Battery piece conveying device and battery piece sintering system

Abstract

This utility model discloses a battery cell transport device and a battery cell sintering system. The first transport component includes multiple first transport members and a first conveyor chain spaced apart along a second direction. The first transport chain drives the first transport members to move along the second direction. The second transport component includes multiple second transport members and a second conveyor chain spaced apart along the second direction. Corresponding second transport members and first transport members are spaced apart along a first direction. The second transport chain drives the second transport members to move along the second direction. Support members are provided on the sides of the first and second transport members that are close to each other. Two support members located on the same straight line along the first direction are used to support the same battery cell. In this way, when the battery cell transport device transports the battery cell, the lower part of the battery cell is hollowed out, which reduces the obstruction of the bottom surface of the battery cell by the transport device, thereby avoiding poor sintering of the battery cell.

Description

Technical Field

[0001] This application relates to the field of solar cell production equipment technology, and in particular to a solar cell transport device and a solar cell sintering system. Background Technology

[0002] After the screen printing process, the solar cells need to be sent into the sintering furnace by a conveyor device for sintering, so that the solar cells and the printed electrodes can form good ohmic contact, thereby forming the positive and negative electrodes of the solar cell.

[0003] In related technologies, the transmission device is usually composed of a whole mesh belt. The solar cells are placed on the mesh belt and enter the sintering furnace for sintering. However, when this whole mesh belt carries the solar cells into the sintering furnace, it will block the heat source under the solar cells, resulting in uneven heating of the solar cells and poor sintering of the solar cells. Utility Model Content

[0004] This utility model discloses a battery cell conveying device and a battery cell sintering system, which can improve the heating uniformity of battery cells in the sintering furnace, thereby avoiding poor sintering of battery cells.

[0005] To achieve the above objectives, the first aspect of this utility model discloses a battery cell transport device, comprising:

[0006] A first conveying assembly includes a first conveying chain and a plurality of first conveying elements connected to the first conveying chain. The first conveying elements extend along a first direction, and the plurality of first conveying elements are spaced apart along a second direction. The first conveying chain extends along the second direction, and the first conveying chain is configured to drive the first conveying elements to move along the second direction.

[0007] The second conveying component includes a second conveying chain and a plurality of second conveying elements connected to the second conveying chain. The second conveying elements extend along the first direction, and the plurality of second conveying elements are spaced apart along the second direction. The number of second conveying elements is the same as that of the first conveying elements, and the corresponding second conveying elements and the first conveying elements are spaced apart along the first direction. The second conveying chain extends along the second direction and is configured to drive the second conveying elements to move along the second direction.

[0008] Multiple support members are provided, the support members being configured to support battery cells. The first conveyor and the second conveyor are each provided with the support members, and the support members are disposed on the side of the first conveyor and the second conveyor that is close to each other, so that two support members located on the same straight line along the first direction are used to carry the same battery cell.

[0009] As an optional implementation, the first conveyor chain includes two chains, which are spaced apart along the first direction, and a plurality of first conveying components are simultaneously connected to the two first conveyor chains.

[0010] As an optional implementation, the first conveying member has a first end and a second end along the first direction, wherein one of the first conveying chains is connected to the first end along the first direction, the support member is disposed at the second end, and another first conveying chain is located between the support member and one of the first conveying chains.

[0011] As an optional implementation, the driving mechanism includes a driving component, a driving shaft, and two transmission wheels. One end of the driving shaft is connected to the driving component, and both transmission wheels are sleeved on the driving shaft. The two first transmission chains are respectively connected to the two transmission wheels.

[0012] The driving component is used to drive the drive shaft to rotate so that the two first transmission chains move synchronously along the second direction.

[0013] As an optional implementation, the two drive wheels of the first transmission component and the two drive wheels of the second transmission component are both sleeved on the drive shaft, so that when the drive member drives the drive shaft to rotate, it can drive the two first transmission chains and the two second transmission chains to move synchronously.

