CN218631983U - A transport carrier and solar cell production line for transporting solar wafer - 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

A transport carrier and solar cell production line for transporting solar wafer

Technical Field

The application relates to the field of photovoltaic technology, in particular to a transport carrier for transporting solar cells and a solar cell production line.

Background

With the development of photovoltaic technology, the size of silicon wafers is also getting larger and larger, and higher cell efficiency can be obtained.

Along with the increase of silicon chip size, the Bernoulli chuck for carrying jumbo size silicon chip is also great, and when needs adsorb half battery piece, the Bernoulli chuck that is applicable to whole battery piece can't adsorb half battery piece because the size is great, need change all Bernoulli chucks in the production line when carrying out half operation, leads to shutting down the debugging time for a long time, and simultaneously, new sucking disc probability has the risk that causes the sucking disc seal.

Disclosure of Invention

In view of this, the application provides a transport carrier and solar cell production line for transporting solar wafer for compatible half solar wafer reduces the debugging time, improves production efficiency.

In a first aspect, the application provides a transfer carrier for transferring solar cells, the transfer carrier comprising at least two vacuum generating devices and a carrier body for carrying 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.

Optionally, wherein: the carrier 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 the 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.

Optionally, wherein: the transfer carrier further comprises a driving piece in driving connection with the rotating shaft, and the driving piece is used for driving the carrier body to be switched between the first state and the second state through the rotating shaft.

Optionally, wherein: the first bearing structure comprises a first overlapping part, the second bearing structure comprises a second overlapping part, and when the first bearing structure and the second bearing structure are overlapped up and down, the first overlapping part is positioned above the second overlapping part;

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.

Optionally, wherein: the first overlapping portion is provided with a first groove on one side close to the second overlapping portion, the first groove is provided with a first length along the extending direction of the first bearing structure, the second overlapping portion is provided with a second width in the extending direction perpendicular to the second bearing structure, and the first length is larger than the second width.

Optionally, wherein: the vacuum generating devices are at least four and are uniformly 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 axis of rotation, and the vacuum generating devices on the second carrying structure are symmetrically distributed about the axis of rotation.

Optionally, wherein: the vacuum generating means comprises a bernoulli vacuum apparatus.

Optionally, wherein: the Bernoulli vacuum device comprises an air inlet, an air outlet and an air chamber communicated with the air inlet and the air outlet, wherein the tail end of the air inlet is communicated with the initial end of the air outlet, the tail end of the air outlet is communicated with the outside, and the tail end of the air outlet is arranged opposite to the solar cell.

Optionally, wherein: the transportation carrier further comprises a buffer structure, and the buffer structure is arranged on one side, facing the solar cell, of the transportation carrier.

In a second aspect, the present application further provides a solar cell production line comprising the transport carrier described in the first aspect, the transport carrier comprising a plurality of bernoulli vacuum devices, the bernoulli vacuum devices comprising air inlets, the solar cell production line further comprising at least one air supply device in communication with the air inlets for providing compressed air to the bernoulli vacuum devices.

Compared with the prior art, the application provides a transport carrier and solar cell production line for transporting solar wafer has realized following beneficial effect at least:

the utility model provides a transport carrier for transporting solar wafer adsorbs solar wafer through the vacuum generating device that is located on the carrier body to transport solar wafer under the circumstances that keeps the adsorption state. On one hand, when the solar cell is adsorbed, the solar cell is adsorbed on the first adsorption surface and the second adsorption surface by the adsorption effect generated by the vacuum generating device, and the transport carrier can bear the solar cell for transporting; the first adsorption surface and the second adsorption surface which are located on the same plane enable the solar cell to be evenly stressed when being adsorbed by the transportation carrier, so that the phenomenon of air leakage in the process of adsorbing the solar cell is avoided, and meanwhile, the damage of the solar cell is avoided. On the other hand, when the size of the solar cell piece that will adsorb and transport changes, only need to rotate first bearing structure and second bearing structure around the rotation axis to adjust the angle of rotation angle for being fit for adsorbing current solar cell piece and can continue to utilize same transport carrier to adsorb and transport, it is thus visible, the transport carrier that this application provided can be compatible not unidimensional, the solar cell piece of different forms when realizing adsorbing the transportation, and the production efficiency is improved, and the production cost is reduced.

