Photovoltaic cell transportation system

Abstract

The utility model relates to a photovoltaic cell transportation system, which is used for transporting cells in a first workshop to a second workshop, and comprises a corridor transportation unit, which is connected between the first workshop and the second workshop and comprises a first corridor conveying line and a second corridor conveying line; the first transportation unit is arranged in the first workshop and comprises a first cache conveying station, a first conveying line and a second conveying line, and the first conveying line and the second conveying line are connected between the first cache conveying station and the corridor transportation unit; and the second transportation unit is arranged in the second workshop and comprises a second temporary storage conveying station, a third conveying line and a fourth conveying line, and the third conveying line and the fourth conveying line are connected between the second temporary storage conveying station and the corridor transportation unit. According to the scheme, the battery pieces in the first workshop can be directly conveyed to the second workshop, the no-load tools in the second workshop automatically return to the first workshop, direct caching, automatic material receiving and automatic material sending of the battery pieces and the no-load tools can be achieved, the production efficiency of the battery pieces is improved, the purpose of rapid workshop production is achieved, and the workload of workers is reduced.

Description

Technical Field

[0001] This application relates to the technical field of photovoltaic cells, and particularly to a photovoltaic cell transportation system. Background Art

[0002] The production of solar cells requires processing in multiple technological processes. Different processing processes are usually carried out in different processing workshops, and each processing workshop usually operates independently and lacks connection, resulting in extremely cumbersome transfer of cells or wafers. For example, after the wafers are processed in the slicing workshop, they need to be manually loaded into foam boxes, then packed in whole trays and transported to the warehouse. The battery workshop needs to receive the corresponding type of wafers from the warehouse according to the production plan. After receiving, the trays are manually unpacked and the wafers are taken out of the foam boxes and placed in a special carrier, and then the carrier with the wafers is manually transported to the texturing feeding. The whole process requires operations such as boxing, packing, warehousing, outbound, unboxing, and manual recycling of foam boxes, which is time-consuming and laborious, and the production efficiency is low. Utility Model Content

[0003] Based on this, the present utility model provides a photovoltaic cell transportation system to solve the problem that the transfer process of photovoltaic cells between different workshops is cumbersome, time-consuming and laborious, resulting in low production efficiency of the cells.

[0004] A photovoltaic cell transportation system provided by the present utility model is used to transport the cells of the first workshop to the second workshop. The photovoltaic cell transportation system includes:

[0005] A corridor transportation unit, which is connected between the first workshop and the second workshop. The corridor transportation unit includes a first corridor conveyor line for conveying in the direction from the first workshop to the second workshop and a second corridor conveyor line for conveying in the direction from the second workshop to the first workshop;

[0006] A first transportation unit, which is arranged in the first workshop. The first transportation unit includes a first buffer conveyor station, a first conveyor line connecting the first buffer conveyor station and the first corridor conveyor line, and a second conveyor line connecting the first buffer conveyor station and the second corridor conveyor line. The first buffer conveyor station is used to convey the full carriers to the first conveyor line and buffer and output the empty carriers conveyed by the second conveyor line;

[0007] A second transportation unit, which is arranged in the second workshop. The second transportation unit includes a second buffer conveyor station, a third conveyor line connecting the second buffer conveyor station and the first corridor conveyor line, and a fourth conveyor line connecting the second buffer conveyor station and the second corridor conveyor line. The second buffer conveyor station is used to buffer and output the full carriers conveyed by the third conveyor line and convey the empty carriers to the fourth conveyor line.

[0008] In one embodiment, the corridor transportation unit is erected in the air between the first workshop and the second workshop.

[0009] In one embodiment, the first buffer conveying station includes a first conveying layer, a second conveying layer, a plurality of first buffer layers, and a first buffer elevator that can be docked with the first conveying layer, the second conveying layer, and the first buffer layers;

[0010] The first conveying layer is connected to the first conveying line for conveying full carriers;

[0011] The second conveying layer is connected to the second conveying line for conveying empty carriers;

[0012] The first buffer elevator is used to transfer full carriers between the first buffer layer and the first conveying layer and to transfer empty carriers between the second conveying layer and the first buffer layer.

[0013] In one embodiment, the first conveying layer, the second conveying layer, and the first buffer layers are each horizontally separated into left and right parts;

[0014] The first buffer elevator is disposed within the horizontal separation. The first buffer elevator includes a first buffer lifting layer, a second buffer lifting layer, and a first driving mechanism. The first driving mechanism is used to drive the first buffer lifting layer and the second buffer lifting layer to lift, so as to realize the docking of the first buffer lifting layer and the second buffer lifting layer with the left and right parts of the first conveying layer, the second conveying layer, and each of the first buffer layers.