[0014] As an optional implementation, both the first and second conveying components have perforated holes.

[0015] As an optional implementation, the first conveyor and the second conveyor are provided with a plurality of the hollow holes, and at least some of the hollow holes are positioned on the first conveyor and / or the second conveyor corresponding to the support member.

[0016] As an optional implementation, the perforation includes a first sub-perforation and a second sub-perforation, wherein the first sub-perforation is positioned on the first conveying member and / or the second conveying member corresponding to the position of the support member.

[0017] Both the first sub-hole and the second sub-hole are elongated holes extending along the first direction, and along the first direction, the opening length of the first sub-hole is less than the opening length of the second sub-hole.

[0018] Secondly, this utility model also discloses a solar cell sintering system, including a sintering furnace and a solar cell conveying device as described in the first aspect above, wherein the solar cell conveying device is disposed in the sintering furnace along the second direction.

[0019] As an optional implementation, the inner wall of the sintering furnace is provided with a heating source, and the heating source is arranged around the inner wall of the sintering furnace in a circle, and the heating source is configured to heat the battery cell.

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

[0021] This utility model provides a battery cell transport device and a battery cell sintering system. A first transport assembly includes multiple first transport members and a first transport chain spaced apart along a second direction, so that the first transport members are moved along the second direction via the first transport chain. A second transport assembly includes multiple second transport members and a second transport chain spaced apart along the second direction. The number of second transport members is the same as the number of first transport members, and corresponding second transport members and first transport members are spaced apart along a first direction, so that the second transport members are moved along the second direction via the second transport chain. Both the first and second transport members are provided with support members, and the support members are positioned on the side of the first and second transport members close to each other, so that two support members located on the same straight line along the first direction can support the same battery cell. When the cell conveying device carries the cells into the sintering furnace for sintering, the cells are supported by the support members located on the first and second conveying members. At the same time, since the first and second conveying members are spaced apart along the first direction, that is, the part below the cells is hollowed out, the obstruction of the cell conveying device on the bottom surface of the cells can be reduced, so that the cells can be heated more evenly, thereby avoiding poor sintering of the cells. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the battery cell transmission device disclosed in the embodiments of this application;

[0024] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0025] Figure 3 This is a side view of the battery cell transport device disclosed in the embodiments of this application;

[0026] Figure 4 yes Figure 1 Cross-sectional view at point BB;

[0027] Figure 5 This is a schematic diagram of the drive mechanism disclosed in the embodiments of this application;

[0028] Figure 6 yes Figure 5 A magnified view of a section at point C;

[0029] Figure 7 This is a top view of the battery cell transport device disclosed in the embodiments of this application;

[0030] Figure 8 This is a schematic diagram of the structure of the battery cell sintering system disclosed in the embodiments of this application;

[0031] Figure 9 This is a schematic diagram of the structure of the heating source disclosed in the embodiments of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100-Cell transfer device; 1-First transfer assembly; 11-First transfer chain; 12-First transfer element; 121-First end; 122-Second end; 2-Second transfer assembly; 21-Second transfer chain; 22-Second transfer element; 3-Supporting element; 4-Drive mechanism; 41-Drive element; 42-Drive shaft; 43-Transmission wheel; 5-Hollow hole; 51-First sub-hollow hole; 52-Second sub-hollow hole; 200-Cell sintering system; 201-Sintering furnace; 201a-Heating source; 300-Cell; X-First direction; Y-Second direction. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In this application, the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated equipment, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0036] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" 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 based on the specific circumstances.

[0037] Furthermore, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection via an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0038] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0039] The cell sintering process involves forming good ohmic contact between the screen-printed positive and negative electrodes and the silicon wafer under high temperature, which can improve the open-circuit voltage and fill factor of the solar cell and increase its conversion efficiency.

[0040] The sintering of solar cells needs to be carried out in a sintering furnace. The sintering furnace is equipped with a conveying device to send the solar cells into the sintering furnace for sintering. After sintering, the solar cells are transported out of the sintering furnace.

