An integrated BIPV photovoltaic power generation device with double-sided double-glass components

Abstract

The present invention discloses an integrated BIPV photovoltaic power generation device of a double-sided double-glass component, comprising a photovoltaic mechanism, the photovoltaic mechanism comprising a double-glass component distributed in a rectangular array, the double-glass component comprising a photovoltaic unit and side profiles arranged on both sides of the photovoltaic unit, the back of the photovoltaic unit is attached with a liquid cooling tube that penetrates the side profile and is distributed side by side, and the two ends of the photovoltaic unit are detachably connected with a converter tube that extends along its distribution direction and is clamped on both sides of the photovoltaic mechanism, a valve core is arranged in the converter tube, and the converter tube, the valve core and the liquid cooling tube are enclosed to form a serpentine cooling liquid flow channel. The integrated BIPV photovoltaic power generation device of the double-sided double-glass component cools down the double-glass component through the cooling liquid flowing in the liquid cooling tube, and at the same time increases the photovoltaic power generation through light transmission, not only that, by installing the converter tube at both ends of the liquid cooling tube that penetrates the side profile and clamping the double-glass component distributed in a rectangular array, the liquid cooling tube, the converter tube and the double-glass component form a whole, which is convenient for installation on the top of the building, which is conducive to improving construction efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to an integrated BIPV photovoltaic power generation device of a double-sided double-glass component. Background Art

[0002] As the name suggests, double-glass modules are modules that can generate electricity on both sides. When sunlight shines on the double-sided modules, part of the light will be reflected by the surrounding environment to the back of the module. This part of light can be absorbed by the battery, thereby making a certain contribution to the battery's photocurrent and photovoltaic power generation efficiency. Therefore, compared with conventional photovoltaic modules, double-sided photovoltaic modules can generate electricity under both direct sunlight on the front and reflected sunlight received on the back, thereby increasing power generation.

[0003] Since double-glass modules have higher photovoltaic power generation, they are usually used in photovoltaic building integration (BIPV, Building Integrated PV, PV is Photovoltaic) technology, that is, double-glass modules distributed in a rectangular array are installed on the top of the building. In order to reduce the temperature of the double-sided modules when generating electricity, the prior art, such as the Chinese invention patent with announcement number CN207485025U, discloses a photovoltaic sun room with automatic cooling function, including a house roof made of double-glass solar modules and a water pipe passing through the house and arranged under the roof. After the water flows through the sun room, it can take away the heat, achieve physical cooling, and improve the power generation efficiency.

[0004] However, in the above device, the water pipe is made of aluminum alloy material, which is bound to block the light reflected on the back of the double-sided module, resulting in limited power generation by cooling the double-glass module; not only that, the heat exchange area between the water pipe and the photovoltaic module is small, resulting in low cooling efficiency of the double-glass module; in addition, in the prior art, photovoltaic modules are usually fixed one by one on the top of the building in advance, so that they are distributed in a rectangular array, and then water pipes are laid on the back of the photovoltaic modules. Since photovoltaic modules are usually installed on the top of the building, the construction is difficult and the installation operation is cumbersome, which reduces the installation efficiency.

[0005] Therefore, it is necessary to improve the integrated BIPV photovoltaic power generation device of the double-sided double-glass component in the prior art. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide an integrated BIPV photovoltaic power generation device with double-sided double-glass components that increases power generation and is easy to construct and install.

[0007] To achieve the above-mentioned technical effects, the technical solution of the present invention is: an integrated BIPV photovoltaic power generation device of double-sided double-glass components, including a photovoltaic mechanism, the photovoltaic mechanism including double-glass components distributed in a rectangular array, the double-glass components including photovoltaic units and side profiles arranged on both sides of the photovoltaic units, the back of the photovoltaic units are adhered with liquid cooling tubes that penetrate the side profiles and are distributed side by side, and the two ends of the liquid cooling tubes are detachably connected with converter tubes extending along the distribution direction thereof and clamped on both sides of the photovoltaic mechanism, a valve core is arranged in the converter tube, and the converter tube, the valve core and the liquid cooling tube are enclosed to form a serpentine cooling liquid flow channel.

[0008] Preferably, in order to facilitate the quick connection between the converter tube and the liquid cooling tube, a docking port is provided on the converter tube, and the converter tube is plugged and matched with the liquid cooling tube through the docking port.

