Perovskite photovoltaic module with packaging function

Abstract

The utility model relates to the technical field of perovskite photovoltaic modules, and discloses a perovskite photovoltaic module with a packaging function, which comprises an upper box cover, a lower box body and a perovskite photovoltaic module, the lower box body is provided with a first mounting groove, the perovskite photovoltaic module is arranged in the first mounting groove, one side of the upper box cover close to the lower box body is provided with an upper glue injection groove, and the other side of the upper box cover close to the lower box body is provided with a lower glue injection groove. A lower glue injection groove matched with the upper glue injection groove is formed in the side, close to the upper box cover, of the lower box body, the upper glue injection groove communicates with the lower glue injection groove, and the upper glue injection groove and the lower glue injection groove are both filled with waterproof glue. According to the perovskite photovoltaic module with the packaging function, the upper box cover and the lower box body are bonded together through the waterproof glue in the upper glue injection groove and the lower glue injection groove, and external water and oxygen are isolated from the perovskite photovoltaic module, so that the degradation rate of a perovskite material in the perovskite photovoltaic module can be effectively delayed; therefore, the service life of the perovskite photovoltaic module is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to perovskite photovoltaic module field, more specifically, it relates to a perovskite photovoltaic module with packaging function. BACKGROUND

[0002] Perovskite photovoltaic module is the solar cell module made of perovskite material, can convert solar energy directly into electric energy, perovskite material has excellent photoelectric property, such as adjustable band gap, high absorption coefficient, low machine sub bondage energy, high carrier mobility and high defect tolerance, these properties make perovskite solar cell have higher photoelectric conversion efficiency and lower manufacturing cost.

[0003] However, perovskite material is relatively unstable, sensitive to water oxygen, perovskite material itself has strong hygroscopicity, can absorb moisture molecules in the surrounding environment, when air humidity reaches a certain degree, too many water molecules will make perovskite material decompose, reduce device performance, the existing perovskite photovoltaic module adopts plastic film packaging, and the packaging effect is poor, which cannot effectively prevent external water oxygen from contacting the photovoltaic module. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects in the prior art, and provides a perovskite photovoltaic module with good packaging effect and capable of effectively preventing external water oxygen from contacting the photovoltaic module.

[0005] To achieve the above object, the utility model provides a perovskite photovoltaic module with packaging function, which comprises an upper box cover, a lower box body and a perovskite photovoltaic module, the lower box body is provided with a first mounting groove, the perovskite photovoltaic module is arranged in the first mounting groove, the side of the upper box cover close to the lower box body is provided with an upper glue injection groove, the side of the lower box body close to the upper box cover is provided with a lower glue injection groove matched with the upper glue injection groove, and the upper glue injection groove is communicated with the lower glue injection groove, waterproof glue is filled in the upper glue injection groove and the lower glue injection groove, the lower box body is provided with a glue inlet hole communicated with the lower glue injection groove, and the upper box cover is provided with a glue outlet hole communicated with the lower glue injection groove.

[0006] By using the perovskite photovoltaic module with packaging function, the waterproof glue in the upper glue injection groove and the lower glue injection groove bonds the upper box cover and the lower box body together, and the external water oxygen is isolated from the perovskite photovoltaic module, so that the degradation rate of perovskite material in the perovskite photovoltaic module can be effectively delayed, the service life of the perovskite photovoltaic module is improved, and the maintenance cost is reduced.

[0007] Preferably, the upper box cover is provided with a positioning slot corresponding to the first mounting slot, and the projection size of the positioning slot in the vertical direction is greater than the projection size of the first mounting slot in the vertical direction, and the lower shell top is provided with a convex edge matched with the positioning slot. After the upper box cover is buckled on the lower box body, the upper glue injection groove is matched with the lower glue injection groove in position, which is beneficial to the injection of waterproof glue.

