Heating cavity and heating crystallization device

Abstract

The utility model provides a heating cavity and a heating crystallization device, the heating cavity comprises a bottom plate, an upper cover plate and a side plate, a sealing mechanism is arranged in the cavity, the sealing mechanism divides the cavity into an inner cavity, a middle cavity and an outer cavity, a heating plate is arranged in the inner cavity, and the outer cavity is arranged in the middle of the inner cavity. The middle cavity is used for allowing a wire connecting the heating plate and an external power source to penetrate through, and the outer cavity is used for heat insulation. Heat is supplied through the heating plate in the inner cavity, and a corresponding heating piece wire penetrates out of the middle cavity, so that it is ensured that the outer cavity can be always in a closed condition isolated from the outside in the working process of the outer cavity, a stable working environment can be maintained in the heating and drying process, and the purpose of improving the machining efficiency and effect is achieved. Compared with conventional heating and drying equipment at the present stage, the heating and drying equipment has the remarkable advantages that the working environment is stable, the processing time can be shortened, and the product quality can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of perovskite heating crystallization, in particular to a heating cavity and a heating crystallization device. Background Art

[0002] The perovskite layer is the light-absorbing layer of a perovskite solar cell, and the quality of the perovskite layer directly determines the photoelectric conversion efficiency of the perovskite solar cell.

[0003] The perovskite layer is generally made by coating a perovskite solution on a substrate and then undergoing vacuum drying and heating crystallization. Among them, heating crystallization uses a hot plate to heat the perovskite substrate after vacuum drying at a high temperature to promote the uniform growth of perovskite layer grains. Since the hot plate is internally provided with a heating element, the heating element is electrically connected to an external power supply through conduction. Because wire holes are opened on the hot plate, and these wire holes will cause the heating cavity provided with the hot plate to communicate with the outside world, resulting in the leakage of hot air in the heating cavity, which affects the temperature uniformity in the heating cavity, and also causes the gas evaporated from the solvent during the heating process to overflow. As a result, not only the heating efficiency is affected, but also organic volatile compounds are carried out. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem that gas overflows from the heating wire avoidance hole during the heating process in the prior art, and provide a heating cavity and a heating crystallization device.

[0005] To solve the above technical problem, the utility model provides a heating cavity, which comprises a cavity composed of a bottom plate, an upper cover plate and side plates. A sealing mechanism is arranged in the cavity. The sealing structure is parallel to the side plates and divides the cavity into an inner cavity, an intermediate cavity and an outer cavity. A heating plate is arranged in the inner cavity, and the intermediate cavity is used for the wire connecting the heating plate and the external power supply to pass through, and the outer cavity is used for heat insulation.

[0006] In an embodiment of the utility model, the sealing mechanism comprises a first frame body and a second frame body. One side of the first frame body is connected to the bottom plate, and the other side is connected to the second frame body. The inner cavity is arranged inside the second frame body, and the intermediate cavity is arranged between the first frame body and the second frame body.

[0007] In an embodiment of the utility model, at least one wire passing hole is arranged on the bottom plate, and at least one of the wire passing holes is correspondingly arranged in the intermediate cavity.

[0008] In an embodiment of the utility model, a heating element is arranged inside the heating plate, and the heating element is connected to the external power supply through the wire.

[0009] In an embodiment of the present utility model, a plurality of assembly holes and at least one limiting member are provided on the heating plate. The plurality of assembly holes are evenly distributed on the surface of the heating plate, and at least one limiting member is arranged around the edge of the heating plate. The element to be processed is located inside at least one limiting member.

[0010] In an embodiment of the present utility model, a rotating mechanism is further included. The upper cover plate is connected to the side plate through the rotating mechanism. Wherein, the rotating mechanism includes a support plate, a rotating shaft and a plurality of shaft seats. The support plate is arranged parallel and spaced apart from the outer surface of the side plate. The plurality of shaft seats are respectively arranged on the upper cover plate and the support plate. The rotating shaft is connected to the upper cover plate and passes through the plurality of shaft seats to be rotatably connected to the support plate.

[0011] In an embodiment of the present utility model, the upper cover plate includes an upper cover plate and a protective cover. The upper cover is connected to the outer surface of the upper cover plate, and the upper cover plate is connected to the support plate.

[0012] In an embodiment of the present utility model, a material through port is provided on the side plate, and the outer cavity is communicated with the outside through the material through port.

