Photovoltaic pressing and holding mechanism and photovoltaic device

Abstract

The utility model relates to the field of photovoltaic technology, in particular to a photovoltaic hold-down mechanism and a photovoltaic device. The photovoltaic hold-down mechanism comprises a bottom plate and a hold-down piece, wherein the bottom plate is connected with the hold-down piece; the pressing and holding piece and the bottom plate jointly form a matching groove; the matching groove is used for being matched with a photovoltaic module; the bottom plate is provided with a clamping groove, and the clamping groove is used for clamping the photovoltaic module. The photovoltaic pressing and holding mechanism can be used for mounting the photovoltaic module, is high in mounting stability, and can prevent the photovoltaic module from falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic technology field, specifically, relate to a photovoltaic pressure holding mechanism and photovoltaic device. BACKGROUND

[0002] The photovoltaic module is a kind of power generation device that can generate direct current when exposed to sunlight, when installing photovoltaic module, it needs to be installed by photovoltaic pressure holding mechanism, so that multiple photovoltaic modules can be installed together.

[0003] However, the photovoltaic module in the prior art has the problem of unstable installation. UTILITY MODEL CONTENTS

[0004] The utility model discloses a photovoltaic pressure holding mechanism and photovoltaic device can install photovoltaic module, and high installation stability can avoid photovoltaic module to fall off.

[0005] The embodiment of the utility model can be realized as follows:

[0006] In a first aspect, the utility model provides a photovoltaic pressure holding mechanism, comprising:

[0007] Bottom plate and pressure holding piece, bottom plate and pressure holding piece connect;Pressure holding piece and bottom plate form cooperating groove together;Cooperating groove is used for cooperating with photovoltaic module;

[0008] The bottom plate is provided with a clamping groove, and the clamping groove is used for clamping the photovoltaic module.

[0009] In an optional embodiment, the pressure holding piece includes at least one pressure holding portion and at least one abutting portion, the abutting portion is connected with the bottom plate, and the pressure holding portion is connected with the side of the abutting portion away from the bottom plate;The pressure holding portion, the abutting portion and the bottom plate form the cooperating groove together.

[0010] In an optional embodiment, the photovoltaic pressure holding mechanism further includes a buffer gasket, and the buffer gasket is installed on the side of the pressure holding portion close to the bottom plate.

[0011] In an optional embodiment, the pressure holding portion is provided with a mounting groove, the buffer gasket has a mounting protrusion, and the mounting protrusion cooperates with the mounting groove.

[0012] In an optional embodiment, the pressure holding piece further includes a mounting portion, the mounting portion is detachably connected with the bottom plate, and is connected with the abutting portion.

[0013] In an optional embodiment, the number of the pressure holding portion and the abutting portion is two, and each pressure holding portion is connected to one abutting portion;Two abutting portions are connected to the same mounting portion.

[0014] In an optional embodiment, the photovoltaic pressure holding mechanism further includes at least two positioning pieces, and the two positioning pieces are connected to the same side of the bottom plate.

[0015] The two positioning members are located on both sides of the mounting portion and abut against the side of the same abutment portion away from the photovoltaic module;

[0016] Alternatively, the two positioning members are located on the same side of the mounting portion and abut against the side of the two abutment portions away from the photovoltaic frame, respectively.

[0017] In an optional embodiment, the photovoltaic pressing mechanism further comprises at least one positioning member connected with the bottom plate, and the positioning member abuts against the side of the abutment portion away from the photovoltaic module.

[0018] In an optional embodiment, the photovoltaic pressing mechanism further comprises a filling gasket arranged between the abutment portion and the bottom plate.

[0019] In a second aspect, the utility model provides a photovoltaic device which comprises a photovoltaic module and the aforementioned photovoltaic pressing mechanism; the edge of the photovoltaic module is matched with the matching groove, and the photovoltaic module is clamped with the clamping groove.

[0020] The photovoltaic pressing mechanism and the photovoltaic device provided by the utility model embodiment have the following beneficial effects:

[0021] The photovoltaic pressing mechanism comprises a bottom plate and a pressing member, and the bottom plate and the pressing member are connected; the pressing member and the bottom plate jointly form a matching groove; the matching groove is used for matching with a photovoltaic module; the bottom plate is provided with a clamping groove, and the clamping groove is used for clamping the photovoltaic module.