Of course, it is not necessary for any product to achieve all of the above-described technical effects simultaneously.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

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

FIG. 1 is a schematic diagram of a prior art Bernoulli chuck half-cell adsorption;

FIG. 2 is a schematic view of another prior art Bernoulli chuck half-cell;

fig. 3 is a top view of a transport vehicle according to an embodiment of the present disclosure in a first condition;

fig. 4 is a top view of a transport vehicle according to an embodiment of the present application in a second condition;

fig. 5 is a top view of a transfer carrier when a carrier body is in a first state according to an embodiment of the present disclosure;

fig. 6 is a top view of the transfer carrier when the carrier body is in the second state according to the embodiment of the present application;

fig. 7 is a side view of a transfer vehicle body in a first state according to an embodiment of the present disclosure.

Detailed Description

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 arrangement of the components and steps, the 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 is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

With the development of photovoltaic technology, the competition of photovoltaic market is becoming more and more intense, the demand for module power of photovoltaic modules is continuously rising, and the size of silicon wafers is gradually increasing to obtain higher cell efficiency. Especially for the technical development of N-type large-size half-cell, the technical reserve is imminent.

FIG. 1 is a schematic diagram of a prior art Bernoulli chuck half-cell adsorption; fig. 2 is a schematic diagram of another bernoulli chuck half-cell prior art.

As shown in fig. 1 and 2, with the increase of the size of the silicon wafer, especially with the existing 210mm whole piece of automation equipment, the bernoulli chuck for carrying the large-size silicon wafer is also large, when half solar cells need to be adsorbed, the bernoulli chuck suitable for the whole solar cells cannot adsorb the half solar cells due to the large size, and when half operations are performed, all the bernoulli chucks in the automation production line and all the processes need to be replaced, which results in too long downtime for debugging, too high chuck cost, and meanwhile, the risk of chuck printing due to the high probability of new chucks.

In order to solve the technical problem, the embodiment of the application provides a transfer carrier for transferring solar cells and a solar cell production line, which are used for being compatible with half solar cells, so that the debugging time is reduced, and the production efficiency is improved.

The following detailed description is to be read in connection with the drawings and the detailed description.

Fig. 3 is a top view of a transport vehicle according to an embodiment of the present disclosure in a first condition; fig. 4 is a top view of a transport vehicle according to an embodiment of the present application in a second condition; fig. 5 is a top view of a transfer carrier when a carrier body is in a first state according to an embodiment of the present disclosure; fig. 6 is a top view of the transfer carrier when the carrier body is in the second state according to the embodiment of the present application; fig. 7 is a side view of a transfer vehicle body in a first state according to an embodiment of the present disclosure.

As shown in fig. 3 to fig. 7, the present embodiment provides a carrier 2 for transporting a solar cell 1, wherein the carrier 2 includes at least two vacuum generating devices 22 and a carrier body 21 for carrying the vacuum generating devices 22; the carrier body 21 comprises a first bearing structure 211 and a second bearing structure 212 which are overlapped up and down, in the overlapped area of the first bearing structure 211 and the second bearing structure 212, the carrier body 21 comprises a first through hole 2111 penetrating through the first bearing structure 211 and a second through hole 2121 penetrating through the second bearing structure 212, the central axis of the first through hole 2111 is coincident with the central axis of the second through hole 2121, and the radial dimension of the first through hole 2111 is the same as that of the second through hole 2121; the transfer vehicle 2 further includes a rotating shaft 23, the rotating shaft 23 penetrates through the first through hole 2111 and the second through hole 2121;

the first bearing structure 211 has a first adsorption surface facing the solar cell 1, the second bearing 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.

In specific implementation, as shown in fig. 3 to 7, when the solar cell 1 needs to be transported, the first bearing structure 211 and the second bearing structure 212 of the transport carrier 2 are overlapped, and under the adsorption action of the vacuum generating device 22, the transport carrier 2 adsorbs the solar cell 1 through the first adsorption surface and the second adsorption surface which are located on the same plane, and then transports; when the size of the solar cell sheet 1 to be absorbed and transferred is changed, the first and second carrying structures 211 and 212 may be rotated around the rotation axis 23 penetrating through the first and second through holes 2111 and 2121 to a suitable angle for absorption and transfer.

