Sucker assembly and battery piece transfer equipment
By using a suction cup assembly consisting of multiple separator cylinders and negative pressure adjustment technology, the problem of suction cups leaving marks on the surface of solar cells has been solved, improving the stability and yield of solar cell transfer and reducing production costs.
Patent Information
- Application Number
- CN202520336406.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The suction cups in the existing technology leave marks on the surface of the solar cells, which can damage the cells.
The suction cup assembly, consisting of multiple partition cylinders, uses a combination of negative pressure grooves and negative pressure components to adjust the negative pressure of each partition cylinder to apply pressure evenly, reduce the pressure per unit area, and alleviate the mark.
It improves the stability and yield of the battery cell transfer process, reduces production costs, and enhances the uniformity of contact between the suction cup and the battery cell.
Smart Images
Figure CN223872746U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of battery piece transfer, in particular to a suction cup assembly and a battery piece transfer device. BACKGROUND
[0002] In the production process of a heterojunction solar cell, after a PN junction is made on a battery piece by PECVD (Plasma Enhanced Chemical Vapor Deposition), a suction cup is used to transfer the battery piece. The suction cup is connected with a vacuum generator or a vacuum pump, and is firmly adsorbed on the surface of the battery piece by the principle of negative pressure.
[0003] In the related art, the suction cup includes a single-layer suction cup wall, and an end face of the suction cup wall is in contact with the battery piece. The battery piece is adsorbed and transferred under the action of negative pressure. However, the suction force of the suction cup is large, and the suction cup in the related art is easy to form marks on the surface of the battery piece and damage the battery piece.
[0004] Correspondingly, there is a need in the art for a new technical solution to solve the above problems. UTILITY MODEL CONTENT
[0005] In order to solve at least one of the above problems in the prior art, that is, to solve the problem that the suction force of the suction cup is large, easy to form marks on the surface of the battery piece, and damage the battery piece.
[0006] In a first aspect, the present application provides a suction cup assembly, comprising: a suction cup, comprising a plurality of separation barrels which are sequentially sleeved, a negative pressure groove is formed between adjacent two separation barrels and in at least one of the separation barrels with the smallest diameter; the suction cup comprises opposite adsorption ends and a closed end, one side of the negative pressure groove close to the closed end is sealed, one side of the negative pressure groove close to the adsorption end is open, and the separation barrel comprises a contact end face close to the adsorption end; and a negative pressure assembly, the negative pressure assembly is in one-to-one correspondence with the negative pressure groove and is in communication, so that when the suction cup assembly is adsorbed to the surface of an object and the contact end face is attached to the surface of the object, the negative pressure assembly can provide a negative pressure environment for the corresponding negative pressure groove.
[0007] In some embodiments, the negative pressure groove is formed between adjacent two separation barrels and in the separation barrel with the smallest diameter.
[0008] In some embodiments, the size of the negative pressure in the negative pressure groove is proportional to the area of the contact end face of the separation barrel on the outer periphery of the negative pressure groove; and / or the area of the contact end face gradually increases in the direction from the inside to the outside along the radial direction of the suction cup, and the negative pressure of the negative pressure groove gradually increases.
[0009] In some embodiments, the suction cup further comprises a supporting core located in the partitioning cylinder with the smallest diameter, and the negative pressure groove is formed between the partitioning cylinder with the smallest diameter and the supporting core.
[0010] In some embodiments, the negative pressure assembly comprises: a suction pipe having a first end communicating with the corresponding negative pressure groove and a second end opposite to the first end; a negative pressure source communicating with the second end of the suction pipe; a pressure detecting device for detecting the negative pressure in the negative pressure groove; and a throttle valve arranged in the suction pipe for adjusting the gas flow.
[0011] In some embodiments, the negative pressure source is a suction pump; and / or the suction pipe communicates with the negative pressure groove through a gas pipe quick connector.
[0012] In some embodiments, the pressure detecting device is arranged between the throttle valve and the negative pressure groove; and / or the pressure detecting device is a pressure display table or a pressure sensor.
[0013] In some embodiments, the suction cup is a horn shape, and each of the partitioning cylinders is a circular truncated cone cylinder structure; or the suction cup is a cylinder shape, and each of the partitioning cylinders is a cylindrical cylinder structure.
[0014] In some embodiments, the material of the suction cup is silica gel or rubber.
[0015] In a second aspect, the present application provides a battery piece transfer equipment, which comprises the suction cup assembly according to any one of the above.
