CN218631983U - Transfer carrier and solar cell production line for transferring solar cells - Google Patents

Abstract

The application discloses a transfer carrier for transferring solar cells and a solar cell production line, and relates to the technical field of photovoltaic, wherein the transfer carrier comprises at least two vacuum generating devices and a carrier body for bearing the vacuum generating devices; the carrier body comprises a first bearing structure and a second bearing structure which are overlapped up and down, in the overlapped area, the carrier body comprises a first through hole which penetrates through the first bearing structure and a second through hole which penetrates through the second bearing structure, the central axes of the first through hole and the second through hole are overlapped, and the radial dimension of the first through hole is the same as that of the second through hole; the transfer carrier further comprises a rotating shaft, and the rotating shaft penetrates through the first through hole and the second through hole; the first bearing structure is provided with a first adsorption surface facing the solar cell, the second bearing structure is provided with a second adsorption surface facing the solar cell, the first adsorption surface and the second adsorption surface are located on the same plane, half solar cells can be compatible, debugging time is shortened, and production efficiency is improved.

Description

Transfer carrier and solar cell production line for transferring solar cells

technical field

The present application relates to the field of photovoltaic technology, and more specifically, to a transfer carrier and a solar cell production line for transferring solar cells.

Background technique

With the development of photovoltaic technology, the size of silicon wafers is also getting larger, which can achieve higher cell efficiency.

As the size of silicon wafers increases, the Bernoulli suction cups used to transport large-sized silicon wafers are also larger. When it is necessary to absorb half a cell, the Bernoulli suction cups suitable for the entire cell cannot be used due to their large size. To absorb half a cell, it is necessary to replace all the Bernoulli suction cups in the production line during the half-cell operation, resulting in a long shutdown and debugging time. At the same time, there is a high probability that the new suction cup will cause the risk of suction cup printing.

Contents of the invention

In view of this, the present application provides a transfer carrier and a solar cell production line for transferring solar cells, which are compatible with half solar cells, reduce debugging time, and improve production efficiency.

In a first aspect, the present application provides a transfer carrier for transferring solar cells. The transfer carrier includes at least two vacuum generating devices and a carrier body carrying the vacuum generating devices; the carrier body includes first The carrying structure and the second carrying structure, in the area where the first carrying structure and the second carrying structure overlap, the carrier body includes a first through hole penetrating through the first carrying structure and a second through hole penetrating through the second carrying structure, The central axis of the first through hole coincides with the central axis of the second through hole, and the radial dimension of the first through hole is the same as the radial dimension of the second through hole; the transfer carrier also includes a rotating shaft, which runs through the first through hole hole and a second through hole;

The first carrying structure has a first adsorption surface facing the solar cells, the second carrying structure has a second adsorption surface facing the solar cells, and the first adsorption surface and the second adsorption surface are located on the same plane.

Optionally, wherein: the carrier body has a first state and a second state; when the carrier body is in the first state, the extension line of the first load-bearing structure is perpendicular to the extension line of the second load-bearing structure; when the carrier body In the second state, the extension line of the first bearing structure intersects the extension line of the second bearing structure, and the included angle is a non-right angle.

Optionally, wherein: the transfer carrier further includes a driving member drivingly connected to the rotating shaft, and the driving member is used to drive the carrier body to switch between the first state and the second state through the rotating shaft.

Optionally, wherein: the first carrying structure includes a first overlapping portion, the second carrying structure includes a second overlapping portion, and when the first carrying structure and the second carrying structure overlap up and down, the first overlapping portion is located at the first overlapping portion. the top of the two overlapping parts;

The vertical distance from the side of the first overlapping portion close to the solar cell to the first adsorption surface is greater than or equal to the vertical distance from the side of the second overlapping portion away from the solar cell to the second adsorption surface.

Optionally, wherein: the side of the first overlapping portion close to the second overlapping portion has a first groove, the first groove has a first length along the extending direction of the first carrying structure, and the second overlapping portion is The extending direction perpendicular to the second carrying structure has a second width, and the first length is greater than the second width.

Optionally, wherein: there are at least four vacuum generators, and they are evenly distributed at both ends of the first bearing structure and both ends of the second bearing structure; the vacuum generators located on the first bearing structure are distributed symmetrically about the rotation axis, The vacuum generators located on the second carrier structure are distributed symmetrically with respect to the axis of rotation.

