Double-glass photovoltaic module sealing waterproof structure and double-glass photovoltaic module

Abstract

The utility model relates to the technical field of double-glass photovoltaic assembly sealing, and discloses a double-glass photovoltaic assembly sealing waterproof structure and a double-glass photovoltaic assembly, the double-glass photovoltaic assembly sealing waterproof structure comprises a water-blocking sealing gasket, the water-blocking sealing gasket is suitable for being installed in a to-be-sealed opening of the double-glass photovoltaic assembly, the edge of the water-blocking sealing gasket is recessed inwards to form an inner groove, and the inner groove is provided with a sealing groove. An inner groove is formed in the water-blocking sealing gasket, the inner groove is formed in the thickness direction of the water-blocking sealing gasket in a penetrating mode so that the water-blocking sealing gasket can form two supporting feet on the two sides of the inner groove, and the water-blocking sealing gasket is of a deformable structure so that the supporting feet can extend towards the interior of the inner groove. The edge of the water-blocking sealing gasket is sunken inwards to form an inner groove, the inner groove penetrates through the gasket in the thickness direction to form a supporting foot, and under the laminating effect, due to the fact that the water-blocking sealing gasket is of a deformable structure, the supporting foot can extend towards the interior of the inner groove, a part to be sealed can be effectively wrapped, and the sealing effect is improved. And the sealing waterproof effect of the double-glass photovoltaic module is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of double-glass photovoltaic module sealing, in particular to a double-glass photovoltaic module sealing and waterproof structure and a double-glass photovoltaic module. Background Art

[0002] Most double-glass photovoltaic modules mainly include a front panel glass, a power generation layer, and a back panel glass. For traditional double-glass photovoltaic modules, it is necessary to open holes in the back panel glass, then pass the lead wires through the holes in the glass, and connect and install them with a junction box. However, opening holes in the back panel glass not only increases the processing difficulty of the glass, but also requires sealing and waterproof treatment between the lead wires and the holes.

[0003] Currently, for the sealing treatment measures of double-glass photovoltaic modules, mainly through potting glue of the junction box and bonding glue in cooperation with EPE / EVA film to seal and waterproof the holes of the lead wires on the back panel glass. However, this method has a large operation difficulty and is difficult to be completely sealed, and the sealing and waterproof effect is general, and the waterproof performance of the module cannot meet the application requirements of high-humidity environments such as by the sea or by the lake; there is also a method of laying butyl rubber gaskets on the surface of the back panel glass. However, since the original installation surface of the junction box needs to be closely attached to the back panel glass, after laying the butyl rubber gasket on the surface of the back panel glass, due to the limitation of the size of the butyl rubber, in addition to the bottom surface of the junction box that contacts the surface of the butyl rubber gasket, there is also a part of the bottom surface in a suspended state, which will affect the installation tightness between the glass and the junction box, and the lead wires are prone to damage. Summary of the Utility Model

[0004] In view of this, the utility model provides a double-glass photovoltaic module sealing and waterproof structure to solve the problems in the prior art that laying a sealing gasket on the surface of the back panel glass easily causes loose installation between the glass and the junction box, poor tightness, and thus poor sealing and waterproof effect of the double-glass photovoltaic module, and the lead wires are prone to damage.

[0005] In a first aspect, the utility model provides a double-glass photovoltaic module sealing and waterproof structure, including: a water-blocking sealing gasket, which is adapted to be installed in the holes to be sealed of the double-glass photovoltaic module. The edge of the water-blocking sealing gasket is recessed inward to form an inner groove, and the inner groove runs through along the thickness direction of the water-blocking sealing gasket, so that two supporting feet are formed on both sides of the inner groove of the water-blocking sealing gasket. The water-blocking sealing gasket is a deformable structure, so that the supporting feet extend towards the inside of the inner groove.