[0009] Preferably, in order to form a serpentine coolant flow channel through the combined profile of the valve core, the converter tube and the liquid cooling tube, the valve core includes a valve stem distributed along the axial direction of the converter tube, the valve stem is sealed and fitted with the converter tube and two adjacent valve stems are connected by a connecting rod, a converter channel is arranged between the connecting rod and the converter tube, and the converter channel is connected between the tube cavities of two adjacent liquid cooling tubes.

[0010] Preferably, in order to clamp the double-glass components in the photovoltaic structure, the outer sleeve of the converter tube is provided with a clamping strip, and a ring is provided on the clamping strip. The axis of the ring extends in a direction parallel to the photovoltaic unit and perpendicular to the axial direction of the converter tube, and the rings are clamped and connected by threaded nuts and bolts.

[0011] Preferably, in order to support the photovoltaic structure, reduce the stress on the liquid cooling tube, and prevent the liquid cooling tube from being broken and damaged due to excessive pressure, a support bar is provided on the clamping bar, and the support bar is in contact with the back of the double-glass component.

[0012] Preferably, in order to enhance the locking effect of the double-glass assembly, both ends of the converter tube are sleeved with clamping strips, the clamping strips and the converter tube are combined to form a rectangular frame, and the circumferential outer edge of the photovoltaic mechanism is in contact with the circumferential inner wall of the frame.

[0013] Preferably, in order to achieve the fit between the circumferential inner wall of the frame and the circumferential outer edge of the photovoltaic mechanism, both ends of the converter tube are threadedly connected with sealing screw covers, and the clamping strip is clamped between the sealing screw cover and the photovoltaic mechanism.

[0014] Preferably, in order to facilitate the liquid cooling pipe to pass through the side profile, the side profile is provided with a through hole extending along the length direction thereof, and the through hole is for the liquid cooling pipe to pass through.

[0015] Preferably, in order to support the liquid cooling tube so that it is in close contact with the back side of the photovoltaic unit, the circumferential inner wall of the through hole includes a bottom wall facing the photovoltaic unit, and an elastic pad is provided on the bottom wall.

[0016] Preferably, in order to increase the back power generation of the photovoltaic mechanism under weak light conditions, the liquid cooling tube is a focusing tube, and its circumferential outer edge includes a heat exchange surface and a focusing surface. The heat exchange surface is in contact with the double-glass component, and the photovoltaic unit is arranged on the focusing side of the focusing surface.

[0017] To summarize, compared with the prior art, the integrated BIPV photovoltaic power generation device of the double-sided double-glass components of the present invention cools the double-glass components by the coolant flowing in the liquid cooling tube, and at the same time increases the photovoltaic power generation by light transmission. Moreover, by installing converter tubes at both ends of the liquid cooling tubes that pass through the side profiles and clamping the double-glass components distributed in a rectangular array, the liquid cooling tubes, converter tubes and double-glass components form a whole, which is convenient for installation on the top of the building, and is conducive to improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0019] Figure 2 is a structural schematic diagram of another viewing angle of Embodiment 1 of the present invention;

[0020] Figure 3 yes Figure 2 A magnified view of part A;

[0021] Figure 4 yes Figure 1 The schematic diagram of the structure after omitting the photovoltaic mechanism;

[0022] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure of;

[0023] Figure 6 yes Figure 5 A magnified view of part B;

[0024] Figure 7 yes Figure 4 Explosion diagram of

[0025] Figure 8 yes Figure 7 Enlarged view of part C;

[0026] Fig. 9 This is a schematic diagram of the structure of a double-glass assembly according to Embodiment 1 of the present invention;

[0027] Fig.10 yes Fig. 9 Explosion diagram of

[0028] Fig.11is a schematic diagram of the structure of a liquid cooling tube in Example 1 of the present invention;

[0029] Fig.12 yes Figure 7 A magnified view of the D portion;

[0030] Fig.13 This is a schematic diagram of the connection structure of the converter tube, the valve core and the sealing rotary cover in Example 2 of the present invention;