[0016] Under the premise of adopting the above technical solution, during the transfer of battery cells, the suction end of the suction cup assembly is attached to the surface of the battery cell, and the contact ends of multiple separator cylinders are all attached to the surface of the battery cell. Furthermore, under the action of the negative pressure assembly, a negative pressure environment is formed within the negative pressure groove, causing the suction cup assembly to adhere to the surface of the battery cell, thereby transferring the battery cell. In related technologies, the suction cup consists of only a single-layer suction cup wall, and the contact area between the single-layer suction cup wall and the battery cell is small. Under a constant negative pressure, the smaller the contact area, the greater the pressure per unit area. Therefore, the pressure per unit area on the contact area between the battery cell and the suction cup is relatively large, and the suction cups in related technologies easily leave marks on the surface of the battery cell. In this solution, the suction cup includes multiple separator cylinders, and the contact ends of multiple separator cylinders are all attached to the surface of the battery cell. This increases the contact area between the suction cup and the battery cell, thereby reducing the pressure per unit area on the battery cell and alleviating the marks formed by the suction cup on the surface of the battery cell. Meanwhile, the negative pressure assembly can independently adjust the negative pressure in each negative pressure groove. Each separator can adjust its internal negative pressure according to actual needs. This ensures that the pressure applied to the surface of the battery cell by the contact end face of each separator is more uniform, and the pressure on the battery cell per unit area is more uniform. This helps to further alleviate the marks formed by the suction cup on the surface of the battery cell, improve the stability during the transfer process, the yield of the battery cell and the production efficiency, and reduce the production cost. Attached Figure Description
[0017] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:
[0018] Figure 1 This is a schematic diagram of an embodiment of the suction cup assembly in this application;
[0019] Figure 2 This is a schematic diagram of the structure of an embodiment of the suction cup in this application;
[0020] Figure 3 yes Figure 2 A schematic diagram of an embodiment of the suction cup from another angle.
[0021] Figure label:
[0022] 100. Suction cup; 101. Divider cylinder; 102. Negative pressure groove; 103. Support core;
[0023] 200. Negative pressure assembly; 201. Inhalation tube; 202. Pressure detection device; 203. Throttling valve; 204. Quick-connect tubing. Detailed Implementation
[0024] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios. Such changes in application scenarios do not deviate from the basic principles of this application and fall within the scope of protection of this application.
[0025] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0026] It should be noted that, in the description of this preferred embodiment, unless otherwise explicitly specified and limited, the terms "connected" and "connected" should be interpreted broadly. For example, they can refer to mechanical connections or electrical connections, direct connections or indirect connections through an intermediate medium, or connections within two components. These should not be construed as limitations on this application. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only, and those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0027] In one aspect, this application provides a suction cup assembly.
[0028] Combination Figure 1 , Figure 2 and Figure 3 As shown, the suction cup assembly provided in this application includes a suction cup 100 and a plurality of negative pressure components 200.
[0029] The suction cup 100 includes a plurality of sequentially nested partition cylinders 101, with a negative pressure groove 102 formed between adjacent partition cylinders 101 and at least one of the partition cylinders 101 with the smallest diameter. The suction cup 100 includes an opposing adsorption end and a closed end. The negative pressure groove 102 is sealed on the side near the closed end and open on the side near the adsorption end. The partition cylinder 101 includes a contact end face near the adsorption end.
[0030] The suction cup 100 includes a plurality of partition cylinders 101 that are sequentially nested together. In other words, the plurality of partition cylinders 101 are sequentially nested together, and the inner diameter of the partition cylinders 101 gradually increases from the inside to the outside.
[0031] The negative pressure component 200 is connected to the negative pressure groove 102 in a one-to-one correspondence, so that when the suction cup component is adsorbed onto the surface of the object and the contact end face of the separator 101 is attached to the surface of the object, the negative pressure component 200 can provide a negative pressure environment for the corresponding negative pressure groove 102. During the use of the suction cup 100, the suction cup 100 is adsorbed onto the surface of the battery cell, the contact end face of the separator 101 abuts against the surface of the battery cell, and the contact end face of the separator 101 applies a certain pressure to the battery cell.
[0032] Under the premise of adopting the above technical solution, when transferring the battery cell, the suction end of the suction cup assembly is attached to the surface of the battery cell, the contact end faces of multiple separators 101 are all attached to the surface of the battery cell, and under the action of the negative pressure assembly 200, a negative pressure environment is formed in the negative pressure groove 102, so that the suction cup assembly is attached to the surface of the battery cell, and then the battery cell is transferred.