Optionally, wherein: the vacuum generating device includes a Bernoulli vacuum device.

Optionally, wherein: the Bernoulli vacuum device includes an air inlet, an air outlet, and an air chamber communicated with the air inlet and the air outlet, the end of the air inlet communicates with the beginning of the air outlet, and the end of the air outlet communicates with the outside world , the end of the air outlet is set opposite to the solar cells.

Optionally, wherein: the transfer carrier further includes a buffer structure, and the buffer structure is arranged on a side of the transfer carrier facing the solar cells.

In the second aspect, the present application also provides a solar cell production line, the solar cell production line includes the transfer carrier described in the first aspect, the transfer carrier includes a plurality of Bernoulli vacuum devices, and the Bernoulli vacuum device includes an air inlet, The solar cell production line also includes at least one gas supply device, which communicates with the air inlet and is used for supplying compressed gas to the Bernoulli vacuum device.

Compared with the prior art, a transfer carrier and a solar cell production line for transferring solar cells provided by the present application at least achieve the following beneficial effects:

The transfer carrier for transferring solar cells provided by the present application absorbs the solar cells through the vacuum generating device on the carrier body, and transfers the solar cells while maintaining the adsorption state. On the one hand, when absorbing solar cells, the adsorption effect generated by the vacuum generating device makes the solar cells be adsorbed on the first adsorption surface and the second adsorption surface, and the transfer carrier can carry the solar cells for transfer; located on the same plane The first adsorption surface and the second adsorption surface enable the solar cells to be evenly stressed when they are adsorbed by the transfer carrier, avoiding the occurrence of air leakage during the process of adsorbing the solar cells, and avoiding the damage of the solar cells at the same time . On the other hand, when the size of the solar cells to be absorbed and transported changes, it is only necessary to rotate the first carrying structure and the second carrying structure around the rotation axis, and adjust the rotation angle to be suitable for absorbing the current solar cells. It can be seen that the transfer carrier provided by this application can be compatible with solar cells of different sizes and shapes while achieving adsorption and transfer, which improves production efficiency and reduces production cost.

Of course, implementing any product of the present application does not necessarily need to achieve all the above-mentioned technical effects at the same time.

Other features of the present application and advantages thereof will become apparent through the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the embodiments of the application and together with the description serve to explain the principles of the application.

Fig. 1 shows a schematic diagram of a Bernoulli sucker adsorbing half a solar cell in the prior art;

FIG. 2 is a schematic diagram of another Bernoulli sucker adsorbing half a solar cell in the prior art;

FIG. 3 is a top view of a transfer carrier provided in the embodiment of the present application in a first situation;

FIG. 4 is a top view of a transfer carrier provided in the embodiment of the present application in a second situation;

Fig. 5 is a top view of the transfer carrier when the carrier body provided by the embodiment of the present application is in the first state;

Fig. 6 is a top view of the transfer carrier when the carrier body provided by the embodiment of the present application is in the second state;

FIG. 7 is a side view of the transfer carrier provided by the embodiment of the present application when the carrier body is in the first state.

Detailed ways

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as any limitation of the application, its application or uses.

Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

In all examples shown and discussed herein, any specific values should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have different values.

It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.

With the development of photovoltaic technology, the competition in the photovoltaic market is becoming increasingly fierce. The demand for the component power of photovoltaic modules continues to rise, and the size of silicon wafers is gradually increasing to obtain higher cell efficiency. Especially for the development of N-type large-size half-cell battery technology, technical reserves are imminent.

FIG. 1 is a schematic diagram of a Bernoulli sucker adsorbing half a solar cell in the prior art; FIG. 2 is a schematic diagram of another Bernoulli sucker adsorbing a half solar cell in the prior art.

As shown in Figure 1 and Figure 2, with the increase in the size of silicon wafers, especially the existing 210mm full-wafer automation equipment, the Bernoulli suction cups used to handle large-sized silicon wafers are also larger, and when it is necessary to absorb half a wafer For solar cells, the Bernoulli sucker suitable for the whole cell cannot absorb half a solar cell due to its large size. It is necessary to replace all the automatic production lines and Bernoulli suckers in all processes during the half-cell operation, resulting in downtime and debugging If the time is too long, the cost of the suction cup will be too high. At the same time, there is a high probability that the new suction cup will cause the risk of suction cup printing.