[0006] Beneficial effects: By installing the water-blocking and sealing gasket in the opening to be sealed of the double-glass photovoltaic module, the surface of the double-glass photovoltaic module is prevented from bulging, and the installation tightness between the surface of the double-glass photovoltaic module and the junction box is improved. An inner groove is formed by the inward depression of the edge of the water-blocking and sealing gasket, and the inner groove penetrates through the thickness direction of the water-blocking and sealing gasket to form support feet. Under the lamination effect, since the water-blocking and sealing gasket is a deformable structure, the support feet can extend towards the inside of the inner groove, effectively wrapping the part to be sealed, improving the sealing and waterproof effect of the double-glass photovoltaic module, and effectively preventing the part to be sealed from being damaged.

[0007] In an alternative embodiment, the water-blocking and sealing gasket further includes a main body portion. One end of the support foot is connected to the main body portion, and the other end of the support foot extends away from the main body portion. The two support feet are connected to the same side of the main body portion, and the two support feet are arranged relatively spaced apart. The side of the main body portion for connecting with the support feet and the two opposite sides of the two support feet enclose to form the inner groove.

[0008] Beneficial effects: By arranging the two support feet relatively spaced apart and enclosing the inner groove with the side of the main body portion of the water-blocking and sealing gasket facing the support feet and the two opposite sides of the two support feet, while the water-blocking and sealing gasket is installed and seals the opening to be sealed of the double-glass photovoltaic module, it allows the lead wire to pass through the inner groove normally. And since the water-blocking and sealing gasket is a deformable structure, the support feet can extend towards the inside of the inner groove, effectively wrapping the lead wire and preventing water leakage caused by poor sealing.

[0009] In an alternative embodiment, one side of one support foot facing the other support foot includes: a straight surface section, one end of the straight surface section is connected to the main body portion; a curved surface section, one end of the curved surface section is connected to the other end of the straight surface section, and the other end of the curved surface section extends away from the straight surface section. Along the x direction, the two curved surface sections of the two support feet are gradually approaching; or one side of one support foot facing the other support foot includes: a curved surface section, one end of the curved surface section is connected to the main body portion, and the other end of the curved surface section extends away from the main body portion. Along the x direction, the two curved surface sections of the two support feet are gradually approaching.

[0010] Beneficial effects: By setting the surface facing one leg towards the other leg as a form spliced by a straight surface section and an arc surface section, with one end of the straight surface section connected to the main body part, one end of the arc surface section connected to the other end of the straight surface section, and the other end of the arc surface section extending away from the straight surface section, and along the x-direction, the ends of the two arc surface sections of the two relatively spaced legs gradually approach each other. With such a setting, on the one hand, when laminating the water-blocking and sealing gasket, the form of the arc surface section facilitates the extension of the leg towards the inside of the inner groove, so as to fit perfectly with the lead wire and achieve the sealing effect; on the other hand, by arranging a straight surface section between the arc surface section and the main body part, a certain accommodation space is formed between the straight surface section and the main body part, which facilitates the smooth passing of the lead wire through the inner groove and avoids damage to the lead wire when passing through due to the small space of the inner groove. Or rather, the surface facing one leg towards the other leg can also be set only as an arc surface section, with one end of the arc surface section connected to the main body part and the other end of the arc surface section extending away from the main body part. Along the x-direction, the ends of the two arc surface sections of the two relatively spaced legs gradually approach each other, so that when laminating, the leg can extend towards the inside of the inner groove, and then fit perfectly with the lead wire to achieve the sealing effect.

[0011] In an alternative embodiment, along the y-direction, the spacing width D4 between the two straight surface sections of the two relatively spaced legs ranges from 6 mm to 7 mm; along the x-direction, the length of the arc surface section is D3, and the value range of D3 is 2 mm to 3 mm; along the x-direction, the length of the straight surface section is D5, and the value range of D5 is 0 mm to 1 mm.

[0012] Beneficial effects: By setting the spacing width between the two straight surface sections of the relatively spaced legs to be 6 mm to 7 mm, setting the length of the circular arc section to be 2 mm to 3 mm along the x-direction, and setting the length of the straight line section to be 0 mm to 1 mm along the x-direction, it is ensured that the lead wire can safely pass through the inner groove. At the same time, under the lamination effect, the legs can extend into the groove and fit perfectly with the component to be sealed, improving the sealing and waterproof effect.