[0008] Preferably, the lower box body is fixedly connected with a negative pressure pipe communicated with the first mounting slot, and a one-way valve is installed at the end of the negative pressure pipe away from the lower box body. With such a design, the waterproof glue will not leak out from the contact surface between the upper box cover and the lower box body, which is beneficial to the injection of waterproof glue.

[0009] Preferably, the planar shape of the upper glue injection groove and the lower glue injection groove is annular. With such a design, the contact area of the waterproof glue in the upper glue injection groove and the waterproof glue in the lower glue injection groove can be increased, thereby improving the bonding strength of the upper box cover and the lower box body.

[0010] Preferably, the size of the upper glue injection groove away from the opening thereof is greater than the opening size thereof, and the size of the lower glue injection groove away from the opening thereof is greater than the opening size thereof. With such a design, the stability of the bonding of the upper box cover and the lower box body can be improved.

[0011] Preferably, the opening of the glue outlet hole communicated with the upper glue injection groove is located in the top inner wall of the upper glue injection groove. With such a design, the waterproof glue will flow out from the glue outlet hole only after the upper glue injection groove is filled with waterproof glue.

[0012] Preferably, the upper box cover is fixedly connected with a glue outlet pipe matched with the glue outlet hole, and the lower box body is fixedly connected with a glue inlet pipe matched with the glue inlet hole. With such a design, the glue can be prevented from dripping on the upper box cover and the lower box body.

[0013] Preferably, the waterproof glue is a hot melt adhesive, the upper glue injection groove and / or the lower glue injection groove is provided with a placement slot, a heating resistance wire is installed in the placement slot, the heating resistance wire extends out of the upper box cover and / or the lower box body, and a protective sleeve fixedly connected with the heating resistance wire is fixedly connected to the upper box cover and / or the lower box body. With such a design, the upper box cover and the lower box body can be easily disassembled and separated, thereby facilitating the replacement of the perovskite photovoltaic module.

[0014] As preferred, the upper box cover is provided with a second mounting groove, which is located directly above the positioning groove and communicates with the positioning groove, and a WCM film is arranged in the second mounting groove, and the projection of the WCM film in the vertical direction completely covers the projection of the first mounting groove in the vertical direction. With such a design, the WCM film can convert ultraviolet rays in sunlight into visible light, thereby improving the service life and power generation efficiency of the perovskite photovoltaic module.

[0015] As preferred, the photovoltaic module comprises, from bottom to top, a transparent conductive substrate, an electron transport layer, a perovskite light absorption layer, a hole transport layer and a metal electrode, and the upper box cover is provided with a terminal post electrically connected with the metal electrode.

[0016] The perovskite photovoltaic module has the advantages that:

[0017] The waterproof glue in the upper glue injection groove and the lower glue injection groove bonds the upper box cover and the lower box body together, thereby isolating the perovskite photovoltaic module from external water and oxygen, effectively delaying the degradation rate of the perovskite material in the perovskite photovoltaic module, and improving the service life of the perovskite photovoltaic module. When the perovskite photovoltaic module is damaged, the heating resistance wire is powered on, the waterproof glue is melted by the heat generated by the heating resistance wire, the upper box cover and the lower box body are separated, the damaged perovskite photovoltaic module is replaced, and the upper box cover and the lower box body can be reused, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the perovskite photovoltaic module with packaging function;

[0019] Figure 2 is a schematic diagram of the front view of the perovskite photovoltaic module with packaging function;

[0020] Figure 3 is Figure 2 is an enlarged view of the structure at A in FIG.

[0021] Figure 4 is a schematic diagram of the three-dimensional structure of the lower box body (excluding the one-way valve);

[0022] Figure 5 is a schematic diagram of the front view of the lower box body;

[0023] Figure 6 is a schematic diagram of the three-dimensional structure of the upper box cover;

[0024] Figure 7 is a schematic diagram of the front view of the upper box cover.