[0015] In one embodiment, the first transportation unit is connected to the corridor transportation unit through a first corridor elevator;

[0016] The first corridor elevator includes a first corridor lifting layer, a second corridor lifting layer, and a second driving mechanism for driving the first corridor lifting layer and the second corridor lifting layer to lift. When the first corridor lifting layer and the second corridor lifting layer are at a first height, they are respectively connected to the first corridor conveying line and the second corridor conveying line. When at a second height, they are respectively connected to the first conveying line and the second conveying line.

[0017] In one embodiment, the first transportation unit further includes a ground conveying line, an air conveying line, and a transfer elevator;

[0018] The air conveying line includes a first upper conveying line connected to the first conveying layer and a first lower conveying line connected to the second conveying layer;

[0019] The ground conveyor line extends along each loading station in the first workshop, and the ground conveyor line includes a second upper conveyor line and a second lower conveyor line;

[0020] The transfer elevator is used to transfer fully loaded carriers between the first upper conveyor line and the second upper conveyor line and to transfer empty carriers between the first lower conveyor line and the second lower conveyor line.

[0021] In one embodiment, the second buffer conveyor station includes a third conveyor layer, a fourth conveyor layer, a plurality of second buffer layers, and a second buffer elevator that can be docked with the third conveyor layer, the fourth conveyor layer, and the second buffer layers;

[0022] The third conveyor layer is used to output fully loaded carriers, the fourth conveyor layer is used to input empty carriers, and the second buffer layers are used to buffer fully loaded carriers;

[0023] The second buffer elevator is used to transfer the fully loaded carriers on the third conveyor line to the third conveyor layer or the second buffer layers, or to transfer the empty carriers on the fourth conveyor layer to the fourth conveyor line, or to transfer the fully loaded carriers on the second buffer layers to the third conveyor layer.

[0024] In one embodiment, the second buffer conveyor station further includes an automatic feeding port connected to the third conveyor line, an automatic discharging port connected to the fourth conveyor line, and a manual feeding and discharging port for manual feeding and discharging;

[0025] The second buffer elevator can be docked with the automatic feeding port, the automatic discharging port, and the manual feeding and discharging port.

[0026] In one embodiment, the second buffer elevator includes a third lifting layer, a fourth lifting layer, and a third driving mechanism for driving the third lifting layer and the fourth lifting layer to lift.

[0027] In one embodiment, the second transportation unit is connected to the corridor transportation unit through a second corridor elevator;

[0028] The second corridor elevator includes a third corridor lifting layer, a fourth corridor lifting layer, and a fourth driving mechanism for driving the third corridor lifting layer and the fourth corridor lifting layer to lift. When the third corridor lifting layer and the fourth corridor lifting layer are at the third height, they are respectively connected to the first corridor conveyor line and the second corridor conveyor line, and when they are at the fourth height, they are respectively connected to the third conveyor line and the fourth conveyor line.

[0029] The technical solution provided by the present utility model has at least the following beneficial effects:

[0030] This photovoltaic cell transportation system establishes a direct connection between the first workshop and the second workshop through the first transportation unit, the second transportation unit, and the corridor transportation unit. It can directly transfer the cells in the first workshop to the second workshop, and the empty carriers after being used in the second workshop can automatically return to the first workshop for recycling. Moreover, it can directly cache, automatically receive, and automatically deliver the cells and empty carriers through the first buffer conveyor station and the second buffer conveyor station, eliminating operations such as manual packing, warehousing, outbound, and unpacking, improving the production efficiency of the cells, achieving the goal of rapid production in the workshop, and reducing the workload of personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. is a schematic structural diagram of the photovoltaic cell transportation system in an embodiment;

[0032] Figure 2 FIG. is a schematic structural diagram of the connection between the corridor transportation unit and the first transportation unit and the second transportation unit of the photovoltaic cell transportation system in an embodiment;

[0033] Figure 3 FIG. is a schematic structural diagram of the first buffer station of the photovoltaic cell transportation system in an embodiment;

[0034] Figure 4 FIG. is a schematic structural diagram of the second buffer station of the photovoltaic cell transportation system in an embodiment;

[0035] Figure 5 FIG. is a schematic structural diagram of the first corridor elevator of the photovoltaic cell transportation system in an embodiment;

[0036] Figure 6 FIG. is a schematic structural diagram of the second corridor elevator of the photovoltaic cell transportation system in an embodiment.

[0037] The reference numerals in the drawings of the specification include: corridor transportation unit 1, first corridor conveyor line 101, second corridor conveyor line 102, first transportation unit 2, first buffer conveyor station 201, first conveyor layer 2011, second conveyor layer 2012, first buffer layer 2013, first buffer elevator 2014, first buffer elevator layer 20141, second buffer elevator layer 20142, first conveyor line 202, second conveyor line 203, ground conveyor line 204, aerial conveyor line 205, transfer elevator 206, second transportation unit 3, second buffer conveyor station 301, third conveyor layer 3011, fourth conveyor layer 3012, second buffer layer 3013, second buffer elevator 3014, third buffer elevator layer 30141, fourth buffer elevator layer 30142, automatic feeding port 3015, automatic discharging port 3016, manual loading and unloading port 3017, third conveyor line 302, fourth conveyor line 303, first corridor elevator 4, first corridor elevator layer 401, second corridor elevator layer 402, second corridor elevator 5, third corridor elevator layer 501, fourth corridor elevator layer 502, second workshop 6, first workshop 7. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0039] It should be noted that the diagrams provided in this embodiment only illustrate the basic concept of the present utility model in a schematic manner.