[0013] In an alternative embodiment, the value range of the spacing width D4 is 6 mm to 6.5 mm; along the x-direction, the value range of the length D3 of the arc surface section is 2.5 mm to 3 mm.

[0014] Beneficial effects: By further reducing the spacing width between the two straight surface sections of the relatively spaced legs and the length of the arc surface section along the x-direction, the distance between the lead wire and the legs is further reduced, facilitating the fitting between the legs and the lead wire.

[0015] In an alternative embodiment, the included angle X between the side surface of the main body portion for connecting with the support leg and the straight surface section ranges from 70° to 90°; and / or, along the z-direction, the thickness of the water-blocking and sealing gasket is D1, and the value range of D1 is from 2 mm to 3 mm; and / or, along the y-direction, the maximum length of the water-blocking and sealing gasket is D2, and the value range of D2 is from 12 mm to 13 mm.

[0016] Advantageous effects: By limiting the included angle between the side surface of the main body portion for connecting with the support leg and the straight surface section to range from 70° to 90°, it is beneficial for the support leg to extend into the inner groove, thereby enabling the water-blocking and sealing gasket to be fully attached to the lead wire, achieving the sealing and waterproof effect. Moreover, the thickness and length of the water-blocking and sealing gasket can be adjusted according to the actual size of the opening to be sealed in the double-glass photovoltaic module, so that the water-blocking and sealing gasket can be fully attached to the opening.

[0017] In an alternative embodiment, the included angle X between the side surface of the main body portion for connecting with the support leg and the straight surface section ranges from 80° to 90°; and / or, along the z-direction, the thickness D1 of the water-blocking and sealing gasket ranges from 2.5 mm to 3 mm; and / or, along the y-direction, the length D2 of the water-blocking and sealing gasket ranges from 12 mm to 12.5 mm.

[0018] Advantageous effects: By limiting the included angle between the side surface of the main body portion for connecting with the support leg and the straight surface section to range from 80° to 90°, it is convenient for the lead wire to pass through the water-blocking and sealing gasket, and at the same time, it can ensure that the support leg extends into the groove and is fully attached to the lead wire.

[0019] In an alternative embodiment, the water-blocking and sealing gasket is made of butyl rubber.

[0020] Advantageous effects: The water-blocking and sealing gasket can be made of butyl rubber, which has good waterproof performance.

[0021] In an alternative embodiment, the water-blocking and sealing gasket is an integrally formed structure.

[0022] Advantageous effects: The water-blocking and sealing gasket is set as an integrally formed structure, which further enhances the sealing and waterproof effect, and has a simple shape and is not easily deformed during transportation or laying.

[0023] In a second aspect, the present utility model provides a double-glass photovoltaic module, which includes a front plate glass, a power generation layer, a back plate glass, lead wires arranged in sequence, and the above-mentioned double-glass photovoltaic module sealing and waterproof structure installed in an opening of the back plate glass. The back plate glass forms an opening to be sealed, and the double-glass photovoltaic module sealing and waterproof structure is installed in the opening to be sealed and abuts against the hole wall of the opening to be sealed. The lead wire passes through the inner groove.

[0024] Beneficial effects: By installing the double-glass photovoltaic module sealing and waterproof structure in the opening to be sealed and abutting against the hole wall of the opening to be sealed, at the same time, the lead wire can pass through the opening to be sealed and the double-glass photovoltaic module sealing and waterproof structure and extend, and the lead wire fits with the double-glass photovoltaic module sealing and waterproof structure, thereby realizing the waterproof sealing between the opening to be sealed and the lead wire in the double-glass photovoltaic module. Description of the drawings

[0025] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 It is a top view of a double-glass photovoltaic module sealing and waterproof structure according to an embodiment of the present utility model;

[0027] Figure 2 For Figure 1 It is a front view of the double-glass photovoltaic module sealing and waterproof structure shown;

[0028] Figure 3 It is a top view of a double-glass photovoltaic module according to an embodiment of the present utility model;

[0029] Figure 4 For Figure 3 It is a cross-sectional view of the double-glass photovoltaic module (the front plate glass and the power generation layer are omitted) shown.

[0030] Description of the reference numerals.