[0031] Fig.14 yes Fig.13 Explosion diagram of

[0032] In the figure: 100. photovoltaic unit, 101. double-glass battery layer, 102. film layer, 103. glass layer, 200. side profile, 201. through hole, 300. end profile, 400. corner code, 500. liquid cooling tube, 501. heat exchange surface, 502. focusing surface, 600. converter tube, 601. docking tube, 602. docking port, 700. valve core, 701. valve stem, 702. connecting rod, 800. clamping strip, 900. collar, 110. nut, 120. bolt, 130. middle strip, 140. support strip, 150. sealing screw cap, 151. clamping rod, 160. elastic pad, 170. liquid inlet pipe, 180. liquid outlet pipe. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0034] Example 1

[0035] like Figure 1-Figure 12 As shown, the integrated BIPV photovoltaic power generation device of double-sided double-glass components of Example 1 includes a photovoltaic mechanism, and the photovoltaic mechanism includes double-glass components distributed in a rectangular array. In a specific embodiment of the present invention, the double-glass components have three rows and six columns (such as Figure 1 and Figure 2 As shown, in actual application scenarios, the number of rows and columns of double-glass components can be appropriately adjusted according to the specific installation size and area of ​​the top of the building), and two adjacent double-glass components are set close to each other.

[0036] like Fig. 9 and Fig.10As shown, the double-glass module includes a photovoltaic unit 100 and four mounting profiles arranged on the circumferential outer edge of the photovoltaic unit 100, the four mounting profiles extend respectively along the length direction parallel to the four sides of the photovoltaic unit 100 and are connected end to end in sequence to form a closed loop frame, the mounting profile is provided with a mounting groove sealed with the photovoltaic unit 100 and a cavity located below the mounting groove, two adjacent mounting profiles are fixedly connected by an angle code 400, and the two ends of the angle code 400 are respectively inserted into the cavities of the two adjacent mounting profiles.

[0037] Among the four mounting profiles, the two mounting profiles connected to the two long sides of the photovoltaic unit 100 (that is, extending in parallel to the length direction of the photovoltaic unit 100) are side profiles 200, and the length direction of the side profile 200 is consistent with the row distribution direction of the double-glass component, and the two mounting profiles connected to the two short sides of the photovoltaic unit 100 (that is, extending in parallel to the width direction of the photovoltaic unit 100) are end profiles 300, and the length direction of the end profile 300 is consistent with the column distribution direction of the double-glass component; the photovoltaic unit 100 includes a double-glass cell layer 101, and the front and back sides of the double-glass cell layer 101 are both laminated and connected with a glass layer 103 through a film layer 102, and the front and back sides of the double-glass cell layer 101 can receive sunlight for photovoltaic power generation, so as to increase the photovoltaic power generation of the double-glass component.

[0038] The back of the photovoltaic unit 100 is adhered with a liquid cooling tube 500 that passes through the side profile 200. The liquid cooling tube 500 is a light-transmitting glass tube. In this way, the liquid cooling tube 500 is prevented from completely blocking the sunlight shining on the back of the photovoltaic unit 100. Compared with the aluminum alloy water pipe in the prior art, the light transmission increases the amount of sunlight received by the back of the photovoltaic unit 100, thereby increasing the photovoltaic power generation.

[0039] The liquid cooling tubes 500 are arranged side by side in parallel to the row distribution direction of the double-glass components, and a total of nine (eg Figure 4 , Figure 5 and Fig. 9 As shown), three liquid cooling tubes 500 are arranged at equal intervals on the back of each row of double-glass components; both ends of the liquid cooling tubes 500 are detachably connected with converter tubes 600, and the two converter tubes 600 are stainless steel tubes. Compared with the liquid cooling tubes 500, the structural strength is greater. The converter tubes 600 extend along the distribution direction parallel to the liquid cooling tubes 500, and the photovoltaic mechanism is sandwiched between the two liquid cooling tubes 500. A valve core 700 is also fixed in the converter tube 600. The nine liquid cooling tubes 500, the two converter tubes 600 and the valve cores 700 in the two converter tubes 600 enclose a serpentine cooling liquid flow channel; a liquid inlet tube 170 is fixed on one of the converter tubes 600, and a liquid outlet tube 180 is fixed on the other converter tube 600. The tube cavity of the liquid inlet tube 170 and the tube cavity of the liquid outlet tube 180 are respectively connected to the two ends of the cooling liquid flow channel.