[0013] In an embodiment of the present utility model, a sealing structure is further included. The sealing structure is arranged at the connection between the sealing mechanism and the bottom plate.

[0014] The present utility model further provides a heating and crystallization device, which includes the above-mentioned heating cavity.

[0015] The above technical solution of the present utility model has the following advantages compared with the prior art:

[0016] For the heating cavity and the heating and crystallization device of the present utility model, heat is supplied by the heating plate in the inner cavity, and the wires of the corresponding heating elements are led out through the middle cavity, thereby ensuring that the outer cavity can always be in a sealed condition isolated from the outside during its working process. Furthermore, a stable working environment can be maintained during the heating and drying process, achieving the purpose of improving processing efficiency and effect. Compared with the conventional heating and drying equipment at the present stage, this application has significant advantages such as a stable working environment, a shortened processing time, and an improved product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to the specific embodiments of the present utility model in conjunction with the drawings.

[0018] Figure 1 is a three-dimensional structural schematic diagram of the heating cavity in the preferred embodiment of the present utility model;

[0019] Figure 2yes Figure 1 A bottom view of the heating chamber shown;

[0020] Figure 3 yes Figure 1 A left side view of the heating chamber shown;

[0021] Figure 4 yes Figure 1 Shown Figure 1 A schematic diagram of the three-dimensional structure of the bottom plate and the sealing mechanism in the heating cavity is shown.

[0022] Explanation of the reference numerals in the specification: 110, bottom plate; 111, threading hole; 120, side plate; 130, upper cover plate; 131, cover body; 132, protective cover; 140, rotating mechanism; 141, rotating shaft; 142, shaft seat; 143, thermal insulation pad; 144, support plate; 150, sealing mechanism; 151, first frame body; 152, second frame body; 160, heating plate; 161, limit member; 170, sealing structure. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Embodiment 1

[0025] See also Figure 1 As shown, this embodiment provides a heating cavity, which is used to process and prepare the light-absorbing layer of the perovskite cell, specifically, to heat and dry the liquid light-absorbing coating coated on the glass substrate of the perovskite cell. Its specific structure includes: a bottom plate 110, an upper cover plate 130, and a side plate 120. The sealing mechanism 150 is connected to the bottom plate 110 of the heating cavity. The sealing structure 170 divides the cavity into an inner cavity, an intermediate cavity, and an outer cavity. The inner cavity is connected to a heating plate 160. The intermediate cavity is used for the wires connecting the heating plate 160 and the external power supply to pass through, and the outer cavity is used for heat insulation.

[0026] The heating cavity described in this embodiment is heated by the heating plate 160 in the inner cavity, and the corresponding heating element wire is passed through the middle cavity, thereby ensuring that the outer cavity can always be in a closed condition isolated from the outside world during its operation, and thus a stable working environment can be maintained during the heating and drying process, thereby achieving the purpose of improving processing efficiency and effect. Compared with conventional heating and drying equipment at this stage, this application has significant advantages such as a stable working environment, shortened processing time, and improved product quality.

[0027] Specifically, Figure 1Taking the shown heating cavity as a reference, the first housing in this embodiment further includes a side plate 120 and an upper cover plate 130, and the bottom plate 110, the side plate 120 and the upper cover plate 130 jointly enclose the heating cavity. In this embodiment, the side plate 120 is supported on the upper surface of the bottom plate 110, and connecting portions deflecting towards the inside of the first cavity are provided in the height direction of the side plate 120. Both the bottom plate 110 and the upper cover plate 130 can be fixedly connected to the side plate 120 through the corresponding connecting portions. In other embodiments, elements such as sealing strips can also be adhered to the connecting portions to prevent the connection gaps between the side plate 120 and the bottom plate 110 or the upper cover plate 130 from affecting the stability of the processing environment. Further, a material through-hole is formed in the side plate 120, and the outer cavity communicates with the outside through the material through-hole to facilitate the entry and exit of the glass substrate to be processed into and out of the outer cavity.

