Power injection equipment for photovoltaic module

Abstract

The invention discloses power injection equipment for a photovoltaic module, and relates to the technical field of power injection of photovoltaic modules. A power injection device for a photovoltaic module comprises a rack, a plurality of power injection areas are formed on the rack in the vertical direction, and a bearing device used for bearing and moving the photovoltaic module, a correcting device used for correcting the photovoltaic module and a power injection device used for injecting power to the photovoltaic module are installed in each power injection area on the rack; a feeding and discharging device is further arranged on one side of the machine frame and comprises a frame body arranged on one side of the machine frame, a lifting device is installed on the frame body, a transverse material moving device is installed on the lifting device, and a bearing belt used for bearing a photovoltaic module is installed on the transverse material moving device. And the transverse material moving device is configured to be capable of moving the photovoltaic module into or out of the power injection area. According to the invention, the power injection efficiency of the photovoltaic module can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of photovoltaic module power injection, and in particular to a power injection device for photovoltaic modules. Background Art

[0002] With the growing global demand for clean energy, the photovoltaic industry has developed rapidly. As the core component of the photovoltaic power generation system, the performance and reliability of photovoltaic modules directly affect the power generation efficiency and system life. In the production process of photovoltaic modules, the injection operation is a key link in optimizing its photoelectric conversion performance. By injecting a specific current or voltage into the photovoltaic module, the carriers of the semiconductor material can be activated, the internal electric field distribution can be improved, and thus the power generation efficiency can be improved. Existing injection equipment usually has only one or two injection stations set up in parallel. During injection, the photovoltaic module needs to be moved to the injection station and kept for a period of time to complete the injection. Usually, only one or two photovoltaic module panels can be injected at the same time. The injection efficiency is low, which is not conducive to the mass production of photovoltaic modules. Summary of the Invention

[0003] In order to improve the efficiency of power injection into photovoltaic modules, the present application provides a power injection device for photovoltaic modules.

[0004] The present application provides a photovoltaic module charging device that adopts the following technical solutions: A power injection device for photovoltaic modules, comprising a frame, wherein a plurality of power injection areas are formed vertically on the frame, and a carrying device for carrying and moving photovoltaic modules, a correction device for correcting photovoltaic modules, and a power injection device for injecting power into photovoltaic modules are installed in each power injection area on the frame; a loading and unloading device is also provided on one side of the frame, and the loading and unloading device comprises a frame body provided on one side of the frame, a lifting device is installed on the frame, and a lateral material moving device is installed on the lifting device, and the lateral material moving device comprises a supporting belt for supporting photovoltaic modules, and the lateral material moving device is configured to be able to move photovoltaic modules into or out of the power injection area.

[0005] By adopting the above technical solution, after the photovoltaic module is placed on the support belt, the photovoltaic module can be placed in the charging area by using the lifting device and the lateral material moving device. In this application, since multiple charging areas are provided, the simultaneous charging operation of multiple photovoltaic modules can be automatically realized to improve the charging efficiency. Take the charging of a photovoltaic module as an example: first, the photovoltaic module is made to flow onto the support belt, and then the lateral material moving device and the lifting device are driven to move the photovoltaic module to one of its charging areas. At this time, the photovoltaic module will be located on the supporting device, and then the photovoltaic module will be corrected by the correction device, and then the photovoltaic module can be charged by the charging device.

[0006] Preferably, the injection device includes a mounting base provided on the frame, a vertical driving member is provided on the mounting base, the vertical driving member is detachably connected to a connecting block, the connecting block has a connecting hole, the connecting hole is connected to a connecting column, an injection assembly is slidably connected to the connecting column, and the injection assembly and the connecting column are commonly connected by a spring.

[0007] By adopting the above technical solution, driving the vertical driving part can drive the connecting column to move so that the injection assembly contacts the photovoltaic assembly to inject electricity into the photovoltaic assembly. During this process, the spring can provide the injection assembly with space for micro-movement to avoid the injection assembly rigidly contacting the photovoltaic assembly and causing damage to the photovoltaic assembly structure.