[0041] In related technologies, the transmission device is usually composed of a whole mesh belt. The solar cells are placed on the mesh belt and enter the sintering furnace for sintering. However, when this whole mesh belt carries the solar cells into the sintering furnace, it will block the heat source under the solar cells, resulting in uneven heating of the solar cells and poor sintering of the solar cells.

[0042] In view of this, embodiments of this application disclose a battery cell transfer device. A first transfer component includes a first transfer chain and a plurality of first transfer members connected to the first transfer chain. A second transfer component includes a second transfer chain and a plurality of second transfer members connected to the second transfer chain. Both the first and second transfer members extend along a first direction, and the plurality of first transfer members are spaced apart along a second direction. The plurality of second transfer members are also spaced apart along the second direction. The number of second transfer members and first transfer members is the same, and corresponding second transfer members are spaced apart along the first direction. Both the first and second transfer chains extend along the second direction. The first transfer chain is configured to drive the first transfer members to move along the second direction, and the second transfer chain is configured to drive the second transfer members to move along the second direction. Both the first and second transfer members are provided with a plurality of support members for supporting battery cells. The support members are located on the side of the first and second transfer members that are close to each other, so that two support members located on the same straight line along the first direction are used to support the same battery cell. The first and second conveying components are spaced apart along a first direction, and a support member is provided on the side of the first and second conveying components that are close to each other to support the battery cell. The two support members located on the same straight line along the first direction are used to support the same battery cell. In this way, when the battery cell conveying device is used to carry the battery cell into the sintering furnace for sintering, the battery cell can be supported by the support members located on the first and second conveying components. At the same time, since the first and second conveying components are spaced apart along the first direction, that is, the part below the battery cell is hollowed out, the obstruction of the bottom surface of the battery cell by the battery cell conveying device can be reduced, so that the battery cell can be heated more evenly, thereby avoiding the occurrence of poor sintering of the battery cell.

[0043] Before describing the specific structure of this application, let me first introduce the battery cell involved in this application.

[0044] Silicon wafers are the raw material for solar cells. Silicon wafers are processed into finished solar cells through processes such as cleaning, texturing, screen printing, and sintering. Cleaning refers to the process of removing impurities, contaminants, and damaged layers from the surface of the silicon wafer using chemical and physical methods. This cleaning process mainly creates favorable surface conditions for subsequent processes such as texturing. Texturing refers to the process of chemically or physically treating the surface of the silicon wafer to form a microscopic textured surface. Screen printing refers to printing electrodes and grid lines on the surface of the silicon wafer to achieve current collection and transmission. Sintering, as one of the process steps in solar cell manufacturing, requires sintering the electrodes on the semi-finished solar cell (i.e., the silicon wafer that has only undergone screen printing). The solar cells mentioned below in this application refer to semi-finished solar cells that have undergone the screen printing process but have not yet undergone the sintering process.

[0045] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0046] The cell transfer device 100 of this application can be applied to the cell sintering system 200 (see [reference]). Figure 8 The solar cell sintering system 200 includes a sintering furnace 201, and a solar cell conveying device 100 along a second direction Y (e.g., ...). Figure 8 The cells (in the left and right directions of the middle paper) are inserted into the sintering furnace 201, so that the cells can be transported into the sintering furnace 201 for sintering by the cell transfer device 100.