[0028] Further, referring to Figure 1 and Figure 2As shown, the heating cavity further includes a rotating mechanism 140. The upper cover plate 130 is connected to the side plate 120 through the rotating mechanism 140. Among them, the rotating mechanism 140 includes a support plate 144, a rotating shaft 141, and a plurality of shaft seats 142. The bottom end of the support plate 144 is fixedly connected to the bottom plate 110 and is parallel to the outer surface of the side plate 120. The plurality of shaft seats 142 are respectively fixedly connected to the upper cover plate 130 and the support plate 144. The rotating shaft 141 is connected to the upper cover plate 130 and passes through the plurality of shaft seats 142 to be rotatably connected to the support plate 144. In this embodiment, the support plate 144 provides an installation platform for the shaft seats 142 and improves the connection stability of the upper cover plate 130 at the same time. The plurality of shaft seats 142 are respectively fixedly connected to one side of the edge of the upper cover plate 130 and the upper surface of the support plate 144. Two adjacent shaft seats 142 are respectively fixedly connected to the upper cover plate 130 and the support plate 144, so that the stress levels of the plurality of shaft seats 142 are the same. In this embodiment, since the inside of the first cavity is in a high-temperature state during the working state, the surface of the upper cover plate 130 has a relatively high temperature. Based on this, in order to reduce the influence of the high-temperature upper cover plate 130 on the support plate 144, a heat insulation pad 143 is connected between the shaft seat 142 and the support plate 144 in this application. The heat insulation pad 143 in this embodiment is preferably an elastic heat insulation pad. Therefore, it can not only reduce the heat transfer of the upper cover plate 130, but also form shock absorption and buffering for the upper cover plate 130 during the rotation process. During installation, the rotating shaft 141 passes through the plurality of shaft seats 142 in sequence, thereby realizing the rotational connection between the upper cover plate 130 and the support plate 144. The present utility model does not specifically limit the specific installation quantity of the shaft seats 142. In this embodiment, based on the rotating mechanism 140, when the upper cover plate 130 rotates counterclockwise, the top of the first cavity is communicated with the outside. At this time, the to-be-processed components can be taken and placed into the heating cavity through the opening at the top of the heating cavity. When the upper cover plate 130 rotates clockwise, the opening at the top of the heating cavity is sealed by the upper cover plate 130. At this time, the top of the heating cavity is isolated from the outside, thereby facilitating the creation of a subsequent high-sealing processing environment.

[0029] Furthermore, referring to Figures 1 to 3 As shown, the upper cover plate 130 in this embodiment includes a cover body 131 and a protective cover 132. The protective cover 132 is connected to the outer surface of the cover body 131. The cover body 131 is connected to the support plate 144. Among them, the cover body 131 is used to contact the side plate 120 to seal the top of the heating cavity. The protective cover 132 is detachably connected to the outside of the cover body 131. On the one hand, it is used to protect the upper cover body 131, and on the other hand, it also has a heat insulation effect, thereby avoiding the loss of the internal temperature of the heating cavity and improving the thermal conversion rate of the heating component.

[0030] Referring to Figure 4As shown, the sealing mechanism 150 includes a heating plate 160, the heating plate 160 is connected to the sealing structure 170, and the element to be processed is placed on the sealing structure 170. Specifically, this embodiment includes a sealing structure 170, the sealing structure 170 is connected to the connection between the sealing mechanism 150 and the bottom plate 110, and it is preferably a double-sided silicone-coated fiberglass cloth. Thus, while realizing the tight connection between the sealing mechanism 150 and the bottom plate 110, the sealing degree between the two is also improved, eliminating the possibility of gas overflowing from the connection gap between the two. Specifically, a heating element is provided in the heating plate 160, and the heating element is connected to the external power supply through the wire. The heating element in this embodiment is preferably an electric heating wire. The present utility model does not make specific limitations on the type, quantity, and installation position of the heating element.

[0031] Furthermore, the sealing mechanism 150 includes a first frame 151 and a second frame 152. One side of the first frame 151 is connected to the bottom plate 110, and the other side is connected to the second frame 152. The inner cavity is located inside the second frame 152, and the intermediate cavity is located between the first frame 151 and the second frame 152. Further specifically, at least one wire passing hole 111 is provided on the bottom plate 110, and at least one of the wire passing holes 111 is correspondingly located in the intermediate cavity. Based on this, in this application, the heat source in the inner cavity provides heat energy for the drying and crystallization of the glass substrate. At the same time, the heat source connection wire can pass through the wire passing hole 111 in the intermediate cavity to penetrate the heating cavity. Thus, it will neither affect the connection and layout of the wires nor ensure that the outer wall is always in a highly sealed environment during operation, thereby avoiding the problem that the conventional heating cavity is connected to the outside, resulting in the leakage of hot air in the heating cavity. Specifically, the side walls of the first frame 151 and the second frame 152 in this embodiment are respectively parallel to the side plates 120 on the same side.