[0040] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present utility model can be implemented. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present utility model.

[0041] The orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "middle", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc. cited in this specification is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] An embodiment of the present utility model provides a photovoltaic cell transportation system for transporting the cells in the first workshop to the second workshop. The photovoltaic cell transportation system includes:

[0043] A corridor transportation unit, which is connected between the first workshop and the second workshop. The corridor transportation unit includes a first corridor conveyor line for conveying in the direction from the first workshop to the second workshop and a second corridor conveyor line for conveying in the direction from the second workshop to the first workshop;

[0044] A first transportation unit, which is arranged in the first workshop. The first transportation unit includes a first buffer conveyor station, a first conveyor line connecting the first buffer conveyor station and the first corridor conveyor line, and a second conveyor line connecting the first buffer conveyor station and the second corridor conveyor line. The first buffer conveyor station is used to convey the full carriers to the first conveyor line and buffer and output the empty carriers conveyed by the second conveyor line;

[0045] A second transportation unit, which is arranged in the second workshop. The second transportation unit includes a second buffer conveyor station, a third conveyor line connecting the second buffer conveyor station and the first corridor conveyor line, and a fourth conveyor line connecting the second buffer conveyor station and the second corridor conveyor line. The second buffer conveyor station is used to buffer and output the full carriers conveyed by the third conveyor line and convey the empty carriers to the fourth conveyor line.

[0046] The working principle of this transportation system is as follows:

[0047] Cell transfer: The full carriers loaded with cells in the first workshop 7 are conveyed to the first buffer conveyor station 201 manually or automatically for buffering or directly sending. The first buffer conveyor station 201 conveys the full carriers to the first conveyor line 202, and the first conveyor line 202 then conveys the full carriers to the corridor transportation unit. The corridor transportation unit then transfers the full carriers to the second workshop 6 through the first corridor conveyor line 101. Then, the third conveyor line 302 connected to the first corridor conveyor line 101 conveys the full carriers to the second buffer conveyor station 301 for buffering. When the second workshop 6 needs cells, the second buffer conveyor station 301 outputs the buffered full carriers.

[0048] Empty carrier recovery: The empty carriers used in the second workshop 6 are conveyed to the second buffer conveyor station 301 manually or automatically for buffering or directly sending. The second buffer conveyor station 301 conveys the empty carriers to the fourth conveyor line 303, and the fourth conveyor line 303 then conveys the empty carriers to the corridor transportation unit. The corridor transportation unit then transfers the empty carriers to the first workshop 7 through the second corridor conveyor line 102. Then, the second conveyor line 203 connected to the second corridor conveyor line 102 conveys the empty carriers to the first buffer conveyor station 201 for buffering. When the first workshop 7 needs empty carriers, the first buffer conveyor station 201 outputs the buffered empty carriers.

[0049] The utility model establishes a direct connection between the first workshop 7 and the second workshop 6 through the first transportation unit 2, the second transportation unit 3 and the corridor transportation unit 1, which can realize the direct transfer of solar cell wafers from the first workshop 7 to the second workshop 6. The empty carriers after being used in the second workshop 6 can automatically return to the first workshop 7 for recycling. Moreover, the direct buffering, automatic material collection and automatic material delivery of solar cell wafers and empty carriers can be realized through the first buffer conveying station 201 and the second buffer conveying station 301, eliminating operations such as manual packing, warehousing, outbound, and unpacking, improving the production efficiency of solar cell wafers, achieving the purpose of rapid production in the workshop, and reducing the workload of personnel.

[0050] The transportation system for photovoltaic cell wafers provided by the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0051] Figure 1 It is a schematic structural diagram of the transportation system for photovoltaic cell wafers provided by at least one embodiment of the utility model. Refer to Figure 1 , the transportation system for photovoltaic cell wafers includes a corridor transportation unit 1, a first transportation unit 2 and a second transportation unit 3.

[0052] In this embodiment, the corridor transportation unit 1 is connected between the first workshop 7 and the second workshop 6 and is used to realize the back-and-forth transfer of solar cell wafers and carriers between the first workshop 7 and the second workshop 6. It should be noted that in this embodiment, the first workshop 7 and the second workshop 6 can be any two processing workshops with process relevance, and this embodiment does not limit this. For example, the first workshop 7 can be a slicing workshop, and the second workshop 6 can be a solar cell wafer workshop.