[0040] After adopting the above structure, when assembling the photovoltaic power generation device, the nine liquid cooling tubes 500 are sequentially passed through the double glass component side profiles 200 distributed in a rectangular array in the photovoltaic component, and then the valve core 700 is installed in the converter tube 600, the converter tube 600 is connected to the ends of the nine liquid cooling tubes 500, and the double glass component distributed in a rectangular array is sandwiched by two converter tubes 600, so as to complete the assembly of the photovoltaic power generation device, so that the liquid cooling tube 500, the converter tube 600 and the double glass component form a whole, which is convenient for installation on the top of the building, and there is no need to install the double glass components one by one, which is conducive to improving the construction efficiency. efficiency; in addition, a liquid inlet pipe 170 and a liquid outlet pipe 180 are respectively fixed on the two converter tubes 600. During use, the coolant (usually water. In order to avoid the growth of algae in the water and block the light, salt can also be added to the cooling water to form salt water to inhibit the reproduction of algae) can enter the coolant flow channel through the liquid inlet pipe 170 through a water pump. When the water flows in the coolant flow channel, it drives the heat on the back of the photovoltaic unit 100, thereby cooling the photovoltaic unit 100, which is beneficial to improving the photovoltaic power generation efficiency; after the water absorbs the heat, it is discharged through the liquid outlet pipe 180.

[0041] In order to recycle the coolant and reduce the consumption of the coolant, a reflux box can be installed between the liquid outlet pipe 180 and the water pump connected to the liquid inlet pipe 170. When the coolant enters the reflux box from the liquid outlet pipe 180, it is cooled in the reflux box, and then is pumped away by the water pump, enters the coolant flow channel through the liquid inlet pipe 170, and flows back to the reflux box from the liquid outlet pipe 180. In this way, a circulating flow of coolant is formed to continuously carry away the heat generated by the photovoltaic unit 100 during power generation, thereby improving the photovoltaic power generation efficiency of the photovoltaic unit 100 by cooling.

[0042] It should be noted that the length direction, total number and distribution form of the liquid cooling tube 500 can also be adjusted in other ways. For example, the liquid cooling tube 500 extends in a direction parallel to the distribution direction of the double-glass component. At this time, the liquid cooling tube 500 penetrates the end profile 300 of the double-glass component. Multiple liquid cooling tubes 500 are distributed side by side, and after connecting the converter tube 600 at both ends, the photovoltaic mechanism is clamped by two converter tubes 600. It can also achieve not only connecting the photovoltaic mechanism, the converter tube 600 and the liquid cooling tube 500 into one, which is convenient for installation and construction, but also using the liquid cooling tube 500, the converter tube 600 and the valve core 700 to enclose a serpentine coolant flow channel. By flowing the coolant in the coolant flow channel, the photovoltaic unit 100 is cooled and the power generation efficiency of the photovoltaic unit 100 is improved. Technical effect.

[0043] In order to facilitate the rapid connection of the liquid cooling tube 500 and the converter tube 600, nine docking tubes 601 are fixed on the converter tube 600. The docking tubes 601 are vertically connected to the converter tube 600 and are arranged side by side along the length direction of the converter tube 600. The nine docking tubes 601 correspond to the nine liquid cooling tubes 500 one by one. The end of the docking tube 601 away from the converter tube 600 is a docking port 602. The end of the liquid cooling tube 500 is inserted into the inner side of the docking tube 601 through the docking port 602, so that the converter tube 600 is plugged and matched with the liquid cooling tube 500 through the docking port 602, and the circumferential outer edge of the end of the liquid cooling tube 500 is sealed and fitted with the circumferential inner wall of the docking tube 601; the docking tube 601 is connected to one end of the photovoltaic mechanism, that is, when the photovoltaic mechanism is sandwiched between the two converter tubes 600, the docking tubes 601 on the two converter tubes 600 are respectively abutted against the double glass components at the first and last ends of the photovoltaic mechanism (such as Figure 1 , Figure 2 as shown).

[0044] After adopting the above structure, the positions of the nine liquid cooling tubes 500 are adjusted so that the nine liquid cooling tubes 500 are aligned with the nine docking tubes 601, and two operators act simultaneously, that is, they move the two converter tubes 600 toward the photovoltaic mechanism respectively at the same time, so that the nine docking tubes 601 on the converter tube 600 are simultaneously sleeved outside the ends of the nine liquid cooling tubes 500, and the two converter tubes 600 are moved close to each other, and the docking tubes 601 are abutted against the double-glass components in the first and last columns, so that the double-glass components are closely arranged in the column direction, that is, in the same row of double-glass components, the two adjacent double-glass components are closely arranged along the length direction of the end edge profile 300.