[0047] Specifically, please refer to Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the battery cell transmission device disclosed in the embodiments of this application. Figure 2 yes Figure 1 A magnified view of a portion of point A in the middle. Figure 3 This is a side view of the battery cell transport device disclosed in this application. The battery cell transport device 100 includes a first transport assembly 1, a second transport assembly 2, and a plurality of support members 3. The first transport assembly 1 includes a first transport chain 11 and a plurality of first transport members 12 connected to the first transport chain 11, the first transport members 12 being transported along a first direction X (e.g., ...). Figure 1 Extending along the vertical direction of the paper, multiple first conveying elements 12 extend along the second direction Y (e.g., ...). Figure 1 The first conveyor chain 11 extends along the second direction Y and is configured to drive the first conveyor 12 to move along the second direction Y. The second conveyor assembly 2 includes a second conveyor chain 21 and a plurality of second conveyor elements 22 connected to the second conveyor chain 21. The second conveyor elements 22 extend along the first direction X and are spaced apart along the second direction Y. The number of second conveyor elements 22 is the same as that of the first conveyor elements 12, and the corresponding second conveyor elements 22 and first conveyor elements 12 are spaced apart along the first direction X. The second conveyor chain 21 extends along the second direction Y and is configured to drive the second conveyor elements 22 to move along the second direction Y. The aforementioned support member 3 is configured to support the battery cell 300. The first conveyor element 12 and the second conveyor element 22 are both provided with support members 3, and the support members 3 are located on the side of the first conveyor element 12 and the second conveyor element 22 that are close to each other, so that two support members 3 located on the same straight line along the first direction X are used to support the same battery cell 300.

[0048] The battery cell transport device 100 disclosed in this application is configured with support members 3 on the side of the first transport member 12 and the second transport member 22 that are close to each other. The first transport member 12 and the second transport member 22 are spaced apart along the first direction X. When the two support members 3, located on the same straight line along the first direction X, jointly support the same battery cell 300, there is a hollow portion between the two support members 3. That is, the lower part of the battery cell 300 is hollowed out. This reduces the obstruction of the bottom surface of the battery cell 300 by the first transport member 12 and the second transport member 22 when the battery cell transport device 100 transports the battery cell into the sintering furnace 201, thereby ensuring more uniform heating of the battery cell 300 and preventing poor sintering of the battery cell 300. Simultaneously, the number of first transport members 12 and the second transport member 22 are the same and they are arranged correspondingly to each other. The first transport members 12 and the second transport member 22 are spaced apart along the first direction X. This arrangement allows for the adaptation of battery cells 300 of different sizes by adjusting the distance between the first transport members 12 and the second transport member 22 along the first direction X.

[0049] Secondly, the battery cell transmission device 100 disclosed in this application drives the first transmission member 12 and the second transmission member 22 to move along the second direction Y through the first transmission chain 11 and the second transmission chain 21 respectively. This chain transmission method can improve the transmission stability of the battery cell 300 and prevent the battery cell 300 from shifting and being damaged during transmission.

[0050] In addition, the first conveying component 1 includes a plurality of first conveying elements 12 spaced apart along the second direction Y, and the second conveying component 2 includes a plurality of second conveying elements 22 spaced apart along the second direction Y. This spaced arrangement of multiple conveying elements can reduce the amount of heat carried out from the sintering furnace 201 by the conveying component during the transport of the battery cell 300, thereby reducing the heat loss of the sintering furnace 201.

[0051] Furthermore, the first conveying component 1 includes a first conveying chain 11 and a plurality of first conveying elements 12 connected to the first conveying chain 11. The first conveying chain 11 is configured to drive the first conveying elements 12 to move along the second direction Y. The second conveying component 2 includes a second conveying chain 21 and a plurality of second conveying elements 22 connected to the second conveying chain 21. The second conveying chain 21 is configured to drive the second conveying elements 22 to move along the second direction Y. Both the first conveying elements 12 and the second conveying elements 22 are provided with support elements 3 for supporting the battery cells 300. Thus, there are a plurality of support elements 3 along the second direction Y, which enables the battery cell conveying device 100 to carry multiple battery cells 300 at the same time, thereby improving the transmission efficiency of the battery cells 300.

[0052] It is understood that the first transmission chain 11 and the second transmission chain 21 mentioned above can be roller chains or toothed chains, etc., and this embodiment does not make specific limitations on this.

[0053] It is understood that since the first conveyor 12 and the second conveyor 22 need to support the support member 3, the first conveyor 12 and the second conveyor 22 need to have a certain width along the second direction Y. Therefore, the first conveyor 12 and the second conveyor 22 can be long strips, long rods or long blocks, etc. This embodiment does not make specific limitations on this.

