Photovoltaic module and photovoltaic module array

Abstract

The invention provides a photovoltaic module and a photovoltaic module array, relates to the technical field of photovoltaics, and aims to solve the technical problem of low reliability of the photovoltaic module. The photovoltaic module comprises a laminated piece, a frame and a rigid electric connecting piece, the frame comprises a supporting part with a cavity, and the top wall of the cavity is supported at the edge part of the back surface of the laminated piece; the laminated piece comprises a bus bar, the bus bar is provided with an extension section extending out of the laminated piece, the extension section penetrates through the top wall and extends into the cavity, the electric connecting piece is connected with the extension section in the cavity, and the second end of the electric connecting piece penetrates through the first side wall of the cavity and extends out of the frame to be electrically connected with another photovoltaic module. According to the photovoltaic module, rigid electric connection can be formed between the photovoltaic modules by using the rigid electric connecting pieces, so that the impact resistance of the photovoltaic module is improved, and the photovoltaic module is suitable for offshore photovoltaic projects.

Description

Technical Field

[0001] The present invention relates to the field of photovoltaic technology, and in particular to a photovoltaic module and a photovoltaic module array. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] As a new energy utilization and resource development model, offshore photovoltaics have the characteristics of high power generation and less land occupation. Offshore photovoltaics face complex and harsh service environments, such as strong winds and waves and typhoons in the southern waters, which means that offshore photovoltaics have higher requirements for the reliability of photovoltaic modules. Summary of the invention

[0004] The purpose of the present invention is to provide a photovoltaic module and a photovoltaic module array to solve the technical problem of low reliability of photovoltaic modules.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a photovoltaic module, comprising a laminate, a frame and a rigid electrical connector, wherein the frame comprises a support portion having a cavity, the top wall of the cavity being supported on an edge portion of a back side of the laminate;

[0007] The laminate includes a bus bar, which has an extension section extending out of the laminate, the extension section extends through the top wall into the cavity, the electrical connector is connected to the extension section in the cavity, and the second end of the electrical connector extends through the first side wall of the cavity and out of the frame.

[0008] According to at least one embodiment of the present invention, the frame is an electrically insulating frame; or,

[0009] The extension section and the electrical connector are electrically isolated from the frame respectively.

[0010] According to at least one embodiment of the present invention, the second end of the electrical connector has a mortise and tenon structure.

[0011] According to at least one embodiment of the present invention, a mortise and tenon groove is formed at a portion of the electrical connector close to the second end, and a tenon matching the mortise and tenon groove is formed at the second end of the electrical connector.

[0012] According to at least one embodiment of the present invention, the first end of the electrical connector is further connected to a fixing member, the fixing member has a first end surface facing the electrical connector, and the orthographic projection of the electrical connector on the first end surface is located within the first end surface;

[0013] The first end surface is electrically connected to or electrically insulated from the electrical connector.

[0014] According to at least one embodiment of the present invention, the extension section has a through hole, the extension section is sleeved on the electrical connector through the through hole and fixed between the first side wall and the fixing member, and the first end surface is electrically connected to the electrical connector.

[0015] According to at least one embodiment of the present invention, the cavity further has a second side wall opposite to the first side wall, and the second side wall has an opening communicating with the cavity;

[0016] One end of the fixing member facing away from the electrical connector is fixed in the opening.

[0017] According to at least one embodiment of the present invention, a groove is formed on a second end surface of the fixing member facing away from the electrical connector.

[0018] According to at least one embodiment of the present invention, the frame further comprises a third side wall opposite to the side of the laminate, and a guide structure is further provided on the third side wall, and the guide structure protrudes from the inner wall surface of the third side wall.

[0019] The guide structure includes a guide groove and a guide member located above the guide groove, wherein the guide groove extends from a position opposite to the bus bar in the laminate toward the top wall.

[0020] According to at least one embodiment of the present invention, the bus bar has two extending sections, and the two extending sections are respectively located on two opposite sides of the laminate.

[0021] In a second aspect, the present invention further provides a photovoltaic component array, comprising a plurality of photovoltaic components according to the first aspect, wherein two adjacent photovoltaic components are electrically connected via corresponding electrical connectors.

[0022] Among the one or more technical solutions provided in the exemplary embodiments of the present invention, at least one of the following beneficial effects can be achieved.