[0045] In order to make the valve core 700, the converter tube 600 and the liquid cooling tube 500 enclose to form a serpentine cooling liquid flow channel, such as Figure 5-Figure 7 As shown, the valve core 700 is in the shape of an elongated strip as a whole, and includes four valve stems 701 distributed along the axial direction of the converter tube 600. Two adjacent valve stems 701 are fixedly connected by a connecting rod 702. The valve stem 701 and the connecting rod 702 are both cylindrical with the same axis as the circumferential inner wall of the converter tube 600. The outer diameter of the valve stem 701 is the same as the inner diameter of the converter tube 600. The circumferential outer edge of the valve stem 701 is fixedly connected to the circumferential inner wall of the converter tube 600 by welding. The outer diameter of the connecting rod 702 is smaller than the outer diameter of the valve stem 701. Specifically, in order to form a serpentine cooling channel, the liquid inlet pipe 170 is located on one side of the nine liquid cooling tubes 500, and the liquid outlet pipe 180 is located on the other side of the nine liquid cooling tubes 500, that is, the nine liquid cooling tubes 500 are located between the liquid inlet pipe 170 and the liquid outlet pipe 180, as shown in FIG. Figure 5As shown, the valve core 700 in the converter tube 600 fixedly connected to the liquid inlet pipe 170 has four valve stems 701 located, from top to bottom, between the axis lines of the first and second liquid-cooling tubes 500, between the axis lines of the third and fourth liquid-cooling tubes 500, between the axis lines of the fifth and sixth liquid-cooling tubes 500, and between the axis lines of the seventh and eighth liquid-cooling tubes 500; and for another converter tube 600, that is, the converter tube 600 connected to the liquid outlet pipe 180, in the valve core 700 on the inner side thereof, the four valve stems 701 are located, from top to bottom, between the axis lines of the second and third liquid-cooling tubes 500, between the axis lines of the fourth and fifth liquid-cooling tubes 500, between the axis lines of the sixth and seventh liquid-cooling tubes 500, and between the axis lines of the eighth and ninth liquid-cooling tubes 500. Since the outer diameter of the valve stem 701 is the same as the inner diameter of the converter tube 600, the flow direction of the coolant in the converter tube 600 can be changed, and the outer diameter of the connecting rod 702 is smaller than the inner diameter of the converter tube 600, so that a converter channel is formed between the connecting rod 702 and the converter tube 600, and the converter channel is connected between the ends of two adjacent liquid cooling tubes 500.

[0046] After adopting the above structure, the coolant enters the tube cavity of the converter tube 600 from the liquid inlet pipe 170, is intercepted by the first valve stem 701 of the valve core 700 (hereinafter referred to as the "left valve core 700") in the converter tube 600 connected to the liquid inlet pipe 170, and then flows along the first (sequential direction from top to bottom) liquid cooling tube 500, enters the converter tube 600 flowing with the liquid outlet pipe 180, is intercepted by the first valve stem 701 of the valve core 700 (hereinafter referred to as the "right valve core 700") in the converter tube 600, and then flows along the second liquid cooling tube 500, and the flow direction in the liquid cooling tube 500 is opposite to that in the first liquid cooling tube 500, and then the coolant enters the left converter tube 600, is intercepted by the valve stem 701 of the second left valve core 700, enters the third liquid cooling tube 500, and flows in the third liquid cooling tube 500. The flow direction is the same as that in the first liquid-cooling tube 500, and it enters the converter tube 600 on the right, and is intercepted by the second valve stem 701 of the right valve core 700; in this way, the flow direction of the coolant in the converter tube 600 and the liquid-cooling tube 500 is guided by the valve stem 701, so that the valve core 700, the liquid-cooling tube 500 and the converter tube 600 are enclosed to form a serpentine coolant flow channel, in which the flow direction of the coolant is serpentine. Specifically, the coolant flows in the spaced liquid-cooling tubes 500 in the same direction, and the coolant flows in the adjacent liquid-cooling tubes 500 in opposite directions, that is, the coolant flows in the first, third, fifth, seventh and ninth liquid-cooling tubes 500 in the same direction, and is opposite to the coolant flow in the second, fourth, sixth and eighth liquid-cooling tubes 500, so as to achieve uniform cooling of the double-glass components distributed in the rectangular array and increase photovoltaic power generation.