[0031] 1. Water-blocking and sealing gasket; 2. Inner groove; 3. Support leg; 31. Straight surface section; 32. Arc surface section; 4. Main body part; 5. Back plate glass; 6. Lead wire; D1. Thickness of the water-blocking and sealing gasket; D2. Maximum length of the water-blocking and sealing gasket; D3. Length of the arc surface section along the x direction; D4. Spacing width; D5. Length of the straight line section along the x direction; X. Angle of the included angle. Specific embodiments

[0032] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model 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 to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0036] In order to overcome the problems in the prior art that when laying a sealing gasket on the surface of the backplane glass, it is easy to cause loose installation between the glass and the junction box, poor fastening degree, resulting in poor sealing and waterproof effect of the double-glass photovoltaic module, and damage to the lead-out wire, the present utility model provides a double-glass photovoltaic module sealing and waterproof structure and a double-glass photovoltaic module.

[0037] The following combines Figures 1 to 4 as shown, to describe the embodiments of the present utility model.

[0038] According to an embodiment of the present utility model, in a first aspect, a double-glass photovoltaic module sealing and waterproof structure is provided, including: a water-blocking sealing gasket 1.

[0039] Specifically, the water-blocking and sealing gasket 1 is adapted to be installed in the opening to be sealed of the double-glass photovoltaic module. The edge of the water-blocking and sealing gasket 1 is recessed inward to form an inner groove 2. The inner groove 2 is arranged through in the thickness direction of the water-blocking and sealing gasket 1, so that two support feet 3 are formed on both sides of the water-blocking and sealing gasket 1 at the inner groove 2. The water-blocking and sealing gasket 1 is a deformable structure, so that the support feet 3 extend towards the inside of the inner groove 2.

[0040] In the embodiment of the present utility model, by installing the water-blocking and sealing gasket 1 in the opening to be sealed of the double-glass photovoltaic module, the presence of protrusions on the surface of the double-glass photovoltaic module is avoided, thereby improving the installation fastening degree between the surface of the double-glass photovoltaic module and the junction box. The side of the water-blocking and sealing gasket 1 is recessed inward to form an inner groove 2, and the inner groove 2 penetrates through the thickness direction of the water-blocking and sealing gasket 1 to form support feet 3. Under the lamination effect, since the water-blocking and sealing gasket 1 is a deformable structure, the support feet 3 can extend towards the inside of the inner groove 2, effectively wrapping the lead-out wire 6 (to be introduced below), improving the sealing and waterproof effect of the double-glass photovoltaic module, and effectively avoiding damage to the lead-out wire 6.

[0041] It can be understood that there is a certain gap between the support feet 3 and the lead-out wire 6 in this embodiment, that is, the hole of the inner groove 2 is larger than the size of the lead-out wire 6, so that the lead-out wire 6 can first pass through the inner groove 2 smoothly, and then lamination is carried out, so that the support feet 3 can extend towards the inside of the inner groove 2. And because the lead-out wire 6 does not extend completely vertically, and part of the lead-out wire 6 extends obliquely when passing through the opening to be sealed of the double-glass photovoltaic module, therefore, leaving a certain gap between the support feet 3 and the lead-out wire 6 can not only avoid damage to the lead-out wire 6 caused by touching the support feet 3, but also the water-blocking and sealing gasket 1 can allow the lead-out wire 6 extending at different angles to pass through, with a wider application range.

[0042] According to an embodiment of the present utility model, with reference to Figure 1 and Figure 3 as shown, the water-blocking and sealing gasket 1 further includes a main body part 4.

[0043] Specifically, one end of the support foot 3 is connected to the main body part 4, and the other end of the support foot 3 extends in a direction away from the main body part 4. The two support feet 3 are connected to the same side of the main body part 4, and the two support feet 3 are arranged relatively spaced apart. The side of the main body part 4 for connecting with the support feet 3 and the two opposite sides of the two support feet 3 enclose to form the inner groove 2.