[0023] The photovoltaic assembly of the exemplary embodiment of the present invention includes a laminate and a frame, and the busbar in the laminate is led out from the side thereof to form an extension section, and the extension section passes through the support part of the frame supporting the laminate and enters the cavity, specifically, passes through the top wall of the cavity of the support part and enters the cavity of the support part. The first end of the rigid electrical connector is electrically connected to the extension section in the cavity, and the second end of the electrical connector passes through the first side wall of the cavity and extends out of the frame, that is, extends toward the direction of another photovoltaic assembly to be electrically connected to the photovoltaic assembly, so that a rigid electrical connection is formed between the two photovoltaic assemblies through the electrical connector, so that the connection of the photovoltaic assembly array is more reliable. Compared with the prior art, the electrical connection between the two photovoltaic assemblies needs to be formed through a junction box set on the photovoltaic assembly, and the current is drawn out from the junction box using a flexible cable and an electrical connection plug to form an electrical connection between the two photovoltaic assemblies. The photovoltaic assembly of the exemplary embodiment of the present invention can use a rigid electrical connector to form a rigid connection between the photovoltaic assemblies, thereby improving the impact resistance, and is particularly suitable for offshore photovoltaic projects in harsh service environments.

[0024] Furthermore, compared with the prior art photovoltaic modules that generally use three junction boxes to form an electrical connection with the busbar, the two junction boxes on the two sides of the three junction boxes use cables and electrical connection plugs to draw out current, while the junction box in the middle is used to protect and connect the circuit, and does not need to use cables and electrical connection plugs to draw out current. Therefore, the junction boxes on both sides are larger in size than the junction box in the middle. The three junction boxes of the photovoltaic module of the exemplary embodiment of the present invention do not need to use cables and electrical connection plugs to draw out current, and can all use smaller junction boxes, which can reduce the production cost of photovoltaic modules. For offshore photovoltaic construction in the early stage, the commercial value is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention, and these drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification;

[0026] Figure 1 is a schematic structural diagram of a laminate according to an embodiment of the present invention;

[0027] Figure 2 is a schematic cross-sectional structural diagram of a laminate according to an embodiment of the present invention;

[0028] Figure 3 is a schematic cross-sectional structural diagram of a photovoltaic assembly array according to an embodiment of the present invention;

[0029] Figure 4 is a schematic cross-sectional structural diagram of a photovoltaic module according to an embodiment of the present invention;

[0030] Figure 5 yes Figure 4 A magnified view of part A;

[0031] Figure 6 is a schematic diagram of a top view of a guide structure according to an embodiment of the present invention;

[0032] Figure 7 is a schematic diagram of an axonometric structure of an electrical connector according to an embodiment of the present invention;

[0033] Figure 8 is an isometric structural schematic diagram of a laminate and a junction box according to an embodiment of the present invention;

[0034] Fig. 9 2 is a schematic diagram of the isometric structure of a junction box according to an embodiment of the present invention.

[0035] Reference numerals:

[0036] 11. fixing member; 111. first end surface; 112. second end surface; 112a. groove; 12. electrical connector; 121. tenon; 122. tenon groove;

[0037] 20, cavity; 21, top wall; 22, second side wall; 221, opening; 231, first side wall; 231a, first hole; 232, third side wall;

[0038] 30. bus bar; 31. extension section; 311. through hole;

[0039] 40. Laminated parts;

[0040] 50. guide structure; 51. guide plate; 52. guide member;

[0041] 60. Junction box; 61. Pointing part. DETAILED DESCRIPTION

[0042] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] In the related art, the bus bars in the laminate of the photovoltaic module are electrically connected and circuit protected through three junction boxes. In order to lead the current out of the laminate, it is necessary to connect cables and electrical connection plugs to the two junction boxes on both sides. When multiple photovoltaic modules need to be electrically connected to each other to form a photovoltaic power station, the impact resistance of the above-mentioned cable connection method is limited, the reliability is poor, and it is difficult to adapt to harsh service environments, such as strong winds and waves, typhoons and other environments in offshore photovoltaic power stations.

[0044] In view of the above problems, in the photovoltaic module provided by an exemplary embodiment of the present invention, the bus bar extends out of the laminate and enters the cavity of the support part of the frame, and passes through the rigid electrical connector to extend out of the frame, so that a rigid electrical connection can be formed with other photovoltaic modules, replacing the connection method of connecting the wire harnesses from the junction boxes between the photovoltaic modules, so as to improve the impact resistance of the photovoltaic module.