[0047] like Figure 1 , Figure 4 and Figure 5 As shown, the two converter tubes 600 are both sleeved with clamping strips 800, the clamping strips 800 extend in a length direction parallel to the liquid cooling tube 500, and an intermediate strip 130 with the same length direction as the two is arranged between the two clamping strips 800. The ends of the clamping strips 800 adjacent to the intermediate strips 130 and the two ends of the intermediate strips 130 are fixed with collars 900 by welding, and the collars 900 on the intermediate strips 130 and the clamping strips 800 are located on the same axis, and bolts 120 are passed through the four collars 900, and the rods of the bolts 120 are threadedly connected with nuts 110, and the four collars 900 are clamped between the heads of the bolts 120 and the nuts 110, so as to realize the six-row double-glass group. The components are arranged closely; both ends of the commutation tube 600 are sleeved with clamping strips 800, so that the device can act on the photovoltaic mechanism from both sides of the photovoltaic mechanism at the same time, ensuring the compactness of the photovoltaic mechanism in the column direction. At the same time, the butt-joint tube 601 is prevented from being separated from the cooling tube 500 after being plugged in and matched with the nine butt-joint tubes 601 and the nine cooling tubes 500. Moreover, after the nine butt-joint tubes 601 are plugged in and matched with the nine cooling tubes 500 at the same time, the butt-joint tubes 601 and the cooling tubes 500 are tightly connected together at both ends by the nuts 110 and bolts 120 with threaded matching, which not only ensures the connection strength to prevent the two from being separated, but also facilitates assembly, simplifies construction, and improves installation efficiency.

[0048] The clamping strip 800 and the middle strip 130 are integrally connected with a support strip 140 having the same length direction and the same ends as the two strips. The support strip 140 is attached to the back of the double-glass assembly. Specifically, the support strip 140 is attached to the bottom of one of the end edge profiles 300 of the first and last rows of double-glass assemblies. The support strip 140 provides auxiliary support to the first and last rows of double-glass assemblies, thereby reducing the bearing pressure of the liquid cooling tube 500, preventing the liquid cooling tube 500 from being damaged and ruptured due to excessive pressure, thereby extending the service life of the liquid cooling tube 500.

[0049] Both ends of the converter tube 600 are threadedly connected with a sealing screw cap 150, such as Figure 2 , Figure 3 and Figure 7 As shown, the sealing rotary cover 150 is a barrel-shaped structure facing the converter tube 600, and an outer flange is fixed to one end of the sealing rotary cover 150 close to the center of the converter tube 600, and the clamping strip 800 is clamped between the outer flange and the photovoltaic structure.

[0050] During assembly, after the six rows of double-glass components of the photovoltaic mechanism are pressed together by bolts 120 and nuts 110, the sealing screw caps 150 are screwed on both ends of the converter tube 600, and the two sealing screw caps 150 are close to each other. The flanges on the sealing screw caps 150 act on the clamping strips 800, pushing the clamping strips 800 to move toward the photovoltaic mechanism. Finally, the photovoltaic mechanism is clamped between the clamping strips 800 pushed by the two sealing screw caps 150. At this time, the clamping strips 800 are clamped between the flanges of the sealing screw caps 150 and the photovoltaic mechanism (specifically, the end edge profiles 300 located on the outside of the first row or the third row of double-glass components). In this way, the three rows of double-glass components are closely arranged.

[0051] According to the above-mentioned assembly method, the two converter tubes 600, the four clamping strips 800, and the two middle strips 130 are fixedly connected by two sets of threaded bolts 120 and nuts 110, and are combined to form a rectangular frame. The outer edge of the photovoltaic structure will fit with the circumferential inner wall of the frame. Specifically, in the double-glass components located in the first and last rows, the outer end profile 300 fits with the clamping strips 800 and the middle strip 130, and in the double-glass components located at the first and last ends, the outer side profile 200 fits with the butt tubes 601 on the two converter tubes 600, so that in the photovoltaic structure composed of double-glass components distributed in a rectangular array, two adjacent double-glass components are close together.