[0033] In related technologies, the suction cup consists of only a single-layer suction cup wall. The contact area between the single-layer suction cup wall and the battery cell is small. Under a certain negative pressure, the smaller the contact area, the greater the pressure per unit area. Therefore, the area where the battery cell contacts the suction cup experiences a large pressure per unit area. The suction cup in related technologies can easily leave marks on the surface of the battery cell.
[0034] In this solution, the suction cup 100 includes multiple separator cylinders 101, the contact surfaces of which are all attached to the surface of the battery cell. This increases the contact area between the suction cup 100 and the battery cell, thereby reducing the pressure on the battery cell per unit area and alleviating the marks formed by the suction cup 100 on the battery cell surface. Simultaneously, the negative pressure assembly 200 can independently adjust the negative pressure within each negative pressure groove 102. Each separator cylinder 101 can adjust its internal negative pressure according to actual needs. This ensures that the pressure applied to the battery cell surface by the contact surfaces of each separator cylinder 101 is more uniform, resulting in more even pressure on the battery cell per unit area. This further helps alleviate the marks formed by the suction cup 100 on the battery cell surface, improves stability during transport, increases the yield of battery cells and production efficiency, and reduces production costs.
[0035] "Multiple" refers to two or more.
[0036] It is understandable that the contact surfaces of the multiple separator cylinders 101 are coplanar, which ensures that when the suction cup assembly is adsorbed onto the surface of the object, all the contact surfaces of the separator cylinders 101 are in contact with the surface of the object, ensuring that the pressure applied to the surface of the battery cell by the contact surfaces of each separator cylinder 101 is more uniform.
[0037] In some embodiments, a negative pressure groove is formed between two adjacent partition cylinders and in the partition cylinder with the smallest diameter.
[0038] In some embodiments, the magnitude of the negative pressure in the negative pressure groove 102 is proportional to the area of the contact end face of the separator cylinder on the outer periphery of the negative pressure groove 102. Each negative pressure groove 102 can be independently adjusted in terms of negative pressure, and each separator cylinder 101 can adjust its internal negative pressure according to actual needs. By making the magnitude of the negative pressure in the negative pressure groove 102 proportional to the area of the contact end face corresponding to the negative pressure groove 102, it can be ensured that the pressure applied to the surface of the battery cell by the contact end face of each separator cylinder 101 is more uniform, and the pressure on the battery cell per unit area is more uniform, which is beneficial to further alleviate the marks formed by the suction cup 100 on the surface of the battery cell.
[0039] In some embodiments, along the radial direction from the inside to the outside of the suction cup 100, the area of the contact end face of the separator 101 gradually increases, and the negative pressure of the negative pressure groove 102 gradually increases.
[0040] Along the suction cup 100 from the inside out, the diameter of the separator cylinder 101 increases. With the same thickness of the separator cylinder 101, the area of the contact end face of the separator cylinder 101 increases. Correspondingly, along the suction cup 100 from the inside out, the absolute value of the negative pressure of the multiple negative pressure grooves 102 increases. This ensures that the pressure applied to the surface of the battery cell by the contact end face of each separator cylinder 101 is more uniform, and the pressure on the battery cell per unit area is more uniform, which helps to further alleviate the marks formed by the suction cup 100 on the surface of the battery cell.
[0041] In some embodiments, combined with Figure 2 As shown, the suction cup 100 also includes a support core 103, which is located inside the smallest diameter partition cylinder 101, and a negative pressure groove 102 is formed between the smallest diameter partition cylinder 101 and the support core 103. The support core 103 serves to support and stabilize the suction cup.
[0042] Combination Figure 2 As shown, the suction cup includes three partition cylinders 101 as an example for explanation:
[0043] The three separator cylinders 101 are a first separator cylinder, a second separator cylinder, and a third separator cylinder with increasing diameters, respectively. The support core 103 is located inside the first separator cylinder. The first separator cylinder and the support core 103 together define a first negative pressure groove. The second separator cylinder and the first separator cylinder together define a second negative pressure groove. The third separator cylinder and the second separator cylinder together define a third negative pressure groove.
[0044] In some embodiments, combined with Figure 1As shown, the negative pressure assembly 200 includes an intake pipe 201, a negative pressure source, a pressure detection device 202, and a throttle valve 203.
[0045] The suction pipe 201 has a first end that communicates with the corresponding negative pressure groove 102 and a second end that is opposite to the first end.
[0046] The negative pressure source is connected to the second end of the suction pipe 201. The suction pipe 201 can connect the negative pressure tank 102 to an external negative pressure source to provide the required negative pressure environment for the negative pressure tank 102.