[0008] Preferably, a first mounting hole is formed on the connecting block, a second mounting hole is formed on the output end of the vertical driving member, and the first mounting hole and the second mounting hole are detachably connected to each other with a fastener.

[0009] By adopting the above technical solution, the connection block together with the charging assembly can be disassembled to replace the charging assembly.

[0010] Preferably, the power injection assembly includes a plate body connected to a connecting column, the plate body is connected to a plurality of power injection pieces for injecting power into the photovoltaic assembly, and the plurality of power injection pieces are evenly distributed along the surface direction of the plate body.

[0011] Preferably, the injection component includes a first connection part, a second connection part and a third connection part connected in sequence, the first connection part is connected to the plate body, the second connection part is inclined to the first connection part, the third connection part is also inclined to the second connection part, and the third connection part is connected to the injection block, and the first connection part, the second connection part and the third connection part all have elastic deformation ability or plastic deformation ability.

[0012] By adopting the above technical solution, when the injection block contacts the photovoltaic component, since the second connection part is inclined to the first connection part and the third connection part is also inclined to the second connection part, and the injection part also has elastic deformation ability, this design can prevent the injection block from moving vertically and contacting the photovoltaic component, which is used to avoid stress concentration.

[0013] Preferably, the injection block includes an elastic block portion connected to the third connecting portion, and one end of the elastic block portion away from the third connecting portion has a plurality of interference cone portions, and the plurality of interference cone portions are distributed horizontally and vertically on the third connecting block.

[0014] By adopting the above technical solution, the contact between the interference cone and the photovoltaic module is point contact. The present application can achieve multiple point contacts when injecting electricity into the photovoltaic module.

[0015] Preferably, the carrying device includes a plurality of transverse belt conveyor mechanisms provided on the frame, and the plurality of transverse belt conveyor mechanisms are arranged in parallel.

[0016] Preferably, the correction device includes a first feeding member and a second feeding member arranged on the frame, the first feeding member and the second feeding member are arranged opposite to each other, and the first feeding member and the second feeding member are configured to be located on both sides of the photovoltaic component respectively, the first feeding member is connected to the correction member 1, and the second feeding member is connected to the correction member 2.

[0017] By adopting the above technical solution, driving the first feeding member and the second feeding member can drive the photovoltaic assembly to move back and forth laterally to adjust the position of the photovoltaic assembly.

[0018] Preferably, the first and second correcting members have the same structure; the first correcting member includes a fixed plate connected to the first feeding member, and the fixed plate is connected to a supporting wheel.

[0019] By adopting the above technical solution, while driving the first feed member to drive the supporting wheel to contact the photovoltaic assembly to adjust the position of the photovoltaic assembly, the supporting device can also adjust the position of the photovoltaic assembly, thus shortening the adjustment time.

[0020] In summary, the present invention includes at least one of the following beneficial technical effects: 1. After placing the photovoltaic module on the support belt, the lifting device and the lateral material shifting device can be used to place the photovoltaic module in the charging area. In this application, since multiple charging areas are provided, the simultaneous charging of multiple photovoltaic modules can be automated. Taking the charging of a photovoltaic module as an example: first, the photovoltaic module is moved onto the support belt, and then the lateral material shifting device and the lifting device are driven to move the photovoltaic module into one of the charging areas. At this point, the photovoltaic module is located on the supporting device. The photovoltaic module is then aligned using the alignment device, and then the charging device can be used to charge the photovoltaic module. 2. Driving the vertical driving part can drive the connecting column to move so that the injection assembly contacts the photovoltaic assembly to inject electricity into the photovoltaic assembly. During this process, the spring can provide the injection block with space for micro-movement to avoid the injection assembly rigidly contacting the photovoltaic assembly and causing damage to the photovoltaic assembly structure. In addition, since the second connection part is inclined to the first connection part and the third connection part is also inclined to the second connection part, and the injection part also has elastic deformation ability, the present application can also avoid the injection block from moving vertically and contacting the photovoltaic assembly to avoid stress concentration as much as possible. This design is also used to prevent structural damage to the photovoltaic assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a power injection device for photovoltaic modules in an embodiment of the present application; Figure 2 It is a structural diagram used to reflect the injection area; Figure 3 It is a schematic diagram for reflecting the structure of the carrying device; Figure 4 It is a structural diagram used to reflect the loading and unloading device; Figure 5 It is a schematic diagram for showing the structure of the first and second correction parts; Figure 6 It is a schematic diagram of the structure of the correction device; Figure 7 It is a schematic diagram for reflecting the structure of the injection assembly; Figure 8 It is a structural diagram for reflecting the mounting hole 1; Figure 9 It is a structural diagram used to reflect the injection block.