[0025] In the figure: 100, upper box cover; 110, upper glue injection groove; 120, glue outlet hole; 130, positioning groove; 140, glue outlet pipe; 150, second mounting groove; 160, WCM film; 170, terminal post;

[0026] 200, lower box body; 210, first mounting groove; 220, lower glue injection groove; 230, glue inlet hole; 240, raised edge; 250, glue inlet pipe; 260, setting groove; 270, heating resistance wire; 280, protective sleeve; 290, negative pressure pipe; 291, one-way valve;

[0027] 300, perovskite photovoltaic module; 310, transparent conductive substrate; 320, electron transport layer; 330, perovskite light absorption layer; 340, hole transport layer; 350, metal electrode. DETAILED DESCRIPTION

[0028] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that discussions of these implementations are intended to enable those with ordinary skill in the art to better understand and thus, possibly utilize the subject matter described herein in various ways. The elements and acts of the various examples described herein can be combined in various ways and can be omitted, substituted and / or added. Additionally, those with ordinary skill in the art will understand that many of the mechanisms recited herein are capable of being implemented in various ways and that the outlines provided herein are but one of a number of potential implementations.

[0029] For better understanding of the present application, the following will be combined with Figures 1-7 A perovskite photovoltaic module with packaging function is described in detail.

[0030] Example 1

[0031] As Figures 1-7 shown, a perovskite photovoltaic module with packaging function, comprising: an upper box cover 100, a lower box body 200 and a perovskite photovoltaic module 300, the lower box body 200 is provided with a first mounting groove 210, the perovskite photovoltaic module 300 is arranged in the first mounting groove 210, the upper box cover 100 is provided with an upper glue injection groove 110 on the side close to the lower box body 200, the lower box body 200 is provided with a lower glue injection groove 220 on the side close to the upper box cover 100, the upper glue injection groove 110 is communicated with the lower glue injection groove 220, the upper glue injection groove 110 and the lower glue injection groove 220 are filled with waterproof glue, the lower box body 200 is provided with a glue inlet hole 230 communicated with the lower glue injection groove 220, and the upper box cover 100 is provided with a glue outlet hole 120 communicated with the lower glue injection groove 220.

[0032] The upper box cover 100 is provided with a positioning groove 130 corresponding to the first mounting groove 210, and the projection size of the positioning groove 130 in the vertical direction is greater than the projection size of the first mounting groove 210 in the vertical direction. The lower shell top is provided with a convex edge 240 matched with the positioning groove 130.

[0033] The planar shape of the upper glue injection groove 110 and the lower glue injection groove 220 is annular, and the opening of the glue outlet hole 120 communicating with the upper glue injection groove 110 is located in the inner wall of the top of the upper glue injection groove 110.

[0034] The size of the upper glue injection groove 110 away from the opening is greater than the size of the opening, and the size of the lower glue injection groove 220 away from the opening is greater than the size of the opening. Such design is conducive to improving the stability of the bonding of the upper box cover 100 and the lower box body 200.

[0035] The upper box cover 100 is fixedly connected with a glue outlet pipe 140 matched with the glue outlet hole 120, and the lower box body 200 is fixedly connected with a glue inlet pipe 250 matched with the glue inlet hole 230.

[0036] The photovoltaic module includes, from bottom to top, a transparent conductive substrate 310, an electron transport layer 320, a perovskite light absorption layer 330, a hole transport layer 340 and a metal electrode 350. The upper box cover 100 is provided with a terminal post 170 electrically connected with the metal electrode 350.