[0053] Furthermore, refer to Figure 2 , the corridor transportation unit 1 is erected in the air between the first workshop 7 and the second workshop 6, which can realize the aerial transfer of solar cell wafers and empty carriers between the first workshop 7 and the second workshop 6. The design of the aerial corridor can achieve the transportation diversion between the air and the ground. Without affecting the normal passage of personnel and vehicles in the park, it alleviates the congestion of the ground transportation space and also ensures the continuous and stable transfer of solar cell wafers, improving the transmission efficiency.

[0054] Refer to Figure 2 , in this embodiment, the corridor transportation unit 1 includes a first corridor conveyor line 101 and a second corridor conveyor line 102. Among them, the first corridor conveyor line 101 is arranged to convey in the direction from the first workshop 7 to the second workshop 6, so as to realize the direct transfer of solar cell wafers from the first workshop 7 to the second workshop 6; the second corridor conveyor line 102 is arranged to convey in the direction from the second workshop 6 to the first workshop 7, so as to realize the direct transfer of the empty carriers from the second workshop 6 to the first workshop 7. Specifically, both the first corridor conveyor line 101 and the second corridor conveyor line 102 can be conveyor belt mechanisms.

[0055] Further, in this embodiment, the first corridor conveyor line 101 and the second corridor conveyor line 102 are independently arranged without interference, enabling the independent operation of the transmission of solar cells and the transmission of empty carriers, resulting in more stable and efficient transmission. For example, the first corridor conveyor line 101 and the second corridor conveyor line 102 can be arranged side by side, or vertically opposite, or diagonally opposite. Refer to Figure 2 , which exemplarily shows an embodiment where the first corridor conveyor line 101 is arranged directly above the second corridor conveyor line 102.

[0056] In some embodiments, in order to improve the transportation capacity of the corridor transportation unit 1 and enhance the transmission efficiency of solar cells and empty carriers, the corridor transportation unit 1 can be provided with two or more sets of conveyor lines, such as two sets, three sets, four sets of corridor conveyor lines, etc. Figure 1 Exemplarily shows an embodiment where the corridor transportation unit 1 is provided with three sets of the first corridor conveyor line 101 and the second corridor conveyor line 102.

[0057] Refer to Figure 1 and Figure 2 , in this embodiment, the first transportation unit 2 is arranged in the first workshop 7 and includes a first buffer conveyor station 201, a first conveyor line 202, and a second conveyor line 203, which are used to transport the full carriers loaded with solar cells to the corridor transportation unit 1, and receive the empty carriers transported by the corridor transportation unit 1 for buffering or output.

[0058] Among them, refer to Figure 3 , the first buffer conveyor station 201 includes a buffer rack, and the buffer rack is provided with a first conveyor layer 2011, a second conveyor layer 2012, a plurality of first buffer layers 2013, and a first buffer elevator 2014. The first conveyor layer 2011 and the second conveyor layer 2012 are the top two layers in the buffer rack, and are respectively used to convey full carriers and empty carriers. Specifically, the first end of the first conveyor layer 2011 is the feeding end for receiving full carriers. For example, the feeding end of the first conveyor layer 2011 can be connected to an external conveyor line or the full carriers can be fed manually; the second end of the first conveyor layer 2011 is the discharging end and is connected to the first conveyor line 202 to convey the full carriers to the first conveyor line 202. The first end of the second conveyor layer 2012 is the discharging end for outputting empty carriers. For example, the discharging end of the second conveyor layer 2012 can be connected to an external conveyor line or the empty carriers can be discharged manually; the second end of the second conveyor layer 2012 is the feeding end and is connected to the second conveyor line 203 to receive the empty carriers conveyed by the second conveyor line 203. Among them, the first ends of the first conveyor layer 2011 and the second conveyor layer 2012 can be understood as Figure 3 the left ends shown inFigure 3 right end shown.

[0059] See also Figure 3 , multiple first cache layers 2013 are evenly spaced and distributed below the second conveying layer 2012, for caching full loads and empty loads. The number of first cache layers 2013 can be determined according to the production capacity of the workshop. The greater the production capacity, the more the number of first cache layers 2013 can be set. Figure 3 It is only shown by way of example that the first cache delivery station 201 has five first cache layers 2013 .