In order to solve the above technical problems, the embodiment of the present application proposes a transfer carrier and a solar cell production line for transferring solar cells, which are compatible with half solar cells, reduce debugging time, and improve production efficiency.

A detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

Fig. 3 shows a top view of a transfer carrier provided by the embodiment of the present application in the first situation; Fig. 4 shows a top view of a transfer carrier provided by the embodiment of the present application in the second case; Fig. 5 shows the top view of the carrier body provided by the embodiment of the present application when it is in the first state; Fig. 6 shows the transfer carrier when the carrier body provided by the embodiment of the present application is in the second state Figure 7 is a side view of the transfer carrier when the carrier body provided by the embodiment of the present application is in the first state.

As shown in Figures 3 to 7, the embodiment of the present application provides a transfer carrier 2 for transferring solar cells 1, the transfer carrier 2 includes at least two vacuum generating devices 22 and a carrier carrying the vacuum generating devices 22 Body 21; the carrier body 21 includes a first load-bearing structure 211 and a second load-bearing structure 212 that overlap up and down. The first through hole 2111 of the carrying structure 211 and the second through hole 2121 passing through the second carrying structure 212, the central axis of the first through hole 2111 coincides with the central axis of the second through hole 2121, and the radial direction of the first through hole 2111 The size is the same as the radial size of the second through hole 2121; the transfer carrier 2 further includes a rotating shaft 23, and the rotating shaft 23 passes through the first through hole 2111 and the second through hole 2121;

The first carrying structure 211 has a first adsorption surface facing the solar cell 1 , the second carrying structure 212 has a second adsorption surface facing the solar cell 1 , and the first adsorption surface and the second adsorption surface are located on the same plane.

During specific implementation, as shown in FIGS. 3 to 7 , when the solar cells 1 need to be transferred, the first carrying structure 211 and the second carrying structure 212 of the transfer carrier 2 overlap each other, and under the adsorption of the vacuum generating device 22 , the transfer carrier 2 absorbs the solar cells 1 through the first adsorption surface and the second adsorption surface located on the same plane, and then transfers them; when the size of the solar cells 1 to be adsorbed and transferred changes, the first The carrying structure 211 and the second carrying structure 212 rotate around the rotation axis 23 passing through the first through hole 2111 and the second through hole 2121 , and are adsorbed and transported after being rotated to a suitable angle.

It can be seen from the composition structure and specific implementation process of the above-mentioned transfer carrier 2 that, as shown in FIGS. The vacuum generating device 22 above is used to absorb the solar battery sheet 1, and the solar battery sheet 1 is transported while maintaining the adsorption state. Specifically, on the one hand, both the first carrying structure 211 and the second carrying structure 212 included in the carrier body 21 have adsorption surfaces facing the solar cells 1, and when the solar cells 1 are adsorbed, the vacuum generated by the vacuum generating device 22 The adsorption effect makes the solar cell 1 be adsorbed on the first adsorption surface and the second adsorption surface, and the transfer carrier 2 can carry the solar cell for transfer; wherein, the first adsorption surface and the second adsorption surface opposite to the solar cell 1 The surfaces are located on the same plane, so that the solar cells 1 can be evenly stressed when being absorbed by the transfer carrier 2, avoiding the occurrence of air leakage during the process of absorbing the solar cells 1, and avoiding the damage of the solar cells 1 at the same time. Increased production efficiency. On the other hand, the first bearing structure 211 and the second bearing structure 212 included in the carrier body 21 overlap up and down, and in the overlapping area, the first through hole 2111 passing through the first bearing structure 211 and the second bearing structure The second through hole 2121 of the structure 212 has a coincident central axis and radial dimension, that is, the first through hole 2111 and the second through hole 2121 overlap, which is convenient to be sleeved with the rotating shaft 23 and is beneficial to the first bearing structure 211 and the smooth rotation of the second carrying structure 212; when the size of the solar cell 1 to be absorbed and transported changes, for example, when the solar cell 1 in the production line is changed between the full sheet form and the half sheet form, only The first carrying structure 211 and the second carrying structure 212 need to be rotated around the rotation axis 23, and the rotation angle is adjusted to an angle suitable for absorbing the current solar cell 1, then the same transfer carrier 2 can be used for adsorption and transfer. It can be seen that the transfer carrier 2 provided by the embodiment of the present application can achieve adsorption and transfer while being compatible with solar cells 1 of different sizes and shapes, especially compatible with solar cells 1 in whole and half shapes, reducing the need for replacement. The downtime and debugging time and cost required for the transfer vehicle 2 avoid damage to the solar cells 1 after the new transfer vehicle 2 is replaced, improve production efficiency, and reduce production costs.