[0054] Taking the first conveyor 12 as a long strip as an example, it can be understood that the first direction X is the length direction of the first conveyor 12, and the second direction Y is the width direction of the first conveyor 12.

[0055] It can be understood that the aforementioned support member 3 may specifically be a triangular thimble or support column, etc., and this embodiment does not make specific limitations on this.

[0056] It is understood that the first conveyor 12, the second conveyor 22, the first conveyor chain 11, the second conveyor chain 21, and the support 3 all need to enter the sintering furnace 201. Therefore, their materials need to be able to withstand high temperatures, specifically stainless steel or high-temperature alloys, etc. This embodiment does not make specific limitations on this.

[0057] In some embodiments, please refer to Figure 4 , Figure 4 yes Figure 1 A cross-sectional view at point BB. The first transmission chain 11 comprises two chains, spaced apart along a first direction X. Multiple first transmission elements 12 are simultaneously connected to both chains. By configuring two first transmission chains 11 and connecting multiple first transmission elements 12 to them simultaneously, this configuration provides dual support for the first transmission elements 12, thereby improving the transmission stability of the solar cell 300.

[0058] In addition, this dual-chain configuration ensures that if one chain fails, the other chain can continue to provide support and transmission functions, thereby ensuring the normal operation of the cell transmission device 100.

[0059] It is understood that the second transmission chain 21 also includes two, and its arrangement is the same as that of the first transmission chain 11. This embodiment will not elaborate further on this.

[0060] Please see Figure 4The first conveying member 12 has a first end 121 and a second end 122 along the first direction X. Along the first direction X, one first conveying chain 11 is connected to the first end 121, the support member 3 is disposed at the second end 122, and the other first conveying chain 11 is located between the support member 3 and one of the first conveying chains 11. By setting two first conveying chains 11 arranged at intervals along the first direction X, and having multiple first conveying members 12 simultaneously connected to these two first conveying chains 11, this arrangement can prevent the first conveying member 12 from twisting, tilting, or other unstable situations when moving the battery cell 300, ensuring the smoothness of the battery cell 300 transmission. This reduces the risk of damage to the battery cell 300 due to device instability during transmission and improves the reliability of the entire battery cell transmission device 100.

[0061] Secondly, the support member 3 is located at the second end 122, and one of the two first conveyor chains 11 is connected to the first end 121, while the other is located between the support member 3 and one of the first conveyor chains 11. This arrangement ensures that both first conveyor chains 11 are located on the side of the support member 3 not used to support the battery cell 300, thus preventing the first conveyor chains 11 from obstructing the bottom surface of the battery cell 300 and affecting its sintering effect. Furthermore, this arrangement helps achieve force balance, preventing damage to the battery cell 300 due to force imbalance when the support member 3 supports it.

[0062] It is understood that the first end 121 and the second end 122 of the first conveyor 12 along the first direction X are respectively: the first end 121 is the end of the first conveyor 12 away from the corresponding second conveyor 22 along the first direction X, and the second end 122 is the end of the first end 121 that is close to the corresponding second conveyor 22 along the first direction X.

[0063] It is understood that the positions of the two second transmission chains 21 connected to the second transmission member 22 are the same as the positions of the two first transmission chains 11 connected to the first transmission member 12. This embodiment will not elaborate further on this.

[0064] In some embodiments, please refer to Figure 1 , Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the drive mechanism disclosed in the embodiments of this application. Figure 6 yes Figure 5A partial enlarged view at point C. The cell transfer device 100 also includes a drive mechanism 4, which comprises a drive member 41, a drive shaft 42, and two transmission wheels 43. The first end 121 of the drive shaft 42 is connected to the drive member 41, and both transmission wheels 43 are sleeved on the drive shaft 42. Two first transmission chains 11 are respectively connected to the two transmission wheels 43. The drive member 41 drives the drive shaft 42 to rotate, thereby causing the two first transmission chains 11 to move synchronously in the second direction Y. By driving the drive shaft 42 to rotate through the drive member 41, the two transmission wheels 43 rotate synchronously, thereby causing the two first transmission chains 11 to move synchronously in the second direction Y. This arrangement ensures that the speed and displacement of the two first transmission chains 11 remain consistent during the transfer process, thus avoiding problems such as tilting, twisting, or damage to the cell 300 caused by asynchronous movement of the two first transmission chains 11, thereby improving the accuracy and stability of cell 300 transfer.