[0052] In order to facilitate the liquid cooling pipe 500 to pass through the side profile 200, the side profile 200 is provided with a through hole 201 extending along its length direction. There are three through holes 201 in total, which are evenly spaced on the side profile 200. The width of the through hole 201 is larger than the dimension of the liquid cooling pipe 500 in the height direction so as to allow the liquid cooling pipe 500 to pass through. The circumferential inner wall of the through hole 201 includes a bottom wall facing the photovoltaic unit 100, and an elastic pad 160 is fixedly laid on the bottom wall. The elastic pad 160 is an EPDM rubber pad (of course, as an alternative with similar effects, the elastic pad 160 can also be an elastic support pad such as a silicone pad or a latex pad).

[0053] In the above structure, by designing the through hole 201 to be long and strip-shaped and having a height greater than the height dimension of the liquid cooling tube 500, it is convenient for the liquid cooling tube 500 to pass through the side profile 200 through the through hole 201, and at the same time, it is convenient for the side profile 200 to move relative to the liquid cooling tube 500, so that when the three rows of double-glass components are moved closer by using the sealing screw cover 150, since the through hole 201 on the side profile 200 is long and strip-shaped, the side profile 200 and its double-glass components can move relative to the liquid cooling tube 500 in a direction parallel to the length of the converter tube 600 to adjust the position of the double-glass components; and after the elastic pad 160 is arranged on the bottom of the through hole 201, the elastic pad 160 can support the liquid cooling tube 500 and prevent the bottom of the liquid cooling tube 500 from contacting the bottom wall of the rigid side profile 200, causing the liquid cooling tube 500 to be broken and damaged.

[0054] The liquid cooling tube 500 is a focusing tube, and the photovoltaic unit is located on the focusing side of the liquid cooling tube 500. Specifically, the circumferential outer edge of the liquid cooling tube 500 includes a heat exchange surface 501 and a focusing surface 502. The heat exchange surface 501 is a planar structure, which is in contact with the glass layer 103 on the back of the double-glass battery layer 101 in the photovoltaic unit 100. The focusing surface 502 is an arc surface, and its arc-shaped opening faces the photovoltaic unit.

[0055] After the liquid cooling tube 500 adopts the above structure, the planar heat exchange surface 501 increases the heat exchange area between the liquid cooling tube 500 and the photovoltaic unit 100, thereby increasing the heat exchange amount to the photovoltaic unit 100, which is beneficial for the water flow in the liquid cooling tube 500 to absorb more heat, enhance the cooling effect, and thus increase the photovoltaic power generation; not only that, the arc-shaped focusing surface 502 can be used to focus the light irradiated on the liquid cooling tube 500, thereby increasing the local light intensity irradiated on the double-glass component. Since the amount of sunlight irradiated on the back of the double-glass component is lower than the amount of sunlight irradiated on the front of the double-glass component, in weak light conditions (such as dusk or cloudy days), the light can be concentrated by focusing, and the generated output voltage can start the inverter electrically connected to the photovoltaic mechanism to supply power, thereby avoiding the situation in which the amount of sunlight is too small in weak light conditions, resulting in too low power generation generated by the double-glass component, and the inverter electrically connected to it cannot be started, resulting in no output power supply. Of course, it should be noted that in the present application, the shape of the focusing surface 502 is not limited to an arc shape. For example, the focusing surface 502 can also be a folded surface shape. The circumferential outer edge of the liquid cooling tube 500 formed by the focusing surface 502 and the heat exchange surface 501 has a triangular cross-section, that is, the liquid cooling tube 500 is in the shape of a triangular prism. In the above case, the focusing surface 502 can also achieve the technical effect of focusing light to increase the output voltage of the double-glass component under weak light conditions.

[0056] Example 2

[0057] like Figure 13-Figure 14As shown, the integrated BIPV photovoltaic power generation device of the double-sided double-glass component of Example 2 is based on Example 1, with the difference that the valve core 700 slides on the inner side of the converter tube 600, and the two sealing screw caps 150 are fixed with a clamping rod 151 on the side adjacent to the valve core 700, and the clamping rod 151 extends along the axial direction of the converter tube 600, and the clamping rod 151 is fixedly connected to the barrel bottom of the sealing screw cap 150 and is arranged on the inner side of the converter tube 600, and a gap for the flow of coolant is arranged between the clamping rod 151 and the converter tube 600, and when the barrel bottoms of the two sealing screw caps 150 are respectively in contact with the two ends of the converter tube 600 at the same time, the valve core 700 is clamped between the clamping rods 151 of the two sealing screw caps 150.