[0047] The pressure detection device 202 is used to detect the magnitude of the negative pressure in the negative pressure groove 102. This ensures that the pressure in the negative pressure groove 102 is maintained within a set range, which helps to guarantee the accuracy and stability of the pressure in the negative pressure groove 102, thereby improving the reliability of the suction cup assembly.
[0048] A throttle valve 203 is installed in the suction pipe 201 and is used to regulate the gas flow rate. The throttle valve 203 regulates the gas flow rate through the suction pipe 201, thereby controlling the negative pressure level within the negative pressure tank 102. By adjusting the opening of the throttle valve 203, precise regulation of the pressure within the negative pressure tank 102 can be achieved. Optionally, the throttle valve 203 can be a solenoid valve or a manual valve, etc., and the type of throttle valve 203 can be flexibly selected according to actual needs.
[0049] When the negative pressure source is activated, air is extracted from the negative pressure tank 102 through the suction pipe 201, creating a negative pressure environment within the tank. The pressure detection device 202 monitors the pressure within the negative pressure tank 102 in real time, ensuring it remains within a set range. Based on feedback from the pressure detection device 202, the gas flow rate through the suction pipe 201 can be adjusted by regulating the opening of the throttle valve 203, thereby precisely controlling the negative pressure level within the negative pressure tank 102. Through the combined use of the pressure detection device 202 and the throttle valve 203, precise control of the negative pressure level within the negative pressure tank 102 can be achieved, ensuring the stability and reliability of the suction cup 100 under different operating conditions.
[0050] The negative pressure assembly 200 can be pre-adjusted, meaning that the pressure of each negative pressure source and the opening of each throttle valve 203 can be determined according to the requirements. In actual use, it is only necessary to monitor the pressure in the negative pressure tank 102 in real time through the pressure detection device 202. If the pressure in the negative pressure tank 102 deviates too much from the preset pressure, the opening of the throttle valve 203 can be adjusted to accurately control the negative pressure level in the negative pressure tank 102.
[0051] In some embodiments, the negative pressure source is an air suction pump. The air suction pump extracts air from the negative pressure tank 102, creating a negative pressure environment within the negative pressure tank 102.
[0052] In some embodiments, combined with Figure 1 As shown, the inhalation tube 201 is connected to the negative pressure tank 102 via a quick-connect endotracheal connector 204. The quick-connect endotracheal connector 204 allows for quick and easy connection and disconnection between the inhalation tube 201 and the negative pressure tank 102. Simultaneously, the quick-connect endotracheal connector 204 has excellent sealing performance, ensuring no gas leakage between the inhalation tube 201 and the negative pressure tank 102 when connected. Furthermore, the connection achieved through the quick-connect endotracheal connector 204 has high stability, maintaining reliable connection even under adverse conditions such as vibration or impact.
[0053] In some embodiments, the pressure detection device 202 is a pressure display gauge or a pressure sensor, which is disposed between the throttle valve 203 and the negative pressure groove 102.
[0054] Both the pressure gauge and the pressure sensor can monitor pressure changes within the negative pressure tank 102 in real time. If the pressure detection device 202 uses a pressure gauge, the operator can directly read the pressure value within the negative pressure tank 102 from the gauge, enabling them to quickly understand the system status and make corresponding adjustments. The pressure sensor converts the detected pressure signal into an electrical signal for use by the control system. Precise adjustment of the throttle valve 203 by the control system allows for precise control of the pressure within the negative pressure tank 102. Placing the pressure detection device 202 between the throttle valve 203 and the negative pressure tank 102 improves the accuracy of negative pressure detection within the tank and facilitates its placement.
[0055] In some embodiments, the suction cup 100 is trumpet-shaped, and each partition cylinder 101 is a frustum-shaped cylinder structure. The trumpet-shaped design makes the suction end of the suction cup have a larger area than the closed end, thereby covering a larger area when in contact with the object surface, which helps to reduce the risk of the suction cup tilting or falling off due to uneven force during the suction process.
[0056] In some embodiments, the suction cup 100 is cylindrical, and each separator 101 is a cylindrical structure. Setting the suction cup 100 to be cylindrical can also achieve the above function, and the shapes of the suction cup 100 and separator 101 can be flexibly set according to actual needs.
[0057] In some embodiments, the suction cup 100 is made of silicone or rubber.
[0058] Silicone is resistant to high and low temperatures, environmentally friendly, harmless, and possesses good elasticity and wear resistance. Rubber offers excellent sealing properties, oil and solvent resistance, relatively low cost, and wide applicability. By making the suction cup 100 material either silicone or rubber, the elasticity of both ensures a tight seal between the suction cup and the object's surface, guaranteeing the suction cup's adsorption effect and mitigating the marks left by the suction cup on the battery cell surface.