[0045] Figure 1 is a schematic structural diagram of a laminate according to an embodiment of the present invention; Figure 2 is a schematic cross-sectional structural diagram of a laminate according to an embodiment of the present invention. As Figure 1 and Figure 2 shown, in the laminate 40 of the photovoltaic module provided by an exemplary embodiment of the present invention, the bus bar 30 laminated in the middle of the laminate 40 is extended so that it extends out of one side of the laminate 40 for current conduction, rather than using wire harnesses to conduct current from the two junction boxes 60 located on both sides and electrically connected to the bus bar 30.

[0046] Figure 3 is a schematic cross-sectional structural diagram of a photovoltaic module array according to an embodiment of the present invention; Figure 4 is a schematic cross-sectional structural diagram of a photovoltaic module according to an embodiment of the present invention. As Figure 3 and Figure 4 shown, the photovoltaic module provided by an exemplary embodiment of the present invention includes a laminate 40, a frame, and a rigid electrical connector 12. The frame includes a support part having a cavity 20, and the top wall 21 of the cavity 20 supports the edge part of the back surface of the laminate 40; the laminate 40 includes a bus bar 30, and the bus bar 30 has an extension section 31 extending out of the laminate 40. The extension section 31 penetrates through the top wall 21 and extends into the cavity 20. The electrical connector 12 is connected to the extension section 31 in the cavity 20, and the second end penetrates through the first side wall 231 of the cavity 20 and extends out of the frame.

[0047] In practical applications, the frame of the photovoltaic module can use the frame type in the prior art. For example, the top wall 21, the third side wall 232 of the cavity 20, and the clamping part (also called the A surface) connected to the top of the third side wall 232 together form a "C"-shaped structure. When the laminate 40 is clamped into the accommodating cavity of the "C"-shaped structure, the "C"-shaped structure covers the circumferential edge part of the laminate 40, which can play a role in sealing and protecting the laminate 40. The support part provides necessary mechanical support for the photovoltaic module, maintaining the stability and integrity of the photovoltaic module. Specifically, the support part is formed by the first side wall 231, the top wall 21, the second side wall 22, and the corresponding bottom wall, and the support part has a cavity 20 surrounded by the first side wall 231, the top wall 21, the second side wall 22, and the bottom wall. Among them, the first side wall 231 and the third side wall 232 together form the side surface of the frame (also called the B surface).

[0048] A second hole is formed in the supporting part, i.e., the top wall 21 of the cavity 20, to penetrate through the accommodating cavity of the "C"-shaped structure and the cavity 20. A first hole 231a is formed in the first side wall 231 of the cavity 20 to communicate the cavity 20 with the external environment on the side of the frame. When the laminate 40 is snapped into the accommodating cavity of the "C"-shaped structure, the extending section 31 of the bus bar 30 extending from the laminate 40 enters the cavity 20 through the second hole. In the cavity 20, an electrical connection is formed between the first end or the middle part of the electrical connector 12 and the extending section 31, and the second end of the rigid electrical connector 12 extends out of the external environment on the side of the frame through the first hole 231a. The second end of the electrical connector 12 can form a rigid electrical connection with the electrical connectors 12 of other photovoltaic modules. Compared with the cable electrical connection between two photovoltaic modules in the prior art, the rigid electrical connector 12 has high connection reliability and can resist the impact of harsh environments.

[0049] Exemplarily, the electrical connector 12 and the extending section 31 can be welded to form a good electrical conduction effect; the electrical connector 12 can be fixed in the first hole 231a of the first side wall 231 by an interference fit.

[0050] It should be understood that the frame of the photovoltaic module can be made of a metal material. In order to achieve electrical isolation between the electrical connector 12, the extending section 31 and the frame, an insulating layer can be coated on the contact parts between the electrical connector 12 and the frame and between the extending section 31 and the frame. Insulating sleeves can also be provided in the first hole 231a and the second hole to achieve electrical isolation from the frame. At the same time, the insulating sleeves have a certain elasticity and can also play a certain role in sealing and waterproofing.

[0051] In another alternative embodiment, the frame can adopt an electrically insulating frame, such as a plastic material, a glass fiber reinforced composite material, etc. In this embodiment, the electrical connector 12 and the extending section 31 do not need to be insulated, and at the same time, it has better corrosion resistance and lower preparation cost compared with a metal frame.

[0052] Considering the impact resistance of the connection between the electrical connectors 12 of two photovoltaic modules, the second end of the electrical connector 12 in the exemplary embodiment of the present invention has a mortise and tenon structure. Through the mutual cooperation of the mortise and tenon structures of the two electrical connectors 12, and the electrical connector 12 can be made of a conductive metal material, not only an effective electrical connection is formed, but also a rigid physical connection can be formed.