[0022] The following are marked: 1, frame; 11, charging area; 2, carrying device; 21, transverse belt conveyor mechanism; 3, correcting device; 31, first feeding member; 32, second feeding member; 33, correcting member 1; 331, fixing plate; 332, supporting wheel; 34, correcting member 2; 4, charging device; 41, mounting seat; 42, vertical driving member; 421, mounting hole 2; 43, connecting block; 431, mounting hole 1; 432, connecting hole; 44, connecting column; 45, charging Electrical component; 451, plate; 452, charging part; 4521, first connecting part; 4522, second connecting part; 4523, third connecting part; 4524, charging block; 45241, elastic block part; 45242, contact cone part; 46, spring; 5, loading and unloading device; 51, frame; 52, lifting device; 521, vertical belt conveyor component; 522, base; 53, horizontal material moving device; 531, horizontal belt conveyor component; 54, supporting belt. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] The present application discloses a power injection device for photovoltaic modules. The device is capable of simultaneously injecting power into multiple photovoltaic modules. Typically, the power injection contact surface of a photovoltaic module is a plane.

[0026] Reference Figure 1 、 Figure 2 and Figure 3 A power injection device for photovoltaic modules includes two racks 1, each rack 1 is vertically formed with multiple power injection areas 11, and each rack 1 is equipped with a carrying device 2 for carrying and moving photovoltaic modules, a correction device 3 for correcting the photovoltaic modules, and a power injection device 4 for injecting power into the photovoltaic modules in each power injection area 11.

[0027] Reference Figure 4 A loading and unloading device 5 is also provided between the two racks 1. The loading and unloading device 5 includes a frame 51 provided on one side of the rack 1. The frame 51 is equipped with a lifting device 52. A lateral material moving device 53 is installed on the lifting device 52. The lateral material moving device 53 includes a supporting belt 54 for supporting the photovoltaic components. The lateral material moving device 53 is configured to be able to move the photovoltaic components into or out of the injection area 11.

[0028] Take the example of injecting electricity into a photovoltaic module: first, the external photovoltaic module is made to flow onto the supporting belt 54, and then the lifting device 52 is used to move the photovoltaic module to one side of its injection area 11, and the lateral material moving device 53 is driven to send out the photovoltaic module and the photovoltaic module is received by the carrying device 2. After the photovoltaic module is moved into the injection area 11 by the carrying device 2, the photovoltaic module is corrected by the correction device 3, and then the photovoltaic module can be injected with electricity using the injection device 4.

[0029] Reference Figure 4 The lifting device 52 includes two vertical belt conveyor assemblies 521 arranged on the frame 1, and the two vertical belt conveyor assemblies 521 are connected to a base body 522, and the transverse material moving device 53 is installed on the base body 522; the transverse material moving device 53 includes multiple transverse belt conveyor assemblies 531, and the multiple transverse belt conveyor assemblies 531 are evenly arranged laterally. The vertical belt conveyor assemblies 521 and the transverse belt conveyor assemblies 531 are both existing technologies and will not be repeated here. The multiple transverse belt conveyor assemblies 531 have the functions of moving photovoltaic components and carrying photovoltaic components.