In some examples, the transfer carrier 2 provided by the embodiment of the present application includes at least two vacuum generating devices 22, as shown in Figure 3 and Figure 4, when the number of vacuum generating devices 22 is two, at this time, the first One end of a carrying structure 211 and one end of a second carrying structure 212 overlap up and down, and two vacuum generating devices 22 are arranged near the middle positions of the first carrying structure 211 and the second carrying structure 212 respectively, and on the first carrying structure 211 Same as the position on the second bearing structure 212; the rotating shaft 23 runs through the overlapping area so that the first bearing structure 211 and the second bearing structure 212 can rotate around the overlapping ends; in the first case, the first bearing structure The extension line of 211 intersects with the extension line of the second supporting structure 212, and the acute angle formed is relatively large, which is convenient for the transfer carrier 2 to absorb and transfer solar cells 1 of larger size or whole form. In the second case, the first The extension line of the carrying structure 211 intersects with the extension line of the second carrying structure 212 , and the acute angle formed is relatively small, which is convenient for the transfer carrier 2 to absorb and transfer smaller-sized or half-sized solar cells 1 . When the number of vacuum generating devices 22 is three, one vacuum generating device 22 can be added in the overlapping area of the first carrying structure 211 and the second carrying structure 212 in the transfer carrier 2 as shown in Fig. 3 and Fig. 4 .

In some examples, as shown in FIGS. 5 and 6 , the number of vacuum generating devices 22 can be set to at least four, and they are evenly distributed at both ends of the first carrying structure 211 and both ends of the second carrying structure 212 , to further improve the stability and reliability during transport; the vacuum generators 22 on the first carrying structure 211 are symmetrically distributed about the rotating shaft 23, and the vacuum generating devices 22 on the second carrying structure 212 are symmetrically distributed about the rotating shaft 23 , so that both ends of the first supporting structure 211 and the second supporting structure 212 have equal adsorption force on the solar battery sheet 1, which ensures that the solar battery sheet 1 is evenly stressed when being adsorbed and transported, and avoids leakage caused by uneven force. Gas or solar cell 1 is damaged.

It should be noted that the embodiment of the present application does not limit the number and position of the vacuum generating devices 22, for example, when the number of vacuum generating devices 22 is four, the two ends of the first carrying structure 211 and the second carrying structure 212 Each is distributed with a vacuum generating device 22, and the vacuum generating device 22 located in the first carrying structure 211 and the vacuum generating device 22 located in the second carrying structure 212 are all symmetrically distributed about the rotation axis 23; the quantity of the vacuum generating device 22 is also It can be 8, 12, etc., and the positions are not limited to the positions shown in Fig. 5 and Fig. 6 , which are only used as examples and not specifically limited.

In some examples, the embodiment of the present application does not limit the specific shapes and structures of the first load-bearing structure and the second load-bearing structure. The first load-bearing structure and the second load-bearing structure can be either a slat-shaped structure or a frame The formula structure is only used as an example here, and is not specifically limited.

It should be noted that, as shown in Figures 5 to 7, since the transfer carrier 2 provided by the embodiment of the present application uses the adsorption of the vacuum generating device 22 to transfer the solar cells 1, after adjusting the first carrying structure 211 and When the rotation angle of the second supporting structure 212 is determined, it is necessary to ensure that the edges of the first supporting structure 211 and the second supporting structure 212 should not exceed the solar cells 1 , so as to avoid poor adsorption effect caused by air leakage or damage to the solar cells 1 .