As can be seen from the above composition and implementation process of the transportation carrier 2, as shown in fig. 3 to 7, the transportation carrier 2 for transporting the solar cell 1 according to the embodiment of the present application adsorbs the solar cell 1 by the vacuum generator 22 located on the carrier body 21, and transports the solar cell 1 while maintaining the adsorbed state. Specifically, on the one hand, the first bearing structure 211 and the second bearing structure 212 included in the carrier body 21 each have an adsorption surface facing the solar cell 1, when the solar cell 1 is adsorbed, the adsorption effect generated by the vacuum generating device 22 causes the solar cell 1 to be adsorbed on the first adsorption surface and the second adsorption surface, and the transport carrier 2 can carry the solar cell for transport; wherein, the first adsorption face and the second adsorption face relative with solar wafer 1 are located the coplanar for solar wafer 1 can even atress when being adsorbed by transport carrier 2, has avoided the emergence of adsorbing the in-process gas leakage phenomenon of solar wafer 1, has avoided solar wafer 1's damage simultaneously, has improved production efficiency. On the other hand, the first bearing structure 211 and the second bearing structure 212 included in the carrier body 21 are overlapped up and down, and in the overlapped area, the first through hole 2111 penetrating through the first bearing structure 211 and the second through hole 2121 penetrating through the second bearing structure 212 have overlapped central axes and radial dimensions, that is, the first through hole 2111 and the second through hole 2121 are overlapped, so as to be conveniently sleeved with the rotating shaft 23, which is beneficial to smooth rotation of the first bearing structure 211 and the second bearing structure 212; when the size of the solar cell 1 to be adsorbed and transported is changed, for example, when the solar cell 1 in the production line is changed between the whole-piece shape and the half-piece shape, only the first bearing structure 211 and the second bearing structure 212 need to rotate around the rotating shaft 23, and the rotating angle is adjusted to be suitable for adsorbing the current solar cell 1, so that the same transporting carrier 2 can be continuously utilized for adsorption and transportation, therefore, the transporting carrier 2 provided by the embodiment of the application can be compatible with the solar cells 1 in different sizes and different shapes while realizing adsorption and transportation, and is especially compatible with the solar cells 1 in the whole-piece shape and the half-piece shape, so that the shutdown debugging time and the cost required for replacing the transporting carrier 2 are reduced, the damage to the solar cell 1 after replacing a new transporting carrier 2 is avoided, the production efficiency is improved, and the production cost is reduced.

In some examples, the transport vehicle 2 provided in the embodiment of the present application includes at least two vacuum generating devices 22, as shown in fig. 3 and 4, when the number of the vacuum generating devices 22 is two, in this case, one end of the first bearing structure 211 and one end of the second bearing structure 212 overlap up and down, the two vacuum generating devices 22 are respectively disposed near the middle position of the first bearing structure 211 and the second bearing structure 212, and the positions on the first bearing structure 211 and the second bearing structure 212 are the same; the rotation axis 23 penetrates the overlapping area such that the first bearing structure 211 and the second bearing structure 212 can rotate around the overlapping end; in the first case, the extension line of the first bearing structure 211 intersects with the extension line of the second bearing structure 212, and the acute angle formed is large, so that the transportation carrier 2 can adsorb and transport the solar cell 1 with a large size or in a whole shape, and in the second case, the extension line of the first bearing structure 211 intersects with the extension line of the second bearing structure 212, and the acute angle formed is small, so that the transportation carrier 2 can adsorb and transport the solar cell 1 with a small size or in a half shape. When the number of the vacuum generating devices 22 is three, one vacuum generating device 22 may be added to the overlapping area of the first bearing structure 211 and the second bearing structure 212 in the transport carrier 2 as shown in fig. 3 and 4.

In some examples, as shown in fig. 5 and fig. 6, the number of the vacuum generating devices 22 may be set to be at least four, and the vacuum generating devices are uniformly distributed at both ends of the first bearing structure 211 and both ends of the second bearing structure 212, so as to further improve stability and reliability during transportation; the vacuum generating devices 22 on the first bearing structure 211 are symmetrically distributed about the rotating shaft 23, and the vacuum generating devices 22 on the second bearing structure 212 are symmetrically distributed about the rotating shaft 23, so that the adsorption force of the two ends of the first bearing structure 211 and the second bearing structure 212 to the solar cell 1 is equal, the stress of the solar cell 1 during adsorption and transportation is uniform, and air leakage or damage of the solar cell 1 caused by uneven stress is avoided.

It should be noted that, in the embodiment of the present application, the number and the positions of the vacuum generation devices 22 are not limited, for example, when the number of the vacuum generation devices 22 is four, two ends of the first bearing structure 211 and the second bearing structure 212 are respectively distributed with one vacuum generation device 22, and the vacuum generation devices 22 in the first bearing structure 211 and the vacuum generation devices 22 in the second bearing structure 212 are both symmetrically distributed about the rotation axis 23; the number of the vacuum generating devices 22 may also be 8, 12, etc., and the positions are not limited to the positions shown in fig. 5 and 6, which are only examples and not specific limitations.