[0060] In this embodiment, the first buffer elevator 2014 is used to realize the transfer of full loads between the first buffer layer 2013 and the first conveying layer 2011, and the transfer of empty loads between the second conveying layer 2012 and the first buffer layer 2013, so as to realize buffer feeding and buffer discharging. Figure 3 The first conveying layer 2011, the second conveying layer 2012 and the first cache layer 2013 are separated into two parts by a horizontal interval. The first cache elevator 2014 is arranged in the horizontal interval, which includes a first cache lifting layer 20141, a second cache lifting layer 20142 and a first driving mechanism. The first driving mechanism is used to drive the first cache lifting layer 20141 and the second cache lifting layer 20142 to rise and fall. In this way, when the first driving mechanism drives the first cache lifting layer 20141 and the second cache lifting layer 20142 to rise and fall, the first cache lifting layer 20141 and the second cache lifting layer 20142 can be docked with the first conveying layer 2011, the second conveying layer 2012 and the first cache layer 2013 on the left and right parts, so that full loads and empty loads can be transferred to any cache layer through the first cache lifting layer 20141 and the second cache lifting layer 20142, and full loads and empty loads of any cache layer can also be transferred to the first conveying layer 2011 and the second conveying layer 2012, thereby realizing cache feeding and cache discharging. It should be understood that in the present embodiment, the first cache elevator 2014 also includes a support frame for supporting the first cache lifting layer 20141, the second cache lifting layer 20142 and the first driving mechanism, and conventional components such as vertical guide rails that provide guidance for the lifting and lowering of the first cache lifting layer 20141 and the second cache lifting layer 20142, which are not described in detail in the present embodiment. The first driving mechanism can be a synchronous belt linear driving mechanism, a ball screw linear driving mechanism, a linear module, etc.

[0061] See also Figure 3, in this embodiment, the first conveying layer 2011, the second conveying layer 2012, the first buffer layer 2013, the first buffer lifting layer 20141 and the second buffer lifting layer 20142 are all composed of conveyor belt mechanisms. For example, the first conveying layer 2011, the second conveying layer 2012 and the first buffer layer 2013 are all spliced by a plurality of conveyor belt mechanisms, and the first buffer lifting layer 20141 and the second buffer lifting layer 20142 are both composed of one conveyor belt mechanism. Moreover, the conveying directions of each conveyor belt mechanism can be programmed to facilitate the feeding and discharging of the first buffer conveying station 201. For example, when the first conveying layer 2011 feeds, the conveying direction is to the right, when the second conveying layer 2012 feeds, the conveying direction is to the left, when the buffer layer feeds and buffers, the conveying direction is away from the first buffer elevator 2014, and when the buffer discharges, the conveying direction is towards the first buffer elevator 2014.

[0062] In this embodiment, the first conveying line 202 connects the first buffer conveying station 201 and the first corridor conveying line 101, so that the full carriers conveyed by the first buffer conveying station 201 can be conveyed to the first corridor conveying line 101 through the first conveying line 202; the second conveying line 203 connects the first buffer conveying station 201 and the second corridor conveying line 102, so that the empty carriers conveyed by the second corridor conveying line 102 can be conveyed to the first buffer conveying station 201 through the second conveying line 203 for buffering or output. Specifically, refer to Figure 2 , both the first conveying line 202 and the second conveying line 203 are composed of horizontal conveyor belt mechanisms, and a first corridor elevator 4 is also provided between the first conveying line 202, the second conveying line 203 and the corridor transportation unit 1. Refer to Figure 5 , the first corridor elevator 4 includes a first corridor lifting layer 401, a second corridor lifting layer 402 and a second driving mechanism for driving the first corridor lifting layer 401 and the second corridor lifting layer 402 to lift. In this way, when the second driving mechanism drives the first corridor lifting layer 401 and the second corridor lifting layer 402 to rise to the first height, they are respectively connected to the first corridor conveying line 101 and the second corridor conveying line 102, so as to convey the full carriers on the first corridor lifting layer 401 to the first corridor conveying line 101 and convey the empty carriers of the second corridor conveying line 102 to the second corridor lifting layer 402; when the second driving mechanism drives the first corridor lifting layer 401 and the second corridor lifting layer 402 to descend to the second height, they are respectively connected to the first conveying line 202 and the second conveying line 203, so as to convey the full carriers on the first conveying line 202 to the first corridor lifting layer 401 and convey the empty carriers on the second corridor lifting layer 402 to the second conveying line 203. Similarly, in this embodiment, the first corridor elevator 4 also includes conventional components such as a support frame and a guide rail, which will not be elaborated here. The second driving mechanism can be a synchronous belt linear driving mechanism, a ball screw linear driving mechanism, a linear module, etc.