[0044] Among them, in combination with Figure 1 and Figure 3As shown, in the embodiment of the present utility model, by arranging two supporting feet 3 at a relative interval and enclosing an inner groove 2 with the side surface of the main body 4 for connecting the supporting feet 3 and the two opposite surfaces of the two supporting feet 3, when the water-blocking and sealing gasket 1 is installed and seals the opening to be sealed of the double-glass photovoltaic module, it allows the lead wire 6 to pass through the inner groove 2 normally. And since the water-blocking and sealing gasket 1 is a deformable structure, the supporting feet 3 can extend towards the inside of the inner groove 2, effectively wrapping the lead wire 6 and avoiding water leakage caused by poor sealing.

[0045] Among them, as Figure 1 shown, the two opposite side surfaces of the main body 4 are respectively connected to the supporting feet 3 arranged at a relative interval. The side surface connected to the supporting feet 3 can be a flat surface, and the two sides adjacent to this side surface are arc surfaces. The main body 4 is formed by enclosing with the opposite flat surfaces and arc surfaces, and the arc surface is adapted to the opening to be sealed of the double-glass photovoltaic module. It can be understood that the water-blocking and sealing gasket 1 is composed of the main body 4 in the middle part and the supporting feet 3 connected to the two side surfaces of the main body 4.

[0046] According to an embodiment of the present utility model, referring to Figure 1 and Figure 3 shown, one side of a supporting foot 3 facing another supporting foot 3 includes: a straight surface section 31 and an arc surface section 32.

[0047] Specifically, one end of the straight surface section 31 is connected to the main body 4, one end of the arc surface section 32 is connected to the other end of the straight surface section 31, and the other end of the arc surface section 32 extends in a direction away from the straight surface section 31. Along the x direction, the two arc surface sections 32 of the two supporting feet 3 are gradually approaching.

[0048] Among them, in combination with Figure 1 and Figure 3 shown, in the embodiment of the present utility model, by setting one side of a supporting foot 3 facing another supporting foot 3 in the form of a splicing of a straight surface section 31 and an arc surface section 32, and one end of the straight surface section 31 is connected to the main body 4, one end of the arc surface section 32 is connected to the other end of the straight surface section 21, and the other end of the arc surface section 32 extends in a direction away from the straight surface section 31. Along the x direction, the ends of the two arc surface sections 32 of the two relatively spaced supporting feet 3 are gradually approaching. In this way, on the one hand, when laminating the water-blocking and sealing gasket 1, the setting form of the arc surface section 32 helps the supporting feet 3 to extend towards the inside of the inner groove 2 so as to fit completely with the lead wire 6 to achieve the water-blocking and sealing effect; on the other hand, by arranging the straight surface section 31 between the arc surface section 32 and the main body 4, a certain accommodation space is formed between the straight surface section 31 and the main body 4, facilitating the lead wire 6 to pass through the inner groove 2 formed by the two supporting feet 3 and the main body 4 smoothly, and avoiding the situation that the space inside the inner groove 2 is too small, causing the lead wire 6 to collide with the supporting feet 3 or the main body 4 and be damaged when passing through.

[0049] It can be understood that since the lead wire 6 is not completely vertically arranged, some of the lead wires 6 are inclined, and the lead wire 6 is relatively fragile. Therefore, by arranging the straight surface section 31 between the arc surface section 32 and the main body 4, a certain accommodating space is formed, which helps the lead wires 6 at different angles to pass through the water-blocking sealing gasket 1 smoothly and avoid causing obstruction.

[0050] Certainly, in other embodiments, one side of a support leg 3 facing another support leg 3 includes: an arc surface section 32. Specifically, one end of the arc surface section 32 is connected to the main body 4, and the other end of the arc surface section 32 extends in a direction away from the main body 4. Along the x direction, the arc surface sections 32 of the two support legs 3 are gradually approaching.

[0051] It can be understood that one side of a support leg 3 facing another support leg 3 may also only include the arc surface section 32. Whether to set the straight surface section 31 and reserve the accommodating space can be adjusted according to the actual situation, as long as it can ensure that the lead wire 6 can pass through the inner groove 2 smoothly without touching the support leg 3 or the main body 4 and causing damage to the lead wire 6. And under the lamination effect, the setting of the arc surface section 32 facilitates the support leg 3 to extend towards the inside of the groove until it fits with the lead wire 6.