[0022] The photovoltaic pressing mechanism jointly forms the matching groove through the bottom plate and the pressing member, places the photovoltaic module in the matching groove, so that the pressing member and the bottom plate can jointly act on the photovoltaic module, thereby pressing the photovoltaic module and fixing the photovoltaic module. The bottom plate is provided with the clamping groove, and the clamping groove can be clamped together with the photovoltaic module, thereby avoiding that the photovoltaic module is separated from the photovoltaic pressing mechanism due to external force. The matching groove and the clamping groove of the photovoltaic pressing mechanism jointly act on the same photovoltaic module, thereby fixing the photovoltaic module, and further improving the stability of installation and avoiding the photovoltaic module from falling off. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The structure schematic diagram of the photovoltaic pressing mechanism in the first view of the embodiment is shown;

[0025] Figure 2A structure schematic diagram of the photovoltaic pressing mechanism from a second perspective is provided for the embodiment;

[0026] Figure 3 A structure schematic diagram of the photovoltaic device is provided for the embodiment;

[0027] Figure 4 A structure schematic diagram of the photovoltaic pressing mechanism from a first perspective is provided for other embodiments;

[0028] Figure 5 A structure schematic diagram of the photovoltaic pressing mechanism from a second perspective is provided for other embodiments;

[0029] Figure 6 A structure schematic diagram of the photovoltaic device is provided for other embodiments;

[0030] Figure 7 A structure schematic diagram of the buffer gasket is provided for the embodiment;

[0031] Figure 8 A structure schematic diagram of the bottom plate and the positioning member is provided for the embodiment;

[0032] Figure 9 A structure schematic diagram of the bottom plate and the positioning member is provided for other embodiments.

[0033] Icon: 100-photovoltaic pressing mechanism; 110-bottom plate; 111-clamping groove; 112-first mounting hole; 120-pressing member; 121-pressing part; 122-abutment part; 123-mounting groove; 124-mounting part; 125-second mounting hole; 130-matching groove; 140-buffer gasket; 141-mounting protrusion; 142-anti-skid part; 150-positioning member; 160-filling gasket; 170-connecting member; 200-photovoltaic device; 210-photovoltaic assembly; 211-photovoltaic unit; 212-photovoltaic frame. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the utility model protection.

[0036] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0037] In the description of the utility model, it should be explained that if the terms such as 'up', 'down', 'inner', 'outer' and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the utility model product in common use, it is only for the convenience of describing the utility model and simplifying the description, and it does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0038] In addition, if the terms 'first','second' and the like appear, they are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0039] It should be explained that the features in the embodiments of the utility model can be combined with each other without conflict.

[0040] Please refer to Figure 1 and Figure 3 , Figure 1 the structure schematic view of the photovoltaic pressing mechanism 100 under the first visual angle provided by the embodiment; Figure 2 the structure schematic view of the photovoltaic pressing mechanism 100 under the second visual angle provided by the embodiment; Figure 3 the structure schematic view of the photovoltaic device 200 provided by the embodiment.

[0041] The embodiment provides a photovoltaic device 200, the photovoltaic device 200 photovoltaic module 210 and photovoltaic pressing mechanism 100;Photovoltaic pressing mechanism 100 includes bottom plate 110 and pressing piece 120, bottom plate 110 and pressing piece 120 are connected;Pressing piece 120 and bottom plate 110 jointly form the matching groove 130;Matching groove 130 cooperates with photovoltaic module 210;Bottom plate 110 is provided with clamping groove 111, and clamping groove 111 is clamped with photovoltaic module 210.

[0042] Specifically, in the embodiment, the bottom plate 110 and the pressing member 120 are connected to each other to jointly form the fitting groove 130, and the photovoltaic assembly 210 is placed in the fitting groove 130, so that the photovoltaic assembly 210 abuts against the groove wall of the fitting groove 130, that is, the pressing member 120 and the bottom plate 110 both abut against the photovoltaic assembly 210.