[0063] Furthermore, referring to Figure 1 , a ground conveyor line 204, an overhead conveyor line 205 and a transfer elevator 206 are also provided in the first workshop 7. Among them, the ground conveyor line 204 extends along each loading station in the first workshop 7 and specifically includes an upper and a lower conveyor line composed of a conveyor belt mechanism, namely a second upper conveyor line and a second lower conveyor line (not shown in the figure). The overhead conveyor line 205 is arranged between the ground conveyor line 204 and the first buffer conveyor station 201, and it also includes an upper and a lower conveyor line composed of a conveyor belt mechanism, namely a first upper conveyor line and a first lower conveyor line (not shown in the figure). Among them, one end of the first upper conveyor line is docked with the feeding end of the first conveyor layer 2011 of the first buffer conveyor station 201, and one end of the first lower conveyor line is docked with the discharging end of the second conveyor layer 2012 of the first buffer conveyor station 201. The other end of the overhead conveyor line 205 is connected to the ground conveyor line 204 through the transfer elevator 206. The transfer elevator 206 is used to transfer the full carriers between the upper conveyor lines of the ground conveyor line 204 and the overhead conveyor line 205, and transfer the empty carriers between the lower conveyor lines of the ground conveyor line 204 and the overhead conveyor line 205. Its specific structure can refer to the structure of the first corridor elevator 4 and will not be elaborated here. With such an arrangement, when the battery wafers are transferred, the full carriers on the loading stations are transferred to the second upper conveyor line of the ground conveyor line 204 manually or mechanically. The second upper conveyor line transports the battery wafers to the transfer elevator 206 and the transfer elevator 206 transfers them to the first upper conveyor line of the overhead conveyor line 205, and the first upper conveyor line transports the battery wafers to the first conveyor layer 2011 of the first buffer conveyor station 201; when the empty carriers are recycled, the second conveyor layer 2012 of the first buffer conveyor station 201 transports the empty carriers to the first lower conveyor line of the overhead conveyor line 205, the first lower conveyor line transports the empty carriers to the transfer elevator 206 and the transfer elevator 206 transfers them to the second lower conveyor line of the ground conveyor line 204, and then the second lower conveyor line transports the empty carriers to each loading station.

[0064] Referring to Figure 1 and Figure 2 , the second transportation unit 3 is arranged in the second workshop 6 and includes a second buffer conveyor station 301, a third conveyor line 302 and a fourth conveyor line 303, which are used to buffer or output the full carriers transported by the corridor transportation unit 1 and transport the empty carriers used up in the second workshop 6 to the corridor transportation unit 1.

[0065] Among them, referring to Figure 4, the second cache conveying station 301 also includes a cache rack, in which a third conveying layer 3011, a fourth conveying layer 3012, a plurality of second cache layers 3013 and a second cache elevator 3014 are arranged. The third conveying layer 3011 and the fourth conveying layer 3012 are the two lowest layers in the cache rack, and are used to convey full loads and empty loads, respectively. Among them, the first end of the third conveying layer 3011 is the battery cell discharge end for outputting full loads, for example, the battery cell discharge end of the third conveying layer 3011 can be docked with an external AGV trolley; the second end of the third conveying layer 3011 is the battery cell feed end, and the feed is transferred through the second cache elevator 3014. The first end of the fourth conveying layer 3012 is the empty carrier feed end for inputting empty carriers, for example, the empty carrier is transported to the empty carrier feed end by an external AGV trolley to realize feeding; the second end of the fourth conveying layer 3012 is the empty carrier discharge end, and the discharge is transferred through the second cache elevator 3014. The first ends of the third transport layer 3011 and the fourth transport layer 3012 can be understood as Figure 4 The left end shown, the second end of the third transport layer 3011 and the fourth transport layer 3012 can be understood as Figure 4 right end shown.

[0066] See also Figure 4 , multiple second cache layers 3013 are evenly spaced above the third conveying layer 3011, and are used to cache full loads and empty loads. The number of second cache layers 3013 can be determined according to the production capacity of the workshop. The greater the production capacity, the more the number of second cache layers 3013 can be set. Figure 4 It is only shown by way of example that the second cache delivery station 301 has six second cache layers 3013 .

[0067] See also Figure 4 In this embodiment, the right end of the second cache conveying station 301 is also provided with an automatic feed port 3015, an automatic discharge port 3016 and a manual feed port 3017, wherein the automatic feed port 3015 is used for automatic feeding of full loads, the automatic discharge port 3016 is used for automatic discharging of empty loads, and the manual feed port 3017 is used for manual feeding and discharging of full loads and empty loads, so as to facilitate manual placement of battery cells and carriers when the first workshop 7 stops production, thereby ensuring the normal operation of the second workshop 6.

[0068] In this embodiment, the second buffer elevator 3014 is used to transfer full or empty carriers between the second buffer layer 3013, the third conveying layer 3011, the fourth conveying layer 3012, the automatic feeding port 3015, the automatic discharging port 3016, and the manual feeding and discharging port 3017, so as to realize the buffer feeding and buffer discharging of the second buffer conveying station 301. For example, the full carrier at the automatic feeding port 3015 is transferred to the second buffer layer 3013 or the third conveying layer 3011 by the second buffer elevator 3014; for example, the full carrier at the second buffer layer 3013 is transferred to the third conveying layer 3011 by the second buffer elevator 3014; for another example, the empty carrier at the fourth conveying layer 3012 is transferred to the automatic discharging port 3016 by the second buffer elevator 3014. Specifically, refer to Figure 4 , the second buffer elevator 3014 is arranged between each buffer layer, each conveying layer and each feeding and discharging port, and specifically includes a third buffer lifting layer 30141, a fourth buffer lifting layer 30142, and a third driving mechanism for driving the third buffer lifting layer 30141 and the fourth buffer lifting layer 30142 to lift. The working principle of the second buffer elevator 3014 is the same as that of the first buffer elevator 2014, and will not be elaborated here.