[0053] For example, the electrical connectors 12 of two photovoltaic modules are the same, as Figure 7 shown, where Figure 7It is a schematic diagram of the isometric structure of the electrical connector according to an embodiment of the present invention. The electrical connector 12 is a circular rod, and a mortise 122 is provided at a portion near the second end thereof, and a tenon 121 matching the mortise 122 is formed at the second end of the electrical connector 12. When two electrical connectors 12 are connected, the tenon 121 of one electrical connector 12 is embedded in the mortise 122 of the other electrical connector 12 to form a mortise and tenon connection structure that fits together. On the basis of forming an electrical connection, the impact resistance is also strong, and it is also easy to disassemble, which is convenient for maintenance of photovoltaic modules. Furthermore, when the electrical connectors 12 of each photovoltaic module are consistent, standardized production can be carried out to reduce production costs.

[0054] In another optional embodiment, the second ends of the two electrical connectors 12 adopt a mortise and tenon structure of a wedge-nail tenon, where the wedge-nail tenon is to divide the end of a round rod into two tenons 121, and the two tenons 121 are overlapped in an inverted embrace manner and fit together. A tongue-shaped protruding tenon can also extend from the end of the tenon 121, which is embedded in the groove of the bottom end face of the other tenon 121 so that it cannot move up and down. Then a square hole is opened in the middle of the overlap, and a wedge nail with a square cross section is inserted so that it cannot move left and right, thereby achieving a tight joint. By way of example, the electrical connector 12 can also be a square or other shaped rod in addition to a round rod.

[0055] The electrical connector 12 in the photovoltaic assembly provided by the exemplary embodiment of the present invention can further enhance its impact resistance by means of a fixing member 11 disposed at a first end of the electrical connector 12 .

[0056] For example, Figure 3 and Figure 7 As shown, the fixing member 11 has a first end face 111 facing the electrical connector 12, and the orthographic projection of the electrical connector 12 on the first end face 111 is located inside the first end face 111; the extension section 31 is attached to the first end face 111 of the fixing member 11, and the first end face 111 is electrically conductive or insulated from the electrical connector 12.

[0057] When the electrical connector 12 is circular, the fixing member 11 can also be circular, and the diameter of the electrical connector 12 is smaller than the diameter of the fixing member 11, and the two form a stepped shaft. The electrical connector 12 is adapted to the first hole 231a, and the size of the fixing member 11 is larger than the first hole 231a, so that the fixing member 11 can prevent the electrical connector 12 from escaping from the first side wall 231 in the cavity 20, thereby enhancing the impact resistance. On the other hand, the fixing member 11 can be integrally formed with the electrical connector 12 and both are made of metal, and the two can be electrically conductive, and the extension section 31 can be attached to the first end face 111 of the fixing member 11 while forming an electrical connection with the electrical connector 12, for example, by welding, so that the extension section 31 of the busbar 30 and the electrical connector 12 (the first end face 111 of the fixing member 11) are in large-area electrical contact, which reduces resistance and is more impact-resistant.

[0058] Exemplarily, the fixing member 11 may also be made of plastic material and electrically insulated from the electrical connector 12 ; or the fixing member 11 may be made of plastic material and a metal layer may be plated or attached to the first end face 111 to form electrical conduction with the electrical connector 12 .

[0059] In some embodiments, Figure 3 and Figure 4 As shown, the extension section 31 has a through hole 311 , and the extension section 31 is sleeved on the electrical connector 12 through the through hole 311 , and is fixed between the first side wall 231 and the fixing member 11 .

[0060] Since the extension section 31 enters the cavity 20 downward along the inner wall surface of the third side wall 232 and the inner wall surface of the first side wall 231, the extension section 31 can be sleeved on the electrical connector 12 and clamped between the inner wall surface of the first side wall 231 and the first end surface 111 of the fixing member 11 through the fixing member 11. In this embodiment, there is no need to weld the extension section 31 and the fixing member 11. By clamping the fixing member 11 and the first side wall 231, the extension section 31 can be attached to the first end surface 111 of the fixing member 11, and then form a reliable electrical connection with the electrical connector 12, saving the manufacturing process.