[0059] Secondly, this application provides a battery cell transfer device.
[0060] The battery cell transfer device provided in this application includes any of the suction cup assemblies described above.
[0061] Under the premise of adopting the above technical solution, when transferring battery cells, the suction end of the suction cup assembly is attached to the surface of the battery cell, and the contact end faces of multiple separator cylinders 101 are all attached to the surface of the battery cell. Furthermore, under the action of the negative pressure assembly 200, a negative pressure environment is formed within the negative pressure groove 102, causing the suction cup assembly to adhere to the surface of the battery cell, thereby transferring the battery cell. In this solution, the suction cup 100 of the battery cell transfer equipment includes multiple separator cylinders 101, and the contact end faces of the multiple separator cylinders 101 are all attached to the surface of the battery cell. This increases the contact area between the suction cup 100 and the battery cell, thereby reducing the pressure on the battery cell per unit area and alleviating the marks formed by the suction cup 100 on the surface of the battery cell. Meanwhile, the negative pressure assembly 200 can independently adjust the negative pressure in each negative pressure groove 102, and each separator cylinder 101 can adjust its internal negative pressure according to actual needs. This ensures that the pressure applied to the surface of the battery cell by the contact end face of each separator cylinder 101 is more uniform, and the pressure on the battery cell per unit area is more uniform. This helps to further alleviate the marks formed by the suction cup 100 on the surface of the battery cell, improve the stability during the transfer process, the yield rate of the battery cell and the production efficiency, and reduce the production cost.
[0062] The technical solutions of this application have been described in conjunction with the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions resulting from these changes or substitutions will all fall within the scope of protection of this application.
Claims
1. A suction cup assembly, characterized in that, The suction cup assembly includes: A suction cup includes a plurality of sequentially nested partition cylinders, with a negative pressure groove formed between two adjacent partition cylinders and at least one of the partition cylinders with the smallest diameter; the suction cup includes an opposing suction end and a closed end, the negative pressure groove is sealed on the side near the closed end and open on the side near the suction end, and the partition cylinder includes a contact end face near the suction end; and A negative pressure component is provided, which is connected to the negative pressure groove in a one-to-one correspondence, so that when the suction cup component is adsorbed onto the surface of the object and the contact end face is attached to the surface of the object, the negative pressure component can provide a negative pressure environment for the corresponding negative pressure groove.
2. The suction cup assembly according to claim 1, characterized in that, The negative pressure groove is formed between two adjacent partition cylinders and in the partition cylinder with the smallest diameter.
3. The suction cup assembly according to claim 2, characterized in that, The magnitude of the negative pressure within the negative pressure groove is proportional to the area of the contact end face of the separator cylinder on the outer periphery of the negative pressure groove; and / or Along the radial direction of the suction cup from the inside to the outside, the area of the contact end face gradually increases, and the negative pressure of the negative pressure groove gradually increases.
4. The suction cup assembly according to claim 1, characterized in that, The suction cup also includes a support core located inside the smallest diameter separator cylinder, and the negative pressure groove is formed between the smallest diameter separator cylinder and the support core.
5. The suction cup assembly according to claim 1, characterized in that, The negative pressure component includes: The suction tube has a first end communicating with the corresponding negative pressure groove and a second end opposite to the first end; A negative pressure source, which is connected to the second end of the inhalation tube; A pressure detection device is used to detect the magnitude of the negative pressure in the negative pressure tank; A throttle valve, which is located in the intake pipe, is used to regulate the gas flow rate.
6. The suction cup assembly according to claim 5, characterized in that, The negative pressure source is an air pump; and / or the air suction pipe is connected to the negative pressure tank via an air pipe quick connector.
7. The suction cup assembly according to claim 5, characterized in that, The pressure detection device is disposed between the throttle valve and the negative pressure tank; and / or the pressure detection device is a pressure display gauge or a pressure sensor.
8. The suction cup assembly according to any one of claims 1 to 7, characterized in that, The suction cup is trumpet-shaped, and each of the partition cylinders is a frustum-shaped cylindrical structure; or The suction cup is cylindrical, and each of the partition cylinders is a cylindrical structure.
9. The suction cup assembly according to any one of claims 1 to 7, characterized in that, The suction cup is made of silicone or rubber.
10. A battery cell transfer device, characterized in that, The battery cell transfer device includes the suction cup assembly as described in any one of claims 1 to 9.