[0065] In addition, the drive component 41 in the drive mechanism 4 is connected to two transmission wheels 43 through a drive shaft 42. These two transmission wheels 43 are respectively connected to two first transmission chains 11. This structural design enables the two first transmission chains 11 to be powered by the same drive component 41, thereby ensuring the synchronicity of the two first transmission chains 11 during the movement and avoiding asynchronous movement caused by differences in different drive devices.

[0066] It is understood that the aforementioned driving component 41 may be an electric motor or a pneumatic motor, etc., and this embodiment does not specifically limit it.

[0067] It is understood that the aforementioned drive shaft 42 can be a hollow shaft, a solid shaft, or a stepped shaft, etc., and this embodiment does not specifically limit it.

[0068] It is understandable that the specific structure of the aforementioned transmission wheel 43 is matched with that of the first transmission chain 11. For example, when the first transmission chain 11 is a roller chain, the transmission wheel 43 is a sprocket. When the first transmission chain 11 is a toothed chain, the transmission wheel 43 is a gear. The specific structures of the first transmission chain 11 and the transmission wheel 43 can be selected according to actual process requirements.

[0069] It is understood that the drive mechanism 4 for the two second transmission chains 21 of the second transmission component 2 to move synchronously along the second direction Y is the same as the drive mechanism 4 of the first transmission component 1 in terms of structure and arrangement. This embodiment will not elaborate further on this.

[0070] It is understandable that the first conveyor 12 is connected to two first conveyor chains 11, and the second conveyor 22 is connected to two second conveyor chains 21. Since the support members 3 on the corresponding first conveyor 12 and second conveyor 22 are used to carry the same battery cell 300 and transport it, the two first conveyor chains 11 and the two second conveyor chains 21 need to move synchronously in order to ensure the transport stability of the battery cell 300.

[0071] Specifically, the two drive wheels 43 of the first transmission component 1 and the two drive wheels 43 of the second transmission component 2 are both mounted on the drive shaft 42, so that when the drive member 41 drives the drive shaft 42 to rotate, it can drive the two first transmission chains 11 and the two second transmission chains 21 to move synchronously. By mounting all four drive wheels 43 of the first transmission component 1 and the second transmission component 2 on the same drive shaft 42 and using a single drive member 41 to drive them, this arrangement reduces the number of drive members 41, thereby simplifying the structure of the entire drive mechanism 4. On the other hand, by using a single drive member 41 and a drive shaft 42 to drive all the transmission chains to move synchronously, the accuracy and reliability of the entire transmission can be improved.

[0072] Of course, as another example, the two transmission wheels 43 of the first transmission member 12 can be sleeved on a drive shaft 42 and controlled by a drive member 41, and the two transmission wheels 43 of the second transmission member 22 can be sleeved on another drive shaft 42 and controlled by another drive member 41. The two drive members 41 are controlled by a control system to have the same rotation speed, thereby making the four transmission chains move synchronously.

[0073] The cell transfer device 100 typically generates heat during continuous operation. If this heat cannot be dissipated in time, the temperature of the transfer components may rise, affecting their performance and lifespan. Please refer to [link / reference]. Figure 7 , Figure 7 This is a top view of the battery cell transfer device disclosed in the embodiments of this application. Both the first transfer member 12 and the second transfer member 22 have perforated holes 5. By having perforated holes 5 on both the first transfer member 12 and the second transfer member 22, the heat dissipation area of ​​the transfer members can be increased, thereby helping to maintain a stable operating temperature of the transfer members and ensuring the reliable operation of the battery cell transfer device 100.