[0052] According to an embodiment of the present invention, as Figure 1 shown, along the y direction, the interval width D4 between the two straight surface sections 31 of the two support legs 3 arranged at intervals is 6 mm to 7 mm; along the x direction, the length of the arc surface section 32 is D3, and the value range of D3 is 2 mm to 3 mm; along the x direction, the length of the straight surface section 31 is D5, and the value range of D5 is 0 mm to 1 mm.

[0053] In the embodiment of the present invention, by limiting the value range of the interval width D4 between the two straight surface sections 31 of the two support legs 3 arranged at intervals to 6 mm to 7 mm, the value range of the length D3 of the arc surface section 32 along the x direction to 2 mm to 3 mm, and the value range of the length D5 of the straight surface section 31 along the x direction to 0 mm to 1 mm, it is ensured that the lead wire 6 can smoothly pass out of the inner groove 2, avoiding contact between the lead wire 6 and the support leg 3 or the main body 4 during the process of passing out and causing damage to the lead wire 6. At the same time, under the lamination effect, the support leg 3 can extend towards the inside of the groove and completely fit with the lead wire 6, improving the sealing and waterproof effect.

[0054] Among them, the lamination temperature is generally set at 120°C to 150°C to press the water-blocking sealing gasket 1.

[0055] According to an embodiment of the present invention, the value range of the interval width D4 is 6 mm to 6.5 mm, and along the x direction, the value range of the length D3 of the arc surface section 32 is 2.5 mm to 3 mm.

[0056] In an embodiment of the present utility model, according to the actual situation, by further reducing the interval width D4 between the two straight surface segments 31 of the supporting feet 3 arranged at a relatively small interval, and the length of the arc surface segment 32 in the x direction, the size of the accommodating space of the inner groove 2 is further reduced, so that the distance between the lead wire 6 and the supporting feet 3 and the main body part 4 is decreased, avoiding the situation that the supporting feet 3 cannot extend to completely fit with the lead wire 6 due to the too large distance between the lead wire 6 and the supporting feet 3 and the main body part 4, thereby enabling the water-blocking sealing gasket 1 and the lead wire 6 to completely fit under lamination.

[0057] According to an embodiment of the present utility model, referring to Figure 1 As shown, the included angle X between the side surface of the main body part 4 for connecting with the supporting feet 3 and the straight surface segment 31 ranges from 70° to 90°; and / or, along the z direction, the thickness of the water-blocking sealing gasket 1 is D1, and the value range of D1 is 2 mm to 3 mm; and / or, along the y direction, the maximum length of the water-blocking sealing gasket 1 is D2, and the value range of D2 is 12 mm to 13 mm.

[0058] In the embodiment of the present utility model, by limiting the value range of the included angle X between the side surface of the main body part 4 for connecting with the supporting feet 3 and the straight surface segment 31 to 70° to 90°, it is beneficial for the supporting feet 3 to extend towards the inside of the inner groove 2, and then the supporting feet 3 are completely attached to the lead wire 6 to achieve the sealing and waterproof effect. As Figure 1 shown, the value range of the included angle X between the side surface of the main body part 4 for connecting with the supporting feet 3 and the straight surface segment 31 is limited to 70° to 90°, so that while allowing the lead wire 6 to pass through, the supporting feet 3 can extend towards the inside of the groove under the lamination effect and fit with the lead wire 6 to achieve sealing. Of course, when the supporting feet 3 only include the arc surface segment 32, the value range of the included angle X between the side surface of the main body part 4 for connecting with the supporting feet 3 and the arc surface segment 32 is limited to 70° to 90°, and similarly, the supporting feet 3 extend towards the inside of the groove to fit with the lead wire 6 to achieve sealing.

[0059] Moreover, by limiting the value range of the thickness D1 of the water-blocking sealing gasket 1 to 2 mm to 3 mm and the value range of the maximum length D2 of the water-blocking sealing gasket 1 along the y direction to 12 mm to 13 mm, the staff can select a water-blocking sealing gasket 1 suitable for the opening according to the actual size of the opening to be sealed in the double-glass photovoltaic module, avoiding the gap between the opening and the water-blocking sealing gasket 1, so that the water-blocking sealing gasket 1 completely fits with the opening.