In some examples, the embodiments of the present application do not limit the specific shape and structure of the first bearing structure and the second bearing structure, and the first bearing structure and the second bearing structure may be a slat-type structure or a frame-type structure, which is only used as an example and is not limited in particular.

It should be noted that, as shown in fig. 5 to fig. 7, since the transportation carrier 2 provided in the embodiment of the present application transports the solar cell 1 by utilizing the absorption effect of the vacuum generating device 22, when adjusting the rotation angles of the first carrying structure 211 and the second carrying structure 212, it is necessary to ensure that the edges of the first carrying structure 211 and the second carrying structure 212 should not exceed the solar cell 1, so as to prevent the solar cell 1 from being damaged or the absorption effect from being poor due to air leakage.

As a possible implementation, as shown in fig. 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 is perpendicular to the extension line of the second carrying structure 212; when the carrier body 21 is in the second state, the extension line of the first carrying structure 211 intersects with the extension line of the second carrying structure 212, and the included angle is a non-right angle.

Based on this, as shown in fig. 5 to 7, when the solar cell 1 to be transported is changed between the full-sheet state and the half-sheet state, the carrier body 21 is also changed in the first state and the second state; when the solar cell 1 to be transported is in a whole shape, the carrier body 21 is in a first state, the extension line of the first bearing structure 211 is perpendicular to the extension line of the second bearing structure 212, a cross-shaped intersection is formed between the first bearing structure 211 and the second bearing structure 212, the projection range on the solar cell 1 is large, and the whole solar cell 1 can be conveniently adsorbed; when the solar cell 1 to be transported is in a half-piece shape, the carrier body 21 is in the second state, the extension line of the first bearing structure 211 is intersected with the extension line of the second bearing structure 212 at the moment, the included angle is a non-right angle, an X-shaped intersection is formed between the first bearing structure 211 and the second bearing structure 212, the projection range on the solar cell 1 is small, and the half-piece solar cell 1 can be conveniently adsorbed. Therefore, the carrier 2 for transportation provided in the embodiment of the present application can change the state of the carrier body 21 through different rotation angles of the first bearing structure 211 and the second bearing structure 212, so as to adapt to solar cells 1 in different shapes, thereby improving the production efficiency and reducing the production cost.

In some examples, the first state and the second state of the carrier body can be suitable for not only the whole-piece state and the half-piece state of the solar cell, but also different sizes of solar cells, for example, when the carrier body is in the first state, the carrier body can be suitable for a solar cell with a larger size, and when the carrier body is in the second state, the carrier body can be suitable for a solar cell with a smaller size.

In some examples, the transport vehicle further comprises a drive member in driving connection with the rotary shaft, the drive member being configured to drive the vehicle body via the rotary shaft between the first state and the second state.

Based on the above, when the size or the form of the solar cell to be transported is changed, the state of the carrier body is correspondingly changed, and the rotation of the first bearing structure and the second bearing structure can be manually realized by manpower or automatically rotated by a mechanical driving mode; when the first bearing structure and the second bearing structure rotate in a mechanical driving mode, the first bearing structure and the second bearing structure can be driven to rotate through the driving piece in driving connection with the rotating shaft, the angle is adjusted, and then the conversion of the carrier body between the first state and the second state is achieved. Therefore, the labor cost is reduced by adopting a mechanical driving mode, the stability is better, and the production efficiency is further improved.

In addition, when the first bearing structure and the second bearing structure are rotated in a mechanical driving mode in actual production, the optimal rotating angle, rotating times and the like can be realized by presetting parameters for the transferred solar cell pieces, production readjustment is avoided, and production efficiency is further improved.

For example, the first bearing structure and the second bearing structure may be driven to rotate by an electric drive or a pneumatic drive, and the driving member may be a motor or a cylinder, which is only exemplary and not limited in particular.

As a possible implementation manner, as shown in fig. 5 to 7, the first bearing structure 211 includes a first overlapping portion 2112, the second bearing structure 212 includes a second overlapping portion 2122, and when the first bearing structure 211 and the second bearing structure 212 are overlapped 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 sheet 1 to the first adsorption surface is greater than or equal to the vertical distance from the side of the second overlapping portion 2122 far away from the solar cell sheet 1 to the second adsorption surface.