[0043] It should be noted that the photovoltaic assembly 210 includes the photovoltaic unit 211 and the photovoltaic frame 212, the bottom plate 110 abuts against the bottom of the photovoltaic frame 212, and at least part of the pressing member 120 abuts against the light-receiving surface of the photovoltaic unit 211, so that the photovoltaic unit 211 and the photovoltaic frame 212 can be fastened together under the interaction of the pressing member 120 and the bottom plate 110, and the photovoltaic unit 211 is prevented from separating from the photovoltaic frame 212. In the embodiment, the edge of the side of the bottom plate 110 away from the pressing member 120 is bent towards the pressing member 120 to form the clamping groove 111, and the clamping groove 111 is clamped with the bottom of the photovoltaic frame 212 to improve the installation stability and prevent the photovoltaic frame 212 from separating from the bottom plate 110. Thus, the photovoltaic unit 211, the photovoltaic frame 212, and the photovoltaic pressing mechanism 100 can be stably connected together in the embodiment.

[0044] It can be understood that, in the embodiment, the clamping groove 111 is arranged, so that when the back surface of the photovoltaic unit 211 of the photovoltaic assembly 210 is subjected to an external force, the photovoltaic frame 212 of the photovoltaic assembly 210 is clamped with the clamping groove 111, so that the photovoltaic frame 212 is prevented from moving upward when the force is transmitted to the photovoltaic frame 212, thereby preventing the photovoltaic frame 212 from falling off or deforming.

[0045] It should be noted that the photovoltaic unit 211 includes laminated parts, a film, and a solar photovoltaic panel in the embodiment, that is, the photovoltaic unit 211 can convert solar energy into electric energy in the embodiment. At least part of the pressing member 120 abuts against the light-receiving surface of the photovoltaic unit 211, and at least part of the pressing member 120 abuts against the edge of the light-receiving surface, so as to avoid large-area shielding of the light-receiving surface and to avoid affecting the power generation capacity and power generation rate of the photovoltaic unit 211.

[0046] In other embodiments, the bottom plate 110 can also directly have the clamping groove 111 arranged to be clamped with the photovoltaic frame 212, and the arrangement mode of the clamping groove 111 can be selected according to actual conditions.

[0047] Further, as shown in Figures 1-3 , the pressing member 120 includes at least one pressing part 121 and at least one abutting part 122, the abutting part 122 is connected with the bottom plate 110, and the pressing part 121 is connected with the side of the abutting part 122 away from the bottom plate 110; the pressing part 121, the abutting part 122, and the bottom plate 110 jointly form the fitting groove 130.

[0048] Specifically, the pressing member 120 is bent to form a pressing portion 121 and an abutting portion 122 away from the bottom plate 110; the pressing portion 121 abuts against the light-receiving surface of the photovoltaic unit 211, and the abutting portion 122 is connected to the bottom plate 110 and abuts against the side wall of the photovoltaic frame 212. The pressing portion 121 and the bottom plate 110 interact to press the photovoltaic unit 211 and the photovoltaic frame 212, so as to avoid the photovoltaic unit 211 or the photovoltaic frame 212 from being separated, thereby improving the stability of the installation.

[0049] According to the above, the pressing member 120 further comprises a mounting portion 124, which is detachably connected to the bottom plate 110 and connected to the abutting portion 122. Specifically, the pressing member 120 and the bottom plate 110 in the embodiment are detachably connected, so that the installation and disassembly are more convenient.

[0050] In the embodiment, the bottom plate 110 is provided with a first mounting hole 112, the mounting portion 124 is provided with a second mounting hole 125, and the photovoltaic pressing mechanism 100 further comprises a connecting member 170, which cooperates with the first mounting hole 112 and the second mounting hole 125 to connect the bottom plate 110 and the mounting portion 124 together. The connecting member 170 in the embodiment is a bolt, and in other embodiments, the connecting member 170 can also be a screw or the like structure.

[0051] Please refer to Figures 4-6 , Figure 4 the structure schematic diagram of the photovoltaic pressing mechanism 100 in the first view of other embodiments; Figure 5 the structure schematic diagram of the photovoltaic pressing mechanism 100 in the second view of other embodiments; Figure 6 the structure schematic diagram of the photovoltaic device 200 in other embodiments.