[0030] Reference Figure 2 and Figure 3 The carrying device 2 includes a plurality of transverse belt conveyor mechanisms 21 provided on the frame 1, and the plurality of transverse belt conveyor mechanisms 21 are arranged in parallel.

[0031] Reference Figure 5 and Figure 6The correcting device 3 includes a first feeding member 31 and a second feeding member 32 provided on the frame 1. The first feeding member 31 and the second feeding member 32 are preferably cylinders. The first feeding member 31 and the second feeding member 32 are arranged opposite to each other. The first feeding member 31 and the second feeding member 32 are configured to be located on both sides of the photovoltaic module respectively. The first feeding member 31 is connected to the correcting member 1 33, and the second feeding member 32 is connected to the correcting member 2 34. The first feeding member 31 can drive the correcting member 1 33 to move laterally and the moving direction is perpendicular to the direction in which the photovoltaic module is transported by the transverse belt conveyor mechanism 21. The second feeding member 32 can also drive the correcting member 2 34 to move laterally and the moving direction is also perpendicular to the direction in which the photovoltaic module is transported by the transverse belt conveyor mechanism 21.

[0032] After the photovoltaic assembly is located between the first and second return members 33 and 34 , the first and second feed members 31 and 32 are driven to electrically move the first and second return members 33 and 34 left and right, thereby returning the photovoltaic assembly.

[0033] Reference Figure 5 and Figure 6 The structures of the correcting member 1 33 and the correcting member 2 34 are the same; taking the structure of the correcting member 1 33 as an example: the correcting member 1 33 includes a fixed plate 331 connected to the first feeding member 31, and the fixed plate 331 is connected to a supporting wheel 332 for contacting the photovoltaic module. Since the supporting wheel 332 can rotate, when the correcting member 1 33 corrects the photovoltaic module, the photovoltaic module can also be easily transported and moved by the transverse belt conveyor mechanism 21, and the supporting wheel 332 will rotate at this time.

[0034] Reference Figure 7 and Figure 8 The injection device 4 includes a mounting base 41 provided on the frame 1. The mounting base 41 is provided with a vertical drive member 42, which is preferably a cylinder. The vertical drive member 42 is detachably connected to a connecting block 43. Specifically, a first mounting hole 431 is provided on the connecting block 43, and a plurality of second mounting holes 421 are provided on the output end of the vertical drive member 42. The first mounting hole 431 and the second mounting hole 421 are detachably connected to fasteners, which can change the installation position of the connecting block 43. The connecting block 43 has a connecting hole 432, which is connected to a connecting column 44. An injection assembly 45 is slidably connected to the connecting column 44. A spring 46 is provided between the injection assembly 45 and the connecting column 44. One end of the spring 46 is connected to the injection assembly 45, and the other end is connected to the connecting column 44, so that the injection assembly 45 can slide along the setting direction of the connecting column 44.

[0035] After the photovoltaic component is located in the injection area 11, the vertical driving member 42 is driven to drive the injection component 45 to move downward to contact the photovoltaic component, and the spring 46 will be compressed. On the one hand, the spring 46 enables the injection component 45 to be pressed against the photovoltaic component, and on the other hand, it is also used to prevent the injection component 45 from rigidly contacting the photovoltaic component and causing the photovoltaic component structure to be damaged.

[0036] Reference Figure 7 Specifically, the charging assembly 45 includes a plate body 451 connected to the connecting column 44, and the plate body 451 is connected to a plurality of charging parts 452 for charging the photovoltaic assembly, and the plurality of charging parts 452 are evenly distributed horizontally and vertically along the surface direction of the plate body 451.

[0037] Reference Figure 7 The charging component 452 includes a first connection part 4521, a second connection part 4522 and a third connection part 4523 connected in sequence. The first connection part 4521, the second connection part 4522 and the third connection part 4523 are an integral part and are made of deformable metal. The first connection part 4521 is connected to the plate body 451, the second connection part 4522 is inclined to the first connection part 4521, and the third connection part 4523 is also inclined to the second connection part 4522. The third connection part 4523 is connected to the charging block 4524. Typically, the angle between the second connection part 4522 and the first connection part 4521 and the angle between the third connection part 4523 and the second connection part 4522 are both right angles.