[0074] In addition, the design of the hollow hole 5 can reduce the weight of the first conveyor 12 and the second conveyor 22. In this way, when the cell conveying device 100 is started and stopped, the lighter conveyor can respond to the command of the drive mechanism 4 more quickly, thereby making the operation of the cell conveying device 100 more sensitive and thus improving the efficiency of cell sintering.

[0075] Optionally, the first conveyor 12 and the second conveyor 22 are provided with a plurality of the aforementioned perforated holes 5, and at least some of the perforated holes 5 are positioned on the first conveyor 12 and / or the second conveyor 22 corresponding to the support member 3. By positioning the perforated holes 5 corresponding to the support member 3, the heat generated by the support member 3 and its surrounding area during the transmission of the battery cell 300 can be dissipated more directly, thereby preventing the support member 3 from being affected by overheating or damaged, thus extending the service life of the support member 3 and the conveyor, and enabling the battery cell transmission device 100 to operate stably for a long time.

[0076] In addition, perforations 5 are provided on the conveyor corresponding to the support 3, which allows dust, debris, and other impurities to fall off the conveyor more easily or be cleaned away by cleaning tools. This keeps the surfaces of the support 3 and the conveyor clean, thereby preventing impurities from affecting the transmission of the battery cell 300.

[0077] Optionally, the aforementioned perforated hole 5 includes a first sub-perforated hole 51 and a second sub-perforated hole 52. The first sub-perforated hole 51 is positioned on the first conveyor 12 and / or the second conveyor 22 corresponding to the support member 3. Both the first sub-perforated hole 51 and the second sub-perforated hole 52 are elongated holes extending along the first direction X, and along the first direction X, the opening length of the first sub-perforated hole 51 is less than the opening length of the second sub-perforated hole 52. The first sub-perforated hole 51, positioned corresponding to the support member 3, can directly dissipate heat from the support member 3 and its surrounding area, thereby preventing the support member 3 from overheating and affecting its performance or causing damage, and extending its service life. The second sub-perforated hole 52, with its longer opening length, can cover a larger area, more comprehensively dissipating the heat of the entire conveyor, and facilitating the removal of dust, debris, and other impurities from the conveyor or cleaning tools, thus preventing impurities from affecting the transmission of the battery cell 300.

[0078] In addition, the longer opening length of the second sub-hole 52 can further reduce the material in non-critical stress areas, thereby reducing weight to a greater extent while ensuring the overall structural strength of the transmission component, and thus reducing the cost of the battery cell transmission device 100.

[0079] It is understood that the shapes of the first sub-hole 51 and the second sub-hole 52 can be rectangular or oblong, etc., and this embodiment does not specifically limit them.

[0080] Please see Figure 8 , Figure 8This is a schematic diagram of the structure of the battery cell sintering system disclosed in this application embodiment. Secondly, this embodiment also discloses a battery cell sintering system 200, including a sintering furnace 201 and a battery cell conveying device 100 as described in the first aspect above. The battery cell conveying device 100 is disposed through the sintering furnace 201 along a second direction Y. The battery cell conveying device 100 can stably feed the battery cell 300 into the sintering furnace 201, thereby performing sintering of the battery cell 300. Furthermore, the battery cell conveying device 100 being disposed through the sintering furnace 201 along the second direction Y effectively utilizes the internal space of the sintering furnace 201, thereby reducing the space occupied by the entire battery cell sintering system 200.