[0052] In other embodiments, the number of the pressing portion 121 and the abutting portion 122 is two, and each pressing portion 121 is connected to one abutting portion 122; the two abutting portions 122 are connected to the same mounting portion 124. Specifically, in other embodiments, the number of the mounting portion 124 and the bottom plate 110 is one, and the two abutting portions 122 are connected to the opposite sides of the mounting portion 124; the two pressing members 120 jointly act on the bottom plate 110 to press different photovoltaic assemblies 210.

[0053] It can be understood that in other embodiments, the photovoltaic pressing mechanism 100 is provided with two pressing members 120 to press two photovoltaic assemblies 210 at the same time. In addition, the opposite sides of the bottom plate 110 are bent towards the pressing members 120 to form two clamping grooves 111, each of which corresponds to a pressing member 120 and a matching groove 130, and each clamping groove 111 is clamped with the photovoltaic frame 212 in the corresponding matching groove 130, thereby avoiding the photovoltaic frame 212 from being separated from the photovoltaic pressing mechanism 100 and improving the installation stability.

[0054] It should be noted that the photovoltaic device 200 has a plurality of arrayed photovoltaic assemblies 210, so that the photovoltaic pressing mechanism 100 for pressing one photovoltaic assembly 210 in this embodiment is a side pressing assembly, and the photovoltaic pressing mechanism 100 for pressing two photovoltaic assemblies 210 at the same time in other embodiments is a middle pressing assembly. The photovoltaic device 200 needs a plurality of side pressing assemblies and a plurality of middle pressing assemblies to cooperate to press a plurality of photovoltaic assemblies 210, thereby improving the structural stability of the photovoltaic device 200.

[0055] Further, please refer to Figures 1-3 In this embodiment, the photovoltaic pressing mechanism 100 further comprises a buffer gasket 140, which is installed on one side of the pressing portion 121 close to the bottom plate 110, i.e. the buffer gasket 140 is used to abut against the light-receiving surface of the photovoltaic unit 211 of the photovoltaic assembly 210.

[0056] Specifically, the direct contact between the pressing portion 121 and the photovoltaic unit 211 may cause the photovoltaic unit 211 to crack due to excessive pressure, thereby affecting the power generation efficiency of the photovoltaic unit 211; therefore, the buffer gasket 140 is provided in this embodiment to reduce the pressure applied by the pressing portion 121 to the photovoltaic unit 211, thereby avoiding the cracking of the photovoltaic unit 211 and improving the power generation efficiency of the photovoltaic unit 211.

[0057] According to the above content, please refer to Figures 1-3 and Figure 7 , Figure 7 is a structural schematic view of the buffer gasket 140 provided in this embodiment. The pressing portion 121 is provided with a mounting groove 123, and the buffer gasket 140 has a mounting protrusion 141 which cooperates with the mounting groove 123.

[0058] It should be noted that the cross section of the mounting groove 123 in this embodiment is T-shaped, and the cross section of the mounting protrusion 141 is also T-shaped, so that the mounting protrusion 141 can be clamped with the mounting groove 123, thereby avoiding the buffer gasket 140 from being separated from the mounting groove 123, reducing the pressure applied by the pressing portion 121 to the photovoltaic unit 211, and avoiding the cracking of the photovoltaic unit 211.

[0059] And, the side of the buffer gasket 140 in contact with the photovoltaic unit 211 is provided with an anti-skid part 142 to increase the friction coefficient between the buffer gasket 140 and the photovoltaic unit 211, avoid the photovoltaic unit 211 from sliding out relative to the buffer gasket 140, and improve the stability of installation.

[0060] Further, referring to Figures 1-3 and Figure 8 , Figure 8 The structural schematic diagram of the bottom plate 110 and the positioning member 150 provided in the embodiment is shown. The photovoltaic pressing mechanism 100 further comprises at least one positioning member 150, the positioning member 150 is connected with the bottom plate 110, and the positioning member 150 abuts against the side of the abutting part 122 away from the photovoltaic assembly 210.