[0069] Similarly, in this embodiment, the lifting layers of the third conveying layer 3011, the fourth conveying layer 3012, the second buffer layer 3013, and the second buffer elevator 3014 are all composed of conveyor belt mechanisms.

[0070] In some embodiments, the number of the second buffer conveying stations 301 can also be set to two, three, four, etc. Figure 1 Exemplarily, two second buffer conveying stations 301 are shown. Such a setting can increase the buffer capacity of the battery wafers in the second workshop 6 and better meet the demand for the quantity of battery wafers in the second workshop 6.

[0071] In this embodiment, the third conveying line 302 connects the automatic feeding port 3015 of the second buffer conveying station 301 and the first corridor conveying line 101, so that the full carrier conveyed by the first corridor conveying line 101 can be conveyed to the second buffer conveying station 301 through the third conveying line 302; the fourth conveying line 303 connects the automatic discharging port 3016 and the second corridor conveying line 102, so that the empty carrier output from the automatic discharging port 3016 can be conveyed to the second corridor conveying line 102 through the fourth conveying line 303 for recycling.

[0072] Specifically, refer to Figure 2, in this embodiment, both the third conveyor line 302 and the fourth conveyor line 303 are composed of horizontal conveyor belts, and a second corridor elevator 5 is provided between them and the corridor transportation unit 1. The second corridor elevator 5 is used to transfer the fully loaded carriers between the third conveyor line 302 and the first corridor conveyor line 101, and the empty carriers between the fourth conveyor line 303 and the second corridor conveyor line 102. Refer to Figure 5 , the second corridor elevator 5 includes a third corridor lifting layer 501, a fourth corridor lifting layer 502, and a fourth driving mechanism for driving the third corridor lifting layer 501 and the fourth corridor lifting layer 502 to lift. When the third corridor lifting layer 501 and the fourth corridor lifting layer 502 are at the third height, they are respectively connected to the first corridor conveyor line 101 and the second corridor conveyor line 102, and when at the fourth height, they are respectively connected to the third conveyor line 302 and the fourth conveyor line 303. The working principle of the second corridor elevator 5 is the same as that of the first corridor elevator 4, and will not be elaborated here.

[0073] Based on the second transportation unit 3 designed with the above structure, when transporting battery wafers, the fully loaded carriers transported by the first corridor conveyor line 101 are transported to the third conveyor line 302 by the second corridor elevator 5, and then transmitted by the third conveyor line 302 to the automatic feeding port 3015 of the second buffer conveyor station 301. Then, the fully loaded carriers at the automatic feeding port 3015 are transferred to the second buffer layer 3013 for buffering by the second buffer elevator 3014. When a battery wafer demand instruction is issued from other workstations in the second workshop 6, the battery wafers on the second buffer layer 3013 are transferred to the third conveyor layer 3011 by the second buffer elevator 3014 again. The third conveyor layer 3011 conveys the battery wafers to the left to the exit for transfer by the AGV cart. When transferring empty carriers, the AGV cart puts the empty carriers into the fourth conveyor layer 3012 through the inlet. The fourth conveyor layer 3012 conveys the empty carriers to the right, and then the second buffer elevator 3014 transfers the empty carriers to the automatic discharging port 3016. The fourth conveyor line 303 receives the empty carriers output from the automatic discharging port 3016 and conveys them to the second corridor elevator 5. The second corridor elevator 5 transfers the empty carriers to the second corridor conveyor line 102, and is conveyed back to the first workshop 7 by the second corridor conveyor line 102.

[0074] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0075] The above embodiments only illustrate several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A photovoltaic cell transport system for transporting cells from a first workshop (7) to a second workshop (6), characterized in that: The photovoltaic cell transport system comprises: A corridor transport unit (1) connected between the first workshop (7) and the second workshop (6), the corridor transport unit (1) comprising a first corridor conveying line (101) for transporting from the first workshop (7) to the second workshop (6) and a second corridor conveying line (102) for transporting from the second workshop (6) to the first workshop (7); a first transport unit (2) disposed in the first workshop (7), the first transport unit (2) comprising a first buffer conveying station (201), a first conveying line (202) connecting the first buffer conveying station (201) and the first corridor conveying line (101), and a second conveying line (203) connecting the first buffer conveying station (201) and the second corridor conveying line (102), the first buffer conveying station (201) being used to convey full loads to the first conveying line (202) and to buffer and output empty loads conveyed by the second conveying line (203); A second transport unit (3) is arranged in the second workshop (6), the second transport unit (3) comprises a second cache conveying station (301), a third conveying line (302) connecting the second cache conveying station (301) and the first corridor conveying line (101), and a fourth conveying line (303) connecting the second cache conveying station (301) and the second corridor conveying line (102), the second cache conveying station (301) being used for caching and outputting full loads conveyed from the third conveying line (302) and conveying empty loads to the fourth conveying line (303).

2. The photovoltaic cell transport system according to claim 1, characterized in that: The corridor transport unit (1) is installed in the air between the first workshop (7) and the second workshop (6).