[0060] According to an embodiment of the present utility model, in combination with Figure 1As shown, the range of the included angle X between the side surface of the main body portion 4 for connecting with the support leg 3 and the straight surface segment 31 is 80° to 90°; and / or, along the z direction, the range of the thickness D1 of the water-blocking and sealing gasket 1 is 2.5 mm to 3 mm; and / or, along the y direction, the range of the maximum length D2 of the water-blocking and sealing gasket 1 is 12 mm to 12.5 mm.

[0061] In the embodiment of the present utility model, by limiting the range of the included angle X between the side surface of the main body portion 4 for connecting with the support leg 3 and the straight surface segment 31 to 80° to 90°, the inner groove size inside the inner groove 2 is further enlarged, which is beneficial for the lead wire 6 to pass through the inner groove 2 smoothly. At the same time, it can ensure that the support leg 3 extends towards the inside of the groove and fits completely with the lead wire 6 to achieve the sealing and waterproof effect. At the same time, by limiting the range of the thickness D1 of the water-blocking and sealing gasket 1 to 2.5 mm to 3 mm and the range of the maximum length D2 of the water-blocking and sealing gasket 1 along the y direction to 12 mm to 12.5 mm, it can be completely installed in the opening.

[0062] According to an embodiment of the present utility model, the water-blocking and sealing gasket 1 can be made of butyl rubber material, which has good waterproof performance.

[0063] According to an embodiment of the present utility model, as Figure 1 shown, the water-blocking and sealing gasket 1 is an integrally formed structure. With such a setting, not only can the water-blocking and sealing gasket 1 have better structural stability and is not easily deformed during transportation or laying, but also the sealing and waterproof effect is further enhanced.

[0064] According to the embodiment of the present utility model, in combination with Figure 3 and Figure 4 shown, on the other hand, a double-glass photovoltaic module is also provided, which includes a front plate glass, a power generation layer, a back plate glass 5, a lead wire 6 arranged in sequence, and the above-mentioned double-glass photovoltaic module sealing and waterproof structure installed in the opening of the back plate glass 5. The back plate glass forms an opening to be sealed, and the double-glass photovoltaic module sealing and waterproof structure is installed in the opening to be sealed and abuts against the hole wall of the opening to be sealed. The lead wire 6 passes through the inner groove.

[0065] Specifically, the double-glass photovoltaic module includes a front plate glass, a power generation layer and a back plate glass 5 stacked in sequence, and the three are laminated together along the thickness direction of the double-glass photovoltaic module. In combination with Figure 3 and Figure 4As shown, a plurality of openings are provided on the backplane glass 5, and the adjacent openings are spaced apart. A lead wire 6 is provided on one side close to the backplane glass 5, and the lead wire 6 passes through the opening to the outside of the backplane glass 5. Therefore, the water-blocking and sealing gasket 1 can be installed in the opening and the lead wire 6 is allowed to pass through. At the same time, under the lamination effect, the water-blocking and sealing gasket 1 can be deformed, and its legs 3 extend towards the groove so as to be completely fitted with the passing lead wire 6 to achieve the effect of water-blocking and sealing.

[0066] It can be understood that the openings formed on the backplane glass 5 can be circular, elliptical, square or other shaped holes. Among them, the double-glass photovoltaic module sealing and waterproof structure is installed in the opening to be sealed and abuts against the hole wall of the opening to be sealed. At the same time, an inner groove 2 is formed by the inward depression of the side edge of the water-blocking and sealing gasket 1, allowing the lead wire 6 to pass through the opening to be sealed and the inner groove 2 and extend, so that the electric energy generated by the double-glass photovoltaic module can be led out to the outside of the double-glass photovoltaic module through the lead wire 6 for easy storage of electric energy.

[0067] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A double-glass photovoltaic module sealing and waterproof structure, characterized in that: include: A water-blocking sealing gasket (1) is suitable for being installed in an opening to be sealed in a double-glass photovoltaic module, the edge of the water-blocking sealing gasket (1) is recessed inward to form an inner groove (2), the inner groove (2) is arranged through the water-blocking sealing gasket (1) in the thickness direction, so that the water-blocking sealing gasket (1) forms two legs (3) on both sides of the inner groove (2), and the water-blocking sealing gasket (1) is a deformable structure so that the legs (3) extend toward the groove of the inner groove (2).