[0038] In this embodiment, the first connection portion 4521 , the second connection portion 4522 and the third connection portion 4523 all have elastic deformation capabilities.

[0039] In this embodiment, when the vertical driving member 42 is driven to drive the injection assembly 45, that is, the injection block 4524 to contact the photovoltaic assembly, since the first connection part 4521, the second connection part 4522, and the third connection part 4523 all have elastic deformation capabilities and the second connection part 4522 is inclined to the first connection part 4521, and the third connection part 4523 is inclined to the second connection part 4522, the injection block 4524 has micro-motion capability compared to the plate body 451. Based on this, on the one hand, it can avoid the injection block 4524 from contacting the photovoltaic assembly too vertically and causing stress concentration. On the other hand, when the injection contact surface of the photovoltaic assembly is uneven, the injection block 4524 can adaptively contact the photovoltaic assembly to ensure stable injection.

[0040] In other embodiments, the first connection portion 4521 , the second connection portion 4522 , and the third connection portion 4523 all have plastic deformation capabilities.

[0041] When the contact surface of the photovoltaic module for charging is curved or severely uneven, when the vertical drive member 42 is driven to drive the charging assembly 45, i.e., the charging block 4524, into contact with the photovoltaic module, the first connecting portion 4521, the second connecting portion 4522, and the third connecting portion 4523 will plastically deform. The angles between the first connecting portion 4521 and the second connecting portion 4522, as well as the angles between the second connecting portion 4522 and the third connecting portion 4523, may change, thereby adaptively adjusting to an appropriate configuration, which can be subsequently maintained. Of course, the user can apply force to the charging member 452 before charging to change its configuration.

[0042] Reference Figure 7 and Figure 9 In order to make the contact between the injection component 452 and the photovoltaic module a multi-point contact and the multiple contact points can be adaptively distributed based on the shape of the contact surface of the photovoltaic module, the injection block 4524 includes an elastic block portion 45241 connected to the third connection portion 4523, and the elastic block portion 45241 has a plurality of interference cone portions 45242 at one end away from the third connection portion 4523. The plurality of interference cone portions 45242 are distributed horizontally and vertically on the elastic block portion 45241. In this embodiment, the interference cone portion 45242 is in the shape of a quadrangular pyramid.

[0043] When the plurality of interfering cones 45242 contact the photovoltaic module, due to the deformability of the elastic block portion 45241, the plurality of interfering cones 45242 will be adaptively distributed based on the shape of the photovoltaic module's electrical contact surface, which may be, for example, an arc surface. It should be noted that to implement the interfering cones 45242 as electrical contact components for the photovoltaic module, conductive adhesive, welding tape, or conductive coatings may be utilized. Alternatively, the third connecting portion 4523 may be directly connected to the interfering cones 45242, and then power supplied to the third connecting portion 4523 to power the interfering cones 45242. The specific method for achieving electrical conductivity is not limited.

[0044] The implementation principle of a power injection device for photovoltaic modules in the embodiment of the present application is as follows: First, the external photovoltaic modules are moved onto the support belt 54, and then the vertical belt conveyor assembly 521 is driven to move the photovoltaic modules up to the side of the injection area 11, and the transverse belt conveyor assembly 531 is driven to deliver the photovoltaic modules and receive the photovoltaic modules using the transverse belt conveyor mechanism 21; After the photovoltaic assembly is located between the first and second return members 33 and 34, the first and second feed members 31 and 32 are driven to electrically move the first and second return members 33 and 34 left and right to return the photovoltaic assembly. Then, the vertical driving member 42 is driven to move the plurality of contact cones 45242 downward to contact the photovoltaic module. At this time, the spring 46 will be compressed, and the contact cones 45242 can be used to inject electricity into the photovoltaic module.