[0058] After adopting the above structure, it is not necessary to fix the valve core 700 in the converter tube 600. During assembly, the two sealing screw caps 150 are screwed into the center of the converter tube 600 so that the barrel bottom of the sealing screw caps 150 abuts against the end of the converter tube 600. When the barrel bottoms of the two sealing screw caps 150 abut against the converter tube 600, the valve core 700 is clamped between the clamping rods 151 of the two sealing screw caps 150, that is, through the two clamping rods 151, there is no need to weld the valve core 700. The clamping strip 800 is clamped between the photovoltaic structure and the flange of the sealing screw cap 150, and the assembly is more convenient. Moreover, after the sealing screw cap 150 is unscrewed, the valve core 700 can be withdrawn from the converter tube 600, and the inside of the converter tube 600 can be cleaned. When the valve core 700 is installed into the converter tube 600, the position of the valve core 700 in the converter tube 600 is fixed by the clamping rods 151 on the two sealing screw caps 150. This makes it convenient to perform operations such as cleaning, maintenance, and replacement.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An integrated BIPV photovoltaic power generation device of a double-sided double-glass component, comprising a photovoltaic mechanism, the photovoltaic mechanism comprising double-glass components distributed in a rectangular array, the double-glass components comprising a photovoltaic unit (100) and side profiles (200) arranged on both sides of the photovoltaic unit (100), characterized in that: The back of the photovoltaic unit (100) is bonded with a liquid cooling tube (500) that penetrates the side profile (200) and is arranged side by side. The liquid cooling tube (500) is a transparent tube, and both ends of the liquid cooling tube are detachably connected to a converter tube (600) that extends along the distribution direction thereof and is clamped on both sides of the photovoltaic mechanism. A valve core (700) is arranged in the converter tube (600). The converter tube (600), the valve core (700) and the liquid cooling tube (500) enclose a serpentine cooling liquid flow channel; The valve core (700) comprises a valve stem (701) distributed along the axial direction of the converter tube (600); the valve stem (701) is sealed and fitted with the converter tube (600); two adjacent valve stems (701) are connected via a connecting rod (702); a converter channel is provided between the connecting rod (702) and the converter tube (600); the converter channel is connected between the tube cavities of two adjacent liquid cooling tubes (500).

2. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 1 is characterized in that: The commutation tube (600) is provided with a docking port (602), and the commutation tube (600) is plugged and matched with the liquid cooling tube (500) through the docking port (602).

3. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 1 is characterized in that: The outer jacket of the converter tube (600) is provided with a clamping strip (800), and a collar (900) is provided on the clamping strip (800). The axis of the collar (900) extends in a direction parallel to the photovoltaic unit (100) and perpendicular to the axial direction of the converter tube (600), and the collars (900) are clamped and connected by a nut (110) and a bolt (120) that are threadedly matched.

4. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 3 is characterized in that: A support bar (140) is provided on the clamping bar (800), and the support bar (140) is in contact with the back surface of the double-glass component.

5. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 3 is characterized in that: Both ends of the commutation tube (600) are sleeved with clamping strips (800), the clamping strips (800) and the commutation tube (600) are combined to form a rectangular frame, and the circumferential outer edge of the photovoltaic mechanism is in contact with the circumferential inner wall of the frame.

6. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 5 is characterized in that: Both ends of the converter tube (600) are threadedly connected to a sealing rotary cover (150), and the clamping strip (800) is clamped between the sealing rotary cover (150) and the photovoltaic mechanism.

7. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 1, characterized in that: The side profile (200) is provided with a through hole (201) extending along its length direction, and the through hole (201) is used for the liquid cooling pipe (500) to pass through.

8. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 7 is characterized in that: The circumferential inner wall of the through hole (201) comprises a bottom wall facing the photovoltaic unit (100), and an elastic pad (160) is arranged on the bottom wall.

9. The integrated BIPV photovoltaic power generation device of double-sided double-glass components according to claim 1, characterized in that: The liquid cooling tube (500) is a light-collecting tube, and its circumferential outer edge comprises a heat exchange surface (501) and a light-collecting surface (502); the heat exchange surface (501) is in contact with the double-glass component, and the photovoltaic unit is arranged on the light-collecting side of the light-collecting surface (502).

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