[0061] In some embodiments, Figure 4 As shown, the cavity 20 also has a second side wall 22 opposite to the first side wall 231, and the second side wall 22 has an opening 221 communicating with the cavity 20. Figure 3 As shown, one end of the fixing member 11 facing away from the electrical connector 12 is fixed in the opening 221 .

[0062] The opening 221 coincides with the central axis of the first hole 231a, and the fixing member 11 can be fixed in the opening 221 by interference fit. For example, the fixing member 11 can be coated with an insulating layer or an insulating sleeve or a waterproof sealing material. When the fixing member 11 is fixed in the opening 221, on the one hand, it can enhance the fixing effect between the electrical connector 12 and the support portion, and on the other hand, it can block the opening 221 to achieve a sealing effect. At the same time, the opening 221 in the second side wall 22 is also convenient for the assembly and maintenance of the fixing member 11, the electrical connector 12 and the extension section 31.

[0063] like Figure 7 As shown, a groove 112a is provided on the second end face 112 of the fixing member 11 away from the electrical connector 12. By way of example, since the opening 221 can expose the second end face 112 of the fixing member 11 away from the electrical connector 12, and the groove 112a can be a slot or a cross slot, etc., the circular fixing member 11 can be rotated by a corresponding screwdriver to drive the mortise and tenon structure of the electrical connector 12 to rotate, and the mortise and tenon structures of the respective electrical connectors 12 of the two photovoltaic modules can be conveniently engaged together. By way of example, an insulating heat shrink tubing can be used to provide waterproof protection for the exposed parts of the two electrical connectors 12 connected together.

[0064] Figure 5 yes Figure 4 A magnified view of part A; Figure 6 FIG. 5 is a schematic diagram of a top view of a guide structure 50 according to an embodiment of the present invention. Figure 5 and Figure 6 As shown, the frame also includes a third side wall 232 opposite to the side of the photovoltaic laminate 40, and a guide structure 50 is also provided on the third side wall 232. The guide structure 50 protrudes from the inner wall surface of the third side wall 232. The guide structure 50 includes a guide groove and a guide member 52 located above the guide groove. The guide groove extends from a position opposite to the bus bar 30 in the laminate 40 to the top wall 21.

[0065] In practical applications, the guide groove is formed by two guide plates 51 arranged at intervals on the inner wall surface of the third side wall 232, and a guide groove extending from top to bottom is formed between the two guide plates 51. The guide member 52 is arranged on the inner wall surface of the third side wall 232, and is located above the guide groove, and is higher than the position of the bus bar 30. Exemplarily, the plane of the guide member 52 facing the guide groove can be a slope or an arc surface, extending from top to bottom in a direction away from the side surface of the laminate 40.

[0066] When the laminate 40 is snapped into the receiving cavity of the "C"-shaped structure, the guiding structure 50 formed by the guiding member 52 and the guiding groove can cause the extension section 31 extending from the laminate 40 to extend towards the top wall 21 of the cavity 20 when it abuts against the third side wall 232, penetrate through the second hole in the top wall 21 and enter the cavity 20. During the process of framing the laminate 40, the guiding structure 50 can cause the extension section 31 of the bus bar 30 to naturally extend into the cavity 20 without manual intervention, improving the production efficiency, saving labor, and contributing to automated production.

[0067] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and 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 should not be construed as a limitation of the present invention.

[0068] Exemplarily, the guiding structure 50 can be integrally formed with the frame during the production of the frame, or can be fixed to the inner wall surface of the third side wall 232 by welding or bonding.

[0069] Considering the waterproof sealing effect of the frame on the laminate 40, a sealing rubber ring can be provided in the first hole 231a of the first side wall 231 to prevent water vapor from entering the cavity 20 and then entering the laminate 40 through the second hole in the top wall 21.

[0070] Considering that in a photovoltaic module array, the photovoltaic module located in the middle needs to be connected to two adjacent photovoltaic modules respectively, and the bus bar 30 can extend out of the laminate 40 at both ends of the laminate 40. Specifically, the bus bar 30 has two extension sections 31, and the two extension sections 31 are respectively located on opposite sides of the laminate 40. That is, the frames on opposite sides of the laminate 40 also have the same structure, so that the two extension sections 31 are rigidly electrically connected to the electrical connectors 12 on the corresponding other photovoltaic module through the electrical connectors 12, and the frames on the remaining two sides of the laminate 40 can use the frames in the prior art.

[0071] In a photovoltaic module array, among the photovoltaic modules located at the edge, the bus bar 30 in the laminate 40 can extend out on one side to form an extension section 31, and there is no need to extend out on the other side to form an extension section 31, and the current is led out through a cable in the junction box 60 near the other side.