[0045] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power injection device for photovoltaic modules, characterized by: The invention comprises a frame (1), wherein a plurality of charging areas (11) are formed vertically on the frame (1), and a carrying device (2) for carrying and moving photovoltaic modules, a straightening device (3) for straightening the photovoltaic modules, and a charging device (4) for charging the photovoltaic modules are installed in each charging area (11) on the frame (1); a loading and unloading device (5) is also provided on one side of the frame (1), and the loading and unloading device (5) comprises a frame body (51) provided on one side of the frame (1), a lifting device (52) is installed on the frame body (51), and a lateral material moving device (53) is installed on the lifting device (52), and the lateral material moving device (53) comprises a supporting belt (54) for supporting the photovoltaic modules, and the lateral material moving device (53) is configured to be able to move the photovoltaic modules into or out of the charging area (11).

2. The power injection device for photovoltaic modules according to claim 1, characterized in that: The injection device (4) includes a mounting seat (41) provided on a frame (1), a vertical driving member (42) provided on the mounting seat (41), the vertical driving member (42) being detachably connected to a connecting block (43), the connecting block (43) being provided with a connecting hole (432), the connecting hole (432) being connected to a connecting column (44), an injection assembly (45) being slidably connected to the connecting column (44), and the injection assembly (45) and the connecting column (44) being commonly connected to a spring (46).

3. The power injection device for photovoltaic modules according to claim 2, characterized in that: The connecting block (43) is provided with a first mounting hole (431), the output end of the vertical driving member (42) is provided with a second mounting hole (421), and the first mounting hole (431) and the second mounting hole (421) are detachably connected to each other with a fastener.

4. The power injection device for photovoltaic modules according to claim 2, characterized in that: The injection assembly (45) comprises a plate body (451) connected to a connecting column (44); the plate body (451) is connected to a plurality of injection pieces (452) for injecting electricity into the photovoltaic assembly; the plurality of injection pieces (452) are evenly distributed along the surface direction of the plate body (451).

5. The power injection device for photovoltaic modules according to claim 4, characterized in that: The injection component (452) includes a first connection part (4521), a second connection part (4522) and a third connection part (4523) connected in sequence, wherein the first connection part (4521) is connected to the plate body (451), the second connection part (4522) is inclined to the first connection part (4521), and the third connection part (4523) is also inclined to the second connection part (4522). The third connection part (4523) is connected to the injection block (4524), and the first connection part (4521), the second connection part (4522) and the third connection part (4523) all have elastic deformation ability or plastic deformation ability.

6. The power injection device for photovoltaic modules according to claim 5, characterized in that: The injection block (4524) includes an elastic block portion (45241) connected to the third connection portion (4523), and the elastic block portion (45241) has a plurality of contact cone portions (45242) at one end away from the third connection portion (4523). The plurality of contact cone portions (45242) are distributed horizontally and vertically on the third connection block (43).

7. The power injection device for photovoltaic modules according to claim 1, characterized in that: The carrying device (2) comprises a plurality of transverse belt conveying mechanisms (21) arranged on the frame (1), and the plurality of transverse belt conveying mechanisms (21) are arranged in parallel.

8. The power injection device for photovoltaic modules according to claim 7, characterized in that: The correcting device (3) comprises a first feeding member (31) and a second feeding member (32) provided on the frame (1); the first feeding member (31) and the second feeding member (32) are arranged opposite to each other; the first feeding member (31) and the second feeding member (32) are configured to be located on both sides of the photovoltaic module, respectively; the first feeding member (31) is connected to a first correcting member (33); and the second feeding member (32) is connected to a second correcting member (34).

9. The power injection device for photovoltaic modules according to claim 8, characterized in that: The first return member (33) and the second return member (34) have the same structure; the first return member (33) includes a fixed plate (331) connected to the first feed member (31), and the fixed plate (331) is connected to a supporting wheel (332).

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