[0061] Specifically, in the embodiment, two positioning members 150 are provided, the two positioning members 150 are arranged at intervals, and the mounting part 124 is located between the two positioning members 150; each positioning member 150 abuts against the side of the abutting part 122 away from the photovoltaic assembly 210, so that when the pressing member 120 and the bottom plate 110 are connected, the mounting position of the pressing member 120 can be positioned, the first mounting hole 112 and the second mounting hole 125 are aligned, and then the pressing member 120 and the bottom plate 110 are connected through the connecting member 170. Moreover, the positioning member 150 is arranged in the embodiment to ensure that the pressing member 120 can press the photovoltaic unit 211 of the photovoltaic assembly 210, and the bottom plate 110 cooperates to install and fix the photovoltaic unit 211 and the photovoltaic frame 212.

[0062] In other embodiments, a single positioning member 150 can also be arranged, so that the positioning member 150 and the side of the abutting part 122 away from the photovoltaic assembly 210 abut to position the mounting position of the pressing member 120. The specific number of the positioning member 150 can be adjusted according to actual conditions.

[0063] In other embodiments, referring to Figures 4-6 and Figure 9 , Figure 9 The structural schematic diagram of the bottom plate 110 and the positioning member 150 provided in the other embodiment is shown. The photovoltaic pressing mechanism 100 further comprises at least two positioning members 150, the two positioning members 150 are connected to the same side of the bottom plate 110; the two positioning members 150 are located on both sides of the mounting part 124 and abut against the side of the same abutting part 122 away from the photovoltaic assembly 210; or, the two positioning members 150 are located on the same side of the mounting part 124 and abut against the side of the two abutting parts 122 away from the photovoltaic frame 212.

[0064] Specifically, in other embodiments, the number of the positioning members 150 is four, and the number of the abutting portions 122 is two; wherein each of the abutting portions 122 is in abutment with two of the positioning members 150. The two positioning members 150 in abutment with the same abutting portion 122 are located on two sides of the mounting portion 124; and the two positioning members 150 located on the same side of the mounting portion 124 are in abutment with two abutting portions 122, respectively.

[0065] In other embodiments, the number of the abutting portions 122 is two, and the number of the positioning members 150 can also be two or three. If the number of the positioning members 150 is only two, the two positioning members 150 can be in abutment with two abutting portions 122, respectively, or in abutment with the same abutting portion 122, so as to position the mounting position of the pressing member 120. The number of the positioning members 150 can be selected according to actual conditions.

[0066] Please refer to Figure 1 The photovoltaic pressing mechanism 100 further comprises a filling gasket 160, which is arranged between the abutting portion 122 and the bottom plate 110. It can be understood that the heights of different photovoltaic modules 210 are not the same. In order to enable the photovoltaic pressing mechanism 100 to be applied to various photovoltaic modules 210, when the height of the photovoltaic module 210 is higher than the height of the abutting portion 122, the filling gasket 160 can be arranged between the abutting portion 122 and the bottom plate 110 to connect the abutting portion 122 and the bottom plate 110 together, so as to avoid the abutting portion 122 being arranged in a suspended manner relative to the bottom plate 110, and improve the stability of the installation.

[0067] In the present embodiment, the filling gasket 160 is arranged between the mounting portion 124 and the bottom plate 110, so as to adjust the distance between the pressing portion 121 and the bottom plate 110 by using the filling gasket 160, so that the photovoltaic pressing mechanism 100 can be applied to various photovoltaic modules 210. It can be understood that if there is a gap between the mounting portion 124 and the bottom plate 110, the pressing member 120 is prone to be separated from the bottom plate 110, which affects the stability of the installation.

[0068] It should be noted that in the present embodiment, the abutting portion 122 is provided with a guide inclined surface near one side of the bottom plate 110; when the pressing member 120 and the bottom plate 110 are installed, the side wall of the photovoltaic frame 212 of the photovoltaic module 210 and the positioning member 150 are first abutted, and the guide inclined surface is contacted with the positioning member 150; the abutting portion 122 is moved downward, and is separated from the positioning member 150 and the photovoltaic frame 212 under the action of the guide inclined surface, and the abutting member is abutted with the positioning member 150 and the photovoltaic frame 212. The abutting member continues to move downward until the buffer gasket 140 installed on the pressing portion 121 and the light-receiving surface of the photovoltaic unit 211 of the photovoltaic module 210 are abutted. Finally, the mounting portion 124 and the bottom plate 110 are connected by the connecting member 170, and if there is a gap between the mounting portion 124 and the bottom plate 110, a filling gasket 160 is added between the mounting portion 124 and the bottom plate 110 to fill the gap.