[0037] It should be noted that one end of the glue inlet hole 230 is opened in the groove wall of the lower glue injection groove 220, the other end of the glue inlet hole 230 is opened in the outer surface of the lower box body 200, one end of the glue outlet hole 120 is opened in the groove wall of the upper glue injection groove 110, and the other end of the glue outlet hole 120 is opened in the outer surface of the upper box cover 100;

[0038] The waterproof glue is injected into the lower glue injection groove 220 through the glue inlet hole 230 at a suitable injection rate. As the injection amount increases, the waterproof glue gradually rises and fills the lower glue injection groove 220, and then flows to and fills the upper glue injection groove 110 until the upper glue injection groove 110 is filled. Continue to inject waterproof glue, and the excess waterproof glue will overflow from the glue outlet. After the waterproof glue in the lower glue injection groove 220 and the upper glue injection groove 110 is solidified, the upper box cover 100 and the lower box body 200 are bonded together to form a protective shell with good waterproof and sealing effect;

[0039] After the upper box cover 100 is buckled on the lower box body 200, the outer side surface of the convex edge 240 is matched with the inner side wall of the positioning groove 130 to realize the positioning of the upper box cover 100 and the lower box body 200. At this time, the upper glue injection groove 110 and the lower glue injection groove 220 are positionally corresponding, and it is not necessary to fix the relative position of the upper box cover 100 and the lower box body 200 in the horizontal direction, which is conducive to the injection of waterproof glue;

[0040] By setting the upper glue injection groove 110 and the lower glue injection groove 220 into a ring shape, the contact area of the waterproof glue in the upper glue injection groove 110 and the waterproof glue in the lower glue injection groove 220 can be increased, thereby improving the bonding strength of the upper box cover 100 and the lower box body 200, and improving the protection performance of the upper box cover 100 and the lower box body 200.

[0041] The inner size of the upper part of the upper glue injection groove 110 is greater than the opening size of the bottom of the upper glue injection groove 110, and the inner size of the bottom of the lower glue injection groove 220 is greater than the opening size of the top of the lower glue injection groove 220, so that the waterproof glue after curing will not be detached from the upper box cover 100 or the lower box body 200, thereby improving the stability of the connection between the upper box cover 100 and the lower box body 200.

[0042] In the embodiment, the materials of the upper box cover 100 and the lower box body 200 are tempered glass, the upper box cover 100 and the lower box body 200 have excellent light transmittance, and the surface is not easy to be scratched, so that the absorption of light energy by the perovskite photovoltaic module 300 is not affected, the plane shape of the convex edge 240 is a ring shape, and the inner side of the convex edge 240 is part of the inner side wall of the first mounting groove 210.

[0043] The cross section of the upper glue injection groove 110 is T-shaped, and the cross section of the lower glue injection groove 220 is inverted T-shaped, the waterproof glue in the upper glue injection groove 110 and the lower glue injection groove 220 forms a H-shaped structure after curing, and the longitudinal section of the glue outlet hole 120 is L-shaped.

[0044] By using the perovskite photovoltaic module with packaging function, the waterproof glue in the upper glue injection groove 110 and the lower glue injection groove 220 bonds the upper box cover 100 and the lower box body 200 together, and isolates the external water and oxygen from the perovskite photovoltaic module 300, which can effectively delay the degradation rate of the perovskite material in the perovskite photovoltaic module 300, thereby improving the service life of the perovskite photovoltaic module 300 and reducing the maintenance cost.

[0045] Embodiment 2:

[0046] As an optimization of embodiment 1, as shown in Figure 1 and Figure 4 The lower box body 200 is fixedly connected with a negative pressure pipe 290 in communication with the first mounting groove 210, and the negative pressure pipe 290 is provided with a one-way valve 291 at the end away from the lower box body 200.

[0047] It should be noted that after the upper box cover 100 is buckled on the lower box body 200, the external negative pressure device is connected to the one-way valve 291, thereby extracting part of the gas in the first mounting groove 210, so that the internal negative pressure value reaches the preset negative pressure value. Under the action of the internal negative pressure, the upper box cover 100 is tightly buckled on the lower box body 200, and then waterproof glue is injected. The waterproof glue will not leak out from the contact surface between the upper box cover 100 and the lower box body 200. Under the preset negative pressure value, the upper box cover and the lower box body can also be separated manually.