3. The photovoltaic cell transport system according to claim 2, characterized in that: The first cache conveying station (201) comprises a first conveying layer (2011), a second conveying layer (2012), a plurality of first cache layers (2013), and a first cache elevator (2014) capable of docking with the first conveying layer (2011), the second conveying layer (2012), and the first cache layer (2013); The first conveying layer (2011) is connected to the first conveying line (202) for conveying full loads; The second conveying layer (2012) is connected to the second conveying line (203) for conveying empty carriers; The first cache elevator (2014) is used to realize the transfer of full loads between the first cache layer (2013) and the first conveying layer (2011) and the transfer of empty loads between the second conveying layer (2012) and the first cache layer (2013).

4. The photovoltaic cell transport system according to claim 3, characterized in that: The first transport layer (2011), the second transport layer (2012) and the first cache layer (2013) are each separated into left and right parts by a horizontal interval; The first cache elevator (2014) is arranged in the horizontal interval, and the first cache elevator (2014) includes a first cache lifting layer (20141), a second cache lifting layer (20142) and a first driving mechanism, and the first driving mechanism is used to drive the first cache lifting layer (20141) and the second cache lifting layer (20142) to rise and fall, so as to achieve the docking of the first cache lifting layer (20141) and the second cache lifting layer (20142) with the first conveying layer (2011) and the second conveying layer (2012) on the left and right parts and the first cache layers (2013).

5. The photovoltaic cell transport system according to claim 2, characterized in that: The first transport unit (2) is connected to the corridor transport unit via a first corridor elevator (4); The first corridor elevator (4) comprises a first corridor elevator layer (401), a second corridor elevator layer (402) and a second driving mechanism for driving the first corridor elevator layer (401) and the second corridor elevator layer (402) to rise and fall; when the first corridor elevator layer (401) and the second corridor elevator layer (402) are located at a first height, they are respectively connected to the first corridor conveying line (101) and the second corridor conveying line (102); when they are located at a second height, they are respectively connected to the first conveying line (202) and the second conveying line (203).

6. The photovoltaic cell transport system according to claim 4, characterized in that: The first transport unit (2) further comprises a ground conveying line (204), an aerial conveying line (205) and a transfer elevator (206); The aerial conveying line (205) comprises a first upper conveying line connected to the first conveying layer (2011) and a first lower conveying line connected to the second conveying layer (2012); The ground conveyor line (204) is arranged to extend along each material platform in the first workshop (7), and the ground conveyor line (204) includes a second upper conveyor line and a second lower conveyor line; The transfer elevator (206) is used to realize the transfer of full loads between the first upper conveying line and the second upper conveying line and the transfer of empty loads between the first lower conveying line and the second lower conveying line.

7. The photovoltaic cell transport system according to claim 2, characterized in that: The second cache conveying station (301) comprises a third conveying layer (3011), a fourth conveying layer (3012), a plurality of second cache layers (3013), and a second cache elevator (3014) capable of docking with the third conveying layer (3011), the fourth conveying layer (3012), and the second cache layer (3013); The third conveying layer (3011) is used to output full loads, the fourth conveying layer (3012) is used to input empty loads, and the second buffer layer (3013) is used to buffer full loads; The second cache elevator (3014) is used to transfer the full load of the third conveying line (302) to the third conveying layer (3011) or the second cache layer (3013), or to transfer the empty load of the fourth conveying layer (3012) to the fourth conveying line (303), or to transfer the full load of the second cache layer (3013) to the third conveying layer (3011).

8. The photovoltaic cell transport system according to claim 7, characterized in that: The second buffer conveying station (301) further comprises an automatic feed port (3015) connected to the third conveying line (302), an automatic discharge port (3016) connected to the fourth conveying line (303), and a manual feed port (3017) for manual feed and discharge; The second cache elevator (3014) can be docked with the automatic feed port (3015), the automatic discharge port (3016) and the manual feed port (3017).

9. The photovoltaic cell transport system according to claim 8, characterized in that: The second cache elevator (3014) includes a third cache lifting layer (30141), a fourth cache lifting layer (30142), and a third driving mechanism for driving the third cache lifting layer (30141) and the fourth cache lifting layer (30142) to rise and fall.

10. The photovoltaic cell transport system according to claim 7, characterized in that: The second transport unit (3) is connected to the corridor transport unit (1) via a second corridor elevator (5); The second corridor elevator (5) comprises a third corridor elevator layer (501), a fourth corridor elevator layer (502) and a fourth driving mechanism for driving the third corridor elevator layer (501) and the fourth corridor elevator layer (502) to rise and fall. When the third corridor elevator layer (501) and the fourth corridor elevator layer (502) are located at a third height, they are respectively connected to the first corridor conveying line (101) and the second corridor conveying line (102); when they are located at a fourth height, they are respectively connected to the third conveying line (302) and the fourth conveying line (303).

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