[0069] In summary, the photovoltaic pressing mechanism 100 forms the matching groove 130 by the bottom plate 110 and the pressing member 120 together, and the photovoltaic module 210 is placed in the matching groove 130, so that the pressing member 120 and the bottom plate 110 can jointly act on the photovoltaic module 210, thereby pressing the photovoltaic module 210 and fixing the photovoltaic module 210. The bottom plate 110 is provided with the clamping groove 111, which can be clamped with the photovoltaic module 210, so as to avoid the photovoltaic module 200 from being separated from the photovoltaic pressing mechanism 100 due to external force. The matching groove 130 and the clamping groove 111 of the photovoltaic pressing mechanism 100 jointly act on the same photovoltaic module 200, thereby fixing the photovoltaic module 200 and improving the stability of installation and avoiding the photovoltaic module 200 from falling off.

[0070] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A photovoltaic holding mechanism, characterized by, The photovoltaic pressing mechanism (100) comprises a bottom plate (110) and a pressing piece (120), the bottom plate (110) and the pressing piece (120) are connected, the pressing piece (120) and the bottom plate (110) jointly form a matching groove (130), and the matching groove (130) is used for matching with a photovoltaic module (210). The bottom plate (110) is provided with a clamping groove (111) used for clamping the photovoltaic module (210). The pressing piece (120) comprises at least one pressing part (121) and at least one abutting part (122), the abutting part (122) is connected with the bottom plate (110), the pressing part (121) is connected with the side of the abutting part (122) away from the bottom plate (110), and the pressing part (121), the abutting part (122) and the bottom plate (110) jointly form the matching groove (130).

2. The photovoltaic hold-down mechanism of claim 1, wherein, The photovoltaic pressing mechanism (100) further comprises a buffer gasket (140) installed on the side of the pressing part (121) close to the bottom plate (110).

3. The photovoltaic hold-down mechanism of claim 2, wherein, The pressing part (121) is provided with a mounting groove (123), and the buffer gasket (140) has a mounting protrusion (141) matched with the mounting groove (123).

4. The photovoltaic hold-down mechanism of claim 3, wherein, The pressing piece (120) further comprises a mounting part (124) detachably connected with the bottom plate (110) and connected with the abutting part (122).

5. The photovoltaic hold-down mechanism of claim 2, wherein, The number of the pressing part (121) and the abutting part (122) is both two, each pressing part (121) is connected with one abutting part (122), and two abutting parts (122) are connected with the same mounting part (124).

6. The photovoltaic hold-down mechanism of claim 5, wherein, The photovoltaic pressing mechanism (100) further comprises at least two positioning pieces (150), and the two positioning pieces (150) are connected with the same side of the bottom plate (110).

7. The photovoltaic hold-down mechanism of claim 6, wherein, The two positioning pieces (150) are located on the two sides of the mounting part (124) and abut with the side of the same abutting part (122) away from the photovoltaic module (210). Alternatively, the two positioning pieces (150) are located on the same side of the mounting part (124) and abut with the sides of the two abutting parts (122) away from the photovoltaic module (210) respectively. The photovoltaic pressing mechanism (100) further comprises at least one positioning piece (150) connected with the bottom plate (110), and the positioning piece (150) abuts with the side of the abutting part (122) away from the photovoltaic module (210).

8. The photovoltaic holding mechanism of claim 2, wherein, The photovoltaic pressing mechanism (100) further comprises a filling gasket (160) arranged between the abutting part (122) and the bottom plate (110).

9. The photovoltaic holding mechanism of claim 2, wherein, ​ 10. A photovoltaic device, characterized by The photovoltaic module (210) is matched with the matching groove (130) at the edge, and the photovoltaic module (210) is clamped with the clamping groove (111).

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