[0048] Embodiment 3:

[0049] As an optimization of Embodiment 2, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , the waterproof glue is a hot melt glue, the upper glue injection groove 110 and / or the lower glue injection groove 220 are provided with a mounting groove 260, a heating resistance wire 270 is installed in the mounting groove 260, the heating resistance wire 270 extends out of the upper box cover 100 and / or the lower box body 200, and the upper box cover 100 and / or the lower box body 200 are fixedly connected with a protective sleeve 280 which is fixedly sleeved with the heating resistance wire 270.

[0050] It should be noted that when the perovskite photovoltaic module 300 needs to be replaced, the heating resistance wire 270 is powered on, the heating resistance wire 270 converts electrical energy into heat energy, and the waterproof glue solidified in the upper glue injection groove 110 and the lower glue injection groove 220 is heated. Since the waterproof glue is a hot melt glue, the waterproof glue melts after being heated to the melting point, the bonding capacity is greatly reduced, the upper box cover 100 and the lower box body 200 can be easily separated, the replacement of the perovskite photovoltaic module 300 is facilitated, and the upper box cover 100 and the lower box body 200 can be reused, thereby reducing the maintenance cost.

[0051] In this embodiment, the waterproof glue is a PUR hot melt glue. After solidification, the PUR hot melt glue can form a dense protective film, has good waterproofness, and has excellent bonding performance, which can not only ensure the bonding strength of the upper box cover 100 and the lower box body 200, but also effectively block the penetration of dust particles, thereby playing a dustproof role and avoiding the influence of dust particles on the power generation efficiency of the perovskite photovoltaic module 300.

[0052] Only the mounting groove 260 is arranged in the lower glue injection groove 220 to save cost, and the heating resistance wire 270 is installed in the mounting groove 260 of the lower glue injection groove 220. The heating resistance wire 270 is powered on, the PUR hot melt glue is heated to above 130°C, and the PUR hot melt glue melts.

[0053] Embodiment 4:

[0054] As an optimization of Embodiment 3, as shown inFigure 2 、 Figure 6 and Figure 7 As shown, the upper cover 100 is provided with a second mounting groove 150, which is located directly above and communicates with the positioning groove 130. A WCM film 160 is disposed within the second mounting groove 150, with the vertical projection of the WCM film 160 completely covering the vertical projection of the first mounting groove 210. This design allows the WCM film 160 to convert ultraviolet rays from sunlight into visible light, thereby increasing the service life and power generation efficiency of the perovskite photovoltaic module 300.

[0055] It should be noted that ultraviolet rays in sunlight will accelerate the degradation of perovskite photovoltaic cells and seriously damage the perovskite material, thereby shortening the service life of the perovskite photovoltaic module 300. The WCM (wavelength conversion material) film can convert ultraviolet rays in sunlight into visible light, which not only reduces the impact of ultraviolet rays on the perovskite photovoltaic module 300 and increases the service life of the perovskite photovoltaic module 300, but also improves the utilization rate of light energy, thereby improving the power generation efficiency of the perovskite photovoltaic module 300.

[0056] In this embodiment, the WCM film 160 can convert ultraviolet light into blue light, which can be more effectively absorbed by the perovskite photovoltaic module 300 and generate more electron-hole pairs, thereby improving the photoelectric conversion efficiency. The length of the WCM film 160 is consistent with the length of the first mounting groove 210, the width of the WCM is greater than the width of the first mounting groove 210, and the size of the second mounting groove 150 is slightly larger than the size of the WCM film 160. When the upper box cover 100 is buckled on the lower box body 200, the convex edge 240 and the perovskite photovoltaic module 300 both abut against the WCM film 160, providing support for the WCM film 160.

[0057] The above describes an embodiment of the utility model in conjunction with the accompanying drawings, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this embodiment, ordinary technicians in this field can also make many forms without departing from the purpose of this embodiment and the scope of protection of the claims, all of which are protected by this embodiment.