As a possible implementation, as shown in FIGS. 5 to 7 , the carrier body 21 has a first state and a second state; when the carrier body 21 is in the first state, the extension line of the first carrying structure 211 and the The extension lines of the second bearing structure 212 are perpendicular to each other; when the carrier body 21 is in the second state, the extension lines of the first bearing structure 211 and the extension lines of the second bearing structure 212 intersect, and the included angle is a non-right angle.

Based on this, as shown in Figures 5 to 7, when the solar cells 1 to be transported are changed between the full sheet form and the half sheet form, the carrier body 21 is also correspondingly changed in the first state and the second state. Change; when the solar cells 1 that need to be transported are in the form of a whole piece, the carrier body 21 is in the first state, and the extension line of the first carrying structure 211 and the extending line of the second carrying structure 212 are perpendicular to each other at this time, the first A cross-shaped intersection is formed between the carrying structure 211 and the second carrying structure 212, and the projection range on the solar cell 1 is relatively large, which is convenient for absorbing the entire solar cell 1; when the solar cell 1 to be transported is In the half-piece form, the carrier body 21 is in the second state. At this time, the extension line of the first load-bearing structure 211 intersects the extension line of the second load-bearing structure 212, and the angle formed is a non-right angle. The first load-bearing structure 211 and the second load-bearing structure 212 intersect. An X-shaped intersection is formed between the second supporting structures 212 , and the projection range on the solar cell 1 is relatively small, which is convenient for absorbing half of the solar cell 1 . It can be seen that the transfer carrier 2 provided in the embodiment of the present application can change the state of the carrier body 21 through different rotation angles of the first carrying structure 211 and the second carrying structure 212, so as to adapt to different forms of solar cells. 1. Improve production efficiency and reduce production cost.

In some examples, the first state and the second state of the carrier body can not only be applicable to the full sheet form and the half sheet form of the solar cell, but also applicable to solar cell sheets of different sizes, for example, when the carrier body is in the first When the carrier body is in the second state, it can be applied to larger-sized solar cells, and when the carrier body is in the second state, it can be applied to smaller-sized solar cells.

In some examples, the transfer carrier further includes a driving member drivingly connected to the rotating shaft, and the driving member is used to drive the carrier body to switch between the first state and the second state through the rotating shaft.

Based on this, when the size or shape of the solar cells that need to be transported changes, the state of the carrier body also changes accordingly. The rotation of the first load-bearing structure and the second load-bearing structure can be achieved manually or mechanically. The driving mode is used for automatic rotation; when the first load-bearing structure and the second load-bearing structure are rotated by mechanical drive, the rotation of the first load-bearing structure and the second load-bearing structure can be driven by a drive connected to the rotating shaft. The angle is adjusted to realize the conversion of the carrier body between the first state and the second state. It can be seen that the use of mechanical drive reduces labor costs, has better stability, and further improves production efficiency.

In addition, when using mechanical drive to rotate the first load-carrying structure and the second load-bearing structure in actual production, parameters can be preset for the transferred solar cells to achieve the best rotation angle and number of rotations, etc., to avoid repeated production. Adjustments were made to further improve production efficiency.

Exemplarily, electric driving or pneumatic driving may be selected to drive the rotation of the first bearing structure and the second bearing structure, and the driving member may be a motor or a cylinder, which is only used as an example here and not specifically limited.

As a possible implementation manner, as shown in FIGS. When the second carrying structure 212 overlaps up and down, the first overlapping portion 2112 is located above the second overlapping portion 2122;

The vertical distance from the side of the first overlapping portion 2112 close to the solar cell 1 to the first adsorption surface is greater than or equal to the vertical distance from the side of the second overlapping portion 2122 away from the solar cell 1 to the second adsorption surface.