[0081] In some embodiments, please refer to Figure 9 , Figure 9 This is a schematic diagram of the heating source disclosed in the embodiments of this application. A heating source 201a is provided on the inner wall of the sintering furnace 201, and this heating source 201a is arranged in a ring around the inner wall of the sintering furnace 201. This heating source 201a is configured to heat the battery cell 300. By arranging the heating source 201a in a ring around the inner wall of the sintering furnace 201, heat can be radiated into the furnace in an all-round and uniform manner, ensuring that the battery cell 300 is heated evenly during the sintering process. Furthermore, the first conveying member 12 and the second conveying member 22 in the battery cell conveying device 100 are arranged at intervals along the first direction X. This reduces the obstruction of the battery cell bottom surface by the battery cell conveying device 100, thereby further enabling the battery cell 300 to be heated more evenly and avoiding poor sintering of the battery cell 300.

[0082] It is understood that the heating source 201a mentioned above can be an electric heating tube or an infrared heater, etc., and this embodiment does not specifically limit it.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A battery cell transport device, characterized in that, The battery cell transport device includes: A first conveying assembly includes a first conveying chain and a plurality of first conveying elements connected to the first conveying chain. The first conveying elements extend along a first direction, and the plurality of first conveying elements are spaced apart along a second direction. The first conveying chain extends along the second direction, and the first conveying chain is configured to drive the first conveying elements to move along the second direction. The second conveying component includes a second conveying chain and a plurality of second conveying elements connected to the second conveying chain. The second conveying elements extend along the first direction, and the plurality of second conveying elements are spaced apart along the second direction. The number of second conveying elements is the same as that of the first conveying elements, and the corresponding second conveying elements and the first conveying elements are spaced apart along the first direction. The second conveying chain extends along the second direction and is configured to drive the second conveying elements to move along the second direction. Multiple support members are provided, the support members being configured to support battery cells. The first conveyor and the second conveyor are each provided with the support members, and the support members are disposed on the side of the first conveyor and the second conveyor that is close to each other, so that two support members located on the same straight line along the first direction are used to carry the same battery cell.

2. The cell transfer device of claim 1, wherein, The first conveyor chain includes two chains, which are spaced apart along the first direction, and multiple first conveyor components are simultaneously connected to the two first conveyor chains.

3. The cell transfer device of claim 2, wherein, The first conveying member has a first end and a second end along the first direction, wherein one of the first conveying chains is connected to the first end along the first direction, the support member is disposed at the second end, and another first conveying chain is located between the support member and one of the first conveying chains.

4. The cell transfer device of claim 2, wherein, The cell transmission device further includes a drive mechanism, which includes a drive component, a drive shaft, and two transmission wheels. One end of the drive shaft is connected to the drive component, and both transmission wheels are sleeved on the drive shaft. The two first transmission chains are respectively connected to the two transmission wheels. The driving component is used to drive the drive shaft to rotate so that the two first transmission chains move synchronously along the second direction.

5. The cell transfer device of claim 4, wherein, The two drive wheels of the first transmission component and the two drive wheels of the second transmission component are both sleeved on the drive shaft, so that when the drive member drives the drive shaft to rotate, it can drive the two first transmission chains and the two second transmission chains to move synchronously.

6. The cell transfer device of claim 1, wherein, Both the first and second conveying components have perforated holes.

7. The cell transfer device of claim 6, wherein, The first conveyor and the second conveyor are provided with a plurality of the aforementioned hollow holes, and at least some of the hollow holes are positioned on the first conveyor and / or the second conveyor in a manner corresponding to the support member.

8. The cell transfer device of claim 7, wherein, The hollow hole includes a first sub-hollow hole and a second sub-hollow hole, and the position of the first sub-hollow hole on the first conveyor and / or the second conveyor corresponds to the position of the support member. Both the first sub-hole and the second sub-hole are elongated holes extending along the first direction, and along the first direction, the opening length of the first sub-hole is less than the opening length of the second sub-hole.

9. A battery cell sintering system, characterized in that, It includes a sintering furnace and a cell transport device as described in any one of claims 1-8, wherein the cell transport device is disposed in the sintering furnace along the second direction.

10. The battery cell sintering system of claim 9, wherein, The inner wall of the sintering furnace is provided with a heating source, and the heating source is arranged around the inner wall of the sintering furnace in a circle. The heating source is configured to heat the battery cells.

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