Claims

1. A perovskite photovoltaic module with encapsulation function, characterized in that: include: An upper box cover (100), a lower box body (200) and a perovskite photovoltaic module (300), wherein the lower box body (200) is provided with a first installation groove (210), and the perovskite photovoltaic module (300) is arranged in the first installation groove (210), and a side of the upper box cover (100) close to the lower box body (200) is provided with an upper glue injection groove (110), and a side of the lower box body (200) close to the upper box cover (100) is provided with a glue injection groove (110) The upper glue injection groove (110) cooperates with the lower glue injection groove (220), and the upper glue injection groove (110) is connected to the lower glue injection groove (220). The upper glue injection groove (110) and the lower glue injection groove (220) are both filled with waterproof glue. The lower box body (200) is provided with a glue inlet hole (230) connected to the lower glue injection groove (220), and the upper box cover (100) is provided with a glue outlet hole (120) connected to the lower glue injection groove (220).

2. The perovskite photovoltaic module with encapsulation function according to claim 1, characterized in that: The upper box cover (100) is provided with a positioning groove (130) corresponding to the first installation groove (210), and the projection size of the positioning groove (130) in the vertical direction is larger than the projection size of the first installation groove (210) in the vertical direction, and the top of the lower box body is provided with a convex edge (240) that cooperates with the positioning groove (130).

3. The perovskite photovoltaic module with encapsulation function according to claim 2, characterized in that: The lower box body (200) is fixedly connected to a negative pressure pipe (290) in communication with the first installation groove (210), and a one-way valve (291) is installed at one end of the negative pressure pipe (290) away from the lower box body (200).

4. The perovskite photovoltaic module with encapsulation function according to claim 2, characterized in that: The upper glue injection groove (110) and the lower glue injection groove (220) are both annular in planar shape.

5. The perovskite photovoltaic module with encapsulation function according to claim 4, characterized in that: The size of the upper glue injection groove (110) away from its opening is larger than the size of its opening, and the size of the lower glue injection groove (220) away from its opening is larger than the size of its opening.

6. The perovskite photovoltaic module with encapsulation function according to claim 5, characterized in that: The opening through which the glue outlet hole (120) communicates with the upper glue injection groove (110) is located on the top inner wall of the upper glue injection groove (110).

7. The perovskite photovoltaic module with encapsulation function according to claim 6, characterized in that: The upper box cover (100) is fixedly connected to a glue outlet pipe (140) that cooperates with the glue outlet hole (120), and the lower box body (200) is fixedly connected to a glue inlet pipe (250) that cooperates with the glue inlet hole (230).

8. The perovskite photovoltaic module with encapsulation function according to claim 4, characterized in that: The waterproof glue is a hot melt glue, and a placement groove (260) is provided in the upper glue injection groove (110) and / or the lower glue injection groove (220), and a heating resistance wire (270) is installed in the placement groove (260). The heating resistance wire (270) extends out of the upper box cover (100) and / or the lower box body (200), and a protective cover (280) fixedly connected to the upper box cover (100) and / or the lower box body (200) is fixedly connected to the upper box cover (100) and / or the lower box body (200).

9. The perovskite photovoltaic module with encapsulation function according to claim 2, characterized in that: The upper box cover (100) is provided with a second mounting groove (150), the second mounting groove (150) is located directly above the positioning groove (130), and the second mounting groove (150) is communicated with the positioning groove (130), a WCM film (160) is provided in the second mounting groove (150), and the projection of the WCM film (160) in the vertical direction completely covers the projection of the first mounting groove (210) in the vertical direction.

10. The perovskite photovoltaic module with encapsulation function according to claim 1, characterized in that: The photovoltaic module comprises, from bottom to top, a transparent conductive substrate (310), an electron transport layer (320), a perovskite light absorption layer (330), a hole transport layer (340), and a metal electrode (350); the upper box cover (100) is provided with a terminal (170) electrically connected to the metal electrode (350).

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