Based on this, as shown in FIGS. 5 to 7 , the first carrying structure 211 includes a first overlapping portion 2112 overlapping with the second carrying structure 212 , and the second carrying structure 212 includes a first overlapping portion 2112 overlapping with the first carrying structure 211 . An overlapping portion 2112, when the first carrying structure 211 and the second carrying structure 212 overlap up and down, the first overlapping portion 2112 is located above the second overlapping portion 2122, that is, between the first carrying structure 211 and the second carrying structure 211. In the area where the carrying structures 212 overlap, the first carrying structure 211 is located above the second carrying structure 212; at the same time, the vertical distance from the side of the first overlapping portion 2112 close to the solar cell 1 to the first adsorption surface, It is set to be greater than or equal to the vertical distance from the side of the second overlapping portion 2122 away from the solar battery sheet 1 to the second adsorption surface, so that the first carrying structure 211 and the second carrying structure 212 can achieve flat overlapping, avoiding the first The adsorption sides of the supporting structure 211 and the second supporting structure 212 are warped or uneven, thereby ensuring that the first and second adsorption surfaces are on the same plane, so as to achieve uniform adsorption on the solar cells 1 and improve production efficiency.

As a possible implementation, as shown in FIGS. 5 to 7 , the side of the first overlapping portion 2112 close to the second overlapping portion 2122 has a first groove 2113 along the extending direction of the first carrying structure 211 , The first groove 2113 has a first length, the second overlapping portion 2122 has a second width in a direction perpendicular to the extending direction of the second carrying structure 212 , and the first length is greater than the second width.

Based on this, as shown in FIGS. 5 to 7 , in order to realize the vertical overlapping of the first carrying structure 211 and the second carrying structure 212 , the first carrying structure 211 and the second carrying structure 212 in the overlapping area can be interlocked. Then, for example, the side of the upper first overlapping portion 2112 close to the second overlapping portion 2122 can be set in the form of a groove that can accommodate the second overlapping portion 2122, that is, the first groove 2113; In the extending direction of the structure 211, the first groove 2113 has a first length, and in the direction perpendicular to the extending direction of the second carrying structure 212, the second overlapping portion 2122 has a second width. A length is set to be greater than the second width, that is, when the first carrying structure 211 and the second carrying structure 212 intersect in a cross shape, in the extending direction of the first carrying structure 211, the first overlapping portion 2112 has a first There is a distance between the groove 2113 and the second overlapping portion 2122, so that the first carrying structure 211 and the second carrying structure 212 can be rotated by using this distance to adjust the projection range of the transfer carrier 2 on the solar cell sheet 1, which is convenient The transfer carrier 2 is compatible with solar cells 1 of different sizes and shapes, which is beneficial to improve production efficiency and reduce production cost.

It can be seen that the difference between the first length and the second width can directly affect the rotatable range of the first load-bearing structure and the second load-bearing structure. In the actual production process, if a larger rotation range is required, it can be Increase the difference between the first length and the second width. The specific values of the first length and the second width can be adjusted in actual production, which is not limited in this embodiment of the present application.

As a possible implementation manner, the vacuum generating device includes a Bernoulli vacuum device.

Based on this, considering the fragility of the solar cell itself, the vacuum generating device in the embodiment of the present application can be a Bernoulli vacuum device manufactured based on the Bernoulli principle, so as to realize non-contact adsorption of the solar cell and gently grasp the solar cell. Taking the solar cells, while ensuring sufficient adsorption force, minimizes the contact with the solar cells, reduces the loss of the solar cells during the adsorption process, and improves the yield and production efficiency.

Exemplarily, the Bernoulli vacuum device provided by the embodiment of the present application may include a brush-type Bernoulli suction cup, a sponge-type Bernoulli suction cup with negative pressure detection, a combined Bernoulli suction cup, a hole-type suction cup, a single At least one of Bernoulli suction cups, double-core Bernoulli suction cups, special-core Bernoulli suction cups, Bernoulli square suction cups, etc., which are only used as examples and not specifically limited.

In some examples, the Bernoulli vacuum device includes an air inlet, an air outlet, and an air chamber communicated with the inlet and the air outlet, the end of the air inlet communicates with the beginning of the air outlet, and the end of the air outlet communicates with the outside world, The end of the air outlet is arranged opposite to the solar cells.

Based on this, when the vacuum generating device provided in the embodiment of the present application includes a Bernoulli vacuum device, the Bernoulli vacuum device may include an air inlet and an air outlet, and the end of the air inlet communicates with the beginning of the air outlet, and the outlet The end of the gas port communicates with the outside world, forming a complete passage. Based on Bernoulli's principle, after the compressed gas is introduced into the beginning of the gas inlet of the Bernoulli vacuum device, the gas flows through the end of the gas inlet and the gas outlet. At the beginning, it is finally ejected from the end of the air outlet to the outside, and because the end of the air outlet is opposite to the solar cells, the gas injected from the end of the air outlet forms a cyclone between the solar cells and generates negative pressure, realizing the protection of solar energy. The adsorption of the cells reduces the damage to the solar cells and improves the yield and production efficiency.