Based on this, as shown in fig. 5 to 7, the first carrier structure 211 includes a first overlapping portion 2112 overlapping with the second carrier structure 212, the second carrier structure 212 includes a first overlapping portion 2112 overlapping with the first carrier structure 211, when the first carrier structure 211 and the second carrier structure 212 overlap up and down, the first overlapping portion 2112 is located above the second overlapping portion 2122, that is, in the area where the first carrier structure 211 and the second carrier structure 212 overlap, the first carrier structure 211 is located above the second carrier structure 212; meanwhile, the vertical distance from one side of the first overlapping portion 2112 close to the solar cell piece 1 to the first adsorption surface is set to be greater than or equal to the vertical distance from one side of the second overlapping portion 2122 away from the solar cell piece 1 to the second adsorption surface, so that the first bearing structure 211 and the second bearing structure 212 can be overlapped flatly, the adsorption sides of the first bearing structure 211 and the second bearing structure 212 are prevented from warping or unevenness, the first adsorption surface and the second adsorption surface are ensured to be located on the same plane, uniform adsorption of the solar cell piece 1 is realized, and the production efficiency is improved.

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

Based on this, as shown in fig. 5 to 7, in order to achieve the up-and-down overlapping of the first bearing structure 211 and the second bearing structure 212, the first bearing structure 211 and the second bearing structure 212 in the overlapping region may be clamped to each other, for example, one side of the first overlapping portion 2112 adjacent to the second overlapping portion 2122, which is located above, may be provided in the form of a groove that can accommodate the second overlapping portion 2122, i.e. a first groove 2113; in the extending direction of the first bearing structure 211, the first groove 2113 has a first length, and in the direction perpendicular to the extending direction of the second bearing structure 212, the second overlapping portion 2122 has a second width, the first length is set to be greater than the second width in the embodiment of the present application, that is, when the first bearing structure 211 and the second bearing structure 212 cross in a cross shape, in the extending direction of the first bearing structure 211, a distance is provided between the first groove 2113 of the first overlapping portion 2112 and the second overlapping portion 2122, so that the first bearing structure 211 and the second bearing structure 212 can rotate by using the distance, a projection range of the transfer carrier 2 on the solar cell sheet 1 is adjusted, the transfer carrier 2 is convenient to be compatible with solar cell sheets 1 of different sizes and shapes, production efficiency is improved, and production cost is reduced.

It can be seen that the difference between the first length and the second width can directly affect the rotatable range of the first carrying structure and the second carrying structure, and in the actual production process, if a larger rotatable range is required, the difference between the first length and the second width can be increased. The specific values of the first length and the second width can be adjusted in actual production, and the embodiment of the present application is not limited thereto.

As a possible implementation, the vacuum generating means comprises a bernoulli vacuum device.

Based on this, considering that the solar cell is fragile, the vacuum generating device in the embodiment of the present application may be a bernoulli vacuum device manufactured based on the bernoulli principle, so as to realize non-contact adsorption of the solar cell, softly grab the solar cell, ensure sufficient adsorption force, reduce contact with the solar cell to the maximum extent, reduce loss of the solar cell in the adsorption process, and improve yield and production efficiency.

Illustratively, the bernoulli vacuum apparatus provided by embodiments of the present application can include at least one of a brush-type bernoulli chuck, a sponge-type negative pressure sensing bernoulli chuck, a combination bernoulli chuck, a hole-type chuck, a single bernoulli chuck, a dual-core bernoulli chuck, a t-core bernoulli chuck, a bernoulli square chuck, and the like, by way of example only, and not by way of specific limitation.

In some examples, the bernoulli vacuum apparatus includes an air inlet, an air outlet, and an air chamber in communication with the air inlet and the air outlet, an end of the air inlet is in communication with a beginning of the air outlet, an end of the air outlet is in communication with the outside, and an end of the air outlet is disposed opposite the solar cell sheet.

Based on this, when the vacuum generating device provided in the embodiment of the present application includes the bernoulli vacuum device, the bernoulli vacuum device may include the air inlet and the air outlet, and the end of the air inlet is communicated with the beginning of the air outlet, and the end of the air outlet is communicated with the outside, so as to form a complete passage.

For example, the specific structure of the bernoulli vacuum apparatus and the positions, shapes and numbers of the air inlets and the air outlets are not limited in the embodiments of the present application, and all bernoulli vacuum apparatuses that can be used for adsorbing solar cells at present can be applied to the embodiments of the present application; for example, the air inlet may be located at the center of the bernoulli vacuum apparatus and opposite to the solar cell, or may be located at one side of the bernoulli vacuum apparatus and parallel to the extending direction of the solar cell, or may be located on the same bernoulli vacuum apparatus at the same time, which is merely an example and is not limited in particular.