2. The double-glass photovoltaic module sealing and waterproof structure according to claim 1, characterized in that: The water-blocking sealing gasket (1) further comprises a main body (4), one end of the support leg (3) being connected to the main body (4), the other end of the support leg (3) extending in a direction away from the main body (4), the two support legs (3) being connected to the same side surface of the main body (4), the two support legs (3) being arranged with relative spacing, the side surface of the main body (4) being used to connect to the support legs (3) and the two opposite surfaces of the two support legs (3) enclosing the inner groove (2).

3. The double-glass photovoltaic module sealing and waterproof structure according to claim 2 is characterized in that: A side of one of the legs (3) facing the other leg (3) comprises: A straight-face section (31), one end of which is connected to the main body (4); A curved surface segment (32), one end of the curved surface segment (32) is connected to the other end of the straight surface segment (31), the other end of the curved surface segment (32) extends in a direction away from the straight surface segment (31), and along the x direction, the two curved surface segments (32) of the two legs (3) are gradually arranged close to each other; or, A side of one of the legs (3) facing the other leg (3) comprises: A curved surface segment (32), one end of which is connected to the main body (4), and the other end of which extends in a direction away from the main body (4), and along the x direction, the two curved surface segments (32) of the two legs (3) are gradually arranged close to each other.

4. The double-glass photovoltaic module sealing and waterproof structure according to claim 3, characterized in that: Along the y direction, the interval width between the two straight surface sections (31) of the two legs (3) arranged relatively spaced apart is D4, and the value range of D4 is 6 mm to 7 mm; Along the x direction, the length of the arc surface segment (32) is D3, and the value range of D3 is 2 mm to 3 mm; Along the x direction, the length of the straight surface section (31) is D5, and the value range of D5 is 0 mm to 1 mm.

5. The double-glass photovoltaic module sealing and waterproof structure according to claim 4, characterized in that: The interval width D4 has a value range of 6 mm to 6.5 mm; along the x direction, the length D3 of the arc surface segment (32) has a value range of 2.5 mm to 3 mm.

6. The double-glass photovoltaic module sealing and waterproof structure according to claim 3, characterized in that: The angle between the side surface of the main body (4) used for connecting with the support leg (3) and the straight surface section (31) is X, and the value range of X is 70° to 90°; and / or, Along the z direction, the thickness of the water-blocking sealing gasket (1) is D1, and the value range of D1 is 2 mm to 3 mm; and / or, Along the y direction, the maximum length of the water-blocking sealing gasket (1) is D2, and the value range of D2 is 12 mm to 13 mm.

7. The double-glass photovoltaic module sealing and waterproof structure according to claim 6, characterized in that: The value range of the included angle X between the side surface of the main body (4) used for connecting with the support leg (3) and the straight surface section (31) is 80° to 90°; and / or, Along the z direction, the thickness D1 of the water-blocking sealing gasket (1) ranges from 2.5 mm to 3 mm; and / or, Along the y direction, the maximum length D2 of the water-blocking sealing gasket (1) has a value range of 12 mm to 12.5 mm.

8. The double-glass photovoltaic module sealing and waterproof structure according to claim 1, characterized in that: The water-blocking sealing gasket (1) is made of butyl rubber.

9. The double-glass photovoltaic module sealing and waterproof structure according to claim 1, characterized in that: The water-blocking sealing gasket (1) is an integrally formed structure.

10. A double-glass photovoltaic module, characterized in that: The invention comprises a front glass panel, a power generation layer, a back glass panel (5), a lead wire (6) and a double-glass photovoltaic module sealing and waterproof structure arranged in sequence, wherein the back glass panel (5) forms an opening to be sealed, the double-glass photovoltaic module sealing and waterproof tooling is installed in the opening to be sealed and abuts against the hole wall of the opening to be sealed, and the lead wire (6) is passed through the inner groove (2).

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