Exemplarily, the embodiment of the present application does not limit the specific structure of the Bernoulli vacuum device and the position, shape and quantity of the inlet and outlet, and the Bernoulli vacuum device that can be used to absorb solar cells can be Applied to the embodiment of this application; for example, the air inlet can be located in the center of the Bernoulli vacuum device, opposite to the solar cells, or on one side of the Bernoulli vacuum device, in the same direction as the extending direction of the solar cells Parallel, can also exist on the same Bernoulli vacuum device at the same time, this is just an example, not specifically limited.

In some examples, the Bernoulli vacuum device further includes a gas chamber in communication with the gas inlet and the gas outlet. Based on this, after the compressed gas is fed into the beginning of the gas inlet of the Bernoulli vacuum device, the compressed gas will pass through the end of the gas inlet, the gas chamber and the beginning of the gas outlet in sequence, and finally spray to the outside from the end of the gas outlet. ; For the Bernoulli vacuum devices respectively located on the first load-bearing structure or the second load-bearing structure, each Bernoulli vacuum device can have its own independent air chamber, or it can be placed on the first load-bearing structure or the second load-bearing structure The gas chambers of the Bernoulli vacuum devices at the same end can also be connected to all the Bernoulli vacuum devices located on the first carrying structure or the second carrying structure. This is only an example, and this application is not limited thereto.

In some examples, the transfer carrier further includes a buffer structure, and the buffer structure is disposed on a side of the transfer carrier facing the solar cells. Based on this, in order to further reduce the damage and deformation of the solar cells, a buffer structure can be provided on the side of the transfer carrier facing the solar cells. Since the adsorption force on the transfer carrier is mainly concentrated near the vacuum generator, it can A buffer structure is arranged around the vacuum generating device to reduce deformation of the solar cells.

Exemplarily, the cushioning structure may include brushes, gaskets, etc., and the specific material may be rubber, sponge, ceramics, etc., which are only used as examples and are not specifically limited.

Exemplarily, the embodiment of the present application does not limit the specific number, shape and distribution of the buffer structures, which are set to reduce damage and deformation of the solar cells during specific implementation.

Based on the same inventive concept, the present application also provides a solar cell production line, which includes the transfer carrier provided in the above-mentioned embodiments. The transfer vehicle includes a plurality of Bernoulli vacuum devices, the Bernoulli vacuum device includes an air inlet, and the solar cell production line also includes at least one air supply device, which communicates with the air inlet for supplying the Bernoulli vacuum device Provide compressed gas.

Compared with the prior art, the beneficial effects of the solar cell production line are the same as those of the transfer carrier provided by the above-mentioned embodiments, and will not be repeated here.

In addition, in the solar cell production line provided by the embodiment of the present application, when the vacuum generating device included in the transfer carrier is a Bernoulli vacuum device, at least one gas supply device can be set in the solar cell production line, and by providing Bernoulli The air inlet of the vacuum device provides compressed gas to make the transfer carrier have adsorption force to realize the transfer of solar cells. Exemplarily, the solar cell production line provided by the embodiment of the present application may only include one gas supply device to provide compressed gas to all Bernoulli vacuum devices, and at this time, the inlets of all Bernoulli vacuum devices can be connected, It is also possible to add multiple branches for the gas supply device to communicate with each Bernoulli device; the solar cell production line can also include a plurality of gas supply devices corresponding to the Bernoulli vacuum device one-to-one, and can also include a A corresponding plurality of air supply devices and the like are not limited in this embodiment of the present application.