[0072] Figure 8 It is an isometric structural schematic diagram of the laminate 40 and the junction box 60 according to an embodiment of the present invention; Fig. 9is a schematic diagram of the isometric structure of the junction box 60 according to an embodiment of the present invention. Figure 8 and Fig. 9 As shown, in the photovoltaic assembly of the exemplary embodiment of the present invention, the three junction boxes 60 have the same shape and size, and a pointing portion 61 is provided on the outer wall of each junction box 60. Since the bypass diode in the junction box 60 has the function of protecting the photovoltaic cell from hot spot effect or reverse current, it is necessary to correctly connect the positive polarity bus bar 30 and the negative polarity bus bar 30. Therefore, when the three junction boxes 60 all have the pointing portion 61, it can prevent the installer from connecting the wrong electrodes, which has a fool-proof effect.

[0073] Compared with the photovoltaic modules in the prior art, the junction boxes 60 on both sides of the three junction boxes 60 need to use cables to conduct the current, and the volume of the junction boxes 60 on both sides is larger than that of the middle junction box 60. The photovoltaic module of the exemplary embodiment of the present invention conducts the current through the extension section 31 of the bus bar 30 and the electrical connector 12. Therefore, all three junction boxes 60 can use smaller junction boxes 60, which reduces the material cost of the junction boxes 60. At the same time, potting glue and silicone are required in the junction boxes 60, which also reduces the use of potting glue and silicone, thereby reducing the overall cost of the junction boxes 60.

[0074] An exemplary embodiment of the present invention further provides a photovoltaic assembly array, comprising a plurality of photovoltaic assemblies according to the above embodiments, wherein two adjacent photovoltaic assemblies are electrically connected via corresponding electrical connectors.

[0075] The technical advantages of the above-mentioned photovoltaic component array over the prior art are the same as the advantages of the above-mentioned photovoltaic components, which will not be repeated here.

[0076] It should be understood by those skilled in the art that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A photovoltaic module, characterized in that: It comprises a laminate, a frame and a rigid electrical connector, wherein the frame comprises a support portion having a cavity, and the top wall of the cavity is supported on the edge of the back side of the laminate; The laminate includes a bus bar, which has an extension section extending out of the laminate, the extension section extends through the top wall into the cavity, the electrical connector is connected to the extension section in the cavity, and the second end of the electrical connector extends through the first side wall of the cavity and out of the frame.

2. The photovoltaic module according to claim 1, characterized in that: The frame is an electrically insulating frame; or, The extension section and the electrical connector are electrically isolated from the frame respectively.

3. The photovoltaic module according to claim 1, characterized in that: The second end of the electrical connector has a mortise and tenon structure.

4. The photovoltaic module according to claim 3, characterized in that: A mortise groove is formed at a portion of the electrical connector close to the second end, and a tenon matching the mortise groove is formed at the second end of the electrical connector.

5. The photovoltaic module according to claim 1, characterized in that: The first end of the electrical connector is further connected to a fixing member, the fixing member has a first end surface facing the electrical connector, and the orthographic projection of the electrical connector on the first end surface is located within the first end surface; The first end surface is electrically connected to or electrically insulated from the electrical connector.

6. The photovoltaic module according to claim 5, characterized in that: The extension section has a through hole, the extension section is sleeved on the electrical connector through the through hole, and is fixed between the first side wall and the fixing member, and the first end surface is electrically connected to the electrical connector.

7. The photovoltaic module according to claim 5, characterized in that: The cavity further comprises a second side wall opposite to the first side wall, and the second side wall comprises an opening communicating with the cavity; One end of the fixing member facing away from the electrical connector is fixed in the opening.

8. The photovoltaic module according to claim 5, characterized in that: A groove is formed on a second end surface of the fixing member facing away from the electrical connector.

9. The photovoltaic module according to any one of claims 1 to 8, characterized in that: The frame further comprises a third side wall opposite to the side of the laminate, and a guide structure is further arranged on the third side wall, and the guide structure protrudes from the inner wall surface of the third side wall; The guide structure includes a guide groove and a guide member located above the guide groove, wherein the guide groove extends from a position opposite to the bus bar in the laminate toward the top wall.

10. A photovoltaic module array, characterized in that: The photovoltaic components comprise a plurality of components according to any one of claims 1 to 9, wherein two adjacent photovoltaic components are electrically connected via corresponding electrical connectors.

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