around the outer periphery of the hollow portion, the outer ring portion being joined to the outer ring portion in an abutting manner. At positions corresponding to the first flow guiding grooves on the outer ring portion, there are provided first protrusions, and each first protrusion is provided with a first adsorption hole, the first adsorption hole corresponding to and communicating with the first flow guiding groove. Two adjacent first protrusions divide the outer ring portion into a plurality of adsorption regions, each adsorption region forming a negative pressure chamber with the outer ring portion. Each adsorption region is provided with a plurality of second adsorption holes, the second adsorption holes communicating with the first adsorption holes, and the second adsorption holes and the first adsorption holes being configured to adsorb a component to be adsorbed. The first flow guiding grooves are configured to allow compressed air injected by the gas supply device to flow therethrough; Wherein, the first direction is the direction from the side of the outer ring portion close to the inner ring portion towards the edge of the outer ring portion.

2. The suction cup according to claim 1, characterized in that, A partition plate is provided in the negative pressure chamber, the partition plate dividing the negative pressure chamber into a first sub-chamber and a second sub-chamber, the first sub-chamber and the second sub-chamber respectively communicating with adjacent first flow guiding grooves.

3. The suction cup according to claim 1, wherein A second protrusion is provided inside the inner ring portion, the second protrusion dividing the inner ring portion into a plurality of adsorption grooves, the adsorption grooves communicating with the first flow guiding grooves, and the adsorption grooves being configured to adsorb the component to be adsorbed.

4. The suction cup according to claim 1, wherein A notch portion is provided on the outer ring portion, the notch portion being located at a position of the first protrusion close to the edge of the outer ring portion, the notch portion penetrating through both sides of the first protrusion along a second direction. The notch portion is configured to communicate two adjacent negative pressure chambers of the first flow guiding grooves, and the notch portion communicates with the first flow guiding grooves; Wherein, the second direction forms an angle with the first direction.

5. The suction cup according to claim 4, wherein The first protrusion is further provided with a second flow guiding groove corresponding to the first flow guiding groove, the second flow guiding groove extending along the first direction and penetrating through the edge of the outer ring portion. The first adsorption hole is disposed in the second flow guiding groove, and the notch portion penetrates through the second flow guiding groove along the second direction.

6. The suction cup according to any one of claims 1-5, characterized in that, The adsorption plate further includes a Laval tube, the axis of the Laval tube being arranged along the first direction. The Laval tube is disposed on the first protrusion, and the Laval tube is located on the side of the first adsorption hole close to the edge of the outer ring portion. The Laval tube is configured to accelerate the compressed air in the first flow guiding grooves.

7. The suction cup according to any one of claims 1-5, characterized in that, The inner ring portion is provided with an air cavity and a plurality of flow splitting channels. The air cavity is communicated with the first air hole. The plurality of flow splitting channels are communicated with the air cavity. The plurality of flow splitting channels penetrate through the edge of the inner ring portion along the first direction. The plurality of flow splitting channels are arranged at intervals around the center of the inner ring portion. The plurality of flow splitting channels correspond to the plurality of first flow guiding grooves one by one, and the flow splitting channels are communicated with the first flow guiding grooves.

8. The suction cup according to claim 7, characterized in that, Along the edge of the inner ring portion, the outer ring portion has a flow guiding surface near the inner ring portion. The flow guiding surface is located on the outer periphery of the inner ring portion and forms an adsorption ring with the outer peripheral surface of the inner ring portion. The adsorption ring is communicated with the flow splitting channels, and the first flow guiding groove is communicated with the adsorption ring.

9. The suction cup according to any one of claims 1-5, characterized in that, The suction cup further includes an air inlet pipe. The air inlet pipe is arranged in the first air hole. One end of the air inlet pipe is connected to the air supply device. A baffle is arranged at the other end of the air inlet pipe. An air guiding port is formed in the side surface of the air inlet pipe near the baffle. The air guiding port is communicated with the first flow guiding groove. and / or The first adsorption hole is configured to have a length direction, and the length direction is arranged along the first direction. The second adsorption hole is configured as a pinhole, and the pinholes are arranged at intervals in the adsorption area.

10. A battery cell adsorption device, characterized in that, Comprising the suction cup according to any one of claims 1-9.

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