To sum up, the transfer vehicle and solar cell production line provided by the present application for transferring solar cells at least achieve the following beneficial effects:

The transfer carrier for transferring solar cells provided by the present application absorbs the solar cells through the vacuum generating device on the carrier body, and transfers the solar cells while maintaining the adsorption state. On the one hand, when absorbing solar cells, the adsorption effect generated by the vacuum generating device makes the solar cells be adsorbed on the first adsorption surface and the second adsorption surface, and the transfer carrier can carry the solar cells for transfer; located on the same plane The first adsorption surface and the second adsorption surface enable the solar cells to be evenly stressed when they are adsorbed by the transfer carrier, avoiding the occurrence of air leakage during the process of adsorbing the solar cells, and avoiding the damage of the solar cells at the same time . On the other hand, when the size of the solar cells to be absorbed and transported changes, it is only necessary to rotate the first carrying structure and the second carrying structure around the rotation axis, and adjust the rotation angle to be suitable for absorbing the current solar cells. It can be seen that the transfer carrier provided by this application can be compatible with solar cells of different sizes and shapes while achieving adsorption and transfer, which improves production efficiency and reduces production cost.

Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, rather than limiting the scope of the present application. Those skilled in the art will appreciate that modifications can be made to the above embodiments without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.

Claims (10)

1. A transportation carrier for transporting solar cells is characterized by comprising at least two vacuum generating devices and a carrier body for bearing the vacuum generating devices; the carrier body comprises a first bearing structure and a second bearing structure which are overlapped up and down, in an overlapped area of the first bearing structure and the second bearing structure, the carrier body comprises a first through hole penetrating through the first bearing structure and a second through hole penetrating through the second bearing structure, the central axis of the first through hole is overlapped with the central axis of the second through hole, and the radial dimension of the first through hole is the same as that of the second through hole; the transfer carrier further comprises a rotating shaft, and the rotating shaft penetrates through the first through hole and the second through hole;

the first bearing structure is provided with a first adsorption surface facing the solar cell, the second bearing structure is provided with a second adsorption surface facing the solar cell, and the first adsorption surface and the second adsorption surface are located on the same plane.

2. The vehicle of claim 1, wherein the vehicle body has a first state and a second state; when the carrier body is in a first state, the extension line of the first bearing structure is vertical to the extension line of the second bearing structure; when the carrier body is in a second state, the extension line of the first bearing structure is intersected with the extension line of the second bearing structure, and the included angle is a non-right angle.

3. The transport vehicle of claim 2, further comprising a drive member in driving connection with the rotating shaft, the drive member being configured to drive the vehicle body via the rotating shaft between the first state and the second state.

4. The transport vehicle of claim 1, wherein the first load-bearing structure includes a first overlap portion and the second load-bearing structure includes a second overlap portion, the first overlap portion being located above the second overlap portion when the first load-bearing structure overlaps the second load-bearing structure one above the other;

the vertical distance from one side of the first overlapping part close to the solar cell piece to the first adsorption surface is greater than or equal to the vertical distance from one side of the second overlapping part far away from the solar cell piece to the second adsorption surface.

5. The transport carrier of claim 4, wherein a side of the first overlap portion adjacent to the second overlap portion has a first groove having a first length along an extension direction of the first carrier structure, and the second overlap portion has a second width perpendicular to the extension direction of the second carrier structure, and the first length is greater than the second width.

6. The transport vehicle of claim 1, wherein the vacuum generating devices are at least four and are evenly distributed at two ends of the first bearing structure and two ends of the second bearing structure; the vacuum generating devices on the first carrying structure are symmetrically distributed about the rotation axis and the vacuum generating devices on the second carrying structure are symmetrically distributed about the rotation axis.

7. The transport vehicle of claim 1, wherein the vacuum generating device comprises a bernoulli vacuum device.

8. The transport vehicle of claim 7, wherein the bernoulli vacuum apparatus comprises an air inlet, an air outlet, and an air chamber communicating with the air inlet and the air outlet, wherein the end of the air inlet communicates with the beginning of the air outlet, the end of the air outlet communicates with the outside, and the end of the air outlet is opposite to the solar cell.

9. The vehicle of claim 1, further comprising a buffer structure disposed on a side of the vehicle facing the solar cell.

10. A solar cell production line comprising the transport vehicle of any one of claims 1-9, the transport vehicle comprising a plurality of bernoulli vacuum devices, the bernoulli vacuum devices comprising an air inlet, the solar cell production line further comprising at least one air supply device in communication with the air inlet for providing compressed air to the bernoulli vacuum devices.

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