[0032] During actual use, the heating plate 160 is detachably connected to the top of the second housing 152 through bolts. It is used to carry the element to be processed and also to transfer the heat of the heat source to indirectly heat the element to be processed. Specifically, the heating plate 160 in this embodiment is preferably an aluminum plate with high thermal conductivity. In this embodiment, in the thickness direction of the device, the spacing distance between the heating plate 160 and the upper cover plate 130 is preferably 5 - 30 mm. During actual use, this spacing distance can be adaptively adjusted according to actual processing requirements or for different elements to be processed. Further, a plurality of assembly holes and at least one limiting member 161 are provided on the heating plate 160. The plurality of assembly holes are evenly distributed on the surface of the heating plate 160. At least one limiting member 161 is connected to the edge of the heating plate 160 through bolts. The element to be processed is positioned in different assembly holes of the heating plate 160 through a support member or a frame, etc., and the element to be processed is located inside at least one limiting member 161. In this embodiment, four limiting members 161 are provided on the upper surface of the heating plate 160, and the four limiting members 161 are respectively connected to the four corners of the heating plate 160, thereby limiting the element to be processed carried thereon from different directions, and further improving the stability of the element during the processing process.

[0033] Embodiment 2

[0034] This embodiment provides a thermal crystallization device, which includes the heating cavity described in Embodiment 1.

[0035] In summary, for the heating cavity and the heating and crystallization device of the present invention, heat is supplied by the heating plate 160 in the inner cavity, and the corresponding heating element wires are led out through the middle cavity, thereby ensuring that the outer cavity can always be in a sealed condition isolated from the outside during its operation, and further maintaining a stable working environment during the heating and drying process, achieving the purpose of improving the processing efficiency and effect. Compared with the current conventional heating and drying equipment, this application has significant advantages such as a stable working environment, a shortened processing time, and an improved product quality.

[0036] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A heating chamber, comprising a bottom plate, an upper cover plate, and a side plate, characterized in that: A sealing mechanism is provided in the cavity, which divides the cavity into an inner cavity, an intermediate cavity and an outer cavity. A heating plate is provided in the inner cavity, the intermediate cavity is used for passing wires connecting the heating plate and an external power source, and the outer cavity is used for heat insulation.

2. The heating chamber according to claim 1, characterized in that: The sealing mechanism includes a first frame and a second frame, one side of the first frame is connected to the bottom plate, and the other side is connected to the second frame, the inner cavity is arranged inside the second frame, and the middle cavity is arranged between the first frame and the second frame.

3. The heating chamber according to claim 1 or 2, characterized in that: At least one threading hole is provided on the bottom plate, and at least one threading hole is correspondingly arranged in the middle cavity.

4. The heating chamber according to claim 1, characterized in that: A heating element is arranged in the heating plate, and the heating element is connected to the external power source through the wire.

5. The heating chamber according to claim 4, characterized in that: The heating plate is provided with a plurality of assembly holes and at least one stopper, wherein the plurality of assembly holes are evenly distributed on the surface of the heating plate, at least one stopper is arranged around the edge of the heating plate, and the component to be processed is located inside the at least one stopper.

6. The heating chamber according to claim 1 or 5, characterized in that: It also includes a rotating mechanism, and the upper cover plate is connected to the side plate through the rotating mechanism, wherein the rotating mechanism includes a support plate, a rotating shaft and a plurality of shaft seats, the support plate is arranged parallel to the outer surface of the side plate and spaced apart, the plurality of shaft seats are respectively arranged on the upper cover plate and the support plate, the rotating shaft is connected to the upper cover plate, and passes through a plurality of the shaft seats so as to be rotatably connected to the support plate.

7. The heating chamber according to claim 6, characterized in that: The upper cover plate comprises an upper cover plate and a shield, wherein the upper cover plate is connected to the outer surface of the upper cover plate, and the upper cover plate is connected to the support plate.

8. The heating chamber according to claim 1, characterized in that: The side plate is provided with a material through-port, and the outer cavity is communicated with the outside world through the material through-port.

9. The heating chamber according to claim 1, characterized in that: It also includes a sealing structure, which is arranged at the connection between the sealing mechanism and the bottom plate.

10. A heating crystallization device, characterized in that: The heating chamber comprises the heating chamber as described in any one of claims 1 to 9.

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