In some examples, the bernoulli vacuum apparatus further comprises a plenum in communication with the gas inlet and the gas outlet. Based on the structure, after the compressed gas is introduced into the initial end of the air inlet of the Bernoulli vacuum device, the compressed gas can sequentially pass through the tail end of the air inlet, the air chamber and the initial end of the air outlet and is finally sprayed to the outside from the tail end of the air outlet; for the bernoulli vacuum devices respectively located on the first carrying structure or the second carrying structure, each bernoulli vacuum device may have its own independent air chamber, or the air chambers of the bernoulli vacuum devices located at the same end of the first carrying structure or the second carrying structure may be communicated, or all the bernoulli vacuum devices located on the first carrying structure or the second carrying structure may be communicated, which is only an example and is not limited in the present application.

In some examples, the carrier further comprises a buffer structure, and the buffer structure is arranged on one side of the carrier, which faces the solar cell. Therefore, in order to further reduce the damage and deformation of the solar cell, a buffer structure can be arranged on one side of the transfer carrier facing the solar cell, and the adsorption force on the transfer carrier is mainly concentrated near the vacuum generating device, so that the buffer structure can be arranged around the vacuum generating device to reduce the deformation of the solar cell.

For example, the buffer structure may include a brush, a pad, and the like, and the specific material may be rubber, sponge, ceramic, and the like, which are only examples and are not limited in detail.

For example, the embodiment of the present application does not limit the specific number, shape, distribution, and the like of the buffer structures, and the buffer structures are arranged to reduce damage and deformation of the solar cell during specific implementation.

Based on the same inventive concept, the application also provides a solar cell production line, and the solar cell production line comprises the transfer carrier provided by the embodiment. The transport carrier comprises a plurality of Bernoulli vacuum devices, each Bernoulli vacuum device comprises an air inlet, the solar cell production line further comprises at least one air supply device, and the air supply devices are communicated with the air inlets and used for providing compressed air for the Bernoulli vacuum devices.

Compared with the prior art, the beneficial effects of the solar cell production line are the same as the beneficial effects of the transportation carrier provided by the above embodiments, and are not described again here.

In addition, in the solar cell production line provided by the embodiment of the application, when the vacuum generating device included in the transport carrier is a bernoulli vacuum device, at least one air supply device may be disposed in the solar cell production line, and the transport carrier has an adsorption force by supplying compressed air to an air inlet of the bernoulli vacuum device, so as to transport the solar cell. For example, the solar cell production line provided by the embodiment of the present application may include only one gas supply device, which provides compressed gas to all the bernoulli vacuum devices, and at this time, the gas inlets of all the bernoulli vacuum devices may be communicated, or a plurality of branches may be added to the gas supply device to be communicated with each bernoulli device; the solar cell production line may also include a plurality of gas supply devices corresponding to the bernoulli vacuum apparatuses one to one, and may further include a plurality of gas supply devices corresponding to the transport carriers one to one, and the like, which are not limited in the embodiments of the present application.

To sum up, the utility model provides a transport carrier and solar cell production line for transporting solar wafer has realized following beneficial effect at least:

the application provides a transport carrier for transporting solar wafer adsorbs solar wafer through the vacuum generating device that is located on the carrier body to transport solar wafer under the condition that keeps the adsorption state. On one hand, when the solar cell is adsorbed, the solar cell is adsorbed on the first adsorption surface and the second adsorption surface by the adsorption effect generated by the vacuum generating device, and the transport carrier can bear the solar cell for transporting; the first adsorption surface and the second adsorption surface which are located on the same plane enable the solar cell to be evenly stressed when being adsorbed by the transportation carrier, so that the phenomenon of air leakage in the process of adsorbing the solar cell is avoided, and meanwhile, the damage of the solar cell is avoided. On the other hand, when the size of the solar cell piece that will adsorb and transport changes, only need to rotate first bearing structure and second bearing structure around the rotation axis to adjust the angle of rotation angle for being fit for adsorbing current solar cell piece and can continue to utilize same transport carrier to adsorb and transport, it is thus visible, the transport carrier that this application provided can be compatible not unidimensional, the solar cell piece of different forms when realizing adsorbing the transportation, and the production efficiency is improved, and the production cost is reduced.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present 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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